U.S. patent application number 16/718817 was filed with the patent office on 2020-06-18 for ceiling type indoor unit of air conditioner.
The applicant listed for this patent is LG ELECTRONICS INC.. Invention is credited to Jaeheuk CHOI, Juyoun LEE, Jinwoo YOO.
Application Number | 20200191420 16/718817 |
Document ID | / |
Family ID | 68965666 |
Filed Date | 2020-06-18 |
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United States Patent
Application |
20200191420 |
Kind Code |
A1 |
LEE; Juyoun ; et
al. |
June 18, 2020 |
CEILING TYPE INDOOR UNIT OF AIR CONDITIONER
Abstract
According to the present disclosure, during a cooling operation,
a reference set temperature Ts0 is increased by 1.degree. C. after
a first control to set a set temperature Ts, the set temperature Ts
is further increased by 1.degree. C. after a second control to set
the set temperature Ts, the second control is repeated after the
set temperature Ts increases by 2.degree. C. from the reference set
temperature Ts0, and the set temperature Ts increased by 2.degree.
C. can be decreased to the reference set temperature Ts0 step by
step.
Inventors: |
LEE; Juyoun; (Seoul, KR)
; CHOI; Jaeheuk; (Seoul, KR) ; YOO; Jinwoo;
(Seoul, KR) |
|
Applicant: |
Name |
City |
State |
Country |
Type |
LG ELECTRONICS INC. |
Seoul |
|
KR |
|
|
Family ID: |
68965666 |
Appl. No.: |
16/718817 |
Filed: |
December 18, 2019 |
Current U.S.
Class: |
1/1 |
Current CPC
Class: |
F24F 1/0014 20130101;
F24F 1/0047 20190201; F24F 11/79 20180101; F24F 2013/0616 20130101;
F24F 11/0001 20130101 |
International
Class: |
F24F 11/00 20060101
F24F011/00; F24F 1/0047 20060101 F24F001/0047 |
Foreign Application Data
Date |
Code |
Application Number |
Dec 18, 2018 |
KR |
10-2018-0164361 |
Claims
1. A control method of a ceiling type indoor unit including a case
which is installed to be suspended to a ceiling of a room, includes
a suction port formed on a bottom surface, and includes a first
discharge port and a third discharge port disposed to face each
other based on the suction port and a second discharge port and a
fourth discharge port disposed to face each other based on the
suction port, a first vane module which is disposed in the first
discharge port, constitutes one of a first discharge pair, and
discharges air in a first discharge direction, a second vane module
which is disposed in the second discharge port, constitutes one of
a second discharge pair, and discharges air in a second discharge
direction, a third vane module which is disposed in the third
discharge port, constitutes the other one of the first discharge
pair, and discharges air in a third discharge direction, and a
fourth vane module which is disposed in the fourth discharge port,
constitutes the other one of the second discharge pair, and
discharges air in a fourth discharge direction, the control method
comprising: a step S10 of turning on a cooling mode; a first
control of, in a case where a current temperature Tp in the room is
equal to or higher than a reference set temperature Ts0 after Step
S10, operating the first discharge pair at one inclination angle
and operating the second discharge pair at another inclination
angle; a step S100 of increasing the reference set temperature Ts0
by a first reference value to set a set temperature Ts after the
first control; and a second control of, after Step S100, operating
the first discharged air at another inclination angle and operating
the second discharge pair at the one inclination angle.
2. The control method of claim 1, wherein the first control
includes a step S14 of, after Step S10, comparing the reference set
temperature Ts0 and the current temperature Tp, an auto swing step
S20 of, in a case where the current temperature Tp is equal to or
higher than the reference set temperature Ts0, after Step S14,
simultaneously operating the first discharge pair and the second
discharge pair for a reset auto time, a first concentration
improvement cooling step S40 of, after Step S20, operating the
first discharge pair at the one inclination angle and operating the
second discharge pair at another inclination angle, a first oblique
wind unity step S50 of, after Step 40, operating the first
discharge pair and the second discharge pair at the other
inclination angle, and a step S60 of, after Step S50, determining
whether or not the current temperature Tp is equal to or less than
the reference set temperature Ts0, and in a case where Step S60 is
satisfied, the step proceeds Step S100.
3. The control method of claim 2, further comprising: a second
concentration improvement cooling step S70 of, in a case where Step
S60 is not satisfied, operating the first discharge pair at another
inclination angle and operating the second discharge pair at one
inclination angle; a second oblique wind unity step S80 of, after
Step S70, operating the first discharge pair and the second
discharge pair at the other inclination angle; and a step S90 of,
after Step S80, determining whether or not the current temperature
Tp is equal to or less than the reference set temperature Ts0,
wherein in a case where Step S90 is satisfied, the step proceeds to
Step S100, and in a case where Step S90 is not satisfied, the step
is returned to Step S40.
4. The control method of claim 1, wherein the second control
includes a first-A concentration improvement cooling step S110 of,
after Step S100, operating the first discharge pair at the one
inclination angle and operating the second discharge pair at anther
inclination angle, a second oblique wind unity cooling step S120
of, after Step S110, operating the first discharge pair and the
second discharge pair at the other inclination angle, and a step
S130 of, after Step S120, determining whether or not the current
temperature Tp is equal to or less than the set temperature Ts.
5. The control method of claim 4, further comprising: a third-A
concentration improvement cooling step S140 of, in a case where
Step S130 is not satisfied, operating the first discharge pair at
another inclination angle and operating the second discharge pair
at the one inclination angle; a fourth-A concentration improvement
cooling step S150 of, after Step S140, operating the first
discharge pair and the second discharge pair at the other
inclination angle; and a step S160 of, after Step S150, determining
whether or not the current temperature Tp is equal to or less than
the set temperature Ts.
6. The control method of claim 4, further comprising: a step S170
of determining, after the second control, determining the number of
second controls, wherein in a case where the number of second
controls determined in Step S170 is "0", the set temperature Ts is
increased by the first reference number, a count of the second
control is increased by one, and the step is returned to Step
S110.
7. The control method of claim 4, further comprising: a step S170
of determining, after the second control, determining the number of
second controls, wherein in a case where the number of second
controls determined in Step S170 is "1", the set temperature Ts is
decreased by the first reference number, a count of the second
control is increased by one, and the step is returned to Step
S110.
8. The control method of claim 4, further comprising: a step S170
of determining, after the second control, determining the number of
second controls, wherein in a case where the number of second
controls determined in Step S170 is "2", the set temperature Ts is
increased by the first reference number, a count of the second
control is decreased by one, and the step is returned to Step
S110.
9. The control method of claim 1, wherein the first reference value
is 1.degree. C., after the first control, the reference set
temperature Ts0 is increased by 1.degree. C. to set the set
temperature Ts, and after second control, the set temperature Ts is
increased by 1.degree. C. to set the set temperature Ts, and after
the set temperature Ts is increased by 2.degree. C. than the
reference set temperature Ts0, the second control is repeated such
that the set temperature increased by 2.degree. C. is decreased to
the reference set temperature Ts0.
10. The control method of claim 4, further comprising: a step S170
of determining, after the second control, determining the number of
second controls, wherein in a case where the number of second
controls determined in Step S170 is "0", the set temperature Ts is
increased by the first reference number, a count of the second
control is increased by one, and the step is returned to Step S110,
in a case where the number of second controls determined in Step
S170 is "1", the set temperature Ts is decreased by the first
reference number, a count of the second control is increased by
one, and the step is returned to Step S110, and in a case where the
number of second controls determined in Step 3170 is "2", the set
temperature Ts is increased by the first reference number, a count
of the second control is decreased by one, and the step is returned
to Step S110.
11. The control method of claim 1, wherein the first control
includes a step S14 of, after Step S10, comparing the reference set
temperature Ts0 and the current temperature Tp, an auto swing step
S20 of, in a case where the current temperature Tp is equal to or
higher than the reference set temperature Ts0, after Step S14,
simultaneously operating the first discharge pair and the second
discharge pair for a reset auto time, a first concentration
improvement cooling step S40 of, after Step S20, operating the
first discharge pair at the one inclination angle and operating the
second discharge pair at another inclination angle, a first oblique
wind unity step S50 of, after Step 40, operating the first
discharge pair and the second discharge pair at the other
inclination angle, and a step S60 of, after Step S50, determining
whether or not the current temperature Tp is equal to or less than
the reference set temperature Ts0, a second concentration
improvement cooling step S70 of, in a case where Step S60 is not
satisfied, operating the first discharge pair at another
inclination angle and operating the second discharge pair at one
inclination angle, a second oblique wind unity step S80 of, after
Step S70, operating the first discharge pair and the second
discharge pair at the other inclination angle, and a step S90 of,
after Step S80, determining whether or not the current temperature
Tp is equal to or less than the reference set temperature Ts0,
wherein the second control includes a first-A concentration
improvement cooling step S110 of, after Step S100, operating the
first discharge pair at the one inclination angle and operating the
second discharge pair at anther inclination angle, a second oblique
wind unity cooling step S120 of, after Step S110, operating the
first discharge pair and the second discharge pair at the other
inclination angle, a step S130 of, after Step S120, determining
whether or not the current temperature Tp is equal to or less than
the set temperature Ts, a third-A concentration improvement cooling
step S140 of, in a case where Step S130 is not satisfied, operating
the first discharge pair at another inclination angle and operating
the second discharge pair at the one inclination angle, a fourth-A
concentration improvement cooling step S150 of, after Step S140,
operating the first discharge pair and the second discharge pair at
the other inclination angle, and a step S160 of, after Step S150,
determining whether or not the current temperature Tp is equal to
or less than the set temperature Ts.
12. The control method of claim 11, wherein in a case where Step
S60 or S90 is satisfied, the step proceeds to Step S100, in a case
where Step S90 is not satisfied, the step is returned to S40, and
in a case where Step S160 is not satisfied, the step is returned to
Step S110.
13. The control method of claim 11, further comprising: a step S170
of determining, after the second control, determining the number of
second controls, wherein in a case where Step S130 or S160 is
satisfied, the step proceeds to Step S170, in a case where the
number of second controls determined in Step S170 is "0", the set
temperature Ts is increased by the first reference number, a count
of the second control is increased by one, and the step is returned
to Step S110, in a case where the number of second controls
determined in Step S170 is "1", the set temperature Ts is decreased
by the first reference number, a count of the second control is
increased by one, and the step is returned to Step S110, and in a
case where the number of second controls determined in Step S170 is
"2", the set temperature Ts is increased by the first reference
number, a count of the second control is decreased by one, and the
step is returned to Step S110.
14. The control method of claim 1, wherein another inclination
angle is formed more vertically in an up-down direction than the
one inclination angle.
15. The control method of claim 1, wherein another inclination
angle is formed more vertically in an up-down direction than the
one inclination angle, and the other inclination angle is formed
between the one inclination angle and another inclination
angle.
16. The control method of claim 1, wherein each vane module
includes a first vane configured to be disposed in the discharge
port, a second vane configured to be disposed in the discharge
port, a vane motor configured to be assembled to the case and
supply a driving force to the first vane and the second vane, a
drive link configured to be assembled to be rotatable relative to
the case, to be coupled to the vane motor, and transmit the driving
force of the vane motor to the first vane and the second vane, a
first vane line configured to be assembled to be rotatable relative
to the case and the first vane, and a second vane link configured
to be assembled to be rotatable relative to the drive link and the
second vane.
17. The method of claim 16, wherein when the one inclination angle
is provided, a rear end of the first vane is located higher than a
front end of the second vane.
18. The control method of claim 16, wherein in the one inclination
angle, the first vane forms an inclination from 16.degree. to
29.degree. and the second vane forms an inclination of 57.degree.
to 67.degree., and in the another inclination angle, the first vane
forms an inclination from 35.degree. to 44.degree. and the second
vane forms an inclination of 70.degree. to 72.degree..
19. A control method of a ceiling type indoor unit including a case
which is installed to be suspended to a ceiling of a room, includes
a suction port formed on a bottom surface, and includes a first
discharge port disposed on one side and a second discharge pair
disposed on the other side based on the suction port, the control
method comprising: a step S10 of turning on a cooling mode; a first
control of, in a case where a current temperature Tp in the room is
equal to or higher than a reference set temperature Ts0 after Step
S10, operating the first discharge pair at one inclination angle
and operating the second discharge pair at another inclination
angle; a step S100 of increasing the reference set temperature Ts0
by a first reference value to set a set temperature Ts after the
first control; and a second control of, after Step S100, operating
the first discharged air at another inclination angle and operating
the second discharge pair at the one inclination angle.
Description
BACKGROUND OF THE INVENTION
Field of the Invention
[0001] The present disclosure relates to a control method of a
ceiling type indoor unit of an air conditioner, and more
particularly, to a control method of a ceiling type indoor unit
capable of improving a user's concentration.
Related Art
[0002] In general, an air conditioner includes a compressor, a
condenser, an evaporator, and an expander, and uses an air
conditioning cycle to supply cold air or warm air to a building or
a room.
[0003] The air conditioner is structurally divided into a separate
type air conditioner in which the compressor is disposed outdoors
and an integrated type air conditioner in which the compressor is
integrally manufactured.
[0004] In the separate type air conditioner, an indoor heat
exchanger is installed in an indoor unit, an outdoor heat exchanger
and a compressor are installed in an outdoor unit, and two
separated units are connected to by a refrigerant pipe.
[0005] In the integrated type air conditioner, an indoor heat
exchanger, an outdoor heat exchanger, and a compressor installed in
one case. The integrated type air conditioner includes a window
type air conditioner in which the air conditioner is directly
installed in a window, and a duct type air conditioner in which a
suction duct and a discharge duct are connected to each other and
the air conditioner is installed outside the room.
[0006] In general, the separate air conditioner is distinguished
according to an installation type of the indoor unit.
[0007] An air conditioner in which the indoor unit is vertically
installed in an indoor space is referred to as a stand type air
conditioner, an air conditioner in which the indoor unit is
installed on an Indoor wall is referred to as a wall-mounted air
conditioner, and an air conditioner in which the indoor unit is
installed on a ceiling of the room is referred to as a ceiling type
indoor unit.
[0008] In addition, as a type of the separate air conditioner,
there is a system air conditioner which can provide air-conditioned
air in a plurality of spaces.
[0009] In a case of the system air conditioner, there are a system
air conditioner which includes a plurality of indoor units and
performs air conditioning on the room and a system air conditioner
which supplies the air-conditioned air to each space through a
duct.
[0010] The plurality of indoor units provided in the system air
conditioner may include any of a stand type indoor unit, a wall
type indoor unit or a ceiling type indoor unit.
[0011] In the related art, the ceiling type indoor unit includes a
case which is suspended from a ceiling wall and a front panel which
covers a bottom surface of the case and is installed on the same
surface as a ceiling.
[0012] A suction port is disposed in a center of the front panel, a
plurality of discharge ports are disposed outside the suction port,
and a discharge vane is provided for each discharge port.
[0013] In the related art, the ceiling-type indoor unit provides
only an airflow control according to an indoor temperature and a
target temperature and does not provide a control capable of
improving a user's concentration.
SUMMARY OF THE INVENTION
[0014] The present disclosure provides a control method of a
ceiling type indoor unit capable of improving a user's
concentration.
[0015] The present disclosure provides a control method of a
ceiling type indoor unit which provides at least two vane modules
installed at inclination angles different from each other to
rapidly cool or heat a room, and thus, improve an occupant's
concentration.
[0016] The present disclosure provides a control method for the
ceiling type indoor unit which controls each of four vane modules
to improve an occupant's concentration while rapidly cooling or
heating the room.
[0017] The present disclosure provides a control method for the
ceiling type indoor unit in which a first discharge pair and a
second discharge pair disposed in directions from each other of
four vane modules discharged air at angles different from each
other to cool or heat a room.
[0018] The present disclosure provides a control method for the
ceiling type indoor unit which increases a reference set
temperature Ts0 by 1.degree. C. after a first control to set a set
temperature Ts, further increases the set temperature Ts by
1.degree. C. after a second control to set the set temperature Ts,
repeats the second control after the set temperature Ts increases
by 2.degree. C. from the reference set temperature Ts0, and
decreases the set temperature Ts increased by 2.degree. C. to the
reference set temperature Ts0 step by step.
[0019] Objects of the present disclosure are not limited to the
above-mentioned objects, and other objects not mentioned above may
be clearly understood by those skilled in the art from the
following description.
[0020] In the present disclosure, during a cooling operation, a
process is repeated, in which a set temperature is increased by a
first reference value from a reference set temperature Ts0, and
then, the increased set temperature Ts is decreased by the first
reference value step by step to the reference set temperature Ts0,
and thus, an occupant's concentration is improved.
[0021] In the present disclosure, during a heating operation, a
process is repeated, in which a set temperature is decreased by a
first reference value step by step from a reference set temperature
Ts0, and then, the decreased set temperature Ts is increased by the
first reference value step by step to the reference set temperature
Ts0, and thus, an occupant's concentration is improved.
[0022] In the present disclosure, during the cooling operation,
after the first control, the reference set temperature Ts0 is
increased by 1.degree. C. to set the set temperature Ts, and after
second control, the set temperature Ts is increased by 1.degree. C.
to set the set temperature Ts, and after the set temperature Ts is
increased by 2.degree. C. than the reference set temperature Ts0,
the second control is repeated such that the set temperature
increased by 2.degree. C. is decreased step by step to the
reference set temperature Ts0.
[0023] In the present disclosure, at least two vane modules
discharged air in directions different from each other, the two
vane modules are provided at inclination angle different from each
other, and different inclination angles can be provided according
to the current temperature in the room.
[0024] In the present disclosure, a first discharge pair and a
second discharge pair are disposed to be inclined in different
directions from each other and discharged air, and then,
inclination angles of the first discharge pair and the second
discharge pair are alternated according to the current temperature
in the room. Accordingly, it is possible to improve the occupant's
concentration.
[0025] In the present disclosure, the first discharge pair and the
second discharge pair, which are disposed in directions different
from each other out of four vane modules, discharged air at angles
different from each other, and can cool or heat the room.
Accordingly, it is possible to improve a concentration.
[0026] In aspect, there is provided a control method of a ceiling
type indoor unit including a case which is installed to be
suspended to a ceiling of a room, includes a suction port formed on
a bottom surface, and includes a first discharge port and a third
discharge port disposed to face each other based on the suction
port and a second discharge port and a fourth discharge port
disposed to face each other based on the suction port, a first vane
module which is disposed in the first discharge port, constitutes
one of a first discharge pair, and discharges air in a first
discharge direction, a second vane module which is disposed in the
second discharge port, constitutes one of a second discharge pair,
and discharges air in a second discharge direction, a third vane
module which is disposed in the third discharge port, constitutes
the other one of the first discharge pair, and discharges air in a
third discharge direction, and a fourth vane module which is
disposed in the fourth discharge port, constitutes the other one of
the second discharge pair, and discharges air in a fourth discharge
direction, the control method including: a step S10 of turning on a
cooling mode; a first control of, in a case where a current
temperature Tp in the room is equal to or higher than a reference
set temperature Ts0 after Step S10, operating the first discharge
pair at one inclination angle and operating the second discharge
pair at another inclination angle; a step S100 of increasing the
reference set temperature Ts0 by a first reference value to set a
set temperature Ts after the first control; and a second control
of, after Step S100, operating the first discharged air at another
inclination angle and operating the second discharge pair at the
one inclination angle.
[0027] The first control may include a step S14 of, after Step S10,
comparing the reference set temperature Ts0 and the current
temperature Tp, an auto swing step S20 of, in a case where the
current temperature Tp is equal to or higher than the reference set
temperature Ts0, after Step S14, simultaneously operating the first
discharge pair and the second discharge pair for a reset auto time,
a first concentration improvement cooling step S40 of, after Step
S20, operating the first discharge pair at the one inclination
angle and operating the second discharge pair at another
inclination angle, a first oblique wind unity step S50 of, after
Step 40, operating the first discharge pair and the second
discharge pair at the other inclination angle, and a step S60 of,
after Step S50, determining whether or not the current temperature
Tp is equal to or less than the reference set temperature Ts0, and
in a case where Step S60 is satisfied, the step may proceed Step
S100.
[0028] The control method may further include: a second
concentration improvement cooling step S70 of, in a case where Step
S60 is not satisfied, operating the first discharge pair at another
inclination angle and operating the second discharge pair at one
inclination angle; a second oblique wind unity step S80 of, after
Step S70, operating the first discharge pair and the second
discharge pair at the other inclination angle; and a step S90 of,
after Step S80, determining whether or not the current temperature
Tp is equal to or less than the reference set temperature Ts0, in
which in a case where Step S90 is satisfied, the step may proceed
to Step S100, and in a case where Step S90 is not satisfied, the
step may be returned to Step S40.
[0029] The second control may further include a first-A
concentration improvement cooling step S110 of, after Step S100,
operating the first discharge pair at the one inclination angle and
operating the second discharge pair at anther inclination angle, a
second oblique wind unity cooling step S120 of, after Step S110,
operating the first discharge pair and the second discharge pair at
the other inclination angle, and a step S130 of, after Step S120,
determining whether or not the current temperature Tp is equal to
or less than the set temperature Ts.
[0030] The control method may further include: a third-A
concentration improvement cooling step S140 of, in a case where
Step S130 is not satisfied, operating the first discharge pair at
another inclination angle and operating the second discharge pair
at the one inclination angle; a fourth-A concentration improvement
cooling step S150 of, after Step S140, operating the first
discharge pair and the second discharge pair at the other
inclination angle; and a step S160 of, after Step S150, determining
whether or not the current temperature Tp is equal to or less than
the set temperature Ts.
[0031] The control method may further include: a step S170 of
determining, after the second control, determining the number of
second controls, in which in a case where the number of second
controls determined in Step S170 is "0", the set temperature Ts may
be increased by the first reference number, a count of the second
control may be increased by one, and the step may be returned to
Step S110.
[0032] The control method may further include: a step S170 of
determining, after the second control, determining the number of
second controls, in which in a case where the number of second
controls determined in Step S170 is "1", the set temperature Ts may
be decreased by the first reference number, a count of the second
control may be increased by one, and the step may be returned to
Step S110.
[0033] The control method may further include: a step S170 of
determining, after the second control, determining the number of
second controls, in which in a case where the number of second
controls determined in Step S170 is "2", the set temperature Ts may
be increased by the first reference number, a count of the second
control may be decreased by one, and the step may be returned to
Step S110.
[0034] The first reference value may be 1.degree. C., after the
first control, the reference set temperature Ts0 may be increased
by 1.degree. C. to set the set temperature Ts, and after second
control, the set temperature Ts may be increased by 1.degree. C. to
set the set temperature Ts, and after the set temperature Ts is
increased by 2.degree. C. than the reference set temperature Ts0,
the second control may be repeated such that the set temperature
increased by 2.degree. C. is decreased to the reference set
temperature Ts0.
[0035] The control method may further includes: a step S170 of
determining, after the second control, determining the number of
second controls, in which in a case where the number of second
controls determined in Step S170 is "0", the set temperature Ts may
be increased by the first reference number, a count of the second
control may be increased by one, and the step may be returned to
Step S110, in a case where the number of second controls determined
in Step S170 is "1", the set temperature Ts may be decreased by the
first reference number, a count of the second control may be
increased by one, and the step may be returned to Step S110, and in
a case where the number of second controls determined in Step S170
is "2", the set temperature Ts may be increased by the first
reference number, a count of the second control may be decreased by
one, and the step may be returned to Step S110.
[0036] The first control may include a step S14 of, after Step S10,
comparing the reference set temperature Ts0 and the current
temperature Tp, an auto swing step S20 of, in a case where the
current temperature Tp is equal to or higher than the reference set
temperature Ts0, after Step S14, simultaneously operating the first
discharge pair and the second discharge pair for a reset auto time,
a first concentration improvement cooling step S40 of, after Step
S20, operating the first discharge pair at the one inclination
angle and operating the second discharge pair at another
inclination angle, a first oblique wind unity step S50 of, after
Step 40, operating the first discharge pair and the second
discharge pair at the other inclination angle, and a step S60 of,
after Step S50, determining whether or not the current temperature
Tp is equal to or less than the reference set temperature Ts0, a
second concentration improvement cooling step S70 of, in a case
where Step S60 is not satisfied, operating the first discharge pair
at another inclination angle and operating the second discharge
pair at one inclination angle, a second oblique wind unity step S80
of, after Step S70, operating the first discharge pair and the
second discharge pair at the other inclination angle, and a step
S90 of, after Step S80, determining whether or not the current
temperature Tp is equal to or less than the reference set
temperature Ts0, and the second control may include a first-A
concentration improvement cooling step S110 of, after Step S100,
operating the first discharge pair at the one inclination angle and
operating the second discharge pair at anther inclination angle, a
second oblique wind unity cooling step S120 of, after Step S110,
operating the first discharge pair and the second discharge pair at
the other inclination angle, a step S130 of, after Step S120,
determining whether or not the current temperature Tp is equal to
or less than the set temperature Ts, a third-A concentration
improvement cooling step S140 of, in a case where Step S130 is not
satisfied, operating the first discharge pair at another
inclination angle and operating the second discharge pair at the
one inclination angle, a fourth-A concentration improvement cooling
step S150 of, after Step S140, operating the first discharge pair
and the second discharge pair at the other inclination angle, and a
step S160 of, after Step S150, determining whether or not the
current temperature Tp is equal to or less than the set temperature
Ts.
[0037] In a case where Step S60 or S90 is satisfied, the step may
proceed to Step S100, in a case where Step S90 is not satisfied,
the step may be returned to S40, and in a case where Step S160 is
not satisfied, the step may be returned to Step S110.
[0038] The control method may further include: a step S170 of
determining, after the second control, determining the number of
second controls, in which in a case where Step S130 or S160 is
satisfied, the step may proceed to Step S170, in a case where the
number of second controls determined in Step S170 is "0", the set
temperature Ts may increased by the first reference number, a count
of the second control may be increased by one, and the step may be
returned to Step S110, in a case where the number of second
controls determined in Step S170 is "1", the set temperature Ts may
be decreased by the first reference number, a count of the second
control may be increased by one, and the step may be returned to
Step S110, and in a case where the number of second controls
determined in Step S170 is "2", the set temperature Ts may be
increased by the first reference number, a count of the second
control may be decreased by one, and the step may be returned to
Step S110.
[0039] Another inclination angle may be formed more vertically in
an up-down direction than the one inclination angle.
[0040] Another inclination angle may be formed more vertically in
the up-down direction than the one inclination angle, and the other
inclination angle may be formed between the one inclination angle
and another inclination angle.
[0041] Each vane module may include a first vane configured to be
disposed in the discharge port, a second vane configured to be
disposed in the discharge port, a vane motor configured to be
assembled to the case and supply a driving force to the first vane
and the second vane, a drive link configured to be assembled to be
rotatable relative to the case, to be coupled to the vane motor,
and transmit the driving force of the vane motor to the first vane
and the second vane, a first vane line configured to be assembled
to be rotatable relative to the case and the first vane, and a
second vane link configured to be assembled to be rotatable
relative to the drive link and the second vane.
[0042] When the one inclination angle is provided, a rear end of
the first vane is located higher than a front end of the second
vane.
[0043] In the one inclination angle, the first vane may form an
inclination from 16.degree. to 29.degree. and the second vane may
form an inclination of 57.degree. to 67.degree., and in the another
inclination angle, the first vane may form an inclination from
35.degree. to 44.degree. and the second vane may form an
inclination of 70.degree. to 72.degree..
[0044] In another aspect, there is provided a control method of a
ceiling type indoor unit including a case which is installed to be
suspended to a ceiling of a room, includes a suction port formed on
a bottom surface, and includes a first discharge port disposed on
one side and a second discharge pair disposed on the other side
based on the suction port, in which the control method includes: a
step S10 of turning on a cooling mode; a first control of, in a
case where a current temperature Tp in the room is equal to or
higher than a reference set temperature Ts0 after Step S10,
operating the first discharge pair at one inclination angle and
operating the second discharge pair at another inclination angle; a
step S100 of increasing the reference set temperature Ts0 by a
first reference value to set a set temperature Ts after the first
control; and a second control of, after Step S100, operating the
first discharged air at another inclination angle and operating the
second discharge pair at the one inclination angle.
BRIEF DESCRIPTION OF THE DRAWINGS
[0045] FIG. 1 is a perspective view showing an air conditioner
indoor unit according to an embodiment of the present
disclosure.
[0046] FIG. 2 is a cross-sectional view of FIG. 1.
[0047] FIG. 3 is an exploded perspective view showing a front panel
of FIG. 1.
[0048] FIG. 4 is a perspective view showing a front panel upper
portion of FIG. 1.
[0049] FIG. 5 is a perspective view of a vane module shown in FIG.
3.
[0050] FIG. 6 is a perspective view when viewed in a different
direction of FIG. 5.
[0051] FIG. 7 is a perspective view of the vane module when viewed
from above in FIG. 5.
[0052] FIG. 8 is a front view of the vane module shown in FIG.
3.
[0053] FIG. 9 is a rear view of the vane module shown in FIG.
3.
[0054] FIG. 10 is a plan view of the vane module shown in FIG.
3.
[0055] FIG. 11 is a perspective view showing an operation structure
of the vane module shown in FIG. 5.
[0056] FIG. 12 is a front view of a drive link shown in FIG.
11.
[0057] FIG. 13 is a front view of a first vane link shown in FIG.
11.
[0058] FIG. 14 is a front view of a second vane link shown in FIG.
11.
[0059] FIG. 15 is a bottom view of the front panel in a state where
a suction grill is separated from FIG. 1.
[0060] FIG. 16 is a side cross-sectional view of the vane module
shown in FIG. 2.
[0061] FIG. 17 is an exemplary view of a discharge step P1
according a first embodiment of the present disclosure.
[0062] FIG. 18 is an exemplary view of a discharge step P2
according to the first embodiment of the present disclosure.
[0063] FIG. 19 is an exemplary view of a discharge step P3
according to the first embodiment of the present disclosure.
[0064] FIG. 20 is an exemplary view of a discharge step P4
according to the first embodiment of the present disclosure.
[0065] FIG. 21 is an exemplary view of a discharge step P5
according to the first embodiment of the present disclosure.
[0066] FIG. 22 is an exemplary view of a discharge step P6
according to the first embodiment of the present disclosure.
[0067] FIG. 23 is a flowchart showing a control method during
cooling according to the first embodiment of the present
disclosure.
[0068] FIG. 24 is a graph showing a change of an indoor temperature
according to FIG. 23.
[0069] FIG. 25 is a flowchart showing a control method during
cooling according to a second embodiment of the present
disclosure.
[0070] FIG. 26 is a graph showing a change of an indoor temperature
according to FIG. 25.
DESCRIPTION OF EXEMPLARY EMBODIMENTS
[0071] Advantages and features of the present disclosure and
methods of achieving the advantages and features will be apparent
with reference to embodiments described below in detail in
conjunction with the accompanying drawings. However, the present
disclosure is not limited to embodiments disclosed below, but may
be implemented in various forms, only the present embodiments are
provided so that a disclosure of the present disclosure is complete
and a disclosure of a scope of the invention is fully understood by
those skilled in the art to which the present disclosure belongs,
and the present disclosure is only defined by the scope of the
claims. The same reference numerals indicate the same components
through the specification.
[0072] Hereinafter, the present disclosure will be more
specifically described with reference the accompanying
drawings.
[0073] FIG. 1 is a perspective view showing an air conditioner
indoor unit according to an embodiment of the present disclosure.
FIG. 2 is a cross-sectional view of FIG. 1. FIG. 3 is an exploded
perspective view showing a front panel of FIG. 1. FIG. 4 is a
perspective view showing a front panel upper portion of FIG. 1.
FIG. 5 is a perspective view of a vane module shown in FIG. 3. FIG.
6 is a perspective view when viewed in a different direction of
FIG. 5. FIG. 7 is a perspective view of the vane module when viewed
from above in FIG. 5. FIG. 8 is a front view of the vane module
shown in FIG. 3. FIG. 9 is a rear view of the vane module shown in
FIG. 3. FIG. 10 is a plan view of the vane module shown in FIG. 3.
FIG. 11 is a perspective view showing an operation structure of the
vane module shown in FIG. 5. FIG. 12 is a front view of a drive
link shown in FIG. 11. FIG. 13 is a front view of a first vane link
shown in FIG. 11. FIG. 14 is a front view of a second vane link
shown in FIG. 11. FIG. 15 is a bottom view of the front panel in a
state where a suction grill is separated from FIG. 1. FIG. 16 is a
side cross-sectional view of the vane module shown in FIG. 2. FIG.
17 is an exemplary view of a discharge step P1 according a first
embodiment of the present disclosure. FIG. 18 is an exemplary view
of a discharge step P2 according to the first embodiment of the
present disclosure. FIG. 19 is an exemplary view of a discharge
step P3 according to the first embodiment of the present
disclosure. FIG. 20 is an exemplary view of a discharge step P4
according to the first embodiment of the present disclosure. FIG.
21 is an exemplary view of a discharge step P5 according to the
first embodiment of the present disclosure. FIG. 22 is an exemplary
view of a discharge step P6 according to the first embodiment of
the present disclosure. FIG. 23 is a flowchart showing a control
method during cooling according to the first embodiment of the
present disclosure, and FIG. 24 is a graph showing a change of an
indoor temperature according to FIG. 23.
[0074] Configuration of Indoor Unit
[0075] An indoor unit of an air conditioner according to the
present embodiment includes a case 100 in which a suction port 101
and a discharge port 102 are formed, an indoor heat exchanger 130
which is disposed inside the case 100, and an indoor blowing fan
140 which is disposed inside the case 100 and causes air to flow to
the suction port 101 and the discharge port 102.
[0076] Configuration of Case
[0077] In the present embodiment, the case 100 includes a case
housing 110 and a front panel 300. The case housing 100 is
installed to be suspended to a ceiling of a room via a hanger (not
shown), and an opening is formed in a lower side of the case
housing 100. The front panel 300 covers an opening surface of the
case housing 110, is displaced to face a bottom of the room, and is
exposed to the room, and the suction port 101 and the discharge
port 102 are formed in the front panel 300.
[0078] The case 100 may be implemented in various ways depending on
a manufacturing form, and a configuration of the case 100 does not
limit a scope of the present disclosure.
[0079] The suction port 101 is disposed at a center of the front
panel 300, and the discharge port 102 is disposed outside the
suction port 101. The number of suction ports 101 or the number of
discharge ports 102 is independent of the scope of the present
disclosure. In the present embodiment, one suction port 101 is
formed, and a plurality of discharge ports 102 are disposed.
[0080] In the present embodiment, the suction port 101 is formed in
a rectangular shape when viewed from the bottom, and four discharge
ports 102 are spaced apart from each edge of the suction port 101
by a predetermined gap.
[0081] Configuration of Indoor Heat Exchanger
[0082] The indoor heat exchanger 130 is disposed between the
suction port 101 and the discharge ports 102, and the indoor heat
exchanger 130 divides an inside of the case 100 into an inside and
an outside. In the present embodiment, the indoor heat exchanger
130 is disposed vertically.
[0083] The indoor blowing fan 140 is located inside the indoor heat
exchanger 130.
[0084] When the indoor heat exchanger is viewed from a top or a
bottom, an overall shape is formed as "a", and some sections may be
separated.
[0085] The indoor heat exchanger 130 is disposed such that the air
discharged from the indoor blowing fan 140 enters the indoor heat
exchanger 130 vertically.
[0086] A drain pan 132 is installed inside the case 100, and the
indoor heat exchanger 130 is mounted on the drain pan 132. After
condensed water generated by the indoor heat exchanger 130 flows to
the drain pan 132, and the condensed water may be stored therein. A
drain pump (not shown) for discharging the collected condensed
water to the outside is disposed in the drain pan 132.
[0087] The drain pan 132 may have an inclined surface having a
direction to collect and store condensed water flowing down from
the indoor heat exchanger 130 to one side.
[0088] Configuration of Indoor Blowing Fan
[0089] The indoor blowing fan 140 is located inside the case 100
and is disposed above the suction port 101. The indoor blowing fan
140 uses a centrifugal blower which sucks air to the center and
discharges the air in a circumferential direction.
[0090] The indoor blowing fan 140 includes a bell mouse 142, a fan
144, and a fan motor 146.
[0091] The bell mouse 142 is disposed above the suction grill 320
and located below the fan 144. The bell mouse 142 guides the air
passing through the suction grill 320 to the fan 144.
[0092] The fan motor 146 rotates the fan 144. The fan motor 146 is
fixed to the case housing 110. The fan motor 146 is located above
the fan 144. At least a portion of the fan motor 146 is located
higher than the fan 144.
[0093] A motor shaft of the fan motor 146 is disposed downward, and
the fan 144 is coupled with the motor shaft.
[0094] The indoor heat exchanger 130 is located outside an edge of
the fan 144. At least a portion of the fan 144 and at least a
portion of the indoor heat exchanger 130 are disposed on the same
horizontal line. At least a portion of the bell mouse 142 is
inserted into the fan 144. At least a portion of the bell mouse 142
overlaps the fan 144 in a vertical direction.
[0095] Configuration of Channel
[0096] The indoor heat exchanger 130 is disposed inside the case
housing 110 and divides an internal space of the case housing 110
into an inside and an outside.
[0097] An inner space surrounded by the indoor heat exchanger 130
is defined as a suction channel 103, and an outer space of the
indoor heat exchanger 130 is defined as a discharge channel
104.
[0098] The indoor blowing fan 140 is disposed in the suction
channel 103. The discharge channel 104 is formed between an outside
of the indoor heat exchanger 130 and a side wall of the case
housing 110.
[0099] When viewed in a top or a bottom, the suction channel 103 is
an inside surrounded by "o" of the indoor heat exchanger and the
discharge channel 104 is an outside of "a" of the indoor heat
exchanger.
[0100] The suction channel 103 communicates with the suction port
101 and the discharge channel 104 communicates with the discharge
port 103.
[0101] The air flows from a lower side of the suction channel 103
to an upper side thereof, and flows from an upper side of the
discharge channel 104 to a lower side thereof. A flow direction is
converted by 180.degree. with reference to the indoor heat
exchanger 130.
[0102] The suction port 101 and the discharge port 102 are formed
on the same surface as that of the front panel 300.
[0103] The suction port 101 and the discharge port 102 are disposed
in the same direction as each other. In the present embodiment, the
suction port 101 and the discharge port 102 are disposed to face
the bottom of the room.
[0104] In a case where a front panel 300 is curved, the discharge
port 102 may be formed to have a slight side inclination, but the
discharge port 102 connected to the discharge channel 104 is formed
to face the lower side.
[0105] A vane module 200 is disposed to control a direction of air
discharged through the discharge portion 102.
[0106] Configuration of Front Panel
[0107] The front panel 300 is coupled with the case housing 110,
and includes a front body 310 in which the suction port 101 and the
discharge ports 102 are formed, the suction grill 320 in which a
plurality of grill holes 321 are formed and which covers the
suction port 101, a prefilter 330 which is detachably assembled to
the suction grill 320, and the vane module 200 which is provided in
the front body 310 and controls an air flow direction of the
discharge port 102.
[0108] The suction grill 320 is detachably installed in the front
body 310. The suction grill 320 may be elevated in an up-down
direction from the front body 310. The suction grill 320 covers the
entire suction port 101.
[0109] In the present embodiment, the suction grill 320 has the
plurality of grill holes 321 through a lattice form. The grill
holes 321 communicate with the suction port 101.
[0110] The prefilter 330 is disposed above the suction grill 320.
The prefilter 330 filters the air sucked into the case 100. The
prefilter 330 is located above the grill holes 321 and filter the
air passing through the suction grill 320.
[0111] The discharge port 102 is formed in a form of an elongated
slit along an edge of the suction port 101. The vane module 200 is
located on the discharge port 102 and is coupled with the front
body 310.
[0112] In the present embodiment, the vane module 200 may be
separated from a lower side of the front body 310. That is, the
vane module 200 may be disposed regardless of a coupling structure
of the front body 310 and may be separated independently from the
front body 310. In the structure of the vane module 200 will be
described in detail later.
[0113] Configuration of Front Body
[0114] The front body 310 is coupled with a lower side of the case
housing 110 and is disposed toward the inside of the room. The
front body 310 is installed on a ceiling of the room and is exposed
to the room.
[0115] The front body 310 is coupled with the case housing 110 and
the case housing 110 supports a load of the front body 310. The
front body 310 supports loads of the suction grill 320 and the
prefilter 330.
[0116] When the front body 310 is viewed from the top, the front
body 310 is formed in a rectangular shape. The shape of the front
body 310 may be formed variously.
[0117] An upper surface of the front body 310 may be formed
horizontally to be in close contact with the ceiling, and an edge
of a lower surface thereof may form a slight curved surface.
[0118] The suction port 101 is disposed at a center of the front
body 310, and the plurality of discharge ports 102 are disposed
outside the edge of the suction port 101.
[0119] When viewed from the top, the suction port 101 may be formed
in a square shape, and the discharge port 102 may be formed in a
rectangular shape. The discharge port 102 may be formed in an
elongated slit shape in which a length is longer than a width.
[0120] The front body 310 includes a front frame 312, a side cover
314, and a corner cover 316.
[0121] The front frame 312 provides a load and a rigidity of the
front panel 300 and is fastened to be fixed to the case housing
110. The suction port 101 and the four discharge ports 102 are
formed in the front frame 312.
[0122] In the present embodiment, the front frame 312 includes a
side frame 311 and corner frame 313.
[0123] The corner frame 313 is disposed at each corner of the front
panel 300. The side frame 311 is coupled with two corner frames
313. The side frame 311 includes an inner side frame 311a and an
outer side frame 311b.
[0124] The inner side frame 311a is disposed between the suction
port 101 and the discharge port 102 and couples two corner frames
313 to each other. The outer side frame 311b is disposed outside
the discharge port 102.
[0125] In the present embodiment, four inner side frames 311a and
four outer side frames 311b are provided.
[0126] The suction port 101 is located inside the four inner side
frames 311a. Each discharge port 102 is formed to be surrounded by
two corner frames 313, the inner side frame 311a, and the outer
side frame 311b.
[0127] Moreover, the side cover 314 and the corner 316 are coupled
with a bottom surface of the front frame 312. The side cover 314
and the corner cover 316 are exposed to a user and the front frame
312 is not visible to the user.
[0128] The side cover 314 is disposed at an edge of the front frame
313 and the corner cover 316 are disposed at a corner of the front
frame 312.
[0129] The side cover 314 is formed of a synthetic resin material
and is fastened to be fixed to the front frame 312. Specifically,
the side cover 314 is coupled with the side frame 311, and the
corner cover 316 is coupled with the corner frame 313.
[0130] In the present embodiment, four side covers 314 and four
corner covers 316 are provided. The side covers 314 and the corner
covers 316 are coupled with the front frame 312 and connected to
each other so as to be one structure. The four side covers 314 and
four corner covers 316 in the front panel 300 form one edge.
[0131] The side cover 314 is disposed below the side frame 311, and
the corner cover 316 is disposed below the corner frame 313.
[0132] The four side covers 314 and four corner covers 316 are
assembled to form a square edge. The four side covers 314 and four
corner covers 316 connected to each other are defined as front
decor 350.
[0133] The front decor 350 forms a decor outer border 351 and an
inner border 352.
[0134] When viewed from a top or a bottom, the decor outer boarder
351 is formed in a quadrangle, and the entire decor inner borderer
352 is also formed in a quadrangle. However, a corner of the decor
inner border forms a predetermined curvature.
[0135] The suction grill 320 and the four vane modules 200 are
disposed inside the decor inner border 352. In addition, the
suction grill 320 and the four vane modules 200 are in contact with
the decor inner border 352.
[0136] In the present embodiment, four side covers 314 are
disposed, and each side cover 314 is coupled with the front frame
312. An outer edge of the side cover 314 forms a portion of the
decor outer board 351, and the inner edge thereof forms a portion
of the decor inner boarder 352.
[0137] Particularly, the inner edge of the side cover 314 forms an
outer boundary of the discharge port 102. The inner edge of the
side cover 314 is defined as a side decor inner border 315.
[0138] In the present embodiment, four corner covers 316 are
disposed and each corner cover 316 is coupled with the front frame
312. An outer edge of the corner cover 316 forms a portion of the
decor outer border 351 and an inner edge thereof forms a portion of
the decor inner border 352.
[0139] The inner edge of the corner cover 316 is defined as a
corner decor inner border 317.
[0140] The corner decor inner border 317 may be disposed in contact
with the suction grill 320. In the present embodiment, an inner
edge of the corner cover 316 is disposed to face the suction grill
320 and is spaced apart by a predetermined gap from the suction
grill 320 to form a gap 317a.
[0141] The side decor inner border 315 is also spaced apart by a
predetermined gap from the vane module 200 to form a gap 315a, and
is disposed to face the outer edge of the vane module 200.
[0142] Accordingly, the decor inner border 352 is spaced apart by a
predetermined gap from the outer edges of the four vane modules 200
and the suction grill 320, and forms a continuous gap.
[0143] A continuous gap formed by the four side decor inner border
gaps 315a and the four corner decor inner border gaps 317a is
defined as a front decor gap 350a.
[0144] The front decor gap 350a is formed at the inner edge of the
front decor 350. Specifically, the front decor gap 350a is formed
to be spaced apart from the outer edges of the vane module 200 and
the suction grill 320 and the inner edge of the front decor
350.
[0145] When the vane module 200 is not operated (when the indoor
unit stops), the front decor gap 350a makes the suction grill 320
and the vane module 200 appear as one structure.
[0146] Configuration of Suction Grill
[0147] The suction grill 320 is located below the front body 310.
The suction grill 320 can be lifted or lowered in a state of being
in close contact with a bottom surface of the front body 310.
[0148] The suction grill 320 includes a grill body 322 and the
plurality of grill holes 321 which are formed to penetrate the
grill body 322 in the vertical direction.
[0149] The suction grill 320 is disposed below the suction port
101, communicates with the suction port 101 via the plurality of
grill holes 321, and includes the grill body 322 formed in a
rectangular shape and a grill corner portion 327 which is formed to
extend in a diagonal direction from the edge of the grill body
322.
[0150] A bottom surface of the grill body 322 and a bottom surface
of a first vane 210 may form a continuous surface. In addition, the
bottom surface of the grill body 322 and a bottom surface of the
corner cover 316 may form a continuous surface.
[0151] A plurality of grills 323 are disposed inside the grill body
322 in a grid shape. The grid-shaped grills 323 form rectangular
grill holes 321. A portion in which the grills 323 and the grill
holes 321 are formed is defined as a suction portion.
[0152] The grill body 322 includes a suction portion which sucks
air and a grill body portion 324 which is disposed to surround the
suction portion. When viewed from a top or a bottom, the entire
shape of the suction portion is rectangular.
[0153] Each corner of the suction portion is disposed to face each
corner of the front panel 300, and more specifically, is disposed
to face the corner cover 316.
[0154] When viewed from a bottom, the grill body 322 is formed in a
rectangular shape.
[0155] An outer edge of the grill body portion 324 is disposed to
face the discharge port 102 and the front decor 350.
[0156] The outer edge of the grill body portion 324 includes a
grill corner border 326 which is disposed to face the corner cover
316 and a grill side border 325 which forms the discharge port 102
and is disposed to face the side cover 314.
[0157] The grill corner border 326 may be formed to be curved with
an inside of the suction grill 320 as a center, and the grill side
border 325 may be formed to be curved with an outside of the
suction grill 320 as a center.
[0158] The grill body portion 324 further includes the grill corner
border 326 and the grill corner portion 327 surrounded by two grill
side border 325. The grill corner portion 327 is formed to protrude
from the grill body portion 324 toward the corner cover 316
side.
[0159] The grill corner portion 327 is disposed at each corner of
the grill body 322. The grill corner portion 327 extends toward
each corner of the front panel 300.
[0160] In the present embodiment, four grill corner portions 327
are disposed. For convenience of description, the four grill corner
portions 327 are defined as a first grill corner portion 327-1, a
second grill corner portion 327-2, a third grill corner portion
327-3, and a fourth grill corner portion 327-4.
[0161] The grill side border 325 is formed to be recessed inward
from the outside.
[0162] The discharge port 102 is formed between the side cover 314
and the suction grill 320. More specifically, one discharge port
102 is formed between the side decor inner border 315 of the side
cover 314 and the grill side border 325 of the grill body 322. The
respective discharge ports 102 are formed between the side decor
inner borders 315 and the grill side borders 325 of the suction
grill 320 disposed in four directions.
[0163] In the present embodiment, a length of the grill corner
border 326 is the same as a length of the corner decor inner border
317. That is, a width of the corner cover 316 is the same as a
width of the grill corner portion 327.
[0164] In addition, an inner width of the side cover 314 is the
same as a width of the grill side border 325.
[0165] The grill side border 325 is described in more detail as
follows.
[0166] The grill side border 325 forms an inner boundary of the
discharge port 102. The side decor inner border 315 and the corner
decor inner border 317 form an outer boundary of the discharge port
102.
[0167] The grill side border 325 includes a long straight line
section 325a which extends in a length direction of the discharge
port 102 and is formed in a straight line, a first curved section
325b which is connected to one side of the long straight line
section 325a and has a curvature center outside the suction grill
320, a second curved section 325c which is connected to the other
side of the long straight line section 325a and has a curvature
center outside the suction grill 320, a first short straight line
section 325d which is connected to the first curved section 325b,
and a second short straight line section 325e which is connected to
the second curved section 325c.
[0168] Configuration of Vane Module
[0169] The vane module 200 is provided in the discharge channel 104
and controls the flow direction of the air discharged through the
discharge port 102.
[0170] The vane module 200 includes a module body 400, the first
vane 210, a second vane 220, a vane motor 230, a drive link 240, a
first vane link 250, and a second vane link 260.
[0171] The first vane 210, the second vane 220, the vane motor 230,
the drive link 240, the first vane link 250, and the second vane
link 260 are all installed in the module body 400. The module body
400 is integrally installed in the front panel 300. That is, all
components of the vane module 200 are modularized, and thus, are
installed in the front panel 300 at once.
[0172] Since the vane module 200 is modularized, it is possible to
shorten an assembly time and to easily replace the vane module 200
when is failed.
[0173] In the present embodiment, a step motor is used as the vane
motor 230.
[0174] Configuration of Module Body
[0175] The module body 400 may be configured in one body. In the
present embodiment, in order to minimize an installation space and
to minimize the manufacturing cost, the module body 400 is
manufactured to be separated into two parts.
[0176] In the present embodiment, the module body 400 includes a
first module body 410 and a second module body 420.
[0177] The first module body 410 and the second module body 420 are
formed symmetrically right and left. In the present embodiment,
common configurations will be described using the first module body
410 as an example.
[0178] The first module body 410 and the second module body 420 are
fastened to the front body 310, respectively. Specifically, the
first module body 410 and the second module body 420 are
respectively installed in the corner frame 313.
[0179] The first module 410 is installed in the corner frame 313
disposed on one side of the discharge port 102 in a horizontal
direction, and the second module body 420 is disposed in the corner
frame 313 on the other side of the discharge port 102 in the
horizontal direction.
[0180] The first module 410 and the second module body 420 are in
close contact with the bottom surfaces of the respective corner
frames 313 in the vertical direction and are fastened by a
fastening member 401.
[0181] Accordingly, the first module body 410 and the second module
body 420 are disposed below the front body 310. When viewed from a
state where the indoor unit is installed, fastening directions of
the first module body 410 and the corner frame 313 are from a lower
side toward an upper side, and fastening directions of the first
module body 410 and the corner frame 313 also are from the lower
side toward the upper side.
[0182] According to this structure, the entire vane module 200 can
be easily separated from the front body 310 in a service
process.
[0183] The vane module 200 includes the first module body 410 which
is disposed on one side of the discharge port 102, is located below
the front body 310, and is detachably assembled to the front body
310 from below, a second module body 420 which is disposed on the
other side of the discharge port 102, is located below the front
body 310, and is detachably assembled to the front body 310 from
below, at least one vane 210 or 220 of which one side and the other
side are respectively coupled with the first module body 410 and
the second module body 420 and are rotated relative to the first
module body 410 and the second module body 420, the vane motor 230
which is installed in at least one of the first module body 410 and
the second module body 420 and provides a driving force to the
vane, a first fastening hole 403-1 which is disposed in the first
module body 410, is disposed downward, and is formed to penetrate
the first module body 410, a fastening member 401-1 which is
fastened to the front body 310 through the first fastening hole
403-1, a second fastening hole 403-2 which is disposed in the
second module body 420, is disposed downward, is formed to
penetrate the second module body 420, and a second fastening hole
401-2 which is fastened to the front body through the second
fastening hole 403-2.
[0184] Particularly, since the first module body 410 and the second
module body 420 are located below the front body 310, only the vane
module 200 may be separated from the front body 310 in a state
where the front body 310 is installed in the case housing 110. This
is commonly for all four vane modules 200.
[0185] In a case where the module body 400 is separated from the
front body 310, the entire vane module 200 is separated below the
front body 310.
[0186] The first module body 410 includes a module body portion 402
which is coupled with the front body 310, and a link installation
portion 404 which protrudes upward from the module body portion
402.
[0187] The module body portion 402 is fastened to the front body
310 by a fastening member 401 (not shown). Unlike the present
embodiment, the module body portion 402 may be coupled with the
front body 310 through hook coupling, interference fit, or the
like.
[0188] In the present embodiment, in order to minimize a vibration
or noise generated by the first vane 210, the second vane 220, the
vane motor 230, the drive link 240, the first vane link 250, the
second vane link 260, or the like, the module body portion 402 is
securely fastened to the front body 310.
[0189] The fastening member 401 for fixing the module body portion
402 is fastened in a direction from the lower side toward the upper
side and can be separated from the upper side to the lower
side.
[0190] The module body portion 402 has a fastening hole 403 through
which the fastening member 401 passes.
[0191] For convenience of description, when it is necessary to
distinguish between the fastening hole formed in the first module
body 410 and the fastening hole formed in the second module body
420, the fastening hole disposed in the first module body 410 is
referred to as a first fastening hole 403-1, and the fastening hole
disposed in the second module body 420 is referred to as a second
fastening hole 403-1.
[0192] In addition, when it is necessary to distinguish the
fastening member 401, the fastening member 401 installed in the
first fastening hole 403-1 is defined as a first fastening member
401-1, and the fastening member 401 installed in the second
fastening hole 403-1 is defined as a second fastening member
401-2.
[0193] The first fastening member 401-1 passes through the first
fastening hole and is fastened to the front body 310. The second
fastening member 401-2 passes through the second fastening hole and
is fastened to the front body 310.
[0194] Before the module body 400 is fastened to be fixed, a module
hook 405 is disposed to temporarily fix a position of the module
body 400.
[0195] The module hook 405 is coupled with the front panel (300,
specifically front body 310). Specifically, the module hook 405 and
the front body 310 forms a mutual hook.
[0196] A plurality of module hooks 405 may be disposed in one
module body. In the present embodiment, the module hooks 405 are
disposed at an outer edge and a front edge, respectively. That is,
the module hook 405 is disposed outside the first module body 410
and the second module body 420, and each module hook 405 is
symmetrical in right and left directions.
[0197] The vane module 200 can be temporarily fixed to the frame
body 310 by the module hook 405 of the first module body 410 and
the module hook 405 of the second module body 420.
[0198] In fixing by the module hooks 405, some play may be
generated in the coupling structure. The fastening member 401
securely fixes the temporarily fixed module body 400 to the front
body 310.
[0199] The fastening hole 403 in which the fastening member 401 is
installed may be located between the module hooks 405. The
fastening hole 403 of the first module body 410 and the fastening
hole 403 of the second module body 420 are disposed between the
module hook 405 on one side and the module hook 405 on the other
side.
[0200] In the present embodiment, the module hooks 405 and the
fastening holes 403 are disposed in a line.
[0201] Even when the fastening members 401 are disassembled, it is
possible to maintain a state where the vane module 200 is coupled
with the frame body 310 by the module hooks 405.
[0202] During repair or failure, when it is necessary to separate
the vane module 200, the state where the vane module 200 is coupled
with the front panel 300 is maintained even when the fastening
member 401 is separated. Accordingly, when a worker dissembles the
fastening member 401, the worker does not need to separately
support the vane module 200.
[0203] Since the vane module 200 is firstly fixed by the module
hook 405 and is secondly fixed by the fastening member 401, it is
possible to greatly improve convenience of a work during
service.
[0204] The module body portion 402 is disposed horizontally and the
link installation portion 404 is disposed vertically. In
particular, the link installation portion 404 protrudes upward from
the module body portion 402 when viewed in an installed state.
[0205] The link installation portion 404 of the first module body
410 and the link installation portion 404 of the second module body
420 are disposed to face each other. The first vane 210, the second
vane 220, drive link 240, first vane link 250, and the second vane
link 260 are installed between the link installation portion 404 of
the first module body 410 and the link installation portion 404 of
the second module body 420. The vane motor 230 is disposed outside
the link installation portion 404 of the first module body 410 or
outside the link installation portion 404 of the second module body
420.
[0206] The vane motor 230 may be installed in only one of the first
module body 410 and the second module body 420. In the present
embodiment, the vane motor 230 is installed in each of the first
module body 410 or the second module body 420.
[0207] The first vane 210, the second vane 220, the drive link 240,
the first vane link 250, and the second vane link 260 are coupled
with each other between the first module body 410 and the second
module body 420 such that the vane module 200 is integrated.
[0208] In order to install the vane motor 230, a vane motor
installation portion 406 protruding outward of the link
installation portion 404 is disposed. The vane motor 230 is
fastened to be fixed to the vane motor installation unit 406. The
vane motor installation portion 406 is formed in a boss shape, and
the vane motor 230 is fixed to the vane motor installation portion
406. Due to the vane motor installation unit 406, the link
installation portion 404 and the vane motor 230 are spaced apart
from each other by a predetermined gap.
[0209] The link installation portion 404 includes a drive link
coupling portion 407 to which the drive link 240 is assembled and
which provides a rotation center to the drive link 240, a first
vane link coupling portion 408 to which the first vane link 250 is
assembled and provides a center of rotation to the first vane link
250, and a second vane coupling portion 409 which is coupled with
the second vane 220 and provides a center of rotation to the second
vane 220.
[0210] In the present embodiment, each of the drive link coupling
portion 407, the first vane link coupling portion 408, and the
second vane coupling portion 409 is formed in a hole shape. Unlike
the present embodiment, each of the drive link coupling portion
407, the first vane link coupling portion 408, and the second vane
coupling portion 409 may be formed in the form of a boss and may be
implemented in various forms to provide a rotation shaft.
[0211] Meanwhile, the link installation portion 404 includes a
stopper 270 for limiting a rotation angle of the drive link 240.
The stopper 270 protrudes toward the opposite link installation
portion 404.
[0212] In the present embodiment, the stopper 270 generates an
interference at a specific position when the drive link 240 rotates
and limits the rotation of the drive link 240. The stopper 270 is
located within a radius of rotation of the drive link 240.
[0213] In the present embodiment, the stopper 270 is manufactured
integrally with the link installation portion 404. In the present
embodiment, the stopper 270 provides an installation position of
the drive link 240, maintains a contact state when the drive link
240 is rotated, and suppresses the vibration or play of the drive
link 240.
[0214] In the present embodiment, the stopper 270 is formed in an
arc shape.
[0215] Configuration of Drive Link
[0216] The drive link 240 is directly connected to the vane motor
230. A motor shaft (not shown) of the vane motor 230 is directly
coupled with the drive link 240, and an amount of rotation of the
drive link 240 is determined according to a rotation angle of the
rotation shaft of the vane motor 230.
[0217] The drive link 240 is assembled to the vane motor 230
through the link installation portion 404. In the present
embodiment, the drive link 240 passes through the drive link
coupling portion 407.
[0218] The drive link 240 includes a drive link body 245, a first
drive link shaft 241 which is disposed in the drive link body 245
and is rotatably coupled with the first vane 210, a core link shaft
243 which is disposed in the drive link body 245 and is rotatably
coupled with the link installation portion 404 (specifically, drive
link coupling portion 407), and a second drive link shaft 242 which
is disposed in the drive link body 245 and is rotatably coupled
with the second vane link 2660.
[0219] The drive link body 245 includes a first drive link body
246, a second drive link body 247, and a core body 248.
[0220] The core link shaft 243 is disposed in the core body 248,
the first drive link shaft 241 is disposed in the first drive link
body 246, and the core link shaft 243 is disposed in the second
drive link body 247.
[0221] The core body 248 is connected to the first drive link body
246 and the second drive link body 247. A shape of each of the
first drive link body 246 and the second drive link body 247 is
particularly limited. However, in the present embodiment, each of
the first drive link body 246 and the second drive link body 247 is
approximately formed in a straight line shape.
[0222] The first drive link body 246 is formed to be longer than
the second drive link body 247.
[0223] The core link shaft 243 is rotatably assembled to the link
installation portion 404. The core link shaft 243 is assembled to
the drive link coupling portion 407 formed in the link installation
portion 404. The core link shaft 243 can rotate relative to the
drive link coupling portion 407 in a state of being coupling to the
drive link coupling portion 407.
[0224] The first drive link shaft 241 is rotatably assembled to the
first vane 210. The second drive link shaft 242 is rotatably
assembled to the second vane link 260.
[0225] The first drive link shaft 241 and the second drive link
shaft 242 protrude in the same direction as each other. The core
link shaft 243 protrudes in a direction opposite to that of each of
the first drive link shaft 241 and the second drive link shaft
242.
[0226] A predetermined angle is formed between the first drive link
body 246 and the second drive link body 247. An imaginary straight
line connecting the first drive link shaft 241 and the core link
shaft 243 to each other and an imaginary straight line connecting
the core link shaft 243 and the second drive link shaft 242 form a
predetermined angle E therebetween. The angle E is more than
0.degree. and less than 180.degree..
[0227] The first drive link shaft 241 provides a structure in which
the drive link body 245 and the first vane 210 can rotate relative
to each other. In the present embodiment, the first drive link
shaft 241 is integrally formed with the drive link body 245. Unlike
the present embodiment, the first drive link shaft 241 may
integrally formed with the first vane 210 or a joint rib 214.
[0228] The core link shaft 243 provides a structure in which the
drive link body 245 and the module body (specifically, link
installation portion 404) can rotate relative to each other. In the
present embodiment, the core link shaft 243 is integrally formed
with the drive link body 245.
[0229] The second drive link shaft 242 provides a structure in
which the second vane link 260 and the drive link 240 can rotate
relative to each other. In the present embodiment, the second drive
link shaft 242 is integrally formed with the drive link body 245.
Unlike the present embodiment, the second drive link shaft 242 may
be integrally manufactured with the second vane link 260.
[0230] In the present embodiment, the second drive link shaft 242
is disposed in the second drive link body 247. The second drive
link shaft 242 is disposed on a side opposite to the first drive
link shaft 241 based on the core link shaft 243.
[0231] An imaginary straight line connecting the first drive link
shaft 241 and the core link shaft 243 to each other and an
imaginary straight line connecting the core link shaft 243 and the
second drive link shaft 242 to each other form a predetermined
angle E therebetween. The angle E is more than 0.degree. and less
than 180.degree..
[0232] Configuration of First Vane Link
[0233] In the present embodiment, the first vane link 250 is formed
of a rigid material and is formed in a straight line shape. Unlike
the present embodiment, the first vane link 250 may be formed in a
curved line.
[0234] The first vane link 250 includes a first vane link body 255,
a 1-1st vane link shaft 251 which is disposed in the first vane
link body 255, is assembled to the first vane 210, and rotates
relative to the first vane 210, and a 1-2nd vane link shaft 252
which is disposed in the first vane link body 255, is assembled to
the module body (400, specifically, link installation portion 404),
and rotates relative to the module body 400.
[0235] The 1-1st vane link shaft 251 protrudes to the first vane
210 side. The 1-1st vane link shaft 251 is assembled to the first
vane 210 and can rotate relative to the first vane 210.
[0236] The 1-2nd vane link shaft 252 is assembled to the link
installation portion 404 of the module body 400. Specifically, the
1-2nd vane link shaft 252 is assembled to the first vane link
coupling portion 408 and can rotate relative to the first vane link
coupling portion 408.
[0237] Configuration of Second Vane Link
[0238] In the present embodiment, the second vane link 260 is
formed of a rigid material and is formed to extend in a straight
line shape. Unlike the present embodiment, the first vane link 250
may be formed in a curved line.
[0239] The second vane link 260 includes a second vane link body
265, a 2-1st vane link shaft 261 which is disposed in the second
vane link body 265, is assembled to the second vane 220, and
rotates relative to the second vane 220, and a 2-2nd vane link
shaft portion 262 which is disposed in the second vane link body
265, is assembled to the drive link (240, specifically, second
drive link shaft 242), and rotates relative to the drive link
240.
[0240] In the present embodiment, the 2-2nd vane link shaft portion
262 is formed in a hole shape penetrating the second vane link body
265. Since the 2-2nd vane link shaft portion 262 and the second
drive link shaft 242 have a relative structure, if one thereof is
formed in the form of a shaft, the other is formed in the form of a
hole providing a center of rotation. Accordingly, unlike the
present embodiment, the 2-2nd vane link shaft portion may be formed
in the form of a shaft, and the second drive link shaft may be
formed in the form of a hole.
[0241] This configuration can be replaced in all configurations
which are coupled with the drive link, the first vane link, and the
second vane link relatively, and a modification example thereof
will not be described in detail.
[0242] Configuration of Vane
[0243] For the sake of description, a direction in which the air is
discharged is defined as a front side, and a direction opposite to
the front side is defined as a rear side. In addition, a ceiling
side is defined as an upper side, and a bottom is defined as a
lower side.
[0244] In the present embodiment, the first vane 210 and the second
vane 220 are disposed to control the flow direction of the air
discharged from the discharge port 102. A relative disposition and
a relative angle of the first vane 210 and the second vane 220 are
changed according to each step of the vane motor 230. In the
present embodiment, the first vane 210 and the second vane 220 are
paired according to each step of the vane motor 230 and provide six
discharge steps P1, P2, P3, P4, P5, and P6.
[0245] The discharge steps P1, P2, P3, P4, P5, and P6 are defined
as fixed states in which the first vane 210 and second vane 220 are
not moved. As a concept opposite to the discharge steps, in the
present embodiment, a moving step may be provided. The moving step
is defined as an airflow provided by the six discharge steps P1,
P2, P3, P4, P5, P6 being combined with each other and the first
vane 210 and the second vane 220 being operated.
[0246] Configuration of First Vane
[0247] The first vane 210 is disposed between the link installation
portion 404 of the first module body 410 and the link installation
portion 404 of the second module body 404.
[0248] When the indoor unit is not operated, the first vane 210
covers most of the discharge port 210. Unlike the present
embodiment, the first vane 210 may be manufactured to the entire
discharge portion 210.
[0249] The first vane 210 is coupled with the drive link 240 and
the first vane link 250.
[0250] The drive link 240 and the first vane link 250 are
respectively disposed on one side and the other side of the first
vane 210.
[0251] The first vane 210 rotates relative to the drive link 240
and the first vane link 250.
[0252] When it is necessary to distinguish positions of the drive
link 240 and the first vane link 250, the drive link 240 coupled
with the first module body 410 is referred to as a first drive
link, and the first vane link 250 coupled with the first module
body 410 is referred to as a 1-1st vane link. The drive link 240
coupled with the second module body 420 is referred to as a second
drive link, and the first vane link 250 coupled with the second
module body 420 is referred to as a 1-2nd vane link.
[0253] The first vane 210 includes a first vane body 212 which is
formed to extend in a length direction of the discharge port 102,
and a joint rib which protrudes upward from the first vane body 212
and with which the drive link 240 and the first vane link 250 are
coupled.
[0254] The first vane body 212 is formed of a smooth curved
surface.
[0255] The first vane body 212 controls the direction of the air
discharged along the discharge channel 104. The discharged air may
hit an upper side or a lower side of the first vane body 212 and
thus, the flow direction of the air may be guided.
[0256] The flow direction of the discharged air and the length
direction of the first vane body 212 are orthogonal to each other
or intersect each other.
[0257] The joint rib 214 is an installation structure for coupling
the drive link 240 and the first vane link 250. The joint ribs 214
are disposed on one side and the other side of the first vane 210,
respectively.
[0258] The joint rib 214 is formed to protrude upward from an upper
surface of the first vane body 212. The joint rib 214 is formed
along the flow direction of the discharged air and minimizes a
resistance to the discharged air. Accordingly, the joint ribs 214
are orthogonal or intersect with respect to the length direction of
the first vane body 212.
[0259] In the joint rib 214, a side (front side) to which the air
is discharged is low and a side (rear side) which air enters is
high. In the present embodiment, in the joint rib 214, a side with
which the drive link 240 is coupled is low, and a side with which
the first vane link 250 is coupled is high.
[0260] The joint rib 214 includes a second joint portion 217 which
is rotatably coupled with the drive link 240 and a first joint
portion 216 which is rotatably coupled with the first vane link
250.
[0261] The joint rib 214 may be manufactured integrally with the
first vane body 212.
[0262] In the present embodiment, each of the first joint portion
216 and the second joint portion 217 are formed in the form of a
hole and penetrates the joint rib 214.
[0263] Each of the first joint portion 216 and the second joint
portion 217 can be coupled via a shaft or a hinge, and can be
modified in various forms.
[0264] The second joint portion 217 is located higher than the
first joint portion 216 when viewed from the front side.
[0265] The second joint portion 217 is located behind the first
joint portion 216. The first drive link shaft 241 is assembled to
the second joint portion 217. The second joint portion 217 and the
first drive link shaft 241 are assembled to be rotatable relative
to each other. In the present embodiment, the first drive link
shaft 241 penetrates the second joint portion 217 and is
assembled.
[0266] The 1-1st vane link shaft 251 is assembled to the first
joint portion 216.
[0267] The first joint portion 216 and the 1-1st vane link shaft
251 are assembled to be rotatable relative to each other. In the
present embodiment, the 1-1st vane link shaft 251 penetrates the
first joint portion 216 and are assembled to each other
[0268] When viewed from the top, the drive link 250 and first vane
link 250 are disposed between the joint rib 214 and the link
installation portion 404.
[0269] In the present embodiment, a gap between the first joint
portion 216 and the second joint portion 217 is narrower than a gap
between the core link shaft 243 and the 1-2nd vane link shafts
252.
[0270] Configuration of Second Vane
[0271] The second vane 220 includes a second vane body 222 which is
formed to extend in the length direction of the discharge port 102,
a joint rib 224 which protrudes upward from the second vane body
222 and is coupled with be rotatable relative to the second vane
link 260, and a second vane shaft 221 which is formed in the second
vane body 222 and is coupled rotatably to the link installation
portion 404.
[0272] The joint rib 224 can be coupled via a shaft or a hinge, and
can be modified in various forms. A hole which is formed in the
second joint rib 224 and is coupled so as to be rotatable relative
to the second vane link 260 is defined as a third joint portion
226.
[0273] In the present embodiment, the third joint part 226 is
formed in the form of a hole and penetrates the joint rib 224. The
third joint part 226 can be coupled via a shaft or a hinge, and can
be modified in various forms.
[0274] When it is necessary to distinguish the joint rib 214 of the
first vane and the joint rib 224 of the second vane, the joint of
the first vane is defined as a first joint rib 214, and the joint
of the second vane is defined as a second joint rib 224.
[0275] The second vane 220 may be relatively rotated about the
second joint rib 224 and may be relatively rotated about the second
vane shaft 221. That is, the second vane 220 may be rotated
relative to each of the second joint rib 224 and the second vane
shaft 221.
[0276] When viewed from the top, the second joint rib 224 is
located in front of the second vane axis 221. The second joint rib
224 moves in a constant trajectory about the second vane shaft
221.
[0277] The second vane body 222 may be formed of a smooth curved
surface.
[0278] The second vane body 222 controls the direction of the air
discharged along the discharge channel 104. The discharged air hits
an upper surface or a lower surface of the second vane body 222,
and the flow direction of the air is guided.
[0279] The flow direction of the discharged air and a length
direction of the second vane body 222 are orthogonal to each other
or intersect each other.
[0280] When viewed from the top, at least a portion of the second
vane body 22 may be located between the first joint portions 212 of
the first vane 210.
[0281] Accordingly, when the second vane 220 is located above the
first vane 210, an interference therebetween is prevented. A front
end of the second vane body 222 is located between the first joint
portions 214. That is, a front length of the second vane body 222
is smaller than a length between the first joint portions 214.
[0282] The second joint rib 224 is an installation structure for
assembling the second vane link 260. The second joint rib 224 is
disposed in each of one side and the other side of the second vane
body 222.
[0283] The second joint rib 224 is coupled with be rotatable
relative to the second vane link 260, and in the present
embodiment, the third joint portion 226 and the second vane link
260 are coupled by a shaft to be rotatable relative to each
other.
[0284] The second joint rib 224 is formed upward from an upper
surface of the second vane body 222. Preferably, the second joint
rib 224 is formed along the flow direction of the discharged air.
Accordingly, the second joint rib 224 is disposed to be orthogonal
or intersect with respect to the longitudinal direction of the
second vane body 222.
[0285] The second vane 220 is rotated about the second vane shaft
221. The second vane shaft 221 is formed in each of one side and
the other side of the second vane body 222.
[0286] The second vane shaft 221 on the one side protrudes toward
the link installation portion 404 disposed on one side, and the
second vane shaft 221 on the other side protrudes toward the link
installation portion 404 disposed on the other side.
[0287] The module body 400 includes a second vane coupling portion
411 which is rotatably coupled with the second vane shaft 221. In
the present embodiment, the second vane coupling portion 411 is
formed in the form of a hole penetrating the module body 400.
[0288] The second vane shaft 221 is located behind the second joint
rib 224. The second vane link 260, the drive link 240, and the
first vane link 250 are sequentially disposed in front of the
second vane shaft 221.
[0289] In addition, a drive link coupling portion 407 and a first
vane link coupling portion 408 are sequentially disposed in front
of the second vane coupling portion 411.
[0290] Disposition of Vane Module and Suction Grill
[0291] A couple structure and a separation structure of the vane
module will be described in more detail with reference to FIGS. 1
to 4 and FIG. 15.
[0292] When the suction grill 320 is separated from the state of
FIG. 1, four vane modules 200 are exposed as shown in FIG. 15. The
suction grill 320 is detachably assembled to the front body
310.
[0293] The suction grill 320 may be separated from the front body
310 in various manners.
[0294] The suction grill 320 may be separated in a manner that the
opposite side is separated and rotated based on one edge.
Alternatively, the suction grill 320 may be separated by being
released in a state in which the suction grill 320 is interlocked
with the front body 310. Alternatively, the suction grill 200 may
maintain a state coupled with the front body 310 by a magnetic
force.
[0295] In the present embodiment, the suction grill 320 may be
moved in the up-down direction by an elevator 500 installed in the
front body 310. The elevator 500 is connected to the suction grill
320 through a wire (not shown). The elevator 500 is operated, and
thus, the wire is loosened or wound, and the suction grill 320 can
be moved downward or upward.
[0296] A plurality of elevators 500 are disposed, and each elevator
500 simultaneously moves both sides of the suction grill 320.
[0297] When the suction grill 320 is moved downward, the first
module body 410 and the second module body 420 which are covered
with the suction grill 320 are exposed.
[0298] In a state in which the suction grill 320 is assembled to
the front body 310, at least one of the first vane 210 and the
second vane 220 of the vane module 200 may be exposed.
[0299] When the indoor unit is not operated, only the first vane
210 is exposed to the user. When the indoor unit is operated and
the air is discharged, the second vane 220 may be selectively
exposed to the user.
[0300] In a state where the suction grill 320 assembled to the
front body 310, the first module body 410 and the second module
body 420 of the vane module 200 are covered with the suction grill
320.
[0301] Since the fastening hole 403 is disposed in each of the
first module body 410 and the second module body 420, the fastening
hole 403 is covered with the suction grill 320 and are hidden from
the user.
[0302] Moreover, since the first module body 410 and the second
module body 420 are positioned above the grill corner portion 327
constituting the suction grill 320, the grill corner portion 327
prevents the first module body 410 and second module body 420 from
being exposed to the outside.
[0303] The grill corner portion 327 also prevents the fastening
holes 403 formed in the first module body 410 and the second module
body 420 from being exposed. Since the grill corner portion 327 is
located below the fastening hole 403, the fastening hole 403 is
hidden by the grill corner portion 327.
[0304] In more detail, the suction grill 320 includes the grill
body 322 which is disposed below the suction port 101, communicates
with the suction port 101 via the plurality of grill holes 321, and
is formed in a rectangular shape, and a first grill corner portion
327-1, a second grill corner portion 327-2, a third grill corner
portion 327-3, and a fourth grill corner portion 327-4 which are
formed to extend in a diagonal direction from the respective
corners of the grill body 322.
[0305] The vane module 200 includes a first vane module 201 which
is disposed outside each edge of the suction grill 320 and is
disposed between the first grill corner portion 327-1 and the
second grill corner portion 327-2, a second vane module 202 which
is disposed outside each edge of the suction grill 320 and is
disposed between the second grill corner portion 327-2 and the
third grill corner portion 327-3, a third vane module 203 which is
located outside each edge of the suction grill 320 and is disposed
between the third grill corner portion 327-3 and the fourth grill
corner portion 327-4, and a fourth vane module 204 which is
disposed outside each edge of the suction grill 320 and is disposed
between the fourth grill corner portion 327-4 and the first grill
corner portion 327-1.
[0306] The first module body 410 and the second module body 420
disposed between the first vane module 201 and the second vane
module 202 are located above the first grill corner portion 327-1
and are hidden by the first grill corner portion 327-1.
Specifically, the second module body of the first vane module and
the first module body of the second vane module are disposed above
the first grill corner portion.
[0307] The first module body and the second module body disposed
between the second vane module 202 and the third vane module 203
are located above the second grill corner portion 327-2 and are
hidden by the second grill corner portion 327-2. Specifically, the
second module body of the second vane module and the first module
body of the third vane module are disposed above the second grill
corner portion.
[0308] The first module body and the second module body disposed
between the third vane module 203 and the fourth vane module 204
are located above the third grill corner portion 327-3 and are
hidden by the third grill corner portion 327-3. Specifically, the
second module body of the third vane module and the first module
body of the fourth vane module are disposed above the third grill
corner portion.
[0309] The first module body and the second module body disposed
between the fourth vane module 204 and the first vane module 201
are located above the fourth grill corner portion 327-4 and are
hidden by the fourth grill corner portion 327-4. Specifically, the
second module body of the fourth vane module and the first module
body of the first vane module are disposed above the fourth grill
corner portion.
[0310] Referring to FIG. 15, the vane module 200 disposed at 12
o'clock is defined as the first vane module 201, the vane module
200 disposed at 3 o'clock is defined as the second vane module 202,
the vane module 200 disposed at 6 o'clock is defined as the third
vane module 203, and the vane module 200 disposed at 9 o'clock is
defined as the fourth vane module 204.
[0311] The first vane module 201, the second vane module 202, the
third vane module 203, and the fourth vane module 204 are disposed
with a gap of 90.degree. from a center C of the front panel
300.
[0312] The first vane module 201 and the third vane module 203 are
disposed in parallel to each other, and the second vane module 202
and the fourth vane module 204 are disposed in parallel to each
other.
[0313] Four side covers 314 are disposed in the front body 310. For
convenience of description, the side cover 314 disposed outside the
first vane module 201 is defined as a first side cover 314-1, the
side cover 314 disposed outside the second vane module 202 is
defined as a second side cover 314-2, the side cover 314 disposed
outside the third vane module 203 is defined as the third side
cover 314-3, and the side cover 314 disposed outside the fourth
vane module 204 is defined as a fourth side cover 314-4.
[0314] Each side cover 314 is assembled to the edge of the front
frame 312, is located below the front frame 312, is exposed to the
outside, and is disposed outside each vane module 202.
[0315] The corner cover 316 disposed between the first vane module
201 and the second vane module 202 is defined as a first corner
cover 316-1. The corner cover 316 disposed between the second vane
module 202 and the third vane module 203 is defined as a second
corner cover 316-2. The corner cover 316 disposed between the third
vane module 203 and the fourth vane module 204 is defined as a
third corner cover 316-3. The corner cover 316 disposed between the
fourth vane module 204 and the first vane module 201 is defined as
a fourth corner cover 316-4.
[0316] The first corner cover 316-1 is assembled at the corner of
the front frame 312, is located below the front frame 312, is
located between the first side cover 314-1 and the second side
cover. 314-2, and is exposed to the outside.
[0317] The second corner cover 316-2 is assembled at the corner of
the front frame 312, is located below the front frame 312, is
disposed between the second side cover 314-2 and the third side
cover, and is exposed to the outside.
[0318] The third corner cover 316-3 is assembled at the corner of
the front frame 312, is located below the front frame 312, is
located between the third side cover 314-1 and the fourth side
cover 314-4, and is exposed to the outside.
[0319] The fourth corner cover 316-4 is assembled at the corner of
the front frame 312, is located below the front frame 312, is
located between the fourth side cover 314-1 and the first side
cover 314-1, and is exposed to the outside.
[0320] The first corner cover 316-1 and the third corner cover
316-3 are disposed in the diagonal direction based on the center C
of the front panel 300 and are disposed to face each other. The
second corner cover 316-2 and the fourth corner cover 316-4 are
disposed in the diagonal direction based on the center C of the
front panel 300 and are disposed to face each other.
[0321] Imaginary diagonal lines passing through the center of the
front panel 300 are defined as P1 and P2. P1 is the imaginary line
connecting the first corner cover 316-1 and the third corner cover
316-3 to each other, and P2 is the imaginary line connecting the
second corner cover 316-2 and the fourth corner cover 316-4 to each
other.
[0322] The first grill corner portion 327-1, the second grill
corner portion 327-2, the third grill corner portion 327-3, and the
fourth grill corner portion 327-4 which are formed to extend toward
the corners are disposed in the suction grill 320.
[0323] The first vane module 201 is disposed outside each edge of
the suction grill 320 based on the grill corner portions and is
disposed between the first grill corner portion 327-1 and the
second grill corner portion 327-2.
[0324] The second vane module 202 is disposed outside each edge of
the suction grill and is disposed between the second grill corner
portion 327-2 and the third grill corner portion 327-3.
[0325] The third vane module 203 is disposed outside each edge of
the suction grill and is disposed between the third grill corner
portion 327-3 and the fourth grill coner portion 327-4.
[0326] The fourth vane module 204 is disposed outside each edge of
the suction grill and is disposed between the fourth grill corner
portion 327-4 and the first grill corner portion 327-1.
[0327] The first grill corner portion 327-1 extends toward the
first corner cover 316-1 and forms a surface which is continuous
with an outer surface of the first corner cover 316-1.
[0328] The grill corner border 326 of the first grill corner
portion 327-1 is opposed to the corner decor Inner border 317 of
the first corner cover 316-1 and forms a corner decor inner border
gap 317a.
[0329] The grill corner border 326 of the remaining grill corner
portion 327 and the corner decor inner border 317 of the corner
cover 316 face each other and form the corner decor inner border
gaps 317a, respectively.
[0330] The first module body 410 and the second module body 420 are
located inside the corner cover 316 (specifically, the center C
side of the front panel). In particular, the first module body 410
and the second module body 420 are disposed to face each other
based on the imaginary diagonal lines P1 and P2.
[0331] Specifically, the first module body 410 of the first vane
module 201 and the second module body 420 of the fourth vane module
204 are disposed to face each other based on an imaginary diagonal
line P2.
[0332] Moreover, the first module body 410 of the second vane
module 202 and the second module body 420 of the first vane module
201 are disposed to face each other based on the imaginary diagonal
line P1.
[0333] In addition, the first module body 410 of the third vane
module 201 and the second module body 420 of the second vane module
202 are disposed to face each other based on an imaginary diagonal
line P2.
[0334] Moreover, the first module body 410 of the fourth vane
module 204 and the second module body 420 of the third vane module
203 are disposed to face each other based on an imaginary diagonal
line P1.
[0335] Meanwhile, the suction grill 320 is located below the first
module bodies 410 and the second module bodies 420, and covers the
first module bodies 410 and the second module bodies 420 such that
the first module bodies 410 and the second module bodies 420 are
not exposed. That is, in a case where the suction grill 320 is in
close contact with the front body 310, the first module bodies 410
and the second module bodies 420 are covered by the suction grill
320 so that the first module bodies 410 and the second module
bodies 420 are not exposed to the user.
[0336] Since the first module bodies 410 and second module bodies
420 are hidden, there is an advantage that the first module bodies
410 and second module bodies 420 also hide the fastening holes 403
formed in the suction grill 320 such that the fastening holes 403
are not exposed to the user.
[0337] The four grill corner portions 327 disposed to face the
respective corner covers 316 are formed in the suction grill 320.
Each grill corner portion 327 is disposed so as to face each corner
cover 316.
[0338] The grill corner portion 327 disposed to face the first
corner cover 316-1 is defined as the first grill corner portion
327-1, the grill corner portion 327 disposed to face the second
corner cover 316-2 is defined as the second grill corner portion
(327-2), the grill corner portion 327 disposed to face the third
corner cover 316-3 is defined as the third grill corner portion
327-3, and the grill corner portion 327 disposed to face the fourth
corner cover 316-4 is defined as the fourth grill corner portion
327-4.
[0339] When viewed from the bottom, the plurality of module bodies
400 are located above the grill corner portion 327 and are hidden
by the grill corner portion 327.
[0340] In particular, the grill side border 325 forming the edge of
the grill corner portion 327 is disposed to face the corner decor
inner border 317 forming an inner edge of the corner cover 316, and
curved shapes thereof correspond to each other.
[0341] Similarly, the grill corner border 326 forming the edge of
the grill corner portion 327 is disposed to face an inner edge of
the first vane 210, and curved shapes thereof correspond to each
other.
[0342] Meanwhile, in the present embodiment, in order to maintain a
state where the suction grill 320 is in close contact with the
front body 310, a permanent magnet 318 and a magnetic force fixing
unit 328 are disposed.
[0343] One of the permanent magnet 318 or the magnetic force fixing
unit 328 may be disposed in the front body 310, and the other of
the magnetic force fixing unit 328 or the permanent magnet 318 may
be disposed on an upper surface of each grill corner portion
327.
[0344] The permanent magnet 318 and the magnetic force fixing unit
328 are located above each grill corner portion 327 and are hidden
by each grill corner portion 327. Since the permanent magnet 318
and the magnetic force fixing unit 328 are located outside each
corner of the suction grill 320, the separation between the suction
grill 320 and the front body 310 can be minimized.
[0345] When the suction grill 320 and the front body 310 are spaced
apart from each other, there is a problem that a pressure inside
the suction channel 103 decreases.
[0346] In the present embodiment, the permanent magnet 318 is
disposed in the front body 310. Specifically, the permanent magnet
is disposed in the corner frame 313.
[0347] The magnetic force fixing unit 328 is formed of a metal
material which interacts with the permanent magnet 318 and forms an
attractive force. The magnetic force fixing unit 328 is disposed on
the upper surface of the suction grill 320. Specifically, the
magnetic force fixing unit 328 is disposed on the upper surface of
the grill corner portion 327.
[0348] In a case where the suction grill 320 is moved upward and
close to the permanent magnet 318, the permanent magnet 318 pulls
the magnetic force fixing unit 328 and fixes the suction grill 320.
The magnetic force of the permanent magnet 318 is formed smaller
than own weight of the suction grill 320. Accordingly, in a case
where the suction grill 320 is not pulled by the elevator 500, the
coupling between the permanent magnet 318 and the magnetic force
fixing unit 328 is released.
[0349] When viewed from the top or bottom, the permanent magnet 318
is disposed on the imaginary diagonal lines P1 and P2 lines. The
permanent magnet 318 is located inside the corner cover 316.
[0350] When viewed from the top or bottom, one of the four
permanent magnets 318 is disposed between the first module body 410
of the first vane module 201 and the second module body 420 of the
fourth vane module 204. Each of the remaining three permanent
magnets is also disposed between the first module body 410 and the
second module body 420 of each vane module.
[0351] The permanent magnet 318 and the magnetic force fixing unit
328 are located above each grill corner portion 327 and are hidden
by each grill corner portion 327.
[0352] Discharge Step According to Operation of Vane Motor
[0353] In the present embodiment, when the indoor unit is not
operated (when indoor blower is not operated), as shown in the
drawings, in each vane module 200, the second vane 220 is located
above the first vane 210 and the first vane 210 covers the
discharge port 102. A lower surface of the first vane 210 forms a
surface which is continuous with a lower surface of the suction
grill 320 and a lower surface of the side cover 314.
[0354] When the indoor unit is not operated, since the second vane
220 is located above the first vane 210, the second vane 220 is
hidden when viewed from the outside. The second vane 220 is exposed
to the use only when the indoor unit is operated. Accordingly, when
the indoor unit Is not operated, the second vane 220 is located on
the discharge channel 104, and the first vane 210 covers most of
the discharge port 102.
[0355] In the present embodiment, the first vane 210 covers most of
the discharge port 102. However, the first vane 210 may be formed
to cover the entire discharge port 210 according to a design.
[0356] If the indoor blower is operated in a state where the second
vane 220 is stored, the vane motor 230 is operated, and the first
vane 210 and the second vane 220 can be changed to any one of the
six discharge steps P1, P2, P3, P4, P5, and P6.
[0357] A step when the indoor unit is stopped and the vane module
200 is not operated is defined as a stop step P0.
[0358] Stop Step P0
[0359] In a state of the stop step P0, the vane module 200 is not
operated. When the indoor unit is not operated, the vane module 200
maintains the state of the stop step P0.
[0360] In the state of the stop step P0, in the vane module 200,
the vane motor 230 rotates the drive link 240 at maximum in a first
direction (the clockwise direction in the drawings of the present
embodiment).
[0361] In this case, the second drive link body 247 constituting
the drive link 240 is supported by one side end 271 of the stopper
270, and thus, a further rotation thereof in the first direction is
restricted.
[0362] In order to prevent an excessive rotation of the drive link
240, in the stop step P0, the second drive link body 247 and the
other side end 270b of the stopper 270 interfere with each other.
The second drive link body 247 is supported by the stopper 270, and
thus, a further rotation thereof is restricted.
[0363] The drive link 240 rotates in the first direction about the
core link shaft 243, and the first vane link 250 rotates in the
first direction about the 1-2nd vane link shaft 252.
[0364] The first vane 210 rotates in a state of being constrained
by the drive link 240 and the first vane link 250, and is located
in the discharge port 102. The lower surface of the first vane 210
forms a surface which is continuous with the suction grill 320 and
the side cover 314.
[0365] In the state of the stop step P0, the second vane 220 is
located above the first vane 210. In a plan view, the second vane
220 is located between the first joints 214 and is located above
the first vane body 212.
[0366] Moreover, in the state of the stop step P0, the drive link
240, the first vane link 250, and the second vane link 260 are
located above the first vane 210. The drive link 240, the first
vane link 250, and the second vane link 260 are covered with the
first vane 210, and thus, cannot be viewed from the outside. That
is, in the state of the stop step P0, the first vane 210 covers the
discharge port 102, and thus, components constituting the vane
module 200 is prevented from being exposed to the outside.
[0367] In the state of the stop step P0, the drive link 240 rotates
at maximum in the clockwise direction, and the second vane link 260
is lifted at maximum.
[0368] When the indoor unit is not operated, since the second vane
220 is located above the first vane 210, the second vane 220 is
hidden from the outside. The second vane 220 is exposed to the user
only when the indoor unit is operated.
[0369] In the stop step P0, a positional relationship of axes
forming the centers of rotation of the respective links is as
follows.
[0370] First, the first joint portion 216 and the second joint
portion 217 of the first vane 210 are disposed approximately
horizontally. The second join rib 224 of the second vane 220 is
located above the first joint rib 214.
[0371] When viewed from the side, the second joint rib 224 is
located above the second joint portion 217 and the first joint
portion 216, and is located between the first joint portion 216 and
the second joint portion 217.
[0372] Moreover, since the 2-1st vane link shaft 261 is coupled to
the second joint rib 224, the 2-1st vane link shaft 261 also is
located above the second joint portion 217 and the first joint
portion 216.
[0373] The first joint portion 216 and the second joint portion 217
are located above the first vane body 212 and is located below the
second vane body 222.
[0374] When the indoor unit stops, the second vane 220 is located
above the first vane 210 and the 2-1st vane link shaft 261 is
located above the first drive link shaft 241 and the 1-1st vane
link shaft 251.
[0375] In addition, the 2-1st vane link shaft 261 is located above
the second vane shaft 221, and the 2-2nd vane link shaft portion
262 is located above the 2-1st vane link shaft 261.
[0376] The 2-2nd vane link shaft portion 262 is located above the
2-1st vane link shaft 261 and is located above the core link shaft
243.
[0377] Next, in the stop step P0, relative positions and directions
of the respective links are as follows.
[0378] Meanwhile, the first vane link 250 and the second vane link
260 are disposed in the same direction as each other. Upper ends of
the first vane link 250 and the second vane link 260 are located on
a front side in a discharge direction of the air, and lower ends
thereof are located on a rear side in the discharge direction of
the air.
[0379] Specifically, the 1-2nd vane link shaft 252 of the first
vane link 250 is located on the front side, and the 1-1st vane link
shaft 251 of the first vane link 250 is located on the rear side.
The 1-2nd vane link shaft 252 of the first vane link 250 is located
above the 1-1st vane link shaft 251. The first vane link 250 is
disposed to be inclined toward the rear lower side based on the
1-2nd vane link shaft 252.
[0380] Similarly, the 2-2nd vane link shaft 262 of the second vane
link 260 is located on the front side, and the 2-1st vane link
shaft 261 of the second vane link 260 is located on the rear side.
The 2-2nd vane link shaft 262 of the second vane link 260 is
located above the 2-1st vane link shaft 261. The second vane link
260 is disposed to be inclined toward the rear lower side based on
the 2-2nd vane link shaft 262.
[0381] The first drive link body 246 of the drive link 240 is
disposed in the same direction as those of the first vane link 250
and the second vane link 260, and the second link body 247
intersects disposition directions of the first vane link 250 and
the second vane link 260.
[0382] Discharge Step P1
[0383] In the state of the stop step P0, the drive link 240 rotates
in a second direction (the counterclockwise direction in the
drawings of the present embodiment) opposite to the first direction
to provide the discharge step P1.
[0384] In a state of the discharge step P1, the vane module 200 can
provide horizontal wind.
[0385] In the horizontal wind, the air discharged from the
discharge port 102 may be guided by the first vane 210 and the
second vane 220 to flow in a horizontal direction with the ceiling
or the ground.
[0386] When the discharged air flows in the horizontal wind, a flow
distance of the air can be maximized.
[0387] In the discharge step P1, the horizontal wind is provided,
and the discharged air flows along the ceiling of the room. In
addition, the air flow to a lower side toward a bottom after the
air hits a wall of the room, and the air returns to the indoor unit
side after the air hits the bottom.
[0388] That is, in the discharge step P1, not only the air is
directly provided to the occupant but also indirect wind is
provided to the occupant.
[0389] In the state of the discharge step P1, the upper surfaces of
the first vane 210 and the second vane 220 may form a continuous
surface. In the state of the discharge step P1, the first vane 210
and the second vane 220 are connected to each other as one vane and
guide the discharged air.
[0390] When the vane module 200 provides the discharge step P1
which is one of a plurality of discharge steps, the first vane 210
is located below the discharge port 102 and a front end 222a of the
second vane 220 is located above a rear end 212a of the first vane
210.
[0391] The upper surface of the second vane 220 is located higher
than the upper surface of the first vane 210.
[0392] In the present embodiment, the first vane 210 is disposed on
the front side in the flow direction of the discharged air, and the
second vane 220 is disposed on the rear side in the flow direction
of the discharged air. The front end 222a of the second vane 220
may approach or come into contact with the rear end 212b of the
first vane 210. In the state of the discharge step P1, a gap S1
between the front end 222a of the second vane 220 and the rear end
212b of the first vane 210 may be a minimum.
[0393] The rear end 222b of the second vane is located above the
discharge port 102, the front end 222a of the second vane is
located below the discharge port 102, and the rear end 212b of the
first vane is located lower than the front end 222a of the second
vane.
[0394] In the state of the discharge step P1, the front end 222a of
the second vane 220 is located above the rear end 212b of the first
vane 210.
[0395] The front end 222a and the rear end 212b approach each other
or come into contact with each other, and thus, it is possible to
minimize leakage of the discharged air between the first vane 210
and the second vane 220.
[0396] In the present embodiment, the front end 222a and the rear
end 212b approach each other but are not in contact with each
other.
[0397] Moreover, when the vane module 200 forms the horizontal wind
in the discharge step P1, since the first vane 210 and the second
vane 220 are connected to each other and operated as one vane, an
intensity of the airflow of the horizontal wind can be increased.
That is, since the discharged air is guided in the horizontal
direction along the upper surface of the second vane 220 and the
upper surface of the first vane 210, directivity of the discharged
air can be further enhanced as compared with a case where the
horizontal wind is formed by one vane.
[0398] When the horizontal wind is formed, the second vane 220 is
disposed to be more inclined in the up-down direction than the
first vane 210.
[0399] In the case of the horizontal wind, when viewed from the
side, preferably, the first vane 210 is located below the discharge
port 102, and the second vane 220 is disposed to overlap the
discharge port 102.
[0400] In the state of the discharge step P1, the second vane 220
is rotated in place about the second vane shaft 221. However, since
the first vane 210 is assembled together with the drive link 240
and the first vane link 250, the first vane 210 rotates (swings) in
the discharge direction of the air.
[0401] If the step proceeds from P0 to P1, the second vane 220
rotates about the second vane shaft 221, the first vane 210
descends downward while advancing in the discharge direction of the
air, and the front end 212a of the first vane rotates in the first
direction (the clockwise direction in the drawings).
[0402] The drive link 240 and the first vane link 250 rotate, and
thus, the first vane 210 can move below the discharge port 102, and
the first vane 210 can be disposed approximately horizontally. In
the related art, the vane of the indoor unit rotates in place, and
thus, the same disposition as the first vane 210 of the present
embodiment cannot be implemented.
[0403] When the vane motor 230 rotates the drive link 240 in the
second direction (counterclockwise direction) in the stop step P0,
the second vane link 260 coupled to the drive link 240 also is
rotated according to the drive link 240.
[0404] Specifically, in a case where the step is changed from the
stop step P0 to the discharge step P1, the drive link 240 is
rotated in the counterclockwise direction, the first vane link 210
is rotated in the counterclockwise direction in accordance with the
rotation of the drive link 240, and the second vane link 260
descends while being rotated relative to the first vane link
210.
[0405] Since the second vane 220 is assembled in a state of being
rotatable relative to the second vane shaft 221 and the second vane
link 260, the second vane 220 rotates in the clockwise direction
about the second vane shaft 221 by the descending of the second
vane link 260.
[0406] In order to form the horizontal wind, when the step is
changed from the stop step P0 to the discharge step P1, the
rotation directions of the first vane 210 and the second vane 220
are opposite to each other.
[0407] In the discharge step P1, the vane motor 230 is rotated
78.degree. (P1 rotation angle), the first vane 210 form an
inclination (first vane P1 inclination) of approximately 16.degree.
by the rotation of the vane motor 230, and the second vane 220
forms an inclination (second vane P1 inclination) of approximately
56.3.degree..
[0408] In the discharge step P1, the positional relationship of
axes forming the centers of rotation of the respective links is as
follows.
[0409] First, unlike P0, the second joint portion 217 and the first
joint portion 216 of the first vane 210 is disposed to be inclined
toward the front side in the discharge direction of the air. When
viewed from the side, the third joint portion 226 of the second
vane 220 is disposed at the rearmost side, the first joint portion
216 is disposed at the most front side, and the second joint
portion 217 is disposed between the first joint portion 216 and
third joint portion 226.
[0410] The 2-1st vane link shaft 261 is located lower than the
second vane shaft 221, the first drive link shaft 241 is located
lower than the 2-1st vane link shaft 261, and the 1-1st vane link
shaft 251 is located lower than the first drive link shaft 241.
[0411] In the P1 state, the third joint portion 226, the second
joint portion 217, and the first joint portion 216 are disposed in
a line, and the disposition direction is directed to the front
lower side in the discharge direction of the air. When the
discharge step P1 is provided, the second vane shaft 221, the 2-1st
vane link shaft 261, the first drive link shaft 241, and the 1-1st
vane link shaft 251 are disposed in a line.
[0412] In some embodiments, the third joint portion 226, the second
joint portion 217, and the first joint portion 216 may not be
disposed in a line.
[0413] In addition, also in the second vane shaft 221, the third
joint portion 226, the second joint portion 217, and the first
joint portion 216 may be disposed in a line. In this case, the
second vane shaft 221 is located behind the third joint portion
226.
[0414] In the P1 state, the first vane 210 and the second vane 220
provide the horizontal wind. The horizontal wind does not mean that
the discharge direction of the air is exactly horizontal. In the
horizontal wind, the first vane 210 and the second vane 220 is
connected to each other as one vane, and thus, it is possible
achieve an angle between the first vane 210 and the second vane 220
capable of causing the discharged air to flow farthest in the
horizontal direction by the connection between the first vane 210
and the second vane 220.
[0415] In the state of the discharge step P1, the gap S1 between
the front end 222a of the second vane 220 and the rear end 212b of
the first vane 210 may be formed to a minimum.
[0416] In the case of the horizontal wind, the air guided by the
second vane 220 is guided to the first vane 210. When the
discharged air flows as the horizontal wind in the P1 state, it is
possible to maximize the flow distance of the air.
[0417] Since the discharge channel 104 is formed in the up-down
direction, the inclination of the second vane 220 close to the
suction port 101 is steeper than the inclination of the first vane
210.
[0418] In the state of the discharge step P1, the 1-1st vane link
shaft 251 of the first vane link 250 is located below the 1-2nd
vane link shaft 252.
[0419] In the state of the discharge step P1, the 2-1st vane link
shaft 261 of the second vane link 260 is located below the 2-2nd
vane link shaft portion 262.
[0420] In the state of the discharge step P1, the first drive link
shaft 241 of the drive link 240 is located below the second drive
link shaft 242 and the core link shaft 243.
[0421] In the state of the discharge step P1, in the up-down
direction, the third joint portion 226 is located at the uppermost
side, the first joint portion 216 is located at the lowermost side,
and the second joint portion 217 is located therebetween.
[0422] In the state of the discharge step P1, the first joint
portion 216 and the second joint portion 217 are located between
the core link shaft 243 and the 1-2nd vane link shaft 252.
[0423] When the discharge step P1 is provided, the first drive link
shaft 241 and the 1-1st vane link shaft 251 are located between the
core link shaft 243 and the 1-2nd vane link shaft 252.
[0424] In the state of the discharge step P1, the first drive link
shaft 241 and the 1-1st vane link shaft 251 are located below the
suction grill 320. In the state of the discharge step P1, the first
drive link shaft 241 and the 1-1st vane link shaft 251 are located
below the discharge port 102. The 2-1st vane link shaft 261 is
located across a boundary of the discharge port 102.
[0425] According to this disposition, in the state of the discharge
step P1, the first vane 210 is located below the discharge port
102. In the state of the discharge step P2, the front end 222a of
the second vane 220 is located below the discharge port 102, and
the rear end 222b is located above the discharge port 102.
[0426] Next, in the state of the discharge step P1, relative
positions and directions of the respective links are as
follows.
[0427] A length direction of the first drive link body 246 is
defined as D-D'. A length direction of the first vane link 250 is
defined as L1-L1'.
[0428] A length direction of the second vane link 260 is defined as
L2-L2'.
[0429] In the state of the discharge step P1, the first vane link
250, the second vane link 260, and the first drive link body 246
are disposed in the same direction as each other. In the present
embodiment, the first vane link 250, the second vane link 260, and
the first drive link body 246 are all disposed in the up-down
direction in the state of the discharge step P1.
[0430] Specifically, L1-L1' of the first vane link 250 is disposed
substantially vertically, and L2-L2' of the second vane link 260 is
disposed substantially vertically. D-D' of the first drive link
body 246 is disposed to face downward in the discharge direction of
the air.
[0431] In the state of the discharge step P1, the first vane 210 is
located below the discharge port 102 and the front end 222a of the
second vane 220 is located below the discharge port 102. That is,
in the case of the horizontal wind, only a portion of the second
vane 220 is located outside the discharge port 102, and the entire
first vane 210 is located outside the discharge port 102.
[0432] In the state of the discharge step P1, the front end 212a of
the first vane 210 based on the discharge port 102 is located in
front of the front edge 102a of the discharge port 102.
[0433] Discharge Step P2
[0434] The drive link 240 rotates in the second direction (the
counterclockwise direction in the drawings of the present
embodiment) opposite to the first direction in a state of the
horizontal wind of the discharge step P1, and thus, the discharge
step P2 can be formed.
[0435] When the vane module provides any discharge step of P2 to
P5, the rear end 212b of the first vane is located higher than the
front end 222a of the second vane and is located to be equal to or
lower than the 2-1st vane link shaft.
[0436] In addition, when the vane module provides any discharge
step of P2 to P5, an angle between the core link shaft 243, the
first drive link shaft 241, and the 1-1st vane link shaft 251 in
the clockwise direction with respect to the imaginary line D-D'
connecting the core link shaft 243 and the first drive link shaft
241 to each other is an acute angle.
[0437] In the state of the discharge step P2, the vane module 200
may provide oblique wind. The oblique wind is defined as wind
generated in a discharge step between the horizontal wind and the
vertical wind. In the present embodiment, the oblique wind is
generated in P2, P2, P4, and P5 steps.
[0438] In the inclined wind, the air is discharged below the
horizontal wind of the discharge step P1. In the discharge step P2,
both the first vane 210 and the second vane 220 are adjusted to
face further downward than in P1.
[0439] The discharge step P2 provides wind similar to the
horizontal wind, and the discharged air flows along the ceiling of
the room. In addition, the air flow to a lower side toward the
bottom after the air hits the wall of the room, and the air returns
to the indoor unit side after the air hits the bottom.
[0440] In the discharge step P2, indirect wind provides for the
occupant.
[0441] In the discharge step P2, a gap S2 between the front end
222a of the second vane 220 and the rear end 212b of the first vane
210 is formed wider than the gap S1 in the state of the discharge
step P1.
[0442] That is, when the discharge step proceeds from P1 to P2, the
gap between the front end 222a of the second vane 220 and the rear
end 212b of the first vane 210 is widened. Compared to the
discharge P1, in the discharge step P2, the first vane 210 and the
second vane 220 are disposed more vertically.
[0443] When the step is changed from the discharge step P1 to the
discharge step P2, the front end 222a of the second vane 220
descends and the rear end 212b of the first vane 210 ascends.
[0444] In the state of the discharge step P2, the front end 222a of
the second vane 220 and the rear end 212b of the first vane 210 are
respectively located at heights similar to each other.
[0445] If the discharge step proceeds from P1 to P2, the second
vane 220 is rotated in place about the second vane shaft 221.
However, since the first vane 210 is assembled together with the
drive link 240 and the first vane link 250, the first vane 210
rotates (swings).
[0446] In particular, if the step proceeds from P1 to P2, the first
vane 210 further advances in the discharge direction of the air,
and the front end 212a of the first vane further rotates in the
first direction (clockwise direction in the drawings).
[0447] Since the second vane 220 is assembled to be rotatable
relative to the second vane shaft 221 and the second vane link 260,
the second vane 220 further rotates in the clockwise direction
about the second vane shaft 221 by the rotation of the second vane
link 260.
[0448] The front end 222a of the second vane 220 further rotates in
the second direction (the clockwise direction in the drawings).
[0449] When the discharge step proceeds from P1 to P2, the rotation
directions of the first vane 210 and the second vane 220 are
opposite to each other.
[0450] In the discharge step P2, the vane motor 230 rotates
82.degree. (P2 rotation angle), the first vane 210 forms an
inclination (first vane P2 inclination) of approximately
18.6.degree. by the rotation of the vane motor 230, and the second
vane 220 forms an inclination (second vane P2 inclination) of
approximately 59.1.degree..
[0451] In the discharge step P2, the positional relationship of
axes forming the centers of rotation of the respective links is as
follows.
[0452] Similarly to P1, in the discharge step P2, the second joint
portion 217 and the first joint portion 216 of the first vane 210
is disposed to be inclined toward the front side in the discharge
direction of the air.
[0453] When viewed from the side, the third joint portion 226 of
the second vane 220 is disposed at the rearmost side, the first
joint portion 216 is disposed at the most front side, and the
second joint portion 217 is disposed between the first joint
portion 216 and third joint portion 226.
[0454] In the P2 state, when viewed from the side surface of the
vane module 200, the third joint portion 226, the second joint
portion 217, and the first joint portion 216 are disposed toward
the front lower side in the discharge direction of the air.
[0455] Based on the discharge step P2, the third joint 226 further
moves downward, and the first joint portion 216 and the second
joint portion 217 further moves forward. That is, the gap between
the second vane 220 and the first vane 210 is further widened.
[0456] In the state of the discharge step P2, the disposition of
the first vane link 250, the second vane link 260, and the drive
link 240 is similar to that of the discharge step P1.
[0457] In the state of the discharge step P2, the 1-1st vane link
shaft 251 of the first vane link 250 is located below the 1-2nd
vane link shaft 252. In the state of the discharge step P2, the
2-1st vane link shaft 261 of the second vane link 260 is located
below the 2-2nd vane link shaft portion 262. In the state of the
discharge step P2, the first drive link shaft 241 of the drive link
240 is located below the second drive link shaft 242 and the core
link shaft 243.
[0458] In the state of the discharge step P2, the second vane shaft
221 is located at the uppermost side, the third joint portion 226
is located below the second vane shaft 221, the second joint
portion 217 is located below the third joint portion 226, and the
first joint portion 216 is located below the second joint portion
217.
[0459] In the state of the discharge step P2, the second joint
portion 217 is further rotated to the 1-2nd vane link shaft 252
about the core link shaft 243.
[0460] Based on the suction grill 320 or the discharge port 102, in
the state of the discharge step P2, the entire first vane 210 is
located below the discharge port 102. In the state of the discharge
step P2, the front end 222a of the second vane 220 is located below
the discharge port 102, and the rear end 222b thereof is located
above the discharge port 102.
[0461] Accordingly, in the state of the discharge step P2, the
first drive link shaft 241 and the 1-1st vane link shaft 251 are
located below the suction grill 320. In the state of the discharge
step P2, the first drive link shaft 241 and the 1-1st vane link
shaft 251 are located below the discharge port 102. The 2-1st vane
link shaft 261 is located across a boundary of the discharge port
102.
[0462] Next, in the state of the discharge step P2, relative
positions and directions of the respective links are as
follows.
[0463] In the state of the discharge step P2, the first vane link
250 and the second vane link 260 are disposed in approximately the
same direction, and the first drive link body 246 is disposed to be
inclined toward the front lower side. In particular, in the state
of the discharge step P2, the first vane link 250 and the second
vane link 260 are disposed approximately vertically.
[0464] Specifically, when the state is changed from the state of
the discharge step P1 to the state of the discharge step P2, L1-L1'
of the first vane link 250 further rotates in the discharge
direction of the air. When the state is changed from the state of
the discharge step P1 to the state of the discharge step P2, L2-L2'
of the second vane link 260 further rotates in a direction opposite
to the discharge direction of the air. When the state is changed
from the state of the discharge step P1 to the state of the
discharge step P2, D-D' of the first drive link body 246 further
rotates in the discharge direction of the air.
[0465] In the state of the discharge step P2, the entire first vane
210 is located below the discharge port 102, and only the front end
222a of the second vane 220 is located below the discharge port
102.
[0466] When the state is changed from the state of the discharge
step P1 to the state of the discharge step P2, based on the
discharge port 102, the front end 212a of the first vane 210
further moves to the front side from the front edge 102a of the
discharge port 102.
[0467] Discharge Step P3
[0468] The drive link 240 rotates in the second direction (the
counterclockwise direction in the drawings of the present
embodiment) opposite to the first direction in the state the
discharge step P2, and thus, the discharge step P3 can be
formed.
[0469] In the state of the discharge step P3, the vane module 200
can provide oblique wind which is discharged to a lower side than
the discharge step P2. In the discharge steps P3 to P5, the oblique
wind directly providing the air to the occupant is generated.
[0470] During cooling, the discharged air is heavier than indoor
air and flows to the lower side, and during heating, the discharged
is lighter than the indoor air and flow to the upper side.
Accordingly, the discharge step P3 is mainly used during the
cooling, and the discharge step P4 described later is mainly used
during heating.
[0471] The oblique wind of the discharge step P3 discharges air
below the oblique wind of the P2 step. The discharge step P3 is
adjusted so that both the first vane 210 and the second vane 220
face further downward than at P2.
[0472] In the discharge step P3, a gap S3 of the front end 222a of
the second vane 220 and the rear end 212b of the first vane 210 is
wider than the gap S2 in the state of the discharge step P2.
[0473] That is, if the discharge step proceeds from P2 to P3, the
gap between the front end 222a of the second vane 220 and the rear
end 212b of the first vane 210 is widened. In the discharge step
P3, the first vane 210 and the second vane 220 are disposed more
vertically than P2.
[0474] When the state is changed from the state of the discharge
step P2 to the state of the discharge step P3, the front end 222a
of the second vane 220 further descends, and the rear end 212b of
the first vane 210 further ascends.
[0475] In the state of the discharge step P3, the front end 222a of
the second vane 220 is located below the rear end 212b of the first
vane 210.
[0476] If the discharge step proceeds from P2 to P3, the second
vane 220 is rotated in place about the second vane shaft 221.
However, since the first vane 210 is assembled together with the
drive link 240 and the first vane link 250, the first vane 210
rotates (swings).
[0477] If the discharge step proceeds from P2 to P3, the first vane
210 is located approximately in place and rotates in the first
direction (clockwise direction). If the discharge step proceeds
from P2 to P3, the second vane 220 further rotates in the first
direction (clockwise direction).
[0478] When the discharge step proceeds from P2 to P3, the first
vane 210 in place rotates in the first direction (clockwise
direction) instead of advancing in the discharge direction.
[0479] When the discharge step proceeds from P2 to P3, the front
end 222a of the second vane 220 is further rotated in the first
direction (clockwise direction) by the descending of the second
vane link 260.
[0480] When the step is changed from the discharge step P2 to the
discharge step P3, the rotation directions of the first vane 210
and the second vane 220 are the same as each other.
[0481] In the discharge step P3, the vane motor 230 rotates
95.degree. (P3 rotation angle), the first vane 210 forms an
inclination (first vane P3 inclination) of approximately
29.6.degree. by the rotation of the vane motor 230, and the second
vane 220 forms an inclination (second vane P3 inclination) of
approximately 67.3.degree..
[0482] In the discharge step P3, the positional relationship of
axes forming the centers of rotation of the respective links is as
follows.
[0483] Similarly to P2, in the discharge step P3, the second joint
portion 217 and the first joint portion 216 of the first vane 210
is disposed to be inclined toward the front side in the discharge
direction of the air.
[0484] When viewed from the side, the third joint portion 226 of
the second vane 220 is disposed at the rearmost side, the first
joint portion 216 is disposed at the most front side, and the
second joint portion 217 is disposed between the first joint
portion 216 and third joint portion 226.
[0485] Based on the discharge step P3, the third joint portion 226
moves further downward. Based on the discharge step P3, the first
joint portion 216 and the second joint portion 217 ascend upward by
the rotations of the first vane link 250 and the first drive link
body 246 in the second direction.
[0486] Since a length of the first drive link body 246 is shorter
than a length of the first vane link 250, the upper height of the
second joint portion 217 is greater.
[0487] In the state of the discharge step P3, the dispositions in
the respective axes of the drive link 240, the first vane link 250,
and the second vane link 260 are similar to those of the state of
the discharge step P2.
[0488] However, relative heights of the first drive link shaft 241,
the 1-1st vane link shaft 251, and the 2-1st vane link shaft 261
rotated by the operations of the drive link 240, the first vane
link 250, and the second vane link 260 are different from each
other.
[0489] In the state of the discharge step P3, the first drive link
shaft 241 ascends, and the 2-1 vane link shaft 261 descends, and
thus, the heights of the first drive link shaft 241 and the 2-1st
vane link shaft 261 are similar to each other in the vertical
direction.
[0490] When the state of the discharge step is changed from P2 to
the P3, the second joint portion 217 further rotates to the 1-2st
vane link shaft 252 about the core link shaft 243, and the second
joint portion 217 is further away from the 2-1st vane link shaft
261.
[0491] In the state of the discharge step P3, the 2-2nd vane link
shaft portion 262 is located lower than the core link shaft
243.
[0492] When the state is changed from the discharge step P2 to the
discharge step P3, the 2-1 vane link shaft 261 move rearward from
the 2-2 vane link shaft portion 262.
[0493] Based on the suction grill 320 or the discharge port 102,
the positions of the first vane 210 and the second vane 220 in the
state of the discharge step P3 are similar to those in the
discharge step P2.
[0494] Accordingly, in the state of the discharge step P3, the
first drive link shaft 241 and the 1-1st vane link shaft 251 are
located below the suction grill 320 and the discharge port 102. The
2-1 vane link shaft 261 is located across the boundary of the
discharge port 102.
[0495] Next, in the state of the discharge step P3, relative
positions and directions of the respective links are as
follows.
[0496] In the state of the discharge step P3, the first vane link
250 and the second vane link 260 are disposed in directions
opposite to each other.
[0497] In the state of the discharge step P3, the first drive link
body 246 and the first vane link 250 are disposed to be inclined
toward the front lower side. In the state of the discharge step P3,
the second drive link body 247 is disposed toward the rear side and
the second vane link 260 is disposed toward the rear lower
side.
[0498] Specifically, when the state is changed from the state of
the discharge step P2 to the state of the discharge step P3, L1-L1'
of the first vane link 250 further rotates in the discharge
direction of the air. When the state is changed from the state of
the discharge step P2 to the state of the discharge step P3, L2-L2'
of the second vane link 260 further rotates in a direction opposite
to the discharge direction of the air. When the state is changed
from the state of the discharge step P2 to the state of the
discharge step P3, D-D' of the first drive link body 246 further
rotates in the discharge direction of the air.
[0499] When the step is changed from the discharge step P2 to the
discharge step P3, based on the discharge port 102, both the first
vane 210 and the second vane 220 rotates more vertically toward the
lower side.
[0500] Discharge Step P4
[0501] The drive link 240 rotates in the second direction (the
counterclockwise direction in the drawings of the present
embodiment) opposite to the first direction in the state the
discharge step P3, and thus, the discharge step P4 can be
formed.
[0502] In the state of the discharge step P4, the vane module 200
can provide oblique wind which is discharged to a lower side than
the discharge step P3. In the oblique wind of the discharge step
P4, the air is discharged below the oblique wind of the P3
step.
[0503] The discharge step P4 is adjusted so that both the first
vane 210 and the second vane 220 face further downward than at the
discharge step P3.
[0504] In the discharge step P4, a gap S4 of the front end 222a of
the second vane 220 and the rear end 212b of the first vane 210 is
wider than the gap S3 in the state of the discharge step P3.
[0505] If the discharge step proceeds from P3 to P4, the gap
between the front end 222a of the second vane 220 and the rear end
212b of the first vane 210 is widened. In the discharge step P4,
the first vane 210 and the second vane 220 are disposed more
vertically than P3.
[0506] When the state is changed from the state of the discharge
step P3 to the state of the discharge step P4, the front end 222a
of the second vane 220 further descends, and the rear end 212b of
the first vane 210 further ascends.
[0507] In the state of the discharge step P4, the front end 222a of
the second vane 220 is located below the front end 222a in the
discharge step P3, and the rear end 212b of the first vane 210 is
located above the rear end 212b in the discharge step P3.
[0508] When the discharge step is changed from P3 to P4, the second
vane 220 rotates in place about the second vane shaft 221. When the
discharge step is changed from P3 to P4, the first joint portion
216 of the first vane 210 remain substantially in place, and the
second joint portion 217 rotates in the first direction (clockwise
direction) about the first joint portion 216.
[0509] That is, when the discharge step is changed from P3 to P4,
the movement of the first vane 210 hardly occurs, and forms a
rotational movement in place. When the discharge step is changed
from P3 to P4, the first vane 210 rotates in a first direction
(clockwise direction) about the first joint portion 216.
[0510] If the discharge step is changed from P3 to P4, the second
vane 220 further rotates in the first direction (clockwise
direction).
[0511] When the discharge step proceeds from P3 to P4, the front
end 222a of the second vane 220 is further rotated in the first
direction (clockwise direction) by the descending of the second
vane link 260.
[0512] When the step is changed from the discharge step P3 to the
discharge step P4, the rotation directions of the first vane 210
and the second vane 220 are the same as each other.
[0513] When the step is changed from the discharge step P3 to the
discharge step P4, the 1-1st vane link shaft 251 may be located in
front of the 1-2nd vane link shaft 252.
[0514] In the discharge step P4, the vane motor 230 rotates
100.degree. (P4 rotation angle), the first vane 210 forms an
inclination (first vane P4 inclination) of approximately
35.8.degree. by the rotation of the vane motor 230, and the second
vane 220 forms an inclination (second vane P4 inclination) of
approximately 70.degree..
[0515] In the discharge step P4, the positional relationship of
axes forming the centers of rotation of the respective links is as
follows.
[0516] Similarly to P3, in the discharge step P4, the second joint
portion 217 and the first joint portion 216 of the first vane 210
is disposed to be inclined toward the front side in the discharge
direction of the air.
[0517] When viewed from the side, the third joint portion 226 of
the second vane 220 is disposed at the rearmost side, the first
joint portion 216 is disposed at the most front side, and the
second joint portion 217 is disposed between the first joint
portion 216 and third joint portion 226.
[0518] Based on the discharge step P4, the third joint portion 226
moves further downward. Based on the discharge step P4, the first
joint portion 216 of the first vane link 250 slight ascends in the
second direction (counterclockwise direction) or is located in
place, and the second joint portion 217 rotates in the first
direction (clockwise direction) about the first joint portion
216.
[0519] If the first vane 210 rotates beyond the rotation in the
discharge step P4, the first vane 210 moves in a direction opposite
to the advance direction so far. From the discharge step P1 to the
discharge step P4, the first vane 210 moves in the discharge
direction of the air and rotates in the first direction (clockwise
direction) about the second joint portion 217.
[0520] In the state of the discharge step P4, the dispositions in
the respective axes of the drive link 240, the first vane link 250,
and the second vane link 260 are similar to those of the state of
the discharge step P3. However, in the state of the discharge step
P4, the length direction of the first drive link body 246, the
second joint portion 217, and the first joint portion 216 are
disposed in a line.
[0521] The relative heights of the first drive link shaft 241, the
1-1st vane link shaft 251, and the 2-1st vane link shaft 261
rotated by the operations of the drive link 240, the first vane
link 250, and the second vane link 260 are different from each
other.
[0522] In the state of the discharge step P4, the first drive link
shaft 241 ascends, the 2-1 vane link shaft 261 descends, and thus,
the first drive link shaft 241 is located slight higher than the
2-1st vane link shaft 261.
[0523] When the state of the discharge step is changed from P3 to
the P4, the second joint portion 217 further rotates to the 1-2st
vane link shaft 252 about the core link shaft 243, and the core
link shaft 243, the first drive link shaft 241, and the 1-1st vane
link shaft 251 may be disposed in a line in the form of a straight
line.
[0524] In the state of the discharge step P4, the 2-2nd vane link
shaft portion 262 is located lower than the core link shaft
243.
[0525] When the state is changed from the discharge step P3 to the
discharge step P4, the 2-1 vane link shaft 261 further move
rearward from the 2-2 vane link shaft portion 262.
[0526] Based on the suction grill 320 or the discharge port 102,
the positions of the first vane 210 and the second vane 220 in the
state of the discharge step P4 are similar to those in the
discharge step P3.
[0527] Next, in the state of the discharge step P4, relative
positions and directions of the respective links are as
follows.
[0528] When the state is changed from the discharge step P3 to the
discharge step P4, the first vane link 250 and the second vane link
260 are disposed in directions opposite to each other. When the
state is changed from the discharge step P3 to the discharge step
P4, the first vane link 250 hardly rotates, and only the second
vane link 260 may rotate to the rear side.
[0529] In the present embodiment, there is no separate
configuration for limiting the movement of the first vane link 250.
In the present embodiment, the movement of the first vane link 250
may be limited through a coupling relationship between the first
vane link 250, the first vane 210, and the first drive link body
246.
[0530] In the state of the discharge step P4, the first drive link
body 246 and the first vane link 250 are disposed to be inclined
toward the front lower side. In the state of the discharge step P4,
the second drive link body 247 is disposed toward the rear side and
the second vane link 260 is disposed toward the rear lower
side.
[0531] In the present embodiment, when the state is changed from
the state of the discharge step P3 to the state of the discharge
step P4, L1-L1' of the first vane link 250 further rotates in the
discharge direction of the air. When the state is changed from the
state of the discharge step P3 to the state of the discharge step
P4, L2-L2' of the second vane link 260 further rotates in the
direction opposite to the discharge direction of the air. When the
state is changed from the state of the discharge step P3 to the
state of the discharge step P4, D-D' of the first drive link body
246 further rotates in the discharge direction of the air. An
imaginary straight line connecting the first joint portion 216 and
the second joint portion 217 to each other is defined as B-B'.
[0532] In the discharge step P4, D-D' and B-B' are connected to
each other by a straight line, and an angle of 180.degree. is
formed therebetween.
[0533] An angle less than 180.degree. between D-D' and B-B' is
formed from the discharge step P1 to the discharge step P3, an
angle of 180.degree. is formed therebetween in the discharge step
P4, and an angle equal to or more than 180.degree. is formed
therebetween in the discharge steps P5 and P6.
[0534] Discharge Step P5
[0535] The drive link 240 rotates in the second direction (the
counterclockwise direction in the drawings of the present
embodiment) opposite to the first direction in the state the
discharge step P4, and thus, the discharge step P5 can be
formed.
[0536] In the state of the discharge step P5, the vane module 200
can provide oblique wind which is discharged to a lower side than
the discharge step P4. In the oblique wind of the discharge step
P5, the air is discharged below the oblique wind of the discharge
step P3.
[0537] The discharge step P5 is adjusted so that both the first
vane 210 and the second vane 220 face further downward than at the
discharge step P4.
[0538] In the discharge step P5, a gap S5 of the front end 222a of
the second vane 220 and the rear end 212b of the first vane 210 is
wider than the gap S4 in the state of the discharge step P4.
[0539] If the discharge step proceeds from P4 to P6, the gap
between the front end 222a of the second vane 220 and the rear end
212b of the first vane 210 is widened. In the discharge step P5,
the first vane 210 and the second vane 220 are disposed more
vertically than P4.
[0540] When the state is changed from the state of the discharge
step P3 to the state of the discharge step P4, the front end 222a
of the second vane 220 further descends, and the rear end 212b of
the first vane 210 further ascends.
[0541] In the state of the discharge step P5, the front end 222a of
the second vane 220 is located below the front end 222a in the
discharge step P4, and the rear end 212b of the first vane 210 is
located above the rear end 212b in the discharge step P3.
[0542] When the discharge step is changed from P4 to P5, the second
vane 220 rotates in place about the second vane shaft 221. When the
discharge step is changed from P4 to P5, the first joint portion
216 of the first vane 210 remain substantially in place, and the
second joint portion 217 further rotates in the first direction
(clockwise direction) about the first joint portion 216.
[0543] That is, when the discharge step is changed from P4 to P5,
the movement of the first vane 210 hardly occurs, and the first
vane 210 rotates in place about the first joint portion 216.
[0544] When the discharge step is changed from P4 to P5, the first
vane 210 further rotates in a first direction (clockwise direction)
about the first joint portion 216. When the discharge step is
changed from P4 to P5, the second vane 220 further rotates in the
first direction (clockwise direction).
[0545] When the discharge step proceeds from P4 to P5, the front
end 222a of the second vane 220 is further rotated in the first
direction (clockwise direction) by the descending of the second
vane link 260.
[0546] When the step is changed from the discharge step P4 to the
discharge step P5, the rotation directions of the first vane 210
and the second vane 220 are the same as each other.
[0547] When the step is changed from the discharge step P4 to the
discharge step P5, the 1-1st vane link shaft 251 may be located in
front of the 1-2nd vane link shaft 252.
[0548] In the discharge step P5, the vane motor 230 rotates
105.degree. (P5 rotation angle), the first vane 210 forms an
inclination (first vane P5 inclination) of approximately
44.1.degree. by the rotation of the vane motor 230, and the second
vane 220 forms an inclination (second vane P5 inclination) of
approximately 72.3.degree..
[0549] In the discharge step P5, the positional relationship of
axes forming the centers of rotation of the respective links is as
follows.
[0550] Similarly to P4, in the discharge step P5, the second joint
portion 217 and the first joint portion 216 of the first vane 210
is disposed to be inclined toward the front side in the discharge
direction of the air.
[0551] When viewed from the side, the third joint portion 226 of
the second vane 220 is disposed at the rearmost side, the first
joint portion 216 is disposed at the most front side, and the
second joint portion 217 is disposed between the first joint
portion 216 and third joint portion 226.
[0552] Based on the discharge step P5, the third joint portion 226
moves further downward, and the second joint portion 217 of the
first vane link 250 rotates in the first direction (clockwise
direction) about the first joint portion 216.
[0553] In the discharge step P5, based on an imaginary straight
line connecting the core link shaft 243 and the first joint portion
216 to each other, the second joint portion 217 is located to
protrude the 1-2nd vane link shaft 252 side.
[0554] In the state of the discharge step P5, the dispositions in
the respective axes of the drive link 240, the first vane link 250,
and the second vane link 260 are similar to those of the state of
the discharge step P4.
[0555] The relative heights of the first drive link shaft 241, the
1-1st vane link shaft 251, and the 2-1st vane link shaft 261
rotated by the operations of the drive link 240, the first vane
link 250, and the second vane link 260 are different from each
other.
[0556] When the state is changed from the state of the discharge
step P4 to the state of the discharge step P5, the first drive link
shaft 241 ascends, the 2-1 vane link shaft 261 descends.
Accordingly, in the discharge step P5, the first drive link shaft
241 is located slight higher than the 2-1st vane link shaft
261.
[0557] When the state is changed from the state of the discharge
step P4 to the state of the discharge step P5, the second joint
portion 217 rotates about the core link shaft 243, and the second
joint portion 217 further rotates to the 1-2nd vane link shaft
252.
[0558] In the discharge step P4, the core link shaft 243, the first
drive link shaft 241, and the 1-1st vane link shaft 251 are
disposed in a line, and in the discharge step P5, the core link
shaft 243, the first drive link shaft 241, and the 1-1st vane link
shaft 251 form an obtuse angle (based on D-D') equal to or more
than 180.degree..
[0559] In the state of the discharge step P5, the 2-2nd vane link
shaft portion 262 is located lower than the core link shaft
243.
[0560] When the step proceeds from the discharge step P1 to the
discharge step P6, an angle formed between the core link shaft 243,
the 2-2nd vane link shaft portion 262, and the third joint portion
226 gradually increases.
[0561] However, when the step proceeds from the discharge step P1
to the discharge step P6, the angle formed between the core link
shaft 243, the 2-2nd vane link shaft portion 262, and the third
joint portion 226 is less than 180.degree..
[0562] When the state is changed from the state of the discharge
step P4 to the state of the discharge step P5, the 2-1 vane link
shaft 261 further move rearward from the 2-2 vane link shaft
portion 262 and is located between the third joint portion 226 and
the core link shaft 243.
[0563] Based on the suction grill 320 or the discharge port 102,
the positions of the first vane 210 and the second vane 220 in the
state of the discharge step P5 are similar to those in the
discharge step P4.
[0564] Next, in the state of the discharge step P5, relative
positions and directions of the respective links are as
follows.
[0565] When the state is changed from the discharge step P4 to the
discharge step P5, the first vane link 250 and the second vane link
260 are disposed in directions opposite to each other. When the
state is changed from the discharge step P4 to the discharge step
P5, the first vane link 250 hardly rotates, and only the second
vane link 260 may further rotate to the rear side.
[0566] In the state of the discharge step P5, a disposition of the
first drive link body 246, the first vane link 250, and the second
vane link 260 is similar to that of the discharge step P4.
[0567] In the present embodiment, when the state is changed from
the state of the discharge step P4 to the state of the discharge
step P5, L1-L1' of the first vane link 250 may rotate in the
direction opposite to the discharge direction of the air. When the
state is changed from the state of the discharge step P4 to the
state of the discharge step P5, L2-L2' of the second vane link 260
further rotates in the direction opposite to the discharge
direction of the air. When the state is changed from the state of
the discharge step P4 to the state of the discharge step P5, D-D'
of the first drive link body 246 rotates in the discharge direction
of the air.
[0568] In the discharge step P5, the angle between D-D' and B-B' is
an obtuse angle.
[0569] When the state proceeds from the state of the discharge step
P1 to the state of the discharge step P4, the front end 212a of the
first vane moves in the discharge direction of the air. However,
when the state proceeds from the state of the discharge step P4 to
the state of the discharge step P6, the front end 212a of the first
vane moves to a side (rear side) opposite in the discharge
direction of the air.
[0570] Accordingly, when the state proceeds from the state of the
discharge step P4 to the state of the discharge step P6, the first
vane 210 may be disposed more vertically.
[0571] Discharge Step P6
[0572] In the present embodiment, the state of the vane module 200
in the discharge step P6 is defined as the vertical wind.
[0573] The vertical wind does not means that the first vane 210 and
the second vane 220 constituting the vane module 200 are disposed
vertically. The vertical wind means that the air discharged from
the discharge port 102 is discharged below the discharge port
102.
[0574] The drive link 240 rotates in the second direction (the
counterclockwise direction in the drawings of the present
embodiment) opposite to the first direction in the state the
discharge step P5, and thus, the discharge step P6 can be formed.
In the discharge step P6, a flow of the discharged air in the
horizontal direction is minimized, and a flow thereof in the
vertical direction is maximized. In the vertical wind of the
discharge step P6, the air is discharged below the oblique wind of
the discharge step P5.
[0575] The discharge step P6 is adjusted so that both the first
vane 210 and the second vane 220 face further downward than at the
discharge step P5.
[0576] When the discharge step P6 is provided, the rear end 222b of
the second vane is located above the discharge port, the front end
222a of the second vane is located below the discharge port, the
rear end 212b of the first vane is located higher than the front
end 222a of the second vane and located higher than the discharge
port. In addition, the front end 212a of the first vane is located
lower than front end 222a of the second vane.
[0577] When the discharge step P6 is provided, the rear end 212b of
the first vane is disposed to face the discharge port 102.
[0578] In the discharge step P6, a gap S6 of the front end 222a of
the second vane 220 and the rear end 212b of the first vane 210 is
wider than the gap S5 in the state of the discharge step P5.
[0579] If the discharge step proceeds from P5 to P6, the gap
between the front end 222a of the second vane 220 and the rear end
212b of the first vane 210 is widened. In the discharge step P6,
the first vane 210 and the second vane 220 are disposed more
vertically than P5.
[0580] When the state is changed from the state of the discharge
step P5 to the state of the discharge step P6, the front end 222a
of the second vane 220 further descends, and the rear end 212b of
the first vane 210 further ascends.
[0581] In the state of the discharge step P6, the front end 222a of
the second vane 220 is located below the front end 222a in the
discharge step P5, and the rear end 212b of the first vane 210 is
located above the rear end 212b in the discharge step P5.
[0582] When the discharge step is changed from P5 to P6, the second
vane 220 rotates in place about the second vane shaft 221. When the
discharge step is changed from P5 to P6, the first joint portion
216 of the first vane 210 remain substantially in place, and the
second joint portion 217 further rotates in the first direction
(clockwise direction) about the first joint portion 216.
[0583] That is, when the discharge step is changed from P5 to P6,
the first vane 210 may move to the rear side. When the discharge
step is changed from P5 to P6, since the first vane 210 further
rotates in the first direction (clockwise direction) about the
first joint portion 216, the front end 212a of the first vane 210
moves to the rear side.
[0584] When the discharge step is changed from P5 to P6, the second
vane 220 further rotates in the first direction (clockwise
direction). When the discharge step is changed from P5 to P6, the
front end 222a of the second vane 220 is further rotated in the
first direction (clockwise direction) by the descending of the
second vane link 260.
[0585] When the step is changed from the discharge step P5 to the
discharge step P6, the rotation directions of the first vane 210
and the second vane 220 are the same as each other.
[0586] In the discharge step P4, the vane motor 230 rotates
110.degree. (P6 rotation angle), the first vane 210 forms an
inclination (first vane P6 inclination) of approximately
56.7.degree. by the rotation of the vane motor 230, and the second
vane 220 forms an inclination (second vane P6 inclination) of
approximately 74.degree..
[0587] In the discharge step P6, the positional relationship of
axes forming the centers of rotation of the respective links is as
follows.
[0588] Similarly to the discharge step P5, in the discharge step
P6, the second joint portion 217 and the first joint portion 216 of
the first vane 210 is disposed to be inclined toward the front side
in the discharge direction of the air.
[0589] When viewed from the side, the third joint portion 226 of
the second vane 220 is disposed at the rearmost side, the first
joint portion 216 is disposed at the most front side, and the
second joint portion 217 is disposed between the first joint
portion 216 and third joint portion 226.
[0590] Based on the discharge step P6, the third joint portion 226
moves further downward, and the second joint portion 217 of the
first vane link 250 rotates in the first direction (clockwise
direction) about the first joint portion 216.
[0591] In the discharge step P6, based on an imaginary straight
line connecting the core link shaft 243 and the first joint portion
216 to each other, the second joint portion 217 is located to
further protrude the 1-2nd vane link shaft 252 side.
[0592] In the state of the discharge step P6, the dispositions in
the respective axes of the drive link 240, the first vane link 250,
and the second vane link 260 are similar to those of the state of
the discharge step P5.
[0593] The relative heights of the first drive link shaft 241, the
1-1st vane link shaft 251, and the 2-1st vane link shaft 261
rotated by the operations of the drive link 240, the first vane
link 250, and the second vane link 260 are different from each
other.
[0594] When the discharge step P6 is provided, the rear end 212b of
the first vane is located below the core link shaft 243 and is
located in front of the core link shaft 243. When the discharge
step P6 is provided, the front end 212a of the first vane is behind
the front edge 102a of the discharge port.
[0595] When the state is changed from the state of the discharge
step P5 to the state of the discharge step P6, the first drive link
shaft 241 ascends, the 2-1 vane link shaft 261 descends.
Accordingly, in the discharge step P6, the first drive link shaft
241 is located slight higher than the 2-1st vane link shaft
261.
[0596] When the discharge step P6 is provided, the 2-2nd vane link
shaft portion 262 is located lower than the core link shaft 243,
the first drive link shaft 241 is located lower than the 2-2nd vane
link shaft portion 262, the 2-1st vane link shaft 261 is located
lower than the first drive link shaft 241, and the 1-1st vane link
shaft 251 is located lower than the 2-1st vane link shaft 261.
[0597] When the state is changed from the state of the discharge
step P5 to the state of the discharge step P6, the second joint
portion 217 rotates about the core link shaft 243, and the second
joint portion 217 further rotates to the 1-2nd vane link shaft
252.
[0598] When viewed from the side, in the discharge step P6, at
least a portion of the second joint portion 217 may overlap the
first vane link body 255. Since the second joint portion 217 moves
to a position at which the second joint portion 217 and the first
vane link body 255 overlap each other, the first vane 210 may be
disposed more vertically.
[0599] However, in the discharge step P6, the second joint portion
217 does not move beyond L1-L1'. The second joint portion 217 does
not move forward from the first vane link body 255. In a case where
the second joint portion 217 excessively move forward, even when
the vane motor is rotated in the first direction (clockwise
direction), the second joint portion 217 cannot be returned to an
original position.
[0600] Accordingly, in order to prevent the excessive rotation of
the drive link 240, in the discharge step P6, the first drive link
body 246 and one end 270a of the stopper 270 interfere with each
other. The first drive link body 246 is supported by the stopper
270 and a further rotation of the first drive link body 246 is
limited.
[0601] In the discharge step P6, the core link shaft 243, the first
drive link shaft 241, and the 1-1st vane link shaft 251 form an
obtuse angle (clockwise direction based on D-D') equal to or more
than 180.degree..
[0602] When the step is changed from the discharge step P5 to the
discharge step P6, the 1-1st vane link shaft 251 may be located in
front of the 1-2 vane link shaft 252.
[0603] In the state of the discharge step P6, the 2-2nd vane link
shaft portion 262 is located below the core link shaft 243, the
second joint portion 217 is located below the 2-2nd vane link shaft
portion 262, the third joint portion 226 is located below the
second joint portion 217, and the first joint portion 216 is
located below the third joint portion 226.
[0604] When the state is changed from the state of the discharge
step P5 to the discharge step P6, the 2-1st vane link shaft 216
further moves rearward from the 2-2nd vane link shaft portion 262
and is located between the third joint portion 226 and the core
link shaft 243.
[0605] Next, in the state of the discharge step P6, relative
positions and directions of the respective links are as
follows.
[0606] When the state is changed from the state of the discharge
step P5 to the state of the discharge step P6, the first vane link
250 and the second vane link 260 are disposed in directions
opposite to each other. When the state is changed from the
discharge step P4 to the discharge step P5, the first vane link 250
hardly rotates, and only the second vane link 260 may further
rotate to the rear side.
[0607] In the state of the discharge step P6, a disposition of the
first drive link body 246, the first vane link 250, and the second
vane link 260 is similar to that of the discharge step P5.
[0608] When the discharge step P6 is provided, the 2-1st vane link
shaft 261 is located in front of the second vane shaft 221, the
2-2nd vane link shaft portion 262 is located in front of the 2-1st
vane link shaft 261, and the 1-1st vane link shaft 251 is located
in front of the first drive link shaft 241, the core link shaft 243
is located in front of the 2-2nd vane link shaft portion 262, the
first drive link shaft 241 is located in front of the core link
shaft 243, and the 1-1st vane link shaft 251 is located in front of
the first drive link shaft 241.
[0609] In the present embodiment, when the state is changed from
the state of the discharge step P5 to the state of the discharge
step P6, L1-L1' of the first vane link 250 further rotates in the
direction opposite to the discharge direction of the air. When the
state is changed from the state of the discharge step P5 to the
state of the discharge step P6, L-L' of the second vane link 260
further rotates in the direction opposite to the discharge
direction of the air. When the state is changed from the state of
the discharge step P5 to the state of the discharge step P6, D-D'
of the first drive link body 246 may further rotate in the
direction opposite to the discharge direction of the air.
[0610] In the obtuse angle which is the angle between D-D' and B-B'
in the discharge step P6 is larger than the obtuse angle which is
the angle between D-D' and B-B' in the discharge step P5.
[0611] When the state proceeds from the state of the discharge step
P1 to the state of the discharge step P4, the front end 212a of the
first vane moves the discharge direction (front side) of the
air.
[0612] When the state proceeds from the state of the discharge step
P1 to the state of the discharge step P4, the first vane link 250
rotates in the second direction (counterclockwise direction).
However, when the state proceeds from the state of the discharge
step P4 to the state of the discharge step P6, the first vane link
250 rotates in the first direction (clockwise direction).
[0613] Accordingly, when the state proceeds from the state of the
discharge step P1 to the state of the discharge step P4, the front
end 212a of the first vane rotates in the second direction and
ascends. However, when the state proceeds from the state of the
discharge step P4 to the state of the discharge step P6, the front
end 212a of the first vane rotates in the first direction and
descends. That is, the movement of the first vane 210 is changed
based on the discharge step P4.
[0614] When the state proceeds from the state of the discharge step
P4 to the state of the discharge step P6, the first vane 210 can be
disposed more vertically. In the state of the discharge step P6,
the rear end 212b of the first vane 210 is located in front of the
core link shaft 243.
[0615] In the discharge step P6, when the vane module 200 forms the
vertical wind, the first vane 210 and the second vane 220 are
spaced apart from each other at maximum.
[0616] In the discharge step P6, when viewed from the side surface
of the vane module 200, any one of the second joint portion 217 and
the first drive link shaft 241 overlaps the first vane link
250.
[0617] In the discharge step P6, when viewed from the side surface
of the vane module 200, any one of the second joint portion 217 and
the first drive link shaft 241 is located on the line L1-L1' of the
first vane link 250 or is located behind the line L1-L1'.
[0618] In the discharge step P6, when viewed from the side surface
of the vane module 200, the rear end 212b of the first vane 210 is
located inside the discharge port 102 and is located higher than an
outer surface of the side cover 314. Since the rear end 212b of the
first vane 210 is located inside the discharge port 102, the
discharge port 102 can guide the air more vertically.
[0619] Concentration Improvement Cooling Mode
[0620] A concentration improvement cooling mode of the ceiling type
indoor unit according to the present embodiment will be described
with reference to FIGS. 1 to 4, 15, and 25.
[0621] A concentration improvement mode includes a cooling mode and
a heating mode. In the concentration improvement mode, a controller
controls an airflow to improve an occupant's concentration.
[0622] In a case of the concentration improvement cooling mode, the
controller controls the airflow while increasing a set temperature
by 1.degree. C., and in a case of the concentration improvement
heating mode, the controller controls the airflow while decreasing
the set temperature by 1.degree. C.
[0623] The indoor unit according to the present embodiment includes
the first vane module 201 which is disposed at the edge of the
suction port 101 based on the suction port 101, the third vane
module 203 which is disposed at the edge of the suction port 101
and is disposed on a side opposite to the first vane module 201
based on the suction portion 101, the second vane module 202 which
is disposed at the edge of the suction port 101 and is disposed to
form an angle of 90.degree. between the second vane module 202 and
each of the first vane module 201 and the third vane module 203
based on the suction port 101, and the fourth vane module 204 which
is disposed at the edge of the suction port 101 and is disposed on
a side opposite to the second vane module 202 based on the suction
port 101.
[0624] Unlike the present embodiment, only two vane modules may be
disposed in the indoor unit, and the two vane modules may be
disposed in directions different from each other.
[0625] Moreover, in the present embodiment, two vanes are disposed
in each vane module. However, only one vane may be disposed in each
vane module and may operate the concentration improvement cooling
mode.
[0626] When viewed from the bottom, the indoor unit includes the
first vane module 201 which is disposed at the edge of the suction
port 101 and is disposed at 12 o'clock based on the suction port
101, the second vane module 202 which is disposed at the edge of
the suction port 101 and is disposed at 3 o'clock based on the
suction port 101, the third vane module 203 which is disposed at
the edge of the suction port 101 and is disposed at 6 o'clock based
on the suction port 101, and the fourth vane module 204 which is
disposed at the edge of the suction port 101 and is disposed at 9
o'clock based on the suction port 101.
[0627] For convenience of description, the discharge port in which
the first vane module 201 is disposed is defined as a first
discharge port 102-1, the discharge port in which the second vane
module 202 is disposed is defined as a second discharge port 102-2,
the discharge port in which the third vane module 203 is disposed
is defined as a third discharge port 102-3, and the discharge port
in which the fourth vane module 204 is disposed is defined as a
fourth discharge port 102-4.
[0628] When viewed from the bottom, the first vane module 201 is
disposed in a direction of 12 o'clock and discharges the air in the
direction of 12 o'clock, the second vane module 201 is disposed in
a direction of 3 o'clock and discharges the air in the direction of
3 o'clock, the third vane module 203 is disposed in a direction of
6 o'clock and discharges the air in the direction of 6 o'clock, and
the fourth vane module 204 is disposed in a direction of 9 o'clock
and discharges the air in the direction of 9 o'clock.
[0629] When viewed from the bottom, the air discharge directions of
the first vane module 201 and the third vane module 203 are
opposite to each other. The air discharge directions of the second
vane module 202 and the fourth vane module 204 are opposite to each
other.
[0630] When viewed from the bottom, the air discharge direction of
the first vane module 201 is orthogonal to the air discharge
directions of the second vane module 202 and the fourth vane module
204. The air discharge direction of the third vane module 203 is
orthogonal to the air discharge directions of the second vane
module 202 and the fourth vane module 204.
[0631] The air discharge direction of the first vane module 201 is
defined as a first discharge direction 291, the air discharge
direction of the second vane module 202 is defined as a second
discharge direction 292, the air discharge direction of the third
vane module 203 is defined as a third discharge direction 293, and
the air discharge direction of the fourth vane module 204 is
defined as a fourth discharge direction 294.
[0632] In the present embodiment, in the concentration improvement
cooling mode, each vane module is controlled to generate an air
flow in the room, and thus, it is possible to rapidly decrease an
indoor temperature.
[0633] In particular, in the concentration improvement cooling
mode, each vane module is controlled while the set temperature
increases by 1.degree. C., and thus, it is possible to improve the
occupants concentration.
[0634] In a control method of the ceiling type indoor unit
according to the present embodiment, during cooling, each pair of
vane modules out of two pairs of vane modules is controlled to
discharge the air in different directions.
[0635] Particularly, a pair of the first vane module 201 and the
third vane module 203 disposed to face each other, and the other
pair of the second vane module 202 and the fourth vane module 204
discharge the air in different directions.
[0636] When viewed from the bottom, the first vane module 201, the
second vane module 202, the third vane module 203, and the fourth
vane module 204 are disposed with an interval of 90.degree. based
on the suction port 101.
[0637] When viewed from the bottom, based on the suction port 101,
the discharge direction of the first vane module 201 and the
discharge direction of the second vane module 202 form an angle of
90.degree. therebetween, the discharge direction of the second vane
module 202 and the discharge direction of the third vane module 203
form an angle of 90.degree. therebetween, the discharge direction
of the third vane module 203 and the discharge direction of the
fourth vane module 204 form an angle of 90.degree. therebetween,
and the discharge direction of the fourth vane module 204 and the
discharge direction of the first vane module 201 form an angle of
90.degree. therebetween.
[0638] When viewed from the bottom, the first vane module 201 and
the third vane module 203 are located on sides opposite to each
other based on the suction port 101. When viewed from the bottom,
the second vane module 202 and the third vane module 204 are
located on sides opposite to each other based on the suction port
101.
[0639] In the present embodiment, the first vane module 201 and the
third vane module 203 which are disposed to face each other based
on the suction port 101 are defined as a first discharge pair, and
the second vane module 202 and the fourth vane module 204 are
defined as a second discharge pair.
[0640] In the concentration improvement cooling mode according to
the present embodiment, a target temperature in the room may be set
to 18.degree. C., and a speed of the indoor blowing fan may be set
to weak, medium, and strong. In the concentration improvement
cooling mode, the room target temperature or the speed of the
indoor blowing fan can be changed variously.
[0641] The control method of the ceiling type indoor unit according
to the present embodiment includes Step S10 of turning on the
concentration improvement cooling mode, Step S14 of comparing a
reference set temperature Ts0 with a current temperature after Step
S10, an auto swing step S20 of simultaneously operating the first
discharge pair including the first vane module 201 and the third
vane module 203 and the second discharge pair including the second
vane module 202 and the fourth vane module 204 for a reset auto
time (ten minutes in the present embodiment) after Step S14, a
first concentration improvement cooling step S40 of operating the
first discharge pair in the discharge step P2 and operating the
second discharge pair in the discharge step P4.5 after Step S20, a
first oblique wind unity step S50 of operating the first discharge
pair and the second discharge pair in the discharge step P3 after
Step S40, and Step S60 of determining whether or not the current
temperature Tp is equal to or less than the reference set
temperature Ts0 after Step S50.
[0642] The concentration improvement cooling mode according to the
present embodiment can be implemented in three discharge steps.
[0643] Accordingly, the second discharge step may be defined as one
inclination angle, the 4.5 discharge step may be defined as another
inclination angle, and the third discharge step may be defined as
the other inclination angle.
[0644] In a case where Step S60 is not satisfied, the control
method of the ceiling type indoor unit according to the present
embodiment further includes a second concentration improvement
cooling step S70 of operating the first discharge pair in the
discharge step P4.5 and operating the second discharge pair in the
discharge step P2, a second oblique wind unity step S80 of
operating the first discharge pair and the second discharge pair in
the discharge step P3 after Step S70, and Step S90 of determining
whether or not the current temperature Tp is equal to or less than
the reference set temperature Ts0 after Step S80.
[0645] In the control method of the ceiling type indoor unit
according to the present embodiment, in a case where Step S60 or
Step S90 is satisfied, after the set temperature increases by
1.degree. C., a process similar to Steps S40 to S70 is
repeated.
[0646] In the control method of the ceiling type indoor unit
according to the present embodiment, in a case where Step S60 or
Step S90 is satisfied, the reference set temperature Ts0 increases
to a first reference value (1.degree. C. in the present embodiment)
and is replaced with the set temperature Ts. (S100)
[0647] The control method of the ceiling type indoor unit according
to the present embodiment includes a first-A concentration
improvement cooling step S110 of operating the first discharge pair
in the discharge step P2 and operating the second discharge pair in
the discharge step P4.5 after Step S100, a second oblique wind
unity step S120 of operating the first discharge pair and the
second discharge pair in the discharge step P3 after Step S110, and
Step S130 of determining whether or not the current temperature Tp
is equal to or less than the set temperature Ts after Step
S120.
[0648] In a case where Step S130 is not satisfied, the control
method of the ceiling type indoor unit according to the present
embodiment includes a third-A concentration improvement cooling
step S140 of operating the first discharge pair in the discharge
step P4.5 and operating the second discharge pair in the discharge
step P2, a fourth-A concentration improvement cooling step S150 of
operating the first discharge pair and the second discharge pair in
the discharge step P3 after Step S140, and Step S160 of determining
whether or not the current temperature Tp is equal to or less than
the set temperature Ts after Step S150.
[0649] In the control method of the ceiling type indoor unit
according to the present embodiment, after Step S170, the step may
be returned to S110 and perform Steps S110 to S160.
[0650] In the present embodiment, during a cooling operation, S40
to S100 are defined as a first control, and S110 to S160 are
defined as a second control.
[0651] In Step S140 and Step S150 of the second control, an air
volume is set to a weak wind.
[0652] In the control method of the ceiling type indoor unit
according to the present embodiment, in a case where Step S130 or
Step S160 is satisfied, the number of second controls is
determined. (S170) Step S170 is defined as a count determination
step.
[0653] In a case where the number of the second controls is less
than 1, the set temperature Ts is increased by the first reference
value (1.degree. C. in the present embodiment), and the count is
increased by one. (S180)
[0654] When the number of the second controls is 1, the set
temperature Ts is decreased by the first reference value (1.degree.
C. in the present embodiment), and the count is increased by one.
(S190)
[0655] When the number of the second controls is greater than 1,
the set temperature Ts is increased by the first reference value
(1.degree. C. in the present embodiment), and the count is
decreased by one. (S200)
[0656] For example, in a case where Ts0 is 24.degree. C., if the
first control and the second control are performed, the current
temperature is increased to 25.degree. C., and thereafter, the step
proceeds to the count determination step S170. Since the number of
second controls is 0, the step proceeds to S180.
[0657] Accordingly, in Step S180, the set temperature is increased
by 1.degree. C. from 25.degree. C. and is set to 26.degree. C., and
the counter is increased by 1.
[0658] After the second control is performed again, if the step
proceeds to the counter determination step S170, since the count is
1, the step proceeds to Step S190.
[0659] In Step S190, the set temperature is decreased by 1.degree.
C. from 26.degree. C. and is set to 25.degree. C., and the counter
is increased by 1 and is set to 2.
[0660] After the second control is performed again, if the step
proceeds to the counter determination step S170, since the count is
2, the step proceeds to Step S200.
[0661] In Step S200, the set temperature is increased by 1.degree.
C. from 25.degree. C. and is set to 26.degree. C., and the counter
is decreased by 1 and is set to 1.
[0662] If the second control is performed after Step S200, since
the current temperature is 26.degree. C. and the count is 1, Step
S180 is performed again.
[0663] After the above-described S180, S190, and S200 steps are
determined, an operation time of the concentration improvement
cooling mode is determined (S210). If the operation time of the
concentration improvement cooling mode exceeds a first elapsed time
(five hours in the present embodiment), the concentration
improvement cooling mode ends.
[0664] In a case where the operation time of the concentration
improvement cooling mode does not exceed the first elapsed time
(five hours in the present embodiment), the step is returned to
Step S110.
[0665] In the present embodiment, a total time of the first control
is set to eight minutes, and a total time of the second control is
also set to eight minutes.
[0666] Specifically, a first elapsed time of Step S40 is set to two
minutes, a second elapsed time of Step S50 is also set to two
minutes, a third elapsed time of Step S70 is also set to two
minutes, and a fourth elapsed time of Step S80 is also set to two
minutes.
[0667] Similarly, a first-A elapsed time of Step S110 is set to two
minutes, a second-A elapsed time of Step S120 is also set to two
minutes, a third-A elapsed time of Step S140 is also set to two
minutes, and a fourth-A elapsed time of Step S150 is also set to
two minutes.
[0668] In the control method of the ceiling type indoor unit
according to the present embodiment, the indoor temperature is
increased twice by the first reference value from the reference set
temperature Ts0.
[0669] In addition, a process of decreasing the set temperature,
which is increased twice from the reference set temperature Ts0,
twice by the first reference value is repeated.
[0670] In this way, the stepwise indoor temperature control not
only meets the cooling needs of the occupant but also improves the
occupant's concentration.
[0671] In the first control, the first discharge pair performs
"discharge step P2 (S40)->discharge step P3 (S50)->discharge
step P4.5 (S70)->discharge step P3 (S80)".
[0672] In the second control, the first discharge pair performs
"discharge step P2 (340)->discharge step P3 (850)->discharge
step P4.5 (S70)->discharge step P3 (S80)".
[0673] The first vane module, the second vane module, the third
vane module, and the fourth vane module may be set to any one of
the discharge steps P1 to P6.
[0674] On the horizontal basis, the inclination of each first vane
satisfies "0.degree.<first vane inclination of discharge step
P1<first vane inclination of discharge step P2<first vane
inclination of discharge step P3<first vane inclination of
discharge step P4<first vane inclination of discharge step
P5<first vane inclination of discharge step
P6<90.degree.".
[0675] On the horizontal basis, the inclination of each second vane
satisfies "0.degree.<second vane inclination of discharge step
P1<second vane inclination of discharge step P2<second vane
inclination of discharge step P3<second vane inclination of
discharge step P4<second vane inclination of discharge step
P5<second vane inclination of discharge step
P6<90.degree.".
[0676] In addition, in each discharge step, the inclination of the
second vane is always set larger than the inclination of the first
vane.
[0677] The user can select the concentration improvement cooling
mode through a wireless remote control (not shown) or a wired
remote control (not shown). (S10) In the present embodiment, the
concentration improvement cooling mode is selected by the user, but
unlike the present embodiment, the concentration improvement
cooling mode may be automatically performed under specific
conditions.
[0678] In the present embodiment, in the case of the wireless
remote control, when the user selects a power mode, the
concentration improvement cooling