U.S. patent application number 09/842904 was filed with the patent office on 2001-11-01 for window type air conditioner.
Invention is credited to Bae, Cheung Hyun, Jung, Ju Hyun, Kang, Dong Joon, Oh, Soon Hwan.
Application Number | 20010035021 09/842904 |
Document ID | / |
Family ID | 27483452 |
Filed Date | 2001-11-01 |
United States Patent
Application |
20010035021 |
Kind Code |
A1 |
Kang, Dong Joon ; et
al. |
November 1, 2001 |
Window type air conditioner
Abstract
Window type air conditioner including an indoor heat exchanger
for heat exchange with room air, an outdoor heat exchanger for heat
exchange with external air, an air guide for partitioning a space
for fitting the indoor heat exchanger and a space for fitting the
outdoor heat exchanger, a turbo fan fitted inside of the air guide
directly, for discharging the room air heat exchanged as the room
air passes through the indoor heat exchanger into the room, again,
and a fan fitted to outside of the air guide for discharging the
external air heat exchanged as the external air passes tough the
outdoor heat exchanger again, thereby permitting uniform discharge
of cooled air from an outlet while a structure is made simple,
improving a strength as the structure is simple, and preventing air
leakage between indoor side components as assembly between the
orifice and the air guides are made accurate.
Inventors: |
Kang, Dong Joon;
(Kyongsangnam-do, KR) ; Oh, Soon Hwan;
(Kyongsangnam-do, KR) ; Jung, Ju Hyun; (Pusan-shi,
KR) ; Bae, Cheung Hyun; (Kyongsangnam-do,
KR) |
Correspondence
Address: |
BIRCH STEWART KOLASCH & BIRCH
PO BOX 747
FALLS CHURCH
VA
22040-0747
US
|
Family ID: |
27483452 |
Appl. No.: |
09/842904 |
Filed: |
April 27, 2001 |
Current U.S.
Class: |
62/262 |
Current CPC
Class: |
F24F 1/027 20130101 |
Class at
Publication: |
62/262 |
International
Class: |
F25D 023/12 |
Foreign Application Data
Date |
Code |
Application Number |
Apr 29, 2000 |
KR |
2000-23060 |
Jan 6, 2001 |
KR |
2001-865 |
Jan 6, 2001 |
KR |
2001-866 |
Jan 6, 2001 |
KR |
2001-876 |
Claims
What is claimed is:
1. A window type air conditioner comprising. an indoor heat
exchanger for heat exchange with room air; an outdoor heat
exchanger for heat exchange with external air; an air guide for
partitioning a space for fitting the indoor heat exchanger and a
space for fitting the outdoor heat exchanger; a turbo fan fitted
inside of the air guide directly, for discharging the room air heat
exchanged as the room air passes through the indoor heat exchanger
into the room, again; and, a fan fitted to outside of the air guide
for discharging the external air heat exchanged as the external air
passes through the outdoor heat exchanger; again.
2. A window type air conditioner as claimed in claim 1, wherein the
air guide includes; a partition plate having the turbo fan fitted
in a central portion and partitioning the indoor heat exchanger and
the outdoor heat exchanger and sidewall parts at both sides of the
partition plate substantially perpendicular to the partition
plate.
3. A window type air conditioner as claimed in claim 1, further
comprising an orifice between the indoor heat exchanger and the
turbo fan for effective guidance of the air passed through the
indoor heat exchanger.
4. A window type air conditioner as claimed in claim 3, wherein the
orifice includes; a partition wall having an orifice hole formed
therein for passing the air therethrough, and coupling parts formed
at both sides of, and substantially perpendicular to the partition
wall having one side coupled to both ends of the indoor heat
exchanger, and the other end coupled to both ends of the air
guide.
5. A window type air conditioner as claimed in claim 1, further
comprising a discharge guide on the air guide for effective guide
of the room air from the turbo fan to the room.
6. A window type air conditioner as claimed in claim 4, wherein the
discharge guide includes; a horizontal member having a discharge
part, and a partition part formed substantially perpendicular to a
rear end of the horizontal member for partitioning an indoor side
and an outdoor side.
7. A window type air conditioner comprising: an indoor heat
exchanger for heat exchange with room air; an outdoor heat
exchanger for heat exchange with external air; a lower air guide
for separating a space the indoor heat exchanger is mounted therein
from a space the outdoor heat exchanger is mounted therein; an
orifice fitted at a front of the lower air guide for guiding the
air passed through the indoor heat exchanger to an inside of the
lower air guide; an upper air guide assembled to a top of the lower
air guide to make surface to surface contact with the orifice and
the upper air guide; a turbo fan directly fitted to an inside of
the lower air guide for discharging the air having a heat exchanged
as the air passes though the outdoor heat exchanger into a room
again; and, a fan fitted outside of the lower ail guide for
discharging the air having a heat exchanged as the air passes
trough the outdoor heat exchanger to outside of room again.
8. A window type air conditioner as claimed in claim 7, wherein the
orifice includes an orifice hole formed at a central portion
thereof for guiding air flow, and a seating step formed along top
thereof with a step, and the upper air guide formed to match to the
seating step, such that the upper air guide includes a seating
ridge having a lower end for seating on the seating step and a side
for making a close contact with a side of the seating step.
9. A window type air conditioner as claimed in claim 8, wherein the
seating step formed in top of the orifice includes a round part,
and the upper air guide includes a round part at a lower surface
thereof matched to the round part of the seating step in the
orifice and insertion guides formed on the round part on the lower
surface of the upper air guide matched to the round part of the
upper air guide for guiding insertion of the seating step and
supporting the seating step.
10. A window type air conditioner as claimed in claim 7, wherein
the upper air guide includes end insertion guides in positions
matched to the seating ridge for guiding insertion of both ends of
top of the orifice, and maintaining a coupled state firmly after
the coupling.
11. A window type air conditioner comprising: an indoor heat
exchanger for heat exchange with room air; an outdoor heat
exchanger for heat exchange with external air; a lower air guide
for separating a space the indoor heat exchanger is mounted therein
from a space the outdoor heat exchanger is mounted therein; an
orifice fitted at a front of the lower air guide for guiding the
air passed through the indoor heat exchanger to an inside of the
lower air guide; an upper air guide assembled to a top of the lower
air guide to make surface to surface contact with the orifice and
the upper air guide; leakage preventing means provided at matched
positions of a rear wall of the lower air guide and a rear wall of
the upper air guide, the rear wall of the lower air glide being
provided for partitioning an indoor side and an outdoor side, and
the rear wail of the upper air guide is provided for partitioning
an indoor side and an outdoor side; a turbo fan directly fitted to
an inside of the lower air guide for discharging the air having a
heat exchanged as the air passes through the outdoor heat exchanger
into a room again; and, a fan fitted outside of the lower air guide
for discharging the air having a heat exchanged as the air passes
through the outdoor heat exchanger to outside of room again.
12. A window type air conditioner as claimed in claim 11, wherein
the leakage preventing means includes; a holding slot opened in a
horizontal direction in a central top surface of the rear wall of
the lower air guide, a holding piece projected backward from the
rear wall of the upper air guide at a position matched to the
holding slot for being held by the holding slot in the lower air
guide, a sealing ridge extended along the top of the rear wall of
the lower air guide, an insertion slot in a bottom surface of the
rear wall of the upper air guide at a position matched to the
sealing ridge for insertion of the sealing ridge thereto,
reinforcing ribs at top of the control box seating part opposite to
each other, and, insertion ribs at positions matched to the
reinforcing ribs for inserting between Me reinforcing ribs.
13. A window type air conditioner as claimed in claim 12, wherein
the upper air guide includes opposite supporting ribs on one side
of a bottom surface thereof for inserting into the pipe seating
part of the lower air guide to support between the control box
seating part and one sidewall of the lower air guide.
14. A window type air conditioner as claimed in claim 11, wherein
the leakage preventing means firer includes; a sill projected from
a lower surface of and extended in left and right directions on the
lower air guide, an overlap part having a seating part formed as a
step to make a surface to surface contact with the sill for seating
on a top of the sill, and a stopper for guiding the overlap part
toward the sill, and supporting the overlap part toward the sill
when coupled.
15. A window type au conditioner as claimed in claim 11, wherein
the leakage preventing means Her includes; sealing plates formed on
both sides of the orifice in up aid down directions for making
close contact with sides of the lower air guides and a sloped
sealing strip formed on a rear surface of the orifice in a form to
be matched to guide surface formed in an inside space of the lower
air guide for making a surface to surface contact with the guide
surface.
16. A window type air conditioner as claimed in claim 11, wherein
the leakage preventing means further includes; catch projections
formed on both sides of the lower air guide, catch holes formed in
the sealing plates of the orifice to be matched with the catch
projections, and another catch projections on a back surface of the
orifice opposite to the sealing plates each wit a gap to the
sealing plate the same with a thickness of the sidewall of the
lower air guide.
17. A window type air conditioner as claimed in claim 11, wherein
the leakage preventing means further includes toes on lower ends of
the orifice for covering both ends of catches on the lower air
guide to prevent air leakage.
18. A window type air conditioner as claimed in claim 11, wherein
the orifice further includes sealing ridges projected forward from
both sides of the orifice for making close contact with channels on
both sides of the indoor heat exchanger.
19. A window type air conditioner as claimed in claim 18, wherein
the sealing ridge includes a plurality of reinforcing stoppers for
securing straightness of the sealing ridges and defining a mounting
position of the indoor heat exchanger, to prevent gap formation
between the channel of the indoor heat exchanger and the sealing
ridge.
Description
BACKGROUND OF THE INVENTION
[0001] 1. Field of the Invention
[0002] The present invention relates to an air conditioner, and
more particularly, to a window type air conditioner which has a
simple structure, and is easy to assemble.
[0003] 2. Background of the Related Art
[0004] FIG. 1 illustrates a disassembled perspective view of a
related art window type air conditioner, referring to which the
related art window type air conditioner will be explained.
[0005] There is a front grill 3 in front (a room side) of a base
pan 1, a bottom of the air conditioner, There is an inlet 3i, a
path of a room air into the air conditioner, in a lower portion of
the front grill 3, and an outlet grill 3e in an upper portion of
the front grill 3 for discharging the air heat exchanged in the air
conditioner to the room again. There is a suction grill (not shown)
fitted to the inlet 3i and a filter (not shown) between the suction
grill and the inlet 3i. There is an air guide 7 on an inner side of
the front grill 3, to which an indoor heat exchanger 5 is mounted.
The indoor heat exchanger 5 cools down the air drawn through the
inlet 3i by means of heat exchange with an operative fluid in an
air conditioning cycle. The air guide 7 fitted on the base pan 1
partitions an inside space of the air conditioner into an indoor
side and an outdoor side. That is, the indoor side is isolated from
the outdoor side by the air guide 7, to cut off air flow and the
like. Thee is a shaft hole 7' formed in the air guide 7 to make the
indoor side and the outdoor side in communication for passing a
rotating shaft of a motor 15 which is to rotate a sirocco fan 13.
There is a brace 713 on an upper portion of the air guide 7 formed
as ONE unit with the air guide 7 for fastening shroud 18 of a fan
thereto. There is a control box storage space 8 in one side portion
of the air guide 7 for storing a control box (not shown). There is
a scroll 9 mounted inside of the air guide 7. The scroll 9 has a
flow guide surface 9g formed therein with a curvature from one side
to the other side. There is an orifice 11 fitted to a front surface
of the scroll 9, and the orifice 11 has an orifice hole 12 for
guiding air from the indoor heat exchanger 5 to THE sirocco fan 13.
There is a discharge guide 11e on top of the orifice 11 as one unit
with the orifice 11 for GUIDING the heat exchanged air to the
discharge GUIDE 3e. Middle of a rear part of the discharge guide
11e is opened, and there are coupling parts 11' at the opened part
each for coupling with a top portion of the air guide 7. There is a
finger GUARD `F` in a rear portion of the discharge GUIDE lie for
blocking touch to the sirocco fan 13. There is a projection `E` of
ESP at one side of the discharge guide 11e for blocking view to a
white colored scroll 9 from outside. As explained, there is the
discharge guide 11e on the orifice 11, the orifice 11 is inserted
between the indoor heat exchanger 5 and the sirocco fan 13 starting
from an upper portion to a lower portion, i.e., in a top-down
fashion. The sirocco fan 13 inside of the scroll 9 causes to flow
through the inlet 3i, indoor heat exchanger 5, and the orifice hole
12. The sirocco fan 13 causes air drawn through the orifice hole 12
and flowed along a circumference thereof. The an flowed along the
circumference is guided along a flow guide surface 9g and flows
toward the discharge guide 11e.
[0006] The description up to now is on the indoor side of the
window type air conditioner, and the outdoor side of the window
type air conditioner will be explained.
[0007] There is a motor 15 fitted on an outdoor side (rear side) of
the air guide 7 for rotating the sirocco fan 13 and the fan 17. The
motor 15 has a rotating shaft projected in front and rear
directions, one of which is passed through the air guide 7,
projected up to a center of the scroll 9, and coupled with the
sirocco fan 13, and the other of which on the outdoor side is
coupled with the fan 17 for drawing air from outside of the air
conditioner and passed tough the indoor heat exchanger 19 for heat
exchange, The fan 17 has a ring 17r for connecting end edges of the
blades. There is a fan shroud 18 fitted on the base pan 1 for
guiding air flow from the fan 17. The fan shroud 18 has a hole 18'
in communication with the outdoor beat exchanger 19. The outdoor
heat exchanger 19 is fitted on an outside portion of the base pan 1
opposite to the fan shroud 18. Though not shown, there are a
compressor, an expansion valve, and the like, components of an air
conditioning cycle, fitted to the outside portion. The different
components of the air conditioner are enclosed by an outer case 20
which forms outer appearance of the air conditioner. Of the window
type air conditioner, the indoor portion is place in a space for
air conditioning and the outdoor portion is placed on outside of
the room.
[0008] The operation of the air conditioner will be explained. Upon
putting the air conditioner into operation, the air conditioning
cycle comes into operation, and the motor 15 rotates the sirocco
fan 13 as well as the fan 17. According to this, room air is
provided to the indoor heat exchanger 5 through the inlet 3i. The
air is involved in a temperature drop as the air passes through and
heat exchanges with the operation fluid. The air then provided to
the sirocco fan 13 through the orifice hole 12. The air drawn into
the sirocco fan 13 is guided along a circumferential direction of
the sirocco fan 13 and discharged from the sirocco fan 13. Then,
the air is guided along a flow guide surface 9g of the scroll 9 and
provided to the discharge guide 11e. The low temperature air
provided to the discharge guide 11e is discharged into the room
through the discharge grill 3e In the meantime, in the outdoor
side, the operation for discharging a heat the operation fluid is
received from the indoor heat exchanger 5 is in progress. That is,
external air drawn by the fan 17 is heat exchanged with the
operation fluid as the air passes through the outdoor heat
exchanger 19, to discharge the heat to outside of the air
conditioner.
[0009] However, the foregoing window type air conditioner has the
following problems.
[0010] First, the related art window type air conditioner uses the
sirocco fan 13 for drawing room air. The sirocco fan designed for a
high rate of air flow has numerous short blades each curved
opposite to a direction of rotation to require the scroll 9, an
additional air guide, for forming an air flow, which causes various
problems. In detail, the air is discharged from the sirocco fan 13
in a circumferential direction throughout the flow guide surface
9g. Therefore, the air discharged to an upper stream of the flow
guide surface 9g continues to flow along the flow guide surface 9g
and involved in a pressure build up as the air goes to a
downstream, resulting to act as a resistance to rotation of the
sirocco fan 13. Moreover, as the air is guided concentrated to the
downstream portion of the flow guide surface 9g, the air flows
partial to one side of the discharge guide 11e. At the end, the air
discharge is not uniform throughout the discharge grill 3e.
[0011] Second, the discharge guide 11e assembled on the air guide 7
and the scroll 9 is formed on the orifice 11 as one unit with the
orifice 11, to required the orifice 11 to put into place after the
air guide 7 and the scroll 9 are assembled, and to require assembly
of the discharge guide 11e and the air guide on the same time with
assembly of the orifice 11. Therefore, the assembly has been very
inconvenient. Moreover, the unitized orifice 11 and discharge guide
11e put many limitations in formation of the orifice itself.
[0012] Third, the topdown fashion assembly of the orifice 11 puts
limitation to a shape of the sirocco fan 13, a counter part of the
orifice 11. In detail, the orifice 11 fitted in front of the
sirocco fan 13 is required to provide the air passed through the
indoor heat exchanger 5 to the sirocco fan 13 accurately without
leakage. Therefore, when the orifice 11 and the sirocco fan 13 are
assembled in top-down fashion, facing surfaces of the sirocco fan
13 and the orifice 11 can not but be flat to bring into contact.
Moreover, even if the facing surfaces of the orifice 11 and the
sirocco fan 13 are formed flat to bring into contact, a gap between
the orifice 11 and the sirocco fan 13 coming from different
tolerances causes air leakage,
[0013] Fourth, the discharge guide 113 formed on the orifice 11 as
one unit with the orifice 11 is weak in strength, because the
coupling parts 11' coupled with e top of the air guide 7 arc
separated from each other. Defective assembly coming from distorted
coupling parts 11' shakes during operation of the air conditioner,
to generate noise from this part.
[0014] Lastly, the air guide 7 unitized with the brace 7B and the
control box storage space 8 is not easy to form. That is, the
unitization of many components to form a large body causes
difficulty in formation of mold and production of the air guide
7.
SUMMARY OF THE INVENTION
[0015] Accordingly, the present invention is directed to a window
type air conditioner that substantially obviates one or more of the
problems due to limitations and disadvantages of the related
art.
[0016] An object of the present invention is to provide a window
type air conditioner which has a simple construction and discharge
cooled air from a discharge part uniformly.
[0017] Another object of the present invention is to provide a
window type air conditioner which can improve convenience of
assembly,
[0018] Further object of the present invention is to provide a
window type air conditioner which has an air guide, a simple
structure, and an improved strength.
[0019] Still further object of the present invention is to provide
a window type air conditioner which causes no air leakage between
indoor side components as assembly between an orifice and an air
guide that guide air flow on the indoor side is accurate.
[0020] Additional features and advantages of the invention will be
set forth in the description which follows, and in part will be
apparent from the description, or may be learned by practice of the
invention. The objectives and other advantages of the invention
will be realized and attained by the structure particularly pointed
out in the written description and claims hereof as well as the
appended drawings.
[0021] To achieve these and other advantages and in accordance with
the purpose of the present invention, as embodied and broadly
described, the window type air conditioner includes an indoor heat
exchanger for heat exchange with room air, an outdoor heat
exchanger for heat exchange with external air, an air guide for
partitioning a space for fitting the indoor heat exchanger and a
space for fitting the outdoor heat exchanger, a turbo fan fitted
inside of the air guide directly, for discharging the room air heat
exchanged as the room air passes through the indoor heat exchanger
into the room, again, and a fan fitted to outside of the air guide
for discharging the external air heat exchanged as the external air
passes through the outdoor heat exchanger, again.
[0022] The air guide includes a partition plate having the turbo
fan fitted in a central portion and partitioning the indoor heat
exchanger and the outdoor heat exchanger, and sidewall parts at
both sides of the partition plate substantially perpendicular to
the partition plate.
[0023] Preferably, the window type air conditioner further includes
an orifice between the indoor heat exchanger and the turbo fall for
effective guidance of the air passed through the indoor heat
exchanger. The orifice includes a partition wall having an orifice
hole formed therein for passing the air therethrough, and coupling
parts formed at both sides of, and substantially perpendicular to
the partition wall having one side coupled to both ends of the
indoor heat exchanger, and the other end coupled to both ends of
the air guide.
[0024] Preferably, the window type air conditioner further includes
a discharge guide on the air guide for effective guide of the room
air from the turbo fan to the room. The discharge guide includes a
horizontal member having a discharge par; and a partition part at a
rear end of, and substantially perpendicular to the horizontal
member for partitioning an indoor side and an outdoor side.
[0025] Thus, the window type air conditioner of the present
invention permits to dispense with separate air flow means, such as
the scroll in the related art, and maintain a uniform flow rate
owing to the use of the turbo fans and to have a simple air
conditioner structure, and improved strength and assembly work.
[0026] In another aspect of the present invention, there is
provided a window type air conditioner including an indoor heat
exchanger for heat exchange with room air, an outdoor heat
exchanger for heat exchange with external air, a lower air guide
for separating a space the indoor heat exchanger is mounted therein
from a space the outdoor heat exchanger is mounted therein, an
orifice fitted at a front of the lower air guide for guiding the
air passed through the indoor heat exchanger to an inside of the
lower air guide, an upper air guide assembled to a top of the lower
air guide to make surface to surface contact with the orifice and
the upper air guide, a turbo fan directly fitted to an inside of
the lower air guide for discharging the air having a heat exchanged
as the air passes through the outdoor heat exchanger into a room
again, and a fan fitted outside of the lower air guide for
discharging the air having a heat exchanged as the air passes
through the outdoor heat exchanger to outside of room again.
[0027] The orifice includes an orifice hole formed at a central
portion thereof for guiding air flow, and a seating step formed
along top thereof with a step, and the upper air guide formed to
match to the seating step, such that the upper air guide includes a
seating ridge having a lower end for seating on the seating step
and a side for making a close contact with a side of the seating
step.
[0028] The seating step formed in top of the orifice includes a
round part, and the upper air guide includes a round part at a
lower surface thereof matched to the round part of the seating step
in the orifice and insertion guides formed on the round part on the
lower surface of the upper air guide matched to the round part of
the upper air guide for guiding insertion of the seating step and
supporting the seating step.
[0029] The upper air guide includes end insertion guides in
positions matched to the seating ridge for guiding insertion of
both ends of top of the orifice, and maintaining a coupled state
firmly after the coupling.
[0030] In further aspect of the present invention, there is
provided a window type air conditioner including an indoor heat
exchanger for heat exchange with room air, an outdoor heat
exchanger for heat exchange with external air, a lower air guide
for separating a space the indoor heat exchanger is mounted therein
from a space the outdoor heat exchanger is mounted therein, an
orifice fitted at a front of the lower air guide for guiding the
air passed through the indoor heat exchanger to an inside of the
lower air guide, an upper air guide assembled to a top of the lower
air side to make surface to surface contact with the orifice and
the upper air guide, leakage preventing means provided at matched
positions of a rear wall of the lower air guide aid a rear wall of
the upper air guide, the rear wall of the lower air guide being
provided for partitioning an indoor side and an outdoor side, and
the rear wall of the upper air guide is provided for partitioning
an indoor side and an outdoor side, a turbo fan directly fitted to
an inside of the lower air guide for discharging the air having a
heat exchanged as the air passes through the outdoor heat exchanger
into a room again, and a fan fitted outside of the lower air guide
for discharging the air having a heat exchanged as the air passes
through the outdoor heat exchanger to outside of room again.
[0031] The leakage preventing means includes a holding slot opened
in a horizontal direction in a central top surface of the rear wall
of the lower air guide, a holding piece projected backward from the
rear wall of the tipper air guide at a position matched to the
holding slot for being held by the holding slot in the lower air
guide, a sealing ridge extended along the top of the rear wall of
the lower air guide, an insertion slot in a bottom surface of the
rear wall of the upper air guide at a position matched to the
sealing ridge for insertion of the sealing ridge thereto,
reinforcing ribs at top of the control box seating part opposite to
each other, and insertion fibs at positions matched to the
reinforcing ribs for inserting between the reinforcing ribs.
[0032] The upper air guide includes opposite supporting ribs on one
side of a bottom surface thereof for inserting into the pipe
seating part of the lower air guide to support between the control
box seating part and one sidewall of the lower air guide.
[0033] The leakage preventing means further includes a sill
projected from a lower surface of, and extended in left and right
directions on the lower air guide, an overlap part having a seating
part formed as a step to make a surface to surface contact with the
sill for seating on a top of the sill, and a stopper for guiding
the overlap part toward the sill, and supporting the overlap part
toward the sill when coupled,
[0034] The leakage preventing means further includes sealing plates
formed on both sides of the orifice in up and down directions for
making close contact with sides of the lower air guide, and a
sloped sealing strip formed on a rear surface of the orifice in a
form to be matched to guide surface formed in an inside space of
the lower air guide for making a surface to surface contact with
the guide surface.
[0035] The leakage preventing means further includes catch
projections formed on both sides of the lower air guide, catch
holes formed in the sealing plates of the orifice to be matched
with the catch projections, and another catch projections on a back
surface of the orifice opposite to the sealing plates each with a
gap to the sealing plate the same with a thickness of the sidewall
of the lower air guide.
[0036] The leakage preventing means further includes toes on lower
ends of the orifice for covering both ends of catches on the lower
air guide to prevent air leakage.
[0037] The orifice further includes sealing ridges projected
forward from both sides of the orifice for making close contact
with channels on both sides of the indoor heat exchanger.
[0038] The sealing ridge includes a plurality of reinforcing
stoppers for securing straightness of the sealing ridges and
defuring a mounting position of the indoor heat exchanger, to
prevent gap formation between the channel of the indoor heat
exchanger and the sealing ridge.
[0039] It is to be understood that both the foregoing general
description and the following detailed description are exemplary
and explanatory and are intended to provide further explanation of
the invention as claimed.
BRIEF DESCRIPTION OF THE DRAWINGS
[0040] The accompanying drawings, which are included to provide a
further understanding of the invention and are incorporated in and
constitute a part of this specification, illustrate embodiments of
the invention and together with the description serve to explain
the principles of the invention,
[0041] In the drawings:
[0042] FIG. 1 illustrates a disassembled perspective view of a
related art window type air conditioner;
[0043] FIG. 2 illustrates a disassembled perspective view of a
window type air conditioner in accordance with a first preferred
embodiment of the present invention;
[0044] FIG. 3 illustrates a section across line I-I;
[0045] FIG. 4 illustrates a perspective view of the turbo fan in
FIG. 2;
[0046] FIG. 5 illustrates a front view of the turbo fan in FIG.
4;
[0047] FIG. 6 illustrates a section of the turbo fan in FIG. 4;
and,
[0048] FIG. 7 illustrates a detailed perspective view of the
discharge guide in FIG. 2;
[0049] FIG. 8 illustrates a disassembled perspective view of an
orifice and an air guide in a window type air conditioner in
accordance with a second preferred embodiment of the present
invention;
[0050] FIG. 9 illustrates a perspective back view of the orifice in
FIG. 8;
[0051] FIG. 10 illustrates a perspective bottom view of the upper
air guide in FIG. 8;
[0052] FIG. 11 illustrates a section across II-II in FIG. 8 showing
a state an overlap portion of the orifice and a setting end of the
lower air guide are coupled;
[0053] FIG. 12 illustrates a section across III-III in FIG. 9
showing a state an overlap portion of the orifice is set between a
catch rib and a setting end of the lower air guide:
[0054] FIG. 13 illustrates a section across IV-IV in FIG. 9 showing
a state a setting step portion of the orifice and a setting
projection portion of the upper air guide are assembled;
[0055] FIG. 14 illustrates a section across V-V in FIG. 8 showing a
state a catch piece of the upper air guide and a holding slot in
the lower air guide are assembled;
[0056] FIG. 15 illustrates a section across VI-VI in FIG. 8 showing
a state a sealing ridge of the lower air guide and an insertion rib
of the upper air guide are assembled;
[0057] FIG. 16 illustrates a section across VII-VII in FIG. 8
showing a state an insertion rib of the lower air guide and a
reinforcing rib of the upper air guide are assembled; and,
[0058] FIG. 17 illustrates a section across VIII-VIII in FIG. 8
showing a state a pipe setting portion of the lower air guide and a
supporting rib of the upper air guide are assembled.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
[0059] Reference will now be made in detail to the preferred
embodiments of the present inventions examples of which are
illustrated in the accompanying drawings, FIG. 2 illustrates a
disassembled perspective view of a window type air conditioner in
accordance with a first preferred embodiment of the present
invention, referring to which an overall system of the window type
air conditioner in accordance with a first preferred embodiment of
the present invention will be explained.
[0060] There is a base pan 30, a base of a window type air
conditioner, on which different components of the air conditioner
are fitted. There is a front grill 35 at a front (indoor side) of
the base pan 30 having an inlet 36 in a lower portion and a
discharge grill 37 in an upper portion. There is an indoor heat
exchanger 40 opposite to the inlet 36 in rear of the font grill 35,
and an orifice 45 in rear of the indoor heat exchanger 40 for
guiding air passed through the indoor heat exchanger 40. The
orifice 45 has an orifice hole 47 at a central portion for guiding
the air passed through the indoor heat exchanger 40 to the turbo
fan 60,
[0061] The orifice 45 will be explained in detail with reference to
FIGS. 2 and 3.
[0062] The orifice 45 has a rectangular partition wall 46 for
partitioning the indoor heat exchanger 40 and the turbo fan 60, and
an orifice hole 47 in a central portion of the partition wall 46
for guiding air passed through the indoor heat exchanger 40 to the
turbo fan 60. There is a nozzle portion 47' projected from an edge
of the orifice hole 47 for insertion in the turbo fan 60. The
partition wall 46 has first sidewalls 48 and 48' and second side
walls 49 and 49' at both ends, respectively. The first sidewalls 48
and 48' coupled to both ends of the indoor heat exchanger 40 for
preventing air leakage from the vicinity of the orifice 45 and
supporting and fastening the indoor heat exchanger 40 and
components around the indoor heat exchanger 40. The second
sidewalls 49 and 49' formed opposite to the first sidewalls 48 and
48' is coupled to the air guide 50 to form a flow path for the air
guide 50. The orifice 45 is fitted to a central portion of a
supporting plate 52 of the air guide 50, for partitioning an inside
of the air conditioner into an indoor side and an outdoor side of
the air conditioner.
[0063] A method for assembling the orifice 45 will be
explained.
[0064] The orifice 45 is fitted to the turbo fan 60 for obtaining a
maximum efficiency of the turbo fan 60. That is, the nozzle portion
47' of the orifice 45 is inserted toward an inner side of the
shroud 66 for preventing leakage between the orifice 45 and the
turbo fan 60. For film coupling between the orifice 45 and the
turbo fan 60, no structure is formed on top portion of the orifice
45, for permitting insertion of the orifice 45 from the front of
the turbo fan 60, or to use the top-down fashion or sliding fashion
in assembly of the orifice 45 to the turbo fan 60. In the sliding
fashion, the orifice 45 is inserted from top to bottom between the
turbo fan 60 aid the indoor heat exchanger 40. In this instance,
the nozzle portion 47' in the orifice required to be spaced from
the turbo fan 60 for preventing interference. Then, when the nozzle
portion 47' comes to face the turbo fan 60, the orifice 45 is
pressed toward the turbo fan 60 so that the nozzle portion 47' of
the orifice is inserted into inner side of the shroud 66 of the
turbo fan 60. Since there is no other structure on top of the
orifice 45, the assembly can be done in a variety of methods, to
permit a variety of methods and sequences in assembly of the
orifice 45, that pets easy design of the orifice 45 and related
components.
[0065] The air guide 50 will be explained in detail with reference
to FIG. 2.
[0066] The air guide 50 includes a partition plate 51 for
partitioning the indoor side and outdoor side, and has a width
fixed to correspond to a width of the indoor heat exchanger 40. The
partition plate 51 has a motor setting pan 51' projected forward in
a central portion for setting the motor 55 therein, wherefrom one
side of the rotation shaft of the motor 55 is passed and projected
to the indoor side. There is a supporting plate 52 formed as a twit
with the partition plate 51. The supporting plate 52 is set to the
base pan 30, and the indoor heat exchanger 40 is set on the
supporting plate 52, Detailed explanation of the setting of the
indoor heat exchanger 40 will be omitted. A floor surface formed as
the partition plate 51 and the supporting plate 52 meet together is
a fan setting floor 53, a floor surface of a space the turbo fan 60
is provided therein The air guide 50 has a sidewall 54 at one side
in a vertical direction along a side of the partition plate 51 for
forming the space the turbo fan 60 is set therein in cooperation
with the second sidewall 49 of the orifice 45. There is the motor
55 on the outdoor side of the air guide 50 for driving the turbo
fan 60 and the fan 70, with a rotating shaft of the motor 55
projected in front and rear direction for rotating the turbo fan 60
and the fan 70 on the same time. Of course, the motor 55 may be
fitted on an additional bracket depending on design condition of
the air conditioner. The turbo fan 60 fitted to the air guide 50
provide a power for drawing room air through the inlet 36, passing
the room air through the indoor heat exchanger 40 for heat
exchange, and discharge the room air to the room. In tie present
invention, a turbo fan 60 is used instead of the sirocco fan, that
requires no separate scroll for guiding the air flow to permit an
inside structure of the air conditioner relatively simple.
[0067] The turbo fan 60 will be explained with reference to FIGS.
2.about.6.
[0068] The turbo fan 60 has a hub 62 in a central portion for
connection to a rotating shaft of the motor 55. There are a
plurality of blades 64 fitted along an end portion of a radial
extension of the hub 62 perpendicular to a surface of the radial
extension. The blade 64 has a blade outlet angle .beta.2 smaller
than 90.degree., a ratio of outside diameter to inside diameter
d1/d2 less than 0.8, a backward curved form, a structure in a
direction of rotating stream line, and a larger inlet width W1 at
which the air is started to be guided than an outlet width W2.
There is a shroud 66 on upper portions of the blades 64 as a unit
with the blades 64, to connect all the blades 64 along a side
widths of the blades 64 become smaller, The shroud 66 guides the
air flow along the blades 64, so that the air passing trough
adjacent blades is discharged at a desired pressure. The blade
inlet angle .beta.1 at the hub 62 side and the blade outlet angle
.beta.2 at the shroud 66 side may be formed differently, to form a
uniform flow between the blades 64 to improve noise
characteristics. On the other hand, as shown in FIG. 2, the fan 70
driven by the motor 55 is provided in rear(outdoor side) of the air
guide 50, with a ring 72 fitted to an outer end of the fan 70 for
splashing condensate on a floor of the base pan 30 to the outdoor
heat exchanger 80 during rotation of the fan 70. There is a in
shroud 75 in rear of the fan 70 for guiding an air flow formed by
the fan 70. The fan shroud 75 is fitted on the base pan 30 and has
a through hole 76 in a central portion. There is the outdoor heat
exchanger 80 in rear of the shroud 75 fitted on the base pan
30.
[0069] The discharge guide 85 fitted on top of the air guide 50 for
guiding the air from the turbo fan 60 to the discharge grill 37
will be explained in detail with reference to FIGS. 2 and 7.
[0070] The discharge guide 85 includes a horizontal member 89, a
partition wall 86' formed at a rear end of the horizontal member 89
substantially perpendicular thereto to partition the indoor side
and the outdoor side, and sidewalls 81 and 82 on both sides of the
horizontal member perpendicular to the horizontal member. The
horizontal member 90 has a discharge part 87 in communication with
an inside of the air guide 50. There is a finger guide 88 in front
of the discharge part 87 for preventing touch to the turbo fan 60.
The discharge guide 85 is fitted on top of the orifice 45 and the
air guide 50. The discharge guide 85, the orifice 45 and the air
guide 50 are coupled as one side is inserted to the other side.
Accordingly, the discharge guide 85 serves to couple the orifice
45, the air guide 50 and the fan shroud 75, together.
[0071] Thus, by providing the discharge guide 85 separate from
other components for guiding air flow formed by the turbo fan 60 of
the window type air conditioner to the discharge grill 37, strength
of the discharge guide is made stronger and assembly with
neighboring components is made perfect. That is, the discharge
guide 85 is formed separate from other components, such as the
orifice 45 and the air guide 50, and the partition wall 86' is
provided thereto both for partitioning the indoor side and the
outdoor side and reinforcing the strength of the discharge guide
itself. Moreover, the discharge guide 85 is designed to be
positioned on, and inserted into the orifice 45 and the air guide
50 so that the discharge guide 85 serves to hold many components
provided below the discharge guide, firmly. The reinforcement of
entire discharge guide 35 by connecting both ends of the discharge
guide 85 with the partition wall 86' permits to eliminate an upper
portion 8' of the control box storage part in the air guide 50
formed under left portion of the discharge guide 85. The use of
turbo fan 60 permits tat the white colored scroll can be dispensed
with so as not to require the additional projection, that makes the
structure simple. Finally, since the discharge guide 85 is separate
to permit to assemble at the last after other components, such as
the air guide 50, the indoor heat exchanger 40, the orifice 45, the
motor 55, the fan 70, the fan shroud 75, and the like are fitted,
the assembly is simple, In disassembly too, access to components
under the discharge guide 85 is easy when only the discharge guide
85 is disassembled.
[0072] The foregoing various components are protected from outside
by the outer case 90. The outer case 90 has air vent grills 92 for
air flow in/from the air conditioner by the fan 70. The related art
injection molded components, such as the orifice 45, the air guide
50, the fan shroud 75, the discharge guide 85, and the like, are
formed by hyperfine foaming of polymer materials. In the hyperfine
foaming, a fluid in a supercritical state is supplied to the
polymer material before injection molding when relatively fine
uniform foams are formed therein. The product formed by such a
process has relatively small uniform foams inside of the product,
to make the product light and strong, and enhance noise protection
and insulating properties.
[0073] The operation of the air conditioner of the present
invention having the foregoing system will be explained, taking a
cooling operation as an example.
[0074] Upon putting the a conditioner into operation, the turbo fan
60 is operated to draw, room air through inlet 36 in the front
grill 35, The draw air is heat exchanged at the indoor heat
exchanger 40 into a low temperature, low humidity air, and passes
through the orifice hole 46. Then, the air is drawn toward the
rotation shaft of the turbo fan 60, flows along the blade 64, and
discharged in a circumferential direction the turbo fan 60 is
rotated. The shroud 66 on the turbo fan 60 guides the air to flow
between adjacent blades 64, to be able to form an air flow even if
there is no separate air flow guide and to discharge the air from
the turbo fan 60 directly, and provide the air to the entire
discharge part 87 above the turbo fan 60. The air flow discharged,
not from the direction of the discharge part 87, but from a lower
portion of the air guide 50, is also discharged along the direction
of rotation of the turbo fan 60 and provided to the discharge part
87. The air thus discharged to the discharge part 87 is provided to
the discharge guide 85. That is, the air flows to the discharge
guide 85 through the discharge part 87, guided along the horizontal
member 89, provided to the discharge gill 37, and therefrom into
the room. The air discharged Throughout the discharge part 87 is
also discharged throughout the entire discharge grill 37.
[0075] Since a heat exchange process at the outdoor heat exchanger
80 is similar to the case of the related art, explanation of which
will be omitted.
[0076] As has been explained, the window type air conditioner in
accordance with the first preferred embodiment of the present
invention has the following advantages.
[0077] First, since the shroud on the turbo fan itself serves to
form an air flow, requiring no further structure for forming the
air flow, a structure of the air conditioner can be made simple.
Since partial air flow concentrated to one side is prevented the
air can be discharged into the room throughout the entire discharge
grill. Since the air flow formed by the turbo fan does not
interfere rotation of the turbo fan, with reduction of factors that
act as resistance to the turbo fan rotation, power consumption of
the turbo fan can be reduced, Second, the formation of no other
structure on the orifice permits to employ a variety of assembly
methods and sequences. The coupling between the orifice and the
turbo fan in a fashion one side is inserted into an inside of the
other prevents air leakage therethrough, thereby maximizing a turbo
fan efficiency.
[0078] Third, by separating the discharge guide from other
components and reinforcing the discharge guide itself a system of
other related components is simplified. Accordingly, the simplified
components of the air conditioner permit easy assembly and
disassembly at large. And, component design and production are made
simple. The separation of the discharge guide, which permits
assembly or disassembly of the discharge guide independent from
those components fitted under the discharge guide, permits easy
access to the other components once the discharge guide is removed,
thereby permitting an easy maintenance of the air conditioner the
discharge guide strengthens the air conditioner on the whole as the
discharge guide couples components under the discharge guide
together after all the components are fitted.
[0079] Second embodiment orifice and air guide of the air
conditioner of the present invention will be explained with
reference to the attached drawings.
[0080] At first, the orifice 500 will be explained.
[0081] Referring to FIGS. 8.about.13, the orifice 500 has an
orifice hole 510 in a central portion for guiding air having a heat
exchanged at an indoor heat exchanger to a turbo fan (not shown)
inside of a lower air guide (600). There is a sealing ridge 520 and
520' extended throughout a height of the orifice 500 and projected
forward from each end of the orifice 500, for bringing opposite
channels of the indoor heat exchanger into close contact with outer
surfaces of the sealing ridges 520 and 520'. The sealing ridge 520
or 520' has a toe 530 or 530' for covering both ends of a catch 670
and 670' on the lower air guide 600 to prevent air leakage. The
catches 670 and 670' are provided for inserting lower ends of the
indoor heat exchanger. The sealing ridges 520 and 520' have a
plurality of reinforcing stoppers 540 for securing straightness of
the sealing ridges 520 and 520' and positioning the indoor heat
exchanger. That is, the reinforcing stoppers 540 reinforce strength
of the sealing ridge 520 and 520' for preventing formation of gaps
between the indoor heat exchanger and the channels, There is an
overlap part 550 extended in left and right directions at a lower
end of the orifice 500, for making a close contact with a sill 680
of the lower air guide 600, which will be explained, later. The
overlap part 550 has a seating part 550' formed in a width
direction at a lower surface thereof for making a close contact
with the sill 680, which is shown the most clearly in FIG. 11.
Next, there is a sealing plate 570 or 570' projected backward from
each side of the orifice 500 and extended from top to bottom,
wherein the plate 570 at one side thereof is extended only down to
halfway, for making close contact with sidewalls 650 of the lower
air guide 600. Tie sealing plate 570 or 570' has a catch hole 580
for inserting a catch projection 650' on the lower air guide 600.
There is another catch projection 590 on a back surface of the
orifice 500 adjacent to the catch hole 580 for guiding insertion of
the orifice 500 into the lower air guide 600, and falling off the
lower air guide 600 after the orifice 500 is coupled to the lower
air guide 600. The catch projection 590 is formed with a gap to the
sealing plate 570 or 570' and has a guide slope 590' for guiding a
fore end of the sidewall 650 of the air guide 600. There is a
sloped sealing strip 570" having a curvature corresponding to a
curvature of the guide surface on a back surface of the orifice 500
for making a close contact with a guide surface 610' of the air
guide 603 to prevent leakage of air. There is a seating step 590s
extended in left and right directions on a top of the orifice 500
for coupling with an upper air guide 700 to be explained, later.
The seating step 590s has a round part 590r projected upward at a
position corresponding to the orifice 510.
[0082] The lower air guide 600 will be explained. The lower air
guide 600 has a flow path forming part 610, a control box seating
part 620, and a pipe seating part 630. The flow path forming part
610 has a guide surface 610' formed along both sides thereof, and
is a part for accommodating a turbo fan which forms an air flow in
the indoor side, The air guide 600 has a rear wall 640 which forms
a rear surface of the air guide 600 and serves to partition an
inside of the air conditioner into the indoor side and the outdoor
side. There is a motor hole 640' for mounting a motor (not shown)
formed in the rear wall 640. The control box seating part 620 is
used of placing a control box (not shown) for controlling operation
of the air conditioner. There is a holding slot piece 642 having a
holding slot 642a on a center of top of the rear wall 640, and a
sealing ridge 643 extended on both sides of the holding slot piece
642 along the top of the rear wall 640, There are reinforcing ribs
622 and 623 at rear of top of the control box seating part 620
opposite and parallel to, and distanced from each other. That is,
the reinforcing ribs 622 and 623 are formed at rear of top of the
control box seating part 620 in a lateral direction. Sides of the
lower air guide 600 form sidewalls 650, The sidewall 650 has a
catch projection 650' to be inserted in the catch hole 580 formed
at a corresponding position. Though a backside structure of the
sidewall 650 is not shown in the drawing, there is also a catch
projection 650' on an outer side of the flow part forming part 610
adjacent to the pipe seating part 630. There is a fastening hole
651 at top of the sidewall 650 for making a firm fastening with the
upper air guide 700. There is a drain part 660 at lower part of
front of the lower air guide 600 for draining condensate formed in
the indoor heat exchanger. The drain part is formed between two
ribs 661 supporting a bottom of the indoor heat exchanger. A bottom
surface of the drain part 660 is sloped from one side to the other
side for easy of draining. The catches 670 and 670' are projected
from a floor of the lower air guide 600 at both ends of the drain
part 660 for placing channels of the indoor heat exchanger thereon.
The sill 680 is formed in a lateral direction extended in left and
right directions between the drain part 660 and the rear wall 640
for seating the seating part 550' of the orifice 500. The sill 680
forms a boundary that separates a space for mounting the indoor
heat exchanger and a space for mounting the turbo fan. There is a
stopper 690 on a drain part 660 side of the sill 680 on middle of
the sill 680 with a gap to the sill 680. The stopper 690 has a
curved part 690' at one side of top of the stopper 690 facing the
sill 680 for guiding insertion of the overlap part 550 of the
orifice 500. The stopper 690 guides the center of the overlap part
550 at a lower part of the orifice 500, and restrains the overlap
part 550 in an assembled state so that the overlap part 550 does
not fall off its position, A relative structure of the stopper 690
and the overlap part 550 is shown in FIG. 12.
[0083] Next the upper air guide 700 fitted on the top of the lower
air guide 600 will be explained.
[0084] The upper air guide 700, provided for guiding the air passed
through the lower air guide to a space to be air conditioned again,
has a floor plate 71 0 to be positioned on the top of the lower air
guide 600. The floor plate 710 has a communication part 720 for
facilitating communication between an inside of the lower air guide
600 and the upper air guide 700. The communication part 720 serves
to guide the air passed through the lower air guide 600 to the
space to be air conditioned. There is a rear wall 740 at rear of
the floor plate 710, in correspondence to the rear wall 640 of the
lower air guide 600 for separating indoor side from an outdoor
side. There are side walls 750 and 750' formed at both ends of the
rear wall 740. A front and a top between the sidewalls 750 and 750'
are opened. The reference numerals 760 and 760' represent fastening
holes for fastening the upper air guide wit the lower air guide
600, wherein the fastening hole 760' is formed at a position
corresponding to a position of the fastening hole 621 in the lower
air guide, and he fastening hole 760 in a bottom of the sidewall
750 of the upper air guide 700 is formed at a position
corresponding to a position of the fastening hole 651 of the lower
air guide. There is provision on the bottom of the floor plate 710
for fastening with he orifice 500. At firsts there is a long
downward seating ridge 770 on an edge of one side of the
communication part 720 at a position corresponding to the top of
the orifice 500, for seating on the seating step 590s in the
orifice 500. The seating ridge 770 has a round part 770r in
correspondence to the round part 590r. There is an insertion guide
780 at a position corresponding to the round part 770r. The
insertion guide 780, having a function identical to the stopper
690, guides insertion of the upper air guide 700 and hold the
orifice 500 in place in a fastened state. The foregoing structure
is shown in FIG. 13. As shown in FIG. 10, there are end insertion
guides 780' in the vicinity of the seating ridge 770 for guiding
insertion of both ends of the orifice when the upper air guide 700
is set on the orifice 500. The end insertion guides 780' guides
coupling between the upper air guide 700 and the orifice 500 by
guiding both sides of top of the orifice, and maintains a coupled
state firmly after the coupling. Next, there is a guide ridge 790
on the bottom of the upper air guide 700 such that the guide ridge
790 is closely fitted to a front surface and both sides of the
indoor heat exchanger for supporting the indoor heat exchanger.
There is an insertion slot 765 along a bottom surface of the rear
wall 740 of the upper air guide 700 for inserting the sealing ridge
643 of the lower air guide 600, The insertion slot 765 is extended
in a lateral direction on both sides of a holding piece 725 to be
inserted in the holding slot 642a to be matched to the sealing
ridge 643. A state of coupling between the holding slot 642a in the
holding slot piece 642 and the holding piece 725 is best shown in
FIG. 14, and a state of coupling between the insertion slot 765 and
the sealing ridge 643 is best shown in FIG. 15. There are
supporting ribs 775 and 775, on a bottom surface of the upper air
guide 700 at positions corresponding to the pipe seating part 630
in parallel to each other for supporting inside walls on both sides
of the pipe seating part 630. As shown in FIG. 17, pipes connecting
components of a heat exchanging cycle fitted on the indoor side and
the outdoor side are passed through the supporting ribs 775 and
775'. Next, there are insertion ribs 785 and 785' on a bottom
surface of the upper air guide 700 at positions corresponding to
the control box seating part 620 for inserting between the
reinforcing ribs 622 and 623. The coupling between the reinforcing
ribs 622 and 623 and the inserting ribs 785 and 785' is best shown
in FIG. 16.
[0085] The assembly and work of the window type air conditioner
having an orifice and air guides in accordance with a second
preferred embodiment of the present invention will be
explained.
[0086] First, coupling of the orifice 500 to the lower air guide
600 will be explained. First, bottom of the orifice 500 is inserted
between the sill 680 of the lower air guide 600 and the stopper
690, to seat the seating part 550' on top of the sill 680, when the
overlap part 550 is guided by the curved part 690' of the stopper
690 into an accurate position When the seating part 550' is seated
on the sill 680, the toes 530 and 530' are placed on both ends of
the catches 670 and 670', hereby preventing leakage. Next, the
catch projection 650' on the sidewall 650 is inserted into the
catch hole 580 in the sealing plates 570 and 570' at both sides of
the orifice 500, by pressing a top of the orifice 500 toward the
lower air guide 600, when the sidewalls 650 are guided by the guide
slope 590' formed at the catch projections 590 on the orifice 500,
to induce an accurate coupling between them. The catch projections
590 hold the orifice in position after the orifice 500 and the
lower air guide 600 are coupled, Thus, once the catch projections
650' are inserted in the catch holes 580 respectively, the sealing
plates 570 and 570' come into close contact with outer surface of
the sidewalls 650, to prevent leakage between the orifice 500 and
the lower air guide 600. On the other hand, the sloped sealing
plate 570" of the orifice 500 makes a close contact with the guide
surface 610' on one side of the lower air guide 600, to prevent
leakage. The sloped sealing strip 570" is provided because the
sealing plate 570 is formed down to a halfway of a height of the
orifice 500.
[0087] Next, coupling of the upper air guide 700 and the lower air
guide 600, and coupling of the upper air guide 700 and the orifice
500, which separate indoor side from the outdoor side and guiding
indoor side air flow will be explained.
[0088] First, a structure formed in a top portion of the rear wall
640 of the lower air guide 600 and a structure formed in a lower
portion of the rear wall 740 of the upper air guide 700 are
coupled, together. That is, the holding piece 725 of the upper air
guide 700 is inserted into the holding slot 642a in the holding
slot piece 642 on the lower air guide 600, when the holding piece
725 is inserted in the holding slot piece 642 with a slope, but not
fully into the holding slot 642a. Under this state, a fore end of
the upper air guide 700 is pressed centered on a middle of tie
holding piece 725, such that the upper air guide 700 is set on the
lower air guide 600 as the sealing ridge 643 on the lower air guide
700 is inserted into the insertion slot 765 in the bottom of the
upper air guide 700 as shown in FIG. 15. The supporting ribs 775
and 775' are brought into close contact with inside walls of the
pipe seating part 630, into a state as shown m FIG. 17. The
insertion ribs 785 and 785' are inserted into the reinforcing ribs
622 and 623, into a state as shown in FIG. 16. On the other hand,
when the fore end of the upper air guide 700 is pressed centered on
the holding piece 725 such that the upper air guide 700 is set on
the top of the lower air guide 600, the upper air guide 700 and the
lower air guide 600 are assembled as the seating step 590s at top
of the orifice 500 is guided by the insertion guides 780, and both
ends of the orifice 500 are guided by the end insertion guides
780'. That is, the seating ridge 770 is set on the seating step
590s, bringing a step surface of the seating step 590s into close
contact with a side surface of the seating ridge 770, to make a
surface to surface contact between the step surface and the side
surface, thereby preventing leakage and relative bending. In this
instance, the round part 770r of the seating ridge 770 is set on
the round part 590r of the seating step 590s. The insertion guides
780 sustain the seating step 590s of the orifice 500 to be in close
contact with the seating ridge 770. Both ends of top of the orifice
500 are supported in side directions of the seating ridge 770 by
the end insertion guides 780'. Accordingly, the coupling between
the orifice 500 aid the upper air guide 700 are made firm enough to
prevent leakage and relative bending. Upon the upper air guide 700
is set on the lower air guide 600 and the orifice 500, fastening
screws (not shown) are fastened into the fastening holes 651 and
621 through the fastening holes 760 and 760', for positive coupling
of the lower air guide 600, the upper air guide 700 and the orifice
500.
[0089] The second embodiment of the present invention has the
following advantages.
[0090] The structure of orifice fitting in the window type air
conditioner in accordance with a second preferred embodiment of the
present invention can prevent leakage as the orifice, the upper air
guide and the lower air guide make surface to surface contact, and
can prevent relative bending between them by a structure designed
to make insertion guide and reinforcement.
[0091] It will be apparent to those skilled in the art that various
modifications and variations can be made in the window type air
conditioner of the present invention without departing from the
spirit or scope of the invention. Thus, it is intended that the
present invention cover the modifications and variations of His
invention provided they come within the scope of the appended
claims and their equivalents.
* * * * *