U.S. patent application number 16/637917 was filed with the patent office on 2020-07-30 for indoor unit of air-conditioning apparatus.
The applicant listed for this patent is Mitsubishi Electric Corporation. Invention is credited to Hiroyuki TAKADA.
Application Number | 20200240676 16/637917 |
Document ID | 20200240676 / US20200240676 |
Family ID | 66173212 |
Filed Date | 2020-07-30 |
Patent Application | download [pdf] |
United States Patent
Application |
20200240676 |
Kind Code |
A1 |
TAKADA; Hiroyuki |
July 30, 2020 |
INDOOR UNIT OF AIR-CONDITIONING APPARATUS
Abstract
An indoor unit includes a lateral airflow adjusting unit that
adjusts in a lateral direction, the angle of air that is blown from
an air outlet. The lateral airflow adjusting unit includes a
plurality of lateral airflow adjusting plates that are arranged in
a blowout flow passage at defined intervals in the lateral
direction, and a drive device that includes a drive motor and
swings the plurality of lateral airflow adjusting plates with power
generated by the drive motor. The blowout flow passage causes a
heat exchanger and the air outlet to communicate with each other. A
casing of the indoor unit includes an accommodating chamber that is
isolated from the blowout flow passage and communicates with a
suction flow passage that causes an air inlet and the heat
exchanger to communicate with each other. The drive motor is
accommodated in the accommodating chamber.
Inventors: |
TAKADA; Hiroyuki; (Tokyo,
JP) |
|
Applicant: |
Name |
City |
State |
Country |
Type |
Mitsubishi Electric Corporation |
Tokyo |
|
JP |
|
|
Family ID: |
66173212 |
Appl. No.: |
16/637917 |
Filed: |
October 18, 2017 |
PCT Filed: |
October 18, 2017 |
PCT NO: |
PCT/JP2017/037636 |
371 Date: |
February 10, 2020 |
Current U.S.
Class: |
1/1 |
Current CPC
Class: |
F24F 1/0011 20130101;
F24F 1/0018 20130101; F24F 1/0063 20190201; F24F 2013/1433
20130101; F24F 13/32 20130101; F24F 2013/205 20130101; F24F 13/20
20130101; F24F 13/1426 20130101 |
International
Class: |
F24F 13/14 20060101
F24F013/14; F24F 13/20 20060101 F24F013/20; F24F 13/32 20060101
F24F013/32; F24F 1/0011 20060101 F24F001/0011; F24F 1/0018 20060101
F24F001/0018; F24F 1/0063 20060101 F24F001/0063 |
Claims
1. An indoor unit of an air-conditioning apparatus, comprising: a
casing having an air inlet and an air outlet that are provided as
openings formed in a lower surface portion of the casing; a fan
housed in the casing and configured to suck air in an
air-conditioned space from the air inlet into the casing and blow
the air from the air outlet; a heat exchanger housed in the casing
and configured to cause heat exchange to be performed between
refrigerant that flows in the heat exchanger and the air sucked
into the casing; and a lateral airflow adjusting unit configured to
adjust in a lateral direction, an angle of the air that is blown
from the air outlet, wherein in the casing, a suction flow passage
and a blowout flow passage are provided, the suction flow passage
causing the air inlet and the heat exchanger to communicate with
each other, the blowout flow passage causing the heat exchanger and
the air outlet to communicate with each other, the lateral airflow
adjusting unit includes a plurality of lateral airflow adjusting
plates arranged in the blowout flow passage at defined intervals in
the lateral direction, and a drive device including a drive motor
and configured to swing the plurality of lateral airflow adjusting
plates with power generated by the drive motor, the casing includes
an accommodating chamber that is isolated from the blowout flow
passage and communicates with the suction flow passage, and the
drive motor is accommodated in the accommodating chamber.
2. The indoor unit of an air-conditioning apparatus of claim 1,
wherein the accommodating chamber is located between the blowout
flow passage and the suction flow passage as the casing is viewed
from the lower surface portion.
3. The indoor unit of an air-conditioning apparatus of claim 1,
wherein the accommodating chamber is provided at a corner of the
casing as the casing is viewed from the lower surface portion.
4. The indoor unit of an air-conditioning apparatus of claim 1,
wherein the lateral airflow adjusting unit includes a heat
insulating material between a component located in a region that
communicates with the blowout flow passage and a component located
in a region that communicates with the suction flow passage.
5. The indoor unit of an air-conditioning apparatus of claim 1,
wherein the lateral airflow adjusting unit includes a support base
configured to support the plurality of lateral airflow adjusting
plates in such a manner as to enable the plurality of lateral
airflow adjusting plates to be swung, and a coupling member
configured to couple the plurality of lateral airflow adjusting
plates to the drive device, the drive device is attached to the
support base, and the lateral airflow adjusting unit is configured
such that the support base is removably attached to the casing and
thus the plurality of lateral airflow adjusting plates, the support
base, the coupling member, and the drive device are removable from
the casing, with the plurality of lateral airflow adjusting plates,
the support base, the coupling member, and the drive device
assembled as a single body.
6. The indoor unit of an air-conditioning apparatus of claim 1,
wherein the casing includes an indoor unit body including a first
suction flow passage that forms part of the suction flow passage
and a first blowout flow passage that forms part of the blowout
flow passage, the indoor unit body housing the fan and the heat
exchanger, a lateral airflow casement attached to a lower portion
of the indoor unit body, and including a second suction flow
passage and a second blowout flow passage, the second suction flow
passage forming part of the suction flow passage and communicating
with the first suction flow passage, the second blowout flow
passage forming part of the blowout flow passage and communicating
with the first blowout flow passage, and a decorative panel
attached to a lower portion of the lateral airflow casement, and
including the air inlet, a third suction flow passage, a third
blowout flow passage, and the air outlet, the third suction flow
passage forming part of the suction flow passage and communicating
with the second suction flow passage and the air inlet, the third
blowout flow passage forming part of the blowout flow passage and
communicating with the second blowout flow passage and the air
outlet, the accommodating chamber is provided in the lateral
airflow casement, and the plurality of lateral airflow adjusting
plates of the lateral airflow adjusting unit are arranged in the
second blowout flow passage of the lateral airflow casement.
7. The indoor unit of an air-conditioning apparatus of claim 6,
further comprising a vertical airflow adjusting plate provided in
the third blowout flow passage in such a manner as to be swingable
and configured to adjust in a vertical direction, an angle of the
air that is blown from the air outlet.
Description
TECHNICAL FIELD
[0001] The present disclosure relates to an indoor unit of an
air-conditioning apparatus embedded in or suspended from a ceiling
located above an air-conditioned space, and more particularly to a
structure of an airflow adjusting unit.
BACKGROUND ART
[0002] In an existing air-conditioning apparatus, an indoor unit is
embedded in or suspended from a ceiling located above an
air-conditioned space. As existing indoor units installed in such a
manner, for example, the following indoor units are known. A given
type of indoor unit includes an air inlet that is open at a
substantially center portion of a lower surface of a casing, and
four air outlets that are open in such a manner as to surround four
sides of the air inlet in the lower surface, and can blow air
subjected to heat exchange at a heat exchanger in four directions.
Another type of indoor unit includes four air outlets and lateral
airflow adjusting units that are provided in association with the
respective four air outlets, and that adjust in a lateral
direction, the angle of air blown from the air outlets (see, for
example, Patent Literature 1).
[0003] To be more specific, blowout flow passages communicates with
the air outlets, and allow air subjected to heat exchange at the
heat exchanger to be sent to the air outlets. The lateral airflow
adjusting units each include a plurality of lateral airflow
adjusting plates arranged at defined intervals in the lateral
direction in the blowout flow passages and a drive motor that
swings the plurality of lateral airflow adjusting plates. The
plurality of lateral airflow adjusting plates are swung, and
inclination angles of the plurality of lateral airflow adjusting
plates are changed, whereby the angle of the air blown from the air
outlets can be adjusted in the lateral direction.
CITATION LIST
Patent Literature
[0004] Patent Literature 1: Japanese Unexamined Patent Application
Publication No. 2003-194389
SUMMARY OF INVENTION
Technical Problem
[0005] In the indoor unit of the existing air-conditioning
apparatus, drive motors of the lateral airflow adjusting units are
arranged in such a manner as to communicate with the blowout flow
passages. That is, in the indoor unit of the existing
air-conditioning apparatus, the drive motors of the lateral airflow
adjusting units are arranged such that they contact air subjected
to heat exchange at the heat exchanger. Thus, for example, during a
cooling operation, condensation occurs at a drive motor because of
the difference between the temperature of air cooled at the heat
exchanger and that of the drive motor heated. Also, for example,
during a heating operation, the drive motor is heated by air heated
at the heat exchanger. As a result, the temperature of the drive
motor rises. In such a manner, in the indoor unit of the existing
air-conditioning apparatus, the temperature of the air subjected to
heat exchange at the heat exchanger affects the drive motors of the
lateral airflow adjusting units, thereby worsening the durability
of the drive motors.
[0006] The present disclosure is applied to solve the above
problem, and relates to an indoor unit of an air-conditioning
apparatus that can ensure the durability of drive motors of lateral
airflow adjusting units.
Solution to Problem
[0007] An indoor unit of an air-conditioning apparatus according to
the present disclosure includes: a casing having an air inlet and
an air outlet that are provided as openings formed in a lower
surface portion of the casing; a fan housed in the casing to
suction air in an air-conditioned space from the air inlet into the
casing and blow the air from the air outlet; a heat exchanger
housed in the casing to cause heat exchange to be performed between
refrigerant that flows in the heat exchanger and the air sucked
into the casing; and a lateral airflow adjusting unit that adjusts
in a lateral direction, adjust the angle of air that is blown from
the air outlet. In the casing, a suction flow passage and a blowout
flow passage are provided. The suction flow passage causes the air
inlet and the heat exchanger to communicate with each other, and
the blowout flow passage causes the heat exchanger and the air
outlet to communicate with each other. The lateral airflow
adjusting unit includes a plurality of lateral airflow adjusting
plates that are arranged in the blowout flow passage at defined
intervals in the lateral direction, and a drive device that
includes a drive motor and swing the plurality of lateral airflow
adjusting plates with power generated by the drive motor. The
casing includes a accommodating chamber isolated from the blowout
flow passage and communicating with the suction flow passage. The
drive motor is accommodated in the accommodating chamber.
Advantageous Effects of Invention
[0008] The indoor unit of an air-conditioning apparatus according
to the present disclosure can prevent the drive motor of the
lateral adjusting unit from being affected by the temperature of
air subjected to heat exchange at the heat exchanger. Thus, the
indoor unit of the air-conditioning apparatus according to the
present disclosure can ensure the durability of the drive motor of
the lateral airflow adjusting unit.
BRIEF DESCRIPTION OF DRAWINGS
[0009] FIG. 1 is a perspective view illustrating an entire indoor
unit of an air-conditioning apparatus according to Embodiment 1 of
the present disclosure, as viewed from obliquely below.
[0010] FIG. 2 is a vertical sectional view of the entire indoor
unit of an air-conditioning apparatus according to Embodiment 1 of
the present disclosure.
[0011] FIG. 3 is a bottom view illustrating the indoor unit of an
air-conditioning apparatus according to Embodiment 1 of the present
disclosure, with a decorative panel removed.
[0012] FIG. 4 is an exploded perspective view illustrating the
indoor unit of an air-conditioning apparatus according to
Embodiment 1 of the present disclosure, with the decorative panel
removed, as viewed from obliquely below.
[0013] FIG. 5 is a sectional view taken along line A-A in FIG.
3.
[0014] FIG. 6 is a perspective view illustrating the indoor unit of
an air-conditioning apparatus according to Embodiment 1 of the
present disclosure, with the decorative panel removed, as viewed
from obliquely below, and also illustrating the vicinity of a drive
motor of a lateral airflow adjusting unit.
[0015] FIG. 7 is an exploded perspective view illustrating the
indoor unit of an air-conditioning apparatus according to
Embodiment 1 of the present disclosure, with the decorative panel
removed, as viewed from obliquely below, and also illustrating the
vicinity of the drive motor of the lateral airflow adjusting
unit.
[0016] FIG. 8 is an enlarged view of related portions of another
example of the indoor unit of an air-conditioning apparatus
according to Embodiment 1 of the present disclosure.
[0017] FIG. 9 is a bottom view illustrating an indoor unit of an
air-conditioning apparatus according to Embodiment 2 of the present
disclosure, with a decorative panel removed.
[0018] FIG. 10 is an exploded perspective view illustrating the
indoor unit of an air-conditioning apparatus according to
Embodiment 2 of the present disclosure, with the decorative panel
removed, as viewed from obliquely below.
[0019] FIG. 11 is a perspective view illustrating the indoor unit
of an air-conditioning apparatus according to Embodiment 2 of the
present disclosure, with the decorative panel removed, as viewed
from obliquely below, and also illustrating the vicinity of a drive
motor of a lateral airflow adjusting unit.
[0020] FIG. 12 is an exploded perspective view of the indoor unit
of an air-conditioning apparatus according to Embodiment 2 of the
present disclosure, with the decorative panel removed, as viewed
from obliquely below, and also illustrating the vicinity of the
drive motor of the lateral airflow adjusting unit.
[0021] FIG. 13 is a sectional view taken along line B-B in FIG.
9.
DESCRIPTION OF EMBODIMENTS
[0022] Embodiments of an air-conditioning apparatus according to
the present disclosure will be described in detail.
Embodiment 1
[0023] FIG. 1 is a perspective view illustrating an entire indoor
unit of an air-conditioning apparatus according to Embodiment 1 of
the present disclosure, as viewed from obliquely below. FIG. 2 is a
vertical sectional view of the entire indoor unit of the
air-conditioning apparatus according to Embodiment 1 of the present
disclosure.
[0024] An indoor unit 100 of an air-conditioning apparatus
according to Embodiment 1 is embedded in or suspended from a
ceiling located above an air-conditioned space such as a room. The
indoor unit 100 includes a casing 1 having an air inlet 2 and air
outlets 3 that are provided as openings formed in a lower surface
portion of the casing 1. It should be noted that in Embodiment 1,
for example, four air outlets 3 are formed. The casing 1 is, for
example, a hollow box having a substantially rectangular cuboid
shape. The air inlet 2 is open, for example, in a substantially
center portion of the lower surface portion of the casing 1. The
four air outlets 3 are located in such a manner as to surround four
sides of the air inlet 2. Each of the air outlets 3 is, for
example, rectangular, and is provided such that long sides of each
air outlet 3 extend along an associated one of sides of the lower
surface portion of the casing 1. The air inlet 2 includes a suction
grille 2a and a filter 9.
[0025] In the casing 1, a fan 6 is provided to face the air inlet
2, and is a centrifugal fan such as a turbo fan. For example, as
viewed in plan view, a central axis of the fan 6 is located at
substantially the same position as the center of the air inlet 2.
The fan 6 sucks air in the air-conditioned space from the air inlet
2 into the casing 1, and blows the air from the air outlets 3. In
the casing 1, a heat exchanger 7, which is, for example, of a
fin-and-tube type, is also provided to surround the fan 6. The heat
exchanger 7 causes heat exchange to be performed between
refrigerant that flows in the heat exchanger 7 and air in the
air-conditioned space that is sucked into the casing 1 by the fan
6.
[0026] The heat exchanger 7 is located outward of the air inlet 2
and inward of the air outlets 3, as viewed in plan view. To be more
specific, the casing 1 includes a suction flow passage 4 through
which the air inlet 2 and the heat exchanger 7 communicate with
each other, and blowout flow passages 5 through which the heat
exchanger 7 and the air outlets 3 communicate with each other.
Thus, the fan 6 is rotated to cause air in the air-conditioned
space to be sucked into the casing 1 from the air inlet 2 and to
flow into the heat exchanger 7 through the suction flow passage 4,
as suction air 101 and blowout air 102 indicated by arrows in FIG.
2. Also, the air in the air-conditioned space that has flowed into
the heat exchanger 7 exchanges heat with refrigerant that flows
through a refrigerant flow passage in the heat exchanger 7, and is
provided as conditioned air. The conditioned air passes through the
blowout flow passages 5, and is blown from the air outlets 3 to the
air-conditioned space.
[0027] In Embodiment 1, since the number of the air outlets 3 is
four, that of the blowout flow passages 5 is also four. Each
blowout flow passage 5, as well as each air outlet 3, has, for
example, a rectangular cross section, and is located such that long
sides of each blowout flow passage 5 extend along an associated one
of the sides of the lower surface portion of the casing 1. The
indoor unit 100 according to Embodiment 1 also includes a bell
mouth 8 between the air inlet 2 and the fan 6, and the bell mouth 8
guides to the fan 6, the air in the air-conditioned space that is
sucked from the air inlet 2 into the suction flow passage 4.
[0028] In the indoor unit 100 according to Embodiment 1, in each of
the blowout flow passages 5, a vertical airflow adjusting plate 51
and a plurality of lateral airflow adjusting plates 41 are provided
in such a manner as to be swingable and also provided to adjust the
angle of conditioned air that is blown from an associated one of
the air outlets 3.
[0029] The vertical airflow adjusting plate 51 adjusts in a
vertical direction, the angle of the conditioned air that is blown
from the associated air outlet 3. The vertical airflow adjusting
plate 51 extends in the longitudinal direction of the blowout flow
passage 5. The vertical airflow adjusting plate 51 is swung in the
vertical direction around its rotation axis extending in the
longitudinal direction of the blowout flow passage 5. This swinging
operation of the vertical airflow adjusting plate 51 in the
vertical direction can be performed by a drive device such as a
drive motor. Thus, as an outer peripheral end of the vertical
airflow adjusting plate 51 moves more upwards, the angle between a
direction in which the conditioned air is blown from the air outlet
3 and a horizontal direction decreases. Furthermore, as the outer
peripheral end of the vertical airflow adjusting plate 51 moves
more downwards, the conditioned air is blown more downwards from
the air outlet 3.
[0030] The plurality of lateral airflow adjusting plates 41 form a
lateral airflow adjusting unit 40, which will be described later.
The lateral airflow adjusting unit 40 adjusts in the lateral
direction, the angle of the conditioned air that is blown from the
associated air outlet 3. To be more specific, in the air outlets 3,
respective lateral airflow adjusting units 40 are provided. The
plurality of lateral airflow adjusting plates 41 of each of the
lateral airflow adjusting units 40 are arranged in an associated
blowout flow passage 5 at defined intervals in the longitudinal
direction (lateral direction) of the blowout flow passage 5. The
lateral airflow adjusting plates 41 are arranged in the blowout
flow passage 5 such that they are swingable. For example, lower
ends of the lateral airflow adjusting plates 41 are swung in the
lateral direction. Then, the conditioned air that is blown from the
air outlet 3 is curved and blown in a direction in which the lower
ends of the lateral airflow adjusting plates 41 are moved. The
lateral airflow adjusting plates 41 are swung by power generated by
a drive motor 45 of the lateral airflow adjusting unit 40, which
will be described later. Also, the lateral airflow adjusting unit
40 will be described later in detail.
[0031] In Embodiment 1, an indoor unit body 10, a lateral airflow
casement 20, and a decorative panel 30 form the casing 1.
[0032] The indoor unit body 10 is, for example, a box formed in the
shape of a substantially rectangular cuboid that has chamfered
corners as viewed in plan view. The indoor unit body 10 houses the
fan 6, the heat exchanger 7, and the bell mouth 8. In the indoor
unit body 10, a first suction flow passage 14 and first blowout
flow passages 15 are provided. The first suction flow passage 14
forms part of the suction flow passage 4, and the first blowout
flow passages 15 form part of the respective blowout flow passages
5. An end of the first suction flow passage 14 that is located
opposite to the heat exchanger 7 is open, for example, in a
substantially center portion of a lower surface portion of the
indoor unit body 10. Ends of the first blowout flow passages 15
that are located opposite to the heat exchanger 7 are open in the
lower surface portion of the indoor unit body 10 such that the ends
of the first blowout flow passages 15 surround four sides of an
opening portion of the first suction flow passage 14. At an outer
periphery of the indoor unit body 10, fittings 11 are provided, and
are used when the indoor unit body 10 is suspended from the ceiling
located above the air-conditioned space.
[0033] The lateral airflow casement 20 is attached to a lower
portion of the indoor unit body 10. The lateral airflow casement 20
has substantially the same shape as the indoor unit body 10 as
viewed in plan view. To be more specific, the lateral airflow
casement 20 is formed in the shape of a substantially rectangular
cuboid that has chamfered corners as viewed in plan view. In the
lateral airflow casement 20, a second suction flow passage 24 and
second blowout flow passages 25 are formed. The second suction flow
passage 24 forms part of the suction flow passage 4 and
communicates with the first suction flow passage 14. The second
suction flow passage 24 is a through hole formed in a substantially
center portion of the lateral airflow casement 20 as viewed in plan
view. The second blowout flow passages 25 form part of the blowout
flow passages 5 and communicate with the first blowout flow
passages 15. The second blowout flow passage 25 are through holes
arranged in such a manner as to surround four sides of the second
suction flow passage 24 as viewed in plan view.
[0034] Sealants 91 are provided on an upper surface portion of the
lateral airflow casement 20. The sealant 91 is intended to isolate
the suction flow passage 4 (the first suction flow passage 14 and
the second suction flow passage 24) from the blowout flow passages
5 (the first blowout flow passages 15 and the second blowout flow
passages 25) when the lateral airflow casement 20 is secured to the
indoor unit body 10.
[0035] In Embodiment 1, the lateral airflow adjusting units 40,
which will be described later, are provided in the lateral airflow
casement 20. To be more specific, the lateral airflow adjusting
plates 41 are arranged in the second blowout flow passages 25 such
that they can be swung.
[0036] The decorative panel 30 is attached to a lower portion of
the lateral airflow casement 20, and is, for example, a plate
having a substantially rectangular shape. To be more specific, the
decorative panel 30 forms the lower surface portion of the casing
1. The decorative panel 30 includes the air inlet 2, a third
suction flow passage 34, third blowout flow passages 35, and the
air outlets 3. The third suction flow passage 34 forms part of the
suction flow passage 4 and communicates with the second suction
flow passage 24 and the air inlet 2. The third suction flow passage
34 is a through hole formed in a substantially center portion of
the decorative panel 30 as viewed in plan view. The third blowout
flow passages 35 form part of the blowout flow passages 5 and
communicates with the second blowout flow passage 25 and the air
outlets 3. The third blowout flow passages 35 are through holes
arranged in such a manner as to surround four sides of the third
suction flow passage 34 as viewed in plan view.
[0037] Sealants 92 are provided on an upper surface portion of the
decorative panel 30. The sealants 92 are intended to separate the
suction flow passage 4 (the second suction flow passage 24 and the
third suction flow passage 34) from the blowout flow passages 5
(the second blowout flow passages 25 and the third blowout flow
passages 35) when the decorative panel 30 is secured to the lateral
airflow casement 20.
[0038] In Embodiment 1, the vertical airflow adjusting plates 51 as
described above are provided in the third blowout flow passages 35
such that they can be swung. Drive devices 52 that swing the
respective vertical airflow adjusting plates 51 are provided on the
decorative panel 30.
[0039] The indoor unit of the air-conditioning apparatus embedded
in or suspended from the ceiling located above the air-conditioned
space may be sometimes required not to include the lateral airflow
adjusting units 40 in terms of cost reduction, etc. In such a case,
from the indoor unit including the lateral airflow adjusting units,
the lateral airflow adjusting units are removed. That is, the
housing can be applied to both the case the lateral airflow
adjusting units are necessary and the case where the lateral
airflow adjusting units are not necessary. Thus, also in the indoor
unit 100 according to Embodiment 1, the lateral airflow adjusting
units 40 are removed when they are not necessary.
[0040] In the case where the indoor unit body 10 and the lateral
airflow casement 20 are formed integrally with each other, that is,
the lower part of the indoor unit body 10 is extended and is used
as the lateral airflow casement 20, the lateral airflow adjusting
units 40 are provided in the indoor unit body 10. In such a case,
in the case where the lateral airflow adjusting units 40 are
removed from the indoor unit 100, space is made in the indoor unit
body 10. Thus, in the case where the lateral airflow adjusting
units 40 are not necessary, the indoor unit body 10 formed
integrally with the lateral airflow casement 20 is large in size
more than necessary. That is, in the case where the indoor unit
body 10 and the lateral airflow casement 20 are formed integrally
with each other and the lateral airflow adjusting units 40 are not
necessary, the indoor unit 100 is large in size more than
necessary.
[0041] By contrast, in the indoor unit 100 according to Embodiment
1, the indoor unit body 10 and the lateral airflow casement 20 are
formed as separate elements, and the lateral airflow adjusting
units 40 are provided in the lateral airflow casement 20 as
described above. Thus, in the indoor unit 100 according to
Embodiment 1, in the case where the lateral airflow adjusting units
40 are not necessary, it suffices that the lateral airflow casement
20 is removed and the decorative panel 30 is attached to the lower
part of the indoor unit body 10. Thereby, the indoor unit 100 is
prevented from being large in size more than necessary in the case
where the lateral airflow adjusting units 40 are not necessary.
[0042] Next, the lateral airflow adjusting units 40 will be
described in detail.
[0043] FIG. 3 is a bottom view illustrating the indoor unit of an
air-conditioning apparatus according to Embodiment 1 of the present
disclosure, with the decorative panel removed. FIG. 4 is an
exploded perspective view illustrating the indoor unit of an
air-conditioning apparatus according to Embodiment 1 of the present
disclosure, with the decorative panel removed, as viewed from
obliquely below. FIG. 5 is a sectional view taken along line A-A in
FIG. 3. FIG. 6 is a perspective view illustrating the indoor unit
of the air-conditioning apparatus according to Embodiment 1 of the
present disclosure, with the decorative panel removed, as viewed
from obliquely below, and also illustrating the vicinity of a drive
motor of a lateral airflow adjusting unit. FIG. 7 is an exploded
perspective view illustrating the indoor unit of the
air-conditioning apparatus according to Embodiment 1 of the present
disclosure, with the decorative panel removed, as viewed from
obliquely below, and also illustrating the vicinity of the drive
motor of the lateral airflow adjusting unit. FIG. 4 illustrates the
lateral airflow casement 20 to which two of four lateral airflow
adjusting units 40 are attached, but remaining two of the four
lateral airflow adjustment units 40 are not attached. In FIG. 5, a
drive device 44 of a lateral airflow adjusting unit 40 is
illustrated, but the shape of the drive device 44 illustrated is
not a cross section of the drive device 44.
[0044] Each of the lateral airflow adjusting units 40 includes the
lateral airflow adjusting plates 41 as described above, a support
base 42, a coupling member 43, and the drive device 44. The lateral
airflow adjusting plates 41 are supported at a side surface portion
of the support base 42 such that it can be swung. The support base
42 is attached to the lateral airflow casement 20 in the
longitudinal direction of the second blowout flow passage 25.
Because of the support base 42 is attached to the lateral airflow
casement 20, the lateral airflow adjusting plates 41 are provided
in the second blowout flow passage 25. In this case, in the second
blowout flow passage 25, the lateral airflow adjusting plates 41
are located closer to an outer peripheral side of the lateral
airflow casement 20 than the support base 42. In other words, in
the second blowout flow passage 25, the support base 42 is located
closer to an inner peripheral side of the lateral airflow casement
20 than the lateral airflow adjusting plates 41, that is, it is
located closer to the second suction flow passage 24 than the
lateral airflow adjusting plates 41.
[0045] The lateral airflow adjusting plates 41 are coupled to each
other by the coupling member 43. The coupling member 43 is also
connected to the drive device 44. In Embodiment 1, the coupling
member 43 includes a first coupling member 43a that couples the
lateral airflow adjusting plates 41 to each other, and a second
coupling member 43b that couples the first coupling member 43a and
the drive device 44 to each other.
[0046] The drive device 44 includes the drive motor 45 and a power
transmission mechanism 46 that connects the drive motor 45 and the
second coupling member 43b. The power transmission mechanism 46 is,
for example, a gear, and transmits power generated by the drive
motor 45 to the second coupling member 43b. To be more specific,
when the drive motor 45 is rotated, a rotational power generated
thereby is transmitted to the lateral airflow adjusting plates 41
by the power transmission mechanism 46 and the coupling member 43.
Specifically, when the drive motor 45 is rotated in a certain
rotational direction, lower end portions of the lateral airflow
adjusting plates 41 are moved in a certain single direction. When
the drive motor 45 is rotated in the opposite direction to the
rotational direction, the lower end portions of the lateral airflow
adjusting plates 41 are moved in the opposite direction to the
above certain single direction. The drive device 44 having the
above configuration is attached to the support base 42.
[0047] When the drive device 44 is attached to the support base 42,
the drive motor 45 protrudes from the power transmission mechanism
46 toward the inner peripheral side of the lateral airflow casement
20 as viewed in plan view. In other words, as the drive motor 45 is
viewed with respect to part of the support base 42 that supports
the lateral airflow adjusting plates 41, the drive motor 45
protrudes from the above part of the support base 42 toward the
inner peripheral side of the lateral airflow casement 20. A lid 47
is provided on a lower portion of the drive device 44.
[0048] The lateral airflow casement 20 includes accommodating
chambers 21 on lateral sides of the respective second blowout flow
passages 25. In other words, the accommodating chambers 21 are
provided at respective corners of the lateral airflow casement 20
as the lateral airflow casement 20 is viewed from below.
Furthermore, in other words, the accommodating chambers 21 are
provided at the corners of the casing 1 as the housing 1 is viewed
from the lower surface portion. The accommodating chambers 21 house
the respective drive devices 44 when the lateral airflow adjusting
units 40 are attached to the lateral airflow casement 20. The
accommodating chambers 21 are recesses which are open on their
lower side. The accommodating chambers 21 communicate with side end
portions of the respective second blowout flow passages 25 when the
drive devices 44 are not accommodated in the accommodating chambers
21.
[0049] By contrast, when a drive device 44 is accommodated in an
associated accommodating chamber 21, as illustrated in FIG. 5, the
accommodating chamber 21 is partitioned into a second accommodating
chamber 21b and a first accommodating chamber 21a that accommodates
the drive motor 45, by the power transmission mechanism 46, the lid
47, and a wall portion 42a of the support base 42 that surrounds
the drive motor 45. Thereby, the first accommodating chamber 21a
that accommodates the drive motor 45 is isolated from the second
accommodating chamber 21b that communicates with the second blowout
flow passage 25. That is, the first accommodating chamber 21a is
isolated from the blowout flow passage 5. At the support base 42, a
sealant 42b is provided at part of the support base 42 where
airtightness needs to be ensured, such as space between the wall
portion 42a of the support base 42 and an inner peripheral wall of
the accommodating chamber 21. Also, at the lid 47, a sealant 47a is
provided at part of the lid 47 where airtightness needs to be
ensured, such as the vicinity of an opening portion of the
accommodating chamber 21 and the lid 47. It should be noted that
with respect to the wall portion 42a, FIG. 7 should also be
referred to.
[0050] In this case, the lid 47 covers a lower opening of the
accommodating chamber 21 such that only part of the lower opening
that corresponds to the flow passage 22 is still open; that is, the
part is not covered. The sealant 92 is provided between a lower
surface portion of the lateral airflow casement 20 and an upper
surface portion of the decorative panel 30 in such a manner as to
surround an outer periphery of the second blowout flow passage 25,
as indicated as a location range 92a by a two-dot chain line in
FIG. 3. Thus, the flow passage 22 is not covered with the sealant
92. Thus, the first accommodating chamber 21a that accommodates the
drive motor 45 communicates with the suction flow passage 4. To be
more specific, the lateral airflow casement 20 that is part of the
casing 1 includes the first accommodating chamber 21a isolated from
the blowout flow passage 5 and communicating with the suction flow
passage 4. The drive motor 45 is accommodated in the first
accommodating chamber 21a.
[0051] The first accommodating chamber 21a corresponds to the
accommodating chamber of the present disclosure.
[0052] The flow passage that causes the first accommodating chamber
21a and the suction flow passage 4 to communicate with each other
is not limited to the flow passage 22. For example, a through hole
or a groove that causes the first accommodating chamber 21a and the
suction flow passage 4 to communicate with each other may be formed
in at least one of the lateral airflow casement 20 and the
decorative panel 30 to serve as a flow passage that causes the
first accommodating chamber 21a and the suction flow passage 4 to
communicate with each other.
[0053] In order to form the lateral airflow adjusting unit 40
having the above configuration, first, the lateral airflow
adjusting plates 41, the support base 42, the coupling member 43,
and the drive device 44 are assembled into a single component.
Then, the support base 42 is removably attached to the lateral
airflow casement 20, for example, by screwing. To be more specific,
the lateral airflow adjusting unit 40 of Embodiment 1 is removable
as the assembled single component from the lateral airflow casement
20. For example, if the inside of the blowout flow passage 5 is
soiled with, for example, dust, there is a case where the lateral
airflow adjusting unit 40 must be removed to clean the inside of
the blowout flow passage 5. In this case, in the indoor unit 100
according to Embodiment 1, the lateral airflow adjusting unit 40
can be removed as the assembled single component from the lateral
airflow casement 20. It is therefore possible to improve the
cleanability. Also, in the indoor unit 100 according to Embodiment
1, for example, if the lateral airflow adjusting plate 41 is
damaged, the lateral airflow adjusting unit 40 can be removed as
the assembled single component from the lateral airflow casement 20
in order that the lateral airflow adjusting plate 41 be replaced by
a new one. In such a manner, in the indoor unit 100 according to
Embodiment 1, the lateral airflow adjusting unit 40 can be attached
to and removed as the assembled single body from the lateral
airflow casement 20, thereby improving the maintainability.
[0054] Next, the operation of the indoor unit 100 according to
Embodiment 1 will be described.
[0055] As the suction air 101 and the blowout air 102 indicated by
arrows in FIG. 2, when the fan 6 is rotated, air in the
air-conditioned space is sucked from the air inlet 2 into the
casing 1 and flows into the heat exchanger 7 through the suction
flow passage 4. Then, when passing through the heat exchanger 7,
the air in the air-conditioned space that has flowed into the heat
exchanger 7 exchanges heat with the refrigerant that flows through
the refrigerant flow passage in the heat exchanger 7 and is thus
conditioned. The conditioned air passes through the blowout flow
passage 5, and is blown into the air-conditioned space from the air
outlets 3.
[0056] In this case, the angle of the conditioned air that is blown
from the air outlet 3 can be adjusted in the vertical direction by
adjusting the inclination angle of the vertical airflow adjusting
plate 51. Also, the angle of the conditioned air that is blown from
the air outlet 3 can be adjusted in the lateral direction by
adjusting the inclination angle of the lateral airflow adjusting
plate 41. That is, by adjusting the inclination angles of the
vertical airflow adjusting plate 51 and the lateral airflow
adjusting plate 41, it is possible to adjust the angle of the
conditioned air that is blown from the air outlet 3, in the
vertical and lateral directions, to set the angle to an arbitrary
angle.
[0057] The inclination angles of the vertical airflow adjusting
plate 51 and the lateral airflow adjusting plate 41 may be fixed to
fix the angle of the conditioned air that is blown from the air
outlet 3. The vertical airflow adjusting plate 51 and the lateral
airflow adjusting plate 41 may be continuously moved to
continuously change the inclination angles of the vertical airflow
adjusting plate 51 and the lateral airflow adjusting plates 41.
Furthermore, as a whole, the vertical airflow adjusting plates 51
provided in the respective blowout flow passages 5 may be operated
independently of each other, or operated in coordination with each
other. Also, the lateral airflow adjusting plates 41 provided in
the respective blowout flow passages 5 may be also operated
independently of each other, or operated in interlock with each
other.
[0058] As described above, in the indoor unit 100 according to
Embodiment 1, the drive motor 45 of the lateral airflow adjusting
unit 40 is provided in the first accommodating chamber 21a that is
isolated from the blowout flow passage 5 and communicates with the
suction flow passage 4. Thus, during the cooling operation, the
drive motor 45 is not directly exposed to air cooled at the heat
exchanger 7. Therefore, in the indoor unit 100 according to
Embodiment 1, condensation water can be prevented from being
generated at the drive motor 7 because of the difference in
temperature between the air cooled by the heat exchanger 7 and the
drive motor 45 heated. Also, during the heating operation, the
drive motor 45 is not directly exposed to the air heated by the
heat exchanger 7. Also, during the heating operation, the drive
motor 45 is cooled by the air sucked into the suction flow passage
4. Thus, in the indoor unit 100 according to Embodiment 1, the
temperature of the drive motor 45 can be prevented from being
raised by the air heated by the heat exchanger 7.
[0059] In such a manner, in the indoor unit 100 according to
Embodiment 1, it is possible to prevent the drive motor 45 from
being affected by the temperature of the air subjected to heat
exchange at the heat exchanger 7. Thus, the indoor unit 100
according to Embodiment 1 can ensure the durability of the drive
motor 45. This advantage is not an advantage obtained only in the
case where the indoor unit body 10, the lateral airflow casement
20, and the decorative panel 30 form the casing 1. For example, the
advantage can also be obtained in the case where the indoor unit
body 10 and the lateral airflow casement 20 are formed integrally
with each other to form the casing 1. That is, it suffices that in
the casing 1, the first accommodating chamber 21a is provided in
such a manner as to be isolated from the blowout flow passage 5 and
communicate with the suction flow passage 4. In this first
accommodating chamber 21a, the drive motor 45 is provided. Because
of this configuration, the above advantage can be obtained.
[0060] As described above, the indoor unit 100 according to
Embodiment 1 includes the casing 1 having the air inlet 2 and the
air outlets 3 that are provided as openings formed in the lower
surface portion of the casing 1. The indoor unit 100 according to
Embodiment 1 includes the fan 6, the heat exchanger 7, and the
lateral airflow adjusting units 40. The fan 6 is provided in the
casing 1 to suck air in the air-conditioned space from the air
inlet 2 into the casing 1, and blow air from the air outlets 3. The
heat exchanger 7 is provided in the casing 1 to cause heat exchange
to be performed between the refrigerant that flows in the heat
exchanger 7 and the air sucked into the casing 1. The lateral
airflow adjusting units 40 adjust the angle of the air that is
blown from the air outlets 3, in the lateral direction. To be more
specific, the casing 1 includes the suction flow passage 4 that
causes the air inlet 2 and the heat exchanger 7 to communicate with
each other, and the blowout flow passages 5 that causes the heat
exchanger 7 and the air outlets 3 to communicate with each other.
The lateral airflow adjusting units 40 each includes the plurality
of lateral airflow adjusting plates 41 that are arranged in an
associated one of the blowout flow passages 5 at defined intervals
in the lateral direction, and the drive device 44 that includes the
drive motor 45 and swings the plurality of lateral airflow
adjusting plates 41 with power generated by the drive motor 45. The
casing 1 includes the first accommodating chambers 21a that are
isolated from the respective blowout flow passages 5 and
communicate with the suction flow passage 4. The drive motor 45 is
accommodated in the first accommodating chamber 21a.
[0061] In the indoor unit 100 having the above configuration, the
drive motor 45 can be prevented from being affected by the
temperature of the air subjected to heat exchange at the heat
exchanger 7. Thus, the indoor unit 100 according to Embodiment 1
can ensure the durability of the drive motor 45.
[0062] Furthermore, in the indoor unit 100 according to Embodiment
1, the first accommodating chambers 21a are provided at the
respective corners of the casing 1 as the casing 1 is viewed from
the lower surface portion side. The corners of the casing 1 are
portions where it is hard to provide components of the indoor unit
100. Therefore, in Embodiment 1, since the first accommodating
chambers 21a are provided at the respective corners of the casing 1
and accommodate the respective drive motors 45, the corners of the
casing 1 can be effectively used.
[0063] As illustrated in, for example, FIG. 8, the lateral airflow
adjusting unit 40 may include a heat insulating material 93 between
a component located in a region that communicates with the blowout
flow passage 5 and a component located in a region that
communicates with the suction flow passage 4.
[0064] FIG. 8 is an enlarged view of a related portion of another
example of the indoor unit of the air-conditioning apparatus
according to Embodiment 1 of the present disclosure. FIG. 8
illustrates a section taken at the same position as in FIG. 5.
[0065] In the indoor unit 100 as illustrated in FIG. 8, the lateral
airflow adjusting unit 40 includes the heat insulating material 93
between the power transmission mechanism 46 and the drive motor 45.
The heat insulating material 93 is formed of, for example, urethane
foam.
[0066] As described above, the second accommodating chamber 21b
communicates with the second blowout flow passage 25 that forms
part of the blowout flow passage 5. The power transmission
mechanism 46 of the lateral airflow adjusting unit 40 is
accommodated in the second accommodating chamber 21b. Thus, the
power transmission mechanism 46 is cooled by air cooled at the heat
exchanger 7 during the cooling operation. The power transmission
mechanism 46 is heated by air heated at the heat exchanger 7 during
the heating operation. In the lateral airflow adjusting unit 40 as
illustrated in FIG. 5, the power transmission mechanism 46 and the
drive motor 45 are directly connected to each other. Thus, because
of heat exchange between the power transmission mechanism 46 and
the drive motor 45, the drive motor 45 is slightly affected by the
temperature of air subjected to heat exchange at the heat exchanger
7. By contrast, in the lateral airflow adjusting unit 40 as
illustrated in FIG. 8, the heat insulating material 93 can prevent
heat exchange between the power transmission mechanism 46 and the
drive motor 45. Thus, the lateral airflow adjusting unit 40 is
configured as illustrated in FIG. 8, thereby further reliably
preventing the drive motor 45 from being affected by the
temperature of the air subjected to heat exchange at the heat
exchanger 7. Thus, the configuration of the lateral airflow
adjusting unit 40 as illustrated in FIG. 8 can further reliably
ensure the durability of the drive motor 45.
Embodiment 2
[0067] The position of the accommodating chamber 21 that
accommodates the drive motor 45 of the lateral airflow adjusting
unit 40 is not limited to the position as described regarding
Embodiment 1. For example, the accommodating chamber 21 may be
provided at a position as described below regarding Embodiment 2.
It should be noted that in Embodiment 2, matters not described
regarding Embodiment 2 and described regarding Embodiment 1 are the
same as those described in Embodiment 1, and in the descriptions
regarding Embodiment 2, functions and components that are the same
as in Embodiment 1 will be denoted by the same reference signs.
[0068] FIG. 9 is a bottom view illustrating an indoor unit of an
air-conditioning apparatus according to Embodiment 2 of the present
disclosure, with a decorative panel removed. FIG. 10 is an exploded
perspective view illustrating the indoor unit of an
air-conditioning apparatus according to Embodiment 2 of the present
disclosure, with the decorative panel removed, as viewed from
obliquely below. FIG. 11 is a perspective view illustrating the
indoor unit of the air-conditioning apparatus according to
Embodiment 2 of the present disclosure, with the decorative panel
removed, as viewed from obliquely below, and illustrates the
vicinity of a drive motor of a lateral airflow adjusting unit. FIG.
12 is an exploded perspective view illustrating the indoor unit of
the air-conditioning apparatus according to Embodiment 2 of the
present disclosure, with the decorative panel removed, as viewed
from obliquely below, and illustrates the vicinity of the drive
motor of the lateral airflow adjusting unit. FIG. 13 is a sectional
view taken along line B-B in FIG. 9. FIG. 10 illustrates a state
where two of four lateral airflow adjusting units 40 are attached,
but the other two of the four lateral airflow are not attached.
[0069] In an indoor unit 100 according to Embodiment 2, each of the
accommodating chambers 21 is provided between an associated second
blowout flow passage 25 and the second suction flow passage 24 as
the lateral airflow casement 20 is viewed from below. In other
words, each accommodating chamber 21 is provided between an
associated blowout flow passage 5 and the suction flow passage 4 as
the casing 1 is viewed from a lower surface portion side thereof.
When a drive device 44 is not provided in an associated
accommodating chamber 21, an outer peripheral side portion of the
accommodating chamber 21 communicates with an inner peripheral side
portion of the second blowout flow passage 25. An inner peripheral
side surface of the accommodating chamber 21 communicates with the
second suction flow passage 24. It should be noted that in
Embodiment 2, plate members 28 are provided to face the inner
peripheral side surfaces of the accommodating chambers 21. The
plate members 28 prevents, for example, an operator from touching
the drive motors 45 accommodated in the respective accommodating
chambers 21, and do not close spaces between the accommodating
chambers 21 and the second suction flow passage 24. Thus, as
illustrated in FIGS. 11 and 13, flow passages 22 that cause the
accommodating chambers 21 and the second suction flow passage 24 to
communicate with each other are ensured.
[0070] In each of the lateral airflow adjusting units 40 according
to Embodiment 2, the drive motor 45 and the power transmission
mechanism 46 that forms the drive device 44 are located closer to
an inner peripheral side of the lateral airflow casement 20 than
part of the support base 42 that supports the lateral airflow
adjusting plate 41.
[0071] The support base 42 has a wall 42c that protrudes toward the
second suction flow passage 24. An outer peripheral surface of the
wall 42c is shaped in accordance with the shape of an inner
peripheral surface 21c of an opening portion of the accommodating
chamber 21 that is located closer to the second blowout flow
passage 25. The power transmission mechanism 46 has a wall 46a that
protrudes toward the second blowout flow passage 25. An outer
peripheral surface of the wall 42c, as well as the wall 42c, is
shaped in accordance with the shape of the inner peripheral surface
21c of the opening port of the accommodating chamber 21 that is
located closer to the second blowout flow passage 25. A distal end
of the wall 42c of the accommodating chamber 21 is in contact with
a distal end of the wall 46a of the power transmission mechanism
46. With the drive device 44 accommodated in the accommodating
chamber 21, the wall 42c of the support base 42 and the wall 46a of
the power transmission mechanism 46 are in contact with the inner
peripheral surface 21c of the opening portion of the accommodating
chamber 21 that is closer to the second blowout flow passage 25.
Thereby, the second blowout flow passage 25 is isolated from the
accommodating chamber 21. That is, the accommodating chamber 21 is
isolated from the blowout flow passage 5. Thus, the drive motor 45
of the drive device 44 is isolated from the second blowout flow
passage 25, that is, the blowout flow passage 5, and is
accommodated in the accommodating chamber 21 that communicates with
the suction flow passage 4.
[0072] In Embodiment 2, the accommodating chamber 21 corresponds to
the accommodating chamber of the present disclosure.
[0073] In Embodiment 2, in order to improve the airtightness
between the wall 42c of the support base 42 and the wall 46a of the
power transmission mechanism 46 and the inner peripheral surface
21c of the accommodating chamber 21, a sealant 48 is provided
between the wall portions 42c and 46a and inner peripheral surface
21c. Furthermore, in Embodiment 2, a sealant 42d is provided
between the inner peripheral surface of the second blowout flow
passage 25 and the support base 42 to improve the airtightness
between the inner peripheral surface and the support base 42.
[0074] As described above, in the indoor unit 100 according to
Embodiment 2, the drive motor 45 is accommodated in the
accommodating chamber 21 that is isolated from the second blowout
flow passage 25, that is, the blowout flow passage 5, and
communicates with the suction flow passage 4. Thus, as in
Embodiment 1, in the indoor unit 100 according to Embodiment 2
also, it is possible to prevent can also prevent the drive motor 45
from being affected by the temperature of air subjected to heat
exchange at the heat exchanger 7. Thus, the indoor unit 100
according to Embodiment 2 can also ensure the durability of the
drive motor 45 as in Embodiment 1.
[0075] In the indoor unit 100 according to Embodiment 2, the
accommodating chamber 21 is provided closer to the suction flow
passage 4 than in Embodiment 1. Thus, air in the accommodating
chamber 21 of the indoor unit 100 according to Embodiment 2 is
easily sucked by a fan 6 when the fan 6 is rotated, as compared
with the first accommodating chamber 21a of Embodiment 1. Thus, the
accommodating chamber 21 of the indoor unit 100 according to
Embodiment 2 is located such that heat generated by the drive motor
45 cannot easily stay in the accommodating chamber 21 of the indoor
unit 100, as compared with the first accommodating chamber 21a of
Embodiment 1, thereby restricting an increase in the temperature of
the drive motor 45. Therefore, the indoor unit 100 according to
Embodiment 2 can also further improve efficiency of the drive motor
45 than the indoor unit 100 in Embodiment 1.
[0076] Also, as illustrated in FIG. 12, as in Embodiment 1, the
lateral airflow adjusting unit 40 of Embodiment 2 includes a heat
insulating material 93 between a component located in a region that
communicates with the blowout flow passage 5 and a component
located in a region that communicates with the suction flow passage
4.
[0077] Specifically, in the indoor unit 100 according to Embodiment
2, the support base 42 of the lateral airflow adjusting unit 40
isolates the accommodating chamber 21 and the blowout flow passage
5 from each other. That is, the support base 42 is the component
located in the region that communicates with the blowout flow
passage 5. In the lateral airflow adjusting unit 40 according to
Embodiment 2, the drive motor 45 and the power transmission
mechanism 46 are accommodated in the accommodating chamber 21. That
is, the drive motor 45 and the power transmission mechanism 46 are
the components located in the region that communicates with the
suction flow passage 4. The heat insulating material 93 is provided
between the support base 42 and the power transmission mechanism
46. To be more specific, as illustrated in FIG. 13, the heat
insulating material 93 is provided in space surrounded by the wall
42c of the support base 42 and the wall 46a of the power
transmission mechanism 46. Thus, as in Embodiment 1, the indoor
unit 100 according to Embodiment 2 can further reliably prevent the
drive device 45 from being affected by the temperature of the air
subjected to heat exchange at the heat exchanger 7. Thus, the
indoor unit 100 according to Embodiment 2 can further reliably
ensure the durability of the drive motor 45 as in Embodiment 1.
TABLE-US-00001 Reference Signs List 1 casing, 2 air inlet, 2a
suction 3 air outlet, grille, 4 suction 5 blowout flow 6 fan, 7
heat exchanger, flow passage, passage, 8 bell mouth, 9 filter, 10
indoor 11 fittings, unit body, 14 first suction 15 first 20 lateral
21 accommodating flow passage, blowout flow airflow chamber,
passage, casement, 21a first 21b second 21c inner 22 flow passage,
accommodating accommodating peripheral chamber, chamber, surface,
24 second 25 second 28 plate 30 decorative suction flow blowout
flow member, panel, passage, passage, 34 third suction 35 third 40
lateral 41 lateral flow passage, blowout flow airflow airflow
passage, adjusting unit, adjusting plate, 42 support 42a wall 42b
sealant, 42c wall, base, portion, 42d sealant, 43 coupling 43a
first coupling 43b second coupling member, member, member, 44 drive
45 drive motor, 46 power 46a wall, device, transmission mechanism,
47 lid, 47a sealant, 48 sealant, 51 vertical airflow adjusting
plate, 52 drive 91 sealant, 92 sealant, 92a location device, range,
93 heat 100 indoor 101 suction 102 blowout insulating unit, air,
air material,
* * * * *