JP3307764B2 - Air conditioner - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air conditioner having a plurality of inner casings adjacent to each other inside an outer case.

[0002]

2. Description of the Related Art Some air conditioners, for example, ventilators for air conditioning, are constructed as shown in FIGS. 27 to 29. An outer box 1 is disposed behind a ceiling plate 2 and a lower surface thereof. The opening faces the indoor side, and is covered by the decorative plate 3 having the ventilation holes 3a. On the inner surface of this outer box 1,
Supports 4 and 5 as an inner casing, an intake casing 6 and an exhaust casing 7 are provided. In this case, the support 4, the support 5, and the intake casing 6 are adjacent to each other, and the support 5 and the exhaust casing 7 are adjacent to each other.

The support members 4 and 5 and the intake casing 6
The exhaust casing 7 is made of polystyrene foam. The heat exchanger 8 is supported by the supports 4 and 5 in a sandwiched state, and an intake blade 9 is accommodated in the intake casing 6 in advance, and an exhaust blade 10 is disposed in the exhaust casing 7. Are stored and arranged in advance. The supports 4 and 5, the intake casing 6 and the exhaust casing 7 are supported by a holding plate 11 attached to a lower surface opening of the outer box 1 in a state where the outer casing 1 is not dropped.
The intake blade 9 and the exhaust blade 10 are rotatably driven by a motor (not shown). An intake duct 13 is connected to a side plate of the outer box 1 via an intake port body 12 and an exhaust duct 15 is connected via an exhaust port body 14.

In the above configuration, when the intake blade 9 and the exhaust blade 10 are driven to rotate, first, the intake blade 9
, The outdoor air is sucked into the intake casing 6 through the intake duct 13 as shown by the arrow A, and is discharged from the discharge port 6a of the intake casing 6, and And through one of the ventilation paths of the heat exchanger 8, and is supplied into the room through the ventilation holes 3 a of the decorative board 3. On the other hand, due to the rotation of the exhaust blade 10, room air is sucked into the exhaust casing 7 through another ventilation hole 3 a of the decorative plate 3 as shown by an arrow B, and the discharge port 7 a
From the outside, passes through the other ventilation path of the heat exchanger 8, and is discharged outside through the exhaust duct 15. In the heat exchanger 8, the intake air and the exhaust air exchange heat.

[0005]

However, in the above-mentioned conventional structure, the support members 4, 5 and
When manufacturing dimensions vary in the intake casing 6 or the exhaust casing 7, rattling or gaps may occur at their joints, and the assembling accuracy may be reduced as a whole.

The present invention has been made in view of the above circumstances, and a purpose thereof is to insert and arrange a plurality of inner casings in an outer box so as to be adjacent to each other. An object of the present invention is to provide an air conditioner that can be assembled without sticking and without gaps.

[0007]

The first means is that a plurality of inner casings, at least one of which is made of styrofoam, are placed inside the outer box having an opening on one side through the opening.
It is inserted and provided adjacently, and the joining surface of the adjacent inner casing is formed in an inclined shape, one of which is
The width dimension of the insertion end of the inner casing of the
The width is set to be larger than the width of the portion into which the ring is inserted, and at least one inner casing is configured to be pressed in the mounting direction by a holding plate mounted on the opening of the outer box. 1 invention).

[0008] The second means is the first means, wherein foaming is performed.
One of the inner casing made of polystyrene and the inner casing made of non-foamed polystyrene adjacent thereto is characterized in that a protrusion is formed to which a pressing force is applied by the holding plate. (Invention of claim 2).

[0009] The third means is the first means, wherein foaming is performed.
It is characterized in that the expansion ratio of styrene is 50 to 70 (the invention of claim 3).

[0010]

In the first means, a plurality of inner casings, at least one of which is made of styrene foam, are inserted into the outer box having one side open from the opening so as to be adjacent to each other, The joint surfaces of the inner casings that are adjacent to each other are formed in an inclined shape, and one of the inner casings
The width of the insertion end of the
Is set to be larger than the width dimension of the portion to be pressed , and at least one inner casing is pressed in the mounting direction by the holding plate mounted on the opening of the outer box. The plurality of inner casings are pressed against each other in the directions, so that the plurality of inner casings are assembled without play.

In the second means, an inner casing made of styrofoam and an adjacent non-foamed foam are provided.
Since a protruding portion to which the pressing force by the holding plate is applied is formed on either one of the inner casing made of styrene and the pressing force due to the contact of the protruding portion, an appropriate flexible deformation is expected. As a result, the pressing force becomes appropriate.

In the third means, styrene foam is used.
Since the expansion ratio is 50 to 70 , appropriate flexibility can be expected.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the present invention will be described below with reference to FIGS. First, FIGS. 5 and 6
The outer box 2 made of a steel plate (an inflexible member)
1 has a rectangular box shape with one surface opened, for example, a lower surface, which is attached to a ceiling plate 22. The lower surface opening of the outer box 21 is covered with a decorative plate 23 having a long and narrow ventilation hole 23a formed therearound. The structure for attaching the decorative plate 23 is as follows. That is, as shown in FIGS. 6 to 9, decorative plate supports 24, 24 having engaging portions 24 a, 24 a are attached to the decorative plate 23 so as to face each other, and the spring receiver 25 is attached to the opening flange portion 21 a of the outer case 21. , 25, the distal ends of the wire springs 26, 26 are inserted into the spring supports 25, 25, and the base ends are hooked on the engaging portions 24a, 24a of the decorative board supports 24, 24. The decorative board 23 is attached to the ceiling board 22 by pushing up the decorative spring 23 by the expanding force of the wire springs 26, 26.

Although not shown, an intake port and an exhaust port are formed on one side plate of the outer box 21, and an intake duct 28 is connected to the intake port via an intake port body 27 as shown in FIG. An exhaust duct 3 is provided at the exhaust port via an exhaust port body 29.
0 is connected.

As shown in FIGS. 1, 2 and 6, an outer fan 21 is provided with an intake fan device 31 and an exhaust fan device 32, and a cross-flow type heat exchanger. 33 is a support 34, 3 as an inner casing
5, and these are held by a holding plate 36 formed of, for example, a steel plate (an inflexible member). That is, in detail, the intake fan device 31
Has an intake casing 37 as an inner casing formed of, for example, styrene foam having an expansion ratio of 50 to 70, which is a flexible member and a heat insulating member, and an intake blade 38 formed of centrifugal blades. Thus, one surface 37a, which is a joining surface of the intake casing 37, is formed in a slightly downwardly inclined shape. In addition, the intake casing 37
Has a suction port 37b and a discharge port 37b.
c is formed. Furthermore, this intake casing 3
The height of 7 is set to be the same as the internal height of the outer box 21.

The exhaust fan device 32 is composed of an exhaust casing 39 as an inner casing formed of, for example, styrene foam having a foaming ratio of 50 to 70, which is a flexible member and a heat insulating member, and a centrifugal blade. One surface 39a, which is a joining surface of the exhaust casing 39, is formed to be slightly downwardly inclined (having the same angle as the one surface 37a of the intake casing 37). The exhaust casing 39 has a suction port 39.
b is formed and the discharge port 39c is formed. Furthermore, the height dimension of the exhaust casing 39 also
It is set so as to be the same as the internal height of the outer box 21.

As shown in FIG. 7, the intake blade 38 and the exhaust blade 40 are connected to a rotating shaft of a double-shaft motor 42 mounted on a motor mounting plate 41 which also serves as a partition plate. The intake blades 38 are housed in the intake casing 37 and the exhaust blades 40 are housed in the exhaust casing 39, and are inserted and arranged inside the outer box 21.

The support 34 is a flexible member and a heat insulating member, for example, made of styrene foam having an expansion ratio of 50 to 70. As shown in FIG. The plate portion 34b and the side plate portions 34c and 34d connected to both sides thereof are integrally formed. As shown in FIG. 1, an outer surface 34e, which is a joining surface of the main plate portion 34a, is slightly inclined upward, and one surface 37a of the intake casing 37 and the exhaust casing 3
9 is formed so as to be parallel to one surface 39a. Further, an end surface 34f (each end surface of the upper plate portion 34b and the side plate portions 34c and 34d), which is a joining surface of the support 34 opposite to the main plate portion 34a, is formed so as to be slightly inclined upward. Then, the main plate portion 34a
Are formed with an intake opening 43 and an exhaust opening 44. Further, the main plate portion 34a and the side plate portions 34c, 3
A plate-shaped receiving portion 45 for holding the heat exchanger 33 and positioning concave portions 46, 46 are formed on the inner surface of the 4d (see FIGS. 3 and 6). A seal member 47 made of a sponge is attached.

The support body 35 is made of polystyrene foam having a foaming ratio of 50 to 70, which is also a flexible member and a heat insulating member. As shown in FIGS.
5a and side plate portions 35b, 35c hanging from both ends thereof
And are integrally formed. An end surface 35d (upper plate portion 3) which is a joining surface on one side (the right side in FIG. 1) of the support body 35
5a and the right end surfaces of the side plate portions 35b and 35c) are formed so as to be slightly downwardly inclined and parallel to the end surface 34f of the support 34. Further, the other end surface 35e of the support 35 (the upper plate portion 35a and the side plate portions 35b, 3b).
5c) is formed vertically. A cutout 48 (see FIG. 6) as an exhaust opening is formed in the side plate 35b of the support 35. Further, the support 35 has a plate-shaped receiving portion 4 for holding the heat exchanger 33.
9 and positioning concave portions 50, 50 are formed.
A seal member 49a made of, for example, a sponge is attached to a tip of the receiving portion 49. On the other hand, the holding plate 36 is attached to the lower surface opening of the outer box 21 by screwing, and a frame portion 36a is formed on one side edge.

Here, as shown in FIG. 3, the support 34 is provided with an intake casing 37 and an exhaust casing 3.
9 and the support 35 are inserted into the outer box 21, and then inserted and disposed between the intake casing 37 and the exhaust casing 39 and the support 35. The components are incorporated into the outer case 21 in a state where the outer case 21 is turned upside down in advance, and will be described below with reference to the drawings for convenience.

In this case, the width of the upper portion of the support 34 (see FIG.
3) Wa is the width of the support 3
5, intake casing 37 and exhaust casing 39
It is inserted as seen from the separation dimension (Fig. 3 at the top of the
That portion is slightly larger than the width) Wb of addition,
The width Wc of the lower portion of the support 34 is set to be slightly larger than the separation Wd at the lower portion of the support 35 and the intake casing 37 and the exhaust casing 39. As described above, the one surface 37a of the intake casing 37 and the one surface 39a of the exhaust casing 39 are parallel to the outer surface 34e of the support 34, and the end face 3
4f and the end face 35d of the support 35 are parallel to each other, so that when the support 34 is inserted with a normal operating force from the state shown in FIG. 3, the lower portion of the support 34 becomes the support 35, the intake casing 37, and the exhaust It slightly exits from the lower end of the casing 39.

In this state, the heat exchanger 33 is connected to the support 34,
The holding plate 36 is inserted into the positioning concave portions 46, 46, 50, 50 and pressed against the receiving portions 45, 49, and the holding plate 36 is attached to the lower surface opening of the outer case 21 by screwing. With this,
The heat exchanger 33 is held by the supports 34 and 35 and the holding plate 36 (see FIG. 4), and the support 34 and the support 3
5. Intake casing 37 and exhaust casing 39
Are disposed adjacent to each other in the outer box 21. At this time, the tip of the frame portion 36 a of the holding plate 36 is in contact with the inner surface of the outer box 21.

The mounting of the holding plate 36 causes the support 34 to be pressed in the mounting direction. In this case, since the support 34 has a so-called wedge shape, the support 34, the support 35, the intake casing 37, and the exhaust casing 39 are pressed against each other in the direction adjacent thereto.

In the above configuration, when the motor 42 is driven to rotate the intake blade 38 and the exhaust blade 40, first, the rotation of the intake blade 38 causes the rotation of the intake blade 38 as shown by an arrow A in FIGS. In the meantime, the outdoor air is
The air is sucked into the intake casing 37 through the intake port body 27 and the intake port 37b of the intake casing 37, and
It is discharged from the discharge port 37c of the casing 37 for intake and is supplied to the room through the intake opening 43 of the support 34, one ventilation path of the heat exchanger 33, and the ventilation hole 23a of the decorative plate 23.

On the other hand, as shown by an arrow B in FIG. 2, the room air flows through the ventilation holes 23a of the decorative plate 23 and the lower surface opening 21a of the outer box 21 on the side of the exhaust fan device 31 due to the rotation of the exhaust blades 40. The air is taken into the exhaust fan casing 39 through the suction port 39b of the exhaust fan casing 39, is discharged from the discharge port 39c of the exhaust fan casing 39, and communicates therewith.
4. The air is discharged outside through the other ventilation path of the heat exchanger 33, the cutout 48 of the support 35, the exhaust port 29, and the duct 30. Then, heat is exchanged between the exhaust gas and the intake air by the heat exchanger 33.

According to the present embodiment, the supporting members 34 and 35, the intake casing 37 and the exhaust casing 39 which are adjacent to each other are formed of flexible members, and the end faces which are the joint surfaces thereof are provided. 34e, 34f, 35d, one surface 37a and one surface 39a are formed in an inclined shape,
Are pressed in the mounting direction by a holding plate 36 mounted on the opening of the outer box 21.
4, 35, the intake casing 37 and the exhaust casing 39 are slightly flexibly deformed and come into pressure contact with each other in adjacent directions, so that they can be assembled without play and without gaps.

Further, in this embodiment, the supports 34, 35,
Since the intake casing 37 and the exhaust casing 39 are made of a flexible member, they are made of Styrofoam having an expansion ratio of 50 to 70, so that appropriate flexibility can be expected, and each component retains the initial fixed form. It can be pressed against each other.

In particular, since the support members 34 and 35, the intake casing 37 and the exhaust casing 39 have a heat insulating property in addition to the flexibility, the heat insulating property of the outer box 21 can be improved. Since the gaps at the joints between the support members 34 and 35, the intake casing 37, and the exhaust casing 39 can be eliminated, the intake air and the exhaust air do not touch the inner surface of the outer box 21 and the dew condensation does not occur. be able to.

FIGS. 10 to 12 show a second embodiment of the present invention. The second embodiment differs from the first embodiment in the following points. That is, the support 51 has a lower width Wc that is equal to that of the support 52 and the intake casing 37.
Also, the distance Wd is set to be equal to the distance Wd at the lower portion from the exhaust casing (not shown). The width Wa of the upper portion of the support 51 is set slightly larger than the separation Wb of the upper portion between the support 52, the intake casing 37, and the exhaust casing, as in the first embodiment. Also,
A plurality of protrusions 53 are formed on the lower end surface of the support 51. Further, as shown in FIG. 12, the support 52 has a structure in which a main plate 52d is integrally formed in addition to the upper plate 52a and the side plates 52b and 52c, and an exhaust port 54 is formed in the side plate 52b. Have been. The holding plate 55 has no portion corresponding to the frame portion 36a of the holding plate 36 in the first embodiment.

When the support 51 is inserted with a normal operating force from the state shown in FIG.
2. Exit from the lower ends of the intake casing 37 and the exhaust casing. From this state, the heat exchanger 33 is
1 and 52, and the holding plate 55 is attached to the lower surface opening of the outer box 21 by screwing (see FIG. 11). At this time,
With the attachment of the holding plate 55, the support 51 receives a pressing force via the protrusion 53, so that the support 51, the support 52,
The intake casing 37 and the exhaust casing come into pressure contact with each other in the adjacent direction. In this case, so-called point contact occurs at the protruding portion 53, and moderate flexible deformation (crushing) can be expected.
Can be properly inserted.

FIGS. 13 and 14 show a third embodiment of the present invention, which differs from the second embodiment in the following points. Support 61
Width dimension Wc of the support body 62 and the intake casing 3
7 and the clearance W at the lower part of the exhaust casing 39
The relationship with d is Wc> Wd (the relationship between Wa and Wb is the second
Wa> Wb), as in the embodiment, and a plurality of protrusions 63 are formed on the outer surface of the main plate portion 62d of the support body 62.

When the support 61 is inserted with a normal operating force from the state shown in FIG. 13, the support 61 comes out from the lower ends of the support 62, the intake casing 37 and the exhaust casing. From this state, the heat exchanger 33 is inserted into the supports 61 and 62, and the holding plate 55 is attached to the lower surface opening of the outer box 21 by screwing (see FIG. 14). At this time, the holding plate 55
The support 61 receives a pressing force due to the mounting of the support 61, whereby the support 62 is pressed in the lateral direction, and the protrusion 63 is appropriately flexibly deformed (crushed), so that the support 61, the support 62,
The intake casing 37 and the exhaust casing 39 are pressed against each other in adjacent directions. Also in this case, the support 61 can be properly inserted with an appropriate pressing force.

FIGS. 15 and 16 show a fourth embodiment of the present invention, which differs from the second embodiment in the following points. Support 7
1, the illustrated right surface portion 71a is inclined downward, and the intake casing 72 is inclined such that one surface 72a is upward and parallel to the right surface portion 71a. Although not shown, the exhaust casing is also formed in the same inclined state. In this embodiment, the intake casing 72
Is set to have a relation of Wa> wb with respect to an upper separation dimension Wb between the support 71 and the inner surface of the side plate of the outer box 21, and a lower width dimension Wc of the intake casing 72.
Is set to have a relationship of Wc> wd with respect to a lower clearance Wd between the support 71 and the inner surface of the side plate of the outer box 21.

When the intake casing 72 and the exhaust casing (not shown) are inserted with a normal operating force from the state shown in FIG. 15, the lower portions of the intake casing 72 and the exhaust casing come out from the lower end of the support 71. . From this state, the heat exchanger 33 is inserted into the supports 71 and 52, and the holding plate 55 is attached to the lower surface opening of the outer box 21 by screwing (see FIG. 16). At this time, the holding plate 55
As a result, the intake casing 72 and the exhaust casing receive the pressing force, and the support 52, the support 71, the intake casing 72, and the exhaust casing are pressed against each other in the adjacent direction. In this embodiment, the same effects as in the first embodiment can be obtained.

FIGS. 17 and 18 show a fifth embodiment of the present invention. The following points are different from the fourth embodiment. That is, in this embodiment, the support 81 has a configuration in which the supports 71 and 52 in the fourth embodiment are integrated. In the fifth embodiment, in addition to the same effects as those of the fourth embodiment, the number of parts can be reduced, and
Easy assembling can also be achieved.

FIGS. 19 and 20 show a sixth embodiment of the present invention. The following points are different from the fifth embodiment.
That is, the intake casing 91 has one surface 91a formed so as to be inclined downward, and the support 92 is inclined such that the illustrated right surface portion 92a is oriented upward and parallel to the one surface 91a. Although not shown, the exhaust casing is formed similarly to the intake casing 91. In this embodiment, the upper width dimension Wa of the support 92 is set to a relationship of Wa> wb with respect to the upper separation dimension Wb between the intake casing 91 and the inner surface of the side plate of the outer box 21. The lower width dimension Wc of the body 92 is set to have a relationship of Wc> wd with respect to a lower clearance dimension Wd between the intake casing 91 and the inner surface of the side plate of the outer box 21.

When the support 92 is inserted with normal operating force from the state shown in FIG. 19, the lower portion of the support 92 comes out from the lower end of the intake casing 91. From this state, the heat exchanger 33 is inserted into the support 92 and the holding plate 55
Is attached to the lower opening of the outer box 21 by screwing (FIG. 2).
0). At this time, by attaching the holding plate 55, the support 92 receives a pressing force, and the support 92, the intake casing 91, and the exhaust casing are pressed against each other in the adjacent direction. In this embodiment, the fifth
The same effect as that of the embodiment can be obtained.

FIGS. 21 to 23 show a seventh embodiment of the present invention. The following points are shown in FIGS.
Is different from the embodiment. That is, the support 101 has a configuration in which the projection 63 of the support 62 in the third embodiment is not provided.
The support 1 is attached to the side plate 21c facing the main plate 101a of the
The protruding piece 102 that protrudes toward the 01 side is formed by cutting and raising. The projecting piece 102 is formed so as to be elastically deformable. In the seventh embodiment, the same effects as in the third embodiment can be obtained. In this case, the protruding piece 102 does not need to be elastically deformable, and at this time, the supporting body 101 on the other side can be expected to be flexibly deformed.

FIGS. 24 to 26 show an eighth embodiment of the present invention. The following points are shown in FIGS.
Is different from the embodiment. In other words, the support 111 has a configuration in which the protrusion 43 of the support 51 in the second embodiment is not provided.
A protruding piece 112 as a protruding portion protruding toward the support body 111 is formed by cutting and raising the portion facing the lower end of the first member 1.
In this case, the protruding piece 112 is elastically deformable, but when the holding plate 55 is attached, a part of the support body 111 on the other side of the protruding piece 112 is flexibly deformed by the protruding piece 112. In the eighth embodiment, the same effect as in the second embodiment can be obtained.

The present invention is not limited to each of the above embodiments. For example, the protrusions may be provided on the intake casing 37 shown in FIG.
4 may be formed on each right side surface of the exhaust casing 39, or may be formed on the outer box 21 side. In short, the protrusions include: an inner casing formed of a flexible member; What is necessary is just to provide in either one of this and the adjacent inflexible member. Further, at least one of the plurality of inner casings may be formed of a flexible member.
In addition, the present invention is not limited to the embodiment described above and shown in the drawings, and can be variously modified and implemented without departing from the gist, for example, it can be widely applied to general air conditioners.

[0041]

As apparent from the above description, the present invention has the following effects. According to the first aspect of the present invention, a plurality of inner casings, at least one of which is made of styrene foam, are inserted from the opening and are adjacent to each other inside the outer box having one opening, and the outer casing is in an adjacent relationship. The joint surface of a certain inner casing is formed to be inclined, and the width dimension of the insertion end of one of the inner casings
Is larger than the width of the part where the inner casing is inserted.
Large, at least one inner casing,
Since the holding plate attached to the opening of the outer box presses in the mounting direction, it is possible to assemble the plurality of inner casings in a state where they are pressed against each other in the adjacent direction. It is possible to eliminate rattling and generation of gaps.

According to the second aspect of the present invention, the inner casing made of styrofoam and the non- foaming adjoining the inner casing are provided.
Since a protrusion to which the pressing force is applied by the holding plate is formed on one of the inner casing and the inner casing made of styrene foam , so-called point contact occurs at the protrusion, and appropriate flexible deformation can be expected. Thus, the pressing force can be made moderate.

According to the third aspect of the present invention, styrofoam
Since the foaming ratio is set to 50 to 70 , appropriate flexibility can be expected, the pressing force can be made more appropriate, and heat insulation can be expected, so that the heat insulation of the outer box can be sufficiently achieved. Also, dew condensation on the outer box can be prevented.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional side view of an intake fan device showing a first embodiment of the present invention.

FIG. 2 is a longitudinal sectional side view of an exhaust fan unit.

FIG. 3 is a longitudinal sectional side view showing a stage in which the support is being assembled.

FIG. 4 is a longitudinal sectional side view showing a heat exchanger assembled state.

FIG. 5 is a partially broken perspective view.

FIG. 6 is an exploded perspective view.

FIG. 7 is a bottom view showing a heat exchanger assembled state.

FIG. 8 is a perspective view of a decorative board.

FIG. 9 is a perspective view of a decorative plate supporting portion.

FIG. 10 is a view corresponding to FIG. 3, showing a second embodiment of the present invention;

FIG. 11 is a diagram corresponding to FIG. 4;

FIG. 12 is a perspective view of a support.

FIG. 13 is a view corresponding to FIG. 3, showing a third embodiment of the present invention.

FIG. 14 is a diagram corresponding to FIG. 4;

FIG. 15 is a view corresponding to FIG. 3, showing a fourth embodiment of the present invention;

FIG. 16 is a diagram corresponding to FIG. 4;

FIG. 17 is a view corresponding to FIG. 3, showing a fifth embodiment of the present invention.

FIG. 18 is a diagram corresponding to FIG. 4;

FIG. 19 is a view corresponding to FIG. 3, showing a sixth embodiment of the present invention;

FIG. 20 is a diagram corresponding to FIG. 4;

FIG. 21 is a view corresponding to FIG. 3, showing a seventh embodiment of the present invention.

FIG. 22 is a diagram corresponding to FIG. 4;

FIG. 23 is a perspective view of a protruding piece.

FIG. 24 is a view corresponding to FIG. 3, showing an eighth embodiment of the present invention;

FIG. 25 is a diagram corresponding to FIG. 4;

FIG. 26 is a perspective view of a protruding piece.

FIG. 27 shows a conventional example and is equivalent to FIG.

FIG. 28 is a diagram corresponding to FIG. 1;

FIG. 29 is a diagram corresponding to FIG. 2;

[Explanation of symbols]

21 is an outer box, 31 is an intake fan device, 32 is an exhaust fan device, 33 is a heat exchanger, 34 is a support (inner casing), 34e and 34f are end surfaces (joining surfaces), and 35d is an end surface (joining surface). ), 35 are supports (inner casing), 36
Is a holding plate, 37 is an intake casing (inner casing), 37a is one surface (joining surface), 39 is an exhaust casing (inner casing), 39a is one surface (joining surface), 51
Is a support, 52 is a support, 55 is a holding plate, 61 is a support, 62 is a support, 63 is a protrusion, 71 is a support, 72 is an intake casing, 81 is a support, and 91 is an intake casing. , 92 is a support, 101 is a support, 102 is a projection (projection), 111 is a support, and 112 is a projection (projection).

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) F24F 7/08 101

Claims (3)

(57) [Claims] 1. A plurality of inner casings, at least one of which is made of styrene foam, are inserted through the opening and are adjacent to each other inside an outer box having one open side, and the inner casings which are adjacent to each other are joined. The surface is formed in an inclined shape, and the insertion end of one of the inner casings is
The width is the width of the part where the inner casing is inserted
An air conditioner , which is set to be larger than the normal size, and wherein at least one inner casing is configured to be pressed in a mounting direction by a holding plate mounted on the opening of the outer box. 2. A is composed of a non-foamed polystyrene adjacent an inner casing made of foam polystyrene, and which
The air conditioner according to claim 1, wherein a protrusion to which a pressing force is applied by the holding plate is formed on one of the inner casing and the inner casing . 3. The expanded polystyrene has an expansion ratio of 50-7.
The air conditioner according to claim 1, wherein the value is zero .