JPH09133402A - Air conditioner embedded in wall - Google Patents

Abstract

PROBLEM TO BE SOLVED: To achieve space-saving by making an air conditioner thinner, thereby improving the degree of freedom of setting the same and further improving the external appearance thereof. SOLUTION: An air conditioner has an outdoor unit 3 and an indoor unit 2 superposed on the upside thereof, both the units being provided in a main body casing 1 embedded and set in a wall 50. The indoor unit 2 is provided with an indoor heat exchanger 6 and an indoor fan 8 composed of a cross flow fan. The outdoor unit 3 consists of an air-conditioning unit 3a and a mechanical unit 3b, which are vertically superposed on each other, and the air-conditioning unit 3a is provided with an outdoor heat exchanger 7 and an outdoor fan 9 composed of a cross flow fan, while the mechanical unit 3b is provided with a compressor 10. The indoor fan 8 has a fan rotor 8a whose axial direction is laterally arranged along the surface of the wall 50, and the outdoor fan 9 has a fan rotor 9a whose axial direction is vertically arranged along the surface of the wall 50, respectively.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wall-embedded air conditioner installed by being embedded in a wall.

[0002]

2. Description of the Related Art As a conventional example of a wall-embedded air conditioner which is installed by being embedded in the wall of a building such as a house, for example, Japanese Patent Publication No. 62-1490, Japanese Patent Publication No. 62-131125, or The thing described in Japanese Utility Model Publication No. 61-32266 can be mentioned. FIG. 5 is a transparent side view showing a schematic configuration of a wall-embedded air conditioner described in Japanese Patent Publication No. 62-1490. In this wall-embedded air conditioner, an air conditioner main body 31 includes an indoor unit 32 and an outdoor unit 33, and an indoor fan 38 and an indoor heat exchanger 36, which are sirocco fans, are installed in the indoor unit 32. While being placed in the outdoor unit 33
An outdoor fan 39, which is a propeller fan, an outdoor heat exchanger 37, and a compressor 40 are arranged side by side in the interior as shown in FIG. The indoor unit 32 is embedded in the wall 50 on the floor 46, while the outdoor unit 33 is under the floor 4
It was arranged in No. 7, so that the space can be saved and the appearance can be improved.

[0003]

However, the above-mentioned conventional wall-embedded air conditioner has the following problems. First, regarding the indoor unit 32, since the indoor fan 38 is constituted by a sirocco fan, it is necessary to separately secure a space serving as an air path in the indoor unit 32. Therefore, there is a limitation in reducing the thickness of the indoor unit 32, and depending on the thickness of the wall 50, the wall
Since it may not be possible to completely embed it inside, there are problems that the buildings that can be installed are limited and that the appearance cannot be sufficiently improved. On the other hand, in the outdoor unit 33, the outdoor heat exchanger 37, the outdoor fan 39, and the compressor 40 are arranged in parallel. Therefore, the outdoor unit 33 cannot be installed in the wall 50, and the outdoor unit 33 is placed outside the building under the floor 47 to impair the appearance, and the installation target is limited only to a building having a sufficient installation space under the floor 47. There was a problem. Further, according to the one disclosed in Japanese Utility Model Publication No. 61-32266, since the outdoor fan embedded in the wall is composed of a propeller fan, the indoor unit 32 described above is used.
The same problem as that of the above-mentioned problem occurs, and further, JP-A-62-
In the one described in Japanese Patent No. 131125, since the indoor heat exchanger and the outdoor heat exchanger are arranged in parallel, the outdoor unit 33
The same problem that occurred in.

The present invention has been made in order to solve the above-mentioned conventional drawbacks, and an object thereof is to further reduce the thickness to save a space, thereby improving the installation flexibility and the appearance. An object is to provide a wall-embedded air conditioner that can be improved.

[0005]

Therefore, a wall-embedded air conditioner according to a first aspect of the present invention has an indoor unit 2 and an outdoor unit 3 in a main body casing 1 which is installed by being embedded in a wall 50. The indoor unit 2 includes an indoor fan 8 and an indoor heat exchanger 6, and the air in the room 48 sucked by the indoor fan 8 is heat-exchanged by the indoor heat exchanger 6 and blown back to the room 48. On the other hand, the outdoor unit 3 includes the compressor 10, the outdoor fan 9, and the outdoor heat exchanger 7, and the air of the outdoor 49 sucked by the outdoor fan 9 is heat-exchanged by the outdoor heat exchanger 7. In the wall-embedded air conditioner configured to blow out to the outdoor 49 again, the indoor fan 8 and the outdoor fan 9 are configured by a cross flow fan, and the indoor unit 2 and the outdoor unit are connected. And bets 3 is characterized in that the vertically stacked in the main body casing 1.

According to the wall-embedded air conditioner of claim 1,
Since the indoor fan 8 and the outdoor fan 9 are configured by the cross flow fan, it is possible to reduce the space required for the air passage and to further reduce the space by making the units 2 and 3 thinner. Become. Moreover, since the indoor unit 2 and the outdoor unit 3 are vertically stacked, it is possible to further reduce the thickness of the air conditioner and save space.

In the wall-embedded air conditioner according to a second aspect of the present invention, the outdoor unit 3 is composed of two units 3 which are vertically stacked.
a and 3b, the outdoor fan 9 and the outdoor heat exchanger 7 are arranged in one unit 3a, and the other unit 3
It is characterized in that the compressor 10 is arranged at b.

In the wall-embedded air conditioner according to claim 2,
Since the outdoor fan 9, the outdoor heat exchanger 7, and the compressor 10 are arranged vertically, it is possible to save space in the lateral direction.

Furthermore, the wall-embedded air conditioner according to claim 3 is
The indoor unit 2 is characterized by being laminated on the upper side of the outdoor unit 3.

In the wall-embedded air conditioner according to claim 3,
It becomes possible to arrange the indoor unit 2 on the upper portion of the wall 50, and thus, the appearance becomes substantially the same as the appearance of the conventional wall-mounted air conditioner.

In the wall-embedded air conditioner according to a fourth aspect, the fan rotor 9a of the cross flow fan constituting the outdoor fan 9 is arranged so that its axial direction is the vertical direction. There is.

In the wall-embedded air conditioner according to claim 4,
It is possible to make the axial length of the fan rotor 9a forming the outdoor fan 9 not limited to the lateral dimension of the wall 50.

In the wall-embedded air conditioner according to a fifth aspect of the present invention, the fan rotor 8a of the cross-flow fan constituting the indoor fan 8 is arranged so that its axial direction is lateral along the wall 50 surface. It is characterized by

In the wall-embedded air conditioner according to claim 5,
It is possible to blow the air that has undergone the heat exchanger laterally into the room 48.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, specific embodiments of the wall-embedded air conditioner of the present invention will be described in detail with reference to the drawings.

FIG. 1 is a diagram showing a schematic construction of the wall-embedded air conditioner, wherein FIG. 1 (a) is a transparent front view thereof,
Further, (b) is a transparent side view thereof. As shown in the figure, this wall-embedded air conditioner has an indoor unit 2 and an outdoor unit 3 in a rectangular parallelepiped main body casing 1 installed by being embedded in a wall 50. The indoor unit 2 is laminated on the inside. The indoor unit 2 includes an indoor heat exchanger 6 that functions as a condenser or an evaporator in the refrigerant circuit, and an indoor fan 8 that is a cross flow fan. The cross-flow fan constituting the indoor fan 8 has a fan rotor 8a whose axial direction is laterally arranged along the surface of the wall 50 and is driven by a fan motor 8b, and a fan rotor 8a arranged behind the fan rotor 8a to form a wind path. A scroll section 8c for
And a tongue portion (not shown) formed in a part of the drain pan 11 of the indoor heat exchanger 6 described above. Air is sucked from the room 48 and blown into the room 48 again. is there. Further, in FIG. 2A, a portion 2c provided on the right side of the indoor heat exchanger 6 and the like is an indoor unit side piping chamber, and this piping chamber 2c connects the indoor heat exchanger 6 to the refrigerant circuit. It is used as a space for arranging communication pipes (not shown) and the like.

On the other hand, the outdoor unit 3 further comprises an air conditioning unit 3a and a mechanical unit 3b, and the air conditioning unit 3a is laminated on the mechanical unit 3b. In the same refrigerant circuit as the indoor heat exchanger 6, the air conditioning unit 3a functions as an evaporator when the indoor heat exchanger 6 functions as a condenser, and the indoor heat exchanger 6 functions as an evaporator. An outdoor heat exchanger 7 that sometimes functions as a condenser and an outdoor fan 9 configured by a cross flow fan are provided. The cross-flow fan that constitutes the outdoor fan 9 is configured such that a fan rotor 9a driven by a fan motor 9b is arranged with its axial direction up and down, and further includes a tongue portion and a scroll portion (both not shown). In contrast to the indoor unit 2, the air is sucked from the outdoor 49 and blown out to the outdoor 49 again. Further, in FIG. 4A, a portion 3c provided on the right side of the fan rotor 9a is an outdoor unit side piping chamber, and this piping chamber 3c connects the outdoor heat exchanger 7 and the indoor heat exchanger 6 to a refrigerant circuit. It is used as a space for arranging communication pipes (not shown) for connection. Further, the mechanical unit 3b includes a vertical compressor 10, and the compressor 10 constitutes the same refrigerant circuit together with the indoor heat exchanger 6 and the outdoor heat exchanger 7.

In the wall-embedded air conditioner configured as described above, the surface 2d on the outlet side and the inlet side of the indoor unit 2 is
The main body casing 1 is installed by embedding it in the wall 50 so that the surface 3d of the outdoor unit 3 which faces the outlet side and the suction side faces the outdoor 49. Then, the compressor 10 is driven to operate the refrigerant circuit,
When the fan motors 8b and 9b are driven, the air sucked from the room 48 is heat-exchanged by the indoor heat exchanger 6, and the flow direction is changed to the indoor side by the scroll portion 8c while traversing the inside of the fan rotor 8a. It is blown out into the room 48 again. On the other hand, in the outdoor unit 3, the air sucked from the outdoor 49 is heat-exchanged by the outdoor heat exchanger 7, and this is again blown to the outdoor 49. Therefore, at this time, when the indoor heat exchanger 6 functions as a condenser and the outdoor heat exchanger 7 functions as an evaporator, the room 48 is heated, and the indoor heat exchanger 6 functions as an evaporator.
When the outdoor heat exchanger 7 functions as a condenser, the room 48 is cooled.

In the wall-embedded air conditioner as described above, the air sucked from the indoor 48 or the outdoor 49 by the indoor fan 8 or the outdoor fan 9 is sucked in again.
That is, it is necessary to be configured to blow back to the indoor 48 or the outdoor 49. Therefore, in the above wall-embedded air conditioner, the indoor fan 8 and the outdoor fan 9 are constituted by cross flow fans. In the cross flow fan, the rotation of the fan rotors 8a and 9a and the action of the tongue portion (not shown) provided in the vicinity of the fan rotors 8a and 9a cause the fan rotor 8
An eccentric vortex having a vortex center is generated inside a and 9a, and air flows into the fan rotors 8a and 9a as a part of the flow of the eccentric vortex from the suction side (indoor 48 or outdoor 49), and this further increases. 8a and 9a are crossed in the diametrical direction, and again flow out to the suction side (indoor 48 or outdoor 49). That is, the cross-flow fan has a function of blowing air back to the side where it is sucked into the structure itself, so that the space required to form the air passage is greatly reduced, and thus the indoor unit 2 and The outdoor unit 3 can be made thinner. Moreover, by stacking the indoor unit 2 and the outdoor unit 3 vertically, the heat exchangers 6 and 7 and the fans 8 and 9 are not arranged side by side in the thickness direction, so that the main body casing 1 is further thinned. can do. The wall-embedded air conditioner thus thinned has a thickness of about 1
Wall 5 having a thickness of about 20 mm and a thickness of 120 to 140 mm
0 can be completely embedded. Therefore, it is possible to improve the degree of freedom of installation, have a beautiful finish with no portion protruding from the wall 50, and improve the external appearance such as interior and exterior characteristics.

The wall 50 in which the wall-embedded air conditioner is installed generally has a space in the vertical direction rather than in the horizontal direction. This is because a substantially uniform ceiling height is ensured in the vertical direction, while the horizontal direction is different depending on how the room is used and the design of the building. Therefore, in the above wall-embedded air conditioner, the outdoor unit 3 is further configured by the air conditioning unit 3a and the mechanical unit 3b, and by stacking these vertically, a space saving in the lateral direction in the wall 50 is achieved and installed. The degree of freedom can be improved. Further, in the above wall-embedded air conditioner, the machine unit 3b is provided with the vertical compressor 10, but a horizontal compressor may be provided to further save space in the vertical direction. Further, when the indoor unit 2 and the outdoor unit 3 are vertically stacked, the indoor unit 2 is placed on the upper side. Therefore, when it is placed in the wall 50, it has an appearance similar to that of a conventional wall-mounted air conditioner, so that the interior quality can be improved.

Further, the fan rotor 9a of the cross flow fan which constitutes the outdoor fan 9 is arranged such that its axial direction is vertical. As described above, there is more space in the vertical direction in the wall 50 than in the horizontal direction. Therefore, if the fan rotor 9a is arranged as described above, its axial length can be made sufficiently large. it can. Therefore, a sufficient amount of air blown in the outdoor unit 3 can be secured. On the other hand, the fan rotor 8a of the cross flow fan that constitutes the indoor fan 8 is arranged along the surface of the wall 50 in the lateral direction. Therefore, by blowing the heat-exchanged conditioned air widely into the room 48, the comfort of use can be improved.

Although specific embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and various modifications can be made within the scope of the present invention. For example, in the above wall-embedded air conditioner, the axial direction of the fan rotor 8a of the indoor fan 8 is laterally arranged, and the axial direction of the fan rotor 9a of the outdoor fan 9 is vertically arranged. As shown, the axial direction of both fans 8a and 9a may be arranged laterally. With this configuration, when the wall 50 has a sufficient space in the lateral direction, it is possible to improve the installation flexibility of the wall-embedded air conditioner. Further, in the wall-embedded air conditioner shown in FIG. 2, the outdoor unit 3 may be composed of an air conditioning unit 3a and a mechanical unit 3b arranged side by side in the lateral direction as shown in FIG. In this way, when there is more room in the wall 50 in the axial direction than in the vertical direction, it can be suitable for this. Furthermore, in the wall-embedded air conditioner shown in FIG. 3, the fan rotors 8a, 9a of the indoor fan 8 and the outdoor fan 9 may be arranged such that their axial directions are arranged vertically as shown in FIG. Good. This makes it possible to make full use of the space in the vertical direction and obtain a large amount of air blown by the indoor fan 8 and the outdoor fan 9. Further, the axial direction of the fan rotors 8a and 9a and the arrangement relationship between the air conditioning unit 3a and the mechanical unit 3b are not limited to the above, and various combinations are possible. That is, there are four kinds of combinations in the arrangement direction of the fan rotors 8a and 9a, and two kinds of arrangement relationships between the air conditioning unit 3a and the mechanical unit 3b can be adopted for each combination, so that there are a total of eight kinds of configurations. It is possible. Therefore, the optimum combination can be selected in consideration of all of the space allowance in the wall 50, the required air flow rate, the required use comfort, and the like.

[0023]

In the wall-embedded air conditioner according to the first aspect of the present invention, it is possible to save space by further reducing the thickness, so that it is possible to improve the installation flexibility. It is possible to improve the appearance.

According to the wall-embedded air conditioner of claim 2,
Since it is possible to save space in the lateral direction, it is possible to further improve the degree of freedom in installation.

Further, in the wall-embedded air conditioner of the third aspect, the appearance is similar to that of the conventional wall-mounted air conditioner, so that the interior quality can be improved.

According to the wall-embedded air conditioner of the fourth aspect, it is possible to secure a sufficient air flow rate in the outdoor unit and improve the air conditioning capacity.

In the wall-embedded air conditioner according to the fifth aspect, it is possible to improve the use comfort.

[Brief description of the drawings]

FIG. 1 is a diagram showing a schematic configuration of an embodiment of a wall-embedded air conditioner of the present invention, in which (a) is a transparent front view and (b) is a transparent side view.

FIG. 2 is a transparent front view showing a schematic configuration of a modified example of the wall-embedded air conditioner.

FIG. 3 is a transparent front view showing a schematic configuration of a modified example of the wall-embedded air conditioner.

FIG. 4 is a transparent front view showing a schematic configuration of a modified example of the wall-embedded air conditioner.

FIG. 5 is a transparent side view showing a schematic configuration of a conventional wall-embedded air conditioner.

[Explanation of symbols]

 1 Main body casing 2 Indoor unit 3 Outdoor unit 3a Air conditioning unit 3b Mechanical unit 6 Indoor heat exchanger 7 Outdoor heat exchanger 8 Indoor fan 8a Fan rotor 9 Outdoor fan 9a Fan rotor 10 Compressor 48 Indoor 49 Outdoor 50 wall

Claims (5)

[Claims] 1. An indoor unit (2) and an outdoor unit (3) are provided in a main body casing (1) installed by being embedded in a wall (50), and the indoor unit (2) is an indoor fan (1). 8) and the indoor heat exchanger (6), the air in the room (48) sucked by the indoor fan (8) is heat-exchanged in the indoor heat exchanger (6), and then the indoor heat exchanger (6) is again used.
8), the outdoor unit (3) comprises a compressor (10), an outdoor fan (9) and an outdoor heat exchanger (7), and sucks in by the outdoor fan (9). In the wall-embedded air conditioner configured such that the air outside the room (49) is heat-exchanged by the outdoor heat exchanger (7) and blown out again to the room outside (49), the indoor fan (8) and The outdoor fan (9) is constituted by a cross-flow fan, and the indoor unit (2) and the outdoor unit (3) are vertically stacked inside the main body casing (1). Machine. 2. The outdoor unit (3) is composed of two units (3a) and (3b) that are vertically stacked, and one unit (3a) has an outdoor fan (9) and an outdoor heat exchanger (7). And the compressor (10) is disposed in the other unit (3b). 3. The wall-embedded air conditioner according to claim 1, wherein the indoor unit (2) is laminated on the upper side of the outdoor unit (3). 4. The fan rotor (9a) of a cross flow fan constituting the outdoor fan (9) is arranged such that its axial direction is the vertical direction. Wall-embedded air conditioner of any of 3 above. 5. A fan rotor (8a) of a cross-flow fan constituting the indoor fan (8) is arranged such that its axial direction is lateral along a wall (50) surface. The wall-embedded air conditioner according to any one of claims 1 to 4.