JPH06147537A - Air conditioner - Google Patents

Abstract

PURPOSE:To install even in a place having a narrow lateral width and to facilitate an installation. CONSTITUTION:An air conditioner comprises a plurality of housings 1, 2 disposed in a ceiling space of a house in such a manner that the housings are stacked, vent ducts 7, 8 extended from the surfaces of the housings in the same direction. Thus, since it is not necessary to increase a lateral width, it can be installed in a place having a narrow lateral width. Further, since an operation for hanging the housing and a connecting operation for the ducts are facilitated, an installation is easily executed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air conditioner provided with a plurality of housings used as user side units.

[0002]

2. Description of the Related Art One having a plurality of heat exchangers on the use side and capable of cooling and heating a plurality of parts such as an interior part and a perimeter part in a building is disclosed in Japanese Patent Application Laid-Open No. 4-24441. There is. What is described in this publication is one in which a plurality of ventilation passages are formed in a floor-standing type utilization side unit, and the utilization side heat exchangers are respectively arranged in these ventilation passages.

Further, there is a device capable of heating and cooling a plurality of chambers as shown in FIG. In this system, a usage-side unit 60 dedicated to the perimeter section and a usage-side unit 61 dedicated to the interior section are arranged in the ceiling space, and the perimeter section 62 and the interior section 63 in the room can be individually cooled and heated. Then, individual heat source side units are connected to the use side units 60 and 61, respectively. Alternatively, a heat source side unit, such as the heat source side unit described in the above publication, capable of individually performing heating and cooling operation on a plurality of connected use side units is connected.

[0004]

SUMMARY OF THE INVENTION According to the above-mentioned publications, when the installation site of the usage side unit is required outdoors or the capacity exceeding the capacity of the usage side heat exchanger is required, etc. It had the drawback of not being available.

Further, the one shown in FIG. 6 does not require the installation site of the usage side unit outside the room, and when a large capacity exceeding the capacity of the usage side heat exchanger is required, the usage side of the large capacity is used. Although there is an advantage that the units can be exchanged, there is a drawback in that they cannot be installed in a place with a small horizontal space because a plurality of utilization side units are arranged side by side. In addition, if the ventilation ducts are arranged side by side, the ventilation ducts may be connected in different directions or may collide with each other, which makes it difficult to perform the installation work.

[0006] The present invention provides an air conditioner that can be installed in a place having a narrow width and is easy to install.

[0007]

SUMMARY OF THE INVENTION The present invention provides an air conditioner in which a plurality of housings, each having a built-in heat exchanger, a blower or the like and connected to ventilation ducts, are arranged in a ceiling space of a house. And the ventilation ducts are extended from the surfaces of these casings in the same direction.

[0008]

In this air conditioner, since the housings are stacked, the width is not required to be large. Moreover, since the casings are stacked and the ventilation duct extends from the surface of the casing in the same direction, it is easy to hang the casing or connect the ventilation ducts.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to the drawings.

In FIGS. 1 to 3, reference numerals 1 and 2 denote casings used as utilization side units, which are stacked in the ceiling space. Reference numerals 3 and 4 denote a heat exchanger and a blower built in the housing 1, and a heat exchanger 5 is similarly provided to the housing 2 [see FIG. 5].
And a blower [not shown].

The heights H and depths D of the casings 1 and 2 are set to be the same, and the width W2 of the casing 2 is set larger than the width W1 of the casing 1. This is because the refrigerating capacity of the housing 2 [for example, 4 horsepower] is larger than the refrigerating capacity of the housing 1 [for example, 1 horsepower], so that the heat exchanger and the like are larger and the width is wider.

Reference numeral 6 is a connecting portion of a ventilation duct 7 formed on the front surface of the housing 1, and 8 is a notch portion for connecting a humidifier. Similarly, a connection portion 10 of the ventilation duct 9 and a cutout portion 11 for connecting the humidifier are also formed on the front surface of the housing 2.

On the side surface of the housing 1, there is a connecting portion 12 for the refrigerant pipe,
Drain hose connection 13, electrical box 14, suspension 1
5, 16 are provided. Similarly, on the side surface of the housing 2, the connecting portion 17, the connecting portion 18, the electrical equipment box 19, and the hanging device 2
0 and 21 are provided.

The suspending tools 15 and 20 and the suspending tool 16
And 21 are provided at the same positions on the side surfaces of the housings 1 and 2, respectively, so that the same suspending bolt 22 is used to suspend the suspending tool 15,
20 is hung, and the same hanging bolt 23 is used to hang the hanging tool 1
6,21 are hung.

Reference numeral 24 is an assembly tool for assembling the housings 1 and 2, 25 is an inspection opening formed on the ceiling plate for maintenance, and 26 is attached so as to communicate with both suction openings of the housings 1 and 2. The suction chamber 27 is a ventilation duct that connects this chamber with the suction grill 28 [see FIG. 4].

FIG. 4 shows a schematic view of an installation example of the air conditioner viewed from the ceiling side. Reference numeral 29 is a blowout grill for the perimeter portion, which is connected to the housing 1 [shown by the diagonal line from the upper left to the lower right] by the ventilation duct 7. Reference numeral 30 denotes a blow-out grill for the interior part, which is connected to the housing 2 [shown by a diagonal line from the upper right to the lower left] by the ventilation duct 9.

In FIG. 5, reference numeral 31 denotes a heat source side unit, and the heat source side unit has an inter-unit pipe 32.
The housings 1 and 2 are connected via. The inter-unit pipe 32 is composed of two gas pipes and one liquid pipe.
The heat source side unit 31 includes a compressor 33 and a gas-liquid separator 3
4 and a heat source side heat exchanger 35 are incorporated, and a first switching valve 36A and a second switching valve 36B are connected to one end A of the heat source side heat exchanger. The first switching valve 36A is connected to the refrigerant discharge pipe 37 of the compressor 33, and the second switching valve 36A
B is connected to the refrigerant suction pipe 38 of the same compressor 33. 39 is a heat source side blower.

As described above, the heat source side unit includes
The inter-unit pipe 32 is connected. The inter-unit pipe 32 includes a liquid pipe 32B, a high-pressure gas pipe 32A, and a low-pressure gas pipe 32C. The liquid pipe 32 is connected to the other end B of the heat source side heat exchanger 35, while the high-pressure gas pipe 32A is The low pressure gas pipe 32C is connected to the refrigerant discharge pipe 37 and the low pressure gas pipe 32C is connected to the refrigerant suction pipe 3.
8 is connected. The liquid pipe 32B is branched into two in the middle, one branch liquid pipe 40A is connected to the heat exchanger 3 via the first refrigerant decompressor 41 such as an electric expansion valve, and the other branch liquid pipe 40A. 40B is also connected to the heat exchanger 5 via a second refrigerant pressure reducer 42 such as an electric expansion valve.
The heat exchanger 3 includes a first low pressure gas switching valve 43A and a first low pressure gas switching valve 43A.
Is connected to the high pressure gas switching valve 43B, and the first low pressure gas switching valve 43A is connected to a branched low pressure gas pipe 44A branched from the low pressure gas pipe 32C. The first switching valve 43B for high pressure gas is connected to a branched high pressure gas pipe 45A branched from the high pressure gas pipe 32A. A second low-pressure gas switching valve 46A and a second high-pressure gas switching valve 46B are connected to the heat exchanger 5, and the second low-pressure gas switching valve 4 is connected.
6A is a branched low-pressure gas pipe 4 branched from the low-pressure gas pipe 32C
4B, and the second high-pressure gas switching valve 46B is connected to a branched high-pressure gas pipe 45B branched from the high-pressure gas pipe 32A.

When the switching valve 43A is opened and the switching valve 43B is closed, cooling can be performed in the housing 1, and when the switching valve 43A is closed and the switching valve 43B is opened, heating is performed in the housing 1. It can be carried out.

Similarly, in the case 2, when the switching valve 46A is opened and the switching valve 46B is closed, cooling can be performed, and the switching valve 46A is closed and the switching valve 46B is closed.
When is opened, heating can be performed.

In the air conditioner thus constructed, the housings 1 and 2 are stacked, and the lateral width does not need to be large. Therefore, the housings 1 and 2 can be installed even in a narrow lateral width. . Moreover, since the casings 1 and 2 are stacked and the ventilation ducts 7 and 9 extend from the surfaces of the casings 1 and 2 in the same direction, it is possible to suspend the casings 1 and 2. Since it is easy to connect the ventilation ducts 7 and 9, the installation work can be facilitated. Particularly, in this air conditioner, since the suction grill 28, the ventilation duct 27, and the suction chamber 26 are used as a common suction passage for the housings 1 and 2, installation work is reduced.

As can be seen from FIG. 3, the parts to be maintained, for example, the connecting parts 12 and 17 of the refrigerant pipes, the connecting parts 13 and 18 of the drain hose, and the electrical equipment boxes 14 and 19 are on one side, so that maintenance is possible. In the case of performing all, maintenance can be performed from the inspection port 25.

Furthermore, since the housings 1 and 2 which are separate bodies are used in this air conditioner, it is possible to replace the housings with different capacities according to the demand of the refrigerating capacity and use them. .

[0024]

The present invention is an air conditioner in which a plurality of housings, each having a built-in heat exchanger, a blower or the like and connected to ventilation ducts, are arranged in the ceiling space of a house, and the housings are stacked and Since the ventilation duct is extended from the surfaces of these casings in the same direction, it is not necessary to have a large lateral width, and therefore it can be installed in a place having a small lateral width. Moreover, since it is easy to hang the case and connect the ventilation ducts, the installation work can be facilitated.

[Brief description of drawings]

FIG. 1 is a front view of an air conditioner showing an embodiment of the present invention.

FIG. 2 is a plan view of the air conditioner.

FIG. 3 is a side view of the air conditioner.

FIG. 4 is a schematic view showing an installation example of the air conditioner.

FIG. 5 is a refrigerant circuit diagram showing a heat source side unit of the air conditioner.

FIG. 6 is a schematic view showing an installation example of a conventional air conditioner.

[Explanation of symbols]

 1, 2 Housing 3, 5 Heat exchanger 4 Blower 7, 9 Ventilation duct

Claims (1)

[Claims] 1. An air conditioner in which a plurality of housings, each having a built-in heat exchanger, a blower, etc. and connected to ventilation ducts, are arranged in a ceiling space of a house, and the ventilation ducts are stacked while the housings are stacked. An air conditioner characterized by being extended from surfaces of these casings in the same direction.