JPH0460322A - Air conditioner - Google Patents

Abstract

PURPOSE:To provide an efficient arrangement of various kinds of devices by a method wherein three storing chambers are formed within a single case, a heat source side heat exchanger is stored in a central storing chamber, one utilization side heat exchanger and a fan are stored in one storing chamber and remaining devices are stored in the other storing chamber. CONSTITUTION:An inside part of a case 1 is divided into storing chambers A, B and C by the first partition plate 3 and the second partition plate 5. The first perimeter compressor 11 and the second interior compressor 13 are fixed to a bottom plate 4 of the storing chamber A. Accumulators 12 and 14 are connected to each of the compressors, and then a fan 15 for a heat source side heat exchanger is fixed to the first partition plate 3. A control box 17 is disposed. A heat source side heat exchanger 19, a surrounding air intake mechanism 20 and a drain discharging mechanism 21 are arranged in side-by-side relation on a bottom plate 6 in the storing chamber B. The first perimeter utilization side heat exchanger 22 is inclined and fixed in an upper spacing of the storing chamber C, a drain pan 23 is disposed below it and further below it is disposed a fan 25 for the utilization side heat exchanger.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention is a system for storing equipment constituting a refrigeration cycle, such as a heat source side heat exchanger, a compressor, a user side heat exchanger, and a fan, in a single housing. The present invention relates to an air conditioner made by:

[Conventional technology]

In general, air conditioners are known in which the equipment that makes up the refrigeration cycle, such as a heat source side heat exchanger, a compressor, a user side heat exchanger, and a fan, are housed in a single floor-standing housing ( Utility Model Publication No. 5352253). Although this type of device has a compact configuration, there is only one heat exchanger on the heat source side and one heat exchanger on the user side, and the number of devices to be housed in the housing is not so large.

In contrast, in recent years, the perimeter and interior of buildings are individually air-conditioned, and this type of system requires at least two heat exchangers on the heat source side and two or more heat exchangers on the user side. It is quite cumbersome to house these devices in a single housing.

In order to compactly house a large number of these devices in a single housing, perimeter and interior heat source side heat exchangers are interposed between the same outside air intake and fan, and An air conditioner in which a user-side heat exchanger and a fan are installed in the ceiling has been proposed (Japanese Utility Model Publication No. 62192131). In this type of conventional system, in order to compactly store a large number of devices in a single housing, devices such as compressors, accumulators, piping, etc. are placed between the heat source side heat exchanger and the fan. is interposed.

[Problem to be solved by the invention]

However, since pressurized outside air is pumped between the heat source side heat exchanger and the fan, the conventional configuration has a problem in that the outside air hits various devices, causing vibrations and noise.

In addition, since a single housing is usually installed under a window, the installation space is limited, and in order to store the above equipment in a narrow space, the arrangement must be devised. There is.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to solve the above-mentioned problems of the conventional technology, and 'to efficiently arrange various devices in a single housing while sufficiently suppressing noise, etc. The objective is to provide an air conditioner that can

[Means to solve the problem]

In order to achieve the above object, the present invention provides equipment such as one user-side heat exchanger, one compressor, one fan, one heat source-side heat exchanger, etc. that regulates the temperature of indoor air, and In an air conditioner in which equipment such as the other compressor, the other fan, and the other heat source side heat exchanger connected to the other user side heat exchanger, which are separately arranged in a single housing, are housed in a single housing. , three storage chambers are formed in a single housing, one and the other heat source side heat exchanger are integrally stored in the central storage chamber, and one of the heat exchangers is stored in the storage chamber on the other side. Stores the side heat exchanger and one fan,
It is characterized by the fact that the remaining equipment is stored together in the storage room on the other side.

[For production]

According to the present invention, since one and the other heat source side heat exchangers are housed integrally in the central storage chamber, the configuration is compact, and there is no need to prevent any obstructions near the heat source side heat exchangers. Since there are no objects, the efficiency of heat exchange is improved, and since the outside air does not hit any obstructive shielding objects, noise sources can be cut off. The equipment and the fan on one side are stored together, and the other equipment is stored together in the storage room on the other side, making piping between various equipment easier, and it is possible to easily connect each storage room. Since they are stored separately, countermeasures can be taken for each noise source at once.

(Example) Hereinafter, an example of an air conditioner according to the present invention will be described with reference to the accompanying drawings.

In FIG. 1, reference numeral 1 designates a housing, and inside this housing 1 are first, second, and third storage chambers partitioned by a first partition plate 3 and a second partition plate 5. A, B, and C are formed. An outside air introduction hole 7 is opened in the back plate 2 of the first storage chamber A partitioned by the first partition plate 3. The second partition plate 5 has a cross-sectional shape, and the back plate 2 of the second storage chamber B partitioned by the second partition plate 5 and the first partition plate 3 has a discharge hole 9. is open. Note that a thin outer plate (not shown) is screwed to the front and top surfaces of the casing 1, and these screws are provided with a sealing material. This is to seal rainwater and the like (described later) into the housing 1.

The bottom plate 4 of the first storage chamber A has a first (
One) compressor 11 and a second (other) interior compressor 13 are fixed, and each compressor 11, 13 is connected to an accumulator 12, 14 via piping (not shown). has been done.

Furthermore, a fan 15 for the heat source side heat exchanger is fixed to the first partition plate 3.

17 is a control box.

A heat source side heat exchanger 19 is disposed on the bottom plate 6 of the second storage chamber B, and an outside air intake mechanism 20 and a drain discharge mechanism are disposed on the bottom plate 6 in front of the heat source side heat exchanger 19. 21
are arranged side by side. This drain discharge mechanism 21 includes a drain hole 21a and a guide plate 2Lb.

In the upper space of the third storage chamber C, a first (one) user-side heat exchanger 22 for a perimeter is tilted and fixed, and at the bottom of this first user-side heat exchanger 22. A drain pan 23 is provided.

A drain hose 24 passing through the partition plate 5 is connected to the drain pan 23, and the drain collected in the drain pan 23 is concentrated in the drain discharge mechanism 21 through the drain hose 24. This drain hose 24 is arranged in a meandering manner as shown in the figure.
Drain is always stored in the U-shaped bent portion 24a. This is to prevent drain from flowing back to the drain pan 23 side due to the wind pressure from the fan 15. Also,
In the lower space of the first user-side heat exchanger 22, a fan 25 for the user-side heat exchanger is arranged in parallel.

The bottom of the housing 1 has a double bottom as shown in FIG.
The above-mentioned two bottom plates 4 and 6 are attached with the bottom plates 4 and 6 sandwiched therebetween. 2
A step 29 is formed between the bottom plates 4 and 6.
is higher than the bottom plate 6. According to this, all of the drain that collects on the bottom plate 4 flows onto the bottom plate 6, and since the drain discharge mechanism 21 is attached to the bottom plate 6 as described above, the drain on the bottom plates 4 and 6 flows into the bottom plate 6. effectively drained.

Next, the refrigeration cycle of this embodiment will be explained with reference to FIG. Inside the housing 1, a first compressor 11, an accumulator 12, a first four-way valve 30, a first usage side heat exchanger 22, a strainer 60, an electric expansion valve 61, and a heat source side heat Exchangers 19 are connected to each other via piping, thereby configuring a first refrigeration cycle S1 for the perimeter.

As shown in FIG. 4, this heat source side heat exchanger 19 has two
The refrigerant passages 35, 37 of the system are incorporated, and one refrigerant passage 35 is connected to the first (one) user-side heat exchanger 22, as described above.

In addition, the other refrigerant passage 37 is connected to a second (
The other heat exchanger 32 is connected to the user side heat exchanger 32.

This second user-side heat exchanger 32 is housed in a user-side housing 39, as shown in FIG. 3, and this user-side housing 39 is connected to the housing 1 as shown in FIG. is another location, e.g.
It is installed in the ceiling 38, etc. The user-side casing 39 is connected to the casing 1 by piping, and the casing 1 is placed below the window 41 of the building. As mentioned above, the back plate 2 of the housing 1 has an introduction hole 7 and an exhaust hole 9 that communicate with the outside air.
These holes 7.9 communicate with openings 42 formed in the outer wall of the building.

Therefore, as shown in FIG. 5, this second user-side heat exchanger 32 is used to individually air-condition an interior I that is separate from the perimeter P that is air-conditioned by the first user-side heat exchanger 22. It is located.

The second usage-side heat exchanger 32 in the usage-side housing 39 is
As is clear from the figure, it is connected to various devices inside the housing 1 via piping, thereby forming a second refrigeration cycle S2 for interior use. That is, this second refrigeration cycle S2 includes the second user-side heat exchanger 3
2, a strainer 62, an electric expansion valve 63, a second four-way valve 40, a second compressor 13, an accumulator 14, and a heat source side heat exchanger 19.

Next, the operation of this embodiment will be explained.

In FIG. 3, solid arrows 45 indicate the flow of refrigerant in the cooling cycle, and dashed arrows 46 indicate the flow of refrigerant in the heating cycle.

That is, according to this embodiment, the first and second four-way valves 30.
By switching 40, the flow of the refrigerant can be arbitrarily switched. Therefore, the first user heat exchanger 22 and the second
The user-side heat exchanger 32 can be operated as a condenser or an evaporator, and the perimeter P and interior I can be individually cooled or heated.

When cooling or heating the perimeter P and the interior (2) in this way, heat exchange is performed between the refrigerants flowing in the two refrigerant passages 35, 37 in the heat source side heat exchanger 19.

For example, when the first user-side heat exchanger 22 acts as a condenser to heat the perimeter P, and the second user-side heat exchanger 32 acts as an evaporator to cool the interior I. is absorbed in the refrigerant passage 35 and radiated in the refrigerant passage 37.

According to this embodiment, as shown in FIG.
Since the respective refrigerant passages 35 and 37 partially intersect with the flow direction 48 of the outside air passing through the heat source side heat exchanger 19, the heat radiated within the refrigerant passage 37 is dissipated at this intersection 50. Since heat is absorbed within the refrigerant passage 35, extremely efficient heat exchange is performed.

In the first storage chamber A, there is a housing 1 as shown in FIG.
Outside air is introduced through an inlet hole 7 formed in the back plate 2 of the back plate 2, and this outside air cools various devices stored in the first storage chamber A. Thereafter, the fan 15 moves the outside air to the second storage chamber A. It is pumped into B.

Conventionally, various devices in the first storage chamber A are wrapped with a heat insulating material, but in this example, it is not necessary to wrap the heat insulating material. That is, the heat radiated from various devices is forced into the second storage chamber B by the fan 15. In addition,
Since this heat is recovered by the first user-side heat exchanger 22, the thermal efficiency of the refrigeration cycle is improved.

In the first storage chamber A, water droplets are generated on the surfaces of pipes and the like when various types of equipment are cooled, and these water droplets become drains and are collected on the bottom plate 4. Further, in the event of a typhoon or rainy weather, rainwater enters through the introduction hole 7, and this rainwater becomes a drain and is collected on the bottom plate 4.

According to this embodiment, since the drain is discharged via the drain discharge mechanism 21 of the bottom plate 6 as described above, the drain does not remain on the bottom plate 4. Therefore, the bottom plate 4 will not be corroded by the drain.

Furthermore, even if the bottom plate 4 corrodes due to drainage, the bottom of the housing 1 is double-bottomed as shown in FIG. 2, so the drainage will not leak onto the floor of the building.

The outside air is sent into the second storage chamber B by the fan 15, and this outside air passes between the fins (not shown) of the heat source side heat exchanger 19 and reaches the back side of the heat source side heat exchanger 19. It rotates and is discharged from the discharge hole 9 formed in the back plate 2 of the casing 1.

According to this embodiment, since no shield protrudes in front of the heat source side heat exchanger 19, the flow of outside air is not disturbed, and the outside air is almost uniform over the entire surface of the heat source side heat exchanger 19. , so efficient heat exchange takes place. If the shield protrudes, not only will the efficiency of heat exchange deteriorate, but the outside air will collide with the shield, causing vibrations and generating noise. However, according to this embodiment, since no shield protrudes in front of the heat source side heat exchanger 19, no noise is generated therefrom.

In addition, in the second storage chamber B, the heat source side heat exchanger 19
Since the pressure in the space in front of the vehicle is relatively high, the outside air intake mechanism 20 is operated by utilizing this high pressure. When the outside air intake mechanism 20 is activated, the lid 20a opens and fresh outside air in the second storage chamber B is led into the building.

Air inside the building is introduced into the third storage chamber C, and this air is forced by the fan 25 and passes between the fins (not shown) of the first user-side heat exchanger 22. The heat flows to the front side of the heat source side heat exchanger 22 and is discharged from the upper grill (not shown) of the housing 1.

This discharged air is cold or warm air, and as shown in FIG. 5, the perimeter P is air-conditioned.

〔Effect of the invention〕

As is clear from the above description, according to the present invention, one and the other heat source side heat exchangers are integrally stored in the central storage chamber, so the configuration is compact, and the heat source side heat exchanger There are no obstructions near the container, so
The efficiency of heat exchange is improved, and since the outside air does not hit any obstructive shields, noise sources can be cut off. Also, the heat exchanger and fan on one user side can be combined in the storage room on one side. Since the storage chamber on the other side stores all the other equipment, various effects can be obtained, such as easier piping between the various equipment.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing the internal structure of the air conditioner according to the present invention, Fig. 2 is a sectional view showing the bottom of the housing, Fig. 3 is a refrigerant circuit diagram, and Fig. 4 is a refrigerant of the heat source side heat exchanger. The passage diagram and FIG. 5 are layout diagrams of the casing and the user-side casing. l... Housing, 2... Back plate, 3, 5... Partition plate,
7...Introduction hole, 9...Discharge hole, 11.13...Compressor, 12.14...Accumulator, 15
．． 25... Fan, 19... First (one) user-side heat exchanger, 22... Second (other) user-side heat exchanger,
27゜28...insulation material, 35.37...refrigerant passage,
39...Using side casing, 50...Intersection part.

Claims (1)

[Claims] Equipment such as one user side heat exchanger, one compressor, one fan, one heat source side heat exchanger, etc. that regulate the temperature of indoor air, and the other user side heat exchanger located separately in this room. the other compressor, the other fan,
In an air conditioner in which equipment such as a heat exchanger on the other heat source side is housed in a single housing, three storage chambers are formed within the single housing, and a central storage chamber is provided with three storage chambers. , the one heat exchanger and the other heat source side heat exchanger are stored together, the one user side heat exchanger and one fan are stored in the storage chamber on one side, and the storage chamber on the other side is stored. , an air conditioner characterized in that the remaining equipment is stored together.