KR20050112237A - Outdoor unit of air conditioner - Google Patents

Abstract

An outdoor unit of an air conditioner installed in the housing to improve the arrangement of the blower fan, the heat exchanger, and the compressor and the service valve to facilitate the piping arrangement of the refrigerant pipes is disclosed. The outdoor unit of the present invention comprises a partition plate partitioning the interior of the housing into the upper space and the lower space, a compressor disposed in the lower space, a pair of blowing fans disposed perpendicular to the upper space, a heat exchanger disposed in front of the blowing fan, A plurality of service valves for opening and closing the refrigerant pipes connecting the compressor and the heat exchanger in the housing. The service valve may be installed on the inclined surface inclined downward in the rear of the upper plate of the housing, or may be installed on the upper part of the partition plate at an approximately intermediate height of the housing.

Description

Outdoor Unit of Air Conditioner

The present invention relates to an outdoor unit of an air conditioner, and more particularly, to an outdoor unit of an air conditioner having an improved arrangement of a blower fan, a heat exchanger, and a compressor and a service valve.

In general, an air conditioner is an integrated type consisting of an evaporator, a condenser, and a compressor installed in one housing, and an indoor unit installed in an indoor unit consisting of an indoor unit and an outdoor unit installed with an evaporator, and an outdoor unit installed outdoors with a condenser and a compressor. It is divided into detachable type to be installed.

The outdoor unit of the separate air conditioner is installed outside the building and connected to the indoor unit installed in the indoor space by the refrigerant pipes. Recently, a multi-air conditioning system in which one outdoor unit is connected to a plurality of indoor units to cool several indoor spaces The system is adopted and used.

One outdoor unit connected to a plurality of indoor units is required to have a relatively larger compression capacity and condensation capacity than an outdoor unit connected to only one indoor unit, thus occupying a lot of installation space as the size of the compressor and condenser increases. do.

In particular, in the outdoor unit for a multi-air conditioning system in which a plurality of indoor units are connected to one outdoor unit, a pair of blowing fans is installed to effectively condense the condenser having a large condensation capacity, and thus the operation of the blowing fans and the compressor is performed. The noise is greatly generated.

However, since the outdoor unit of the conventional air conditioner does not efficiently arrange the blower fans, the condenser, and the compressor inside the outdoor unit, it occupies a lot of installation area, making it very difficult to secure the installation space, and of course, the compressor and the blower. The operation noise generated by the fans is not effectively reduced, so that a large noise is emitted to the outside to offend people.

In addition, since the outdoor unit of the conventional air conditioner does not have a blower fan, a compressor, and a service valve for opening and closing the refrigerant pipes connecting the indoor unit to the outdoor unit without the condenser being efficiently disposed, the outdoor unit is not disposed at an appropriate position of the outdoor unit. The arrangement of the refrigerant pipes connected to the outdoor unit is very complicated, which increases the cost and time of pipe arrangement, and also makes it difficult to repair and inspect the outdoor unit.

The present invention is to solve the above-mentioned problems of the prior art, an object of the present invention is to improve the arrangement of the blower fan and heat exchanger, and the compressor and the service valve installed inside the housing to reduce the installation area of the housing The present invention provides an outdoor unit of an air conditioner that can reduce the operation noise and facilitate the pipe arrangement of the refrigerant pipes.

The outdoor unit of the air conditioner according to the present invention for achieving this object,

A housing, a partition plate for partitioning the interior of the housing into an upper space and a lower space, a compressor disposed in the lower space, a pair of blowing fans vertically disposed in the upper space, and a heat exchanger disposed in front of the blowing fan. And a plurality of service valves for opening and closing the refrigerant pipes connecting the compressor and the heat exchanger in the housing.

The service valve may be disposed above the housing to allow the refrigerant pipes to be connected to the compressor and the heat exchanger installed inside the housing.

Preferably, the inclined surface is inclined downward in the rear of the upper plate of the housing, the service valve is to be installed on the top of the inclined surface.

In addition, the service valve may be disposed at approximately a middle height of the housing to allow the refrigerant pipes to be connected to the compressor and the heat exchanger installed inside the housing.

Preferably, the service valve is to be installed on top of the partition plate.

The front plate of the housing is provided with a discharge port positioned to face the blower fan and a suction port spaced apart from the discharge port by a predetermined distance, and the discharge port and the suction port are disposed in the left and right directions from the front of the housing.

As another aspect of the present invention, the outdoor unit of the air conditioner according to the present invention,

A pair of blowing fans installed in a vertical direction in the housing, the compressor, the housing, a heat exchanger installed in front of the blowing fan, a discharge port provided at one side of the front surface of the housing to face the blowing fan, and facing the heat exchanger And a plurality of service valves configured to open and close a refrigerant pipe connecting the compressor and the heat exchanger to the suction port provided at a predetermined distance from the discharge port on the front surface of the housing.

Preferably, an inclined surface inclined downward is provided at the rear of the upper plate of the housing, and the service valve may be installed above the inclined surface.

In addition, the housing may further include a partition plate for partitioning the housing into an upper space and a lower space, and the service valve may be installed above the partition plate.

The heat exchanger and the pair of blowing fans are disposed in the upper space, and the suction port and the discharge port are disposed in a horizontal direction from the front of the housing at a height from the lower end to the upper end of the upper space.

Hereinafter, with reference to the accompanying drawings will be described in detail a preferred embodiment of the present invention.

1 is a front perspective view of an outdoor unit of an air conditioner according to the present invention, FIG. 2 is a rear perspective view showing a part of the outer surface of the outdoor unit of the present invention, and FIG. 3 is a cross-sectional view taken along line III-III of FIG. 1. 4 is a cross-sectional view taken along the line IV-IV of FIG. 1.

As shown in FIG. 1, the outdoor unit 1 (hereinafter referred to as 'outdoor unit') of the air conditioner according to the present invention includes a front plate 11, a rear plate 12, both side plates 13, and The outer plate 14 and the bottom plate 15 are provided to form an appearance by the housing 10 having a substantially box shape.

As illustrated in FIG. 2, a partition plate 16 is disposed in the housing 10 in the transverse direction so as to divide the internal space of the housing 10 into the upper space 17 and the lower space 18. The heat exchanger 20 and a pair of blowing fans 30 are disposed in the upper space 17, and the compressor 40 is disposed in the lower space 18.

Further, an inclined surface 14a inclined downward is formed at the rear end portion of the upper plate 14 of the housing 10, and the inclined surface 14a is provided with a plurality of indoor units arranged indoors to harmonize the air in the indoor space. (Not shown) and a plurality of refrigerant pipes 51 connecting the outdoor unit 1 according to the present invention, and a plurality of refrigerants disposed inside the housing 10 to connect the heat exchanger 20 and the compressor 40. A plurality of service valves 50 are provided for connecting or disconnecting the pipes 52 to each other.

The refrigerant pipes 51 connecting the indoor units and the outdoor unit 1 are connected to the compressor 40 and the heat exchanger 20 installed in the housing 10 through the service valves 50. 52) to form a closed circuit in which the refrigerant circulates.

Therefore, when the service valves 50 are opened, the refrigerant can circulate through the refrigerant pipes 51 connecting the indoor units and the outdoor unit 1 and the refrigerant pipes 52 disposed inside the housing 10. On the other hand, when the service valves 50 are closed, the circulation of the refrigerant is blocked, so that the outdoor unit 1 can be checked or repaired.

As described above, the outdoor unit 1 according to the present invention has the service valve 50 installed on the top plate 14 of the housing 10 so that the refrigerant pipes 51 connected to the indoor unit are connected to the outdoor unit 1 from the top of the outdoor unit 1. 1) by having a structure that extends into the interior of the refrigerant pipes 51 can be connected to the refrigerant pipes 52 arranged in the housing 10 in a short length, as well as piping arrangements can be made very easily. Will be.

Here, although the service valves 50 are shown to be installed outside the upper plate 14 of the housing 10 in FIG. 2, the service valves 50 are adjacent to the upper plate 14 in the housing 10. It may be arranged to be arranged.

As shown in FIG. 3, the heat exchanger 20 has a first portion 21 disposed adjacent to the front plate 11 of the housing 10, and bent from the first portion 21 so as to be provided with the housing 10. It consists of a second portion 22 disposed to be adjacent to one side plate (13) of.

As shown in FIG. 4, a pair of blowing fans 30 is disposed inside each casing 32 in which the discharge portion 33 is formed at the tip, and is disposed between the blowing fans 30. It is connected to both ends of one drive motor 31 can be rotated.

That is, in the upper space 17 of the housing 10, a pair of blowing fans 30 are connected to both ends of the drive motor 31 disposed therebetween in the casing 32 so as to be vertically disposed. The discharge part 33 of the casing 32 is disposed adjacent to the discharge port 3 provided in the upper front plate 11a of the housing 10.

The compressor 40 is installed in the lower space 18 enclosed by the lower front plate 11b and the partition plate 16 and the bottom plate 15 and both side plates 13, thereby operating noise of the compressor 40. It is possible to reduce the divergence of the housing 10 to the outside.

In addition, the plurality of refrigerant pipes 52 connected to the service valves 50 extend downward in the housing 10 to be connected to the compressor 40 and the heat exchanger 20. The refrigerant pipes 52 extend upward through the service valves 50 to be connected to the refrigerant pipes 51 extending to the plurality of indoor units.

As described above, the refrigerant pipes 51 connected to the indoor units are arranged inside the housing 10 through the upper portion of the housing 10 by the service valves 50 disposed on the housing 10. Since the refrigerant pipes 51 do not need to be extended to the lower part of the housing 10 because they are connected to the 52, the length of the refrigerant pipes 51 may be shortened, and piping arrangement work may be performed. You can do it easily.

The front plate 11 is divided into an upper front plate 11a corresponding to the upper space 17 and a lower front plate 11b corresponding to the lower space 18 so that the upper front plate 11a and the lower front plate are separated. Detaching 11b allows access to the upper space 17 and the lower space 18, respectively.

In the upper front plate 11a, the outside air is introduced into the housing 10 by the blowing fans 30 disposed perpendicularly to the upper space 17 to exchange heat with the heat exchanger 20, and then the housing 10 again. Inlet (2) and outlet (3) is provided to be discharged to the outside of the).

The inlet port 2 is disposed in front of the heat exchanger 20 to allow the sucked air to pass through the heat exchanger 20, and the discharge port 3 guides the air passing through the heat exchanger 20 to be discharged to the outside. In order to do so, it is arranged in front of the discharge part 33 of each casing 32 surrounding each blowing fan 30.

As the blowing fans 30 vertically disposed as described above are disposed at one side of the upper space 17, the discharge ports 3 provided in front of the blowing fans 30 are vertically disposed at one side of the upper front plate 11a. It will be arranged long. In addition, except for the portion occupied by the discharge portion 33 of the casing 32, the intake port 2 is disposed at a predetermined distance from the discharge port 3 as the heat exchanger 20 is disposed along the front surface and one side surface of the housing 10. In the spaced apart state is arranged long in the vertical direction from the upper front plate (11a).

Therefore, the air introduced through the inlet port 2 flows in a horizontal layer in a horizontal direction to pass through the entire surface of the heat exchanger 20, and then continues through the outlets 33 of the casing 32. By being discharged to have a uniform flow rate distribution over the entire area of the heat exchanger 20, the heat exchange efficiency is increased and the air noise is reduced.

On the other hand, the upper space 17 and the lower space 18 is provided with a suction port (2) and the discharge port (3) except the upper front plate (11a) disposed on the front of the upper space 17, the lower front plate (11b) ) And back plate 12 and both side plates 13 and top plate 14 and bottom plate 15 are completely sealed. In addition, the housing 10 is installed in a built-in manner on the outer wall of the building so that only the front plate 11 provided with the suction port 2 and the discharge port 3 is exposed forward.

Therefore, the noise generated from the compressor 40 fixed to the bottom plate 15 in the enclosed lower space 18 to the outside is suppressed to the maximum, and the noise emitted to the outside of the housing 10 is greatly reduced. do.

In addition, a pair of blowing fans 30 are connected to both ends of one driving motor 31 disposed therebetween and are disposed at one side of the upper space 17, and the heat exchanger 20 is a blowing fan 30. Along the front and sides of the upper space 17 in front of the field so that the length of both side plates 13 of the housing 10, that is, the width or depth of the housing 10 can be made of a very small size.

By the arrangement structure as described above, the outdoor unit 1 of the present invention has a very small area of the bottom plate 15, so that the installation area of the housing 10 is greatly reduced, and thus the outdoor unit 1 of the present invention is It is very easy to install on the outer wall of the building, as well as separating the front plate 11 exposed in the front can easily access the inside of the housing 10, the heat exchanger 20 and the blowing fan 30 And, it is possible to simplify the inspection and repair work of the compressor (40).

As described above, the first portion 21 of the heat exchanger 20 is disposed along the intake port 2 in the upper space 17, and the discharge portions 33 of the casing 32 are located at the discharge port 3 at the rear thereof. ) Is placed adjacent to.

The second part 22 of the heat exchanger 20 is located closer to the side plate 13 of the housing 10 as it moves away from the first part 21 of the heat exchanger 20 on the opposite side of the blower fan 30. It is arranged as inclined as possible. That is, the second portion 22 of the heat exchanger 20 has the side plate 13 of the housing 10 such that the distance from the side plate 13 of the housing 10 decreases from the front end of the housing 10 toward the rear end. Disposed at an inclined angle with respect to the airflow, the air flowing into the suction port 2 provided in the upper front plate 11a of the housing 10 passes evenly through the entire surface of the second part 22 of the heat exchanger 20. To allow heat exchange.

When the outdoor unit 1 according to the present invention configured as described above operates the driving motor 31 disposed in the upper space 17 together with the compressor 40 disposed in the lower space 18, a pair of blowing fans ( As the 30 is rotated, outdoor air flows in through the suction port 2 provided on one side of the upper front plate 11a to exchange heat through the first part 21 and the second part 22 of the heat exchanger 20. The entire heat exchange surface of the group 20 passes uniformly.

The air heat-exchanged through the heat exchanger 20 continues to be sucked into the casing 32 through the space between the drive motor 31 and each blowing fan 30 to discharge the discharge portion 33 of the casing 32. After being guided to the exit side of the housing 10 through the discharge port 3 provided in the upper front plate (11a) on the opposite side of the inlet (2).

When the service valve 50 is closed to check or repair the outdoor unit 1, the connection between the refrigerant pipes 51 connected to the indoor units and the refrigerant pipes 52 disposed inside the housing 10 may be blocked. Will be.

FIG. 5 shows another embodiment of the present invention in which the service valves 50a are positioned approximately in the interior of the housing 10 instead of the structure in which the service valves 50 are disposed on the upper portion of the housing 10 as shown in FIG. 2. It is arranged.

That is, as shown in Figure 5, the service valve (50a) according to another embodiment of the present invention of the partition plate 16 partitioning the interior of the housing 10 into the upper space 17 and the lower space 18 It is installed at the top. Therefore, the refrigerant pipes 51 connected to the indoor units and the refrigerant pipes 52 connected to the heat exchanger 20 and the compressor 40 are disposed at approximately a midpoint inside the housing 10. 50a) are connected to each other.

In this way, the service valve 50a is disposed at the intermediate point of the housing 10 so that the operator can easily access the service valve 50a, thereby simplifying the inspection and repair of the outdoor unit 1, It is possible to facilitate the connection of the refrigerant pipes (51, 52).

As described in detail above, the outdoor unit of the air conditioner according to the present invention has a structure in which the housing is partitioned into an upper space and a lower space by a partition plate, and a pair of blower fans are vertically arranged so that the housing has a small width. Since it is possible to greatly reduce the installation area of the housing, there is an effect that it is easy to install the outdoor unit on the outer wall of the building in a built-in manner.

In addition, since the inlet port and the outlet port are arranged on the left and right sides of the front plate of the housing, the heat exchanger and the blower fan are arranged behind the inlet port and the discharge port, respectively, so that the air introduced into the housing flows in a horizontal direction so that the entire heat exchanger By passing through the heat exchange surface, the flow noise is greatly reduced, and at the same time, the heat exchange efficiency is increased.

In addition, the outdoor unit of the air conditioner according to the present invention has a structure in which the lower space in which the compressor is installed is sealed to the outside to reduce the operating noise generated from the compressor to the outside of the housing to the maximum. There is an effect that can minimize the occurrence of discomfort caused by the operation.

In addition, since the outdoor unit of the air conditioner according to the present invention has a structure in which a service valve for connecting or blocking the refrigerant pipes connected to the indoor units and the refrigerant pipes disposed inside the housing is installed at an upper or middle point of the housing. In addition, the repair and inspection of the outdoor unit can be simplified, and at the same time, the arrangement of the refrigerant pipes can be simplified and the cost of the deployment can be reduced.

1 is a front perspective view of an outdoor unit of an air conditioner according to the present invention.

2 is a rear perspective view showing a part of the outer surface of the outdoor unit of the air conditioner according to the present invention.

3 is a cross-sectional view taken along line III-III of FIG. 1.

4 is a cross-sectional view taken along the line IV-IV of FIG. 1.

FIG. 5 is a view corresponding to FIG. 2 and illustrates an outdoor unit of an air conditioner according to another embodiment of the present invention.

* Description of symbols on the main parts of the drawings *

2: inlet port 3: outlet port

10: housing 11a: upper front plate

11b: Lower faceplate 17: Upper space

18: subspace 20: heat exchanger

30: blower fan 31: drive motor

32: casing 40: compressor

50,50a: service valve 51,52: refrigerant pipe

Claims (13)

A housing, a partition plate for partitioning the interior of the housing into an upper space and a lower space, a compressor disposed in the lower space, a pair of blowing fans vertically disposed in the upper space, and a heat exchanger disposed in front of the blowing fan. And a plurality of service valves for opening and closing the refrigerant pipes connecting the compressor and the heat exchanger in the housing. The outdoor unit of claim 1, wherein the service valve is disposed at an upper portion of the housing to connect the refrigerant pipes to the compressor and the heat exchanger installed inside the housing. The outdoor unit of an air conditioner according to claim 2, wherein an inclined surface which is inclined downward is provided at the rear of the upper plate of the housing, and the service valve is installed on an upper portion of the inclined surface. The outdoor unit of claim 1, wherein the service valve is disposed at an approximately middle height of the housing to connect the refrigerant pipes to the compressor and the heat exchanger installed in the housing. The outdoor unit of an air conditioner according to claim 4, wherein the service valve is installed above the partition plate. According to claim 1, wherein the front plate of the housing is provided with a discharge port positioned to face the blowing fan, and the discharge port is spaced apart from the discharge port a predetermined distance is provided that the discharge port and the suction port is disposed in the left and right directions from each other in the front of the housing The outdoor unit of the air conditioner characterized by the above-mentioned. A pair of blowing fans installed in a vertical direction in the housing, the compressor, the housing, a heat exchanger installed in front of the blowing fan, a discharge port provided at one side of the front surface of the housing to face the blowing fan, and facing the heat exchanger And a plurality of service valves configured to open and close a refrigerant pipe connecting the compressor and the heat exchanger to the suction port provided at a predetermined distance from the discharge port on the front surface of the housing. 8. The outdoor unit of claim 7, wherein the service valve is disposed above the housing to connect the refrigerant pipes to the compressor and the heat exchanger installed in the housing. The outdoor unit of an air conditioner according to claim 8, wherein an inclined surface inclined downward is provided at the rear of the upper plate of the housing, and the service valve is installed on the inclined surface. 8. The outdoor unit of claim 7, wherein the service valve is disposed at approximately a middle height of the housing to connect the refrigerant pipes to the compressor and the heat exchanger installed inside the housing. The outdoor unit of claim 10, wherein the housing further comprises a partition plate partitioning the housing into an upper space and a lower space. The outdoor unit of an air conditioner according to claim 11, wherein the service valve is installed above the partition plate. 12. The method of claim 11, wherein the heat exchanger and the pair of blowing fans are disposed in the upper space, the inlet and outlet are arranged in the left and right directions from the front of the housing to a height from the lower end to the upper end of the upper space. The outdoor unit of the air conditioner characterized by the above-mentioned.