KR20050000366A - Built-in type outdoor unit for airconditioner - Google Patents

Abstract

PURPOSE: A built-in type outdoor unit for an air conditioner is provided to minimize interference between outdoor units installed at individual households in an apartment house or high-rise building. CONSTITUTION: A louver frame(4,6) is fixedly installed at an inner wall of an open space of an outer wall(2), including a plurality of louver blades(8). An outdoor unit case has one open surface contacting with the louver frame, and rest of the surfaces are closed. A compressor is installed in the outdoor unit case, and compresses refrigerant gas supplied from an indoor unit. An air-cooling type condenser(30) is installed in the outdoor unit case, and condenses the refrigerant gas supplied from the compressor. A cooling fan unit is formed of a fan housing installed in the outdoor unit case, and a cooling fan(40) installed in the fan housing for sucking the outside air through gaps between the louver blades and the open surface, and discharging the heat-exchange air out of a building.

Description

Wall-mounted outdoor unit for air conditioner {BUILT-IN TYPE OUTDOOR UNIT FOR AIRCONDITIONER}

Air conditioners including both air conditioners or heaters can be divided into one-piece and separate types. In the case of describing the air conditioner as an example, the separate type air conditioner, which is the object of the present invention, is installed indoors, and the indoor air conditioner is connected by an indoor unit, which is connected to the indoor unit and a refrigerant pipe, and is installed in the outdoor contact with the atmosphere to cool external air. It consists of an outdoor unit that supplies the condensed refrigerant after condensation heat exchange with the refrigerant gas in the furnace condenser through the refrigerant pipe to the evaporator of the indoor unit. The indoor unit includes an evaporator for cooling heat exchange to absorb evaporative heat from the indoor air by evaporating the refrigerant, and a ventilation fan for circulating the indoor air. The outdoor unit includes a compressor for compressing the refrigerant gas and supplying it to the condenser, and the refrigerant gas supplied from the compressor. An air-cooled condenser for condensing, and a cooling fan for cooling and condensing the refrigerant gas by forced air flow to the air-cooled condenser. The compressor, air-cooled condenser and cooling fan of the outdoor unit are housed inside the outdoor unit case forming the exterior. The conventional hexahedral outdoor unit case has an air inlet for sucking air into an air-cooled condenser on three sides, and an air for discharging the air absorbed from the refrigerant gas to the outside through heat exchange in an air-cooled condenser on its upper surface. The discharge part is provided.

However, such a conventional outdoor unit for an air conditioner has been restricted in the installation place due to the high density of the city and the strengthening of environmental management, and has been subjected to complaints of the surroundings due to noise and heat emission. In particular, common residential facilities, such as large apartment complexes, require outdoor units to be installed inside the veranda due to aesthetics and noise problems.

In order to solve this problem, Japanese Patent Laid-Open Publication No. Hei 6-101873 is installed indoors of an air conditioner or adjacent to an indoor unit, and an outdoor unit of an air conditioner is installed outdoors. In the installed air conditioner-mounted building, an opening is installed in the outer wall or roof, a louver is installed in the opening, an outdoor unit of the air conditioner is installed inside the louver, and the intake or exhaust of the outdoor unit is a wing plate of the louver. Disclosed is a building equipped with an air conditioner, which is to be carried out through a gap.

In addition, Japanese Patent Laid-Open No. 3-213928 discloses an outdoor unit main body for an air conditioner having an outline having a thickness substantially the same as the wall embedded in the wall, and air for heat exchange disposed on the same side of the main unit main body. An outdoor unit for a wall-mounted air conditioner having a suction port and a blowout port of air after heat exchange is disclosed.

However, all of the above-mentioned prior arts only disclose a technique of inserting and installing the outdoor unit itself into a space formed on the outer wall of a building, and effectively apply to a common house where the outdoor unit of the wall embedded type or the front suction type can be used in large numbers. There is no disclosure of any applicable structure.

The present invention relates to an outdoor unit for an air conditioner, and more particularly, to a wall-mounted outdoor unit for an air conditioner.

1 is a partial cross-sectional perspective view showing a structure of one embodiment of a wall-mounted outdoor unit for an air conditioner according to the present invention.

FIG. 2 is an exploded perspective view of the outdoor unit shown in FIG. 1.

3 is a perspective view of a multi-family building showing an example in which the outdoor unit shown in FIG. 1 is installed in a multi-family building.

4 is a plan sectional view of a multi-family building for showing the discharge direction of the waste air from the discharge unit of the outdoor unit in the multi-family building shown in FIG.

5 is a diagram illustrating an example in which the outdoor unit shown in FIG. 1 is installed adjacent to a multi-family building.

6 is a perspective view of a multi-family building showing an example in which the wall-mounted outdoor unit for an air conditioner according to another embodiment of the present invention is installed in a multi-family building.

Description of the Preferred Embodiments

First, one of the preferred embodiments of the present invention in Figures 1 and 2, the wall-mounted outdoor unit for an air conditioner with the suction part formed below and the discharge part is described.

The outer frame 4 is fixedly installed on the rectangular inner wall of the space formed in the outer wall 2 of the residential and / or commercial building, the inner frame 6 inside the outer frame 4, the outer frame 4 It is fixed to the installation. In some cases, the inner and outer frames 4 and 6 may be integrally formed. The inner region of the inner frame 6 is divided into a suction region 7a and a discharge region 7b, and a plurality of louver blades 8 are provided in each region to fill the gap between these louver blades 8. As shown by the downward arrow of FIG. 1, external fresh air is sucked into the outdoor unit 10, and the waste air heat-exchanged in the outdoor unit 10 is again drawn through the gap between the louver blades 8. It is discharged to the outside as indicated by the up arrow of 1.

The louver blade 8 may be manually or electrically controlled by using an unillustrated driving device, and in some cases, the louver blade 8 is opened at a predetermined angle by determining the air intake and discharge directions in advance. It is also possible to drive the outdoor unit with it.

On the other hand, the outdoor unit 10 fixedly installed inside the building exterior wall 2 to contact the outer frame 4 and / or the inner frame 6 has an outdoor unit case, which is the component shown in FIG. In addition, the outdoor unit components shown in FIG. 2 are also installed inside the outdoor unit case.

First, the outdoor unit case is open so that the front part facing the suction area 7a and the discharge area 7b of the inner frame 6 communicates with the outside of the building. The open front part is the suction part 11a and the discharge part ( It is divided into 11b) and corresponds to the suction area 7a and the discharge area 7b of the inner frame. Then, both side portions 12a and 12b formed at both side ends of the front portion, a rear portion 12c formed to face the front portion, and the front portion, both side portions 12a and 12b and the rear portion 12c, respectively. And a bottom portion 14 formed at a lower end, and an upper portion 16 formed at an upper end of the front portion, both side portions 12a and 12b and the rear portion 12c. Both side portions 12a and 12b, rear portion 12c, bottom portion 14 and top portion 16 are closed to form an overall rectangular parallelepiped casing. In the front part of the outdoor unit 10, a mesh-shaped front grill 60 is additionally installed to prevent invasion of animals (eg, rats) from the outside, which is opened for convenience in the following description. Reference numerals for the parts are indicated together with reference numeral 60 for the front grille.

In addition, the outdoor unit case may be configured to be easily transported and installed by being separated into a suction case corresponding to the suction part 11a and a discharge case corresponding to the discharge part 11b in order to facilitate transportation and installation. .

The bottom portion 14 has a plurality of leg members 18a, 18b, 18c, and 18d protruding outwardly, which are the floor members of the building, e.g. apartment verandas. Is supported on the floor to support the heavy load of the outdoor unit (10). The number of leg members 18a, 18b, 18c, and 18d may be preferably about four when considering the shape of the bottom portion 14. In addition, a leg reinforcement 19 for connecting and reinforcing these leg members 18a, 18b, 18c, and 18d to each other is formed in the transverse direction below the bottom portion 14. In addition, the leg members 18a, 18b, 18c, and 18d further include a height-adjustable screw (not shown), so that when the flatness of the floor of the building, for example, the floor of the apartment veranda is not correct, the outdoor unit ( Can also be used to level 10). In addition, when the two of the leg members (18a, 18b, 18c, 18d), for example, the front (building outer wall side) two leg members (18a, 18b) further comprises a wheel for movement (not shown), It becomes quite convenient to carry the heavy load outdoor unit 10.

In addition, a compressor 20 for compressing the refrigerant gas supplied into the outdoor unit 10 from the indoor unit not shown in the outdoor unit suction unit 11a is installed on the compressor fastening unit 22, and is supplied from the compressor 20. An air-cooled condenser 30 for condensing refrigerant gas through heat exchange with external air is provided on both side portions 12a, 12b and / or bottom portion using the top covers 32a, 32b, 32c and side covers 34a, 34b. 14) is fixedly installed.

As shown in FIG. 2, the air-cooled condenser 30 has a configuration in which a plurality of rows of condenser pipes are arranged in a zigzag shape between a plurality of condenser fins. The structure of the air-cooled condenser is not shown in detail because it is already known. The compressed refrigerant gas compressed from the compressor 20 flows through the pipe of the condenser 30 and is condensed by taking heat of condensation into air supplied from the outside. In this case, an air path is formed so that the air flowing from the outside of the upper covers 32a, 32b, 32c and the side covers 34a, 34b is not supplied to the discharge part 11b without passing through the air-cooled condenser 30. . As a result, all of the outside air sucked through the gap between the louver blades 8 of the suction area 7a is guided along the air path formed by the upper covers 32a, 32b, 32c and the side covers 34a, 34b. Heat exchange with the refrigerant gas flowing through the condenser pipe while passing through the air-cooled condenser (30).

As shown in Fig. 2, a preferred embodiment of the present invention is a case in which the cross-sectional shape of the air-cooled condenser is “U” -shaped in order to perform heat exchange in as much area as possible with the outside air sucked through the open front part. Shows. However, the cross-sectional shape of the air-cooled condenser can of course be changed by the designer to an optimal shape for the device, depending on the consideration. In this case, the shape and structure of the top cover and the side cover should also be changed to an appropriate shape in order to prevent the air sucked through the open front part from being sucked into the discharge part without being heat exchanged.

In particular, unlike the outdoor unit of the type in which the outside air is sucked through the open three sides and the open air heat exchanged upward is discharged, the suction area is limited in the present invention employing the front suction discharge method. This is big. Therefore, in the preferred embodiment of the present invention, a centrifugal cooling fan is provided in the discharge portion 11b which enables a relatively large amount of airflow even under such conditions. That is, a centrifugal which supplies external air to the air-cooled condenser 30 through the suction region 7a and discharges the heat-exchanged waste air through the discharge region 7b to the outdoor unit discharge portion 11b. The cooling fan 40 is provided. 2 shows a sirocco cooling fan as an example of such a centrifugal cooling fan. Such a sirocco fan may be installed such that the suction orifice 36 faces upward and downward, and the suction orifice 36 may face both side portions 12a and 12b.

In addition, as shown in Figure 2, in order to minimize the vibration caused by the operation of the fan to the system is required a fan support member for fixing the centrifugal cooling fan 40 to the outdoor unit case, these support members are shown As described above, the fan frame 42 reinforces and supports the corners of the discharge portion, and a fan bracket 44 for connecting and fixing the side surface of the centrifugal cooling fan 40 to the fan frame 42. The shape of the fan bracket 44 may vary depending on the installation direction of the centrifugal cooling fan. In addition, when the outdoor unit case is divided into a suction case corresponding to the suction part 11a and a discharge case corresponding to the discharge part 11b as described above, the fan frame 42 reinforces and supports the discharge case. You may. Reference numeral 46 denotes a fan front installed in front of the centrifugal cooling fan 40.

In addition, a control box 50 for controlling the operation of the outdoor unit is provided in the rear part 12c, and preferably, the suction part 11a, and a refrigerant gas evaporated from the indoor unit flows under the control box 50. The valve assembly 52 which is a passage of the piping and the refrigerant pipe through which the condensed refrigerant condensed in the outdoor unit flows is provided.

Looking at the operation principle of the wall-mounted outdoor unit for an air conditioner having the above configuration, first, the refrigerant gas flowing from the indoor unit through the refrigerant pipe of the valve assembly 52 is compressed while passing through the compressor 20 and the condenser 30 Is supplied. At this time, since the centrifugal cooling fan 40 is operating, the air sucked in from the outside through the gap between the louver blades 8 of the suction area 7a and the front part 60 of the outdoor unit case is the upper cover 32a. Condenser pipes sandwiched between the fins while passing evenly between the fins formed on the three sides of the air-cooled condenser 30 through the air passages made by the 32b and 32c, both side portions 12a and 12b and the side covers 34a and 34b. The condensation heat is removed from the refrigerant gas flowing through the gas, and is passed through the centrifugal cooling fan 40 while the temperature is raised, and is discharged to the outside through the gap between the louver blades 8 of the discharge region 7b.

When the outdoor unit having the above structure is installed in the louver frame fixedly fixed to the inner wall of the open space of the building outer wall, as shown in FIG. 1, the outdoor unit 10 of the front suction method can be obtained. However, in the case of high-rise apartment houses or commercial high-rise buildings, which have recently been established as typical residential lifestyles with urban development, the arrangement of adjacent households is formed symmetrically. Therefore, in consideration of the fact that the outdoor unit causes noise during operation and the utilization of the space inside the building, when the outdoor unit is installed in one corner of the open space from the building, even in the adjacent generation due to the symmetrical arrangement of the building, The outdoor unit is bound to be installed adjacently.

For example, in the case of a multi-family house shown in Figure 3, in the A, C, E of each floor, the outdoor cabin 100 is installed on the right side, B, D adjacent to each other on each floor In HO and F, since the outdoor cabin 102 is installed to the left due to the symmetrical arrangement of the building, the outdoor cabins 100 and 102 are adjacent to each other. In this case, the greatest feature of the present invention is that the discharge direction of the heat-exchanged waste air discharged to the outside from the outdoor unit rooms 100 and 102 is a direction away from the nearest outdoor unit (arrow "X" direction in FIG. 3). have. As described above, the fresh air of the outside is sucked into the lower part of the outdoor air chambers 100 and 102 as in the present invention, and the exhaust air heat exchanged to the upper part of the outdoor air chambers 100 and 102 is discharged. In the outdoor unit, fresh air outside is sucked into the outdoor chambers 100 and 102 through the gap between the louver blades from the outside in the direction of arrow "Y", but the waste air heat exchanged inside the outdoor chamber is Discharged through the gap between the louver blades in the direction of "

Therefore, the possibility that the waste air discharged after heat exchange in the outdoor unit is re-suctioned into the suction unit of the outdoor unit, re-suctioned into the suction unit of the adjacent outdoor unit, or re-suctioned into the suction unit of the outdoor unit immediately above is significantly reduced. That is, when the fresh air of the outside is not sucked through the suction unit, and the high temperature waste air discharged from the outdoor unit or another outdoor unit is re-sucked through the suction unit, the heat exchange efficiency inevitably decreases in the air-cooled condenser. The probability of this problem is significantly reduced.

4 shows a preferred example of the specific means for enabling this. That is, the rotational direction of the centrifugal cooling fan 40a provided in the outdoor unit chamber 100 of No. A and the rotational direction of the centrifugal cooling fan 40b provided in the outdoor unit chamber 102 of the adjacent unit B are opposite to each other. . Therefore, the discharge direction of the heat-exchanged waste air discharged from each of the centrifugal cooling fans 40a and 40b is a direction away from the nearest outdoor unit, so that the waste air discharged from each outdoor unit can be sucked back into the outdoor unit or the adjacent outdoor unit. The possibility is greatly reduced. In addition, in the present invention, the waste heat exchanged in the direction away from the nearest outdoor unit while using a centrifugal cooling fan (more preferably, a sirocco cooling fan) having a relatively large discharge air volume of preferably 6 m / s or more, as described above. Since the air is discharged, even if the high-rise building wind or the reverse wind blows in the direction of the arrow "Z", the possibility that the waste air discharged from the outdoor unit is sucked back into the outdoor unit or the adjacent outdoor unit is significantly reduced.

An example of the installation configuration of the outdoor unit according to the present invention described above is again shown in Fig. 5. In Fig. 5, the outdoor unit 10a of A should be installed closer to the partition wall between A and B, but for convenience of illustration, It is shown farther. As can be seen from the partial cutaway perspective view shown in Fig. 5, the discharge direction of the sirocco cooling fan 40a of A is opposite to the discharge direction of the sirocco cooling fan 40b of B. To this end, as shown in Figure 4, the direction of rotation of the sirocco cooling fan motor and the rotational direction of the sirocco cooling fan motor B in the A should be the opposite direction.

However, this assumes the case of using a sirocco cooling fan with an orifice facing up and down as a centrifugal cooling fan, and as described below, an air guide for guiding discharge air in a direction away from the nearest outdoor unit even if a different type of fan is used. If using the portion, it is possible to adjust the discharge direction of the heat exchanged waste air in the closest outdoor period only to adjust the direction of the air guide portion so as to be opposite to each other.

In this case, in order to reduce the discharge resistance of the waste air discharged from the discharge portion, the louver blade of the discharge portion may be formed in the vertical direction, as shown by the discharge portion louver blade 8 'of FIG. That is, it is also possible to induce the heat exchanged waste air in a direction away from the nearest outdoor unit by the louver blades. At this time, the opening direction of the louver blade of arc A and the opening direction of the louver blade of arc B will be opposite to each other.

When the discharge direction is controlled by the neighboring outdoor unit in this way, as shown in FIG. 3, the waste air discharged from one outdoor unit (for example, outdoor unit C) is adjacent to the outdoor unit (for example, outdoor unit D) or the upper floor thereof. However, the possibility of being sucked into the suction part of the neighboring outdoor unit (for example, outdoor units of E, F, A or B) downstairs is reduced, so that the heat exchange efficiency can be expected to be improved in the outdoor units installed in the whole apartment house.

In the above, the case where the suction area of the outdoor unit is formed below and the discharge area is formed above has been described as an example, but the above principle can be applied as it is when the suction area is formed above and the discharge area is formed below. Of course.

6 illustrates a case in which the suction area and the discharge area of the outdoor unit are formed left and right. In this case, as described above, the discharge direction of the discharged heat-exchanged waste air is directed toward the "X" direction, which is a direction away from the nearest outdoor unit, and the suction direction of fresh air sucked from the outside is directed to the "Y" direction. It is possible to minimize the possibility that the waste air discharged from each outdoor unit is re-sucked into the suction unit of the outdoor unit or re-sucked into the suction unit of the adjacent outdoor unit of the same floor or the adjacent outdoor unit of the other floor. Even in this case, a centrifugal cooling fan, preferably a sirocco cooling fan, may be used as the cooling fan, and share the effect that the outdoor unit having the above-described discharge area and the suction area can enjoy. At this time, as shown in Figure 6, when the suction unit of any one outdoor cabin is configured to be adjacent to the suction unit of the nearest outdoor cabin, the above-described effects can be maximized.

Even in this case, in order not to install a separate air guide part for adjusting the discharge direction, the orifice of the sirocco cooling fan should be installed so as to face the upper and lower parts of the outdoor unit case. In this case, however, the orifice will be perpendicular to the side facing the suction region rather than the suction region.

In the above, the case where a sirocco cooling fan is used as an example of a centrifugal cooling fan was demonstrated. However, of course, the same principle as described above can also be applied when a turbofan, which is another example of a centrifugal cooling fan, is used. That is, it is possible to discharge the waste air in a direction away from the nearest outdoor unit by installing a turbo fan having an orifice formed up and down in an adjacent outdoor unit and configuring the rotation directions of the turbo fan in opposite directions.

In the above, the present invention has been described by taking a centrifugal cooling fan having an orifice formed up and down as an example for convenience of description, but in order to implement the technical idea of the present invention within the scope described in the claims to be described later both sides It is also possible to discharge the waste air in a direction away from the nearest outdoor unit by installing an air guide part of an appropriate shape while using a centrifugal cooling fan configured to face.

In addition, it is also possible to dispose the waste air in a direction away from the closest outdoor unit by installing an air guide part of a suitable shape while using another type of fan such as an axial fan instead of a centrifugal cooling fan. In the above case, the air guide portion is installed between the cooling fan and the louver frame so that the air guide portion is configured to be invisible to the outside.

As described above, according to the present invention, in a common house where a large number of outdoor air conditioner air conditioner outdoor units can be installed, the reduction of heat exchange efficiency of the outdoor unit by the neighboring outdoor unit is minimized, and the neighboring outdoor unit by the outdoor unit It is possible to provide an outdoor unit structure that can minimize the reduction in heat exchange efficiency. Accordingly, it is possible to minimize the interference of the outdoor period of the front absorption method installed in individual households in a large high-rise apartment house or commercial high-rise building.

Accordingly, the present invention minimizes a decrease in heat exchange efficiency of the outdoor unit by a neighboring outdoor unit in a common house or a commercial building in which a plurality of front air suction / outtake air conditioner outdoor units may be installed, and minimizes the heat exchange efficiency of the neighboring outdoor unit by the outdoor unit. It is an object of the present invention to provide an outdoor unit structure that can minimize the decrease in efficiency.

In addition, an object of the present invention is to provide an outdoor unit installation system capable of minimizing the interference of the outdoor period of the front suction system is installed in individual households in a large multi-family house.

To this end, the present invention, the louver frame is fixed to the inner wall of the open space of the building outer wall and comprises a plurality of louver blades; An outdoor unit case in which one side of the louver frame is in contact with the outside and the other side is opened; A compressor installed in the outdoor unit case and compressing a refrigerant gas supplied from an indoor unit through a pipe; An air-cooled condenser installed in the outdoor unit case and condensing the refrigerant gas supplied from the compressor; A fan housing installed in the outdoor unit case and air installed in the fan housing through the gap between the louver blades and the open one surface to exchange the heat exchanged air in the air-cooled condenser. And a cooling fan unit comprising a cooling fan which is discharged to the outside of the building and in a direction away from the nearest outdoor unit through the gap between the louver blades.

Here, preferably, the louver frame is divided into a suction area and a discharge area, and a plurality of louver blades are installed in each area, and air outside the building fills the gap between the louver blades of the suction area and the open one surface. It is sucked into the outdoor unit case, and the heat-exchanged air may be discharged to the outside of the building through the gap between the open one surface and the louver blade of the discharge area. More preferably, the suction area and the discharge area may be partitioned above and below the louver frame, or the suction area and the discharge area may be partitioned to the left and right of the louver frame. In the latter case, the suction area is more preferably provided adjacent to the suction area of the nearest outdoor unit.

In any case, the cooling fan is a centrifugal cooling fan, and the suction orifice of the fan housing is preferably formed so as to face the upper and lower parts of the outdoor unit case. In addition, the centrifugal cooling fan may be a sirocco cooling fan or a turbo fan.

In addition, the rotational direction of the centrifugal cooling fan motor may be further opposite to the rotational direction of the cooling fan motor of the nearest outdoor unit. The fan housing may further include a diffusion part for discharging air by the cooling fan, and the direction of the diffusion part may be opposite to the direction of the diffusion part of the fan housing of the cooling fan of the nearest outdoor unit.

In addition, the cooling fan may further include an air guide unit for inducing discharged air in a direction away from the nearest outdoor unit. In this case, the air guide unit may be installed between the cooling fan and the louver frame.

In addition, when the air heat-exchanged in the air-cooled condenser is discharged by the louver blades may be induced away from the nearest outdoor unit, in this case, the opening direction of the louver blades is opposite to the opening direction of the louver blades of the nearest outdoor unit. Direction is good.

Claims (14)

A louver frame fixed to an inner wall of an open space of an outer wall of the building and including a plurality of louver blades; An outdoor unit case in which one surface facing outwardly in contact with the louver frame is open and the other surfaces are closed; A compressor installed in the outdoor unit case and compressing a refrigerant gas supplied from an indoor unit through a pipe; An air-cooled condenser installed in the outdoor unit case and condensing the refrigerant gas supplied from the compressor; A fan housing installed in the outdoor unit case and air installed in the fan housing through the gap between the louver blades and the open one surface to exchange the heat exchanged air in the air-cooled condenser. And a cooling fan unit comprising a cooling fan which is discharged to the outside of the building and in a direction away from the nearest outdoor unit through the gap between the louver blades. The method of claim 1, The louver frame is divided into a suction area and a discharge area, and a plurality of louver blades are installed in each area, and air outside the building is sucked into the outdoor unit case through the gap between the louver blades of the suction area and the open one surface. And the heat-exchanged air is discharged to the outside of the building through a gap between the open one surface and the louver blades of the discharge area. The method of claim 2, And the suction area and the discharge area are partitioned above and below the louver frame. The method of claim 2, And the suction area and the discharge area are partitioned to the left and right of the louver frame. The method of claim 4, wherein And the suction area is installed to be adjacent to the suction area of the nearest outdoor unit. The method according to any one of claims 1 to 5, And the cooling fan is a centrifugal cooling fan, and the suction orifice of the fan housing is formed so as to face the upper surface portion and the lower surface portion of the outdoor unit case. The method of claim 6, The centrifugal cooling fan is a wall mounted type outdoor unit for an air conditioner, characterized in that the sirocco cooling fan. The method of claim 6, The centrifugal cooling fan is a wall fan type outdoor unit for an air conditioner, characterized in that the turbo fan. The method according to any one of claims 6 to 8, And the rotational direction of the centrifugal cooling fan motor is a direction opposite to the rotational direction of the cooling fan motor of the nearest outdoor unit. The method of claim 8, The fan housing includes a diffuser for discharging air by the cooling fan, and the direction of the diffuser is opposite to the direction of the diffuser of the fan housing of the cooling fan of the nearest outdoor unit. Outdoor unit. The method according to any one of claims 1 to 5, The cooling fan further includes an air guide unit for guiding discharge air in a direction away from the nearest outdoor unit. The method of claim 11, The air guide unit is a wall mounted outdoor unit for an air conditioner, characterized in that installed between the cooling fan and the louver frame. The method according to any one of claims 1 to 5, And the air heat-exchanged in the air-cooled condenser is guided away from the nearest outdoor unit by the louver blade when discharged. The method of claim 13, And the opening direction of the louver blades is opposite to the opening direction of the louver blades of the nearest outdoor unit.