JP2010078214A - Outdoor unit for air conditioner - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an outdoor unit for an air conditioner having a simple configuration with high fire resistance against fire break-out from a resin control box side. <P>SOLUTION: The outdoor unit 1 for the air conditioner includes a casing 2, a partition plate 3 for partitioning inside of the casing 2 into a machine chamber 4 and a heat exchanger chamber 5, and the resin control box 6 to which an inverter is incorporated. The resin control box 6 is arranged at an upper edge of a notch 16 of the partition plate 3, and part of the resin control box 6 including heat release fins 17 is exposed from an opening 16B of the notch 16 to the heat exchanger chamber 5 side, and is installed within the machine chamber 4. A cover 18 made of sheet metal for covering an edge of the resin control box 6 exposed from the opening 16B of the notch 16 to close part of the opening 16B of the notch 16 is provided in the notch 16 of the partition plate 3. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to an outdoor unit of an air conditioner including a resin control box in which an inverter is incorporated.

  An outdoor unit of an air conditioner is generally composed of a machine room in which a compressor, a four-way valve, a control box and the like are disposed by a partition plate inside the housing, and a heat exchanger in which an outdoor heat exchanger and a fan are disposed. It is divided into rooms. Various electrical components such as a control board on which a power transistor of an inverter for driving a compressor is mounted are incorporated in a control box disposed in the machine room. The control box is arranged on the upper edge of the notch provided in the upper part of the partition plate, and a part of the control box including the radiation fin for the power transistor is exposed to the heat exchanger chamber side from the opening of the notch. It is installed in the machine room.

  As a control box installed in the outdoor unit, a resin control box and a sheet metal control box are used. The control box made of resin has the advantage that it can increase the degree of sealing as a box considering protection of electrical components from the surrounding environment, that is, waterproofing against intrusion of rainwater, dust, etc., dustproof protection and reduction of leakage current. is doing. However, in the unlikely event that a fire breaks out due to aging or secular change, the control box itself will burn out, and the flame will enter the heat exchanger room side from the notch in the partition plate. It is assumed that the flame is blown out from the outdoor unit after being blown out and spread to the resin fan or fan guard.

  On the other hand, since the sheet metal control box is made of metal, it has a feature of excellent fire resistance. However, considering waterproofing of electrical components, dustproof protection, leakage current reduction, etc., increasing the sealing degree as a box or installing a power transistor heat sink, the structure becomes complicated, High costs were inevitable. Therefore, when a fire occurs outside, at least the heat exchanger chamber of the resin control box prevents the flame from entering the outdoor unit and burning into the resin control box and spreading to the resin control box. There has been proposed a structure in which an outer surface of a portion protruding to the side is covered with a sheet metal box or a sheet metal cover (see, for example, Patent Documents 1 and 2).

JP-A-11-287482 Japanese Patent No. 3576512

  In recent years, fire accidents with aging household appliances have been seen frequently, and it is regarded as a problem socially. Under these circumstances, efforts are being made to reduce the risk of fire in the field of air conditioners. However, due to various restrictions in the use of electrical components that generate heat and the structural design, it is difficult to reduce the risk of fire occurrence to zero. For this reason, when using a plastic control box, if a fire breaks out from an electrical component due to aging or secular change, the heat exchanger room side fan, fan guard, etc. It is important to increase the fire resistance so that it does not spread.

  When the outer surface of the resin control box is covered with a sheet metal box or a sheet metal cover as in Patent Documents 1 and 2, it is possible to shield the flame that enters the resin control box from the outside. is there. However, if a fire breaks out from the electrical components in the resin control box, the resin control box itself will burn out, and the sheet metal box or sheet metal cover that covers the outer surface will also fall at the same time. There was a problem that fires from the inside of the control box were not necessarily effective fire prevention measures. Moreover, in order to cover the outer surface along the portion of the resin control box that protrudes toward the heat exchanger chamber, not only is it troublesome to process the sheet metal box or the sheet metal cover, but an extra sheet metal is also required. There were also problems such as.

  The present invention has been made in view of such circumstances, and is an air conditioner that has a simple structure and can be configured to have a high fire resistance against fire from the resin control box side. The purpose is to provide an outdoor unit.

In order to solve the above problems, the outdoor unit of the air conditioner of the present invention employs the following means.
That is, the outdoor unit of the air conditioner according to the present invention includes a housing in which outdoor unit components are housed, a partition plate that partitions the inside of the housing into a machine room and a heat exchanger room, and a resin in which an inverter is incorporated. A part of the resin control box including at least the radiating fins of the inverter, the resin control box being disposed on an upper edge of the notch provided in the upper part of the partition plate. In the outdoor unit of the air conditioner that is exposed to the heat exchanger chamber side from the opening of the notch and is installed in the machine room, the notch of the partition plate has the notch A sheet metal cover is provided that covers an end portion of the resin control box exposed from the opening and closes a part of the opening of the notch.

  According to the present invention, the notch portion of the partition plate in which the resin control box is disposed on the upper edge covers the end portion of the resin control box exposed from the opening of the notch portion. Since a sheet metal cover that closes a part of the opening is provided, the resin control box is notched even if the resin control box burns out due to a fire from an electrical component incorporated in the resin control box. The flame is shielded by a sheet metal cover that closes the opening of the part, preventing the flame from blowing out to the heat exchanger chamber side and spreading to the resin fan, fan guard, etc. located in the heat exchanger chamber can do. Therefore, even if a fire breaks out from the resin control box side, it is possible to avoid a situation where flames are ejected from the outdoor unit to the outside, and the outdoor unit can be configured to have a high fire resistance. In addition, the control box in which the inverter is built should have a higher degree of sealing than the sheet metal control box, which is excellent in fire resistance, considering waterproofing of electrical components from the surrounding environment, protection against dust, and reduction of leakage current. Therefore, it is advantageous to be able to improve the fire prevention performance of the outdoor unit using the resin control box. The sheet metal cover is desirably large enough to close at least 50%, preferably 70% or more of the opening of the notch.

  Furthermore, the outdoor unit of the air conditioner of the present invention is the outdoor unit of the air conditioner described above, wherein the sheet metal cover is configured as a separate part and is fixedly installed in the notch portion of the partition plate. Features.

  According to the present invention, since the sheet metal cover is configured as a separate part and is fixedly installed in the notch portion of the partition plate, only the sheet metal cover can be additionally installed without changing the conventional design structure. Thus, the fire performance of the outdoor unit can be improved. Therefore, it is possible to easily take a fire prevention measure with minimal modification to the current outdoor unit.

  Furthermore, the outdoor unit of the air conditioner of the present invention is characterized in that in the outdoor unit of the air conditioner, the sheet metal cover is formed integrally with the partition plate.

  According to the present invention, since the sheet metal cover is integrally formed with the partition plate, it is possible to reduce the man-hours and labor required for separately producing the sheet metal cover and fixing and installing the cover on the partition plate, and the cost required for it. Therefore, the increase in the number of parts can be suppressed, the assembling property and productivity of the outdoor unit can be improved, and the cost can be reduced.

  Furthermore, the outdoor unit of the air conditioner of the present invention is the outdoor unit of any of the above-described air conditioners, wherein the sheet metal cover is integrally provided with a locking portion that is locked to the radiation fin. It is characterized by being.

  According to the present invention, since the locking portion for locking with the heat radiation fin is integrally provided on the sheet metal cover, even if the portion supporting the heat radiation fin of the resin control box is burned out and dropped, the heat radiation fin Is latched and supported by the latching portion of the sheet metal cover. Therefore, the radiating fins do not fall off, and the opening generated in the notch is made as small as possible to minimize the flame that blows out to the heat exchanger chamber side, to the resin fan, fan guard, etc. Can be prevented.

  Furthermore, the outdoor unit of the air conditioner of the present invention is the outdoor unit of any of the above air conditioners, wherein the sheet metal cover includes a through-hole through which the heat radiating fin protrudes, and the heat radiating fin is installed. The extension part which covers the circumference | surroundings of the site | part currently performed is provided integrally.

  According to the present invention, the sheet metal cover is provided with a through-hole through which the radiating fin is projected, and the extending portion that covers the periphery of the portion where the radiating fin is installed is integrally provided. The opening to be formed is limited to the through hole from which the heat dissipating fin is projected, and can be made as small as possible. Therefore, even if a fire breaks out from the resin control box side, it is possible to suppress the flame from blowing out to the heat exchanger chamber side to the minimum, and to prevent the fire from spreading to the heat exchanger chamber side. be able to.

  Furthermore, the outdoor unit of the air conditioner of the present invention is the outdoor unit of any of the above-described air conditioners, wherein the sheet metal cover supports a fan drive motor provided in the heat exchanger chamber. The motor bracket is installed by being bridged.

  According to the present invention, since the sheet metal cover is installed by being bridged to the motor bracket supporting the fan driving motor provided in the heat exchanger chamber, the sheet metal cover is screwed to the partition plate. Even if it is not fixed by, etc., the sheet metal cover will not fall off.Therefore, for example, the sheet metal cover can be incorporated into the resin control box side temporarily attached with aluminum tape etc. Installation can be facilitated.

  According to the present invention, even if the resin control box burns out due to a fire from an electrical component or the like incorporated in the resin control box, the sheet metal cover that closes the opening of the notch portion flames. It is possible to prevent the flame from blowing out to the heat exchanger chamber side and spreading to the resin fans and fan guards that are placed in the heat exchanger chamber. Even if a fire breaks out, it is possible to avoid a situation in which flames are ejected from the outdoor unit to the outside, and the outdoor unit can be configured to have a high fireproofing property. In addition, the control box in which the inverter is built should have a higher degree of sealing than the sheet metal control box, which is excellent in fire resistance, considering waterproofing of electrical components from the surrounding environment, protection against dust, and reduction of leakage current. Therefore, it is advantageous to be able to improve the fire prevention performance of the outdoor unit using the resin control box.

Embodiments according to the present invention will be described below with reference to the drawings.
[First Embodiment]
Hereinafter, a first embodiment of the present invention will be described with reference to FIGS. 1 and 2 (see FIG. 3 for a resin control box). FIG. 1 is a perspective view illustrating the inside of an outdoor unit of an air conditioner according to the first embodiment of the present invention, and FIG. 2 is an exploded view illustrating a configuration of a notch in a partition plate of the outdoor unit. A perspective view is shown.
The outdoor unit 1 includes a horizontally long rectangular parallelepiped housing 2. The inside of the housing 2 is partitioned into a machine room 4 side and a heat exchanger room 5 side by a partition plate 3.

  In the machine room 4, various devices such as a refrigerant compressor, a four-way valve for switching between heating and cooling, an expansion valve, an accumulator, refrigerant piping that connects these devices, and the like are shown in FIG. As shown in the figure, a resin control box 6 in which various electrical components 9 such as a control board 8 on which a power transistor 7 of an inverter constituting a drive circuit of the refrigerant compressor is mounted is installed. .

  An outdoor heat exchanger (heat exchanger) 10 is disposed in the heat exchanger chamber 5 so as to face suction ports opened on the back surface and the left side surface of the housing 2. Further, a fan guard 12 is provided on the outer surface side of the air outlet 11 opened in front of the housing 2, and a propeller fan driven by a fan driving motor 13 so as to face the fan guard 12. A (fan) 14 is provided and is configured to allow outside air to flow through the heat exchanger 10. The fan driving motor 13 is fixedly supported by a motor bracket 15 erected between the bottom surface of the housing 2 and the upper front portion, and a propeller fan 14 is attached to the rotating shaft thereof. .

  The partition plate 3 is provided with a notch 16 (see FIG. 2) for disposing the resin control box 6 in the upper part on the front side, and exchanges heat with the machine room 4 via the notch 16. The chamber 5 side is in communication. The resin control box 6 has a horizontally long box shape with a part of the upper part protruding in the horizontal direction, and the control board 8 and other electrical components 9 are incorporated therein as described above. In addition, an inverter power transistor 7 is disposed in a portion 6A that protrudes in the horizontal direction, and cooling heat radiation fins 17 are directed downward from the resin control box 6 so as to be in contact with the power transistor 7. (See FIG. 3).

  The resin control box 6 is arranged so that one end side is placed on a flange portion 16A formed by bending the upper edge of the notch portion 16 in the partition plate 3, and the other end side is illustrated with respect to the side surface of the housing 2. It is installed via an omitted bracket. As a result, one end portion of the resin control box 6 and its protruding portion 6A are exposed to the heat exchanger chamber 5 side from the opening 16B of the notch portion 16, and the radiating fins 17 are disposed in the heat exchanger chamber 5. It is designed to be cooled by the outside air that circulates. In addition, about the resin-made control boxes 6, it is desirable to use a flame-retardant resin material.

  Furthermore, the notch 16 of the partition plate 3 has a part of the opening 16B of the notch 16 so as to cover the end of the resin control box 6 that is exposed from the opening 16B of the notch 16. A sheet metal cover 18 is provided for closing. The sheet metal cover 18 is configured to be screwed to the partition plate 3 through the screw holes 18A, and the size thereof is at least 50% or more with respect to the opening 16B of the notch 16, preferably The size is such that it can block 70% or more.

With the configuration described above, according to the present embodiment, the following operational effects can be obtained.
During the operation of the air conditioner, in the outdoor unit 1, when the refrigerant compressed by the refrigerant compressor is cooled, the outdoor heat exchanger 10 dissipates heat to condensate and then supplies the refrigerant to the indoor unit side for cooling. During heating, high-temperature and high-pressure refrigerant gas is supplied to the indoor unit as it is for heating, and then the refrigerant condensed and liquefied on the indoor unit side is exchanged with the outside air by the outdoor heat exchanger 10 of the outdoor unit 1. Evaporates and acts to recompress.

  In the meantime, in the heat exchanger 10 of the outdoor unit 1, heat exchange is performed between the outside air circulated by the propeller fan (fan) 14 and the refrigerant, and condensation or evaporation of the refrigerant is repeated. At the same time, the outside air circulated in the heat exchanger chamber 5 via the propeller fan 14 comes into contact with the radiation fins 17 exposed from the resin control box 6 to the heat exchanger chamber 5, and the resin control box 6. The power transistor 7 which is a heat generating component provided in the power transistor 7 acts to dissipate heat and cool the power transistor 7.

  On the other hand, when the air conditioner is in operation, the electrical component 9 or the like provided in the resin control box 6 sparks due to, for example, aging or deterioration over time, thereby causing a fire from the resin control box 6 However, the opening 16B of the notch 16 provided in the partition plate 3 on which the resin control box 6 is disposed is mostly closed by the sheet metal cover 18, so that the fired resin It is possible to prevent the flame from the control box 6 from being blown to the heat exchanger chamber 5 side from the opening 16B of the notch 16 and spreading to the resin propeller fan 14 and the fan guard 12.

  For this reason, even if a fire breaks out in the resin control box 6, it is possible to avoid a situation in which flames are ejected from the outdoor unit 1 to the outside, and the outdoor unit 1 can be configured to have a high fire resistance. In addition, the control box 6 in which the inverter is incorporated is more sealed than a sheet metal control box that is superior in fire resistance when considering waterproofing from the surrounding environment, dustproof protection, leakage current reduction, etc. The resin control box 6 capable of increasing the height is desirable, and it is beneficial to improve the fireproof performance of the outdoor unit 1 using the resin control box 6 from such a surface.

Furthermore, in this embodiment, the sheet metal cover 18 is configured as a separate part, and is configured to be fixedly installed in the notch portion 16 of the partition plate 3 via the screw hole 18A. The fireproof performance of the outdoor unit 1 can be improved by additionally installing only the sheet metal cover 18 without changing. Therefore, it is possible to easily apply a fire prevention structure to the existing outdoor unit 1 with a minimum modification.
In addition to the fire resistance from the inside of the resin control box 6, as well as those in Patent Documents 1 and 2, a fire occurs outside the outdoor unit 1, and the flame enters the outdoor unit 1. Of course, it is possible to prevent the fire from spreading to the resin control box 6.

[Second Embodiment]
Next, a second embodiment of the present invention will be described with reference to FIG.
The present embodiment differs from the first embodiment described above in that the sheet metal cover 28 is integrally formed with the partition plate 3. Since other points are the same as those in the first embodiment, description thereof will be omitted.
In the present embodiment, as shown in FIG. 3, a flange portion 16A for arranging the resin control box 6 is provided on the upper edge of the notch portion 16 provided in the partition plate 3, and heat exchange is performed from the flange portion 16A. A sheet metal cover 28 extended upward so as to cover one end of the resin control box 6 exposed to the chamber 5 side is formed integrally with the partition plate 3. Note that the size of the sheet metal cover 28 is set so that at least 50% or more, preferably 70% or more, can be closed with respect to the opening 16B of the notch 16 as in the first embodiment.

  As described above, the sheet metal cover 28 that covers one end of the resin control box 6 exposed to the heat exchanger chamber 5 side is formed integrally with the partition plate 3 to thereby form the first embodiment. Thus, compared to a structure in which the sheet metal cover 18 is produced separately and fixedly installed on the partition plate 3, the number of steps, labor, cost required for the same, and the like can be reduced. Therefore, an increase in the number of parts can be suppressed, the assemblability and productivity of the outdoor unit 1 can be improved, and a corresponding cost reduction can be achieved.

[Third Embodiment]
Next, a third embodiment of the present invention will be described with reference to FIG.
The present embodiment is different from the first and second embodiments described above in that a locking portion 38A for the heat radiating fins 17 is integrally provided on the sheet metal cover 38. Since other points are the same as those in the first and second embodiments, description thereof will be omitted.
In the present embodiment, as shown in FIG. 4, a sheet metal cover provided at the notch 16 of the partition plate 3 and covering one end of the resin control box 6 exposed to the heat exchanger chamber 5 side. 38, the engaging portion 38 </ b> A that is engaged with the heat radiation fin 17 protruding downward from the resin control box 6 is integrally provided.

  As described above, the resin control box is configured by integrally providing the locking portion 38A that is locked to the heat radiating fins 17 with respect to the sheet metal cover 38 that covers one end of the resin control box 6. Even if the portion that supported the heat dissipating fins 17 was burned out and dropped due to the fire that occurred on the 6th side, the heat dissipating fins 17 are supported by the engaging portions 38A of the sheet metal cover 38. For this reason, the radiating fins 17 do not fall off together with the resin control box 6, and the flame that is blown out to the heat exchanger chamber 5 side by making the opening 16 </ b> B generated in the notch 16 of the partition plate 3 as small as possible. It is possible to minimize the spread of fire to the resin fan 14, fan guard 12, and the like. It should be noted that the present embodiment can be similarly applied even when the sheet metal cover 38 is integrally formed with the partition plate 3.

[Fourth Embodiment]
Next, a fourth embodiment of the present invention will be described with reference to FIG.
The present embodiment is different from the first and second embodiments described above in that the extending portion 48 </ b> A that covers the periphery of the portion where the heat dissipating fins 17 are installed in the sheet metal cover 48 is integrally provided. Different. Since other points are the same as those in the first and second embodiments, description thereof will be omitted.
In the present embodiment, as shown in FIG. 5, a sheet metal cover provided at the notch 16 of the partition plate 3 and covering one end of the resin control box 6 exposed to the heat exchanger chamber 5 side. 48 is provided with a through-hole 48B in which a radiation fin 17 projecting downward from the resin control box 6 can project, and projects in the horizontal direction of the resin control box 6 in which the radiation fin 17 is installed. The extending portion 48 </ b> A that covers the periphery of the portion 6 </ b> A is integrally provided.

  As described above, the sheet metal cover 48 that covers one end of the resin control box 6 is provided with a through hole 48B from which the heat radiating fins 17 are projected, and around the portion 6A where the heat radiating fins 17 are installed. By adopting a configuration in which the extending portion 48 </ b> A is integrally provided, the opening 16 </ b> B formed in the partition plate 3 by the notch portion 16 can be only the through hole 48 </ b> B from which the heat dissipating fins 17 are projected. 16B can be made as small as possible. Therefore, even if a fire breaks out from the resin control box 6 side, it is possible to minimize the jet of the flame to the heat exchanger chamber 5 side, and the fan 14 on the heat exchanger chamber 5 side. And fire spread to the fan guard 12 and the like can be prevented.

[Fifth Embodiment]
Next, a fifth embodiment of the present invention will be described with reference to FIG.
The present embodiment is different from the first to fourth embodiments in that the sheet metal cover 58 is integrally provided with a tongue portion 58A for bridging the sheet metal cover 58 to the motor bracket 15. Is different. Since other points are the same as those in the first to fourth embodiments, description thereof will be omitted.
In the present embodiment, as shown in FIG. 6, a sheet metal cover that is provided in the notch 16 of the partition plate 3 and covers one end of the resin control box 6 exposed to the heat exchanger chamber 5 side. 58, a tongue 58A for integrally installing the sheet metal cover 58 on the motor bracket 15 supporting the fan driving motor 13 is provided, and the tongue 58A is screwed to the motor bracket 15. It is configured to be screwed through the hole 58B. In the present embodiment, a tongue portion 58A is provided on a sheet metal cover 58 having substantially the same configuration as the sheet metal cover 48 according to the fourth embodiment (however, there is no screw-fastening portion for the partition plate 3). However, it is needless to say that the tongue 58A may be provided on the sheet metal cover having the same configuration as the sheet metal covers 18, 28, 38 according to the first to third embodiments described above.

  As described above, the tongue 58 </ b> A is integrally provided on the sheet metal cover 58 that covers one end of the resin control box 6, and the sheet metal cover 58 is bridged and installed on the motor bracket 15 provided in the heat exchanger chamber 5. With this configuration, the sheet metal cover 58 does not fall off even if the sheet metal cover 58 is not fixedly installed on the partition plate 3 with screws or the like. For this reason, installation of the sheet metal cover 58 can be facilitated, for example, the sheet metal cover 58 can be incorporated in a state where it is temporarily fixed to the resin control box 6 side with an aluminum tape or the like.

  In addition, this invention is not limited to the invention concerning the said embodiment, In the range which does not deviate from the summary, it can change suitably. For example, in the above-described embodiment, the resin control box 6 having a configuration in which the upper portion is partially protruded in the horizontal direction and the radiating fins 17 are provided downward in the protruding portion 6A has been described. The configuration of the control box 6 is not limited to this, and various modifications can be made such as a configuration in which the radiating fins 17 are protruded in the horizontal direction.

  Needless to say, the shapes of the sheet metal covers 18, 28, 38, 48, and 58 can be changed as appropriate in accordance with the shape of the protrusion of the resin control box 6 toward the heat exchange chamber 5. Further, it is effective for fire prevention measures that the sheet metal covers 18, 28, 38, 48, 58 are sized so that the remaining area of the opening 16B of the notch 16 is as small as possible in the installed state. It goes without saying that there is.

It is the perspective view which saw through the inside of the outdoor unit of the air conditioner which concerns on 1st Embodiment of this invention. It is a disassembled perspective view which shows the structure of the notch part of the partition plate in the outdoor unit of the air conditioner shown in FIG. It is a longitudinal cross-sectional view of the installation part of the resin-made control box in the outdoor unit of the air conditioner which concerns on 2nd Embodiment of this invention. It is a perspective view of the sheet-metal cover in the outdoor unit of the air conditioner which concerns on 3rd Embodiment of this invention. It is a perspective view of the sheet metal cover in the outdoor unit of the air harmony machine concerning a 4th embodiment of the present invention. It is a perspective view of the sheet metal cover in the outdoor unit of the air harmony machine concerning a 5th embodiment of the present invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Outdoor unit 2 Case 3 Partition plate 4 Machine room 5 Heat exchanger room 6 Resin control box 13 Fan drive motor 14 Propeller fan (fan)
15 Motor bracket 16 Notch portion 16B Opening 17 Radiation fins 18, 28, 38, 48, 58 Sheet metal cover 38A Locking portion 48A Extension portion 48B Through hole 58A Tongue portion

Claims (6)

A housing in which outdoor unit components are housed, a partition plate that partitions the inside of the housing into a machine room and a heat exchanger chamber, and a resin control box in which an inverter is incorporated, wherein the resin control box is A part of the resin control box, which is disposed on the upper edge of the notch provided in the upper part of the partition plate and includes at least the radiating fins of the inverter, is located on the heat exchanger chamber side from the opening of the notch In the outdoor unit of the air conditioner that is exposed to and installed in the machine room,
The notch portion of the partition plate is provided with a sheet metal cover that covers an end portion of the resin control box exposed from the opening of the notch portion and closes a part of the opening of the notch portion. The outdoor unit of the air conditioner characterized by being characterized.   The outdoor unit of an air conditioner according to claim 1, wherein the sheet metal cover is configured as a separate part and is fixedly installed in a notch portion of the partition plate.   The outdoor unit for an air conditioner according to claim 1, wherein the sheet metal cover is formed integrally with the partition plate.   The outdoor unit of an air conditioner according to any one of claims 1 to 3, wherein the sheet metal cover is integrally provided with a locking portion that is locked to the radiation fin.   2. The sheet metal cover is provided with a through-hole through which the heat radiating fin is projected, and an extending portion is integrally provided to cover a periphery of a portion where the heat radiating fin is installed. The outdoor unit of the air conditioner in any one of thru | or 3. The said sheet-metal cover is bridge | crosslinked and installed in the motor bracket which supports the motor for the fan drive provided in the said heat exchanger chamber, The installation in any one of Claim 1 thru | or 5 characterized by the above-mentioned. The outdoor unit of the described air conditioner.

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