JP2012241939A - Air conditioner outdoor unit - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an air conditioner outdoor unit that enhances maintenance properties of a reactor.SOLUTION: The air conditioner outdoor unit 10 includes: a partition plate 16 standing on a bottom plate 12 of a housing 11, the partition plate partitioning a heat exchange chamber R1 from a machine chamber R2; and a front panel 14B detachably attached to a front face of the machine chamber R2. The partition plate 16 comprises a partition plate body 16B and an electrical component unit 40 connected to an upper part of the partition plate body. The electrical component unit 40 includes a board 41. A reactor 80 to be connected to the board 41 is mounted, detachably from a front opening of the machine chamber R2 from which the front panel 14B is dismounted, on a face of the partition plate body 16B on the side of the mechanical chamber R2.

Description

  The present invention relates to an outdoor unit of an air conditioner.

  In general, an air conditioner in which a partition plate for partitioning a heat exchange chamber and a machine room is erected on the bottom plate of a housing, a heat exchanger and a blower are housed in the heat exchange room, and a compressor and an electrical unit are housed in the machine room The outdoor unit is known. In this type of outdoor unit, the inverter reactor is attached to the electrical unit so as to face the service opening on the front side of the housing so that maintenance can be easily performed (for example, see Patent Document 1). ).

JP 2010-175224 A

By the way, since the inverter reactor generates a large amount of heat, it can be considered that air is cooled by taking in outside air from a ventilation opening provided in the housing, for example. However, when the reactor faces the service opening and is attached to the electrical unit, in order to prevent the influence of rain water in the machine room R2, it is not possible to provide a ventilation opening on the front panel covering the service opening. For example, it is necessary to dissipate heat by connecting to a heat sink protruding in the heat exchange chamber. As a result, the structure of the electrical unit becomes complicated, and there is a problem that workability at the time of assembly and removal of the reactor is deteriorated.
An object of the present invention is to provide an outdoor unit of an air conditioner that improves the maintainability of a reactor.

In order to solve the above-described problems, the present invention provides an air conditioner including a partition plate that divides a heat exchange chamber and a machine room on a bottom plate of a housing, and a front panel that is detachably attached to the front surface of the machine room. In the outdoor unit, the partition plate includes a partition plate body and an electrical unit connected to an upper portion of the partition plate body. The electrical unit includes a substrate, and a reactor connected to the substrate is the partition plate body. The machine room side surface of the machine room is detachably attached from the front opening of the machine room from which the front panel is removed.
According to this configuration, since the reactor is easily detachably provided from the front opening of the machine room, the maintainability of the reactor is improved.

  In this configuration, the reactor has a substantially rectangular case that accommodates a winding, and is disposed between the case and the partition plate body, and transmits heat generated by the reactor to the partition plate body. A plate-shaped fixture for attaching the reactor to the partition plate body may be provided integrally with the case. Further, the plate-shaped fixture forms a heat radiating surface of the case, the heat radiating surface is brought into contact with the partition plate main body to connect the reactor and the partition plate main body, the partition plate main body, It is good also as a structure provided with the support tool which the said fixture fits detachably. The support may be configured such that a lower edge of the fixture is fitted and the fixture is supported from below. Further, the support member forms a gap in which the mounting bracket is fitted between the support member and the partition plate, and the gap is opened to the front surface, and the attachment is made from the opening to the gap. The reactor may be detachably supported on the partition plate body by sliding the lower edge of the tool. Moreover, it is good also as a structure which provided the waterproof part which prevents the water from the said heat exchange chamber to the said machine room in the said partition plate main body.

  According to the present invention, in the outdoor unit of the air conditioner, the partition plate that partitions the heat exchange chamber and the machine room is erected on the bottom plate of the housing, and the front panel of the machine room is detachably attached to the front unit. The partition plate includes a partition plate body and an electrical unit connected to an upper portion of the partition plate body. The electrical unit includes a substrate, and a reactor connected to the substrate is connected to the machine room side of the partition plate body. Since the reactor panel is detachably attached from the front opening of the machine room from which the front panel is removed, the reactor can be easily detached from the front opening of the machine room, improving the maintainability of the reactor. .

It is an external appearance perspective view of the outdoor unit which concerns on embodiment to which this invention is applied. It is a perspective view which shows the internal structure of an outdoor unit. It is a perspective view which shows the internal structure of the outdoor unit of a state which removed the electrical equipment unit. It is a perspective view which shows the reactor attached to the partition plate. It is a perspective view which shows a partition plate. It is a perspective view which shows an electrical equipment unit. It is the perspective view which looked at the electrical equipment unit and the partition plate from the back side. FIG. 7 is a cross-sectional perspective view of the electrical unit and partition plate cut along aa in FIG.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
The air conditioner according to the present embodiment includes an outdoor unit 10 and an indoor unit (not shown), and performs a cooling operation and a heating operation by flowing a refrigerant through a refrigerant circuit connected by a refrigerant pipe. The outdoor unit 10 is installed outside, exchanges heat with outdoor air, condenses the refrigerant during the cooling operation and releases heat to the outside air, and evaporates the refrigerant during the heating operation to take in heat from the outside air. In addition, the directions such as up and down and left and right described below indicate directions when the outdoor unit 10 is viewed from the front side in a state where the outdoor unit 10 is installed.

  FIG. 1 is a perspective view of the outdoor unit 10. The outdoor unit 10 includes a substantially rectangular parallelepiped box-shaped unit case (housing) 11, and the unit case 11 includes a bottom plate 12, a ceiling panel 13, a front panel 14, and an outer plate 15. The inside of the unit case 11 is vertically partitioned by a partition plate 60 (described later) standing on the bottom plate 12 and divided into a heat exchange chamber R1 and a machine chamber R2. The front panel 14 includes a first front panel 14A and a second front panel 14B that are divided into left and right parts with a partition plate 16 as a boundary. By removing the first front panel 14A, the operator can perform maintenance work on components in the heat exchange chamber R1 from the front side of the outdoor unit 10, and by removing the second front panel 14B, the operator can perform outdoor work. Maintenance work of parts in the machine room R2 can be performed from the front side of the unit 10.

  In addition, the first front panel 14A on the heat exchange chamber R1 side is formed with two air outlets 28 and 28 that blow out the air heat-exchanged inside the heat exchange chamber R1 in the vertical direction. The air outlets 28 and 28 are each covered with a net-like fan guard 29. Although not shown, the air outlets 28 and 28 are covered with, for example, a round flange-shaped fan cover, and a blower 22 described later is provided in the opening of the fan cover.

FIG. 2 is a perspective view of the outdoor unit 10 with the ceiling panel 13, the front panel 14, and the outer plate 15 removed. As shown in FIG. 2, the partition plate 60 includes a plate-like partition plate body 16 and an electrical unit 40 connected to the upper portion of the partition plate body 16.
In the heat exchange chamber R1, the heat exchanger 21 is accommodated on the back side, and the blowers 22 and 22 arranged in the vertical direction are accommodated on the front side. The heat exchanger 21 is formed by being bent into a substantially L shape when viewed from above, and is disposed along the back surface from the left side surface (outer side surface) of the heat exchange chamber R1. Thus, the heat exchanger 21 forms the left side surface and the back surface of the heat exchange chamber R1 (that is, the unit case 11), and the entire exposed surface from the left side surface to the back surface functions as a ventilation path (suction port). Although not shown, the surface of the heat exchanger 21 is covered with a finger made of a resin net or the like in order to prevent a human body or the like from contacting the heat exchanger 21.

The blower 22 is attached to a pair of left and right struts 24L and 24R disposed in the heat exchange chamber R1. These struts 24L and 24R hook the upper ends of the struts 24L and 24R to the upper edge of the heat exchanger 21, respectively, and the lower ends of the struts 24L and 24R are fixed to the bottom plate 12 by screws.
The blower 22 includes a fan motor 26 fixed to the upper portions of the support posts 24L and 24R via a pedestal 25, and a propeller fan (axial fan) 27 attached to the shaft of the fan motor 26. The propeller fan 27 is disposed close to the front side of the heat exchange chamber R1. When the propeller fan 27 is rotationally driven by the fan motor 26, outside air is sucked into the heat exchange chamber R1 from the periphery of the outdoor unit 10, more specifically from the back side and the left side of the heat exchanger 21, and heat is generated. Heat is exchanged with the refrigerant flowing in the exchanger 21, and the air is discharged out of the outdoor unit 10 through the air outlets 28 and 28 provided on the front surface of the heat exchange chamber R1. That is, the outdoor unit 10 is configured as a front blowing type that blows out air after heat exchange from the front.

  Further, the machine room R2 includes a compressor 31 that constitutes a part of the refrigerant circuit, an accumulator (not shown), a receiver tank 33, an oil separator (not shown), and valves such as a four-way valve 32 and an expansion valve (not shown). A refrigerant circuit component such as a body is connected by piping, and is accommodated in a substantially lower space of the machine room R2. The compressor 31 is driven by a rotational torque controlled by a PWM (Pulse Width Modulation) inverter, and an inverter reactor 80 (see FIG. 3) described later is provided in the machine room R2.

  A gas pipe service valve and a liquid pipe service valve are fixed in close proximity to the upper right side of the compressor 31 and on the front side of the machine room R2. The gas pipe service valve and the liquid pipe service valve are respectively connected to a gas pipe and a liquid pipe (not shown) of unit piping extending from the indoor unit, thereby constituting a refrigerant circuit for circulating the refrigerant. In addition, an electrical unit 40 in which various electrical components such as a control board for controlling the air conditioner are disposed is disposed above the machine room R2. The electrical unit 40 includes a support member 50, a first substrate 41, a second substrate 42, and a heat sink 55 that are supported by the support member 50. The electrical unit 40 is integrated with the support member 50 so that the heat sink 55 is fitted into the opening 5 that communicates the heat exchange chamber R1 and the machine room R2, and the fins 55A project to the heat exchange chamber R1 side. It faces the heat exchange chamber R1 and is provided in a space above the machine room R2. The support member 50 extends in the width direction of the partition plate 16, that is, in the front-rear direction of the unit case 11.

  As shown in FIG. 3, the partition plate main body 16 is disposed between the heat exchange chamber R1 and the machine room R2, and the partition plate main body portion 16B that separates the heat exchange chamber R1 and the machine chamber R2 from the partition plate main body 16B. The front side (end) 16C formed by bending the side edge on the front side of the plate body 16B to the machine room R2 side, and the side edge on the back side of the partition plate body 16B to the machine room R2 side. A back surface portion (end portion) 16D formed by being bent substantially parallel to the front surface portion 16C, and an upper surface portion (upper end surface) 16A formed by bending the upper edge portion of the partition plate main body portion 16B toward the machine room R2 are provided. The partition plate body 16 is formed by bending a thin sheet metal as described above, thereby improving the rigidity (strength) of the partition plate body 16.

  The partition plate body 16 is erected on the bottom plate 12 and is fixed by screwing the back surface portion 16D to the heat exchanger 21. Specifically, the heat exchanger 21 includes a tube plate 35 at the right end, and the tube plate 35 is formed with a rib 35A in which a side edge portion inside the unit case 11 is bent into a substantially L shape. Yes. The partition plate body 16 is fixed by screwing the back surface portion 16D to the rib 35A. An opening 5 is provided above the partition plate body 16 to communicate the heat exchange chamber R1 and the machine chamber R2.

A reactor 80 for an inverter of the compressor 31 is attached to the upper part of the machine room R2 on the partition plate body 16B. As shown in FIG. 4, the reactor 80 accommodates a winding 82 in a metal case 81 formed in a substantially rectangular shape. The reactor 80 is disposed between the case 81 and the partition plate 16, and is provided integrally with an attachment plate (attachment tool) 83 for attaching the reactor 80 to the partition plate 16. The reactor 80 is detachably attached to the partition plate body 16B by the attachment plate 83. The mounting plate 83 is formed in a thin plate shape with a metal having high thermal conductivity. The mounting plate 83 extends in the width direction of the surface where the case 81 abuts against the partition plate main body portion 16 </ b> B, and is formed larger than the vertical dimension of the case 81. In the reactor 80, both surfaces of the mounting plate 83 are in contact with the case 81 and the partition plate body 16B, and are supported by the partition plate body 16B. The mounting plate 83 is fixed to the upper part of the partition plate body 16B with screws 84 and 84.
The reactor 80 includes reactor terminals 86A and 86B, and is connected to the hybrid IC 57 mounted on the first substrate 41 via the reactor terminals 86A and 86B. The hybrid IC 57 uses the reactor 80 to perform inverter control of the compressor 31, and performs power factor improvement and harmonic control.

  The partition plate body 16B is provided with a support 85 that supports the mounting plate 81 integrally with the reactor 80. As shown in FIG. 5, the support tool 85 is subjected to sheet metal processing such as bending on a single metal plate, and a first fixing portion 86A for fixing the support tool 85 to the partition plate body portion 16B, A support portion 87 which is bent in a substantially L shape so as to project from the fixing portion 86A to the machine room R2 side, and forms a gap S between the partition plate main body portion 16B and the support 85, and a rear extension portion of the support portion 87 Is bent to the partition plate body portion 16B side, and a rear end portion 89 that closes the rear opening between the support portion 87 and the partition plate 16, and the support 85 is fixed to the partition plate body portion 16B on the rear end portion 89 side. A second fixing portion 86B is formed. A screw hole 86C is formed in the first fixing portion 86A and the second fixing portion 86B, and the support 85 is fixed to the partition plate main body portion 16B by a screw inserted into the screw hole 86C. The upper edge of the support part 87 is bent outward by an angle α to form an upper edge part 88.

  The gap S between the partition plate main body portion 16B and the support portion 87 opens on the front side, and the reactor 80 inserts and slides the lower edge portion of the mounting plate 83 into the gap S from this opening, thereby separating the partition plate main body portion 16B. Attached to. By providing the upper edge portion 88 at the upper edge of the support portion 87, the lower edge of the attachment plate 83 is guided to the upper edge portion 88, and the attachment plate 83 can be easily inserted into the gap S. The reactor 80 can be easily supported at a target position by being guided by the support portion 87 and sliding backward until the rear edge of the mounting plate 83 contacts the rear end portion 89 of the support 85.

  Above the support 85, a plurality of screw holes 86D are provided in the partition plate body 16B. The reactor 80 is supported by the support 85 in a state where the lower edge portion of the attachment plate 83 is fitted to the support portion 87, and the upper portion of the attachment plate 83 is inserted by a screw inserted into the screw hole 86D in the partition plate main body portion 16B. Fixed. The reactor 80 is heavy, and it is difficult to screw the reactor 80 while lifting the reactor 80 with one hand at the time of attachment, but according to this configuration, the attachment plate 83 for attaching the reactor 80 to the partition plate main body portion 16B. However, the mounting plate 83 can be fixed to the partition plate main body 16B with screws while supporting the weight of the reactor 80 by the support 85 so that the reactor 80 can be lifted from below. The workability of mounting can be improved.

  As shown in FIG. 2, the electrical unit 40 is placed on and connected to the upper surface portion 16 </ b> A of the partition plate body 16. As shown in FIG. 6, the electrical unit 40 is integrated with the support member 50, and the first substrate 41, the second substrate 42, and the heat sink 55 are supported on the support member 50. The first substrate 41 and the heat sink 55 are integrally fixed by a substrate holder 51, and the substrate holder 51 is detachably supported by the support member 50. The support member 50 includes a pair of guide rails 43, 43 that face the opening 5 that connects the heat exchange chamber R <b> 1 and the machine chamber R <b> 2 and are provided directly above the partition plate body 16. The guide rails 43 and 43 are substantially U-shaped cross-section rails facing each other, one guide rail 43 extends to the front surface portion 16C of the partition plate body 16, and the other guide rail 43 is in the vicinity of the back surface portion 16D. Extend to.

  A substrate holder 51 is attached between the guide rails 43. The substrate holder 51 is provided such that both side edge portions 51 </ b> A are fitted between the guide rails 43 and can be pulled upward along the guide rails 43 integrally with the first substrate 41 and the heat sink 55. The substrate holder 51 is formed in a frame shape by resin molding, and is emitted from a first substrate 41 on which an electrical component with a large amount of heat generation such as a hybrid IC (HIC) 57 is mounted, and an electrical component mounted on the first substrate 41. The heat sink 55 for radiating the generated heat is fixed integrally.

  More specifically, the first substrate 41 is fixed to the substrate holder 51 with screws or the like so that an electrical component with a large amount of heat generation faces the opening of the frame-shaped substrate holder 51 and closes the opening. The electrical component having a large heat generation mounted on the first substrate 41 is thermally connected to the heat sink 55 through the opening of the substrate holder 51. The heat sink 55 has a configuration in which metal plate members constituting the plurality of fins 55A are arranged at intervals in the vertical direction. The heat sink 55 is provided such that the fins 55 </ b> A project on the surface opposite to the surface on which the first substrate 41 is provided, and the outer periphery is fitted into the opening of the substrate holder 51.

  As described above, the first substrate 41 and the heat sink 55 are provided integrally with the substrate holder 51 so as to close the opening 5 that communicates the heat exchange chamber R1 and the machine chamber R2. In addition, the heat sink 55 is provided in the electrical unit 40 so that the front and rear end portions are fitted to the opening 5 and the plurality of fins 55A project to the heat exchange chamber R1 side. According to this configuration, the heat generated from the electrical components mounted on the first substrate 41 is radiated to the heat sink 55, and the heat sink 55 can be cooled by the wind flowing in the heat exchange chamber R1. The heat generated by the electrical components mounted on the first substrate 41 can be efficiently dissipated.

  A hood 59 that covers most of the entire projected area of the heat sink 55 is fixed to the substrate holder 51 at the top of the heat sink 55. The hood 59 is opened upward, and is formed in a substantially box shape in which the side surface on the machine room R2 side is cut out from front to back. The hood 59 is formed such that the upper end surfaces 59B of the three side surfaces 59A are in contact with the lower surface of the ceiling panel 13 of the unit case 11. According to this configuration, it is possible to prevent water such as rainwater that has entered the heat exchange chamber R1 from the back side of the heat exchanger 21 from entering the machine room R2 side from above the heat sink 55 with the hood 59.

  Further, the bottom surface 59C is cut out along the side surface 59A on the heat exchange chamber R1 side in the hood 59, and a cutout portion 59D that connects the upper space of the hood 59 and the heat exchange chamber R1 is formed. The air in the machine room R2 is attracted by the air flowing through the heat exchange chamber R1, and flows into the heat exchange chamber R1 through the notch 59D. Therefore, the air heated by the heat generated from the electrical components included in the electrical unit 40 can be circulated without being trapped in the machine room R2. According to these configurations, water such as rainwater that has entered the heat exchange chamber R1 from the back side of the heat exchanger 21 can be prevented from entering the machine room R2 side from the top of the heat sink 55. It is not necessary to cover the entire 40 with a case or the like. Therefore, the number of parts of the electrical unit 40 can be reduced, and maintenance of the electrical unit 40 can be easily performed by removing the ceiling panel 13 or the front panel 14B of the unit case 11, and maintenance of the electrical unit 40 can be performed. Can be improved.

  The support member 50 includes a second substrate mounting plate 45 that supports the second substrate 42 at a substantially right angle to the first substrate 41. The second board attachment plate 45 is attached to a lower part of the second board attachment part 45A provided substantially parallel to the guide rail 43, and a base part 45B formed in a substantially L-shaped cross section. With. The second substrate 42 is fixed to the second substrate attachment portion 45A by a fastener such as a screw 47. Alternatively, the second substrate 42 may be configured to be sandwiched between the second substrate attachment portion 45A with a clip or other fastener.

  The base portion 45B is provided at the lower end of the second substrate mounting portion 45A so as to protrude toward the front side of the machine room R2. The base portion 45B is provided with a terminal block mounting portion 45C including a plurality of terminal blocks 46A and 46B to which power supply terminals and connectors are coupled so as to hang down below the electrical unit 40. A communication line for communicating with an indoor unit or the like is connected to the terminal block 46A. A power line for supplying power to the outdoor unit 10 is connected to the terminal block 46B. Further, clips 46C and 46D for fixing the communication line and the power supply line are attached to the terminal block attaching portion 45C.

  In addition, a fixing portion 45D is formed on the left edge of the second substrate mounting portion 45A and the base portion 45B. Although not shown in the drawings, the fixing portion 45D extends to the surface to be attached to the outer plate 15 and the second front panel 14B, and is formed by bending the edge of the outer plate 15 to the inside of the unit case 11 and screwing it to the side edge portion. It is fixed with. The second substrate mounting portion 45A, the base portion 45B, the terminal block mounting portion 45C, and the fixing portion 45D are integrally formed by subjecting one metal plate to sheet metal processing such as bending.

  The substrate holder 51 includes a hook 58 provided above the first substrate 41. The hook 58 is made of metal such as aluminum, and the tip is bent downward to form a hook claw 58A. A hook groove 58 </ b> B is formed on the upper end surface of the second substrate mounting plate 45. When the substrate holder 51 is attached to the support member 50, the hooking claws 58A are locked in the hooking grooves 58B.

  In addition, the substrate holder 51 includes two screw holes 51E and 51E provided in the vicinity of the guide rails 43 and 43 in the upper part of the substrate holder 51. The substrate holder 51 is fixed to the support member 50 by screws inserted from the machine room R2 side through the screw holes 51E. That is, the substrate holder 51 is fixed to the support member 50 at the three points of the hooking claw 58A and the screw holes 51E and 51E. Further, since the hooking claws 58A for fixing the substrate holder 51 to the support member 50 and the screw holes 51E and 51E are all provided at the upper portion of the substrate holder 51, the upper opening of the outdoor unit 10 from which the ceiling panel 13 is removed. It is possible to easily remove the substrate holder 51.

  As shown in FIG. 7, the above-described hood 59 is provided on the upper portion of the heat sink 55 in which the front and rear ends are fitted to the opening 5. In addition, it is the perspective view which looked at the partition plate 16 and the electrical equipment unit 40 from the back side of FIG. 7, the outdoor unit 10, and the heat exchanger 21 abbreviate | omitted illustration. Between the plurality of fins 55 </ b> A of the heat sink 55, the air sucked into the heat exchange chamber R <b> 1 through the heat exchanger 21 flows by the blower 22 as indicated by arrows in FIG. 6. Along with this air flow, water such as rainwater enters the heat exchange chamber R1 through the heat exchanger 21, and flows by the air in the heat exchange chamber R1 or by rotation of the propeller fan 27 of the blower 22. It scatters and hits the support member 50 and the heat sink 55. A hood 59 is provided in the upper part of the heat sink 55, and this hood 59 can prevent water from entering the machine room R <b> 2 from above the heat sink 55.

  A first support plate 44 that connects the guide rails 43 and closes the lower portion of the opening 5 that connects the heat exchange chamber R <b> 1 and the machine chamber R <b> 2 is provided on the support member 50 at the lower portion of the heat sink 55. Further, the substrate holder 51 is provided with a flood prevention plate 65 fixed integrally with the heat sink 55. The infiltration prevention plate 65 is provided so as to cover the upper end portion of the first support plate 44, and prevents water from entering the contact surface with the substrate holder 51 from above the first support plate 44.

  Furthermore, as shown in FIG. 8, the upper surface part 16A of the partition plate main body 16 is provided with a flood prevention part (waterproof part) 16E. The inundation preventing portion 16E is formed by bending the end of the upper surface portion 16A on the machine room R2 side substantially vertically upward. The inundation preventing portion 16E is formed by bending the lower end of the first support member 44 in a substantially L shape on the machine chamber R2 side, and the end portion on the machine chamber R2 side of the pedestal portion 52 on which the lower end of the substrate holder 51 is placed. It is provided so as to surround. Water that has entered the machine room R2 from the heat sink 55 and the fitting surface S of the opening 5, that is, the fitting surface S of the substrate holder 51 and the guide rail 43, is caused by its own weight to support the support member 50 and the substrate holder 51. Is collected in the pedestal portion 52 through this contact surface. According to this configuration, the infiltration prevention portion 16E surrounding the machine chamber R2 side end portion of the pedestal portion 52 is provided integrally with the partition plate body 16. Therefore, the water collected in the pedestal part 52 passes through the space between the pedestal part 52 and the upper surface part 16A of the partition plate main body part 16B to the heat exchange chamber R1 side without being submerged in the machine room R2 side. Drained. For this reason, it is possible to efficiently cool the heat sink 55 without blocking the road as the wind of the heat sink 55, and to prevent water from entering the machine room R2. In addition, since the inundation prevention unit 16E is provided in the upper part of the reactor 80, the water infiltrated on the machine room R2 side can be prevented from being applied to the reactor 80 through the partition plate body 16, and the reactor 80 It is not necessary to attach the electrical unit 40 to the electrical unit 40 and cover the electrical unit 40 with a waterproof cover or the like, and the reactor 80 can be waterproofed with a simple structure.

  As described above, according to the embodiment to which the present invention is applied, the partition plate 60 that partitions the heat exchange chamber R1 and the machine room R2 is erected on the bottom plate 12 of the unit case 11, and is attached to and detached from the front surface of the machine room R1. In the outdoor unit 10 of the air conditioner having a front panel 14B freely, the partition plate 60 includes a partition plate body 16 and an electrical unit 40 connected to the upper portion of the partition plate body 16, and the electrical unit 40 is a substrate. 41, and a reactor 80 connected to the substrate 41 is detachably attached to the surface of the partition plate body 16 on the machine room R2 side from the front opening of the machine room R2 from which the front panel 14B is removed. Thereby, the reactor can be detached from the front opening of the machine room R2, and the maintainability of the reactor can be improved with a simple structure.

  Further, according to the embodiment to which the present invention is applied, the reactor 80 has a substantially rectangular case 81 that accommodates the winding 82, and is disposed between the case 81 and the partition plate body 16. The plate-like fixture 83 that attaches the reactor 80 to the partition plate body 16 is provided integrally with the case 81, so that the reactor 80 can be easily attached to and detached from the partition plate body 16. In addition, the heat generated by the reactor 80 can be transmitted to the partition plate body 16 via the fixture 83, and the reactor can be efficiently operated using the partition plate body 16 that is air-cooled by the air flowing in the heat exchange chamber R1. The emitted heat can be dissipated.

  Further, according to the embodiment to which the present invention is applied, the plate-shaped fixture 83 forms the heat radiating surface 81A of the case 81, and the heat radiating surface 81A is brought into contact with the partition plate main body 16 so that the reactor 80 and the partition plate main body 16, and the partition plate main body 16 includes a support tool 85 to which the fixture 83 is detachably fitted. Therefore, the partition plate main body 16 and the case are sandwiched between the plate-like fixtures 83. 81 can be attached in close contact with the heat radiation surface 81 </ b> A, and heat generated by the reactor 80 can be efficiently transferred to the partition plate body 16 and radiated using the partition plate body 16. Further, since the reactor 80 can be fitted to the support 85 and supported by the partition plate body 16, the reactor 80 can be easily attached and detached, and the maintainability of the reactor 80 can be improved.

  Further, according to the embodiment to which the present invention is applied, the support tool 85 is relatively heavy and is supported by one hand because the lower edge portion 83C of the attachment tool 83 is fitted and the attachment tool 83 is supported from below. In this state, it is possible to easily attach the reactor 80, which is difficult to fix with screws, and the maintainability of the reactor 80 can be improved.

  Further, according to the embodiment to which the present invention is applied, the support tool 85 forms a gap S in which the fixture 83 is fitted between the support tool 85 and the partition plate 16, and the gap S is opened on the front surface. Then, the lower edge 83C of the fixture 83 is slid into the gap S from the opening, and the reactor 80 is detachably supported on the partition plate main body 16, so that it is supported from the front opening of the machine room R2 from which the front panel 14B is removed. Since the reactor 80 can be attached by sliding the fixture 83 between the tool 85 and the partition plate body 16, and the reactor 80 can be easily attached and detached, the maintainability of the reactor 80 is improved.

  Further, according to the embodiment to which the present invention is applied, the partition plate body 16 is provided with the waterproof portion 16E that prevents water from entering the machine room R1 from the heat exchange chamber R1, so that the partition plate body 16 has a machine chamber R2 side. It is possible to prevent water such as rainwater from entering the heat exchange chamber R1, and it is possible to prevent rainwater or the like from being applied to the reactor 80 without covering the reactor 80 with a waterproof cover or the like. Therefore, the number of parts can be reduced and the serviceability of the reactor 80 can be improved.

R1 Heat exchange chamber R2 Machine room 10 Outdoor unit 11 Unit case (housing)
12 Bottom plate 14B Front panel 16 Partition body 16E Waterproof part (submerged waterproof part)
40 Electrical Unit 59 Hood 60 Partition Plate 80 Reactor 81 Case 82 Winding 83 Mounting Tool 85 Supporting Tool

Claims (6)

  In the outdoor unit of the air conditioner having a partition plate that divides the heat exchange chamber and the machine room upright on the bottom plate of the housing and having a front panel detachably attached to the front surface of the machine room, the partition plate is a partition plate body And an electrical unit connected to the upper part of the partition plate body, the electrical unit comprising a substrate, and a reactor connected to the substrate is disposed on the machine chamber side surface of the partition plate body, the front surface An outdoor unit of an air conditioner, which is detachably attached from a front opening of the machine room from which a panel is removed.   The reactor has a substantially rectangular case that accommodates a winding, and is disposed between the case and the partition plate body, and transfers heat generated by the reactor to the partition plate body. The outdoor unit of the air conditioner according to claim 1, wherein a plate-like fixture attached to the partition plate body is provided integrally with the case.   The plate-shaped fixture forms a heat radiating surface of the case, the heat radiating surface is brought into contact with the partition plate main body to connect the reactor and the partition plate main body, and the partition plate main body is attached to the attachment The outdoor unit of an air conditioner according to claim 2, further comprising a support tool to which the tool is detachably fitted.   The outdoor unit of the air conditioner according to claim 3, wherein the support is fitted with a lower edge of the fixture and supports the fixture from below.   The support forms a gap in which the mounting bracket is fitted between the support and the partition plate, and the gap opens to the front surface, and from the opening to the gap, The outdoor unit of the air conditioner according to claim 3 or 4, wherein the reactor is detachably supported by the partition plate body by sliding a lower edge portion.   The outdoor unit of the air conditioner according to any one of claims 1 to 5, wherein the partition plate main body is provided with a waterproof portion that prevents water from entering the machine room from the heat exchange chamber.

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