AIR-CONDITIONING APPARATUS OUTDOOR UNIT

Abstract

An air-conditioning apparatus outdoor unit includes a casing, a separator, and an electrical component unit. The electrical component unit includes a control board, a control board supporting component, and a radiating portion protecting component and a partition wall portion protecting component. The control board supporting component includes a slit peripheral edge portion, a partition wall portion, and a side wall portion. The radiating portion protecting component includes a first protecting portion, a first side wall portion, and a protruding portion provided at one end portion of the first protecting portion that is close to the partition wall portion. The partition wall portion protecting component includes a second protecting portion, and provided with a pair of insertion portions and a second side wall portion provided with a pair of second openings into which the pair of second claw portions are fitted.

Description

CROSS REFERENCE TO RELATED APPLICATION

This application is a U.S. national stage application of PCT/JP2022/034190 filed on Sep. 13, 2022, the contents of which are incorporated herein by reference.

TECHNICAL FIELD

The present disclosure relates to an air-conditioning apparatus outdoor unit including an electrical component unit.

BACKGROUND

There has been disclosed a conventional air-conditioning apparatus outdoor unit including an electrical component unit whose exterior portion is surrounded by a steel plate inside a casing (see, for example, Patent Literature 1). The electrical component unit of Patent Literature 1 includes a steel-plated storage box in which a substrate mounted with electrical components is stored, a steel-plated lid, and a resin frame placed between the storage box and the lid. Further, since a mounting surface of the substrate on which the electrical components are mounted have projecting and depressed shapes formed by the electrical components, a radiating component, or other components, the storage box, which is placed close to the mounting surface of the substrate on which the electrical components are mounted, is constituted by a plurality of components (namely a first storage box and a second storage box). This is because if the storage box is constituted by a single component, it ends up with a poor material layout, considering the size of the component. Moreover, the first storage box and the second storage box differ in height from each other, and assembling them to a frame causes spaces differing in height from each other to be formed inside the storage box, so that the mounting surface of the substrate on which the electrical components are mounted can be placed in those spaces.

PATENT LITERATURE

Patent Literature 1: Japanese Unexamined Patent Application Publication No. 2011-163673

However, the electrical component unit of Patent Literature 1 undesirably needs the first storage box and the second storage box to be mechanically fastened by screws to be assembled to the frame and therefore causes an increase in manufacturing cost.

SUMMARY

The present disclosure was made to solve such problems and has as an object to provide an air-conditioning apparatus outdoor unit that makes it possible to reduce manufacturing cost of an electrical component unit.

An air-conditioning apparatus outdoor unit according to an embodiment of the present disclosure includes a casing constituting an outer shell, a separator configured to partition an interior portion of the casing into an air-sending device room in which an air-sending fan is provided and a machine room in which a compressor is provided, and an electrical component unit fixed to an upper part of the separator. The electrical component unit includes a control board including a plurality of electrical components and a radiating component, the plurality of electrical components being placed on a mounting surface, the radiating component having a plate-shaped portion and a plurality of fins, the plate-shaped portion being attached to a subset of electrical components of the plurality of electrical components and covering the subset of electrical components, the plurality of fins extending from the plate-shaped portion in a direction away from the mounting surface, a control board supporting component attached to the control board and supporting a peripheral edge portion of the control board, and a radiating portion protecting component and a partition wall portion protecting component both made of metal, attached to the control board supporting component from a side of the mounting surface of the control board, and covering the control board supporting component. The control board supporting component includes a slit peripheral edge portion provided at a peripheral edge of a slit through which the plurality of fins are passed and covering the plate-shaped portion of the radiating component, a partition wall portion extending in a direction that is same as the direction in which the plurality of fins extend and partitioning the interior portion of the casing into the air-sending device room and the machine room together with the separator, and a side wall portion provided with a pair of first claw portions and a pair of second claw portions and surrounding the peripheral edge portion of the control board. The radiating portion protecting component includes a first protecting portion provided at a peripheral edge of a slit through which the plurality of fins are passed and covering one surface of the slit peripheral edge portion, a first side wall portion provided with a pair of first openings into which the pair of first claw portions are fitted, and a protruding portion provided at one end portion of the first protecting portion that is close to the partition wall portion and extending in a direction that is same as the direction in which the plurality of fins extend. The partition wall portion protecting component includes a second protecting portion extending in a direction that is same as the direction in which the plurality of fins extend, covering one surface of the partition wall portion, and provided with a pair of insertion portions into which corner portions of the protruding portion of the radiating portion protecting component are inserted and a second side wall portion provided with a pair of second openings into which the pair of second claw portions are fitted.

The air-conditioning apparatus outdoor unit according to the embodiment of the present disclosure is structured such that the radiating portion protecting component and the partition wall portion protecting component, which are made of metal, do not need to be mechanically fastened by screws to be assembled to the control board supporting component of the electrical component unit, thus making it possible to reduce manufacturing cost of the electrical component unit.

BRIEF DESCRIPTION OF DRAWINGS

FIG. 1 is a perspective view of an air-conditioning apparatus outdoor unit according to an embodiment.

FIG. 2 is an exploded perspective view of the air-conditioning apparatus outdoor unit according to the embodiment.

FIG. 3 is a perspective view of an electrical component unit of the air-conditioning apparatus outdoor unit according to the embodiment as seen from above.

FIG. 4 is a perspective view of the electrical component unit of the air-conditioning apparatus outdoor unit according to the embodiment as seen from below.

FIG. 5 is an exploded perspective view of the electrical component unit of the air-conditioning apparatus outdoor unit according to the embodiment.

FIG. 6 is a perspective view of a control board supporting component of the electrical component unit of the air-conditioning apparatus outdoor unit according to the embodiment as seen from the left and below.

FIG. 7 is a perspective view of the control board supporting component of the electrical component unit of the air-conditioning apparatus outdoor unit according to the embodiment as seen from the right and below.

FIG. 8 is a perspective view of a radiating portion protecting component of the electrical component unit of the air-conditioning apparatus outdoor unit according to the embodiment as seen from above.

FIG. 9 is a perspective view of a partition wall portion protecting component of the electrical component unit of the air-conditioning apparatus outdoor unit according to the embodiment as seen from below.

FIG. 10 is a perspective view of the partition wall portion protecting component of the electrical component unit of the air-conditioning apparatus outdoor unit according to the embodiment as seen from above.

FIG. 11 is an enlarged view of a main part of the partition wall portion protecting component shown in FIG. 10.

FIG. 12 is a perspective view showing a state in which the radiating portion protecting component and the partition wall portion protecting component of the electrical component unit of the air-conditioning apparatus outdoor unit according to the embodiment are assembled together.

FIG. 13 is a first perspective view showing a method for assembling together the radiating portion protecting component and the partition wall portion protecting component of the electrical component unit of the air-conditioning apparatus outdoor unit according to the embodiment.

FIG. 14 is a second perspective view showing the method for assembling together the radiating portion protecting component and the partition wall portion protecting component of the electrical component unit of the air-conditioning apparatus outdoor unit according to the embodiment.

FIG. 15 is a perspective view showing, as seen from above, a state in which the radiating portion protecting component and the partition wall portion protecting component are assembled to the control board supporting component of the electrical component unit of the air-conditioning apparatus outdoor unit according to the embodiment.

FIG. 16 is a perspective view showing, as seen from below, the state in which the radiating portion protecting component and the partition wall portion protecting component are assembled to the control board supporting component of the electrical component unit of the air-conditioning apparatus outdoor unit according to the embodiment.

FIG. 17 is a perspective view showing, as seen from above, a method for assembling the radiating portion protecting component and the partition wall portion protecting component to the control board supporting component of the electrical component unit of the air-conditioning apparatus outdoor unit according to the embodiment.

FIG. 18 is a perspective view showing, as seen from below, the method for assembling the radiating portion protecting component and the partition wall portion protecting component to the control board supporting component of the electrical component unit of the air-conditioning apparatus outdoor unit according to the embodiment.

DETAILED DESCRIPTION

In the following, an air-conditioning apparatus outdoor unit according to an embodiment is described with reference to the drawings. It should be noted that the present disclosure is not limited by the embodiment described below. Further, in the following drawings, relationships in size between constituent elements may be different from actual ones. Further, the directive terms (such as “upper”, “lower”, “right”, “left”, “front”, and “back”) used as appropriate for ease of comprehension are merely so written for convenience of explanation, and are not intended to limit the present disclosure. Unless otherwise specified, these directive terms means directions in a case in which the air-conditioning apparatus outdoor unit is viewed from the front. Further, constituent elements given identical reference signs in the following drawings are identical or equivalent to each other, and these reference signs are adhered to throughout the full text of the description.

Embodiment

FIG. 1 is a perspective view of an air-conditioning apparatus outdoor unit 100 according to an embodiment. FIG. 2 is an exploded perspective view of the air-conditioning apparatus outdoor unit 100 according to the embodiment.

As shown in FIGS. 1 and 2, the air-conditioning apparatus outdoor unit 100 according to the embodiment includes a casing 1 constituting an outer shell. The casing 1 is constituted by a front side face panel 10, a right side face panel 11, a bottom face panel 12, and a top face panel 13. The front side face panel 10 constitutes a front face and a left side face of the casing 1 and is constituted, for example, by an L-shaped component when seen in a plan view. The front side face panel 10 has a circular air outlet formed therethrough and has attached thereto a fan guard 17 covering the air outlet. The right side face panel 11 constitutes a right side face of the casing 1 and has an opening 11a formed therethrough. The right side face panel 11 has attached to an outer surface thereof a protective cover 18 covering the opening 11a. The bottom face panel 12 constitutes a bottom face of the casing 1. The bottom face panel 12 has attached to a lower surface thereof legs 15 that are fixed to a place of installation. The top face panel 13 constitutes a top face of the casing 1.

The casing 1 has its interior portion partitioned by a separator 7 into an air-sending device room 2 and a machine room 3. In the air-sending device room 2, a heat exchanger 20, an air-sending fan 21, a motor 22, and a motor mount 23 are provided. The heat exchanger 20 functions as a condenser during cooling operation and functions as an evaporator during heating operation. The heat exchanger 20 has, for example, an L shape when seen in a plan view and is provided to extend from a back face to the left side face of the casing 1. The heat exchanger 20 is a fin and tube heat exchanger including a plurality of fins arranged in parallel and heat transfer tubes passing through the plurality of fins and are mounted on an upper surface of the bottom face panel 12 such that the heat transfer tubes are kept horizontal. The motor mount 23 is a component configured to retain the motor 22 with the air-sending fan 21 attached to the motor 22 and is provided in front of the heat exchanger 20. The outdoor unit 100 is configured such that activation of the air-sending fan 21 causes air passing through the heat exchanger 20 to be introduced into and pass through the air-sending fan 20 to be discharged toward a place that is in front of the outdoor unit 100. This causes the outdoor unit 100 to be configured such that, for example, during cooling operation, refrigerant is cooled by air in the heat exchanger 20 and the air passing through the heat exchanger 20 is heated by exchanging heat with the refrigerant.

In the machine room 3, a compressor 30, a refrigerant pipe 31, and an electrical component unit 40 are provided. The compressor 30 is mounted on the upper surface of the bottom face panel 12 and compresses refrigerant sent from an indoor unit (not illustrated). The refrigerant compressed by the compressor 30 is sent to the heat exchanger 20 through the refrigerant pipe 31. The electrical component unit 40 is constituted by a circuit unit 200 and a terminal unit 300. In the interior portion of the casing 1, the circuit unit 200 is placed astride the air-sending device room 2 and the machine room 3 and attached to an upper part of the separator 7. The terminal unit 300 is placed in the machine room 3 and attached to an end portion of the circuit unit 200 that is close to the right side face panel 11.

FIG. 3 is a perspective view of the electrical component unit 40 of the air-conditioning apparatus outdoor unit 100 according to the embodiment as seen from above. FIG. 4 is a perspective view of the electrical component unit 40 of the air-conditioning apparatus outdoor unit 100 according to the embodiment as seen from below. FIG. 5 is an exploded perspective view of the electrical component unit 40 of the air-conditioning apparatus outdoor unit 100 according to the embodiment.

As shown in FIGS. 3 to 5, the terminal unit 300 is configured to be detachable from the circuit unit 200 and includes a terminal mount 61 and a terminal mount supporting component 62 configured to support the terminal mount 61. To the terminal mount 61, a plug of a wire connected to an external commercial power source is connected via the protective cover 18. As shown in FIG. 2, a portion of the terminal mount 61 to which the plug is connected is attached to the terminal mount supporting component 62 in such a manner as to face in the direction of the right side face panel 11. An attachment portion of the terminal mount 61 is disposed to extend diagonally downward from the end portion of the circuit unit 200 that is close to the right side face panel 11.

As shown in FIGS. 3 to 5, the circuit unit 200 includes a control board 50 to which a plurality of electrical components 51 such as capacitors and resistors are attached by soldering. The control board 50 is provided with an inverter circuit configured to control the frequency of an alternating current that drives the compressor 30 and the motor 22 of the air-sending fan 21. The inverter circuit is an electronic circuit configured to generate a frequency-controlled alternating current from a direct current. Further, the control board 50 can be provided with a converter circuit configured to convert an alternating current flowing from the external power source via the terminal mount 61 into a direct current. The converter circuit may be integrally mounted on the same control board 50 as that on which the inverter circuit is mounted or may be mounted on a control board that is different from that on which the inverter circuit is mounted.

The plurality of electrical components 51 are attached to a mounting surface of the control board 50. Further, the plurality of electrical components 51 are soldered to a back surface of the control board 50 opposite to the mounting surface. That is, the mounting surface of the control board 50 is a surface to which the plurality of electrical components 51 are attached, and the back surface of the control board 50 is a surface to which the plurality of electrical components 51 are soldered.

Of the plurality of electrical components attached to the mounting surface of the control board 50, a subset of electrical components 51 that produce heat, such as transistors, have a radiating component 52 attached thereto. The radiating component 52 has a plate-shaped portion 52a covering the subset of electrical components 51 and a plurality of fins 52b extending from the plate-shaped portion 52a in a direction away from the control board 50. Providing the radiating component 52 with the plurality of the fins 52b makes it possible to increase a heat transfer area with outside air, thus making it possible to efficiently release heat produced by the subset of electrical components 51. Further, placing the radiating component 52 astride the air-sending device room 2 in the upper part of the separator 7 makes it possible to efficiently release heat into air that is sent from the air-sending fan 21.

The circuit unit 200 includes, beside the back surface of the control board 50, a control board protecting component 220 made of metal. Further, the circuit unit 200 includes, beside the mounting surface of the control board 50, a control board supporting component 210 made of resin, a radiating portion protecting component 230 made of metal, and a partition wall portion protecting component 240 made of metal.

The control board protecting component 220 is attached to the control board supporting component 210 and covers the back surface of the control board 50. The control board protecting component 220 protects the back surface of the control board 50 from entry of water or dust. Further, the control board supporting component 210 is attached to the control board 50 and supports a peripheral edge portion of the control board 50. The control board supporting component 210 protects the control board 50, for example, from outer shocks.

FIG. 6 is a perspective view of the control board supporting component 210 of the electrical component unit 40 of the air-conditioning apparatus outdoor unit 100 according to the embodiment as seen from the left and below. FIG. 7 is a perspective view of the control board supporting component 210 of the electrical component unit 40 of the air-conditioning apparatus outdoor unit 100 according to the embodiment as seen from the right and below.

As shown in FIGS. 6 and 7, the control board supporting component 210 includes a rectangular principal surface portion 211 whose central portion is open in a plan view of the casing 1. Further, the control board supporting component 210 has its four side portions provided with a side wall portion 212 extending in a direction opposite to the direction in which the fins 52b of the radiating component 52 extend and surrounding the peripheral edge portion of the control board 50. This side wall portion 212 is constituted by an outer side wall portion 213 provided on an outer side and an inner side wall portion 214 provided on an inner side, and a groove 212a is formed between the outer side wall portion 213 and the inner side wall portion 214 (see FIG. 15, which will be described later). Moreover, the side wall portion 221 (see FIG. 5) of the control board protecting component 220 is inserted into the groove 212a of the control board supporting component 210. Doing so causes claw portions (not illustrated) provided in the outer side wall portion 213 and the inner side wall portion 214 to be fitted into openings (not illustrated) formed in the side wall portions 221, so that the control board protecting component 220 is fitted into the control board supporting component 210. Further, the control board supporting component 210 has a partition wall portion 215 extending in a direction that is same as the direction in which the fins 52b of the radiating component 52 extend. The partition wall portion 215 has its front end portion attached to the upper part of the separator 7, and the partition wall portion 215 functions as a wall that partitions the air-sending device room 2 and the machine room 3 from each other. On a lower surface of the partition wall portion 215 extending in a horizontal direction from the front end portion, a protrusion portion 216 protruding in a direction that is same as the direction in which the fins 52b of the radiating component 52 extend is provided. Further, a rectangular slit 217a through which the fins 52b are passed is formed closer to the air-sending device room 2 than the partition wall portion 215 and configured so as not to hinder release of heat from the fins 52b. The slit 217a has its peripheral edge provided with a slit peripheral edge portion 217. This slit peripheral edge portion 217 covers the plate-shaped portion 52a of the radiating component 52 and prevent entry of water or dust into the plate-shaped portion 52a. Further, a portion of the principal surface portion 211 that is close to the machine room 3 is provided with a supporting component attachment portion 218 to which the terminal mount supporting component 62 is attachable. Further, a lower part of the outer side wall portion 213 of the side wall portion 212 is provided with a claw portion 219 protruding inward. The claw portion 219 is constituted by a pair of first claw portions 219a provided in such a position as to hold the slit peripheral edge portion 217 from a front-back direction and protruding toward the slit peripheral edge portion 217 and a pair of second claw portions 219b provided in such a position as to hold the partition wall portion 215 from a front-back direction and protruding toward the partition wall portion 215.

FIG. 8 is a perspective view of the radiating portion protecting component 230 of the electrical component unit 40 of the air-conditioning apparatus outdoor unit 100 according to the embodiment as seen from above. FIG. 9 is a perspective view of the partition wall portion protecting component 240 of the electrical component unit 40 of the air-conditioning apparatus outdoor unit 100 according to the embodiment as seen from below. FIG. 10 is a perspective view of the partition wall portion protecting component 240 of the electrical component unit 40 of the air-conditioning apparatus outdoor unit 100 according to the embodiment as seen from above. FIG. 11 is an enlarged view of a main part of the partition wall portion protecting component 240 shown in FIG. 10.

As shown in FIG. 8, the radiating portion protecting component 230 has a rectangular shape in a plan view of the casing 1. The radiating portion protecting component 230 has formed therein a rectangular slit 231a through which the fins 52b are passed and is configured so as not to hinder release of heat from the fins 52b. The slit 231a has its peripheral edge provided with a first protecting portion 231 covering one surface of the slit peripheral edge portion 217 (i.e. a surface of the slit peripheral edge portion 217 that faces the mounting surface of the control board 50). Further, at three end portions of the first protecting portion 231 other than an end portion of the first protecting portion 231 that is close to the partition wall portion 215, first side wall portions 232 extending in a direction opposite to the direction in which the fins 52b of the radiating component 52 extend are provided. Moreover, the front and back fist side wall portions 232 are each provided with a rectangular first opening 232a. Further, at an end portion of the first protecting portion 231 that is close to the machine room 3, a rectangular protruding portion 233 extending in a direction that is same as the direction in which the fins 52b of the radiating component 52 extend is provided.

As shown in FIG. 10, the partition wall portion protecting component 240 has an L shape in a plan view of the casing 1. The partition wall portion protecting component 240 has a second protecting portion 241 extending in a direction that is same as the direction in which the fins 52b of the radiating component 52 extend and covering one surface of the partition wall portion 215 (i.e. a surface of the partition wall portion 215 that faces the air-sending device room 2). As shown in FIGS. 9 to 11, the second protecting portion 241 has a pair of insertion portions 243 provided in the front and back thereof. Each of the insertion portions 243 is constituted by a projecting portion 244 provided by a part of the second protecting portion 241 protruding toward one surface (i.e. a surface that faces the machine room 3) and having a gap into which the protrusion portion 216 is inserted by a dimension of plate thickness and a slit portion 245 formed by notching an upper part and an inner side part of the projecting portion 244. The projecting portion 244 has a supporting structure that serves as a stopper in a downward direction and in the direction of an outer side part of the projecting portion 244. Further, the second protection portion 241 has its front and back end portions provided with second side wall portions 242 extending toward the machine room 3. Moreover, the front and back second side wall portions 242 are each provided with a rectangular second opening 242a. Further, on a lower surface of the second protecting portion 241 extending in a horizontal direction from a front end portion of the second protecting portion 241, a hole 246 into which the protruding portion 233 is inserted is provided.

FIG. 12 is a perspective view showing a state in which the radiating portion protecting component 230 and the partition wall portion protecting component 240 of the electrical component unit 40 of the air-conditioning apparatus outdoor unit 100 according to the embodiment are assembled together. FIG. 13 is a first perspective view showing a method for assembling together the radiating portion protecting component 230 and the partition wall portion protecting component 240 of the electrical component unit 40 of the air-conditioning apparatus outdoor unit 100 according to the embodiment. FIG. 14 is a second perspective view showing the method for assembling together the radiating portion protecting component 230 and the partition wall portion protecting component 240 of the electrical component unit 40 of the air-conditioning apparatus outdoor unit 100 according to the embodiment.

As shown in FIGS. 13 and 14, two corner portions of the protruding portion 233 of the radiating portion protecting component 230 are inserted into the pair of insertion portions 243 through the slit portions 245 formed in upper parts of the insertion portions 243 of the partition wall portion protecting component 240. Doing so causes the two corner portions of the protruding portion 233 of the radiating portion protecting component 230 to be supported by the projecting portions 244 of the pair of insertion portions 243, so that the radiating portion protecting component 230 and the partition wall portion protecting component 240 are assembled together. At this point in time, the insertion is facilitated by guiding the protruding portion 233 of the radiating portion protecting component 230 through the projecting portions 244 of the insertion portions 243 of the radiating portion protecting component 230. Further, the shapes of the projecting portions 244 of the insertion portions 243 of the radiating portion protecting component 230 cause the two corner portions of the protruding portion 233 of the radiating portion protecting component 230 to be inserted into the pair of insertion portions 243 of the partition wall portion protecting component 240, whereby movements of the radiating portion protecting component 230 in a downward direction, a front-back direction, and a right-left direction are regulated. As shown in FIG. 12, in a state in which the radiating portion protecting component 230 and the partition wall portion protecting component 240 are assembled together, the first protecting portion 231 of the radiating portion protecting component 230 and the second protecting portion 241 the partition wall portion protecting component 240 are placed in a perpendicular direction.

FIG. 15 is a perspective view showing, as seen from above, a state in which the radiating portion protecting component 230 and the partition wall portion protecting component 240 are assembled to the control board supporting component 210 of the electrical component unit 40 of the air-conditioning apparatus outdoor unit 100 according to the embodiment. FIG. 16 is a perspective view showing, as seen from below, the state in which the radiating portion protecting component 230 and the partition wall portion protecting component 240 are assembled to the control board supporting component 210 of the electrical component unit 40 of the air-conditioning apparatus outdoor unit 100 according to the embodiment. FIG. 17 is a perspective view showing, as seen from above, a method for assembling the radiating portion protecting component 230 and the partition wall portion protecting component 240 to the control board supporting component 210 of the electrical component unit 40 of the air-conditioning apparatus outdoor unit 100 according to the embodiment. FIG. 18 is a perspective view showing, as seen from below, the method for assembling the radiating portion protecting component 230 and the partition wall portion protecting component 240 to the control board supporting component 210 of the electrical component unit 40 of the air-conditioning apparatus outdoor unit 100 according to the embodiment.

As shown in FIGS. 15 to 18, the radiating portion protecting component 230 and the partition wall portion protecting component 240 are assembled together in such a manner as to cover one surface of the control board supporting component 210 (i.e. a surface of the control board supporting component 210 that faces the mounting surface of the control board 50). Specifically, the first claw portions 219a of the control board supporting component 210 are fitted into the first openings 232a of the radiating portion protecting component 230 in a state in which the slit 231a of the radiating portion protecting component 230 and the slit 217a of the control board supporting component 210 are aligned with each other. By thus fitting the first claw portions 219a of the control board supporting component 210 into the first openings 232a of the radiating portion protecting component 230, movements of the radiating portion protecting component 230 in an up-down direction are regulated. Further, the second claw portions 219b of the control board supporting component 210 are fitted into the second openings 242a of the partition wall portion protecting component 240 in a state in which the protrusion portion 216 of the control board supporting component 210 and the hole 246 of the partition wall portion protecting component 240 are aligned with each other. By thus fitting the second claw portions 219b of the control board supporting component 210 into the second openings 242a of the partition wall portion protecting component 240, movements of the radiating portion protecting component 230 in an up-down direction are regulated.

The foregoing configuration makes it possible to provide a highly reliable air-conditioning apparatus outdoor unit 100 having an electrical component unit 40 that is simple in configuration, that is inexpensive as has conventionally been the case, and that does not need to be mechanically fastened by screws.

As noted above, an air-conditioning apparatus outdoor unit 100 according to an embodiment includes a casing 1 constituting an outer shell, a separator 7 configured to partition an interior portion of the casing 1 into an air-sending device room 2 in which an air-sending fan 21 is provided and a machine room 3 in which a compressor 30 is provided, and an electrical component unit 40 fixed to an upper part of the separator 7. The electrical component unit 40 includes a control board 50 including a plurality of electrical components 51 and a radiating component 52, the plurality of electrical components 51 being placed on a mounting surface, the radiating component 52 having a plate-shaped portion 52a and a plurality of fins 52b, the plate-shaped portion 52a being attached to a subset of electrical components 51 of the plurality of electrical components 51 and covering the subset of electrical components 51, the plurality of fins 52b extending from the plate-shaped portion 52a in a direction away from the mounting surface, a control board supporting component 210 attached to the control board 50 and supporting a peripheral edge portion of the control board 50, and a radiating portion protecting component 230 and a partition wall portion protecting component 240 both made of metal, attached to the control board supporting component 210 from a side of the mounting surface of the control board 50, and covering the control board supporting component 210. The control board supporting component 210 includes a slit peripheral edge portion 217 provided at a peripheral edge of a slit 217a through which the plurality of fins 52b are passed and covering the plate-shaped portion 52a of the radiating component 52, a partition wall portion 215 extending in a direction that is same as the direction in which the plurality of fins 52b extend and partitioning the interior portion of the casing 1 into the air-sending device room 2 and the machine room 3 together with the separator 7, and a side wall portion 212 provided with a pair of first claw portions 219a and a pair of second claw portions 219b and surrounding the peripheral edge portion of the control board 50. The radiating portion protecting component 230 includes a first protecting portion 231 provided at a peripheral edge of a slit 231a through which the plurality of fins 52b are passed and covering one surface of the slit peripheral edge portion 217, a first side wall portion 232 provided with a pair of first openings 232a into which the pair of first claw portions 219a are fitted, and a protruding portion 233 provided at one end portion of the first protecting portion 231 that is close to the partition wall portion 215 and extending in a direction that is same as the direction in which the plurality of fins 52b extend. The partition wall portion protecting component 240 includes a second protecting portion 241 extending in a direction that is same as the direction in which the plurality of fins 52b extend, covering one surface of the partition wall portion 215, and provided with a pair of insertion portions 243 into which corner portions of the protruding portion 233 of the radiating portion protecting component 230 are inserted and a second side wall portion 242 provided with a pair of second openings 242a into which the pair of second claw portions 219b are fitted.

The air-conditioning apparatus outdoor unit 100 according to the embodiment is configured such that the radiating portion protecting component 230 and the partition wall portion protecting component 240 are assembled together by inserting the protruding portion 233 of the radiating portion protecting component 230 into the insertion portions 243 of the partition wall portion protecting component 240. Further, the radiating portion protecting component 230 and the partition wall portion protecting component 240 are assembled to the control board supporting component 210 by fitting the first claw portions 219a of the control board supporting component 210 into the first openings 232a of the radiating portion protecting component 230 and fitting the second claw portions 219b of the control board supporting component 210 into the second openings 242a of the partition wall portion protecting component 240. That is, the air-conditioning apparatus outdoor unit according to the embodiment is structured such that the radiating portion protecting component 230 and the partition wall portion protecting component 240, which are made of metal, do not need to be mechanically fastened by screws to be assembled to the control board supporting component 210 of the electrical component unit 40, thus making it possible to reduce manufacturing cost of the electrical component unit 40.

Claims

1. An air-conditioning apparatus outdoor unit comprising:

a casing constituting an outer shell;

a separator configured to partition an interior portion of the casing into an air-sending device room in which an air-sending fan is provided and a machine room in which a compressor is provided; and

an electrical component unit fixed to an upper part of the separator,

wherein

the electrical component unit includes a control board including a plurality of electrical components and a radiating component, the plurality of electrical components being placed on a mounting surface, the radiating component having a plate-shaped portion and a plurality of fins, the plate-shaped portion being attached to a subset of electrical components of the plurality of electrical components and covering the subset of electrical components, the plurality of fins extending from the plate-shaped portion in a direction away from the mounting surface, a control board supporting component made of resin attached to the control board and supporting a peripheral edge portion of the control board, and a radiating portion protecting component and a partition wall portion protecting component both made of metal, attached to the control board supporting component from a side of the mounting surface of the control board, and being covered by the control board supporting component,

the control board supporting component includes a slit peripheral edge portion provided at a peripheral edge of a slit through which the plurality of fins are passed and covering the plate-shaped portion of the radiating component, a partition wall portion extending in a direction that is same as the direction in which the plurality of fins extend and partitioning the interior portion of the casing into the air-sending device room and the machine room together with the separator, and a side wall portion provided with a pair of first claw portions and a pair of second claw portions and surrounding the peripheral edge portion of the control board,

the radiating portion protecting component includes a first protecting portion provided at a peripheral edge of a slit through which the plurality of fins are passed and covering one surface of the slit peripheral edge portion, a first side wall portion provided with a pair of first openings into which the pair of first claw portions are fitted, and a protruding portion provided at one end portion of the first protecting portion that is close to the partition wall portion and extending in a direction that is same as the direction in which the plurality of fins extend, and

the partition wall portion protecting component includes a second protecting portion extending in a direction that is same as the direction in which the plurality of fins extend, covering one surface of the partition wall portion, and provided with a pair of insertion portions into which corner portions of the protruding portion of the radiating portion protecting component are inserted, and a second side wall portion provided with a pair of second openings into which the pair of second claw portions are fitted.

2. The air-conditioning apparatus outdoor unit of claim 1, wherein

the pair of first claw portions are provided in such a position as to hold the slit peripheral edge portion and protrude toward the slit peripheral edge portion, and

the pair of second claw portions are provided in such a position as to hold the partition wall portion and protrude toward the partition wall portion.

3. The air-conditioning apparatus outdoor unit of claim 1, wherein

the control board supporting component includes a protrusion portion provided on a lower surface of the partition wall portion and protruding in a direction that is same as the direction in which the plurality of fins extend, and

the partition wall portion protecting component includes a hole, provided in a lower surface of the second protecting portion, into which the protrusion portion is inserted.

4. The air-conditioning apparatus outdoor unit of claim 1,

wherein

the pair of insertion portions of the partition wall portion protecting component are each constituted by a projecting portion provided by a part of the second protecting portion protruding toward one surface and a slit portion formed by notching an upper part and an inner side part of the projecting portion, and the protruding portion of the radiating portion protecting component is inserted through the slit portions of the pair of insertion portions of the partition wall portion protecting component and supported by the projecting portions of the pair of insertion portions of the partition wall portion protecting component.

5. The air-conditioning apparatus outdoor unit of claim 2, wherein

the control board supporting component includes a protrusion portion provided on a lower surface of the partition wall portion and protruding in a direction that is same as the direction in which the plurality of fins extend, and

the partition wall portion protecting component includes a hole, provided in a lower surface of the second protecting portion, into which the protrusion portion is inserted.

6. The air-conditioning apparatus outdoor unit of claim 2, wherein

the pair of insertion portions of the partition wall portion protecting component are each constituted by a projecting portion provided by a part of the second protecting portion protruding toward one surface and a slit portion formed by notching an upper part and an inner side part of the projecting portion, and

the protruding portion of the radiating portion protecting component is inserted through the slit portions of the pair of insertion portions of the partition wall portion protecting component and supported by the projecting portions of the pair of insertion portions of the partition wall portion protecting component.

7. The air-conditioning apparatus outdoor unit of claim 3, wherein

the pair of insertion portions of the partition wall portion protecting component are each constituted by a projecting portion provided by a part of the second protecting portion protruding toward one surface and a slit portion formed by notching an upper part and an inner side part of the projecting portion, and

the protruding portion of the radiating portion protecting component is inserted through the slit portions of the pair of insertion portions of the partition wall portion protecting component and supported by the projecting portions of the pair of insertion portions of the partition wall portion protecting component.

8. The air-conditioning apparatus outdoor unit of claim 5, wherein

the pair of insertion portions of the partition wall portion protecting component are each constituted by a projecting portion provided by a part of the second protecting portion protruding toward one surface and a slit portion formed by notching an upper part and an inner side part of the projecting portion, and

the protruding portion of the radiating portion protecting component is inserted through the slit portions of the pair of insertion portions of the partition wall portion protecting component and supported by the projecting portions of the pair of insertion portions of the partition wall portion protecting component.