WO2024057394A1

WO2024057394A1 - Outdoor unit of air conditioner

Info

Publication number: WO2024057394A1
Application number: PCT/JP2022/034190
Authority: WO
Inventors: 貴大渡邉; 寛之陣内; 智也簗瀬
Original assignee: 三菱電機株式会社
Priority date: 2022-09-13
Filing date: 2022-09-13
Publication date: 2024-03-21

Abstract

Provided is an outdoor unit of an air conditioner. The outdoor unit comprises: a housing which forms an outer shell; a separator which partitions the inside of the housing into a blower room in which a blow fan is provided and a machine room in which a compressor is provided; and an electrical component unit which is fixed to an upper portion of the separator. The electrical component unit includes: a control board provided with a plurality of electronic components arranged on a mounting surface, a plate shaped portion which is attached to some of the plurality of electronic components and which covers said some of the plurality of electronic components, and a heat release member including a large number of fins which extend from the plate shaped portion toward a direction away from the mounting surface; a control board support member which is attached to the control board and which supports a peripheral edge portion of the control board; and a heat release portion protection member and a partition wall portion protection member, which are made of metal, are attached to the control board support member from the side of the mounting surface of the control board and cover the control board support member. The control board support member includes: a slit peripheral edge portion which is provided at a peripheral edge of a slit through which the large number of fins pass and which covers the plate shaped portion of the heat release member; a partition wall portion which extends toward the same direction as that of the large number of fins and which partitions, together with the separator, the inside of the housing into the blower room and the machine room; and a side wall portion which is provided with a pair of first claw portions and a pair of second claw portions and which surrounds the peripheral edge portion of the control board. The heat release portion protection member includes: a first protection portion which is provided at the peripheral edge of the slit through which the large number of fins pass and which covers one surface of the slit peripheral edge portion; a first side wall portion to which a pair of first opening portions are provided, the pair of first claw portions being fitted to the pair of first opening portions; and a protruding portion which is provided at an end portion of the first protection portion on a side of the partition wall portion and which extends toward the same direction as that of the large number of fins. The partition wall portion protection member includes: a second protection portion which extends toward the same direction as that of the large number of fins to cover one surface of the partition wall portion and which is provided with a pair of insertion portions into which corner portions of the protruding portion of the heat release portion protection member are inserted; and a second side wall portion to which a pair of second opening portions are provided, the pair of second claw portions being fitted to the pair of second opening portions.

Description

Air conditioner outdoor unit

The present disclosure relates to an outdoor unit of an air conditioner equipped with an electrical component unit.

A conventional outdoor unit of an air conditioner has been disclosed that includes an electrical component unit inside a casing, the outside of which is surrounded by a sheet metal (for example, see Patent Document 1). The electrical component unit of Patent Document 1 includes a storage box made of sheet metal that houses a board on which electronic components are mounted, a lid also made of sheet metal, and a frame made of resin disposed between the storage box and the lid. We are prepared. In addition, since the electronic component mounting surface of the board has an uneven shape due to the electronic components and heat dissipation members, etc., the storage box placed on the side of the electronic component mounting surface of the board is not suitable for single component configurations. Since material removal is difficult due to the size, it is composed of a plurality of parts (a first storage box and a second storage box). The first storage box and the second storage box have different heights, and by assembling them to the frame, a space with different heights is formed inside the storage box. The mounting surface side of the component can be placed.

Japanese Patent Application Publication No. 2011-163673

However, in the electrical component unit described in Patent Document 1, mechanical fastening using screws is required when assembling the first storage box and the second storage box to the frame, which increases manufacturing costs. There was a problem.

The present disclosure has been made to solve the above-mentioned problems, and aims to provide an outdoor unit for an air conditioner that can reduce manufacturing costs of electrical component units.

An outdoor unit of an air conditioner according to the present disclosure includes a casing forming an outer shell, a separator that partitions the inside of the casing into a blower room in which a blower fan is provided and a machine room in which a compressor is provided. an electrical component unit fixed to the upper part of the separator, the electrical component unit being attached to a plurality of electronic components arranged on a mounting surface, and a part of the electronic components among the plurality of electronic components; a control board including a plate-like part that covers some electronic components; and a heat dissipation member having a large number of fins extending from the plate-like part in a direction away from the mounting surface; a control board support member that supports a peripheral portion of a control board; a metal heat dissipation part protection member and a partition wall that are attached to the control board support member from the mounting surface side of the control board and cover the control board support member; a portion protection member, the control board support member is provided at a periphery of a slit passing through the plurality of fins, and the slit peripheral portion covering the plate-shaped portion of the heat dissipation member is the same as the plurality of fins. a partition wall extending in the direction of the separator and partitioning the interior of the housing into the blower room and the machine room; a pair of first claws; and a pair of second claws; a side wall portion surrounding a peripheral edge of the fins, and the heat dissipating portion protection member is provided at a peripheral edge of a slit that passes through the plurality of fins, and a first protective portion that covers one side of the peripheral edge of the slit; a first side wall portion provided with a pair of first openings into which the first claw portions are fitted; and a first side wall portion provided at an end portion of the first protection portion on the side of the partition wall portion, which is identical to the plurality of fins. a protrusion extending in a direction, the partition wall protection member extending in the same direction as the plurality of fins to cover one surface of the partition wall, and a corner of the protrusion of the heat dissipation protection member extending in the same direction as the plurality of fins. a second protection part provided with a pair of insertion parts into which the second claw parts are inserted; and a second side wall part provided with a pair of second opening parts into which the pair of second claw parts are fitted. It is.

According to the outdoor unit of an air conditioner according to the present disclosure, when assembling the metal heat dissipation part protection member and the partition wall part protection member to the control board support member of the electrical component unit, mechanical Since the structure does not require fastening, the manufacturing cost of the electrical component unit can be reduced.

FIG. 2 is a perspective view of an outdoor unit of an air conditioner according to an embodiment. FIG. 1 is an exploded perspective view of an outdoor unit of an air conditioner according to an embodiment. FIG. 2 is a perspective view of the electrical component unit of the outdoor unit of the air conditioner according to the embodiment, viewed from above. FIG. 2 is a perspective view of the electrical component unit of the outdoor unit of the air conditioner according to the embodiment, viewed from below. FIG. 2 is an exploded perspective view of an electrical component unit of an outdoor unit of an air conditioner according to an embodiment. FIG. 2 is a perspective view of the control board support member of the electric component unit of the outdoor unit of the air conditioner according to the embodiment, seen from the left side and from below. FIG. 2 is a perspective view of the control board support member of the electric component unit of the outdoor unit of the air conditioner according to the embodiment, viewed from the right side and from below. FIG. 2 is a perspective view of a heat dissipation section protection member of an electrical component unit of an outdoor unit of an air conditioner according to an embodiment, viewed from above. FIG. 2 is a perspective view of the partition wall protection member of the electric component unit of the outdoor unit of the air conditioner according to the embodiment, viewed from below. FIG. 3 is a perspective view of the partition wall protection member of the electric component unit of the outdoor unit of the air conditioner according to the embodiment, viewed from above. 11 is an enlarged view of a main part of the partition wall protection member shown in FIG. 10. FIG. FIG. 2 is a perspective view showing a state in which a heat radiation part protection member and a partition wall part protection member of the electrical component unit of the outdoor unit of the air conditioner according to the embodiment are assembled. FIG. 2 is a first perspective view showing a method of assembling the heat radiation part protection member and the partition wall part protection member of the electrical component unit of the outdoor unit of the air conditioner according to the embodiment. FIG. 7 is a second perspective view showing a method of assembling the heat radiation part protection member and the partition wall part protection member of the electrical component unit of the outdoor unit of the air conditioner according to the embodiment. FIG. 2 is a perspective view from above of a state in which a heat dissipation section protection member and a partition wall section protection member are assembled to a control board support member of an electrical component unit of an outdoor unit of an air conditioner according to an embodiment. FIG. 2 is a perspective view from below of a state in which a heat dissipation section protection member and a partition wall section protection member are assembled to a control board support member of an electric component unit of an outdoor unit of an air conditioner according to an embodiment. It is a perspective view seen from above showing a method of assembling a heat dissipation part protection member and a partition wall part protection member to a control board support member of an electric component unit of an outdoor unit of an air conditioner according to an embodiment. It is a perspective view seen from below showing a method of assembling a heat dissipation part protection member and a partition wall part protection member to a control board support member of an electric component unit of an outdoor unit of an air conditioner according to an embodiment.

Hereinafter, an outdoor unit of an air conditioner according to an embodiment will be described based on the drawings. Note that the present disclosure is not limited to the embodiments described below. Further, in the following drawings, the size relationship of each component may differ from the actual one. In addition, in the following explanation, terms indicating directions (for example, "upper", "lower", "right", "left", "front", "rear", etc.) are used as appropriate to facilitate understanding. This is for illustrative purposes; these terms are not intended to limit this disclosure. Unless otherwise specified, terms indicating these directions mean directions when the outdoor unit of the air conditioner is viewed from the front. Furthermore, in each figure, the same reference numerals are the same or equivalent, and this is common throughout the entire specification.

Embodiment.
FIG. 1 is a perspective view of an outdoor unit 100 of an air conditioner according to an embodiment. FIG. 2 is an exploded perspective view of the outdoor unit 100 of the air conditioner according to the embodiment.

As shown in FIGS. 1 and 2, an outdoor unit 100 of an air conditioner according to the embodiment includes a casing 1 forming an outer shell. The housing 1 includes a front side panel 10, a right side panel 11, a bottom panel 12, and a top panel 13. The front side panel 10 constitutes the front and left side surfaces of the casing 1, and is constituted by, for example, an L-shaped member when viewed from above. A circular air outlet is formed in the front side panel 10, and a fan guard 17 is attached to cover the air outlet. The right side panel 11 constitutes the right side of the housing 1, and has an opening 11a formed therein. A protective cover 18 is attached to the outer surface of the right side panel 11 to cover the opening 11a. The bottom panel 12 constitutes the bottom surface of the housing 1 . Attached to the lower surface of the bottom panel 12 are legs 15 that are fixed to the installation location. The top panel 13 constitutes the top surface of the housing 1.

The inside of the housing 1 is divided into a blower room 2 and a machine room 3 by a separator 7. The blower room 2 is provided with a heat exchanger 20, a blower fan 21, a motor 22, and a motor mount 23. 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 viewed from above, and is provided from the back surface to the left side surface of the housing 1 . The heat exchanger 20 is a fin-and-tube type that includes a plurality of fins arranged in parallel and a heat transfer tube passing through the plurality of fins, and is placed on the top surface of the bottom panel 12 so that the heat transfer tube is horizontal. has been done. The motor mount 23 is a member that holds the motor 22 to which the blower fan 21 is attached, and is provided in front of the heat exchanger 20. The outdoor unit 100 is configured such that when the blower fan 21 operates, air that has passed through the heat exchanger 20 is introduced into the interior, passes through the blower fan 21, and is discharged to the front of the outdoor unit 100. Thereby, the outdoor unit 100 has a configuration in which, for example, during cooling operation, the refrigerant is cooled by air in the heat exchanger 20, and the air that has passed through the heat exchanger 20 is heated by exchanging heat with the refrigerant.

The machine room 3 is provided with a compressor 30, refrigerant piping 31, and an electrical component unit 40. The compressor 30 is placed on the top surface of the bottom panel 12 and compresses refrigerant sent from an indoor unit (not shown). The refrigerant compressed by the compressor 30 is sent to the heat exchanger 20 through a refrigerant pipe 31. The electrical component unit 40 includes a circuit section 200 and a terminal section 300. Inside the casing 1, the circuit section 200 is disposed across the blower room 2 and the machine room 3, and is attached to the upper part of the separator 7. The terminal section 300 is arranged in the machine room 3 and attached to the end of the circuit section 200 on the right side panel 11 side.

FIG. 3 is a perspective view of the electrical component unit 40 of the outdoor unit 100 of the air conditioner according to the embodiment, viewed from above. FIG. 4 is a perspective view of the electrical component unit 40 of the outdoor unit 100 of the air conditioner according to the embodiment, viewed from below. FIG. 5 is an exploded perspective view of the electrical component unit 40 of the outdoor unit 100 of the air conditioner according to the embodiment.

As shown in FIGS. 3 to 5, the terminal section 300 is configured to be detachable from the circuit section 200, and includes a terminal block 61 and a terminal block support member 62 that supports the terminal block 61. A plug of wiring connected to an external commercial power source is connected to the terminal block 61 via the protective cover 18 . As shown in FIG. 2, the plug connection portion of the terminal block 61 is attached to the terminal block support member 62 so as to face the right side panel 11. The mounting portion of the terminal block 61 is arranged to extend obliquely downward from the end of the circuit section 200 on the right side panel 11 side.

As shown in FIGS. 3 to 5, the circuit section 200 includes a control board 50 to which a plurality of electronic components 51 such as capacitors and resistors are attached by soldering. The control board 50 is provided with an inverter circuit that controls the frequency of the alternating current that drives the compressor 30 and the motor 22 of the blower fan 21 . An inverter circuit is an electronic circuit that generates frequency-controlled alternating current from direct current. Further, the control board 50 can be provided with a converter circuit that converts an alternating current flowing from an external power source via the terminal block 61 into a direct current. Note that the converter circuit may be integrally mounted on the same control board 50 as the inverter circuit, or may be mounted on a separate control board from the inverter circuit.

A plurality of electronic components 51 are attached to the mounting surface of the control board 50. Furthermore, a plurality of electronic components 51 are soldered to the back surface of the control board 50 opposite to the mounting surface. That is, the mounting surface of the control board 50 is the surface to which the plurality of electronic components 51 are attached, and the back surface of the control board 50 is the surface to which the plurality of electronic components 51 are soldered.

Among the plurality of electronic components 51 attached to the mounting surface of the control board 50, heat dissipation members 52 are attached to some of the electronic components 51 that generate heat, such as transistors. The heat dissipation member 52 includes a plate-like portion 52a that covers some of the electronic components 51, and a large number of fins 52b extending from the plate-like portion 52a in a direction away from the control board 50. By providing a large number of fins 52b on the heat dissipation member 52, the heat transfer area with the outside air can be increased, so that the heat generated in some of the electronic components 51 can be efficiently dissipated. Furthermore, by arranging the heat dissipating member 52 above the separator 7 so as to straddle the side of the blower room 2, heat can be efficiently dissipated to the air sent from the blower fan 21.

The circuit section 200 includes a metal control board protection member 220 on the back side of the control board 50. Further, the circuit section 200 includes a control board support member 210 made of resin, a heat dissipation section protection member 230 made of metal, and a partition wall section protection member 240 made of metal on the mounting surface side of the control board 50. There is.

The control board protection member 220 is attached to the control board support member 210 and covers the back surface of the control board 50. The control board protection member 220 protects the back surface of the control board 50 from intrusion of water or dust. Further, the control board support member 210 is attached to the control board 50 and supports the peripheral portion of the control board 50. The control board support member 210 protects the control board 50 from, for example, external impact.

FIG. 6 is a perspective view of the control board support member 210 of the electrical component unit 40 of the outdoor unit 100 of the air conditioner according to the embodiment, viewed from the left side and from below. FIG. 7 is a perspective view of the control board support member 210 of the electrical component unit 40 of the outdoor unit 100 of the air conditioner according to the embodiment, viewed from the right side and from below.

As shown in FIGS. 6 and 7, the control board support member 210 includes a rectangular main surface portion 211 that is open at the center when the housing 1 is viewed from above. Additionally, side wall portions 212 are provided on the four sides of the control board support member 210, extending in the opposite direction to the fins 52b of the heat dissipation member 52 and surrounding the peripheral edge of the control board 50. This side wall portion 212 is composed of an outer wall portion 213 provided on the outside and an inner wall portion 214 provided on the inside, and a groove 212a is formed between the outer wall portion 213 and the inner wall portion 214. (See FIG. 15, which will be described later). Then, the side wall portion 221 (see FIG. 5) of the control board protection member 220 is inserted into the groove 212a of the control board support member 210. By doing so, the claws (not shown) provided on the outer wall 213 or the inner wall 214 fit into the openings (not shown) formed in the side wall 221, and the control board protection member 220 is fitted into the control board support member 210. Further, the control board support member 210 has a partition wall portion 215 extending in the same direction as the fins 52b of the heat dissipation member 52. The tip of the partition wall 215 is attached to the upper part of the separator 7, and the partition wall 215 functions as a wall that partitions the blower room 2 and the machine room 3. A protrusion 216 that protrudes in the same direction as the fins 52b of the heat radiating member 52 is provided on the lower surface of the partition wall 215 extending horizontally from the tip thereof. Furthermore, a rectangular slit 217a is formed on the side of the blower room 2 rather than the partition wall portion 215, and the slit 217a is formed in a rectangular shape for passing the fin 52b through, so as not to interfere with heat release from the fin 52b. A slit peripheral portion 217 is provided at the peripheral edge of the slit 217a. This slit peripheral portion 217 covers the plate-like portion 52a of the heat dissipating member 52 and prevents water or dust from entering the plate-like portion 52a. Further, the main surface portion 211 on the side of the machine room 3 is provided with a support member attachment portion 218 to which the terminal block support member 62 can be attached. Furthermore, a claw portion 219 that protrudes inward is provided at a lower portion of the outer wall portion 213 of the side wall portion 212 . The claw portions 219 are provided at positions that sandwich the slit peripheral edge portion 217 from the front and back directions, and are provided at positions that sandwich the pair of first claw portions 219a that protrude toward the slit peripheral edge portion 217 and the partition wall portion 215 from the front and back directions. , and a pair of second claw portions 219b protruding toward the partition wall portion 215 side.

FIG. 8 is a perspective view of the heat radiation section protection member 230 of the electrical component unit 40 of the outdoor unit 100 of the air conditioner according to the embodiment, viewed from above. FIG. 9 is a perspective view of the partition wall protection member 240 of the electrical component unit 40 of the outdoor unit 100 of the air conditioner according to the embodiment, viewed from below. FIG. 10 is a perspective view of the partition wall protection member 240 of the electrical component unit 40 of the outdoor unit 100 of the air conditioner according to the embodiment, viewed from above. FIG. 11 is an enlarged view of essential parts of the partition wall protection member 240 shown in FIG. 10.

As shown in FIG. 8, the heat radiation section protection member 230 has a rectangular shape when the housing 1 is viewed from above. A rectangular slit 231a for passing the fin 52b through is formed in the heat radiation portion protection member 230, and is configured so as not to interfere with heat radiation from the fin 52b. A first protection portion 231 that covers one surface of the slit peripheral portion 217 (the surface on the mounting surface side of the control board 50) is provided at the peripheral edge of the slit 231a. Further, first side wall portions 232 extending in the opposite direction to the fins 52b of the heat dissipation member 52 are provided at three end portions of the first protection portion 231 other than the partition wall portion 215 side. Rectangular first openings 232a are provided in the front and rear first side walls 232, respectively. Furthermore, a rectangular protrusion 233 extending in the same direction as the fins 52b of the heat radiating member 52 is provided at the end of the first protection portion 231 on the side of the machine room 3.

As shown in FIG. 10, the partition wall protection member 240 has an L-shape when the housing 1 is viewed from above. The partition wall protection member 240 has a second protection portion 241 that extends in the same direction as the fins 52b of the heat dissipation member 52 and covers one surface of the partition wall portion 215 (the surface on the side of the blower room 2). As shown in FIGS. 9 to 11, a pair of insertion portions 243 are provided on the front and rear sides of the second protection portion 241. As shown in FIGS. The insertion part 243 is provided with a part of the second protection part 241 protruding from one side (the surface on the side of the machine room 3), and has a convex part 244 having a gap into which the plate thickness dimension of the protrusion part 233 is inserted. and a slit portion 245 in which the upper and inner side portions of the convex portion 244 are cut out. Note that the convex portion 244 has a support structure that serves as a stopper in the downward direction and the outer side direction. Furthermore, second side wall portions 242 extending toward the machine room 3 are provided at the ends of the second protection portions 241 on the front and rear sides. Rectangular second openings 242a are provided in the front and rear second sidewalls 242, respectively. Further, a hole 246 into which the protrusion 233 is inserted is provided in the lower surface extending horizontally from the tip of the second protection portion 241 .

FIG. 12 is a perspective view showing a state in which the heat radiation section protection member 230 and the partition wall section protection member 240 of the electrical component unit 40 of the outdoor unit 100 of the air conditioner according to the embodiment are assembled. FIG. 13 is a first perspective view showing a method of assembling the heat radiation part protection member 230 and the partition wall part protection member 240 of the electrical component unit 40 of the outdoor unit 100 of the air conditioner according to the embodiment. FIG. 14 is a second perspective view showing a method of assembling the heat radiation part protection member 230 and the partition wall part protection member 240 of the electrical component unit 40 of the outdoor unit 100 of the air conditioner according to the embodiment.

As shown in FIGS. 13 and 14, the two corners of the protrusion 233 of the heat dissipation section protection member 230 are inserted into the pair of insertion sections 243 through the slit section 245 formed at the upper part of the insertion section 243 of the partition wall section protection member 240. Insert each into. By doing so, the two corners of the protruding part 233 of the heat dissipation part protection member 230 are supported by the convex parts 244 of the pair of insertion parts 243, and the heat dissipation part protection member 230 and the partition wall protection member 240 are assembled. It will be done. At this time, the protrusion 233 of the heat dissipation section protection member 230 is guided by the convex section 244 of the insertion section 243 of the heat dissipation section protection member 230, thereby facilitating insertion. Furthermore, due to the shape of the convex portion 244 of the insertion portion 243 of the heat dissipation portion protection member 230, the two corners of the protrusion portion 233 of the heat dissipation portion protection member 230 are inserted into the pair of insertion portions 243 of the partition wall portion protection member 240. This restricts the movement of the heat dissipation section protection member 230 in the downward direction, the front-rear direction, and the left-right direction. As shown in FIG. 12, when the heat radiation part protection member 230 and the partition wall protection member 240 are assembled, the first protection part 231 of the heat radiation part protection member 230 and the second protection part of the partition wall protection member 240 are 241 is arranged in the vertical direction.

FIG. 15 shows a state in which the heat dissipation section protection member 230 and the partition wall section protection member 240 are assembled to the control board support member 210 of the electrical component unit 40 of the outdoor unit 100 of the air conditioner according to the embodiment, seen from above. FIG. FIG. 16 shows a state in which the heat dissipation section protection member 230 and the partition wall section protection member 240 are assembled to the control board support member 210 of the electrical component unit 40 of the outdoor unit 100 of the air conditioner according to the embodiment, seen from below. FIG. FIG. 17 is a perspective view from above showing a method for assembling the heat dissipation section protection member 230 and the partition wall section protection member 240 to the control board support member 210 of the electrical component unit 40 of the outdoor unit 100 of the air conditioner according to the embodiment. It is a diagram. FIG. 18 is a perspective view from below showing a method of assembling the heat dissipation section protection member 230 and the partition wall section protection member 240 to the control board support member 210 of the electrical component unit 40 of the outdoor unit 100 of the air conditioner according to the embodiment. It is a diagram.

As shown in FIGS. 15 to 18, the heat dissipation section protection member 230 and the partition wall section protection member 240 are assembled to cover one surface of the control board support member 210 (the surface on the mounting surface side of the control board 50). It will be done. Specifically, with the slit 231a of the control board support member 210 and the slit 217a of the control board support member 210 aligned, the first opening 232a of the control board support member 210 is inserted into the first opening 232a of the heat radiation section protection member 230. One claw portion 219a is fitted. In this way, by fitting the first claw portion 219a of the control board support member 210 into the first opening 232a of the heat dissipation section protection member 230, vertical movement of the heat dissipation section protection member 230 is restricted. Further, with the protrusion 216 of the control board support member 210 and the hole 246 of the partition wall protection member 240 aligned, the control board support member 210 is inserted into the second opening 242a of the partition wall protection member 240. The second claw portion 219b is fitted. In this way, by fitting the second claw portion 219b of the control board support member 210 into the second opening 242a of the partition wall portion protection member 240, vertical movement of the heat dissipation portion protection member 230 is restricted.

With the above configuration, it is possible to obtain a highly reliable outdoor unit 100 of an air conditioner that has a simple configuration, is inexpensive as conventional ones, and has an electrical component unit 40 that does not require mechanical fastening with screws. .

As described above, the outdoor unit 100 of the air conditioner according to the embodiment includes a housing 1 that forms an outer shell, a separator 7 that divides the interior of the housing 1 into a blower chamber 2 in which a blower fan 21 is provided and a machine chamber 3 in which a compressor 30 is provided, and an electrical equipment unit 40 fixed to the upper part of the separator 7. The electrical equipment unit 40 includes a plurality of electronic components 51 arranged on a mounting surface, a plate-shaped portion 52a that is attached to some of the plurality of electronic components 51 and covers some of the electronic components 51, and a plate-shaped portion 52a extending from the plate-shaped portion 52a in a direction away from the mounting surface. a control board support member 210 attached to the control board 50 and supporting a peripheral portion of the control board 50; and a metal heat dissipation section protection member 230 and a partition wall section protection member 240 attached to the control board support member 210 from the mounting surface side of the control board 50 and covering the control board support member 210. The control board support member 210 is provided on the periphery of a slit 217a through which the numerous fins 52b pass, and covers the plate-like portion 52a of the heat dissipation member 52. The heat dissipation section protection member 230 includes a peripheral portion 217, a partition wall portion 215 extending in the same direction as the numerous fins 52b and dividing the inside of the housing 1 into a fan chamber 2 and a machine chamber 3 together with the separator 7, and a side wall portion 212 having a pair of first claw portions 219a and a pair of second claw portions 219b and surrounding the peripheral portion of the control board 50. The heat dissipation section protection member 230 is provided on the peripheral portion of a slit 231a through which the numerous fins 52b pass, and includes a first protection portion 231 covering one side of the slit peripheral portion 217 and a pair of first openings 232a into which the pair of first claw portions 219a are fitted. and a protrusion 233 provided at the end of the first protection part 231 on the partition wall part 215 side and extending in the same direction as the numerous fins 52b. The partition wall part protection member 240 extends in the same direction as the numerous fins 52b and covers one side of the partition wall part 215, and includes a second protection part 241 provided with a pair of insertion parts 243 into which the corners of the protrusion 233 of the heat dissipation part protection member 230 are inserted, and a second side wall part 242 provided with a pair of second openings 242a into which the pair of second claw parts 219b are fitted.

According to the outdoor unit 100 of the air conditioner according to the embodiment, by inserting the protrusion 233 of the heat radiation part protection member 230 into the insertion part 243 of the partition wall protection member 240, the heat radiation part protection member 230 and the partition wall can be connected. The section protection member 240 is assembled. Further, the first claw portion 219a of the control board support member 210 is fitted into the first opening 232a of the heat dissipation part protection member 230, and the first claw part 219a of the control board support member 210 is fitted into the second opening 242a of the partition wall protection member 240. By fitting the two claws 219b, the heat radiation section protection member 230 and the partition wall protection member 240 are assembled to the control board support member 210. In other words, the structure does not require mechanical fastening using screws when assembling the metal heat dissipation section protection member 230 and partition wall section protection member 240 to the control board support member 210 of the electrical component unit 40. Therefore, the manufacturing cost of the electrical component unit 40 can be suppressed.

1 Housing, 2 Blower room, 3 Machine room, 7 Separator, 10 Front side panel, 11 Right side panel, 11a Opening, 12 Bottom panel, 13 Top panel, 15 Legs, 17 Fan guard, 18 Protective cover, 20 heat exchanger, 21 blower fan, 22 motor, 23 motor mount, 30 compressor, 31 refrigerant piping, 40 electrical component unit, 50 control board, 51 electronic component, 52 heat dissipation member, 52a plate, 52b fin, 61 terminal block, 62 terminal block support member, 100 outdoor unit, 200 circuit section, 210 control board support member, 211 main surface section, 212 side wall section, 212a groove, 213 outer wall section, 214 inner wall section, 215 partition wall section, 216 Projection portion, 217 Slit peripheral portion, 217a Slit, 218 Support member attachment portion, 219 Claw portion, 219a First claw portion, 219b Second claw portion, 220 Control board protection member, 221 Side wall portion, 230 Heat dissipation portion protection member, 231 first protection part, 231a slit, 232 first side wall part, 232a first opening part, 233 protrusion part, 240 partition wall protection member, 241 second protection part, 242 second side wall part, 242a second opening part, 243 Insertion part, 244 Convex part, 245 Slit part, 246 Hole part, 300 Terminal part.

Claims

A casing that constitutes the outer shell;
a separator that partitions the interior of the casing into a blower room in which a blower fan is provided and a machine room in which a compressor is provided;
an electrical component unit fixed to the upper part of the separator,
The electrical component unit is
a plurality of electronic components disposed on a mounting surface; a plate-shaped portion attached to some of the plurality of electronic components and covering some of the electronic components; and a plate-shaped portion arranged in a direction away from the mounting surface. a control board comprising: a heat dissipation member having a large number of fins extending from the shaped portion;
a control board support member attached to the control board and supporting a peripheral portion of the control board;
a metal heat dissipation part protection member and a partition wall part protection member that are attached to the control board support member from the mounting surface side of the control board and cover the control board support member;
The control board support member is
a slit peripheral portion provided at a peripheral edge of a slit passing through the plurality of fins and covering the plate-shaped portion of the heat dissipation member;
a partition wall extending in the same direction as the plurality of fins and partitioning the interior of the housing into the blower room and the machine room together with the separator;
a pair of first claw parts and a pair of second claw parts are provided, and a side wall part surrounding the peripheral edge of the control board;
The heat radiation part protection member is
a first protection portion provided at a periphery of a slit passing through the plurality of fins and covering one surface of the slit periphery;
a first side wall portion provided with a pair of first openings into which the pair of first claw portions are fitted;
a protrusion provided at an end of the first protection part on the partition wall side and extending in the same direction as the plurality of fins;
The partition wall protection member is
a second protection part that extends in the same direction as the plurality of fins, covers one surface of the partition wall part, and is provided with a pair of insertion parts into which corners of the protruding part of the heat dissipation part protection member are inserted;
An outdoor unit of an air conditioner, comprising: a second side wall portion provided with a pair of second openings into which the pair of second claw portions are fitted.
The pair of first claws are provided at positions sandwiching the slit peripheral edge and protrude toward the slit peripheral edge,
The outdoor unit of an air conditioner according to claim 1, wherein the pair of second claws are provided at positions sandwiching the partition wall and protrude toward the partition wall.
The control board support member is
a protrusion provided on the lower surface of the partition wall and protruding in the same direction as the plurality of fins;
The partition wall protection member is
The outdoor unit of an air conditioner according to claim 1 or 2, further comprising a hole provided on the lower surface of the second protection part, into which the protrusion is inserted.
The pair of insertion portions of the partition wall protection member are
a convex portion in which a portion of the second protection portion protrudes toward one side;
The upper part and the inner side part of the convex part are composed of a slit part cut out,
The protruding portion of the heat dissipation portion protection member is inserted through the slit portion of the pair of insertion portions of the partition wall protection member, and is supported by the convex portion of the pair of insertion portions of the partition wall protection member. The outdoor unit of an air conditioner according to any one of claims 1 to 3.