CN213841139U - Outdoor unit of refrigeration cycle device - Google Patents
Outdoor unit of refrigeration cycle device Download PDFInfo
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- CN213841139U CN213841139U CN202021341177.5U CN202021341177U CN213841139U CN 213841139 U CN213841139 U CN 213841139U CN 202021341177 U CN202021341177 U CN 202021341177U CN 213841139 U CN213841139 U CN 213841139U
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Abstract
The outdoor unit of the refrigeration cycle device of the utility model comprises a shell; a heat exchanger disposed in the casing and configured to exchange heat between air and a refrigerant flowing therein; a blower for sucking air from the outside of the casing, passing the air sucked into the casing through the heat exchanger, and blowing the air subjected to heat exchange to the outside of the casing; a compressor for compressing and discharging a refrigerant and circulating the refrigerant in the heat exchanger; a circuit board on which a plurality of power supply semiconductor elements for driving and controlling the compressor are mounted; the heat sink includes a plurality of fins extending along an air flow flowing in the case and arranged in a direction intersecting the air flow, and the plurality of power supply semiconductor elements are arranged in a row in a direction in which the plurality of fins are arranged, or are arranged in a grid pattern in a direction in which the plurality of fins are arranged more than in a direction in which the plurality of fins extend.
Description
Technical Field
The embodiment of the utility model relates to an outdoor unit of refrigeration cycle device.
Background
There is known an outdoor unit of a refrigeration cycle apparatus including: the air conditioner includes a plurality of blowers arranged side by side in the vertical direction, a plurality of blower inverter boards for driving the blowers, and an electrical component unit H for housing the blower inverter boards. The plurality of blower inverter substrates are arranged side by side in the vertical direction.
Patent document 1: japanese patent laid-open No. 2015-187506 (JP)
An outdoor unit of a refrigeration cycle device includes: a compressor for compressing refrigerant, and a compressor control circuit board for driving and controlling the compressor. A plurality of power supply semiconductor elements are mounted on the compressor control circuit board. In general, since the output of the motor for driving the compressor is larger than the output of the motor for driving the blower, the amount of heat generated by the power supply semiconductor element of the compressor control circuit board is larger than the amount of heat generated by the power supply semiconductor element of the blower control circuit board.
In addition, the conventional outdoor unit of the refrigeration cycle apparatus has room for improvement in a structure for cooling the power supply semiconductor element of the compressor control circuit board.
SUMMERY OF THE UTILITY MODEL
Therefore, an object of the present invention is to provide an outdoor unit of a refrigeration cycle apparatus, which can improve cooling efficiency of a power supply semiconductor device of a compressor control circuit board and prevent damage to the power supply semiconductor device and deterioration of electrical characteristics.
The utility model discloses an embodiment's refrigeration cycle device's off-premises station includes: a housing; a heat exchanger disposed in the casing and configured to exchange heat between air and a refrigerant flowing therein; a blower that sucks in the air from outside the casing, passes the air sucked into the casing through the heat exchanger, and blows out the heat-exchanged air to outside the casing; a compressor that compresses and discharges the refrigerant and circulates the refrigerant through the heat exchanger; a circuit board on which a plurality of power supply semiconductor elements are mounted, for driving and controlling the compressor; and a heat sink that is in thermal contact with the plurality of power supply semiconductor elements and cools the plurality of power supply semiconductor elements, the heat sink including a plurality of fins that extend along the airflow flowing in the case and are arranged in a direction intersecting the airflow, the plurality of power supply semiconductor elements being arranged in a row in a direction in which the plurality of fins are arranged, or being arranged in a grid pattern in a direction in which the plurality of fins are arranged more than in a direction in which the plurality of fins extend.
According to the outdoor unit of the refrigeration cycle apparatus of the embodiment of the present invention, the cooling efficiency of the power supply semiconductor element of the compressor control circuit board can be improved, and the damage and the deterioration of the electrical characteristics of the power supply semiconductor element can be prevented.
Drawings
Fig. 1 is a perspective view of an outdoor unit of a refrigeration cycle apparatus according to an embodiment of the present invention.
Fig. 2 is a front view of an outdoor unit of a refrigeration cycle apparatus according to an embodiment of the present invention.
Fig. 3 is a perspective view showing an electric component box and a control device housed in an outdoor unit according to an embodiment of the present invention.
Fig. 4 is a perspective view showing an electric component box and a control device housed in an outdoor unit according to an embodiment of the present invention.
Fig. 5 is a schematic view showing an arrangement relationship between a first radiator of an outdoor unit and a power supply semiconductor element according to an embodiment of the present invention.
Fig. 6 is a sectional view of a second member box of an outdoor unit according to an embodiment of the present invention.
Detailed Description
An embodiment of an outdoor unit of a refrigeration cycle apparatus according to the present invention will be described with reference to fig. 1 to 6. In the drawings, the same or corresponding components are denoted by the same reference numerals.
Fig. 1 is a perspective view of an outdoor unit of a refrigeration cycle apparatus according to an embodiment of the present invention.
Fig. 2 is a front view of an outdoor unit of a refrigeration cycle apparatus according to an embodiment of the present invention.
The refrigeration cycle apparatus includes a refrigeration cycle (not shown) having a heat-source-side heat exchanger 5, a compressor 6, a use-side heat exchanger (not shown), an expansion valve (not shown), and a refrigerant pipe (not shown) for circulating a refrigerant through these apparatuses. The refrigeration cycle may include a four-way valve (illustration omitted) for switching between a cooling operation and a heating operation of the refrigeration cycle device.
The outdoor unit 1 of the refrigeration cycle device of the present embodiment houses a heat exchanger 5 on the heat source side of the refrigeration cycle, a compressor 6, an expansion valve, a four-way valve, and a part of a refrigerant pipe.
Further, as shown in fig. 1, the outdoor unit 1 includes a casing 12 having an air inlet (not shown) and an air outlet 11; a heat exchanger 5 which is provided in the casing 12 and exchanges heat between air and a refrigerant flowing inside; a blower 13 that sucks in air from outside the casing 12, passes the air sucked into the casing 12 through the heat exchanger 5, and blows out the heat-exchanged air to outside the casing 12; a compressor 6 that compresses and discharges a refrigerant and circulates the refrigerant in the heat exchanger 5; a control device 15 that controls the operation of the refrigeration cycle device; and an electrical component box 16 that houses the control device 15.
The heat exchanger 5, the blower 13, the compressor 6, the four-way valve, and the electric component box 16 are housed in the casing 12.
The outdoor unit 1 according to the present embodiment has a plurality of, for example, 3 air outlets 11 arranged in the vertical direction in the mounted state. Further, a blower 13 is provided to each air outlet 11. The heat exchanger 5 is disposed on the suction side of the blower 13 for each blower 13. That is, the outdoor unit 1 according to the present embodiment includes: 1 casing 12 having 3 air outlet ports 11, and a blower 13 and a heat exchanger 5 corresponding to each air outlet port 11.
The housing 12 has a rectangular parallelepiped shape. The housing 12 includes: a bottom plate (not shown), a left side plate 21 covering the left side surface, a right side plate 22 covering the right side surface, a front surface plate 23 covering the front surface, a fin guard plate (not shown) provided on the back surface, and a top plate 24 covering the top surface.
In fig. 2, the heat exchanger 5, the blower 13, and the electric component box 16 in the casing 12 are partially opened to see the front panel 23.
The air outlet 11 is provided on the front surface of the casing 12, that is, on the front panel 23, among the side surfaces of the casing 12. A fan guard 26 is provided on the air outlet 11. The fan guard 26 covers the blower 13.
The side surfaces of the housing 12 are provided with air intake ports from the back surface to the left side surface of the housing 12. And a fin guard plate is arranged on the air inlet. The fin guard is a grid that protects the heat exchanger 5.
The inside of the housing 12 is divided into 2 parts in the left-right direction of the housing 12. One is a heat exchange chamber 28 that houses the blower 13 and the heat exchanger 5. The other is a machine room 29 in which the compressor 6, the expansion valve, the four-way valve, and the electric component box 16 are housed.
When the blower 13 is rotationally driven, air outside the casing 12 is sucked into the casing 12 through the air inlet of the casing 12. The air sucked into the casing 12 exchanges heat with the refrigerant flowing through the heat exchanger 5 in the heat exchanger 5. The air that has exchanged heat with the heat exchanger 5 is blown out of the casing 12 from the air outlet 11 by the blower 13.
The outdoor unit 1 may have a single-stage type in which the number of air outlets 11 is 1, or may have a multi-stage type in which the number of air outlets 11 is 2 or 4 or more.
Next, the electrical component box 16 will be described in detail.
Fig. 3 and 4 are perspective views showing an electric component box and a control device housed in an outdoor unit according to an embodiment of the present invention.
Fig. 3 is a view of the electric component box 16 viewed from the heat exchange chamber 28 side. Fig. 4 is a view of the electric component box 16 viewed from the machine room 29 side.
As shown in fig. 3 and 4, the electric component box 16 of the outdoor unit 1 of the present embodiment has approximately 2 parts in addition to fig. 2. The first part is a first component case 31 that houses a main circuit board that collectively controls the operation of the refrigeration cycle apparatus. The second part is a second component case 37 that houses a compressor control circuit board 35 that controls the operation of the compressor 6 and a blower control circuit board 36 that controls the operation of the blower 13. The first component case 31 and the second component case 37 are sheet metal work.
In fig. 4, the second component case 37 is opened to the machine chamber 29 without illustration of a cover, but the second component case 37 is actually mounted in a state where the cover closes.
The second component case 37 is a box body in the shape of a rectangular parallelepiped which is large in the height direction and the depth direction of the case 12 and flat in the width direction (left-right direction) of the case 12. The second cassette 37 includes a flat plate portion 41, and the flat plate portion 41 serves as all or a part of a wall that divides the interior of the casing 12 into 2 spaces, i.e., the heat exchange chamber 28 and the machine chamber 29.
One surface 41a of the flat plate portion 41 faces the heat exchange chamber 28. The other surface 41b of the flat plate portion 41 is a part or the whole of a wall for partitioning the machine chamber 29. The other surface 41b of the flat plate portion 41 is provided with a compressor control circuit board 35 and a blower control circuit board 36.
The compressor control circuit board 35 and the blower control circuit board 36 are arranged along the up-down direction of the second component case 37. A first blower control circuit board 45 for controlling the upper 2 blowers 13 of the casing 12 is provided on the upper portion of the flat plate portion 41. A second blower control circuit board 46 for controlling the lower 1 blower 13 of the casing 12 is provided at the lower portion of the flat plate portion 41. A compressor control circuit board 35 is provided at the center of the flat plate portion 41. Compressor control circuit board 35 is disposed between first blower control circuit board 45 and second blower control circuit board 46.
A control circuit for driving and controlling the motor of the compressor 6, for example, an inverter circuit is mounted on the compressor control circuit board 35. The inverter circuit includes a plurality of power supply semiconductor elements 51, for example, Insulated Gate Bipolar Transistors (IGBTs) and free-wheeling diodes (FWDs).
In fig. 4, a range in which the plurality of power supply semiconductor elements 51 are arranged is shown by a broken line. The range of the dotted line is configured as a Module 52 having a plurality of Power supply semiconductor elements 51, for example, an Intelligent Power Module (IPM) or a rectifier (Rrectifier).
A control circuit for driving and controlling the motor of the compressor 13, for example, an inverter circuit is mounted on the compressor control circuit board 36. The inverter circuit includes a plurality of Power supply semiconductor elements (not shown), such as an Intelligent Power Module (IPM), an Insulated Gate Bipolar Transistor (IGBT), a Free Wheeling Diode (FWD), and a rectifier (Rrectifier). Two inverter circuits are mounted on the first blower control circuit board 45 so as to correspond to the two blowers 13. On the second blower control circuit board 46, 1 inverter circuit is mounted corresponding to 1 blower 13.
The power supply semiconductor element generates heat in response to operation. Therefore, the electrical component box 16 includes a first heat sink 55 for cooling the power supply semiconductor element 51 of the compressor control circuit board 35; and a second heat sink 56 for cooling the power supply semiconductor element of the blower control circuit board 36. The first heat sink 55 and the second heat sink 56 are formed articles of aluminum alloy.
Generally, the motor of the compressor 6 consumes more electric power than the motor of the blower 13. Therefore, the amount of heat generated by the power supply semiconductor element 51 of the compressor control circuit board 35 is larger than that of the blower control circuit board 36.
Therefore, the second heat sink 56 for cooling the blower control circuit board 36 is a so-called on-board heat sink provided on the blower control circuit board 36. The power semiconductor elements of blower control circuit board 36 can be sufficiently cooled by a small heat sink on the board. The second heat sink 56 cools the power supply semiconductor elements of the blower control circuit board 36 by the air flowing from the machine room 29 into the second component case 37.
On the other hand, a first heat sink 55 for cooling the compressor control circuit board 35 is provided on one face 41a of the flat plate portion 41 of the second component case 37. The first heat sink 55 is larger than the second heat sink 56, and has the same extent of size (spread on the surface 41 a) as the compressor control circuit board 35. The first heat sink 55 and the power supply semiconductor element of the compressor control circuit board 35 can be thermally connected. That is, the first heat sink 55 and the power supply semiconductor element of the compressor control circuit board 35 may be directly contacted through an opening (not shown) provided in the flat plate portion 41 of the second component case 37, or may be thermally connected through the flat plate portion 41 with the flat plate portion 41 of the second component case 37 interposed therebetween.
The first heat sink 55 cools the power supply semiconductor element 51 of the compressor control circuit board 35 by the air flowing in the heat exchange chamber 28. The flow rate of air in the heat exchange chamber 28 provided with the blower 13 is faster than the flow rate of air in the machine chamber 29. Therefore, the first radiator 55 is more easily cooled than the second radiator 56.
Furthermore, first heat sink 55 includes a plurality of fins 61 that protrude from surface 41a of flat plate portion 41 of second component case 37 into heat exchange chamber 28. The plurality of fins 61 extend along the air flow (f) flowing inside the housing 12 (solid arrow E). The plurality of fins 61 are aligned in a direction intersecting the air flow (f) (solid arrow L). The plurality of fins 61 are arranged in a comb shape. The root of each fin 61 is connected to a plate-like base. Therefore, the first heat sink 55 can be easily extruded in the extending direction of the fins 61.
In addition, arrows indicating the air flow f are shown from upstream to downstream of the air flow.
The plurality of fins 61 have a plurality of portions having different protruding heights along the air flow f. In the air flow f, the portion having a high projection height is disposed upstream of the portion having a low projection height. That is, in the air flow f, the portion having a low projection height is disposed downstream of the portion having a high projection height. In other words, the height of the plurality of fins 61 at the upstream side portion 63 in the air flow f is higher than the height of the plurality of fins 61 at the downstream side portion 62.
The power supply semiconductor element of the compressor control circuit board 35 is thermally connected to the first heat sink 55 at the upstream side portion 63 where the protruding height of the plurality of fins 61 is high. The power supply semiconductor element of the compressor control circuit board 35 is disposed inside the region occupied by the upstream portion 63 when viewed from the projecting direction of the plurality of fins 61.
Fig. 5 is a schematic view showing an arrangement relationship between a first radiator of an outdoor unit and a power supply semiconductor element according to an embodiment of the present invention.
As shown in fig. 5, when the plurality of power supply semiconductor elements 51 of the compressor control circuit board 35 are aligned in a row, the plurality of power supply semiconductor elements 51 are aligned in a row along the direction (solid arrow L) in which the plurality of fins 61 are aligned, and are mounted on the compressor control circuit board 35. In other words, the power supply semiconductor elements 51 are arranged in a row in a direction intersecting the extending direction of the fins 61, and are mounted on the compressor control circuit board 35. Preferably, the plurality of power supply semiconductor elements 51 are aligned in a row in a direction orthogonal to the extending direction of the plurality of fins 61.
When the plurality of power supply semiconductor elements 51 of the compressor control circuit board 35 are arranged in a plurality of rows and columns, that is, in a grid pattern, the plurality of power supply semiconductor elements 51 are arranged in a larger number in the direction in which the plurality of fins 61 are arranged (solid arrow L) than in the direction in which the plurality of fins 61 extend (solid arrow E), and are arranged in a grid pattern and mounted on the compressor control circuit board 35. In other words, the number of power supply semiconductor elements 51 arranged in the direction in which the plurality of fins 61 are arranged is larger than the number of power supply semiconductor elements 51 arranged in the direction in which the plurality of fins 61 extend. As shown in fig. 5, when the plurality of power supply semiconductor elements 51 are arranged in a grid pattern of two rows and three columns, the plurality of power supply semiconductor elements 51 are arranged in rows aligned along the direction in which the plurality of fins 61 extend, and the plurality of power supply semiconductor elements 51 are arranged in columns aligned along the direction in which the plurality of fins 61 are arranged. That is, three power supply semiconductor elements 51 are arranged in the direction in which the plurality of fins 61 are arranged, and two power supply semiconductor elements 51 are arranged in the direction in which the plurality of fins 61 extend.
Further, the arrangement of the plurality of power supply semiconductor elements 51 shown in fig. 5 is located inside the region occupied by the upstream portion 63 when viewed from the protruding direction of the plurality of fins 61.
Fig. 6 is a sectional view of the second member box of the outdoor unit according to the embodiment of the present invention, which is located at a line VI-VI in fig. 3.
As shown in fig. 6, the second unit casing 37 of the outdoor unit 1 of the present embodiment functions as a ventilation path for air that directly cools the blower control circuit board 36 and the compressor control circuit board 35.
The second component case 37 allows air in the machine chamber 29 to flow to the heat exchange chamber 28 by suction pressure generated in the casing 12 by the blower 13, thereby directly cooling the blower control circuit board 36 and the compressor control circuit board 35.
The cover portion 65 of the second component case 37 is provided with an intake port 66 for allowing air to flow from the machine chamber 29 into the second component case 37. The suction ports 66 are a plurality of holes provided on a part of the cover portion 65, opposing the compressor control circuit board 35 and the second blower control circuit board 46 disposed below. That is, the cover portion 65 is so-called punched metal.
Flat plate portion 41 of second component case 37 is provided with air outlet 67 for allowing air to flow out from the inside of second component case 37 to heat exchange chamber 28. Air outlet 67 is a plurality of slits provided in a part of flat plate portion 41, facing first blower control circuit board 45 provided above. Each slit is provided with a louver-like wind deflector. The wind direction plate is a part of the flat plate portion 41 that is bent when the flat plate portion 41 is formed with the slit.
However, since the air blown toward the compressor control circuit board 35 and the second blower control circuit board 46 passes through the gap between the first blower control circuit board 45 and the flat plate portion 41 and flows out to the air outlet 67, the cooling of the first blower control circuit board 45 may be insufficient.
Therefore, the second member case 37 is provided with an in-case wind direction plate 68 protruding from the flat plate portion 41 having the air outlet 67 on the upstream side of the first blower control circuit board 45 covered with the air outlet 67, that is, on the side close to the air inlet 66.
Preferably, the in-box wind direction plate 68 is wider than the first blower control circuit board 45 and protrudes from the flat plate portion 41 more than the first blower control circuit board 45, so that the gap between the first blower control circuit board 45 and the flat plate portion 41 can be reliably closed. As shown by wind direction arrow a in fig. 6, in-box wind direction plate 68 guides the air flow toward the gap between first blower control circuit board 45 and flat plate portion 41 to the front side of first blower control circuit board 45 (the surface facing flat plate portion 41 is the back surface, and the surface not facing flat plate portion 41 is the front surface), thereby promoting cooling of first blower control circuit board 45.
Therefore, the air flowing in the second component case 37 passes through the second heat sink 56 and cools the power supply semiconductor element of the blower control circuit board 36. Therefore, the second heat sink 56 includes a plurality of fins 71 protruding into the second component case 37. The plurality of fins 71 extend along the air flow flowing in the second component cartridge 37. The plurality of fins 71 are arranged in a direction intersecting the air flow. The plurality of fins 71 are arranged in a comb shape. The root of each fin 61 is connected to a plate-like base.
As shown in fig. 3 and 6, the downstream side portion 62 (solid arrow H2) of the first heat sink 55 where the protruding height of the fin 61 is low is close to the outer edge 73 of the propeller fan 72 of the blower 13. As shown in fig. 6, when the first heat sink 55 is viewed from the rotation center line direction of the blower 13, the outer edge 73 of the propeller fan 72 overlaps the upstream portion 63 of the first heat sink 55 where the protruding height of the fin 61 is high (solid arrow H1). That is, the first heat sink 55 is disposed such that the downstream portion 62 of the fin 61 having a low projecting height is close to the outer peripheral edge of the propeller fan 72. The power supply semiconductor element 51 of the compressor control circuit board 35 is disposed at a position closest to the propeller fan 72 in the view of the rotation center line direction of the blower 13. That is, a portion 62a closest to the propeller fan 72 among the downstream side portions 62 of the fins 61 overlaps a portion of the compressor control circuit board 35 where the power supply semiconductor element 51 is disposed, as viewed in the air flow direction for cooling the first heat sink 55.
As described above, the outdoor unit 1 of the present embodiment includes the compressor control circuit board 35, and the compressor control circuit board 35 is mounted with the plurality of power supply semiconductor elements 51 for drive-controlling the compressor 6; and a first heat sink 55 extending along the air flow flowing in the housing 12, the first heat sink 55 having a plurality of fins 61 arrayed in a direction intersecting the air flow. The plurality of power supply semiconductor elements 51 are arranged in a row in the direction in which the plurality of fins 61 are arranged, or arranged in a grid pattern in the direction in which the plurality of fins 61 are arranged more than in the direction in which the plurality of fins 61 extend. Therefore, the outdoor unit 1 can improve the cooling efficiency of each power supply semiconductor element 51 by reducing the influence of heat generation between the plurality of power supply semiconductor elements 51.
The outdoor unit 1 of the present embodiment includes a plurality of fins 61, and upstream portions 63 of the plurality of fins 61 in the air flow are higher than downstream portions 62 in the air flow. The plurality of power supply semiconductor elements 51 are in contact with the first heat sink 55 at the upstream portion 63. Therefore, the outdoor unit 1 can further improve the cooling efficiency of each power semiconductor element 51.
The downstream side portion 62 of the outdoor unit 1 of the present embodiment faces the impeller of the fan 13, and the plurality of power supply semiconductor elements 51 are disposed at the portion closest to the impeller in the view of the rotation center line direction of the fan 13. Therefore, the outdoor unit 1 can further improve the cooling efficiency of each power semiconductor element 51.
Therefore, according to the outdoor unit 1 of the present embodiment, the efficiency of cooling the power supply semiconductor element 51 of the compressor control circuit board 35 is improved, thereby preventing the power supply semiconductor element 51 from being damaged and the electrical characteristics from being deteriorated.
Several embodiments of the present invention have been described, but these embodiments are presented as examples only and are not intended to limit the scope of the present invention. These new embodiments may be implemented in other various ways, and various omissions, substitutions, and changes may be made without departing from the spirit of the invention. These embodiments and modifications are included in the scope and gist of the invention, and are also included in the invention described in the claims and the equivalent scope thereof.
Description of the reference symbols
1 outdoor unit, 5 heat exchanger, 6 compressor, 11 air outlet, 12 casing, 13 blower, 15 control device, 16 electric parts box, 21 left side plate, 22 right side plate, 23 front plate, 24 top plate, 26 fan guard plate, 28 heat exchange chamber, 29 machine chamber, 31 first parts box, 35 compressor control circuit board, 36 blower control circuit board, 37 second parts box, 41 flat plate portion, 41a flat plate portion heat exchange chamber side face, 41b flat plate portion machine chamber side face, 45 first blower control circuit board, 46 second blower control circuit board, 51 power supply semiconductor element, 52 module, 55 first radiator, 56 second radiator, 61 fin, 62 downstream side portion, 62a downstream side portion of fin, 63 upstream side portion, 65 cover portion, 66 suction port, 67 outlet; outlet 67, box internal wind deflector 68, fins 71, propeller fan 72, 73 outer edge.
Claims (3)
1. An outdoor unit of a refrigeration cycle apparatus, comprising:
a housing;
a heat exchanger disposed in the casing and configured to exchange heat between air and a refrigerant flowing therein;
a blower that sucks in the air from outside the casing, passes the air sucked into the casing through the heat exchanger, and blows out the air after heat exchange to outside the casing;
a compressor that compresses and discharges the refrigerant and circulates the refrigerant through the heat exchanger;
a circuit board on which a plurality of power supply semiconductor elements for driving and controlling the compressor are mounted; and
a heat sink in thermal contact with the plurality of power supply semiconductor elements to cool the plurality of power supply semiconductor elements,
the heat sink has a plurality of fins extending along an air flow flowing within the case and arranged in a direction intersecting the air flow, the air flow flowing along a depth direction of the case,
the plurality of power supply semiconductor elements are aligned in a row in a direction in which the plurality of fins are arranged; or more fins are arranged in a grid pattern in the direction in which the plurality of fins are arranged than in the direction in which the plurality of fins extend.
2. The outdoor unit of a refrigeration cycle apparatus of claim 1,
the plurality of fins have a height at an upstream side portion in the air flow higher than a height at a downstream side portion in the air flow,
the plurality of power supply semiconductor elements are in contact with the heat sink at the upstream side portion.
3. The outdoor unit of a refrigeration cycle apparatus of claim 2, wherein,
the downstream side portion is opposed to an impeller of the blower,
the plurality of power supply semiconductor elements are provided at a position closest to the impeller in a view of a rotation center line direction of the blower.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2019128720A JP7333500B2 (en) | 2019-07-10 | 2019-07-10 | Outdoor unit of refrigeration cycle equipment |
| JP2019-128720 | 2019-07-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213841139U true CN213841139U (en) | 2021-07-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021341177.5U Active CN213841139U (en) | 2019-07-10 | 2020-07-09 | Outdoor unit of refrigeration cycle device |
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| JP (1) | JP7333500B2 (en) |
| CN (1) | CN213841139U (en) |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0412559A (en) * | 1990-05-01 | 1992-01-17 | Fujitsu Ltd | Cooling structure of electronic device |
| JP2000164773A (en) * | 1998-11-30 | 2000-06-16 | Matsushita Electric Works Ltd | Radiator |
| WO2018062170A1 (en) * | 2016-09-27 | 2018-04-05 | 三菱電機株式会社 | Outdoor unit for air conditioner, and air conditioner |
| CN208025696U (en) * | 2018-01-25 | 2018-10-30 | 珠海格力电器股份有限公司 | Outdoor unit of air conditioner |
-
2019
- 2019-07-10 JP JP2019128720A patent/JP7333500B2/en active Active
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- 2020-07-09 CN CN202021341177.5U patent/CN213841139U/en active Active
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| JP2021014938A (en) | 2021-02-12 |
| JP7333500B2 (en) | 2023-08-25 |
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