Air conditioner outdoor unit

Abstract

The utility model relates to an air conditioner outdoor unit which comprises a shell. A separator; a compressor; an outdoor heat exchanger; an outdoor heat exchange fan; at least part of the electric fitting box is arranged in the first cavity; the circuit board is arranged in the electric fitting box, and the circuit board comprises a circuit board body used for bearing electronic components; the power module is connected with the circuit board body; the refrigerant radiator is in contact with the power module so as to radiate heat of the power module; the refrigerant radiator comprises a refrigerant pipe, the refrigerant pipe is communicated with the refrigerant loop, and the refrigerant pipe is in contact with the power module; the first fixing piece is arranged on the side, away from the power module, of the refrigerant pipe, abuts against the refrigerant pipe and is connected with the circuit board body; wherein the surface, in contact with the power module, of the refrigerant pipe is defined as a first heat transfer surface, and the first heat transfer surface is a plane, so that the refrigerant pipe can conveniently perform uniform-temperature heat dissipation on the power module.

Description

Technical Field

[0001] This application relates to the technical field of air conditioners, and particularly to an outdoor unit of an air conditioner. Background Art

[0002] The outdoor unit of an air conditioner includes a housing. A partition is arranged inside the housing, which divides the interior of the housing into a first chamber and a second chamber. A compressor is arranged in the first chamber, and an outdoor heat exchange fan and an outdoor heat exchanger are arranged in the second chamber. A refrigerant circuit is arranged between the compressor and the outdoor heat exchanger. The outdoor heat exchange fan drives outdoor air into the housing, and after heat exchange with the outdoor heat exchanger, blows it outdoors.

[0003] A circuit board is arranged in the outdoor unit of the air conditioner, and the circuit board includes a power module. On the circuit board, the power module is one of the main heat sources. To ensure the normal operation and reliability of the circuit board, heat dissipation measures need to be taken for the power module.

[0004] In some outdoor units of air conditioners, refrigerant is used as the heat exchange medium to dissipate heat from the power module. A heat dissipation adapter plate is arranged between the power module and the refrigerant pipe, which can increase the contact area with the power module and play a role in uniform heat conduction.

[0005] The heat dissipation adapter plate is arranged between the power module and the refrigerant pipe, which will cause the problem of increasing thermal resistance and hinder the heat transfer to a certain extent. Manufacturing and using the heat dissipation adapter plate will increase the cost of the product and also increase the weight of the outdoor unit of the air conditioner. If the connection or installation of the heat dissipation adapter plate becomes loose or deformed, it may affect the stability and reliability of the entire heat dissipation system.

[0006] The heat dissipation adapter plate can achieve the effect of uniform heat dissipation for the power module, but canceling the heat dissipation adapter plate will cause uneven surface heat dissipation of the power module and may damage the power module.

[0007] In view of this, this application is proposed. Utility Model Content

[0008] Problems to be Solved by the Utility Model

[0009] The purpose of the present utility model is to solve the above problems and other problems to at least a certain extent.

[0010] For this reason, this application provides an outdoor unit of an air conditioner, including:

[0011] A housing, inside which there is a receiving cavity;

[0012] A partition, arranged in the receiving cavity, and the partition divides the receiving cavity into a first chamber and a second chamber;

[0013] A compressor, arranged in the first chamber;

[0014] An outdoor heat exchanger, a refrigerant circuit is provided between the outdoor heat exchanger and the compressor;

[0015] An outdoor heat exchange fan, which is arranged in the second chamber, and the outdoor heat exchange fan rotates in a working state to drive outdoor air into the housing, so that the outdoor air entering the housing exchanges heat with the outdoor heat exchanger in the outdoor space.

[0016] An electrical component box, at least part of the electrical component box is arranged in the first chamber;

[0017] A circuit board, which is arranged inside the electrical component box, and the circuit board includes:

[0018] A circuit board body, which is used to carry electronic components;

[0019] A power module, which is connected to the circuit board body;

[0020] A refrigerant radiator, the refrigerant radiator is in contact with the power module to dissipate heat from the power module; the refrigerant radiator includes:

[0021] A refrigerant pipe, the refrigerant pipe communicates with the refrigerant circuit, and the refrigerant pipe is in contact with the power module;

[0022] A first fixing member, which is arranged on the side of the refrigerant pipe away from the power module, the first fixing member abuts against the refrigerant pipe, and the first fixing member is connected to the circuit board body;

[0023] Wherein, the surface where the refrigerant pipe is in contact with the power module is defined as a first heat transfer surface, and the first heat transfer surface is a plane.

[0024] The present application also provides an outdoor unit of an air conditioner, including:

[0025] A housing, which is provided with a containing cavity inside;

[0026] A partition board, which is arranged in the containing cavity, and the partition board divides the containing cavity into a first chamber and a second chamber;

[0027] A compressor, which is arranged in the first chamber;

[0028] An outdoor heat exchanger, a refrigerant circuit is provided between the outdoor heat exchanger and the compressor;

[0029] An outdoor heat exchange fan, which is arranged in the second chamber, and the outdoor heat exchange fan rotates in a working state to drive outdoor air into the housing, so that the outdoor air entering the housing exchanges heat with the outdoor heat exchanger in the outdoor space.

[0030] An electrical component box, at least a part of the electrical component box is disposed in the first chamber;

[0031] A circuit board, disposed inside the electrical component box, the circuit board includes:

[0032] A circuit board body, for carrying electronic components;

[0033] A power module, connected to the circuit board body;

[0034] A refrigerant radiator, the refrigerant radiator is in contact with the power module to dissipate heat from the power module; the refrigerant radiator includes:

[0035] A refrigerant pipe, the refrigerant pipe communicates with the refrigerant circuit, the refrigerant pipe has a first heat transfer surface, the first heat transfer surface is a flat surface and is attached to the power module;

[0036] A first fixing member, disposed on a side of the refrigerant pipe away from the power module, the first fixing member abuts against the refrigerant pipe, and the first fixing member is connected to the power module and the circuit board.

[0037] In some embodiments of the present application, it further includes a module bracket, disposed between the power module and the circuit board body, the module bracket is used to support the power module.

[0038] In some embodiments of the present application, the first fixing member includes an eighth connection hole, the eighth connection hole penetrates through the first fixing member;

[0039] The module bracket includes a ninth connection hole, the ninth connection hole corresponds to the eighth connection hole, and the ninth connection hole penetrates through the module bracket;

[0040] The circuit board body includes a tenth connection hole, the tenth connection hole corresponds to the ninth connection hole;

[0041] The electrical component box includes a fourteenth connection hole, the fourteenth connection hole corresponds to the tenth connection hole;

[0042] A fifth fastener passes through the eighth connection hole, the ninth connection hole, the tenth connection hole and the fourteenth connection hole to fix the first fixing member.

[0043] In some embodiments of the present application, the module bracket includes an eleventh connection hole, the eleventh connection hole penetrates through the module bracket;

[0044] The circuit board body includes a twelfth connection hole, the twelfth connection hole corresponds to the eleventh connection hole;

[0045] The electrical box includes a thirteenth connection hole, and the thirteenth connection hole corresponds to the twelfth connection hole;

[0046] The outdoor unit of the air conditioner includes a sixth fastener, and the sixth fastener passes through the eleventh connection hole, the twelfth connection port and the thirteenth connection hole to fix the module bracket to the electrical box.

[0047] In some embodiments of the present application, the eighth connection hole and the eleventh connection hole are not concentrically arranged.

[0048] In some embodiments of the present application, the module bracket includes a first positioning post, and the first positioning post protrudes towards the power module;

[0049] The power module includes a first positioning hole, and the first positioning hole corresponds to the first positioning post;

[0050] The first positioning post is inserted into the first positioning hole to position the power module.

[0051] In some embodiments of the present application, the shortest distance between the outer surface of the first positioning post and the first positioning hole is a third spacing X3, and X3≥0.1mm.

[0052] In some embodiments of the present application, the module bracket includes:

[0053] A first protruding portion, which extends away from the circuit board body;

[0054] A second protruding portion, which is disposed opposite to the first protruding portion;

[0055] The power module is disposed between the first protruding portion and the second protruding portion, and the refrigerant pipe is disposed between the first protruding portion and the second protruding portion.

[0056] In some embodiments of the present application, the refrigerant pipe includes:

[0057] At least two straight pipe sections, which are disposed between the first protruding portion and the second protruding portion, the direction in which the straight pipe sections are arranged in parallel is the second direction, and the ends of adjacent straight pipe sections are connected to each other to circulate refrigerant.

[0058] In some embodiments of the present application, it is defined that in the second direction, the shortest distance between the straight pipe section and the first protruding portion is a fourth spacing C3, and C3≥0.2mm.

[0059] In some embodiments of the present application, the first direction is perpendicular to the second direction, and the power module and the refrigerant pipe are arranged along the first direction;

[0060] In the first direction, the distance between the two farthest points on the same straight pipe section is the sixth spacing A3;

[0061] In the second direction, the distance between the two farthest points on the same straight pipe section is the seventh spacing B3; A3 / B3 ≥ 0.3.

[0062] Advantages of the utility model

[0063] In this embodiment, the first heat transfer surface and the second heat transfer surface are provided. The mutual fitting and contact of the first heat transfer surface and the second heat transfer surface can increase the heat conduction area between the refrigerant pipe and the power module, improve the heat transfer efficiency, make the temperatures at all parts of the plane where the refrigerant pipe is connected to the power module approximately uniform, and enable the power module to be evenly cooled even after the heat dissipation adapter plate is removed.

[0064] Additional aspects and advantages of the present utility model will be partly given in the following description, partly become obvious from the following description, or be understood through the practice of the present utility model. Brief description of the drawings

[0065] Figure 1 is a structural diagram of an air conditioner according to one embodiment of the present application;

[0066] Figure 2 is a diagram showing the refrigerant circuit of an air conditioner according to one embodiment of the present application;

[0067] Figure 3 is a schematic diagram of the overall structure of an indoor unit of an air conditioner according to one embodiment of the present application;

[0068] Figure 4 is a schematic diagram of the overall structure of an outdoor unit of an air conditioner according to one embodiment of the present application;

[0069] Figure 5 is a schematic diagram of the internal structure of an outdoor unit of an air conditioner according to one embodiment of the present application;

[0070] Figure 6 is a split schematic diagram of the refrigerant radiator and the electrical box of an outdoor unit of an air conditioner according to one embodiment of the present application Figure 2

[0071] Figure 7 is a schematic diagram of the structure of the cover of an outdoor unit of an air conditioner according to one embodiment of the present application;

[0072] Figure 8 is a schematic diagram of the structure of the refrigerant pipe of an outdoor unit of an air conditioner according to one embodiment of the present application;

[0073] Figure 9Schematic diagram of the module bracket of the outdoor unit of an air conditioner according to one embodiment of the present application;

[0074] Figure 10 Schematic diagram of the cold circuit board of the outdoor unit of an air conditioner according to one embodiment of the present application;

[0075] Figure 11 Schematic diagram of the electrical installation box of the outdoor unit of an air conditioner according to one embodiment of the present application;

[0076] Figure 12 Schematic diagram of the installation position of the power module of the outdoor unit of an air conditioner according to one embodiment of the present application;

[0077] Figure 13 is Figure 12 Cross-sectional view taken along the A-A direction in

[0078] Figure 14 is Figure 13 Enlarged view of part C in

[0079] Figure 15 Assembly schematic of the electrical installation box and the refrigerant radiator of the outdoor unit of an air conditioner according to one embodiment of the present application Figure 2

[0080] Figure 16 is Figure 15 Cross-sectional view taken along the B-B direction of a refrigerant pipe structure in

[0081] Figure 17 Enlarged view of the refrigerant pipe and the power module according to one embodiment of the present application

[0082] Figure 18 is Figure 15 Cross-sectional view taken along the B-B direction of another refrigerant pipe structure in

[0083] In the above figures: air conditioner 1000; air conditioner indoor unit 100; indoor heat exchanger 1001; air conditioner outdoor unit 200; compressor 201; outdoor heat exchanger 202; throttling device 204; main body 300; housing 3; heat exchange air inlet 31; heat exchange air outlet 32; housing 21; first chamber 211; second chamber 212; partition 22; electrical component box 23; thirteenth connection hole 2301; fourteenth connection hole 2302; circuit board body 25; tenth connection hole 2501; twelfth connection hole 2502; power module 26;; first positioning hole 2601; second heat transfer surface 2602; pin 2603; refrigerant radiator 208; refrigerant pipe 29; straight pipe section 291; first heat transfer surface 293; third heat transfer surface 294; fourth heat transfer surface 295; fifth heat transfer surface 296; sixth heat transfer surface 297; first fixing member 301; eighth connection hole 3011; fifth fastener 302; sixth fastener 303; module bracket 51; ninth connection hole 501; eleventh connection hole 502; first positioning post 503; first protrusion 504; second protrusion 505. Detailed implementation manners

[0084] Next, some embodiments of the present disclosure will be described clearly and completely with reference to the accompanying drawings. Apparently, the described embodiments are only a part of the embodiments of the present disclosure, rather than all of the embodiments. Based on the embodiments provided by the present disclosure, all other embodiments obtained by those of ordinary skill in the art belong to the scope of protection of the present disclosure.

[0085] This embodiment provides an air conditioner outdoor unit, which will be described below with reference to Figures 1 - 18 Describe the air conditioner outdoor unit.

[0086] The air conditioner outdoor unit 200 is a component of the air conditioner 1000. Among them, the air conditioner 1000 further includes an air conditioner indoor unit 100.

[0087] Refer to Figures 1 - 4 , the air conditioner 1000 may include an air conditioner indoor unit 100 and an air conditioner outdoor unit 200. The air conditioner indoor unit 100 is installed in the indoor space. The air conditioner outdoor unit 200 is installed in the outdoor space for heat exchange with the outdoor environment.

[0088] The air conditioner indoor unit can be a wall-mounted air conditioner indoor unit or a floor-standing air conditioner indoor unit. In this application, the wall-mounted air conditioner indoor unit is taken as an example for elaboration.

[0089] Refer to Figure 3, the air conditioner indoor unit 100 includes a main body 300. The main body 300 has a bottom and a top. The direction from the bottom to the top of the main body 300 is the height direction of the main body 300. The main body 300 also has a length direction, where the length direction of the main body 300 is from one side to the other side in the left - right direction of the main body 300. The main body 300 has a front side and a rear side which are oppositely arranged. Among them, the side of the main body 300 facing the user is the front side of the main body 300, and the direction from the front side to the rear side of the main body 300 is the front - rear direction of the main body 300.

[0090] The main body 300 may include a housing 3. The housing 3 is arranged in the indoor space. The housing 3 has a front side and a rear side which are oppositely arranged. Among them, the side of the housing 3 facing the user is the front side of the housing 3.

[0091] The main body 300 may include a heat - exchange air inlet 31. The heat - exchange air inlet 31 is arranged at the top of the housing 3. When cooling or heating, indoor air can enter the interior of the housing 3 through the heat - exchange air inlet 31.

[0092] The main body 300 may include a first cavity. The first cavity is formed inside the housing 3. The first cavity is in communication with the heat - exchange air inlet 31, and indoor air can enter the first cavity through the heat - exchange air inlet 31.

[0093] The main body 300 may include a heat - exchange air outlet 32. The heat - exchange air outlet 32 is arranged at the bottom of the housing 3. The first cavity is in communication with both the heat - exchange air inlet 31 and the heat - exchange air outlet 32. When cooling or heating, indoor air flows into the first cavity through the heat - exchange air inlet 31 and then flows into the room through the heat - exchange air outlet 32.

[0094] The main body 300 may include an indoor heat exchanger 1001. The indoor heat exchanger 1001 is arranged in the first cavity. The indoor heat exchanger 1001 is used for heat - exchanging with the indoor air entering the first cavity.

[0095] In some embodiments, the main body 300 may include a base. The base is arranged in the first cavity, and a heat - exchange air duct is formed inside the base.

[0096] In some embodiments, the main body 300 may include a heat - exchange fan. The heat - exchange fan is arranged in the heat - exchange air duct. The axial direction of the heat - exchange fan is the same as the length direction of the main body 300. By the operation of the heat - exchange fan, indoor air is introduced into the first cavity from the heat - exchange air inlet, then flows through the indoor heat exchanger 1001, and after flowing through the heat - exchange air duct, it flows into the room through the heat - exchange air outlet 32.

[0097] It can be set that the heat - exchange fan is arranged on the leeward side of the indoor heat exchanger 1001 to reduce the resistance of the indoor heat exchanger 1001 to air flow and improve the air intake volume into the room.

[0098] Refer to Figures 2 - 5, in some embodiments, the outdoor unit 200 of the air conditioner is disposed in an outdoor space. The outdoor unit 200 of the air conditioner includes a housing, the housing constitutes the external structure of the outdoor unit 200 of the air conditioner, and an accommodation cavity is provided inside the housing 21.

[0099] In some embodiments, the outdoor unit 200 of the air conditioner may include a partition 22. The partition 22 is disposed inside the accommodation cavity. The partition 22 divides the accommodation cavity into a first chamber 211 and a second chamber 212, and the first chamber 211 and the second chamber 212 are arranged side by side.

[0100] In some embodiments, the first chamber 211 and the second chamber 212 may communicate with each other.

[0101] In some embodiments, the housing 21 may include an outdoor air inlet and an outdoor air outlet. The housing 21 has a front side and a rear side that are oppositely arranged. The outdoor air outlet is provided on the front side of the housing 21, and the outdoor air inlet is provided on the rear side of the housing 21. The outdoor air inlet is communicated with the outdoor space and the second chamber 212, and the outdoor air outlet is communicated with the outdoor space and the second chamber 212. The housing 21 has a bottom and a top, and the direction from the bottom of the housing 21 to the top of the housing 21 is the height direction of the housing 21.

[0102] In some embodiments, the outdoor unit 200 of the air conditioner may include a compressor 201. The compressor 201 is disposed in the first chamber and is installed at the bottom of the outdoor unit 200 of the air conditioner.

[0103] In some embodiments, the outdoor unit 200 of the air conditioner may include an outdoor heat exchanger 202. A refrigerant circuit is provided between the compressor and the outdoor heat exchanger. Refrigerant flows in the outdoor heat exchanger and the refrigerant circuit. The refrigerant in the outdoor heat exchanger 202 can be used to exchange heat with the air that enters the second chamber and flows through the outdoor heat exchanger 202.

[0104] In some embodiments, the outdoor unit 200 of the air conditioner may include an outdoor heat exchange fan. The outdoor heat exchange fan is disposed in the second chamber. When the outdoor heat exchange fan is in a working state, it rotates to drive outdoor air to enter the housing, so that the outdoor air entering the housing exchanges heat with the outdoor heat exchanger in the outdoor space.

[0105] In some embodiments, the outdoor unit 200 of the air conditioner may include a throttling device 204. The throttling device 204 is disposed in the first chamber and is used to expand the high-temperature and high-pressure liquid-phase refrigerant into a low-pressure liquid-phase refrigerant.

[0106] The throttling device 204 may be disposed on the windward side of the outdoor heat exchanger 202, which is convenient for connecting with the compressor 201.

[0107] The air conditioner 1000 performs the refrigeration cycle of the air conditioner 1000 by using a compressor 201, an outdoor heat exchanger 202, a throttling device 204, and an indoor heat exchanger 1001. The refrigeration cycle includes a series of processes involving compression, condensation, expansion, and evaporation, and supplies refrigerant to the air that has been conditioned and heat-exchanged.

[0108] The compressor 201 compresses the refrigerant gas in a low-temperature and low-pressure state and discharges the refrigerant gas in a high-temperature and high-pressure state. The discharged refrigerant gas flows into the outdoor heat exchanger 202.

[0109] The outdoor heat exchanger 202 condenses the compressed refrigerant into a liquid phase, and heat is released to the surrounding environment through the condensation process.

[0110] The throttling device 204 expands the high-temperature and high-pressure liquid-phase refrigerant condensed in the outdoor heat exchanger 202 into a low-pressure liquid-phase refrigerant.

[0111] The indoor heat exchanger 1001 evaporates the refrigerant expanded in the throttling device 204 and returns the refrigerant gas in a low-temperature and low-pressure state to the compressor 201.

[0112] The indoor heat exchanger 1001 can achieve a refrigeration effect by using the latent heat of evaporation of the refrigerant to perform heat exchange with the material to be cooled. Throughout the cycle, the air conditioner 1000 can adjust the temperature of the indoor space.

[0113] In both the indoor heat exchanger 1001 and the outdoor heat exchanger 202, one of them is a condenser and the other is an evaporator. When the indoor heat exchanger 1001 is used as a condenser and the outdoor heat exchanger 202 is used as an evaporator, the air conditioner 1000 serves as a heater in the heating mode. When the indoor heat exchanger 1001 is used as an evaporator and the outdoor heat exchanger 202 is used as a condenser, the air conditioner 1000 serves as a cooler in the cooling mode.

[0114] Refer to Figures 5 - 18 , in some embodiments, the outdoor unit 200 of the air conditioner may include an electrical component box 23, and at least a part of the electrical component box 23 is disposed in the first chamber 211.

[0115] In some embodiments, the entire electrical component box 23 is disposed in the first chamber 211.

[0116] In some embodiments, the outdoor unit of the air conditioner may include a circuit board, and the circuit board is connected inside the electrical component box 23, and the circuit board may adopt a printed circuit board.

[0117] In some embodiments, the circuit board may include a circuit board body 25, and the circuit board body 25 is used to carry electronic components.

[0118] In some embodiments, the circuit board may include a power module 26, and the power module 26 is connected to the circuit board body 25.

[0119] The power module 26 can be set as an IGBT power module 26. When the IGBT power module 26 is working, it will generate a certain amount of heat. In the circuit board, the IGBT power module 26 is one of the main heat sources. To ensure the normal operation and reliability of the circuit board, heat dissipation measures need to be taken for the power module 26.

[0120] In some embodiments, the outdoor unit of the air conditioner may include a refrigerant radiator 208, and at least part of the refrigerant radiator 208 is disposed in the first chamber. The refrigerant radiator 208 is in contact with the power module 26 to dissipate heat from the power module 26.

[0121] In some embodiments, the refrigerant radiator 208 may include a refrigerant pipe 29. The refrigerant pipe 29 communicates with the refrigerant circuit. The refrigerant pipe 29 is in contact with the power module 26. The refrigerant in the refrigerant circuit can flow through the refrigerant pipe 29 to exchange heat with the power module 26, thereby reducing the temperature of the power module 26.

[0122] In some embodiments, the refrigerant radiator 208 may include a first fixing member 301. The first fixing member 301 is disposed on a side of the refrigerant pipe 29 away from the power module 26. The first fixing member 301 abuts against the refrigerant pipe 29, and the first fixing member 301 is connected to the circuit board body 25.

[0123] In some embodiments, a side of the refrigerant pipe 29 in contact with the power module 26 is set as a first heat transfer surface 293, and the first heat transfer surface 293 can be set as a plane. A side of the power module 26 in contact with the refrigerant pipe 29 is set as a second heat transfer surface 2602, and the second heat transfer surface 2602 can be set as a plane. The first heat transfer surface 293 is in close contact with the second heat transfer surface 2602.

[0124] In this embodiment, the refrigerant pipe 29 is in direct contact with the power module 26, and no heat dissipation adapter plate is provided between the refrigerant pipe 29 and the power module 26, which can reduce the additional thermal resistance introduced by the heat dissipation adapter plate and improve the heat transfer efficiency. Not providing the heat dissipation adapter plate can reduce the cost of the product, reduce the weight of the outdoor unit of the air conditioner, and also solve the problems that occur in the connection or installation of the heat dissipation adapter plate.

[0125] In this embodiment, no refrigerant heat dissipation plate is provided, so that the refrigerant pipe 29 is in direct contact with the power module 26, avoiding problems such as material aging and corrosion of the refrigerant heat dissipation plate, and further avoiding the decline in the heat dissipation performance of the refrigerant radiator 208. Not providing the refrigerant heat dissipation plate simplifies the structure of the refrigerant radiator 208 and reduces the difficulty in maintenance and troubleshooting.

[0126] In this embodiment, a first heat transfer surface 293 and a second heat transfer surface 2602 are provided. The first heat transfer surface 293 and the second heat transfer surface 2602 can be set as flat surfaces, and the processing technology of flat surfaces is simple. By pressing the refrigerant pipe 29, the side of the refrigerant pipe 29 in contact with the power module 26 can be pressed into the first heat transfer surface 293. The power module 26 can be set as a square module, and the power module 26 is connected to the circuit board body 25 through pins 2603. One end of the pin 2603 is connected to the power module 26, and the other end of the pin 2603 is connected to the circuit board body 25. The side of the power module 26 in contact with the refrigerant pipe 29 is set as the second heat transfer surface 2602. The mutual fitting and contact of the first heat transfer surface 293 and the second heat transfer surface 2602 can increase the heat conduction area between the refrigerant pipe 29 and the power module 26, improve the heat transfer efficiency, make the temperature of each part of the plane where the refrigerant pipe 29 is connected to the power module 26 approximately uniform, and enable the power module 26 to be evenly cooled even after the heat dissipation adapter plate is removed.

[0127] In some embodiments, the outdoor unit of the air conditioner may include a module bracket 51. The module bracket 51 is disposed between the power module 26 and the circuit board body 25, and the module bracket 51 is used to support the power module 26.

[0128] In some embodiments, the first fixing member 301 may include an eighth connection hole 3011, and the eighth connection hole 3011 penetrates through the first fixing member 301.

[0129] There may be at least two eighth connection holes 3011, and the eighth connection holes 3011 may be respectively disposed on opposite sides of the first fixing member 301 to facilitate the fixing of the first fixing member 301.

[0130] In some embodiments, the module bracket 51 may include a ninth connection hole 501. The ninth connection hole 501 corresponds to the eighth connection hole 3011, and the ninth connection hole 501 penetrates through the module bracket 51.

[0131] There may be at least two ninth connection holes 501, and the ninth connection holes 501 may be respectively disposed on opposite sides of the module bracket 51. The ninth connection holes 501 are arranged in one-to-one correspondence with the eighth connection holes 3011.

[0132] In some embodiments, the circuit board body 25 may include a tenth connection hole 2501, and the tenth connection hole 2501 is arranged in one-to-one correspondence with the ninth connection hole 501.

[0133] There may be at least two tenth connection holes 2501, and the tenth connection holes 2501 may be set to penetrate through the circuit board body 25.

[0134] The outdoor unit of the air conditioner includes a fifth connection hole, and a fifth fastener 302 passes through an eighth connection hole 3011, a ninth connection hole 501, and a tenth connection hole 2501 to fix the refrigerant pipe 29.

[0135] The first fixing member 301 is pressed against the side of the refrigerant pipe 29 away from the power module 26 by the fifth fastener 302, thereby fixing the refrigerant pipe 29.

[0136] One side of the refrigerant pipe 29 in contact with the power module 26 is set as a first heat transfer surface 293, and one side of the power module 26 in contact with the refrigerant pipe 29 is set as a second heat transfer surface 2602. The mutual fitting contact between the first heat transfer surface 293 and the second heat transfer surface 2602 can increase the heat conduction area between the refrigerant pipe 29 and the power module 26, improve the heat transfer efficiency, make the temperatures at all parts of the plane where the refrigerant pipe 29 is connected to the power module 26 roughly uniform, and enable the power module 26 to be evenly cooled even after the heat dissipation adapter plate is removed.

[0137] In some embodiments, the module bracket 51 may include an eleventh connection hole 502, and the eleventh connection hole 502 penetrates through the module bracket 51.

[0138] The eleventh connection hole 502 is set to at least two to facilitate the positioning and fixing of the module bracket 51 and prevent the module bracket 51 from shaking.

[0139] In some embodiments, the circuit board body 25 may include a twelfth connection hole 2502, the twelfth connection hole 2502 corresponds to the eleventh connection hole 502, the twelfth connection hole 2502 is provided through the circuit board body 25, and the number of the twelfth connection holes 2502 corresponds to that of the eleventh connection holes 502 one by one.

[0140] In some embodiments, the electrical box may include a thirteenth connection hole 2301, the thirteenth connection hole 2301 corresponds to the twelfth connection hole 2502, and the thirteenth connection hole 2301 can penetrate through the electrical box.

[0141] The outdoor unit of the air conditioner may include a sixth fastener 303. The sixth fastener 303 passes through the eleventh connection hole 502, the twelfth connection hole 2502, and the thirteenth connection hole 2301 to fix the module bracket 51 to the circuit board body 25 and the electrical installation box 23.

[0142] In some embodiments, the module bracket 51 may include a first protrusion 504. One side of the module bracket 51 is connected to the circuit board body 25, and the other side of the module bracket 51 is provided with the first protrusion 504, and the first protrusion 504 extends in a direction away from the circuit board body 25.

[0143] In some embodiments, the module bracket 51 may include a second protruding portion 505, which is disposed opposite to the first protruding portion 504. The second protruding portion 505 and the first protruding portion 504 are disposed on the side of the module bracket 51 away from the circuit board body 25, and the second protruding portion 505 extends in a direction away from the circuit board body 25.

[0144] The power module 26 is disposed between the first protruding portion 504 and the second protruding portion 505. The first protruding portion 504 and the second protruding portion 505 can limit the power module 26, facilitating the installation of the power module 26.

[0145] In some embodiments, the module bracket 51 may include a first positioning post 503, which protrudes towards the power module.

[0146] In some embodiments, the power module 26 may include a first positioning hole 2601, which corresponds to the first positioning post 503. The first positioning post 503 is inserted into the first positioning hole 2601 to position the power module 26 and prevent the power module 26 from moving.

[0147] The extending direction of the first positioning post 503 is the same as that of the first protruding portion 504. After being limited by the first protruding portion 504 and the second protruding portion 505, it is convenient to insert the first positioning post 503 into the first positioning hole 2601.

[0148] After the first positioning post 503 is inserted into the first positioning hole 2601, the power module 26 abuts against the module bracket 51. At this time, the power module 26 is welded to the circuit board body 25.

[0149] Refer to Figures 13 - 14 , in some embodiments, the shortest distance between the outer surface of the first positioning post 503 and the first positioning hole 2601 is the third spacing X3, X3 ≥ the thirty-seventh parameter value. The thirty-seventh parameter value can be any value between 0.1 mm and 0.5 mm. When the thirty-seventh parameter value is 0.1 mm, that is, X3 ≥ 0.1 mm, the distance between the outer surface of the first positioning post 503 and the first positioning hole 2601 can be prevented from being too small, which is convenient for the alignment and assembly of the first positioning post 503 and the first positioning hole 2601, improving the assembly efficiency between the first positioning post 503 and the first positioning hole 2601, and further improving the installation efficiency of the power module 26 and the module bracket 51.

[0150] In some embodiments, X3≤the thirty-eighth parameter value, and the thirty-eighth parameter value can be any value between 0.1mm-0.5mm; when the thirty-eighth parameter value is 0.5, that is, X3≤0.5mm, the distance between the outer surface of the first positioning column 503 and the first positioning hole 2601 will not be too large, thereby avoiding a large gap between the first positioning column 503 and the first positioning hole 2601, and further preventing a large shake between the power module 26 and the module bracket 51.

[0151] In some embodiments, the module bracket 51 abuts against the circuit board body 25, the first fixing member 301 abuts against the side of the module bracket 51 away from the circuit board body 25, the fifth fastener 302 passes through the eighth connecting hole 3011, the ninth connecting hole 501, the tenth connecting hole 2501 and the fourteenth connecting hole 2302 to press the first fixing member 301 to connect the module bracket 51, and the module bracket 51 supports the power module 26 to prevent the power module 26 from being damaged by force.

[0152] In some embodiments, the eighth connection hole 3011 and the eleventh connection hole 502 are not arranged concentrically, that is, the fifth fastener 302 and the sixth fastener 303 are arranged in a staggered manner.

[0153] Reference Figures 15 - 18 In some embodiments, the refrigerant pipe 29 may include a straight pipe section 291, the number of the straight pipe sections 291 is set to at least two, at least two straight pipe sections 291 are arranged between the first protrusion 504 and the second protrusion 505, adjacent straight pipe sections 291 are arranged in parallel and extend in the same direction, and the ends of adjacent straight pipe sections 291 are connected to circulate the refrigerant to facilitate heat dissipation of the power module.

[0154] The direction in which the straight pipe sections 291 are arranged in parallel is defined as the second direction. In the second direction, the shortest distance between the straight pipe section 291 and the first protrusion 504 is a fourth spacing C3, C3 ≥ the thirty-ninth parameter value, and the thirty-ninth parameter value can be any value between 0.2mm-2mm. When the thirty-ninth parameter value is 0.2mm, that is, C3 ≥ 0.2mm, the spacing between the straight pipe section 291 and the first protrusion 504 will not be too small, which can facilitate the alignment and assembly of the refrigerant pipe 29 between the first protrusion and the second protrusion, thereby improving the assembly efficiency of the refrigerant pipe 29.

[0155] In some embodiments, C3≤40th parameter value, the 40th parameter value can be any value between 0.2-2mm. When the 40th parameter value is 2mm, that is, C3≤2mm, the distance between the straight pipe section 291 and the first protrusion 504 will not be too large. The fourth distance C3 can limit the power module 26, making the assembly of the functional module faster and more efficient.

[0156] In some embodiments, the first direction is perpendicular to the second direction, and the power module 26 and the refrigerant pipe 29 are arranged along the first direction. In the first direction, the refrigerant pipe 29 is disposed on a side of the power module 26 away from the circuit board body 25.

[0157] In the first direction, the distance between the two points farthest apart on the same straight pipe section 291 is the sixth pitch A3. In the second direction, the distance between the two points farthest apart on the same straight pipe section 291 is the seventh pitch B3, and A3 / B3 ≥ the forty-first parameter value.

[0158] Referring to Figures 16 - 17 , in some embodiments, the refrigerant pipe 29 may include a third heat transfer surface 294, a fourth heat transfer surface 295, and a fifth heat transfer surface 296. The third heat transfer surface 294 is disposed on a side of the refrigerant pipe 29 away from the power module 26. The fourth heat transfer surface 295 and the fifth heat transfer surface 296 are respectively disposed between the first heat transfer surface 293 and the third heat transfer surface 294. The first heat transfer surface 293, the fourth heat transfer surface 295, the third heat transfer surface 294, and the fifth heat transfer surface 296 are sequentially surrounded and connected to form a refrigerant pipe 29 with a rectangular cross-section.

[0159] When the cross-section of the refrigerant pipe 29 is set to be rectangular, A3 / B3 ≥ the forty-first parameter value. The forty-first parameter value may be any value between 0.3 and 1. When the forty-first parameter value is 0.3, that is, A3 / B3 ≥ 0.3, it can prevent the flow path of the refrigerant pipe 29 from being too narrow, increase the refrigerant flow rate in the refrigerant pipe 29, and thus improve the heat dissipation efficiency of the power module 26.

[0160] Referring to Figure 18 , in some embodiments, the refrigerant pipe 29 may include a sixth heat transfer surface 297. The sixth heat transfer surface 297 is disposed on a side of the refrigerant pipe 29 away from the power module 26. The sixth heat transfer surface 297 may be set as an arc surface. The first heat transfer surface 293 and the sixth heat transfer surface 297 are surrounded and connected to form a refrigerant pipe 29 with a "D"-shaped cross-section.

[0161] When the cross-section of the refrigerant pipe 29 is set to be "D"-shaped, A3 / B3 ≥ the forty-second parameter value. The forty-second parameter value may be any value between 0.3 and 0.5. When the forty-second parameter value is 0.3, that is, A3 / B3 ≥ 0.3, it can prevent the flow path of the refrigerant pipe 29 from being too narrow, increase the refrigerant flow rate in the refrigerant pipe 29, and thus improve the heat dissipation efficiency of the power module 26.

[0162] Referring to Figure 17 , in some embodiments, the power module 26 includes pins 2603. One end of the pins 2603 is connected to the power module 26, and the other end of the pins 2603 is connected to the circuit board body 25. The power module 26 is connected to the circuit board body 25 through the pins 2603.

[0163] In some embodiments, in the second direction, the point on the second heat transfer surface 2602 closest to the first protrusion 504 is defined as the first point, and the point on the first heat transfer surface 293 of the refrigerant pipe 29 closest to the first protrusion 504 is defined as the second point. The distance between the first point and the second point is the eighth spacing D3, and the eighth spacing D3 is less than or equal to the forty-third parameter value. The forty-third parameter value can be any value between 0 and 3. When the forty-third parameter value is 3 mm, that is, the eighth spacing D3 is less than or equal to 3 mm, it can prevent the contact area between the refrigerant pipe and the power module 26 from being too small, increase the contact area between the first heat transfer surface and the second heat transfer surface, and thus improve the heat dissipation effect of the refrigerant pipe on the power module.

[0164] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present invention.

[0165] In the present invention, unless otherwise clearly defined and limited, the terms "installed", "connected", "connected", "fixed", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection, an electrical connection, or communication with each other; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0166] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as a limitation of the present invention. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present invention.

[0167] In the present invention, the terms "first", "second", "third" are only used for descriptive purposes and should not be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first", "second", "third" may explicitly or implicitly include one or more of such features.

[0168] In the present utility model, unless otherwise clearly defined and limited, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature being "under", "below" and "beneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the horizontal height of the first feature is less than that of the second feature.

[0169] As used herein, the use of "adapted to" or "configured to" means open and inclusive language, which does not exclude a device adapted to or configured to perform additional tasks or steps.

[0170] As used herein, "about", "substantially" or "approximately" includes the stated value and the average value within an acceptable deviation range of the specific value, where the acceptable deviation range is determined by a person of ordinary skill in the art considering the measurement being discussed and the error associated with the measurement of a particular quantity (i.e., the limitations of the measurement system).

[0171] As used herein, "parallel", "perpendicular", "equal" include the stated situation and situations similar to the stated situation, and the range of the similar situations is within an acceptable deviation range, where the acceptable deviation range is determined by a person of ordinary skill in the art considering the measurement being discussed and the error associated with the measurement of a particular quantity (i.e., the limitations of the measurement system). For example, "parallel" includes absolute parallel and approximate parallel, where the acceptable deviation range of approximate parallel may be, for example, within 5° deviation; "perpendicular" includes absolute perpendicular and approximate perpendicular, where the acceptable deviation range of approximate perpendicular may also be, for example, within 5° deviation. "Equal" includes absolute equal and approximate equal, where the acceptable deviation range of approximate equal may be, for example, that the difference between the two equal ones is less than or equal to 5% of either one of them.

[0172] In the present utility model, the terms "an embodiment", "some embodiments", "example", "specific example", or "some examples", etc. mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0173] Although the embodiments of the present utility model have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present utility model. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present utility model.

Claims

1. An air conditioner outdoor unit, characterized in that: include: A housing having a receiving cavity therein; A partition is disposed in the accommodating cavity, and the partition divides the accommodating cavity into a first cavity and a second cavity; A compressor is disposed in the first chamber; An outdoor heat exchanger, wherein a refrigerant circuit is provided between the outdoor heat exchanger and the compressor; An outdoor heat exchange fan is arranged in the second chamber, and the outdoor heat exchange fan rotates in a working state to drive outdoor air into the shell, so that the outdoor air entering the shell exchanges heat with the outdoor heat exchanger in the outdoor space; an electrical box, at least a portion of which is disposed in the first chamber; A circuit board is arranged inside the electrical box, and the circuit board includes: A circuit board body, used to carry electronic components; A power module connected to the circuit board body; A refrigerant radiator, the refrigerant radiator is in contact with the power module to dissipate heat from the power module; the refrigerant radiator comprises: A refrigerant pipe, the refrigerant pipe is connected to the refrigerant circuit, and the refrigerant pipe is in contact with the power module; A first fixing member is arranged on a side of the refrigerant tube away from the power module, the first fixing member abuts against the refrigerant tube, and the first fixing member is connected to the circuit board body; The surface where the refrigerant pipe contacts the power module is defined as a first heat transfer surface, and the first heat transfer surface is a plane.

2. An air conditioner outdoor unit, characterized in that: include: A housing having a receiving cavity therein; A partition is disposed in the accommodating cavity, and the partition divides the accommodating cavity into a first cavity and a second cavity; A compressor is disposed in the first chamber; An outdoor heat exchanger, wherein a refrigerant circuit is provided between the outdoor heat exchanger and the compressor; An outdoor heat exchange fan is arranged in the second chamber, and the outdoor heat exchange fan rotates in a working state to drive outdoor air into the shell, so that the outdoor air entering the shell exchanges heat with the outdoor heat exchanger in the outdoor space; an electrical box, at least a portion of which is disposed in the first chamber; A circuit board is arranged inside the electrical box, and the circuit board includes: A circuit board body, used to carry electronic components; A power module connected to the circuit board body; A refrigerant radiator, the refrigerant radiator is in contact with the power module to dissipate heat from the power module; the refrigerant radiator comprises: A refrigerant pipe, the refrigerant pipe is connected to the refrigerant circuit, the refrigerant pipe has a first heat transfer surface, the first heat transfer surface is a plane and fits with the power module; The first fixing member is arranged on a side of the refrigerant tube away from the power module, the first fixing member is in contact with the refrigerant tube, and the first fixing member is connected to the power module and the circuit board.

3. The air conditioner outdoor unit according to claim 1 or 2, characterized in that: Also includes A module bracket is arranged between the power module and the circuit board body, and the module bracket is used to support the power module.

4. The air conditioner outdoor unit according to claim 3, characterized in that: The first fixing member comprises an eighth connecting hole, and the eighth connecting hole passes through the first fixing member; The module bracket includes a ninth connection hole, the ninth connection hole corresponds to the eighth connection hole, and the ninth connection hole passes through the module bracket; The circuit board body comprises a tenth connection hole, and the tenth connection hole corresponds to the ninth connection hole; The electrical box comprises a fourteenth connection hole, and the fourteenth connection hole corresponds to the tenth connection hole; The fifth fastener passes through the eighth connecting hole, the ninth connecting hole, the tenth connecting hole and the fourteenth connecting hole to fix the first fixing member.

5. The air conditioner outdoor unit according to claim 3, characterized in that: The module bracket includes a first positioning column, and the first positioning column is protruded in a direction close to the power module; The power module comprises a first positioning hole, and the first positioning hole corresponds to the first positioning column; The first positioning column is inserted into the first positioning hole to position the power module.

6. The air conditioner outdoor unit according to claim 5, characterized in that: The shortest distance between the outer surface of the first positioning column and the first positioning hole is a third spacing X3, where X3≥0.1 mm.

7. The air conditioner outdoor unit according to claim 3, characterized in that: The module bracket comprises: A first protrusion, the first protrusion extending in a direction away from the circuit board body; a second protruding portion, the second protruding portion being arranged opposite to the first protruding portion; The power module is disposed between the first protruding portion and the second protruding portion, and the refrigerant pipe is disposed between the first protruding portion and the second protruding portion.

8. The air conditioner outdoor unit according to claim 7, characterized in that: The refrigerant pipe comprises: At least two straight pipe sections are arranged between the first protrusion and the second protrusion, the direction in which the straight pipe sections are arranged in parallel is a second direction, and ends of adjacent straight pipe sections are connected to allow refrigerant to flow.

9. The air conditioner outdoor unit according to claim 8, characterized in that: It is defined that in the second direction, the shortest distance between the straight tube section and the first protrusion is a fourth spacing C3, where C3≥0.2 mm.

10. The air conditioner outdoor unit according to claim 8, characterized in that: The first direction is perpendicular to the second direction, and the power module and the refrigerant pipe are arranged along the first direction; In the first direction, the distance between the two farthest points of the same straight pipe section is a sixth distance A3; In the second direction, the distance between the two farthest points in the same straight pipe section is a seventh spacing B3; A3 / B3≥0.3.

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