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 exchange fan; an outdoor heat exchanger; the electric fitting box is connected to the top of the partition plate, and a mounting opening is formed in the electric fitting box; the circuit board is connected to the interior of the electric fitting box; a power module; the first heat dissipation plate is arranged corresponding to the mounting port, and the power module is arranged at the top of the first heat dissipation plate and is in contact with the first heat dissipation plate; the refrigerant radiator is used for radiating the power module; the fixing piece is arranged in the first cavity and connected to the partition plate; the refrigerant radiator comprises a second heat dissipation plate connected to the top of the fixing piece, and a containing groove is formed in the second heat dissipation plate. The refrigerant pipe is arranged in the containing groove, and the refrigerant pipe communicates with the refrigerant loop; at least one fastener penetrates through and is connected with the power module and the first heat dissipation plate, at least one fastener penetrates through and is connected with the first heat dissipation plate and the second heat dissipation plate, and the circuit board and the second heat dissipation plate are not connected through the fastener, so that the circuit board is convenient to disassemble and maintain.

Description

[0001] This application claims priority to Chinese patent application No. 202422136359.3, filed on August 30, 2024, the entire contents of which are incorporated by reference into this application. Technical Field

[0002] The present application relates to the technical field of air conditioners, and in particular to an air conditioner outdoor unit. Background Art

[0003] The air conditioner outdoor unit includes a shell, a partition is provided in the shell, and the partition divides the interior of the shell into a first chamber and a second chamber. A compressor is provided in the first chamber, and an outdoor heat exchange fan and an outdoor heat exchanger are provided in the second chamber. A refrigerant circuit is provided between the compressor and the outdoor heat exchanger. The outdoor heat exchange fan drives the outdoor air into the shell, and the air is blown outdoors after heat exchange with the outdoor heat exchanger.

[0004] The electrical box can be set on the top of the partition, and the circuit board in the electrical box is set horizontally. In some air-conditioning outdoor units, refrigerant is used as a heat exchange medium to dissipate heat from the power module of the circuit board. The power module is set on the top of the circuit board, and the refrigerant pipe is set above the power module. There is a problem that the condensed water generated by the refrigerant pipe flows onto the power module and the circuit board.

[0005] The refrigerant pipe is arranged above the power module, so when the circuit board is disassembled for maintenance, the refrigerant pipe module needs to be disassembled, which is inconvenient for maintaining the circuit board.

[0006] In view of this, this application is filed. Utility Model Content

[0007] Problems to be solved by the utility model

[0008] The present invention is intended to solve the above-mentioned problems and other problems, at least to a certain extent.

[0009] To this end, the present application provides an air conditioner outdoor unit, comprising:

[0010] a housing having an accommodating cavity therein;

[0011] a partition, disposed in the accommodating cavity, the partition dividing the accommodating cavity into a first chamber and a second chamber;

[0012] a compressor disposed in the first chamber;

[0013] an outdoor heat exchanger, wherein a refrigerant circuit is provided between the outdoor heat exchanger, the compressor and the indoor heat exchanger;

[0014] an outdoor heat exchange fan disposed in the second chamber, wherein 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;

[0015] an electrical box, arranged on top of the partition;

[0016] A circuit board is disposed inside the electrical box, and the circuit board includes:

[0017] A circuit board body, used for carrying electronic components, wherein the circuit board body is arranged horizontally;

[0018] A power module connected to the circuit board body, the power module is arranged downward, and the power module has a solder foot and a fifth connection hole;

[0019] a first heat dissipation plate, the first heat dissipation plate being arranged below the power module and in contact with the power module;

[0020] A refrigerant radiator is provided at the bottom of the first heat sink, and is used to dissipate heat from the power module; the refrigerant radiator includes:

[0021] a second heat dissipation plate, located below the first heat dissipation plate and connected to the first heat dissipation plate, wherein the second heat dissipation plate is provided with a receiving groove;

[0022] a refrigerant pipe, disposed in the receiving tank, the refrigerant pipe being connected to the refrigerant circuit;

[0023] a fixing member, the fixing member being used to connect and fix the second heat sink;

[0024] Among them, at least one fastener passes through the fifth connection hole and connects the power module and the first heat sink, at least one fastener passes through and connects the first heat sink and the second heat sink, and the power module and the second heat sink are not connected by fasteners.

[0025] The above technical solution has the following technical effects: during installation, at least one fastener passes through the fifth connection hole and connects the power module and the first heat sink, at least one fastener passes through and connects the first heat sink and the second heat sink, the power module and the second heat sink are not connected by fasteners, the first heat sink and the refrigerant radiator can be assembled separately and then assembled, which can improve the assembly efficiency of the assembly production line.

[0026] By removing the fasteners connecting the first heat plate and the second heat plate to loosen the connection between the first heat plate and the second heat plate, the electrical box and the second heat plate can be separated, and then the electrical box can be removed to replace and repair the circuit board. There is no need to remove the connection between the second heat plate and the fixing piece, and there is no need to remove the fasteners between the electrical box and the first heat plate to replace and repair the circuit board, which reduces the number of fasteners that need to be removed, improves maintenance efficiency, and makes installation and disassembly more convenient.

[0027] The present application also provides an air conditioner outdoor unit, comprising:

[0028] A housing, comprising a top cover, the top cover being located on the top of the housing, and an accommodating cavity being provided in the housing;

[0029] a partition, disposed in the accommodating cavity, the partition dividing the accommodating cavity into a first chamber and a second chamber;

[0030] a compressor disposed in the first chamber;

[0031] an outdoor heat exchanger, wherein a refrigerant circuit is provided between the outdoor heat exchanger, the compressor and the indoor heat exchanger;

[0032] an outdoor heat exchange fan disposed in the second chamber, wherein 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;

[0033] an electrical box, disposed on top of the partition;

[0034] A circuit board is disposed inside the electrical box, and the circuit board includes:

[0035] A circuit board body, used for carrying electronic components, wherein the circuit board body is arranged horizontally;

[0036] a power module connected to the circuit board body, the power module being located on a side of the circuit board body away from the top cover, and having a solder foot and a fifth connection hole;

[0037] a first heat dissipation plate, the first heat dissipation plate being arranged below the power module and in contact with the power module;

[0038] A refrigerant radiator is provided at the bottom of the first heat sink, and is used to dissipate heat from the power module; the refrigerant radiator includes:

[0039] a second heat dissipation plate, located below the first heat dissipation plate and connected to the first heat dissipation plate, wherein the second heat dissipation plate is provided with a receiving groove;

[0040] a refrigerant pipe, disposed in the receiving tank, the refrigerant pipe being connected to the refrigerant circuit;

[0041] a fixing member, the fixing member being used to connect and fix the second heat sink;

[0042] Among them, at least one fastener passes through the fifth connection hole and connects the power module and the first heat sink, at least one fastener passes through and connects the first heat sink and the second heat sink, and the power module and the second heat sink are not connected by fasteners.

[0043] The above technical solution has the following technical effects: at least one fastener is provided through and connects the power module and the first heat sink to secure the power module to the first heat sink, thereby securing the circuit board within the electrical box. At least one fastener is provided through and connects the first heat sink and the second heat sink. By removing the fastener connecting the first heat sink and the second heat sink, the connection between the first heat sink and the second heat sink can be loosened, allowing the electrical box to be separated from the second heat sink, and the electrical box can then be removed to replace and repair the circuit board. This reduces the number of fasteners that need to be removed, and the circuit board can be replaced and repaired without removing the connection between the second heat sink and the fixing member or the fastener between the electrical box and the first heat sink, thereby improving repair efficiency.

[0044] In some embodiments of the present application, the second heat dissipation plate includes a first connection hole, and the first connection hole passes through the second heat dissipation plate;

[0045] The air conditioner outdoor unit includes a second fastener, and the second fastener passes through the first connecting hole to be connected to the fixing member.

[0046] The above technical solution has the following technical effects: the second fastener passes through the first connection hole to be connected to the fixing member, thereby fixing the second heat sink to the fixing member, and the fixing member can fix and support the second heat sink.

[0047] In some embodiments of the present application, further comprising:

[0048] A module bracket is provided between the power module and the circuit board body, and is used to support the power module.

[0049] The above technical solution has the following technical effects: the module bracket is used to support the power module, which can prevent the solder pins of the power module connected to the circuit board body from being damaged by stress, thereby avoiding damage to the power module.

[0050] In some embodiments of the present application, a positioning column is provided at the bottom of the first heat sink, and a positioning hole corresponding to the positioning column is provided on the second heat sink. The positioning column is inserted into the positioning hole to position the first heat sink and the second heat sink.

[0051] The above technical solution has the following technical effects: the positioning column is inserted into the positioning hole to position the first heat sink and the second heat sink, thereby limiting the horizontal freedom of the first heat sink and the second heat sink, and preventing the first heat sink from moving and rotating relative to the second heat sink.

[0052] In some embodiments of the present application, the fifth connection hole passes through the power module;

[0053] The first heat dissipation plate comprises:

[0054] a sixth connecting hole, corresponding to the fifth connecting hole;

[0055] The air-conditioning outdoor unit comprises:

[0056] a fourth fastener, the fourth fastener passing through the fifth connection hole and the sixth connection hole to connect the power module and the first heat sink;

[0057] The first heat dissipation plate comprises: a second fixing hole, the second fixing hole passing through the first heat dissipation plate;

[0058] The second heat dissipation plate includes:

[0059] a third fixing hole, the third fixing hole being arranged corresponding to the second fixing hole;

[0060] The air-conditioning outdoor unit comprises:

[0061] a first fastener, the first fastener passing through the second fixing hole and the third fixing hole to connect the first heat dissipation plate and the second heat dissipation plate;

[0062] The second fixing hole and the fifth connecting hole are not arranged concentrically, and the power module and the second heat sink are not connected by fasteners.

[0063] The above technical solution has the following technical effects: the fourth fastener is provided with the fifth connection hole and the sixth connection hole to connect the power module and the first heat sink, so that the power module contacts the first heat sink, which facilitates the first heat sink to dissipate heat for the power module.

[0064] The first fastener passes through the second fixing hole and the third fixing hole to connect the first heat sink and the second heat sink. The first fastener connects the first heat sink and the second heat sink. A refrigerant pipe is provided on the second heat sink to facilitate the second heat sink to dissipate heat for the first heat sink.

[0065] Among them, the second fixing hole and the fifth connecting hole are not arranged concentrically, and the power module and the second heat sink are not connected by fasteners, so that the second heat sink can be separated from the first heat sink by removing the first fastener, thereby facilitating the disassembly and replacement of the circuit board, making the maintenance of the circuit board more convenient.

[0066] In some embodiments of the present application, the electrical box includes a first fixing hole, the first fixing hole passes through the bottom of the electrical box, and the first fixing hole and the second fixing hole are arranged correspondingly.

[0067] The above technical solution has the following technical effects: the first fastener passes through the first fixing hole, and the second fixing hole and the third fixing hole are penetrated to connect the first heat sink and the second heat sink. The first fixing hole can avoid the first fastener so that the first fastener can connect the first heat sink and the second heat sink.

[0068] In some embodiments of the present application, a flange is provided at an edge of the first fixing hole, the flange is provided at an end of the first fixing hole away from the first heat dissipation plate, and the flange surrounds the edge of the first fixing hole;

[0069] The circuit board body is provided with a first limiting hole corresponding to the flange, and the flange is inserted into the first limiting hole.

[0070] The above technical solution has the following technical effects: the flange is inserted into the first limiting hole to limit the circuit board body, which can facilitate the positioning between the circuit board and the electrical box and improve assembly efficiency.

[0071] In some embodiments of the present application, the shortest distance between the outer surface of the flange and the first limiting hole is defined as a first spacing a, where a≥0.5 mm.

[0072] The above technical solution has the following technical effects: a≥0.5mm, which can ensure that the distance between the outer surface of the flange and the first limiting hole is not too small, facilitate the alignment of the first limiting hole and the flange, and improve the assembly efficiency between the first limiting hole and the flange.

[0073] In some embodiments of the present application, the shortest distance between the outer surface of the positioning post and the positioning hole is defined as a second spacing b, where b≥0.15 mm.

[0074] The above technical solution has the following technical effects: the second distance b ≥ 0.15 mm, which can ensure that the distance between the outer surface of the positioning column and the positioning hole is not too small, facilitates the alignment and assembly of the positioning column and the positioning hole, improves the assembly efficiency between the positioning column and the positioning hole, and thus improves the positioning and installation efficiency between the first heat sink and the second heat sink.

[0075] In some embodiments of the present application, a mounting port is provided on the electrical box, the power module is provided corresponding to the mounting port, the first heat sink is connected to the bottom of the electrical box, and the first heat sink is provided corresponding to the mounting port.

[0076] The above technical solution has the following technical effects: the power module is set corresponding to the installation port, and the first heat sink is set corresponding to the installation port, which facilitates the contact between the bottom of the power module and the first heat sink, and then facilitates the first heat sink to transfer the heat of the power module to the refrigerant radiator.

[0077] In some embodiments of the present application, the receiving groove is located on a side of the second heat dissipation plate away from the first heat dissipation plate.

[0078] The above technical solution has the following technical effects: the receiving groove is located on the side of the second heat sink away from the first heat sink. After the refrigerant tube is pressed, the refrigerant tube may protrude from the receiving groove. If the side of the second heat sink with the receiving groove is connected to the first heat sink, there is a problem of squeezing the refrigerant tube and causing the refrigerant tube to rupture. Therefore, locating the receiving groove on the side of the second heat sink away from the first heat sink can prevent the refrigerant tube from being squeezed and ruptured.

[0079] In some embodiments of the present application, the fixing member is detachably connected to the partition.

[0080] The above technical solution has the following technical effects: the fixing part can be detachably connected to the partition, which facilitates separate processing of the fixing part and the partition, so that the partition has a universal design, so that the partition can be suitable for other models, and the fixing part and the refrigerant radiator can be pre-assembled, thereby reducing the assembly process on the assembly production line and improving assembly efficiency.

[0081] In some embodiments of the present application, the fixing member is integrally formed with the partition.

[0082] The above technical solution has the following technical effects: the fixing part and the partition are integrally formed, which can eliminate the assembly process between the fixing part and the partition, improve the assembly efficiency on the assembly production line, and also help to improve the connection strength between the fixing part and the partition, and improve the supporting effect of the fixing part on the refrigerant radiator.

[0083] In some embodiments of the present application, the fixing member is connected to the electrical box.

[0084] The above technical solution has the following technical effects: the connection between the fixing member and the electrical box can improve the connection strength between the fixing member and the electrical box, making the fixation of the electrical box more stable.

[0085] Additional aspects and advantages of the present invention will be given in part in the following description and will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0086] Figure 1 is a structural diagram of an air conditioner according to one embodiment of the present application;

[0087] Figure 2 is a diagram of a refrigerant circuit of an air conditioner according to one embodiment of the present application;

[0088] Figure 3 is a schematic diagram of the overall structure of an air-conditioning indoor unit according to one embodiment of the present application;

[0089] Figure 4 1 is a schematic diagram of the overall structure of an air-conditioning outdoor unit according to one embodiment of the present application;

[0090] Figure 5 This is a schematic diagram of the electrical box assembly of an air conditioner outdoor unit according to one embodiment of the present application;

[0091] Figure 6 This is a schematic structural diagram of a circuit board of an air-conditioning outdoor unit according to one embodiment of the present application;

[0092] Figure 7 1 is a schematic diagram of the assembly of the electrical box and the first heat sink of the air conditioner outdoor unit according to one embodiment of the present application;

[0093] Figure 8 1 is a schematic diagram of the assembly of a second heat dissipation plate and a fixing member of an air-conditioning outdoor unit according to one embodiment of the present application;

[0094] Figure 9 This is a schematic diagram of the assembly of a first heat sink, an electrical box, and a circuit board of an air conditioner outdoor unit according to one embodiment of the present application;

[0095] Figure 10 1 is a schematic diagram of the assembly of a first heat dissipation plate and a second heat dissipation plate of an air-conditioning outdoor unit according to one embodiment of the present application;

[0096] Figure 11 is a schematic diagram of a first distance of an air-conditioning outdoor unit according to one embodiment of the present application;

[0097] Figure 12 is a schematic diagram of a second distance of an air-conditioning outdoor unit according to one embodiment of the present application;

[0098] Figure 13 This is a schematic structural diagram of an electrical box of an air conditioner outdoor unit according to one embodiment of the present application;

[0099] Figure 14 is an exploded schematic diagram of a second heat dissipation plate and a refrigerant pipe of an air conditioner outdoor unit according to one embodiment of the present application;

[0100] Figure 15 1 is a schematic structural diagram of a first heat dissipation plate of an air-conditioning outdoor unit according to one embodiment of the present application;

[0101] Figure 16 This is a schematic diagram of the installation position of the refrigerant radiator of the air-conditioning outdoor unit according to one embodiment of the present application.

[0102] In the figures above: 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; partition 22; electrical box 23; first fixing hole 231; flange 232; mounting hole 233; second connecting hole 234; first heat sink 24; positioning column 241; second fixing hole 242; third connecting hole Hole 243; sixth connection hole 244; circuit board 25; first limiting hole 251; fourth connection hole 252; power module 26; fifth connection hole 261; fixing member 27; refrigerant radiator 208; second heat sink 28; third fixing hole 281; first connection hole 282; positioning hole 283; accommodating groove 284; refrigerant pipe 29; first fastener 41; second fastener 42; third fastener 43; fourth fastener 44; module bracket 51; mounting plate 61; capacitor module 71. DETAILED DESCRIPTION

[0103] The following will be combined with the accompanying drawings to clearly and completely describe some embodiments of the present disclosure. Obviously, the embodiments described are only some embodiments of the present disclosure, rather than all embodiments. Based on the embodiments provided by the present disclosure, all other embodiments obtained by ordinary technicians in this field are within the scope of protection of the present disclosure.

[0104] This embodiment provides an air conditioner outdoor unit. Figures 1-16 Describe the outdoor unit of the air conditioner.

[0105] The outdoor unit of the air conditioner is a component of the air conditioner, wherein the air conditioner also includes the indoor unit of the air conditioner.

[0106] See also Figures 1-16 The air conditioner 1000 may include an indoor air conditioner unit 100 and an outdoor air conditioner unit 200. The indoor air conditioner unit 100 is installed in an indoor space and the outdoor air conditioner unit 200 is installed in an outdoor space for exchanging heat with an outdoor environment.

[0107] The air-conditioning indoor unit may be a wall-mounted air-conditioning indoor unit or a floor-standing air-conditioning indoor unit. This application will be described using a wall-mounted air-conditioning indoor unit as an example.

[0108] Reference Figure 3 The air conditioning indoor unit 100 includes a main body 300. The main body 300 has a bottom and a top. The height direction of the main body 300 is from the bottom to the top of the main body 300. The main body 300 also has a length direction, wherein 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 that are oppositely arranged. The side of the main body 300 facing the user is the front side of the main body 300, and the front-to-back direction of the main body 300 is from the front side to the rear side of the main body 300.

[0109] The main body 300 may include a housing 3 , which is disposed in an indoor space. The housing 3 has a front side and a rear side that are opposite to each other, wherein a side of the housing 3 facing a user is the front side of the housing 3 .

[0110] The main body 300 may include a heat exchange air inlet 31, which is provided at the top of the housing 3. When cooling or heating, indoor air may enter the interior of the housing 3 through the heat exchange air inlet 31.

[0111] The main body 300 may include a first cavity formed inside the housing 3 . The first cavity is communicated with the heat exchange air inlet 31 , and indoor air may enter the first cavity through the heat exchange air inlet 31 .

[0112] The main body 300 may include a heat exchange outlet 32 ​​disposed at the bottom of the housing 3. The first chamber is connected to the heat exchange inlet 31 and the heat exchange outlet 32. During cooling or heating, indoor air flows into the first chamber through the heat exchange inlet 31 and then into the room through the heat exchange outlet 32.

[0113] The main body 300 may include an indoor heat exchanger 1001 . The indoor heat exchanger 1001 is disposed in the first cavity. The indoor heat exchanger 1001 is configured to exchange heat with the indoor air entering the first cavity.

[0114] In some embodiments, the main body 300 may include a base, which is disposed in the first cavity and has a heat exchange air duct formed in the base.

[0115] In some embodiments, the main body 300 may include a heat exchange fan, which is disposed within the heat exchange duct, with the axial direction of the heat exchange fan being aligned with the longitudinal direction of the main body 300. The heat exchange fan operates to draw indoor air from the heat exchange inlet into the first chamber, then flows through the indoor heat exchanger 1001, through the heat exchange duct, and finally through the heat exchange outlet 32 ​​to the indoor room.

[0116] It can be arranged 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 the air flow and increase the air intake into the room.

[0117] Reference Figure 4-Figure 16 In some embodiments, an air conditioner outdoor unit 200 is disposed in an outdoor space. The air conditioner outdoor unit 200 includes a housing, which constitutes the exterior structure of the air conditioner outdoor unit. The housing 21 includes a housing chamber. In some embodiments, the air conditioner outdoor unit may include a partition 22 disposed within the housing chamber, dividing the housing chamber into a first chamber and a second chamber, with the first chamber and the second chamber being disposed side by side.

[0118] In some embodiments, the first chamber and the second chamber may be in communication.

[0119] 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 disposed opposite each other. The front side of the housing 21 is provided with an outdoor air outlet, and the rear side of the housing 21 is provided with an outdoor air inlet. The outdoor air inlet communicates with the outdoor space and the second chamber, and the outdoor air outlet communicates with the outdoor space and the second chamber. The housing 21 has a bottom and a top, and the height of the housing is the distance from the bottom to the top.

[0120] In some embodiments, the air-conditioning outdoor unit may include a compressor disposed in the first chamber, and the compressor is mounted on the bottom of the air-conditioning outdoor unit.

[0121] In some embodiments, the air conditioner outdoor unit may include an outdoor heat exchanger, a refrigerant circuit is set between the compressor and the outdoor heat exchanger and the indoor heat exchanger, and refrigerant circulates 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 entering the second chamber and flowing through the outdoor heat exchanger 202.

[0122] In some embodiments, the air conditioner outdoor unit may include an outdoor heat exchange fan, which is arranged in the second chamber. When in working state, the outdoor heat exchange fan rotates to drive outdoor air into the shell, so that the outdoor air entering the shell can exchange heat with the outdoor heat exchanger in the outdoor space.

[0123] In some embodiments, the air-conditioning outdoor unit 200 may include a throttling device 204 , which is disposed in the first chamber and configured to expand the liquid refrigerant in a high-temperature and high-pressure state into a liquid refrigerant in a low-pressure state.

[0124] The throttling device 204 can be arranged on the leeward side of the outdoor heat exchanger 202 and can be easily connected to the compressor 201 .

[0125] The air conditioner 1000 performs a refrigeration cycle of the air conditioner 1000 by using the compressor 201, the outdoor heat exchanger 202, the throttling device 204, and the indoor heat exchanger 1001. The refrigeration cycle includes a series of processes involving compression, condensation, expansion, and evaporation, and supplies refrigerant to the conditioned and heat-exchanged air.

[0126] The compressor 201 compresses the low-temperature, low-pressure refrigerant gas and discharges the high-temperature, high-pressure refrigerant gas. The discharged refrigerant gas flows into the outdoor heat exchanger 202.

[0127] The outdoor heat exchanger 202 condenses the compressed refrigerant into a liquid phase, and the heat is released to the surrounding environment through the condensation process.

[0128] 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.

[0129] 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 .

[0130] The indoor heat exchanger 1001 can achieve a cooling effect by utilizing the latent heat of evaporation of the refrigerant to exchange heat with the material to be cooled. In the entire cycle, the air conditioner 1000 can adjust the temperature of the indoor space.

[0131] In both the indoor heat exchanger 1001 and the outdoor heat exchanger 202, one is a condenser and the other is an evaporator. When the indoor heat exchanger 1001 functions as a condenser and the outdoor heat exchanger 202 functions as an evaporator, the air conditioner 1000 functions as a heater in the heating mode. When the indoor heat exchanger 1001 functions as an evaporator and the outdoor heat exchanger 202 functions as a condenser, the air conditioner 1000 functions as a cooler in the cooling mode.

[0132] In some embodiments, the air conditioner outdoor unit may include an electrical box 23 connected to the top of the partition 22. The electrical box 23 is provided with a mounting opening 233, which is set at the bottom of the electrical box 23 and passes through the bottom of the electrical box 23.

[0133] In some embodiments, a portion of the electrical box 23 is located in the first chamber, and another portion of the electrical box 23 is located in the second chamber.

[0134] In some embodiments, the first heat dissipation plate 24 is connected to the bottom of the electrical box 23 , and the first heat dissipation plate 24 is disposed corresponding to the mounting opening 233 .

[0135] In the projection of the housing 21 in the height direction, the first heat dissipation plate 24 can completely cover the installation opening 233 .

[0136] In some embodiments, the air conditioner outdoor unit may include a circuit board connected to the inside of the electrical box 23, and the circuit board may be a printed circuit board.

[0137] In some embodiments, the circuit board may include a circuit board body 25 , which is used to carry electronic components. The circuit board body 25 is arranged corresponding to the mounting opening 233 .

[0138] In some embodiments, the plane where the circuit board body 25 is located is horizontally arranged, and the circuit board can be arranged in the small-sized housing 21. The circuit board can span the first cavity and the second cavity, that is, at least part of the circuit board is arranged in the first cavity, and at least part of the circuit board is arranged in the second cavity, so as to reduce the space occupied in the first cavity.

[0139] “Parallel” includes absolutely parallel and approximately parallel, wherein the acceptable deviation range of approximately parallel may be, for example, a deviation within 5°.

[0140] In some embodiments, the plane where the circuit board body 25 is located is set vertically, and the circuit board can be set in a large-sized shell 21. Since the size of the shell 21 is large, the circuit boards can all be set in the first chamber, and will not have a significant impact on the space occupied by the first chamber. The circuit board body 25 can be set according to the size structure of the air-conditioning outdoor unit.

[0141] “Vertical” includes absolutely vertical and approximately vertical, wherein the acceptable deviation range of approximately vertical may be, for example, a deviation within 5°.

[0142] 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 .

[0143] In some embodiments, when the electrical box 23 is installed in the air conditioner outdoor unit, the power module 26 is downwardly disposed. The power module 26 is disposed below the circuit board body 25 .

[0144] In some embodiments, the housing 21 may include a top cover 201, which is located on the top of the housing 21 and defines the top structure of the housing 21. When the electrical box 23 is installed in the air conditioner outdoor unit, the power module 26 is located on a side of the circuit board body 25 away from the top cover 201.

[0145] In some embodiments, the power module 26 is set corresponding to the mounting port 233, and the power module 26 can be set in the mounting port 233. The first heat sink 24 is set below the power module 26 to facilitate the bottom of the power module 26 to contact the first heat sink 24, thereby facilitating the first heat sink 24 to transfer the heat of the power module 26 to the refrigerant radiator.

[0146] In some embodiments, the air conditioner outdoor unit may include a power module 26 , which is disposed on a circuit board.

[0147] The power module 26 can be an IGBT power module. The IGBT power module generates a certain amount of heat during operation. In the circuit board, the IGBT 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 26.

[0148] In some embodiments, the power module 26 includes a chip, and the periphery of the chip is wrapped with a plastic package.

[0149] In some embodiments, the power module 26 has solder pins, two ends of which are respectively connected to the chip and the circuit board body 25 .

[0150] In some embodiments, the power module 26 has a fifth connection hole 261 , and at least one fastener can pass through the fifth connection hole 261 and the first heat dissipation plate to fix the power module 26 to the first heat dissipation plate 24 .

[0151] In some embodiments, the air conditioner outdoor unit may include a fixing member 27 , which is disposed in the first chamber and connected to the partition 22 . The fixing member 27 is used to connect to the second heat dissipation plate 28 .

[0152] The fixing member 27 can be configured as a rib structure, and the fixing member 27 and the partition plate 22 can be detachably connected.

[0153] In some embodiments, the fixing member 27 is disposed at the angle between the partition 22 and the electrical box 23 .

[0154] In some embodiments, the air conditioner outdoor unit may include a refrigerant radiator 208, which is disposed on top of the fixing member. The refrigerant radiator 208 is used to dissipate heat from the power module.

[0155] In some embodiments, at least one fastener passes through and connects the first heat sink 24 and the refrigerant radiator 208 .

[0156] In some embodiments, at least one fastener passes through and connects the electrical box 23 and the first heat sink 24 , so that the electrical box 23 and the first heat sink 24 are fixed.

[0157] In some embodiments, at least one fastener passes through the fifth connection hole 261 and connects the power module 26 and the first heat sink 24 to fix the power module to the first heat sink 24, so that the circuit board body 25 is fixed in the electrical box 23, and the power module 26 and the second heat sink 28 are not connected by fasteners.

[0158] During installation, at least one fastener passes through the fifth connecting hole 261 and connects the power module 26 and the first heat sink 24, and at least one fastener passes through and connects the first heat sink 24 and the second heat sink 28. The power module 26 and the second heat sink 28 are not connected by fasteners. The first heat sink 24 and the refrigerant radiator 208 can be assembled separately before assembly, which can improve the assembly efficiency of the assembly production line.

[0159] By removing the fasteners connecting the first heat sink 24 and the second heat sink 28 to loosen the connection between the first heat sink 24 and the second heat sink 28, the electrical box 23 is separated from the second heat sink 28, and then the electrical box 23 can be removed to replace and repair the circuit board. There is no need to remove the connection between the second heat sink 28 and the fixing member 27, nor is there any need to remove the fasteners between the electrical box 23 and the first heat sink 24 to replace and repair the circuit board, thereby reducing the number of fasteners that need to be removed and improving maintenance efficiency.

[0160] In some embodiments, the refrigerant radiator 208 may include a second heat sink 28 , which is connected to the top of the fixing member 27 . A receiving groove 284 is provided on the second heat sink 28 , and the fixing member 27 can fix and support the second heat sink 28 .

[0161] In some embodiments, the refrigerant radiator 208 may include a refrigerant pipe 29 . The refrigerant pipe 29 is disposed in the receiving tank 284 . The refrigerant pipe 29 is connected to the refrigerant circuit.

[0162] In some embodiments, at least two receiving grooves 284 may be provided, and the two receiving grooves 284 are arranged in parallel, and a section of the refrigerant pipe 29 passes through the two receiving grooves 284 in sequence.

[0163] When the power module 26 of the circuit board needs to be cooled, the refrigerant in the refrigerant tube 29 can absorb the heat from the second heat sink 28 to lower the temperature of the second heat sink 28. The second heat sink 28 is connected to the first heat sink 24. The second heat sink 28 can absorb the heat from the first heat sink 24. The first heat sink 24 is in contact with the power module 26, and then absorbs the heat of the power module 26 through the first heat sink 24, thereby cooling the power module 26.

[0164] In some embodiments, the receiving groove 284 is located on the side of the second heat sink 28 away from the first heat sink 24. After the refrigerant tube 29 is pressed, the refrigerant tube 29 may protrude from the receiving groove 284. If the side of the second heat sink 28 with the receiving groove 284 is connected to the first heat sink 24, there is a problem of squeezing the refrigerant tube 29 and causing the refrigerant tube 29 to rupture. Therefore, locating the receiving groove 284 on the side of the second heat sink 28 away from the first heat sink 24 can prevent the refrigerant tube 29 from being squeezed and ruptured.

[0165] The power module 26 is disposed at the bottom of the circuit board body 25 , and the first heat sink 24 is disposed at the bottom of the power module 26 . Condensed water formed near the first heat sink 24 due to the lower temperature will not drip onto the circuit board body 25 , thereby preventing damage to the circuit board body 25 and components on the circuit board.

[0166] In some embodiments, at least one fastener passes through and connects the first heat sink 24 and the second heat sink 28. By removing the fastener connecting the first heat sink 24 and the second heat sink 28, the connection between the first heat sink 24 and the second heat sink 28 is loosened, so that the electrical box 23 is separated from the second heat sink 28, and then the electrical box 23 can be removed to replace and repair the circuit board, reducing the number of fasteners that need to be removed. There is no need to remove the connection between the second heat sink 28 and the fixing member 27, nor is there any need to remove the fastener between the electrical box 23 and the first heat sink 24 to replace and repair the circuit board, thereby improving maintenance efficiency.

[0167] In some embodiments, the first heat sink 24 and the second heat sink 28 are detachably connected, so that when the circuit board needs to be repaired, the electrical box 23 and the circuit board can be removed by removing the first heat sink 24 and the second heat sink 28, without the need to remove the second heat sink 28, so as to facilitate replacement and repair of the circuit board, thereby improving the repair efficiency of the circuit board.

[0168] In some embodiments, the air conditioner outdoor unit may include a mounting plate 61 , the mounting plate 61 is connected to the top of the partition 22 , and the electrical box 23 is connected above the mounting plate 61 .

[0169] In some embodiments, the air conditioner outdoor unit may include a module bracket 51, which is disposed between the power module 26 and the circuit board body 25. The module bracket 51 is disposed at the bottom of the circuit board body 25. The module bracket 51 is used to support the power module 26, thereby preventing the solder pins of the power module 26 connected to the circuit board body 25 from being damaged by stress, thereby preventing damage to the power module 26.

[0170] In some embodiments, the circuit board body 25 is fixedly connected in the electrical box 23 , and the circuit board body 25 and the electrical box 23 can be connected by a snap connection or fixedly connected by fasteners.

[0171] In some embodiments, the circuit board body 25 may include a fourth connection hole 252 . The fourth connection hole 252 is provided through the circuit board body 25 . The fourth connection hole 252 is correspondingly provided above the module bracket 51 .

[0172] In some embodiments, the module bracket 51 is hollowed out. In the height direction of the shell 21, the position of the module bracket 51 corresponding to the fourth connection hole 252 is set to a hollow structure to facilitate the fasteners to pass through the circuit board body 25 and the module bracket 51.

[0173] In some embodiments, the power module 26 may include a fifth connection hole 261 , which corresponds to the fourth connection hole 252 , and passes through the power module 26 .

[0174] In some embodiments, the first heat dissipation plate 24 may include a sixth connection hole 244 corresponding to the fifth connection hole 261 .

[0175] In some embodiments, the air conditioner outdoor unit may include a fourth fastener 44, which passes through the fifth connection hole 261 and the sixth connection hole 244 to connect the power module 26 and the first heat sink 24, so that the power module 26 is in contact with the first heat sink 24, which facilitates the first heat sink 24 to dissipate heat from the power module 26.

[0176] The fourth connection hole 252 corresponds to the fifth connection hole 261 . Passing a disassembly tool through the fourth connection hole 252 facilitates fixing or disassembling the fourth fastener 44 , and facilitates disassembly and assembly of the fourth fastener 44 above the circuit board body 25 .

[0177] In some embodiments, the air conditioner outdoor unit may include a fourth fastener 44, which passes through the fourth connecting hole 252 and the module bracket 51. The fourth fastener passes through the fifth connecting hole 261 and the sixth connecting hole 244 to connect the power module 26 and the first heat sink 24, so that the power module 26 is in contact with the first heat sink 24, which facilitates the first heat sink 24 to dissipate heat from the power module 26.

[0178] In some embodiments, the first heat dissipation plate 24 may include a second fixing hole 242 , and the second fixing hole 242 passes through the first heat dissipation plate 24 .

[0179] In some embodiments, the second heat dissipation plate 28 may include third fixing holes 281 , and the third fixing holes 281 are disposed corresponding to the second fixing holes 242 .

[0180] In some embodiments, the third fixing hole 281 may penetrate the second heat dissipation plate 28 .

[0181] In some embodiments, the air conditioner outdoor unit includes a first fastener 41, which passes through a second fixing hole 242 and a third fixing hole 281 to connect the first heat sink 24 and the second heat sink 28. The first fastener 41 connects the first heat sink 24 and the second heat sink 28. A refrigerant pipe is provided on the second heat sink 28, which facilitates the second heat sink 28 to dissipate heat from the first heat sink 24.

[0182] Among them, the second fixing hole 281 and the fifth connecting hole 261 are not arranged concentrically, and the power module 26 and the second heat sink 28 are not connected by fasteners, so that the second heat sink 28 can be separated from the first heat sink 24 by removing the first fastener 41, and then the electrical box 23 can be removed to replace and repair the circuit board. There is no need to remove the connection between the second heat sink 28 and the fixing member 27, nor is there any need to remove the fasteners between the electrical box 23 and the first heat sink 24 to replace and repair the circuit board, which reduces the number of fasteners that need to be removed and improves maintenance efficiency.

[0183] In some embodiments, the fastener for fixing the second heat dissipation plate 28 and the fixing member 27 is defined as a second fastener 42 . The second heat dissipation plate 28 may include a first connection hole 282 , and the first connection hole 282 is set through the second heat dissipation plate 28 .

[0184] The second fastener 42 passes through the first connection hole 282 to be connected to the fixing member 27 , thereby fixing the second heat dissipation plate 28 to the fixing member 27 . The fixing member 27 can fix and support the second heat dissipation plate 28 .

[0185] In some embodiments, the first connection hole 282 can be configured as a countersunk hole so that the second fastener 42 is completely sunken into the first connection hole 282 , preventing the second fastener 42 from protruding from the top of the second heat sink 28 and affecting assembly with the first heat sink 24 .

[0186] In some embodiments, the first heat dissipation plate 24 may include a positioning post 241 , which is disposed at the bottom of the first heat dissipation plate 24 .

[0187] In some embodiments, the second heat sink 28 may include a positioning hole 283 disposed on the second heat sink 28, corresponding to the positioning post 241. The positioning post 241 is inserted into the positioning hole 283 to position the first heat sink 24 and the second heat sink 28, thereby limiting the horizontal freedom of the first heat sink 24 and the second heat sink 28, and preventing the first heat sink 24 from moving and rotating relative to the second heat sink 28.

[0188] In some embodiments, at least two positioning posts 241 are provided on the first heat dissipation plate 24 , and at least two positioning holes 283 corresponding to the second positioning posts 241 are provided on the second heat dissipation plate 28 . The number of positioning holes 283 corresponds to the number of positioning posts 241 .

[0189] The freedom of the first heat dissipation plate 24 is limited by at least two positioning posts 241 and the positioning holes 283 corresponding to the positioning posts 241 , thereby limiting the horizontal movement and rotation of the first heat dissipation plate 24 relative to the second heat dissipation plate 28 .

[0190] In some embodiments, the electrical box 23 may include a first fixing hole 231 , which is disposed through the bottom of the electrical box 23 , and the second fixing hole 242 is disposed corresponding to the first fixing hole 231 .

[0191] In some embodiments, the first fastener 41 passes through the first fixing hole 231, and penetrates the second fixing hole 242 and the third fixing hole 281 to connect the first heat dissipation plate 24 and the second heat dissipation plate 28. The first fixing hole 231 can avoid the first fastener 41 so that the first fastener can connect the first heat dissipation plate 24 and the second heat dissipation plate 28.

[0192] In some embodiments, the diameter of the second fixing hole 242 is smaller than that of the first fixing hole 231 , so that the fastener can pass through the first fixing hole 231 , abut against the upper side of the first heat dissipation plate 24 and tightly connect the first heat dissipation plate 24 and the second heat dissipation plate 28 .

[0193] In some embodiments, the fixing member 27 may include a fourth fixing hole corresponding to the third fixing hole 281. The first fastener 41 may pass through the second fixing hole 242, the third fixing hole 281, and the fourth fixing hole in sequence to securely connect the first heat sink 24, the second heat sink 28, and the fixing member 27.

[0194] In some embodiments, a flange 232 is provided at the edge of the first fixing hole 231 . The flange 232 is provided at one end of the first fixing hole 231 away from the first heat dissipation plate 24 , and surrounds the edge of the first fixing hole 231 .

[0195] The circuit board body 25 is provided with a first limiting hole 251 corresponding to the flange 232. The flange 232 is inserted into the first limiting hole 251 to limit the circuit board body 25, which can facilitate the positioning between the circuit board and the electrical box 23 and improve assembly efficiency.

[0196] The electrical box 23 is provided with at least two first fixing holes 231 , and edges of the at least two first fixing holes 231 are respectively provided with corresponding flanges 232 . The circuit board body 25 is respectively provided with at least two first limiting holes 251 corresponding to the flanges 232 .

[0197] The freedom of the circuit board body 25 is limited by at least two flanges 232 and the first limiting holes 251 corresponding to the flanges 232 , thereby limiting the horizontal movement and rotation of the circuit board body 25 in the electrical box.

[0198] In some embodiments, the flange 232 has a circular cross-section in the horizontal direction.

[0199] In some embodiments, the shortest distance between the outer surface of the flange 232 and the first limiting hole 251 is defined as a first distance a, where a≥0.5 mm and a≤1 mm.

[0200] a has a lower limit value, and a cannot be less than the lower limit value of a. When a is less than the lower limit value of a, the distance between the outer surface of the flange 232 and the first limiting hole 251 will be too small, making it more difficult to align the first limiting hole 251 with the flange 232, affecting the assembly efficiency between the first limiting hole 251 and the flange 232. The lower limit value of a can be 0.5 mm.

[0201] a has an upper limit value, and a cannot be greater than the upper limit value of a. When a is greater than the upper limit value of a, the distance between the outer surface of the flange 232 and the first limiting hole 251 will be too large, so that after the flange 232 is inserted into the first limiting hole 251, the flange 232 may swing in the first limiting hole 251, thereby affecting the fixing effect of the circuit board and the matching connection between other components and the circuit board. The upper limit value of a can be 1mm.

[0202] The preferred value of a can be 0.7 mm, which can ensure an appropriate distance between the outer surface of the flange 232 and the first limiting hole 251, facilitate the alignment of the first limiting hole 251 and the flange 232, and improve the assembly efficiency between the first limiting hole 251 and the flange 232, so that after the flange 232 is inserted into the first limiting hole 251, the flange 232 can be confined in the first limiting hole 251, avoiding the shaking of the circuit board and facilitating the matching connection between other components and the circuit board.

[0203] In some embodiments, the shortest distance between the outer surface of the positioning post 241 and the positioning hole 283 is defined as a second distance b, where b≥0.15 mm and b≤0.3 mm.

[0204] b has a lower limit value, and b cannot be less than the lower limit value of b. When b is less than the lower limit value of b, the distance between the outer surface of the positioning column 241 and the positioning hole 283 will be too small, which is not conducive to the alignment and assembly of the positioning column 241 and the positioning hole 283, affecting the assembly efficiency between the positioning column 241 and the positioning hole 283, and making the positioning and installation efficiency between the first heat dissipation plate 24 and the second heat dissipation plate 28 low. The lower limit value of b can be 0.15mm.

[0205] b has an upper limit value, and b cannot be greater than the upper limit value of b. When b is greater than the upper limit value of b, the distance between the outer surface of the positioning column 241 and the positioning hole 283 will be too large. After the positioning column 241 is inserted into the positioning hole 283, the first heat sink 24 may swing relative to the second heat sink 28, affecting the positioning and installation between the first heat sink 24 and the second heat sink 28. The upper limit value of b can be 0.3 mm.

[0206] The preferred value of b can be 0.2 mm, which can ensure an appropriate distance between the outer surface of the positioning column 241 and the positioning hole 283, and facilitate the alignment and assembly of the positioning column 241 and the positioning hole 283. After the positioning column 241 and the positioning hole 283 are aligned and assembled, the first heat dissipation plate 24 is limited by the positioning column 241, and the first heat dissipation plate 25 will not shake significantly relative to the second heat dissipation plate 28, which can improve the assembly efficiency between the positioning column 241 and the positioning hole 283, thereby improving the positioning and installation efficiency between the first heat dissipation plate 24 and the second heat dissipation plate 28.

[0207] In some embodiments, the first heat dissipation plate 24 and the second heat dissipation plate 28 are positioned by positioning columns 241 and positioning holes 283, and the first fastener 41 is used to penetrate the second fixing hole 242 and the third fixing hole 281 through the first fixing hole 231 to connect the first heat dissipation plate 24 and the second heat dissipation plate 28.

[0208] In some embodiments, the air conditioner indoor unit further includes a capacitor module 71 . The capacitor module 71 is disposed on the top of the circuit board body 25 . The capacitor module 71 and the power module 26 are disposed on opposite sides of the circuit board body 25 .

[0209] Capacitor module 71 filters and smoothes the power supply voltage, providing a stable current for the circuit. Placing capacitor module 71 on top of circuit board body 25 prevents contact with condensed water formed on first heat sink 24, thus preventing damage to capacitor module 71. Placing power module 26 in contact with first heat sink 24 improves the heat dissipation effect of first heat sink 24 on power module 26.

[0210] In some embodiments, the fastener for fixing the electrical box 23 and the first heat sink 24 is defined as a third fastener 43 , and the electrical box 23 may include a second connection hole 234 , which passes through the bottom of the electrical box 23 and is configured as a countersunk hole.

[0211] In some embodiments, the first heat sink 24 may include a third connection hole 243 extending through the first heat sink 24 and corresponding to the second connection hole 234. The third fastener 43 extends through the second and third connection holes 234, 243, to connect the electrical box 23 to the first heat sink 24.

[0212] In some embodiments, the fixing member can be detachably connected to the partition, which can facilitate separate processing of the fixing member 27 and the partition 22, so that the partition 22 has a universal design, so that the partition 22 can be suitable for other models, and the fixing member 27 and the refrigerant radiator 208 can be pre-assembled, thereby reducing the assembly process on the assembly production line and improving assembly efficiency.

[0213] In some embodiments, the fixing member 27 and the partition 22 are integrally formed, which can eliminate the assembly process between the fixing member 27 and the partition 22, improve the assembly efficiency on the assembly production line, and also help to improve the connection strength between the fixing member 27 and the partition 22, thereby improving the supporting effect of the fixing member 27 on the refrigerant radiator 208.

[0214] In some embodiments, the fixing member 27 is connected to the electrical box 23, which can improve the connection strength between the fixing member 27 and the electrical box 23, making the fixation of the electrical box 23 more stable.

[0215] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation to the present invention.

[0216] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection, or communication; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0217] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are illustrative and cannot be understood as limitations on the present invention. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present invention.

[0218] In this utility model, the terms "first," "second," and "third" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of the technical features indicated. Therefore, a feature specified as "first," "second," or "third" may explicitly or implicitly include one or more of the features.

[0219] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0220] The use of "adapted to" or "configured to" herein is intended to be open and inclusive language that does not exclude devices adapted or configured to perform additional tasks or steps.

[0221] As used herein, "about," "substantially," or "approximately" includes the stated value and an average value that is within an acceptable range of deviation from the particular value as determined by one of ordinary skill in the art taking into account the measurements in question and the errors associated with the measurement of the particular quantity (i.e., the limitations of the measurement system).

[0222] As used herein, "parallel", "vertical", and "equal" include the situations described and situations similar to the situations described, and the range of the similar situations is within an acceptable deviation range, wherein the acceptable deviation range is determined by a person of ordinary skill in the art taking into account the measurement in question and the errors associated with the measurement of the specific quantity (i.e., the limitations of the measurement system). For example, "parallel" includes absolute parallelism and approximate parallelism, wherein the acceptable deviation range of approximate parallelism can be, for example, a deviation within 5°; "vertical" includes absolute vertical and approximate vertical, wherein the acceptable deviation range of approximate vertical can also be, for example, a deviation within 5°. "Equal" includes absolute equality and approximate equality, wherein the acceptable deviation range of approximate equality can be, for example, that the difference between the two equals is less than or equal to 5% of either one.

[0223] In the present invention, the terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples" mean that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic expressions 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 any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and the features of different embodiments or examples without contradiction.

[0224] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are illustrative and cannot be understood as limitations on the present invention. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. An air conditioner outdoor unit, characterized in that: include: a housing having an accommodating cavity therein; a partition, disposed in the accommodating cavity, the partition dividing the accommodating cavity into a first chamber and a second chamber; a compressor disposed in the first chamber; an outdoor heat exchanger, wherein a refrigerant circuit is provided between the outdoor heat exchanger, the compressor and the indoor heat exchanger; an outdoor heat exchange fan disposed in the second chamber, wherein 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; an electrical box, disposed on top of the partition; A circuit board is arranged inside the electrical box, and the circuit board includes: a circuit board body and a power module, Wherein, the circuit board body is used to carry electronic components, and the circuit board body is arranged horizontally; The power module is connected to the circuit board body, the power module is arranged downward, and the power module has a solder foot and a fifth connection hole; a first heat dissipation plate, the first heat dissipation plate being arranged below the power module and in contact with the power module; A refrigerant radiator is provided at the bottom of the first heat sink, and is used to dissipate heat from the power module; the refrigerant radiator includes: a second heat sink and a refrigerant pipe, The second heat sink is located below the first heat sink and is connected to the first heat sink, and a receiving groove is provided on the second heat sink; The refrigerant pipe is arranged in the receiving tank, and the refrigerant pipe is connected to the refrigerant circuit; a fixing member, the fixing member being used to connect and fix the second heat sink; Among them, at least one fastener passes through the fifth connection hole and connects the power module and the first heat sink, at least one fastener passes through and connects the first heat sink and the second heat sink, and the power module and the second heat sink are not connected by fasteners.

2. An air conditioner outdoor unit, characterized in that: include: A housing, comprising a top cover, the top cover being located on the top of the housing, and an accommodating cavity being provided in the housing; a partition, disposed in the accommodating cavity, the partition dividing the accommodating cavity into a first chamber and a second chamber; a compressor disposed in the first chamber; an outdoor heat exchanger, wherein a refrigerant circuit is provided between the outdoor heat exchanger, the compressor and the indoor heat exchanger; an outdoor heat exchange fan disposed in the second chamber, wherein 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; an electrical box, disposed on top of the partition; A circuit board is disposed inside the electrical box, and the circuit board includes: A circuit board body, used for carrying electronic components, wherein the circuit board body is arranged horizontally; a power module connected to the circuit board body, the power module being located on a side of the circuit board body away from the top cover, and having a solder foot and a fifth connection hole; a first heat dissipation plate, the first heat dissipation plate being arranged below the power module and in contact with the power module; A refrigerant radiator is provided at the bottom of the first heat sink, and is used to dissipate heat from the power module; the refrigerant radiator includes: a second heat dissipation plate, located below the first heat dissipation plate and connected to the first heat dissipation plate, wherein the second heat dissipation plate is provided with a receiving groove; a refrigerant pipe, disposed in the receiving tank, the refrigerant pipe being connected to the refrigerant circuit; a fixing member, the fixing member being used to connect and fix the second heat sink; Among them, at least one fastener passes through the fifth connection hole and connects the power module and the first heat sink, at least one fastener passes through and connects the first heat sink and the second heat sink, and the power module and the second heat sink are not connected by fasteners.

3. The air conditioner outdoor unit according to claim 1 or 2, characterized in that: The second heat dissipation plate includes a first connection hole, and the first connection hole passes through the second heat dissipation plate; The air conditioner outdoor unit includes a second fastener, and the second fastener passes through the first connecting hole to be connected to the fixing member.

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

5. The air conditioner outdoor unit according to claim 1 or 2, characterized in that: A positioning post is provided at the bottom of the first heat dissipation plate, and a positioning hole corresponding to the positioning post is provided on the second heat dissipation plate. The positioning post is inserted into the positioning hole to position the first heat dissipation plate and the second heat dissipation plate.

6. The air conditioner outdoor unit according to claim 5, characterized in that: The shortest distance between the outer surface of the positioning post and the positioning hole is defined as a second spacing b, where b≥0.15 mm and b≤0.3 mm.

7. The air conditioner outdoor unit according to claim 1 or 2, characterized in that: The electrical box is provided with a mounting opening, the power module is provided corresponding to the mounting opening, the first heat sink is connected to the bottom of the electrical box, and the first heat sink is provided corresponding to the mounting opening.

8. The air conditioner outdoor unit according to claim 1 or 2, characterized in that: The receiving groove is located on a side of the second heat dissipation plate away from the first heat dissipation plate.

9. The air conditioner outdoor unit according to claim 1 or 2, characterized in that: The fixing member is detachably connected to the partition.

10. The air conditioner outdoor unit according to claim 1 or 2, characterized in that: The fixing member and the partition are integrally formed.

11. The air conditioner outdoor unit according to claim 1 or 2, characterized in that: The fixing member is connected to the electrical box.

12. The air conditioner outdoor unit according to claim 1 or 2, characterized in that: The fifth connection hole passes through the power module; The first heat dissipation plate comprises: a sixth connecting hole, corresponding to the fifth connecting hole; The air-conditioning outdoor unit comprises: a fourth fastener, the fourth fastener passing through the fifth connection hole and the sixth connection hole to connect the power module and the first heat sink; The first heat dissipation plate comprises: a second fixing hole, the second fixing hole passing through the first heat dissipation plate; The second heat dissipation plate includes: a third fixing hole, the third fixing hole being arranged corresponding to the second fixing hole; The air-conditioning outdoor unit comprises: a first fastener, the first fastener passing through the second fixing hole and the third fixing hole to connect the first heat dissipation plate and the second heat dissipation plate; The second fixing hole and the fifth connecting hole are not arranged concentrically, and the power module and the second heat sink are not connected by fasteners.

13. The air conditioner outdoor unit according to claim 12, characterized in that: The electrical box includes a first fixing hole, which passes through the bottom of the electrical box. The first fixing hole and the second fixing hole are correspondingly arranged.

14. The air conditioner outdoor unit according to claim 13, wherein: A flange is provided at an edge of the first fixing hole, the flange being provided at an end of the first fixing hole away from the first heat dissipation plate, and the flange surrounds the edge of the first fixing hole; The circuit board body is provided with a first limiting hole corresponding to the flange, and the flange is inserted into the first limiting hole.

15. The air conditioner outdoor unit according to claim 14, characterized in that: The shortest distance between the outer surface of the flange and the first limiting hole is defined as a first spacing a, where a≥0.5 mm and a≤1 mm.

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