Air conditioner outdoor unit and air conditioner

Abstract

Disclosed are an air conditioner outdoor unit (200) and an air conditioner (1000). The air conditioner outdoor unit (200) comprises: a housing (21); a partition plate (22); a compressor (201); an outdoor heat exchange fan; an outdoor heat exchanger (202); an electric box (23) connected to the top of the partition plate (22), the electric box (23) being provided with a mounting opening (233); a circuit board connected to the inside of the electric box (23); a power module (26); a first heat dissipation plate (24) arranged corresponding to the mounting opening (233), wherein the power module (26) is arranged at the top of the first heat dissipation plate (24) and is in contact with the first heat dissipation plate (24); a refrigerant radiator (208) configured to dissipate heat for the power module (26); and a fixing member (27) arranged in a first chamber, the fixing member (27) being connected to the partition plate (22). The refrigerant radiator (208) comprises: a second heat dissipation plate (28) connected to the top of the fixing member (27), the second heat dissipation plate (28) being provided with an accommodating groove (284); and a refrigerant tube (29) provided in the accommodating groove (284), the refrigerant tube (29) being in communication with a refrigerant loop; and at least one fastener passes through and connects the power module (26) and the first heat dissipation plate (24), at least one fastener passes through and connects the first heat dissipation plate (24) and the second heat dissipation plate (28), and the circuit board and the second heat dissipation plate (28) are not connected by means of a fastener, so as to facilitate disassembly and maintenance of the circuit board.

Description

outdoor unit of air conditioner and air conditioner

[0001] This disclosure claims priority to Chinese Patent Publication No. 202422136359.3, filed on August 30, 2024; Chinese Patent Publication No. 202422616724.0, filed on October 29, 2024, the entire contents of which are incorporated herein by reference; and Chinese Patent Publication No. 202422640133.7, filed on October 30, 2024, the entire contents of which are incorporated herein by reference. Technical Field

[0002] This disclosure relates to the field of air conditioning technology, and in particular to an outdoor unit and an air conditioner. Background Technology

[0003] The outdoor unit of the air conditioner includes a casing, and a partition is provided inside the casing to divide the interior of the casing into a first chamber and a second chamber. The first chamber is equipped with a compressor, and the second chamber is equipped with an outdoor heat exchange fan and an outdoor heat exchanger. A refrigerant circuit is provided between the compressor and the outdoor heat exchanger. Outdoor air is driven into the casing by the outdoor heat exchange fan, exchanges heat with the outdoor heat exchanger, and is then blown outdoors.

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

[0005] The refrigerant pipe is located above the power module, which means that the refrigerant pipe module needs to be removed when disassembling and repairing the circuit board, making it inconvenient to repair the circuit board.

[0006] Public content

[0007] This disclosure aims to improve the problem that when disassembling and repairing circuit boards in outdoor air conditioning units, it is necessary to remove the refrigerant pipe module, which makes it inconvenient to repair the circuit boards.

[0008] This disclosure provides some embodiments of an air conditioner outdoor unit, which includes:

[0009] The housing has an internal cavity;

[0010] A partition is disposed within the accommodating cavity, the partition dividing the accommodating cavity into a first chamber and a second chamber;

[0011] The compressor is located within the first chamber;

[0012] An outdoor heat exchanger, wherein a refrigerant circuit is provided between the outdoor heat exchanger and the compressor and the indoor heat exchanger;

[0013] An outdoor heat exchange fan is installed in the second chamber; the outdoor heat exchange fan rotates to drive outdoor air into the interior of the housing, so that the outdoor air exchanges heat with the outdoor heat exchanger and is then blown to the outside.

[0014] An electrical box is disposed on top of the partition;

[0015] A circuit board, disposed inside the electrical assembly box, the circuit board comprising:

[0016] The circuit board body is configured to carry electronic components, and the circuit board body is horizontally positioned.

[0017] The power module is connected to the circuit board body, and the electrical box is installed in the outdoor unit of the air conditioner with the power module facing downwards;

[0018] A first heat sink is disposed below the power module and in contact with the power module.

[0019] A refrigerant radiator is disposed at the bottom of the first heat sink plate, and the refrigerant radiator is configured to dissipate heat from the power module; the refrigerant radiator includes:

[0020] The second heat sink is located below the first heat sink and is connected to the first heat sink. The second heat sink is provided with a receiving groove.

[0021] A refrigerant pipe is disposed in the receiving tank and is connected to the refrigerant circuit.

[0022] A fastener connected to the partition plate, the fastener being configured to connect and fix the second heat sink plate;

[0023] In this configuration, at least one fastener passes through and connects the power module and the first heat sink, and at least one fastener passes through and connects the first heat sink and the second heat sink, while the power module and the second heat sink are not connected by fasteners.

[0024] In this disclosure, at least one fastener passes through and connects the power module and the first heat sink to fix the power module to the first heat sink, thereby securing the circuit board within the electrical assembly box. At least one fastener also passes through and connects the first and second heat sinks. By disassembling the fasteners connecting the first and second heat sinks, the connection between the first and second heat sinks can be loosened, allowing the electrical assembly box to separate from the second heat sink. This enables the electrical assembly box to be disassembled for circuit board replacement and repair. This reduces the number of fasteners that need to be removed, eliminates the need to remove the connection between the second heat sink and the fixing components, and eliminates the need to remove the fasteners between the electrical assembly box and the first heat sink to replace and repair the circuit board, thus improving repair efficiency. Attached Figure Description

[0025] Figure 1 is a structural diagram of an air conditioner according to one embodiment of the present disclosure.

[0026] Figure 2 is a diagram of the refrigerant circuit of an air conditioner according to one embodiment of the present disclosure.

[0027] Figure 3 is a schematic diagram of the overall structure of an air conditioner indoor unit according to one embodiment of the present disclosure.

[0028] 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 disclosure.

[0029] Figure 5 is a schematic diagram of the electrical assembly box of an air conditioner outdoor unit according to one embodiment of the present disclosure.

[0030] Figure 6 is a schematic diagram of the circuit board of an air conditioner outdoor unit according to one embodiment of the present disclosure.

[0031] Figure 7 is a schematic diagram of the assembly of the electrical box and the first heat sink of an air conditioner outdoor unit according to one embodiment of the present disclosure.

[0032] Figure 8 is a schematic diagram of the assembly of the second heat sink plate and the fixing member of an air conditioner outdoor unit according to one embodiment of the present disclosure.

[0033] Figure 9 is a schematic diagram of the assembly of the first heat sink plate of the outdoor unit of an air conditioner with the electrical assembly box and the circuit board according to one embodiment of the present disclosure.

[0034] Figure 10 is a schematic diagram of the assembly of the first heat sink and the second heat sink of an outdoor unit of an air conditioner according to one embodiment of the present disclosure.

[0035] Figure 11 is a schematic diagram of the first distance of an outdoor unit of an air conditioner according to one embodiment of the present disclosure.

[0036] Figure 12 is a schematic diagram of the second distance of an air conditioner outdoor unit according to one embodiment of the present disclosure.

[0037] Figure 13 is a schematic diagram of the electrical assembly box of an air conditioner outdoor unit according to one embodiment of the present disclosure.

[0038] Figure 14 is an exploded view of the second heat sink and refrigerant pipe of an outdoor unit of an air conditioner according to one embodiment of the present disclosure.

[0039] Figure 15 is a schematic diagram of the structure of the first heat sink of an outdoor unit of an air conditioner according to one embodiment of the present disclosure.

[0040] Figure 16 is a schematic diagram of the installation position of the refrigerant radiator of an outdoor unit of an air conditioner according to one embodiment of the present disclosure.

[0041] Figure 17 is a schematic diagram of the electrical assembly box of an air conditioner outdoor unit according to one embodiment of the present disclosure.

[0042] Figure 18 is a schematic diagram of the electrical assembly box of an air conditioner outdoor unit according to one embodiment of the present disclosure.

[0043] Figure 19 is a schematic diagram showing the disassembled electrical box and refrigerant radiator of an outdoor air conditioner unit according to one embodiment of the present disclosure.

[0044] Figure 20 is a partial structural schematic diagram of the electrical assembly box of an air conditioner outdoor unit according to one embodiment of the present disclosure.

[0045] Figure 21 is a structural schematic diagram of the assembly of the mounting parts and electrical box of an air conditioner outdoor unit according to one embodiment of the present disclosure.

[0046] Figure 22 is a schematic diagram showing the separation of the electrical assembly box and the first heat sink of an air conditioner outdoor unit according to one embodiment of the present disclosure.

[0047] Figure 23 is a schematic diagram showing the disassembled fasteners and refrigerant radiator of an outdoor air conditioning unit according to one embodiment of the present disclosure.

[0048] Figure 24 is a schematic diagram of the refrigerant radiator of an outdoor unit of an air conditioner according to one embodiment of the present disclosure.

[0049] Figure 25 is a schematic diagram of the circuit board assembly of an outdoor air conditioner unit according to another embodiment of the present disclosure.

[0050] Figure 26 is a schematic diagram of the refrigerant radiator of an outdoor unit of an air conditioner according to another embodiment of the present disclosure.

[0051] Figure 27 is a schematic diagram showing the disassembled circuit board and refrigerant radiator of an outdoor air conditioner unit according to another embodiment of the present disclosure.

[0052] Figure 28 is a schematic diagram of the assembly of the circuit board of the outdoor unit of an air conditioner and the first radiator according to another embodiment of the present disclosure.

[0053] Figure 29 is a schematic diagram of the assembly of the refrigerant radiator and fixing parts of an outdoor unit of an air conditioner according to another embodiment of the present disclosure.

[0054] Figure 30 is a schematic diagram of the assembly of the circuit board and mounting components of an air conditioner outdoor unit according to another embodiment of the present disclosure.

[0055] Figure 31 is a second assembly diagram of the circuit board and mounting components of an outdoor air conditioning unit according to another embodiment of the present disclosure. Detailed Implementation

[0056] The following description, in conjunction with the accompanying drawings, clearly and completely describes some embodiments of this disclosure. Obviously, the described embodiments are merely some, not all, of the embodiments of this disclosure. All other embodiments obtained by those skilled in the art based on the embodiments provided in this disclosure are within the scope of protection of this disclosure.

[0057] Referring to Figures 1 and 2, this disclosure provides an air conditioner 1000, which may include an indoor unit 100 and an outdoor unit 200. The indoor unit 100 is installed in an indoor space. The outdoor unit 200 is installed in an outdoor space and is configured for heat exchange with the outdoor environment. The indoor unit 100 and the outdoor unit 200 are connected by a pipe 400. The indoor unit can be a ducted air conditioner, a wall-mounted air conditioner, or a floor-standing air conditioner, etc. This disclosure mainly uses a wall-mounted air conditioner as an example.

[0058] In some embodiments, referring to FIG3, the indoor unit 100 of the air conditioner may include a main body 300, which 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. The main body 300 also has a front side and a rear side disposed opposite to each other, wherein the side of the main body 300 facing the user is the front side of the main body 300, and the front side to the rear side of the main body 300 is the front-rear direction of the main body 300.

[0059] In some embodiments, referring to FIG3, the main body 300 may include a housing 3, which may be disposed in an indoor space. The housing 3 has a front side and a rear side disposed opposite to each other, wherein the side of the housing 3 facing the user is the front side of the housing 3. The main body 300 may include a heat exchange air inlet 31, which is disposed at the top of the housing 3. During cooling or heating, indoor air can enter the interior of the housing 3 through the heat exchange air inlet 31. The main body 300 may include a first cavity, which is formed inside the housing 3 and is connected to the heat exchange air inlet 31. Indoor air can enter the first cavity through the heat exchange air inlet 31. The main body 300 may include a heat exchange air outlet 32, which is disposed at the bottom of the housing 3. The first cavity is connected to both the heat exchange air inlet 31 and the heat exchange air outlet 32. During cooling or heating, indoor air flows into the first cavity through the heat exchange air inlet 31 and flows into the room through the heat exchange air outlet 32.

[0060] In some embodiments, referring to FIG2, the main body 300 may include an indoor heat exchanger 1001 disposed within a first cavity and configured to exchange heat with indoor air entering the first cavity. The main body 300 may include a base disposed within the first cavity, and a heat exchange duct is formed within the base. The main body 300 may include a heat exchange fan disposed within the heat exchange duct, with the fan's axis aligned with the length direction of the main body 300. By operating the heat exchange fan, indoor air is introduced into the first cavity through a heat exchange inlet, then flows through the indoor heat exchanger 1001, through the heat exchange duct, and finally through a heat exchange outlet 32 ​​before exiting into the room.

[0061] In some embodiments, the heat exchange fan may be located on the leeward side of the indoor heat exchanger 1001 to reduce the resistance of the indoor heat exchanger 1001 to airflow and increase the air intake into the room.

[0062] In some embodiments, the outdoor unit 200 of the air conditioner can be installed in an outdoor space. Referring to FIG4, the outdoor unit 200 of the air conditioner includes a housing 21, which constitutes the external structure of the outdoor unit 200 of the air conditioner, and a receiving cavity is provided inside the housing 21.

[0063] In some embodiments, referring to Figure 5 or Figure 17, the outdoor unit 200 of the air conditioner may include a partition 22. In this embodiment, the partition 22 is disposed within a receiving cavity, dividing the receiving cavity into a first chamber and a second chamber, which are respectively configured to accommodate corresponding components. In some embodiments, the first chamber and the second chamber are arranged side-by-side. The first chamber and the second chamber may communicate with each other.

[0064] 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 to each other. The outdoor air outlet is disposed on the front side of the housing 21, and the outdoor air inlet is disposed on the rear side of the housing 21. 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 distance from the bottom to the top of the housing 21 is the height direction of the housing 21.

[0065] In some embodiments, referring to FIG2, the outdoor unit 200 of the air conditioner may include a compressor 201 disposed in a first chamber and installed at the bottom of the outdoor unit 200.

[0066] In some embodiments, referring to FIG2, the outdoor unit 200 of the air conditioner may include an outdoor heat exchanger 202. A refrigerant circuit is provided between the compressor 201, the outdoor heat exchanger 202, and the indoor heat exchanger 1001. Refrigerant flows through the indoor heat exchanger 1001, the outdoor heat exchanger 202, and the refrigerant circuit. The refrigerant circuit is sequentially connected to the compressor 201, the outdoor heat exchanger 202, and the indoor heat exchanger 1001. The refrigerant can flow through the compressor 201, the outdoor heat exchanger 202, and the indoor heat exchanger 1001 and then flow back into the compressor 201. The refrigerant in the outdoor heat exchanger 202 can be configured to exchange heat with the air entering the second chamber and flowing through the outdoor heat exchanger 202.

[0067] In some embodiments, the outdoor unit 200 of the air conditioner may include an outdoor heat exchange fan, which may be disposed in the second chamber. The outdoor heat exchange fan drives outdoor air into the interior of the casing 21, where it exchanges heat with the outdoor heat exchanger 202 and is then blown outdoors. In other words, the rotation of the outdoor heat exchange fan, i.e., the outdoor heat exchange fan rotating in the working state, draws outdoor air into the interior of the casing 21, allowing the outdoor air to exchange heat with the outdoor heat exchanger before being blown outdoors.

[0068] In some embodiments, referring to FIG2, the outdoor unit 200 of the air conditioner may include a throttling device 204 disposed in a first chamber and configured to expand the high-temperature, high-pressure liquid refrigerant into a low-pressure liquid refrigerant. The throttling device 204 may be disposed on the leeward side of the outdoor heat exchanger 202 for easy connection to the compressor 201.

[0069] In this disclosure, the air conditioner 1000 performs a refrigeration cycle 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 supplying refrigerant to the conditioned and heat-exchanged air.

[0070] In this system, compressor 201 compresses the refrigerant gas at low temperature and low pressure, discharging it at high temperature and high pressure. The discharged refrigerant gas flows into outdoor heat exchanger 202. Outdoor heat exchanger 202 condenses the compressed refrigerant into a liquid phase, releasing heat to the surrounding environment through the condensation process. Throttling device 204 expands the high-temperature, high-pressure liquid refrigerant condensed in outdoor heat exchanger 202 into a low-pressure liquid refrigerant. Indoor heat exchanger 1001 evaporates the refrigerant that has expanded in throttling device 204, returning the low-temperature, low-pressure refrigerant gas to compressor 201. Indoor heat exchanger 1001 achieves a cooling effect by utilizing the latent heat of refrigerant evaporation to exchange heat with the material being cooled. Throughout the cycle, air conditioner 1000 regulates the temperature of the indoor space.

[0071] Of 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 is used as a condenser and the outdoor heat exchanger 202 is used as an evaporator, the air conditioner 1000 is used as a heater in 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 is used as a cooler in cooling mode.

[0072] In some embodiments, referring to FIG5, the outdoor unit of the air conditioner may include an electrical mounting box 23, which may be connected to the top of the partition 22. Referring to FIG13, the electrical mounting box 23 is provided with a mounting port 233, which is located at the bottom of the electrical mounting box 23 and extends through the bottom of the electrical mounting box 23.

[0073] In some embodiments, as shown in Figures 5, 9, and 10, a portion of the electrical assembly box 23 may be located within the first chamber, and another portion may be located within the second chamber, thereby reducing the space occupied within the first chamber. In some embodiments, as shown in Figures 7, 9, and 13, a first heat sink 24 may be connected to the bottom of the electrical assembly box 23, and the first heat sink 24 is disposed corresponding to the mounting port 233. Projected along the height direction of the housing 21, the first heat sink 24 may completely cover the mounting port 233 to seal the mounting port 233 and ensure the sealing of the bottom of the electrical assembly box 23.

[0074] In some embodiments, the outdoor unit 200 of the air conditioner may include a circuit board connected inside the electrical enclosure 23. Referring to Figure 6 or Figure 19, the circuit board may include a circuit board body 25, which may be disposed within the electrical enclosure 23. The circuit board body 25 may be a printed circuit board. The circuit board may also include electronic components carried on the circuit board body 25.

[0075] In some embodiments, as shown in Figures 5 and 10, the circuit board body 25 is horizontally positioned. The circuit board body 25 may be positioned corresponding to the mounting port 233, through which heat generated on the circuit board body 25 can be dissipated outward.

[0076] In some embodiments, the plane on which the circuit board body 25 is located is horizontally arranged, the circuit board can be disposed in the small-sized housing 21, and the circuit board can span the first chamber and the second chamber, that is, at least part of the circuit board is disposed in the first chamber and at least part of the circuit board is disposed in the second chamber, so as to reduce the space occupied in the first chamber.

[0077] In some embodiments, referring to FIG6, the circuit board may include a power module 26 connected to the circuit board body 25. With the electrical box 23 installed in the outdoor unit 200 of the air conditioner, the power module 26 is positioned downwards. The power module 26 is positioned below the circuit board body 25, which brings it closer to the first heat sink 24, facilitating heat dissipation.

[0078] In this disclosure, 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. The condensate formed near the first heat sink 24 due to the low temperature will not drip onto the circuit board body 25, which can avoid or improve the situation of damage to the circuit board body 25 and the components on the circuit board body 25.

[0079] In some embodiments, referring to FIG4, the housing 21 may include a top cover 201 located on top of the housing 21, defining a top structure for the housing 21. With the electrical box 23 installed in the outdoor unit 200 of the air conditioner, the power module 26 is located on the side of the circuit board body 25 away from the top cover 201. This allows the power module 26 to be positioned closer to the first heat sink 24, facilitating heat dissipation for the power module 26.

[0080] In some embodiments, as shown in Figures 6, 9, and 13, the power module 26 is disposed corresponding to the mounting port 233. The power module 26 can be disposed within the mounting port 233, and the first heat sink 24 is disposed below the power module 26, so that the bottom of the power module 26 can 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, thereby improving the heat dissipation efficiency of the power module 26.

[0081] In some embodiments, the power module 26 has a chip, which is encapsulated in a plastic package. The power module 26 has pins. The two ends of the pins of the power module 26 are connected to the chip and the circuit board body 25, respectively.

[0082] In some embodiments, the power module 26 may be configured as an IGBT (Insulated Gate Bipolar Transistor) power module. IGBT power modules generate heat during operation, and are one of the main heat sources on the circuit board. To ensure the normal operation and reliability of the circuit board, heat dissipation measures are required for the power module 26.

[0083] It should be noted that the power module 26 is not limited to IGBTs, but can also be a power structure such as a silicon bridge diode.

[0084] In some embodiments, referring to FIG5, the outdoor unit 200 of the air conditioner may include a fixing member 27 disposed in the first cavity, and the fixing member 27 may be connected to the partition 22. The fixing member 27 may be configured as a rib structure, and the fixing member 27 and the partition 22 are detachably connected to facilitate maintenance or replacement and reduce costs. The fixing member 27 is disposed at the angle between the partition 22 and the electrical assembly box 23 to ensure the connection stability between the partition 22 and the electrical assembly box 23.

[0085] In some embodiments, referring to Figures 5, 8, and 14, the outdoor unit 200 of the air conditioner may include a refrigerant radiator 208 disposed on top of the mounting member 27. The refrigerant radiator 208 is configured to dissipate heat from the power module 26.

[0086] In some embodiments, at least one fastener passes through and connects the first heat sink 24 and the refrigerant radiator 208. At least one fastener passes through and connects the electrical assembly box 23 and the first heat sink 24, thereby fixing the electrical assembly box 23 to the first heat sink 24. At least one fastener passes through and connects the power module 26 and the first heat sink 24, thereby fixing the power module 26 to the first heat sink 24, thereby fixing the circuit board body 25 inside the electrical assembly box 23.

[0087] In this disclosure, the connection between the first heat sink 24 and the refrigerant radiator 208 can be loosened by disassembling the fasteners connecting the first heat sink 24 and the refrigerant radiator 208, allowing the electrical assembly box 23 to be separated from the refrigerant radiator 208. This enables the electrical assembly box 23 to be disassembled for replacement and repair of 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 refrigerant radiator 208 and the fixing member 27, or without removing the fasteners between the electrical assembly box 23 and the first heat sink 24. This reduces the number of fasteners that need to be removed and improves repair efficiency.

[0088] In some embodiments, referring to FIG14, the refrigerant radiator 208 may include a second heat sink 28, which is located below and connected to the first heat sink 24. The second heat sink 28 has a receiving groove 284. Referring to FIG8, the second heat sink 28 is connected to the top of a fixing member 27. The fixing member 27 serves to fix and support the second heat sink 28.

[0089] In some embodiments, the power module 26 has pins on both sides in its width direction, and the first heat sink 24 has a boss on the side away from the second heat sink 28, on which the power module 26 can be mounted. The surface of the power module 26 in contact with the boss is the first surface, and the surface of the boss in contact with the power module 26 is the second surface. The dimension of the first surface in the width direction of the power module 26 is larger than the dimension of the second surface in the width direction of the power module 26, and the two edges of the first surface in the width direction of the power module 26 protrude correspondingly relative to the two edges of the second surface in the width direction of the power module 26, so as to ensure a safe electrical clearance between the pins of the first heat sink 24 and the power module 26.

[0090] In some embodiments, while ensuring a safe electrical clearance between the pins of the first heat sink 24 and the power module 26, the distance between the two edges of the first surface in the width direction of the power module 26 and the corresponding protrusions of the two edges of the second surface in the width direction of the power module 26 can be less than 2mm, so as to ensure heat dissipation efficiency.

[0091] In some embodiments, the first heat sink 24 can be omitted, allowing the power module 26 to be directly mounted on the second heat sink 28 to reduce costs.

[0092] In some embodiments, referring to Figures 8 and 14, the refrigerant radiator 208 may include a refrigerant pipe 29 disposed within a receiving groove 284 and connected to a refrigerant circuit. Referring to Figure 14, at least two receiving grooves 284 may be provided, arranged side-by-side. A section of refrigerant pipe 29 passes through both receiving grooves 284 sequentially, thereby increasing the contact area between the refrigerant pipe 29 and the second heat sink 28, thus improving heat dissipation efficiency.

[0093] When it is necessary to cool down the power module 26 on the circuit board, the refrigerant in the refrigerant pipe 29 can absorb the heat from the second heat sink 28 to reduce the temperature of the second heat sink 28. The second heat sink 28 is connected to the first heat sink 24 and can absorb the heat from the first heat sink 24. The first heat sink 24 is in contact with the power module 26, and thus the heat from the power module 26 is absorbed through the first heat sink 24 to cool down the power module 26.

[0094] 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. Since the refrigerant pipe 29 may protrude out of the receiving groove 284 after being pressed, 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 that the refrigerant pipe 29 may be squeezed and ruptured. Therefore, by placing the receiving groove 284 on the side of the second heat sink 28 away from the first heat sink 24, the refrigerant pipe 29 can be prevented from being squeezed and ruptured.

[0095] In some embodiments, at least one fastener passes through and connects the first heat sink 24 and the second heat sink 28. By disassembling 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 can be loosened, allowing the electrical assembly box 23 to be separated from the second heat sink 28. This allows the electrical assembly box 23 to be disassembled for replacement and repair of the circuit board. This reduces the number of fasteners that need to be removed, and the connection between the second heat sink 28 and the fixing member 27 does not need to be removed, nor does the fastener between the electrical assembly box 23 and the first heat sink 24 need to be removed to replace and repair the circuit board, thus improving repair efficiency.

[0096] 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 assembly box 23 and the circuit board can be removed by disassembling the first heat sink 24 and the second heat sink 28 without disassembling the second heat sink 28, thus facilitating the replacement and repair of the circuit board and improving the efficiency of circuit board repair. The detachable connection between the first heat sink 24 and the second heat sink 28 is not limited to the use of fasteners; it can also be detachably connected by means of clips or other methods.

[0097] In some embodiments, as shown in Figures 5 and 16, the outdoor unit 200 may include a mounting plate 61 connected to the top of the partition 22, with the electrical assembly box 23 connected above the mounting plate 61. As shown in Figures 5 and 9, the outdoor unit 200 may include a module bracket 51 disposed between the power module 26 and the circuit board body 25, with the module bracket 51 positioned at the bottom of the circuit board body 25. The module bracket 51 is configured to support the power module 26, preventing or mitigating damage to the solder joints connecting the power module 26 to the circuit board body 25 due to stress, thereby preventing or mitigating damage to the power module 26.

[0098] In some embodiments, referring to FIG10, the electrical assembly box 23 may include a first fixing hole 231, which penetrates the bottom of the electrical assembly box 23. Referring to FIGS. 10 and 15, the first heat sink 24 may include a second fixing hole 242, which corresponds to the first fixing hole 231 and penetrates the first heat sink 24. The second heat sink 28 may include a third fixing hole 281, which corresponds to the second fixing hole 242 and penetrates the second heat sink 28.

[0099] In some embodiments, referring to FIG10, the outdoor unit 200 of the air conditioner includes a first fastener 41. The first fastener 41 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.

[0100] In some embodiments, referring to FIG10, the outdoor unit 200 of the air conditioner includes a first fastener 41. The first fastener 41 passes through a first fixing hole 231 and also passes through a second fixing hole 242 and a third fixing hole 281 to connect a first heat sink 24 and a second heat sink 28. The first fixing hole 231 can accommodate the first fastener 41, so that the first fastener can connect the first heat sink 24 and the second heat sink 28.

[0101] In some embodiments, the diameter of the second fixing hole 242 is smaller than the diameter of the first fixing hole 231, so that the first fastener 41 can pass through the first fixing hole 231, abut against the upper side of the first heat sink 24, and make the first heat sink 24 and the second heat sink 28 tightly connected.

[0102] In some embodiments, the first fastener 41 connects the first heat sink 24 and the second heat sink 28. The second heat sink 28 is provided with a refrigerant pipe 29, which facilitates the second heat sink 28 to dissipate heat from the first heat sink 24.

[0103] In some embodiments, the fastener 27 may include a fourth fixing hole, which corresponds 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 fix the first heat sink 24, the second heat sink 28 and the fastener 27.

[0104] In some embodiments, referring to Figures 10 and 13, a limiting portion 232 is provided on the edge of the first fixing hole 231. The limiting portion 232 is located at the end of the first fixing hole 231 away from the first heat sink 24 and surrounds the edge of the first fixing hole 231. Referring to Figures 10 and 11, a first limiting hole 251 corresponding to the limiting portion 232 is provided on the circuit board body 25. The limiting portion 232 is inserted into the first limiting hole 251 to limit the circuit board body 25, which facilitates the positioning between the circuit board and the electrical assembly box 23 and improves assembly efficiency.

[0105] In some embodiments, the electrical box 23 may be provided with at least two first fixing holes 231, and the edges of the at least two first fixing holes 231 are respectively provided with corresponding limiting portions 232. The circuit board body 25 is provided with at least two first limiting holes 251, which correspond one-to-one with the limiting portions 232.

[0106] In this embodiment, the freedom of the circuit board body 25 is restricted by at least two limiting parts 232 and the first limiting hole 251 corresponding to the limiting parts 232, thereby restricting the horizontal movement and rotation of the circuit board body 25 within the electrical box.

[0107] In some embodiments, the limiting portion 232 may be arranged in a ring shape in the cross section in the horizontal direction.

[0108] In some embodiments, referring to FIG11, the shortest distance between the outer surface of the limiting part 232 and the first limiting hole 251 is defined as a first distance a, where a is greater than or equal to a first parameter value, which can be any value between 0.2mm and 0.5mm. That is, the first parameter value can be 0.2mm. When a ≥ 0.2mm, the distance between the outer surface of the limiting part 232 and the first limiting hole 251 is not too small, which facilitates the alignment of the first limiting hole 251 and the limiting part 232 and improves the assembly efficiency between the first limiting hole 251 and the limiting part 232.

[0109] In some embodiments, a ≥ 0.5 mm and a ≤ 1 mm. In this disclosure, 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 limiting part 232 and the first limiting hole 251 will be too small, making it difficult to align the first limiting hole 251 and the limiting part 232, thus affecting the assembly efficiency between the first limiting hole 251 and the limiting part 232. The lower limit value of a can be 0.5 mm. a also 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 limiting part 232 and the first limiting hole 251 will be too large, causing the limiting part 232 to wobble within the first limiting hole 251 after it is inserted into the first limiting hole 251, thereby affecting the fixing effect of the circuit board and the connection between other components and the circuit board. The upper limit value of a can be 1 mm.

[0110] In some embodiments, the value of a can be 0.7 mm, which allows the distance between the outer surface of the limiting part 232 and the first limiting hole 251 to be appropriate, which facilitates the alignment of the first limiting hole 251 and the limiting part 232, improves the assembly efficiency between the first limiting hole 251 and the limiting part 232, and ensures that after the limiting part 232 is inserted into the first limiting hole 251, the limiting part 232 can be restricted within the first limiting hole 251, avoiding the shaking of the circuit board and facilitating the connection between other components and the circuit board.

[0111] In some embodiments, referring to FIG10, the first heat sink 24 may include a positioning post 241 disposed at the bottom of the first heat sink 24. 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 restricting the degree of freedom of the first heat sink 24 and the second heat sink 28 in the horizontal direction and preventing the first heat sink 24 from moving or rotating relative to the second heat sink 28.

[0112] In some embodiments, the first heat sink 24 may be provided with at least two positioning posts 241, and the second heat sink 28 may be provided with at least two positioning holes 283 corresponding to the positioning posts 241, the number of positioning holes 283 corresponding to the number of positioning posts 241.

[0113] In this embodiment, the degrees of freedom of the first heat sink 24 are restricted by at least two positioning posts 241 and the positioning holes 283 of the corresponding positioning posts 241, thereby restricting the horizontal movement and rotation of the first heat sink 24 relative to the second heat sink 28.

[0114] In some embodiments, referring to FIG12, the shortest distance between the outer surface of the positioning post 241 and the positioning hole 283 is defined as the second distance b. The second distance b is greater than or equal to the second parameter value. The second parameter value can be any value between 0.15mm and 0.5mm, that is, the second parameter value can be 0.15mm. When b≥0.15mm, the distance between the outer surface of the positioning post 241 and the positioning hole 283 is not too small, which facilitates the alignment and assembly of the positioning post 241 and the positioning hole 283, improves the assembly efficiency between the positioning post 241 and the positioning hole 283, and thus improves the positioning and installation efficiency between the first heat sink 24 and the second heat sink 28.

[0115] In some embodiments, b ≥ 0.15 mm and b ≤ 0.3 mm. In this disclosure, b has a lower limit value, and b cannot be less than the lower limit value. When b is less than the lower limit value, the distance between the outer surface of the positioning post 241 and the positioning hole 283 will be too small, which is not conducive to the alignment and assembly of the positioning post 241 and the positioning hole 283, affecting the assembly efficiency between the positioning post 241 and the positioning hole 283, resulting in low positioning and installation efficiency between the first heat sink 24 and the second heat sink 28. The lower limit value of b can be 0.15 mm. b also has an upper limit value, and b cannot be greater than the upper limit value. When b is greater than the upper limit value, the distance between the outer surface of the positioning post 241 and the positioning hole 283 will be too large, causing the first heat sink 24 to wobble relative to the second heat sink 28 after the positioning post 241 is inserted into the positioning hole 283, 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.

[0116] In some embodiments, the value of b can be 0.2 mm, which makes the distance between the outer surface of the positioning post 241 and the positioning hole 283 appropriate, which facilitates the alignment and assembly of the positioning post 241 and the positioning hole 283. After the positioning post 241 and the positioning hole 283 are aligned and assembled, the first heat sink 24 is limited by the positioning post 241, and the first heat sink 25 will not wobble significantly relative to the second heat sink 28, which can improve the assembly efficiency between the positioning post 241 and the positioning hole 283, thereby improving the positioning and installation efficiency between the first heat sink 24 and the second heat sink 28.

[0117] In some embodiments, referring to FIG6, the indoor unit of the air conditioner further includes a capacitor module 71, which is disposed on the top of the circuit board body 25 and is disposed on both sides of the circuit board body 25 opposite to the power module 26.

[0118] In this disclosure, the capacitor module 71 serves to filter and smooth the power supply voltage, providing a stable current to the circuit. Placing the capacitor module 71 on top of the circuit board body 25 avoids or mitigates contact between the capacitor module 71 and condensate forming on the first heat sink 24, thus preventing or reducing damage to the capacitor module 71. Placing the power module 26 in contact with the first heat sink 24 improves the heat dissipation effect of the first heat sink 24 on the power module 26.

[0119] In some embodiments, referring to FIG8, a fastener that fixes the second heat sink 28 to the fixing member 27 is defined as a second fastener 42. The second heat sink 28 may include a first connecting hole 282, which is disposed through the second heat sink 28. The second fastener 42 passes through the first connecting hole 282 to connect to the fixing member 27, thereby fixing the second heat sink 28 to the fixing member 27. The fixing member 27 can fix and support the second heat sink 28.

[0120] In some embodiments, the first connecting hole 282 may be configured as a countersunk hole so that the second fastener 42 is completely recessed into the first connecting hole 282, thereby preventing the second fastener 42 from protruding from the top of the second heat sink 28 and affecting the assembly with the first heat sink 24.

[0121] In some embodiments, as shown in Figures 7 and 9, a third fastener 43 is defined as the fastener that securely connects the electrical assembly box 23 and the first heat sink 24. The electrical assembly box 23 may include a second connecting hole 234, which penetrates the bottom of the electrical assembly box 23 and is countersunk. As shown in Figures 7, 9, and 15, the first heat sink 24 may include a third connecting hole 243, which penetrates the first heat sink 24 and corresponds to the second connecting hole 234. The third fastener 43 passes through the second connecting hole 234 and the third connecting hole 243 to connect the electrical assembly box 23 and the first heat sink 24.

[0122] In some embodiments, the circuit board body 25 is fixedly connected to the electrical assembly box 23. The circuit board body 25 and the electrical assembly box 23 are connected by a snap-fit ​​connection or by a fastener.

[0123] In some embodiments, referring to FIG9, the circuit board body 25 may include a fourth connection hole 252, which is disposed through the circuit board body 25 and is correspondingly disposed above the module bracket 51.

[0124] In some embodiments, the module bracket 51 is hollowed out. In the height direction of the housing 21, the module bracket 51 is hollowed out at the position corresponding to the fourth connection hole 252, so that fasteners can pass through the circuit board body 25 and the module bracket 51.

[0125] In some embodiments, referring to FIG9, the power module 26 may include a fifth connection hole 261, which corresponds to the fourth connection hole 252 and extends through the power module 26. The first heat sink 24 may include a sixth connection hole 244, which corresponds to the fifth connection hole 261.

[0126] In some embodiments, the outdoor unit 200 of the air conditioner may include a fourth fastener 44, which passes through the fourth connecting hole 252 and the module bracket 51. The fourth fastener 44 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 contacts the first heat sink 24, which facilitates the first heat sink 24 to dissipate heat from the power module 26.

[0127] In some embodiments, the outdoor unit 200 of the air conditioner may include a fourth fastener 44, which passes through a fifth connecting hole 261 and a sixth connecting hole 244 to connect the power module 26 and the first heat sink 24, so that the power module 26 contacts the first heat sink 24, facilitating heat dissipation from the power module 26 by the first heat sink 24. The fourth connecting hole 252 corresponds to the fifth connecting hole 261. Passing through the fourth connecting hole 252 and the module bracket 51, the fourth fastener 44 can be easily fixed or disassembled using tools, facilitating the installation and removal of the fourth fastener 44 from above the circuit board body 25.

[0128] In some embodiments, the first heat sink 24 and the second heat sink 28 are positioned by the positioning post 241 and the positioning hole 283, and the first fastener 41 passes through the first fixing hole 231 and the second fixing hole 242 and the third fixing hole 281 to connect the first heat sink 24 and the second heat sink 28.

[0129] In some embodiments, referring to FIG9, the power module 26 has a fifth connection hole 261 through which at least one fastener passes to secure the power module 26 to the first heat sink 24.

[0130] 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. 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 line.

[0131] 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 assembly box 23.

[0132] In some embodiments, the power module 26 and the second heat sink 28 are not connected by fasteners.

[0133] In some embodiments, the second fixing hole 281 and the fifth connecting hole 261 are not concentrically arranged, and the power module 26 and the second heat sink 28 are not connected by fasteners. This allows the second heat sink 28 to be separated from the first heat sink 24 by removing the first fastener 41, thereby allowing the electrical assembly box 23 to be removed to replace the circuit board for repair. The connection between the second heat sink 28 and the fixing member 27 does not need to be removed, nor does the fastener between the electrical assembly box 23 and the first heat sink 24 need to be removed to replace the circuit board for repair, thus improving repair efficiency.

[0134] In some embodiments, the fastener 27 is detachably connected to the partition 22, which facilitates the separate processing of the fastener 27 and the partition 22, making the partition 22 have a universal design, so that the partition 22 can be applied to other models, and the fastener 27 can be pre-assembled with the refrigerant radiator 208, thereby reducing the assembly steps on the assembly line and improving assembly efficiency.

[0135] In some embodiments, the fastener 27 and the partition 22 are integrally formed, which eliminates the assembly process between the fastener 27 and the partition 22, improves the assembly efficiency on the assembly line, and also helps to improve the connection strength between the fastener 27 and the partition 22, thereby improving the support effect of the fastener 27 on the refrigerant radiator 208. The fastener 27 can be connected to the electrical assembly box 23, which can improve the connection strength between the fastener 27 and the electrical assembly box 23, making the fixing of the electrical assembly box 23 more stable. Referring to FIG4, the housing 21 may include a front cover 213, which is located at the front of the housing, and the housing 21 has an accommodating cavity.

[0136] In some embodiments, referring to FIG18, the outdoor unit 200 of the air conditioner may include an electrical enclosure 23, at least a portion of which is disposed within a first cavity. The electrical enclosure is at least partially made of plastic and may have good insulation properties to effectively prevent current leakage and short circuits, ensuring the safe operation of the electrical equipment.

[0137] In some embodiments, referring to Figures 17 and 18, the plane containing the circuit board body 25 is vertically oriented. When the plane containing the circuit board body 25 is vertically oriented, the circuit board can be placed inside a large-sized housing 21. Since the housing 21 is large, the entire circuit board can be placed inside the first chamber without significantly affecting the space occupied by the first chamber. The circuit board body 25 can be oriented according to the size and structure of the outdoor unit 200 of the air conditioner.

[0138] In some embodiments, referring to FIG19, the outdoor unit 200 of the air conditioner may include a first heat sink 24, which is disposed on the side of the power module 26 away from the circuit board body 25, and the first heat sink 24 is in contact with the power module 26.

[0139] In some embodiments, the power module 26 may have a connection hole, through which at least one fastener passes through the circuit board body 25, the connection hole and the first heat sink 24 to fix the power module 26 to the first heat sink 24.

[0140] In some embodiments, referring to FIG17, the outdoor unit 200 of the air conditioner may include a refrigerant radiator 208 disposed in a first chamber. The refrigerant radiator 208 contacts a first heat sink 24 to dissipate heat from the power module 26.

[0141] In some embodiments, as shown in FIG19 and FIG23, the refrigerant radiator 208 may include a second heat sink 28, which is located on the side of the first heat sink 24 away from the power module 26. The second heat sink 28 is connected to the first heat sink 24, and a receiving groove 284 is provided on the side of the second heat sink 28 away from the first heat sink 24.

[0142] In this disclosure, a first heat sink 24 abuts against and is connected to the power module 26. The side of the first heat sink 24 away from the power module 26 is in contact with a second heat sink 28, and the second heat sink 28 abuts against and is connected to the first heat sink 24. The heat generated by the power module 26 is transferred to the second heat sink 28 through the first heat sink 24, and then carried away through heat transfer with the refrigerant pipe 29, thus dissipating heat from the power module 26.

[0143] In some embodiments, as shown in Figures 17, 19, and 23, the refrigerant radiator 208 may include a refrigerant pipe 29 disposed within a receiving groove 284. Referring to Figure 23, the receiving groove 284 may be configured as at least two grooves, arranged side by side, with a section of refrigerant pipe 29 passing through both grooves 284 sequentially to connect to them.

[0144] In some embodiments, the receiving groove 284 has an opening on the second heat sink 28. When assembling the refrigerant pipe 29 and the receiving groove 284, the refrigerant pipe 29 is placed into the receiving groove 284 through the opening. The refrigerant pipe 29 can be pressed into the receiving groove 284 by a pressing process. By pressing the refrigerant pipe 29 with external force, the refrigerant pipe 29 is deformed and squeezed towards both sides of the receiving groove 284, so that the refrigerant pipe 29 is in close contact with the inner circumferential surface of the receiving groove 284, thus making the refrigerant pipe 29 and the receiving groove 284 compatible.

[0145] In some embodiments, as shown in Figures 17, 19, and 23, the outdoor unit 200 of the air conditioner may include a fixing member 27, which is fixedly connected to the second heat dissipation plate 28. The refrigerant pipe 29 is pressed into the receiving groove 284. After the fixing member 27 is fixedly connected to the second heat dissipation plate 28, it is connected to the partition plate 22. The refrigerant pipe 29 is connected to the refrigerant circuit by welding.

[0146] In some embodiments, referring to Figures 17 to 19, the outdoor unit 200 of the air conditioner may include a mounting bracket 600. After the circuit board, power module 26, electrical assembly box 23, and first heat sink 24 are connected, the electrical assembly box 23 is connected to one side of the mounting bracket 600. After the fixing member 27 is connected to the partition 22, the mounting bracket 600 is connected to the partition 22.

[0147] With the partition plate 22 fixedly connected by the fastener 27, the refrigerant pipe 29 is connected to the refrigerant circuit. With the partition plate 22 fixedly connected by the mounting piece 600, fasteners are passed through the circuit board, the first heat sink 24, and the second heat sink 28 to connect the first heat sink 24 and the second heat sink 28.

[0148] In this embodiment, by setting a fixing member 27, which is connected to the second heat sink 28, and then connecting the fixing member 27 to the partition 22, the second heat sink 28 and the refrigerant pipe 29 can be fixed and supported. This facilitates the welding connection of the refrigerant pipe 29 to the refrigerant circuit. At this time, the circuit board and the mounting part 600 are not connected to the partition 22, so that the high temperature generated by welding the refrigerant pipe 29 will not affect the reliability of the circuit board.

[0149] After connecting the circuit board, the electrical assembly box 23, and the first heat sink 24, the electrical assembly box 23 is attached to the mounting bracket 600. After the partition plate 22 is fixedly connected to the fastener 27, the mounting bracket 600 is attached to the partition plate 22. At this time, the first heat sink 24 and the second heat sink 28 are connected by passing through at least one fastener through the circuit board body 25, the first heat sink 24, and the second heat sink 28.

[0150] The fastener 27 is connected to the partition 22 and can position the second heat sink 28. The mounting part 600 is connected to the partition 22 and can position the first heat sink 24 and the circuit board, so as to improve the connection accuracy between the first heat sink 24 and the second heat sink 28 and thus improve the assembly efficiency.

[0151] In some embodiments, referring to Figures 18 and 19, the circuit board may include a fifteenth connection hole 5001 that extends through the circuit board. At least two fifteenth connection holes 5001 may be provided to facilitate securing the circuit board.

[0152] In some embodiments, referring to Figures 19, 21, and 22, the first heat sink 24 may include a sixteenth connecting hole 5002, which corresponds to the fifteenth connecting hole 5001 and penetrates through the first heat sink 24. At least two sixteenth connecting holes 5002 may be provided, with the number of sixteenth connecting holes 5002 corresponding one-to-one with the number of fifteenth connecting holes 5001.

[0153] In some embodiments, referring to Figures 19 and 23, the second heat sink 28 may include a seventeenth connecting hole 5003, the number of which corresponds one-to-one with the number of sixteenth connecting holes 5002. The seventeenth connecting hole 5003 may penetrate the second heat sink 28.

[0154] In some embodiments, the fifteenth connecting hole 5001, the sixteenth connecting hole 5002, and the seventeenth connecting hole 5003 may be configured as threaded holes.

[0155] In some embodiments, the module connection hole 2601 of the power module 26 is not concentric with the sixteenth connection hole 5002, so that the power module 26 and the second heat sink 28 are not connected by fasteners. This allows the second heat sink 28 to be separated from the first heat sink 24 by removing the fasteners passing through the sixteenth connection hole 5002 and the seventeenth connection hole 5003, thereby facilitating the disassembly and replacement of the circuit board and making the maintenance of the circuit board more convenient.

[0156] With the mounting component 600 connected to the partition 22 and the fastener 27 connected to the partition 22, the sixteenth connecting hole 5002 and the seventeenth connecting hole 5003 correspond to each other. The fastener can pass through the fifteenth connecting hole 5001. The fastener passes through the sixteenth connecting hole 5002 and the seventeenth connecting hole 5003 to connect the first heat sink 24 and the second heat sink 28.

[0157] The refrigerant radiator 208 is connected to the fastener 27, and the fastener 27 is connected to the partition 22. The refrigerant radiator 208 can be pre-positioned, making it easy to pre-fix the refrigerant radiator 208 inside the outdoor unit 200 of the air conditioner.

[0158] After connecting the circuit board, electrical assembly box 23, and first heat sink 24, the electrical assembly box 23 is connected to the mounting component 600. The mounting component 600 is then connected to the partition plate 22, allowing for pre-positioning of the circuit board, electrical assembly box 23, and first heat sink 24. This facilitates pre-fixing the circuit board, electrical assembly box 23, and first heat sink 24 within the outdoor unit 200 of the air conditioner. Positioning reduces installation errors between the circuit board, first heat sink 24, and second heat sink 28, specifically reducing installation errors between the fifteenth connecting hole 5001, the sixteenth connecting hole 5002, and the seventeenth connecting hole 5003, thereby improving the assembly efficiency of the circuit board, first heat sink 24, and second heat sink 28.

[0159] In some embodiments, fasteners may be provided to pass through the circuit board body 25 and the first heat sink 24 to connect the circuit board body 25 and the first heat sink 24, thereby preventing the pins of the power module 26, which is located between the circuit board body 25 and the first heat sink 24, from being subjected to force.

[0160] In some embodiments, the power module 26 is connected to the first heat sink 24, and the first heat sink 24 is connected to the second heat sink 28. The power module 26 and the second heat sink 28 are not connected by fasteners. Therefore, when the circuit board needs to be disassembled for maintenance, it is only necessary to remove 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. Since the first heat sink 24 is connected to the circuit board, and since the second heat sink 28 is connected to the fixing member 27 located on the outdoor unit 200 of the air conditioner, the circuit board can be separated from the outdoor unit 200 of the air conditioner when the first heat sink 24 and the second heat sink 28 are separated. It is not necessary to remove the fasteners between the first heat sink 24 and the circuit board body 25, nor is it necessary to remove the connection between the second heat sink 28 and the fixing member 27. This reduces the number of fasteners that need to be removed, improves maintenance efficiency, and eliminates the need to remove the second heat sink 28 from the outdoor unit 200 of the air conditioner, thus improving the convenience of disassembly.

[0161] On the other hand, the pins of the power module 26 are generally prone to breakage. After the product leaves the factory, it is generally not advisable to move the fasteners that fix the power module 26 and the first heat sink 24. Therefore, compared to the case where the same fastener is used to directly pass through the power module 26, the first heat sink 24, and the second heat sink 28, this solution adopts a form where the power module 26 and the second heat sink 28 are not connected by fasteners. When disassembling, it is not necessary to remove the screws between the power module 26 and the first heat sink 24 to remove the circuit board from the outdoor unit 200 of the air conditioner. In other words, when the circuit board is removed, the fasteners between the power module 26 and the first heat sink 24 are still connected between them. This means that when the circuit board is reinstalled in the outdoor unit 200 of the air conditioner, it is not necessary to use fasteners to pass through the power module 26 and the first heat sink 24 again, reducing the number of times the fasteners on the power module 26 are loosened and tightened, and reducing the breakage of the pins of the power module 26.

[0162] In some embodiments, the mounting component 600 is detachably connected to the partition 22, allowing the mounting component 600 and the partition 22 to be processed and installed separately. This allows the circuit board, electrical assembly box 23, and first heat sink 24 to be assembled with the mounting component 600 first, and then the mounting component 600 to be connected to the partition 22 as a whole. This eliminates the need to assemble the circuit board, electrical assembly box 23, and first heat sink 24 to the mounting component 600 separately on subsequent assembly lines, allowing the assembled mounting component 600 to be directly connected to the partition 22 as a whole, thus improving assembly efficiency.

[0163] In some embodiments, the fastener 27 is detachably connected to the partition 22, allowing the fastener 27 and the partition 22 to be processed and installed separately. This allows the second heat sink 28 and the refrigerant pipe 29 to be assembled with the fastener 27 first, and then the fastener 27 to be connected to the partition 22 as a whole. This eliminates the need to assemble the second heat sink 28, the refrigerant pipe 29 and the fastener 27 separately on the subsequent assembly line. The assembled fastener 27 can be directly connected to the partition 22 as a whole, making the assembly quick and efficient.

[0164] In some embodiments, referring to Figures 19 and 22, the electrical assembly box 23 may include a first assembly port 2001, which is disposed on the side of the electrical assembly box 23 near the second heat sink 28 and extends through the electrical assembly box 23.

[0165] In some embodiments, the first heat sink 24 is disposed on the side of the electrical assembly box 23 away from the circuit board and is disposed corresponding to the first assembly port 2001. The first heat sink 24 can completely cover the first assembly port 2001. The first heat sink 24 can be connected to the power module 26 through the first assembly port 2001, thereby facilitating the first heat sink 24 to dissipate heat from the power module 26.

[0166] In some embodiments, referring to FIG20, the electrical assembly box 23 may include a connecting post 2002, on which an eighteenth connecting hole 2003 is provided. The depth direction of the eighteenth connecting hole 2003 is the same as the axial direction of the connecting post 2002.

[0167] In some embodiments, the eighteenth connecting hole 2003 may be configured as a threaded hole.

[0168] In some embodiments, the circuit board abuts against the connecting post 2002, and fasteners pass through the circuit board and the eighteenth connecting hole 2003 to fix the circuit board and the electrical assembly box 23, thereby realizing the pre-assembly of the electrical assembly box 23 and the circuit board and improving the assembly efficiency on the production line.

[0169] In some embodiments, at least two connecting posts 2002 may be provided to improve the fixing effect on the circuit board.

[0170] In some embodiments, the power module 26 is correspondingly disposed in the first assembly port 2001, and fasteners pass through the circuit board, the power module 26 and the first heat sink 24 to connect the power module 26 and the first heat sink 24.

[0171] In some embodiments, the circuit board is abutted against the connecting post 2002. After the circuit board is connected to the electrical assembly box 23, the pins of the power module 26 can be prevented from being damaged by force.

[0172] In some embodiments, referring to Figures 19 and 22, the mounting member 600 may include a third positioning hole 6005, which penetrates the mounting member 600. Referring to Figure 20, the electrical assembly box 23 may include a third positioning portion 2005, which is disposed at the bottom of the mounting box and is integrally formed with the mounting box. The third positioning portion 2005 is engaged with the third positioning hole 6005 to position the electrical assembly box 23 on the mounting member 600.

[0173] In some embodiments, as shown in Figures 19 and 20, the mounting member 600 may include a nineteenth connecting hole 6001 that penetrates the mounting member, and the electrical box 23 may include a twentieth connecting hole 2004 that corresponds to the nineteenth connecting hole 6001. Fasteners pass through the nineteenth connecting hole 6001 and the twentieth connecting hole 2004 to connect the electrical box 23 and the mounting member 600, thereby assembling the electrical box 23 onto the mounting member 600.

[0174] In this embodiment, the fastener passes through the nineteenth connecting hole 6001 and the twentieth connecting hole 2004 to connect the electrical assembly box 23 and the mounting component 600. The electrical assembly box 23 can be connected to the mounting component 600 in advance, realizing the pre-assembly of the electrical assembly box 23 and the mounting component 600. This can save assembly steps on the assembly line and improve the assembly efficiency on the assembly line.

[0175] In some embodiments, referring to Figures 25 to 31, the outdoor unit 200 of the air conditioner may not have an electrical enclosure 23, and electronic components may be disposed on a circuit board, with a power module 26 disposed on the circuit board. The circuit board may include a circuit board body 25, which is configured to carry the electronic components.

[0176] In some embodiments, as shown in FIG22, the power module 26 has a module connection hole 2601, through which at least one fastener passes through the circuit board body 25, the module connection hole 2601 and the first heat sink 24 to fix the power module 26 to the first heat sink 24.

[0177] In some embodiments, the first heat sink 24 may include a second thirteenth connection hole, which corresponds to the module connection hole 2601 and extends through the first heat sink 24. At least one fastener passes through the module connection hole 2601 and the second thirteenth connection hole to connect the power module 26 and the first heat sink 24.

[0178] In some embodiments, the 23rd connecting hole and the 16th connecting hole 5002 are not concentrically arranged, so that the power module 26 and the second heat sink 28 are not connected by fasteners. This allows the second heat sink 28 to be separated from the first heat sink 24 by removing the fasteners passing through the 16th connecting hole 5002 and the 17th connecting hole 5003, thereby facilitating the disassembly and replacement of the circuit board and making the maintenance of the circuit board more convenient.

[0179] In some embodiments, referring to Figures 25 to 31, the outdoor unit 200 of the air conditioner may include a mounting member 600. A circuit board is connected to one side of the mounting member 600; that is, after the circuit board, power module 26, and first heat sink 24 are connected, the circuit board is then connected to one side of the mounting member 600. After the fastener 27 is connected to the partition 22, the mounting member 600 is connected to the partition 22. Fasteners pass through the circuit board, the first heat sink 24, and the second heat sink 28 to connect the first heat sink 24 and the second heat sink 28.

[0180] The refrigerant radiator 208 is connected to the fastener 27, and the fastener 27 is connected to the partition 22. The refrigerant radiator 208 can be pre-positioned, making it easy to pre-fix the refrigerant radiator 208 inside the outdoor unit 200 of the air conditioner.

[0181] After connecting the circuit board, power module 26, and first heat sink 24, the circuit board is then connected to the mounting bracket 600. Connecting the mounting bracket 600 to the partition 22 allows for pre-positioning of the circuit board, power module 26, and first heat sink 24, facilitating pre-fixing of the circuit board and first heat sink 24 within the outdoor unit 200 of the air conditioner. This positioning reduces installation errors between the circuit board, first heat sink 24, and second heat sink 28, improving assembly efficiency.

[0182] In some embodiments, the mounting component 600 is detachably connected to the partition plate 22, allowing the mounting component 600 and the partition plate 22 to be processed and installed separately. This allows the circuit board and the first heat sink 24 to be assembled with the mounting component 600 first, and then the mounting component 600 to be connected to the partition plate 22 as a whole. This eliminates the need to assemble the circuit board and the first heat sink 24 to the mounting component 600 separately on the subsequent assembly line, allowing the assembled mounting component 600 to be directly connected to the partition plate 22 as a whole, thus improving assembly efficiency.

[0183] In some embodiments, the fastener 27 is detachably connected to the partition 22, allowing the fastener 27 and the partition 22 to be processed and installed separately. This allows the second heat sink 28 and the refrigerant pipe to be assembled with the fastener 27 first, and then the fastener 27 to be connected to the partition 22 as a whole. This eliminates the need to assemble the second heat sink 28, the refrigerant pipe and the fastener 27 separately on the subsequent assembly line. The assembled fastener 27 can be directly connected to the partition 22 as a whole, making the assembly quick and efficient.

[0184] In some embodiments, referring to FIG30, the circuit board body 25 may include a second 1st connection hole 25001, which penetrates the circuit board body 25.

[0185] In some embodiments, referring to FIG30, the mounting member 600 may include a second twentieth connecting hole 6002, which corresponds to a second eleventh connecting hole 25001. The second twentieth connecting hole 6002 may be provided as at least two, and the number of the second twentieth connecting holes 6002 is the same as the number of the second eleventh connecting holes 25001.

[0186] In some embodiments, referring to FIG30, the outdoor unit 200 of the air conditioner may include a seventh fastener 25002, which passes through a twenty-first connecting hole 25001 and a twenty-second connecting hole 6002 to connect the circuit board and the mounting member 600, so as to fix the circuit board to the mounting member 600, avoid pressing the power module 26, and prevent the pins of the power module 26 from being damaged by force.

[0187] In some embodiments, at least two twenty-first connection holes 25001 may be provided, and at least two twenty-first connection holes 25001 can facilitate fixing and limiting the shaking of the circuit board.

[0188] In some embodiments, referring to FIG31, the mounting member 600 may include a mounting pin 6003 extending toward the circuit board. The mounting pin 6003 may be integrally formed with the mounting member 600. At least two mounting pins 6003 may be provided, which facilitates the positioning and securing of the circuit board.

[0189] In some embodiments, referring to FIG31, the circuit board may include mounting holes 25003, which penetrate the mounting member. There may be at least two mounting holes 25003, and the number of mounting holes 25003 corresponds to the number of mounting pins 6003. The mounting holes 25003 cooperate with the mounting pins 6003, and the mounting pins 6003 are inserted into the mounting holes 25003 to connect the circuit board and the mounting member 600. This avoids pressing on the power module 26 and prevents the pins of the power module 26 from being damaged by force.

[0190] In some embodiments, referring to FIG30, the mounting component 600 may include a second mounting port 6004, a power module 26 is disposed corresponding to the second mounting port 6004, and a first heat sink 24 is disposed corresponding to the second mounting port 6004. The first heat sink 24 is disposed on the side of the mounting component 600 away from the circuit board body 25. The size of the power module 26 is smaller than the size of the second mounting port 6004, so that the power module 26 can be disposed within the second mounting port 6004, which can further prevent the power module 26 from being damaged by force when the fastener connects the circuit board and the mounting component 600.

[0191] In some embodiments, the size of the first heat sink 24 may be smaller than the size of the second mounting opening 6004, so that the first heat sink 24 can be disposed within the second mounting opening 6004. Fasteners pass through the circuit board, the power module 26, and the first heat sink 24 to fix the first heat sink 24 to the power module 26.

[0192] In some embodiments, referring to FIG27, the circuit board may include a fifteenth connecting hole 5001 that penetrates the circuit board. At least two fifteenth connecting holes 5001 may be provided to facilitate securing the circuit board.

[0193] In some embodiments, referring to FIG27, the first heat sink 24 may include a sixteenth connection hole 5002, which corresponds to the fifteenth connection hole 5001 and penetrates the first heat sink 24.

[0194] In some embodiments, at least two sixteenth connection holes 5002 may be provided, and the number of sixteenth connection holes 5002 corresponds one-to-one with the number of fifteenth connection holes 5001.

[0195] In some embodiments, referring to FIG27, the second heat sink 28 may include a seventeenth connecting hole 5003, the number of which corresponds one-to-one with the number of sixteenth connecting holes 5002. The seventeenth connecting hole 5003 penetrates through the second heat sink 28.

[0196] In some embodiments, the fifteenth connecting hole 5001, the sixteenth connecting hole 5002, and the seventeenth connecting hole 5003 may be configured as threaded holes.

[0197] With the mounting component 600 connected to the partition 22 and the fastener 27 connected to the partition 22, the sixteenth connecting hole 5002 and the seventeenth connecting hole 5003 correspond to each other, and the fastener passes through the fifteenth connecting hole 5001, the sixteenth connecting hole 5002 and the seventeenth connecting hole 5003 to connect the first heat sink 24 and the second heat sink 28.

[0198] The refrigerant radiator 208 is connected to the fastener 27, and the fastener 27 is connected to the partition 22. The refrigerant radiator 208 can be pre-positioned, making it easy to pre-fix the refrigerant radiator 208 inside the outdoor unit 200 of the air conditioner.

[0199] After connecting the circuit board and the first heat sink 24, the circuit board is connected to the mounting bracket 600. Connecting the mounting bracket 600 to the partition 22 allows for pre-positioning of the circuit board and the first heat sink 24, facilitating the pre-fixing of the circuit board, electrical assembly box 23, and the first heat sink 24 inside the outdoor unit 200 of the air conditioner. This positioning reduces the installation error between the circuit board, the first heat sink 24, and the second heat sink 28, specifically reducing the installation error between the fifteenth connecting hole 5001, the sixteenth connecting hole 5002, and the seventeenth connecting hole 5003, thereby improving the assembly efficiency of the circuit board, the first heat sink 24, and the second heat sink 28.

[0200] In some embodiments, the fastener 27 is detachably connected to the partition 22, which facilitates the separate processing of the fastener 27 and the partition 22, making the partition 22 have a universal design, so that the partition 22 can be applied to other models, and the fastener 27 can be pre-assembled with the refrigerant radiator 208, thereby reducing the assembly steps on the assembly line and improving assembly efficiency.

[0201] In some embodiments, the mounting component 600 is made of sheet metal, which is easy to process and form. The mounting component 600 is detachably connected to the partition 22, which makes it easy to process the mounting component 600 and the partition 22 separately. This makes the partition 22 have a universal design, so that the partition 22 can be used in other models. It also allows the mounting component 600 to be pre-assembled with the refrigerant radiator 208, thereby reducing the assembly steps on the assembly line and improving assembly efficiency.

[0202] In the description of this disclosure, the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this disclosure and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this disclosure. Unless otherwise expressly specified and limited, the terms "installed," "connected," "linked," "fixed," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that can communicate with each other; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two elements or the interaction relationship between two elements, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this disclosure according to the specific circumstances. The use of "applicable to" or "configured to" in this document implies open and inclusive language, which does not exclude applicability to or configuration of devices to perform additional tasks or steps.

[0203] As used herein, “parallel,” “perpendicular,” and “equal” include the described situation and situations that are similar to the described situation, within an acceptable deviation range, which is determined by those skilled in the art taking into account the measurement under discussion and the error associated with the measurement of a particular quantity (i.e., the limitations of the measurement system). For example, “parallel” includes absolute parallelism and approximate parallelism, where an acceptable deviation range for approximate parallelism may be, for example, within 5°; “perpendicular” includes absolute perpendicularity and approximate perpendicularity, where an acceptable deviation range for approximate perpendicularity may also be, for example, within 5°; “equal” includes absolute equality and approximate equality, where an acceptable deviation range for approximate equality may be, for example, a difference between the two equals less than or equal to 5% of either one. In this disclosure, those skilled in the art can combine and integrate the different embodiments or examples described herein and the features of the different embodiments or examples without contradiction.

[0204] Although embodiments of the present disclosure have been shown and described above, it is to be understood that the above embodiments are exemplary and should not be construed as limiting the present disclosure. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present disclosure.

Claims

1. An outdoor unit for an air conditioner, wherein, include: The housing has an internal cavity; A partition is disposed within the accommodating cavity, the partition dividing the accommodating cavity into a first chamber and a second chamber; The compressor is located within the first chamber; An outdoor heat exchanger, wherein a refrigerant circuit is provided between the outdoor heat exchanger and the compressor and the indoor heat exchanger; An outdoor heat exchange fan is installed in the second chamber; the outdoor heat exchange fan rotates to drive outdoor air into the interior of the housing, so that the outdoor air exchanges heat with the outdoor heat exchanger and is then blown to the outside. An electrical box is disposed on top of the partition; A circuit board, disposed inside the electrical assembly box, the circuit board comprising: The circuit board body is configured to carry electronic components, and the circuit board body is horizontally positioned. The power module is connected to the circuit board body, and the electrical box is installed in the outdoor unit of the air conditioner with the power module facing downwards; A first heat sink is disposed below the power module and in contact with the power module. A refrigerant radiator is disposed at the bottom of the first heat sink plate, and the refrigerant radiator is configured to dissipate heat from the power module; the refrigerant radiator includes: The second heat sink is located below the first heat sink and is connected to the first heat sink. The second heat sink is provided with a receiving groove. A refrigerant pipe is disposed in the receiving tank and is connected to the refrigerant circuit. A fastener connected to the partition plate, the fastener being configured to connect and fix the second heat sink plate; In this configuration, at least one fastener passes through and connects the power module and the first heat sink, and at least one fastener passes through and connects the first heat sink and the second heat sink, while the power module and the second heat sink are not connected by fasteners.

2. An outdoor unit for an air conditioner, wherein, include: The housing has an internal cavity; A partition is disposed within the accommodating cavity, the partition dividing the accommodating cavity into a first chamber and a second chamber; The compressor is located within the first chamber; An outdoor heat exchanger, wherein a refrigerant circuit is provided between the outdoor heat exchanger and the compressor and the indoor heat exchanger; An outdoor heat exchange fan is installed in the second chamber; the outdoor heat exchange fan rotates to drive outdoor air into the interior of the housing, so that the outdoor air exchanges heat with the outdoor heat exchanger and is then blown to the outside. An electrical box is disposed on top of the partition; A circuit board, disposed inside the electrical assembly box, the circuit board comprising: The circuit board body is configured to carry electronic components, and the circuit board body is horizontally positioned. The power module is connected to the circuit board body, and the electrical box is installed in the outdoor unit of the air conditioner with the power module facing downwards; A first heat sink is disposed below the power module and in contact with the power module. A refrigerant radiator is disposed at the bottom of the first heat sink plate, and the refrigerant radiator is configured to dissipate heat from the power module; the refrigerant radiator includes: The second heat sink is located below the first heat sink and is connected to the first heat sink. The second heat sink is provided with a receiving groove. A refrigerant pipe is disposed in the receiving tank and is connected to the refrigerant circuit. A fastener connected to the partition plate, the fastener being configured to connect and fix the second heat sink plate; The power module includes a fifth connection hole, which penetrates the power module. The first heat sink includes a sixth connecting hole, which corresponds to the fifth connecting hole; The outdoor unit of the air conditioner includes a fourth fastener, which passes through the fifth connecting hole and the sixth connecting hole to connect the power module and the first heat sink. The first heat sink includes a second fixing hole, which penetrates the first heat sink. The second heat sink includes a third fixing hole, which is provided corresponding to the second fixing hole; The outdoor unit of the air conditioner includes a first fastener, which passes through the second fixing hole and the third fixing hole to connect the first heat sink and the second heat sink. The second fixing hole and the fifth connecting hole are not concentrically arranged, and the power module and the second heat sink are not connected by fasteners.

3. An outdoor unit for an air conditioner, wherein, include: A housing, including a top cover located at the top of the housing, and a receiving cavity provided inside the housing; A partition is disposed within the accommodating cavity, the partition dividing the accommodating cavity into a first chamber and a second chamber; The compressor is located within the first chamber; An outdoor heat exchanger, wherein a refrigerant circuit is provided between the outdoor heat exchanger and the compressor and the indoor heat exchanger; An outdoor heat exchange fan is installed in the second chamber; the outdoor heat exchange fan rotates to drive outdoor air into the interior of the housing, so that the outdoor air exchanges heat with the outdoor heat exchanger and is then blown to the outside. An electrical box is disposed on top of the partition; A circuit board, disposed inside the electrical assembly box, the circuit board comprising: The circuit board body is configured to carry electronic components, and the circuit board body is horizontally positioned. A power module is connected to the circuit board body. When the electrical box is installed in the outdoor unit of the air conditioner, the power module is located on the side of the circuit board body away from the top cover. A first heat sink is disposed below the power module and in contact with the power module. A refrigerant radiator is disposed at the bottom of the first heat sink plate, and the refrigerant radiator is configured to dissipate heat from the power module; the refrigerant radiator includes: The second heat sink is located below the first heat sink and is connected to the first heat sink. The second heat sink is provided with a receiving groove. A refrigerant pipe is disposed in the receiving tank and is connected to the refrigerant circuit. A fastener connected to the partition plate, the fastener being configured to connect and fix the second heat sink plate; In this configuration, at least one fastener passes through and connects the power module and the first heat sink, and at least one fastener passes through and connects the first heat sink and the second heat sink, while the power module and the second heat sink are not connected by fasteners.

4. An outdoor unit for an air conditioner, wherein, include: A housing, including a top cover located at the top of the housing, and a receiving cavity provided inside the housing; A partition is disposed within the accommodating cavity, the partition dividing the accommodating cavity into a first chamber and a second chamber; The compressor is located within the first chamber; An outdoor heat exchanger, wherein a refrigerant circuit is provided between the outdoor heat exchanger and the compressor and the indoor heat exchanger; An outdoor heat exchange fan is installed in the second chamber; the outdoor heat exchange fan rotates to drive outdoor air into the interior of the housing, so that the outdoor air exchanges heat with the outdoor heat exchanger and is then blown to the outside. An electrical box is disposed on top of the partition; A circuit board, disposed inside the electrical assembly box, the circuit board comprising: The circuit board body is configured to carry electronic components, and the circuit board body is horizontally positioned. A power module is connected to the circuit board body. With the electrical box installed in the outdoor unit of the air conditioner, the power module is located on the side of the circuit board body away from the top cover. A first heat sink is disposed below the power module and in contact with the power module. A refrigerant radiator is disposed at the bottom of the first heat sink plate, and the refrigerant radiator is configured to dissipate heat from the power module; the refrigerant radiator includes: The second heat sink is located below the first heat sink and is connected to the first heat sink. The second heat sink is provided with a receiving groove. A refrigerant pipe is disposed in the receiving tank and is connected to the refrigerant circuit. A fastener connected to the partition plate, the fastener being configured to connect and fix the second heat sink plate; The power module includes a fifth connection hole, which penetrates the power module. The first heat sink includes a sixth connecting hole, which corresponds to the fifth connecting hole; The outdoor unit of the air conditioner includes a fourth fastener, which passes through the fifth connecting hole and the sixth connecting hole to connect the power module and the first heat sink. The first heat sink includes a second fixing hole, which penetrates the first heat sink. The second heat sink includes a third fixing hole, which is provided corresponding to the second fixing hole; The outdoor unit of the air conditioner includes a first fastener, which passes through the second fixing hole and the third fixing hole to connect the first heat sink and the second heat sink. The second fixing hole and the fifth connecting hole are not concentrically arranged, and the power module and the second heat sink are not connected by fasteners.

5. An outdoor unit for an air conditioner, wherein, include: The housing has an internal cavity; A partition is disposed within the accommodating cavity, the partition dividing the accommodating cavity into a first chamber and a second chamber; The compressor is located within the first chamber; An outdoor heat exchanger, wherein a refrigerant circuit is provided between the outdoor heat exchanger and the compressor and the indoor heat exchanger; An outdoor heat exchange fan is installed in the second chamber; the outdoor heat exchange fan rotates to drive outdoor air into the interior of the housing, so that the outdoor air exchanges heat with the outdoor heat exchanger and is then blown to the outside. An electrical box is disposed on top of the partition; A circuit board, disposed inside the electrical assembly box, the circuit board comprising: The circuit board body is configured to carry electronic components, and the circuit board body is horizontally positioned. A power module is connected to the circuit board body, the power module is positioned downwards, and the power module has pins and a fifth connection hole; A first heat sink is disposed below the power module and in contact with the power module. A refrigerant radiator is disposed at the bottom of the first heat sink plate, and the refrigerant radiator is configured to dissipate heat from the power module; the refrigerant radiator includes: The second heat sink is located below the first heat sink and is connected to the first heat sink. The second heat sink is provided with a receiving groove. A refrigerant pipe is disposed in the receiving tank and is connected to the refrigerant circuit. A fastener configured to connect and secure the second heat sink; In this configuration, at least one fastener passes through the fifth connecting hole and connects the power module and the first heat sink, and at least one fastener passes through and connects the first heat sink and the second heat sink, while the power module and the second heat sink are not connected by fasteners.

6. An outdoor unit for an air conditioner, wherein, include: A housing, including a top cover located at the top of the housing, and a receiving cavity provided inside the housing; A partition is disposed within the accommodating cavity, the partition dividing the accommodating cavity into a first chamber and a second chamber; The compressor is located within the first chamber; An outdoor heat exchanger, wherein a refrigerant circuit is provided between the outdoor heat exchanger and the compressor and the indoor heat exchanger; An outdoor heat exchange fan is installed in the second chamber; the outdoor heat exchange fan rotates to drive outdoor air into the interior of the housing, so that the outdoor air exchanges heat with the outdoor heat exchanger and is then blown to the outside. An electrical box is disposed on top of the partition; A circuit board, disposed inside the electrical assembly box, the circuit board comprising: The circuit board body is configured to carry electronic components, and the circuit board body is horizontally positioned. A power module is connected to the circuit board body. The power module is located on the side of the circuit board body away from the top cover. The power module has pins and a fifth connection hole. A first heat sink is disposed below the power module and in contact with the power module. A refrigerant radiator is disposed at the bottom of the first heat sink plate, and the refrigerant radiator is configured to dissipate heat from the power module; the refrigerant radiator includes: The second heat sink is located below the first heat sink and is connected to the first heat sink. The second heat sink is provided with a receiving groove. A refrigerant pipe is disposed in the receiving tank and is connected to the refrigerant circuit. A fastener configured to connect and secure the second heat sink; In this configuration, at least one fastener passes through the fifth connecting hole and connects the power module and the first heat sink, and at least one fastener passes through and connects the first heat sink and the second heat sink, while the power module and the second heat sink are not connected by fasteners.

7. The outdoor unit of an air conditioner according to any one of claims 1-6, wherein, The second heat sink includes a first connecting hole that penetrates the second heat sink; the outdoor unit of the air conditioner includes a second fastener that passes through the first connecting hole to be connected to the fixing member.

8. The outdoor unit of an air conditioner according to any one of claims 1-6, wherein, The outdoor unit of the air conditioner also includes a module bracket, which is disposed between the power module and the circuit board body, and the module bracket is configured to support the power module.

9. The outdoor unit of an air conditioner according to any one of claims 1-6, wherein, The first heat sink has a positioning post at its bottom, and the second heat sink has a positioning hole corresponding to the positioning post. The positioning post is inserted into the positioning hole to position the first heat sink and the second heat sink.

10. The outdoor unit of the air conditioner according to claim 5 or 6, wherein, The fifth connection hole penetrates the power module; The first heat sink includes: a sixth connecting hole, which corresponds to the fifth connecting hole; The outdoor unit of the air conditioner includes: a fourth fastener, which passes through the fifth connecting hole and the sixth connecting hole to connect the power module and the first heat sink; The first heat sink includes: a second fixing hole, the second fixing hole penetrating the first heat sink; The second heat sink includes a third fixing hole, which is provided corresponding to the second fixing hole; The outdoor unit of the air conditioner includes: a first fastener, which passes through the second fixing hole and the third fixing hole to connect the first heat sink and the second heat sink; The second fixing hole and the fifth connecting hole are not concentrically arranged, and the power module and the second heat sink are not connected by fasteners.

11. The outdoor unit of the air conditioner according to claim 2, 4 or 10, wherein, The electrical assembly box includes a first fixing hole that penetrates the bottom of the electrical assembly box, and the first fixing hole is provided in correspondence with the second fixing hole.

12. The outdoor unit of the air conditioner according to claim 11, wherein, A limiting part is provided on the edge of the first fixing hole. The limiting part is located at the end of the first fixing hole away from the first heat sink and surrounds the edge of the first fixing hole. The circuit board body is provided with a first limiting hole corresponding to the limiting part, and the limiting part is inserted into the first limiting hole.

13. The outdoor unit of the air conditioner according to claim 12, wherein, The shortest distance between the outer surface of the limiting part and the first limiting hole is defined as the first spacing a, where a ≥ 0.2 mm.

14. The outdoor unit of the air conditioner according to claim 12, wherein, The shortest distance between the outer surface of the limiting part and the first limiting hole is defined as the first spacing a, where a ≥ 0.5 mm and a ≤ 1 mm.

15. The outdoor unit of the air conditioner according to claim 9, wherein, The shortest distance between the outer surface of the positioning post and the positioning hole is defined as the second spacing b, where b ≥ 0.15 mm.

16. The outdoor unit of the air conditioner according to claim 9, wherein, The shortest distance between the outer surface of the positioning post and the positioning hole is defined as the second spacing b, where b ≥ 0.15 mm and b ≤ 0.3 mm.

17. The outdoor unit of an air conditioner according to any one of claims 1-6, wherein, The electrical assembly box is provided with an installation port, and the power module is provided corresponding to the installation port. The first heat sink is connected to the bottom of the electrical assembly box and is provided corresponding to the installation port.

18. The outdoor unit of an air conditioner according to any one of claims 1-6, characterized in that, The receiving slot is located on the side of the second heat sink away from the first heat sink.

19. The outdoor unit of an air conditioner according to any one of claims 1-6, characterized in that, The fastener is detachably connected to the partition.

20. The outdoor unit of an air conditioner according to any one of claims 1-6, wherein, The fastener is integrally formed with the partition.

21. The outdoor unit of an air conditioner according to any one of claims 1-6, wherein, The fastener is connected to the electrical box.

22. An outdoor unit for an air conditioner, wherein, include: The housing has an internal cavity; A partition is disposed within the accommodating cavity, the partition dividing the accommodating cavity into a first chamber and a second chamber; The compressor is located within the first chamber; An outdoor heat exchange fan is installed in the second chamber. The outdoor heat exchange fan drives outdoor air into the housing, exchanges heat with the outdoor heat exchanger, and then blows it to the outside. An electrical assembly box, at least a portion of which is disposed within the first cavity, wherein at least a portion of which is a plastic component; The mounting component is connected to the electrical assembly box and is configured to mount the electrical assembly box. A circuit board, located within the electrical assembly box, comprises: The circuit board body is configured to carry electronic components, and the circuit board body is arranged in a vertical direction; A power module is connected to the circuit board body. The power module has pins and module connection holes and is positioned facing rearward. The first heat sink is disposed behind the power module and in contact with the power module. A refrigerant radiator is used to dissipate heat from the power module; the refrigerant radiator includes: The second heat sink is located behind the first heat sink and in contact with the first heat sink. A receiving groove is provided on the side of the second heat sink away from the first heat sink. Refrigerant pipe, wherein the refrigerant pipe is disposed within the receiving tank; A fastener is provided to connect to the second heat sink to secure the second heat sink.

23. An outdoor unit for an air conditioner, wherein, include: A housing, including a front cover located at the front of the housing, wherein a receiving cavity is provided therein; A partition is disposed within the accommodating cavity, the partition dividing the accommodating cavity into a first chamber and a second chamber; The compressor is located within the first chamber; An outdoor heat exchange fan is installed in the second chamber. The outdoor heat exchange fan drives outdoor air into the housing, exchanges heat with the outdoor heat exchanger, and then blows it to the outside. An electrical assembly box, at least a portion of which is disposed within the first cavity, wherein at least a portion of which is a plastic component; The mounting component is connected to the electrical assembly box and is configured to mount the electrical assembly box. A circuit board, located within the electrical assembly box, comprises: The circuit board body is configured to carry electronic components, and the circuit board body is arranged in a vertical direction; A power module is connected to the circuit board body. The power module is located on the side of the circuit board body away from the front cover. The power module has pins and module connection holes. The first heat sink is disposed behind the power module and in contact with the power module. A refrigerant radiator is used to dissipate heat from the power module; the refrigerant radiator includes: The second heat sink is located behind the first heat sink and in contact with the first heat sink. A receiving groove is provided on the side of the second heat sink away from the first heat sink. Refrigerant pipe, wherein the refrigerant pipe is disposed within the receiving tank; A fastener is provided to connect to the second heat sink to secure the second heat sink.

24. The outdoor unit of the air conditioner according to claim 22 or 23, wherein, The power module is connected to the first heat sink, and the first heat sink is connected to the second heat sink. The power module and the second heat sink are not connected by fasteners.

25. The outdoor unit of the air conditioner according to claim 24, wherein, The first heat sink includes a sixteenth connecting hole and a twenty-third connecting hole, the sixteenth connecting hole penetrating through the first heat sink; the twenty-third connecting hole corresponds to the module connecting hole and penetrates through the first heat sink. At least one fastener passes through the module connection hole and the twenty-third connection hole to connect the power module and the first heat sink. The second heat sink includes: a seventeenth connecting hole corresponding to the sixteenth connecting hole, the seventeenth connecting hole penetrating the second heat sink; at least one fastener passing through the sixteenth connecting hole and the seventeenth connecting hole to connect the first heat sink and the second heat sink; wherein the twenty-third connecting hole is not concentric with the sixteenth connecting hole.

26. The outdoor unit of the air conditioner according to claim 25, wherein, The fastener is detachably installed on the partition.

27. The outdoor unit of the air conditioner according to claim 25, wherein, The mounting component is made of sheet metal and can be detachably installed on the partition.

28. The outdoor unit of the air conditioner according to claim 25, wherein, At least one fastener passes through the circuit board body, the connection hole, and the first heat sink to connect the power module to the first heat sink; At least one fastener passes through the circuit board body, the first heat sink, and the second heat sink to connect the first heat sink and the second heat sink.

29. The outdoor unit of the air conditioner according to claim 28, wherein, The circuit board body includes a fifteenth connecting hole that penetrates the circuit board body; the first heat sink includes a sixteenth connecting hole that corresponds to the fifteenth connecting hole; the second heat sink includes a seventeenth connecting hole that corresponds to the sixteenth connecting hole. The mounting component is detachably connected to the partition plate, and fasteners pass through the fifteenth, sixteenth, and seventeenth connecting holes to connect the first heat sink to the second heat sink.

30. The outdoor unit of the air conditioner according to claim 25, wherein, The electrical assembly box includes: a first assembly port, which extends through the electrical assembly box; and a first heat sink corresponding to the first assembly port.

31. The outdoor unit of the air conditioner according to claim 25, wherein, The electrical assembly box includes a connecting post with an eighteenth connecting hole; the circuit board abuts against the connecting post, and fasteners pass through the circuit board and the eighteenth connecting hole to fix the circuit board to the electrical assembly box.

32. The outdoor unit of the air conditioner according to claim 25, wherein, The mounting component includes a nineteenth connecting hole that penetrates the mounting component; the electrical box includes a twentieth connecting hole that corresponds to the nineteenth connecting hole. Fasteners pass through the nineteenth and twentieth connecting holes to connect the electrical box and the mounting component.

33. The outdoor unit of the air conditioner according to claim 25, wherein, The circuit board body includes a twenty-first connecting hole that penetrates the circuit board body; the mounting component includes a twenty-second connecting hole that corresponds to the twenty-first connecting hole. The outdoor unit of the air conditioner includes a seventh fastener, which passes through the twenty-first connecting hole and the twenty-second connecting hole to connect the circuit board body and the mounting component.

34. The outdoor unit of the air conditioner according to claim 25, wherein, The circuit board body includes a mounting hole that penetrates the mounting component; the mounting component includes a mounting pin that engages with the mounting hole. The assembly pin is inserted into the assembly hole to connect the circuit board body and the mounting component.

35. An air conditioner, comprising: The outdoor unit of the air conditioner as described in any one of claims 1 to 34 is installed in an outdoor space and configured to dissipate heat from the outdoor environment; The indoor unit of the air conditioner is installed in the indoor space and is connected to the outdoor unit of the air conditioner via pipes.

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