Air conditioner outdoor unit

Abstract

The utility model discloses an outdoor unit of air conditioner, include: electric control box, wherein be provided with control chip, refrigerant cooling pipe includes second cooling pipe, and second cooling pipe exchanges heat with control chip, still be provided with rear limiting piece and front limiting piece in electric control box, and rear limiting piece is set up adjacent the rear end of second cooling pipe, and front limiting piece is set up adjacent the front end of second cooling pipe, and rear limiting piece and front limiting piece all are in the one side of second cooling pipe left and right direction and all are provided with limiting slot, and limiting slot and second cooling pipe limit cooperation, to limit second cooling pipe and move upward. Thus, through setting up front limiting piece and rear limiting piece in electric control box, and front limiting piece and rear limiting piece can all with second cooling pipe limit cooperation, like this can prevent control board disassembly maintenance and take second cooling pipe out, to can guarantee the structural reliability of second cooling pipe, can prevent refrigerant leakage, and further can guarantee the maintenance safety and convenience of outdoor unit of air conditioner.

Description

Technical Field

[0001] This utility model relates to the field of air conditioning technology, and in particular to an outdoor unit of an air conditioner. Background Technology

[0002] To address the issue of poor heat dissipation of control boards under high-temperature conditions, the air conditioning industry typically employs refrigerant cooling technology. One existing structure for outdoor refrigerant cooling electrical boxes is a combination of upper and lower radiators with refrigerant pipes sandwiched between them. This structure aims to accelerate heat dissipation from the chips on the control board and prevent overheating and malfunction.

[0003] In the existing technology, the refrigerant pipe is directly connected to the main refrigerant pipe, which is subject to greater vibration. To prevent the vibration from damaging the control board, the refrigerant pipe and the control board must be floating. However, this can lead to the refrigerant pipe being pulled out along with the control board during maintenance, resulting in deformation or even leakage of the refrigerant pipe. Utility Model Content

[0004] This utility model aims to solve at least one of the technical problems existing in the prior art. Therefore, one objective of this utility model is to provide an outdoor unit for an air conditioner that prevents the second cooling pipe from being pulled out during disassembly and maintenance of the control board, thereby ensuring the structural reliability of the second cooling pipe, preventing refrigerant leakage, and ultimately ensuring the safety and convenience of maintaining the outdoor unit.

[0005] To achieve the above objectives, an outdoor unit of an air conditioner is provided according to an embodiment of the present invention, comprising: a compressor having a compressor inlet and a compressor outlet; an outdoor heat exchanger for exchanging heat with outdoor air, wherein the inlet of the outdoor heat exchanger is connected to the compressor outlet; an electrical control box having a control chip disposed therein; and a refrigerant cooling pipe having an inlet connected to the outlet of the outdoor heat exchanger and an outlet connected to the compressor inlet, wherein the refrigerant cooling pipe extends at least partially into the electrical control box and exchanges heat with the control chip; characterized in that the electrical control box further comprises a control board, wherein the control chip is disposed on the left side of the control board; and the refrigerant cooling pipe is... The cooling system includes: a first cooling pipe, which is disposed on the rear side of the control board and extends in the left-right direction; and a second cooling pipe, which is disposed on the left side of the control board and extends in the front-back direction, with the rear end of the second cooling pipe connected to the left end of the first cooling pipe, and the second cooling pipe exchanging heat with the control chip; wherein, the electrical control box is also provided with a rear limiting member and a front limiting member, the rear limiting member being disposed near the rear end of the second cooling pipe, and the front limiting member being disposed near the front end of the second cooling pipe, both the rear limiting member and the front limiting member being located on one side in the left-right direction of the second cooling pipe and both being provided with limiting grooves, the limiting grooves cooperating with the second cooling pipe to limit the upward movement of the second cooling pipe.

[0006] According to the embodiment of the present utility model, the outdoor unit of the air conditioner is provided with a front limiter and a rear limiter in the electrical control box, and both the front limiter and the rear limiter can cooperate with the second cooling pipe for limiting. This can prevent the second cooling pipe from being taken out during the disassembly and maintenance of the control board, thereby ensuring the structural reliability of the second cooling pipe, preventing refrigerant leakage, and ensuring the safety and convenience of maintenance of the outdoor unit of the air conditioner.

[0007] According to some embodiments of the present invention, the rear limiting member extends downward from top to bottom and is located above the second cooling pipe. The lower end of the rear limiting member is provided with the limiting groove, which is arc-shaped and adapted to limit at least a portion of the circumferential sidewall of the second cooling pipe; and / or the front limiting member extends upward from bottom to top and is at least partially higher than the second cooling pipe. The upper end of the front limiting member is provided with the limiting groove, which is arc-shaped and adapted to limit at least a portion of the circumferential sidewall of the second cooling pipe.

[0008] According to some embodiments of this utility model, the first cooling pipe includes: a first refrigerant inlet pipe and a first refrigerant outlet pipe, both the first refrigerant inlet pipe and the first refrigerant outlet pipe being located on the rear side of the control panel and extending in the left-right direction, and the first refrigerant inlet pipe and the first refrigerant outlet pipe being spaced apart in the front-back direction; the second cooling pipe includes: a second refrigerant inlet pipe and a second refrigerant outlet pipe, both the second refrigerant inlet pipe and the second refrigerant outlet pipe being located on the left side of the control panel and extending in the front-back direction, the second refrigerant inlet pipe and the second refrigerant outlet pipe being spaced apart in the left-right direction, the left end of the first refrigerant inlet pipe being connected to the rear end of the second refrigerant inlet pipe, the left end of the first refrigerant outlet pipe being connected to the rear end of the second refrigerant outlet pipe, the front end of the second refrigerant inlet pipe being connected to the front end of the second refrigerant outlet pipe, the inlet of the refrigerant cooling pipe being located at the right end of the first refrigerant inlet pipe, and the outlet of the refrigerant cooling pipe being located at the right end of the first refrigerant outlet pipe.

[0009] According to some embodiments of the present invention, the rear limiting member includes: a first rear limiting member, which is located on the side of the second refrigerant inlet pipe that is away from the second refrigerant outlet pipe in the left-right direction; and a second rear limiting member, which is arranged opposite to the first rear limiting member in the left-right direction and is located on the side of the second refrigerant outlet pipe that is away from the second refrigerant inlet pipe in the left-right direction. The front limiting member includes: a first front limiting member, which is located on the side of the second refrigerant inlet pipe that is away from the second refrigerant outlet pipe in the left-right direction; and a second front limiting member, which is arranged opposite to the first front limiting member in the left-right direction and is located on the side of the second refrigerant outlet pipe that is away from the second refrigerant inlet pipe in the left-right direction.

[0010] According to some embodiments of the present invention, a vibration damping component is also provided between the rear side wall of the electrical control box and the first cooling pipe.

[0011] According to some embodiments of the present invention, a heat sink is provided inside the electrical control box, the upper side of the heat sink contacts the control chip for heat exchange, a heat dissipation groove is provided inside the heat sink, and the second cooling pipe extends at least partially into the heat sink and is in contact with the inner wall of the heat dissipation groove.

[0012] According to some embodiments of the present invention, the outdoor unit of the air conditioner further includes a chip bracket, which is supported between the control chip and the control board so that the control chip is in contact with the upper side of the heat sink.

[0013] According to some embodiments of the present invention, the heat sink includes: a lower heat sink with a lower clearance groove; an upper heat sink disposed above the lower heat sink and with an upper clearance groove; the upper clearance groove and the lower clearance groove are disposed opposite to each other and form the heat dissipation groove; and the control chip is disposed above the upper heat sink and contacts the upper heat sink for heat exchange.

[0014] According to some embodiments of the present invention, the lower heat sink and the electrical control box are connected and fixed by fasteners. The lower heat sink is provided with a first plug-in component, and the control board is located on the upper side of the lower heat sink and is provided with a second plug-in component. The first plug-in component and the second plug-in component are plugged in and engaged.

[0015] According to some embodiments of the present invention, an air inlet is provided on the rear side of the electrical control box, an air outlet is provided on the front side of the electrical control box and is connected to the air inlet, and the radiator is adjacent to the air outlet and is arranged opposite to the air outlet in the front-rear direction.

[0016] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0017] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 This is a partial schematic diagram of the outdoor unit of an air conditioner according to an embodiment of the present utility model; Figure 2 This is a partial schematic diagram of the outdoor unit of an air conditioner according to an embodiment of the present utility model from another perspective; Figure 3 for Figure 2 A schematic diagram of region A in the middle; Figure 4 This is a partial schematic diagram of the outdoor unit of an air conditioner according to an embodiment of the present utility model from another perspective; Figure 5 This is a partial schematic diagram of the outdoor unit of an air conditioner according to an embodiment of the present utility model from another perspective; Figure 6 This is a schematic diagram of the electrical control box according to an embodiment of the present utility model; Figure 7 This is a schematic diagram of the electrical control box from another perspective according to an embodiment of the present utility model; Figure 8 This is a schematic diagram of the electrical control box from another perspective according to an embodiment of the present utility model; Figure 9This is a schematic diagram of the electrical control box cover according to an embodiment of the present utility model; Figure 10 This is a partial schematic diagram of the outdoor unit of an air conditioner according to an embodiment of the present utility model from another perspective; Figure 11 This is a partial schematic diagram of the outdoor unit of an air conditioner according to an embodiment of the present utility model from another perspective; Figure 12 This is a schematic diagram of a partition according to an embodiment of the present utility model.

[0018] Figure label: 100. Outdoor unit of air conditioner; 10. Compressor; 20. Electrical control box; 21. Control chip; 22. Control board; 23. Rear limit component; 231. First rear limit component; 232. Second rear limit component; 24. Front limit component; 241. First front limit component; 242. Second front limit component; 25. Limiting groove; 26. Air inlet; 27. Air outlet; 28. Electrical control box body; 29. ​​Electrical control box cover; 30. Refrigerant cooling pipe; 31. First cooling pipe; 311. First refrigerant inlet pipe; 312. First refrigerant outlet pipe; 32. Second cooling pipe; 321. Second refrigerant inlet pipe; 322. Second refrigerant outlet pipe; 40. Vibration damping components; 50. Radiator; 51. Heat dissipation groove; 52. Lower radiator; 521. Lower clearance groove; 53. Upper radiator; 531. Upper clearance groove; 60. Chip bracket; 70. First water-blocking rib; 80. Second water-blocking rib; 90. First drain hole; 110. Second drain hole; 120. Cooling fan; 130. Partition plate; 1301. Notch; 140. Outer shell; 150. Air duct cavity; 160. Compressor cavity; 170. Insulating pad; 180. Wire clamp; 190. Wire trough; 210. Baffle rib; 220. Outdoor heat exchanger. Detailed Implementation

[0019] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0020] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to 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 utility model.

[0021] In the description of this utility model, "first feature" and "second feature" may include one or more of the features.

[0022] In the description of this utility model, "multiple" means two or more, and "several" means one or more.

[0023] The following is based on Figures 1-12 This invention describes an embodiment of an air conditioner outdoor unit 100.

[0024] According to an embodiment of the present invention, the outdoor unit 100 of the air conditioner includes a refrigerant circulation loop, an indoor fan, an outdoor fan, a power consumption sensor, and a controller.

[0025] In an embodiment of this utility model, the refrigerant circulation loop of the air conditioner consists of a compressor 10, a condenser, an expansion valve, and an evaporator. The refrigerant circulates between the compressor 10, the condenser, the expansion valve, and the evaporator, thereby forming a refrigerant circulation loop.

[0026] The compressor 10 can compress low-temperature, low-pressure refrigerant into high-temperature, high-pressure refrigerant. This heat can be exchanged with indoor air to heat the indoor air, or with outdoor air to cool the indoor air. In addition, the compressor 10 can provide power for the circulation of the refrigerant.

[0027] One of the condensers and evaporator is the outdoor heat exchanger 220, and the other is the indoor heat exchanger. When the refrigerant enters the outdoor heat exchanger 220, it exchanges heat with the outdoor air. When the refrigerant enters the indoor heat exchanger, it exchanges heat with the indoor air.

[0028] When the air conditioner is in cooling mode, heat is transferred from the refrigerant to the outdoor air in the outdoor heat exchanger 220, and heat is transferred from the indoor air to the refrigerant in the indoor heat exchanger. This allows the refrigerant to dissipate indoor heat to the outdoor environment, thereby lowering the indoor temperature.

[0029] When the air conditioner is in heating mode, heat is transferred from the outdoor air to the refrigerant in the outdoor heat exchanger 220, and heat is transferred from the refrigerant to the indoor air in the indoor heat exchanger. This allows the refrigerant to absorb heat from the outdoor environment and transfer the heat to the indoor environment, thereby raising the indoor temperature.

[0030] An expansion valve can change the pressure of the refrigerant in the refrigerant circulation loop. By throttling and reducing pressure, the expansion valve converts the medium-temperature, high-pressure liquid refrigerant into low-temperature, low-pressure wet vapor, which then absorbs heat in the evaporator to achieve a cooling effect.

[0031] Furthermore, the expansion valve can automatically adjust the flow rate according to the superheat of the gaseous refrigerant at the evaporator outlet, maintaining a stable indoor temperature and meeting the requirements of refrigerant circulation. More importantly, the expansion valve can prevent liquid refrigerant from entering the compressor 10, avoiding liquid hammer and protecting the compressor 10 from damage.

[0032] Indoor fans are used to rotate and drive indoor air through an indoor heat exchanger, enabling heat exchange between the refrigerant and the indoor air. The action of the indoor fan accelerates the flow of indoor air to the heat exchanger, thereby speeding up the heat exchange between the indoor air and the refrigerant.

[0033] The outdoor fan is used to drive outdoor air through the outdoor heat exchanger, so that the refrigerant and the outdoor air can exchange heat. Under the action of the outdoor fan, the flow of outdoor air to the outdoor heat exchanger 220 can be accelerated, thereby accelerating the heat exchange between the outdoor air and the refrigerant.

[0034] A refrigerant pipe connects the outdoor heat exchanger 220 and the compressor 10. The refrigerant pipe is used to transfer the refrigerant between the compressor 10 and the outdoor heat exchanger 220, so as to realize the transfer of heat between the compressor 10 and the outdoor heat exchanger 220.

[0035] Furthermore, the outdoor unit 100 of the air conditioner also includes an electrical control box 20, which contains a control chip 21 to realize the control function of the outdoor unit 100 of the air conditioner.

[0036] Furthermore, the outdoor unit 100 of the air conditioner also includes a refrigerant cooling pipe 30. The inlet of the refrigerant cooling pipe 30 is connected to the outlet of the outdoor heat exchanger 220, and the outlet of the refrigerant cooling pipe 30 is connected to the inlet of the compressor 10. This allows the high-temperature refrigerant to flow out of the compressor 10 and enter the outdoor heat exchanger 220 to dissipate heat and cool down into a low-temperature refrigerant. The low-temperature refrigerant then flows into the refrigerant cooling pipe 30, and after passing through the refrigerant cooling pipe 30, it flows back to the compressor 10 to be compressed, thereby realizing the circulation of the refrigerant.

[0037] Furthermore, the refrigerant cooling pipe 30 extends at least partially into the electrical control box 20 and exchanges heat with the control chip 21. In this way, after the refrigerant flows through the outdoor heat exchanger 220 and cools down, the low-temperature refrigerant re-enters the refrigerant cooling pipe 30. This can remove the heat generated by the control chip 21 when it is working in the electrical control box 20, so that the control chip 21 can be cooled down quickly and prevent the control chip 21 from failing due to heat accumulation.

[0038] Furthermore, the control box 20 is also equipped with a control board 22, and the control chip 21 is located on the left side of the control board 22. This allows the control chip 21 to avoid the control board 22, so as to prevent the heat generated by the control chip 21 from being transferred to the control board 22, thereby ensuring the working efficiency of the control board 22.

[0039] Furthermore, the refrigerant cooling pipe 30 includes a first cooling pipe 31 and a second cooling pipe 32. The first cooling pipe 31 is located on the rear side of the control board 22 and extends in the left and right direction. This allows the first cooling pipe 31 to avoid the control chip 21, thereby improving the structural compactness of the electrical control box 20. On the other hand, it facilitates the connection between the first cooling pipe 31 and the compressor 10 and the outdoor heat exchanger 220, so as to ensure that the refrigerant flows through the interior of the electrical control box 20.

[0040] In an embodiment of this utility model, a baffle 210 is provided on the electrical control box 20. The baffle 210 can separate the first cooling pipe 31 from the control to reduce the damage to the control board 22 caused by the vibration of the first cooling pipe 31.

[0041] Furthermore, the second cooling pipe 32 is located on the left side of the control board 22 and extends in the front-to-back direction. The rear end of the second cooling pipe 32 is connected to the left end of the first cooling pipe 31. This allows the refrigerant to flow between the first cooling pipe 31 and the second cooling pipe 32. The refrigerant flowing out of the outdoor heat exchanger 220 can flow into the second cooling pipe 32, and the refrigerant in the second cooling pipe 32 can flow to the compressor 10. With this arrangement, the low-temperature refrigerant can exchange heat with the control chip 21 in the second cooling pipe 32 to remove the heat generated by the control chip 21 and improve the heat dissipation efficiency of the control chip 21. In this way, even under high-temperature conditions, the control chip 21 can be guaranteed to work normally.

[0042] If the control board 22 needs to be disassembled for maintenance of the control box 20, the second cooling pipe 32 will be unrestricted after the control board 22 is removed. This could easily cause the second cooling pipe 32 to be pulled out or move inside the control box 20, which could easily cause the refrigerant cooling pipe 30 to deform. More seriously, it could lead to refrigerant leakage.

[0043] Furthermore, the electrical control box 20 is also provided with a rear limiter 23 and a front limiter 24. The rear limiter 23 is located near the rear end of the second cooling pipe 32, and the front limiter 24 is located near the front end of the second cooling pipe 32. Both the rear limiter 23 and the front limiter 24 are located on one side of the second cooling pipe 32 in the left-right direction, and both are provided with a limit groove 25. The limit groove 25 is matched with the second cooling pipe 32 to limit the upward movement of the second cooling pipe 32.

[0044] This design prevents the second cooling pipe 32 from being pulled out during disassembly and maintenance of the control board 22, thereby ensuring the structural reliability of the second cooling pipe 32, preventing refrigerant leakage, and thus ensuring the safety and convenience of maintenance of the outdoor unit 100 of the air conditioner.

[0045] Furthermore, with this configuration, the refrigerant cooling pipe 30 can be quickly positioned in the electrical control box 20 by the front limiting member 24 and the rear limiting member 23, so as to realize the pre-installation of the refrigerant cooling pipe 30 in the electrical control box 20, thereby reducing the welding stations on the assembly line, which can reduce the production input of the outdoor unit 100 of the air conditioner and improve the overall assembly production efficiency.

[0046] In the embodiments of this utility model, the first cooling pipe 31 extends to the left and right, and the second cooling pipe 32 extends to the front and back. This allows the refrigerant cooling pipe 30 to have a 90° bend, which can weaken the vibration on the refrigerant cooling pipe 30 and reduce the impact of the vibration on the control board 22, thereby improving the reliability of the control board 22.

[0047] According to some embodiments of this utility model, combined with Figure 1 , Figure 6 and Figure 7 As shown, the rear limiting member 23 extends downward and is located above the second cooling pipe 32. The lower end of the rear limiting member 23 is provided with a limiting groove 25, which can prevent the rear limiting member 23 from moving the second cooling pipe 32 upward and prevent the second cooling pipe 32 from being displaced and deformed, resulting in refrigerant leakage.

[0048] Furthermore, the limiting groove 25 of the rear limiting member 23 is arc-shaped. This arrangement allows the rear limiting member 23 to be adapted to at least part of the circumferential sidewall of the second cooling pipe 32, thereby increasing the contact area between the limiting groove 25 on the rear limiting member 23 and the second cooling pipe 32. This improves the reliability of the rear limiting member 23 in limiting the second cooling pipe 32.

[0049] According to some other embodiments of the present invention, in conjunction with Figure 1 , Figure 6 and Figure 7As shown, the front limiting member 24 extends from bottom to top and is at least partially higher than the second cooling pipe 32. The upper end of the front limiting member 24 is provided with a limiting groove 25, so that the front limiting member 24 can provide support for the lower part of the second cooling pipe 32 to prevent the second cooling pipe 32 from moving downward and to prevent the displacement and deformation of the second cooling pipe 32 from causing refrigerant leakage.

[0050] Furthermore, the limiting groove 25 of the front limiting member 24 is arc-shaped. This arrangement allows the front limiting member 24 to be adapted to at least part of the circumferential sidewall of the second cooling pipe 32, thereby increasing the contact area between the limiting groove 25 on the front limiting member 24 and the second cooling pipe 32. This improves the reliability of the front limiting member 24 in limiting the second cooling pipe 32.

[0051] According to some other embodiments of the present invention, in conjunction with Figure 1 , Figure 6 and Figure 7 As shown, the rear limiting member 23 extends downward and is located above the second cooling pipe 32. The lower end of the rear limiting member 23 is provided with a limiting groove 25. The limiting groove 25 of the rear limiting member 23 is arc-shaped and is adapted to limit at least a portion of the side wall of the second cooling pipe 32 in the circumferential direction. The front limiting member 24 extends upward and is at least partially higher than the second cooling pipe 32. The upper end of the front limiting member 24 is provided with a limiting groove 25. The limiting groove 25 of the front limiting member 24 is arc-shaped and is adapted to limit at least a portion of the side wall of the second cooling pipe 32 in the circumferential direction.

[0052] With this configuration, on the one hand, the rear limiter 23 prevents the second cooling pipe 32 from moving upward, and the front limiter 24 prevents the second cooling pipe 32 from moving downward, thus preventing the second cooling pipe 32 from displacing and deforming, which could lead to refrigerant leakage.

[0053] On the other hand, the refrigerant cooling pipe 30 can be pre-soldered on the final assembly line instead of being pre-soldered. Instead, thermal grease can be applied in a cleanroom environment in the electronics workshop, and the refrigerant cooling pipe 30 can be pre-installed on the electrical control box 20. In this way, thermal grease does not need to be applied on the final assembly line.

[0054] This means that only one welding station needs to be added to the final assembly line, eliminating the need for a dedicated production line. This reduces the factory's investment and improves the effectiveness of applying thermal grease, thereby increasing the production efficiency of the final assembly line.

[0055] Combination Figure 1 , Figure 2 , Figure 5 , Figure 10 and Figure 11 As shown, the first cooling pipe 31 includes a first refrigerant inlet pipe 311 and a first refrigerant outlet pipe 312. The refrigerant flowing out from the outdoor heat exchanger 220 flows into the refrigerant cooling pipe 30 through the first refrigerant inlet pipe 311, and the refrigerant flowing out from the second cooling pipe 32 flows to the compressor 10 through the first refrigerant outlet pipe 312.

[0056] Furthermore, the first inlet refrigerant pipe 311 and the first outlet refrigerant pipe 312 are both located behind the control board 22 and extend in the left and right directions. This allows the first inlet refrigerant pipe 311 and the first outlet refrigerant pipe 312 to avoid the control board 22, so as to facilitate the arrangement of the first inlet refrigerant pipe 311 and the first outlet refrigerant pipe 312 in the electrical control box 20.

[0057] Furthermore, the first inlet refrigerant pipe 311 and the first outlet refrigerant pipe 312 are spaced apart in the front-to-back direction. This can prevent heat exchange between the first inlet refrigerant pipe 311 and the first outlet refrigerant pipe 312, and ensure the reliability of the refrigerant in the refrigerant cooling pipe 30 in carrying the heat from the control chip 21 out of the control chip 21.

[0058] In the embodiments of this utility model, combined with Figure 6 As shown, the electrical control box 20 is provided with a first water-blocking rib 70 and a second water-blocking rib 80. The first water-blocking rib 70 and the second water-blocking rib 80 can not only fix the direction of the first refrigerant inlet pipe 311 and the first refrigerant outlet pipe 312 in the electrical control box 20 to prevent the first refrigerant inlet pipe 311 and the first refrigerant outlet pipe 312 from displacement and deformation, but also prevent rainwater from entering the electrical control box 20, thereby enhancing the waterproof performance of the electrical control box 20.

[0059] Furthermore, on the electrical control box 20, a first drainage hole 90 is provided between the baffle 210 and the first water-blocking rib 70, and a second drainage hole 110 is provided between the first water-blocking rib 70 and the second water-blocking rib 80. This allows water in the electrical control box 20 to be drained in a timely manner, thereby reducing the impact of rainwater on the control board 22.

[0060] Furthermore, combined Figure 1 , Figure 2 , Figure 3 and Figure 5 As shown, the second cooling pipe 32 includes a second refrigerant inlet pipe 321 and a second refrigerant outlet pipe 322, and the refrigerant flows from the second refrigerant inlet pipe 321 to the second refrigerant outlet pipe 322.

[0061] Furthermore, the second refrigerant inlet pipe 321 and the second refrigerant outlet pipe 322 are both located on the left side of the control board 22, so that the second refrigerant inlet pipe 321 and the second refrigerant outlet pipe 322 correspond to the control chip 21, so that the second refrigerant inlet pipe 321 and the second refrigerant outlet pipe 322 can directly contact the control chip 21.

[0062] Furthermore, the second refrigerant inlet pipe 321 and the second refrigerant outlet pipe 322 extend in the front-to-back direction, which increases the contact area between the second refrigerant inlet pipe 321 and the second refrigerant outlet pipe 322 and the control chip 21, so that the refrigerant in the second refrigerant inlet pipe 321 and the second refrigerant outlet pipe 322 can absorb more heat generated by the control chip 21.

[0063] Furthermore, the second refrigerant inlet pipe 321 and the second refrigerant outlet pipe 322 are spaced apart in the left and right directions. This can prevent heat exchange between the second refrigerant inlet pipe 321 and the second refrigerant outlet pipe 322, and allow the refrigerant to fully absorb the heat on the control chip 21, thereby improving the utilization rate of the refrigerant in the second refrigerant inlet pipe 321 and the second refrigerant outlet pipe 322.

[0064] Furthermore, the left end of the first refrigerant inlet pipe 311 is connected to the rear end of the second refrigerant inlet pipe 321, the left end of the first refrigerant outlet pipe 312 is connected to the rear end of the second refrigerant outlet pipe 322, the front end of the second refrigerant inlet pipe 321 is connected to the front end of the second refrigerant outlet pipe 322, the inlet of the refrigerant cooling pipe 30 is located at the right end of the first refrigerant inlet pipe 311, and the outlet of the refrigerant cooling pipe 30 is located at the right end of the first refrigerant outlet pipe 312.

[0065] like Figure 5 As shown, the refrigerant flow path is: compressor 10 - outdoor heat exchanger 220 - inlet of refrigerant cooling pipe 30 - first refrigerant inlet pipe 311 = second refrigerant inlet pipe 321 - second refrigerant outlet pipe 322 - first refrigerant outlet pipe 312 - outlet of refrigerant cooling pipe 30 - compressor 10.

[0066] When the refrigerant flows in the second refrigerant inlet pipe 321 and the second refrigerant outlet pipe 322, the refrigerant can absorb the heat on the control chip 21. When the refrigerant flows out of the second refrigerant outlet pipe 322, it can carry away the heat on the control chip 21, so as to realize the heat dissipation of the control chip 21 by the refrigerant cooling pipe 30.

[0067] Combination Figure 1 , Figure 5 , Figure 6 and Figure 7 As shown, the rear limiting member 23 includes a first rear limiting member 231 and a second rear limiting member 232. Using two rear limiting members 23 can increase the reliability of the rear limiting member 23 in limiting the second cooling pipe 32.

[0068] Furthermore, the first rear limiting member 231 is located on the side of the second refrigerant inlet pipe 321 that is away from the second refrigerant outlet pipe 322 in the left-right direction, and the second rear limiting member 232 and the first rear limiting member 231 are arranged opposite each other in the left-right direction and are located on the side of the second refrigerant outlet pipe 322 that is away from the second refrigerant inlet pipe 321 in the left-right direction.

[0069] This configuration allows the first rear limiting member 231 and the second rear limiting member 232 to be positioned opposite each other at the rear end of the second cooling pipe 32. The first rear limiting member 231 engages with the second refrigerant inlet pipe 321, and the second rear limiting member 232 engages with the second refrigerant outlet pipe 322. This ensures the reliability of the rear limiting member 23 in limiting the second refrigerant inlet pipe 321 and the second refrigerant outlet pipe 322, respectively.

[0070] Furthermore, the front limiting member 24 includes a first front limiting member 241 and a second front limiting member 242. Using two front limiting members 24 can increase the reliability of the front limiting member 24 in limiting the second cooling pipe 32.

[0071] The first front limiting member 241 is located on the side of the second refrigerant inlet pipe 321 that is away from the second refrigerant outlet pipe 322 in the left-right direction. The second front limiting member 242 and the first front limiting member 241 are arranged opposite each other in the left-right direction and are located on the side of the second refrigerant outlet pipe 322 that is away from the second refrigerant inlet pipe 321 in the left-right direction.

[0072] This configuration allows the first front limiting member 241 and the second front limiting member 242 to be positioned opposite each other at the front end of the second cooling pipe 32. The first front limiting member 241 is engaged with the second refrigerant inlet pipe 321, and the second front limiting member 242 is engaged with the second refrigerant outlet pipe 322. This ensures the reliability of the front limiting member 24 in limiting the second refrigerant inlet pipe 321 and the second refrigerant outlet pipe 322, respectively.

[0073] In summary, the first rear limiting member 231 and the first front limiting member 241 can pre-install the second refrigerant inlet pipe 321 to ensure the structural reliability of the second refrigerant inlet pipe 321 on the assembly line. The second rear limiting member 232 and the second front limiting member 242 can pre-install the second refrigerant outlet pipe 322 to ensure the structural reliability of the second refrigerant outlet pipe 322 on the assembly line.

[0074] Combination Figure 1 and Figure 2 As shown, a vibration damping component 40 is also provided between the rear wall of the electrical control box 20 and the first cooling pipe 31. Specifically, the first cooling pipe 31 is located at the rear end of the control board 22 to avoid the arrangement of the control board 22. At this time, the distance between the first cooling pipe 31 and the rear side of the electrical control box 20 is relatively small, and the refrigerant cooling pipe 30 is connected to the main refrigerant pipe in the outdoor unit 100 of the air conditioner. This makes it easy for the first cooling pipe 31 to collide and rub against the rear wall of the electrical control box 20 during the operation of the outdoor unit 100 of the air conditioner. This will not only affect the structural reliability of the control board 22 in front of the first cooling pipe 31, but also generate noise and affect the user experience.

[0075] In an embodiment of this utility model, a vibration damping member 40 is added between the rear side wall of the electrical control box 20 and the first cooling pipe 31. This can prevent the first cooling pipe 31 from colliding with the rear side wall of the electrical control box 20. Consequently, the first cooling pipe 31 and the rear side wall of the electrical control box 20 will not collide or rub against each other during the operation of the outdoor unit 100 of the air conditioner. This arrangement not only improves the structural reliability of the first cooling pipe 31, but also reduces the noise generated by the outdoor unit 100 of the air conditioner during operation.

[0076] Combination Figure 1 , Figure 3 and Figure 4 As shown, a heat sink 50 is provided inside the electrical control box 20. The upper side of the heat sink 50 contacts the control chip 21 for heat exchange. A heat dissipation groove 51 is provided inside the heat sink 50. The second cooling pipe 32 extends at least partially into the heat sink 50 and is in contact with the inner wall of the heat dissipation groove 51.

[0077] Specifically, the contact area between the second cooling pipe 32 and the control chip 21 is small. If the second cooling pipe 32 is made to directly contact the control chip 21 for heat dissipation, the heat exchange efficiency will be very low.

[0078] In an embodiment of this utility model, by providing a second cooling pipe 32 that extends at least partially into the heat sink 50, and by having the upper side of the heat sink 50 in contact with the control chip 21, the upper side of the heat sink 50 can be in close contact with the control chip 21, thereby increasing the heat dissipation area of ​​the control chip 21 and thus improving the heat dissipation efficiency of the control chip 21.

[0079] Furthermore, to improve the heat exchange efficiency between the heat sink 50 and the second cooling pipe 32, a heat dissipation groove 51 is provided inside the heat sink 50. The inner wall of the heat dissipation groove 51 is in contact with the pipe wall surface of the second cooling pipe 32. This increases the contact area between the second cooling pipe 32 and the heat sink 50, thereby improving the heat exchange efficiency between the heat sink 50 and the second cooling pipe 32. In this way, the heat exchange efficiency between the control chip 21 and the refrigerant in the second cooling pipe 32 can be improved, thereby improving the heat dissipation efficiency of the control chip 21.

[0080] Combination Figures 1-4 As shown, the outdoor unit 100 of the air conditioner also includes a chip bracket 60, which is supported between the control chip 21 and the control board 22 so that the control chip 21 is in contact with the upper side of the radiator 50.

[0081] Specifically, since there may be multiple control chips 21, and the models of these multiple control chips 21 are different, the lower surfaces of the control chips 21 may not be on the same plane. This will result in some control chips 21 being able to contact the upper side of the heat sink 50 for heat dissipation, while other control chips 21 will not be able to contact the upper side of the heat sink 50.

[0082] Furthermore, in this embodiment of the present invention, a chip support 60 is provided, and the chip support 60 is connected between the control chip 21 and the control board 22. In this way, the control chip 21 can be attached to the upper side of the heat sink 50, thereby reducing the manufacturing difficulty of the heat sink 50 and increasing the contact area between the control chip 21 and the upper side of the heat sink 50. This is beneficial to improving the heat exchange efficiency between the control chip 21 and the heat sink 50 and improving the heat dissipation effect of the control chip 21.

[0083] Combination Figures 1-4 As shown, the radiator 50 includes an upper radiator 53 and a lower radiator 52. The upper radiator 53 is disposed on the upper side of the lower radiator 52. The second cooling pipe 32 is disposed between the upper radiator 53 and the lower radiator 52. This facilitates the installation of the second cooling pipe 32 with the radiator 50, and allows the second cooling pipe 32 to extend into the radiator 50 at least partially.

[0084] Furthermore, a lower clearance groove 521 is provided on the lower radiator 52, and an upper clearance groove 531 is provided on the upper radiator 53. The upper clearance groove 531 and the lower clearance groove 521 are arranged opposite to each other and form a heat dissipation groove 51. This makes the axial cross section of the heat dissipation groove 51 circular, so that the heat dissipation groove 51 fits better with the pipe wall surface of the second cooling pipe 32. This increases the contact area between the second cooling pipe 32 and the radiator 50, thereby improving the heat dissipation efficiency of the refrigerant in the second cooling pipe 32 and the radiator 50.

[0085] Furthermore, the control chip 21 is positioned above the upper heat sink 53 and contacts the upper heat sink 53 for heat exchange. The heat from the control chip 21 is transferred to the refrigerant in the second cooling pipe 32 through the heat sink 50. The heat transfer path is divided into two paths: one path is: control chip 21 - upper heat sink 53 - second cooling pipe 32, and the other path is: control chip 21 - upper heat sink 53 - lower heat sink 52 - second cooling pipe 32.

[0086] This configuration allows as much heat as possible to be transferred to the refrigerant in the second cooling pipe 32, thereby improving the heat exchange efficiency between the control chip 21 and the refrigerant, and thus enhancing the heat dissipation effect of the refrigerant on the control chip 21.

[0087] According to an embodiment of the present invention, the lower heat sink 52 and the electrical control box 20 are connected and fixed by fasteners. A first connector is provided on the lower heat sink 52, and the control board 22 is located on the upper side of the lower heat sink 52 and is provided with a second connector. The first connector and the second connector are plugged in and engaged.

[0088] Specifically, the first and second connectors have simple structures. The first and second connectors can quickly connect the lower radiator 52 to the electrical control box 20, so that the radiator 50 can be stably connected to the electrical control box 20. This facilitates the installation of the electrical control box 20 and helps to improve the assembly efficiency of the outdoor unit 100 of the air conditioner.

[0089] Furthermore, the first and second connectors are reliably matched, ensuring that the lower heat sink 52 and the electrical control box 20 are mated without friction or abnormal noise, resulting in low noise.

[0090] Combination Figure 1 , Figure 5 , Figure 6 , Figure 7 and Figure 8 As shown, the electrical control box 20 has an air inlet 26 on the rear side and an air outlet 27 on the front side, which is connected to the air inlet 26. The radiator 50 is adjacent to the air outlet 27 and is arranged opposite to the air outlet 27 in the front-rear direction.

[0091] Specifically, a cooling fan 120 is installed inside the casing 140 of the outdoor unit 100 of the air conditioner. The rotation of the cooling fan 120 can drive airflow, which can drive the air outside the control box 20 to flow into the control box 20 through the air inlet 26. The air inside the control box 20 can flow out of the control box 20 through the air outlet 27. The air inlet 26 and the air outlet 27 are connected, so that the airflow can pass through the inside of the control box 20 from the air inlet 26 and then flow to the air outlet 27. In this way, the heat inside the control box 20 can be removed by air cooling, so that the control box 20 can dissipate heat.

[0092] Furthermore, the heat sink 50 is positioned inside the control box 20 near the air outlet 27. This allows the airflow from the air inlet 26 to the air outlet 27 to pass over the heat sink 50, carrying away the heat from the upper part of the heat sink 50. This reduces the heat dissipation burden on the heat sink 50 and accelerates the release of heat from the heat sink 50. This arrangement improves the heat dissipation efficiency of the control chip 21 and allows the control chip 21 to cool down quickly.

[0093] Furthermore, the radiator 50 and the air outlet 27 are arranged opposite each other in the front-to-back direction. This allows the heat from the radiator 50 to flow directly to the air outlet 27 with the airflow, preventing the heat from the radiator 50 from dissipating to other parts of the electrical control box 20. This not only allows the radiator 50 to dissipate heat quickly, but also prevents heat from dissipating in the electrical control box 20, thus ensuring the normal operation of other electrical components in the electrical control box 20.

[0094] In the embodiments of this utility model, combined with Figure 1 , Figure 11 and Figure 12As shown, the outdoor unit 100 of the air conditioner also includes a partition 130, which is connected to the outer casing 140 of the outdoor unit 100 and connected to the electrical control box 20, thus providing support for the electrical control box 20.

[0095] Furthermore, a notch 1301 is provided at the top of the partition 130, and the edge of the partition 130 corresponding to the notch 1301 is in sealed contact with the periphery of the electrical control box 20. This not only prevents rainwater from wetting the electrical control box 20, but also blocks the water in the air duct cavity 150 of the outdoor unit 100 of the air conditioner to the outside of the compressor cavity 160, preventing the compressor cavity 160 from getting wet.

[0096] In the embodiments of this utility model, combined with Figure 1 , Figure 2 , Figure 10 and Figure 11 As shown, the electrical control box 20 also includes an electrical control box body 28 and an electrical control box cover 29. The control board 22 is disposed between the electrical control box body 28 and the electrical control box cover 29. The electrical control box body 28 and the electrical control box cover 29 provide heat dissipation, rain protection, and insect protection for the control board 22.

[0097] Furthermore, after assembly, the gap between the control board 22 and the electrical control box 28 and the electrical control box cover 29 is very small, which can achieve an insect-proof effect on the back of the control board 22.

[0098] Furthermore, multiple screws are installed on the control board 22. To meet electrical safety requirements, an insulating pad 170 can be added between the control board 22 and the electrical control box 28.

[0099] In the embodiments of this utility model, combined with Figures 5-10 As shown, multiple wire clamps 180 are provided on the electrical control box body 28 and the electrical control box cover 29, and multiple wire grooves 190 are provided on the electrical control box 20, which can fix the wires in the electrical control box 20.

[0100] In the description of this specification, references to terms such as "specific embodiment" and "specific example" refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example that is included in at least one embodiment or example of the present invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example.

[0101] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. An outdoor unit for an air conditioner, characterized in that, include: The compressor (10) has a compressor (10) inlet and a compressor (10) outlet; An outdoor heat exchanger is used for heat exchange with outdoor air, and the inlet of the outdoor heat exchanger is connected to the outlet of the compressor (10); An electrical control box (20) is provided with a control chip (21); The refrigerant cooling pipe (30) has its inlet connected to the outlet of the outdoor heat exchanger and its outlet connected to the inlet of the compressor (10). The refrigerant cooling pipe (30) extends at least partially into the electrical control box (20) and exchanges heat with the control chip (21). Its features are, The electrical control box (20) is also provided with a control board (22), and the control chip (21) is located on the left side of the control board (22); The refrigerant cooling pipe (30) includes: The first cooling pipe (31) is disposed on the rear side of the control panel (22) and extends in the left-right direction; The second cooling pipe (32) is located on the left side of the control board (22) and extends in the front-to-back direction. The rear end of the second cooling pipe (32) is connected to the left end of the first cooling pipe (31). The second cooling pipe (32) exchanges heat with the control chip (21). in, The electrical control box (20) is also provided with a rear limiting member (23) and a front limiting member (24). The rear limiting member (23) is located near the rear end of the second cooling pipe (32), and the front limiting member (24) is located near the front end of the second cooling pipe (32). Both the rear limiting member (23) and the front limiting member (24) are located on one side of the second cooling pipe (32) in the left-right direction and are provided with limiting grooves (25). The limiting grooves (25) cooperate with the second cooling pipe (32) to limit the upward movement of the second cooling pipe (32).

2. The outdoor unit of the air conditioner according to claim 1, characterized in that, The rear limiting member (23) extends downward and is located above the second cooling pipe (32). The lower end of the rear limiting member (23) is provided with the limiting groove (25). The limiting groove (25) of the rear limiting member (23) is arc-shaped and is adapted to limit at least a portion of the sidewall of the second cooling pipe (32) in the circumferential direction; and / or The front limiting member (24) extends from bottom to top and is at least partially higher than the second cooling pipe (32). The upper end of the front limiting member (24) is provided with the limiting groove (25). The limiting groove (25) of the front limiting member (24) is arc-shaped and is adapted to limit at least part of the side wall of the second cooling pipe (32) in the circumferential direction.

3. The outdoor unit of the air conditioner according to claim 2, characterized in that, The first cooling pipe (31) includes: The first inlet refrigerant pipe (311) and the first outlet refrigerant pipe (312) are both located on the rear side of the control panel (22) and extend in the left and right direction. The first inlet refrigerant pipe (311) and the first outlet refrigerant pipe (312) are spaced apart in the front and back direction. The second cooling pipe (32) includes: The second refrigerant inlet pipe (321) and the second refrigerant outlet pipe (322) are both located on the left side of the control panel (22) and extend in the front-to-back direction. The second refrigerant inlet pipe (321) and the second refrigerant outlet pipe (322) are spaced apart in the left-to-right direction. The left end of the first refrigerant inlet pipe (311) is connected to the rear end of the second refrigerant inlet pipe (321). The left end of the first refrigerant outlet pipe (312) is connected to the rear end of the second refrigerant outlet pipe (322). The front end of the second refrigerant inlet pipe (321) is connected to the front end of the second refrigerant outlet pipe (322). The inlet of the refrigerant cooling pipe (30) is located at the right end of the first refrigerant inlet pipe (311), and the outlet of the refrigerant cooling pipe (30) is located at the right end of the first refrigerant outlet pipe (312).

4. The outdoor unit of the air conditioner according to claim 3, characterized in that, The rear limiting member (23) includes: The first rear limiting member (231) is located on the side of the second refrigerant inlet pipe (321) that is away from the second refrigerant outlet pipe (322) in the left and right direction; The second rear limiting member (232) and the first rear limiting member (231) are arranged opposite each other in the left-right direction and are located on the side of the second refrigerant outlet pipe (322) away from the second refrigerant inlet pipe (321) in the left-right direction. The front limiting member (24) includes: The first front limiting member (241) is located on the side of the second refrigerant inlet pipe (321) that is away from the second refrigerant outlet pipe (322) in the left and right direction; The second front limiting member (242) and the first front limiting member (241) are arranged opposite each other in the left and right direction and are located on the side of the second refrigerant outlet pipe (322) away from the second refrigerant inlet pipe (321) in the left and right direction.

5. The outdoor unit of the air conditioner according to claim 1, characterized in that, A vibration damping component (40) is also provided between the rear side wall of the electrical control box (20) and the first cooling pipe (31).

6. The outdoor unit of the air conditioner according to claim 1, characterized in that, The electrical control box (20) is provided with a heat sink (50), the upper side of the heat sink (50) is in contact with the control chip (21) for heat exchange, the heat sink (50) is provided with a heat dissipation groove (51), and the second cooling pipe (32) extends at least partially into the heat sink (50) and is in contact with the inner wall of the heat dissipation groove (51).

7. The outdoor unit of the air conditioner according to claim 6, characterized in that, It also includes a chip holder (60) that is supported between the control chip (21) and the control board (22) so that the control chip (21) is in contact with the upper side of the heat sink (50).

8. The outdoor unit of the air conditioner according to claim 6, characterized in that, The radiator (50) includes: The lower radiator (52) has a lower clearance groove (521) on it. The upper heat sink (53) is disposed on the upper side of the lower heat sink (52) and has an upper clearance groove (531); the upper clearance groove (531) and the lower clearance groove (521) are disposed opposite to each other and form the heat sink (51); the control chip (21) is disposed above the upper heat sink (53) and contacts the upper heat sink (53) for heat exchange.

9. The outdoor unit of the air conditioner according to claim 8, characterized in that, The lower heat sink (52) and the electrical control box (20) are connected and fixed by fasteners. The lower heat sink (52) is provided with a first connector. The control board (22) is located on the upper side of the lower heat sink (52) and is provided with a second connector. The first connector and the second connector are plugged in and engaged.

10. The outdoor unit of the air conditioner according to claim 6, characterized in that, An air inlet (26) is provided on the rear side of the electrical control box (20), and an air outlet (27) is provided on the front side of the electrical control box (20) and is connected to the air inlet (26). The radiator (50) is adjacent to the air outlet (27) and is arranged opposite to the air outlet (27) in the front-rear direction.

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