Outdoor unit

Abstract

The utility model discloses an outdoor unit which comprises a compressor, an outdoor heat exchanger and an electric control component, the electric control component comprises an electric control board, the electric control board is electrically connected with the compressor, and at least one receding hole is formed in the electric control board; the power module is arranged on the electric control board and is electrically connected with the electric control board; the positioning bracket is used for pre-positioning the power module on the electric control board; the positioning support comprises a main body part and at least one positioning part, the positioning part is arranged on the side, facing the electric control board, of the main body part, and the positioning part extends into the receding hole to be in positioning fit with the electric control board; the positioning part comprises at least two elastic buckles, the two elastic buckles are arranged on the two opposite sides of the positioning part in the radial direction, and the distance between the radial outer sides of the two elastic buckles is not smaller than the diameter of the avoiding hole in the radial direction of the avoiding hole. According to the outdoor unit, the positioning support can be prevented from shaking relative to the electric control board, the positioning connection between the positioning support and the electric control board is more stable and reliable, and the welding accuracy of the power module can be improved.

Description

Technical Field

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

[0002] Outdoor units in related technologies typically include a compressor, an outdoor heat exchanger, and electrical control components. The electrical control components are electrically connected to the compressor to control its operation, thereby enabling the outdoor unit to operate normally.

[0003] Furthermore, the electronic control components typically include an electronic control board, a power module, and a positioning bracket. The positioning bracket is connected to the electronic control board to pre-position the power module on the electronic control board, facilitating the welding connection between the power module and the electronic control board.

[0004] However, due to the unreasonable design of the matching structure between the positioning bracket and the control board in the relevant technology, the positioning bracket will shake after being connected and positioned relative to the control board, thus making it impossible to accurately use the positioning bracket to pre-position the power module, affecting the welding accuracy of the power module. Utility Model Content

[0005] 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 that prevents the positioning bracket from shaking relative to the control board, making the positioning connection between the positioning bracket and the control board more stable and reliable, thereby improving the accuracy of power module soldering.

[0006] To achieve the above objectives, an outdoor unit is provided according to an embodiment of the present invention, comprising: a compressor; an outdoor heat exchanger connected to the compressor; and an electrical control component, comprising: an electrical control board electrically connected to the compressor, and having at least one clearance hole; a power module disposed on and electrically connected to the electrical control board; and a positioning bracket disposed on the electrical control board for pre-positioning the power module on the electrical control board; the positioning bracket comprising: a main body; and at least one positioning part disposed on the side of the main body facing the electrical control board, the positioning part extending into the clearance hole and positioningly engaging with the electrical control board; wherein the positioning part includes at least two elastic buckles disposed on opposite radial sides of the positioning part, and the distance between the outer radial sides of the two elastic buckles along the radial direction of the clearance hole is not less than the diameter of the clearance hole.

[0007] The above technical solution has the following advantages or beneficial effects: the outdoor unit according to the embodiment of the present utility model can avoid the positioning bracket from shaking relative to the control board, and the positioning connection between the positioning bracket and the control board is more stable and reliable, thereby improving the accuracy of welding the power module.

[0008] According to some embodiments of this utility model, the elastic buckle includes: an elastic arm, one end of which is connected to the main body and extends in a direction perpendicular to the main body; and a stop portion, which is connected to the other end of the elastic arm and stops on the side of the electronic control board facing away from the main body; wherein, along the radial direction of the clearance hole, the distance between the radially outer sides of the elastic arms of the two elastic buckles is not less than the diameter of the clearance hole.

[0009] The above technical solution has the following advantages or beneficial effects: the stop part can stop on the side of the electronic control board facing away from the main body, thereby avoiding the separation of the positioning bracket from the electronic control board, and making the connection between the positioning bracket and the electronic control board more reliable.

[0010] According to some embodiments of this utility model, the side of the stop portion away from the main body portion is provided with a guide surface, which is radially outward along the positioning portion, and the guide surface is inclined towards the main body portion.

[0011] The above technical solution has the following advantages or beneficial effects: when the positioning part is inserted into the clearance hole, the guide surface can first contact the side wall of the clearance hole, so that the guide surface can be used to guide the assembly of the positioning part and the clearance hole, making the assembly more convenient.

[0012] According to some embodiments of this utility model, the main body is provided with a weakening hole, which is adjacent to the elastic buckle.

[0013] The above technical solution has the following advantages or beneficial effects: the weakening hole can be used to reduce the structural strength of the main body near the elastic buckle, the elastic buckle is more likely to undergo elastic deformation, and the disassembly and assembly steps of the positioning part and the electronic control board are further simplified.

[0014] According to some embodiments of this utility model, the positioning part further includes: a positioning ring edge, the positioning ring edge protruding from the side of the main body facing the electronic control board and spaced apart from the elastic buckle, the positioning ring edge extending into the clearance hole and extending circumferentially along the clearance hole, and the outer peripheral surface of the positioning ring edge abutting against the inner wall of the clearance hole.

[0015] The above technical solution has the following advantages or beneficial effects: the shape of the positioning ring edge is adapted to the clearance hole, which further improves the stability of the fit between the positioning part and the clearance hole, so as to make the positioning fit between the positioning bracket and the electronic control board more stable and reliable.

[0016] According to some embodiments of this utility model, the positioning part further includes: a plurality of reinforcing ribs, the plurality of reinforcing ribs being arranged at circumferential intervals along the edge of the positioning ring, the reinforcing ribs being respectively connected to the radial outer side of the edge of the positioning ring and the main body, and the edge of the positioning ring extending beyond the reinforcing ribs in a direction away from the main body.

[0017] The above technical solution has the following advantages or beneficial effects: by setting multiple reinforcing ribs, the connection strength between the positioning ring edge and the main body can be improved, the positioning ring edge is not easy to deform, which is conducive to improving the stability of the positioning bracket and the electronic control board positioning cooperation.

[0018] According to some embodiments of this utility model, the positioning bracket includes multiple sub-brackets, which are arranged at intervals along the length and / or width direction of the electronic control board, and each sub-bracket is provided with multiple positioning parts, which are respectively fitted into multiple clearance holes.

[0019] The above technical solution has the following advantages or beneficial effects: by constructing the positioning bracket as multiple sub-brackets, the position of two adjacent sub-brackets can be adjusted to adapt to different electronic control boards, which helps to improve the versatility of the positioning bracket.

[0020] According to some embodiments of this utility model, there are multiple clearance holes and multiple positioning parts, with each positioning part extending into a different clearance hole; wherein the number of positioning parts is no more than the number of clearance holes.

[0021] The above technical solution has the following advantages or beneficial effects: by setting multiple positioning parts, the stability of the positioning connection between the positioning bracket and the electronic control board can be improved, the positioning bracket is less likely to rotate relative to the electronic control board, and the connection is more reliable.

[0022] According to some embodiments of this utility model, a plurality of clearance holes are arranged at intervals along the length direction of the electronic control board, and the two outermost clearance holes along the length direction of the electronic control board are respectively the first clearance hole and the second clearance hole; and a plurality of positioning parts include at least a first positioning part and a second positioning part, the first positioning part being fitted into the first clearance hole, and the second positioning part being fitted into the second clearance hole.

[0023] The above technical solution has the following advantages or beneficial effects: the distance between the first positioning part and the second positioning part can be large, which can increase the lever arm between the first positioning part and the second positioning part, which is conducive to improving the anti-rotation effect between the positioning bracket and the electronic control board, and more effectively avoids the positioning bracket from rotating relative to the electronic control board, making the positioning cooperation between the positioning bracket and the electronic control board more stable.

[0024] According to some embodiments of this utility model, the electronic control component further includes: a heat sink, which is disposed on the side of the positioning bracket facing away from the electronic control board, and the heat sink abuts against the power module to dissipate heat from the power module. The heat sink is connected to the positioning bracket by a fastener, and the fastener passes through the clearance hole.

[0025] The above technical solution has the following advantages or beneficial effects: the heat sink can dissipate heat and cool down the power module, avoiding the power module from overheating, and the clearance hole can be a hole for avoiding fasteners. That is, the original clearance hole of the control board can be used to position and cooperate with the positioning part, so that there is no need to set additional through holes on the control board, which helps to simplify the internal structure of the control board and facilitates the routing of the internal circuit of the control board.

[0026] 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

[0027] 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:

[0028] Figure 1 This is a schematic diagram of the structure of the electronic control component according to an embodiment of the present utility model;

[0029] Figure 2 This is an exploded view of the electronic control component according to an embodiment of the present utility model;

[0030] Figure 3 This is a cross-sectional view of the electronic control component according to an embodiment of the present utility model;

[0031] Figure 4 yes Figure 3 An enlarged schematic diagram at point X;

[0032] Figure 5 This is a structural schematic diagram of the positioning bracket according to an embodiment of the present utility model;

[0033] Figure 6 This is a structural schematic diagram of the positioning bracket according to another perspective of an embodiment of the present utility model;

[0034] Figure 7 This is a schematic diagram of the structure of an electronic control component according to another embodiment of the present invention;

[0035] Figure 8 This is an exploded view of an electronic control component according to another embodiment of the present invention;

[0036] Figure 9 This is a cross-sectional view of an electronic control component according to another embodiment of the present invention;

[0037] Figure 10 This is a structural schematic diagram of a sub-support according to another embodiment of the present invention.

[0038] Figure label:

[0039] 1. Electrical control components;

[0040] 100. Electrical control board; 110. Clearance hole; 111. First clearance hole; 112. Second clearance hole;

[0041] 200. Power module;

[0042] 300. Positioning bracket; 310. Main body; 311. Connecting hole; 312. Weakening hole; 320. Positioning part; 321. Positioning ring edge; 322. Reinforcing rib; 323. Elastic buckle; 324. Elastic arm; 325. Stop part; 326. Guide surface; 327. First positioning part; 328. Second positioning part; 330. Sub-bracket;

[0043] 400, radiator; 500, fastener. Detailed Implementation

[0044] 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.

[0045] 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.

[0046] In the description of this utility model, "first feature" and "second feature" may include one or more of the features.

[0047] In the description of this utility model, "multiple" means two or more, and "several" means one or more.

[0048] The outdoor unit according to an embodiment of the present invention is described below with reference to the accompanying drawings.

[0049] like Figures 1-10 As shown, the outdoor unit according to an embodiment of the present utility model may include a compressor. The compressor has an inlet and an outlet. Refrigerant can flow into the compressor through the inlet and flow out of the compressor through the outlet.

[0050] The outdoor unit may include an outdoor heat exchanger, which is connected to the compressor.

[0051] The outdoor unit may include an electrical control component 1, which is electrically connected to the compressor. Specifically, the electrical control component 1 may include an electrical control board 100, which is electrically connected to the compressor to control the operation of the compressor.

[0052] The electronic control component 1 may include a power module 200, which is disposed on and electrically connected to the electronic control board 100. For example, the pins of the power module 200 may be inserted into and soldered to the electronic control board 100.

[0053] The electronic control component 1 may include a positioning bracket 300, which is disposed on the electronic control board 100 and is used to pre-position the power modules 200 on the electronic control board 100. Specifically, the positioning bracket 300 can be first positioned and connected to the electronic control board 100, and then multiple power modules 200 are disposed on the side of the positioning bracket 300 facing away from the electronic control board 100. Simultaneously, the pins of the power modules 200 can pass through the positioning bracket 300 and be soldered to the electronic control board 100. This arrangement allows the positioning bracket 300 to maintain a consistent height for the multiple power modules 200, resulting in a more orderly connection between the multiple power modules 200 and the electronic control board 100. Furthermore, it facilitates simultaneous contact between the side of the multiple power modules 200 facing away from the electronic control board 100 and the heat sink 400, thereby improving the cooling effect of the heat sink 400 on the multiple power modules 200.

[0054] The positioning bracket 300 includes a main body 310 and at least one positioning part 320. The positioning part 320 is located on the side of the main body 310 facing the electronic control board 100. The electronic control board 100 has at least one clearance hole 110. The positioning part 320 extends into the clearance hole 110 and is positioned and engaged with the electronic control board 100. In this way, the positioning bracket 300 can be positioned and engaged with the electronic control board 100 by extending the positioning part 320 into the clearance hole 110 of the electronic control board 100, thereby achieving relative positioning between the positioning bracket 300 and the electronic control board 100.

[0055] In addition, the positioning part 320 includes at least two elastic buckles 323, which are disposed on opposite radial sides of the positioning part 320 and along the radial direction of the clearance hole 110, the distance between the radial outer sides of the two elastic buckles 323 is not less than the diameter of the clearance hole 110.

[0056] Specifically, the positioning part 320 may include a plurality of elastic buckles 323, and every two elastic buckles 323 may form a group, and the two elastic buckles 323 in each group may be disposed on opposite radial sides of the positioning part 320.

[0057] Wherein, along the radial direction of the clearance hole 110, the distance between the radial outer sides of the two elastic buckles 323 is not less than the diameter of the clearance hole 110, which means that the distance between the radial outer sides of the two elastic buckles 323 in each group can be equal to or greater than the diameter of the clearance hole 110.

[0058] In this way, when the positioning part 320 extends into the clearance hole 110 of the control board 100, since the distance between the outer sides of the two elastic buckles 323 is not less than the diameter of the clearance hole 110, the two elastic buckles 323 of each group can stop on the radially opposite sides of the clearance hole 110 respectively. The positioning part 320 will not shake relative to the control board 100 along the radial direction of the clearance hole 110. That is, the positioning bracket 300 can be prevented from shaking relative to the control board 100 along the radial direction of the clearance hole 110, which is beneficial to improving the connection stability between the positioning bracket 300 and the control board 100. Thus, the positioning bracket 300 can be better used to pre-position the power module 200, so as to improve the accuracy of the welding position of the power module 200 on the control board 100.

[0059] Thus, the outdoor unit according to this utility model embodiment can avoid the positioning bracket 300 from shaking relative to the control board 100, and the positioning connection between the positioning bracket 300 and the control board 100 is more stable and reliable, thereby improving the accuracy of welding the power module 200.

[0060] In some specific embodiments of this utility model, such as Figures 1-3 , Figures 7-9 As shown, the electronic control component 1 may include a heat sink 400.

[0061] The heat sink 400 is located on the side of the positioning bracket 300 facing away from the control board 100. The heat sink 400 abuts against the power module 200 to dissipate heat from the power module 200. The heat sink 400 is connected to the positioning bracket 300 via a fastener 500, which passes through a clearance hole 110. In this way, the fastener 500 can pass through the clearance hole 110, meaning that the clearance hole 110 can accommodate the fastener 500 during assembly. This allows the positioning bracket 300 and the heat sink 400 to be relatively fixed by the fastener 500, thereby enabling the heat sink 400 to dissipate heat and cool the power module 200.

[0062] For example, fastener 500 can be a bolt, which passes through clearance hole 110 to connect positioning bracket 300 to heat sink 400.

[0063] In other words, the clearance hole 110 is the original hole on the control board 100 used to avoid the fastener 500. That is, in this application, the positioning part 320 can share the clearance hole 110 with the fastener 500, or the positioning part 320 can cooperate with part of the clearance hole 110 and the fastener 500 can pass through another part of the clearance hole 110. Therefore, it is not necessary to set an additional through hole on the control board 100 to cooperate with the positioning part 320. In this way, it is not necessary to change the wiring of the internal circuit of the control board 100, which helps to simplify the structure of the control board 100 and facilitates processing.

[0064] When the positioning part 320 and the fastener 500 share the same clearance hole 110, the positioning part 320 can be connected to the heat sink 400 through the fastener 500. That is, in the clearance hole 110 with the positioning part 320, the fastener 500 can connect the positioning part 320 to the heat sink 400. Of course, in the clearance hole 110 without the positioning part 320, the fastener 500 can connect the main body part 310 to the heat sink 400. In this way, the positioning part 320 will not prevent the fastener 500 from connecting the heat sink 400 to the positioning bracket 300, so as to ensure that the heat sink 400 can be stably connected to the positioning bracket 300.

[0065] In some specific embodiments of this utility model, such as Figure 1 , Figure 2 , Figure 7 and Figure 8 As shown, there are multiple clearance holes 110 and multiple positioning parts 320, with each positioning part 320 extending into a different clearance hole 110. The number of positioning parts 320 is no more than the number of clearance holes 110.

[0066] The statement that the number of positioning parts 320 is no more than the number of clearance holes 110 means that the number of positioning parts 320 can be the same as the number of clearance holes 110, that is, multiple positioning parts 320 and multiple clearance holes 110 are matched one-to-one; or, the number of positioning parts 320 can be less than the number of clearance holes 110, that is, the positioning parts 320 are matched with some of the clearance holes 110.

[0067] By setting multiple positioning parts 320, the stability of the positioning connection between the positioning bracket 300 and the electronic control board 100 can be improved. The positioning bracket 300 is less likely to rotate relative to the electronic control board 100, making the connection more reliable.

[0068] In some specific embodiments of this utility model, such as Figure 1 and Figure 2 As shown, a plurality of clearance holes 110 are arranged at intervals along the length direction of the electronic control board 100, and the two outermost clearance holes 110 along the length direction of the electronic control board 100 are respectively the first clearance hole 111 and the second clearance hole 112. Furthermore, a plurality of positioning parts 320 include at least a first positioning part 327 and a second positioning part 328. The first positioning part 327 is fitted into the first clearance hole 111, and the second positioning part 328 is fitted into the second clearance hole 112.

[0069] In other words, the first clearance hole 111 and the second clearance hole 112 are located on the outermost side of the plurality of clearance holes 110, and the first positioning part 327 and the second positioning part 328 are respectively fitted into the first clearance hole 111 and the second clearance hole 112. With this arrangement, the distance between the first positioning part 327 and the second positioning part 328 can be larger, thereby increasing the lever arm between the first positioning part 327 and the second positioning part 328, which is beneficial to improving the anti-rotation effect between the positioning bracket 300 and the electronic control board 100, and more effectively preventing the positioning bracket 300 from rotating relative to the electronic control board 100. The positioning fit between the positioning bracket 300 and the electronic control board 100 is more stable.

[0070] In some specific embodiments of this utility model, such as Figure 5 and Figure 6 As shown, the positioning part 320 may include a positioning ring edge 321, which protrudes from the side of the main body 310 facing the electronic control board 100. The positioning ring edge 321 extends into the clearance hole 110 and extends circumferentially along the clearance hole 110. The outer peripheral surface of the positioning ring edge 321 abuts against the inner wall of the clearance hole 110.

[0071] In other words, the positioning ring edge 321 can extend into an arc shape along the circumference of the clearance hole 110, so that the positioning ring edge 321 can be adapted to the shape of the clearance hole 110, further improving the stability of the fit between the positioning part 320 and the clearance hole 110, so that the positioning fit between the positioning bracket 300 and the electronic control board 100 is more stable and reliable.

[0072] The main body 310 has a connecting hole 311 through which the fastener 500 passes, and a positioning ring edge 321 surrounds the connecting hole 311. In this way, the positioning ring edge 321 can avoid the connecting hole 311, that is, the positioning part 320 will not block the connecting hole 311, so that the fastener 500 can pass through the connecting hole 311 to connect the positioning bracket 300 and the heat sink 400.

[0073] The connecting hole 311 can be constructed as a threaded hole, and the fastener 500 can be a bolt. The fastener 500 passes through the connecting hole 311 and is threadedly engaged with the connecting hole 311.

[0074] In addition, a gap can be left between the outer peripheral surface of the positioning ring edge 321 and the inner wall of the clearance hole 110, so that the positioning ring edge 321 can be inserted into the clearance hole 110, that is, the positioning assembly steps of the positioning part 320 and the clearance hole 110 can be simplified; or, the outer peripheral surface of the positioning ring edge 321 and the inner wall of the clearance hole 110 can be interference fit, which can improve the connection stability between the positioning ring edge 321 and the clearance hole 110, and the positioning ring edge 321 is not easy to wobble relative to the electronic control board 100, thereby preventing the positioning bracket 300 from wobble relative to the electronic control board 100, and the connection between the positioning bracket 300 and the electronic control board 100 is more stable and reliable.

[0075] In some specific embodiments, the diameter of the clearance hole 110 is A, and A≥10mm.

[0076] In other words, the diameter of the clearance hole 110 cannot be too small. If the diameter of the clearance hole 110 is too small, the fastener 500 cannot pass through the clearance hole 110, and thus the fastener 500 cannot be cleared. Therefore, the diameter A of the clearance hole 110 cannot be less than 10mm.

[0077] Preferably, the diameter of the clearance hole 110 can be 10.2 mm, so that the clearance hole 110 can effectively avoid the fastener 500 and facilitate the positioning part 320 to extend into the clearance hole 110.

[0078] In some specific embodiments, the diameter of the clearance hole 110 is A, and A≤11mm.

[0079] In other words, the diameter of the clearance hole 110 cannot be too large. If the diameter of the clearance hole 110 is too large, it will occupy too much space on the electronic control board 100 and will not be convenient for the wiring layout of the internal circuit of the electronic control board 100. Therefore, the diameter of the clearance hole 110 cannot be greater than 11mm.

[0080] Preferably, the diameter of the clearance hole 110 can be 10.8mm, so that the clearance hole 110 will not occupy too much space on the electronic control board 100, so as to facilitate the wiring layout of the internal circuit of the electronic control board 100.

[0081] Specifically, the diameter A of the clearance hole 110 can be 10mm to 11mm, for example, the diameter A of the clearance hole 110 can be 10mm, 10.2mm, 10.4mm, 10.6mm, 10.8mm or 11mm. This ensures that the clearance hole 110 can effectively avoid the fastener 500, while the clearance hole 110 will not excessively occupy the space on the electronic control board 100.

[0082] In some specific embodiments, the outer diameter of the positioning part 320 is B, where B ≤ 95%A.

[0083] In other words, the outer diameter B of the positioning part 320 cannot be too large. If the outer diameter B of the positioning part 320 is too large, it will cause difficulties in assembling the positioning part 320 with the clearance hole 110, and may even cause the positioning ring part 320 to be unable to extend into the clearance hole 110. Therefore, the outer diameter B of the positioning part 320 cannot be greater than 95%A.

[0084] Preferably, the outer diameter B of the positioning part 320 is ≤ 94%A, which makes it easy to insert the positioning part 320 into the clearance hole 110 to achieve relative positioning between the positioning bracket 300 and the electronic control board 100.

[0085] More preferably, the outer diameter B of the positioning part 320 is less than or equal to 93% of A. This allows the outer diameter of the positioning part 320 to be smaller, making it easier for the positioning part 320 to extend into the clearance hole 110 and facilitating the assembly and connection between the positioning bracket 300 and the electronic control board 100.

[0086] In some specific embodiments, the outer diameter of the positioning part 320 is B, and 90%A≤B.

[0087] In other words, the outer diameter B of the positioning part 320 cannot be too small. If the outer diameter B of the positioning part 320 is too small, the gap between the outer peripheral surface of the positioning part 320 and the inner wall of the clearance hole 110 will be too large, and the positioning bracket 300 will easily wobble relative to the electronic control board, thereby reducing the stability of the positioning fit between the positioning bracket 300 and the electronic control board 100. Therefore, the outer diameter B of the positioning part 320 cannot be less than 90%A.

[0088] Preferably, 91%A≤B, so that the gap between the positioning part 320 and the clearance hole 110 can be smaller, thereby preventing the positioning part 320 from shaking in the clearance hole 110, so that the connection between the positioning bracket 300 and the electronic control board 100 is more stable.

[0089] Further preferably, 92%A≤B, so that the gap between the positioning part 320 and the clearance hole 110 can be smaller, further preventing the positioning part 320 from shaking in the clearance hole 110, and making the connection between the positioning bracket 300 and the electronic control board 100 more stable.

[0090] Specifically, the outer diameter B of the positioning part 320 is 90%A≤B≤95%A. For example, the outer diameter B of the positioning part 320 can be 90%A, 91%A, 92%A, 93%A, 94%A, or 95%A. This setting ensures that the positioning part 320 can easily extend into the clearance hole 110 to facilitate the assembly and connection between the positioning bracket 300 and the electronic control board 100. It also prevents the positioning part 320 from shaking within the clearance hole 110, making the connection between the positioning bracket 300 and the electronic control board 100 more stable and reliable.

[0091] In some specific embodiments, the inner diameter of the positioning part 320 is C, where C ≤ 85%A.

[0092] In other words, the inner diameter C of the positioning part 320 cannot be too large. If the inner diameter C of the positioning part 320 is too large, the wall thickness of the positioning part 320 will be too thin, which will reduce the structural strength of the positioning part 320 and affect the stability of the connection between the positioning bracket 300 and the electronic control board 100. Therefore, the inner diameter C of the positioning part 320 cannot be greater than 85%A.

[0093] Preferably, the inner diameter C of the positioning part 320 is less than or equal to 84%A. This avoids the inner diameter C of the positioning part 320 being too large, so that the wall thickness of the positioning part 320 can be thicker, thereby ensuring that the structural strength of the positioning part 320 is high and the positioning fit between the positioning bracket 300 and the electronic control board 100 is more stable.

[0094] Further preferably, the inner diameter C of the positioning part 320 is ≤83%A, so that the wall thickness of the positioning part 320 can be thicker, the structural strength of the positioning part 320 can be higher, and the stability of the positioning cooperation between the positioning bracket 300 and the electronic control board 100 is better.

[0095] In some specific embodiments, the inner diameter C of the positioning part 320 is 80%A≤C.

[0096] In other words, the inner diameter C of the positioning part 320 cannot be too small. If the inner diameter C of the positioning part 320 is too small, the fastener 500 may not be able to extend into the positioning part 320 and pass through the connecting hole 311. Furthermore, when the inner diameter C of the positioning part 320 is too small, the wall thickness of the positioning part 320 will be thicker, that is, the thickness of the elastic buckle 323 will increase, and the elastic buckle 323 will not be easily deformed, thus making it difficult to assemble the positioning part 320 with the electronic control board 100. Therefore, the inner diameter C of the positioning part 320 cannot be less than 80%A.

[0097] Preferably, 81%A≤C, which can prevent the inner diameter C of the positioning part 320 from being too small, so that the fastener 500 can be easily inserted into the clearance hole 110 and fitted into the connecting hole 311, and the elastic buckle 323 can be easily deformed so that the positioning part 320 can be inserted into the clearance hole 110.

[0098] Further preferably, 82%A≤C, so that the inner diameter C of the positioning part 320 can be larger, the fastener 500 can be more easily inserted into the clearance hole 110 and fitted into the connecting hole 311, and the elastic buckle 323 is easy to deform so that the positioning part 320 can be inserted into the clearance hole 110.

[0099] Specifically, the inner diameter C of the positioning part 320 is 80%A≤C≤85%A. For example, the inner diameter C of the positioning part 320 can be 80%A, 81%A, 82%A, 83%A, 84%A, or 85%A. This design ensures high structural strength of the positioning part 320, allowing for stable positioning and engagement between the positioning bracket 300 and the control board 100. It also allows for deformation of the elastic buckle 323, facilitating the positioning part 320's insertion into the clearance hole 110. Furthermore, the fastener 500 can smoothly extend into the positioning part 320 and pass through the connecting hole 311 to connect the positioning bracket 300 to the heat sink 400.

[0100] In some specific embodiments of this utility model, such as Figure 5 and Figure 10 As shown, the positioning part 320 may also include a plurality of reinforcing ribs 322, which are arranged at intervals along the circumference of the positioning ring edge 321. The reinforcing ribs 322 are respectively connected to the radial outer side of the positioning ring edge 321 and the main body part 310, and the positioning ring edge 321 extends beyond the reinforcing ribs 322 in a direction away from the main body part 310.

[0101] By setting multiple reinforcing ribs 322, the connection strength between the positioning ring edge 321 and the main body 310 can be improved. The positioning ring edge 321 is not easily deformed, which is conducive to improving the stability of the positioning bracket 300 and the electronic control board 100 positioning cooperation.

[0102] In addition, the positioning ring edge 321 can extend beyond the reinforcing rib 322 in a direction away from the main body 310, so that the height of the positioning ring edge 321 is higher and the reinforcing rib 322 will not obstruct the positioning ring edge 321 from extending into the clearance hole 110, so that the positioning ring edge 321 can extend into the clearance hole 110.

[0103] In some specific embodiments of this utility model, such as Figure 4 and Figure 5 As shown, the positioning part 320 may also include an elastic buckle 323, which is provided on the side of the main body 310 facing the electronic control board 100, and the elastic buckle 323 is engaged with the side of the electronic control board 100 facing away from the positioning bracket 300.

[0104] The positioning bracket 300 is attached to the side of the electronic control board 100 opposite to the positioning bracket 300 by the elastic buckle 323, so that the positioning bracket 300 is not easy to separate from the electronic control board 100, which further improves the connection stability between the positioning bracket 300 and the electronic control board 100.

[0105] The elastic buckle 323 and the positioning ring edge 321 are spaced apart, so that the elastic buckle 323 is more likely to undergo elastic deformation, so that the elastic buckle 323 can pass through the clearance hole 110, further simplifying the disassembly and assembly of the positioning part 320 and the electronic control board 100.

[0106] Furthermore, the main body 310 has a weakening hole 312 on one side of the elastic buckle 323.

[0107] In addition, the elastic buckle 323 and the positioning ring edge 321 are spaced apart circumferentially, and the main body 310 is provided with a weakening hole 312 on the side facing the elastic buckle 323 in the radial direction. In this way, the weakening hole 312 can be used to weaken the structural strength of the main body 310 near the elastic buckle 323, making the elastic buckle 323 more prone to elastic deformation, which further simplifies the disassembly and assembly steps of the positioning part 320 and the electronic control board 100.

[0108] In some specific embodiments of this utility model, such as Figure 4 As shown, the elastic buckle 323 may include an elastic arm 324, one end of which is connected to the main body 310, and the elastic arm 324 extends axially through the clearance hole 110, so that the elastic buckle 323 can extend into the clearance hole 110 and extend to the side of the electronic control board 100 opposite to the positioning bracket 300.

[0109] In addition, the elastic buckle 323 may include a stop portion 325, which is connected to the other end of the elastic arm 324. When the elastic buckle 323 extends into the clearance hole 110, the stop portion 325 can stop on the side of the electronic control board 100 facing away from the main body 310, thereby preventing the positioning bracket 300 from separating from the electronic control board 100 and making the connection between the positioning bracket 300 and the electronic control board 100 more reliable.

[0110] Furthermore, along the thickness direction of the electronic control board 100, the stop portion 325 can be tightly attached to the side of the electronic control board 100 facing away from the main body portion 310. This allows the elastic buckle 323 to fit more tightly with the electronic control board 100, thereby improving the connection stability between the positioning bracket 300 and the electronic control board 100. The positioning bracket 300 is less likely to wobble relative to the electronic control board 100 along the thickness direction. Alternatively, along the thickness direction of the electronic control board 100, a gap can be left between the stop portion 325 and the side of the electronic control board 100 facing away from the main body portion 310. This gap can be used to absorb and compensate for assembly errors or processing errors between the positioning bracket 300 and the electronic control board 100, which helps to simplify the assembly process and improve assembly efficiency.

[0111] In the radial direction of the clearance hole 110, the distance between the radially outer sides of the elastic arms 324 of the two elastic buckles 323 is not less than the diameter of the clearance hole 110. It is understood that when the positioning bracket 300 is connected to the control board 100, the positioning part 320 extends into the clearance hole 110. At this time, the stop part 325 can pass through the clearance hole 110, and the elastic arms 324 will cooperate with the inner wall of the clearance hole 110. By limiting the distance between the outer sides of the elastic arms 324 of the two elastic buckles 323 to not less than the diameter of the clearance hole 110, it can be ensured that after the positioning part 320 extends into the clearance hole 110, the elastic arms 324 of the two elastic buckles 323 can stably abut against the radially opposite sides of the clearance hole 110, more effectively preventing the elastic buckles 323 from shaking within the clearance hole 110, thus making the connection between the positioning bracket 300 and the control board 100 more stable.

[0112] In some specific embodiments of this utility model, such as Figure 4 As shown, a guide surface 326 is provided on the side of the stop portion 325 away from the main body portion 310, and it extends radially outward along the positioning portion 320, with the guide surface 326 inclined towards the main body portion 310. Thus, when the positioning portion 320 is inserted into the clearance hole 110, the guide surface 326 can first contact the side wall of the clearance hole 110, thereby guiding the assembly of the positioning portion 320 and the clearance hole 110, making assembly more convenient.

[0113] In some specific embodiments, after the positioning part 320 is assembled with the electronic control board 100, the stop part 325 extends outward beyond the elastic arm 324 by a dimension D along the radial direction of the clearance hole 110, and the wall thickness of the positioning part 320 is L, where L = outer diameter B of the positioning part 320 - inner diameter C of the positioning part 320, and D ≤ L / 2.

[0114] In other words, the dimension D of the stop portion 325 extending outward beyond the elastic arm 324 along the radial direction of the clearance hole 110 cannot be too large. If the dimension D of the stop portion 325 extending outward beyond the elastic arm 324 is too large, it will cause difficulties in assembling the elastic buckle 323 with the clearance hole 110. Therefore, the dimension D of the stop portion 325 extending outward beyond the elastic arm 324 along the radial direction of the clearance hole 110 cannot be greater than L / 2.

[0115] Preferably, along the radial direction of the clearance hole 110, the dimension D of the stop portion 325 extending outward beyond the elastic arm 324 should not exceed 45%L. This can prevent the dimension D of the stop portion 325 extending outward beyond the elastic arm 324 from being too large, so that the elastic buckle 323 can extend into the clearance hole 110, which facilitates the assembly of the positioning bracket 300 and the electronic control board 100.

[0116] In some specific embodiments, L / 3 ≤ D. That is, the dimension D of the stop portion 325 extending outward beyond the elastic arm 324 along the radial direction of the clearance hole 110 cannot be too small. If the dimension D of the stop portion 325 extending outward beyond the elastic arm 324 is too small, it may cause the stop portion 325 to be unable to stably stop on the side of the electronic control board 100 opposite to the main body portion 310. Therefore, the dimension D of the stop portion 325 extending outward beyond the elastic arm 324 along the radial direction of the clearance hole 110 cannot be less than L / 3.

[0117] Preferably, along the radial direction of the clearance hole 110, the dimension D of the stop portion 325 extending outward beyond the elastic arm 324 should not be less than 35%L. In this way, the dimension D of the stop portion 325 extending outward beyond the elastic arm 324 can be large, so that the stop portion 325 can stably stop on the side of the electronic control board 100 facing away from the main body 310, thereby improving the connection stability between the positioning bracket 300 and the electronic control board 100.

[0118] Specifically, along the radial direction of the clearance hole 110, the stop portion 325 extends outward beyond the dimension D of the elastic arm 324, and the wall thickness of the positioning portion 320 is L, where L / 3≤D≤L / 2. This arrangement facilitates the positioning portion 320's insertion into the clearance hole 110, enabling the assembly of the positioning bracket 300 and the electronic control board 100. It also ensures that the stop portion 325 can stably stop on the side of the electronic control board 100 facing away from the main body 310, thus ensuring a stable fit between the positioning bracket 300 and the electronic control board 100.

[0119] In some specific embodiments, along the thickness direction of the electronic control board 100, the gap between the stop portion 325 and the electronic control board 100 is E, where E≤D / 5.

[0120] In other words, the gap E between the stop part 325 and the electronic control board 100 cannot be too large. If the gap E between the stop part 325 and the electronic control board 100 is too large, it will easily cause the positioning bracket 300 to shake relative to the electronic control board 100. Therefore, along the thickness direction of the electronic control board 100, the gap E between the stop part 325 and the electronic control board 100 cannot be greater than D / 5.

[0121] Preferably, the gap E between the stop part 325 and the electronic control board 100 is no greater than 19%D, which can effectively prevent the positioning bracket 300 from shaking relative to the electronic control board 100 and ensure the stability of the connection between the positioning bracket 300 and the electronic control board 100.

[0122] In some specific embodiments, along the thickness direction of the electronic control board 100, the gap between the stop portion 325 and the electronic control board 100 is E, D / 6≤E.

[0123] In other words, the gap E between the stop part 325 and the electronic control board 100 cannot be too small. If the gap E between the stop part 325 and the electronic control board 100 is too small, the gap E may not be able to effectively absorb the assembly error between the elastic buckle 323 and the electronic control board 100. Therefore, the gap E between the stop part 325 and the electronic control board 100 cannot be less than D / 6.

[0124] Preferably, the gap E between the stop part 325 and the electronic control board 100 shall not be less than 17%D. In this way, the gap E can effectively absorb the assembly error between the elastic buckle 323 and the electronic control board 100, and facilitate the assembly of the positioning bracket 300 and the electronic control board 100.

[0125] Specifically, D / 6≤E≤D / 5, which can both prevent the gap E between the stop part 325 and the electronic control board 100 from being too small, so as to absorb assembly errors by using the gap E, and prevent the gap E between the stop part 325 and the electronic control board 100 from being too large, thereby preventing relative shaking between the positioning bracket 300 and the electronic control board 100.

[0126] In some specific embodiments of this utility model, such as Figure 5 and Figure 10 As shown, there are multiple elastic buckles 323 and multiple positioning ring edges 321. The multiple elastic buckles 323 and multiple positioning ring edges 321 are arranged alternately along the circumference of the clearance hole 110.

[0127] In this way, multiple positioning ring edges 321 and multiple elastic buckles 323 can be used to cooperate with the side wall of the clearance hole 110 to position the electronic control board 100 of the positioning bracket 300. The stop portions 325 of the multiple elastic buckles 323 can simultaneously stop on the side of the electronic control board 100 facing away from the main body 310, so that the positioning bracket 300 and the electronic control board 100 are stably connected.

[0128] Moreover, by arranging multiple elastic buckles 323 and multiple positioning ring edges 321 alternately along the circumference of the clearance hole 110, each elastic buckle 323 can be spaced apart from the positioning ring edges 321 on both sides, so that the elastic buckle 323 can deform and thus facilitate the elastic buckle 323 to extend into the clearance hole 110.

[0129] In some specific embodiments of this utility model, such as Figures 8-10 As shown, the positioning bracket 300 may include multiple sub-brackets 330, which are arranged at intervals along the length and / or width of the electronic control board 100. Each sub-bracket 330 is provided with multiple positioning parts 320, which are respectively fitted into multiple clearance holes 110.

[0130] The arrangement of multiple sub-supports 330 along the length and / or width of the control board 100 means that the multiple sub-supports 330 can be arranged at intervals along the length of the control board 100, or the multiple sub-supports 330 can be arranged at intervals along the width of the control board 100, or the multiple sub-supports 330 can be arranged at intervals along both the length and width of the control board 100.

[0131] In addition, each sub-bracket 330 is provided with multiple positioning parts 320, so that the multiple positioning parts 320 of each sub-bracket 330 can respectively cooperate with multiple clearance holes 110, thereby preventing the sub-bracket 330 from rotating relative to the electronic control board 100, so that each sub-bracket 330 can be stably connected to the electronic control board 100.

[0132] By constructing the positioning bracket 300 as multiple sub-brackets 330, the positions of two adjacent sub-brackets 330 can be adjusted to accommodate different electronic control boards 100. For example, when the positions of the multiple clearance holes 110 of the electronic control board 100 are different, the relative positions of two adjacent sub-brackets 330 can be adjusted so that the distance between the positioning parts 320 on the two adjacent sub-brackets 330 is different. This makes it easier for the sub-brackets 330 to adapt to different electronic control boards 100, which helps to improve the versatility of the positioning bracket 300.

[0133] Other components and operations of the outdoor unit according to the embodiments of this utility model are known to those skilled in the art and will not be described in detail here.

[0134] The air conditioner of this invention performs a refrigeration cycle by using a compressor, condenser, expansion valve, and evaporator. The refrigeration cycle includes a series of processes involving compression, condensation, expansion, and evaporation, and supplies refrigerant to the conditioned and heat-exchanged air.

[0135] The compressor compresses refrigerant gas under high temperature and pressure and discharges the compressed refrigerant gas. The discharged refrigerant gas flows into the condenser. The condenser condenses the compressed refrigerant into a liquid phase, and the heat is released to the surrounding environment through the condensation process.

[0136] The expansion valve expands the high-temperature, high-pressure liquid refrigerant condensed in the condenser into a low-pressure liquid refrigerant. The evaporator evaporates the expanded refrigerant in the expansion valve and returns the low-temperature, low-pressure refrigerant gas to the compressor. The evaporator achieves its cooling effect by utilizing the latent heat of refrigerant evaporation to exchange heat with the material being cooled. Throughout the cycle, the air conditioner regulates the temperature and humidity of the indoor space.

[0137] 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.

[0138] 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, comprising: compressor; An outdoor heat exchanger, which is connected to the compressor; The electronic control component includes: An electronic control board, which is electrically connected to the compressor, and the electronic control board is provided with at least one clearance hole; A power module, which is mounted on and electrically connected to the electronic control board; A positioning bracket is disposed on the electronic control board, and the positioning bracket is used to pre-position the power module on the electronic control board; Its features are, The positioning bracket includes: Main body; At least one positioning part is provided on the side of the main body facing the electronic control board, the positioning part extends into the clearance hole and is positioned and engaged with the electronic control board; The positioning part includes at least two elastic buckles, which are disposed on opposite radial sides of the positioning part and along the radial direction of the clearance hole. The distance between the outer radial sides of the two elastic buckles is not less than the diameter of the clearance hole.

2. The outdoor unit according to claim 1, characterized in that, The elastic buckle includes: An elastic arm, one end of which is connected to the main body, and the elastic arm extends in a direction perpendicular to the main body; A stop portion is connected to the other end of the elastic arm, and the stop portion stops on the side of the electronic control board facing away from the main body. Wherein, along the radial direction of the clearance hole, the distance between the radially outer sides of the elastic arms of the two elastic buckles is not less than the diameter of the clearance hole.

3. The outdoor unit according to claim 2, characterized in that, The stop portion has a guide surface on the side away from the main body portion, and extends radially outward along the positioning portion. The guide surface is inclined towards the main body portion.

4. The outdoor unit according to claim 2, characterized in that, The main body is provided with a weakening hole, which is adjacent to the elastic buckle.

5. The outdoor unit according to claim 1, characterized in that, The positioning unit also includes: The positioning ring edge protrudes from the side of the main body facing the electronic control board and is spaced apart from the elastic buckle. The positioning ring edge extends into the clearance hole and extends circumferentially along the clearance hole. The outer peripheral surface of the positioning ring edge abuts against the inner wall of the clearance hole.

6. The outdoor unit according to claim 5, characterized in that, The positioning unit also includes: Multiple reinforcing ribs are arranged at circumferential intervals along the edge of the positioning ring. The reinforcing ribs are respectively connected to the radial outer side of the edge of the positioning ring and the main body, and the edge of the positioning ring extends beyond the reinforcing ribs in a direction away from the main body.

7. The outdoor unit according to claim 1, characterized in that, The positioning bracket includes multiple sub-brackets, which are arranged at intervals along the length and / or width of the electronic control board. Each sub-bracket is provided with multiple positioning parts, which are respectively fitted into multiple clearance holes.

8. The outdoor unit according to claim 1, characterized in that, There are multiple clearance holes and multiple positioning parts, with each positioning part extending into a different clearance hole; The number of the positioning parts is no more than the number of the clearance holes.

9. The outdoor unit according to claim 8, characterized in that, The plurality of clearance holes are arranged at intervals along the length direction of the electronic control board, and the two outermost clearance holes along the length direction of the electronic control board are respectively the first clearance hole and the second clearance hole; and, The plurality of positioning parts include at least a first positioning part and a second positioning part, wherein the first positioning part is fitted into the first clearance hole and the second positioning part is fitted into the second clearance hole.

10. The outdoor unit according to claim 1, characterized in that, The electronic control component also includes: A heat sink is provided on the side of the positioning bracket facing away from the electronic control board, and the heat sink abuts against the power module to dissipate heat from the power module. The heat sink is connected to the positioning bracket by a fastener, and the fastener passes through the clearance hole.

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