Outdoor unit and air conditioner

Abstract

The application discloses an outdoor unit and an air conditioner. The outdoor unit comprises a box body and an electric control box assembly. The box body comprises a front side, at least the front side is arranged as a maintenance side, the electric control box assembly is arranged in the box body, the electric control box assembly comprises a mounting plate, an electric control board and a heat dissipation device, the mounting plate is connected with the box body, the heat dissipation device is mounted on the mounting plate, the electric control board is arranged on a side of the heat dissipation device facing the front side, the electric control board is connected with at least one of the mounting plate and the heat dissipation device, and the heat dissipation device can exchange heat with the electric control board. In the outdoor unit, the front side of the box body is arranged as the maintenance side, the electric control board is arranged towards the front side of the box body, and the heat dissipation device is arranged on a side of the electric control board away from the front side. In this way, the heat dissipation device can reduce the shielding of the electric control board, thereby improving the convenience of maintaining the electric control board.

Description

Technical Field

[0001] This application relates to the field of heating, ventilation and air conditioning systems, and more particularly to an outdoor unit and an air conditioner. Background Technology

[0002] This section provides only background information relevant to this disclosure and is not necessarily prior art.

[0003] An air conditioner includes an outdoor unit, which contains an electrical control box assembly. The electrical control box assembly includes an electrical control board and a heat dissipation device. The heat dissipation device is used to cool the electrical control board, thereby reducing the temperature rise of the electrical control board and thus reducing the failure rate of the electrical control board.

[0004] In related technologies, the heat dissipation device is a refrigerant heat dissipation device, which has pipes for refrigerant circulation. The pipes are blocked on the front side of the electronic control board, making it inconvenient to maintain the electronic control board. Utility Model Content

[0005] The purpose of this application is to at least address the problem of how to improve the ease of maintenance for electronic control boards. This purpose is achieved through the following technical solution:

[0006] A first aspect of this application discloses an outdoor unit for an air conditioner, said outdoor unit comprising:

[0007] A housing, the housing including a front side, at least the front side being configured as a maintenance side;

[0008] An electrical control box assembly is disposed within the housing. The electrical control box assembly includes a mounting plate, an electrical control board, and a heat dissipation device. The mounting plate is connected to the housing, the heat dissipation device is mounted on the mounting plate, and the electrical control board is disposed on the side of the heat dissipation device facing the front. At least one of the mounting plate and the heat dissipation device is connected to the electrical control board, and the heat dissipation device is used to exchange heat with the electrical control board.

[0009] In the outdoor unit of this application, the front side of the enclosure is set as the maintenance side, the electronic control board is set facing the front side of the enclosure, and the heat dissipation device is set on the side of the electronic control board away from the front side. In this way, the obstruction of the electronic control board by the heat dissipation device can be reduced, thereby improving the convenience of maintaining the electronic control board.

[0010] In addition, the outdoor unit according to this application may also have the following additional technical features:

[0011] In some embodiments of this application, the mounting plate is thermally connected to the heat dissipation device.

[0012] In some embodiments of this application, the mounting plate has a recessed structure on the side facing the electronic control board, and the heat dissipation device is housed within the recessed structure.

[0013] In some embodiments of this application, the electrical control box assembly further includes at least one connector, and the mounting plate, the heat dissipation device, and the electrical control board are connected through the at least one connector.

[0014] In some embodiments of this application, the connector is a screw, which includes a connected nut and a stud. The nut abuts against the side of the electronic control board facing the front, and the stud passes through the electronic control board and the heat dissipation device in sequence and is threadedly connected to the mounting plate.

[0015] In some embodiments of this application, the heat dissipation device includes:

[0016] A heat exchange body is attached to the electronic control board and can exchange heat with the electronic control board. The heat exchange body includes non-communicating through channels and through holes. The number of through holes is the same as the number of screws. The through holes allow the studs to pass through.

[0017] A medium pipeline, part of which is installed in the through-channel, is used to supply heat exchange medium for flow and is thermally connected to the heat exchange medium.

[0018] In some embodiments of this application, the heat exchange body includes:

[0019] The first part has a first groove, and the through hole passes through the first part and is not connected to the first groove;

[0020] The second part has a second groove, the through hole passes through the second part and is not connected to the second groove, and the second groove and the first groove together form the through channel.

[0021] In some embodiments of this application, the first part is provided with a first mating structure, and the mounting plate is provided with a second mating structure. The first mating structure and the second mating structure are mated in a separable manner so that the heat dissipation device is pre-fixed on the mounting plate.

[0022] In some embodiments of this application, the first mating structure is a mounting hole, and the second mating structure is a mounting protrusion, wherein the mounting hole is sleeved on the mounting protrusion;

[0023] And / or, the electrical control box assembly further includes a box body, the box body being disposed on the side of the mounting plate facing the front and connected to the mounting plate, at least a portion of the electrical control board being housed in the box body, the box body having a cutout position, the electrical control board being in contact with the heat dissipation device at the cutout position and exchanging heat with the heat dissipation device.

[0024] A second aspect of this application provides an air conditioner, the air conditioner comprising:

[0025] Outdoor unit, wherein the outdoor unit is an outdoor unit as described above;

[0026] The indoor unit is connected to the outdoor unit and forms a refrigerant circulation path.

[0027] In the outdoor unit of the air conditioner of this application, the front side of the casing is set as the maintenance side, the electronic control board is set facing the front side of the casing, and the heat dissipation device is set on the side of the electronic control board away from the front side. In this way, the obstruction of the electronic control board by the heat dissipation device can be reduced, thereby improving the convenience of maintenance of the electronic control board.

[0028] The above description is only an overview of the technical solution of this application. In order to better understand the technical means of this application and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this application more obvious and understandable, the following are specific embodiments of this application. Attached Figure Description

[0029] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of this application. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings:

[0030] Figure 1 A schematic diagram of the structure of an outdoor unit according to some embodiments of this application is shown;

[0031] Figure 2 for Figure 1 A schematic diagram of the electrical control box assembly of the outdoor unit shown in the figure;

[0032] Figure 3 for Figure 2 A second-view structural schematic diagram of the electronic control box assembly shown;

[0033] Figure 4 for Figure 2 An exploded view of the electrical control box assembly shown.

[0034] Figure 5 for Figure 2 A third-view structural schematic diagram of the electronic control box assembly shown;

[0035] Figure 6 for Figure 5 A cross-sectional view of the electrical control box assembly shown at point AA.

[0036] The attached figures are labeled as follows:

[0037] 100. Outdoor unit;

[0038] 10. Box body;

[0039] 11. Middle partition;

[0040] 20. Electrical control box assembly;

[0041] 21. Electrical control board; 22. Mounting plate; 221. Back plate; 2211. Second mating structure; 2212. Recessed structure; 222. First side plate; 223. Second side plate; 23. Heat dissipation device; 231. Heat exchanger body; 2311. First part; 2312. Second part; 2313. First mating structure; 232. Medium pipeline; 24. Box body; 241. Cutout position; 25. Connector;

[0042] a. Front side; b. Back side. Detailed Implementation

[0043] Exemplary embodiments of the present disclosure will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

[0044] It should be understood that the terminology used herein is for the purpose of describing particular exemplary embodiments only and is not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms “a,” “an,” and “described” as used herein may also include the plural forms. The terms “comprising,” “including,” “containing,” and “having” are inclusive and therefore indicate the presence of the stated features, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, steps, operations, elements, components, and / or combinations thereof. The method steps, processes, and operations described herein are not construed as requiring them to be performed in a particular order described or illustrated unless the order of performance is explicitly indicated. It should also be understood that additional or alternative steps may be used.

[0045] Although terms such as first, second, third, etc., may be used in this document to describe multiple elements, components, regions, layers, and / or segments, these elements, components, regions, layers, and / or segments should not be limited by these terms. These terms may be used only to distinguish one element, component, region, layer, or segment from another. Unless the context clearly indicates otherwise, terms such as "first," "second," and other numerical terms used herein do not imply order or sequence. Therefore, the first element, component, region, layer, or segment discussed below may be referred to as the second element, component, region, layer, or segment without departing from the teachings of the exemplary embodiments.

[0046] For ease of description, spatial relative terms may be used in the text to describe the relationship of one element or feature relative to another element or feature, as shown in the figure. These relative terms include, for example, "inside," "outside," "middle," "outer," "below," "below," "above," "over," etc. Such spatial relative terms are intended to include different orientations of the device in use or operation, other than those depicted in the figure. For example, if the device in the figure is flipped, an element described as "below other elements or features" or "below other elements or features" would subsequently be oriented as "above other elements or features" or "above other elements or features." Therefore, the example term "below" can include both upper and lower orientations. The device may be otherwise oriented (rotated 90 degrees or in other directions), and the spatial relative descriptors used in the text will be interpreted accordingly.

[0047] like Figures 1 to 6 As shown, according to an embodiment of this application, an outdoor unit 100 for an air conditioner is proposed, the outdoor unit 100 including a housing 10 and an electrical control box assembly 20.

[0048] Specifically, the housing 10 has an internal storage space for accommodating the functional components of the outdoor unit 100 (including compressors, radiators, and fans, etc.) and providing a mounting platform for the functional components.

[0049] The shape of the box 10 includes, but is not limited to, a cuboid, a cube, or a cylinder. The box 10 shown in the accompanying drawings of this application is a cuboid structure.

[0050] The enclosure 10 has a front side a. In this application, the front side a refers to the side of the enclosure 10 facing outward. For example, when the outdoor unit 100 is installed on the wall by a bracket, the side of the enclosure 10 facing the wall is the rear side b, and the side of the enclosure 10 away from the wall is the front side a.

[0051] Furthermore, after the outdoor unit 100 is installed, there is usually a large space on the front side a of the enclosure 10. The front side a of the enclosure 10 is set as the maintenance side, which can provide sufficient space for the maintenance of the outdoor unit 100, and thus enable the maintenance operation to be carried out smoothly.

[0052] The electrical control box assembly 20 is installed inside the housing 10. Opening the front panel of the housing 10 exposes the electrical control box assembly 20. The electrical control box assembly 20 includes an electrical control board 21, a mounting plate 22, and a heat dissipation device 23. The mounting plate 22 is fixedly connected to the housing 10. Both the heat dissipation device 23 and the electrical control board 21 are mounted on the mounting plate 22. The heat dissipation device 23 is fixedly connected to the mounting plate 22, and the electrical control board 21 is fixedly connected to at least one of the heat dissipation device 23 and the mounting plate 22. The electrical control board 21 is located on the side of the heat dissipation device 23 facing forward (a) and is capable of exchanging heat with the heat dissipation device 23.

[0053] The control board 21 is used to control the operation of the outdoor unit 100. The control board 21 includes multiple electronic control components. These electronic control components generate heat during operation. The heat dissipation device 23 exchanges heat with the heated electronic control components through heat exchange to reduce the temperature rise of the electronic control components, thereby reducing the failure rate of the control board 21.

[0054] In the outdoor unit 100 of this application, the front side a of the enclosure 10 is set as the maintenance side, the electronic control board 21 is set facing the front side a of the enclosure 10, and the heat dissipation device 23 is set on the side of the electronic control board 21 away from the front side a. In this way, the obstruction of the electronic control board 21 by the heat dissipation device 23 can be reduced, thereby improving the convenience of maintenance of the electronic control board 21.

[0055] In some embodiments of this application, in the electronic control box assembly 20, the electronic control board 21 is in contact with the heat dissipation device 23, and the heat of the electronic control board 21 can be transferred to the heat dissipation device 23, thereby enabling the cooling operation of the electronic control board 21.

[0056] Specifically, the heat dissipation device 23 is thermally connected to the mounting plate 22, wherein the thermal connection means that the heat dissipation device 23 can transfer heat to the mounting plate 22.

[0057] When the electronic control board 21 is running, the heat on the electronic control board 21 is transferred to the heat dissipation device 23. The heat dissipation device 23 is thermally connected to the mounting plate 22, thereby increasing the heat dissipation area and further improving the heat dissipation efficiency.

[0058] It should be noted that the mounting plate 22 is a metal component, and metal components have better thermal conductivity. This can improve the heat dissipation capacity of the mounting plate 22 and further enhance the heat dissipation effect on the electronic control board 21.

[0059] In some embodiments of this application, such as Figures 2 to 4 As shown, a recessed structure 2212 is provided on the side of the mounting plate 22 facing the electronic control board 21. The recessed structure 2212 is adapted to the heat dissipation device 23, and the heat dissipation device 23 is housed in the recessed structure 2212.

[0060] By setting a recessed structure 2212 and using the recessed structure 2212 to accommodate the heat dissipation device 23, the structural compactness of the electrical control box assembly 20 is improved, making it easier to arrange and install the electrical control box assembly 20 within the housing 10.

[0061] In addition, by placing the heat dissipation device 23 inside the housing structure, the heat dissipation device 23 can conduct heat with multiple surfaces of the housing structure. This increases the contact area between the heat dissipation device 23 and the mounting plate 22, thereby improving the heat dissipation capacity of the mounting plate 22 for the heat dissipation device 23.

[0062] It should be noted that the recessed structure 2212 can be integrally formed with the mounting plate 22, or it can be formed on the mounting plate 22 through secondary processing. For example, it can be formed on the mounting plate 22 by stamping.

[0063] In this application, the connection between the heat dissipation device 23 and the mounting plate 22 includes, but is not limited to, snap-fitting, welding, or connection through connecting components.

[0064] The control board 21 can be fixed to the heat dissipation device 23 (fixing methods include but are not limited to snap-fit ​​or connection through connecting parts), or it can be fixed to the mounting plate 22 (it can be directly connected to the mounting plate 22 or indirectly connected to the mounting plate 22, fixing methods include but are not limited to snap-fit ​​or connection through connecting parts), and it can be fixedly connected to the heat dissipation device 23 and the mounting plate 22 respectively (fixing methods include but are not limited to snap-fit ​​or connection through connecting parts).

[0065] In some embodiments of this application, such as Figure 6 As shown, the electrical control box assembly 20 includes a connector 25, and the number of connectors 25 is at least one. The electrical control board 21, the heat dissipation device 23 and the mounting plate 22 are connected together by the connector 25.

[0066] The electronic control board 21, the heat dissipation device 23 and the mounting plate 22 are connected by the connector 25, which simplifies the assembly operation and improves the assembly efficiency.

[0067] It should be noted that the connector 25 can be a screw or rivet or other similar component.

[0068] In addition, the number of connectors 25 can be one or more (two or more). When there are multiple connectors 25, the multiple connectors 25 are distributed in a dispersed manner, which can improve the connection strength and further enhance the structural stability.

[0069] In some embodiments of this application, the electrical control box assembly 20 includes a connector 25, and the electrical control board 21, the heat dissipation device 23, and the mounting plate 22 are connected and fixed by the connector 25. The connector 25 is configured as a screw, which includes a stud and a nut connected together. During assembly, on one side of the electrical control board 21 (the side of the electrical control board 21 facing the front a of the housing 10), the stud is passed sequentially through the electrical control board 21 and the heat dissipation device 23, and the stud that passes through the heat dissipation device 23 is threaded onto the mounting plate 22 until the nut abuts against the electrical control board 21.

[0070] Specifically, a threaded hole is provided on the mounting plate 22, and the stud of the screw passes through the heat dissipation device 23 and is threaded into the threaded hole. By setting the connector 25 as a screw, the structure can be simplified and the ease of assembly can be improved.

[0071] In some embodiments of this application, such as Figures 2 to 6 As shown, the heat dissipation device 23 includes a heat exchange body 231 and a medium pipeline 232. An electronic control board 21 is fitted to the heat exchange body 231, allowing heat exchange between the electronic control board 21 and the heat dissipation device 23 at the fitted position. The heat exchange body 231 has through-channels and vias, which are not interconnected. The medium pipeline 232 supplies flow to the heat exchange structure. A portion of the medium pipeline 232 passes through the through-channels, with the inner wall of the through-channels fitting against the medium pipeline 232. The heat exchange medium exchanges heat with the electronic control board 21 through the medium pipeline 232, the through-channels, and the heat exchange body 231.

[0072] By setting up the medium pipeline 232, heat exchange is achieved on the electronic control board 21 using the heat exchange medium. This improves the heat exchange efficiency of the electronic control board 21, effectively reduces the temperature rise of the electronic control board 21, and thus reduces the failure of the electronic control board 21 caused by temperature rise.

[0073] It should be noted that the heat exchange medium can be water or refrigerant, etc. For example, if the heat exchange medium is refrigerant, the medium pipeline 232 is connected to the refrigerant system of the outdoor unit 100, and the refrigerant is used to dissipate heat from the electronic control board 21, which improves the heat dissipation efficiency and simplifies the structure.

[0074] The electrical control box assembly 20 includes a connector 25, an electrical control board 21, a heat dissipation device 23, and a mounting plate 22, which are connected and fixed by the connector 25 for screws. A through hole is formed in the heat exchange body 231, through which the screw studs pass and are threaded onto the mounting plate 22. By providing the through hole, the screw studs can be effectively avoided, thus allowing the electrical control board 21, heat dissipation device 23, and mounting plate 22 to be connected and fixed using screws.

[0075] In addition, there can be one or more through channels. When there are multiple through channels, the medium pipeline 232 has a bent structure, that is, the medium pipeline 232 is arranged in a meandering structure. This increases the contact surface between the medium pipeline 232 and the heat exchange body 231, and increases the heat exchange area between the medium pipeline 232 and the heat exchange body 231, thereby further improving the heat exchange efficiency of the heat dissipation device 23 to the electrical control board 21.

[0076] Furthermore, the heat exchanger body 231 can be an integral structure or a split structure. The heat exchanger body 231 is a heat-conducting component, and the medium pipeline 232 is also a heat-conducting component. For example, both the heat exchanger body 231 and the medium pipeline 232 can be metal components.

[0077] In some embodiments of this application, such as Figures 2 to 4 ,as well as Figure 6 As shown, the heat exchange body 231 includes a first part 2311 and a second part 2312. A first groove is provided on the surface of the first part 2311 facing the second part 2312, and a second groove is provided on the surface of the second part 2312 facing the first part 2311. Through holes pass through both the first part 2311 and the second part 2312, but are not connected to either the first or second groove. The first part 2311 is connected to the second part 2312, and the first and second grooves interlock and form a through-passage.

[0078] Specifically, the electrical control box assembly 20 includes a connector 25, which is configured as a screw. The electrical control board 21, the heat dissipation device 23, and the mounting plate 22 are connected and fixed by the screw. When the stud of the screw passes through the through hole and is threaded into the mounting plate 22, the first part 2311 and the second part 2312 are fastened to each other. Thus, the assembly of the first part 2311 and the second part 2312 can be achieved using the screw.

[0079] It should be noted that, in this application, when assembling the heat dissipation device 23, the medium pipeline 232 is first placed in the first groove, and then the second part 2312 is fastened onto the first part 2311. The first part 2311 and the second part 2312 are connected using pre-installed screws. The assembled structure is then placed in the installation position, and the control board 21, the heat dissipation device 23, and the mounting plate 22 are connected using screws to fix the first part 2311 and the second part 2312, and to fix the medium pipeline 232 in the through channel.

[0080] The first part 2311 and the second part 2312 may be arranged in a mirror image or not. The first part 2311 and the second part 2312 are metal components, for example, both are aluminum components.

[0081] In some embodiments of this application, such as Figures 2 to 4 As shown, a first mating structure 2313 is provided on the first part 2311, and a second mating structure 2211 is provided on the mounting plate 22. The first mating structure 2313 and the second mating structure 2211 are mated to each other, and the first mating structure 2313 can be separated from the second mating structure 2211.

[0082] Specifically, during assembly, the heat dissipation device 23 is first positioned in its installation location, allowing the first mating structure 2313 and the second mating structure 2211 to engage with each other, thus pre-fixing the heat dissipation device 23. Then, the control board 21, the heat dissipation device 23, and the mounting plate 22 are secured together using screw-type connectors 25. By setting the first mating structure 2313 and the second mating structure 2211, the pre-fixation of the heat dissipation device 23 is achieved, thereby improving the assembly accuracy of the heat dissipation device 23.

[0083] It should be noted that the first mating structure 2313 and the second mating structure 2211 can be mated in a concave-convex manner or a magnetic mating manner, etc.

[0084] In some embodiments of this application, such as Figures 2 to 4 As shown, the first mating structure 2313 is configured as a mounting hole, and the second mating structure 2211 is configured as a mounting protrusion, with the mounting hole fitted onto the mounting protrusion.

[0085] Specifically, the mounting protrusion is located on the top of the mounting plate 22. When installing the heat dissipation device 23, it is assembled from top to bottom, so that the mounting holes fit onto the mounting protrusion. This structure is simple and facilitates assembly. In addition, the cooperation between the mounting holes and the mounting protrusion can limit the horizontal movement of the heat dissipation device 23.

[0086] It should be noted that the number of mounting protrusions can be one or more (two or more), and the number of mounting protrusions is consistent with the number of mounting holes, and they are set one-to-one.

[0087] In some embodiments of this application, such as Figures 2 to 6 As shown, the electrical control box assembly 20 also includes a box body 24, which is located on the side of the mounting plate 22 facing the front a and connected to the mounting plate 22. At least a portion of the electrical control board 21 is housed in the box body 24. The box body 24 has a cutout position 241, where the electrical control board 21 is attached to the heat dissipation device 23 and exchanges heat with the heat dissipation device 23.

[0088] Specifically, the mounting plate 22 includes a back plate portion 221, a first side plate portion 222, and a second side plate portion 223. The first side plate portion 222 and the second side plate portion 223 are respectively disposed on opposite sides of the back plate portion 221, making the mounting plate 22 have a U-shaped structure. The back plate portion 221 faces the front side a of the housing 10, and the second side plate portion 223 is connected to the middle partition 11 inside the housing (the connection method includes, but is not limited to, snap-fit, adhesive, welding, or connection via connecting parts). A recessed structure 2212 is disposed on the back plate portion 221. The U-shaped mounting plate 22 forms a receiving space. The housing 24, the electronic control board 21, and the heat dissipation device 23 are all disposed in the receiving space. The receiving space accommodates the housing 24, the electronic control board 21, and the heat dissipation device 23, thus effectively forming protection and reducing the impact of the external environment on the electronic control board 21 and other components.

[0089] The housing 24 is connected to at least one of the back panel 221, the first side panel 222, and the second side panel 223 (the connection method includes, but is not limited to, snap-fit ​​or connection through connecting parts). The electronic control board 21 is fixed inside the housing 24, and the fixing method includes, but is not limited to, snap-fit ​​or connection through connecting parts 25. The housing 24 forms a protective barrier for the electronic control board 21, thereby reducing the impact of the external environment on the electronic control board 21 (such as external impact).

[0090] It should be noted that the box body 24 can be a metal part or a non-metal part. For example, the box body 24 can be a plastic part, which is processed by injection molding, and the hollow position 241 is formed in one piece with the box body 24.

[0091] like Figures 1 to 6 As shown, the second aspect of this application proposes an air conditioner, which includes an outdoor unit 100 and an indoor unit. The outdoor unit 100 is the outdoor unit 100 described above, and the indoor unit is connected to the outdoor unit 100 to form a refrigerant circulation path.

[0092] In the outdoor unit 100 of the air conditioner of this application, the front side a of the casing 10 is set as the maintenance side, the electronic control board 21 is set facing the front side a of the casing 10, and the heat dissipation device 23 is set on the side of the electronic control board 21 away from the front side a. In this way, the obstruction of the electronic control board 21 by the heat dissipation device 23 can be reduced, thereby improving the convenience of maintenance of the electronic control board 21.

[0093] In this application, the aforementioned air conditioner can be a household air conditioner, etc. The structure of other parts of the air conditioner can be found in existing technology and will not be repeated here. The above description is merely a preferred embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. An outdoor unit for use in an air conditioner, characterized in that, The outdoor unit includes: A housing, the housing including a front side, at least the front side being configured as a maintenance side; An electrical control box assembly is disposed within the housing. The electrical control box assembly includes a mounting plate, an electrical control board, and a heat dissipation device. The mounting plate is connected to the housing, the heat dissipation device is mounted on the mounting plate, and the electrical control board is disposed on the side of the heat dissipation device facing the front. At least one of the mounting plate and the heat dissipation device is connected to the electrical control board, and the heat dissipation device is used to exchange heat with the electrical control board.

2. The outdoor unit according to claim 1, characterized in that, The mounting plate is thermally connected to the heat dissipation device.

3. The outdoor unit according to claim 1, characterized in that, The mounting plate has a recessed structure on the side facing the electronic control board, and the heat dissipation device is housed within the recessed structure.

4. The outdoor unit according to any one of claims 1 to 3, characterized in that, The electrical control box assembly further includes at least one connector, and the mounting plate, the heat dissipation device and the electrical control board are connected through the at least one connector.

5. The outdoor unit according to claim 4, characterized in that, The connector is a screw, which includes a connected nut and a stud. The nut abuts against the side of the electronic control board facing the front, and the stud passes through the electronic control board and the heat dissipation device in sequence and is threadedly connected to the mounting plate.

6. The outdoor unit according to claim 5, characterized in that, The heat dissipation device includes: A heat exchange body is attached to the electronic control board and can exchange heat with the electronic control board. The heat exchange body includes non-communicating through channels and through holes. The number of through holes is the same as the number of screws. The through holes allow the studs to pass through. A medium pipeline, part of which is installed in the through-channel, is used to supply heat exchange medium and is thermally connected to the heat exchange medium.

7. The outdoor unit according to claim 6, characterized in that, The heat exchanger body includes: The first part has a first groove, and the through hole passes through the first part and is not connected to the first groove; The second part has a second groove, the through hole passes through the second part and is not connected to the second groove, and the second groove and the first groove together form the through channel.

8. The outdoor unit according to claim 7, characterized in that, The first part is provided with a first mating structure, and the mounting plate is provided with a second mating structure. The first mating structure and the second mating structure are mated in a separable manner so that the heat dissipation device is pre-fixed on the mounting plate.

9. The outdoor unit according to claim 8, characterized in that, The first mating structure is a mounting hole, and the second mating structure is a mounting protrusion, with the mounting hole fitted onto the mounting protrusion; And / or, the electrical control box assembly further includes a box body, the box body being disposed on the side of the mounting plate facing the front and connected to the mounting plate, at least a portion of the electrical control board being housed in the box body, the box body having a cutout position, the electrical control board being in contact with the heat dissipation device at the cutout position and exchanging heat with the heat dissipation device.

10. An air conditioner, characterized in that, The air conditioner includes: The outdoor unit is the outdoor unit according to any one of claims 1 to 9; The indoor unit is connected to the outdoor unit and forms a refrigerant circulation path.

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