Electric control box assembly and air conditioner
By setting up a heat dissipation unit combination structure inside and outside the control box, the problems of uneven heat dissipation and reliability of the control box are solved, achieving efficient heat dissipation and uniform temperature distribution, and improving the stability and reliability of the control devices.
Patent Information
- Application Number
- CN202423323219.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-31
- Publication Date
- 2025-12-19
- Estimated Expiration
- 2034-12-31
AI Technical Summary
The heat dissipation module of the existing electronic control box has limited heat dissipation effect, resulting in uneven heat distribution of electronic control devices, failure of individual devices due to excessive temperature, and the impact of dust and metal powder on reliability.
The system employs a combination structure with a second heat dissipation unit inside the electrical control box and a first heat dissipation unit outside. The second heat dissipation unit is located inside the housing cavity, while the first heat dissipation unit extends to the outside through a through hole. Combined with components such as a heat-equalizing motherboard and a heat-conducting aluminum block, it achieves effective heat dissipation and uniform temperature distribution.
It improves the heat dissipation efficiency and stability of electronic control devices, prevents heat accumulation, extends the service life of electronic control devices, and enhances the reliability of electronic control boxes.
Smart Images
Figure CN223691258U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of household appliances, in particular to an electric control box assembly and an air conditioner. BACKGROUND
[0002] The electric control box is an element for centralized control and management of electrical signals and power in electrical equipment or systems, and is an essential component in household appliances. The electric control devices in the electric control box generate heat during operation, especially high-power electric control devices, which usually need a part of the refrigerant in the air conditioner system to share the heat dissipation of the electric control devices, to some extent, affecting the operation efficiency of the whole machine and increasing the power consumption.
[0003] In related technologies, a finned heat sink is usually used to dissipate heat from the electric control devices in the electric control box. Due to the structural limitations of the heat dissipation module itself, the heat dissipation effect is limited. For traditional multi-split air conditioners, the electric control box is located in the wind field of the whole machine, so the electric control box is designed with an inlet and outlet air port to make the wind field in the electric control box flow, thereby taking away the heat generated by the high-power density devices in the electric control box to achieve heat dissipation effect. However, the design of the inlet and outlet air port will accumulate dust in the electric control box during long-term operation of the whole machine, and the reliability of the electric control devices will be greatly affected, especially in industrial parks where the air is mixed with metal powder, the service life of the electric control devices is greatly reduced. The electric control devices in the electric control box have different power densities, and due to the different operating power and use state of each device, different heat field distributions are caused, which may result in uneven heat distribution and cause the temperature of individual electric control devices to be too high and fail.
[0004] Therefore, the heat dissipation module in the electric control box needs to be further improved to improve the heat dissipation efficiency. Utility model content
[0005] Therefore, the purpose of the present application is to provide an electric control box assembly and an air conditioner.
[0006] The technical scheme adopted by the present application to solve the above technical problems is:
[0007] In a first aspect, the present application provides an electric control box assembly, comprising:
[0008] An electric control module comprising a box body, the box body defining a receiving cavity, the receiving cavity being provided with components, and the box body being provided with a through hole; and
[0009] A heat dissipation module comprising a first heat dissipation unit and a second heat dissipation unit, the first heat dissipation unit being connected to the components, and the end of the first heat dissipation unit away from the components extending to outside the receiving cavity through the through hole, and the second heat dissipation unit being located in the receiving cavity.
[0010] Optionally, in some embodiments of the present application, the first heat dissipation unit comprises a first heat dissipation member and a second heat dissipation member connected together, the second heat dissipation member is located in the accommodating cavity, and the first heat dissipation member extends out of the accommodating cavity through the through hole; the second heat dissipation unit comprises a third heat dissipation member, and the third heat dissipation member and the component are connected to the same side of the second heat dissipation member.
[0011] Optionally, in some embodiments of the present application, the first heat dissipation member has a smaller area of the orthogonal projection on the plane of the through hole than the second heat dissipation member; and / or, the first heat dissipation member has a smaller area of the orthogonal projection on the plane of the through hole than the area of the through hole; and / or, the second heat dissipation member has a larger area of the orthogonal projection on the plane of the through hole than the area of the through hole.
[0012] Optionally, in some embodiments of the present application, the first heat dissipation member comprises first heat dissipation fins, the second heat dissipation member comprises at least one uniform temperature main plate, and the third heat dissipation member comprises second heat dissipation fins.
[0013] Optionally, in some embodiments of the present application, the second heat dissipation member comprises a plurality of uniform temperature main plates connected together, and further comprises a uniform temperature cross plate located between the uniform temperature main plates and the first heat dissipation member and connected to the plurality of uniform temperature main plates.
[0014] Optionally, in some embodiments of the present application, the second heat dissipation member further comprises a heat-conducting aluminum block arranged on the side of the uniform temperature main plate close to the component.
[0015] Optionally, in some embodiments of the present application, the through hole is provided with a sealing member on the circumferential side, and the sealing member is connected to the second heat dissipation member.
[0016] Optionally, in some embodiments of the present application, the electric control module further comprises a mounting seat, the component is fixed on the mounting seat, and the side of the mounting seat away from the component is fixedly connected to the second heat dissipation member.
[0017] Optionally, in some embodiments of the present application, the accommodating cavity is further provided with a fan; and / or, the electric control module further comprises a box cover arranged opposite to the side wall where the through hole is located, and the box cover seals the accommodating cavity.
[0018] In the second aspect, the embodiments of the present application further provide an air conditioner, which comprises the electric control box assembly described above.
[0019] In summary, due to the adoption of the above technical solutions, the present application has at least the following beneficial effects:
[0020] The electrical control box assembly provided in this application, by setting a second heat dissipation unit inside the housing cavity and a first heat dissipation unit outside the housing cavity, can effectively dissipate heat generated by components, thereby improving heat dissipation efficiency. The second heat dissipation unit can effectively reduce the temperature inside the housing cavity and promote airflow, thus facilitating heat dissipation from components not in direct contact with the first heat dissipation unit through air exchange. The first heat dissipation unit, with its large contact area with the components, can expel the heat generated by the components outside the housing cavity, preventing heat accumulation and increased temperature within the housing cavity. The first heat dissipation unit can also exchange heat with the external air to dissipate heat. Through the cooperation of the first and second heat dissipation units, this application can fully dissipate heat generated by components, reduce the temperature inside the housing cavity, and ensure a uniform temperature distribution within the housing cavity, thereby improving the operating efficiency of the components and enhancing their stability and reliability. Attached Figure Description
[0021] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings of the embodiments will be briefly described below. Obviously, the drawings described below only relate to some embodiments of this application and are not intended to limit this application, wherein:
[0022] Figure 1 This is a schematic diagram of the structure of an electrical control box assembly provided in an embodiment of this application;
[0023] Figure 2 for Figure 1 Exploded view;
[0024] Figure 3 for Figure 1 Another structural schematic diagram of the electrical control box assembly;
[0025] Figure 4 This is a schematic diagram of the structure of the heat dissipation module provided in the embodiment of this application;
[0026] Figure 5 for Figure 4 Exploded view;
[0027] Figure 6 This is a schematic diagram of the structure of a heat-equalizing motherboard provided in an embodiment of this application;
[0028] Figure 7 This is a schematic diagram of the structure of a component provided in an embodiment of this application;
[0029] Figure 8 for Figure 1 Another structural schematic diagram of the components in the diagram;
[0030] Figure 9 This is a schematic diagram of the structure of an air conditioner provided in an embodiment of this application;
[0031] Figure 10 for Figure 9 A schematic diagram of the internal structure of an air conditioner.
[0032] Explanation of reference numerals in the attached figures:
[0033] 1-Air conditioner;
[0034] 100 - Electrical control box assembly; 10 - Electrical control module; 11 - Box body; 111 - Receiving cavity; 112 - Through hole; 12 - Components; 121 - Electrical control board; 122 - IPM module A; 123 - IPM module B; 13 - Mounting base; 20 - Heat dissipation module; 21 - First heat dissipation unit; 211 - First heat dissipation component; 212 - Second heat dissipation component; 2121 - Heat spreader main board; 2121a - Evaporator end; 2121b - Condenser end; 2122 - Heat spreader plate; 213 - Thermally conductive aluminum block; 22 - Second heat dissipation unit; 221 - Third heat dissipation component; 23 - Sealing component
[0035] 200 - Housing; 210 - Mounting cavity; 220 - Air inlet; 230 - Fan blade. Detailed Implementation
[0036] The technical solutions of the embodiments of this application will be clearly and comprehensively described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.
[0037] In the description of this application, it should be understood that the terms "length," "width," "thickness," "upper," "lower," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a unique orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or specifying the number of indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more features. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.
[0038] In this application, the word "exemplary" is used to mean "serving as an example, instance, or illustration." Any implementation described as exemplary in this application is not necessarily to be construed as preferred or advantageous over other implementations. The following description is presented for purposes of illustrating the principles of this application. Details of the description can be replaced by alternatives without departing from the scope of this application. In the following description, for purposes of explanation, specific details are set forth to provide a thorough understanding of this application. It will be apparent to one skilled in the art, however, that the present application can be practiced without using these specific details. In other instances, well-known structures and processes are not elaborated in order not to obscure the description of this application with unnecessary details. Thus, the present application is not intended to be limited by the embodiments shown, but is to be accorded the widest scope consistent with the principles and features disclosed herein.
[0039] For the purpose of understanding the scheme of the present application, the spline curves and arrows used in the reference signs of the drawings are described as follows: the components indicated by the spline curves without arrows are solid components, i.e. components having a solid structure; the components indicated by the spline curves with arrows are virtual components, i.e. components having no solid structure.
[0040] In the first aspect, referring to Figure 1 , Figure 2 and Figure 3 , the present application provides an electric control box assembly 100, comprising an electric control module 10 and a heat dissipation module 20. The electric control module 10 comprises a box body 11, the box body 11 defines a containing cavity 111, components 12 are arranged in the containing cavity 111, and the box body 11 is provided with a through hole 112. The heat dissipation module 20 comprises a first heat dissipation unit 21 and a second heat dissipation unit 22, the first heat dissipation unit 21 is connected to the components 12, and the end of the first heat dissipation unit 21 away from the components 12 extends to outside of the containing cavity 111 through the through hole 112, and the second heat dissipation unit 22 is arranged in the containing cavity 111.
[0041] The electric control box assembly 100 provided by the embodiment of the present application can effectively dissipate the heat generated by the components 12 and improve the heat dissipation efficiency by arranging the second heat dissipation unit 22 in the accommodating cavity 111 and arranging the first heat dissipation unit 21 outside the accommodating cavity 111. The second heat dissipation unit 22 can effectively reduce the temperature in the accommodating cavity 111 and promote the flow of air in the accommodating cavity 111, thereby promoting the components 12 not directly in contact with the first heat dissipation unit 21 to dissipate heat by exchanging with the air. The first heat dissipation unit 21 can be in large-area contact with the components 12 and can discharge the heat generated by the components 12 out of the accommodating cavity 111, thereby avoiding the accumulation of heat in the accommodating cavity 111 and increasing the temperature of the accommodating cavity 111. The first heat dissipation unit 21 can exchange heat with the air in the external environment to dissipate heat. The first heat dissipation unit 21 and the second heat dissipation unit 22 can cooperate to sufficiently dissipate the heat generated by the components 12, reduce the temperature in the accommodating cavity 111, and uniformly distribute the temperature in the accommodating cavity 111, thereby improving the operation efficiency of the components 12 and improving the stability and reliability of the components 12.
[0042] In some embodiments of the present application, referring to Figure 4 and Figure 5 , the first heat dissipation unit 21 comprises a first heat dissipation member 211 and a second heat dissipation member 212 connected together. The second heat dissipation member 212 is located in the accommodating cavity 111 and connected to the components 12. The first heat dissipation member 211 extends to the outside of the accommodating cavity 111 through the through hole 112. The first heat dissipation member 211 can be connected to the second heat dissipation member 212 in a conventional manner in the art, such as bolt connection, clamping, gluing, etc. The first heat dissipation member 211 is attached to the second heat dissipation member 212, which is conducive to the second heat dissipation member 212 absorbing the heat in the accommodating cavity 111 and conducting the heat out through the first heat dissipation member 211, thereby fully dissipating the heat.
[0043] In some embodiments of the present application, the area of the first heat dissipation member 211 in the plane of the through hole 112 is smaller than the area of the second heat dissipation member 212 in the plane of the through hole 112.
[0044] In some embodiments of the present application, the area of the first heat dissipation member 211 in the plane of the through hole 112 is smaller than the area of the through hole 112.
[0045] In some embodiments of the present application, the area of the second heat dissipation member 212 in the plane of the through hole 112 is greater than the area of the through hole 112.
[0046] It can be understood that the second heat dissipation member 212 abuts against the side wall where the through hole 112 is located, and the first heat dissipation member 211 extends to the outside of the accommodating cavity 111 through the through hole 112. In other words, the second heat dissipation member 212 closes the through hole 112, so as to avoid water seeping through the gap between the second heat dissipation member 212 and the box body 11 into the accommodating cavity 111 to damage the components 12.
[0047] In some embodiments of the present application, referring again to Figure 3 The side of the through hole 112 is provided with a sealing member 23, and the sealing member 23 is connected with the second heat dissipation member 212. It should be noted that the sealing member 23 is located between the side wall where the through hole 112 is located and the second heat dissipation member 212. The material of the sealing member 23 can be sponge, rubber ring, waterproof glue, etc. The sealing member 23 can fully fill the gap between the side wall where the through hole 112 is located and the second heat dissipation member 212, so as to achieve the effect of sealing and waterproofing.
[0048] In some embodiments of the present application, the second heat dissipation unit 22 includes a third heat dissipation member 221, and the third heat dissipation member 221 and the components 12 are connected to the same side of the second heat dissipation member 212. It can be understood that the area of the second heat dissipation member 212 is relatively large, and the third heat dissipation member 221 and the components 12 are connected to the side of the second heat dissipation member 212 away from the first heat dissipation member 211. The positions of the third heat dissipation member 221 and the components 12 on the second heat dissipation member 212 can be adjusted according to actual conditions, such as the third heat dissipation member 221 can be located below, above or beside the components 12, etc. The third heat dissipation member 221 is located in the accommodating cavity 111, which is conducive to reducing the temperature in the accommodating cavity 111 and dissipating the heat generated by the components 12.
[0049] It should be noted that the third heat dissipation member 221 can be connected to the second heat dissipation member 212 in a conventional manner in the art, such as bolt connection, clamping, gluing, etc. The first heat dissipation member 211 and the third heat dissipation member 221 are respectively connected to the two sides of the second heat dissipation member 212, and the first heat dissipation member 211, the second heat dissipation member 212 and the third heat dissipation member 221 can be installed and connected with the electronic control module 10 as a whole, which is convenient and fast.
[0050] In some embodiments of the present application, the first heat dissipation member 211 includes first heat dissipation fins. The third heat dissipation member 221 includes second heat dissipation fins. The first heat dissipation fins and the second heat dissipation fins are respectively located outside the accommodating cavity 111 and inside the accommodating cavity 111. The design of the fins makes the originally smooth heat dissipation surface uneven, thereby increasing the contact area with air and improving the heat transfer efficiency. When air flows through the heat dissipation fins, the shape and arrangement of the fins can guide the air flow, so that the flow rate increases. The increase in flow rate helps to speed up the transfer of heat from the heat dissipation fins to the air, thereby improving the heat dissipation efficiency.
[0051] In some embodiments of the present application, the second heat dissipation member 212 comprises at least one uniform temperature main plate 2121. The uniform temperature main plate 2121 realizes efficient heat transfer and dissipation through the principle of gas-liquid phase change, has the advantages of high heat dissipation efficiency, accurate temperature control, strong adaptability, lightweight design, and prolonging the service life of the equipment, etc.
[0052] Further, referring to Figure 6 , the uniform temperature main plate 2121 internally comprises a plurality of parallel and independent self-down microchannels, the lower end of the microchannel is the evaporation end 2121a close to the component 12 for quickly absorbing the heat generated by the component 12, and the upper end of the microchannel is the condensation end 2121b for releasing heat. The microchannel is internally provided with a phase change working medium, and the phase change working medium is a liquid with a low boiling point, such as acetone. The heat dissipation of the component 12 is realized through the circulation of the phase change working medium in the evaporation end 2121a and the condensation end 2121b of the microchannel. It can be understood that in some embodiments of the present application, the third heat dissipation member 221 can be arranged close to the evaporation end 2121a side.
[0053] In some embodiments of the present application, referring again to Figure 5 , the second heat dissipation member 212 comprises a plurality of connected uniform temperature main plates 2121, and the plurality of uniform temperature main plates 2121 are connected side by side. Among them, the second heat dissipation member 212 further comprises a uniform temperature cross plate 2122, which is located between the uniform temperature main plate 2121 and the first heat dissipation member 211 and connected with the plurality of uniform temperature main plates 2121. It can be understood that the extension direction of the uniform temperature cross plate 2122 intersects with the extension direction of the uniform temperature main plate 2121, and the uniform temperature cross plate 2122 is beneficial to uniformly transferring and dispersing the heat on the uniform temperature main plate 2121, and accelerating the heat dissipation efficiency.
[0054] In some embodiments of the present application, the uniform temperature main plate 2121 and the uniform temperature cross plate 2122 are both gravity uniform temperature plates. The gravity uniform temperature plate module is simple, low in cost, and easy to obtain.
[0055] In some embodiments of the present application, referring to Figure 7 and Figure 8 , the component 12 comprises an electric control board 121 and IPM module A 122 and IPM module B 123 located on the electric control board 121, and the IPM module A 122 and the IPM module B 123 serve as the main heat source and will generate a large amount of heat during operation.
[0056] Referring again to Figure 5, in some embodiments of the present application, the second heat dissipation member 212 further comprises a heat-conducting aluminum block 213, which is arranged on the side of the uniform temperature main plate 2121 close to the components 12. Further, the orthographic projection of the heat-conducting aluminum block 213 on the electric control board 121 is located between the IPM module A 122 and the IPM module B 123. The heat-conducting aluminum block 213 can fill the assembly difference in height between the IPM module A 122 and the IPM module B 123, and further promote heat conduction and dissipation.
[0057] In some embodiments of the present application, referring again to Figure 5 , the electric control module 10 further comprises a mounting seat 13, the components 12 are fixed on the mounting seat 13, and the side of the mounting seat 13 away from the components 12 is fixedly connected with the second heat dissipation member 212. During assembly, the components 12 are first fixed on the mounting seat 13 to form an integral body, and then the integral body is connected to the second heat dissipation member 212, which can be fixed on the uniform temperature main plate 2121 through screws around the periphery. In this way, the components 12 can be pre-assembled with the heat dissipation module 20 for circuit detection, and after detection, the components 12 are assembled as a whole to the box body 11, without the need for disassembly and reassembly of the components 12 and the heat dissipation module 20, and the waterproof effect is guaranteed, and the installation is convenient and fast.
[0058] In some embodiments of the present application, the electric control module 10 further comprises a box cover, which is arranged opposite to the side wall where the through hole 112 is located, and seals the accommodation cavity 111. The electric control box assembly 100 provided by the present application can be a fully sealed electric control box, which can prevent insects, rodents or water from entering the accommodation cavity 111 to damage the components 12, and the heat dissipation module 20 provided by the present application can effectively dissipate heat to ensure reliable operation of the components 12.
[0059] In some embodiments of the present application, a fan is further arranged in the accommodation cavity 111. The fan can cooperate with the third heat dissipation member 221 in the accommodation cavity 111 to promote the flow of air carrying heat in the accommodation cavity 111, improve the heat exchange efficiency, and reduce the temperature in the accommodation cavity 111.
[0060] Secondly, referring to Figure 9 and Figure 10 , the present application further provides an air conditioner 41 comprising the above-mentioned electric control box assembly 100.
[0061] In some embodiments of the present application, the air conditioner 41 comprises an outdoor unit, the outdoor unit comprises a shell 200, the shell 200 defines an installation cavity 210, the top of the installation cavity 210 is provided with a fan blade 230, the electric control box assembly 100 is located at an upper position in the installation cavity 210, and the shell 200 is provided with an air inlet 220.
[0062] When the outdoor unit is running, the fan blade 230 rotates to output air upward, and the air flow enters the installation cavity 210 from the air inlet 220, and then exchanges heat with the first heat dissipation member 211 from bottom to top in the installation cavity 210, thereby taking away the heat generated by the components 12 during operation. It should be noted that the third heat dissipation member 221 can exchange heat with the outside world through conventional means in the art, such as using the refrigerant in the refrigerant pipe to contact the heat and exchange heat, thereby improving the heat dissipation efficiency of the heat in the containing cavity 111.
[0063] The foregoing description has been set forth to illustrate the general principles of the application. It is apparent, however, that modifications and improvements can be made to the application without departing from the spirit and scope thereof. Such modifications and improvements are intended to be included within the scope of the application.
[0064] Each patent, patent application, patent publication, and other material cited in this application is hereby incorporated by reference in its entirety, except to the extent that the incorporation of a document is expressly inconsistent with the disclosure of the present application. To the extent that any material cited in this application is inconsistent with the patenting history of this application (now or past), the patenting history of this application is hereby incorporated by reference in its entirety. It should be noted that, if there is a discrepancy between the description, definitions, and / or terminology used in the citation and the description, definitions, and / or terminology used in the present application, the description, definitions, and / or terminology used in the present application controls.
Claims
1. An electrical control box assembly characterized by, The application relates to an electric control module and a heat dissipation module. The electric control module comprises a box body, which defines a containing cavity, and a component is arranged in the containing cavity; and a through hole is arranged on the box body. The heat dissipation module comprises a first heat dissipation unit and a second heat dissipation unit; the first heat dissipation unit is connected to the component, and one end of the first heat dissipation unit, which is away from the component, extends to the outside of the containing cavity through the through hole; and the second heat dissipation unit is arranged in the containing cavity. The first heat dissipation unit comprises a first heat dissipation piece and a second heat dissipation piece, the second heat dissipation piece is arranged in the containing cavity, and the first heat dissipation piece extends to the outside of the containing cavity through the through hole; the second heat dissipation unit comprises a third heat dissipation piece, and the third heat dissipation piece and the component are arranged on the same side of the second heat dissipation piece.
2. The electrical control box assembly of claim 1, wherein, The first heat dissipation piece has a smaller area of a projection on a plane of the through hole than the second heat dissipation piece; and / or the first heat dissipation piece has a smaller area of a projection on the plane of the through hole than the through hole; and / or the second heat dissipation piece has a larger area of a projection on the plane of the through hole than the through hole.
3. The electrical control box assembly of claim 2, wherein, The first heat dissipation piece comprises first heat dissipation fins, the second heat dissipation piece comprises at least one uniform temperature main plate, and the third heat dissipation piece comprises second heat dissipation fins.
4. The electrical control box assembly of claim 2, wherein, The second heat dissipation piece comprises a plurality of connected uniform temperature main plates, and further comprises a uniform temperature cross plate, which is arranged between the uniform temperature main plates and the first heat dissipation piece and is connected to the plurality of uniform temperature main plates.
5. The electrical control box assembly of claim 4, wherein, The second heat dissipation piece further comprises a heat-conducting aluminum block, which is arranged on one side of the uniform temperature main plate, which is close to the component.
6. The electrical control box assembly of claim 4, wherein, A sealing piece is arranged on the periphery of the through hole, and the sealing piece is connected to the second heat dissipation piece.
7. The electrical control box assembly of claim 2, wherein, The electric control module further comprises a mounting seat, the component is fixed on the mounting seat, and one side of the mounting seat, which is away from the component, is fixedly connected to the second heat dissipation piece.
8. The electrical control box assembly of claim 2, wherein, The containing cavity is further provided with a fan; and / or the electric control module further comprises a box cover, which is arranged opposite to the side wall of the through hole and seals the containing cavity.
9. The electrical control box assembly of claim 1, wherein, The air conditioner comprises the electric control box assembly according to any one of claims 1 to 9.
10. An air conditioner characterized by comprising: