Electric appliance box assembly for air conditioner and air conditioner

Abstract

The utility model relates to the technical field of air conditioners, particularly provides an electric appliance box assembly for an air conditioner and the air conditioner, and aims to solve the problem that an electric appliance box of an existing air conditioner is poor in heat dissipation performance. In order to achieve the purpose, the electric appliance box assembly comprises an electric appliance box shell which comprises a first side plate; a heat sink; the first circuit board is located in the electric appliance box shell, the back face of the first circuit board is attached to the inner surface of the first side plate or the radiator, and at least one first electronic component is arranged on the front face of the first circuit board; the first end of the heat conduction piece abuts against at least one part of the at least one first electronic component, and the second end of the heat conduction piece bypasses or penetrates through the board body of the first circuit board and then is attached to the inner surface of the first side board or attached to the radiator. According to the utility model, through arranging the heat conduction member, heat of the first electronic component on the front surface of the circuit board is conducted to the radiator through the heat conduction member for heat radiation.

Description

Technical Field

[0001] The utility model relates to the technical field of air conditioners, and specifically provides an electrical box component for an air conditioner and an air conditioner. Background Art

[0002] Air conditioning refers to equipment that regulates and controls the ambient air in a building or structure by artificial means. The cooling / heating system of an air conditioner mainly includes a compressor, an evaporator, a throttling device and a condenser, which are connected to form a closed-loop refrigerant circulation circuit. The normal operation of an air conditioner is inseparable from the electronic control device. For example, the electronic control device installed in the outdoor unit of the air conditioner is generally installed in a fully enclosed box made of sheet metal, usually called an electrical box.

[0003] Traditional air conditioner electrical boxes mainly rely on natural convection to dissipate heat. However, with the rapid development of electronic technology, the heat flux density of electronic components in the electrical box is getting higher and higher, and the heat generated by the electrical box is also getting higher and higher. Traditional heat dissipation methods can no longer meet the needs.

[0004] In order to solve the above problems, some electrical boxes are equipped with corresponding heat sinks and fans. By opening a hole on the back of the electrical box, regular-shaped power devices such as PIM (Power Integrated Module), IPM (Intelligent Power Module), IGBT (Insulated Gate Bipolar Transistor) are placed on the back of the circuit board, and directly attached to the air-cooled heat sink outside the electrical box through the back opening, so that the airflow is driven by the outdoor unit fan to exchange heat with the air-cooled heat sink fins, or directly attached to the surface of the refrigerant radiator through the back opening, so that the heat is removed by the refrigerant convection heat exchange to improve the heat dissipation effect. Other devices such as inductors, capacitors, transformers and other irregular-shaped electronic components mainly exchange heat with the air in the box through convection and take away heat from the heat dissipation holes, and the heat dissipation effect is poor. At the same time, due to the current "three protection" (anti-corrosion, anti-salt spray, and anti-mildew) requirements of electronic equipment, as well as the harsh outdoor environment of the outdoor unit, there are also requirements for waterproofing, pest prevention, and dust prevention, so the use of a fully enclosed shell design to ensure the requirements of a high level of protection undoubtedly further increases the difficulty of heat dissipation of special-shaped electronic components in the box. In the existing fully enclosed electrical box heat dissipation solution, although cooling fans are generally used to enhance the air flow disturbance inside the box and transfer heat to the surface of the electric control box or the refrigerant radiator by thermal convection, the efficiency of this heat dissipation method is relatively low, and the presence of cooling fans may cause a decrease in system reliability.

[0005] Therefore, this field needs a new technical solution to solve the above problems. Utility Model Content

[0006] The utility model aims to solve the above technical problem, that is, to solve the problem that the heat dissipation performance of the electrical box of the existing air conditioner is poor.

[0007] In a first aspect, the utility model provides an electrical box assembly for an air conditioner, the electrical box assembly comprising:

[0008] The electrical box housing includes a first side plate;

[0009] heat sink;

[0010] A first circuit board is located inside the housing of the electrical box, the back of the first circuit board is attached to the inner surface of the first side plate or to the radiator, and at least one first electronic component is disposed on the front of the first circuit board;

[0011] A heat conducting member, wherein a first end thereof abuts against at least a portion of at least one of the first electronic components, and a second end thereof bypasses or passes through the body of the first circuit board and is attached to the inner surface of the first side plate or to the heat sink.

[0012] It should be noted that the first circuit board can be directly or indirectly attached to the inner surface of the first side plate, or directly or indirectly attached to the radiator, such as opening the corresponding position of the first side plate to allow the first circuit board to be attached to the radiator.

[0013] In addition, the shape of the heat conductor can be Z-shaped, L-shaped, U-shaped, etc., and its first end can abut against the side surface of the first electronic component, or it can abut against the top surface of the first electronic component. It can abut only against a part of the top surface or the side surface, or it can completely cover the top surface or the side surface.

[0014] It should also be noted that the second end can be a plate body that bypasses the first circuit board, such as a U-shaped or Z-shaped structure, or it can be an opening on the plate body, and the heat conductor is passed through the plate body and attached to the inner surface of the first side plate or the radiator.

[0015] It is understandable that the first electronic component may be a high-heat or high-power component, such as a capacitor, a relay, a reactor, etc., or a component with an irregular structure or a shape that is difficult to be mounted on a flat mounting surface.

[0016] It can be understood that the heat sink includes a base and fins arranged on the base, and the connection between the heat conductor and the heat sink means that the heat sink is connected to the base of the heat sink.

[0017] In some feasible implementations of the above-mentioned electrical box assembly for air conditioners, a first heat-conducting layer is provided between the first end of the heat-conducting member and the first electronic component; and / or

[0018] A second heat-conducting layer is arranged between the second end of the heat-conducting member and the inner surface of the first side plate or the heat sink.

[0019] It is understandable that the materials of the first thermal conductive layer and the second thermal conductive layer can be thermal conductive interface materials such as thermal grease (heat dissipation paste), thermal conductive silicone sheet (thermal conductive gasket), thermal conductive gel, thermal conductive phase change material, potting glue (such as thermal conductive curing glue, AB glue, thermal conductive glue), etc.

[0020] In some feasible implementations of the above-mentioned electrical box assembly for air conditioners, the electrical box assembly further includes:

[0021] A first heat-conducting box housing surrounds the first electronic component, and a gap between an inner surface of the first heat-conducting box housing and the first electronic component is filled with a first heat-conducting material;

[0022] The first electronic component is connected to the first end of the heat conducting member by means of the first heat conducting box housing and the first heat conducting material.

[0023] It is understandable that the first thermally conductive material can be thermally conductive potting glue, thermally conductive gel, thermally conductive phase change material, thermally conductive curing glue and other thermally conductive materials; the material of the first thermally conductive box shell can be aluminum, aluminum alloy, copper and the like.

[0024] In some feasible implementations of the above-mentioned electrical box assembly for air conditioners, the electrical box assembly further includes:

[0025] a second circuit board, which is located inside the housing of the electrical box, the front side of the second circuit board faces the radiator or the inner surface of the first side plate, and at least one second electronic component is arranged on the front side of the second circuit board;

[0026] The second heat-conducting box shell surrounds the second electronic component, the gap between the inner surface of the second heat-conducting box shell and the second electronic component is filled with a second heat-conducting material, and the second heat-conducting box shell is attached to the inner surface of the first side plate or the heat sink.

[0027] It is understandable that the second electronic component can be a high-heat or high-power component, such as a capacitor, a relay, a reactor, etc., or a component with an irregular structure or a shape that is difficult to be mounted on a flat mounting surface.

[0028] It can be understood that the second thermally conductive material can be a thermally conductive potting glue, a thermally conductive gel, a thermally conductive phase change material, a thermally conductive curing glue and other thermally conductive materials; the material of the second thermally conductive box shell can be aluminum, aluminum alloy, copper and other metal materials with excellent thermal conductivity; in addition, the second thermally conductive box shell can be directly or indirectly attached to the inner surface of the first side plate or the radiator. In addition to direct attachment, a thermally conductive layer can be added between the second thermally conductive box shell and the inner surface of the first side plate or the radiator.

[0029] In some feasible implementations of the above-mentioned electrical box assembly for an air conditioner, a third heat-conducting layer is provided between the second heat-conducting box housing and the inner surface of the first side plate or the radiator.

[0030] It is understandable that the third thermal conductive layer can be a thermal conductive interface material such as thermal grease (heat dissipation paste), thermal conductive silicone sheet (thermal conductive gasket), thermal conductive gel, thermal conductive phase change material, potting glue (such as thermal conductive curing glue, AB glue, thermal conductive glue), etc.

[0031] In some feasible implementations of the above-mentioned electrical box assembly for an air conditioner, the second circuit board is a filter board; and / or the second electronic component is an inductor.

[0032] It can be understood that the inductor element can be a horizontal inductor element or a vertical inductor element.

[0033] In some feasible embodiments of the above-mentioned electrical box assembly for air conditioners, a plurality of third electronic components are arranged on the back of the first circuit board, and the third electronic components are attached to the inner surface of the first side panel or to the radiator.

[0034] It is understandable that the third electronic component can be a power device, including but not limited to PIM (Power Integrated Module), IPM (Intelligent Power Module), IGBT (Insulated Gate Bipolar Transistor), rectifier bridge and other devices with high heat generation.

[0035] In some feasible implementations of the above-mentioned electrical box assembly for an air conditioner, a fourth heat-conducting layer is provided between the third electronic component and the inner surface of the first side plate or the radiator.

[0036] It is understandable that the fourth thermal conductive layer can be a thermal conductive interface material such as thermal grease (heat dissipation paste), thermal conductive silicone sheet (thermal conductive gasket), thermal conductive gel, thermal conductive phase change material, potting glue (such as thermal conductive curing glue, AB glue, thermal conductive glue), etc.

[0037] In some feasible implementations of the above-mentioned electrical box assembly for an air conditioner, the radiator is installed on the outer side of the first side panel.

[0038] In a second aspect, the utility model further provides an air conditioner, comprising the electrical box assembly for an air conditioner as described in any of the aforementioned technical solutions.

[0039] It can be understood that the electrical box can be set in the indoor unit of the air conditioner or in the outdoor unit of the air conditioner. When set in the outdoor unit, the cooling fan of the outdoor unit can be used to promote forced convection of air between the fins of the radiator of the electrical box assembly, or a dedicated fan can be configured for the radiator to achieve forced convection.

[0040] In some feasible implementations of the above-mentioned air conditioner, the air conditioner includes an outdoor unit, the electrical box assembly is arranged in the outdoor unit, and the outdoor unit also includes a cooling fan, and the cooling fan is used to dissipate heat from the radiator.

[0041] The electrical box assembly provided by the utility model directly or indirectly connects the first electronic component on the front side of the first circuit board to the radiator by arranging a heat conducting member, so that the heat of the first electronic component on the front side of the circuit board is transferred to the radiator through the heat conducting member for heat dissipation. In this way, heat dissipation for the double-sided components of the first circuit board is achieved through one radiator, thereby improving the heat dissipation performance of the electrical box and will not damage the closed structure of the electrical box. In addition, since the heat dissipation fan is placed outside the electrical box, it is also convenient to repair in case of failure. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings, in which:

[0043] Figure 1 It is a cross-sectional schematic diagram of the electrical appliance box assembly of the utility model.

[0044] Figure 2 yes Figure 1 Magnified view of area A.

[0045] Figure 3 yes Figure 1 Magnified view of area B.

[0046] Figure 4 It is a schematic diagram of assembling the heat conducting member, the heat sink and the first electronic component in the embodiment of the utility model.

[0047] Figure 5 This is a first assembly schematic diagram of the second circuit board, the second electronic component, the second heat-conducting housing and the third heat-conducting layer of the utility model.

[0048] Figure 6This is a second assembly schematic diagram of the second circuit board, the second electronic component, the second heat-conducting housing and the third heat-conducting layer of the utility model.

[0049] List of reference numerals:

[0050] 1-electrical box housing; 11-first side panel;

[0051] 2- Radiator;

[0052] 3-first circuit board; 31-first electronic component; 32-third electronic component;

[0053] 4-second circuit board; 41-second electronic component;

[0054] 5-first heat conduction box housing;

[0055] 6- second heat conduction box housing;

[0056] 7-heat conducting member; 71-first end; 72-second end;

[0057] 81-first heat conductive material; 82-second heat conductive material;

[0058] 91 - first heat conducting layer; 92 - second heat conducting layer; 93 - third heat conducting layer; 94 - fourth heat conducting layer. DETAILED DESCRIPTION

[0059] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the protection scope of the present invention.

[0060] It should be noted that, in the description of the present invention, terms such as "upper", "lower", "inside" and "outside" indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings. This is only for the convenience of description and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present invention.

[0061] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, a direct connection, or an indirect connection through an intermediate medium, or it can be a connection between the two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances. In addition, the terms "first", "second", "third", and "fourth" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0062] like Figure 1 As shown, an embodiment of the utility model provides an electrical box assembly for an air conditioner, including an electrical box housing 1, a radiator 2, a first circuit board 3, a second circuit board 4, a first heat-conducting box housing 5, a second heat-conducting box housing 6 and a heat-conducting member 7.

[0063] like Figure 1 As shown, the interior of the electrical box housing 1 has a space capable of accommodating the first circuit board 3 and the second circuit board 4. The electrical box housing 1 is a metal housing, specifically an aluminum shell, a copper shell, a stainless steel shell, etc. The electrical box housing 1 is constructed with a first side plate 11, which is one of the two plates with a larger area of ​​the electrical box housing 1, and the plate on the opposite side of the first side plate 11 is called the second side plate (not marked). The first side plate 11 can be correspondingly provided with a matching through hole (not marked) for the third electronic component 32 on the heat conducting member 7 or the first circuit board 3 to pass through. The size of the matching through hole of the first side plate 11 corresponds to the size of the object passing through, and will not affect the internal closure of the electrical box housing 1. The electrical box housing 1 can be fixedly mounted on the outdoor unit of the air conditioner by a mounting member, and the electrical box housing 1 can also be fixedly mounted on the radiator 2, specifically, the outer surface of the first side plate 11 of the electrical box housing 1 is fitted and connected to the radiator 2, such as by bonding, fastener fixed connection, clamping, etc., so that the electrical box housing 1 can directly dissipate heat through the radiator 2.

[0064] Continue to refer Figure 1 The heat sink 2 is constructed with a base (not shown), the base is attached to the third electronic component 32 arranged on the back of the first circuit board 3, and the plurality of parallel plate structures arranged on the base are fins. The heat sink 2 is made of metal with excellent thermal conductivity, such as aluminum, aluminum alloy, copper, etc. When working, the fan is used to force the air between the fins to circulate, so as to quickly take away the heat with the help of the circulating air.

[0065] like Figure 1 and Figure 2As shown, the first circuit board 3 is a double-sided PCB circuit board, the front side of the first circuit board 3 is provided with a first electronic component 31, and the back side of the first circuit board 3 is provided with a third electronic component 32. The first electronic component 31 can be a high-heat or high-power component, such as a capacitor, a relay, a reactor, etc., or a component with an irregular structure or a shape that is difficult to be attached to a flat mounting surface; the third electronic component 32 is a power component with a flat shape and easy to be attached to a flat mounting surface, such as an IGBT module (Insulated Gate Bipolar Transistor), an IPM module (Intelligent Power Module), a PIM module (Power Integrated Module) or a rectifier bridge module, etc. The first circuit board 3 is located inside the electrical box housing 1. In the present embodiment, the first circuit board 3 is fixedly mounted on the radiator 2 by passing through the matching through hole of the first side panel 11 with the help of the third electronic component 32. The first circuit board 3 can also be fixedly mounted on the first side panel 11 with the help of the third electronic component 32, or can be fixedly mounted on other inner surfaces of the electrical box housing 1 with the help of a bracket. The front side of the first circuit board 3 faces away from or to the side of the radiator 2. The first electronic component 31 is connected to the radiator 2 with the help of the heat conductor 7, so that its own heat is transferred to the radiator 2 with the help of the heat conductor 7 for heat dissipation.

[0066] Specifically, Figure 1 and Figure 2 As shown, the heat conductor 7 is used to conduct the heat generated by the first electronic component 31 to the heat sink 2. The heat conductor 7 is a component with heat conduction ability, and can be constructed as a heat-conducting sheet metal structure. The shape and structure of the heat-conducting sheet metal is a bent or arc-shaped structure. Specifically, both ends can be a right-angle bent shape structure for easy installation and fixation. The material is a metal material such as aluminum, copper, iron, steel, etc. It can also be a non-metallic material with excellent high thermal conductivity such as high thermal conductivity plastic or high thermal conductivity ceramic. The heat conductor 7 can also be constructed as a heat pipe, gravity heat pipe, loop heat pipe, temperature equalizing plate, etc., which conducts the heat generated by the first electronic component 31 to the heat sink 2 through liquid flow or material phase change heat. Figure 2 As shown, in this embodiment, the heat conducting member 7 is constructed in a Z shape, and the first end 71 of the heat conducting member 7 is connected to the first electronic component 31, such as by bonding and fixing, and the second end 72 of the heat conducting member 7 is connected to the radiator 2 through the matching through hole of the first side plate 11, specifically by bonding, screws or snaps. Through the above arrangement, the first electronic component 31 on the front of the first circuit board 3 can be connected to the radiator 2, so that the heat of the first electronic component 31 is transferred to the radiator 2 through the heat conducting member 7 for heat dissipation, achieving the purpose of heat dissipation for the double-sided components of the first circuit board 3 through one radiator 2, improving the heat dissipation performance of the electrical box, and will not damage the closed structure of the electrical box.

[0067] In some specific embodiments, Figure 2 As shown, a first heat-conducting layer 91 is also provided between the first end 71 of the heat-conducting member 7 and the first electronic component 31; and / or a second heat-conducting layer 92 is provided between the second end 72 of the heat-conducting member 7 and the heat sink 2, and the heat-conducting layer can fill the gap between the first end 71 of the heat-conducting member 7 and the first electronic component 31 and the gap between the second end 72 of the heat-conducting member 7 and the heat sink 2, thereby reducing the resistance and loss during the heat transfer process and improving the heat conduction efficiency. The material of the first heat-conducting layer 91 and the second heat-conducting layer 92 can be a heat-conducting interface material such as heat-conducting silicone grease (heat-dissipating paste), heat-conducting silicone sheet (heat-conducting gasket), heat-conducting gel, heat-conducting phase change material, potting glue (such as heat-conducting curing glue, AB glue, heat-conducting glue), etc.

[0068] In some specific embodiments, Figure 2 As shown, the third electronic component 32 is connected to the radiator 2 through the matching through hole of the first side plate 11, and a fourth heat-conducting layer 94 is provided between the third electronic component 32 and the radiator 2. The heat-conducting layer can fill the gap between the third electronic component 32 and the radiator 2, reduce the resistance and loss during the heat transfer process, and improve the heat conduction efficiency. The material of the fourth heat-conducting layer 94 can be a heat-conducting interface material such as heat-conducting silicone grease (heat-conducting paste), heat-conducting silicone sheet (heat-conducting gasket), heat-conducting gel, heat-conducting phase change material, potting glue (such as heat-conducting curing glue, AB glue, heat-conducting glue), etc.

[0069] like Figure 1 and Figure 3 As shown, the second circuit board 4 is a single-sided PCB circuit board or a filter board, and a second electronic component 41 is arranged on the front of the second circuit board 4. The second electronic component 41 is a component with an irregular structure or a component whose shape is difficult to be attached to a flat mounting surface. Specifically, it can be an inductor element, or a capacitor element, a transformer, a relay or a reactor, etc. Further, the inductor element can be a horizontal inductor element or a vertical inductor element. The second circuit board 4 is located inside the electrical box housing 1. In this embodiment, the second electronic component 41 is fixedly installed on the radiator 2 through the matching through hole of the first side plate 11, or it can be fixedly installed on the inner surface of the first side plate 11 with the help of the second electronic component 41, or it can be fixedly installed on other inner surfaces of the electrical box housing 1 with the help of a bracket. The front of the second circuit board 4 faces the radiator 2, and the second electronic component 41 is connected to the radiator 2 with the help of the second heat-conducting box housing 6 and the second heat-conducting material 82, so that its own heat is transferred to the radiator 2 for heat dissipation.

[0070] like Figure 3As shown, the second heat-conducting box shell 6 surrounds the second electronic component 41, and the second heat-conducting box shell 6 is located inside the electrical box shell 1. The gap between the inner surface of the second heat-conducting box shell 6 and the second electronic component 41 is filled with a second heat-conducting material 82. The outer surface of the second heat-conducting box shell 6 is connected to the radiator 2 through the matching through hole of the first side plate 11. The second heat-conducting box shell 6 conducts the heat emitted by the second electronic component 41 to the radiator 2 with the help of the second heat-conducting material 82. The second heat-conducting box shell 6 is a shell structure with heat conduction ability, which can be a cylindrical shell or a square shell, etc. The material can be metal materials such as aluminum, aluminum alloy, copper, iron, steel, etc., or it can be non-metallic materials with high thermal conductivity such as plastic plates or temperature-averaging plates. Figure 5 As shown, the shape of the second heat-conducting box housing 6 is cylindrical, which is used to match the situation where the second electronic component 41 is a horizontal inductor component, such as Figure 6 As shown, the shape of the second heat-conducting box shell 6 is a cube, which is used to match the situation where the second electronic component 41 is a vertical inductor. The second heat-conducting material 82 can be a heat-conducting material such as a heat-conducting potting glue, a heat-conducting gel, a heat-conducting phase change material, and a heat-conducting curing glue. Through the above arrangement, the heat of the second electronic component 41 with an irregular structure or a structure that is difficult to be attached to a flat mounting surface can be transferred to the radiator 2 for heat dissipation by means of the second heat-conducting box shell 6 and the second heat-conducting material 82, thereby increasing the heat dissipation contact area of ​​the second electronic component 41, thereby improving the heat dissipation performance of the electrical box, and will not damage the closed structure of the electrical box.

[0071] In some specific embodiments, Figure 3 As shown, a third heat-conducting layer 93 is provided between the outer surface of the second heat-conducting box housing 6 and the radiator 2, and the heat-conducting layer can fill the gap between the second heat-conducting box housing 6 and the radiator 2, reduce the resistance and loss in the heat transfer process, and improve the heat conduction efficiency. The material of the third heat-conducting layer 93 can be a heat-conducting interface material such as heat-conducting silicone grease (heat-dissipating paste), heat-conducting silicone sheet (heat-conducting gasket), heat-conducting gel, heat-conducting phase change material, potting glue (such as heat-conducting curing glue, AB glue, heat-conducting glue), etc.

[0072] In some specific embodiments, the first electronic component 31 is further provided with a first heat-conducting box housing 5, such as Figure 4As shown, the first heat-conducting box shell 5 surrounds the first electronic component 31, and the gap between the inner surface of the first heat-conducting box shell 5 and the first electronic component 31 is filled with the first heat-conducting material 81. The first heat-conducting box shell 5 is located inside the electrical box shell 1, and the first electronic component 31 is connected with the first heat-conducting box shell 5 and the first heat-conducting material 81. The first heat-conducting box shell 5 is used to conduct the heat emitted by the first electronic component 31 to the first end 71 of the heat-conducting member 7 with the help of the first heat-conducting material 81. The first heat-conducting box shell 5 is a shell with heat conductivity, and the material can be metal materials such as aluminum, aluminum alloy, copper, iron, steel, etc., or non-metallic materials with high thermal conductivity such as plastic sheets or temperature-averaging sheets. The shape of the first heat-conducting box shell 5 is cylindrical or cubic, and the first heat-conducting material 81 can be heat-conducting materials such as heat-conducting potting glue, heat-conducting gel, heat-conducting phase change material, and heat-conducting curing glue. Through the above-mentioned arrangement, the heat of the first electronic component 31 having an irregular structure or a structure that is difficult to be mounted on a flat mounting surface can be conducted to the radiator 2 for dissipation with the help of the first heat-conducting box shell 5 and the first heat-conducting material 81, thereby further increasing the heat dissipation contact area of ​​the first electronic component 31, thereby improving the heat dissipation performance of the electrical box and will not damage the closed structure of the electrical box.

[0073] In some specific embodiments, Figure 4 As shown, a first heat-conducting layer 91 is arranged between the outer surface of the first heat-conducting box shell 5 and the first end 71 of the heat-conducting member 7. The heat-conducting layer can fill the gap between the outer surface of the first heat-conducting box shell 5 and the first end 71 of the heat-conducting member 7, reduce the resistance and loss in the heat transfer process, and improve the heat conduction efficiency.

[0074] The embodiment of the utility model further provides an air conditioner, which includes an outdoor unit. The outdoor unit includes a cooling fan and the electrical box assembly in the above embodiment. The cooling fan is used to dissipate heat from the radiator 2.

[0075] It is understandable that, since the air conditioner is equipped with the above-mentioned electrical box assembly, it has all the technical effects of the above-mentioned electrical box assembly, which will not be repeated here.

[0076] So far, the technical solution of the present invention has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

Claims

1. An electrical box assembly for an air conditioner, characterized in that: The electrical box assembly comprises: The electrical box housing includes a first side plate; heat sink; A first circuit board is located inside the housing of the electrical box, the back of the first circuit board is attached to the inner surface of the first side plate or to the radiator, and at least one first electronic component is disposed on the front of the first circuit board; A heat conducting member, wherein a first end thereof abuts against at least a portion of at least one of the first electronic components, and a second end thereof bypasses or passes through the body of the first circuit board and is attached to the inner surface of the first side plate or to the heat sink.

2. The electrical box assembly for an air conditioner according to claim 1, characterized in that: A first heat-conducting layer is provided between the first end of the heat-conducting member and the first electronic component; and / or A second heat-conducting layer is arranged between the second end of the heat-conducting member and the inner surface of the first side plate or the heat sink.

3. The electrical box assembly for an air conditioner according to claim 2, characterized in that: The electrical box assembly also includes: A first heat-conducting box housing surrounds the first electronic component, and a gap between an inner surface of the first heat-conducting box housing and the first electronic component is filled with a first heat-conducting material; The first electronic component is connected to the first end of the heat conducting member by means of the first heat conducting box housing and the first heat conducting material.

4. The electrical box assembly for an air conditioner according to claim 1, characterized in that: The electrical box assembly also includes: a second circuit board, which is located inside the housing of the electrical box, the front side of the second circuit board faces the radiator or the inner surface of the first side plate, and at least one second electronic component is arranged on the front side of the second circuit board; The second heat-conducting box shell surrounds the second electronic component, the gap between the inner surface of the second heat-conducting box shell and the second electronic component is filled with a second heat-conducting material, and the second heat-conducting box shell is attached to the inner surface of the first side plate or the heat sink.

5. The electrical box assembly for an air conditioner according to claim 4, characterized in that: A third heat-conducting layer is arranged between the second heat-conducting box housing and the inner surface of the first side plate or the heat sink.

6. The electrical box assembly for an air conditioner according to claim 4, characterized in that: The second circuit board is a filter board; and / or the second electronic component is an inductor.

7. The electrical box assembly for an air conditioner according to claim 1, characterized in that: A plurality of third electronic components are arranged on the back side of the first circuit board, and the third electronic components are attached to the inner surface of the first side plate or to the heat sink.

8. The electrical box assembly for an air conditioner according to claim 7, characterized in that: A fourth heat-conducting layer is arranged between the third electronic component and the inner surface of the first side plate or the heat sink.

9. The electrical box assembly for an air conditioner according to claim 1, characterized in that: The radiator is installed on the outer side of the first side plate.

10. An air conditioner, characterized in that: The air conditioner comprises the electrical appliance box assembly for the air conditioner according to any one of claims 1 to 9.

11. The air conditioner according to claim 10, characterized in that: The air conditioner comprises an outdoor unit, the electrical box assembly is arranged in the outdoor unit, and the outdoor unit further comprises a cooling fan, and the cooling fan is used for cooling the radiator.

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