Air conditioner and electrical box assembly thereof

Abstract

This utility model provides an air conditioner and its electrical box assembly. The electrical box assembly includes: a circuit board, a heat sink, and a heat-conducting component. A first electronic component is disposed on one side of the circuit board; the heat sink is located on the other side of the circuit board; the heat-conducting component is made of a heat-conducting material and includes a first pressing part, a second pressing part, and a connecting part; the first pressing part contacts and abuts against the first electronic component; the second pressing part extends between the circuit board and the heat sink and contacts and abuts against the heat sink; the connecting part connects the first pressing part and the second pressing part and is located on the outside of the circuit board; both the first pressing part and the second pressing part are located on the side of the connecting part facing the circuit board. The electrical box assembly of this utility model has the advantages of small overall size and small installation space occupation.

Description

Technical Field

[0001] This utility model relates to the technical field of air conditioners, and in particular to an air conditioner and its electrical box assembly. Background Technology

[0002] With the continuous improvement of people's living standards, air conditioners have become one of the most commonly used electrical appliances. The electrical box of an air conditioner contains a circuit board, which generates significant heat due to the numerous electronic components mounted on it. Related electrical box assemblies include a circuit board, a radiator, and a heat-conducting component. The lower side of the circuit board rests against the radiator. The heat-conducting component includes a first pressing part, a connecting part, and a second pressing part connected in sequence. The connecting part, located outside the circuit board, connects between the first and second pressing parts. The first pressing part rests against an electronic component located on the upper side of the circuit board, and the second pressing part is located outside the connecting part and rests against the upper surface of the radiator. This allows the heat-conducting component to transfer heat from the electronic components to the radiator, thereby improving the radiator's heat dissipation effect. However, because the second pressing part extends away from the connecting part, the overall size of the radiator needs to be relatively large to allow the second pressing part to contact the radiator, resulting in a large overall size of the electrical box assembly and occupying a significant amount of installation space. Utility Model Content

[0003] In view of the above problems, the present invention is proposed to provide an air conditioner and its electrical box assembly that overcome or at least partially solve the above problems.

[0004] One objective of this invention is to solve the problem that the overall size of the electrical box assembly in related technologies is large, occupying a lot of installation space.

[0005] Another objective of this invention is to solve the problem of inconvenient installation of heat-conducting components.

[0006] Specifically, this utility model provides an electrical box assembly for an air conditioner.

[0007] The electrical box assembly of this utility model for an air conditioner includes: a circuit board, on one side of which a first electronic component is disposed; a heat sink, located on the other side of the circuit board; and a heat-conducting component made of a heat-conducting material, comprising: a first pressing part that contacts and abuts against the first electronic component; a second pressing part that extends between the circuit board and the heat sink and contacts and abuts against the heat sink; and a connecting part that connects the first pressing part and the second pressing part and is located on the outside of the circuit board; both the first pressing part and the second pressing part are located on the side of the connecting part facing the circuit board.

[0008] In some embodiments, the electrical box assembly further includes: an electrical box housing, wherein the circuit board, the first electronic component, and the heat-conducting element are disposed within the electrical box housing; the heat-conducting element further includes a mounting portion, which is connected to the second crimping portion and / or the connecting portion; the mounting portion is fixedly mounted on the electrical box housing.

[0009] In some embodiments, the radiator includes a heat dissipation plate, the electrical box housing includes a heat dissipation wall, and the heat dissipation plate is disposed between the second pressing part and the heat dissipation wall; the mounting part is disposed on the outside of the heat dissipation plate and is fixedly mounted on the heat dissipation wall; the mounting part includes: a mounting plate, which is disposed parallel to the heat dissipation wall and mounted on the heat dissipation wall; and a connecting plate, which is perpendicular to the mounting plate, with one end connected to the second pressing part or the connecting part and the other end connected to the mounting plate.

[0010] In some embodiments, the mounting plate is located on the side of the connecting plate away from the heat sink.

[0011] In some embodiments, the area of ​​the first crimping portion projected onto the circuit board is less than or equal to the area of ​​the second crimping portion projected onto the circuit board.

[0012] In some embodiments, the first crimping portion contacts and abuts against the surface of the first electronic component on the side away from the circuit board; the surface of the first crimping portion facing the first electronic component is configured to conformally match the surface of the first electronic component on the side away from the circuit board; and / or, a first thermally conductive medium layer is connected between the first crimping portion and the first electronic component; and a second thermally conductive medium layer is connected between the second crimping portion and the heat sink.

[0013] In some embodiments, the first crimping portion contacts and abuts against the surface of the first electronic component on the side away from the circuit board; both the first crimping portion and the second crimping portion are flat, and the first crimping portion is parallel to the second crimping portion; or, the first crimping portion is an arched arc, the second crimping portion is flat, and the axial direction of the first crimping portion is parallel to the second crimping portion.

[0014] In some embodiments, the ratio of the distance between the first crimping portion and the second crimping portion to the distance between the circuit board and the heat sink is 0.9 to 1.1.

[0015] In some embodiments, the connection between the first crimping portion and the connecting portion is rounded; the connection between the second crimping portion and the connecting portion is also rounded.

[0016] The air conditioner of this utility model is characterized by including the electrical box assembly described in any one of the above claims.

[0017] In this embodiment of the air conditioner's electrical box assembly, the first and second pressing portions of the heat-conducting element contact the first electronic component and the radiator, respectively, so that the heat generated by the first electronic component is sequentially conducted to the radiator through the first pressing portion, the connecting portion, and the second pressing portion. Both the first and second pressing portions are located on the side of the connecting portion facing the circuit board, and the second pressing portion extends between the circuit board and the radiator, thus fully utilizing the space between them. This eliminates the need for the radiator's outer contour to be outside the circuit board's outer contour to provide sufficient mounting area for the second pressing portion, thereby reducing the radiator's size and consequently lowering the overall size of the air conditioner's electrical box assembly, resulting in a smaller space occupied by the electrical box assembly.

[0018] The above and other objects, advantages and features of this utility model will become more apparent to those skilled in the art from the following detailed description of specific embodiments of this utility model in conjunction with the accompanying drawings. Attached Figure Description

[0019] The following sections will describe some specific embodiments of the present invention in a detailed manner by way of example and not limitation, with reference to the accompanying drawings. The same reference numerals in the drawings denote the same or similar parts or components. Those skilled in the art should understand that these drawings are not necessarily drawn to scale. In the drawings:

[0020] Figure 1 This is a schematic structural diagram of the electrical box assembly according to an embodiment of the present utility model;

[0021] Figure 2 This is a schematic cross-sectional structural diagram of the electrical box assembly according to an embodiment of the present utility model;

[0022] Figure 3 This is a schematic structural diagram of the heat-conducting component according to an embodiment of the present utility model;

[0023] Figure 4 This is a schematic structural diagram of the heat-conducting component according to an embodiment of the present utility model;

[0024] Figure 5 This is a schematic structural diagram of a heat-conducting component according to another embodiment of the present invention;

[0025] Figure 6 This is a schematic structural diagram of a heat-conducting component according to another embodiment of the present invention;

[0026] Figure 7 This is a schematic structural diagram of an air conditioner according to an embodiment of the present utility model;

[0027] Figure 8 This is a schematic structural diagram of an electrical box assembly in related technologies.

[0028] Figure label:

[0029] Electrical box assembly 10;

[0030] Circuit board 100; First electronic component 110; Second electronic component 120;

[0031] Radiator 200; Heat sink 210;

[0032] Heat-conducting component 300; first crimping part 310; second crimping part 320; connecting part 330; mounting part 340; mounting plate 341; connecting plate 342;

[0033] Electrical box housing 400; heat dissipation wall 410;

[0034] First thermally conductive layer 510; Second thermally conductive layer 520;

[0035] Circuit board 610; heat sink 620; first crimping part 631; connecting part 632; second crimping part 633;

[0036] Air conditioner 20. Detailed Implementation

[0037] The following reference Figures 1 to 8 This invention describes an air conditioner and its electrical box assembly according to embodiments of the present invention. In this description, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature, that is, include one or more of that feature. In the description of the present invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified. When a feature "includes or contains" one or more of the features it encompasses, unless otherwise specifically described, this indicates that other features are not excluded and may be further included.

[0038] Unless otherwise expressly specified and limited, the terms "set," "install," "connect," "link," "fix," and "couple" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art should be able to understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0039] Furthermore, in the description of this embodiment, "above" or "below" the second feature can include direct contact between the first and second features, or it can include contact between the first and second features through another feature between them. That is, in the description of this embodiment, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," or "below" of the second feature can mean the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0040] In the description of this embodiment, the terms "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0041] The electrical box assembly 10 of this utility model is described below with reference to the accompanying drawings.

[0042] like Figures 1-7 As shown, the electrical box assembly 10 of the air conditioner 20 according to this embodiment includes an electrical box housing 400, a circuit board 100, a radiator 200, and a heat-conducting component 300. The circuit board 100 and the heat-conducting component 300 are disposed inside the electrical box housing 400.

[0043] A first electronic component 110 is disposed on one side of the circuit board 100, and a second electronic component 120 is disposed on the other side of the circuit board 100. A heat sink 200 is located on the other side of the circuit board 100, and the surface of the heat sink 200 facing the circuit board 100 is in contact with the second electronic component 120, so that when the second electronic component 120 generates heat during operation, the heat generated can be directly conducted to the heat sink 200 and dissipated by the heat sink 200. The circuit board 100 and the heat sink 200 are spaced apart to form an accommodating space. The first electronic component can be a high-heat-generating or high-power component, such as a capacitor, relay, or reactor.

[0044] The heat-conducting component 300 is made of a heat-conducting material, such as copper, aluminum nitride, or graphite. The thermal conductivity of the material in the heat-conducting component 300 is greater than or equal to 100 W / (m·K).

[0045] The heat-conducting component 300 includes a first crimping portion 310, a second crimping portion 320, and a connecting portion 330. The first crimping portion 310 contacts and abuts against the first electronic component 110 so that the heat generated by the first electronic component 110 during operation can be conducted to the first crimping portion 310. The second crimping portion 320 extends between the circuit board 100 and the heat sink 200, that is, at least a portion of the second crimping portion 320 is located in the accommodating space. The second crimping portion 320 contacts and abuts against the heat sink 200, and the connecting portion 330 connects the first crimping portion 310 and the second crimping portion 320. Thus, the heat generated by the first electronic component 110 is conducted sequentially through the first crimping portion 310, the connecting portion 330, and the second crimping portion 320 to the heat sink 200 for heat dissipation. Compared with heat dissipation of the first electronic component 110 by natural convection alone, the heat dissipation effect is better.

[0046] The connecting portion 330 is located on the outside of the circuit board 100, and the first crimping portion 310 and the second crimping portion 320 are both located on the side of the connecting portion 330 facing the circuit board 100.

[0047] like Figure 8 As shown, the electrical box assembly in the related art includes a circuit board 610, a heat sink 620, and a heat-conducting component. The lower side of the circuit board 610 abuts against the heat sink 620. The heat-conducting component includes a first crimping portion 631, a connecting portion 632, and a second crimping portion 633 connected in sequence. The connecting portion 632 is located behind the circuit board 610 and connects between the first crimping portion 631 and the second crimping portion 633. The first crimping portion 631 is located in front of the connecting portion 632 and abuts against an electronic component disposed on the upper side of the circuit board 610. The second crimping portion 633 is located behind the connecting portion 632 and abuts against the upper surface of the heat sink 620. In order for the heat sink 620 to contact the second pressing part 633, the outer contour of the heat sink 620 needs to be located outside the outer contour of the circuit board 610. This allows the rear end of the heat sink 620 to extend rearward relative to the circuit board 610 by a significant amount, enabling the second pressing part 633 to be mounted on the heat sink 620 and have a large contact area with it. This results in a larger overall size for the heat sink 620, occupying a larger space within the electrical box housing, and consequently, a larger overall size for the electrical box assembly.

[0048] Compared with related technologies, in the embodiment of the present invention, the first pressing part 310 and the second pressing part 320 of the heat-conducting part 300 of the air conditioner 20 are in contact with the first electronic component 110 and the radiator 200 respectively, so that the heat generated by the first electronic component 110 is conducted to the radiator 200 in sequence through the first pressing part 310, the connecting part 330 and the second pressing part 320. Both the first crimping portion 310 and the second crimping portion 320 are located on the side of the connecting portion 330 facing the circuit board 100. The second crimping portion 320 extends between the circuit board 100 and the radiator 200, so that the second crimping portion 320 is installed in the gap between the circuit board 100 and the radiator 200. This makes full use of the space between the circuit board 100 and the radiator 200. It is not necessary to make the outer contour of the radiator 200 outside the outer contour of the circuit board 100 to provide sufficient mounting area for the second crimping portion 320, thereby reducing the size of the radiator 200. This further reduces the overall size of the electrical box assembly 10 of the air conditioner 20 in this embodiment of the present invention, making the space occupied by the electrical box assembly 10 smaller.

[0049] In addition, the heat-conducting component 300 can also be configured as a heat pipe, gravity heat pipe, loop heat pipe, heat spreader, etc., which conducts the heat generated by the first electronic component 110 to the heat sink 200 through liquid flow or material phase change heat transfer.

[0050] In some embodiments, such as Figures 2-4 As shown, the circuit board 100, the first electronic component 110, and the heat-conducting component 300 are disposed within the electrical box housing 400. The heat-conducting component 300 further includes a mounting portion 340, which is connected to the second crimping portion 320 and / or the connecting portion 330. That is, the mounting portion 340 is connected to the second crimping portion 320; or, the mounting portion 340 is connected to the connecting portion 330. The mounting portion 340 is fixedly mounted on the electrical box housing 400. The mounting portion 340 can be fixed to the electrical box housing 400 by means of screws or bolts, or the mounting portion 340 can also be glued to the electrical box housing 400.

[0051] Understandably, since the second crimping part 320 extends into the accommodating space between the circuit board 100 and the heat sink 200, directly fixing the second crimping part 320 to the heat sink 200 would be difficult to implement. For example, if the second crimping part 320 is fixed to the heat sink 200 using screws, the small accommodating space between the circuit board 100 and the heat sink 200 limits the operability of the screws, making the screw-based fixing operation quite difficult.

[0052] An additional mounting portion 340 is provided on the second crimping portion 320 and / or the connecting portion 330, and the heat-conducting component 300 is fixed by directly fixing the mounting portion 340 to the electrical box housing 400. This not only makes the heat-conducting component 300 firmly installed, but also greatly reduces the installation difficulty of the heat-conducting component 300 and improves the installation efficiency of the electrical box assembly 10 of this utility model embodiment.

[0053] Specifically, such as Figure 2 As shown, the radiator 200 includes a heat dissipation plate 210, and the electrical box housing 400 includes a heat dissipation wall 410. The heat dissipation plate 210 is disposed between the second pressing part 320 and the heat dissipation wall 410. The mounting part 340 is disposed on the outside of the heat dissipation plate 210 and is fixedly mounted on the heat dissipation wall 410. The mounting part 340 includes a mounting plate 341 and a mounting plate 342. The mounting plate 341 is arranged parallel to the heat dissipation wall 410 and is mounted on the heat dissipation wall 410. The connecting plate 342 is perpendicular to the mounting plate 341. One end of the connecting plate 342 is connected to the second pressing part 320 or the connecting part 330, and the other end of the connecting plate 342 is connected to the mounting plate 341. In other words, the heat dissipation plate 210 and the mounting part 340 of the radiator 200 are both set on the heat dissipation wall 410 of the electrical box housing 400, which not only facilitates the installation and fixation of the radiator 200 and the heat conduction component 300, but also the mounting part 340 is located on the outside of the heat dissipation plate 210, so that the mounting part 340 will not interfere with the installation of the radiator 200.

[0054] Furthermore, the mounting plate 341 is located on the side of the connecting plate 342 away from the heat sink 200. This ensures that the mounting plate 341 does not interfere with the connection plate 342 and the connection portion 330's proximity to the heat sink 200 and circuit board 100, and reduces the distance between the connection portion 330 and the heat sink 200 and circuit board 100, thereby shortening the heat transfer distance between the first pressing portion 310 and the second pressing portion 320 and improving the heat transfer effect of the heat-conducting component 300.

[0055] In some embodiments, such as Figure 2 As shown, the area projected onto the circuit board 100 by the first crimping portion 310 is less than or equal to the area projected onto the circuit board 100 by the second crimping portion 320. Compared to the electrical box assembly 10 in the related art, since at least a portion of the second crimping portion 320 is installed within the accommodating space, and the accommodating space is relatively large, the second crimping portion 320 can have a larger size to contact the heat sink 200. That is, the area projected onto the circuit board 100 by the second crimping portion 320 is greater than or equal to the area projected onto the circuit board 100 by the first crimping portion 310, so that the heat conduction efficiency of the heat conductor 300 to the heat sink 200 is higher, thereby further improving the heat dissipation effect.

[0056] In some embodiments, such as Figure 2 and Figure 3As shown, the first pressing portion 310 contacts and abuts against the surface of the first electronic component 110 on the side away from the circuit board 100. The surface of the first pressing portion 310 facing the first electronic component 110 is shaped to match the surface of the first electronic component 110 on the side away from the circuit board 100. For example, the first electronic component 110 is a cuboid, and the first pressing portion 310 is a flat plate; or, the first electronic component 110 is a cylinder, and the first pressing portion 310 is an arc-shaped plate adapted to the outer peripheral surface of the first electronic component 110. By shaped to match the surface of the first pressing portion 310 with the surface of the first electronic component 110, the contact area between the first pressing portion 310 and the first electronic component 110 is increased, allowing the heat of the first electronic component 110 to be conducted to the first pressing portion 310 more efficiently, which is beneficial to improving the heat dissipation efficiency of the first electronic component 110.

[0057] Furthermore, such as Figure 2 and Figure 3 As shown, the first crimping portion 310 contacts and abuts against the surface of the first electronic component 110 on the side away from the circuit board 100. Both the first crimping portion 310 and the second crimping portion 320 are flat, with the first crimping portion 310 parallel to the second crimping portion 320; or, the first crimping portion 310 is an arched shape, and the second crimping portion 320 is flat, with the axial direction of the first crimping portion 310 parallel to the second crimping portion 320. That is, when the first crimping portion 310 is pressed onto the first electronic component 110, since the second crimping portion 320 is pressed onto the heat sink 200, and the axial direction of the second crimping portion 320 or the second crimping portion 320 is parallel to the first crimping portion 310, the second crimping portion 320 can support the first crimping portion 310, preventing the first crimping portion 310 from excessively pressing down on the first electronic component 110, thereby ensuring that the circuit board 100 will not bend or be damaged.

[0058] Optionally, the ratio of the distance between the first crimping portion 310 and the second crimping portion 320 to the distance between the circuit board 100 and the heat sink 200 is 0.9 to 1.1. Specifically, the ratio of the distance between the first crimping portion 310 and the second crimping portion 320 to the distance between the circuit board 100 and the heat sink 200 includes, but is not limited to, 0.9, 0.92, 0.93, 0.95, 0.98, or 1.1. This ensures that when the second crimping portion 320 contacts the heat sink 200, the first crimping portion 310 abuts against the first electronic component 110, reducing the gap between the first crimping portion 310 and the first electronic component 110, thereby improving heat conduction. It also prevents the first crimping portion 310 from excessively pressing down on the first electronic component 110.

[0059] In some embodiments, such as Figure 5 and Figure 6As shown, the connection between the first crimping part 310 and the connecting part 330 is rounded, and the connection between the second crimping part 320 and the connecting part 330 is also rounded, thereby further reducing the thermal resistance of the heat-conducting component 300 and improving the heat dissipation efficiency.

[0060] In some embodiments, such as Figure 2 and Figure 3 As shown, a first thermally conductive medium layer 510 is connected between the first pressing part 310 and the first electronic component 110; a second thermally conductive medium layer 520 is connected between the second pressing part 320 and the heat sink 200. The first and second thermally conductive medium layers 510 and 520 are thermally conductive interface materials, and can be potting compound, curing adhesive, thermally conductive gel, or thermally conductive pads. By respectively providing the first and second thermally conductive medium layers 510 between the first pressing part 310 and the first electronic component 110, and between the second pressing part 320 and the heat sink 200, the gaps between the first pressing part 310 and the first electronic component 110, and between the second pressing part 320 and the heat sink 200, are further reduced, decreasing the thermal resistance during heat conduction from the first electronic component 110 to the heat sink 300 and the heat sink 200, thus further improving heat dissipation efficiency.

[0061] like Figure 7 As shown, the air conditioner 20 of this embodiment includes the electrical box assembly 10 of any of the above embodiments. In this embodiment, the first pressing portion 310 and the second pressing portion 320 of the electrical box assembly 10 are both located on the side of the connecting portion 330 facing the circuit board 100. The second pressing portion 320 extends between the circuit board 100 and the radiator 200, allowing it to be installed in the gap between them. This fully utilizes the space between the circuit board 100 and the radiator 200, eliminating the need for the outer contour of the radiator 200 to be outside the outer contour of the circuit board 100 to provide sufficient mounting area for the second pressing portion 320. This reduces the size of the radiator 200, thereby lowering the overall size of the electrical box assembly 10 of the air conditioner 20 and minimizing the space occupied by the electrical box assembly 10.

[0062] Therefore, those skilled in the art should recognize that although many exemplary embodiments of the present invention have been shown and described in detail herein, many other variations or modifications conforming to the principles of the present invention can be directly determined or derived from the disclosure of the present invention without departing from the spirit and scope of the present invention. Therefore, the scope of the present invention should be understood and recognized as covering all such other variations or modifications.

Claims

1. An electrical box assembly for an air conditioner, characterized in that, include: A circuit board, wherein a first electronic component is disposed on one side of the circuit board; The heat sink is located on the other side of the circuit board; Thermally conductive components, made of thermally conductive materials, include: The first crimping part contacts and abuts against the first electronic component; The second pressing part extends between the circuit board and the heat sink, and contacts and abuts against the heat sink; A connecting portion is connected between the first crimping portion and the second crimping portion, and is located on the outside of the circuit board; both the first crimping portion and the second crimping portion are located on the side of the connecting portion facing the circuit board.

2. The electrical box assembly of the air conditioner according to claim 1, characterized in that, Also includes: An electrical box housing, wherein the circuit board, the first electronic component, and the heat-conducting component are disposed within the electrical box housing; The heat-conducting component further includes a mounting portion, which is connected to the second crimping portion and / or the connecting portion; the mounting portion is fixedly mounted on the electrical box housing.

3. The electrical box assembly of the air conditioner according to claim 2, characterized in that, The radiator includes a heat dissipation plate, the electrical box housing includes a heat dissipation wall, the heat dissipation plate is disposed between the second pressing part and the heat dissipation wall; the mounting part is disposed on the outside of the heat dissipation plate and is fixedly mounted on the heat dissipation wall; The mounting unit includes: The mounting plate is set parallel to the heat dissipation wall and installed on the heat dissipation wall; A connecting plate, perpendicular to the mounting plate, has one end connected to the second pressing part or connecting part, and the other end connected to the mounting plate.

4. The electrical box assembly of the air conditioner according to claim 3, characterized in that, The mounting plate is located on the side of the connecting plate away from the heat sink.

5. The electrical box assembly of the air conditioner according to claim 1, characterized in that, The area of ​​the first crimping part projected onto the circuit board is less than or equal to the area of ​​the second crimping part projected onto the circuit board.

6. The electrical box assembly of the air conditioner according to claim 1, characterized in that, The first crimping portion contacts and abuts against the surface of the first electronic component on the side away from the circuit board; The surface of the first pressing portion facing the first electronic component is configured to conformally match the surface of the first electronic component on the side away from the circuit board; and / or, A first thermally conductive medium layer is connected between the first crimping part and the first electronic component; a second thermally conductive medium layer is connected between the second crimping part and the heat sink.

7. The electrical box assembly of the air conditioner according to claim 6, characterized in that, The first crimping portion contacts and abuts against the surface of the first electronic component on the side away from the circuit board; Both the first crimping portion and the second crimping portion are flat, and the first crimping portion is parallel to the second crimping portion; or, The first pressing part is an arched arc shape, and the second pressing part is a flat plate shape. The axial direction of the first pressing part is parallel to that of the second pressing part.

8. The electrical box assembly of the air conditioner according to claim 7, characterized in that, The ratio of the distance between the first crimping portion and the second crimping portion to the distance between the circuit board and the heat sink is 0.9 to 1.

1.

9. The electrical box assembly of the air conditioner according to claim 7, characterized in that, The connection between the first crimping part and the connecting part is rounded; the connection between the second crimping part and the connecting part is also rounded.

10. An air conditioner, characterized in that, The electrical box assembly includes any one of claims 1-9.

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