Heat dissipation assembly and inverter

Abstract

The heat dissipation assembly comprises an installation plate, the installation plate comprises a plate body, the edge of the plate body is provided with a frame, the frame is located on the first side of the plate body in the thickness direction and extends along the outer edge of the plate body, and the plate body is provided with a first air opening; the air duct cylinder is located on the first side of the plate body in the thickness direction, and one axial end of the air duct cylinder is located on the inner side of the frame and connected with the mounting plate; and the fan is arranged in the air duct cylinder and connected with at least one of the air duct cylinder and the mounting plate, and the fan is arranged opposite to the first air opening. The heat dissipation assembly is high in heat dissipation efficiency and low in manufacturing cost.

Description

Technical Field

[0001] The utility model relates to the technical field of energy storage and inverters, in particular to a heat dissipation component and an inverter. Background Art

[0002] In the related art, since the components in specific high-temperature areas inside and outside the box of energy storage and inverter products need to be cooled, it is necessary to add a fan assembly with an air duct in front of the high-temperature components to carry away the heat flow through the cold channel. The existing cooling fan assembly has low heat dissipation efficiency and high cost. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model provides a heat dissipation component, which has high heat dissipation efficiency and low manufacturing cost.

[0004] Another object of the present invention is to provide an inverter having the above heat dissipation assembly.

[0005] According to the embodiment of the utility model, the heat dissipation component includes: a mounting plate, the mounting plate includes a plate body, the edge of the plate body is provided with a frame, the frame is located on the first side in the thickness direction of the plate body and extends along the outer edge of the plate body, and the plate body has a first air outlet; an air duct cylinder, the air duct cylinder is located on the first side in the thickness direction of the plate body, one axial end of the air duct cylinder is located on the inner side of the frame and is connected to the mounting plate; a fan, the fan is arranged in the air duct cylinder and is connected to at least one of the air duct cylinder and the mounting plate, and the fan is arranged opposite to the first air outlet.

[0006] According to the heat dissipation assembly of the embodiment of the utility model, a frame is set on the edge of the plate body, and an air duct tube is set on one side in the thickness direction of the plate body. One axial end of the air duct tube is connected to the mounting plate and is located on the inner side of the frame. This can reduce the space inside the air duct tube, speed up the air flow rate in the air duct tube, improve the heat dissipation efficiency of the heating element, and reduce the material usage of the air duct tube, thereby reducing costs.

[0007] In some embodiments of the present invention, the outer peripheral wall of the air duct tube is in contact with the inner wall surface of the frame; and / or the inner peripheral wall of the air duct tube is in contact with the outer peripheral wall of the fan.

[0008] In some embodiments of the utility model, along the axial direction of the air duct cylinder, the cross-sectional area of ​​the air duct cylinder remains unchanged; or, along the axial direction of the air duct cylinder and in the direction from the mounting plate to the air duct cylinder, the air duct cylinder sequentially includes a first cylinder section and a second cylinder section, the cross-sectional area of ​​the first cylinder section remains unchanged, the cross-sectional area of ​​the second cylinder section gradually decreases, and the fan is located in the first cylinder section.

[0009] In some embodiments of the utility model, the air duct tube has a connecting plate inside, the connecting plate is located at one end of the air duct tube close to the plate body, the connecting plate has a second air outlet opposite to and connected to the first air outlet, the fan is located on the side of the connecting plate away from the plate body, the fan, the connecting plate and the plate body are connected by a first fastener, and the first fastener is sequentially passed through the fan, the connecting plate and the plate body.

[0010] In some embodiments of the present invention, there are multiple first fasteners, and the multiple first fasteners are arranged at intervals along the circumferential direction of the fan.

[0011] In some embodiments of the present invention, the frame includes a plurality of sub-frames spaced apart along the length direction of the outer edge of the board body or the frame is an integral piece; and / or the mounting plate is an integral piece.

[0012] In some embodiments of the present utility model, the plate body is rectangular, the outer contour of the cross section of the air duct cylinder is rectangular, and the outer contour of the cross section of the fan is rectangular.

[0013] In some embodiments of the utility model, the edge of the plate body is provided with a fixing plate bent and extended toward the second side in the thickness direction of the plate body, and the fixing plate is used to fix the heat dissipation assembly, wherein the second side and the first side are opposite sides in the thickness direction of the plate body.

[0014] According to the inverter of the embodiment of the utility model, it includes: a box body; a heating element, wherein the heating element is arranged in the box body; the heat dissipation assembly is arranged adjacent to the heating element, the mounting plate is connected to the box body, and the end of the air duct tube facing away from the mounting plate opens toward the heating element.

[0015] According to the inverter of the embodiment of the utility model, a frame is set on the edge of the plate body, and an air duct tube is set on one side in the thickness direction of the plate body. One axial end of the air duct tube is connected to the mounting plate and is located on the inner side of the frame. This can reduce the space inside the air duct tube, speed up the air flow rate in the air duct tube, improve the heat dissipation efficiency of the heating element, and reduce the material usage of the air duct tube, thereby reducing costs.

[0016] In some embodiments of the present invention, the fixing plate of the mounting plate is connected to the box body via a second fastener.

[0017] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0019] Figure 1 is a three-dimensional diagram of a heat dissipation assembly according to an embodiment of the utility model;

[0020] Figure 2 is an exploded view of a heat dissipation assembly according to an embodiment of the utility model;

[0021] Figure 3 is a three-dimensional diagram of the heat dissipation assembly according to another embodiment of the utility model;

[0022] Figure 4 is an exploded view of the heat dissipation assembly according to another embodiment of the utility model;

[0023] Figure 5 is a three-dimensional diagram of a heat dissipation assembly according to another embodiment of the utility model;

[0024] Figure 6 is an exploded view of a heat dissipation assembly according to another embodiment of the utility model;

[0025] Figure 7 is a three-dimensional diagram of a heat dissipation assembly according to another embodiment of the utility model from another angle;

[0026] Figure 8 It is an exploded view from another angle of a heat dissipation assembly according to another embodiment of the utility model.

[0027] Reference numerals:

[0028] 100. Heat dissipation component;

[0029] 1. Mounting plate; 11. Plate body; 111. First air outlet; 12. Frame; 13. Fixing plate;

[0030] 2. air duct cylinder; 21. first cylinder section; 22. second cylinder section; 23. connecting plate; 231. second air outlet;

[0031] 3. Fan;

[0032] 4. Fastener; 41. First fastener; 42. Second fastener. DETAILED DESCRIPTION

[0033] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0034] The heat dissipation assembly 100 according to an embodiment of the present invention is described below with reference to the accompanying drawings.

[0035] like Figure 2 and Figure 4 As shown, the heat dissipation assembly 100 according to the embodiment of the utility model is used for an inverter, and the heat dissipation assembly 100 includes a mounting plate 1, an air duct cylinder 2 and a fan 3.

[0036] Specifically, if Figure 1-Figure 4 As shown, the mounting plate 1 includes a plate body 11 and a frame 12. The frame 12 is provided at the edge of the plate body 11, the frame 12 is located at the first side in the thickness direction of the plate body 11 and extends along the outer edge of the plate body 11, and the frame 12 can strengthen the structural strength of the mounting plate 1 and improve the supporting effect of the mounting plate 1.

[0037] In addition, the air duct tube 2 is located at the first side in the thickness direction of the plate body 11, and one axial end of the air duct tube 2 is located inside the frame 12. The frame 12 can limit the air duct tube 2, so that the position of the air duct tube 2 is accurately installed. In the related art, the air duct tube 2 is sleeved on the outside of the frame 12, the air duct space is relatively large, the wind flow rate is low, the heat dissipation efficiency is low, and the increase of the air duct tube 2 requires more materials, which increases the cost. In the present application, the air duct tube 2 is located inside the frame 12, and the air duct space inside the air duct tube 2 is smaller, which is more conducive to increasing the air flow rate, thereby improving the heat dissipation efficiency, and the air duct tube 2 requires less materials, which can reduce the production cost.

[0038] In addition, one axial end of the air duct tube 2 is connected to the mounting plate 1, so that the air duct tube 2 can be fixed. The air duct tube 2 can be fixed to the frame 12 on the mounting plate 1 by glue or connected by fasteners 4, or can be connected to the plate body 11. The connection method between the air duct tube 2 and the mounting plate 1 is not limited.

[0039] The fan 3 is arranged in the air duct cylinder 2 and connected to at least one of the air duct cylinder 2 and the mounting plate 1. It is understandable that the fan 3 can be connected only to the air duct cylinder 2, or only to the mounting plate 1, or connected to both the air duct cylinder 2 and the mounting plate 1. The plate body 11 has a first air port 111, and the fan 3 is arranged opposite to the first air port 111. The airflow on the side of the plate body 11 facing away from the fan 3 in the thickness direction can enter the fan 3 through the first air port 111, and then be discharged into the air duct cylinder 2, and finally be discharged from the end of the air duct cylinder 2 facing away from the mounting plate 1, so as to be blown to the heating element to achieve heat dissipation of the heating element.

[0040] According to the heat dissipation component 100 of the embodiment of the utility model, a frame 12 is set on the edge of the plate body 11, and an air duct tube 2 is set on one side in the thickness direction of the plate body 11. One axial end of the air duct tube 2 is connected to the mounting plate 1 and is located on the inner side of the frame 12. This can reduce the space inside the air duct tube 2, speed up the air flow rate in the air duct tube 2, improve the heat dissipation efficiency of the heating element, and reduce the material usage of the air duct tube 2, thereby reducing costs.

[0041] In some embodiments of the present invention, Figure 1 and Figure 5 As shown, the outer peripheral wall of the air duct tube 2 fits with the inner wall surface of the frame 12, and the frame 12 of the mounting plate 1 can limit the air duct tube 2, which is convenient for positioning and connecting the air duct tube 2 and the mounting plate 1, and can improve the assembly efficiency of the mounting plate 1 and the air duct tube 2.

[0042] In some embodiments of the present invention, Figure 1 and Figure 5 As shown, the inner peripheral wall of the air duct cylinder 2 fits with the outer peripheral wall of the fan 3, and the air duct space is reduced as much as possible. The smaller the air duct space, the more conducive it is to increase the air flow rate in the air duct, which is conducive to improving the air flow heat exchange efficiency. In addition, the fixing effect between the air duct cylinder 2 and the fan 3 can be improved.

[0043] In some embodiments of the present invention, Figure 5-Figure 8 As shown, along the axial direction of the air duct tube 2, the cross-sectional area of ​​the air duct tube 2 remains unchanged. Figure 5-8 In the example shown, the cross-section of the air duct tube 2 is rectangular along the axis of the air duct tube 2, and the cross-sectional area of ​​the air duct tube 2 remains unchanged. The air duct tube 2 has a regular shape and a simple structure, which is convenient for the production and processing of the air duct tube 2 and is conducive to the overall installation of the heat dissipation assembly 100.

[0044] In other embodiments of the present invention, Figure 1-Figure 4 As shown, along the axis direction of the air duct cylinder 2 and in the direction from the mounting plate 1 to the air duct cylinder 2, the air duct cylinder 2 includes a first cylinder section 21 and a second cylinder section 22 in sequence, the cross-sectional area of ​​the first cylinder section 21 remains unchanged, and the cross-sectional area of ​​the second cylinder section 22 gradually decreases, and the fan 3 is located in the first cylinder section 21. For example, Figure 1-Figure 4In the example shown, along the axial direction of the air duct cylinder 2, the cross-sectional shapes of the first barrel section 21 and the cross-sectional shapes of the second barrel section 22 are both rectangular, the cross-sectional area of ​​the first barrel section 21 remains unchanged, and the cross-sectional area of ​​the second barrel section 22 gradually decreases in the direction away from the first barrel section 21. In particular, along the axial direction of the air duct cylinder 2, the first barrel section 21 of the air duct cylinder 2 is slightly longer than the length dimension of the fan 3, or the first barrel section 21 of the air duct cylinder 2 is the same as the length dimension of the fan 3, and the first barrel section 21 of the air duct cylinder 2 fits tightly with the fan 3, thereby ensuring the amount of air inhaled by the fan 3 while minimizing the space of the air duct cylinder 2.

[0045] Along the axial direction of the air duct cylinder 2, the cross-sectional area of ​​the first cylinder section 21 remains unchanged, which facilitates the arrangement and installation of the fan 3. Figure 2 and Figure 4 As shown, the airflow enters the first barrel section 21 of the air duct cylinder 2 from the first air port 111 on the mounting plate 1, and after being guided and accelerated by the fan 3, it can directly enter the second barrel section 22 of the air duct cylinder 2. Along the axial direction of the air duct cylinder 2 and in the direction from the mounting plate 1 to the air duct cylinder 2, the cross-sectional area of ​​the second barrel section 22 gradually decreases, so that the air duct cylinder 2 is funnel-shaped as a whole. The airflow flows faster in the air duct space with a smaller cross-sectional area, so the closer the airflow is to the air outlet of the air duct cylinder 2 in the second barrel section 22, the faster the airflow speed is, and the higher the heat exchange efficiency of the airflow is, which can ensure that the heat exchange effect of the airflow flowing out of the air outlet of the air duct cylinder 2 is the best.

[0046] In some embodiments of the present invention, Figure 4 and Figure 8 As shown, the air duct cylinder 2 has a connecting plate 23, which is located at one end of the air duct cylinder 2 close to the plate body 11, and has a second air port 231 opposite to and connected to the first air port 111 on the connecting plate 23. The fan 3 is located on the side of the connecting plate 23 away from the plate body 11, and the first air port 111, the second air port 231 and the fan 3 are arranged opposite to and connected, so that the air flow can pass through the first air port 111, the second air port 231, and then pass through the fan 3 to enter the air duct cylinder 2. In addition, the first air port 111, the second air port 231 and the vents on the fan 3 are circular with the same or similar size, which can provide the heat dissipation component 100 with the largest effective air inlet area and ensure sufficient air intake.

[0047] In some embodiments of the present invention, Figure 3 and Figure 7 As shown, the fan 3, the connecting plate 23 and the plate body 11 are connected by the first fastener 414, and the first fastener 414 is sequentially passed through the fan 3, the connecting plate 23 and the plate body 11. This ensures that the fan 3, the connecting plate 23 and the plate body 11 are connected and fastened reliably, and facilitates overall installation and maintenance, which can save costs.

[0048] In addition, the connecting plate 23 can be formed by bending inward at one end of the air duct tube 2 close to the mounting plate 1. When the heat dissipation assembly 100 is assembled, before the connecting plate 23 is bent, the fan 3 can be placed in the air duct tube 2, and then the connecting plate 23 is bent, and the fan 3, the connecting plate 23 and the plate body 11 are connected by the first fastener 414.

[0049] In some embodiments of the present invention, Figure 2 and Figure 6 As shown, there are multiple first fasteners 414, and the multiple first fasteners 414 are arranged at intervals along the circumferential direction of the fan 3. This can increase the reliability of the connection between the fan 3, the connecting plate 23 and the plate body 11. Figure 3 and Figure 7 In the example shown, there are four first fasteners 414, which are respectively arranged at the four corners of the rectangular fan 3, the connecting plate 23 and the plate body 11. While ensuring that the fan 3, the connecting plate 23 and the plate body 11 are securely connected, the effective air inlet area of ​​the heat dissipation assembly 100 is not affected.

[0050] In some embodiments of the present invention, Figure 1 and Figure 5 As shown, the frame 12 includes a plurality of sub-frames 12 arranged at intervals along the length direction of the outer edge of the board body 11, or the frame 12 is an integral piece. It is understood that the frame 12 on the mounting board 1 can be as follows: Figure 1 and Figure 5 The multiple independent sub-frames 12 shown are specifically three, which are respectively arranged on the upper side and the left and right sides of the mounting plate 1. The sub-frames 12 have a simple structure and are easy to process, and can save a certain amount of material cost. The frame 12 on the mounting plate 1 can also be an integral part, which is conducive to improving production efficiency and can reduce or even avoid processing errors.

[0051] In some embodiments of the present invention, the mounting plate 1 is an integral piece, and the production method of the integral piece can reduce or even avoid processing errors and matching problems during assembly, thereby improving the accuracy and stability of the mounting plate 1. It can also save the assembly process between the plate body 11 and the frame 12, which is conducive to improving production efficiency.

[0052] In some embodiments of the present invention, Figure 4 and Figure 8As shown, the plate body 11 is rectangular, the outer contour of the cross section of the air duct cylinder 2 is rectangular, and the outer contour of the cross section of the fan 3 is rectangular. As a result, the outer peripheral wall of the air duct cylinder 2 can be closely fitted with the inner peripheral wall of the frame 12 on the plate body 11, which facilitates the positioning and installation of the air duct cylinder 2 and the mounting plate 1, simplifies the installation process, and improves the assembly efficiency. At the same time, it is also convenient for the inner peripheral wall of the air duct cylinder 2 to be closely fitted with the outer peripheral wall of the fan 3, which can minimize the volume of the air duct, facilitate the improvement of the air circulation rate in the air duct cylinder 2, and improve the heat exchange efficiency of the heat dissipation component 100.

[0053] In some embodiments of the present invention, Figure 1 and Figure 5 As shown, the edge of the plate body 11 is provided with a fixing plate 13 bent and extended toward the second side in the thickness direction of the plate body 11, and the fixing plate 13 is used to fix the heat dissipation assembly 100, wherein the second side and the first side are two sides opposite to each other in the thickness direction of the plate body 11. The fixing plate 13 is arranged on the side of the edge of the plate body 11 away from the air duct cylinder 2, so as to prevent the air duct cylinder 2 from interfering with the fixing of the heat dissipation assembly 100, and at the same time, it can also prevent the plate body from being blocked from being connected and fixed with the air duct cylinder 2 and the fan 3.

[0054] The inverter according to the embodiment of the present utility model is described below.

[0055] The inverter according to the embodiment of the utility model includes a box, a heating element and the above-mentioned heat dissipation assembly 100, the heating element is arranged in the box, the above-mentioned heat dissipation assembly 100 is arranged adjacent to the heating element, the mounting plate 1 is connected to the box, specifically, the fixing plate 13 is connected to the bottom wall of the box or connected and fixed to other mounting surfaces in the box, and the relative position of the heat dissipation assembly 100 and the heating element can be fixed. The end of the air duct tube 2 that is away from the mounting plate 1 is opened toward the heating element, and the end of the air duct tube 2 that is away from the mounting plate 1 is opened as an air outlet, which can ensure that the airflow in the air duct tube 2 flows to the heating element and takes away the heat flow, thereby ensuring that the heat dissipation assembly 100 effectively exchanges heat with the heating element.

[0056] According to the inverter of the embodiment of the utility model, a frame 12 is set on the edge of the plate body 11 of the above-mentioned mounting plate 1, and an air duct tube 2 is set on one side in the thickness direction of the plate body 11, and one axial end of the air duct tube 2 is connected to the mounting plate 1 and is located on the inner side of the frame 12. This can reduce the space inside the air duct tube 2, speed up the air flow rate in the air duct tube 2, improve the heat dissipation efficiency of the heating element, and reduce the material usage of the air duct tube 2, thereby reducing costs.

[0057] In some embodiments of the present invention, the fixing plate 13 of the mounting plate 1 is connected to the box body via a second fastener 424, which can ensure that the mounting plate 1 is securely connected to the box body.

[0058] In addition, the second fasteners 424 are multiple and spaced apart, thereby ensuring the reliability of the connection between the mounting plate 1 and the box body, wherein the mounting plate 1 can be connected to the bottom wall of the box body, or to the side wall or top wall of the box body, without limitation here.

[0059] In the description of the present utility model, it is necessary to understand that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, features defined as "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0060] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" 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 or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0061] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0062] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A heat dissipation component, characterized in that: include: A mounting plate, the mounting plate comprising a plate body, an edge of the plate body being provided with a frame, the frame being located on a first side in a thickness direction of the plate body and extending along an outer edge of the plate body, and the plate body being provided with a first air outlet; An air duct tube, the air duct tube is located at the first side in the thickness direction of the plate body, and one axial end of the air duct tube is located inside the frame and connected to the mounting plate; A fan is disposed in the air duct tube and connected to at least one of the air duct tube and the mounting plate, and the fan is disposed opposite to the first air outlet.

2. The heat dissipation assembly according to claim 1, characterized in that: The outer peripheral wall of the air duct tube is in contact with the inner wall surface of the frame; And / or, the inner peripheral wall of the air duct tube is in contact with the outer peripheral wall of the fan.

3. The heat dissipation assembly according to claim 1, characterized in that: Along the axial direction of the air duct tube, the cross-sectional area of ​​the air duct tube remains unchanged; Or, along the axial direction of the air duct cylinder and in the direction from the mounting plate to the air duct cylinder, the air duct cylinder sequentially includes a first cylinder section and a second cylinder section, the cross-sectional area of ​​the first cylinder section remains unchanged, the cross-sectional area of ​​the second cylinder section gradually decreases, and the fan is located in the first cylinder section.

4. The heat dissipation assembly according to claim 1, characterized in that: The air duct tube has a connecting plate in it, the connecting plate is located at one end of the air duct tube close to the plate body, and the connecting plate has a second air outlet opposite to and connected to the first air outlet. The fan is located on a side of the connecting plate away from the plate body. The fan, the connecting plate and the plate body are connected by a first fastener, and the first fastener passes through the fan, the connecting plate and the plate body in sequence.

5. The heat dissipation assembly according to claim 4, characterized in that: There are a plurality of the first fasteners, and the plurality of the first fasteners are arranged at intervals along the circumferential direction of the fan.

6. The heat dissipation assembly according to claim 1, characterized in that: The frame includes a plurality of sub-frames arranged at intervals along the length direction of the outer edge of the board body, or the frame is an integral piece; And / or, the mounting plate is a one-piece piece.

7. The heat dissipation assembly according to claim 1, characterized in that: The plate body is rectangular, the outer contour of the cross section of the air duct tube is rectangular, and the outer contour of the cross section of the fan is rectangular.

8. The heat dissipation assembly according to claim 1, characterized in that: The edge of the board body is provided with a fixing plate bent and extended toward the second side in the thickness direction of the board body, and the fixing plate is used to fix the heat dissipation component, wherein the second side and the first side are two opposite sides in the thickness direction of the board body.

9. An inverter, characterized in that: include: Box; A heating element, the heating element being arranged in the box; According to any one of claims 1-8, the heat dissipation assembly is arranged adjacent to the heating element, the mounting plate is connected to the box body, and the end of the air duct tube facing away from the mounting plate opens toward the heating element.

10. The inverter according to claim 9, characterized in that: The fixing plate of the mounting plate is connected to the box body via a second fastener.

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