Novel heat dissipation structure of power device

Abstract

The utility model discloses a novel heat dissipation structure of a power device, which is a U-shaped sheet metal part formed by cutting and bending aluminum alloy, the surface 1 is used for fixing at most three transformers, the surface 2 is connected with a circuit board for heat dissipation, and the surface 3 is used for fixing the circuit board. According to the structure, the transformer and the circuit board can be made into a whole, circuit board fault damage caused by heating when the transformer works is avoided, meanwhile, the size of an external shell is reduced, and space is reasonably utilized.

Description

Technical Field

[0001] This utility model relates to heat dissipation structures, and in particular to a novel heat dissipation structure for power devices. Background Technology

[0002] In addition to the general properties of aluminum, aluminum alloys also possess specific alloying characteristics due to variations in the types and amounts of alloying elements added. The density of aluminum alloys ranges from 2.63 to 2.85 g / cm³. 3 It has high strength, with a specific strength close to that of high alloy steel and a specific stiffness exceeding that of steel. It also has good casting and plastic processing properties, good electrical and thermal conductivity, good corrosion resistance and weldability. It can be used as a structural material and has a wide range of applications in aerospace, aviation, transportation, construction, electromechanical, light chemical and daily necessities. Utility Model Content

[0003] This utility model discloses a novel heat dissipation structure for a power device, comprising:

[0004] The structure is a U-shaped sheet metal part made of aluminum alloy through cutting and bending; the sheet metal part has countersunk holes and threaded holes for fixing the transformer and connecting it to the circuit board for heat dissipation, wherein the countersunk holes are located on the top surface of the sheet metal part and the threaded holes are located on the bottom surface of the sheet metal part; a gap is left between the transformer and the bottom surface of the sheet metal part to maintain heat dissipation space; square holes on the side of the sheet metal part provide heat dissipation conditions.

[0005] Furthermore, the countersunk hole on the sheet metal part is located on the first surface (1), which is horizontal to the ground and is used to fix the transformer. Up to three transformers can be fixed. After the transformer is fixed, there is a certain gap between it and the second surface (2) to maintain good heat dissipation space.

[0006] Furthermore, the threaded hole on the sheet metal part is located on the second surface (2), which is opposite to the first surface (1) and connected to the surface of the circuit board device for heat dissipation.

[0007] Furthermore, the third surface (3) of the sheet metal part is located on the side of the first surface (1) and the second surface (2) and is perpendicularly connected to the first surface (1) and the second surface (2) to form a U-shaped sheet metal part; the third surface (3) has a square hole with a width of 12mm to provide heat dissipation conditions, and has a fixing hole to connect with another circuit board.

[0008] Furthermore, the sheet metal part is made of aluminum alloy, which provides sufficient hardness to support the weight of the transformer. Aluminum alloy is also inexpensive, lightweight, and its heat dissipation performance is second only to silver and copper.

[0009] Furthermore, the sheet metal parts mechanically connect the transformer and the circuit board, facilitating disassembly and maintenance. The connection gaps and heat dissipation openings prevent the heat generated by the transformer during operation from causing circuit board failure or damage.

[0010] The beneficial effects of this utility model through the above solution are as follows:

[0011] 1. Integrate the transformer and circuit board into a single unit, and prevent the circuit board from malfunctioning or being damaged due to the heat generated by the transformer during operation;

[0012] 2. Reduce the size of the outer casing and make reasonable use of space. Attached Figure Description

[0013] Figure 1 This is a dimensional diagram of the heat dissipation structure of a novel power device according to this utility model.

[0014] Figure 2 This is a physical diagram of the heat dissipation structure of a novel power device according to this utility model.

[0015] Legend:

[0016] ①、②、③:U-shaped sheet metal part, first side (1), second side (2), third side (3)

[0017] ④: Transformer

[0018] ⑤: Heat sink

[0019] ⑥: Temperature acquisition line Detailed Implementation

[0020] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit its scope.

[0021] like Figure 1 The diagram shows a heat dissipation structure for a novel power device. The structure is a U-shaped sheet metal part formed by cutting and bending aluminum alloy. The sheet metal part has countersunk holes and threaded holes for fixing the transformer and connecting it to the circuit board for heat dissipation. The countersunk holes are located on the top surface of the sheet metal part, and the threaded holes are located on the bottom surface. A gap is left between the transformer and the bottom surface of the sheet metal part to maintain heat dissipation space. Square holes on the side of the sheet metal part provide heat dissipation conditions. The first side (1) and second side (2) of the sheet metal part are shown below. Figure 2 Components ① and ② are shown.

[0022] Furthermore, the countersunk hole on the sheet metal part is located on the first surface (1), which is horizontal to the ground and is used to fix the transformer. Up to three transformers can be fixed. Figure 2As shown in component ④, after the transformer is fixed, there is a certain gap between it and the second surface (2) to maintain good heat dissipation space.

[0023] Furthermore, the threaded hole on the third surface (3) of the sheet metal part is located on the second surface (2), the second surface (2) is opposite to the first surface (1) and is connected to the surface of the circuit board device for heat dissipation; the third surface (3) of the sheet metal part is as follows Figure 2 Component ③ is shown.

[0024] Furthermore, the heat sink is located on the side of the sheet metal part on the first surface (1) and the second surface (2), and is perpendicularly connected to the first surface (1) and the second surface (2) to form a U-shaped sheet metal part; the third surface (3) has a square hole with a width of 12mm to provide heat dissipation conditions, and has fixing holes to connect with other circuit boards; the heat sink is as follows Figure 2 As shown in component ⑤.

[0025] Furthermore, the sheet metal part is made of aluminum alloy, which provides sufficient hardness to support the weight of the transformer. Aluminum alloy is also inexpensive, lightweight, and its heat dissipation performance is second only to silver and copper.

[0026] Furthermore, the sheet metal parts mechanically connect the transformer and the circuit board, facilitating disassembly and maintenance. The connection gaps and heat dissipation openings prevent the heat generated by the transformer during operation from causing circuit board failure or damage.

Claims

1. A novel heat dissipation structure for a power device, characterized in that: The structure is a U-shaped sheet metal part made of aluminum alloy through cutting and bending; the sheet metal part has countersunk holes and threaded holes for fixing the transformer and connecting it to the circuit board for heat dissipation, wherein the countersunk holes are located on the top surface of the sheet metal part and the threaded holes are located on the bottom surface of the sheet metal part; a gap is left between the transformer and the bottom surface of the sheet metal part to maintain heat dissipation space; square holes on the side of the sheet metal part provide heat dissipation conditions.

2. The heat dissipation structure of the novel power device according to claim 1, characterized in that, The countersunk hole on the sheet metal part is located on the first surface (1), which is horizontal to the ground and is used to fix the transformer. Up to three transformers can be fixed. After the transformer is fixed, there is a certain gap between it and the second surface (2) to maintain good heat dissipation space.

3. The heat dissipation structure of a novel power device according to claim 1, characterized in that, The threaded hole on the sheet metal part is located on the second surface (2), which is opposite to the first surface (1) and connected to the surface of the circuit board device for heat dissipation.

4. The heat dissipation structure of a novel power device according to claim 1, characterized in that, The third side (3) of the sheet metal part is located on the side of the first side (1) and the second side (2) and is perpendicularly connected to the first side (1) and the second side (2) to form a U-shaped sheet metal part; the third side (3) has a square hole with a width of 12mm to provide heat dissipation conditions, and has a fixing hole to connect with another circuit board.

5. The heat dissipation structure of a novel power device according to claim 1, characterized in that, The sheet metal parts are made of aluminum alloy, which provides sufficient hardness to support the weight of the transformer. Aluminum alloy is also inexpensive, lightweight, and its heat dissipation performance is second only to silver and copper.

6. The heat dissipation structure of a novel power device according to claim 1, characterized in that, The sheet metal parts mechanically connect the transformer and the circuit board, facilitating disassembly and maintenance. The connection gaps and heat dissipation openings prevent the heat generated by the transformer during operation from causing circuit board failure or damage.

Images