Power panel cooling fin

Abstract

The utility model relates to the technical field of radiating fins, and discloses a power panel radiating fin which comprises a radiating plate, an expansion plate is fixedly connected to the upper end of the radiating plate, an extension plate is fixedly connected to the side wall of the radiating plate, a radiating fin is fixedly connected to the upper end of the expansion plate, a connecting ring is fixedly connected to the side wall of the radiating plate, and the connecting ring is fixedly connected to the side wall of the radiating plate. A connecting groove is formed in the upper end face of the extension plate, the connecting ring is matched with the connecting groove, a fixing bolt is arranged in the connecting ring and the connecting groove at the edge in a penetrating mode, and a connecting bolt is arranged in the connecting ring and the connecting groove at the connecting position in a penetrating mode; according to the novel cooling fin applied to the power panel, through the arrangement of the connecting rings and the connecting grooves, the splicing effect can be achieved through the connecting rings and the connecting grooves, the better cooling effect can be achieved through the expansion plates fixed to the cooling plates, and fixing, mounting and dismounting are convenient and fast through the connecting bolts.

Description

Technical Field

[0001] The utility model relates to the technical field of heat sinks, in particular to a heat sink for a power board. Background Art

[0002] A heat sink is usually fixed on the power board, and the heat sink dissipates the heat from the power board through its own heat conduction. Traditional heat sinks dissipate heat by contacting the air in a toothed form.

[0003] However, the traditional heat sink has a single heat dissipation form, and the power boards are of different sizes. When making the heat sink, many molds and cutting times are required, which makes the labor cost too high. In addition, the traditional heat dissipation effect is poor, and the area of contact between the heat sink and the air is small, which cannot achieve good heat dissipation.

[0004] In order to solve the above problems, this application proposes a power board heat sink. Utility Model Content

[0005] In view of the deficiencies in the prior art, the present invention provides a power board heat sink to at least solve one of the problems raised in the background art.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a power board heat sink, comprising a heat sink, the upper end of the heat sink is fixedly connected to an extension plate, the side wall of the heat sink is fixedly connected to an extension plate, the upper end of the extension plate is fixedly connected to a heat sink, the side wall of the heat sink is fixedly connected to a connecting ring, the upper end face of the extension plate is provided with a connecting groove, the connecting ring is matched with the connecting groove, fixing bolts are passed through the edge of the connecting ring and the connecting groove, and connecting bolts are passed through the connecting ring and the connecting groove at the connection.

[0007] A further technical improvement of the present invention is that the side walls at both ends of the heat sink are provided with inclined surfaces, and the inclined surfaces are symmetrically arranged.

[0008] A further technical improvement of the present invention is that the heat sink is provided with perforations, and the number of the perforations is multiple and the perforations are arranged at equal intervals.

[0009] A further technical improvement of the present invention is that an extension piece is fixedly connected to the upper end of the extension plate, and the thickness of the extension piece is set to be equal to the thickness of the heat sink.

[0010] A further technical improvement of the present invention is that the perforations are arranged in a regular hexagonal shape.

[0011] A further technical improvement of the present invention is that the lower end surface of the connecting bolt is arranged flush with the lower end surface of the heat dissipation plate.

[0012] The embodiment of the utility model provides a heat sink for a power board, which has the following beneficial effects:

[0013] This new type is applied to the heat sink of the power board. By setting the connecting ring and the connecting groove, the splicing effect can be achieved through the connecting ring and the connecting groove. Moreover, the extension board fixed on the heat dissipation board can achieve a better heat dissipation effect, and the installation and disassembly are convenient and fast through the connecting bolts. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The drawings are used to provide a further understanding of the present utility model and constitute a part of the specification. They are used together with the embodiments of the present utility model to explain the present utility model, but do not constitute a limitation to the present utility model.

[0015] Figure 1 It is a schematic diagram of the overall structure of the present utility model;

[0016] Figure 2 It is a schematic diagram of the heat dissipation board, connecting ring and connecting groove structures of the present utility model;

[0017] Figure 3 is Figure 1 The enlarged structural schematic diagram at A in

[0018] In the figure: 1, heat dissipation board; 2, extension board; 3, extension board; 4, heat sink; 5, extension piece; 6, connecting bolt; 7, fixing bolt; 8, connecting ring; 9, connecting groove; 10, inclined surface; 11, perforation. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0020] Please refer to Figures 1-3 , a heat sink for a power board, including a heat dissipation board 1, an extension board 3 is fixedly connected to the upper end of the heat dissipation board 1, an extension board 2 is fixedly connected to the side wall of the heat dissipation board 1, a heat sink 4 is fixedly connected to the upper end of the extension board 3, a connecting ring 8 is fixedly connected to the side wall of the heat dissipation board 1, a connecting groove 9 is opened on the upper end surface of the extension board 2, the connecting ring 8 and the connecting groove 9 are arranged in a matching manner, a fixing bolt 7 is inserted through the edge connecting ring 8 and the connecting groove 9, and a connecting bolt 6 is inserted through the connecting ring 8 and the connecting groove 9 at the connection part.

[0021] Specific working principle and implementation method: The heat dissipation plate 1 is in contact with the power supply board to absorb heat, and the heat is transferred to the extension board 3 through the heat dissipation plate 1. The extension board 3 is trapezoidally arranged, increasing the area in contact with the air. A heat sink 4 is fixed on the extension board 3, and the heat sink 4 then dissipates the heat. The connecting ring 8 fixed at the outer end of the heat dissipation plate 1 matches the connecting groove 9 opened on the extension board 2. The connecting ring 8 is inserted into the connecting groove 9 and then fixedly connected by a connecting bolt 6. In this way, the overall number can continue to be changed, and then it can be adjusted and installed according to the size of the power supply board. After the overall size is determined, it is installed and fixed to the power supply board through a fixing bolt 7 on the outside. The advantage of this design is that the splicing effect can be achieved through the connecting ring 8 and the connecting groove 9, and the extension board 3 fixed on the heat dissipation plate 1 can achieve a better heat dissipation effect, and the installation and disassembly are convenient and fast through the fixing of the connecting bolt 6.

[0022] As Figure 3 shown, inclined surfaces 10 are provided on both side walls at the two ends of the heat sink 4. The inclined surfaces 10 are symmetrically arranged. By providing the inclined surfaces 10 on both side walls at the two ends of the heat sink 4, a better heat dissipation effect can be achieved compared with a right-angled surface.

[0023] As Figure 3 shown, through holes 11 are provided on the heat sink 4. The number of the through holes 11 is set to be multiple, and the spacing is equal. Through the through holes 11, the hot air inside can achieve a flowing effect, so that the heat sink 4 can dissipate heat better, and the multiple through holes 11 can make the air from top to bottom of the heat sink 4 flow.

[0024] As Figure 2 shown, an extension piece 5 is fixedly connected to the upper end of the extension board 2. The thickness of the extension piece 5 is equal to the thickness of the heat sink 4. The extension piece 5 increases the original heat dissipation area, and the extension piece 5 is located between two groups of heat sinks 4, which can make the flowing hot air in the middle achieve a dissipating effect. When the heat flows between the two groups of heat sinks 4, the hot air dissipated by the extension piece 5 is discharged to the outside, so as to achieve the effect of discharging heat from the inside to the outside.

[0025] As Figure 3 shown, the through holes 11 are in a regular hexagonal shape. The through holes 11 in a regular hexagonal shape can make the heat on the surfaces of six sides dissipate when the air flows, so as to achieve a better heat dissipation effect. And by setting the through holes 11, the overall mass can be reduced, and thus the pressing force on the power supply board is weakened.

[0026] As Figure 1 shown, the lower end surface of the connecting bolt 6 is flush with the lower end surface of the heat dissipation plate 1. The lower end surface of the connecting bolt 6 being flush with the lower end surface of the heat dissipation plate 1 is to facilitate avoiding excessive rotation of the connecting bolt 6 by the user during installation and prevent the connecting bolt 6 from piercing through the power supply board.

[0027] The above are only the preferred embodiments of the present utility model, and do not impose any form of limitation on the present utility model. Although the present utility model has been disclosed above with the preferred embodiments, it is not intended to limit the present utility model. Any person skilled in the art can make some changes or modifications to form equivalent embodiments by using the disclosed technical content within the scope of the technical solution of the present utility model. However, as long as it does not depart from the content of the technical solution of the present utility model, any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present utility model still fall within the scope of the technical solution of the present utility model.

Claims

1. A heat sink for a power supply board, comprising a heat dissipation plate (1), characterized in that, The upper end of the heat dissipation plate (1) is fixedly connected with an extension plate (3), the side wall of the heat dissipation plate (1) is fixedly connected with an extension plate (2), the upper end of the extension plate (3) is fixedly connected with a heat sink (4), the side wall of the heat dissipation plate (1) is fixedly connected with a connecting ring (8), a connecting groove (9) is formed in the upper end surface of the extension plate (2), the connecting ring (8) is arranged to match the connecting groove (9), a fixing bolt (7) is inserted through the edge of the connecting ring (8) and the connecting groove (9), and a connecting bolt (6) is inserted through the connecting ring (8) and the connecting groove (9) at the connection part.

2. The heat sink for a power supply board according to claim 1, wherein Bevel surfaces (10) are formed in the side walls at both ends of the heat sink (4), and the bevel surfaces (10) are symmetrically arranged.

3. A heat sink for a power supply board according to claim 1, characterized in that, Perforations (11) are formed in the heat sink (4), the number of the perforations (11) is set to be multiple, and the intervals are equal.

4. A heat sink for a power supply board according to claim 1, characterized in that, An extension piece (5) is fixedly connected to the upper end of the extension plate (2), and the thickness of the extension piece (5) is set to be equal to the thickness of the heat sink (4).

5. A heat sink for a power supply board according to claim 3, characterized in that, The perforations (11) are regular hexagons.

6. The heat sink for a power supply board according to claim 1, characterized in that, The lower end surface of the connecting bolt (6) is flush with the lower end surface of the heat dissipation plate (1).

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