Cooling fin with graphene coating

Abstract

The utility model relates to the field of heat dissipation, and provides a heat dissipation fin with a graphene coating, which comprises a heat dissipation plate, the top of the heat dissipation plate is welded with a telescopic structure, and the telescopic structure comprises an external fin, an internal fin, a first mounting block, a roller, a connecting shaft, a second mounting block, a spring, an external pipe, an internal pipe, a connecting block and a limiting plate. The bottom ends of the external fins are welded to the top face of the heat dissipation plate, the internal fins are arranged in the external fins, and first mounting blocks are welded to one sides of the internal fins. According to the utility model, the telescopic structure is arranged, the connecting block is pressed to be arranged outside the limiting plate, the second mounting block and the connecting block are pushed to drive the connecting shaft to slide inside the external fins, and the internal fins extend to the outside of the external fins, so that the heat dissipation area is enlarged, and the heat dissipation efficiency is improved. The device has the function of conveniently expanding or shrinking the heat dissipation area, and the applicability of the heat dissipation fin is improved.

Description

Technical Field

[0001] This utility model relates to the field of heat dissipation, and in particular to a heat dissipation fin with a graphene coating. Background Technology

[0002] Graphene-coated heat sinks are primarily used to improve heat dissipation efficiency and reduce equipment temperature. The core function of graphene-coated heat sinks is to enhance heat dissipation through their excellent thermal conductivity and heat radiation capabilities. Graphene is a two-dimensional material composed of a single layer of carbon atoms, possessing extremely high thermal conductivity, far exceeding that of traditional thermally conductive materials such as copper and aluminum. Graphene-coated heat sinks have wide applications in various fields, including consumer electronics, new energy vehicles, aerospace equipment, and information technology equipment.

[0003] However, existing heat sinks are usually of fixed size, which cannot be used for heat dissipation of various sizes of equipment, and they are not convenient to clean. Utility Model Content

[0004] The purpose of this invention is to provide a heat dissipation fin with a graphene coating to overcome the shortcomings of existing heat dissipation fins.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a heat dissipation fin with a graphene coating, including a heat dissipation plate;

[0006] The top of each heat sink is welded with a telescopic structure;

[0007] The telescopic structure includes external fins, internal fins, a first mounting block, a roller, a connecting shaft, a second mounting block, a spring, an external tube, an internal tube, a connecting block, and a limiting plate. The bottom ends of the external fins are all welded to the top surface of the heat sink. Internal fins are provided inside the external fins. A first mounting block is welded to one side of each internal fin. A roller is provided on the opposite side of the first mounting block. A connecting shaft passes through the inside of the roller. A second mounting block is fixed to one side of the connecting shaft. A spring is fixed to the top of the second mounting block. An external tube passes through the inside of the spring. An internal tube is provided inside the external tube. A connecting block is fixed to the top of the internal tube. A limiting plate is provided at the bottom of the connecting block.

[0008] A cleaning structure is installed on one side of the connecting block.

[0009] Preferably, the heat sink plate does not contact the built-in fins, does not contact the roller, and the top surface of the heat sink plate is fixedly connected to the bottom end of the limiting plate.

[0010] Preferably, the external fin is slidably connected to the internal fin, and the external fin is slidably connected to the connecting shaft.

[0011] Preferably, the second mounting block is fixedly connected with the external pipe, and the external pipe is slidably connected with the internal pipe.

[0012] Preferably, the spring is fixedly connected with the connecting block, and the connecting block is slidably connected with the limiting plate.

[0013] Preferably, the cleaning structure comprises a mounting plate, a first brush, a connecting rod and a second brush, one side of the mounting plate is mounted on the top of the connecting block, the bottom surface of the mounting plate is pasted with the first brush, the outside of the first brush on the bottom surface of the mounting plate is welded with the connecting rod, and the two sides of the connecting rod are pasted with the second brush.

[0014] Preferably, the first brush is provided in multiple groups, and the connecting rod is in a cylindrical shape.

[0015] Preferably, the connecting rod is provided in six groups, and the second brush is in a symmetrical distribution.

[0016] The heat dissipation fin with the graphene coating has the advantages that:

[0017] By setting the telescopic structure, the connecting block is pressed and placed outside the limiting plate, the second mounting block and the connecting block drive the connecting shaft to slide in the internal of the external fin, the internal fin is extended to the outside of the external fin, so that the heat dissipation area is expanded, the device has the function of expanding or reducing the heat dissipation area, and the applicability of the heat dissipation fin is improved.

[0018] By setting the cleaning structure, the connecting block drives the cleaning structure to move after being in contact with the external fin, the first brush and the second brush have good flexibility, dust on the outer wall of the external fin is cleaned in the moving process, the device has the function of conveniently cleaning the surface of the external fin, and the cleaning efficiency of the heat dissipation fin is improved. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a first cross-section three-dimensional schematic view of the utility model;

[0020] Figure 2 It is a first cross-section three-dimensional schematic view of the utility model; Figure 1 It is an enlarged schematic view of A;

[0021] Figure 3 It is a second cross-section three-dimensional schematic view of the utility model;

[0022] Figure 4 It is a three-dimensional enlarged schematic view of the connecting block of the utility model;

[0023] Figure 5 It is a top three-dimensional schematic view of the utility model;

[0024] Figure 6 is a bottom view three-dimensional schematic view of the present application;

[0025] Figure 7 is a bottom view three-dimensional schematic view of the present application; Figure 6 is an enlarged schematic view of B;

[0026] Figure 8 is a second mounting block three-dimensional enlarged schematic view of the present application.

[0027] The reference signs in the drawing are explained as follows: 1, heat dissipation plate; 2, telescopic structure; 201, external fin; 202, internal fin; 203, first mounting block; 204, roller; 205, connecting shaft; 206, second mounting block; 207, spring; 208, external pipe; 209, internal pipe; 210, connecting block; 211, limiting plate; 3, cleaning structure; 301, mounting plate; 302, first brush; 303, connecting rod; 304, second brush. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the present application.

[0029] Please refer to Figures 1-8 The present application provides a heat dissipation fin with graphene coating, which comprises a heat dissipation plate 1.

[0030] Refer to Figure 1As shown, the top of the heat dissipation plate 1 is welded with the telescopic structure 2, the telescopic structure 2 includes the external fin 201, the internal fin 202, the first mounting block 203, the roller 204, the connecting shaft 205, the second mounting block 206, the spring 207, the external pipe 208, the internal pipe 209, the connecting block 210 and the limiting plate 211, the bottom end of the external fin 201 is welded to the top surface of the heat dissipation plate 1, the internal part of the external fin 201 is provided with the internal fin 202, one side of the internal fin 202 is welded with the first mounting block 203, the opposite side of the first mounting block 203 is provided with the roller 204, the internal part of the roller 204 is penetrated with the connecting shaft 205, one side of the connecting shaft 205 is fixed with the second mounting block 206, the top end of the second mounting block 206 is fixed with the spring 207, the internal part of the spring 207 is penetrated with the external pipe 208, the internal part of the external pipe 208 is provided with the internal pipe 209, the top end of the internal pipe 209 is fixed with the connecting block 210, the bottom of the connecting block 210 is provided with the limiting plate 211, the heat dissipation plate 1 is not connected with the internal fin 202, the heat dissipation plate 1 is not connected with the roller 204, the top surface of the heat dissipation plate 1 is fixedly connected with the bottom end of the limiting plate 211, the external fin 201 is slidably connected with the internal fin 202, the external fin 201 is slidably connected with the connecting shaft 205, the second mounting block 206 is fixedly connected with the external pipe 208, the external pipe 208 is slidably connected with the internal pipe 209, the spring 207 is fixedly connected with the connecting block 210, and the connecting block 210 is slidably connected with the limiting plate 211.

[0031] The connecting block 210 is pressed to be placed outside the limiting plate 211, the second mounting block 206 and the connecting block 210 are pushed to drive the connecting shaft 205 to slide in the internal part of the external fin 201, so that the internal fin 202 is extended to the outside of the external fin 201, thereby expanding the heat dissipation area, and the device has the function of expanding or reducing the heat dissipation area.

[0032] Referring to Figure 2 As shown, the connecting block 210 is provided with the cleaning structure 3, the cleaning structure 3 includes the mounting plate 301, the first brush 302, the connecting rod 303 and the second brush 304, one side of the mounting plate 301 is mounted to the top of the connecting block 210, the bottom surface of the mounting plate 301 is pasted with the first brush 302, the external part of the first brush 302 on the bottom surface of the mounting plate 301 is welded with the connecting rod 303, and the two sides of the connecting rod 303 are pasted with the second brush 304, the first brush 302 is provided with multiple groups, the connecting rod 303 is in a cylindrical shape and is provided with six groups, and the second brush 304 is in a symmetrical distribution.

[0033] The connecting block 210 drives the cleaning structure 3 to move after it comes into contact with the external fin 201. The first brush 302 and the second brush 304 have good flexibility and clean the dust off the outer wall of the external fin 201 during the movement, thus enabling the device to easily clean the surface of the external fin 201.

[0034] In summary, as Figures 1-8 As shown, in use, the heat sink fins have through slots inside the heat sink 1. Bolts pass through these slots and are installed in the desired positions. Pressing the connecting block 210 causes the spring 207 to retract under pressure, allowing the internal tube 209 to slide inside the external tube 208. Simultaneously, the connecting block 210 is positioned outside the limiting plate 211. The connecting block 210 drives the mounting plate 301, which in turn causes the first brush 302 to contact the top of the external fin 201. The mounting plate 301, through the connecting rod 303, drives the second brush 304 to contact the outer wall of the external fin 201, pushing one side of the connecting block 210 and the second mounting block 206. This causes the connecting shaft 205 to slide inside the external fin 201, and the connecting shaft 205 drives the roller 204 to rotate. The connecting shaft 205, through the first mounting block 203, moves the internal fin 202, thereby causing the internal fin 202 to move. Extending to the outside of the external fin 201, the limiting plate 211 has through slots inside. When the internal fin 202 extends to the required position and the connecting block 210 is opposite to the through slot of the limiting plate 211, the connecting block 210 is released, the pressure of the spring 207 is released, and the connecting block 210 is driven into the through slot of the limiting plate 211, thereby stabilizing the extension and retraction position of the internal fin 202 and the external fin 201. At the same time, the cleaning structure 3 is moved away from the external fin 201 to prevent the cleaning structure 3 from being deformed by heat during the heat generation process of the external fin 201. The surfaces of the heat sink 1, the external fin 201 and the internal fin 202 are all coated with graphene. The heat source is conducted to the heat sink 1, the external fin 201 and the internal fin 202 through physical contact. The high thermal conductivity of graphene allows heat to be transferred faster, thereby improving heat dissipation efficiency. The graphene coating can also dissipate heat through thermal radiation. Although thermal radiation contributes little to air-cooled radiators, it plays a crucial role in some fanless devices that use "natural convection" for heat dissipation. Graphene has a much higher thermal conductivity than traditional materials, with a theoretical thermal conductivity of 5300W / mK, making it one of the best thermally conductive materials at room temperature.

[0035] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A heat dissipation fin with a graphene coating, comprising a heat dissipation plate (1); Characterized in that: The top of the heat dissipation plate (1) is welded with an elastic structure (2); The elastic structure (2) comprises an external fin (201), an internal fin (202), a first mounting block (203), a roller (204), a connecting shaft (205), a second mounting block (206), a spring (207), an external tube (208), an internal tube (209), a connecting block (210) and a limiting plate (211), the bottom end of the external fin (201) is welded to the top surface of the heat dissipation plate (1), the inside of the external fin (201) is provided with an internal fin (202), one side of the internal fin (202) is welded with a first mounting block (203), the opposite side of the first mounting block (203) is provided with a roller (204), the inside of the roller (204) penetrates a connecting shaft (205), one side of the connecting shaft (205) is fixed with a second mounting block (206), the top end of the second mounting block (206) is fixed with a spring (207), the inside of the spring (207) penetrates an external tube (208), the inside of the external tube (208) is provided with an internal tube (209), the top end of the internal tube (209) is fixed with a connecting block (210), the bottom of the connecting block (210) is provided with a limiting plate (211); One side of the connecting block (210) is installed with a cleaning structure (3).

2. The graphene-coated heat-dissipating fin according to claim 1, wherein: The heat dissipation plate (1) is not connected with the internal fin (202), the heat dissipation plate (1) is not connected with the roller (204), and the top surface of the heat dissipation plate (1) is fixedly connected with the bottom end of the limiting plate (211).

3. The graphene-coated heat dissipation fin of claim 1, wherein: The external fin (201) is slidably connected with the internal fin (202), and the external fin (201) is slidably connected with the connecting shaft (205).

4. The graphene-coated heat-dissipating fin of claim 1, wherein: The second mounting block (206) is fixedly connected with the external tube (208), and the external tube (208) is slidably connected with the internal tube (209).

5. The graphene-coated heat-dissipating fin of claim 1, wherein: The spring (207) is fixedly connected with the connecting block (210), and the connecting block (210) is slidably connected with the limiting plate (211).

6. The graphene-coated heat-dissipating fin of claim 1, wherein: The cleaning structure (3) comprises a mounting plate (301), a first brush (302), a connecting rod (303) and a second brush (304), one side of the mounting plate (301) is installed on the top of the connecting block (210), the bottom surface of the mounting plate (301) is pasted with the first brush (302), the outside of the first brush (302) on the bottom surface of the mounting plate (301) is welded with the connecting rod (303), and the two sides of the connecting rod (303) are pasted with the second brush (304).

7. A heat dissipating fin with graphene coating according to claim 6, characterized in that: The first brush (302) is provided in multiple groups, and the connecting rod (303) is in a cylindrical shape.

8. The graphene-coated heat-dissipating fin of claim 6, wherein: The connecting rod (303) is provided in six groups, and the second brush (304) is symmetrically distributed.

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