Graphite heat conduction radiating fin

Abstract

The utility model relates to the technical field of radiating fins, in particular to a graphite heat conduction radiating fin which comprises a graphite sheet, a heat conduction plate is fixedly connected to the surface of the graphite sheet, the heat conduction plate is a copper alloy plate, an edge covering strip is fixedly connected to the surface of the graphite sheet, and the edge covering strip is fixedly connected with the heat conduction plate. The surface of the graphite flake is coated with a silicone grease coating, the silicone grease coating is located on the inner wall of the edge wrapping strip, a release film is bonded to the side, away from the graphite flake, of the silicone grease coating, a pull film is fixedly connected to the surface of the release film, a positioning groove is formed in the surface of the edge wrapping strip, and a positioning block is fixedly connected to the surface of the release film. According to the utility model, after the silicone grease coating is in contact with a heat source of equipment, under the matching of the edge covering strip and the heat conducting plate, the graphite flake can be sealed, and the condition that the graphite flake is in contact with air in the use process is prevented, so that the condition that the graphite flake is affected with damp is prevented, and the normal heat conduction of the graphite flake is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of heat sinks, in particular to a graphite heat-conducting heat sink. Background Art

[0002] Graphite heat sink is a material used for heat dissipation in electronic equipment. It is usually made of graphite and has good thermal conductivity. It is widely used in electronic equipment, LED lighting, semiconductor devices and other fields to help reduce the operating temperature of the equipment and extend its service life.

[0003] The above and prior art technologies have the following defects: when the graphite heat sink is exposed to the natural environment, since the natural air contains a certain amount of water vapor, the graphite heat sink easily absorbs water and becomes damp, resulting in a decrease in the thermal conductivity of the graphite heat sink, thereby affecting the normal operation of the graphite heat sink.

[0004] Therefore, a graphite heat-conducting heat sink is proposed. Utility Model Content

[0005] The utility model aims to solve the problem that the graphite heat sink is easy to absorb water and get damp, which leads to the decrease of the thermal conductivity of the graphite heat sink, and proposes a graphite heat-conducting heat sink.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a graphite heat-conducting heat sink, comprising a graphite sheet, a heat-conducting plate is fixedly connected to the surface of the graphite sheet, the heat-conducting plate is a copper alloy plate, a edging strip is fixedly connected to the surface of the graphite sheet, the edging strip is fixedly connected to the heat-conducting plate, the surface of the graphite sheet is coated with a silicone grease coating, and the silicone grease coating is located on the inner wall of the edging strip.

[0007] The effect achieved by the above components is: after the silicone grease coating comes into contact with the heat source of the equipment, with the cooperation of the edging strip and the heat conduction plate, the graphite sheet can be sealed to prevent the graphite sheet from contacting the air during use, thereby preventing the graphite sheet from getting damp and ensuring that the graphite sheet can conduct heat normally.

[0008] Preferably, a release film is bonded to a side of the silicone grease coating away from the graphite sheet.

[0009] The effect achieved by the above components is that the release film can prevent the silicone grease coating from failing before the graphite sheet is used.

[0010] Preferably, a pulling film is fixedly connected to the surface of the release film.

[0011] The effect achieved by the above components is that the release film can be easily peeled off by pulling the film.

[0012] Preferably, a positioning groove is provided on the surface of the edging strip, a positioning block is fixedly connected to the surface of the release film, the positioning block is snap-connected with the positioning groove, and the release film is slidably connected with the edging strip.

[0013] The effect achieved by the above components is that the positioning groove and the positioning block cooperate to position the release film when the release film is pasted.

[0014] Preferably, a plurality of fins are fixedly connected to the surface of the heat conducting plate, and the fins are aluminum alloy sheets.

[0015] The effects achieved by the above components are: the fins made of aluminum alloy can increase the contact area between the heat conducting plate and the air, thereby improving the heat dissipation effect of the heat conducting plate.

[0016] Preferably, the surfaces of several of the fins are covered with protective covers, and the protective covers are rubber covers.

[0017] The effect achieved by the above components is that when the protective sleeve is put on the surface of the fin, the protective sleeve made of rubber material can prevent the fin from being squeezed and deformed, thereby affecting the use.

[0018] Preferably, a plurality of reinforcing wires are provided in the protective sleeve, and the reinforcing wires are nylon fiber wires.

[0019] The effect achieved by the above components is that the reinforcing wire can prevent the protective sleeve from being broken due to being squeezed by adjacent fins, resulting in a situation where part of the protective sleeve remains between adjacent fins.

[0020] Compared with the prior art, the advantages and positive effects of the utility model are:

[0021] In the utility model, after the silicone grease coating is brought into contact with the heat source of the equipment, the sealing of the graphite sheet can be achieved with the cooperation of the edge strip and the heat conduction plate, thereby preventing the graphite sheet from contacting the air during use, thereby preventing the graphite sheet from getting damp, and ensuring that the graphite sheet can conduct heat normally. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0023] Figure 2 This is a schematic diagram of the split structure of the edge strip of the utility model;

[0024] Figure 3 It is a schematic diagram of the split structure of the graphite sheet of the utility model;

[0025] Figure 4 It is a schematic diagram of the cross-sectional structure of the protective cover of the utility model.

[0026] Legend: 1. Graphite sheet; 2. Heat conduction plate; 3. Edge strip; 4. Silicone grease coating; 5. Release film; 6. Pull film; 7. Positioning block; 8. Positioning groove; 9. Fin; 10. Protective cover; 11. Reinforcement wire. DETAILED DESCRIPTION

[0027] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0028] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure.

[0029] like Figures 1 - 4 As shown, the utility model provides a graphite heat-conducting heat sink, including a graphite sheet 1, a heat-conducting plate 2 is fixedly connected to the surface of the graphite sheet 1, and the heat-conducting plate 2 is a copper alloy plate. A edging strip 3 is fixedly connected to the surface of the graphite sheet 1, and the edging strip 3 is fixedly connected to the heat-conducting plate 2. The surface of the graphite sheet 1 is coated with a silicone grease coating 4, and the silicone grease coating 4 is located on the inner wall of the edging strip 3. After the silicone grease coating 4 is in contact with the heat source of the equipment, with the cooperation of the edging strip 3 and the heat-conducting plate 2, the graphite sheet 1 can be sealed to prevent the graphite sheet 1 from contacting the air during use, thereby preventing the graphite sheet 1 from getting damp and ensuring that the graphite sheet 1 can conduct heat normally. A release film 5 is adhered to the side of the silicone grease coating 4 away from the graphite sheet 1, and the release film 5 can prevent the silicone grease coating 4 from failing before the graphite sheet 1 is used. A pulling film 6 is fixedly connected to the surface of the release film 5, and the release film 5 can be easily peeled off with the help of the pulling film 6.

[0030] like Figures 2 - 4 As shown, a positioning groove 8 is provided on the surface of the edging strip 3, and a positioning block 7 is fixedly connected to the surface of the release film 5. The positioning block 7 is engaged with the positioning groove 8, and the release film 5 is slidably connected to the edging strip 3. The positioning groove 8 cooperates with the positioning block 7 to position the release film 5 when the release film 5 is pasted. A plurality of fins 9 are fixedly connected to the surface of the heat conducting plate 2. The fins 9 are aluminum alloy sheets. The fins 9 made of aluminum alloy can increase the contact area between the heat conducting plate 2 and the air, thereby improving the heat dissipation effect of the heat conducting plate 2. A plurality of fins 9 are covered with protective covers 10, and the protective covers 10 are rubber covers. When the protective covers 10 are covered on the surface of the fins 9, the protective covers 10 made of rubber can prevent the fins 9 from being squeezed and deformed, thereby affecting the use.

[0031] Preferably, a plurality of reinforcing wires 11 are inserted into the protective sleeve 10, and the reinforcing wires 11 are nylon fiber wires.

[0032] The effects achieved by the above components are as follows: The reinforcing wire 11 can prevent the protective sleeve 10 from breaking due to the extrusion of adjacent fins 9, preventing the situation where part of the protective sleeve 10 remains between adjacent fins 9.

[0033] The overall working principle is as follows: When using the graphite sheet 1, the release film 5 is peeled off by means of the pulling film 6. The release film 5 can prevent the silicone grease coating 4 from failing before using the graphite sheet 1. The positioning groove 8 and the positioning block 7 can cooperate to position the release film 5 when pasting the release film 5. Then, the silicone grease coating 4 is brought into contact with the heat source of the device. With the cooperation of the edge strip 3 and the heat conducting plate 2, the sealing of the graphite sheet 1 can be achieved, preventing the graphite sheet 1 from contacting air during use, thereby preventing the graphite sheet 1 from getting damp and ensuring that the graphite sheet 1 can conduct heat normally. The heat conducting plate 2 made of copper alloy can absorb the heat in the graphite sheet 1 and can also improve the anti-bending strength of the graphite sheet 1. The fins 9 made of aluminum alloy can increase the contact area between the heat conducting plate 2 and the air, thereby improving the heat dissipation effect of the heat conducting plate 2. When the protective sleeve 10 is sleeved on the surface of the fins 9, the rubber protective sleeve 10 can prevent the fins 9 from being extruded and deformed, affecting the use. When the protective sleeve 10 is removed, the reinforcing wire 11 can prevent the protective sleeve 10 from breaking due to the extrusion of adjacent fins 9, preventing the situation where part of the protective sleeve 10 remains between adjacent fins 9.

[0034] The above is only a preferred embodiment of the present invention, and it is not a limitation to the present invention in other forms. Any person skilled in the art may use the disclosed technical content to make changes or modifications into equivalent embodiments with equivalent changes and apply them to other fields. However, as long as it does not depart from the technical solution content of the present invention, any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present invention still fall within the protection scope of the technical solution of the present invention.

Claims

1. A graphite heat-conducting heat sink, comprising a graphite sheet (1), characterized in that: The surface of the graphite sheet (1) is fixedly connected to a heat conducting plate (2), the heat conducting plate (2) is a copper alloy plate, the surface of the graphite sheet (1) is fixedly connected to an edge strip (3), the edge strip (3) is fixedly connected to the heat conducting plate (2), the surface of the graphite sheet (1) is coated with a silicone grease coating (4), and the silicone grease coating (4) is located on the inner wall of the edge strip (3).

2. The graphite heat-conducting heat sink according to claim 1, characterized in that: A release film (5) is bonded to the side of the silicone grease coating (4) away from the graphite sheet (1).

3. The graphite heat-conducting heat sink according to claim 2, characterized in that: A pulling film (6) is fixedly connected to the surface of the release film (5).

4. The graphite heat-conducting heat sink according to claim 2, characterized in that: A positioning groove (8) is provided on the surface of the edging strip (3), a positioning block (7) is fixedly connected to the surface of the release film (5), the positioning block (7) is snap-connected to the positioning groove (8), and the release film (5) is slidably connected to the edging strip (3).

5. The graphite heat-conducting heat sink according to claim 1, characterized in that: A plurality of fins (9) are fixedly connected to the surface of the heat conducting plate (2), and the fins (9) are aluminum alloy sheets.

6. The graphite heat-conducting heat sink according to claim 5, characterized in that: The surfaces of a plurality of the fins (9) are covered with protective sleeves (10), and the protective sleeves (10) are rubber sleeves.

7. The graphite heat-conducting heat sink according to claim 6, characterized in that: A plurality of reinforcing threads (11) are inserted into the protective sleeve (10), and the reinforcing threads (11) are nylon fiber threads.

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