Novel composite graphite heat dissipation film

Abstract

The utility model belongs to the technical field of graphite heat dissipation films, and particularly relates to a novel composite graphite heat dissipation film which comprises a graphite heat dissipation film body, a protective film adheres to the top end face of the graphite heat dissipation film body, an isolating film adheres to the bottom end face of the graphite heat dissipation film body, and non-woven fabric is connected to the top end face of the protective film. By adopting the design of the non-woven fabric, the first fixing part and the second fixing part can be easily separated from the first fixing glue and the second fixing glue and are allowed to be alternately fixed on the first fixing glue and the second fixing glue again. According to the design, the connecting wire can be stably clamped between the first fixing part and the second fixing part, movement of the connecting wire caused by working vibration transmission of the electrical equipment is effectively reduced, friction to the top surface of the graphite heat dissipation film in the movement process is effectively reduced, and therefore sinking caused by friction is avoided, and the service life of the connecting wire is prolonged. And the heat dissipation performance of the graphite heat dissipation film body is ensured not to be influenced.

Description

Technical Field

[0001] This utility model belongs to the field of graphite heat dissipation film technology, specifically relating to a novel composite graphite heat dissipation film. Background Technology

[0002] Graphite heat dissipation film, also known as thermally conductive graphite film, thermally conductive graphite sheet, or graphite heat sink, is a new type of thermally conductive and heat dissipation material. It has a unique grain orientation and conducts heat uniformly in two directions. Its layered structure can adapt well to any surface, shielding heat sources and components while improving the performance of consumer electronics products.

[0003] Existing graphite heat dissipation films are mainly used for heat dissipation in electrical equipment. They need to adhere tightly to the heat source of the equipment. However, in some cases, the connecting wires between electrical devices are located on the top surface of the graphite heat dissipation film. The vibrations generated during the operation of the equipment are transmitted to the connecting wires, causing them to rub against the surface of the graphite heat dissipation film. On the one hand, this friction wears down the surface of the graphite heat dissipation film, reducing its flatness and thus affecting the heat transfer efficiency between the film and the heat source. On the other hand, friction also increases the surface roughness of the graphite heat dissipation film, forming tiny scratches or dents, which increase thermal resistance and further reduce heat dissipation performance. Utility Model Content

[0004] The purpose of this invention is to provide a novel composite graphite heat dissipation film, aiming to solve the problem in existing technologies where vibrations are transmitted to the connecting wires, causing friction between the connecting wires and the graphite heat dissipation film surface. On one hand, friction wears down the surface of the graphite heat dissipation film, reducing its flatness and thus affecting the heat transfer efficiency between the heat dissipation film and the heat source. On the other hand, friction also increases the surface roughness of the graphite heat dissipation film, forming tiny scratches or depressions, which increase thermal resistance and further reduce heat dissipation performance.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a novel composite graphite heat dissipation film, comprising a graphite heat dissipation film body, wherein the graphite heat dissipation film body is composed of a first double-sided adhesive layer, a second double-sided adhesive layer and a graphite layer, wherein the graphite layer is connected between the first double-sided adhesive layer and the second double-sided adhesive layer, a protective film is adhered to the top surface of the graphite heat dissipation film body, an isolation film is adhered to the bottom surface of the graphite heat dissipation film body, a non-woven fabric is connected to the top surface of the protective film, the surface of the non-woven fabric is symmetrically divided into a first fixing part and a second fixing part, a through hole is provided on the surface of the second fixing part for the first fixing part to be removed, and a first fixing adhesive and a second fixing adhesive are connected to the top surface of the protective film.

[0006] As a novel composite graphite heat dissipation film of the utility model optimally, the protective film is a thin transparent protective film made of polyethylene terephthalate high polymer material, and the thickness of the protective film is between 1 and 3 microns.

[0007] As a novel composite graphite heat dissipation film of the utility model optimally, the isolation film is a plastic transparent isolation film made of PVC material, and the thickness is between 1 and 3 microns.

[0008] As a novel composite graphite heat dissipation film of the utility model optimally, the graphite heat dissipation film body, the protective film and the isolation film are adhesively connected and the thickness is 1-3 mm.

[0009] As a novel composite graphite heat dissipation film of the utility model optimally, the first fixing part and the second fixing part are adhesively connected with the protective film through the first fixing glue and the second fixing glue.

[0010] As a novel composite graphite heat dissipation film of the utility model optimally, the non-woven fabric is a glass fiber material non-woven fabric.

[0011] As a novel composite graphite heat dissipation film of the utility model optimally, the graphite heat dissipation film body is provided with a groove at one end, and the groove is in the shape of "V".

[0012] Compared with the prior art, the utility model has the beneficial effects that:

[0013] The utility model discloses a novel composite graphite heat dissipation film, which comprises a graphite heat dissipation film body, a protective film and an isolation film. BRIEF DESCRIPTION OF DRAWINGS

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

[0015] Figure 1 It is the main body structure schematic diagram of the utility model;

[0016] Figure 2 It is the protective film structure schematic diagram of the utility model;

[0017] Figure 3 The utility model discloses a graphite heat dissipation film structure schematic diagram shows.

[0018] Figure 4 The utility model discloses a graphite heat dissipation film use structure schematic diagram shows.

[0019] In the drawing: 1, graphite heat dissipation film body; 101, graphite layer; 102, second double -sided adhesive layer; 103, first double -sided adhesive layer; 2, isolation film; 3, protective film; 4, recess; 5, non -woven fabric; 6, first fixed part; 7, second fixed part; 8, first fixed glue; 9, second fixed glue. Specific implementation

[0020] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model and not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.

[0021] Please refer to Figures 1-4 The utility model provides the following technical scheme: a novel composite graphite heat dissipation film, including graphite heat dissipation film body 1, graphite heat dissipation film body 1 is by first double -sided adhesive layer 103, second double -sided adhesive layer 102 and graphite layer 101 constitutes, graphite layer 101 is connected between first double -sided adhesive layer 103, second double -sided adhesive layer 102, the top end surface of graphite heat dissipation film body 1 is adhered with protective film 3, the bottom end surface of graphite heat dissipation film body 1 is adhered with isolation film 2, the top end surface of protective film 3 is connected with non -woven fabric 5, the surface of non -woven fabric 5 is divided into first fixed part 6 and second fixed part 7 relatively symmetrical, the surface of second fixed part 7 is through and is provided with the through -hole of the first fixed part 6 removal, the top of protective film 3 is connected with first fixed glue 8 and second fixed glue 9.

[0022] In the preferred embodiment, the protective film 3 is a thin transparent protective film made of polyethylene terephthalate high molecular material, and the thickness of the protective film 3 is between 1 to 3 microns.

[0023] In the preferred embodiment, the isolation film 2 is a plastic transparent isolation film made of PVC material, and the thickness of the isolation film 2 is between 1 to 3 microns.

[0024] In the preferred embodiment, the graphite heat dissipation film body 1, the protective film 3 and the isolation film 2 are adhesively connected, and the thickness is between 1 to 3 millimeters.

[0025] In the preferred embodiment, the first fixed part 6 and the second fixed part 7 are adhesively connected to the protective film 3 through the first fixed glue 8 and the second fixed glue 9.

[0026] In the preferred embodiment, the non-woven fabric 5 is made of glass fiber.

[0027] In the preferred embodiment, the graphite heat dissipation film body 1 has a groove 4 at one end, which is in the shape of a "V".

[0028] In the preferred embodiment, the graphite heat dissipation film body 1 is composed of a first double-sided adhesive layer 103, a second double-sided adhesive layer 102, and a graphite layer 101, thereby forming a composite graphite heat dissipation film.

[0029] In the application of the graphite heat dissipation film body 1, it needs to be closely adhered to the heat source part of the electrical equipment. After connecting the graphite heat dissipation film body 1, we can properly place the connecting lines between the electrical equipment on the top of the non-woven fabric 5. Then, the first fixing part 6 and the second fixing part 7 can be separated from the first fixing glue 8 and the second fixing glue 9, and pass through the through hole of the second fixing part 7 through the first fixing part 6, realizing the alternative re-fixing of the two on the first fixing glue 8 and the second fixing glue 9. This design ensures that the connecting lines are firmly clamped between the first fixing part 6 and the second fixing part 7, effectively reducing the movement of the connecting lines caused by the vibration of the electrical equipment, and the friction on the top surface of the graphite heat dissipation film, thereby preventing the indentation caused by friction and ensuring the heat dissipation performance of the graphite heat dissipation film body 1.

[0030] It is worth noting that when the connecting lines are fixed, they present a "V" shape layout with the graphite heat dissipation film body 1, which is designed to avoid the adverse effects of the graphite heat dissipation film body 1 on the connecting lines during heat dissipation. At the same time, the non-woven fabric 5 is made of glass fiber, which has the characteristics of high strength, wear resistance, corrosion resistance, and high temperature resistance, etc., which can effectively reduce the potential impact of heat transfer to the top of the non-woven fabric 5 on the connecting lines.

[0031] In addition, one end of the graphite heat dissipation film body 1 is designed with a groove 4, which facilitates manual operation, allowing the fingers to easily extend into and separate the connecting lines between the graphite heat dissipation film body 1 and the isolation film 2, thereby ensuring that the second double-sided adhesive layer 102 of the graphite heat dissipation film body 1 can be closely adhered to the heat source part of the electrical equipment.

[0032] Finally, it should be noted that the above description is only a preferred embodiment of the present application and is not intended to limit the present application. Although the present application 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 technical features. Any modification, equivalent substitution, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A novel composite graphite heat dissipation film, comprising a graphite heat dissipation film body (1), the graphite heat dissipation film body (1) is composed of a first double-sided adhesive layer (103), a second double-sided adhesive layer (102) and a graphite layer (101), the graphite layer (101) is connected between the first double-sided adhesive layer (103) and the second double-sided adhesive layer (102), characterized in that: The top end surface of the graphite heat dissipation film body (1) is attached with a protective film (3), and the bottom end surface of the graphite heat dissipation film body (1) is attached with a separation film (2); ​ The top end surface of the protective film (3) is connected with a non-woven fabric (5), the surface of the non-woven fabric (5) is symmetrically divided into a first fixing part (6) and a second fixing part (7), the surface of the second fixing part (7) is throughly provided with a through hole for the first fixing part (6) to move out, and the top end of the protective film (3) is connected with a first fixing glue (8) and a second fixing glue (9).

2. The novel composite graphite heat dissipation film according to claim 1, characterized in that: The protective film (3) is a thin transparent protective film made of polyethylene terephthalate high polymer material, and the thickness of the protective film (3) is between 1 and 3 microns.

3. The novel composite graphite heat dissipation film according to claim 1, characterized in that: The separation film (2) is a plastic transparent separation film made of PVC material, and the thickness is between 1 and 3 microns.

4. The novel composite graphite heat dissipation film according to claim 1, characterized in that: The graphite heat dissipation film body (1), the protective film (3) and the separation film (2) are adhesively connected and the thickness is between 1 and 3 millimeters.

5. The novel composite graphite heat dissipation film according to claim 1, characterized in that: The first fixing part (6) and the second fixing part (7) are adhesively connected with the protective film (3) through the first fixing glue (8) and the second fixing glue (9).

6. The novel composite graphite heat dissipation film according to claim 1, characterized in that: The non-woven fabric (5) is a non-woven fabric made of glass fiber.

7. The novel composite graphite heat dissipation film according to claim 1, characterized in that: The graphite heat dissipation film body (1) is provided with a groove (4) at one end, and the groove (4) is in the shape of "V".

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