Graphite heat dissipation film with efficient heat dissipation structure

Abstract

The utility model belongs to the technical field of graphite heat dissipation films, and particularly relates to a graphite heat dissipation film with a high-efficiency heat dissipation structure, which comprises an upper graphene heat dissipation sheet, a lower graphene heat dissipation sheet arranged at the bottom of the upper graphene heat dissipation sheet, a copper foil layer arranged at the bottom of the upper graphene heat dissipation sheet, and an upper graphene heat dissipation sheet arranged at the bottom of the lower graphene heat dissipation sheet. A copper foil layer is arranged between the upper graphene cooling fin and the lower graphene cooling fin, a first arc-shaped groove is formed in the bottom of the upper graphene cooling fin, a second arc-shaped groove is formed in the top of the lower graphene cooling fin, the splicing face of the upper graphene cooling fin and the lower graphene cooling fin is of a wave-shaped structure, and the copper foil layer is arranged between the upper graphene cooling fin and the lower graphene cooling fin; the graphite heat dissipation film can effectively increase the heat conduction area, and meanwhile, first heat dissipation holes and second heat dissipation holes in the upper graphene heat dissipation sheet and the lower graphene heat dissipation sheet are matched for heat dissipation, so that the heat dissipation effect of the graphite heat dissipation film can be further improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to graphite heat dissipation film technical field, concretely relates to a graphite heat dissipation film with high -efficient heat dissipation structure. BACKGROUND

[0002] Graphite heat dissipation film, also known as heat-conducting graphite film, heat-conducting graphite sheet or graphite heat dissipation sheet, is a comprehensive heat-conducting material. Graphite heat dissipation sheet is a new heat-conducting and heat-dissipating material with unique crystal grain orientation, which conducts heat uniformly in two directions and has a sheet-like structure that can adapt to any surface. With the continuous progress of science and technology and the continuous improvement of electronic device performance, the demand for heat-dissipating materials is becoming increasingly high. Graphite heat dissipation film, as a high-efficiency heat-dissipating material, has broad development prospects. In the future, graphite heat dissipation film is expected to be applied and popularized in more fields, such as new energy vehicles, 5G communication devices and wearable devices. At the same time, with the continuous improvement and optimization of the preparation process, the performance of graphite heat dissipation film will be further improved to meet the higher heat-dissipating requirements.

[0003] Currently, the existing graphite heat dissipation film has the technical problem of small heat-dissipating area because the contact surface of the graphite heat dissipation film is small due to the sheet-like structure of the graphite heat dissipation film itself, which cannot conduct heat well and thus reduces the heat-dissipating effect of the graphite heat dissipation film. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a graphite heat dissipation film with high-efficiency heat dissipation structure to solve the problem of the existing graphite heat dissipation film, which cannot conduct heat well and thus reduces the heat-dissipating effect of the graphite heat dissipation film because the contact surface of the graphite heat dissipation film is small due to the sheet-like structure of the graphite heat dissipation film itself.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a graphite heat dissipation film with high-efficiency heat dissipation structure, comprising an upper graphene heat dissipation sheet, a lower graphene heat dissipation sheet arranged at the bottom of the upper graphene heat dissipation sheet, a copper foil layer arranged at the bottom of the upper graphene heat dissipation sheet, a first arc-shaped groove arranged at the bottom of the upper graphene heat dissipation sheet and a second arc-shaped groove arranged at the top of the lower graphene heat dissipation sheet.

[0006] As a preferred graphite heat dissipation film with high-efficiency heat dissipation structure of the utility model, the copper foil layer is located between the upper graphene heat dissipation sheet and the lower graphene heat dissipation sheet.

[0007] As the utility model discloses a graphite heat dissipation film with efficient heat dissipation structure, preferably, the first heat dissipation hole is located at the top of the copper foil layer, and the second heat dissipation hole is located at the bottom of the copper foil layer.

[0008] As the utility model discloses a graphite heat dissipation film with efficient heat dissipation structure, preferably, the first heat dissipation hole is located at the top of the copper foil layer, and the second heat dissipation hole is located at the bottom of the copper foil layer.

[0009] As the utility model discloses a graphite heat dissipation film with efficient heat dissipation structure, preferably, the cross section of the copper foil layer is wavy.

[0010] As the utility model discloses a graphite heat dissipation film with efficient heat dissipation structure, preferably, the cross section of the upper graphene heat dissipation sheet is wavy.

[0011] As the utility model discloses a graphite heat dissipation film with efficient heat dissipation structure, preferably, the cross section of the lower graphene heat dissipation sheet is wavy.

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

[0013] By setting the splicing surface of the upper graphene heat dissipation sheet and the lower graphene heat dissipation sheet as a wavy structure, and setting the copper foil layer between the upper graphene heat dissipation sheet and the lower graphene heat dissipation sheet, the heat conduction area can be effectively increased, and the upper graphene heat dissipation sheet and the lower graphene heat dissipation sheet are further cooled through the first heat dissipation hole and the second heat dissipation hole, so that the heat dissipation effect of the graphite heat dissipation film can be further improved. 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.In the drawings:

[0015] Fig. 1 It is the three-dimensional structure schematic diagram of the utility model;

[0016] Fig. 2 It is the three-dimensional explosion structure schematic diagram of the utility model;

[0017] Fig. 3 It is the main view structure schematic diagram of the utility model.

[0018] In the drawing: 1, upper graphene heat dissipation sheet;2, lower graphene heat dissipation sheet;3, copper foil layer;4, first heat dissipation hole;5, second heat dissipation hole;6, first arc-shaped groove;7, second arc-shaped groove. DETAILED DESCRIPTION

[0019] Clearly, the described embodiments are merely a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative efforts under the premise that no creative efforts are made, belong to the scope of protection of the present application.

[0020] Please refer to Figs. 1-3 The present application provides the following technical scheme: a graphite heat dissipation film with a high-efficiency heat dissipation structure, comprising an upper graphene heat dissipation sheet 1, a lower graphene heat dissipation sheet 2 arranged at the bottom of the upper graphene heat dissipation sheet 1, a copper foil layer 3 arranged at the bottom of the upper graphene heat dissipation sheet 1, a first arc-shaped groove 6 arranged at the bottom of the upper graphene heat dissipation sheet 1, and a second arc-shaped groove 7 arranged at the top of the lower graphene heat dissipation sheet 2.

[0021] Preferably, the copper foil layer 3 is located between the upper graphene heat dissipation sheet 1 and the lower graphene heat dissipation sheet 2, the cross section of the copper foil layer 3 is in a wave shape, the cross section of the bottom of the upper graphene heat dissipation sheet 1 is in a wave shape, and the cross section of the top of the lower graphene heat dissipation sheet 2 is in a wave shape.

[0022] It should be noted that the upper graphene heat dissipation sheet 1, the lower graphene heat dissipation sheet 2 and the copper foil layer 3 are connected through a heat-conducting adhesive layer or the connecting surface is roughened, and the connection is achieved through extrusion, wherein the thickness of the copper foil layer 3 is 0.15-0.2mm.

[0023] In specific use, the spliced surfaces of the upper graphene heat dissipation sheet 1 and the lower graphene heat dissipation sheet 2 are in a wave shape, and the copper foil layer 3 is arranged between the upper graphene heat dissipation sheet 1 and the lower graphene heat dissipation sheet 2, so as to effectively increase the heat conduction area.

[0024] Preferably, the first heat dissipation hole 4 is arranged at the end of the upper graphene heat dissipation sheet 1, the second heat dissipation hole 5 is arranged at the end of the lower graphene heat dissipation sheet 2, the first heat dissipation hole 4 is located at the top of the copper foil layer 3, and the second heat dissipation hole 5 is located at the bottom of the copper foil layer 3.

[0025] In specific use, the first heat dissipation hole 4 and the second heat dissipation hole 5 on the upper graphene heat dissipation sheet 1 and the lower graphene heat dissipation sheet 2 are matched to dissipate heat, so as to further improve the heat dissipation effect of the graphite heat dissipation film.

[0026] Working principle: firstly, the spliced surfaces of the upper graphene heat dissipation sheet 1 and the lower graphene heat dissipation sheet 2 are in a wave shape, and the copper foil layer 3 is arranged between the upper graphene heat dissipation sheet 1 and the lower graphene heat dissipation sheet 2, so as to effectively increase the heat conduction area, and the first heat dissipation hole 4 and the second heat dissipation hole 5 on the upper graphene heat dissipation sheet 1 and the lower graphene heat dissipation sheet 2 are matched to dissipate heat, so as to further improve the heat dissipation effect of the graphite heat dissipation film.

[0027] It should be pointed out finally that: the above is only the preferred embodiments 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, for those skilled in the art, it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for some of the technical features. Any modification, equivalent replacement, 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 graphite heat dissipation film with high-efficiency heat dissipation structure, comprising an upper graphene heat dissipation sheet (1), characterized in that: The bottom of the upper graphene heat dissipation sheet (1) is provided with a lower graphene heat dissipation sheet (2), the bottom of the upper graphene heat dissipation sheet (1) is provided with a copper foil layer (3), the bottom of the upper graphene heat dissipation sheet (1) is provided with a first arc-shaped groove (6), and the top of the lower graphene heat dissipation sheet (2) is provided with a second arc-shaped groove (7).

2. The graphite heat dissipation film with high-efficiency heat dissipation structure according to claim 1, characterized in that: The copper foil layer (3) is located between the upper graphene heat dissipation sheet (1) and the lower graphene heat dissipation sheet (2).

3. The graphite heat dissipation film with high-efficiency heat dissipation structure according to claim 1, characterized in that: The end of the upper graphene heat dissipation sheet (1) is provided with a first heat dissipation hole (4), and the end of the lower graphene heat dissipation sheet (2) is provided with a second heat dissipation hole (5).

4. The graphite heat dissipation film with high-efficiency heat dissipation structure according to claim 3, characterized in that: The first heat dissipation hole (4) is located at the top of the copper foil layer (3), and the second heat dissipation hole (5) is located at the bottom of the copper foil layer (3).

5. The graphite heat dissipation film with high-efficiency heat dissipation structure according to claim 2, characterized in that: The cross section of the copper foil layer (3) is in a wave shape.

6. The graphite heat dissipation film with high-efficiency heat dissipation structure according to claim 1, characterized in that: The bottom of the cross section of the upper graphene heat dissipation sheet (1) is in a wave shape.

7. The graphite heat dissipation film with high-efficiency heat dissipation structure according to claim 1, characterized in that: The top of the cross section of the lower graphene heat dissipation sheet (2) is in a wave shape.

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