CN218465730U

CN218465730U - Ultrathin graphite heat dissipation film

Info

Publication number: CN218465730U
Application number: CN202123410783.5U
Authority: CN
Inventors: 周二风; 刘建会; 江点
Original assignee: Yancheng Jiuzhi New Material Technology Co ltd
Current assignee: Yancheng Jiuzhi New Material Technology Co ltd
Priority date: 2021-12-30
Filing date: 2021-12-30
Publication date: 2023-02-10
Anticipated expiration: 2031-12-30

Abstract

The utility model discloses an ultra-thin graphite heat dissipation membrane, include: PET substrate layer and graphite alkene layer, PET substrate layer and the surperficial coating that graphite alkene layer carried on the back mutually have a mute black ink layer of heat conduction, are connected through first heat conduction gluing layer between graphite alkene layer and the PET substrate layer, the PET substrate layer has plated the first metal wire that a plurality of parallel interval set up and the second metal wire that a plurality of parallel interval set up towards graphite alkene layer's surface, and first metal wire and second metal wire are the setting of crossing, and graphite alkene layer and PET substrate layer surface coating that carries on the back mutually have a second heat conduction gluing layer, one from the surface of type material layer subsides in second heat conduction gluing layer, have a plurality of bump from the surface of type material layer and second heat conduction gluing layer contact. The utility model discloses ultra-thin graphite heat dissipation membrane can effectively shield external electromagnetic field and disturb electronic product to reliability when having improved electronic product's the use has also improved the stability of the heat dispersion of ultra-thin graphite heat dissipation membrane.

Description

Ultra-thin graphite heat dissipation film

Technical Field

The utility model relates to an ultra-thin graphite heat dissipation membrane belongs to heat dissipation membrane technical field.

Background

On the one hand, along with the acceleration of the present upgrading of electronic product, the popularization of high power, high thermal chip, on the other hand, the rapid development of science and technology, electronic device is miniaturized gradually, and the dominant frequency of chip is higher and higher, and power is bigger and bigger, leads to heat flux density to increase sharply, produces a large amount of heats. Failure to process the heat in a timely manner can affect the operation of the electronic device, reduce the lifetime of the device, and may present safety concerns. In the prior art, a heat dissipation film is used to improve the heat dissipation problem of an electronic device, but there are still many technical spaces that can be improved in the prior art, such as: electronic products are subject to interference from external electromagnetic fields.

Disclosure of Invention

The utility model aims at providing an ultra-thin graphite radiating film, this ultra-thin graphite radiating film can effectively shield external electromagnetic field and disturb electronic product to reliability when having improved electronic product's the use has also improved the stability of the heat dispersion of ultra-thin graphite radiating film.

In order to achieve the above purpose, the utility model adopts the technical scheme that: an ultra-thin graphite heat spreading film comprising: PET substrate layer and graphite alkene layer, the surface coating that PET substrate layer and graphite alkene layer carried on the back mutually has the mute black ink layer of a heat conduction, be connected through first heat conduction adhesive layer between graphite alkene layer and the PET substrate layer, the PET substrate layer has plated the first metal wire that the parallel interval of a plurality of set up and the second metal wire that the parallel interval of a plurality of set up towards the surface of graphite alkene layer, first metal wire and second metal wire are the setting of crossing, graphite alkene layer and PET substrate layer back of the body surface coating mutually have a second heat conduction adhesive layer, one from the surface that the material layer pasted in second heat conduction adhesive layer, the surface that comes into contact with second heat conduction adhesive layer from the material layer has a plurality of bump.

The further improved scheme in the technical scheme is as follows:

1. in the above scheme, the first metal wire and the second metal wire are both silver wires or aluminum wires.

2. In the scheme, the thickness of the graphene layer is 80 to 300 mu m.

3. In the scheme, the thickness of the heat-conducting matte black ink layer is 10 to 30 micrometers.

4. In the above scheme, the release material layer is release paper or a release film.

5. In the scheme, the surface roughness of the release material layer with the salient points is 3-5 microns.

Because of above-mentioned technical scheme's application, compared with the prior art, the utility model have the following advantage:

1. the utility model discloses ultra-thin graphite heat dissipation membrane, the surface coating that its PET substrate layer and graphite alkene layer carried on the back mutually has the mute black ink layer of a heat conduction, the PET substrate layer has plated the first metal wire that a plurality of parallel interval set up and the second metal wire that a plurality of parallel interval set up towards the surface of graphite alkene layer, first metal wire and second metal wire are the setting of crossing, high durability and convenient use, tear the back off the profile material layer, directly paste in the heat source surface of electronic product, when the realization is cooled down the heat conduction to electronic product, also can effectively shield external electromagnetic field and disturb electronic product, thereby reliability when having improved electronic product's use.

2. The utility model discloses ultra-thin graphite radiating film, it is applied in the surface on second heat conduction adhesive layer from the material layer subsides, has a plurality of bump from the surface of material layer in contact with second heat conduction adhesive layer, bubble when having avoided laminating with the heat source surface to lead to the heat can not effectual radiating defect, further improved the stability of the heat dispersion of ultra-thin graphite radiating film.

Drawings

FIG. 1 is a schematic structural view of the ultra-thin graphite heat dissipation film of the present invention;

figure 2 is the utility model discloses the view of following of PET substrate layer in the heat dissipation pad pasting.

In the above drawings: 1. a PET substrate layer; 2. a graphene layer; 3. a heat-conducting matte black ink layer; 4. a first thermally conductive adhesive layer; 5. a first metal line; 6. a second metal line; 7. a release material layer; 8. a second thermally conductive adhesive layer; 9. and (6) salient points.

Detailed Description

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; furthermore, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "coupled" are to be construed broadly and encompass, for example, both fixed and removable coupling as well as integral coupling; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood as a specific case by those skilled in the art.

Example 1: an ultra-thin graphite heat spreading film comprising: PET substrate layer 1 and graphite alkene layer 2, the surface coating that PET substrate layer 1 and graphite alkene layer 2 carried on the back has the mute black ink layer 3 of a heat conduction, be connected through first heat conduction gluing layer 4 between graphite alkene layer 2 and the PET substrate layer 1, PET substrate layer 1 has plated the first metal wire 5 that the parallel interval of a plurality of set up and the second metal wire 6 that the parallel interval of a plurality of set up towards graphite alkene layer 2's surface, first metal wire 5 and second metal wire 6 are the setting of crossing, graphite alkene layer 2 and the surface coating that PET substrate layer 1 carried on the back have a second heat conduction gluing layer 8, one from type material layer 7 and paste in the surface of second heat conduction gluing layer 8, the surface of 7 and the contact of second heat conduction gluing layer 8 of type material layer has a plurality of bump 9.

The first metal wire 5 and the second metal wire 6 are both aluminum wires.

The first metal line 5 and the second metal line 6 are vertically disposed.

The thickness of the heat-conducting matte black ink layer 3 is 20 micrometers, and the release material layer 7 is release paper.

The release material layer 7 had a surface roughness of the bumps 9 of 3.5 μm.

Example 2: an ultra-thin graphite heat spreading film comprising: PET substrate layer 1 and graphite alkene layer 2, the surface coating that PET substrate layer 1 and graphite alkene layer 2 carried on the back has the mute black ink layer 3 of a heat conduction, be connected through first heat conduction gluing layer 4 between graphite alkene layer 2 and the PET substrate layer 1, PET substrate layer 1 has plated the first metal wire 5 that the parallel interval of a plurality of set up and the second metal wire 6 that the parallel interval of a plurality of set up towards graphite alkene layer 2's surface, first metal wire 5 and second metal wire 6 are the setting of crossing, graphite alkene layer 2 and the surface coating that PET substrate layer 1 carried on the back have a second heat conduction gluing layer 8, one from type material layer 7 and paste in the surface of second heat conduction gluing layer 8, the surface of 7 and the contact of second heat conduction gluing layer 8 of type material layer has a plurality of bump 9.

The first metal wire 5 and the second metal wire 6 are both silver wires.

The first metal wire 5 and the second metal wire 6 are arranged at an included angle of 60 degrees.

The thickness of the heat-conducting matte black ink layer 3 is 12 micrometers, and the release material layer 7 is a release film.

The release material layer 7 has a surface roughness of 4.8 μm of the bump 9.

When adopting above-mentioned ultra-thin graphite heat dissipation membrane, the dull black ink layer of a heat conduction has been coated on its PET substrate layer and the surperficial coating that graphene layer carried on the back mutually, the PET substrate layer has plated the first metal wire that a plurality of parallel interval set up and the second metal wire that a plurality of parallel interval set up towards graphene layer's surface, first metal wire and second metal wire are the cross setting, high durability and convenient use, tear the back off the section material layer, directly paste the heat source surface in electronic product, when the realization is cooled down the heat conduction to electronic product, also can effectively shield external electromagnetic field and disturb electronic product, thereby reliability when electronic product's use has been improved.

In addition, it is applied in the surface of second heat conduction gluing layer from the material layer subsides, has a plurality of bump from the surface that the material layer contacted with second heat conduction gluing layer, has avoided producing the bubble with heat source surface laminating to lead to the heat can not effectual radiating defect, further improved the stability of the heat dispersion of ultra-thin graphite radiating film.

The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose of the embodiments is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, which cannot limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.

Claims

1. The utility model provides an ultra-thin graphite heat dissipation membrane which characterized in that: the method comprises the following steps: PET substrate layer (1) and graphite alkene layer (2), the surface coating that PET substrate layer (1) and graphite alkene layer (2) carried on the back has a mute black ink layer of heat conduction (3) with graphite alkene layer (2) mutually, be connected through first heat conduction adhesive layer (4) between graphite alkene layer (2) and the PET substrate layer (1), PET substrate layer (1) has plated first metal wire (5) that a plurality of parallel interval set up and second metal wire (6) that a plurality of parallel interval set up towards the surface of graphite alkene layer (2), first metal wire (5) and second metal wire (6) are the cross setting, graphite alkene layer (2) and PET substrate layer (1) surface coating mutually have a second heat conduction adhesive layer (8) mutually, one from type (7) paste the surface of applying in second heat conduction adhesive layer (8), the surface of type material layer (7) and second heat conduction adhesive layer (8) contact has a plurality of bump (9).

2. The ultra-thin graphite heat spreading film of claim 1, wherein: the first metal wire (5) and the second metal wire (6) are both silver wires or aluminum wires.

3. The ultra-thin graphite heat spreading film of claim 1, wherein: the thickness of the graphene layer (2) is 80-300 mu m.

4. The ultra-thin graphite heat spreading film of claim 1, wherein: the thickness of the heat-conducting matte black ink layer (3) is 10 to 30 micrometers.

5. The ultra-thin graphite heat spreading film of claim 1, wherein: the release material layer (7) is release paper or a release film.

6. The ultra-thin graphite heat spreading film of claim 1, wherein: the surface roughness of the release material layer (7) with the salient points (9) is 3-5 mu m.