CN219824058U - Composite graphite heat dissipation film - Google Patents
Composite graphite heat dissipation film Download PDFInfo
- Publication number
- CN219824058U CN219824058U CN202320477632.1U CN202320477632U CN219824058U CN 219824058 U CN219824058 U CN 219824058U CN 202320477632 U CN202320477632 U CN 202320477632U CN 219824058 U CN219824058 U CN 219824058U
- Authority
- CN
- China
- Prior art keywords
- heat dissipation
- film
- heat
- graphite
- graphite heat
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 230000017525 heat dissipation Effects 0.000 title claims abstract description 53
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 42
- 229910002804 graphite Inorganic materials 0.000 title claims abstract description 42
- 239000010439 graphite Substances 0.000 title claims abstract description 42
- 239000002131 composite material Substances 0.000 title claims abstract description 12
- 239000010410 layer Substances 0.000 claims abstract description 38
- 239000002184 metal Substances 0.000 claims abstract description 17
- 239000012790 adhesive layer Substances 0.000 claims abstract description 15
- 239000011248 coating agent Substances 0.000 claims abstract description 11
- 238000000576 coating method Methods 0.000 claims abstract description 11
- 238000005524 ceramic coating Methods 0.000 claims description 5
- 229920001721 polyimide Polymers 0.000 claims description 5
- 239000012528 membrane Substances 0.000 claims 3
- 239000004593 Epoxy Substances 0.000 claims 1
- 150000001875 compounds Chemical class 0.000 claims 1
- 238000010030 laminating Methods 0.000 claims 1
- 238000010438 heat treatment Methods 0.000 abstract description 3
- 230000000149 penetrating effect Effects 0.000 abstract description 2
- 229910021383 artificial graphite Inorganic materials 0.000 abstract 1
- 239000003822 epoxy resin Substances 0.000 description 4
- 229920000647 polyepoxide Polymers 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000007547 defect Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Landscapes
- Laminated Bodies (AREA)
Abstract
The utility model discloses a composite graphite heat dissipation film which comprises a graphite heat dissipation film body, wherein the graphite heat dissipation film body comprises a release film layer, an insulating adhesive layer, a bearing film layer, a heat conduction metal layer, a heat dissipation graphite film and an insulating coating which are sequentially arranged and attached, a plurality of heat conduction micropores are formed in the surface of the bearing film layer in an equidistant penetrating manner, and the heat conduction metal layer is composed of a plurality of honeycomb heat dissipation sheets with equal intervals. Aiming at the problems that in the prior art, the artificial graphite sheet has smaller heat capacity and poor heat conductivity coefficient, and electronic products with higher heating temperature can not completely solve the heat dissipation and the like, the utility model has the advantages of larger heat capacity, good heat conductivity coefficient, capability of solving the heat dissipation problem and the like; to solve the problems presented in the prior art.
Description
Technical Field
The utility model relates to the technical field of heat conduction materials, in particular to a composite graphite heat dissipation film.
Background
The graphite heat dissipation film is a very thin heat conduction material, also called as a heat conduction graphite film, a heat conduction graphite sheet, a graphite heat dissipation sheet and the like, and provides possibility for the thinning development of electronic products. The graphite heat dissipation film has good reworkability, can be compounded or glued with other film materials such as PET and the like according to purposes, has elasticity, can be cut and punched into any shape, and can be bent for many times.
The existing artificial heat-conducting graphite flake has smaller heat capacity and poor heat conductivity, and cannot completely solve the heat dissipation problem when dealing with electronic products with higher heating temperature.
Disclosure of Invention
The utility model aims to overcome the defects of the prior art, and provides a composite graphite heat dissipation film which has the advantages of larger heat capacity, good heat conductivity, capability of solving the heat dissipation problem when dealing with electronic products with higher heating temperature and the like; to solve the problems presented in the prior art.
The utility model is realized by the following technical scheme: the utility model discloses a composite graphite heat dissipation film which comprises a graphite heat dissipation film body, wherein the graphite heat dissipation film body comprises a release film layer, an insulating adhesive layer, a bearing film layer, a heat conduction metal layer, a heat dissipation graphite film and an insulating coating which are sequentially arranged and attached, a plurality of heat conduction micropores are formed in the surface of the bearing film layer in an equidistant penetrating manner, and the heat conduction metal layer is composed of a plurality of honeycomb heat dissipation sheets with equal intervals.
Furthermore, in order to enable the heat conducting metal layer to have more heat conducting surfaces, a plurality of honeycomb heat radiating grooves are formed in the honeycomb heat radiating sheet.
Furthermore, in order to protect the graphite sheet and improve the insulativity and durability of the body, the insulating coating is an insulating heat-conducting ceramic coating.
Furthermore, in order to improve the heat conductivity of the body to the maximum and keep the light and thin effect, the bearing film layer is a polyimide film.
Further, in order to prevent the adhesive layer from affecting the heat dissipation function, the insulating adhesive layer is made of epoxy resin.
Furthermore, in order to make the whole light and thin and reduce the occupied space, the thickness of the graphite heat dissipation film body is 30-220 μm.
The utility model has the following advantages:
the bearing film layer is a polyimide film, a plurality of heat conduction micropores are formed in the surface of the bearing film layer at equal intervals, so that the heat conduction coefficient of the body is improved to the greatest extent, the light and thin effect of the bearing film layer is kept, the heat conduction metal layer is composed of a plurality of honeycomb heat dissipation sheets with equal intervals, a plurality of honeycomb heat dissipation grooves are formed in the honeycomb heat dissipation sheets, the heat conduction metal layer is provided with more heat conduction surfaces, the insulating adhesive layer is made of epoxy resin, the heat dissipation function of the adhesive layer is not affected, the insulating coating is an insulating heat conduction ceramic coating, and the insulating property and the durability of the body are protected and improved for the graphite sheet.
Drawings
FIG. 1 is a schematic cross-sectional view of the present utility model;
fig. 2 is a schematic view of a heat conductive metal layer structure according to the present utility model.
In the figure: 1. a graphite heat dissipation film body; 2. a release film layer; 3. an insulating adhesive layer; 4. a carrier film layer; 5. a heat-dissipating graphite film; 6. an insulating coating; 7. a thermally conductive microporous; 8. a thermally conductive metal layer; 9. a honeycomb heat dissipation sheet; 10. honeycomb heat dissipation grooves.
Detailed Description
The following detailed description of embodiments of the present utility model, which are given by taking the technical solution of the present utility model as a premise, gives detailed embodiments and specific operation procedures, but the scope of the present utility model is not limited to the following embodiments, and in the description of the present utility model, words indicating orientation or positional relationship like "front", "rear", "left", "right", etc. are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element to be referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.
The utility model provides a technical scheme that: as shown in fig. 1 and 2, the composite graphite heat dissipation film comprises a graphite heat dissipation film body 1, wherein the graphite heat dissipation film body 1 comprises a release film layer 2, an insulating adhesive layer 3, a bearing film layer 4, a heat conduction metal layer 8, a heat dissipation graphite film 5 and an insulating coating 6 which are sequentially arranged and attached, a plurality of heat conduction micropores 7 are formed in the surface of the bearing film layer 4 in an equidistant manner, and the heat conduction metal layer 8 consists of a plurality of honeycomb heat dissipation sheets 9 with equal intervals.
As shown in fig. 1 and 2, a plurality of honeycomb heat dissipation grooves 10 are formed on the honeycomb heat dissipation sheet 9, so that the heat conduction metal layer has more heat conduction surfaces.
As shown in fig. 1 and 2, the insulating coating 6 is an insulating heat-conducting ceramic coating, protects the graphite sheet and improves the insulation and durability of the body.
As shown in fig. 1 and 2, the carrier film layer 4 is a polyimide film, so that the thermal conductivity of the body is improved to the maximum extent while keeping the light and thin effect.
As shown in fig. 1 and 2, the insulating adhesive layer 3 is made of epoxy resin, and the adhesive layer does not affect the heat dissipation function.
As shown in fig. 1 and 2, the graphite heat dissipation film body 1 has a thickness of 30-220 μm, is light and thin in volume, saves the internal space of components and has a wide application range.
The principle of the utility model is as follows: the graphite heat dissipation film body 1 comprises a release film layer 2, an insulating adhesive layer 3, a bearing film layer 4, a heat conduction metal layer 8, a heat dissipation graphite film 5 and an insulating coating 6 which are sequentially arranged and attached, wherein a plurality of heat conduction micropores 7 are formed in an equidistant mode on the surface of the bearing film layer 4, the bearing film layer 4 is a polyimide film, the heat conduction coefficient of the body is improved to the maximum extent, meanwhile, the heat conduction metal layer 8 is formed by a plurality of honeycomb heat dissipation sheets 9 with equal intervals, a plurality of honeycomb heat dissipation grooves 10 are formed in the honeycomb heat dissipation sheets 9, the heat conduction metal layer is provided with more heat conduction surfaces, the insulating adhesive layer 3 is made of epoxy resin, the heat dissipation function is not affected by the adhesive layer, the insulating coating 6 is an insulating heat conduction ceramic coating, and the insulating property and durability of the body are protected and improved by the graphite sheets.
Claims (6)
1. The utility model provides a compound graphite heat dissipation membrane, includes graphite heat dissipation membrane body, its characterized in that, graphite heat dissipation membrane body is from type rete, insulating adhesive layer, load-bearing rete, heat conduction metal layer, heat dissipation graphite film, insulating coating including the order arrangement laminating, it wears to be equipped with a plurality of heat conduction micropore to bear rete surface equidistance, the heat conduction metal layer comprises a plurality of honeycomb heat dissipation thin slices that the interval is equal.
2. The composite graphite heat dissipation film as defined in claim 1, wherein said honeycomb heat dissipation sheet is provided with a plurality of honeycomb heat dissipation grooves.
3. A composite graphite heat sink film as recited in claim 1 wherein said insulating coating is an insulating thermally conductive ceramic coating.
4. The composite graphite heat sink film as recited in claim 1 wherein said carrier film layer is a polyimide film.
5. A composite graphite heat sink film as recited in claim 1 wherein said insulating adhesive layer is made of epoxy.
6. A composite graphite heat-dissipating film as set forth in claim 1, wherein said graphite heat-dissipating film body has a thickness of 30 μm to 220 μm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320477632.1U CN219824058U (en) | 2023-03-09 | 2023-03-09 | Composite graphite heat dissipation film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320477632.1U CN219824058U (en) | 2023-03-09 | 2023-03-09 | Composite graphite heat dissipation film |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219824058U true CN219824058U (en) | 2023-10-13 |
Family
ID=88280001
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320477632.1U Active CN219824058U (en) | 2023-03-09 | 2023-03-09 | Composite graphite heat dissipation film |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219824058U (en) |
-
2023
- 2023-03-09 CN CN202320477632.1U patent/CN219824058U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |