CN215735485U - Graphite flake product with net point protection film - Google Patents
Graphite flake product with net point protection film Download PDFInfo
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- CN215735485U CN215735485U CN202121349517.3U CN202121349517U CN215735485U CN 215735485 U CN215735485 U CN 215735485U CN 202121349517 U CN202121349517 U CN 202121349517U CN 215735485 U CN215735485 U CN 215735485U
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Abstract
The utility model relates to the field of graphite flake products, in particular to a graphite flake product with a dot protective film. The utility model provides an develop the application of novel site protection film structure on graphite product, through making into the protection film surface into the punctiform, the salient point size, the area, the clearance can be according to the modification of different products making correspondences, set up the salient point to have viscidity, only need realize bonding through salient point and single face glue film at the protection film, can be in order to reduce the viscidity area of contact of blue protection film and product, so when the protection film tears in the use, can avoid in the traditional technique, make black single face glue and the condition of the separated productivity bubble layering phenomenon of graphite flake take place. After the product is verified for many times, the improved product structure reduces the layering risk and improves the stability and the function application of the radiating fins.
Description
Technical Field
The utility model relates to the field of graphite flake products, in particular to a graphite flake product with a dot protective film.
Background
With the rapid development of science and technology and the great pursuit of people on the 'thinness, lightness, smallness and intellectualization' of mobile phone products, the smart phone changes with the ground coverage, and accordingly, mobile phone software generates heat seriously when running at high speed, and if heat dissipation is not carried out through good measures, the heat dissipation problem of the smart phone needs to be solved, and the damage to the hardware of the phone body can be caused, and the discomfort to users can be easily caused.
The graphite flake is a good heat conduction material, has heat conductivity exceeding that of various metals such as steel, iron, lead and the like, and is widely applied to heat dissipation of the smart phone. Through carrying out structural design to the graphite flake, thickness piles up, and the material is chooseed for use and is matchd, combines single face to glue, and the double faced adhesive tape, materials such as protection film carry out compound cross cutting shaping. Attached cell-phone LCM, inside such as battery, camera, support, the heat transfer that can produce components and parts carries out the heat diffusion to each position of graphite flake fast to play the radiating effect.
At present, the traditional blue protective film applied to a graphite product is planar, and the whole surface is coated with glue. The structure of the graphite flake is blue protective film + black single-sided adhesive + graphite flake. When the traditional plane protection film is contacted with the black single-sided adhesive, the contact area is large, and the adhesive force is large. When the blue protective film is torn off in the using process, the black single-sided adhesive and the graphite flake are separated to generate the bubble layering phenomenon. Thereby affecting the heat dissipation function of the product.
Disclosure of Invention
In order to solve the problems, the utility model provides a graphite flake product with a dot protective film, wherein the protective film can reduce the adhesive contact area of a blue protective film and the product only by adhering the convex points and the single-sided adhesive layer, so that when the protective film is torn off in the use process, the phenomenon that the black single-sided adhesive and the graphite flake are separated to generate bubble layering in the traditional technology can be avoided.
In order to achieve the purpose, the utility model adopts the technical scheme that: a graphite flake product with a dot protection film comprises a protection film, a single-sided adhesive layer, a graphite flake layer, a double-sided adhesive layer and a release film which are sequentially laminated from top to bottom; the surface of the protective film facing the single-side glue layer is provided with a plurality of sticky protruding points, the protective film is bonded on the surface of the single-side glue layer without stickiness through the protruding points, the edge of the single-side glue layer with the sticky surface is bonded with the edge of the double-side glue layer, the single-side glue layer and the double-side glue layer form a graphite accommodating space, the graphite sheet layer is positioned in the graphite accommodating space, the sticky surface of the single-side glue layer is bonded with the surface of the graphite sheet layer, the bottom surface of the graphite sheet layer is bonded with the surface of the double-side glue layer, and the back surface of the double-side glue layer is bonded with the release film.
Further, the end at protruding point is provided with the silica gel adhesion coating, protruding point does not have sticky surface bonding through silica gel adhesion coating and single face glue, and protruding point is circular structure, and its diameter is 0.25mm, and the thickness of silica gel adhesion coating is 3-6 um.
Further, the protection film is a blue transparent protection film, and the gram weight of the blue transparent protection film is as follows: 1g to 3.3 g.
Further, the thickness of the blue transparent protective film was 50 μm.
Further, the thickness of the graphite sheet is 17 to 400 μm.
Further, the graphite sheet layer comprises a single graphite sheet or a plurality of graphite sheets.
Further, the thickness of the single-sided adhesive layer is 7-30 μm.
Further, the thickness of the double-sided adhesive layer is 10-30 μm.
Further, the thickness of the release film is 50 + -5 μm.
Further, the single-side adhesive layer is an opaque black single-side adhesive layer.
The utility model has the beneficial effects that:
the utility model provides an develop the application of novel site protection film structure on graphite product, through making into the protection film surface into the punctiform, the salient point size, the area, the clearance can be according to the modification of different products making correspondences, set up the salient point to have viscidity, only need realize bonding through salient point and single face glue film at the protection film, can be in order to reduce the viscidity area of contact of blue protection film and product, so when the protection film tears in the use, can avoid in the traditional technique, make black single face glue and the condition of the separated productivity bubble layering phenomenon of graphite flake take place. After the product is verified for many times, the improved product structure reduces the layering risk and improves the stability and the function application of the radiating fins.
Drawings
Fig. 1 is a schematic sectional view of a graphite sheet product with a dot protective film.
The reference numbers illustrate: 1. the protective film comprises a protective film, 11 protruding points, 111 silica gel adhesive layers, 2 single-sided adhesive layers, 3 graphite sheet layers, 31 graphite accommodating spaces, 4 double-sided adhesive layers and 5 release films.
Detailed Description
Referring to fig. 1, the present invention relates to a graphite sheet product with a dot protective film, which comprises a protective film 1, a single-sided adhesive layer 2, a graphite sheet layer 3, a double-sided adhesive layer 4, and a release film 5, which are sequentially stacked from top to bottom; the surface of the protection film 1 facing the single-side glue layer 2 is provided with a plurality of sticky protruding points 11, the protection film 1 is bonded on the surface of the single-side glue layer 2 without stickiness through the protruding points 11, the edge of the sticky surface of the single-side glue layer 2 is bonded with the edge of the double-side glue layer 4, the single-side glue layer 2 and the double-side glue layer 4 form a graphite accommodating space 31, the graphite sheet layer 3 is located in the graphite accommodating space 31, the sticky surface of the single-side glue layer 2 is bonded with the surface of the graphite sheet layer 3, the bottom surface of the graphite sheet layer 3 is bonded with the surface of the double-side glue layer 4, and the back surface of the double-side glue layer 4 is bonded with the release film 5.
The application develops the application of novel structure of site protection film 1 on graphite product, through making into the dot shape with 1 surface of protection film, salient point 11 size, the area, the clearance can be according to the modification of different products do the correspondence, set up salient point 11 to have viscidity, only need realize bonding through salient point 11 and single face glue film 2 at protection film 1, can reduce the viscidity area of contact of blue protection film 1 and product, so when protection film 1 tears off in the use, can avoid in the traditional technology, make black single face glue and the condition of the separate productivity bubble layering phenomenon of graphite flake take place. After the product is verified for many times, the improved product structure reduces the layering risk and improves the stability and the function application of the radiating fins.
Further, the tail end of the protruding point 11 is provided with a silica gel adhesive layer 111, and the protruding point 11 is bonded with the surface of the single-sided adhesive without viscosity through the silica gel adhesive layer 111. And the convex points are of a circular structure, the diameter of the convex points is 0.25mm, and the thickness of the silica gel adhesive layer is 3-6 um.
Further, the protective film 1 is a blue transparent protective film 1.
Further, the thickness of the blue transparent protective film 1 was 50 μm. The gram weight of the blue protective film is various, and the gram weight of the blue protective film is generally 1-1.6g,1.5-2g,2.3-3.3g,1.3-1.8g and the like, but the gram weight is not limited to the above gram weight, and can be newly added or adjusted according to the product requirement.
Further, the thickness of the graphite sheet 3 is 17 to 400 μm. Graphite flake thickness is 17um of individual layer, 25um, 32um, 40um, 50um, 70um and the graphite of different individual layer thickness carries out the multilayer and piles up, and general product total thickness is 50um-400um, and the total thickness is more of following usefulness of 100um, and the total thickness of product refers to the product total thickness of single face glue + graphite + double faced adhesive tape simultaneously.
Further, the graphite sheet layer 3 comprises a single graphite sheet or a plurality of graphite sheets.
Further, the thickness of the single-sided adhesive layer 2 is 7-30 μm. The single-sided adhesive layer 2 generally has a thickness of 7 μm,10 μm,15 μm,20 μm,30 μm, of which 10 μm and 15 μm are more preferred.
Further, the thickness of the double-sided adhesive layer 4 is 10-30 μm. The double-sided adhesive layer should be 10-30 μm,10 μm,15 μm,20 μm,30 μm in this position, with 10 μm and 15 μm being used more.
Further, the thickness of the release film 5 was 50 μm. Release film 5 is typically used at 50 μm, tolerance +/-5.
Further, the single-sided adhesive layer 2 is an opaque black single-sided adhesive layer 2.
The whole product is mainly applied to internal heating positions of mobile phones, flat plates, pens and the like, and plays a role in heat dissipation. In the application, the edge of the sticky surface of the single-sided adhesive layer 2 is bonded with the edge of the double-sided adhesive layer 4, the single-sided adhesive layer 2 and the double-sided adhesive layer 4 form a graphite accommodating space 31, the graphite sheet layer 3 is positioned in the graphite accommodating space 31, the sticky surface of the single-sided adhesive layer 2 is bonded with the surface of the graphite sheet layer 3, and the bottom surface of the graphite sheet layer 3 is bonded with the surface of the double-sided adhesive layer 4; the graphite sheet layer 3 is wrapped by the upper single-face adhesive layer 2 and the lower double-face adhesive layer 4, so that the graphite is prevented from falling slag and scraps, and the product function is prevented from being influenced. Meanwhile, in the application, the blue transparent silica gel protective film 1 plays a role in protection and positioning during mounting.
The above embodiments are merely illustrative of the preferred embodiments of the present invention, and not restrictive, and various changes and modifications to the technical solutions of the present invention may be made by those skilled in the art without departing from the spirit of the present invention, and the technical solutions of the present invention are intended to fall within the scope of the present invention defined by the appended claims.
Claims (10)
1. A graphite flake product with net point protection film which characterized in that: the adhesive tape comprises a protective film, a single-sided adhesive layer, a graphite sheet layer, a double-sided adhesive layer and a release film which are sequentially laminated from top to bottom; the surface of the protective film facing the single-side glue layer is provided with a plurality of sticky protruding points, the protective film is bonded on the surface of the single-side glue layer without stickiness through the protruding points, the edge of the single-side glue layer with the sticky surface is bonded with the edge of the double-side glue layer, the single-side glue layer and the double-side glue layer form a graphite accommodating space, the graphite sheet layer is positioned in the graphite accommodating space, the sticky surface of the single-side glue layer is bonded with the surface of the graphite sheet layer, the bottom surface of the graphite sheet layer is bonded with the surface of the double-side glue layer, and the back surface of the double-side glue layer is bonded with the release film.
2. A graphite sheet product with a dot protective film according to claim 1, wherein: the end of salient point is provided with the silica gel adhesive layer, the salient point does not have sticky surface bonding through silica gel adhesive layer and single face glue, and the salient point is circular structure, and its diameter is 0.25mm, and the thickness of silica gel adhesive layer is 3-6 um.
3. A graphite sheet product with a dot protective film according to claim 1, wherein: the protective film is a blue transparent protective film, and the gram weight of the blue transparent protective film is as follows: 1g to 3.3 g.
4. A graphite sheet product with a dot protective film according to claim 3, wherein: the thickness of the blue transparent protective film was 50 μm.
5. A graphite sheet product with a dot protective film according to claim 3, wherein: the thickness of the graphite sheet layer is 17-400 μm.
6. A graphite sheet product with a dot protective film according to any one of claims 1 to 3, wherein: the graphite sheet layer comprises a single graphite sheet or a plurality of graphite sheets.
7. A graphite sheet product with a dot protective film according to claim 1, wherein: the thickness of the single-side adhesive layer is 7-30 mu m.
8. A graphite sheet product with a dot protective film according to claim 1, wherein: the thickness of the double-sided adhesive layer is 10-30 mu m.
9. A graphite sheet product with a dot protective film according to claim 1, wherein: the thickness of the release film is 50 +/-5 mu m.
10. A graphite sheet product with a dot protective film according to claim 1 or 7, wherein: the single-side adhesive layer is an opaque black single-side adhesive layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121349517.3U CN215735485U (en) | 2021-06-17 | 2021-06-17 | Graphite flake product with net point protection film |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121349517.3U CN215735485U (en) | 2021-06-17 | 2021-06-17 | Graphite flake product with net point protection film |
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| CN215735485U true CN215735485U (en) | 2022-02-01 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116042187A (en) * | 2022-12-30 | 2023-05-02 | 常州富烯科技股份有限公司 | Flexible graphite composite heat conducting film and preparation method thereof |
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2021
- 2021-06-17 CN CN202121349517.3U patent/CN215735485U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116042187A (en) * | 2022-12-30 | 2023-05-02 | 常州富烯科技股份有限公司 | Flexible graphite composite heat conducting film and preparation method thereof |
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