CN216292005U - High-efficient heat dissipation type graphite flake - Google Patents
High-efficient heat dissipation type graphite flake Download PDFInfo
- Publication number
- CN216292005U CN216292005U CN202122875302.1U CN202122875302U CN216292005U CN 216292005 U CN216292005 U CN 216292005U CN 202122875302 U CN202122875302 U CN 202122875302U CN 216292005 U CN216292005 U CN 216292005U
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- CN
- China
- Prior art keywords
- layer
- heat
- graphite
- silica gel
- silver
- 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.)
- Expired - Fee Related
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 48
- 229910002804 graphite Inorganic materials 0.000 title claims abstract description 47
- 239000010439 graphite Substances 0.000 title claims abstract description 47
- 230000017525 heat dissipation Effects 0.000 title claims abstract description 10
- 239000010410 layer Substances 0.000 claims abstract description 96
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 32
- 239000011889 copper foil Substances 0.000 claims abstract description 32
- 239000000741 silica gel Substances 0.000 claims abstract description 32
- 229910002027 silica gel Inorganic materials 0.000 claims abstract description 32
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 30
- 239000000499 gel Substances 0.000 claims abstract description 9
- 239000012790 adhesive layer Substances 0.000 claims abstract description 8
- 230000001681 protective effect Effects 0.000 claims abstract description 6
- 229920002799 BoPET Polymers 0.000 claims description 4
- 239000002390 adhesive tape Substances 0.000 abstract description 3
- 230000035939 shock Effects 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000004033 diameter control Methods 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
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- Cooling Or The Like Of Semiconductors Or Solid State Devices (AREA)
- Laminated Bodies (AREA)
Abstract
The utility model discloses a high-efficiency heat dissipation type graphite sheet, which comprises: the heat-conducting double-sided adhesive layer is attached to the surface of the element to be cooled, the first heat-conducting silica gel layer attached to the upper surface of the heat-conducting double-sided adhesive layer, the silver-plated copper foil layer attached to the upper surface of the first heat-conducting silica gel layer, the second heat-conducting silica gel layer attached to the upper surface of the silver-plated copper foil layer, the graphite layer attached to the upper surface of the second heat-conducting silica gel layer and the insulating protection film layer attached to the upper surface of the graphite layer. The first heat-conducting silica gel layer and the silver-plated copper foil layer, the silver-plated copper foil layer and the second heat-conducting silica gel layer, the second heat-conducting silica gel layer and the graphite layer, and the graphite layer and the insulating protection film layer are bonded together by heat-conducting gel. The utility model has the beneficial effects that: the heat-conducting double-sided adhesive tape can be directly adhered to the surface of the element to be radiated. The graphite flake has good integral toughness and shock resistance, and reduces the risk of graphite breakage. The insulating protective film layer can prevent graphite from falling to the surface of the electronic component to cause short circuit or circuit failure.
Description
Technical Field
The utility model relates to the technical field of heat dissipation parts, in particular to a high-efficiency heat dissipation type graphite sheet.
Background
In the use of electronic products, since electronic components (such as processors of computers) generate a large amount of heat during operation, the heat is discharged in time, and the working performance of electronic components is affected. Graphite has excellent heat conducting performance and thus may be used widely in heat dissipating electronic element. At present, the graphite plate is mostly adopted for radiating parts of the electronic element, the graphite plate is installed on the surface of the element to be radiated through a thick substrate, the radiating effect is poor, and in addition, the graphite is easy to damage and fall powder, so that the short circuit or the circuit fault of the electronic element is caused.
SUMMERY OF THE UTILITY MODEL
Aiming at the problems in the prior art, the utility model provides a high-efficiency heat dissipation type graphite sheet.
In order to achieve the above object, the present invention provides a high-efficiency heat dissipation type graphite sheet, comprising: the heat-conducting double-sided adhesive layer is attached to the surface of the element to be cooled, the first heat-conducting silica gel layer attached to the upper surface of the heat-conducting double-sided adhesive layer, the silver-plated copper foil layer attached to the upper surface of the first heat-conducting silica gel layer, the second heat-conducting silica gel layer attached to the upper surface of the silver-plated copper foil layer, the graphite layer attached to the upper surface of the second heat-conducting silica gel layer and the insulating protection film layer attached to the upper surface of the graphite layer. The first heat-conducting silica gel layer and the silver-plated copper foil layer, the silver-plated copper foil layer and the second heat-conducting silica gel layer, the second heat-conducting silica gel layer and the graphite layer, and the graphite layer and the insulating protection film layer are bonded together by heat-conducting gel.
Preferably, the upper and lower surfaces of the silver-plated copper foil layer are roughened.
Preferably, the silver-plated copper foil layer is provided with a plurality of through holes communicating the upper surface and the lower surface of the silver-plated copper foil layer, and the diameter of each through hole is 1.8 mm-2.5 mm.
Preferably, the lower surface of the graphite layer is a rough surface.
Preferably, the insulating protective film layer is an insulating PET film.
Compared with the prior art, the utility model has the beneficial effects that: the graphite sheet can be directly bonded on the surface of the element to be radiated through the heat-conducting double-sided adhesive tape. Through setting up first heat conduction silica gel layer, silver-plated copper foil layer and second heat conduction silica gel layer, can improve the holistic toughness and the shock resistance of this graphite flake, reduce the damaged risk of graphite, can not weaken the radiating effect. By arranging the insulating protective film layer, short circuit or circuit fault caused by graphite powder falling to the surface of the electronic element can be prevented.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is a schematic diagram of a hierarchical structure according to an embodiment of the present invention.
The objects, features and advantages of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
The utility model provides a high-efficiency heat dissipation type graphite sheet.
Referring to fig. 1, fig. 1 is a schematic diagram of a hierarchical structure according to an embodiment of the present invention.
As shown in fig. 1, in an embodiment of the present invention, the high efficiency heat dissipation type graphite sheet includes: the heat-conducting double-sided adhesive layer 100 attached to the surface of the element to be cooled, the first heat-conducting silica gel layer 200 attached to the upper surface of the heat-conducting double-sided adhesive layer 100, the silver-plated copper foil layer 300 attached to the upper surface of the first heat-conducting silica gel layer 200, the second heat-conducting silica gel layer 400 attached to the upper surface of the silver-plated copper foil layer 300, the graphite layer 500 attached to the upper surface of the second heat-conducting silica gel layer 400, and the insulating protective film layer 600 attached to the upper surface of the graphite layer 500. The first heat-conducting silica gel layer 200 and the silver-plated copper foil layer 300, the silver-plated copper foil layer 300 and the second heat-conducting silica gel layer 400, the second heat-conducting silica gel layer 400 and the graphite layer 500, and the graphite layer 500 and the insulating protection film layer 600 are bonded together by heat-conducting gel. Silver layers are plated on both the upper and lower surfaces of the silver-plated copper foil layer 300 to improve the heat conductive property.
The graphite sheet can be directly bonded on the surface of the element to be radiated through the heat-conducting double-sided adhesive tape. Through setting up first heat conduction silica gel layer 200, silver-plated copper foil layer 300 and second heat conduction silica gel layer 400, can improve the holistic toughness of this graphite flake and shock resistance, reduce the damaged risk of graphite to can not weaken the radiating effect. By providing the insulating protective film 600, it is possible to prevent graphite from falling to the surface of the electronic component to cause a short circuit or a circuit failure.
Further, in this embodiment, the upper surface and the lower surface of silver-plated copper foil layer 300 are rough surfaces, and through setting up rough surfaces, the silver-plated copper foil bonds with the heat conduction gel more firmly, is difficult to appear the level separation condition.
Further, in this embodiment, silver-plated copper foil layer 300 is equipped with the through-hole of a plurality of intercommunication silver-plated copper foil layer 300's upper surface and lower surface for the heat conduction gel of silver-plated copper foil layer 300 upper and lower surface can bond together, and further makes silver-plated copper foil bond more firmly with heat conduction gel, is difficult to the condition that the level separation appears, and the diameter control of through-hole is at 1.8mm ~ 2.5mm, is favorable to the heat conduction gel of silver-plated copper foil layer 300 upper and lower surface to bond together more.
Further, in this embodiment, the lower surface of the graphite layer 500 is a rough surface, so that the lower surface of the graphite layer 500 is bonded with the heat conducting gel more firmly, and the situation of hierarchical separation is not easy to occur.
Preferably, in this embodiment, the insulating protection film layer 600 is an insulating PET film, and the PET film has high heat resistance, high bending strength, high fatigue resistance, high friction resistance, high flexibility, good electrical insulation performance, small influence of temperature, and low price.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications and equivalents of the technical solutions of the present invention, which are made by using the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (5)
1. A high-efficiency heat dissipation type graphite sheet, comprising: the heat-conducting double-sided adhesive layer is attached to the surface of an element to be radiated, the first heat-conducting silica gel layer is attached to the upper surface of the heat-conducting double-sided adhesive layer, the silver-plated copper foil layer is attached to the upper surface of the first heat-conducting silica gel layer, the second heat-conducting silica gel layer is attached to the upper surface of the silver-plated copper foil layer, the graphite layer is attached to the upper surface of the second heat-conducting silica gel layer, and the insulating protection film layer is attached to the upper surface of the graphite layer; the first heat-conducting silica gel layer and the silver-plated copper foil layer, the silver-plated copper foil layer and the second heat-conducting silica gel layer, the second heat-conducting silica gel layer and the graphite layer, and the graphite layer and the insulating protection film layer are bonded together by heat-conducting gel.
2. A high efficiency graphite heat dissipating sheet according to claim 1, wherein the silver-plated copper foil layer has a roughened surface on both upper and lower surfaces.
3. A high efficiency heat dissipating graphite sheet according to claim 1, wherein said silver-plated copper foil layer has a plurality of through holes communicating the upper and lower surfaces of said silver-plated copper foil layer, and the diameter of said through holes is 1.8mm to 2.5 mm.
4. A high efficiency heat dissipating graphite sheet according to claim 1, wherein the lower surface of said graphite layer is roughened.
5. A high efficiency heat dissipating graphite sheet according to any one of claims 1 to 4, wherein the insulating protective film layer is an insulating PET film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122875302.1U CN216292005U (en) | 2021-11-22 | 2021-11-22 | High-efficient heat dissipation type graphite flake |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122875302.1U CN216292005U (en) | 2021-11-22 | 2021-11-22 | High-efficient heat dissipation type graphite flake |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216292005U true CN216292005U (en) | 2022-04-12 |
Family
ID=81036144
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122875302.1U Expired - Fee Related CN216292005U (en) | 2021-11-22 | 2021-11-22 | High-efficient heat dissipation type graphite flake |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216292005U (en) |
-
2021
- 2021-11-22 CN CN202122875302.1U patent/CN216292005U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20220412 |