CN107624024A - A kind of dilute glued membrane heat sink compound of graphite and manufacture craft - Google Patents
A kind of dilute glued membrane heat sink compound of graphite and manufacture craft Download PDFInfo
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- CN107624024A CN107624024A CN201710911734.9A CN201710911734A CN107624024A CN 107624024 A CN107624024 A CN 107624024A CN 201710911734 A CN201710911734 A CN 201710911734A CN 107624024 A CN107624024 A CN 107624024A
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Abstract
The present invention provides a kind of dilute glued membrane heat sink compound of graphite and manufacture craft, including Al foil substrate layer and the first heat-conducting glue film layer and the second conductive adhesive film that are spread evenly across the Al foil substrate layer tow sides respectively；Also include composite heat dissipation material layer, the first heat-conducting glue film layer is between composite heat dissipation material layer and Al foil substrate layer, the dilute glued membrane of the graphite is due to containing aluminium base, simultaneously but also with shielding, it is conductive, electrostatic output function, so as to substitute the scheme that the graphite flake at present on FPC adds copper platinum or conducting resinl, reduce cost and fitting is bad, the design is very beneficial for the radiating of electronic device, reduce the cost of high radiating requirements material and the complexity of attaching process, reduce die cutting procedure, make material processing eased, save manpower, power cost, save raw material, and environmental protection and energy saving.
Description
[technical field]
The present invention relates to composite radiating graphite flake products and manufacture technology field, more particularly to one kind effectively to save into
Sheet and the dilute glued membrane heat sink compound of graphite and manufacture craft of energy-conserving and environment-protective.
[background technology]
The heating elements such as mobile phone at present, tablet personal computer are (such as：Display screen, CPU, mainboard, battery etc.), used radiating
Material is electrographite piece, or natural graphite flakes, the naked material thickness of different graphite flakes (such as 17um, 25um, 40um etc.), radiating
For coefficient XY in 800~1800W/mk, Z-direction only has 10~15W/mk, but needs double faced adhesive tape to be bonded in heating when in use
Source surface, and outer layer cover one side glue and wrapped up again, and thus adhesive tape turns into the thermal resistance of fin, and makes actual coefficient of heat transfer
It is reduced to 400~500W/m.k.
Based on above mentioned problem, how could be carried by the improvement and improvement in terms of carrying out product structure and manufacture craft
High overall heat dispersion, those skilled in the art has carried out substantial amounts of research and development and experiment, and achieves preferable achievement.
[content of the invention]
To overcome the problems of prior art, the present invention provides a kind of stone that can effectively save cost and energy-conserving and environment-protective
The dilute glued membrane heat sink compound of ink and manufacture craft.
The scheme that the present invention solves technical problem is to provide a kind of dilute glued membrane heat sink compound of graphite and manufacture craft, including
Al foil substrate layer and the first heat-conducting glue film layer and the second heat-conducting glue for being spread evenly across the Al foil substrate layer tow sides respectively
Film；Also include composite heat dissipation material layer, the first heat-conducting glue film layer is between composite heat dissipation material layer and Al foil substrate layer.
Preferably, the composite heat dissipation material layer is buffering foam sponge layer or graphite flake layer.
Preferably, the first heat-conducting glue film layer and the second conductive adhesive film are the heat-conducting glue for including Graphene powder and glue
Film layer.
Preferably, the thickness of the Al foil substrate layer is more than the thickness of composite heat dissipation material layer.
A kind of dilute glued membrane heat sink compound manufacture craft of graphite, comprises the following steps,
S1：The graphite powder and glue of preparation fixed mass proportioning；And by graphite powder carry out it is expanded after the obtained dilute powder of graphite
Mixed with glue；
S2：The mixture that the dilute powder of graphite mixes with glue in step S1 is stirred, mixing time is controlled, obtains heat conduction
Glued membrane；
S3：Conductive adhesive film obtained by step S2 is spread evenly across to the Al foil substrate tow sides pre-set；It is prepared into
To the dilute heat-conducting glue band of graphite；
S4：The dilute heat-conducting glue band of graphite that cleaning S3 is prepared, and attach and delay in the dilute heat conduction tape surface of the graphite
Brew continuous material layer or attach the graphite sheet material of predetermined thickness；The graphite with buffering foam sponge material layer is prepared respectively
Dilute glued membrane composite buffering foam sponge sheet or the dilute glued membrane composite stone ink sheet of graphite with graphite flake；
S5：Material is prepared and finished.
Preferably, the dilute heat-conducting glue band of graphite that the step S3 is prepared XY to coefficient of heat transfer be 600-800W/
m.k。
Preferably, the buffering foam sponge material layer used in the step S4 is macromolecule composite heat-conducting, high compression ratio bubble silk floss
Cushioned material layer.
Compared with prior art, a kind of dilute glued membrane heat sink compound of graphite of the present invention and manufacture craft by setting aluminium simultaneously
Paper tinsel base material layer 11 and the first heat-conducting glue film layer 12 and the second heat conduction for being spread evenly across the tow sides of Al foil substrate layer 11 respectively
Glued membrane 14, with reference to the composite heat dissipation material layer 15 positioned at the outer surface of the first heat-conducting glue film layer 12, the dilute glued membrane of graphite due to containing
Aluminium base, while but also with shielding, conduction, electrostatic output function, add copper platinum so as to substitute the graphite flake at present on FPC
Or the scheme of conducting resinl, reduce cost and fitting is bad, the design is very beneficial for the radiating of electronic device, and reducing high radiating needs
The cost of material and the complexity of attaching process are asked, reduces die cutting procedure, makes material processing eased, saves manpower, electric power
Cost, save raw material, and environmental protection and energy saving.
[brief description of the drawings]
Fig. 1 is a kind of layer structure schematic diagram of the dilute glued membrane heat sink compound of graphite of the present invention.
Fig. 2 is a kind of flowage structure schematic diagram of the dilute glued membrane heat sink compound manufacture craft of graphite of the present invention.
[embodiment]
To make the purpose of the present invention, technical scheme and advantage are more clearly understood, below in conjunction with drawings and Examples, to this
Invention is further elaborated.It should be appreciated that specific embodiment described herein is used only for explaining the present invention, not
For limiting this invention.
Refer to Fig. 1 and Fig. 2, a kind of dilute glued membrane heat sink compound 1 of graphite of the present invention, including Al foil substrate layer 11 and divide
The the first heat-conducting glue film layer 12 and the second conductive adhesive film 14 of the tow sides of Al foil substrate layer 11 are not spread evenly across；Also include multiple
Heat radiation material layer 15 is closed, the first heat-conducting glue film layer 12 is between composite heat dissipation material layer 15 and Al foil substrate layer 11.
By setting Al foil substrate layer 11 simultaneously and being spread evenly across the first of the tow sides of Al foil substrate layer 11 respectively
The conductive adhesive film 14 of heat-conducting glue film layer 12 and second, with reference to the composite heat dissipation material layer positioned at the outer surface of the first heat-conducting glue film layer 12
15, the dilute glued membrane of graphite is due to containing aluminium base, while but also with shielding, conductive, electrostatic output function, so as to substitute at present
Graphite flake on FPC adds the scheme of copper platinum or conducting resinl, reduces cost and fitting is bad, the design is very beneficial for electronics device
The radiating of part, the cost of high radiating requirements material and the complexity of attaching process are reduced, reduce die cutting procedure, make material processing more
Add simple, saving manpower, power cost, saving raw material, and environmental protection and energy saving.
Preferably, the composite heat dissipation material layer 15 is buffering foam sponge layer or graphite flake layer.
Preferably, the first heat-conducting glue film layer 12 and the second conductive adhesive film 14 are to include leading for Graphene powder and glue
Hot glue film layer.
Preferably, the thickness of the Al foil substrate layer 11 is more than the thickness of composite heat dissipation material layer 15.
A kind of dilute glued membrane heat sink compound manufacture craft of graphite, comprises the following steps,
S1：The graphite powder and glue of preparation fixed mass proportioning；And by graphite powder carry out it is expanded after the obtained dilute powder of graphite
Mixed with glue；
S2：The mixture that the dilute powder of graphite mixes with glue in step S1 is stirred, mixing time is controlled, obtains heat conduction
Glued membrane；
S3：Conductive adhesive film obtained by step S2 is spread evenly across to the Al foil substrate tow sides pre-set；It is prepared into
To the dilute heat-conducting glue band of graphite；
S4：The dilute heat-conducting glue band of graphite that cleaning S3 is prepared, and attach and delay in the dilute heat conduction tape surface of the graphite
Brew continuous material layer or attach the graphite sheet material of predetermined thickness；The graphite with buffering foam sponge material layer is prepared respectively
Dilute glued membrane composite buffering foam sponge sheet or the dilute glued membrane composite stone ink sheet of graphite with graphite flake；
S5：Material is prepared and finished.
Preferably, the dilute heat-conducting glue band of graphite that the step S3 is prepared XY to coefficient of heat transfer be 600-800W/
m.k。
Preferably, the buffering foam sponge material layer used in the step S4 is macromolecule composite heat-conducting, high compression ratio bubble silk floss
Cushioned material layer.
1/ by graphite powder carry out it is expanded after obtain the dilute powder of graphite, then be mixed into glue, obtain conductive adhesive film, then
Be spread evenly across Al foil substrate two sides, so as to the dilute heat-conducting glue band of graphite, only the dilute heat-conducting glue band of graphite can with realize XY to
Coefficient of heat transfer reach 600~800W/m.k.In actual use, the dilute heat-conducting glue of graphite is can be used alone, can also be with leading
Hot glue compound vacuole is continuous, or the graphite flake of compound different-thickness uses.
2/ after composite stone ink sheet (artificial synthesized or natural can be with), obtains the dilute glued membrane composite radiating graphite flake of graphite,
So Z-direction heat conduction quickly in XY to radiating, and can be carried out by Al foil substrate by the direct contact heating source of thermal paste
Afterwards, surface soaking is carried out by upper strata glued membrane, then radiated by the superiors' graphite flake, thus reach more efficient radiating, heat conduction,
Heat, the system radiating scheme of radiating, so as to solve existing poorly efficient radiating graphite flake scheme, and high cost low heat emission completely
MULTILAYER COMPOSITE graphite flake scheme.
3/ after composite buffering bubble is continuous, will obtain macromolecule composite heat-conducting and high compression ratio steeps continuous padded coaming, possess certainly
It is viscous, antidetonation, the comprehensive function for shielding of radiating, available for the radiating between mobile phone or the pressure screen and center of other electronic equipments
Buffering, and it is stronger compared to the structure for adding bubble silk floss to be superimposed with traditional graphite, and thermal diffusivity is more prominent.
Compared with prior art, a kind of dilute glued membrane heat sink compound 1 of graphite of the present invention by setting Al foil substrate layer simultaneously
11 and the first heat-conducting glue film layer 12 and the second conductive adhesive film 14 of the tow sides of Al foil substrate layer 11 are spread evenly across respectively, knot
The composite heat dissipation material layer 15 positioned at the outer surface of the first heat-conducting glue film layer 12 is closed, the dilute glued membrane of graphite is due to containing aluminium base, together
When but also with shielding, it is conductive, electrostatic output function, add copper platinum or conducting resinl so as to substitute the graphite flake at present on FPC
Scheme, reduce cost and fitting it is bad, the design is very beneficial for the radiating of electronic device, reduces high radiating requirements material
The complexity of cost and attaching process, die cutting procedure is reduced, make material processing eased, save manpower, power cost, save
Raw material, and environmental protection and energy saving.
The embodiments of the present invention described above are not intended to limit the scope of the present invention.It is any in the present invention
Spirit and principle within the modifications, equivalent substitutions and improvements made etc., should be included in the claim protection model of the present invention
Within enclosing.
Claims (7)
- A kind of 1. dilute glued membrane heat sink compound of graphite, it is characterised in that：It is spread evenly across including Al foil substrate layer and respectively this First heat-conducting glue film layer of Al foil substrate layer tow sides and the second conductive adhesive film；Also include composite heat dissipation material layer, this first Heat-conducting glue film layer is between composite heat dissipation material layer and Al foil substrate layer.
- A kind of 2. dilute glued membrane heat sink compound of graphite as claimed in claim 1, it is characterised in that：The composite heat dissipation material layer For buffering foam sponge layer or graphite flake layer.
- A kind of 3. dilute glued membrane heat sink compound of graphite as claimed in claim 1, it is characterised in that：The first heat-conducting glue film layer It is to include Graphene powder and the heat-conducting glue film layer of glue with the second conductive adhesive film.
- 4. the dilute glued membrane heat sink compound of a kind of graphite as described in any one claim in claim 1 or 3, its feature It is：The thickness of the Al foil substrate layer is more than the thickness of composite heat dissipation material layer.
- A kind of 5. dilute glued membrane heat sink compound manufacture craft of graphite, it is characterised in that：Comprise the following steps,S1：The graphite powder and glue of preparation fixed mass proportioning；And by graphite powder carry out it is expanded after the obtained dilute powder of graphite and glue Water mixes；S2：The mixture that the dilute powder of graphite mixes with glue in step S1 is stirred, mixing time is controlled, obtains heat-conducting glue Film；S3：Conductive adhesive film obtained by step S2 is spread evenly across to the Al foil substrate tow sides pre-set；Stone is prepared The dilute heat-conducting glue band of ink；S4：The dilute heat-conducting glue band of graphite that cleaning S3 is prepared, and attach buffering bubble in the dilute heat conduction tape surface of the graphite Continuous material layer or the graphite sheet material for attaching predetermined thickness；The dilute glue of graphite with buffering foam sponge material layer is prepared respectively Film composite buffering foam sponge sheet or the dilute glued membrane composite stone ink sheet of graphite with graphite flake；S5：Material is prepared and finished.
- A kind of 6. dilute glued membrane heat sink compound manufacture craft of graphite as claimed in claim 5, it is characterised in that：The step S3 The dilute heat-conducting glue band of graphite being prepared XY to coefficient of heat transfer be 600-800W/m.k.
- A kind of 7. dilute glued membrane composite radiating stone manufacture craft of graphite as claimed in claim 5, it is characterised in that：The step S4 The middle buffering foam sponge material layer used is macromolecule composite heat-conducting, the continuous cushioned material layer of high compression ratio bubble.
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| CN201710911734.9A CN107624024A (en) | 2017-09-29 | 2017-09-29 | A kind of dilute glued membrane heat sink compound of graphite and manufacture craft |
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| CN201710911734.9A CN107624024A (en) | 2017-09-29 | 2017-09-29 | A kind of dilute glued membrane heat sink compound of graphite and manufacture craft |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107946113A (en) * | 2017-12-20 | 2018-04-20 | 苏州佳值电子工业有限公司 | A kind of Al foil substrate for keyboard components |
| CN108540611A (en) * | 2018-05-12 | 2018-09-14 | 深圳莱必德科技股份有限公司 | Plate and its manufacturing method in a kind of mobile phone |
| CN109003703A (en) * | 2018-08-09 | 2018-12-14 | 苏州远征魂车船技术有限公司 | A kind of single side transfer-type graphene film structure and preparation method thereof |
| CN110484154A (en) * | 2019-07-26 | 2019-11-22 | 新纶科技（常州）有限公司 | A kind of multi-functional composite heat-conducting adhesive tape |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107946113A (en) * | 2017-12-20 | 2018-04-20 | 苏州佳值电子工业有限公司 | A kind of Al foil substrate for keyboard components |
| CN108540611A (en) * | 2018-05-12 | 2018-09-14 | 深圳莱必德科技股份有限公司 | Plate and its manufacturing method in a kind of mobile phone |
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| CN109003703A (en) * | 2018-08-09 | 2018-12-14 | 苏州远征魂车船技术有限公司 | A kind of single side transfer-type graphene film structure and preparation method thereof |
| CN110484154A (en) * | 2019-07-26 | 2019-11-22 | 新纶科技（常州）有限公司 | A kind of multi-functional composite heat-conducting adhesive tape |
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Legal Events
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| PB01 | Publication | ||
| PB01 | Publication | ||
| CB03 | Change of inventor or designer information |
Inventor after: Liang Xiaofeng Inventor after: Chen Jian Inventor before: Liang Xiaofeng Inventor before: Chen Jian Inventor before: Chen Fujian Inventor before: Yan Haitao Inventor before: Chen Le |
|
| CB03 | Change of inventor or designer information | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20180130 Address after: Futian District Ronghua Road Shenzhen City, Guangdong province 518000 city 8 3 6 meters apartment 2422 Applicant after: Liang Xiaofeng Applicant after: Chen Jian Address before: Longgang District of Shenzhen City, Guangdong province 518000 Street Community Li Lang cloth LAN Lu Sheng Science Park, No. 5 building five floor Applicant before: Shenzhen Cheng Yue Feng Technology Co., Ltd. |
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| TA01 | Transfer of patent application right | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180123 |
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| RJ01 | Rejection of invention patent application after publication |