CN104416969A - Composite graphite cooling fin - Google Patents
Composite graphite cooling fin Download PDFInfo
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- CN104416969A CN104416969A CN201310379106.2A CN201310379106A CN104416969A CN 104416969 A CN104416969 A CN 104416969A CN 201310379106 A CN201310379106 A CN 201310379106A CN 104416969 A CN104416969 A CN 104416969A
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- graphite
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
- B32B9/005—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising one layer of ceramic material, e.g. porcelain, ceramic tile
- B32B9/007—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising one layer of ceramic material, e.g. porcelain, ceramic tile comprising carbon, e.g. graphite, composite carbon
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2264/00—Composition or properties of particles which form a particulate layer or are present as additives
- B32B2264/10—Inorganic particles
- B32B2264/107—Ceramic
- B32B2264/108—Carbon, e.g. graphite particles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/30—Properties of the layers or laminate having particular thermal properties
- B32B2307/302—Conductive
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2457/00—Electrical equipment
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Laminated Bodies (AREA)
- Cooling Or The Like Of Semiconductors Or Solid State Devices (AREA)
Abstract
The invention relates to a composite graphite cooling fin for electric equipment products and precision equipment. The composite graphite cooling fin comprises an elastic body and a graphite flake arranged on the outer surface of the elastic body, wherein the graphite flake comprises a first base material film, a second base material film and at least one graphite layer arranged between the first base material film and the second base material film. When in use, the composite graphite cooling fin can be very easily stuck on a heat source of the electric equipment product and the like, so that the heat emitted by the heat source of the electric equipment product and the like can be rapidly dissipated outside, the source of falling of graphite scraps can be eliminated, and the volume is minimized. Therefore, when the composite graphite cooling fin is stuck on the heat source of the electric equipment product and the like for use, the accident such as short circuit, failure and fire of the electric equipment product caused by the falling of the tiny scraps can be avoided even under the condition that impact is applied to the interior or exterior of the electric equipment product or the electric equipment product is used for a long time.
Description
Technical field
The present invention relates to a kind of fin for electric equipment products, precision equipment, more specifically, relate to a kind of composite graphite fin.
Background technology
In general, the electric equipment products such as computer, mobile phone, TV can generate heat in a large number in lasting use procedure, if the heat sent can not diffuse to outside in time, the parts of electric equipment products inside may be caused to break down, or shorten product service life.Heating is also one of major reason causing product bug and fire.
In order to reach good radiating effect, people use the graphite material with outstanding heat conductivility to manufacture fin usually.In order to realize the highest heat conduction efficiency, usually adopt the graphite sheet of the anisotropic graphite compacting of purity more than 99%.But the physical characteristic of graphite flake itself must cause graphite flake also can be separated into countless layers under the effect of very little power.The small chip split away off from graphite flake may cause the short circuit of electric equipment products, even may fire be caused to occur.
In order to solve the problem, generally can adopt the method for coating, the section exposed at graphite flake carries out coating, thus prevents small chip from coming off.But coating layer thickness often has certain limit, if run into the larger External Force Acting of intensity, still coating shedding can be caused.In addition, people also can adopt the method for bound edge to solve chip to come off problem, with film film, graphite heat radiation fin is carried out bound edge process, but bound edge Technical comparing is complicated, original cost can be caused to rise.
The using method of existing graphite heat radiation fin is generally that graphite flake is directly pasted on thermal source.Along with the development of science and technology, electric equipment products is always to light, little, thin direction development, thus cause electric equipment products inner space constantly to reduce, electric equipment products parts are also constantly diminishing, and can produce more heat in the process that operates at high power of little electric equipment products and electronic component.But more and more less electric equipment products inner space causes dispelling the heat and becomes increasing problem.If according to the conventional method, graphite flake is pasted on directly or indirectly electronic component (thermal source), because constantly diminishing of electronic component and constantly diminishing of electric equipment products overall space, the graphite flake area being pasted on thermal source can constantly diminish.The physical characteristic of graphite flake is anisotropic heat dissipation, thus graphite flake has outstanding heat radiation and equal thermal effect in the horizontal direction, if graphite flake area diminishes, weakening of radiating effect will inevitably be caused, thus the efficiently radiates heat requirement under electric equipment products hot condition of work occurred frequently cannot be met.Thus, the area increasing graphite flake in limited space becomes another problem demanding prompt solution.
Summary of the invention
The object of the invention is to, a kind of composite graphite fin is provided, avoid the carbon granules of graphite to come off, in little space, farthest increase the area of dissipation of graphite flake simultaneously, thus the heat that the thermals source such as electric equipment products produce effectively is diffused to outside rapidly.
In composite graphite fin of the present invention, comprise elastomer, be arranged at the first base film of described outer elastomeric surface and the second base film, be arranged at graphite flake between described first base film and described second base film.
In composite graphite fin of the present invention, described graphite flake comprises at least one deck graphite linings, and described graphite flake thickness is 10 ~ 500 μm.
In composite graphite fin of the present invention, described graphite linings is one deck, uses the first adhesive layer to be adhesively fixed between described first base film and described graphite linings, uses the second adhesive layer to be adhesively fixed between described second base film and described graphite linings.
In composite graphite fin of the present invention, described graphite linings is multilayer, the 3rd adhesive layer is used to be adhesively fixed described in adjacent two layers between graphite linings, described first base film and described be adhesively fixed after Multi-layer graphite layer between use the first adhesive layer to be adhesively fixed, described second base film and described be adhesively fixed after Multi-layer graphite layer between use the second adhesive layer to be adhesively fixed.
In composite graphite fin of the present invention, described graphite flake radius rate is 26.7 ~ 52.9, minimum profile curvature radius when wherein radius rate=graphite flake does not rupture/graphite flake thickness.
In composite graphite fin of the present invention, described first base film covers the outer surface of described graphite flake, described second base film is arranged on the inner surface of described graphite flake, described second base film and described elastomer use the 4th adhesive layer to be adhesively fixed, described first base film is thicker than described second base film, described first base film thickness is 5 ~ 50 μm, and the second base film thickness is 3 ~ 20 μm.
In composite graphite fin of the present invention, the both ends of at least one in described graphite flake and described elastomer are provided with coating, and described coating uses the one in epoxies, polyurethanes, polythylene resin material.
In composite graphite fin of the present invention, described first base film and described second base film use the one in pet film, polyethylene film, polypropylene film, ethylene-vinyl acetate film, polyvinyl chloride film, Kapton, polyvinylidene chloride film, polyurethane film, polycarbonate film, acrylic resin films material.
In composite graphite fin of the present invention, described elastomer uses the one in polyurethanes, acrylic compounds, neoprene class, ethylene propylene diene rubber class, melamine formaldehyde resin class, silicones class, fluorine type resin and melamine formaldehyde resin class material, or uses the one that with the addition of in polyurethane, acrylic acid, the silicones class of ethylene propylene diene rubber, fluorine type resin and melamine formaldehyde resin class material.
In composite graphite fin of the present invention, described elastomer contains graphite, and the weight of graphite is 7% ~ 10% of described elastomer gross weight.
In composite graphite fin of the present invention, the 5th adhesive layer between described composite graphite fin and thermal source, is used to be adhesively fixed.
In composite graphite fin of the present invention, between described 5th adhesive layer and described thermal source, be provided with mould release membrance.
In composite graphite fin of the present invention, described first adhesive layer, described second adhesive layer, described 3rd adhesive layer, described 4th adhesive layer, described 5th adhesive layer are a jelly, described some jelly is acrylic compounds, silicon class, polyurethanes or fluorine class adhesive, comprises one or more in CNT, carbon, aluminium oxide, metal powder in described some jelly; Or, described jelly of selecting is ethylene-vinyl acetate class, polyisobutene, polyamide-based, PETG class, polypropylene, polyesters, polyurethanes, polyimide or polyethylene hot-melt adhesive stick, comprises one or more in CNT, carbon, aluminium oxide, metal powder in described some jelly.
In composite graphite fin of the present invention, described second adhesive layer, described 3rd adhesive layer, described 4th adhesive layer, described 5th adhesive layer are double faced adhesive tape, and described double faced adhesive tape uses the one in pet film, Kapton, aluminium foil, Copper Foil, graphite material.
Composite graphite fin advantage of the present invention is: using method is simple, can paste the thermal source of electric equipment products etc. easily, thus effectively the heat that the thermal source of electric equipment products etc. produces be diffused to outside rapidly.Meanwhile, composite graphite fin of the present invention can block the source that graphite chip comes off, also can by volume minimization.Therefore, when composite graphite fin is pasted on the thermal source uses such as electric equipment products, electric equipment products is inner or outside to be applied to impact or long-time when using, and also there will not be because small chip comes off accidents such as causing electric equipment products short circuit, fault or fire.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the embodiment of the present invention, below the accompanying drawing used required in describing embodiment is briefly described, apparently, accompanying drawing in the following describes is only one embodiment of the present of invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the perspective view of composite graphite fin of the present invention;
Fig. 2 is the transverse sectional view of composite graphite fin of the present invention;
Fig. 3 is the longitudinal sectional view of composite graphite fin of the present invention;
Fig. 4 is the graphite linings sectional view of composite graphite fin first of the present invention preferred embodiment;
Fig. 5 is the graphite linings sectional view of composite graphite fin second of the present invention preferred embodiment.
Mark in accompanying drawing of the present invention is specific as follows:
100: composite graphite fin 110: elastomer 120: the first base film
130: the second base film 121: the first adhesion layers
132: the first adhesion layer 143: the three adhesion layers
131: the four adhesion layer 160: the five adhesion layers
140: graphite flake 141,142: graphite linings
170: mould release membrance 180: coating
Detailed description of the invention
Below in conjunction with accompanying drawing, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Fig. 1 shows the stereochemical structure of composite graphite fin of the present invention, and composite graphite fin 100 comprises elastomer 110, be arranged at the first base film 120 of described elastomer 110 outer surface and the second base film 130, be arranged at graphite flake 140 between the first base film 120 and the second base film 130.In order to be contacted with thermal source by composite graphite fin 100 more easily, at least one or more surfaces pastes the 5th adhesion layer 160 preferably at composite graphite fin 100, adhesion layer 160 uses some jelly or double faced adhesive tape.Sticker on double faced adhesive tape surface can use acrylic acid (acrylic), silicon, PU(polyurethanes), fluorine type resin material, in order to promote heat conductivility, in these materials, add CNT(CNT), one or more in the material such as carbon, aluminium, metal powder.In order to increase productibility and the heat conductivility of double faced adhesive tape 160, generally using PETG (PET) film, polyamide film, aluminium foil, Copper Foil or graphite flake as base material, carrying out sticker coating on base material two sides.Under the condition not hindering the cohesive force of adhering with thermal source, the thickness of double faced adhesive tape is thinner, and radiating effect is better.
Before adhesion layer 160 and thermal source are pasted, in order to protect adhesion layer 160, outside it, adhering to mould release membrance 170, being namely provided with mould release membrance 170 between adhesion layer 160 and thermal source.
Fig. 2 shows the transverse sectional view of composite graphite fin of the present invention, composite graphite fin 100 comprises elastomer 110 and the graphite flake 140 of winding up outside elastomer 110, graphite flake 140 comprises graphite linings 141, first base film 120, second base film 130, and will play the adhesion layer 121,132,131 of the effect of being adhesively fixed.
The thickness of the first base film 120 is preferably 5 ~ 50 μm.When thickness is less than 5 μm, under the impact of external force, the first base film is easy to damage, thus makes the graphite particle of graphite linings 141 be shed to outside, and then causes the generation of electric equipment products short circuit problem.On the contrary, if thickness is greater than 50 μm, will greatly reduce the heat sinking function of graphite flake.
Second base film 130 is thinner, and its thickness is preferably 3 ~ 20 μm.During with graphite flake winding up elastomer, because the radius of curvature of the second base film 130 is less than the first base film 120, thus the second base film 130 preferably uses thinner thickness.Meanwhile, if the thickness of the second base film is less than 3 μm, film is not easy to operate because of too thin; If the thickness of the second base film is greater than 20 μm, composite graphite fin will be not easy shaping.
Meanwhile, between the first base film 120, second base film 130 and graphite linings 141, adhesion layer 121 and 132 all to be used, thus enhance mechanical strength.The thickness of adhesion layer 121 and 132 is preferably 5 ~ 50 μm, and when being less than 5 μm, viscosity is less, may cause phenomenon of coming unglued; When being greater than 50 μm, heat conduction power will be reduced.
First base film 120 and the second base film 130 generally select PET film, PE(polyethylene) film, PP(polypropylene) film, EVA(ethylene-vinyl acetate copolymer) film, PVC(polyvinyl chloride) film, PI(polyimides) film, PVDC(polyvinylidene chloride) material such as film, polyurethane film, PC film, acrylic acid (acrylic) resin film.
Elastomer 110 specifically can use polyurethanes, acrylic acid (acrylic) class, CR(neoprene) class, EPDM(ethylene propylene diene rubber) resin material such as class, there is the characteristic of porous.Special needs to be pointed out is, the material of elastomer 110 is not limited in this, elastomer 110 can use has resiliency and flexible any material, while there is heat resistance, can the one matter class material such as choice for use silicon, fluororesin, also can use add the compositions such as polyurethane, acrylic acid (acrylic), EPDM silicon, fluororesin solution coating and the compound substance material of vesicular structure that formed.
Elastomer 110 can comprise graphite, and the weight of graphite is 7% ~ 10% of elastomer gross weight.In elastomer resin, the method for admixed graphite is as follows.
First, graphite is dropped in water, with homogenizer, graphite dispersion is become the particle of 200nm ~ 800nm degree size.At this moment, the dispersant that can drop into trace accelerates dispersion.
Then, in order to increase the caking property between graphite and elastomer resin, the sticker of hybrid epoxidized series in the graphite of dispersion, sticker accounts for 1% ~ 3% of elastomer gross weight.
Finally, drying process is carried out after the graphite of dispersion being immersed elastomer resin.
In addition, the thickness of elastomer 110 and size are without any restriction.Preferably determine according to the thickness of graphite flake 140 thickness that elastomer 110 is suitable.
Along with the increase of graphite flake 140 thickness, the minimum profile curvature radius that graphite flake does not occur to rupture increases thereupon accordingly.On elastomer during winding up graphite flake, winding up to be carried out on the elastomer that thickness is greater than graphite flake minimum profile curvature radius, so just can reach the thermolysis of expection.According to the different-thickness of graphite flake, the radius of curvature of the graphite flake vertical direction determined is as shown in the table.
Wherein, radius rate can calculate according to the methods below:
There is not the minimum profile curvature radius (R ruptured in radius rate=graphite flake
min)/graphite flake thickness (t).
As shown in Table, the bending radius rate of graphite flake preferably remains on the scope of 26.7 ~ 52.9.Such as, the thickness of graphite flake 140 is the situation of 250 μm, and the minimum profile curvature radius that graphite flake does not occur to rupture is more than 9mm, and therefore elastomeric thickness at least will at more than 9mm.Under these circumstances, the radius of curvature of elastomer corner angle is preferably at more than 9mm.
Fig. 3 shows the longitudinal sectional view of composite graphite fin of the present invention, and the elastomer 110 of composite graphite fin 100 is almost identical with the width of graphite flake 140.In such structure, elastomer 110 wraps up by graphite flake 140, thus the compression of the volume of elastomer 110 is diminished.And such structure too increases the absolute area of the main material graphite flake 140 that dispels the heat, thus improve radiating efficiency.
At composite graphite fin 100, there are both ends 111 and 112, namely, the two ends of the two ends of elastomer 110 and graphite flake 140 or the two ends of elastomer 110 or graphite flake 140, epoxies, polyurethanes, polythylene resin material is used to carry out coating or infiltration as coating 180 to it, thus avoid the graphite particle peeled off in graphite flake 140 to be shed to the outside of composite graphite fin 100.In addition, when elastomer 110 comprises graphite particle, because the two ends of elastomer 110 111 and 112 scribble the coating 180 of resin material class, thus the graphite particle of elastomer 110 can not drop from composite graphite fin 100.
Fig. 4 shows the graphite flake sectional view of composite graphite fin first of the present invention preferred embodiment, and the first base film 120 is pasted onto the one side of graphite linings 141, and the second base film 130 is pasted onto the another side of graphite linings 141.With reference to figure 2-Fig. 4, the thickness of graphite linings 141 is preferably 10 ~ 500 μm.If the thickness of graphite linings 141 is less than 10 μm, the radiating effect of expection can not be reached; On the contrary, if the thickness of graphite linings 141 is greater than 500 μm, the radius of curvature that graphite flake inside does not occur to rupture will increase greatly, and elastomeric thickness will inevitably increase, thus increases the integral thickness of composite graphite fin.Under such circumstances, composite graphite fin, when being pasted on little and thin electric equipment products, can cause difficulty.
When the thickness of graphite linings 141 is thicker, when the elastomer 110 of winding up graphite linings, graphite linings can because the radius of curvature difference of lateral surface and medial surface causes inner fracture.Under these circumstances, the horizontal heat conduction of graphite linings there will be tomography, thus greatly reduces the horizontal capacity of heat transmission.For preventing fracture from occurring, graphite linings 141 is preferably made up of multilayer.
Fig. 5 shows the graphite flake sectional view of composite graphite fin second of the present invention preferred embodiment, between two graphite linings 141 and 142 of graphite flake, use adhesion layer 143 to paste, adhesion layer 143 uses the sticking double faced adhesive tape put jelly or be all coated with a jelly with two sides between graphite linings 141 and 142, thus forms the sandwich construction of graphite flake.Use the same method, three layers or Multi-layer graphite layer can be formed.Here double faced adhesive tape generally uses one of materials such as comprising PETG (PET) film, polyamide film, aluminium foil, Copper Foil or graphite flake as base film.
Point jelly can use acrylic acid (acrylic) class, silicon class, PU class or fluorine class adhesive, in order to increased thermal conductivity energy, adds one or more in CNT, carbon, aluminium oxide, metal powder in these adhesives; Also can be the hot melt adhesives such as ethylene-vinyl acetate, polyisobutene, polyamide, PETG (PET), polypropylene, polyester, polyurethane, polyimides and polyethylene, in order to strengthen heat conductivity, in these hot melt adhesives, add one or more in CNT, carbon, aluminium oxide, metal powder.Interpolation in adhesive can be combined according to actual conditions, such as, add after CNT can being mixed with metal powder, also can be interpolation after carbon, aluminium oxide, metal powder mixing, the larger heat conductivility of additive ratio is better, but bonding effect declines, can take the circumstances into consideration to add according to the heat conductivility power of the adhesive kind used and needs when using so actual.
Above-mentioned some jelly generally uses sticker, PUR or liquid resin glue.When having a heat resistant requirements to a jelly, need the PUR being used in the above fusing point of uniform temperature.Liquid resin glue preferably uses the sclerosis such as silicones, fluororesin adhesive.
Sticker generally uses acrylic acid (acrylic), silicon, PU, fluorine type resin material.In order to the convenience produced in batches, and in order to improve heat conductivility, using after sticker coating is carried out on the base material two sides such as PET film, polyamide film, aluminium foil, Copper Foil, when having heat resistant requirements, preferably using heat resistance sticker.
PUR generally uses the materials such as ethylene-vinyl acetate, polyisobutene, polyamide, PETG (PET), polypropylene, polyester, polyamide, polyethylene.
When manufacturing PUR and liquid resin glue, add the good metal dusts of heat conductivility such as metal, aluminium, CNT, can increased thermal conductivity energy.PUR without the need to sclerosis and dry run, thus reduces working space, has the advantages that labeling rates is fast.Therefore high speed viscosity glue can realize the automation of production line, the increase of production capacity and processing charges minimizing, thus obtains good economic implications.
Claims (14)
1. a composite graphite fin, is characterized in that, comprises elastomer, is arranged at the first base film of described outer elastomeric surface and the second base film, is arranged at graphite flake between described first base film and described second base film.
2. composite graphite fin according to claim 1, is characterized in that, described graphite flake comprises at least one deck graphite linings, and described graphite flake thickness is 10 ~ 500 μm.
3. composite graphite fin according to claim 2, it is characterized in that, described graphite linings is one deck, uses the first adhesive layer to be adhesively fixed between described first base film and described graphite linings, uses the second adhesive layer to be adhesively fixed between described second base film and described graphite linings.
4. composite graphite fin according to claim 2, it is characterized in that, described graphite linings is multilayer, the 3rd adhesive layer is used to be adhesively fixed described in adjacent two layers between graphite linings, described first base film and described be adhesively fixed after Multi-layer graphite layer between use the first adhesive layer to be adhesively fixed, described second base film and described be adhesively fixed after Multi-layer graphite layer between use the second adhesive layer to be adhesively fixed.
5. composite graphite fin according to claim 1, is characterized in that, described graphite flake radius rate is 26.7 ~ 52.9, minimum profile curvature radius when wherein radius rate=graphite flake does not rupture/graphite flake thickness.
6. composite graphite fin according to claim 1, it is characterized in that, described first base film covers the outer surface of described graphite flake, described second base film is arranged on the inner surface of described graphite flake, described second base film and described elastomer use the 4th adhesive layer to be adhesively fixed, described first base film is thicker than described second base film, and described first base film thickness is 5 ~ 50 μm, and the second base film thickness is 3 ~ 20 μm.
7. composite graphite fin according to claim 1, is characterized in that, the both ends of at least one in described graphite flake and described elastomer are provided with coating, and described coating uses the one in epoxies, polyurethanes, polythylene resin material.
8. composite graphite fin according to claim 1, it is characterized in that, described first base film and described second base film use the one in pet film, polyethylene film, polypropylene film, ethylene-vinyl acetate film, polyvinyl chloride film, Kapton, polyvinylidene chloride film, polyurethane film, polycarbonate film, acrylic resin films material.
9. composite graphite fin according to claim 1, it is characterized in that, described elastomer uses the one in polyurethanes, acrylic compounds, neoprene class, ethylene propylene diene rubber class, melamine formaldehyde resin class, silicones class, fluorine type resin and melamine formaldehyde resin class material, or uses the one that with the addition of in polyurethane, acrylic acid, the silicones class of ethylene propylene diene rubber, fluorine type resin and melamine formaldehyde resin class material.
10. composite graphite fin according to claim 8, is characterized in that, described elastomer contains graphite, and the weight of graphite is 7% ~ 10% of described elastomer gross weight.
11. composite graphite fin according to claim 1, is characterized in that, use the 5th adhesive layer to be adhesively fixed between described composite graphite fin and thermal source.
12. composite graphite fin according to claim 10, is characterized in that, are provided with mould release membrance between described 5th adhesive layer and described thermal source.
13. composite graphite fin according to claim 3,4,6,11,12 any one, it is characterized in that, described first adhesive layer, described second adhesive layer, described 3rd adhesive layer, described 4th adhesive layer, described 5th adhesive layer are a jelly, described some jelly is acrylic compounds, silicon class, polyurethanes or fluorine class adhesive, comprises one or more in CNT, carbon, aluminium oxide, metal powder in described some jelly; Or, described jelly of selecting is ethylene-vinyl acetate class, polyisobutene, polyamide-based, PETG class, polypropylene, polyesters, polyurethanes, polyimide or polyethylene hot-melt adhesive stick, comprises one or more in CNT, carbon, aluminium oxide, metal powder in described some jelly.
14. composite graphite fin according to claim 4,6,11,12 any one, it is characterized in that, described second adhesive layer, described 3rd adhesive layer, described 4th adhesive layer, described 5th adhesive layer are double faced adhesive tape, and described double faced adhesive tape uses the one in pet film, Kapton, aluminium foil, Copper Foil, graphite material.
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| CN201310379106.2A CN104416969A (en) | 2013-08-27 | 2013-08-27 | Composite graphite cooling fin |
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| CN201310379106.2A CN104416969A (en) | 2013-08-27 | 2013-08-27 | Composite graphite cooling fin |
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Cited By (12)
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| CN105163564A (en) * | 2015-08-28 | 2015-12-16 | 努比亚技术有限公司 | Graphite cooling fin and liquid crystal display device |
| CN106131474A (en) * | 2016-07-20 | 2016-11-16 | 湖北誉恒科技有限公司 | Digital video recorder |
| CN107031137A (en) * | 2017-04-01 | 2017-08-11 | 北京空间飞行器总体设计部 | A kind of high heat conduction device and preparation method thereof |
| CN107081953A (en) * | 2017-05-21 | 2017-08-22 | 昆山佑威光电材料有限公司 | A kind of laminating apparatus for heat conduction foam piece |
| CN107946265A (en) * | 2017-12-20 | 2018-04-20 | 上海叹止新材料科技有限公司 | High rebound module pad of a kind of high heat conduction and preparation method and application |
| CN109968756A (en) * | 2019-03-11 | 2019-07-05 | 江苏斯迪克新材料科技股份有限公司 | A kind of carbon-based laminated film of Flexible Displays High Efficiency Thermal management High directional thermal conductivity |
| CN111320946A (en) * | 2020-04-27 | 2020-06-23 | 苏州佳值电子工业有限公司 | Graphite heat dissipation film with multifunctional layer |
| CN111391373A (en) * | 2020-03-25 | 2020-07-10 | 苏州盈顺绝缘材料有限公司 | Production process of GHP heat conduction and dissipation material |
| CN112406213A (en) * | 2020-11-18 | 2021-02-26 | 信骅(上海)器材有限公司 | Continuous production method of highly oriented and high-thickness radiating fin and radiating fin |
| CN112708364A (en) * | 2019-10-25 | 2021-04-27 | 深圳市欣恒坤科技有限公司 | Heat dissipation carbon nanotube for intelligent electronic equipment |
| CN113097604A (en) * | 2021-04-02 | 2021-07-09 | 信骅(上海)器材有限公司 | Special graphene heat dissipation assembly with low thermal resistance, high compressibility and buffering function for electric automobile and preparation method of special graphene heat dissipation assembly |
| CN113759602A (en) * | 2021-09-07 | 2021-12-07 | 京东方科技集团股份有限公司 | Backlight module, display device and display system |
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| CN105163564A (en) * | 2015-08-28 | 2015-12-16 | 努比亚技术有限公司 | Graphite cooling fin and liquid crystal display device |
| CN106131474A (en) * | 2016-07-20 | 2016-11-16 | 湖北誉恒科技有限公司 | Digital video recorder |
| CN107031137A (en) * | 2017-04-01 | 2017-08-11 | 北京空间飞行器总体设计部 | A kind of high heat conduction device and preparation method thereof |
| CN107081953A (en) * | 2017-05-21 | 2017-08-22 | 昆山佑威光电材料有限公司 | A kind of laminating apparatus for heat conduction foam piece |
| CN107946265A (en) * | 2017-12-20 | 2018-04-20 | 上海叹止新材料科技有限公司 | High rebound module pad of a kind of high heat conduction and preparation method and application |
| CN109968756A (en) * | 2019-03-11 | 2019-07-05 | 江苏斯迪克新材料科技股份有限公司 | A kind of carbon-based laminated film of Flexible Displays High Efficiency Thermal management High directional thermal conductivity |
| CN112708364A (en) * | 2019-10-25 | 2021-04-27 | 深圳市欣恒坤科技有限公司 | Heat dissipation carbon nanotube for intelligent electronic equipment |
| CN111391373A (en) * | 2020-03-25 | 2020-07-10 | 苏州盈顺绝缘材料有限公司 | Production process of GHP heat conduction and dissipation material |
| CN111320946A (en) * | 2020-04-27 | 2020-06-23 | 苏州佳值电子工业有限公司 | Graphite heat dissipation film with multifunctional layer |
| CN112406213A (en) * | 2020-11-18 | 2021-02-26 | 信骅(上海)器材有限公司 | Continuous production method of highly oriented and high-thickness radiating fin and radiating fin |
| CN113097604A (en) * | 2021-04-02 | 2021-07-09 | 信骅(上海)器材有限公司 | Special graphene heat dissipation assembly with low thermal resistance, high compressibility and buffering function for electric automobile and preparation method of special graphene heat dissipation assembly |
| CN113759602A (en) * | 2021-09-07 | 2021-12-07 | 京东方科技集团股份有限公司 | Backlight module, display device and display system |
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Application publication date: 20150318 |