CN209515646U - Graphene heat-transfer device - Google Patents
Graphene heat-transfer device Download PDFInfo
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- CN209515646U CN209515646U CN201920339961.3U CN201920339961U CN209515646U CN 209515646 U CN209515646 U CN 209515646U CN 201920339961 U CN201920339961 U CN 201920339961U CN 209515646 U CN209515646 U CN 209515646U
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- folding part
- heat
- graphene
- transfer device
- stepped construction
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Abstract
The utility model discloses a kind of graphene heat-transfer devices, including a successional graphene film, the graphene film is in successional stepped construction, the second folding part that stepped construction includes the first folding part bent to a direction and bends round about, first folding part and the setting of second folding part interval, are in an angle between first folding part and second folding part.The beneficial effect is that it is heat-conducting interface material that this patent, which is using graphene film, and it is provided with successional stepped construction, can compressed, compression ratio reaches 30% or more.Grapheme material heat-conducting effect itself is superior.Product foldable structure can produce any thickness, and can compress, for filling gap.For the thermally conductive sheet of traditional graphite material, the thermally conductive sheet of graphite material can not be folded, and can be broken after folding, but the graphene film of the utility model can be folded, and will not influence its heat transfer property.Folded stepped construction has certain compression ratio simultaneously, can also more easily be suitable for the gap filling of different-thickness.
Description
Technical field
The utility model relates to electronics industry, the conduction heat transfer technical field of electronic component, in particular to a kind of graphite
Alkene heat-transfer device.
Background technique
Electronic equipment used in daily life has a large amount of using the semiconductor components and devices for needing to be driven by electricity.When
When these electronic products work, largely failed in the electric energy of consumption really for for equipment operation, the major part of loss
Electric energy follow Thermodynamic Law and be converted into thermal energy, and be dispersed into the air of surrounding.With electronics market high-performance, more
Function and lightening trend, electronic product of today is also higher to power consumption requirements, and the heat generated at the same time is also more and more.
With the micromation multifunction of electronic product, the heat-dense degree generated is higher and higher, is increasingly not easy to shed.Mesh
Preceding electronic equipment reaches the diffusion of heat source usually using air-cooled component, water cooling component and thermal interfacial material and structure and conduction is made
With.
Air-cooled component and water cooling component are that large electric appliances equipment uses, and heat dissipation effect is obvious, but bulky cannot use
In the use of micromodule equipment and portable communication electronic equipment.
Thermal interfacial material is small in size frivolous.It is mainly used for small electronic equipment heat dissipation, main Types have:
One kind is heat-conducting silicon rubber, heat conductive silica gel, heat-conducting silicone grease；The disadvantage is that the poor material conducts heat rate highest of heating conduction
The upper limit can only accomplish 15W or so.
Second class is graphite heat-conducting fin, and heating conduction can achieve 1200~1500W, and heat-conducting effect is superior.Disadvantage material
Thickness is fixed from compression, cannot effectively fill for the manufacture gap of compact-sized sophisticated electronics component.
Utility model content
The purpose of the utility model is to provide a kind of scheme, one or more in above-mentioned prior art problem can solve
It is a.
One aspect according to the present utility model, provides graphene heat-transfer device, including a successional graphene is thin
Film, the graphene film be in successional stepped construction, stepped construction include to a direction bend the first folding part and
The second folding part bent round about, first folding part and the setting of second folding part interval, first folding
It is in an angle between folded portion and second folding part.
The beneficial effect is that it is heat-conducting interface material that this patent, which is using graphene film, and it is provided with successional
Stepped construction can be compressed, and compression ratio reaches 30% or more.Grapheme material heat-conducting effect itself is superior.Product foldable structure,
It can produce any thickness, and can compress, for filling gap.
For the thermally conductive sheet of traditional graphite material, the thermally conductive sheet of graphite material can not be folded, and can be sent out after folding
Raw fracture, but the graphene film of the utility model can be folded, and will not influence its heat transfer property.It folds simultaneously
Stepped construction afterwards has certain compression ratio, can also more easily be suitable for the gap filling of different-thickness.
In some embodiments, thickness 0.01mm~1mm of the graphene film.
In some embodiments, the size of the angle is between 0-180 degree.
In some embodiments, the first folding part and the second folding part of at least three pieces continuous adjacent constitute " N " type knot
Structure.
In some embodiments, the first folding part and the second folding part of at least four continuous adjacents constitute " M " type knot
Structure.
In some embodiments, described that there is elasticity in its longitudinal direction in successional stepped construction.
In some embodiments, foldable formed graphene heat-transfer device both ends are fitted with adhesive tape.
In some embodiments, the thermal coefficient of the graphene heat-transfer device is 1500~2000W.
The utility model additionally provides a kind of preparation method of graphene heat-transfer device, includes the following steps:
Step S1: prepare graphene thermally conductive film material；
Step S2: graphene diaphragm is cut into the size of needs；
Step S3: folding die is utilized, by the material cut according to the size folding forming of design；
At the same time it can also again including step S4: foldable formed graphene semi-finished product, both ends joint adhesive band are fixed into folding
Shape.
The beneficial effect is that itself has certain elasticity, the glue being bonded using both ends after graphene folding forming
Band is fixed, and entire graphene heat-transfer device can be allowed to maintain collapsed shape.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of graphene heat-transfer device of one embodiment of the utility model；
Fig. 2 is a kind of structural schematic diagram of graphene heat-transfer device of the another embodiment of the utility model；
Fig. 3 is a kind of application schematic diagram of graphene heat-transfer device of one embodiment of the utility model；
Fig. 4 is the structural schematic diagram of the graphene heat-transfer device both ends joint adhesive band of one embodiment of the utility model；
Fig. 5 is the graphene heat-transfer device preparation method flow diagram of one embodiment of the utility model.
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawing.
Fig. 1 to Fig. 5 schematically shows a kind of a kind of thermally conductive dress of graphene of embodiment according to the present utility model
Set and preparation method thereof.As shown in Figure 1, 2, one aspect according to the present utility model provides graphene heat-transfer device, including
One successional graphene film 1, the graphene film are in successional stepped construction, and stepped construction includes to a direction
First folding part 2 of bending and the second folding part 3 bent round about, first folding part 2 and described second fold
The setting of the interval of portion 3 is in an angle a between first folding part and second folding part.
It is heat-conducting interface material that this patent, which is using graphene film, and is provided with successional stepped construction, can be with
Compression, compression ratio reach 30% or more.Grapheme material heat-conducting effect itself is superior.Product foldable structure can produce any
Thickness, and can compress, for filling gap.
For the thermally conductive sheet of traditional graphite material, the thermally conductive sheet of graphite material can not be folded, and can be sent out after folding
Raw fracture, but the graphene film of the utility model can be folded, and will not influence its heat transfer property.It folds simultaneously
Stepped construction afterwards has certain compression ratio, can also more easily be suitable for the gap filling of different-thickness.
In the utility model, graphene film be it is successional, do not fracture.It can be more fully long using graphene
The heating conduction of wide direction, because heating conduction of the graphene film in length-width direction is far longer than graphene film in thickness
Heating conduction on direction.Heating conduction of the graphene film in length-width direction can achieve 1500W, and on its thickness direction
Heating conduction be only 30W or so.
Wherein, the thickness of graphene film can be with 0.01mm~1mm.
Wherein, the size of angle a can fold use between 0-180 degree between the first folding part and the second folding part.
A kind of embodiment as shown in Figure 1, at least the first folding part 2 and the second folding part 3 of three pieces continuous adjacent are constituted
" N " type structure.
Another embodiment as shown in Figure 2,3 structure of the first folding part 2 and the second folding part of at least four continuous adjacents
At " M " type structure.
N-type and M type in the utility model, do not limit direction, only according to the drafting side of the embodiment shown in that figure
To respective description is carried out, similar N type junction structure rotates, as Z-shaped structure after being rotated by 90 °.Only with the placement of product
Directional correlation.
In the utility model, there is elasticity in its longitudinal direction in successional stepped construction.Wherein length direction
Refer to stepped construction in continuous folding process, width be to maintain it is constant, but its along fold advance direction,
Its length direction can constantly increase, but corresponding angle can change, so in successional stepped construction at it
There is elasticity on length direction, to have certain compression ratio, can also more easily be filled out suitable for the gap of different-thickness
It fills.
As shown in figure 3, be a kind of application of the utility model, it is practical new by this between heating device 4 and radiating element 5
The graphene heat-transfer device of type is attached.The heat that heating device 4 generates quickly is transmitted to by graphene heat-transfer device
In radiating element 5.
This patent uses graphene film 1 as basic material, and graphene film has very outstanding heat-conducting effect.It can
The heat of heating device is shifted rapidly diffusion, to reduce component fever bring loss.In addition the stacking of this patent
Structure allows this product to be used in compact-sized environmental applications.
This application is particularly suitable for many close shape electronic equipments, because tight type electronic equipment is all multilayer component
Overlaying structure, every layer of component can all have thickness deviation, so the gap thickness of heat transfer layer is uncertain, but cooling requirements conduct heat
Layer will be in close contact the maximum heat dissipation effect of competence exertion with heating device and radiating element, and the graphene of the utility model is thermally conductive
The compressibility of device and certain elasticity can just generate advantage, can be in close contact with heating element, adequately by heat
It is transmitted to radiating element.
The thermal coefficient of the graphene heat-transfer device of the utility model can achieve 1500~2000W.
As shown in figure 4, foldable formed graphene heat-transfer device both ends are fitted with adhesive tape.Entire graphene can be allowed thermally conductive
Device maintains collapsed shape.
As shown in figure 5, the utility model additionally provides a kind of preparation method of graphene heat-transfer device, including walk as follows
It is rapid:
Step S1: prepare graphene thermally conductive film material；
Step S2: graphene diaphragm is cut into the size of needs；
Step S3: folding die is utilized, by the material cut according to the size folding forming of design；
Step S4: foldable formed graphene semi-finished product, both ends joint adhesive band are fixed into collapsed shape.
After graphene folding forming, itself has certain elasticity, is fixed using the adhesive tape that both ends are bonded, Ji Kerang
Entire graphene heat-transfer device maintains collapsed shape.What entire radiator used is exactly grapheme material.Due to graphene material
Material has good toughness, and folding will not fracture, so the product can play thermally conductive function.
The above are merely some embodiments of the utility model.For those of ordinary skill in the art, not
Under the premise of being detached from the concept of the present invention, various modifications and improvements can be made, these belong to the utility model
Protection scope.
Claims (8)
1. graphene heat-transfer device, which is characterized in that including a successional graphene film, the graphene film is in continuous
Property stepped construction, the second folding that stepped construction includes the first folding part bent to direction and bends round about
Portion, first folding part and the setting of second folding part interval, between first folding part and second folding part
In an angle.
2. graphene heat-transfer device according to claim 1, which is characterized in that the thickness 0.01mm of the graphene film
~1mm.
3. graphene heat-transfer device according to claim 1, which is characterized in that the size of the angle be 0-180 degree it
Between.
4. graphene heat-transfer device according to claim 1, which is characterized in that at least the first of three pieces continuous adjacent folds
Portion and the second folding part constitute " N " type structure.
5. graphene heat-transfer device according to claim 1, which is characterized in that the first of at least four continuous adjacents folds
Portion and the second folding part constitute " M " type structure.
6. graphene heat-transfer device according to claim 1, which is characterized in that described is in successional stepped construction at it
There is elasticity on length direction.
7. graphene heat-transfer device according to claim 1, which is characterized in that the thermally conductive system of the graphene heat-transfer device
Number is 1500~2000W.
8. graphene heat-transfer device according to claim 1, which is characterized in that paste at the both ends of the graphene heat-transfer device
Conjunction has adhesive tape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920339961.3U CN209515646U (en) | 2019-03-18 | 2019-03-18 | Graphene heat-transfer device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920339961.3U CN209515646U (en) | 2019-03-18 | 2019-03-18 | Graphene heat-transfer device |
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| CN209515646U true CN209515646U (en) | 2019-10-18 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109887897A (en) * | 2019-03-18 | 2019-06-14 | 苏州领裕电子科技有限公司 | Graphene heat-transfer device and preparation method thereof |
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2019
- 2019-03-18 CN CN201920339961.3U patent/CN209515646U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109887897A (en) * | 2019-03-18 | 2019-06-14 | 苏州领裕电子科技有限公司 | Graphene heat-transfer device and preparation method thereof |
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