CN207491443U - A kind of composite heat-conducting graphite flake - Google Patents

Abstract

The utility model is related to graphite flake technical fields,More particularly to a kind of composite heat-conducting graphite flake,Including graphite flake main body,Heat-conducting layer and thermal insulation layer,The graphite flake main body upper end is provided with heat-conducting layer,The graphite flake main body lower end is provided with thermal insulation layer,The graphite flake main body includes outer layer,Middle layer and internal layer,The middle layer, which is wrapped up in, to be located on internal layer outer end face,The outer layer, which is wrapped up in, to be located on middle layer outer end face,The outer layer includes protective layer and heat-sink shell,The protective layer is located on heat-sink shell upper surface,The middle layer includes heat insulation layer and anti-deformation layer,The heat insulation layer is located on anti-deformation layer upper surface,The internal layer includes anti-corrosion layer and waterproof layer,The anti-corrosion layer is located on waterproof layer upper surface,The utility model is convenient for orientation heat conduction,And shelf life is long,It is simple in structure,It is at low cost,Convenient for being widely used.

Description

A kind of composite heat-conducting graphite flake

Technical field

The utility model is related to graphite flake technical fields, and in particular to a kind of composite heat-conducting graphite flake.

Background technology

As modern microelectronic technology high-speed develops, electronic equipment（Such as laptop, mobile phone, tablet computer）Increasingly Become ultra-thin, light, this structure causes electronic equipment internal power density to significantly improve, and generated heat is not easy in operation It discharges, be easy to accumulate rapidly and form high temperature.On the other hand, high temperature can reduce the performance of electronic equipment, reliability and using the longevity Life.Therefore, Current electronic industry proposes increasingly higher demands for the heat sink material as heat control system core component, urgently A kind of high-efficiency heat conduction, light material is needed to transfer heat away from rapidly, ensures electronic equipment normal operation.

Conductive graphite piece is a kind of completely new heat conduction and heat radiation material, has unique crystal grain orientation, in both directions uniformly Heat conduction, laminar structured to be well adapted for any surface, shielding heat source is with improving consumer electronics product while component Performance, product Homogeneouslly-radiating while also provides in terms of thickness to be thermally isolated.Kapton is mostly used in the prior art Flexible PCB although having using polyimide film sintered acquisition graphite heat radiation fin, so as to be covered on heat source, is limited In Kapton product quality and performances it is very different, influenced the performance of the two-sided pad pasting heat dissipation performance of heat dissipation, There are following technical problems：It radiates uneven, hot-spot easily occurs, the heat dissipation performance for improving product is unstable, reliability Poor performance is unfavorable for product quality management control, influences the competitiveness of product.

Utility model content

In view of the deficienciess of the prior art, the utility model aim is to provide a kind of composite heat-conducting graphite flake, to solve The problems mentioned above in the background art, the utility model is easy to use, easy to operate, and systematicness is high, highly practical.

To achieve the above object, the utility model provides following technical solution：

A kind of composite heat-conducting graphite flake, including graphite flake main body, heat-conducting layer and thermal insulation layer, the graphite flake main body upper end Be provided with heat-conducting layer, the graphite flake main body lower end is provided with thermal insulation layer, the graphite flake main body include outer layer, middle layer and Internal layer, the middle layer, which is wrapped up in, to be located on internal layer outer end face, and the outer layer, which is wrapped up in, to be located on middle layer outer end face, and the outer layer includes protecting Sheath and heat-sink shell, the protective layer are located on heat-sink shell upper surface, and the middle layer includes heat insulation layer and anti-deformation layer, The heat insulation layer is located on anti-deformation layer upper surface, and the internal layer includes anti-corrosion layer and waterproof layer, the anti-corrosion layer position In on waterproof layer upper surface.

Further, the heat-conducting layer edge is pasted with phosphor strip.

Further, the heat-conducting layer upper end is provided with pattern layer.

Further, the outer layer thickness is 0.1-0.2mm.

Further, the intermediate layer thickness is 0.3-0.4mm.

Further, the internal layer thickness is 0.5-7mm.

Further, the heat conduction layer thickness is 0.5-0.6mm.

Further, the insulation thickness is 0.6-0.7mm.

Further, the protective layer material is strands.

Further, the anti-deformation layer material is polyester fiber.

Further, the thermal insulation layer is foamed resin layer.

Further, the heat-conducting layer is silica gel.

Further, the material of the anti-corrosion layer is polytetrafluoroethylene (PTFE).

Further, the material of the waterproof layer is polyurethane water-proof paint.

Further, the material of the protective layer is baking vanish.

Compared with prior art, the beneficial effects of the utility model are：Because the utility model is added to protective layer, the design Reached and graphite flake body interior protected, improve graphite flake main body service life, because the utility model be added to it is anti- Water layer, which can carry out waterproof to graphite flake body interior, improve the service life of graphite flake main body, because this practicality is new Type is added to anti-corrosion layer, which can improve the corrosion resistance of graphite flake main body, solves traditional graphite flake main body Poor corrosion resistance in the normal time in use, inside is susceptible to corrosion, influences its working performance, because the utility model is added to Anti-deformation layer, the design improve the automatic recovery capability of graphite flake body contours, because the utility model be added to heat-conducting layer with And thermal insulation layer, the design is convenient for being oriented heat conduction, and because the utility model is added to pattern layer, which increases this The aesthetics of utility model, because the utility model is added to phosphor strip, the design is new to this practicality at night convenient for staff Type is used, the utility model good heat conductivity, and service life is long.

Description of the drawings

Fig. 1 is the structure diagram of the utility model.

Fig. 2 is the structure diagram of graphite flake main body in the utility model.

Fig. 3 is the structure diagram of outer layer in the utility model.

Fig. 4 is structure diagram intermediate in the utility model.

Fig. 5 is the structure diagram of internal layer in the utility model.

In reference numeral：1. graphite flake main body；2. heat-conducting layer；3. thermal insulation layer；4. phosphor strip；5. pattern layer；11. outer layer； 12. middle layer；13. internal layer；111. protective layer；112. heat-sink shell；121. heat insulation layer；122. anti-deformation layer；131. anti-corrosion layer； 132. waterproof layer.

Specific embodiment

The following is a combination of the drawings in the embodiments of the present utility model, and the technical scheme in the embodiment of the utility model is carried out It clearly and completely describes, it is clear that the described embodiments are only a part of the embodiments of the utility model rather than whole Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are without making creative work The all other embodiment obtained, shall fall within the protection scope of the present invention.

- 5 are please referred to Fig.1, a kind of composite heat-conducting graphite flake, including graphite flake main body 1, heat-conducting layer 2 and thermal insulation layer 3, stone 1 upper end of ink sheet main body is provided with heat-conducting layer 2, and 1 lower end of graphite flake main body is provided with thermal insulation layer 3；Graphite flake main body 1 includes outer layer 11st, middle layer 12 and internal layer 13, middle layer 12, which is wrapped up in, to be located on 13 outer end face of internal layer, and outer layer 11, which is wrapped up in, is located at 12 outer end face of middle layer On；Outer layer 11 includes protective layer 111 and heat-sink shell 112, and protective layer 111 is located on 112 upper surface of heat-sink shell；Middle layer 12 is wrapped Heat insulation layer 121 and anti-deformation layer 122 are included, heat insulation layer 121 is located on 122 upper surface of anti-deformation layer；Internal layer 13 includes corrosion-resistant Layer 131 and waterproof layer 132, anti-corrosion layer 131 are located on 132 upper surface of waterproof layer.

Preferably, 11 thickness of outer layer is 0.1-0.2mm, and 12 thickness of middle layer is 0.3-0.4mm, and 13 thickness of internal layer is 0.5- 7mm, 2 thickness of heat-conducting layer are 0.5-0.6mm, and 3 thickness of thermal insulation layer is 0.6-0.7mm, and 2 edge of heat-conducting layer is pasted with phosphor strip 4, leads 2 upper end of thermosphere is provided with pattern layer 5, and 111 material of protective layer is strands, and 122 material of anti-deformation layer is polyester fiber, thermal insulation layer 3 For foamed resin layer, heat-conducting layer 2 is silica gel, and the material of anti-corrosion layer 131 is polytetrafluoroethylene (PTFE), and the material of waterproof layer 132 is poly- Urethane water-repellent paint, the material of protective layer 111 is baking vanish.

When the utility model at work：When heat enters graphite flake main body 1 by heat-conducting layer 2, due to heat insulation layer 121 In the presence of, prevent heat from entering inside graphite flake main body 1, so as to avoid high heat to being damaged inside graphite flake main body 1, and And due to the presence of thermal insulation layer 3, prevent heat from from 1 lower conductive of graphite flake main body, so as to be conducted from edge, it is fixed to realize To the effect of heat conduction, because the utility model is added to protective layer 111, which has reached to being protected inside graphite flake main body 1 Shield improves the service life of graphite flake main body 1, and because the utility model is added to waterproof layer 132, which can be to graphite flake master 1 inside of body carries out waterproof, improves the service life of graphite flake main body 1, should because the utility model is added to anti-corrosion layer 131 Design can improve the corrosion resistance of graphite flake main body 1, solve traditional 1 poor corrosion resistance of graphite flake main body, when normal Between in use, inside is susceptible to corrosion, influence its working performance, because the utility model is added to anti-deformation layer 122, the design The automatic recovery capability of 1 shape of graphite flake main body is improved, because the utility model is added to heat-conducting layer 2 and thermal insulation layer 3, this sets Meter is convenient for being oriented heat conduction, the utility model good heat conductivity, and service life is long.

The basic principle of the utility model and main feature and the advantages of the utility model has been shown and described above, for For those skilled in the art, it is clear that the utility model is not limited to the details of above-mentioned exemplary embodiment, and without departing substantially from this In the case of the spirit or essential attributes of utility model, the utility model can be realized in other specific forms.Therefore, no matter From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the utility model is by institute Attached claim rather than above description limit, it is intended that will fall within the meaning and scope of the equivalent requirements of the claims All changes are embraced therein.Any reference numeral in claim should not be considered as to the involved right of limitation It is required that.

While there has been shown and described that the embodiment of the utility model, for the ordinary skill in the art, It is appreciated that can these embodiments be carried out with a variety of variations in the case of the principle and spirit for not departing from the utility model, repaiied Change, replace and modification, the scope of the utility model are defined by the appended claims and the equivalents thereof.

Claims (8)

1. a kind of composite heat-conducting graphite flake, it is characterised in that：Including graphite flake main body（1）, heat-conducting layer（2）And thermal insulation layer（3）, The graphite flake main body（1）Upper end is provided with heat-conducting layer（2）, the graphite flake main body（1）Lower end is provided with thermal insulation layer（3）；Institute State graphite flake main body（1）Including outer layer（11）, middle layer（12）And internal layer（13）, the middle layer（12）It wraps up in and is located at internal layer （13）On outer end face, the outer layer（11）It wraps up in and is located at middle layer（12）On outer end face；The outer layer（11）Including protective layer（111） And heat-sink shell（112）, the protective layer（111）Positioned at heat-sink shell（112）On upper surface；The middle layer（12）Including thermal insulation Layer（121）And anti-deformation layer（122）, the heat insulation layer（121）Positioned at anti-deformation layer（122）On upper surface；The internal layer （13）Including anti-corrosion layer（131）And waterproof layer（132）, the anti-corrosion layer（131）Positioned at waterproof layer（132）Upper surface On.

2. a kind of composite heat-conducting graphite flake according to claim 1, it is characterised in that：The heat-conducting layer（2）It pastes at edge There is phosphor strip（4）.

3. a kind of composite heat-conducting graphite flake according to claim 1, it is characterised in that：The heat-conducting layer（2）Upper end is set There is pattern layer（5）.

4. a kind of composite heat-conducting graphite flake according to claim 1, it is characterised in that：The outer layer（11）Thickness is 0.1- 0.2mm。

5. a kind of composite heat-conducting graphite flake according to claim 1, it is characterised in that：The middle layer（12）Thickness is 0.3-0.4mm。

6. a kind of composite heat-conducting graphite flake according to claim 1, it is characterised in that：The internal layer（13）Thickness is 0.5- 7mm。

7. a kind of composite heat-conducting graphite flake according to claim 1, it is characterised in that：The heat-conducting layer（2）Thickness is 0.5-0.6mm。

8. a kind of composite heat-conducting graphite flake according to claim 1, it is characterised in that：The thermal insulation layer（3）Thickness is 0.6-0.7mm。