CN212864650U - Combined type graphite alkene heat dissipation membrane - Google Patents
Combined type graphite alkene heat dissipation membrane Download PDFInfo
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- CN212864650U CN212864650U CN202021593665.5U CN202021593665U CN212864650U CN 212864650 U CN212864650 U CN 212864650U CN 202021593665 U CN202021593665 U CN 202021593665U CN 212864650 U CN212864650 U CN 212864650U
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Abstract
The utility model provides a composite graphene heat dissipation film, which comprises a heat dissipation film body, a first heat dissipation layer and two second heat dissipation layers, wherein the first heat dissipation layer and the two second heat dissipation layers are arranged on the heat dissipation film body; the two second heat dissipation layers are respectively arranged at the left end and the right end of the heat dissipation film body, and each second heat dissipation layer completely covers the left end face and the right end face of the heat dissipation film body; the heat dissipation film body sequentially comprises a buffer layer, a second heat conduction layer, a graphene layer, a first heat conduction layer, a heat conduction insulation layer and a fixing layer from top to bottom, and a sawtooth-shaped copper foil is arranged in the buffer layer; heat conducting silica gel is filled in the first heat conducting layer and the second heat conducting layer; graphene powder is filled in the graphene layer, and a plurality of miniature copper pipes are uniformly arranged in the graphene layer; a plurality of heat dissipation plates are arranged on the first heat dissipation layer; the surface of the second heat dissipation layer far away from the heat dissipation film body is in a sawtooth shape. The utility model discloses convenient to use, heat conductivility is strong, and the radiating effect is good, convenient to popularize and use.
Description
Technical Field
The utility model relates to a heat radiation material technical field specifically is a combined type graphite alkene heat dissipation membrane.
Background
With the rapid development of modern technologies, the miniaturization of electronic devices, the increasing of the dominant frequency of chips, the increasing of functions, and the gradual increase of the power consumption of a single chip all result in the rapid increase of heat flux density. Studies have shown that over 55% of electronic devices fail due to excessive temperatures, and thus the heat dissipation problem of electronic devices plays a significant role in the development of electronic devices.
At present, most of graphene is used as a material to serve as a heat dissipation material, the graphene is a two-dimensional crystal, common graphite of people is formed by stacking planar carbon atoms which are orderly arranged in a honeycomb shape layer by layer, the interlayer acting force of the graphite is weak, the graphite is easy to mutually peel to form a thin graphite sheet, after the graphite sheet is peeled into a single layer, the single layer with the thickness of only one carbon atom is the graphene, the latest discovery of the graphene is the most effective method for people in the aspect of corrosion resistance, a common polymer coating is easy to scratch, the protection performance is reduced, the graphene is used as a protection film, the corrosion speed of metal is remarkably delayed, the graphene is firmer and more resistant to damage, the graphene is not only a new star in the electronic industry, and can not be limited in the application direction of the traditional industry, the fields of ocean corrosion resistance, metal corrosion resistance, heavy corrosion resistance and the like, however, the flexible graphene heat dissipation film developed and produced by utilizing the graphene can help the existing notebook computer, smart phone, LED display screen and the like, the graphene can help to greatly improve the heat dissipation performance, the graphene has very good heat conduction performance, strength, flexibility, electric conduction, heat conduction and optical characteristics, the graphene is one of the materials with the highest known strength at present, meanwhile, the graphene has very good toughness and can be bent, the common powder production method of the graphene is a mechanical stripping method, an oxidation-reduction method and a SiC epitaxial growth method, and the film production method is a chemical vapor deposition method.
The graphene processing film is used for improving the heat dissipation performance of an electronic product, the existing graphene heat dissipation film cannot meet the requirements of users, the heat dissipation effect is not good, and the use of the users is inconvenient.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to overcome current defect, provide a combined type graphite alkene heat dissipation membrane to solve the not good shortcoming of radiating effect in the above-mentioned technical background.
In order to achieve the above object, the utility model provides a following technical scheme: a composite graphene heat dissipation film comprises a heat dissipation film body, a first heat dissipation layer and two second heat dissipation layers, wherein the first heat dissipation layer and the two second heat dissipation layers are arranged on the heat dissipation film body; the two second heat dissipation layers are respectively arranged at the left end and the right end of the heat dissipation film body, and each second heat dissipation layer completely covers the left end face and the right end face of the heat dissipation film body;
the heat dissipation film body sequentially comprises a buffer layer, a second heat conduction layer, a graphene layer, a first heat conduction layer, a heat conduction insulation layer and a fixing layer from top to bottom, wherein a sawtooth-shaped copper foil is arranged in the buffer layer; heat-conducting silica gel is filled in the first heat-conducting layer and the second heat-conducting layer, and the contact surfaces of the first heat-conducting layer and the second heat-conducting layer and the graphene layer are both in a sawtooth shape; graphene powder is filled in the graphene layer, and a plurality of miniature copper pipes are uniformly arranged in the graphene layer;
a plurality of heat dissipation plates are arranged on the first heat dissipation layer; the plurality of heat dissipation plates are uniformly arranged on the upper surface of the first heat dissipation layer, and each heat dissipation plate is perpendicular to the first heat dissipation layer;
the surface of the second heat dissipation layer, which is far away from the heat dissipation film body, is in a sawtooth shape.
Preferably, a heat conduction glue is arranged in the fixing layer; and the heat-conducting insulating layer is internally filled with heat-conducting filling glue.
Preferably, a release film is arranged on the lower surface of the fixing layer.
Preferably, a plurality of miniature copper pipes wear to locate in graphite alkene layer, and a plurality of miniature copper pipe both ends respectively with two-layer second heat dissipation layer fixed connection.
Preferably, an antistatic coating is arranged on the upper surface of the first heat dissipation layer.
Preferably, the heat dissipation plate is made of a copper sheet.
Compared with the prior art, the utility model provides a combined type graphite alkene heat dissipation membrane possesses following beneficial effect:
the heat dissipation film body sequentially comprises a buffer layer, a second heat conduction layer, a graphene layer, a first heat conduction layer, a heat conduction insulating layer and a fixing layer from top to bottom, the buffer layer, the second heat conduction layer, the graphene layer, the first heat conduction layer, the heat conduction insulating layer and the fixing layer are combined to increase the heat dissipation effect, the two second heat dissipation layers are respectively arranged at the left end and the right end of the heat dissipation film body, each second heat dissipation layer completely covers the left end surface and the right end surface of the heat dissipation film body, the contact area between the heat dissipation film body and air is increased, the heat dissipation efficiency is accelerated, graphene powder is filled in the graphene layer, and a plurality of micro copper pipes are uniformly arranged in the graphene layer, so that partial heat in graphene is directly transferred from the micro copper; the surface of the second heat dissipation layer far away from the heat dissipation film body is in a sawtooth shape, and the contact area with air is increased due to the fact that the plurality of heat dissipation plates are arranged on the first heat dissipation layer, and the heat dissipation effect is further improved.
Drawings
The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention,
in the drawings:
fig. 1 is a schematic view of a cross-sectional structure of a composite graphene heat dissipation film provided by the present invention;
fig. 2 is a schematic structural view of a first heat dissipation layer provided by the present invention;
fig. 3 is a schematic diagram of the cross-sectional structure of the graphene layer according to the present invention.
In the figure: 1. the fixed layer, 2, heat conduction insulation layer, 3, first heat-conducting layer, 4, graphite alkene layer, 5, second heat-conducting layer, 6, buffer layer, 7, first heat dissipation layer, 8, heating panel, 9, second heat dissipation layer, 10, miniature copper pipe, 11, from the type membrane.
Detailed Description
In order to make the technical means, the creation features, the achievement purposes and the functions of the present invention easy to understand, the present invention will be further explained below with reference to the following embodiments and the accompanying drawings, but the following embodiments are only preferred embodiments of the present invention, and not all embodiments are included. Based on the embodiments in the implementation, other embodiments obtained by those skilled in the art without any creative work belong to the protection scope of the present invention.
Referring to fig. 1-3, the present invention provides a composite graphene heat dissipation film, which comprises: a composite graphene heat dissipation film comprises a heat dissipation film body, a first heat dissipation layer 7 and two second heat dissipation layers 9, wherein the first heat dissipation layer 7 is arranged on the upper surface of the heat dissipation film body; the two second heat dissipation layers 9 are respectively arranged at the left end and the right end of the heat dissipation film body, and each second heat dissipation layer 9 completely covers the left end face and the right end face of the heat dissipation film body;
the heat dissipation film body sequentially comprises a buffer layer 6, a second heat conduction layer 5, a graphene layer 4, a first heat conduction layer 3, a heat conduction insulation layer 2 and a fixing layer 1 from top to bottom, a sawtooth-shaped copper foil is arranged in the buffer layer 6, two ends of the copper foil are fixedly connected with the two second heat dissipation layers respectively, and the sawtooth-shaped copper foil can play a certain role in heat dissipation and buffering; the heat conducting silica gel is filled in the first heat conducting layer 3 and the second heat conducting layer 5 to increase the heat conductivity, and the contact surfaces of the first heat conducting layer 3 and the graphene layer 4 and the second heat conducting layer 5 are both in a zigzag shape, so that the contact area is increased; graphene powder is filled in the graphene layer 4, and a plurality of miniature copper pipes 10 are uniformly arranged in the graphene layer 4, so that the heat dissipation performance is further improved;
a plurality of heat dissipation plates 8 are arranged on the first heat dissipation layer 7; the plurality of heat dissipation plates 8 are uniformly arranged on the upper surface of the first heat dissipation layer 7, and each heat dissipation plate 8 is perpendicular to the first heat dissipation layer 7, so that the contact area with air is increased, and the heat dissipation efficiency is improved;
the surface of the second heat dissipation layer 9 far away from the heat dissipation film body is in a sawtooth shape, so that the contact area with air is increased.
Heat conduction glue is arranged in the fixed layer 1; and the heat conduction insulating layer 2 is filled with heat conduction filling glue.
The lower surface of the fixed layer 1 is provided with a release film 11.
A plurality of miniature copper pipes 10 wear to locate in graphite alkene layer 4, and a plurality of miniature copper pipes 10 both ends respectively with two-layer second heat dissipation layer 9 fixed connection.
An anti-static coating is arranged on the upper surface of the first heat dissipation layer 7, and the anti-static coating is a polycarbonate coating, so that dust is prevented from being accumulated on the surface area of the heat dissipation film body.
The heat sink 8 is made of copper sheet, and has high thermal conductivity.
The utility model discloses a theory of operation and use flow: when in use, the composite graphene heat dissipation film is adhered on a heating part, firstly the release film 11 is torn off, then the heat dissipation film body is adhered on the heating part through the heat conduction adhesive tape arranged on the fixing layer 1, at the moment, the heat generated by the heating part firstly passes through the heat conduction filling adhesive arranged on the heat conduction insulating layer 2, and then is dissipated through the graphene powder arranged in the graphene layer 4 arranged between the first heat conduction layer 3 and the second heat conduction layer 5, the miniature copper pipe 10 is arranged in the graphene layer 4 in a penetrating way, and the two ends of the miniature copper pipe 10 are connected with the second heat dissipation layer 9 for further heat dissipation, the contact surfaces of the first heat conduction layer 3 and the second heat conduction layer 5 and the graphene layer 4 are in a zigzag shape, so that the contact area for heat dissipation of the graphene is enlarged, the heat dissipation of the graphene can be accelerated, the heat dissipation efficiency is increased, in addition, the wave-shaped copper foil further plays a role in heat dissipation, the first heat dissipation layer 7 is provided with the heat dissipation plate 8, so that the contact area of the first heat dissipation layer and air is increased, and the heat dissipation effect of the heat dissipation film body is improved.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the description in the above embodiments and the description is only preferred examples of the present invention, and is not intended to limit the present invention, and that the present invention can have various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications all fall into the scope of the claimed invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (6)
1. The composite graphene heat dissipation film is characterized by comprising a heat dissipation film body, a first heat dissipation layer (7) and two second heat dissipation layers (9), wherein the first heat dissipation layer (7) and the two second heat dissipation layers are arranged on the heat dissipation film body; the two second heat dissipation layers (9) are respectively arranged at the left end and the right end of the heat dissipation film body, and each second heat dissipation layer (9) completely covers the left end face and the right end face of the heat dissipation film body;
the heat dissipation film body sequentially comprises a buffer layer (6), a second heat conduction layer (5), a graphene layer (4), a first heat conduction layer (3), a heat conduction insulation layer (2) and a fixing layer (1) from top to bottom, and a zigzag copper foil is arranged in the buffer layer (6); the heat conduction silica gel is filled in the first heat conduction layer (3) and the second heat conduction layer (5), and the contact surfaces of the first heat conduction layer (3) and the second heat conduction layer (5) and the graphene layer (4) are both in a zigzag shape; graphene powder is filled in the graphene layer (4), and a plurality of miniature copper pipes (10) are uniformly arranged in the graphene layer (4);
a plurality of heat dissipation plates (8) are arranged on the first heat dissipation layer (7); the plurality of the heat dissipation plates (8) are uniformly arranged on the upper surface of the first heat dissipation layer (7), and each heat dissipation plate (8) is perpendicular to the first heat dissipation layer (7);
the surface of the second heat dissipation layer (9) far away from the heat dissipation film body is in a sawtooth shape.
2. The composite graphene heat dissipation film according to claim 1, wherein: the fixing layer (1) is internally provided with heat conduction glue; and the heat conduction insulating layer (2) is filled with heat conduction filling glue.
3. The composite graphene heat dissipation film according to claim 1, wherein: and a release film (11) is arranged on the lower surface of the fixed layer (1).
4. The composite graphene heat dissipation film according to claim 1, wherein: a plurality of miniature copper pipes (10) are arranged in the graphene layer (4) in a penetrating manner, and two ends of the miniature copper pipes (10) are fixedly connected with the two second heat dissipation layers (9) respectively.
5. The composite graphene heat dissipation film according to claim 1, wherein: and an anti-static coating is arranged on the upper surface of the first heat dissipation layer (7).
6. The composite graphene heat dissipation film according to claim 1, wherein: the heat dissipation plate (8) is made of copper sheets.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021593665.5U CN212864650U (en) | 2020-08-04 | 2020-08-04 | Combined type graphite alkene heat dissipation membrane |
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| CN202021593665.5U CN212864650U (en) | 2020-08-04 | 2020-08-04 | Combined type graphite alkene heat dissipation membrane |
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| CN212864650U true CN212864650U (en) | 2021-04-02 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113594109A (en) * | 2021-07-16 | 2021-11-02 | 深圳市立凡硅胶制品有限公司 | Hot press forming heat conducting film |
| CN114801357A (en) * | 2022-04-28 | 2022-07-29 | 安徽碳华新材料科技有限公司 | Heat radiation structure for integrated chip based on film-like artificial graphite sheet |
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2020
- 2020-08-04 CN CN202021593665.5U patent/CN212864650U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113594109A (en) * | 2021-07-16 | 2021-11-02 | 深圳市立凡硅胶制品有限公司 | Hot press forming heat conducting film |
| CN113594109B (en) * | 2021-07-16 | 2024-05-07 | 深圳市立凡硅胶制品有限公司 | Hot-press formed heat conducting film |
| CN114801357A (en) * | 2022-04-28 | 2022-07-29 | 安徽碳华新材料科技有限公司 | Heat radiation structure for integrated chip based on film-like artificial graphite sheet |
| CN114801357B (en) * | 2022-04-28 | 2024-02-09 | 安徽碳华新材料科技有限公司 | Heat radiation structure for integrated chip based on film-shaped artificial graphite sheet |
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