Composite graphite cooling fin

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 [0001] The invention relates to a heat sink used in electronic and electrical products and precision equipment, and more specifically, to a composite graphite heat sink. Background technique [0002] Generally speaking, electronic and electrical products such as computers, mobile phones, TVs, etc. will generate a lot of heat during continuous use. If the heat emitted cannot be dissipated to the outside in time, it may cause the internal parts of the electronic and electrical products to malfunction or shorten the product life. . Heat is also one of the important causes of product failure and fire. [0003] In order to achieve a good heat dissipation effect, people usually use graphite materials with excellent thermal conductivity to make heat sinks. In order to achieve the highest heat transfer efficiency, graphite sheets made of anisotropic graphite with a purity of 99% or more are usually used. However, the physical properties of the graphite flakes inevitably ...

AI Technical Summary

Problems solved by technology

The physical characteristic of graphite sheet is anisotropic heat dissipation, so graphite sheet has excellent heat dissipation and heat uniformity effect in the horizontal direction. If the area of ​​graphite sheet becomes smaller, the heat dissipation effect will inevitably be weakened, so that it cannot meet the high heat generation work of electronic and electrical products. Effective cooling requirements under conditions of

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