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Processing method of graphite heat-conducting fin

A technology of graphite heat conduction sheets and processing methods, which is applied in chemical instruments and methods, cooling/ventilation/heating transformation, layered products, etc., can solve the problems of poor heat conduction efficiency and lower graphite density, so as to improve graphite density, The effect of stably inserting and improving heat conduction efficiency

Inactive Publication Date: 2008-12-31
洪进富
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The technical problem to be solved by the present invention is to provide a processing method of graphite heat conduction sheet, which can greatly improve the heat conduction efficiency, and can reinforce to solve the problem that the graphite density at the bend becomes smaller and the heat conduction efficiency deteriorates

Method used

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  • Processing method of graphite heat-conducting fin
  • Processing method of graphite heat-conducting fin
  • Processing method of graphite heat-conducting fin

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Embodiment Construction

[0042] see image 3 , image 3 It is a flowchart of the processing method of the graphite heat conducting sheet 30 of the present invention. The present invention relates to a processing method of a graphite heat conduction sheet 30, the processed graphite heat conduction sheet 30 is as follows Figure 4 Generally, it has a specific profile shape 31. The graphite heat conduction sheet 30 in the figure is composed of two layers of aluminum foil 32 sandwiching a graphite layer 34. In practice, only the graphite layer 34 can be used alone without any thin layer sandwiching. Either part or all of the aluminum foil 32 is replaced by copper foil or adhesive. Further, the graphite layer 34 is composed of graphite and a filler. The graphite provides the function of heat transfer, and the filler makes it soft and easy to process.

[0043] This processing method is compatible with Figure 5 The mold structure 39 is used to carry out the steps of the processing method. The mold stru...

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Abstract

The invention discloses a processing method of graphite heat conducting fins, using a group of male dies and female dies to clamp and press the graphite conduction plate to become the graphite heat conducting fins with specific contour exterior, and using holderups arranged between the male dies and the females dies, controlled to continue to press a first thickness to a scheduled second thickness of the graphite heat conducting fins, thereby advancing density of the graphite and improving conduction efficiency. Furthermore, the bent graphite heat conducting fins are extruded, to reinforce the problems of hard conduction at the loose bending. In addition, after the heat conducting fins are tabled on the surfaces of the graphite heat conducting fins, the graphite heat conducting fins are extruded again, causing the conducting fins more fixedly connected with the surfaces of the graphite heat conducting fins.

Description

technical field [0001] The invention relates to a processing method of a graphite heat-conducting sheet, in particular to a processing method of a graphite heat-conducting sheet utilizing electronic components such as a dissipating chip to generate heat. Background technique [0002] Graphite heat conduction sheets are often used in electronic devices such as notebook computers, and are attached to high-heat processors, chipsets...etc. Electronic components to dissipate heat generated by electronic components. [0003] The main components of graphite thermal pads are graphite and filler. Graphite can conduct heat, and the filler makes the entire graphite heat-conducting sheet soft and easy to process. Sometimes, in order to attach chips and other electronic components, the graphite heat conduction sheet is pressed and folded from the upper and lower surfaces of the graphite heat conduction sheet with a mold, so that the graphite heat conduction sheet is concave and convex o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05K7/20B32B15/04
Inventor 洪进富
Owner 洪进富
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