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Graphite heat radiator

A heat dissipation device, graphite technology, applied in the direction of cooling/ventilation/heating transformation, electrical components, electric solid devices, etc., can solve the problem that the graphite sheet material cannot be fixedly connected to the metal base, achieve good heat dissipation effect, simple structure, and heat conduction good performance

Inactive Publication Date: 2012-05-23
DALIAN LICHANG NEW MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The technical problem to be solved in the present invention is to overcome the problem that the graphite sheet material cannot be fixedly connected to the heat pipe or to the metal base by welding

Method used

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  • Graphite heat radiator
  • Graphite heat radiator
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] The structure of the graphite cooling device of this embodiment is as attached figure 1 , attached figure 2 , attached image 3 , attached Figure 4 shown.

[0038] in the attached figure 1 , attached figure 2 Among them, the sheet metal connector 1 connected to the graphite sheet is made of high thermal conductivity metal, preferably copper or aluminum sheet, and the edge of the shorter end edge of the sheet metal connector 1 has several grooves made inward. Puncture tenon 2. Use the metal edge wrapping machine to bend and wrap the metal sheet, so that the metal sheet is bent into a U-shaped opening groove along one side of the graphite sheet, and the width of the opening is slightly wider than the width of the seal to ensure smooth insertion of the graphite sheet . The graphite sheet 3 is inserted into the metal sheet bent into a groove-shaped edge-wrapping groove, and then press-fitted so that the puncture tenon 2 is inserted into the graphite sheet, and the...

Embodiment 2

[0043] The structure of the graphite cooling device of this embodiment is as attached Figure 5 , attached Figure 6 , attached Figure 7 , attached Figure 8 shown.

[0044] in the attached Figure 5 And attached Figure 6 Among them, the metal connector is in the shape of a rivet, and the rivet-shaped metal connector 5 is made of high thermal conductivity metal such as copper and aluminum. The shape metal connector 5 is fixed with the graphite sheet, and the metal sheet 8 is positioned between the rivet cap and the graphite sheet. The graphite sheet is punched with the same mounting holes as the number of the metal sheets, and one end of the metal sheet stretches into the mounting holes. Graphite fins with metal flakes are formed. In this way, graphite sheets are fixed layer by layer to form graphite fin groups. Then one end of the metal sheet is fixed in the groove directly contacting the metal base 9 of the heat source, so that the metal sheet 8 transfers the heat o...

Embodiment 3

[0046] The structure of the graphite cooling device of this embodiment is as attached Figure 9 , attached Figure 10 , attached Figure 11 , attached Figure 12 shown.

[0047] in the attached Figure 10 And attached Figure 11 Among them, the columnar metal connector 10 is made of high thermal conductivity metal materials such as copper and aluminum, and four vertical clamping lines are made on the side of the columnar metal connector 10. The tenon 11 fixes the graphite sheet; the graphite sheet 14 is cut to a corresponding size, and a hole is opened in the middle of the graphite sheet. The sides have the same size, and the two sides of the graphite sheet 14 are perforated according to the size of the bottom area of ​​the heat pipe, and the specific number of graphite sheets is determined according to the shape and needs of the heat pipe. Graphite sheets 14 arrange and fix each graphite sheet 14 at a certain distance through the tenon or puncture tenon 11 on the column...

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Abstract

The invention relates to a graphite heat radiator, which consists of a graphite sheet, a metal base, a heat pipe, an upper metal cover and a fan. The graphite heat radiator is characterized in that a metal connecting piece is also arranged in the graphite heat radiator, wherein the metal connecting piece not only is fixedly connected with the graphite sheet, but also is fixedly connected with the metal base or is fixedly connected with the metal base through the heat pipe. The metal connecting piece with good heat-conducting property arranged in the graphite heat radiator not only fixedly connects the graphite sheet to the heat pipe or fixedly connects the graphite sheet to the metal base, but also plays a role in heat conduction. The structure design of the graphite heat radiator can be conveniently changed only by changing the shape design of the metal connecting piece of the graphite heat radiator so that the graphite heat radiator can adapt to various heat source environments. The graphite heat radiator has the advantages of simple structure, convenient and easy operation and good radiating effect, and can be widely applied to radiating systems of electronic components.

Description

technical field [0001] The invention relates to a heat dissipation device, in particular to a graphite heat dissipation device composed of a heat conducting material and a graphite sheet group. Background technique [0002] During the use of electronic components, due to the heat generated inside the components, which cannot be dissipated, it is easy to cause relatively extreme temperatures in the system and cause damage to the devices themselves. Therefore, electronic components generally only work effectively within a certain threshold temperature range. These Overheating of electronic components not only impairs their own performance, but also reduces the performance and reliability of the entire system. [0003] A typical heat sink is composed of metals such as copper or aluminum, because metals such as copper tend to absorb heat and transfer it around the entire structure, thereby achieving the effect of heat dissipation. The copper heat dissipation structure is often ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H05K7/20H01L23/34H01L23/373H01L23/367
Inventor 耿世达
Owner DALIAN LICHANG NEW MATERIAL CO LTD
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