Fiber bundle capillary core flat heat pipe and preparation method thereof

A flat heat pipe, capillary core technology, applied in lighting and heating equipment, indirect heat exchangers, etc., can solve the problems of flattening, incomplete structure, low heat transfer efficiency, etc., to achieve tight contact, increase production efficiency, increase steam channel effect

Inactive Publication Date: 2016-06-29
SOUTH CHINA UNIV OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

It overcomes the technical problems that the existing heat pipes are prone to flattening d

Method used

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  • Fiber bundle capillary core flat heat pipe and preparation method thereof
  • Fiber bundle capillary core flat heat pipe and preparation method thereof
  • Fiber bundle capillary core flat heat pipe and preparation method thereof

Examples

Experimental program
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Embodiment

[0024] Such as Figures 1 to 4 shown. The invention discloses a flat heat pipe with a fiber bundle capillary core, which comprises a metal tube 1 with a rounded rectangular cross section and a fiber bundle capillary core 2 fixed inside the metal tube 1; working fluid.

[0025] The rounded rectangular metal tube 1 is molded from a circular metal tube, and the fiber bundle capillary core 2 is in close contact with the inner wall of the metal tube 1 .

[0026] The fiber bundle capillary core 2 is twisted and interwoven with a plurality of copper fibers to form a "twisted" structure. However, a plurality of copper fibers can also be combined in a sintered form, and at this time, the copper fibers do not need to be twisted or interwoven.

[0027] The inner wall of the metal pipe 1 is axially distributed with a plurality of grooves, of course, according to specific process requirements, no grooves may be provided.

[0028] The working liquid is deionized water.

[0029] The met...

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Abstract

The invention discloses a flat heat pipe with a fiber bundle capillary core and a preparation method thereof, which comprises a metal tube with a rounded rectangular cross section and a fiber bundle capillary core fixed inside the metal tube; both ends of the metal tube are sealed, and the inside is filled with a working liquid ; The metal tube with a rounded rectangular cross-section is molded from a circular metal tube. The fiber bundle capillary core is in close contact with the inner wall of the metal tube. The fiber bundle capillary core is twisted and interwoven with multiple copper fibers. , showing a "twist-like" structure. In this flat heat pipe, the "twisted" fiber bundle capillary core is placed in a circular metal tube, and then it is flattened by a flattening die, and the fiber bundle capillary core is pressed and fixed in the middle of the inner wall of the metal tube. The supporting function of the core prevents the surface of the flattened circular metal tube from collapsing during the flattening process, which saves the sintering process and greatly increases the production efficiency.

Description

technical field [0001] The invention relates to a heat pipe and a preparation process, in particular to a flat heat pipe with a fiber bundle capillary core and a preparation method thereof. Background technique [0002] As the heat flux density of electronic chips increases sharply and the effective heat dissipation space becomes increasingly narrow, flat heat pipes with high thermal conductivity, high reliability, fast thermal response, and no need for additional power have become ideal heat conduction components used in the electronic field. The capillary wick (abbreviated as the wick) is the core component of the flat heat pipe. The microporous groove sintered composite liquid-absorbing core flat heat pipe has the advantages of simple manufacturing process, low cost, high heat transfer performance, and industrialization. However, the manufacturing process of traditional flat heat pipes is not ideal. On the one hand, the sintering of flat heat pipes takes up most of the p...

Claims

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Application Information

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IPC IPC(8): F28D15/04B21D31/00
CPCF28D15/046B21D31/00
Inventor 余鹏汤勇唐恒林浪庄宝山
Owner SOUTH CHINA UNIV OF TECH
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