An ultra-thin heat pipe with gradient ordered pores porous capillary core and its manufacturing method

An ultra-thin heat pipe and capillary core technology, applied in indirect heat exchangers, heat exchange equipment, heat exchanger shells, etc., can solve the problems of small steam circulation space and weak capillary driving force, and increase the available space, capillary The effect of strong driving force and large circulation space

Active Publication Date: 2022-01-11
WUHAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome the problems of small steam circulation space and weak capillary driving force in the prior art, and provide a gradient ordered porous capillary core ultra-thin heat pipe with large steam circulation space and strong capillary driving force and its Manufacturing method

Method used

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  • An ultra-thin heat pipe with gradient ordered pores porous capillary core and its manufacturing method
  • An ultra-thin heat pipe with gradient ordered pores porous capillary core and its manufacturing method
  • An ultra-thin heat pipe with gradient ordered pores porous capillary core and its manufacturing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0060] A gradient ordered aperture porous capillary core ultra-thin heat pipe, including a tubic body 1, a cross section a rectangular flat tube structure; the tubular body is provided with at least two housing axial arrangement The porous hair core 2, the porous capillary core 2 in the tubular body 1 separates a plurality of steam passages 3; the porous hair core 2 is a metal capillary core having a lot of pores inside, and the porous capillary core 2 is covered with sphere. A circular aperture 22 is formed at the phase of the hole 21, and the adjacent spherical hole 21 is formed; the spherical holes 21 in the porous capillary core 2 are all in the same diameter, and the single spherical hole 21 is passed through a circular aperture 22. Instead of the twelve spherical holes 21 adjacent; the spherical hole 21 has a diameter of 0.02 to 0.08 mm, and the thickness of the tubular body 1 is 0.26-6 mm, and the tube wall thickness of the tubular body is 0.06- 0.1 mm; the porous capillary...

Embodiment 2

[0067] Example 2 Example 1 is substantially the same, except that it:

[0068] The tubular body 1 is provided with a porous wick three axially disposed along the tubular body 2; the diameter of the spherical hole 2 filled the porous wick 21 by the middle to the top, bottom diameter is gradually reduced, the porous spherical hole 21 of the middle wick 2 is the same medium-diameter ball holes 24, the same small diameter ball holes 23 of the porous wick 2 and a spherical top 21 of the bottom of the hole, the ball holes 23 of small circular aperture 22 through its Medium eight ball holes adjacent four medium-sized spherical cavity 24 communicating, through holes 24 of the medium-sized ball 22 a circular aperture 24 in communication adjacent thereto; spherical diameter of the hole 21 is 0.02-0.08 mm, diameter 0.02 -0.04 mm between the holes 21 of small spherical ball holes 23, the diameter of the spherical bore 21 between 0.021-0.06 mm for medium-sized ball holes 24; thickness of the t...

Embodiment 3

[0070] Example 3 Example 1 is substantially the same, except that it:

[0071] The tubular body 1 is provided with a porous wick four axially disposed along the tubular body 2; 2 full bore diameter of the spherical porous wick 21 the shape of the upper layer to the lower order gradient, said orderly gradient of decreasing diameter from the upper layer to the lower layer or the upper layer to the diameter gradually increases from the lower layer; diameter of the spherical pores within the porous wick 2 is covered by the upper layer 21 is gradually reduced to a lower layer, the porous wick 2 spherical pores top layer 21 of the same diameter of large ball holes 25, the spherical pores of the porous wick 2 middle layer 21 of the same diameter of the medium-sized ball holes 24, the same diameter of the small ball holes 23 spherical pores of the porous wick 2 the bottom 21 of the , the upper end of the lower four large and medium-sized ball hole 25 through the ball holes 22 circular ape...

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Abstract

An ultra-thin heat pipe with a gradient ordered porous porous capillary core, including a tube body, the tube body is a flat tube structure with a rectangular cross section, and at least two porous capillary cores arranged along the axial direction of the tube body are arranged in the tube body, The porous capillary core in the tube separates multiple steam channels; the porous capillary core is a metal capillary core structure with many pores inside, and the porous capillary core is covered with spherical holes, and the junction of adjacent spherical holes forms There are circular pores. This design not only has a large steam circulation space, strong capillary driving force, and greatly improves the heat transfer performance inside the ultra-thin heat pipe, but also has a reasonable structural design and can flexibly adjust the design parameters of the controller to optimize its product performance.

Description

Technical field [0001] The present invention relates to a heat pipe gradient ordered porosity thin porous wick and its manufacturing method, particularly suitable for optimizing thermal performance of the heat pipe. Background technique [0002] With the rapid development of information industry, electronic products continue toward higher performance, lighter and thinner in the direction of the calorific value of electronic products increased to bring a series of heat issues, the high heat generated by electronic equipment if the failure to disperse will seriously affect the stability and reliability of electronic equipment, high heat flux problem has become a key limiting factors that restrain the development of the industry. Electronics temperature uniformity and heat dissipation have higher requirements, non-uniform temperature distribution will result in nonuniform thermal deformation of the electronic device, high temperature would destroy the electronic device, so that effi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F28D15/04F28F9/007F28F21/06F28F21/08
CPCF28D15/046F28F9/007F28F21/085F28F21/06
Inventor 明廷臻陈森吴永佳
Owner WUHAN UNIV OF TECH
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