Processing method for blowing type soaking plate with capillary structure

A capillary structure and processing method technology, applied in the field of heat dissipation, can solve the problems of filler deformation, affecting the formation of capillary structure, breaking, etc., to achieve the effect of avoiding deformation and improving heat dissipation effect

Active Publication Date: 2019-10-22
常州恒创热管理有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In the prior art, the processing of the vapor chamber usually sinters the filler in the cavity to form a capillary structure before hot rolling and inflation, but in the subsequent hot rolling p

Method used

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  • Processing method for blowing type soaking plate with capillary structure
  • Processing method for blowing type soaking plate with capillary structure
  • Processing method for blowing type soaking plate with capillary structure

Examples

Experimental program
Comparison scheme
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Example Embodiment

[0034] Example one

[0035] See Figure 1 to Figure 4 , The first embodiment of the present invention provides a method for processing an inflatable soaking plate with a capillary structure, which specifically includes the following steps:

[0036] Step S1: Prepare materials and prepare two substrates 1. In this embodiment, both substrates 1 are aluminum plates, and the model of the aluminum plates is 3003.

[0037] Step S2: printing and covering, cleaning and roughening one of the substrates 1, and printing the anti-rolling agent 2 on the roughened surface of the substrate 1 according to the pattern of the cavity or the flow path required by the process. The anti-rolling agent 2 is cured on the substrate 1 after drying, and then another substrate 1 is covered on the substrate 1 printed with the anti-rolling agent 2 so that the anti-rolling agent 2 is located between the two substrates 1.

[0038] In this embodiment, the rolling resist 2 is graphite emulsion or boron nitride emulsion...

Example Embodiment

[0056] Example two

[0057] See Figure 5 The difference between the processing method of the inflatable heat spreading plate with capillary structure provided in the second embodiment of the present invention and the processing method of the inflatable heat spreading plate with capillary structure in the first embodiment is that: in this embodiment, A heat-conducting plate 31 is provided on the outer surface of at least one of the two substrates 1, and the heat-conducting plate 31 and the substrate 1 to which it is connected together form a copper-aluminum composite plate 3. The thermal conductivity of the thermal conductive plate 31 is higher than the thermal conductivity of the substrate 1. Understandably, the material of the heat conducting plate 31 may be copper or copper alloy or the like. In this embodiment, the coverage rate of the heat conductive plate 31 is 3 to 30%. It should be noted that the coverage rate refers to the ratio of the thickness of the thermal conducti...

Example Embodiment

[0062] Example three

[0063] The difference between the processing method of the inflatable heat spreading plate with capillary structure provided in the third embodiment of the present invention and the processing method of the inflatable heat spreading plate with capillary structure in the second embodiment is that: in this embodiment, The two substrates 1 and the heat-conducting plate 31 are simultaneously hot-rolled. After one of the substrates 1 is cleaned and roughened, the anti-rolling agent 2 is printed on the roughened surface of the substrate 1 and riveted with the other substrate 1 and the heat-conducting plate 31 to conduct heat The plate 31 is on the outside. When processing, it is only necessary to provide the heat conducting plate 31 and the two substrates 1 to be rolled at the same time, and to perform inflation between the two substrates 1.

[0064] In this embodiment, before hot rolling, the thickness of one substrate 1 is 1.5 to 3.0 mm, the thickness of the oth...

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Abstract

The invention discloses a processing method for a blowing type soaking plate with a capillary structure. The processing method specifically comprises the following steps of 1, preparing materials, specifically, two substrates are prepared; 2, printing and capping, specifically, a blocking agent is printed on the substrates, and the two substrates are capped, wherein the blocking agent is positioned between the two substrates; 3, hot rolling, specifically, the double-layer substrate is rolled and synthesized into a composite plate; 4, blowing, specifically, high-pressure gas is introduced intothe composite plate, so that a part printed with the blocking agent is expanded to form a cavity; 5, filling filler, specifically, filler is filled into the cavity of the composite plate, wherein thefiller comprises particles, and the melting point of the particles is higher than that of the substrates; and 6, sintering, specifically, the composite plate is heated, and the filler is sintered on the composite plate to form the capillary structure. The filler is filled after a blowing process and sintered in the cavity to form the capillary structure, so that the situation that the filler is deformed or even broken due to extrusion is avoided, the formation of the capillary structure is guaranteed, and the heat dissipation effect of the soaking plate is improved.

Description

technical field [0001] The invention relates to the technical field of heat dissipation, in particular to a processing method for an inflatable vapor chamber with a capillary structure. Background technique [0002] The soaking plate includes a plate structure composed of two metal substrates with a hollow airtight cavity. The airtight cavity is in a negative pressure state, and the cavity is filled with a phase-change working medium, and a part of the cavity is also left. The vapor chamber is usually a flat plate structure with a hollow cavity, and it can also be connected to the radiator through pipelines to enhance heat dissipation performance. [0003] One side of the vapor chamber is flat, and the other side may be provided with cooling fins. The bottom surface of the vapor chamber is attached to the heat source, and the liquid working medium in the vacuum chamber is quickly evaporated into steam after being heated in a negative pressure environment, and quickly diffu...

Claims

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Application Information

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IPC IPC(8): F28D15/04
CPCF28D15/046
Inventor 黄晓峰张尧徐栋刘飞
Owner 常州恒创热管理有限公司
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