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Pulsating heat pipe heat-expanding plate and manufacturing method thereof

A technology of pulsating heat pipes and manufacturing methods, applied in indirect heat exchangers, lighting and heating equipment, cooling/ventilation/heating transformation, etc., can solve problems affecting system reliability, component performance degradation, and inability to work stably, and achieve high The effect of heat transfer, low cost and simple structure

Active Publication Date: 2012-08-08
江苏中国科学院能源动力研究中心 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The normal operating temperature range of electronic components is generally -5 ~ +65 ℃, beyond this temperature range, the performance of the components will drop significantly and cannot work stably, which will affect the reliability of the system operation
Research and practical applications have shown that for every 10°C increase in the temperature of a single semiconductor component, the reliability of the system will be reduced by 50%, and for every 10°C drop in temperature, its life will be doubled

Method used

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  • Pulsating heat pipe heat-expanding plate and manufacturing method thereof
  • Pulsating heat pipe heat-expanding plate and manufacturing method thereof
  • Pulsating heat pipe heat-expanding plate and manufacturing method thereof

Examples

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Effect test

Embodiment 1

[0035] Such as Figures 1 to 6 As shown, the pulsating heat pipe expansion plate 1 includes a base plate 9, a front plug 11, a rear plug 12, and cover plates 4, 5, and 6, and the designed size of the heat expansion plate is 60×260×3mm 3 , the pulsating heat pipe heat expansion plate is produced in the following order: 1) Select a thicker plate, such as 8mm or 5mm, as the substrate 9, the substrate 9 is an oxygen-free copper plate or an L2 aluminum plate, and the substrate 9 is processed by wire cutting. A plurality of parallel capillary channels 7, then cut a slit 8 on the substrate between adjacent two capillary channels 7, but do not cut through, the depth of the slit 8 does not exceed the thickness of the substrate, the cross section of the heat expansion plate is as follows figure 2 As shown; 2) process several cylindrical protrusions 10 with a diameter of 1mm on the two ends of the substrate 9 connected to the front and rear plugs 11, 12, such as image 3 , 4 As shown,...

Embodiment 2

[0043] Such as figure 1 , 2 , 9, and 10, the size of the designed heat expansion plate is 60×260×3mm 3 , the pulsating heat pipe heat expansion plate 1 is produced in the following order: 1) select a relatively thick plate (such as 8mm or 5mm) as the base plate 9, the base plate is an oxygen-free copper plate or an L2 aluminum plate, and adopts the mode of wire cutting to process on this base plate. A plurality of parallel capillary channels 7, then cut a slit 8 on the substrate 9 between adjacent two capillary channels 7, but do not cut through, the depth of the slit 8 does not exceed the thickness of the substrate 9, and the heat expansion plate 1 cross section as figure 2 As shown; 2) The substrate 9 is gradually thinned to the target size, and then the upper cover plate 6 is welded on the side of the substrate 9 with the capillary channel 7 and the slit 8; 3) On the two ends of the substrate 9, respectively weld the strips There are front and rear plugs 11', 12' with e...

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Abstract

The invention provides a pulsating heat pipe heat-expanding plate and a manufacturing method thereof. The pulsating heat pipe heat-expanding plate (1) is manufactured by the following steps: processing a plurality of parallel capillary groove channels (7) on a base plate (9) and cutting a slit (8) between the adjacent capillary groove channels (7); welding an upper cover plate (6) on the surface,with the capillary groove channels (7) and the slits (8), of the base plate (9); welding front plugs (11 and 11') and rear plugs (12 and 12') on the two end faces of the base plate (9) so as to form a pipe shell of a pulsating heat pipe (2), wherein communicating loops (11-1 and 11'-1) and liquid charging pipes (3) are arranged on the front plugs (11 and 11'); and cleaning, detecting leakage and charging medium into the pipe shell, and sealing. The pulsating heat pipe heat-expanding plate is a high-efficiency heat-conducting component, has a simple structure, is easy to process, and increasesthe heat exchange quantity by the characteristics of the pulsating heat pipe and a microsized enhanced heat exchange method, so that the electronic devices have a reliable work performance and the pulsating heat pipe heat-expanding plate can be widely applied to the fields of cooling of the electronic devices.

Description

technical field [0001] The invention relates to a pulsating heat pipe heat expansion plate and a manufacturing method thereof. The prepared pulsating heat pipe heat expansion plate is a high-efficiency heat conduction element and can be widely used in the cooling field of electronic components. technical background [0002] At present, electronic products are widely used in computer, aerospace, communication, military industry, civilian electronic equipment and other fields. The improvement of the reliability of electronic components, the increase of power capacity, and the miniaturization of the structure all directly depend on the perfection of the thermal control of the device itself. Therefore, the problem of heat dissipation has become a key issue for the stable operation, research and development of electronic products. [0003] The normal operating temperature range of electronic components is generally -5 ~ +65 ℃, beyond this temperature range, the performance of the...

Claims

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Application Information

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IPC IPC(8): F28D15/04H05K7/20
CPCF28D15/0266
Inventor 桂小红王焕光刘强
Owner 江苏中国科学院能源动力研究中心
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