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Pulse heat pipe radiator for electronic cooling

A pulsating heat pipe, electronic cooling technology, applied in cooling/ventilation/heating transformation, indirect heat exchangers, electrical solid devices, etc., can solve the problems of increased fan noise, reduced service life, increased fan wear, etc., to improve efficiency. , The effect of stable operation and noiseless operation

Inactive Publication Date: 2007-04-11
CENT SOUTH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The higher the wind speed, the better the cooling capacity, but it also increases the wear of the fan and reduces its service life, and the noise of the fan increases significantly above 6000 rpm
[0004] Water-cooled radiators use water as the cooling medium, and the heat dissipation effect is much more significant than that of air-cooled radiators. However, it has defects such as complicated structure, large volume and weight, and loud pump noise, which is not easy to be widely promoted.

Method used

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  • Pulse heat pipe radiator for electronic cooling

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Embodiment Construction

[0010] Referring to FIG. 1 , the present invention includes a cooling fin 1 , a pulsating heat pipe 2 and a cooling seat 3 . A number of stainless steel heat dissipation fins 1 welded longitudinally and parallel to the heat sink 3 on the heat sink 3, grooves are milled on the heat sink 3, and the pulsating heat pipe 2 is a serpentine circuit formed by bending and welding capillary tubes. Fold, the lower part is welded in the groove, as the heating section, and the upper part passes through the through hole of the fin 1, and welded together, as the cooling section. A closed interface 4 is provided on the pulsating heat pipe 2 for vacuuming

[0011] In the production process of the radiator, it is required that the inside of the copper tube of the heat pipe is clean, and there is no gap when the copper tube is welded. The welding and contact between the fin 1, the pulsating heat pipe 2 and the heat sink 3 are required to be tight. 4 After injecting the working medium, ensure th...

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PUM

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Abstract

This invention discloses a pulse thermotube radiator used in electronic cooling including a radiation base, radiation fins and a pulse thermotube, in which, the radiation fins are parallel- welded on the radiation base vertically, the pulse thermotube is a snake circuit formed by a bended capillary Cu tube to be welded, it is bended at the middle, the lower part is welded in the radiation base, the upper part passes through the through hole of the fins and welded together with the fins, when using, the central position of the radiation base is close to the electronic device, the pulse thermotube not only transfers heat from the center of the radiation base to circumference to turn the base to a warm uniform plate, but also transfers heat to its upper part and the radiation fins so as to increase the efficiency of fins.

Description

technical field [0001] The invention relates to a cooling device, in particular to a pulsating heat pipe radiator for electronic cooling. Background technique [0002] There are many types of radiators currently used for desktop computer CPUs, and the technology is constantly maturing, including self-cooling radiators, air-cooling radiators, water-cooling radiators, semiconductor refrigerators and heat pipe radiators. While heat sink technology continues to mature, electronic assembly technology is also developing continuously, the integration density is getting higher and higher, and the heat density generated by it is also increasing. Among the Intel CPU processors of the same size, the power is mostly between 20W-50W, and some even exceed 50W. Therefore, the heat dissipation capability of the radiator is very high, and the self-cooling radiator can no longer meet the requirements. The semiconductor refrigerator has low working efficiency and is not suitable for electroni...

Claims

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Application Information

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IPC IPC(8): H05K7/20H01L23/427G06F1/20
CPCF28D15/0266F28D15/0275F28F1/32
Inventor 曹小林陈杰王伟周鑫
Owner CENT SOUTH UNIV
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