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Composite wick type special-shaped heat pipe radiator

A heat pipe radiator and liquid-absorbing core technology, applied in indirect heat exchangers, lighting and heating equipment, cooling/ventilation/heating transformation, etc., can solve the problems of low heat dissipation efficiency, slow return speed, large radiator wind resistance, etc. Achieve the effects of improving heat dissipation efficiency, reducing wind resistance, and increasing heat dissipation surface area

Inactive Publication Date: 2017-05-10
CRRC DALIAN INST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing phase change radiator has a slow return speed after liquefaction, which cannot meet the current heat dissipation requirements, and the existing radiator has too large wind resistance and low heat dissipation efficiency

Method used

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  • Composite wick type special-shaped heat pipe radiator
  • Composite wick type special-shaped heat pipe radiator
  • Composite wick type special-shaped heat pipe radiator

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0025] Such as Figure 1 to Figure 3 As shown, a compound liquid-absorbing core type special-shaped heat pipe radiator includes a substrate 1, a special-shaped heat pipe 5 and heat dissipation fins 6 arranged on the outside of the heat pipe 5, the inside of the substrate 1 is provided with an evaporation chamber 3, and the bottom of the substrate 1 The surface is a heat-absorbing surface, that is, the installation surface of the heat source module. The heat pipe 5 includes a heat pipe body 11 with a special-shaped cross section. Grooves 12 are arranged on the inner wall of the heat pipe body 11, and protrusions are formed between adjacent grooves 12. , the inner wall of the heat pipe main body 11 is laid with velvet fin fiber layer I13, the inner space of the heat pipe 5 communicates with the evaporation chamber 3, and the inner space of the heat pipe 5 and the evaporation chamber 3 jointly form a closed phase change hot chamber. The special-shaped heat pipe refers to a heat ...

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Abstract

The invention discloses a composite wick type special-shaped heat pipe radiator. The composite wick type special-shaped heat pipe radiator comprises a base plate, special-shaped heat pipes and radiating fins arranged on the outer sides of the heat pipes. Evaporation cavities are formed in the base plate. Each heat pipe comprises a heat pipe body with the special-shaped section. Grooves are formed in the inner wall of each heat pipe body, and protrusions are formed between the adjacent grooves. A fluffy-shaped fin fiber layer I is laid on the inner wall of each heat pipe body. Each fluffy-shaped fin fiber layer I is made of metal fibers, wherein the surface of each fluffy-shaped fin fiber layer I is provided with irregular protrusions and / or pits and each fluffy-shaped fin fiber layer I is of a fluffy-shaped fin structure. Inner spaces of the heat pipes communicate with the corresponding evaporation cavities, and the inner spaces of the heat pipes and the evaporation cavities form an airtight phase-change heat transfer cavity together. According to the composite wick type special-shaped heat pipe radiator, the fluffy-shaped fin fiber layers are sintered inside the evaporation cavities, the effect that each evaporation cavity is quickly filled with a backflow working medium can be guaranteed, the working media in the evaporation cavities can be evenly distributed, the section shape of each heat pipe is made special, wind resistance caused when airflow passes through the radiating fins and a special-shaped heat pipe bundle of the radiator can be effectively reduced, and the radiating efficiency is improved.

Description

technical field [0001] The invention relates to a radiator, in particular to a composite liquid-absorbing core type special-shaped heat pipe radiator. Background technique [0002] With the emergence of high-power electronic devices and the development of ultra-high-integrated electronic components in the direction of high speed, high frequency and high power, the heat generation of electronic devices is increasing, and the heat flux and surface temperature are getting higher and higher, which affects the The reliability and service life of the device put forward higher requirements for heat dissipation. The existing phase-change radiator has a slow return speed after liquefaction of the working medium, which cannot meet the current heat dissipation requirements, and the existing radiator has too large wind resistance and low heat dissipation efficiency. Contents of the invention [0003] In view of the above problems, the present invention researches and designs a compou...

Claims

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Application Information

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IPC IPC(8): F28D15/04H05K7/20
CPCF28D15/043F28D15/046F28D2021/0029H05K7/20336
Inventor 姜冬孔丽君于瀚翔李昂刘俊杰
Owner CRRC DALIAN INST CO LTD
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