Highly effective flat-type loop heat-pipe apparatus

A loop heat pipe, flat-plate technology, used in cooling/ventilation/heating transformation, instrument cooling, instrumentation, etc., can solve the problems of high operating temperature of loop heat pipe, high partial pressure of evaporator, and low maximum heat transfer, etc. Enhanced heat transfer capability, reduced heat leakage, and better performance

Inactive Publication Date: 2005-11-30
SUN YAT SEN UNIV
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Problems solved by technology

[0004] Generally, when the evaporation rate of the working fluid in the evaporator is greater than the return rate of its liquid return pipe, and the second liquid-absorbing core is difficult to suck the working fluid from the compensation chamber to the evaporator, it will cause dryness.
In addition, due to the excessive heat conduction of the wick, the compensation room temperature is too high, and the oper

Method used

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  • Highly effective flat-type loop heat-pipe apparatus
  • Highly effective flat-type loop heat-pipe apparatus
  • Highly effective flat-type loop heat-pipe apparatus

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Embodiment 1

[0017] Embodiment 1 Use a high-efficiency loop heat pipe device to dissipate heat from a computer CPU

[0018] figure 1 Among them, the evaporator and the compensation chamber 2 are in one-piece structure. The bottom of the evaporator is in contact with the heat load end Q, that is, the CPU of the computer. Both the first liquid-absorbing core 5 and the second liquid-absorbing core 3 are located inside the evaporator, wherein the first liquid-absorbing core is close to the bottom of the evaporator, and the second liquid-absorbing core Then it is close to the first liquid-absorbent core. On the other side of the second liquid-absorbing core, there is a certain space inside the evaporator, which is the compensation chamber 2 . The liquid return pipe 1 ends at the second liquid-absorbent core 3 through the compensation chamber 2, and this pipe is mainly connected to the condensation section so that the liquid can return to the first liquid-absorbent core. There are many steam ...

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Abstract

This invention relates to one plate effective circuit heating tube device in conduction and electronic cooling field, which is characterized by the following: providing one plate circuit integration vapor and compensation structure; the first liquid absorptive chip acting as industry substances vapor, the second chips acts to enlarge the system capillary abstracting function with its holes structure easy to arrive the first absorptive chip and acts to reduce the system heat leakage; the first liquid absorptive chip comprises level groove and vertical groove.

Description

technical field [0001] The invention belongs to the field of heat transfer and cooling of electronic components, and in particular relates to a high-efficiency flat-plate loop heat pipe device. Background technique [0002] The loop heat pipe (LHP) is a new type of two-phase high-efficiency heat transfer device. It uses the capillary force generated by the capillary wick in the evaporator to drive the loop, and uses the evaporation and condensation of the working fluid to transfer heat. It can transfer a large amount of heat under the condition of small temperature difference and long distance. [0003] The evaporator of the loop heat pipe is in contact with the heat source, and a high-performance capillary wick (called the first liquid-absorbing wick) is installed inside the evaporator. The compensation chamber is connected to the evaporator, and the two are internally connected through another capillary wick (called the second liquid-absorbing wick). The condensation sec...

Claims

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Application Information

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IPC IPC(8): H05K7/20
Inventor 吕树申莫冬传
Owner SUN YAT SEN UNIV
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