Anti-gravity heat pipe

Abstract

The invention discloses an anti-gravity heat pipe which comprises a pipe shell, a liquid storage device, a shape memory spring, a piston and a working medium, wherein the hot end of the anti-gravity heat pipe is higher than the cold end; the liquid storage device is adjacent to the hot end and serves as a containing space for the working medium and is used for storing the working medium to cool the hot end; one end of the shape memory spring is connected with the hot end and generates thermal contact while the other end is connected with the piston; when the hot end is heated to a threshold, the shape memory spring is heated and deformed and drives the piston to push the working medium to supplement the working medium into the liquid storage device; and when the hot end is cooled to a threshold by the supplemented working medium, the shape memory spring is cooled and recovers to the original state. The anti-gravity heat pipe disclosed by the invention breaks through the capillary limitation, the structure is relatively simple, other auxiliary devices such as an isolator, a liquid storage device and a bubbler are not required, additional power consumption is avoided, external force drive is unnecessary, the heat-into-power conversion efficiency is high, and the drive ability is strong.

Description

technical field [0001] The invention relates to the field of heat pipes, in particular to an anti-gravity heat pipe capable of realizing high-performance heat transfer with a hot end on the top and a cold end on the bottom. Background technique [0002] A heat pipe is a highly efficient and fast heat transfer element that does not require power, and has been widely used in power electronics, aerospace and other fields. The heat pipe is made by filling a certain amount of liquid in a closed pipeline, and is divided into an evaporation section, an adiabatic section and a condensation section, and some heat pipes are equipped with a liquid-absorbing wick. When the evaporating section is heated, the liquid evaporates, the steam flows to the condensing section, and condenses into a liquid in the condensing section, and the liquid flows back to the evaporating section under the action of gravity or the capillary force of the liquid-absorbing core, so that the heat is transferred f...

AI Technical Summary

Problems solved by technology

[0006] The above-mentioned simple use of the capillary action of the liquid-absorbing core to achieve anti-gravity heat transfer has limited effect, and factors such as capillary structure, heat load, and height difference between cold and hot ends will have obvious effects; in addition, the existing anti-gravity loop heat pipe structure It is more complicated, and an isolator needs to be installed to prevent the steam from flowing back into the liquid receiver or condenser, and a liquid receiver needs to be set up to replenish the evaporator; while the anti-gravity bubbling loop heat pipe is not only complicated in structure, but also needs to be set up with a compensator and a bubbling heat pipe. In order to generate high voltage, additional power consumption is required, which adds additional heat load to the loop

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