A trapezoidal inner fin heat pipe

Abstract

The invention provides a heat pipe. The heat pipe comprises a flat pipe and fins arranged in the flat pipe, wherein the flat pipe comprises pipe walls which are parallel to each other; a fluid passage is formed between the adjacent pipe walls; the fins are arranged between the pipe walls; the fins comprise inclined parts inclined to the pipe walls, and bulges are formed on the inclined parts by machining in a stamping manner, thereby causing fluid at the two sides of the inclined parts to be communicated through holes which are formed in the inclined parts in a stamping manner; and the bulges extend outwards from the inclined parts along the fluid flow direction. The heat pipe has the beneficial effects that the problem of low heat transfer efficiency of the heat pipe containing non-condensable gases is solved by arranging the stamped and bulged plate-fin cooling plates in the heat pipe, energy sources are greatly saved, and the problem of low efficiency of a heat pipe heat transfer system is overcome.

Description

technical field [0001] The invention belongs to the field of heat pipes, in particular to an inner fin heat pipe. Background technique [0002] Heat pipe technology is a heat transfer element called "heat pipe" invented by George Grover of Los Alamos National Laboratory in the United States in 1963. It makes full use of the principle of heat conduction and phase change medium. The rapid heat transfer properties of the heat pipe quickly transfer the heat of the heating object to the heat source, and its thermal conductivity exceeds that of any known metal. [0003] Heat pipe technology was widely used in aerospace, military and other industries before. Since it was introduced into the radiator manufacturing industry, people have changed the traditional radiator design ideas and got rid of the single heat dissipation mode that only relies on high air volume motors to obtain better heat dissipation. The use of heat pipe technology enables the radiator to obtain a satisfactory ...

AI Technical Summary

Problems solved by technology

[0004] Generally, a heat pipe includes an evaporating end and a condensing end. The fluid in the evaporating section absorbs heat and evaporates, condenses at the condensing end, and transfers heat to the external fluid. Whether it is the evaporating end or the condensing end, there will be gas in the heat exchange process. In the case of liquid two-phase flow, and with the aging of the heat pipe, some non-condensable gas will be generated in the heat pipe, resulting in a decrease in the heat transfer coefficient of the heat pipe

[0005] In addition, during the heat exchange process between the evaporating end and the condensing end of the heat pipe, the heat transfer at each position of the evaporating end and the condensing end is different, resulting in uneven local heat transfer

[0006] In view of the above problems, the present invention provides a new heat pipe, thereby solving the problems of low heat transfer coefficient and uneven heat transfer in the case of heat pipe heat exchange

Images