Wick structure of heat pipe

Abstract

A wick structure is attached on an internal sidewall of a heat pipe. The wick structure is a one-layer woven wick. At least one weaving direction of the meshes of the woven wick contains a plurality of fiber bundles each including two more woven fibers to weave to a plurality of single fiber. As such, the fiber bundles of the one-layer woven wick provide enhanced capillary force like a multi-layer wick structure.

Description

BACKGROUND OF THE INVENTION [0001] The present invention relates in general to a wick structure of a heat pipe, and more particularly, to a wick structure with enhanced capillary action to a heat pipe. [0002] There are lots of device used for transferring heat in the industry. A heat pipe is widely in the form of a tube with one closed end and one open end. A wick structure is installed in the heat pipe and a working fluid is introduced into the heat pipe, followed by the process of sealing the open end. When the heat pipe is in contact with the electronic products, the heat absorbing end absorbs the heat from the electronic products, such that a phase transition from the liquid state to the gas state occurs to the working fluid. After flowing to the cooling end of the heat pipe, the gaseous working fluid is then condensed back to the liquid state and re-flows back to the heat absorbing end by the capillary effect provided by the wick structure. Therefore, the circulation and phase ...

AI Technical Summary

Benefits of technology

"The present invention provides a heat pipe with a wick structure that is made up of a one-layer woven wick. The wick structure contains meshes made up of multiple fiber bundles, which enhances the capillary force and provides better heat transfer compared to traditional multi-layer wick structures. The heat pipe includes a tubular member and a wick structure attached to its interior surface. The wick structure is made up of a plurality of fibers woven together to form the meshes, which improve the heat transfer efficiency of the heat pipe."

Problems solved by technology

However, the multi-layer wick structure costs much more and may have the problem being curled to put inside a tubular member of the heat pipe.

The curled wick structure may not reliably attach to the interior surface of the tubular member and may collapse during the sintering.

Moreover, if the heat pipe is curved, due to each layer of the wick structures is different, the multi-layer wick may peel from each other.

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