Flat plate heat pipe

Abstract

The invention provides a flat heat pipe, which comprises a flat shell, a liquid-filled pipe and a capillary core. Wherein, the interior of the flat shell is hollow, and the upper and lower inner surfaces of the flat shell are provided with a number of cross-distributed grooves, and there are protrusions between the adjacent grooves; There is a small hole communicating with its interior, and the liquid filling tube is fixedly connected to the flat shell through the small hole; the capillary core is arranged inside the flat shell, and the capillary core The upper and lower surfaces are respectively in contact with the protrusions on the upper and lower inner surfaces of the flat shell; the capillary core and the groove form a channel with a closed section. The flat heat pipe of the invention can effectively reduce the heat flux density of the heat source, has good temperature uniformity and high reliability, and can also realize excellent temperature uniformity performance under the condition of anti-gravity.

Description

technical field [0001] The invention relates to the technical field of heat transfer, in particular to a flat heat pipe. Background technique [0002] With the rapid development of modern electronic technology, electronic equipment has been widely used in various fields of human life. Electronic devices are gradually developing towards high frequency, high speed, and high integration. The functions and complexity of integrated devices are increasing day by day, which leads to increasing heat dissipation power per unit volume of electronic equipment and higher heat dissipation heat flux density, resulting in electronic equipment. Problems with increased failure rates, reduced reliability and service life. [0003] The flat plate heat pipe is a high-efficiency phase change heat transfer device evolved from the traditional heat pipe. It has the advantages of flexible structure, good temperature uniformity, and high heat transfer efficiency. The main structure of a traditional...

AI Technical Summary

Problems solved by technology

However, due to the groove and protrusion structure in a single direction inside the shell, the flat heat pipe is more suitable for heat transfer in a one-dimensional direction, and the heat tra

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