Flat heat pipe

Abstract

A flat heat pipe including: a tubular member having two sealed ends, a capillary wick being disposed at the internal sidewall of said tubular member and a liquid contained in said tubular member. Said tubular member defines a flat section and a thicker section at least. By the way, the present invention can solve the problem of the accumulated water inside the heat pipe of prior art and keeps a good efficiency of uniform temperature, and the radiation efficiency is better then the heat pipe of prior art.

Description

BACKGROUND OF THE INVENTION[0001]1. Field of the Invention[0002]The present invention relates to a heat-dissipating device and more particular to a flat heat pipe.[0003]2. Description of the Related Art[0004]A conventional heat pipe is usually composed of a sealed tubular member, a capillary wick mounted on the internal wall of the sealed tubular member, and adequate liquid, employing the liquid-vapor transformation and the flowage of the liquid for thermal conduction. In practical operation, water located at a heated section of the sealed tubular member is heated to be transformed into vapor, the vapor is then diffused to a condensed section of the sealed tubular member to be transformed into water, and then the water is returned to the heated section through the capillary action generated by the capillary wick, thus completing heat exchange. Such endless cycles of endothermic and exothermic reactions can effect rapid thermal conduction.[0005]However, in some device with limited sp...

AI Technical Summary

Benefits of technology

[0007]The primary object of the present invention is to provide a flat heat pipe, which is able to solve the problem of accumulated water and provides a good character of uniform temperature.

[0008]To achieve this object of the present invention, the flat heat pipe including: a tubular member having two sealed ends, a capillary wick being disposed at the internal sidewall of said tubular member and a liquid being disposed in said tubular member. Said tubular member defines a flat section and a thicker section at least. Whereby the present invention can solve the problem of the accumulated water inside the heat pipe of the prior art and keeps a good efficiency of uniform temperature, and the radiation efficiency is better then the heat pipe of prior art.

Problems solved by technology

However, in some device with limited space such as notebooks, display cards or the other devices that will dissipate heat.

This status of accumulated water causes the temperature of the accumulated water portion dropping and breaks the status of a uniform temperature of the whole, and the effect of heat transmission drops too.

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