| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a flat plate type heat pipe which achieves a sufficient heat diffusing performance even at a temperature lower than the lower limit of a temperature region where an operating fluid circulating motion of the heat pipe is available. <P>SOLUTION: In this heat pipe having a flat metallic member 1 having an internal space, and the operating fluid enclosed in the internal space, a sheet-like graphite 4 having heat conductivity in the main plane direction higher than that of a metallic member 1, is fixed to the inner wall in the main plane direction of the flat plate-shaped metallic member 1. A surface of the sheet-like graphite 4 is unevenly formed to provide the operating fluid with capillary action. Thus, the heat from a heat generation source can be diffused by the sheet-like graphite at the temperature lower than the temperature where the circulating motion of the operating fluid is available. The condensed operating fluid can be moved by the unevenness of the sheet-like graphite surface. <P>COPYRIGHT: (C)2011,JPO&INPIT |
