| 摘要 |
PROBLEM TO BE SOLVED: To provide a flat heat pipe capable of improving heat transport performance.SOLUTION: A flat heat pipe 1 includes: a reflux wick 11 that refluxes working fluid, condensed by a condensation part 4, to an evaporation part 3 with capillary force in a closed container 2 where working fluid is encapsulated; and a liquid diffusion wick 12 that diffuses working fluid, refluxed to the evaporation part by the reflux wick 11, into the evaporation part 3 with capillary force. The liquid diffusion wick 12 is provided only in the evaporation part 3, is recessed from an inner wall surface on which the reflux wick 11 is provided, and extends in a circumferential direction of the closed container 2.SELECTED DRAWING: Figure 1 |
