| 摘要 |
PROBLEM TO BE SOLVED: To provide a flat type heat pipe in which a liquid flow path where working fluid flows is assured without decreasing an area of a wick for vaporizing working fluid so as to improve a return flow characteristic.SOLUTION: This flat type heat pipe 1 transfers heat with working fluid evaporating through its heating and condensing while radiating heat. The heat pipe comprises a container 3 formed into a flat shape and having working fluid sealed therein and a wick 2 for generating capillary force for returning the working fluid of liquid phase to a position where it is evaporated. The wick 2 is fixed through sintering to one flat surface 3b at an inner part 3a of the container 3 over an entire longitudinal length of the container 3, the working fluid of gaseous phase may flow between the wick 2 fixed to one flat surface 3b and the other flat surface 3c at the inner part 3a of the container 3, and a groove part 8 for returning the working fluid of liquid phase to an evaporating position where the working fluid of liquid phase evaporates is formed along a longitudinal direction at the surface 2a of the wick 2 opposing against the other flat surface 3c. |
