WICK, LOOP-TYPE HEAT PIPE, COOLING DEVICE, ELECTRONIC APPARATUS, POROUS BODY MANUFACTURING METHOD, AND WICK MANUFACTURING METHOD

摘要

PROBLEM TO BE SOLVED: To provide a wick capable of further improving cooling performance of cooling means.;SOLUTION: A loop-type heat pipe 1 includes an evaporation portion 2 (heat receiving portion 7) changing a phase of a working fluid from a liquid phase to a gas phase, and a condensation portion 3 changing the phase of the working fluid from the gas phase to the liquid phase. A wick 6 used in the loop-type heat pipe 1 and disposed inside of the evaporation portion 2 is composed of a porous body. Bubbles existing on a cross-section obtained by cutting the porous body, have a dimension within a range of 0.1 [μm] or more and 50 [μm] or less, and composite bubbles formed by partially overlapping the spherical bubbles to each other, exist. The bubbles of pore diameters of 5 [μm] or more and 10 [μm] or less exist most in the composite bubbles, and a communication hole of 5 [μm] or less exists between the bubbles.;SELECTED DRAWING: Figure 5;COPYRIGHT: (C)2020,JPO&INPIT