| CPC F28D 15/043 (2013.01) | 9 Claims |
|
1. A loop heat pipe comprising:
an evaporator that vaporizes a working fluid;
a condenser that condenses the working fluid;
a liquid pipe that connects the evaporator and the condenser to each other;
a vapor pipe that connects the evaporator and the condenser to each other; and
a loop-like flow channel that is provided in each of the evaporator, the condenser, the liquid pipe, and the vapor pipe, and through which the working fluid flows,
wherein
at least one of the evaporator, the condenser, the liquid pipe and the vapor pipe comprises a first outer metal layer, a second outer metal layer, and an inner metal layer that is provided between the first outer metal layer and the second outer metal layer, and
the inner metal layer comprises a porous body, wherein
the porous body comprises
a first bottomed hole formed in one face of the inner metal layer,
a second bottomed hole formed in the other face of the inner metal layer,
a pore, wherein the first bottomed hole and the second bottomed hole partially communicates with each other through the pore, and
a first convex portion provided inside the first bottomed hole, wherein
the first convex portion has a proximal end connected to a bottom face of the first bottomed hole and a distal end provided on an opposite side to the proximal end in a thickness direction of the first convex portion,
the first convex portion is provided at a center of the first bottomed hole in plan view, and the first convex portion has a side surface connecting the proximal end to the distal end, the side surface being spaced apart from an inner wall of the first bottomed hole, and
the distal end of the first convex portion is provided at a position further recessed toward the bottom face of the first bottomed hole than the one face of the inner metal layer.
|