CPC G06F 1/203 (2013.01) [F28D 15/0266 (2013.01); F28D 15/043 (2013.01); F28D 15/046 (2013.01); H01L 23/427 (2013.01); F28F 3/086 (2013.01); H01L 2224/16225 (2013.01)] | 11 Claims |
1. A loop heat pipe comprising:
an evaporator configured to vaporize a working fluid;
a condenser configured to liquefy the working fluid;
a liquid line connecting the evaporator and the condenser; and
a vapor line connecting the evaporator and the condenser; wherein
the evaporator, the condenser, the liquid line, and the vapor line form a loop-shaped flow path through which the working fluid flows;
the evaporator, the condenser, the liquid line, and the vapor line are formed by stacking a lowermost metallic layer, an uppermost metallic layer, and an intermediate layer set provided between the uppermost metallic layer and the lowermost metallic layer, the intermediate layer set being formed of a plurality of metallic layers including a first metallic layer and a second metallic layer provided on the first metallic layer;
the first metallic layer includes
a pair of first walls forming walls of the evaporator, the condenser, the liquid line, and the vapor line,
a first opening penetrating the first metallic layer, and
a second opening penetrating the first metallic layer;
the second metallic layer includes
a pair of second walls forming walls of the evaporator, the condenser, the liquid line, and the vapor line,
a third opening penetrating the second metallic layer, and
a fourth opening penetrating the second metallic layer;
the first opening and the third opening are disposed to coincide with each other in a plan view;
the second opening and the fourth opening are disposed to partially overlap each other in a plan view, such that the second opening is in communication with the fourth opening;
the first opening and the third opening form a first portion of the flow path;
the second opening and the fourth opening form a second portion of the flow path; and
the communication between the second opening and the fourth opening is narrower than the communication between the first opening and the third opening.
|