COOLING APPARATUS, HEAT RECEIVING SECTION AND BOILING SECTION USED THEREIN, AND METHOD OF MANUFACTURING THE SAME

摘要

In order to maintain a high cooling capability even in a case where a heating element has a lower calorific value, a boiling section of a heat receiving section in a phase change cooling apparatus includes a comb-shaped structure and a porous layer provided on a bottom portion of the comb-shaped structure between fins of the comb-shaped structure. With such a boiling section, a liquid film of a liquid phase refrigerant is forcedly made thinner. Thus, the liquid phase refrigerant is changed in phase into a gaseous phase refrigerant even in a case of a small difference between the temperature of the gaseous phase refrigerant and the temperature of the heat receiving surface.

主权项

1. A boiling section operable to boil a liquid phase refrigerant with heat from a heating element to change the liquid phase refrigerant in phase into a gaseous phase refrigerant, comprising:
a comb-shaped structure having a bottom portion thermally connected to the heating element and a plurality of fins extending upward from the bottom portion; and a porous layer provided on the bottom portion between the fins of the comb-shaped structure, the porous layer having a number of small openings defined therein.