| 摘要 |
PROBLEM TO BE SOLVED: To provide a heating body cooling structure which enables easy design and manufacturing of heat radiation fins without needing accurate dimensional control of the heat radiation fins.SOLUTION: A heating body cooling structure of the invention includes: a heating body; and a heat radiation device which is disposed so as to enable heat conduction with the heating body. The heat radiation device includes: a heat sink 22 which is disposed so as to enable heat conduction with the heating body; multiple heat radiation fins 23 which protrude from the heat sink 22 and are provided so as to extend in a predetermined direction along a surface of the heat sink; and a facing surface 32 which is disposed at a position separated from tips 23a of the multiple heat radiation fins 23 and faces the heat sink 22. A refrigerant 24 flows between the heat radiation fins 23 and the facing surface 32 in an arrangement direction a perpendicular to an extension direction of the heat radiation fins 23. |
