| 摘要 |
PROBLEM TO BE SOLVED: To provide a radiator capable of performing a good radiating effect by thinning a radiating fin as thin as possible and assuring more surface areas and its forming method. SOLUTION: A cylindrical radiator comprises a plurality of radiating fins 13-18 each made of a cylindrical metal and having base ends for communicating with a cylinder 11, so that free ends are separated from the cylinder 11 by axially thinly cutting an outer surface or a front surface of an inner surface of the cylinder 11. In this case, a plurality of radiating fin groups 21-24 may be circumferentially formed at a predetermined interval. Thus, the radiator having a compact size and the high radiating effect can be obtained. |
