| 摘要 |
PROBLEM TO BE SOLVED: To provide a cooling device of which the size and weight and the number of assembling processes can be reduced. SOLUTION: This cooling device comprises a brushless DC motor consisting of rotors 4 (41, 42) composed of an annular permanent electrode having a plurality of paired magnetic poles, a pair of yokes 51 and 52 situated, deviated in an electric angle of 180 deg., and a stator assembly 5 having a coil to excite the yokes 51 and 52; and a fan 6 formed by blanking a stainless sheet and bending it by a press work and mounted on the rotor 4. |
