| 摘要 |
PROBLEM TO BE SOLVED: To provide a rotor unit of a motor that has good precision, and needs only small man-hours for assembly. SOLUTION: A rotor unit 100 is an inner rotor type brushless motor, and is characterized in that a cylindrical yoke 1 having a through hole through which a rotating shaft penetrates is formed; a rotor 10 having a magnet 2 incorporated along the through hole in the interior of the yoke 1; an impeller 20 provided on one end side of the rotor 10; and a bearing 30, formed on inner side than the through hole, for supporting the rotating shaft on the other end side of a rotor 10 of a rotating shaft insertion hole 3 that communicates the rotor 10 and the impeller 20, and on the impeller 20 side, are integrally molded by resin materials. COPYRIGHT: (C)2007,JPO&INPIT
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