| 摘要 |
PROBLEM TO BE SOLVED: To provide a motor structure to increase an output torque without distorting a stator core. SOLUTION: The motor structure is obtained by press-fitting and fixing the cylindrical stator core 2a in a cylindrical casing 1. A groove 2d is formed on the outer circumferential surface of the stator core 2a along the axial direction, and a pin 1h of the casing 1 protruded inward is inserted into the groove 2d. Even when the fastening force of the press-fit portion 1f is lowered due to temperature rise, therefore, the stator core 2a functions as a whirl-stop for the casing 1 in the circumferential direction by the engagement between the pin 1h and the groove 2d. The motor M can generate large torque without fail even when temperature rises. COPYRIGHT: (C)2008,JPO&INPIT
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