| 摘要 |
PROBLEM TO BE SOLVED: To simplify a supporting structure of a yoke while preventing the yoke from being deformed. SOLUTION: The motor 1 includes a stator 6 attached with a print coil 61 having a plurality of drive coils 63 in the circumferential direction around a shaft core X, and a rotor 5 attached with a magnet 58 of which magnetic pole alternately changes in the circumferential direction around the shaft core X. In the motor 1, the magnet 58 and the drive coils 63 are arranged with spacing in the axial direction of the shaft core X in a body case 2. The print coil 61 is disposed on a lower surface 4b of a cover member 4, and the cover member 4 has a back yoke 65 disposed nearer to an upper surface 4a than to the lower surface 4b in the axial direction of the shaft core X. COPYRIGHT: (C)2011,JPO&INPIT |
