| 摘要 |
PROBLEM TO BE SOLVED: To provide a motor which can obtain suitable rotary drive, without requiring high-accuracy position detection and current control, while prolonging the lifetime of the motor by employing the non-contact power feed structure.SOLUTION: A rectifier 17 constituted by aligning a plurality of primary-side coils 20 and secondary-side coils 18, which generate a drive power by electromagnetic induction in the rotating direction of a rotor 13, is arranged at the rotor 13, and driving coils 16 of the secondary-side coils 18 and the rotor 13 are made conducting between the corresponding driving coils. The drive power generated at the secondary-side coil 18 is fed to each drive coil 16 to generate a magnetic field; the rectifier 17 is corotated with the rotor 13 by the magnetic field; the secondary-side coils 18 opposing the primary-side coils 20 are sequentially moved to change the feed mode of the drive power to each driving coil 16; and the magnetic field for rotating each driving coil 16 is generated. |
