| 摘要 |
A motor includes a permanent magnet unit at a circumference for providing a plurality of magnetic poles and a rotor disposed inside the circumference to be coaxial with the permanent magnet unit. Such a rotor is constituted of a center core, a plurality of coil cores disposed at the peripheral portions of the rotor and a plurality of concentrated coils respectively mounted on the coil cores. Each coil core is fitted to the center core by sliding along an axial direction of the center core.
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