Invention Grant

Motor
Abstract:
A motor includes a stator having stacking coil units with a nonmagnetic body arranged between, and a rotatable rotor. Each of the coil units includes a coil, and a stator core. The coil includes an annular winding. The stator core is arranged to surround at least part of the winding. The stator core includes projections formed on axial ends of the stator core, alternately arranged in a circumferential direction, and projecting radially toward the rotor from the axial ends. The coil includes the winding and two leads extending from the winding. At least one of a first and a second of the two leads extends between stator cores of two of the coil units. A magnet pole is arranged in one of inner and outer circumferential portions of the stator core, and the first and second leads are arranged in an other one of inner and outer circumferential portions.
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