Muncy, Geissler, Olds & Lowe, P.C.
Single phase permanent magnet motor
A single phase permanent magnet motor includes a stator. The stator includes a stator core and windings. The stator core includes a ring portion, tooth bodies extending radially from the ring portion, and a pole shoe extending from a distal end to two circumferential sides of each tooth body. Each pole shoe defines a positioning slot. A center of each positioning slot is offset from a center of symmetry of one adjacent tooth body so that a torque fluctuation of an output torque of the single phase permanent magnet motor during operation is less than 50%. As a result, the motor vibration and noise are small.
Johnson Electric International AG
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Yong Yong Chui You Yue Jie Tao
Wang Li Zhou Li Chai Zhang