Muncy, Geissler, Olds & Lowe, P.C.
Single phase permanent magnet motor and stator core thereof
A single phase permanent magnet motor includes a stator core, windings, and a permanent magnet rotor. The stator core includes an end portion and two spaced arm portions each including a connecting arm and a pole claw. Each pole claw has a long pole tip and a short pole tip, and forms a pole surface. The long pole tip of each pole claw corresponds to the short pole tip of the other pole claw with a slot opening formed there between. The slot opening causes the arc pole surface to be discontinued along a circumferential direction, and the arc pole surface is recessed inwardly to form a startup groove.
JOHNSON ELECTRIC INTERNATIONAL AG
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Chui You Yue Yong Yong
Zhou Li Li Wang