Single phase permanent magnet motor
AssigneeJohnson Electric International AG
InventorsYue Li, Chui You Zhou, Yong Wang, Yong Li
Life of this patent
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Abstract
A single phase permanent magnet motor includes a stator core and a permanent magnet rotor rotatably disposed in the stator core. The stator core includes an end portion and a pole arm extending from the end portion. The pole arm includes two connecting arms connected to the end portion and two pole claws formed at distal ends of the connecting arms. The permanent magnet rotor is disposed between the two pole claws. The rotor comprises a rotor core and a plurality of permanent magnets embedded in the rotor core, and the rotor core is made of a magnetic material.
Claims10
A single phase permanent magnet motor comprising:
- a stator core comprising an end portion and a pole arm extending from the end portion, the pole arm comprising two connecting arms connected to the end portion and two pole claws formed at distal ends of the connecting arms, and
- a permanent magnet rotor rotatably disposed in the stator core between the two pole claws, the rotor comprising a rotor core and a plurality of permanent magnets embedded in the rotor core, and the rotor core being made of a magnetic material;
- wherein an inner surface of the pole claws of the stator core is recessed inwardly to form two startup grooves, and the two startup grooves are offset from a central axis of the pole claws and are spaced 180 degrees in the circumferential direction.
Dependencies are inferred from the claim text.