Permanent magnet motor

Details Permanent magnet motor Permanent magnet motor

2005-04-05

2005-04-05

Mullins, Burton (Department: 2834)

Electrical generator or motor structure

Dynamoelectric

Rotary

C310S254100

Reexamination Certificate

active

06876116

ABSTRACT:
A permanent magnet motor having a rotor with permanent magnets disposed on the outer circumferential face at a predetermined interval in a peripheral direction, and a stator with magnetic pole pieces arranged at a predetermined spacing in the peripheral direction, the magnetic pole pieces being opposed to the permanent magnets, the stator surrounding the rotor, wherein auxiliary grooves are provided on a face of each magnetic pole piece of the stator opposed to the permanent magnets of the rotor, and a skew having an electric angle in a range of 61° to 84° is provided relatively between the rotor and the stator.

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J.R. Hendershot, Jr., et al., “Design of Brushless Permanent-Magnet Motors”, Magna Physics Publishing and Clarendon Press, Oxford 1994.

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