Permanent magnet synchronous machine

Details Permanent magnet synchronous machine Permanent magnet synchronous machine

2006-11-28

2006-11-28

Nguyen, Tran (Department: 2834)

Electrical generator or motor structure

Dynamoelectric

Rotary

C310S162000

Reexamination Certificate

active

07141905

ABSTRACT:
A permanent magnet synchronous machine includes a stator, and a rotor which defines with the stator an air gap. The stator includes a plurality of teeth which are disposed in spaced-apart circumferential relationship and separated from one another by a tooth pitch. Each of the teeth has a shaft which terminates in a tooth head adjacent the air gap, with the tooth heads of neighboring teeth being separated from one another by a slot. The tooth heads are constructed to prevent saturation. The rotor has permanent magnets which are aligned in flux concentration direction and arranged to define a pole pitch, wherein a pitch ratio of tooth pitch to pole pitch is ≧2.5.

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