Self-starting synchronous motor with permanent magnet rotor

Details Self-starting synchronous motor with permanent magnet rotor Self-starting synchronous motor with permanent magnet rotor

1974-07-24

1976-08-31

Budd, Mark O.

Electrical generator or motor structure

Dynamoelectric

Rotary

310162, 310164, 310 49R, H02K 2112

Patent

active

039783561

ABSTRACT:
In the disclosed motor, completely or partially wound inwardly projecting stator poles form three or more pole pairs that surround a permanent magnet rotor. The stator poles per phase are grouped together into a single pole group with alternating north-south poles, and groupwise are arranged on the inner circumference of the stator so that a mechanical offset angle .delta..apprxeq. 180/mp+.epsilon. exists between the pole groups and the pole division angles .tau..rho. of the stator and rotor are equal or deviate from each other only slightly.

REFERENCES:
patent: 2432573 (1947-12-01), Jorgensen
patent: 2794137 (1957-05-01), Faus et al.
patent: 3396295 (1968-08-01), Rawcliffe et al.
patent: 3439200 (1969-04-01), Saito et al.
patent: 3524091 (1970-08-01), Suzuki et al.
patent: 3579277 (1971-05-01), Imahashi
patent: 3590353 (1971-06-01), Kobayashi et al.
patent: 3594785 (1971-07-01), Orenbuch
patent: 3604961 (1971-09-01), Saldinger
patent: 3790834 (1974-02-01), Tanaka
patent: 3866104 (1975-02-01), Heine

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