A.C. electric motors having a stator forming orthogonal magnetic

Details A.C. electric motors having a stator forming orthogonal magnetic A.C. electric motors having a stator forming orthogonal magnetic

1983-01-26

1988-07-19

Budd, Mark O.

Electrical generator or motor structure

Dynamoelectric

Rotary

H02K 1100

Patent

active

047587539

ABSTRACT:
A stator of an A.C. electric motor includes a magnetic core comprising a magnetic ring member and two "U"-shaped magnetic members connected to the ring member. The two "U"-shaped magnetic members hold the ring member therebetween and are angularly spaced from one another around the central axis of the ring member. A primary winding is wound on one of the two "U"-shaped member and a secondary winding is wound on the other "U"-shaped member. The secondary winding is short-circuited by a capacitor. When A.C. voltage is applied to the primary winding, A.C. voltage is induced on the secondary winding at a certain value or more of the primary voltage. A rotary flux is formed in the ring member by magnetic fluxes induced by primary and secondary A.C. currents. Accordingly, a cage rotor or magnet rotor which is rotatably disposed in the ring member can be rotated.

REFERENCES:
patent: 3716734 (1973-02-01), Fam
patent: 4185217 (1980-01-01), Grosu et al.

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