Multipolar stepping motor

Details Multipolar stepping motor Multipolar stepping motor

1989-08-09

1991-09-24

Stephan, Steven L.

Electrical generator or motor structure

Dynamoelectric

Rotary

310257, H02K 3700

Patent

active

050516337

ABSTRACT:
A multipolar rotor (11) is magnetized axially and comprises, in one of its faces situated opposite two pole pieces (1 and 2), alternate north and south poles distributed along its periphery. Each of the pole pieces has a concave inside rim provided with teeth (5) separated by interposed zones (6). A core (3), on which a coil (4) is mounted, magnetically couples the pole pieces to the coil. The pitch .alpha.s of the teeth of the pole pieces is different from the pitch .alpha.r of the poles of the rotor.

REFERENCES:
patent: 4386287 (1983-05-01), Karasawa et al.
patent: 4506182 (1985-03-01), Rohdin
patent: 4713565 (1984-07-01), Grosjean
patent: 4792709 (1988-12-01), Smith et al.

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