Hybrid stepping motor

Details Hybrid stepping motor Hybrid stepping motor

1996-09-26

1998-11-10

Stephan, Steven L.

Electrical generator or motor structure

Dynamoelectric

Rotary

310 67R, 310164, 310112, 310114, H02K 3700

Patent

active

058348654

ABSTRACT:
A hybrid stepping motor according to the present invention has coils wound on stator yokes arranged on a fixed shaft or coils arranged on the inner peripheral surface of stator yokes. For this reason, the coils can be easily formed, a coil mounting density higher than that by a conventional technique can be obtained, and cost reduction can be obtained. An auxiliary magnetic plate and an auxiliary magnet are arranged on both the sides of a stator yoke member to form magnetic circuits at both the ends of the stator yoke member. Therefore, motors having various numbers of phases can be obtained, and a core are partially or entirely constituted by a non-layered structure, thereby improving torque/current characteristics.

REFERENCES:
patent: 3671841 (1972-06-01), Hoffmann
patent: 4127802 (1978-11-01), Johnson
patent: 4501980 (1985-02-01), Welburn
patent: 4952859 (1990-08-01), Torisawa et al.
patent: 4963775 (1990-10-01), Mori
patent: 5289066 (1994-02-01), Clark
patent: 5506458 (1996-04-01), Pace et al.

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