Single phase stepping motor

Details Single phase stepping motor Single phase stepping motor

1978-02-09

1980-06-03

Duggan, Donovan F.

Electrical generator or motor structure

Dynamoelectric

Rotary

310163, 310154, 310156, H02K 3717

Patent

active

042063779

ABSTRACT:
A single phase stepping motor, particularly for clocks, with a disc-like, axially magnetized rotor with a number of poles and a stator, the latter being made of two stator parts connected with one another via a bridge part, the latter carrying the excitation winding, of which each stator part on its free end passes into a smaller number (in comparison to half of the rotor pole number) of main poles, the main poles being directed towards the face side of the rotor, at least a part of the main poles being provided with auxiliary poles. Both stator parts lie in a first plane at least in the region of the stator poles, and the rotor is arranged in a second plane parallel thereto. A return disc is disposed on a face side of the rotor, which faces away from the stator poles.

REFERENCES:
patent: 3878414 (1975-04-01), Harakawa
patent: 3900749 (1975-08-01), Carriker
patent: 4103191 (1978-07-01), Kawamura et al.

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