Electromagnetic motor

Details Electromagnetic motor Electromagnetic motor

1981-01-29

1986-02-18

Duggan, Donovan F.

Electrical generator or motor structure

Dynamoelectric

Rotary

310156, H02K 3700

Patent

active

045715165

ABSTRACT:
The motor comprises a stator formed in one piece and having an opening formed therein, a yoke of high magnetic permeability and a coil wound round the yoke. The rotor comprises a shaft and a bar magnet. The opening has a first part all points of which are disposed at a first distance from the rotation axis of the rotor and a second part the points of which are disposed at second distances, different from the first distance, from that rotation axis. The invention is applicable particularly to stepping motors having a low consumption of electric current, e.g. for time pieces.

REFERENCES:
patent: 3588888 (1971-06-01), Harden
patent: 4205244 (1980-05-01), Fukushima

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