Electrical micromotor

Details Electrical micromotor Electrical micromotor

1975-07-22

1978-03-14

Skudy, R.

Electrical generator or motor structure

Dynamoelectric

Rotary

310268, H02K 1900

Patent

active

040792790

ABSTRACT:
The invention relates to miniature electric motors, more particularly to monophase synchronous motors of the type the motor of which includes two pole pieces respectively polarized positively and negatively by the current circulating in an energizing coil, these pole pieces having each N teeth and defining a gap in which is placed a thin, disc-shaped rotor of hard magnetic material. The rotor comprises two annular coaxial portions magnetized with respectively N and N/2 pairs of alternately positive and negative poles.
These motors can be adapted to step-by-step working under constant sign pulse feed and are particularly suitable for use in cases where size and power consumption must be reduced to a minimum, such as in electric clockwork movements.

REFERENCES:
patent: 3435267 (1969-03-01), Beyersdorf
patent: 3469133 (1969-09-01), Stcherbatcheff
patent: 3469134 (1969-09-01), Beyersdorf
patent: 3539845 (1970-11-01), Stcherbatcheff
patent: 3614495 (1971-10-01), Suzuki
patent: 3678311 (1972-07-01), Matting
patent: 3784850 (1974-01-01), Inaba
patent: 3845335 (1974-10-01), Oguey
patent: 3860842 (1975-01-01), Schwab
patent: 3867656 (1975-02-01), Mitsui

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