Electric motor having auxiliary portions distributed at a pitch

Details Electric motor having auxiliary portions distributed at a pitch Electric motor having auxiliary portions distributed at a pitch

1985-08-26

1987-06-30

Skudy, R.

Electrical generator or motor structure

Dynamoelectric

Rotary

310208, 310268, 310DIG6, H02K 300

Patent

active

046773320

ABSTRACT:
The winding of the motor comprises coils which may be formed by conductive paths deposited on the surface of an insulating substrate according to the printed circuit technique. Each turn of the coil comprises two active conductors extending radially, inside connections, and outside connections. The outside connections of the outer paths of the coil have a fret or meander shape, constituting three pairs of auxiliary conductor portions. Upon rotation of the rotor, these portions create in the winding induced voltages having a frequency three times the commutation frequency of the coils, the effect of which is to regularize the motor torque.

REFERENCES:
patent: 3487246 (1969-12-01), Long
patent: 4109170 (1978-08-01), Fujita
patent: 4220879 (1980-09-01), Hoshimi
patent: 4260920 (1981-04-01), Nakamura
patent: 4319152 (1982-03-01), van Gils
patent: 4361776 (1982-11-01), Hayashi
patent: 4568847 (1986-02-01), Schmider
Lindner, "Ein elektronisch kommutierter Scheibenlaufermotor", Feinwerktechnik & Messtechnik, 88 (1980) 4, 172.
Encyclopedia Americana, vol. 25, p. 199, 1968.

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