Coreless motor

Details Coreless motor Coreless motor

1976-10-12

1979-03-06

Duggan, Donovan F.

Electrical generator or motor structure

Dynamoelectric

Rotary

310 68R, 310154, 310268, H02K 704

Patent

active

041432886

ABSTRACT:
A coreless motor comprises a motor housing having a bearing, a rotor mounted within the housing, rotatably supported within the bearing and having a plurality of coils constituting a pancake coil, a permanent magnet stator mounted within the housing and disposed opposite to the rotor, in which the stator is arranged opposite to an effective coil section of the pancake coil and thus the rotor, and an annular spacing is formed opposite to an outer peripheral portion other than the effective coil section of the rotor so that a balance adjusting member for the rotor as well as an electrical part associated with the coreless motor can be provided in the annular spacing within the motor housing.

REFERENCES:
patent: 3090880 (1963-05-01), Raymond
patent: 3215876 (1965-11-01), Nichols et al.
patent: 3230406 (1966-01-01), Henry-Baudot
patent: 3231807 (1966-01-01), Willis
patent: 3312846 (1967-04-01), Henry-Baudot
patent: 3469128 (1969-09-01), Cartier
patent: 3892986 (1975-07-01), Allen
patent: 3993920 (1976-11-01), Sato

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