Flat coreless motor with tachogenerator

Details Flat coreless motor with tachogenerator Flat coreless motor with tachogenerator

1980-12-05

1983-05-24

Duggan, Donovan F.

Electrical generator or motor structure

Dynamoelectric

Rotary

310268, 310156, 310113, H02K 1100

Patent

active

043852491

ABSTRACT:
A flat coreless motor and tachogenerator assembly comprises a rotary motor comprised of a disk-shaped rotor having a plurality of coreless coils, a shaft connected to the rotor, a stator magnet magnetically coupled to the rotor, and a housing containing therein the rotor and stator magnet. The shaft is rotatably supported at one end by a bearing holder which has a closed end portion and a tubular portion extending from the closed end portion into the housing. A bearing disposed within the closed end portion of the bearing holder rotatably mounts the end of the shaft. A tachogenerator is disposed between the motor and the bearing and comprises a tachogenerator rotor connected to the shaft and positioned within the interior of the bearing holder tubular portion, and a tachogenerator stator disposed within the interior of the bearing holder tubular portion in spaced-apart magnetically coupled relationship with respect to the tachogenerator rotor.

REFERENCES:
patent: 3646376 (1972-02-01), Anderson
patent: 3868521 (1975-02-01), Schlicker et al.
patent: 4079277 (1978-03-01), Osanai
patent: 4093882 (1978-06-01), Furuta
patent: 4174484 (1979-11-01), Schmider
patent: 4237394 (1980-12-01), Aoki

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