Rotor of coreless motor and method of manufacturing same

Details Rotor of coreless motor and method of manufacturing same Rotor of coreless motor and method of manufacturing same

1977-08-29

1979-08-14

Hall, Carl E.

Electrical generator or motor structure

Dynamoelectric

Rotary

29597, 29598, 264272, 264277, 310 43, 310266, H02K 704

Patent

active

041646754

ABSTRACT:
A rotor is manufactured by disposing a commutator integral with a rotary shaft centrally within a casting jig, arranging a rotor coil around the commutator, and integrally molding the assembly in synthetic resin. The rotor coil comprises a coil wound on a bobbin formed with positioning openings. Guide pins are provided within the jig in the region of the rotor coil for fitting engagement with the positioning openings in the latter. When molding the rotor, the rotor coil is properly positioned as a result of the engagement between the guide pins and the mating openings, assuring the molding of a balanced rotor.

REFERENCES:
patent: 1917929 (1933-07-01), Duffy
patent: 3863336 (1975-02-01), Noto et al.
patent: 3993920 (1976-11-01), Sato
patent: 4080544 (1978-03-01), Aoki

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