Miniature motor with preassembled commutator

Details Miniature motor with preassembled commutator Miniature motor with preassembled commutator

1994-05-02

1995-08-29

Skudy, R.

Electrical generator or motor structure

Dynamoelectric

Rotary

310234, 310235, 310236, H02K 1304

Patent

active

054463289

ABSTRACT:
A miniature motor in which stators are mounted in an interior of a casing, and a preassembled commutator is provided on a rotor rotatably disposed to face the stators. The commutator has a sleeve body having a cylindrical portion provided with a flanged portion and a plurality of recesses, directed outwardly, in a side wall of the flanged portion, with the sleeve body being made of insulating material and mounted on a rotary shaft of the rotor. The commutator also has a plurality of conductive commutator pieces each having a body portion formed in an arcuate shape and mounted on an outer circumferential surface of the cylindrical portion, a terminal portion and at least one retainer portion, with each of the terminal portion and the retainer portion being received in the recesses.

REFERENCES:
patent: 2322020 (1943-06-01), Hemphil
patent: 4833357 (1989-05-01), Tamura et al.
patent: 4855632 (1989-08-01), Baines
patent: 5272404 (1993-12-01), Yuhi et al.
patent: 5357159 (1994-10-01), Hagiwara et al.

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