Electric motor

Details Electric motor Electric motor

2005-03-22

2005-03-22

Schuberg, Darren (Department: 2834)

Electrical generator or motor structure

Dynamoelectric

Rotary

C310S043000, C310S233000, C310S234000, C310S062000, C310S064000, C310S0400MM

Reexamination Certificate

active

06870296

ABSTRACT:
A miniature PMDC motor has a wound rotor15comprising a rotor core16and a commutator17mounted on a shaft14. A cooling fan20is directly mounted onto the commutator17by use of a mechanical snap-fit type connection. Projections29on the commutator mate with recesses in the fan20to prevent relative rotational movement and detents including resilient fingers23and projection surfaces34hold the fan axially.

REFERENCES:
patent: 4859893 (1989-08-01), Wang
patent: 5053657 (1991-10-01), Ikegami et al.
patent: 5095239 (1992-03-01), Wang
patent: 5679996 (1997-10-01), Strobl
patent: 2 128 818 (1984-05-01), None
patent: 2128818 (1986-02-01), None
patent: 2 189 944 (1987-11-01), None
patent: 2 199 195 (1988-06-01), None
patent: 2 202 686 (1988-09-01), None
patent: 2189944 (1990-06-01), None

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