Washing machine motor with high rotor resistance

Details Washing machine motor with high rotor resistance Washing machine motor with high rotor resistance

1990-02-12

1991-04-09

Cuchlinski, Jr., William A.

Textiles: fluid treating apparatus

Machines

Impulsing

68 237, D06F 100, D06F 3738

Patent

active

050053833

ABSTRACT:
A washing machine motor having a high resistance rotor to provide high starting torque and low starting current. The permanent split capacitor motor is linked by a speed reducer to the agitator, and a controller alternately reverses the drive direction of the motor to provide the agitator with a relatively high stroke rate such as 60 strokes per minute. In such application, the motor runs cooler than a conventional motor with low rotor resistance because the frequency of starts is high, and, notwithstanding the fact that a high rotor resistance motor is inefficient at running speed, the high rotor resistance motor generates less heat in the critical thermal loading start-up mode.

REFERENCES:
patent: 4662193 (1987-05-01), Honda
patent: 4765160 (1986-08-01), Yamamoto et al.
patent: 4779431 (1988-10-01), Burk et al.
patent: 4806717 (1989-02-01), Hershberger
patent: 4886990 (1989-12-01), Barker
patent: 4910979 (1990-03-01), Burk et al.

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