Braking mechanism for a shaded-pole motor

Details Braking mechanism for a shaded-pole motor Braking mechanism for a shaded-pole motor

1993-11-15

1995-08-22

LaBalle, Clayton E.

Electrical generator or motor structure

Dynamoelectric

Rotary

310103, H02K 7102, H02K 4900

Patent

active

054443172

ABSTRACT:
The rotor of a shaded-pole motor carries a braking ring with a radially projecting stop lug adapted to coact with a pivoted pawl to brake the rotor to a stop when the motor is de-energized. The pawl carries a pole piece which, upon energization of the motor, is magnetically attracted toward the stator thereof to cause the pawl to pivot to a released position clear of the stop lug. The braking mechanism requires relatively few components, and those components may be used universally either with a motor with a clockwise rotatable rotor or a motor in which the rotor rotates in a counterclockwise direction.

REFERENCES:
patent: 2539836 (1951-01-01), Hoffmann
patent: 3219858 (1965-11-01), Ellis et al.
patent: 3344292 (1967-09-01), Hurst
patent: 3379907 (1968-04-01), Hollinger
patent: 3478238 (1969-11-01), Herman et al.
patent: 3510704 (1970-05-01), Shaffer
Barber-Colman Company Drawings Nos. 3411-5639, dated Jan. 22, 1990.
Barber-Colman Company Drawings Nos. 3411-5655, dated Feb. 16, 1990.

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