H - Electricity – 02 – K
Patent
H - Electricity
02
K
310/85
H02K 17/16 (2006.01) H02K 3/06 (1980.01)
Patent
CA 1161089
ABSTRACT AXIAL GAP SQUIRREL CAGE INDUCTION ELECTRIC MOTOR The stator (21) of the motor is of annular form, with generally radial slots (22) which receive the energising windings. The squirrel cage of the rotor has a magnetic component (16) and a conductive component comprising inner ring (10) and outer ring (12) joined by bars (14). The bars (14) are curved so as to follow a path with a higher radial component at the inner end than at the outer end. This reduces perceived noise by avoiding sharp registering of the rotor bars with the stator slots, and also by providing a more uniform ratio of magnetic to conductive material in the rotor at different radii around the rotor axis.
362708
Addicott Roy W.
Capaldi Bernard
Ridout & Maybee Llp
Sealed Motor Construction Company Limited
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