AXIAL GAP SQUIRREL CAGE INDUCTION ELECTRIC MOTOR

摘要

The stator (21) of the motor is of annular form, with generally radial slots (22) which receive the energizing 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.