Patent ID: 8067867
Filing Date: 2011-11-29
Classification: H02K

Abstract:
1. A motor comprising: a stator including a plurality of motor coils, the motor coils comprising a plurality of U-phase coils, a plurality of V-phase coils and a plurality of W-phase coils, which are arranged in a circumferential direction of the motor; and a neutral bus ring configured to connect the motor coils, the neutral bus ring is divided into a plurality of bus ring members, and each bus ring member connects together any one of the U-phase coils, any one of the V-phase coils, and any one of the W-phase coils; and a detecting unit configured to detect a wire breakage in one of the motor coils according to an amount of change in any one of resistance and inductance of the motor coil, the amount of change being derived from at least one of a change of current and/or a change of voltage in one of the motor coils when currents and voltages of a plurality of phases are distributed to the motor coils.