Invention Grant
US08368273B2 Rotary electric machine with air gaps configured to cancel torque pulsations 有权
具有气隙的旋转电机被配置成消除扭矩脉动

Rotary electric machine with air gaps configured to cancel torque pulsations
Abstract:
A rotary electric machine includes a stator having stator windings; and a rotor rotatably disposed in the stator, said rotor having a rotor core provided with a plurality of magnets and a plurality of magnetic auxiliary salient poles formed between poles of the magnets. In this rotary electric machine: a magnetic air gap is provided in an axial direction of the rotor in a position shifted in a circumferential direction from a q axis passing through a center of the magnetic auxiliary salient pole within the magnetic auxiliary salient pole; and an amount of shifting the magnetic air gap from the q axis in the circumferential direction differs according to a position of the magnetic air gap in the axial direction so as to cancel torque pulsation in energization caused due to the magnetic air gap.
Information query
Patent Agency Ranking
0/0