ROTARY ELECTRIC MACHINE AND DRIVING SYSTEM UTILIZING THE SAME

摘要

PROBLEM TO BE SOLVED: To improve motor efficiency while maintaining high reliability of centrifugal force resistance.

SOLUTION: A rotary electric machine comprises: a cylindrical rotor 4 coupled to a rotation shaft 3; and a stator 5 arranged at the outer periphery of the rotor 4 with a prescribed gap. The stator 5 has a first and a second three-phase windings 7-1 and 7-2 having different numbers of poles respectively and wound around the stator 5. The rotor 4 has a rotor core 4a which is formed of laminated magnetic steel sheets and whose outer peripheral surface is configured to have a magnetically uneven structure. Grooves extending along the axis up to both ends in the axial direction are formed in each salient part of the uneven structure. Secondary conductors 8 are inserted in the grooves to be electrically connected to each other at the ends of the rotor core 4a in the axial direction.

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