Patent ID: 10848041

Abstract:
A rotating electric machine includes a stator and a rotor. The rotor includes: a field core having at least one boss portion, a pair of disc portions and a plurality of claw-shaped magnetic pole portions; a field coil arranged between the at least one boss portion and the claw-shaped magnetic pole portions; a plurality of permanent magnets each of which is arranged between one circumferentially-adjacent pair of the claw-shaped magnetic pole portions; and a ring-shaped fixing member fixed to radially inner parts of the claw-shaped magnetic pole portions to support the claw-shaped magnetic pole portions from the radially inner side. Moreover, a d-axis magnetic circuit and a magnet magnetic circuit are at least partially coincident with each other to share a common circuit portion. When field current is supplied to the field coil, the permeance of the d-axis magnetic circuit is lower than the permeance of a q-axis magnetic circuit.