Patent ID: 6933654

Claim:
A rotor of a rotating electric machine, said rotor comprising: a rotary shaft; a rotor coil surrounding the rotary shaft; a pair of pole core members having a plurality of claw-shaped magnetic poles extending like claws along an axial direction of the rotor at regular intervals around the rotor, each of the claw-shaped magnetic poles becoming thinner toward its extreme end forming an inclined inside surface facing the rotary shaft, and the pole core members being fitted on the rotary shaft with their claw-shaped magnetic poles directed face to face from front and rear sides and engaged with one another so that the claw-shaped magnetic poles surround the rotor coil; a plurality of magnets located on both sides of each of the claw-shaped magnetic poles such that each of the magnets produces a magnetic field oriented in a direction opposite to the direction of a magnetic flux formed between the adjacent claw-shaped magnetic poles; and a plurality of magnet mounting members for holding the magnets against both side surfaces of each of the claw-shaped magnetic poles; wherein each of the magnet mounting members has a generally C-shaped cross section including a plurality of magnet retaining portions formed on both sides for holding the magnets against the side surfaces of each of the claw-shaped magnetic poles and a middle portion having a platelike shape which matches the inclined inside surface of each of the claw-shaped magnetic poles, each of the magnet mounting members and the magnets fitted in the magnet retaining portions on both sides together forming a magnet assembly; wherein each of the claw-shaped magnetic poles of the pole core members has a stopper portion protruding toward the rotary shaft from the extreme end of each of the claw-shaped magnetic poles on the inclined inside surface; and wherein the magnet assembly is fixedly mounted on each of the claw-shaped magnetic poles with the middle portion of the magnet mounting member engaged with the stopper portion formed on the inclined inside surface of each of the claw-shaped magnetic poles.