Honda Motor Co., Ltd.
ROTOR OF ROTARY ELECTRIC MACHINE AND ROTARY ELECTRIC MACHINE

Abstract:

A rotor of a rotary electric machine includes a rotor core, and a ring member. The rotor core is fastened and fixed to the ring member. The outer circumferential surface of the rotor coreincludes a groove portion which is recessed radially inward at a position overlapping the q-axis in the circumferential direction, and a protruding portion which protrudes radially outward from the groove portion. The protruding portion is provided with a pair of flange portions which protrude toward the one side and the other side in the circumferential direction from a base end portion connected to the groove portion. An outer circumferential surface of a tip end portion of the protruding portion and outer circumferential surface of the pair of flange portions have an arc shape having the same center and the same diameter as the outer circumferential surface of the rotor core.