Patent ID: 11901771
Assignee: MITSUBISHI ELECTRIC CORPORATION
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H | IPC H

Claim 6:
7. A rotating electric machine, comprising:
a stator; and
a rotor provided so as to be rotatable relative to the stator,
wherein the rotor includes:
a rotor core;
an axial end part provided at an end portion of the rotor core in an axial direction of the rotor;
a rotor magnet that is inserted into an insertion hole formed so as to pass through the rotor core in the axial direction, and is fixed to both of the rotor core and the axial end part; and

a rotor winding that is coiled around the rotor magnet, and is inserted into the insertion hole together with the rotor magnet,
wherein the axial end part has a recessed portion in which an end portion of the rotor magnet in the axial direction is to be inserted,
wherein the rotor magnet includes, as side surfaces along the axial direction, a first side surface and a second side surface different from the first side surface,
wherein the first side surface is fixed to a first inner wall surface of the insertion hole opposed to the first side surface,
wherein in a cross section perpendicular to the axial direction, a width of the first inner wall surface along the first side surface is larger than a width of the first side surface,
wherein the second side surface is fixed to a second inner wall surface of the recessed portion opposed to the second side surface, and
wherein in the cross section perpendicular to the axial direction, a width of the second inner wall surface along the second side surface is larger than a width of the second side surface.