Patent ID: 11936247
Assignee: HONDA MOTOR CO., LTD.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A rotor comprising:
a rotor core; and
a magnet press-fitted into a magnet insertion hole provided in the rotor core,
wherein the magnet has:
a hard magnetic body; and
a resin layer that is laminated on the hard magnetic body, that is disposed on an outward side of the rotor core in a radial direction and that contains a soft magnetic body, and
the resin layer has a plurality of groove portions extending in a direction crossing an insertion direction,
the plurality of groove portions are formed by recessing the resin layer toward a surface of the hard magnetic body, and
a recessed depth of the plurality of groove portions gradually increases from a first groove portion toward a second groove portion, the first groove portion being provided outermost at a first side of the resin layer which is at a downstream side in the insertion direction when the magnet is press-fitted into the magnet insertion hole and the second groove portion being provided outermost at a second side of the resin layer which is at an upstream side in the insertion direction when the magnet is press-fitted into the magnet insertion hole.