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US 12,009,698 B2Granted
Rotor, electric motor, fan, and air conditioner
AssigneeMitsubishi Electric Corporation
InventorsTakaya Shimokawa, Hiroki Aso, Naoki Tamura
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Abstract
A rotor includes a plurality of cores stacked in an axial direction, a permanent magnet, and a nonmagnetic resin. The plurality of cores include a magnet insertion hole, a first opening communicating with one end of the magnet insertion hole in a circumferential direction, and an indent part communicating with the first opening and indented in the circumferential direction. The permanent magnet is disposed in the magnet insertion hole. The nonmagnetic resin is provided in the first opening and the indent part.
Claims19
A rotor comprising:
- a plurality of cores including a magnet insertion hole, a first opening communicating with one end of the magnet insertion hole in a circumferential direction, and an indent part communicating with the first opening and indented in the circumferential direction, the plurality of cores being stacked in an axial direction;
- a permanent magnet disposed in the magnet insertion hole;
- and
- a nonmagnetic resin provided in the first opening and the indent part, wherein
- the indent part is formed between two adjacent cores of the plurality of cores.
2 more elements
Dependencies are inferred from the claim text.