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US 10,707,709 B2Granted
Rotor having magnets secured with plates and insulation in magnet holes
AssigneeToyota Jidosha Kabushiki Kaisha
InventorsHiroyuki Hattori, Ken Noda
Life of this patent
Estimating the term…
Abstract
A rotor includes a rotor core that is formed by stacking a plurality of steel plates each of which has an opening; a magnet that is inserted in a magnet hole formed by disposing the openings such that the openings overlap each other; and a magnetic plate that is disposed between an inner wall defining the magnet hole and the magnet so as to prevent contact between the inner wall defining the magnet hole and the magnet. At least a contact portion of the magnetic plate is subjected to an insulating process, the contact portion of the magnetic plate contacting the magnet.
Claims6
A rotor comprising:
- a rotor core that is formed by stacking a plurality of steel plates each of which has an opening;
- a magnet that is inserted in a magnet hole formed by disposing the openings such that the openings overlap each other;
- and
- a magnetic plate that is disposed between an inner wall defining the magnet hole and the magnet so as to prevent contact between the inner wall defining the magnet hole and the magnet, wherein
- at least a contact portion of the magnetic plate is subjected to an insulating process, the contact portion of the magnetic plate contacting the magnet.
2 more elements
Dependencies are inferred from the claim text.