{
  "$type": "site.standard.document",
  "description": "A rotor is provided, and is used in a permanent-magnet motor. The rotor includes a rotating shaft () and a rotor iron core () sleeved on the rotating shaft (). The rotor further includes several first permanent-magnet structures (), the several first permanent-magnet structures () are distributed…",
  "path": "/patents/1341199",
  "publishedAt": "2023-04-06T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "H02K1/2773",
    "HUAWEI TECHNOLOGIES CO., LTD."
  ],
  "textContent": "A rotor is provided, and is used in a permanent-magnet motor. The rotor includes a rotating shaft () and a rotor iron core () sleeved on the rotating shaft (). The rotor further includes several first permanent-magnet structures (), the several first permanent-magnet structures () are distributed on the rotor iron core () in a circumferential direction of the rotor iron core (), each first permanent-magnet structure () includes a first permanent magnet () and a second permanent magnet () that are disposed in a radial direction of the rotor iron core (), and coercive force of the first permanent magnet () is less than coercive force of the second permanent magnet ().",
  "title": "ROTOR, PERMANENT-MAGNET MOTOR, MOTOR DRIVE SYSTEM, AND VEHICLE"
}