{
  "$type": "site.standard.document",
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  "description": "An electric wheel assembly (100) with an integrated hub motor includes a tire (1), a rim (3), a hub (16), a planetary reducer (4), an inner rotor motor (5), a braking system (6) and a steering knuckle assembly (7). The inner rotor motor is provided in the rim, and its rotor (34) is hollow and…",
  "path": "/patents/1428024",
  "publishedAt": "2023-03-01T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "B60K17/046",
    "UNIV TSINGHUA [CN]"
  ],
  "textContent": "An electric wheel assembly (100) with an integrated hub motor includes a tire (1), a rim (3), a hub (16), a planetary reducer (4), an inner rotor motor (5), a braking system (6) and a steering knuckle assembly (7). The inner rotor motor is provided in the rim, and its rotor (34) is hollow and fitted over a motor rotor holder (36). An end of the motor rotor holder is mounted with a sun gear (15) to transmit power to the planetary reducer, and the other end thereof is mounted with a brake disc (21) of the braking system. The planetary reducer employs a tower-shaped gear, to achieve an arrangement of high reduction ratio within limited space. The planetary reducer further includes a planet carrier integrated with the hub, serving as a power output end connected to the rim. The hub and the knuckle sleeve (17) pass through the hollow motor rotor holder (36), and a hub bearing (24) is arranged thereamong, to carry large load with their own small weight. The inner rotor motor and the planetary reducer can employ an integrated direct oil cooling technology.",
  "title": "ELECTRIC WHEEL ASSEMBLY WITH INTEGRATED HUB MOTOR"
}