{
  "$type": "site.standard.document",
  "description": "An axial gap type electric rotating machine includes a rotor arranged to rotate about an axis of rotation, and a stator arranged so as to face the rotor with a predetermined gap in an axial direction of the axis of rotation. The rotor includes a back yoke and an annular rare earth bonded magnet…",
  "path": "/patents/977162",
  "publishedAt": "2014-03-19T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "B60L15/2036",
    "YAMAHA MOTOR CO LTD [JP]"
  ],
  "textContent": "An axial gap type electric rotating machine includes a rotor arranged to rotate about an axis of rotation, and a stator arranged so as to face the rotor with a predetermined gap in an axial direction of the axis of rotation. The rotor includes a back yoke and an annular rare earth bonded magnet made of a circumferentially continuous member fixed to the back yoke. The magnet is magnetized so that an N-pole and an S-pole of magnetic poles are arranged alternately in a circumferential direction, and includes cutout portions formed between adjacent magnetic poles. The stator includes a plurality of tooth portions arranged along a circumferential direction so as to face the magnet and a winding wound on the tooth portions. Each tooth portion has a pair of side protruded portions each formed at a tip end portion facing the magnet so as to extend in the circumferential direction.",
  "title": "Axial gap type electric rotating machine, electric wheelchair and electric bicycle"
}