{
  "$type": "site.standard.document",
  "description": "In a non-contact power feeding apparatus 7 of the present invention, power is fed through an air gap G from a power transmission coil 8 of a power feeding side circuit 4 to a power receiving coil 9 of a power receiving side circuit 5, which are closely located to face each other, based on a mutual…",
  "path": "/patents/1001142",
  "publishedAt": "2012-06-20T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "B60L53/122",
    "SHOWA AIRCRAFT IND [JP]"
  ],
  "textContent": "In a non-contact power feeding apparatus 7 of the present invention, power is fed through an air gap G from a power transmission coil 8 of a power feeding side circuit 4 to a power receiving coil 9 of a power receiving side circuit 5, which are closely located to face each other, based on a mutual induction effect of electromagnetic induction. The power transmission coil 8 and the power receiving coil 9 are respectively composed of a planar assembly of a number of unit coils 8' and 9'. Each unit coil 8' (9') is formed in a spirally wound flat structure, wherein the direction of an electric current I is set in reverse to make the north and south magnetic poles reverse between each unit coil 8' (9') which is juxtaposed to another to directly come into line. As a result, the unit coils 8' (9'), which are juxtaposed to another to directly come into line, are provided in such a manner that an overlapping area of a respectively formed magnetic field H cancels another out to be offset.",
  "title": "Non-contact power feeding apparatus"
}