Noncontact electric power receiving device, noncontact electric power transmitting device, noncontact electric power feeding system, and vehicle

{
  "publication_number": "US2011254376A1",
  "country": "US",
  "kind": "A1",
  "title": "Noncontact electric power receiving device, noncontact electric power transmitting device, noncontact electric power feeding system, and vehicle",
  "abstract": "In a noncontact electric power feeding system using a resonance method, electrical equipment installed within a coil case is configured to include an electric power receiving antenna and a rectifier in an integrated manner. The electrical equipment is driven by receiving electric power from an electromagnetic field generated by electromagnetic resonance, without power supply from the outside of the coil case.",
  "claims": [
    "1. A noncontact electric power receiving device receiving electric power via an electromagnetic field generated by electromagnetic resonance with an electric power transmitting device, comprising: an electric power receiving unit receiving electric power transmitted from said electric power transmitting device, by electromagnetic resonance; a case housing said electric power receiving unit therein; and electrical equipment installed within said case, said electrical equipment including an electric power receiving antenna receiving electric power from said electromagnetic field, and an electric load using the electric power received by said electric power receiving antenna. 2. The noncontact electric power receiving device according to claim 1, wherein said case has an electromagnetic shielding material for preventing leakage of said electromagnetic field to surroundings. 3. The noncontact electric power receiving device according to claim 2, wherein said electromagnetic shielding material is provided with an opening in a surface of said case facing said electric power transmitting device. 4. The noncontact electric power receiving device according to claim 2, wherein said electrical equipment further includes a rectifier receiving and rectifying the electric power received by said electric power receiving antenna. 5. The noncontact electric power receiving device according to claim 4, wherein said electric load includes at least one of an indication device, a cooling device, a temperature detection device, and an electrically powered pump. 6. A noncontact electric power feeding system feeding electric power from a power source from an electric power transmitting device to an electric power receiving device via an electromagnetic field generated by electromagnetic resonance, said electric power receiving device including the noncontact electric power receiving device according to claim 1. 7. A noncontact electric power transmitting device transmitting electric power from a power source to an electric power receiving device via an electromagnetic field generated by electromagnetic resonance with said electric power receiving device, comprising: an electric power transmitting unit transmitting said electric power to said electric power receiving device by electromagnetic resonance; a case housing said electric power transmitting unit therein; and electrical equipment installed within said case, said electrical equipment including an electric power receiving antenna receiving electric power from said electromagnetic field, and an electric load using the electric power received by said electric power receiving antenna. 8. The noncontact electric power transmitting device according to claim 7, wherein said case has an electromagnetic shielding material for preventing leakage of said electromagnetic field to surroundings. 9. The noncontact electric power transmitting device according to claim 8, wherein said electromagnetic shielding material is provided with an opening in a surface of said case facing said electric power receiving device. 10. The noncontact electric power transmitting device according to claim 8, wherein said electrical equipment further includes a rectifier receiving and rectifying the electric power received by said electric power receiving antenna. 11. The noncontact electric power transmitting device according to claim 10, wherein said electric load includes at least one of an indication device, a cooling device, a temperature detection device, and an electrically powered pump. 12. A noncontact electric power feeding system feeding electric power from a power source from an electric power transmitting device to an electric power receiving device via an electromagnetic field generated by electromagnetic resonance, said electric power transmitting device including the noncontact electric power transmitting device according to claim 7. 13. A vehicle, comprising: a noncontact electric power receiving device receiving electric power from a power source external to said vehicle via an electromagnetic field generated by electromagnetic resonance with an electric power transmitting device external to said vehicle, and an electrical drive apparatus receiving the electric power received by said noncontact electric power receiving device to generate driving force for traveling said vehicle, said noncontact electric power receiving device including an electric power receiving unit receiving electric power transmitted from said electric power transmitting device, by electromagnetic resonance, a case housing said electric power receiving unit therein, and electrical equipment installed within said case, said electrical equipment including an electric power receiving antenna receiving electric power from said electromagnetic field, and an electric load using the electric power received by said electric power receiving antenna. 14. The vehicle according to claim 13, wherein said case has an electromagnetic shielding material for preventing leakage of said electromagnetic field to surroundings, and said electromagnetic shielding material is provided with an opening in a surface of said case facing said electric power transmitting device. 15. The vehicle according to claim 14, wherein said electrical equipment further includes a rectifier receiving and rectifying the electric power received by said electric power receiving antenna, and said electric load includes at least one of an indication device, a cooling device, a temperature detection device, and an electrically powered pump."
  ],
  "cpc": [
    "B60L 5/005",
    "B60L 2270/147",
    "B60L 53/122",
    "B60M 7/003",
    "H02J 50/12",
    "H02J 50/70",
    "Y02T 10/70",
    "Y02T 10/7072",
    "Y02T 90/12",
    "Y02T 90/14"
  ],
  "assignees": [
    "TOYOTA MOTOR CO LTD"
  ],
  "filing_date": "2009-03-18",
  "publication_date": "2011-10-20",
  "priority_date": "2009-03-18",
  "application_number": "US-200913060352-A",
  "family_id": "42739319",
  "citations": [
    "US2010328044A1",
    "US2011254378A1",
    "WO2008050260A1"
  ]
}