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Contactless electricity-supplying device

  • US 9,130,388 B2
  • Filed: 11/12/2010
  • Issued: 09/08/2015
  • Est. Priority Date: 01/21/2010
  • Status: Expired due to Fees
First Claim
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1. A contactless electricity-supplying device comprising:

  • a plurality of electricity-supplying coils;

    DC/AC converters that convert an output voltage from a DC supplying unit into AC voltages to be applied to the electricity-supplying coils;

    at least two electricity-receiving coils selectively and detachably mounted in parallel on positions where the electricity-receiving coils are electromagnetically coupled to the electricity-supplying coils to receive AC voltages from the corresponding electricity-supplying coils in a contactless manner;

    a plurality of rectifying/smooth units that each convert an AC voltage output from each electricity-receiving coil into a DC voltage and smooth the DC voltage;

    a switching device that connects the DC voltages output from the rectifying/smoothing units to a single load;

    electricity-reception detection sensors for detecting that the electricity-receiving coils receive the AC voltages from the corresponding electricity-supplying coils; and

    a control unit that turns on the switching device when it is detected that all of the electricity-receiving coils receive the AC voltages from the corresponding electricity-supplying coils.

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