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Foreign-matter-removing device, ground equipment for wireless power-supplying system, and wireless power-supplying system

  • US 9,902,279 B2
  • Filed: 10/28/2016
  • Issued: 02/27/2018
  • Est. Priority Date: 06/30/2014
  • Status: Active Grant
First Claim
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1. A foreign-matter-removing device for a wireless power-supplying system that supplies power from a power-transmitting coil to a power-receiving coil in a wireless manner, the foreign-matter-removing device comprising:

  • a flexible sheet that is movable along a top surface of a transmitting-side pad containing the power-transmitting coil;

    a ring-shaped coil that is disposed in the transmitting-side pad and generates a single-phase alternating current from an alternating magnetic field of the power-transmitting coil;

    a sheet-moving device that is driven by a single-phase alternating current and moves the sheet along the top surface of the transmitting-side pad; and

    a current supply control device that supplies the single-phase alternating current generated in the ring-shaped coil to the sheet-moving device and controls the sheet-moving device.

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