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NON-CONTACT POWER SUPPLY DEVICE, NON-CONTACT POWER RECEIVING DEVICE, AND NON-CONTACT POWER CHARGING SYSTEM

  • US 20120326662A1
  • Filed: 03/08/2011
  • Published: 12/27/2012
  • Est. Priority Date: 04/19/2010
  • Status: Abandoned Application
First Claim
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1. A contactless power transmitting device that supplies power in a contactless manner to a contactless power receiving device, the contactless power transmitting device comprising:

  • a primary coil that generates alternating magnetic flux, wherein the primary coil can be electromagnetically coupled by the alternating magnetic flux to a secondary coil of the contactless power receiving device;

    a first temperature sensor that detects a primary coil proximity temperature;

    a second temperature sensor that detects a temperature at a position that differs from where the first temperature sensor is located;

    a control unit that determines whether or not a value obtained by subtracting the temperature detected by the second temperature sensor from the primary coil proximity temperature detected by the first temperature sensor exceeds a predetermined threshold, wherein the control unit stops supplying power to the primary coil or issues a notification indicating an abnormality when the value obtained from the subtraction exceeds the threshold.

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