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Contactless power feeding system, movable device and method for controlling power feeding of contactless power feeding system

  • US 10,177,599 B2
  • Filed: 10/03/2013
  • Issued: 01/08/2019
  • Est. Priority Date: 10/31/2012
  • Status: Active Grant
First Claim
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1. A contactless power supplying system comprising:

  • a power supplying device includinga power supplying housing including a front surface, which is a power supplying surface that extends in a certain direction, anda primary coil arranged in the power supplying housing and extending in the certain direction, wherein the primary coil is configured to generate alternating flux when receiving high-frequency current; and

    a movable device including;

    a power receiving housing including a rear surface, which is a power receiving surface,a coupling member arranged on an upper surface of the power receiving housing so that the power receiving housing is arranged at a certain position where the power receiving surface faces the power supplying surface,a secondary coil arranged in the power receiving housing, wherein the secondary coil is configured to interlink with the alternating flux and generate induced voltage,a power circuit arranged in the power receiving housing, wherein the power circuit is configured to generate output voltage from the induced voltage, andan output terminal extending out of the power receiving housing via a connection wire, wherein the output terminal is configured to output the output voltage of the power circuit,wherein the coupling member includes a portion that a) extends above an upper surface of the power supply housing and b) includes a guided projection, wherein the upper surface of the power supplying housing, which is a coupling surface, includes a guide portion that is configured to guide movement of the power receiving housing and the coupling member in the certain direction by engaging in a movable manner with the guided projection.

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