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Wireless power transmission device capable of forming magnetic field space, and magnetic field space formation method

  • US 10,305,328 B2
  • Filed: 09/24/2014
  • Issued: 05/28/2019
  • Est. Priority Date: 10/15/2013
  • Status: Active Grant
First Claim
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1. A wireless power transmission apparatus configured to supply power from a power-supplying module comprising at least a power-supplying resonator to a power-receiving module comprising at least a power-receiving resonator, by means of a resonance phenomenon,wherein setting is carried out so that a transmission characteristic with respect to the power-source frequency of the power, of the power-supplying resonator and the power-receiving resonator, has two peak bands,the power-source frequency of the power to be supplied to the power-supplying module is set to a power-source frequency band corresponding to any of the two peak bands of the transmission characteristic,thereby forming a magnetic field space nearby the power-supplying resonator and the power-receiving resonator, the magnetic field space having a magnetic field strength smaller than a strength of a surrounding magnetic field, andat least one of an electronic component and a rechargeable battery being provided in the magnetic field space.

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