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MOVABLE PORTION TRANSMISSION SYSTEM USING WIRELESS POWER TRANSMISSION

  • US 20170047787A1
  • Filed: 05/13/2014
  • Published: 02/16/2017
  • Est. Priority Date: 05/13/2014
  • Status: Active Grant
First Claim
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1. A movable portion transmission system using wireless power transmission which is performed via a rotary member, said movable portion transmission system comprising:

  • a primary transmission power supply to supply electric power;

    a transmitter and receiver configured with a transmission antenna to perform wireless transmission of the electric power from said primary transmission power supply, and a reception antenna to receive the electric power from said transmission antenna with which said reception antenna pairs up;

    a transmission power supply circuit to establish a resonance condition of said transmission antenna with which said transmission power supply circuit pairs up; and

    a reception power supply circuit to establish a resonance condition of said reception antenna with which said reception power supply circuit pairs up,wherein said transmission antenna comprises a transmission side coil in a spiral shape which is arranged while being centered at an axial center of said rotary member, and said reception antenna comprises a reception side coil in a spiral shape which is arranged with a gap therefrom to said transmission side coil while being centered at the axial center of said rotary member.

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