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Magnetic element for wireless power transmission and power supply device

  • US 9,390,849 B2
  • Filed: 03/02/2011
  • Issued: 07/12/2016
  • Est. Priority Date: 03/09/2010
  • Status: Expired due to Fees
First Claim
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1. A magnetic element for wireless power transmission, which generates an induced electromotive force by magnetic coupling, wherein:

  • in a cross section in a direction of the magnetic coupling, alternating conductor sections adapted to conduct an alternating current and magnetic material sections are arranged in parallel in a direction perpendicular to the direction of the magnetic coupling, wherein the conductor sections and the magnetic material sections are spiraled from an inner circumference side to an outer circumference side; and

    each of the conductor sections has at least one region protruding from the magnetic material section in the direction of the magnetic coupling, or each of the magnetic material sections has at least one region protruding from the conductor section in the direction of the magnetic coupling.

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