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CONTACTLESS POWER TRANSFER APPARATUS

  • US 20140084697A1
  • Filed: 01/18/2012
  • Published: 03/27/2014
  • Est. Priority Date: 01/19/2011
  • Status: Active Grant
First Claim
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1. A contactless power transfer apparatus comprising:

  • one of a power transmission coil and a power reception coil opposing each other to perform contactless power transfer held in a case, wherein;

    the power transmission coil or the power reception coil held in the case includes a core and an electric wire, the core having magnetic pole portions at both ends and a wound portion around which the electric wire is wound between the magnetic pole portions, the electric wire being wound around the wound portion of the core; and

    ,the magnetic pole portions of the core are formed from a pair of parallel magnetic members, the wound portion of the core is formed of a magnetic member which is perpendicular to the magnetic pole portions, and the core is formed in H-shape by the pair of magnetic members constituting the magnetic pole portions and the magnetic member constituting the wound portion; and

    ,with reference to a position of a wide core surface of the wound portion, at a side opposing a counterpart coil, a height of a face of the magnetic pole portions opposing the counterpart coil of the core is equal to or greater than a height of an outer circumference of the electric wire wound around the wound portion, and at a side not opposing the counterpart coil, a height of a core face is less than the height of the outer circumference of the electric wire wound around the wound portion.

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