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Coil apparatus and method for inductive power transmission

  • US 9,987,936 B2
  • Filed: 05/08/2014
  • Issued: 06/05/2018
  • Est. Priority Date: 06/05/2013
  • Status: Active Grant
First Claim
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1. A coil apparatus (100) for inductive power transmission, comprising:

  • an electromagnetic coil (102) for emitting and/or picking up an electromagnetic field (112) on a transmission side (106) of the coil apparatus (100);

    a housing wall (104), which covers the coil (102) on the transmission side (106) and is transmissive to the electromagnetic field (112); and

    a housing medium (108) comprising any one or more of;

    a liquid, a gel, and a colored powder (114), wherein the housing medium (108) is enclosed by the housing wall (104) and operable to distribute itself to an exterior of the housing wall (104) when a through-opening (110) is formed in the housing wall (104).

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