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Wireless charging board and wireless charging device

  • US 10,476,316 B2
  • Filed: 01/21/2015
  • Issued: 11/12/2019
  • Est. Priority Date: 01/22/2014
  • Status: Active Grant
First Claim
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1. A wireless charging board comprising:

  • a shielding layer;

    a coil pattern disposed on one surface of the shielding layer;

    an adhesive layer interposed between the shielding layer and the coil pattern; and

    a magnetic pattern disposed on the adhesive layer and entirely within a space of a central part of the coil pattern,wherein the magnetic pattern is disposed on the same plane as the coil pattern,wherein a thickness of the magnetic pattern is equal to or less than a thickness of the coil pattern,wherein a relative permeability of the magnetic pattern is 10 to 100000,wherein a relative permeability of the shielding layer is 10 to 1000, andwherein a magnetic flux density of the magnetic pattern is 0.4 to 2.5 Tesla (T).

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