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Wireless power supply system and multi-layer shim assembly

  • US 9,209,627 B2
  • Filed: 08/25/2011
  • Issued: 12/08/2015
  • Est. Priority Date: 08/25/2010
  • Status: Active Grant
First Claim
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1. A multi-layer shim assembly for use in positioning an upper plurality of wireless power coils and a lower plurality of wireless power coils in a multi-layer coil array, said multi-layer shim assembly comprising:

  • a first shim layer including a first guide portion for aligning said upper plurality of wireless power coils in said multi-layer coil array and a first routing portion for routing electrical connections from each of said upper plurality of wireless power coils, wherein said first shim layer includes a major surface, and wherein said first guide portion includes a first wall portion extending from said major surface to define a first recess to simultaneously encompass said upper plurality of wireless power coils therein, said first wall portion encompassing said upper plurality including at least two wireless power coils; and

    a second shim layer joined with said first shim layer, said second shim layer including a second guide portion for aligning said lower plurality of wireless power coils in said multi-layer coil array and a second routing portion for routing electrical connections from each of said lower plurality of wireless power coils, wherein said second shim layer includes a major surface, and wherein said second guide portion includes a second wall portion extending from said major surface to define a second recess to simultaneously encompass said lower plurality of wireless power coils therein, said second wall portion encompassing said lower plurality including at least two wireless power coils,wherein said first guide portion and said second guide portion cooperate to align said plurality of wireless power coils in a predefined, overlapping, coil array, wherein said first recess is offset with respect to said second recess such that said upper plurality of wireless power coils is substantially axially offset with respect to said lower plurality of wireless power coils when received within said first and second recesses, respectively.

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