The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 02, 2019
Filed:
Sep. 08, 2017
Apple Inc., Cupertino, CA (US);
Christopher S. Graham, San Francisco, CA (US);
Demetrios B. Karanikos, San Francisco, CA (US);
Darshan R. Kasar, San Francisco, CA (US);
Paul J. Thompson, Mountain View, CA (US);
Eric S. Jol, San Jose, CA (US);
Grant S. Haug, Mountain View, CA (US);
Karl Ruben F. Larsson, Los Altos, CA (US);
Apple Inc., Cupertino, CA (US);
Abstract
Embodiments describe a wireless charging device including: a housing having a planar charging surface and one or more walls that define an interior cavity; a transmitter coil arrangement positioned within the interior cavity; and a faraday cage enclosing the transmitter coil arrangement. The faraday cage includes: an electromagnetic shield positioned between the transmitter coil arrangement and the first shell; an interconnection structure positioned within the interior cavity below the transmitter coil arrangement, the interconnection structure including a plurality of packaged electrical components mounted on the interconnection structure; a ferromagnetic shield positioned between the transmitter coil arrangement and the interconnection structure; and a conductive grounding fence disposed around a perimeter of the interconnection structure and between the electromagnetic shield and the interconnection structure.