US 11,949,251 B2
Wireless charging coil in wearable devices
Qi Tian, San Jose, CA (US); Liang Jia, Palo Alto, CA (US); Tressa Christie Scott, San Francisco, CA (US); and Srikanth Lakshmikanthan, Milpitas, CA (US)
Assigned to Google LLC, Mountain View, CA (US)
Filed by Google LLC, Mountain View, CA (US)
Filed on Oct. 8, 2020, as Appl. No. 17/065,595.
Prior Publication US 2022/0115918 A1, Apr. 14, 2022
Int. Cl. H02J 7/00 (2006.01); H02J 7/02 (2016.01); H02J 50/10 (2016.01); H02J 50/70 (2016.01)
CPC H02J 50/70 (2016.02) [H02J 7/02 (2013.01); H02J 50/10 (2016.02)] 9 Claims
OG exemplary drawing
 
1. A wireless power receiving system, comprising:
a shielding with a leading end and a trailing end, wherein a cut-out portion separates the leading end from the trailing end; and
a receiver coil attached to the shielding, wherein the receiver coil further comprises:
an inner wall and an outer wall connected by a lateral top surface of the receiver coil, wherein the inner wall defines a center opening in the receiver coil, wherein the inner wall of the receiver coil is sloped resulting in a conical in shape of the receiver coil,
wherein the shielding at least partially extends across the lateral top surface of the receiver coil, and wherein the cut-out portion of the shielding exposes a portion of the lateral top surface of the receiver coil.