US 11,715,983 B2
Magnetic alignment systems for electronic devices
Karl Ruben F. Larsson, Los Altos, CA (US); Aaron A. Oro, Palo Alto, CA (US); Timothy J. Rasmussen, San Jose, CA (US); Christopher S. Graham, San Francisco, CA (US); and Eric S. Jol, San Jose, CA (US)
Assigned to Apple Inc., Cupertino, CA (US)
Filed by Apple Inc., Cupertino, CA (US)
Filed on Sep. 22, 2020, as Appl. No. 17/28,231.
Claims priority of provisional application 63/061,752, filed on Aug. 5, 2020.
Claims priority of provisional application 62/907,332, filed on Sep. 27, 2019.
Prior Publication US 2021/0099026 A1, Apr. 1, 2021
This patent is subject to a terminal disclaimer.
Int. Cl. H02J 50/90 (2016.01); H02J 50/80 (2016.01); H02J 50/10 (2016.01); H04B 5/00 (2006.01); H02J 7/00 (2006.01); H02J 7/02 (2016.01); H02J 50/50 (2016.01); H02J 50/70 (2016.01)
CPC H02J 50/90 (2016.02) [H02J 7/00034 (2020.01); H02J 7/0042 (2013.01); H02J 7/02 (2013.01); H02J 50/10 (2016.02); H02J 50/80 (2016.02); H04B 5/0025 (2013.01); H04B 5/0031 (2013.01); H02J 50/50 (2016.02); H02J 50/70 (2016.02)] 9 Claims
OG exemplary drawing
 
1. An electronic device, comprising:
a housing having a charging surface;
an inductive coil disposed within the housing and having an axis normal to the charging surface, the inductive coil being configured to transfer power wirelessly through the charging surface; and
an annular magnetic alignment component disposed within the housing coaxial with and outboard of the inductive coil, the annular magnetic alignment component comprising a plurality of arcuate magnets, each arcuate magnet having:
an inner arcuate region having a magnetic polarity oriented in a first axial direction;
an outer arcuate region having a magnetic polarity oriented in a second axial direction opposite the first axial direction; and
a non-magnetized central arcuate region disposed between the inner arcuate region and the outer arcuate region.