公开(公告)号：WO2021061671A1

公开(公告)日：2021-04-01

申请号：PCT/US2020/052045

申请日：2020-09-22

Applicant: APPLE INC.

Inventor： LARSSON, Karl Ruben Fredrik ,  ORO, Aaron A. ,  RASMUSSEN, Timothy J. ,  GRAHAM, Christopher S. ,  JOL, Eric S. ,  THOMPSON, Paul J. ,  KARANIKOS, Demetrios B. ,  DALY, Miranda L.

IPC: H02J7/00 ,  H02J50/00 ,  H02J50/10 ,  H02J50/90 ,  H04B5/00

Abstract: A magnetic alignment system can include a primary annular magnetic alignment component and a secondary annular magnetic alignment component. The primary alignment component can include an inner annular region having a first magnetic orientation, an outer annular region having a second magnetic orientation opposite to the first magnetic orientation, and a non-magnetized central annular region disposed between the primary inner annular region and the primary outer annular region. The secondary alignment component can have a magnetic orientation with a radial component.

公开(公告)号：EP3364433B1

公开(公告)日：2020-06-24

申请号：EP18150579.3

申请日：2018-01-08

Applicant: Apple Inc.

Inventor： LARSSON, Karl Ruben F. ,  JOL, Eris S. ,  GRAHAM, Christopher S. ,  ORO, Aaron A.

IPC: H01F38/14 ,  H01F27/36 ,  H01F27/22 ,  H02J50/70

公开(公告)号：EP3726700A1

公开(公告)日：2020-10-21

申请号：EP20160209.1

申请日：2020-02-28

Applicant: Apple Inc.

Inventor： POPE, Benjamin J. ,  DINH, Richard Hung Minh ,  TAN, Tang Yew ,  LEE, Sherry ,  ORO, Aaron A. ,  HAUG, Grant S. ,  LARSSON, Karl Ruben F. ,  GRAHAM, Christopher S.

IPC: H02J50/00 ,  H01F27/28 ,  H01F27/36 ,  H01F38/14 ,  H02J50/10 ,  H02J50/90

Abstract: Embodiments describe a portable electronic device that includes a housing having an interface surface and an inductor coil disposed within the housing and comprising a conductive wire wound in a plurality of turns about a center point and in increasing radii such that the inductor coil is substantially planar. The portable electronic device further includes charging circuitry coupled to the inductor coil and configured to operate the inductor coil to wirelessly receive power and wirelessly transmit power, control circuitry coupled to the charging circuitry and configured to instruct the charging circuitry to operate the inductor coil to wirelessly receive power and to wirelessly transmit power, and a device detection coil coupled to the control circuitry and configured to detect the presence of an external device on the charging surface, the device detection coil is configured to operate at a different frequency from the inductor coil.

公开(公告)号：EP3364433A1

公开(公告)日：2018-08-22

申请号：EP18150579.3

申请日：2018-01-08

Applicant: Apple Inc.

Inventor： LARSSON, Karl Ruben F. ,  JOL, Eris S. ,  GRAHAM, Christopher S. ,  ORO, Aaron A.

IPC: H01F38/14 ,  H01F27/36 ,  H01F27/22 ,  H02J50/70

Abstract: Embodiments describe a wireless power receiving module to receive magnetic flux for wireless power transfer. The wireless power receiving module includes a receiver coil comprising a single length of wire wound into a plurality of turns, an electromagnetic receiver shield coupled to a first side of the receiver coil, a ferrite layer coupled to a second side of the receiver coil opposite of the first side, the ferrite layer positioned to redirect magnetic flux during the charging event to improve charging efficiency, and a thermal mitigation shield comprising a thermally conductive layer adhered to an electrically conductive layer where the electrically conductive layer is coupled to ground, and where the ferrite layer is sandwiched between the thermal mitigation shield and the receiver coil.