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    WIRELESS CHARGING SYSTEMS FOR ELECTRONIC DEVICES
    1.
    发明公开
    WIRELESS CHARGING SYSTEMS FOR ELECTRONIC DEVICES 审中-公开

    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

    申请人： Apple Inc.

    发明人： 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分类号： H02J50/00 ,  H01F27/28 ,  H01F27/36 ,  H01F38/14 ,  H02J50/10 ,  H02J50/90

    摘要： 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.

    FARADAY CAGE FOR WIRELESS CHARGING DEVICES
    2.
    发明公开
    FARADAY CAGE FOR WIRELESS CHARGING DEVICES 审中-公开

    公开(公告)号：EP3451495A1

    公开(公告)日：2019-03-06

    申请号：EP18178206.1

    申请日：2017-09-11

    申请人： Apple Inc.

    发明人： GRAHAM, Christopher S. ,  KARANIKOS, Demetrios B. ,  JOL, Eric S. ,  LARSSON, Karl Ruben F. ,  THOMPSON, Paul J. ,  KASAR, Darshan R. ,  HAUG, Grant S. ,  KOWALSKI, Stefan A.

    IPC分类号： H02J50/70 ,  H02J50/40 ,  H02J50/10 ,  H02J7/00

    摘要： Embodiments describe a wireless charging device that includes:
    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, the transmitter coil arrangement including a plurality of transmitter coils positioned within the interior cavity in an overlapping arrangement such that different coils in the plurality of coils are on different planes and each of the plurality of transmitter coils has a central axis positioned a lateral distance away from the central axes of all other transmitter coils of the plurality of transmitter coils; and
    a faraday cage enclosing the transmitter coil arrangement, the faraday cage comprising:
    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.

    STRUCTURAL FRAMEWORK FOR WIRELESS CHARGING MATS
    3.
    发明公开
    STRUCTURAL FRAMEWORK FOR WIRELESS CHARGING MATS 审中-公开

    公开(公告)号：EP3454453A1

    公开(公告)日：2019-03-13

    申请号：EP18178191.5

    申请日：2017-09-11

    申请人： Apple Inc.

    发明人： GRAHAM, Christopher S. ,  KARANIKOS, Demetrios B. ,  JOL, Eric S. ,  LARSSON, Karl Ruben F. ,  THOMPSON, Paul J. ,  KASAR, Darshan R. ,  HAUG, Grant S. ,  KOWALSKI, Stefan A.

    IPC分类号： H02J50/40 ,  H02J50/70 ,  H02J50/10 ,  H02J7/00

    摘要： Embodiments describe a wireless charging device that includes: a housing having a charging surface and first and second walls that define an interior cavity;a transmitter coil arrangement disposed within the interior cavity, the transmitter coil arrangement including a plurality of transmitter coils positioned within the interior cavity in an overlapping arrangement such that different transmitter coils in the plurality of transmitter coils are on different planes and each of the plurality of transmitter coils has a central axis positioned a lateral distance away from the central axes of all other transmitter coils of the plurality of transmitter coils;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 and configured to operate the plurality of transmitter coils during wireless power transfer, wherein the plurality of packaged electrical components is located below the transmitter coil arrangement; and a frame comprising a plurality of openings positioned corresponding to the plurality of packaged electrical components, each opening providing space within which a respective packaged electrical device is disposed.

    INTERCONNECTIONS FOR MULTI-LAYER TRANSMITTER COIL ARRANGEMENTS IN WIRELESS CHARGING MATS
    5.
    发明公开
    INTERCONNECTIONS FOR MULTI-LAYER TRANSMITTER COIL ARRANGEMENTS IN WIRELESS CHARGING MATS 审中-公开

    公开(公告)号：EP3451494A1

    公开(公告)日：2019-03-06

    申请号：EP18178217.8

    申请日：2017-09-11

    申请人： Apple Inc.

    发明人： GRAHAM, Christopher S. ,  KARANIKOS, Demetrios B. ,  JOL, Eric S. ,  LARSSON, Karl Ruben F. ,  THOMPSON, Paul J. ,  KASAR, Darshan R. ,  HAUG, Grant S. ,  KOWALSKI, Stefan A.

    IPC分类号： H02J50/40 ,  H02J7/00 ,  H02J50/70 ,  H02J50/10

    摘要： Embodiments describe a wireless charging device that includes: a housing having a charging surface, the housing including first and second walls defining an interior cavity;
    a transmitter coil arrangement disposed within the interior cavity, the transmitter coil arrangement including a plurality of transmitter coils arranged in at least a top layer, a bottom layer, and a middle layer between the top and bottom layers, and positioned within the interior cavity in an overlapping arrangement such that different coils in the plurality of coils are on different planes and each of the plurality of transmitter coils has a central axis positioned a lateral distance away from the central axes of all other transmitter coils of the plurality of transmitter coils;
    a plurality of cowlings for confining the plurality of planar transmitter coils in their respective positions;
    an interconnection structure positioned within the interior cavity between the transmitter coil arrangement and the second wall, the interconnection structure comprising a plurality of packaged electrical components mounted onto the interconnection structure; and
    a plurality of standoffs coupled to the interconnection structure and configured to electrically couple the transmitter coil arrangement to the plurality of packaged electrical components, wherein the plurality of standoffs includes:
    a first standoff configured to couple the interconnection structure to a transmitter coil in the top layer;
    a second standoff configured to couple the interconnection structure to a transmitter coil in the middle layer; and
    a third standoff configured to couple the interconnection structure to a transmitter coil in the bottom layer.