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公开(公告)号：EP3411889A1
公开(公告)日：2018-12-12
申请号：EP17777115.1
申请日：2017-09-12
申请人： Apple Inc.
CPC分类号： H01F38/14 , H01F27/362 , H01F27/365 , H02J7/025 , H02J50/10 , H02J50/40 , H02J50/70
摘要： Embodiments describe electromagnetic shielding for wireless charging systems. A wireless charging system includes a transmitter coil configured to generate a magnetic flux, a receiver coil positioned coaxial with the transmitter coil to receive the generated magnetic flux, where electrical interaction between the transmitter coil and the receiver coil generates electric fields, a transmitter shield positioned between the transmitter coil and the receiver coil to intercept some of the electric fields directed away from the transmitter coil and allow the magnetic flux to pass through the transmitter shield, and a receiver shield positioned between the transmitter shield and the receiver coil to intercept some of the electric fields directed away from the receiver coil and allow the magnetic flux to pass through the receiver shield.
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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.
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.
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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.
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.-
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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.
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.
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公开(公告)号：EP3413436A1
公开(公告)日：2018-12-12
申请号：EP18178161.8
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.
CPC分类号： H02J7/0042 , H01F27/288 , H01F27/325 , H02J5/005 , H02J7/025 , H02J50/10 , H02J50/40 , H02J50/60 , H02J50/70 , H04B5/0037 , H04B5/0075 , H04B5/0087 , H05K9/0007
摘要： Embodiments describe a wireless charging device that includes: a housing having an outer perimeter and one or more walls defining an interior cavity; a charging surface within the outer perimeter of the housing; a transmitter coil arrangement disposed within the interior cavity below the planar charging surface, the transmitter coil arrangement comprising a plurality of transmitter coils arranged in different layers, each transmitter coil having a pair of termination ends; wherein the plurality of transmitter coils comprises a plurality of inner transmitter coils and a plurality of outer transmitter coils positioned around the inner transmitter coils; and wherein the pair of termination ends of the plurality of outer transmitter coils are arranged differently than the pair of termination ends of the plurality of inner transmitter coils.
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7.发明公开
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.
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.-
公开(公告)号：EP3369155A1
公开(公告)日：2018-09-05
申请号：EP17772190.9
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.
CPC分类号： H02J7/0042 , H01F27/288 , H01F27/325 , H02J5/005 , H02J7/025 , H02J50/10 , H02J50/40 , H02J50/60 , H02J50/70 , H04B5/0037 , H04B5/0075 , H04B5/0087 , H05K9/0007
摘要： Embodiments describe a transmitter coil arrangement for a wireless charging device including: a first layer of transmitter coils, each transmitter coil in the first layer of transmitter coils is arranged in a first radial direction; a second layer of transmitter coils, each transmitter coil in the second layer of transmitter coils is arranged in a second radial direction that is offset from the first radial direction by an angular offset; and a third layer of transmitter coils, each transmitter coil in the top layer of transmitter coils is arranged in a third rotational direction that is offset from both the first and second radial directions by the angular offset, where the second layer of transmitter coils is disposed between the first and third layers of transmitter coils
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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
申请人： Apple Inc.
摘要： 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.
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