公开(公告)号：US20180233951A1

公开(公告)日：2018-08-16

申请号：US15701237

申请日：2017-09-11

Applicant: Apple Inc.

Inventor： Karl Ruben F. Larsson ,  Eric S. Jol ,  Christopher S. Graham ,  Aaron A. Oro

IPC: H02J50/12 ,  H01F27/24 ,  H01F27/28 ,  H02J7/02 ,  H04B5/00

CPC classification number: H02J50/12 ,  H01F27/22 ,  H01F27/24 ,  H01F27/28 ,  H01F27/362 ,  H01F27/365 ,  H01F38/14 ,  H02J7/025 ,  H04B5/0037

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.

公开(公告)号：US10043612B2

公开(公告)日：2018-08-07

申请号：US15269925

申请日：2016-09-19

Applicant: Apple Inc.

Inventor： Christopher S. Graham ,  Eric S. Jol ,  Makiko K. Brzezinski

IPC: H02J7/00 ,  H01F27/28 ,  H01F1/147 ,  H02J50/70 ,  H01F27/02 ,  H02J7/02 ,  H02J50/10 ,  H01F27/36 ,  H01F38/14

Abstract: Methods of and systems for directing flux from a transmit coil to a receive coil within an inductive power transfer system are disclosed. For example, a transmit coil can be shielded with a contoured shield made from a ferromagnetic material. The contoured shield contours to several surfaces of the transmit coil so as to define a single plane through which magnetic flux is directed to a receive coil.

公开(公告)号：US10027185B2

公开(公告)日：2018-07-17

申请号：US14502042

申请日：2014-09-30

Applicant: Apple Inc.

Inventor： Todd K. Moyer ,  Albert Lin ,  Wesley W. Zuber ,  Yehonatan Perez ,  Jeffrey M. Alves ,  Makiko K. Brzezinski ,  Eric S. Jol ,  Paul J. Thompson ,  Priyank D. Patel ,  Christian M. Sauer ,  Christopher S. Graham ,  Jim C. Hwang ,  Micah Lewis-Kraus

IPC: H02J50/70 ,  H04B15/02 ,  H02J7/02 ,  H02J50/90 ,  H02J5/00 ,  H02J50/12

Abstract: A transmitter device for an inductive energy transfer system can include a DC-to-AC converter operably connected to a transmitter coil, a first capacitor connected between the transmitter coil and one output terminal of the DC-to-AC converter, and a second capacitor connected between the transmitter coil and another output terminal of the DC-to-AC converter. One or more capacitive shields can be positioned between the transmitter coil and an interface surface of the transmitter device. A receiver device can include a touch sensing device, an AC-to-DC converter operably connected to a receiver coil, a first capacitor connected between the receiver coil and one output terminal of the AC-to-DC converter, and a second capacitor connected between the receiver coil and another output terminal of the AC-to-DC converter. One or more capacitive shields can be positioned between the receiver coil and an interface surface of the receiver device.

公开(公告)号：US20180103557A1

公开(公告)日：2018-04-12

申请号：US15581433

申请日：2017-04-28

Applicant: Apple Inc.

Inventor： James A. Wright ,  Guangtao Zhang ,  Raymund W.M. Kwok ,  Karl Ruben F. Larsson ,  Christopher S. Graham ,  Matthew D. Hill ,  Abhijeet Misra

IPC: H05K5/04 ,  H05K7/14 ,  H02J50/10 ,  H05K5/03 ,  H01Q1/38 ,  H01Q7/00

CPC classification number: H05K5/04 ,  G06F1/182 ,  H01Q1/38 ,  H01Q7/00 ,  H02J50/10 ,  H04M1/0202 ,  H05K5/03 ,  H05K7/1427

Abstract: An enclosure is formed by coupling an outer cover to a back enclosure piece. The enclosure defines an interior volume for receiving components of an electronic device. The back enclosure piece is formed from a metal frame component and a non-metal outer cover. A metal layer overlaps the metal frame component and the outer cover within the interior volume. The metal layer has a thickness that provides support and shatter resistance to the non-metal outer cover. The metal layer can form an inductor of a wireless power transfer circuit.

公开(公告)号：US20180090974A1

公开(公告)日：2018-03-29

申请号：US15701224

申请日：2017-09-11

Applicant: Apple Inc.

Inventor： Shimon Elkayam ,  Brandon R. Garbus ,  Christopher S. Graham ,  Karl Ruben F. Larsson

IPC: H02J7/02 ,  H02J50/10 ,  H02J50/70 ,  H02J50/40

CPC classification number: H02J7/025 ,  H01F38/14 ,  H02J50/10 ,  H02J50/40 ,  H02J50/70

Abstract: 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.

公开(公告)号：US20180090954A1

公开(公告)日：2018-03-29

申请号：US15699965

申请日：2017-09-08

Applicant: Apple Inc.

Inventor： Christopher S. Graham ,  Demetrios B. Karanikos ,  Darshan R. Kasar ,  Paul J. Thompson ,  Eric S. Jol ,  Grant S. Haug ,  Karl Ruben F. Larsson ,  Stefan A. Kowalski

IPC: H02J7/00 ,  H02J7/02 ,  H02J50/10 ,  H01F27/28

CPC classification number: 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

Abstract: Embodiments describe a wireless charging device including a housing having a charging surface and first and second walls defining an interior cavity, and a transmitter coil arrangement disposed within the interior cavity and configured to generate a time-varying magnetic flux and an electric field during wireless power transfer, where 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. The wireless charging mat also includes an electromagnetic shield positioned between the transmitter coil arrangement and the first wall, an interconnection structure positioned within the interior cavity between the transmitter coil arrangement and the second wall, and a ferromagnetic shield positioned within the interior cavity between the transmitter coil arrangement and the interconnection structure, the ferromagnetic shield is configured to redirect the magnetic flux away from the interconnection structure.

公开(公告)号：US09794673B2

公开(公告)日：2017-10-17

申请号：US15273693

申请日：2016-09-22

Applicant: Apple Inc.

Inventor： Arun D. Chawan ,  Lee M. Panecki ,  Rico L. Zörkendörfer ,  Kurt Stiehl ,  Christopher S. Graham ,  Christopher J. Walton

IPC: H04M1/00 ,  H04R1/10 ,  H04R1/28 ,  H04R1/34 ,  B65D25/02 ,  B65D43/16 ,  H04R1/02 ,  H04B1/3888 ,  H04B5/00 ,  A45C11/24 ,  A45C13/10 ,  H04R9/02 ,  H04R9/06 ,  H02J7/00 ,  H02J7/02 ,  H01R13/52 ,  A45C11/00 ,  H04R5/033 ,  A45C13/02 ,  H04B1/3827 ,  H04M1/60 ,  F16B1/00

Abstract: A case for a portable listening device includes a rechargeable battery and a first and a second charging system. The first charging system is configured to charge the portable listening device and the second charging system is configured to wirelessly charge a portable electronic device positioned outside of the case adjacent to an exterior charging surface.

公开(公告)号：US20170110911A1

公开(公告)日：2017-04-20

申请号：US15393435

申请日：2016-12-29

Applicant: Apple Inc.

Inventor： Chad A. Bossetti ,  Jeffrey M. Alves ,  Albert J. Golko ,  Jeffrey Terlizzi ,  Christopher S. Graham ,  Steven G. Herbst

IPC: H02J50/10 ,  H02J50/80 ,  H02J7/02 ,  H02J50/90

Abstract: Methods and systems for improved efficiency when an inductive power transmitter associated with an inductive power transfer system experiences a low-load or no-load condition. More particularly, methods and systems for detecting when an inductive power receiver is absent or poorly connected to an inductive power transmitter. The inductive power transmitter includes, in one example, a current peak monitor coupled to an inductive power transmit coil. The current peak monitor waits for a current peak resulting from spatial displacement of a magnetic field source within the inductive power receiver, indicating to the inductive power transmitter that the inductive power receiver is moving, or has moved, toward the inductive power transmitter. Other examples include one or more Hall effect sensors within the inductive power transmitter to monitor for the magnetic field source of the inductive power receiver.

公开(公告)号：US09449754B2

公开(公告)日：2016-09-20

申请号：US14291024

申请日：2014-05-30

Applicant: Apple Inc.

Inventor： Christopher S. Graham ,  Eric S. Jol ,  Makiko K. Brzezinski ,  Paul J. Thompson ,  Stephen E. Yao

IPC: H01F27/28 ,  H01F27/29 ,  H01F27/02 ,  H01F41/04 ,  H01F38/14 ,  H01F41/10

CPC classification number: H01F27/2823 ,  B60L11/182 ,  H01F27/2828 ,  H01F38/14 ,  H01F41/04 ,  H01F41/064 ,  H01F41/086 ,  H01F41/10 ,  H02J7/025 ,  H02J50/12 ,  H02J50/80 ,  Y02T10/7005 ,  Y02T10/7072 ,  Y02T10/7094 ,  Y02T90/122 ,  Y02T90/14 ,  Y10T29/49021

Abstract: An inductor coil for an inductive energy transfer system includes multiple layers of a single wire having windings that are interlaced within at least two of the multiple layers such that both an input end and an output end of the wire enter and exit the coil on a same side of the coil. The input end and the output end of the wire may abut one another at the location where the input and output wires enter and exit the inductor coil. The wire can include one or more bundles of strands and the strands in each bundle are twisted around an axis extending along a length of the wire, and when there are at least two bundles, the bundles may be twisted around the axis. At least one edge of the inductor coil can be formed into a variety of shapes, such as in a curved shape.

Abstract translation: 用于感应能量转移系统的电感线圈包括具有绕组的多个层，所述绕组在多个层中的至少两个层中交织，使得线的输入端和输出端都在同一个线上进入和退出线圈 线圈侧。 导线的输入端和输出端可以在输入和输出线进出电感线圈的位置彼此邻接。 线可以包括一束或多束股线，并且每个束中的股线围绕沿着该线的长度延伸的轴线扭转，并且当存在至少两个束时，该捆可围绕轴线扭转。 电感线圈的至少一个边缘可以形成为各种形状，例如弯曲形状。

公开(公告)号：US20250104895A1

公开(公告)日：2025-03-27

申请号：US18896214

申请日：2024-09-25

Applicant: Apple Inc.

Inventor： John C. DiFonzo ,  Eric X. Zhou ,  Christopher S. Graham ,  Karl Ruben Fredrik Larsson

IPC: H01F7/02 ,  H01F1/053

Abstract: Examples provide magnets for electronic devices. The magnets can be formed as unitary structures using metal-injection molding. The magnets can be referred to as neodymium magnets. That is, they can be formed of neodymium, iron, and boron. The magnet can comprise a plurality of easy axes, where the plurality of easy axes are not parallel.