公开(公告)号：US20210099028A1

公开(公告)日：2021-04-01

申请号：US17028275

申请日：2020-09-22

Applicant: Apple Inc.

Inventor： Paul J. Thompson ,  Karl Ruben F. Larsson ,  Aaron A. Oro ,  Timothy J. Rasmussen ,  Christopher S. Graham ,  Eric S. Jol ,  Demetrios B. Karanikos ,  Miranda L. Daly

IPC: H02J50/90 ,  H02J50/80 ,  H02J50/10 ,  H02J7/00

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：US10951053B2

公开(公告)日：2021-03-16

申请号：US16126992

申请日：2018-09-10

Applicant: Apple Inc.

Inventor： Christopher S. Graham ,  Karl Ruben F. Larsson

IPC: H01M10/46 ,  H02J7/02 ,  H01F27/34 ,  H02J50/10

Abstract: An inductive coil capable of providing power to the battery is described. The inductive coil is formed of a length of a wire having a conductive core capable of carrying an electrical current. The conductive core is surrounded by an insulating layer that electrically isolates the conductive core. Portions of the length of wire include a magnetically permeable material that is plated on an exposed surface of the conductive core.

公开(公告)号：US10910862B2

公开(公告)日：2021-02-02

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: H02J7/00 ,  H02J7/02 ,  H02J50/40 ,  H02J50/70 ,  H02J50/10 ,  H01F38/14

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：US10897148B2

公开(公告)日：2021-01-19

申请号：US15699978

申请日：2017-09-08

Applicant: Apple Inc.

Inventor： Christopher S. Graham ,  Demetrios B. Karanikos ,  Eric S. Jol ,  Karl Ruben F. Larsson ,  Stefan A. Kowalski

IPC: H02J7/00 ,  H02J50/10 ,  H01F27/28 ,  H05K9/00 ,  H02J50/40 ,  H02J50/60 ,  H02J50/70 ,  H04B5/00 ,  H01F27/32

Abstract: Embodiments describe a wireless charging device including: a housing having an outer perimeter and a charging surface within the outer perimeter, the housing including a first wall and a second wall that define an interior cavity; and a transmitter coil arrangement disposed within the interior cavity and below the planar charging surface. The transmitter coil arrangement includes: a plurality of transmitter coils arranged in different layers, each transmitter coil having a first termination end, a second termination end, and a coil of wire that winds from an inner diameter to an outer diameter between the first and second termination ends; where the first termination end of each transmitter coil is disposed within the inner diameter of its respective coil of wire and the second termination end of each transmitter coil is disposed outside the outer diameter of its respective coil of wire.

公开(公告)号：US20200221843A1

公开(公告)日：2020-07-16

申请号：US16827517

申请日：2020-03-23

Applicant: Apple Inc.

Inventor： Makiko K. Brzezinski ,  Christopher J. Walton ,  Christopher S. Graham ,  Daniel C. Wagman ,  Eric S. Jol

IPC: A45C13/02 ,  A45C11/24 ,  H04R1/10 ,  H02J50/40 ,  H02J50/10 ,  H02J7/00

Abstract: A case a portable listening device. The case includes a housing having an interior space to receive the portable listening device; a lid attached to the housing; a rechargeable battery and first and second wireless power receiving elements configured to receive electric charge from a wireless power transmitter during a charging event. The case further includes switching circuitry that is configured to disable one of the first or second wireless power receiving elements during a charging event when the disabled element is receiving power less efficiently than the other element.

公开(公告)号：US10693308B2

公开(公告)日：2020-06-23

申请号：US15700001

申请日：2017-09-08

Applicant: Apple Inc.

Inventor： Eric S. Jol ,  Christopher S. Graham ,  Darshan R. Kasar ,  Demetrios B. Karanikos

IPC: H02J50/60 ,  H02J7/02 ,  H02J50/10 ,  H01F38/14 ,  H01F27/36 ,  H01F27/40 ,  H01F27/28 ,  G01K7/22 ,  G01K13/00 ,  H02J7/00 ,  H05K9/00

Abstract: Embodiments describe a wireless charging device including: 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; 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 including 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.

公开(公告)号：US20200091755A1

公开(公告)日：2020-03-19

申请号：US16564712

申请日：2019-09-09

Applicant: Apple Inc.

Inventor： Karl Ruben Fredrik Larsson ,  Paul J. Thompson ,  Christopher S. Graham

IPC: H02J7/02 ,  H02J7/00 ,  H01F38/14 ,  H01F27/28

Abstract: An inductive charging dock is disclosed that includes a charging dock housing defining an interior volume. The inductive charging dock housing is configured to support a portable electronic device during a wireless charging operation and includes a radio frequency (RF) transparent window. An induction coil is disposed within the interior volume and configured to generate a magnetic flux that exits the charging dock housing through the RF transparent window. A cooling fan is disposed within the interior volume and is configured to establish a flow of cooling air along a path that extends through an air gap between the induction coil and the RF transparent window

公开(公告)号：US10411509B2

公开(公告)日：2019-09-10

申请号：US15436264

申请日：2017-02-17

Applicant: Apple Inc.

Inventor： Christopher S. Graham

IPC: H01F38/14 ,  H02J50/10 ,  H02J50/70 ,  H02J50/40 ,  H02J7/02 ,  H02J50/90 ,  H02J7/00 ,  H02J17/00 ,  H02J50/00

Abstract: A system for inductive power transmission includes at least one interface surface and a plurality of triangular coil elements positioned underneath the interface surface such that at least one edge of the respective triangular coil element is adjacent to an edge of at least one other of the triangular coil elements. Each of the triangular coil elements may be operable to inductively transmit power to at least one coil of at least one electronic device and/or inductively receive power from the coil of the electronic device. Each triangular coil element may be operable to detect the proximity of one or more inductive coils of one or more electronic devices and inductively transmit power upon such detection at different frequencies, power levels, and/or other inductive power transmission characteristics.

公开(公告)号：US10390594B2

公开(公告)日：2019-08-27

申请号：US16228573

申请日：2018-12-20

Applicant: Apple Inc.

Inventor： Makiko K. Brzezinski ,  Christopher J. Walton ,  Christopher S. Graham ,  Daniel C. Wagman ,  Eric S. Jol

IPC: H02J7/04 ,  H04R1/10 ,  A45C13/02 ,  A45C11/24 ,  H02J50/40 ,  H02J50/10 ,  H02J7/00 ,  H02J7/02

Abstract: A case a portable listening device. The case includes a housing having an interior space to receive the portable listening device; a lid attached to the housing; a rechargeable battery and first and second wireless power receiving elements configured to receive electric charge from a wireless power transmitter during a charging event. The case further includes switching circuitry that is configured to disable one of the first or second wireless power receiving elements during a charging event when the disabled element is receiving power less efficiently than the other element.

公开(公告)号：US10298075B2

公开(公告)日：2019-05-21

申请号：US15442209

申请日：2017-02-24

Applicant: Apple Inc.

Inventor： Benjamin J. Kallman ,  Michael B. Wittenberg ,  Christopher S. Graham

IPC: H02J50/10 ,  H02J50/90 ,  H02J7/02 ,  H01F38/14 ,  H02J7/00 ,  H01F27/02 ,  H01F27/26 ,  H01F27/40

Abstract: Connector assemblies may be space efficient, have a high corrosion resistance, are difficult to damage, reduce or prevent moisture leakage into an electronic device housing the connector assembly, are readily assembled, and are reliable. One example may provide an inductive charging port for transferring electrical energy from a first electric device to a second electronic device. As compared to conventional connector inserts and connector receptacles, these inductive charging ports may have a smaller form factor and consume a reduced volume in an electronic device. Corrosion resistance may be provided by including a protective layer or cover portion over what would otherwise be exposed surfaces of a transformer core. O-rings, gaskets, or other structures may be included to reduce moisture leakage into a device. The inductive charging port may include a low number of parts for a simplified assembly, and thermal management of various types may be used to improve reliability.