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公开(公告)号：US20180358815A1
公开(公告)日：2018-12-13
申请号：US16107993
申请日：2018-08-21
Applicant: Apple Inc.
Inventor： Hao Li , Saining Ren , Aijun Qin
CPC classification number: H02J5/005 , H01F38/14 , H01F2003/005 , H01M2/1055 , H01M10/46 , H02J7/02 , H02J7/025 , H02J50/00 , H02J50/70
Abstract: A receiver coil assembly for a wirelessly rechargeable battery including first and second transverse coils and a third coil encompassing the first and second coils. The receiver coil may be employed in a power receiver of a wirelessly rechargeable battery. Also disclosed is a wirelessly rechargeable battery having a power receiver demountable from an electrochemical cell.
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公开(公告)号：US20240421639A1
公开(公告)日：2024-12-19
申请号：US18821848
申请日：2024-08-30
Applicant: Apple Inc.
Inventor： Saining Ren
Abstract: Implementations described herein provide systems and methods for wireless charging. In one implementation, a portable electronic device comprises a housing, a planar inductor coil, and a ferromagnetic shield. The planar inductor coil is disposed in the housing and comprises a conductive wire wound a plurality of turns about a center point and in increasing radii. The ferromagnetic shield is disposed in the housing and overlaps the planar inductor coil. The ferromagnetic shield comprises a first layer comprising a first plurality of iron-based nanocrystalline ribbons arranged in adjacent rows along a first direction and a second layer comprising a second plurality of iron-based nanocrystalline ribbons overlapping the first layer. The second plurality of iron-based nanocrystalline ribbons is arranged in adjacent rows along a second direction different from the first direction.
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公开(公告)号：US12081041B2
公开(公告)日：2024-09-03
申请号：US17708411
申请日：2022-03-30
Applicant: Apple Inc.
Inventor： Saining Ren
Abstract: Implementations described herein provide systems and methods for wireless charging. In one implementation, a portable electronic device comprises a housing, a planar inductor coil, and a ferromagnetic shield. The planar inductor coil is disposed in the housing and comprises a conductive wire wound a plurality of turns about a center point and in increasing radii. The ferromagnetic shield is disposed in the housing and overlaps the planar inductor coil. The ferromagnetic shield comprises a first layer comprising a first plurality of iron-based nanocrystalline ribbons arranged in adjacent rows along a first direction and a second layer comprising a second plurality of iron-based nanocrystalline ribbons overlapping the first layer. The second plurality of iron-based nanocrystalline ribbons is arranged in adjacent rows along a second direction different from the first direction.
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公开(公告)号：US11784511B2
公开(公告)日：2023-10-10
申请号：US17217451
申请日：2021-03-30
Applicant: Apple Inc.
Inventor： Nan Liu , Madhusudanan Keezhveedi Sampath , Robert Scritzky , Gianpaolo Lisi , Saining Ren , Kunal Bhargava , Zaki Moussaoui , Zelin Xu
CPC classification number: H02J50/10 , G06F1/1626 , G06F1/182 , G06F3/038 , G06F3/03545 , H02J7/0042 , H02J7/02 , H02J50/005
Abstract: A personal electronic device (e.g., a tablet computer) may be configured to wirelessly charge an accessory (e.g., a stylus) through a display face of the device. At least a portion of the display face may be transparent to facilitate display viewing. A wireless charging assembly disposed within the enclosure may include a core having one or more windings disposed thereon, which may be configured to generate a magnetic flux above the display face to couple to the accessory. The core may be a pot core, a modified pot core, or may have another shape, such as a PQ core. The one or more windings may be disposed on one or more posts of a pot core, or additionally or alternatively, may be disposed on another portion of the core. A metallic shield may be disposed about the wireless charging assembly, thereby surrounding multiple sides of the wireless charging assembly.
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公开(公告)号：US11469040B2
公开(公告)日：2022-10-11
申请号：US16893152
申请日：2020-06-04
Applicant: Apple Inc.
Inventor： Saining Ren , Christopher S. Graham , Makiko K. Brzezinski , Rohan Dayal , Paul J. Thompson
Abstract: This application relates to a wireless charger with increased efficiency during operation. The wireless charging assembly includes a wireless charger and an electronic device. A transmitter coil in the wireless charger can induct magnetic flux to a receiver coil in the electronic device via a magnetic flux pathway.
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Patent Agency Ranking
公开(公告)号：US11362548B1
公开(公告)日：2022-06-14
申请号：US16942161
申请日：2020-07-29
Applicant: Apple Inc.
Inventor： Saining Ren , Ho Fai Leung , Liang Chen
Abstract: A wireless power system has a wireless power transmitting device such as a charging puck and a wireless power receiving device such as a wristwatch. The charging puck may have a three-wire cable that is coupled between a connector and a puck housing. The wireless power transmitting device may have a set of four coils or other number of wireless power transmitting coils in the puck housing. A switch may be coupled in series with each of the four coils. Control circuitry in the wireless power transmitting device may activate a subset of the switches to switch a subset of the coils into use in transmitting the wireless power to the wireless power receiving device. The control circuitry may have a main portion in the connector that uses a tone-based encoding scheme or other encoding scheme to transmit switch configuration commands to a secondary portion in the puck housing.
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公开(公告)号：US20210408826A1
公开(公告)日：2021-12-30
申请号：US17217451
申请日：2021-03-30
Applicant: Apple Inc.
Inventor： Nan Liu , Madhusudanan Keezhveedi Sampath , Robert Scritzky , Gianpaolo Lisi , Saining Ren , Kunal Bhargava , Zaki Moussaoui , Zelin Xu
Abstract: A personal electronic device (e.g., a tablet computer) may be configured to wirelessly charge an accessory (e.g., a stylus) through a display face of the device. At least a portion of the display face may be transparent to facilitate display viewing. A wireless charging assembly disposed within the enclosure may include a core having one or more windings disposed thereon, which may be configured to generate a magnetic flux above the display face to couple to the accessory. The core may be a pot core, a modified pot core, or may have another shape, such as a PQ core. The one or more windings may be disposed on one or more posts of a pot core, or additionally or alternatively, may be disposed on another portion of the core. A metallic shield may be disposed about the wireless charging assembly, thereby surrounding multiple sides of the wireless charging assembly.
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公开(公告)号：US20210383966A1
公开(公告)日：2021-12-09
申请号：US16893152
申请日：2020-06-04
Applicant: Apple Inc.
Inventor： Saining Ren , Christopher S. Graham , Makiko K. Brzezinski , Rohan Dayal , Paul J. Thompson
Abstract: This application relates to a wireless charger with increased efficiency during operation. The wireless charging assembly includes a wireless charger and an electronic device. A transmitter coil in the wireless charger can induct magnetic flux to a receiver coil in the electronic device via a magnetic flux pathway.
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公开(公告)号：US11171518B2
公开(公告)日：2021-11-09
申请号：US17175942
申请日：2021-02-15
Applicant: Apple Inc.
Inventor： Saining Ren , Ho Fai Leung
Abstract: A wireless power system has a wireless power transmitting device and a wireless power receiving device. The wireless power transmitting device may be a wireless charging mat or other device with coils for transmitting wireless power signals. The wireless power receiving device may be a cellular telephone or other device with coils for receiving the transmitted wireless power signals. The wireless power receiving device has adjustable rectifier circuitry coupled to a pair of coils. The pair of coils is coupled in series at a node. A transistor is coupled between ground and the node and is controlled by control circuitry. The state of the transistor can be changed to place the adjustable rectifier circuitry in either a first mode of operation in which the adjustable rectifier circuitry forms a full-bridge rectifier or a second mode of operation in which the adjustable rectifier circuitry forms a pair of parallel half-bridge rectifiers.
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公开(公告)号：US20210050750A1
公开(公告)日：2021-02-18
申请号：US17085846
申请日：2020-10-30
Applicant: Apple Inc.
Inventor： Kunal Bhargava , Fady Mishriki , Saining Ren , Daniel Robertson , Nigel James Gray , Rex Huang
Abstract: In an inductively coupled power transmitter a force detector that detects the presence of a potential device by monitoring forces applied to a surface of the power transmitter and activates the inductively coupled power transmitter upon detection of a potential device. An inductively coupled power transmitter having a proximity detector that detects the presence and location of a potential device by monitoring the proximity of devices to a surface of the power transmitter and activates the inductively coupled power transmitter upon detection of a potential device. The transmitter preferably has one or more detection coils each having an area much greater than that of the transmitter coils for detecting the presence of a potential device. An inductively coupled power transmitter including a plurality of transmitter coils proximate a charging surface and a controller selecting and driving a combination of transmitter coils providing the coupling between the power transmitter and a power receiver meeting a selection criteria.
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