Wireless Power Transfer System With Extended Wireless Charging Range

    公开(公告)号:US20220407358A1

    公开(公告)日:2022-12-22

    申请号:US17686745

    申请日:2022-03-04

    申请人: NuCurrent, Inc.

    摘要: The present application relates to an apparatus which comprises a wireless power transfer (WPT) system. This system comprises features which allow it to transfer more power wirelessly at extended distances than other systems operating in the same frequency range. The system possesses heat dissipation features; these features allow it to operate effectively in elevated-temperature environments, and to transfer power at higher levels and/or greater distances than a typical power-transfer system. The system also might include design features to withstand mechanical shocks, stresses, and impacts for use in a rugged environment. The system can also comprise adaptations to reduce electromagnetic interference (EMI), and can comprise specially shaped components with magnetic/ferrimagnetic properties that enhance performance. Other potential features include power conditioning by combining, within one circuit or one board, multiple elements that protect against excessive current, over-voltage, and/or reverse voltage. Other features might include integration of an antenna and a battery within one module.

    SURFACE MOUNTABLE WIRELESS POWER TRANSMITTER FOR TRANSMISSION AT EXTENDED RANGE

    公开(公告)号:US20230110280A1

    公开(公告)日:2023-04-13

    申请号:US17972155

    申请日:2022-10-24

    申请人: NuCurrent, Inc.

    摘要: A surface mountable housing for a power transmitter for wireless power transfer includes a connector system configured for use to mount, at least, a transmitter antenna to an underside of a structural surface, such that the transmitter antenna is configured to couple with a receiver antenna of a power receiver when the receiver antenna is proximate to a top side of the structural surface. The surface mountable housing further includes a heat sink, the heat sink configured to rest, at least in part, below the transmitter antenna, when the power transmitter is connected to the structural surface, and configured to direct heat generated by the power transmitter away from the structural surface, and an antenna housing, the antenna housing substantially surrounding a side wall of the transmitter antenna, the antenna housing connected to the heat sink and positioned between the heat sink and the structural surface.

    Surface mountable wireless power transmitter for transmission at extended range

    公开(公告)号:US11482890B2

    公开(公告)日:2022-10-25

    申请号:US16863691

    申请日:2020-04-30

    申请人: NuCurrent, Inc.

    摘要: A surface mountable housing for a power transmitter for wireless power transfer includes a connector system configured for use to mount, at least, a transmitter antenna to an underside of a structural surface, such that the transmitter antenna is configured to couple with a receiver antenna of a power receiver when the receiver antenna is proximate to a top side of the structural surface. The surface mountable housing further includes a heat sink, the heat sink configured to rest, at least in part, below the transmitter antenna, when the power transmitter is connected to the structural surface, and configured to direct heat generated by the power transmitter away from the structural surface, and an antenna housing, the antenna housing substantially surrounding a side wall of the transmitter antenna, the antenna housing connected to the heat sink and positioned between the heat sink and the structural surface.

    Systems and methods for utilizing laser cutting and chemical etching in manufacturing wireless power antennas

    公开(公告)号:US11482884B2

    公开(公告)日:2022-10-25

    申请号:US17135029

    申请日:2020-12-28

    申请人: NuCurrent, Inc.

    发明人: Oleg Los

    摘要: A PCB for wireless power transfer includes an antenna and the antenna includes a coil. A method for manufacturing the PCB includes providing a prefabricated PCB, the prefabricated PCB including a PCB design and a first area and providing a first sheet of a conductive metal for the first area. The method includes applying an etch resistant coating on a coil area within the first area and laser cutting the first sheet within the coil area, based on a laser cutting path for a first plurality of turns for a first layer of the coil, the first geometry configured wireless power transfer. The method further includes substantially exposing the first sheet to an etching solution, the etching solution substantially removing first portions of the conductive metal from the substrate to define, at least, first turn gaps between at least two of the first plurality of turns.

    Multi-channel cooling for extended distance wireless power transmitter

    公开(公告)号:US11277935B2

    公开(公告)日:2022-03-15

    申请号:US16863710

    申请日:2020-04-30

    申请人: NuCurrent, Inc.

    摘要: A power transmitter includes a transmitter antenna includes at least one coil configured to transmit the power signal to the power receiver, the at least one coil and a shielding comprising a ferrite core and defining a cavity, the cavity configured such that the ferrite core substantially surrounds all but the top face of the at least one coil. The power transmitter includes a housing configured for housing, at least, the transmitter antenna. The housing defines an airflow opening configured to provide an airflow to a first airflow channel and to a second airflow channel. The first and second airflow channels configured to provide the airflow to one or more of a top face of a mobile device thereon and a bottom face of the mobile device.