ACTIVE COOLING IN A MULTI-DEVICE WIRELESS CHARGER

    公开(公告)号:US20220377947A1

    公开(公告)日:2022-11-24

    申请号:US17744613

    申请日:2022-05-13

    申请人: AIRA, INC.

    IPC分类号: H05K7/20 H02J50/40 H02J50/00

    摘要: Systems, methods and apparatus for wireless charging are disclosed. A wireless charging device has a plurality of planar power transmitting coils, a driver circuit and at least one substrate having channels formed therein. The channels can receive a flow of air at a port of entry and conduct the flow of air through the substrate to a port of exit. The planar power transmitting coils may be supported by at least one substrate. Each planar power transmitting coil may be formed as a spiral winding surrounding a power transfer area. The driver circuit may be configured to provide a charging current to one or more of the planar power transmitting coils when a chargeable device is placed on or near the wireless charging device. The one or more channels may be configured to conduct the flow of air past or through the planar power transmitting coils and the driver circuit.

    FREE POSITIONING MULTI-DEVICE WIRELESS CHARGER

    公开(公告)号:US20220311278A1

    公开(公告)日:2022-09-29

    申请号:US17703978

    申请日:2022-03-24

    申请人: AIRA, INC.

    摘要: Systems, methods and apparatus for wireless charging are disclosed. A wireless charging device has a plurality of planar power transmitting coils, a coil substrate and a driver circuit. Each planar power transmitting coil may be formed as a spiral winding surrounding a power transfer area. In one example, each planar power transmitting coil is formed by spiral winding a multi-strand wire, each strand in the multistrand wire being electrically insulated from each other strand in the multi-strand wire. The coil substrate may have a plurality of cutouts formed therein. The plurality of cutouts may be configured to secure the planar power transmitting coils in a preconfigured three-dimensional arrangement. The driver circuit may be configured to provide a charging current to one or more of the planar power transmitting coils when a chargeable device is placed on or near the wireless charging device.