Power feeding device, power receiving device, and wireless power feed system

    公开(公告)号:US11843259B2

    公开(公告)日:2023-12-12

    申请号:US17887305

    申请日:2022-08-12

    摘要: A wireless power feed system with high transfer efficiency of electric power is disclosed. The wireless power feed system includes a power feeding device and a power receiving device, wherein the power feeding device includes a first electromagnetic coupling coil that is connected to an AC power source via a directional coupler; a first resonant coil; a switch connected to the opposite ends of the first resonant coil; a control circuit which conducts switching on/off of the switch based on a parameter of an amplitude of a reflective wave detected by the directional coupler; and an analog-digital converter provided between the first electromagnetic coupling coil and the control circuit; and the power receiving device includes a second resonant coil; and a second electromagnetic coupling coil, and wherein the first electromagnetic coupling coil is provided between the first resonant coil and the second resonant coil.

    Coil unit
    9.
    发明授权

    公开(公告)号:US11574770B2

    公开(公告)日:2023-02-07

    申请号:US17517209

    申请日:2021-11-02

    发明人: Toru Nakamura

    摘要: A power-transmission-side coil unit includes: a housing including a metal case body and a resin cover, an electric device provided in the housing, a metal substrate disposed between the cover and the electric device and covering the electric device, and a power transmission coil. The case body includes a base portion, and a ring-shaped wall portion protruding toward the cover along the outer peripheral edge of base portion inside the outer peripheral edge of base portion. The metal substrate includes a partition wall disposed between the cover and the electric device, and a peripheral wall extending from the partition wall toward the base portion. An end portion of the peripheral wall is disposed in the D direction relative to the upper face of the ring-shaped wall portion. At least part of a lateral face of the peripheral wall is in contact with a lateral face of the ring-shaped wall portion.

    ENERGY DISTRIBUTION SYSTEM
    10.
    发明申请

    公开(公告)号:US20230009250A1

    公开(公告)日:2023-01-12

    申请号:US17786395

    申请日:2020-12-21

    申请人: Siemens Energy AS

    摘要: An electrical energy distribution system for a vessel or platform includes a plurality of DC buses, each DC bus coupled to a corresponding energy storage bus; each energy storage bus being coupled to a neighboring energy storage bus of the system through a first DC/DC converter. The plurality of energy storage buses are connected together to form a ring. Each energy storage bus is further coupled to an energy store through a second DC/DC converter.