This power receiving device is provided with: a power receiving antenna for wirelessly receiving alternating-current power from a power transmitting antenna of a power transmitting device; a power receiving circuit for converting the alternating-current power received from the power receiving antenna into direct-current power and outputting the same; a charge/discharge control circuit for controlling charging and discharging of an electricity storage device which is charged by means of the direct-current power output from the power receiving circuit; and a switching circuit connected between the power receiving circuit and the charge/discharge control circuit, and between either the electricity storage device or another electricity storage device and the charge/discharge control circuit. The charge/discharge control circuit is activated by means of energy accumulated in the electricity storage device or the other electricity storage device. The switching circuit switches between a first state for supplying power to the charge/discharge control circuit from the electricity storage device or the other electricity storage device, and a second state for supplying power to the charge/discharge control circuit from the power receiving circuit.
受电装置具备:受电天线,从送电装置中的送电天线以无线方式接受交流电力;受电电路,将所述受电天线所接受的所述交流电力变换成直流电力并输出;充放电控制电路,控制通过从所述受电电路输出的所述直流电力来充电的蓄电装置的充电以及放电;和切换电路,连接在所述受电电路与所述充放电控制电路之间且连接在所述蓄电装置或其他蓄电装置与所述充放电控制电路之间。所述充放电控制电路通过蓄积于所述蓄电装置或所述其他蓄电装置的能量来启动。所述切换电路对从所述蓄电装置或所述其他蓄电装置向所述充放电控制电路供电的第1状态、和从所述受电电路向所述充放电控制电路供电的第2状态进行切换。
POWER RECEIVING DEVICE, MOVING BODY, WIRELESS POWER TRANSMISSION SYSTEM, AND MOVING BODY SYSTEM
受电装置、移动体、无线电力传输系统以及移动体系统
2021-11-23
Patent
Electronic Resource
Chinese
POWER RECEIVING DEVICE, MOVING BODY, WIRELESS POWER TRANSMISSION SYSTEM, AND MOVING BODY SYSTEM
European Patent Office | 2020
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