| 摘要 |
PROBLEM TO BE SOLVED: To provide a wireless power supply device for a vehicle in which lowering in transmission efficiency due to positional deviation is suppressed, by performing wireless power transmission by an electric field resonance system.SOLUTION: In a wireless power supply device 100 for a vehicle, a power transmission unit 110 including a power transmission circuit 111 for receiving power externally and outputting power of a predetermined frequency, and a power transmission coupler 112 for transmitting the power of the predetermined frequency, inputted from the power transmission circuit 111, by wireless is provided on the ground surface 10 side, and a power reception unit 120 including a power reception coupler 122 for receiving the power of the predetermined frequency from the power transmission coupler 112 by wireless, and a power reception circuit 121 for receiving the power of the predetermined frequency from the power reception coupler 122 and converting into a DC power is mounted on a vehicle 20. Wireless power supply from the power transmission coupler 112 standing on the ground surface to the power reception coupler 122 installed on the side surface or the front and back surfaces of a vehicle is performed using an electric field resonance system. |
