VEHICLE ELECTRIC POWER CHARGE AND SUPPLY SYSTEM

摘要

PROBLEM TO BE SOLVED: To provide a vehicle electric power charge and supply system capable stably transmitting electric power to a vehicle irrespective of misalignment of the vehicle in right/left direction.SOLUTION: A power transmission antenna 105 which is disposed on a road face and a power reception antenna 107 which is disposed on the bottom face of a vehicle 101 resonate with each other at an identical resonant frequency and establish a magnetic field coupling. When the power reception antenna 107 enters an area where the power transmission antenna 105 is positioned, the electric power is transmitted. Stable transmission characteristics are obtained when the distance H between the power transmission antenna and the power reception antenna facing to each other is within a range of 0.11×W1≤H≤0.26×W1 with respect to a width W1 of the power transmission antenna area.SELECTED DRAWING: Figure 1A