POWER RECEPTION/FEEDING DEVICE

摘要

In order to enable charging with sufficient power transmission efficiency even when the positioning accuracy of a power reception device with respect to a power feeding device is low, a power reception/feeding device is provided with: a power reception coil mechanism 2 which receives power using a magnetic field; a power feeding coil mechanism 3 which has a magnetic field generation surface 3a having a greater coil diameter than coil surfaces 2a, 2b of the power reception coil mechanism 2, and which is formed so that a magnetic field generation region of curved magnetic lines of force is greater than a magnetic field generation region of straight magnetic lines of force over the magnetic field generation surface 3a; and a magnetic member 4 disposed on the power reception coil mechanism 2.