CONTACTLESS POWER TRANSMISSION DEVICE

A non-contact power transmission system according to the present invention includes a power transmitting coil 12 and a power receiving coil 18 facing the power transmitting coil. At least one of the power transmitting coil 12 and the power receiving coil 18 includes a first coil 31 in which a wire 30 is wound around a first core 33, and a second coil 32 in which a wire 30 is wound around a second core 33. The second coil 32 is placed at at least one end of a winding axis of the first coil 31. A winding axis of the second coil 32 is inclined with respect to the winding axis of the first coil 31 toward the power transmitting or receiving coil 12 or 18 that faces the second coil.