APPARATUS FOR WIRELESS POWER TRANSFER, APPARATUS FOR WIRELESS POWER RECEPTION AND COIL STRUCTURE

摘要

The present invention relates to a signal transmission apparatus for wireless power transmission, which includes: a bowl-shaped transmission apparatus body; and a transmission coil part for wirelessly transmitting power to a signal reception apparatus based on power supplied from a power source. The transmission coil part may include a spiral coil part which is wound around the bottom surface of the signal transmission apparatus; and a helical coil part which is wound around a lateral surface of the signal transmission apparatus, has the radius of a coil loop gradually become greater toward an upper part thereof, and is extended from an end of the spiral coil part.