A TOROIDAL STRUCTURE OF A WPT RECEIVING COIL TO APPLY ROTATING SPINDLE

摘要

The present invention relates to a wireless power supplying system which supplies electric power more stably to an electrical device mounted in a rotating body while the rotating body rotates. The present invention provides a wireless power supplying system that supplies electric power to the rotating body and includes: a wireless electric power transmission device which is installed to be separated from the rotating body, generates high-frequency power from input electric power, and wirelessly transmits the high-frequency power by electromagnetic sensing resonance; and at least one wireless power receiving device which is installed to be mounted on the rotating body, receives the electric power transmitted from the wireless power transmission device by electromagnetic sensing resonance, and supplies the electric power to the electrical device. The wireless power receiving device includes a coil wound in the shape of an oval or of a rectangular having a side in parallel with the direction of a circumference of the rotating body and another side in parallel with the direction of an axis of the rotating body.