WIRELESS POWER TRANSMISSION DEVICE, WIRELESS POWER RELAY DEVICE, AND WIRELESS POWER TRANSMISSION SYSTEM

摘要

The present invention relates to a wireless power transmission device, a wireless power relay device, and a wireless power transmission system using the same. The wireless power relay device includes a relay coil configured to receive power from the resonant coil of a wireless power transmission device by way of magnetic resonance and transmit the received power to another adjacent wireless power relay device by way of magnetic resonance and a communication unit configured to transmit and receive pieces of information about power transfer states through communication with the wireless power transmission device or other wireless power relay devices, wherein the wireless power relay device forms a mesh structure along with one or more adjacent wireless power relay devices and provides a power transmission path from the wireless power transmission device to a wireless power reception device through the formed mesh structure.