NON-CONTACT POWER SUPPLY DEVICE, NON-CONTACT POWER RECEIVING DEVICE, AND NON-CONTACT POWER CHARGING SYSTEM

摘要

A non-contact power supply device (10) is provided with: a primary coil (L1) that can be magnetically coupled with a secondary coil (L2) of a non-contact power receiving device (20); a first temperature sensor (17) that detects the ambient temperature of the primary coil; a second temperature sensor (18) that detects the temperature at a different location to the first temperature sensor (17); and a control unit (14). The control unit (14) determines whether a value obtained by subtracting the temperature detected by the second temperature sensor (18) from the ambient temperature of the first coil detected by the first temperature sensor (17) exceeds a predetermined threshold value, and stops the power to the first coil (L1) when the subtracted value exceeds the threshold value.