NON-CONTACT POWER TRANSMISSION SYSTEM

摘要

PROBLEM TO BE SOLVED: To provide a non-contact power transmission system capable of suitably switching the presence/absence of transmission of electric power.SOLUTION: The non-contact power transmission system 1 includes: a power transmission apparatus 10 having electrodes 11, 12 for power transmission connected with a power supply 17; and a power reception apparatus 20 having electrodes 21, 22 for power reception that receives transmission of electric power by electric field resonant coupling to the electrodes for power transmission and supplying received power to a load. At least either one of the electrode for power transmission and the electrode for power reception can be moved relative to the other. The power reception apparatus is switched from a parasitic state to a feeding state when the electrode for power transmission and the electrode for power reception reach a predetermined positional relationship.