Patent ID: 9426933
Filing Date: 2016-08-23
CPC Classification: B60L,H01F,H01Q,H02J,H05K,Y02T

Claim Text:
1. A resonance type non-contact power feeding system which transmits power from a power transmission side resonance coil portion to a power reception side resonance coil portion by a non-contact resonance action, wherein a power transmission side apparatus including the power transmission side resonance coil portion includes: a power transmission side coaxial cable which electrically connects a high-frequency power source to the power transmission side resonance coil portion; a first power transmission side shielding unit covering the power transmission side resonance coil portion from outside with a good conductor; and a second power transmission side shielding unit covering the power transmission side coaxial cable and the first power transmission side shielding unit; wherein an external conductor of the power transmission side coaxial cable, the first power transmission side shielding unit, a housing of the high-frequency power source, and the second power transmission side shielding unit are connected at the same potential; and wherein a power reception side apparatus including the power reception side resonance coil portion includes: a first power reception side shielding unit covering the power reception side resonance coil portion from outside with a good conductor; a second power reception side shielding unit covering a rectifier that rectifies alternating current generated in the power reception side resonance coil portion into direct current, from outside with a good conductor; a third power reception side shielding unit covering the first power reception side shielding unit and the second power reception side shielding unit, and an output line shielding unit covering, in output lines from the rectifier to a load device, the output line in a section from the third power reception side shielding unit to a housing of the load device; and wherein the first power reception side shielding unit, the second power reception side shielding unit, the third power reception side shielding unit, and the output line shielding unit are connected at the same potential.