| abstract |
The invention provides the contactless power supply device that a kind of detection is blended into power transmission coil and is subject to the foreign matter between electric coil. Contactless power supply device of the present invention possesses: the second coil, its at least by magnetic coupling and the first coil between in non-contacting mode, electric power is carried out power transmission or is subject to electricity; Multiple sensors, it is for detection of the position deviation between the first coil and the second coil; Position detection unit, it detects the relative position of the first coil and the second coil according to multiple sensors output valve separately; Foreign matter detecting unit, it compares multiple sensors output valve separately, detects the foreign matter between the first coil and the second coil according to comparative result. |