| 摘要 |
A non-contact power supply device (1) of the present invention comprises: a non-contact power supply element (41) and a high-frequency power supply circuit (5) both provided in a fixed unit (2); and a non-contact power receiving element (6) and a power receiving circuit (7) both provided in a movable unit (3), said power receiving circuit (7) supplying power to a power load (L) in the movable unit (3). The non-contact power supply device (1) further comprises: a non-contact transmitting element (integrated with 6) provided in the movable unit (3) and electrically connected to the non-contact power receiving element (6); a non-contact receiving element (42) provided in the fixed unit (2), spaced from and facing the non-contact transmitting element, and receiving an electrical signal indicating an operation state of the power load (L) in a non-contact fashion; and a detection circuit (8) provided in the fixed unit (2) and detecting the operation state of the power load (L) on the basis of the electrical signal (Sgnl) from the non-contact receiving element (42). This enables an electric circuit on the side of the movable unit (3) to be simplified while enhancing the operational stability of the power load (L) in the movable unit (3) and the movable unit (3) to be reduced in size and weight, thereby contributing to the reductions of supplied power and device cost. |
