| 摘要 |
PROBLEM TO BE SOLVED: To provide a non-contact power transfer device which prevents unauthentic unlocking of a lock by specifying a locking location, based on a power feeding efficiency, to thereby prevent imperfect crime-preventive provision such as a half-locking state due to temporal deterioration. SOLUTION: In operation of the non-contact power transfer device, a query for checking a transfer destination is dispatched before power feeding, from a power feeding unit 2 to a power receiving unit 3. The power feeding unit 2 determines whether or not the transfer destination is authentic, based on collation of response information accompanying the query. If it is determined that the transfer destination is authentic, the power feeding unit calculates the power feeding efficiency, based on a power feeding state of the power feeding transfer section 2a and a power receiving state which a communication section 2b acquires from the power receiving unit 3, and it is determined whether or not an electric lock 3f of the power receiving unit 3 is in a correct locking position, based on the calculated power feeding efficiency. If the power feeding unit 2 confirms that the electric lock 3f of the power receiving unit 3 is in the correct locking position, the electric lock 3f carries out automatic locking thereof, based on a locking instruction via communication from the power feeding unit 2. COPYRIGHT: (C)2007,JPO&INPIT
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