| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a non-contact power feeding device in which reliability is enhanced firstly, cost is reduced secondly, and power feeding control depending on the state of charge is achieved thirdly. <P>SOLUTION: The non-contact power feeding device 1 feeds electric power from the primary coil 3 of a primary circuit 8 to the secondary coil 5 of a secondary circuit 6 based on mutual induction of electromagnetic induction while keeping an air gap G. Power can be fed by stop feeding system, and a battery 7 is connected with the secondary circuit 6 so that it can be charged. A motor 17, e.g. a stepping motor 22, which is rotated at a rotation number proportional to the charging voltage of the battery 7, and a magnet 18 which is rotated by the motor 17 are arranged on the secondary side 4. A detection means 19, e.g. a reed switch 23, which can detect rotation of the magnet 18 by the magnetic field, and a control system 20 capable of controlling power supply while recognizing the state of charge of the battery 7 based on a detection signal from the detection means 19 are arranged on the primary side 2. <P>COPYRIGHT: (C)2012,JPO&INPIT |
