| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To reduce weight, to downsize dimensions, and to improve power feeding efficiency, with regard to a non-contact power feeding device that feed electric power to a motor-driven moving body by a non-contact method and a wire-less system provided with the device. <P>SOLUTION: A power feeder is provided with a primary core 7 made up of a roughly annular core body 8 in a portion of which openings are formed, and movable cores 9a, 9b that open or connect the openings; primary coils 10a, 10b wound on the primary core 7; and a charging power source 5 that feeds high-frequency electric power to the primary coils 10a, 10b. A power receiving terminal is provided with a secondary coil 11 and an electricity storing device 13 connected to the secondary coil 11. When power is fed from the charging power source 5 to the electricity-storing device 13, the movable cores 9a, 9b enter the hollow portion of the secondary coil 11 to connect the openings of a core body 8 crossing the secondary coil 11. When power is not fed, the movable cores 9a, 9b leave the hollow portion of the secondary coil 11 to open the openings of the core body 8. <P>COPYRIGHT: (C)2005,JPO&NCIPI</p> |
