INSULATING POWER FEEDING DEVICE FOR MOVING BODY

PROBLEM TO BE SOLVED: To provide a non-contact power feeding device which is compact and lightweight, capable of feeding power to a moving body while the moving body is moving, especially to provide a non-contact power feeding device capable of battery-charging an automated guided vehicle using a battery as power supply while maintaining an electrically insulating state. SOLUTION: The power feeding device charges the battery 41 of the moving body 20 from a primary coil 1 on the ground via a secondary coil 2 opposite to the primary coil 2 while using electromagnetic induction, wherein the primary coil 1 is formed by applying three-phase winding to the magnetic poles of a three-salient pole type magnetic material having an E-shape cross section and the plurality of primary coils in which three-phase magnetic poles are disposed in a direction perpendicular to the moving locus of the moving body are disposed per phase along the moving locus with predetermined intervals at equal pitches. Further, the primary coil 2 mounted on the moving body 20 is also formed by applying three-phase winding to the magnetic pole of the three-salient pole magnetic material similar to the primary coil 1, and the magnetic pole has a length of direction of the movement of the moving body which is equal to the pitch of moving direction of the magnetic pole of the primary coil 1. COPYRIGHT: (C)2010,JPO&INPIT