| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a non-contact power supply device that suppresses generation of leakage magnetic flux and improves power supply efficiency. <P>SOLUTION: In a non-contact power supply 10, windings 42 and 52 of coils 40 and 50 are arranged on both thickness-directional surfaces of cores 41 and 51, and also arranged so that thickness-directional one-side surfaces of both the cores 41 and 51 face each other. A part 42a of a power transmission winding 42 arranged on an opposite surface 41a is superposed and wound, and the part 42a of the power transmission winding 42 as a superposed uppermost layer is positioned more closely to a power receiving coil 50 than the other part 42b of the power transmission winding 42. Consequently, part of leakage magnetic flux can be cross-linked with a magnetic flux path formed by the power transmission coil 40 and the power receiving coil 50. <P>COPYRIGHT: (C)2013,JPO&INPIT |
