| 摘要 |
PROBLEM TO BE SOLVED: To provide a power transmission pad and non-contact power transmission system capable of reducing a leakage electromagnetic field by forming a magnetic flux flowing through a plate-like core so as to be smaller than that of the conventional one.SOLUTION: A power transmission pad includes a plate-like core 21b including a plurality of convex parts 21b1, 21b2, 21b4, each of which can be a magnetic pole P1, P2. Windings L1a, L1b, L1f are wound around the plurality of convex parts 21b1, 21b2, 21b4, respectively, so that at least part of each convex part's side surface part is covered along the entire periphery of the side surface part. The configuration forms a flow of a magnetic flux drawing a circle across convex parts 21b1, 21b2, 21b4 adjacent to each other and a flow of a magnetic flux surrounding the winding L1a, L1b, L1f wound around each of outer sides of the side surface parts of the convex parts 21b1, 21b4, which are on the end sides, etc. Therefore, a magnetic flux flowing through the plate-like core 21b can be formed so as to be smaller than that of the conventional power transmission pad, making it possible to reduce a leakage electromagnetic field E. |
