CONTACTLESS CHARGING MODULE AND RECEIVING-SIDE AND TRANSMISSION-SIDE CONTACTLESS CHARGER USING SAME

摘要

A contactless charging module which improves power transmission efficiency and which, even if magnets are used for alignment, prevents adverse effects of the magnets particularly on the inside part of the coil. This contactless charging module is a receiving-side contactless charging module to which power is transmitted by electromagnetic induction from a transmission-side contactless charging module provided with a magnet, and is characterized by being provided with a planar coil unit comprising a spirally-wound conducting wire, and a magnetic sheet which, disposed facing the coil surface of the planar coil unit, magnetically attracts the magnet of the transmission-side contactless module, wherein the inner diameter of the planar coil unit is larger than the magnet.