Patent ID: 8928278
Filing Date: 2015-01-06
Classification: H01F,H02J

Abstract:
1. A non-contact charging module that performs power transmission with another non-contact charging module, the non-contact charging module comprising: a planar coil in which a conducting wire is wound; and a magnetic sheet that places the planar coil, wherein the magnetic sheet has a hole provided within an inner winding of the planar coil; and the non-contact charging module has a case where a magnet included within an inner winding of the planar coil in another non-contact charging module is used to align with the non-contact charging module or a case where the magnet is not used to align with the transmission-side non-contact charging module; wherein both first L value which is the L value of the planar coil when a magnet is included within an inner winding of the planar coil in another non-contact charging module and second L value which is the L value of the planar coil when a magnet isn't included within an inner winding of the planar coil in another non-contact charging module are between third L value and fourth L value, the third L value is the L value of a planar coil which is placed on a magnetic sheet which doesn't have a hole provided within an inner winding of the planar coil when a magnet is included within an inner winding of the planar coil in another non-contact charging module, and the fourth L value is the L value of a planar coil which is placed on a magnetic sheet which doesn't have a hole provided within an inner winding of the planar coil when a magnet isn't included within an inner winding of the planar coil in another non-contact charging module.