CONTACTLESS CHARGING MODULE, CONTACTLESS CHARGING DEVICE, AND METHOD OF MANUFACTURING CONTACTLESS CHARGING MODULE
First Claim
1. A non-contact charging module comprising:
- a planar coil formed of a wound conductive wire;
a magnetic sheet on which a coil surface of the planar coil is to be mounted and which is provided opposite to the coil surface of the planar coil ;
a recessed portion or a slit provided in the magnetic sheet, the recessed portion or the slit extending from a winding start point of the planar coil to an end portion of the magnetic sheet and housing a part of the conductive wire of the planar coil; and
a plurality of flexible slits that provide flexibility to the magnetic sheet, wherein;
a relationship between width W of the recessed portion or the slit and pitch P of the plurality of flexible slits is W≦
P;
at least one of the plurality of flexible slits extends in parallel to a longitudinal direction of the recessed portion or the slit and a virtual extension of the flexible slit is placed within the width of the recessed portion or the slit.
1 Assignment
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Accused Products
Abstract
A contactless charging module, a contactless charging device, and a method of manufacturing the contactless charging module, wherein a magnetic sheet can be prevented from being damaged and giving an adverse effect on power transmission characteristic, by adopting a flexible magnetic sheet having slits, and wherein power transmission efficiency of the contactless charging module can be prevented from decreasing significantly. The contactless charging module is provided with: a planar coil unit; a magnetic sheet upon which the planar coil unit is to be mounted; a recess section or a slit that is formed on the magnetic sheet, and that is for housing therein a portion of a conductor wire of the planar coil unit; and a plurality of flexible slits that are for giving flexibility to the magnetic sheet. At least one of the plurality of flexible slits is formed such that a virtual extension line of the flexible slit will be arranged within the width of the recess section or the slit.
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Citations
17 Claims
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1. A non-contact charging module comprising:
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a planar coil formed of a wound conductive wire; a magnetic sheet on which a coil surface of the planar coil is to be mounted and which is provided opposite to the coil surface of the planar coil ; a recessed portion or a slit provided in the magnetic sheet, the recessed portion or the slit extending from a winding start point of the planar coil to an end portion of the magnetic sheet and housing a part of the conductive wire of the planar coil; and a plurality of flexible slits that provide flexibility to the magnetic sheet, wherein; a relationship between width W of the recessed portion or the slit and pitch P of the plurality of flexible slits is W≦
P;at least one of the plurality of flexible slits extends in parallel to a longitudinal direction of the recessed portion or the slit and a virtual extension of the flexible slit is placed within the width of the recessed portion or the slit. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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Specification