Magnetic sheet, wireless charging sheet and method for manufacturing magnetic sheet
AssigneeSamsung Electro-Mechanics Co., Ltd.
InventorsJeong Gu Yeo, Kang Ryong Choi, Dong Hyeok Choi, Sung Yong An, Chang Ryul Jung, Ji Man Ryu
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Abstract
The present invention relates to a magnetic sheet, a wireless charging sheet, and a method for manufacturing a magnetic sheet. According to an embodiment of the present invention, a magnetic sheet used in a wireless charging sheet, which includes a metal sheet layer consisting of a plurality of divided segments; and an insulating material filled in a dividing space between the segments and forms a magnetic path of a magnetic field generated around a coil, is provided. Further, a wireless charging sheet and a method for manufacturing a magnetic sheet are provided.
Claims16
A magnetic sheet, comprising:
- a stacked structure formed by a plurality of alloy ribbon layers;
- an adhesive layer interposed between the plurality of alloy ribbon layers;
- and
- a protection layer disposed on at least one surface of the stacked structure and consisting of a plurality of divided segments,
- wherein each alloy ribbon layer comprises:
- a metal sheet layer consisting of a plurality of divided segments;
- and
- an insulating material filled in a dividing space between the segments of the metal sheet layer.
A wireless charging sheet comprising:
- a coil layer;
- a metal body stacked on top or bottom of the coil layer;
- and
- a magnetic sheet interposed between the coil layer and the metal body and comprising:
- a stacked structure formed by a plurality of alloy ribbon layers, an adhesive layer interposed between the plurality of alloy ribbon layers, and a protection layer formed on at least one surface of the stacked structure and consisting of a plurality of divided segments, wherein each alloy ribbon layer comprises:
- a metal sheet layer consisting of a plurality of divided segments, and
- an insulating material filled in a dividing space between the segments of the metal sheet layer.
Dependencies are inferred from the claim text.