MAGNETIC FIELD SHIELDING SHEET FOR A WIRELESS CHARGER, METHOD FOR MANUFACTURING SAME, AND RECEIVING APPARATUS FOR A WIRELESS CHARGER USING THE SHEET
First Claim
1. A magnetic field shield sheet for a wireless charger, the magnetic field shield sheet comprising:
- a thin magnetic sheet separated into a plurality of fine pieces; and
an adhesive member adhered on one surface of the thin magnetic sheet such that the adhesive member is adhered to the plurality of fine pieces;
wherein at least parts of the fine pieces are mutually isolated.
3 Assignments
0 Petitions
Accused Products
Abstract
Provided are a magnetic field shield sheet for a wireless charger, a method of manufacturing the sheet, and a receiver for the wireless charger by using the sheet. The sheet includes at least one layer thin magnetic sheet made of an amorphous ribbon separated into a plurality of fine pieces; a protective film that is adhered on one surface of the thin magnetic sheet via a first adhesive layer provided on one side of the protective film; and a double-sided tape that is adhered on the other surface of the thin magnetic sheet via a second adhesive layer provided on one side of the double-sided adhesive tape, wherein gaps among the plurality of fine pieces are filled by some parts of the first and second adhesive layers, to thereby isolate the plurality of fine pieces.
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Citations
13 Claims
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1. A magnetic field shield sheet for a wireless charger, the magnetic field shield sheet comprising:
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a thin magnetic sheet separated into a plurality of fine pieces; and an adhesive member adhered on one surface of the thin magnetic sheet such that the adhesive member is adhered to the plurality of fine pieces; wherein at least parts of the fine pieces are mutually isolated. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method of manufacturing a magnetic field shield sheet for a wireless charger, the method comprising the steps of:
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providing a thin magnetic sheet of at least one layer; adhering an adhesive member on one surface of the thin magnetic sheet; arranging a protective member on the other surface of the thin magnetic sheet; performing a flake treatment process of the thin magnetic sheet adhered to the adhesive member to thus separate the thin magnetic sheet into a plurality of fine pieces; and filling some parts of an adhesive layer formed on the adhesive member into gaps among the plurality of fine pieces. - View Dependent Claims (11)
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12. A reception device for a wireless charger that charges a secondary battery from a transmission device for the wireless charger, the reception device comprising:
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a coil unit that receives a wireless signal transmitted from the transmission device; and a magnetic field shield sheet that is disposed between the coil unit and the secondary battery, wherein the magnetic field shield sheet comprises; a thin magnetic sheet separated into a plurality of fine pieces; and an adhesive member adhered on one surface of the thin magnetic sheet such that the adhesive member is adhered to the plurality of fine pieces; wherein at least parts of the fine pieces are mutually isolated. - View Dependent Claims (13)
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Specification