Sheet for shielding electromagnetic waves for wireless charging and method of manufacturing the same
First Claim
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1. A sheet to shield electromagnetic waves for wireless charging, comprising:
- a base part; and
a magnetic material embedded in the base part,wherein a density of the magnetic material in a region of the magnetic material corresponding to a shape of a coil of a reception coil member or a transmission coil member and a region of the magnetic material corresponding to an inner side of the coil is higher than a density of the magnetic material in other regions of the magnetic material,wherein the coil comprises a spiral shape, andwherein a density of the magnetic material in a central region of the magnetic material bounded by a perimeter of a through-hole of the coil is higher than a density of the magnetic material in an outer region of the magnetic material surrounding the central region.
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Abstract
A sheet to shield electromagnetic waves for wireless charging includes: a base part formed of a resin; and a magnetic material embedded in the base part, wherein a density of the magnetic material in a region of the magnetic material corresponding to a shape of a coil of a reception coil member or a transmission coil member and a region of the magnetic material corresponding to an inner side of the coil is higher than a density of the magnetic material in other regions of the magnetic material.
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Citations
11 Claims
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1. A sheet to shield electromagnetic waves for wireless charging, comprising:
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a base part; and a magnetic material embedded in the base part, wherein a density of the magnetic material in a region of the magnetic material corresponding to a shape of a coil of a reception coil member or a transmission coil member and a region of the magnetic material corresponding to an inner side of the coil is higher than a density of the magnetic material in other regions of the magnetic material, wherein the coil comprises a spiral shape, and wherein a density of the magnetic material in a central region of the magnetic material bounded by a perimeter of a through-hole of the coil is higher than a density of the magnetic material in an outer region of the magnetic material surrounding the central region. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A wireless power reception apparatus, comprising:
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a base part; a wireless power reception coil; and a magnetic material embedded in the base part, wherein a density of the magnetic material in a region of the magnetic material corresponding to a shape of the wireless power reception coil and a region of the magnetic corresponding to an inner side of the wireless power reception coil is higher than a density of the magnetic material in other regions of the magnetic material, wherein the wireless power reception coil comprises a spiral shape, and wherein a density of the magnetic material in a central region of the magnetic material bounded by a perimeter of a through-hole of the power reception coil is higher than a density of the magnetic material in an outer region of the magnetic material surrounding the central region. - View Dependent Claims (10, 11)
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Specification