Receiving antenna and wireless power receiving device including the same
DC CAFCFirst Claim
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1. A wireless power receiving antenna comprising:
- a substrate;
a soft magnetic layer comprising a first magnetic sheet disposed on the substrate and a second magnetic sheet disposed on the first magnetic sheet;
a receiving coil disposed on the second magnetic sheet; and
an adhesive layer formed between the second magnetic sheet and the receiving coil,wherein the adhesive layer includes a first adhesive layer in contact with the second magnetic sheet, a second adhesive layer in contact with the receiving coil, and an insulating layer disposed between the first adhesive layer and the second adhesive layer, andwherein a height of a highest position of the second magnetic sheet from the substrate is higher than a height of a lowest position of the receiving coil from the substrate.
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Abstract
A receiving antenna of a wireless power receiving device wirelessly charging electric power according to an embodiment of the present invention includes a substrate, a soft magnetic layer stacked on the substrate, and a receiving coil configured to receive electromagnetic energy emitted from a wireless power transmission device, wound in parallel with a plane of the soft magnetic layer, and formed inside of the soft magnetic layer, and an insulating layer is formed between the soft magnetic layer and the receiving coil.
13 Citations
19 Claims
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1. A wireless power receiving antenna comprising:
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a substrate; a soft magnetic layer comprising a first magnetic sheet disposed on the substrate and a second magnetic sheet disposed on the first magnetic sheet; a receiving coil disposed on the second magnetic sheet; and an adhesive layer formed between the second magnetic sheet and the receiving coil, wherein the adhesive layer includes a first adhesive layer in contact with the second magnetic sheet, a second adhesive layer in contact with the receiving coil, and an insulating layer disposed between the first adhesive layer and the second adhesive layer, and wherein a height of a highest position of the second magnetic sheet from the substrate is higher than a height of a lowest position of the receiving coil from the substrate. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method of fabricating a wireless power receiving antenna, the method comprising:
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preparing a substrate; disposing a first soft magnetic sheet including a Fe—
Si based alloy on the substrate;stacking a plurality of the soft magnetic sheets by stacking a second soft magnetic sheet including the Fe—
Si based alloy on the first soft magnetic sheet;disposing an adhesive layer on the second soft magnetic sheet; disposing a receiving coil on the adhesive layer; and compressing the plurality of the soft magnetic sheets, the adhesive layer, and the receiving coil, wherein the adhesive layer includes a first adhesive layer in contact with the second soft magnetic sheet, a second adhesive layer in contact with the receiving coil, and an insulating layer disposed between the first adhesive layer and the second adhesive layer, and wherein compressing the plurality of the soft magnetic sheets, the adhesive layer, and the receiving coil includes forming a height of a highest position of the second magnetic sheet from the substrate so to be higher than a height of a lowest position of the receiving coil from the substrate. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17)
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18. A wireless power receiving apparatus comprising a receiving circuit and a wireless power receiving antenna, the wireless power receiving antenna comprising:
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a substrate; a soft magnetic layer comprising a first magnetic sheet disposed on the substrate and a second magnetic sheet disposed on the first magnetic sheet; a receiving coil disposed on the second magnetic sheet, and an adhesive layer formed between the second magnetic sheet and the receiving coil; wherein the adhesive layer includes a first adhesive layer in contact with the second magnetic sheet, a second adhesive layer in contact with the receiving coil, and an insulating layer disposed between the first adhesive layer and the second adhesive layer, and wherein a height of a highest position of the second magnetic sheet from the substrate is higher than a height of a lowest position of the receiving coil from the substrate. - View Dependent Claims (19)
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Specification