Wireless power transmission device and wireless power charging system including the same
First Claim
Patent Images
1. A wireless power transmission device comprising:
- a mounting member;
a first terminal and a second terminal mounted on the mounting member; and
a transmission coil mounted on the mounting member,wherein the transmission coil includes;
an outer transmission coil connected to the first terminal; and
an inner transmission coil connected to the second terminal, and extending from the outer transmission coil and spaced apart from the outer transmission coil and being wound inside the outer transmission coil to correspond to the outer transmission coil, having a radius less than that of the outer transmission coil,wherein the outer transmission coil and the inner transmission coil are symmetrical with respect to a center of each of the outer and inner transmission coils, andwherein the inner transmission coil is wound 20 mm to 30 mm apart from the outer transmission coil.
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Abstract
A wireless power transmission device includes a mounting member, first and second terminals mounted on the mounting member and a transmission coil connected to the first and second terminals. The transmission coil includes an outer transmission coil and an inner transmission coil extending from the outer transmission coil and having a radius less than that of the outer transmission coil, and a distance between the outer transmission coil and the inner transmission coil is in a range from 20 mm to 30 mm.
10 Citations
14 Claims
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1. A wireless power transmission device comprising:
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a mounting member; a first terminal and a second terminal mounted on the mounting member; and a transmission coil mounted on the mounting member, wherein the transmission coil includes; an outer transmission coil connected to the first terminal; and an inner transmission coil connected to the second terminal, and extending from the outer transmission coil and spaced apart from the outer transmission coil and being wound inside the outer transmission coil to correspond to the outer transmission coil, having a radius less than that of the outer transmission coil, wherein the outer transmission coil and the inner transmission coil are symmetrical with respect to a center of each of the outer and inner transmission coils, and wherein the inner transmission coil is wound 20 mm to 30 mm apart from the outer transmission coil. - View Dependent Claims (2, 3)
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4. A wireless power charging system comprising:
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a wireless power transmission device including an outer transmission coil and an inner transmission coil; and a wireless power reception device including a reception coil, wherein a distance between the outer transmission coil and the inner transmission coil is half a width of the reception coil. - View Dependent Claims (5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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Specification