Wireless power charging system
First Claim
1. A wireless power receiving device which receives electric power wirelessly from a wireless power transmitting device, the wireless power receiving device including a reception coil unit, wherein the reception coil unit includes:
- an insulating layer;
a first coil including a first body portion disposed as a spiral on a first surface of the insulating layer and a first lead portion extending from a first end of the first body portion and led out of the insulating layer; and
a second coil including a second body portion disposed on a second surface of the insulating layer opposing the first surface and electrically connected to a second end of the first body portion through a via and a second lead portion extending from the second body portion and led out of the insulating layer,wherein the second coil has a width larger than that of the first coil and a thickness smaller than that of the first coil.
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Accused Products
Abstract
A wireless power charging system includes a reception coil unit including an insulating layer, a first coil including a first body portion disposed as a spiral on one surface of the insulating layer and a first lead portion extending from one end of the first body portion and led out of the insulating layer, and a second coil including a second body portion formed on the other surface of the insulating layer and electrically connected to the other end of the first body portion through a via and a second lead portion extending from the second body portion and led out of the insulating layer. The second coil has a width larger than that of the first coil and has a thickness smaller than that of the first coil.
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Citations
8 Claims
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1. A wireless power receiving device which receives electric power wirelessly from a wireless power transmitting device, the wireless power receiving device including a reception coil unit, wherein the reception coil unit includes:
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an insulating layer; a first coil including a first body portion disposed as a spiral on a first surface of the insulating layer and a first lead portion extending from a first end of the first body portion and led out of the insulating layer; and a second coil including a second body portion disposed on a second surface of the insulating layer opposing the first surface and electrically connected to a second end of the first body portion through a via and a second lead portion extending from the second body portion and led out of the insulating layer, wherein the second coil has a width larger than that of the first coil and a thickness smaller than that of the first coil. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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Specification