Wireless power relay device and wireless power transmission system
First Claim
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1. A wireless power relay device comprising:
- a plurality of relay coils arranged at respective points, and configured to relay power transmission by capturing a magnetic field transmitted by a wireless power transmission device to provide to at least one wireless power receiving device,wherein power is wirelessly transmitted from the wireless power transmission device through a subset of the plurality of relay coils in a path to a relay coil at a predetermined point which is farthest away from the wireless power transmission device at an end portion of the wireless power relay device,wherein the wireless power relay device is configured such that, of the plurality of relay coils, the relay coil at the predetermined point is closest to the at least one wireless power receiving device,wherein the relay coil at the predetermined point has a larger impedance value than impedance values of other relay coils of the subset of the plurality of relay coils in the path to prevent induction of high voltage in the relay coil at the predetermined point.
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Abstract
The present invention is mainly directed to providing a wireless power relay device and a wireless power transmission system, which are capable of reinforcing a relay coil in which a high voltage is induced among a plurality of relay coils, thereby preventing the relay coil from being damaged due to the induction of the high voltage.
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Citations
12 Claims
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1. A wireless power relay device comprising:
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a plurality of relay coils arranged at respective points, and configured to relay power transmission by capturing a magnetic field transmitted by a wireless power transmission device to provide to at least one wireless power receiving device, wherein power is wirelessly transmitted from the wireless power transmission device through a subset of the plurality of relay coils in a path to a relay coil at a predetermined point which is farthest away from the wireless power transmission device at an end portion of the wireless power relay device, wherein the wireless power relay device is configured such that, of the plurality of relay coils, the relay coil at the predetermined point is closest to the at least one wireless power receiving device, wherein the relay coil at the predetermined point has a larger impedance value than impedance values of other relay coils of the subset of the plurality of relay coils in the path to prevent induction of high voltage in the relay coil at the predetermined point. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A wireless power transmission system comprising:
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a wireless power transmission device configured to transmit power through a magnetic field; and a plurality of relay coils arranged at respective points, and configured to capture and relay the magnetic field transmitted by the wireless power transmission device to provide to at least one wireless power receiving device, wherein the wireless power transmission system transmits power through a subset of the plurality of relay coils in a path to a relay coil at a predetermined point which is farthest away from the wireless power transmission device at an end portion of the wireless power relay device, wherein the relay coil at the predetermined point has a higher impedance value than impedance values of other relay coils of the subset of the plurality of relay coils in the path to prevent induction of high voltage in the relay coil at the predetermined point. - View Dependent Claims (8, 9, 10, 11, 12)
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Specification