WIRELESS POWER TRANSFER SYSTEM AND WIRELESS POWER TRANSFER METHOD
First Claim
1. A wireless power transfer system comprising:
- a power transmitter including a power transmission resonator composed of a power transmission coil and a resonant capacitance; and
a power receiver including a power receiving resonator composed of a power receiving coil and a resonant capacitance,thereby transferring power from the power transmitter to the power receiver through an interaction between the power transmission coil and the power receiving coil,wherein the wireless power transfer system further comprises a power transmission auxiliary device including an auxiliary resonator composed of an auxiliary coil and a resonant capacitance,the power transmission auxiliary device and the power transmission device are arranged so as to oppose each other, forming a power receiving space for placing the power receiving coil between the power transmission coil and the auxiliary coil, andpower transfer is performed in the power receiving space while involving a movement of the power receiving coil including at least one of a displacement and a rotation.
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Accused Products
Abstract
A wireless power transfer system includes a power transmitter including a power transmission resonator composed of a power transmission coil and a resonant capacitance; and a power receiver including a power receiving resonator composed of a power receiving coil and a resonant capacitance. The system further includes a power transmission auxiliary device including an auxiliary resonator composed of an auxiliary coil and a resonant capacitance. The power transmission auxiliary device and the power transmission device oppose each other, forming a power receiving space for placing the power receiving coil between the power transmission coil and the auxiliary coil, and power transfer is performed in the power receiving space while involving a movement of the power receiving coil including at least one of a displacement and a rotation. The power transfer can be performed with stable efficiency in spite of the movement of the power receiver.
260 Citations
26 Claims
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1. A wireless power transfer system comprising:
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a power transmitter including a power transmission resonator composed of a power transmission coil and a resonant capacitance; and a power receiver including a power receiving resonator composed of a power receiving coil and a resonant capacitance, thereby transferring power from the power transmitter to the power receiver through an interaction between the power transmission coil and the power receiving coil, wherein the wireless power transfer system further comprises a power transmission auxiliary device including an auxiliary resonator composed of an auxiliary coil and a resonant capacitance, the power transmission auxiliary device and the power transmission device are arranged so as to oppose each other, forming a power receiving space for placing the power receiving coil between the power transmission coil and the auxiliary coil, and power transfer is performed in the power receiving space while involving a movement of the power receiving coil including at least one of a displacement and a rotation. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25)
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26. A wireless power transmission method using:
- a power transmitter including a power transmission resonator composed of a power transmission coil and a resonant capacitance; and
a power receiver including a power receiving resonator composed of a power receiving coil and a resonant capacitance, thereby transferring power from the power transmitter to the power receiver through an interaction between the power transmission coil and the power receiving coil, wherein the method further uses a power transmission auxiliary device including an auxiliary resonator composed of an auxiliary coil and a resonant capacitance, a power receiving space for placing the power receiving coil is formed between the power transmission coil and the auxiliary coil by arranging the power transmission auxiliary device and the power transmission device to oppose each other, and power transfer is performed in the power receiving space while involving a movement of the power receiving coil including at least one of a displacement and a rotation.
- a power transmitter including a power transmission resonator composed of a power transmission coil and a resonant capacitance; and
Specification