CONTACTLESS POWER TRANSMISSION SYSTEM
First Claim
1. A contactless power transmission system comprising:
- a power reception apparatus; and
a power transmission apparatus that transmits power contactlessly to the power reception apparatus,wherein the power transmission apparatus includes;
a high-frequency power source device that outputs a constant high-frequency current; and
a plurality of power transmission units that are connected to each other in series and each include a power transmission coil and a resonance capacitor connected in series to the power transmission coil,the power reception apparatus includes a plurality of power reception units respectively associated with the plurality of power transmission units, wherein outputs of the plurality of power reception units are connected in parallel and are output to a load, and the plurality of power reception units each include;
a power reception coil magnetically coupled to the power transmission coil of a corresponding power transmission unit; and
a resonance capacitor connected to the power reception coil.
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Accused Products
Abstract
A contactless power transmission system is provided for supplying power contactlessly from a power transmission apparatus to a power reception apparatus. The power transmission apparatus includes a high-frequency power source device for outputting a constant high-frequency current, and power transmission units having serial resonance circuits. The power reception apparatus includes power reception units having parallel resonance circuits. A power transmission coil of the power transmission unit and a power reception coil of the power reception unit are magnetically coupled. The power transmission units are connected in series, while the power reception units are connected in parallel. Power is transmitted from the power transmission unit to the power reception unit by magnetic field resonance.
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Citations
20 Claims
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1. A contactless power transmission system comprising:
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a power reception apparatus; and a power transmission apparatus that transmits power contactlessly to the power reception apparatus, wherein the power transmission apparatus includes;
a high-frequency power source device that outputs a constant high-frequency current; and
a plurality of power transmission units that are connected to each other in series and each include a power transmission coil and a resonance capacitor connected in series to the power transmission coil,the power reception apparatus includes a plurality of power reception units respectively associated with the plurality of power transmission units, wherein outputs of the plurality of power reception units are connected in parallel and are output to a load, and the plurality of power reception units each include;
a power reception coil magnetically coupled to the power transmission coil of a corresponding power transmission unit; and
a resonance capacitor connected to the power reception coil. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification