Power transfer system and noncontact charging device
First Claim
1. A power transfer system comprising:
- a power transmission device having a power transmission capacitive coupling electrode that includes a power transmission central conductor and a power transmission peripheral conductor that is arranged at a position surrounding the power transmission central conductor or at positions placing the power transmission central conductor in between in an insulated state from the power transmission central conductor;
a power reception device having a power reception capacitive coupling electrode that includes a power reception central conductor and a power reception peripheral conductor that is arranged at a position surrounding the power reception central conductor or at positions placing the power reception central conductor in between in an insulated state from the power reception central conductor;
an alternating voltage generating circuit that generates an alternating voltage that is applied between the power transmission central conductor and the power transmission peripheral conductor; and
a load circuit of electric power induced between the power reception central conductor and the power reception peripheral conductor, whereinthe power transmission central conductor operates as a high-voltage side electrode while the power reception peripheral conductor operates as a low-voltage side electrode.
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Abstract
A power transfer system includes a power transmission device and a power reception device. A central conductor and a peripheral conductor are formed near the upper surface of a casing of the power transmission device. The peripheral conductor surrounds the central conductor in an insulated state from the central conductor. An alternating voltage generating circuit is provided for the power transmission device and applies an alternating voltage between the central conductor and the peripheral conductor. A central conductor and a peripheral conductor are formed near the lower surface of a casing of the power reception device. The peripheral conductor surrounds the central conductor in an insulated state from the central conductor. A load circuit is provided for the power reception device, and a voltage induced between the central conductor and the peripheral conductor is applied to the load circuit.
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Citations
18 Claims
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1. A power transfer system comprising:
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a power transmission device having a power transmission capacitive coupling electrode that includes a power transmission central conductor and a power transmission peripheral conductor that is arranged at a position surrounding the power transmission central conductor or at positions placing the power transmission central conductor in between in an insulated state from the power transmission central conductor; a power reception device having a power reception capacitive coupling electrode that includes a power reception central conductor and a power reception peripheral conductor that is arranged at a position surrounding the power reception central conductor or at positions placing the power reception central conductor in between in an insulated state from the power reception central conductor; an alternating voltage generating circuit that generates an alternating voltage that is applied between the power transmission central conductor and the power transmission peripheral conductor; and a load circuit of electric power induced between the power reception central conductor and the power reception peripheral conductor, wherein the power transmission central conductor operates as a high-voltage side electrode while the power reception peripheral conductor operates as a low-voltage side electrode. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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Specification