Noncontact power feed system, noncontact relay apparatus, noncontract power reception apparatus, and noncontact power feed method
First Claim
1. A noncontact power feed system, comprising:
- a noncontact power feed apparatus includinga power feed resonance device to supply alternate-current power to an electronic apparatus by resonance in a noncontact manner, andan alternate-current power source section to generate the alternate-current power having a frequency corresponding to a resonant frequency of the power feed resonance device and supply the alternate-current power to the power feed resonance device;
a noncontact relay apparatus includinga relay resonance device to receive supply of the alternate-current power from the power feed resonance device of the noncontact power feed apparatus by resonance in a noncontact manner and relay the alternate-current power to another electronic apparatus by resonance in a noncontact manner,a relay-side rectifier circuit to form direct-current power based on the alternate-current power supplied from the relay resonance device and output the direct-current power, anda movement means for moving the noncontact relay apparatus by being driven by the direct-current power from the relay-side rectifier circuit; and
at least one noncontact power reception apparatus includinga power reception resonance device to receive supply of the alternate-current power from the relay resonance device of the noncontact relay apparatus by magnetic field resonance in a noncontact manner,a power-reception-side rectifier circuit to form direct-current power based on the alternate-current power supplied from the power reception resonance device and output the direct-current power, anda load means driven by the direct-current power from the power-reception-side rectifier circuit.
1 Assignment
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Accused Products
Abstract
A noncontact power feed system includes: a noncontact power feed apparatus including a power feed resonance device to supply alternate-current power to an electronic apparatus by resonance in a noncontact manner, and an alternate-current power source section to generate the alternate-current power and supply it to the power feed resonance device; a noncontact relay apparatus including a relay resonance device to receive the alternate-current power and relay it to another electronic apparatus by resonance in a noncontact manner, a relay-side rectifier circuit to form direct-current power for output, and a movement means for moving the noncontact relay apparatus by the direct-current power; and at least one noncontact power reception apparatus including a power reception resonance device to receive the alternate-current power by magnetic field resonance in a noncontact manner, a power-reception-side rectifier circuit to form direct-current power for output, and a load means driven by the direct-current power.
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Citations
15 Claims
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1. A noncontact power feed system, comprising:
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a noncontact power feed apparatus including a power feed resonance device to supply alternate-current power to an electronic apparatus by resonance in a noncontact manner, and an alternate-current power source section to generate the alternate-current power having a frequency corresponding to a resonant frequency of the power feed resonance device and supply the alternate-current power to the power feed resonance device; a noncontact relay apparatus including a relay resonance device to receive supply of the alternate-current power from the power feed resonance device of the noncontact power feed apparatus by resonance in a noncontact manner and relay the alternate-current power to another electronic apparatus by resonance in a noncontact manner, a relay-side rectifier circuit to form direct-current power based on the alternate-current power supplied from the relay resonance device and output the direct-current power, and a movement means for moving the noncontact relay apparatus by being driven by the direct-current power from the relay-side rectifier circuit; and at least one noncontact power reception apparatus including a power reception resonance device to receive supply of the alternate-current power from the relay resonance device of the noncontact relay apparatus by magnetic field resonance in a noncontact manner, a power-reception-side rectifier circuit to form direct-current power based on the alternate-current power supplied from the power reception resonance device and output the direct-current power, and a load means driven by the direct-current power from the power-reception-side rectifier circuit. - View Dependent Claims (2, 3, 4, 15)
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5. A noncontact relay apparatus, comprising:
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a relay resonance device to receive supply of alternate-current power from a power feed resonance device of a noncontact power feed apparatus by resonance in a noncontact manner and relay the alternate-current power to another electronic apparatus by resonance in a noncontact manner; a relay-side rectifier circuit to form direct-current power based on the alternate-current power supplied from the relay resonance device and output the direct-current power; and a moving means for moving the noncontact relay apparatus by being driven by the direct-current power from the relay-side rectifier circuit. - View Dependent Claims (6, 7, 8)
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9. A noncontact power reception apparatus, comprising:
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a power reception resonance device to receive supply of alternate-current power from a relay resonance device of a noncontact power reception/relay apparatus having a movable structure driven by alternating current supplied by magnetic field resonance in a noncontact manner; a power-reception-side rectifier circuit to form direct-current power based on the alternate-current power supplied from the power reception resonance device and output the direct-current power; and a load means driven by the direct-current power from the power-reception-side rectifier circuit. - View Dependent Claims (10, 11)
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12. A noncontact power feed method in a noncontact power feed system, comprising:
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transmitting, by a first apparatus, alternate-current power via a first resonance coil in a resonance system; receiving, by a second apparatus, the alternate-current power transmitted from the first apparatus via a second resonance coil resonating at a frequency that is one of the same and substantially the same as a frequency of the first resonance coil of the first apparatus; relaying and transmitting, by the second resonance coil of the second apparatus, the alternate-current power received from the first apparatus; moving, the second apparatus by using the alternate-current power received from the first apparatus; receiving, by a third apparatus, the alternate-current power transmitted from the second apparatus via a third resonance coil resonating at a frequency that is one of the same and substantially the same as the frequency of the second resonance coil of the second apparatus when the second apparatus comes close to the third apparatus; and driving, by the third apparatus, a predetermined load circuit by using the alternate-current power received from the second apparatus.
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13. A noncontact power feed method in a noncontact relay apparatus, comprising:
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receiving alternate-current power transmitted from a noncontact power feed apparatus via a reception and transmission resonance coil resonating in a non-contact manner at a frequency that is one of the same and substantially the same as a frequency of a transmission resonance coil of the noncontact power feed apparatus; relaying and transmitting the alternate-current power received from the noncontact power feed apparatus via the reception and transmission resonance coil; and moving the noncontact relay apparatus by using the alternate-current power received from the noncontact power feed apparatus.
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14. A noncontact power feed method in a noncontact power reception apparatus, comprising:
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receiving alternate-current power transmitted from a noncontact power relay apparatus via a reception resonance coil resonating in a non-contact manner at a frequency that is one of the same and substantially the same as a frequency of a reception and transmission resonance coil of the noncontact power relay apparatus when the noncontact power relay apparatus having a movable structure driven by an alternating current comes close to the noncontact power reception apparatus; and driving a predetermined load circuit by using the alternate-current power received from the noncontact power reception/relay apparatus.
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Specification