NONCONTACT ELECTRIC POWER RECEIVING DEVICE, NONCONTACT ELECTRIC POWER TRANSMITTING DEVICE, NONCONTACT ELECTRIC POWER FEEDING SYSTEM, AND ELECTRICALLY POWERED VEHICLE
First Claim
1. A noncontact electric power receiving device comprising:
- an electric power receiving resonator for receiving electric power from an electric power transmitting resonator, which receives electric power from a power source to generate an electromagnetic field, by resonating with said electric power transmitting resonator through said electromagnetic field; and
an electromagnetism shielding material provided to surround said electric power receiving resonator and having an opening at one side thereof to allow said electric power receiving resonator to receive the electric power from said electric power transmitting resonator.
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Accused Products
Abstract
A first shielding box is disposed so that its first surface can be opposite to an electric power feeding unit. The first surface has an opening and remaining five surfaces thereof reflect, during reception of electric power from the electric power feeding unit, a resonant electromagnetic field (near field) generated in the surroundings of the electric power receiving unit. The electric power receiving unit is provided in the first shielding box to receive the electric power from the electric power feeding unit via the opening (first surface) of the first shielding box. A second shielding box has a similar configuration, i.e., has a second surface with an opening and remaining five surfaces thereof reflect the resonant electromagnetic field (near field) generated in the surroundings of the electric power feeding unit.
294 Citations
8 Claims
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1. A noncontact electric power receiving device comprising:
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an electric power receiving resonator for receiving electric power from an electric power transmitting resonator, which receives electric power from a power source to generate an electromagnetic field, by resonating with said electric power transmitting resonator through said electromagnetic field; and an electromagnetism shielding material provided to surround said electric power receiving resonator and having an opening at one side thereof to allow said electric power receiving resonator to receive the electric power from said electric power transmitting resonator. - View Dependent Claims (2, 3, 4, 5, 7)
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6. A noncontact electric power transmitting device comprising:
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an electric power transmitting resonator for receiving electric power from a power source to generate an electromagnetic field and transmitting the electric power to an electric power receiving resonator by resonating with said electric power receiving resonator through said electromagnetic field, and an electromagnetism shielding material provided to surround said electric power transmitting resonator and having an opening at one side thereof to allow the electric power to be transmitted from said electric power transmitting resonator to said electric power receiving resonator.
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8. An electrically powered vehicle comprising:
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an electric power receiving resonator for receiving electric power from an electric power transmitting resonator provided external to the vehicle, by resonating with said electric power transmitting resonator through an electromagnetic field; a rectifier for rectifying the electric power received by said electric power receiving resonator; an electric driving device for generating force to drive the vehicle, using the electric power rectified by said rectifier; and an electromagnetism shielding material provided to surround said electric power receiving resonator and having an opening at one side thereof to allow said electric power receiving resonator to receive the electric power from said electric power transmitting resonator.
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Specification