Coil unit, non-contact power transmitting apparatus, non-contact power receiving apparatus, vehicle, and non-contact power supply system
First Claim
Patent Images
1. A coil unit comprising:
- a second self-resonant coil formed of a conducting wire, the coil includes a plurality of unit coils that are disposed not to overlap each other when viewed along an axial direction of each unit coil, and a number of turns of each of the unit coils is set to one, and the coil performs at least one of transmission and reception of electric power to and from a first self-resonant coil spaced apart from the second self-resonant coil via electromagnetic resonance with the first self-resonant coil,wherein directions of magnetic fields formed by the unit coils are the same.
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Abstract
A coil unit includes a second resonance coil that has a plurality of unit coils and performs at least one of transmission and reception of electric power to and from a first resonance coil spaced apart from the second resonance coil via electromagnetic resonance with the first resonance coil. The directions of magnetic fields formed by the unit coils are the same.
13 Citations
12 Claims
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1. A coil unit comprising:
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a second self-resonant coil formed of a conducting wire, the coil includes a plurality of unit coils that are disposed not to overlap each other when viewed along an axial direction of each unit coil, and a number of turns of each of the unit coils is set to one, and the coil performs at least one of transmission and reception of electric power to and from a first self-resonant coil spaced apart from the second self-resonant coil via electromagnetic resonance with the first self-resonant coil, wherein directions of magnetic fields formed by the unit coils are the same. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A non-contact power supply system comprising:
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a first coil unit including a first self-resonant coil having a plurality of first unit coils, wherein directions of magnetic fields formed by the first unit coils are the same; and a second coil unit including a second self-resonant coil formed of a conducting wire, the coil having a plurality of second unit coils that are disposed not to overlap each other when viewed along an axial direction of each unit coil, and a number of turns of each of the unit coils is set to one, the second unit coils being configured to perform at least one of transmission and reception of electric power to and from the first self-resonant coil via electromagnetic resonance with the first self-resonant coil, wherein directions of magnetic fields formed by the second unit coils are the same.
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Specification