NON-FERRITE STRUCTURES FOR INDUCTIVE POWER TRANSFER
First Claim
1. Inductive power transfer apparatus suitable for producing a magnetic field for inductive power transfer, the apparatus comprising:
- three or more coils being arranged such that when energized with a power source magnetic fields produced by each coil augment each other at a first surface and substantially weaken each other on a second surface, wherein the first and second surfaces have an obverse relationship to each other.
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Accused Products
Abstract
An inductive power transfer apparatus suitable for producing a magnetic field for inductive power transfer is disclosed. The apparatus has three or more coils arranged such that when energised with a power source, magnetic fields produced by each coil augment each other on a first surface and substantially weaken each other on a second surface. The first and second surfaces have an obverse relationship to each other. Also disclosed is a roadway inductive power transfer module suitable for producing a magnetic field for inductive power transfer to a vehicle using the roadway, and an Inductive power transfer apparatus suitable for receiving a magnetic field for inductive power transfer.
9 Citations
35 Claims
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1. Inductive power transfer apparatus suitable for producing a magnetic field for inductive power transfer, the apparatus comprising:
three or more coils being arranged such that when energized with a power source magnetic fields produced by each coil augment each other at a first surface and substantially weaken each other on a second surface, wherein the first and second surfaces have an obverse relationship to each other. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 33)
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24. Inductive power transfer apparatus suitable for providing a magnetic field for inductive power transfer, the apparatus comprising:
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a pair of first coil-sections separated about a first axis and arranged to produce a magnetic field in a direction nominally parallel to the first axis; and one or more second coil-sections arranged to produce a magnetic field extending perpendicular to the first axis and aligned relative to the first coil-sections such that the fields augment to provide a magnetic field at one end of the axis and cancel each other at the other end of the axis.
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- 25. A roadway inductive power transfer module suitable for producing a magnetic field for inductive power transfer to a vehicle using the roadway, the module comprising a road surface side and a road foundation side which is substantially opposite to the road surface side, a central coil, a first end coil adjacent to one end of the central coil and a second end coil adjacent to the other end of the central coil, the coils being arranged such that when energized with a power source magnetic fields produced by each coil augment each other on the road surface side and substantially cancel each other on the road foundation side.
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29. Inductive power transfer apparatus suitable for receiving a magnetic field for inductive power transfer, the apparatus comprising:
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a first surface and a second surface in obverse relationship to each other; and three or more coils being arranged such that when energized with a power source magnetic fields produced by each coil augment each other on the first surface and substantially weaken each other on the second surface. - View Dependent Claims (30, 31)
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32. (canceled)
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34. (canceled)
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35. (canceled)
Specification