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 provided between a first surface and a second surface, and being arranged such that when energized with a power source magnetic fields produced by each coil augment each other at the first surface and substantially weaken each other at the second surface relative to the first 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 energized 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.
6 Citations
32 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 provided between a first surface and a second surface, and being arranged such that when energized with a power source magnetic fields produced by each coil augment each other at the first surface and substantially weaken each other at the second surface relative to the first 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)
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23. 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 substantially parallel to the first axis; and one or more second coil-sections arranged to produce a magnetic field extending substantially perpendicular to the first axis and aligned relative to the first coil-sections such that the fields diminish each other at a first end of the first axis. - View Dependent Claims (24)
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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 diminish each other on the road foundation side.
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30. 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 provided between the first and second surfaces, and 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 relative to the first surface. - View Dependent Claims (31, 32)
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Specification