Pick-up apparatus for inductive power transfer systems
First Claim
Patent Images
1. An Inductive Power Transfer (IPT) pick-up apparatus comprising:
- a magnetically permeable core;
a first coil, being wound about the core so as to be inductive coupled therewith such that a current induced in the first coil is most sensitive to a first directional component of magnetic flux; and
a second coil, being wound about the core so as to be inductively coupled therewith such that a current induced in the second coil is most sensitive to a second directional component of magnetic flux;
wherein the first directional component is substantially orthogonal to the second directional component.
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Abstract
An Inductive Power Transfer (IPT) pick-up apparatus includes a magnetically permeable core, a first coil, being wound about the core so as to be inductive coupled therewith such that a current induced in the first coil is most sensitive to a first directional component of magnetic flux and a second coil, being wound about the core so as to be inductively coupled therewith such that a current induced in the second coil is most sensitive to a second directional component of magnetic flux. The first directional component is substantially orthogonal to the second directional component.
18 Citations
14 Claims
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1. An Inductive Power Transfer (IPT) pick-up apparatus comprising:
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a magnetically permeable core; a first coil, being wound about the core so as to be inductive coupled therewith such that a current induced in the first coil is most sensitive to a first directional component of magnetic flux; and a second coil, being wound about the core so as to be inductively coupled therewith such that a current induced in the second coil is most sensitive to a second directional component of magnetic flux; wherein the first directional component is substantially orthogonal to the second directional component. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. An Inductive Power Transfer (IPT) pick-up apparatus comprising:
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a magnetically permeable E-shaped core having at least three substantially parallel legs and connection regions connecting adjacent legs to each other, the connection regions having an axis which is orthogonal to the axes of the legs; a first set of part-coils and a second set of part-coils each wound about the core so as to be inductively coupled therewith, the first set being arranged such that the current induced therein is most sensitive to a directional component of magnetic flux substantially parallel to the axes of the legs, and the second set being arranged to be sensitive to a directional component of magnetic flux substantially parallel to the axis of the connection portions. - View Dependent Claims (11, 12)
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13. An Inductive Power Transfer (IPT) pick-up apparatus comprising:
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a magnetically permeable core; a first coil, being wound about the core so as to be inductive coupled therewith such that a current induced in the first coil is most sensitive to a first directional component of magnetic flux; a second coil, being wound about the core so as to be inductively coupled therewith such that a current induced in the second coil is most sensitive to a second directional component of magnetic flux; and a track having one or more primary conductors, the one or more primary conductors being capable of providing the magnetic flux; wherein the first directional component is substantially orthogonal to the second directional component.
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14. An Inductive Power Transfer (IPT) pick-up apparatus comprising:
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a magnetically permeable E-shaped core having at least three substantially parallel legs and connection regions connecting adjacent legs to each other, the connection regions having an axis which is orthogonal to the axes of the legs; a first set of part-coils and a second set of part-coils each wound about the core so as to be inductively coupled therewith, the first set being arranged such that the current induced therein is most sensitive to a directional component of magnetic flux substantially parallel to the axes of the legs, and the second set being arranged to be sensitive to a directional component of magnetic flux substantially parallel to the axis of the connection portions; and a track having one or more primary conductors, the one or more primary conductors being capable of providing the magnetic flux.
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Specification