Inductive power transfer system primary track topologies
First Claim
1. A multiphase Inductive Power Transfer (IPT) primary track conductor arrangement comprising phase conductors including a first phase conductor and a second phase conductor, the phase conductors being arranged substantially in a plane and being operable to provide a magnetic field for inductive power transfer on one side of the plane, the phase conductors also being arranged to overlap each other such that there is minimal mutual coupling between the phase conductors, and the arrangement being associated with a magnetically permeable member, the magnetically permeable member being provided on an opposite side of the plane,wherein a forward current path of the first phase conductor and a return current path of the first phase conductor are arranged to produce a first series of alternating pole areas, and a forward current path of the second phase conductor and a return current path of the second phase conductor are arranged to produce a second series of alternating pole areas, and wherein the magnetically permeable member is configured to channel flux between adjacent pole areas.
3 Assignments
0 Petitions
Accused Products
Abstract
A multiphase IPT primary track conductor arrangement comprising a first phase conductor and a second phase conductor, the conductors being arranged substantially in a plane and so as to overlap each other and being arranged such that there is substantially balanced mutual coupling between the phase conductors.
16 Citations
20 Claims
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1. A multiphase Inductive Power Transfer (IPT) primary track conductor arrangement comprising phase conductors including a first phase conductor and a second phase conductor, the phase conductors being arranged substantially in a plane and being operable to provide a magnetic field for inductive power transfer on one side of the plane, the phase conductors also being arranged to overlap each other such that there is minimal mutual coupling between the phase conductors, and the arrangement being associated with a magnetically permeable member, the magnetically permeable member being provided on an opposite side of the plane,
wherein a forward current path of the first phase conductor and a return current path of the first phase conductor are arranged to produce a first series of alternating pole areas, and a forward current path of the second phase conductor and a return current path of the second phase conductor are arranged to produce a second series of alternating pole areas, and wherein the magnetically permeable member is configured to channel flux between adjacent pole areas.
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10. A multiphase Inductive Power Transfer (IPT) primary track conductor arrangement comprising phase conductors including a first phase conductor and a second phase conductor, the phase conductors being arranged substantially in a plane and being operable to provide a magnetic field for inductive power transfer on one side of the plane, the phase conductors also being arranged to overlap each other such that energization of the phase conductors results in minimal energy transfer from one phase conductor to the other phase conductor, and the arrangement being associated with a magnetically permeable member, the magnetically permeable member being provided on an opposite side of the plane,
wherein a forward current path of the first phase conductor and a return current path of the first phase conductor are arranged to produce a first series of alternating pole areas, and a forward current path of the second phase conductor and a return current path of the second phase conductor are arranged to produce a second series of alternating pole areas, and wherein the magnetically permeable member is configured to channel flux between adjacent pole areas.
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14. An inductive power transfer track comprising a plurality of phase conductors arranged in a multiphase topology, wherein the multiphase topology comprising phase conductors including a first phase conductor and a second phase conductor arranged in a plane, wherein a magnetically permeable member is provided on an opposite side of the plane, and wherein the multiphase topology is configured to balance interphase coupling between the phase conductors, and to expose a pick-up, travelling along the track, to flux from both forward and reverse currents,
wherein a forward current path of the first phase conductor and a return current path of the first phase conductor are arranged to produce a first series of alternating pole areas, and a forward current path of the second phase conductor and a return current path of the second phase conductor are arranged to produce a second series of alternating pole areas, and wherein the magnetically permeable member is configured to channel flux between adjacent pole areas.
Specification