Transcutaneous power transmission utilizing non-planar resonators
First Claim
Patent Images
1. A system for omni-orientational wireless energy transfer comprising:
- a transmitter unit comprising a first electromagnetic resonator with a first winding configured to be coupled to a power supply and to generate a magnetic flux; and
a receiver unit comprising a second electromagnetic resonator located at an operating distance from the first electromagnetic resonator and having a second winding configured to be coupled to a device load and to carry an electrical current;
wherein at least one of the first or second electromagnetic resonators comprises a respective winding that conforms to a non-planar two-dimensional surface with at least one curved portion occupying three spatial dimensions such that the magnetic flux is directed from the first electromagnetic resonator to the second electromagnetic resonator to induce the electrical current when the first and second electromagnetic resonators are at the operating distance regardless of a relative spatial orientation of the first and second electromagnetic resonators, and wherein a shape of the non-planar two-dimensional surface is configured to shape the magnetic flux to increase a coupling between the electromagnetic resonators over different orientations of the electromagnetic resonators.
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Abstract
A system for omni-orientational wireless energy transfer is described. A transmitter unit has a transmitter resonator with a coil that is configured to be coupled to a power supply to wirelessly transmit power to a receiver unit. A receiver unit has a receiver resonator with a coil coupled to a device load. At least one of the resonators is a non-planar resonator that spans a non-degenerate two-dimensional surface having at least one concave portion.
153 Citations
64 Claims
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1. A system for omni-orientational wireless energy transfer comprising:
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a transmitter unit comprising a first electromagnetic resonator with a first winding configured to be coupled to a power supply and to generate a magnetic flux; and a receiver unit comprising a second electromagnetic resonator located at an operating distance from the first electromagnetic resonator and having a second winding configured to be coupled to a device load and to carry an electrical current; wherein at least one of the first or second electromagnetic resonators comprises a respective winding that conforms to a non-planar two-dimensional surface with at least one curved portion occupying three spatial dimensions such that the magnetic flux is directed from the first electromagnetic resonator to the second electromagnetic resonator to induce the electrical current when the first and second electromagnetic resonators are at the operating distance regardless of a relative spatial orientation of the first and second electromagnetic resonators, and wherein a shape of the non-planar two-dimensional surface is configured to shape the magnetic flux to increase a coupling between the electromagnetic resonators over different orientations of the electromagnetic resonators. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 59, 61)
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20. A method for omni-orientational wireless energy transfer, the method comprising:
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generating a magnetic flux by a first electromagnetic resonator having a first winding coupled to a power supply; and placing a second electromagnetic resonator at an operating distance from the first electromagnetic resonator to induce an electrical current in a second winding of the second electromagnetic resonator, the second winding coupled to an electrical load; wherein at least one of the first or second electromagnetic resonators comprises a respective winding that conforms to a non-planar two-dimensional surface with at least one curved portion occupying three spatial dimensions such that the magnetic flux is directed from the first electromagnetic resonator to the second electromagnetic resonator to induce the electrical current when the first and second electromagnetic resonators are at the operating distance regardless of a relative spatial orientation of the first and second electromagnetic resonators, and wherein a shape of the non-planar two-dimensional surface is configured to shape the magnetic flux to increase a coupling between the electromagnetic resonators over different orientations of the electromagnetic resonators. - View Dependent Claims (21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 60, 62)
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34. A transmitter unit for use in an omni-orientational wireless energy transfer system to wirelessly transfer energy to a receiver unit, the transmitter unit comprising:
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a non-planar electromagnetic resonator with a transmitter winding that conforms to a non-planar two-dimensional surface with at least one curved portion occupying three spatial dimensions to direct a magnetic flux over an operating distance towards a receiver unit, wherein the magnetic flux induces an electrical current in a receiving winding of the receiver unit when the non-planar electromagnetic resonator and the receiving winding are at the operating distance regardless of a relative spatial orientation of the non-planar electromagnetic resonator and the receiving winding, and wherein a shape of the non-planar two-dimensional surface is configured to shape the magnetic flux to increase a coupling between the non-planar electromagnetic resonator and the receiver unit over different orientations of the non-planar electromagnetic resonator and the receiver unit; and a power circuitry coupled to the transmitter winding, wherein the power circuitry is configured to be electrically connected to a power supply source to generate the magnetic flux. - View Dependent Claims (35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 63)
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47. A receiver unit for use in an omni-orientational wireless energy transfer system to receive wirelessly transferred energy from a transmitter unit, the receiver unit comprising:
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a non-planar electromagnetic resonator with a winding that conforms to a non-planar two-dimensional surface with at least one curved portion to receive a magnetic flux from a transmitter unit over an operating distance, wherein the magnetic flux induces an electrical current in the winding when the non-planar electromagnetic resonator and the transmitter unit are at the operating distance regardless of a relative spatial orientation of the non-planar electromagnetic resonator and the transmitter unit, and wherein a shape of the non-planar two-dimensional surface is configured to shape the magnetic flux to increase a coupling between the non-planar electromagnetic resonator and the transmitter unit over different orientations of the non-planar electromagnetic resonator and the transmitter unit; and an electrical load coupled to the winding to receive the electrical current from the winding. - View Dependent Claims (48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 64)
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Specification