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US 10,410,789 B2Granted
Integrated resonator-shield structures
AssigneeWiTricity Corporation
InventorAndre B. Kurs
Life of this patent
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Abstract
Described herein are configurations for an integrated resonator-shield structure for wireless power transfer. In embodiments a conductor shield is used to shield the resonator from perturbing objects. In embodiments the conductor shield is used for a current return path for the conductors of the resonator. The resonator shield can be divided into separate conductor segments to tailor the current distributions in the conductor shield.
Claims15
A resonator, comprising:
- a member formed of a magnetic material and comprising a first surface, a second surface opposite the first surface, a third surface, and a fourth surface opposite the third surface;
- and
- a resonator coil comprising:
- a first plurality of loops, wherein each loop in the first plurality comprises a first portion adjacent to the first surface that extends in a first plane, and a second portion that extends around the third surface in a second plane that is not coplanar with the first plane;
- and
- a second plurality of loops, wherein each loop in the second plurality comprises a first portion adjacent to the first surface that extends in a third plane, and a second portion that extends around the fourth surface in a fourth plane,
- wherein the first plurality of loops defines a first winding direction relative to an axis extending perpendicular to the first plane, and the second plurality of loops defines a second winding direction different from the first winding direction relative to the axis;
- and
- wherein the first winding direction is clockwise relative to the axis, and the second direction is counterclockwise relative to the axis.
6 more elements
Dependencies are inferred from the claim text.