Coil constructions for improved inductive energy transfer
First Claim
1. An inductor coil for use in an inductive energy transfer system, comprising:
- a single wire forming multiple layers and having an input end and an output end;
the wire defines multiple windings interlaced within at least two of the multiple layers; and
the input end and the output end of the wire enter and exit the coil on a same side of the coil;
whereina top layer of the multiple layers defines a concave profile corresponding to an interface surface of an electronic device housing.
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Accused Products
Abstract
An inductor coil for an inductive energy transfer system includes multiple layers of a single wire having windings that are interlaced within at least two of the multiple layers such that both an input end and an output end of the wire enter and exit the coil on a same side of the coil. The input end and the output end of the wire may abut one another at the location where the input and output wires enter and exit the inductor coil. The wire can include one or more bundles of strands and the strands in each bundle are twisted around an axis extending along a length of the wire, and when there are at least two bundles, the bundles may be twisted around the axis. At least one edge of the inductor coil can be formed into a variety of shapes, such as in a curved shape.
45 Citations
20 Claims
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1. An inductor coil for use in an inductive energy transfer system, comprising:
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a single wire forming multiple layers and having an input end and an output end; the wire defines multiple windings interlaced within at least two of the multiple layers; and the input end and the output end of the wire enter and exit the coil on a same side of the coil;
whereina top layer of the multiple layers defines a concave profile corresponding to an interface surface of an electronic device housing. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. An inductor coil for use in an inductive energy transfer system of an electronic device, comprising:
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a single wire forming multiple layers and having an input end and an output end;
whereinthe wire defines multiple windings arranged in an interlace pattern; the input end and the output end of the wire enter and exit the coil at substantially one location and abut one another; and a shape of an edge of the inductor coil conforms to a curved interface surface of the electronic device. - View Dependent Claims (10, 11, 12, 13, 14)
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15. An inductor coil comprising:
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a wire forming multiple interlaced windings dispersed among a plurality of layers, the wire comprising an input end and an output end each having a length, wherein; the input end and the output end extend away from the coil at a same side of the coil and abut one another along at least a portion of the lengths of the input end and the output end; and adjacent columns of the inductor coil are offset from one another in a direction parallel to a column axis to form a top layer that defines a concave profile. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification