VARIABLE DIAMETER COIL FOR EFFICIENT INDUCTIVE CHARGING
First Claim
Patent Images
1. A wireless charging coil, comprising:
- first and second loops spaced apart from each other, the first loop formed from a first wire portion having a first wire diameter and the second loop formed from a second wire portion having a second wire diameter greater than the first wire diameter.
2 Assignments
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Accused Products
Abstract
This application relates to inductive charging coil configurations. In particular, the wireless charging coil configurations are arranged in a shape and size suitable for utilizing available space within a device housing. In some embodiments, wires making up the charging coil have varying diameters configured to optimize the size and shape of the charging coil so that available space can be fully utilized.
9 Citations
20 Claims
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1. A wireless charging coil, comprising:
first and second loops spaced apart from each other, the first loop formed from a first wire portion having a first wire diameter and the second loop formed from a second wire portion having a second wire diameter greater than the first wire diameter. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A portable electronic device, comprising:
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a device housing comprising a wall defining a concave recess within the device housing; and a charging coil, comprising a variable diameter electrically conductive conduit arranged in a plurality of loops, an average outer diameter of a first portion of the conduit arranged in a central portion of the concave recess being greater than an average outer diameter of a second portion of the conduit that is arranged in a peripheral portion of the concave recess. - View Dependent Claims (8, 9, 10, 11, 12, 13, 14, 20)
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15. A charging coil, comprising:
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an electrically conductive conduit, comprising; a first wire having a first length, and a second wire having a second length less than the first length, the second wire being electrically coupled with a portion of the first wire disposed in a central portion of the charging coil, wherein the electrically conductive conduit is arranged in a plurality of loops. - View Dependent Claims (16, 17, 18, 19)
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Specification