Current distribution and thermal regulation in inductive power transfer coupling structures
AssigneeAuckland Uniservices Limited
InventorsJohn Talbot Boys, Grant Anthony Covic, Michael John Neath, Adeel Zaheer, Hui Zhi Beh
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Abstract
A magnetic structure for wireless power transfer has a plurality of pieces of magnetically permeable material arranged along a first dimension. Each piece is separated from a neighbouring piece by a gap defining a separation distance which is selected to prevent partial saturation of a region of the structure.
Claims21
A magnetic structure for a magnetic flux coupling apparatus, the structure comprising:
- a plurality of pieces of magnetically permeable material arranged along a first dimension, each piece being separated from a neighbouring piece by a gap defining a separation distance,
- wherein the separation distance is selected to prevent partial saturation of a selected region of the structure.
The magnetic structure as claimed in 12 wherein the conductor, or a plurality of turns of the conductor, is arranged substantially transverse to the first dimension at the selected region.
A magnetic flux coupling apparatus comprising a mulitfilar winding having one or more turns,
- wherein the filars are physically arranged relative to each other,
- wherein each filar crosses the other filars at a crossing point such that the inductance of each filar is substantially the same.
A magnetic structure for a magnetic flux coupling apparatus, the structure comprising:
- a plurality of lengths of magnetically permeable material arranged substantially in parallel and a heat transfer means provided between at least two of the lengths.
-22. (canceled)
Dependencies are inferred from the claim text.