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AssigneeAuckland Uniservices Limited
InventorsGrant Anthony Covic, Duleepa Jayanath Thrimawithana, Feiyang Lin, Seho Kim, Simon Bickerton, Patrick Alexander John Lawton, Thomas David Allen
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The present invention relates to magnetic structures for wireless power transfers systems. In particular the invention relates to improved magnetic and ferrite layouts as well as pad designs and methods of predicting and preventing thermal failure of high-power ferrite structures. In part it relates to a wireless power transfer pad magnetic structure comprising at least two adjacent blocks are spaced apart by an inter-section spacing configured to reduce circulating flux in the layer. In part it relates to a wireless power transfer pad magnetic structure comprising a first surface configured to locate nearer a wireless power transfer coil than a second surface wherein the relative magnetic permeability of the magnetic structure increases with distance from the first surface. In part it relates to a method of preparing a magnetically permeable block for a wireless power transfer pad, the method comprising: thermally pre-cracking the magnetically permeable block.
A wireless power transfer pad magnetic structure, comprising a first layer having a plurality of magnetically permeable blocks,
A wireless power transfer pad magnetic structure, comprising a first layer having a plurality of magnetically permeable blocks,
A wireless power transfer pad magnetic structure, comprising a first layer having a plurality of magnetically permeable elements,
Dependencies are inferred from the claim text.