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US 12,592,588 B2Granted
Wireless power transfer coupler
AssigneeAuckland Uniservices Limited
InventorsDuleepa Jayanath Thrimawithana, Grant Anthony Covic, Seho Kim, Osama Abdulameer Ali Ahmed Ali Almulla
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Abstract
A multiphase wireless power transfer pad has at least a first coil and a second coil and permeable material which includes a region of reduced magnetic permeability configured to minimise coupling between the first and second coils.
Claims19
A multiphase wireless power pad comprising:
- first and second coils arranged in a first coil layer at a coil side of a guidance layer;
- a third coil arranged in a second coil layer at the coil side of the guidance layer, and overlapping the first and second coils to decouple therefrom;
- a first magnetically permeable portion arranged in the guidance layer and magnetically associated with the first and third coils;
- a second magnetically permeable portion arranged in the guidance layer and magnetically associated with the second and third coils;
- and
- a magnetically reluctant portion arranged intermediate the first and second magnetically permeable portions to decouple the first and second coils from each other.
3 more elements
A multiphase wireless power pad comprising:
- first and second coils arranged in a coil layer;
- first and second magnetically permeable portions arranged in a guidance layer and magnetically and respectively associated with the first and second coils;
- and
- a magnetically reluctant portion arranged intermediate the first and second magnetically permeable portions to decouple the first and second coils from each other, and being greater in width than a gap between the first and second coils.
1 more element
Dependencies are inferred from the claim text.