Patent ID: 9071061
Filing Date: 2015-06-30
Classification: B60L,H01F,H02J,H04B,Y02T

Abstract:
1. A magnetic flux pad for loosely coupled inductive power transfer, the pad having a front face and a back face for generating or receiving magnetic flux in or from a space beyond the front face, the pad comprising: two pole areas, a magnetically permeable material, two coils magnetically associated with the magnetically permeable material and each coil defining one of the pole areas, wherein the magnetically permeable material concentrates magnetic flux in the pad between the pole areas whereby magnetic flux is constrained in the permeable material between the pole areas and is guided into and out of the pad via the pole areas to form an arch shaped flux path in the space beyond the front face to transfer power to devices at various distances within the space beyond the front face of the pad.