Patent ID: 8766484
Filing Date: 2014-07-01
Classification: H01F,H02J,H04B

Abstract:
1. A magnetic positioning system for use in an inductive power supply system for wirelessly transferring power from an inductive power supply to a remote device using an electromagnetic field, said magnetic positioning system comprising: a bonded magnet having a first polarity aligned with a first magnetic axis of said bonded magnet, wherein said first polarity and said first magnetic axis of said bonded magnet are substantially perpendicular to a power transfer surface; a second magnet having a second polarity aligned with a second magnetic axis of said second magnet, said second polarity being opposite from said first polarity of said bonded magnet, wherein said second polarity and said second magnetic axis of said second magnet are substantially perpendicular to said power transfer surface; wherein said bonded magnet and said second magnet are located in the electromagnetic field, wherein said bonded magnet and said second magnet are located in at least one of said inductive power supply and said remote device, wherein the other of said inductive power supply and said remote device includes a magnetic element; wherein said bonded magnet is paired with the magnetic element to cooperate with the magnetic element to provide magnetic attraction force for alignment of said inductive power supply and said remote device; and wherein said second magnet is unpaired such that said magnetic positioning system is absent an attraction magnet that complements said second magnet, wherein said second magnet provides a magnetic repulsion force in cooperation with the magnetic element for alignment of said inductive power supply and said remote device, wherein said magnetic attraction force and said magnetic repulsion force cooperate to align said inductive power supply and said remote device such that said first magnetic axis of said bonded magnet and a magnetic axis of said magnetic element are moved into coaxial alignment.