Patent · US Active

System and method for reducing leakage flux in wireless electric vehicle charging systems

US9889754B2 · kind B2 · utility

2Cited by

5References

39Claims

0Family size

Assignee

QUALCOMM Incorporated · US

Inventors

Leandro Percebon · Munich, DE
Michael Werner · Marloffstein, DE
Daniel Kuerschner · Grasbrunn, DE
Wojciech Chlebosz · Taufkirchen, DE

Key dates

Filing date	Sep 9, 2014
Grant date	Feb 13, 2018
Priority date	—
Expiry date	Nov 21, 2035

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY04S30/12
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A method and apparatus for reducing leakage magnetic flux in wireless vehicle charging systems are disclosed. A wireless power receiver may be configured to couple to a wireless field generated by a wireless power transmitter. A portion of the wireless field may comprise the leakage magnetic flux. A leakage collector comprising a ferromagnetic material may be positioned at a distance from the wireless power receiver within the wireless field and may be configured to absorb or redirect at least a portion of the leakage magnetic flux away from an outer edge of an electric vehicle.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.