Patent · US Active

Inductive systems for non-contact transmission of electrical energy

US8129865B2 · kind B2 · utility

22Cited by

5References

20Claims

0Family size

Assignee

SCHLEIFRING UND APPARATEBAU GMBH · DE

Inventors

Nils Krumme · Feldafing, DE
Georg Lohr · Eichenau, DE
Herbert Weithmann · Munich, DE
Michael Bley · Minneapolis, US

Key dates

Filing date	May 5, 2009
Grant date	Mar 6, 2012
Priority date	—
Expiry date	Feb 8, 2030

Classification

Technology area (CPC H)Electricity
CPC primaryH02J2310/23
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

An inductive rotary joint for non-contact transmission of electrical energy between a stationary part and a rotating part of the rotary joint comprises a power generator for generating an alternating voltage or an alternating current, which feeds a load by means of a rotatable power transmitter. An electrical parameter on the primary side of the power transmitter is determined with a measurement means, and from this, the condition of another electrical parameter at the load is approximated by means of a functional unit. Regulation of the power generator is effected with this approximated value.

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