Patent · US Active

Electric machine comprising a screened leakage-field-sensitive sensor

US7808132B2 · kind B2 · utility

0Cited by

3References

7Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Markus Knorr · Augsburg, DE
Georg Schlatterer · Zahling, DE
Dominik Schury · Birkenfeld, DE

Key dates

Filing date	Feb 1, 2007
Grant date	Oct 5, 2010
Priority date	—
Expiry date	Feb 2, 2027

Classification

Technology area (CPC H)Electricity
CPC primaryH02K11/0141
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

The aim of the invention is to improve the precision of measuring leakage field sensitive sensors on electric machines. According to the invention, the electric machine comprises a sensor device (4) which is sensitive to magnetic leakage fields mounted on one of the two active parts (1) or in a defined relative position in relation to the active parts. A magnetic screening device is arranged between the sensor device (4) and one of the two active parts (1). Also, the magnetic leakage fields no longer have an influence on the sensor device such that measuring precision is increased.

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