Patent · US Active

Electrical machine having plastic-sheathed pole teeth, and a corresponding method

US8115347B2 · kind B2 · utility

0Cited by

6References

6Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Mark Freudenberg · Cedar Falls, US
Markus Jakobi · Fürstenfeldbruck, DE
Josef Maidl · Wallerfing, DE
Michael Menhart · Igling, DE

Key dates

Filing date	Jan 31, 2007
Grant date	Feb 14, 2012
Priority date	—
Expiry date	Jan 31, 2027

Classification

Technology area (CPC H)Electricity
CPC primaryH02K1/223
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

The production effort for electrical machines with pole teeth which are fitted with permanent magnets is intended to be reduced. A permanent magnet is inserted between two pole teeth halves (1, 2) for this purpose. The two halves (1, 2) are connected to one another with an interlock by means of a plastic sheath (4). The plastic sheath (4) results in a dimensionally stable pocket (3), in which the permanent magnet can subsequently be inserted. It is therefore possible to insert the permanent magnet as late as possible during the manufacturing process, thus reducing the overall production effort.

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