Patent · US Active

Method for production of a stator and stator produced according thereto

US7926164B2 · kind B2 · utility

2Cited by

19References

19Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Eberhard Rau · Ditzingen, DE
Thomas Berger · Ditzingen, DE
Martin Henne · Heubach, DE
Klaus Pflueger · Eberdingen, DE

Key dates

Filing date	Oct 21, 2004
Grant date	Apr 19, 2011
Priority date	—
Expiry date	Jan 24, 2027

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T29/49009
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A method for manufacturing a stator core (20) for an electric machine, in which a plurality of strip-shaped laminations (21) are first stacked to form an essentially block-shaped lamellas packet (40) that is then shaped into an annular form by means of roller bending in one of the subsequent steps so that the outer teeth are provided on the outer circumference of the lamination packets and has an axial direction (a) that corresponds to a cylinder axis (z), the annular form having axial end surfaces (46), wherein in another of the subsequent steps, the annular lamination packet (40) is plastically deformed in the axial direction (a) only on the outer teeth (70) of the axial end surfaces (46).

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