Patent · US Active

Method for producing a bar winding for the stator of an electric machine

US8584346B2 · kind B2 · utility

4Cited by

5References

10Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Thomas Berger · Ditzingen, DE
Christoph Schwarzkopf · Walheim, DE

Key dates

Filing date	Apr 10, 2007
Grant date	Nov 19, 2013
Priority date	—
Expiry date	Jul 3, 2029

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T29/49012
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

In a method for manufacturing a bar winding for the stator of an electric machine, in particular of a claw pole alternator for motor vehicles, resistance welding is used to form mechanically and electrically reliable and permanent connections in the winding overhang of the stator even with winding configurations that include four or more superposed conductor segments, and even with the very small amount of working space that remains for the necessary connections, using a minimum of production-related outlay. With a design, in particular, of four radially superposed conductor segments in the winding overhang, particularly advantageous configurations result in terms of the placement of the bar ends and in terms of the design of the welding electrodes.

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