Patent · US Active

Joining a laminated core to a shaft

US12255496B2 · kind B2 · utility

0Cited by

11References

17Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Klaus Büttner · Hollstadt, DE
Klaus Kirchner · Nidderau, DE
Matthias Warmuth · Windshausen, DE

Key dates

Filing date	Dec 16, 2019
Grant date	Mar 18, 2025
Priority date	—
Expiry date	Apr 20, 2041

Classification

Technology area (CPC H)Electricity
CPC primaryH02K15/028
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A lamination of a rotor of a rotary dynamo-electric machine includes a shaft bore with a radius, at least two pull-through grooves, and two intermediate space recesses. Each of the pull-through grooves has a lamination tongue facing radially inwards towards an axis such that the lamination tongue ends facing radially inwards lie on a radius which is smaller than the radius defined by the shaft bore.

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