Patent · US Active

Insulating unit for an electric machine

US11621599B2 · kind B2 · utility

0Cited by

1References

14Claims

0Family size

Assignee

ZF FRIEDRICHSHAFEN AG · DE

Inventors

Ralf Wittstadt · Grettstadt, DE
Katja Willacker · Wiesentheid, DE
Jochen Wittmann · Burkardroth, DE
Stefan Reuter · Hammelburg, DE
André Grübel · Fürth, DE
Matthias Ebert · Dettelbach, DE

Key dates

Filing date	Feb 20, 2019
Grant date	Apr 4, 2023
Priority date	—
Expiry date	Mar 4, 2039

Classification

Technology area (CPC H)Electricity
CPC primaryH02K15/105
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

An insulating unit for an electric machine with hairpin winding. The hairpin winding has a plurality of connection pins for electrically connecting to an interconnect and a plurality of welded hairpin ends. A base body is provided having an insulating material and extends at least over a portion of the circumference of the hairpin winding. The base body has a receiving area which faces the hairpin winding and which has openings for receiving the hairpin ends. The dividing walls are provided between the openings in circumferential direction, and the openings and/or dividing walls have fasteners for engaging connection to the hairpin ends.

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