Patent · US Active

Stator winding with increased power density

US11502568B2 · kind B2 · utility

1Cited by

14References

18Claims

0Family size

Assignee

ROLLS-ROYCE DEUTSCHLAND LTD & CO KG · DE

Inventors

Michael Frank · Erlangen, DE
Jörn Grundmann · Großenseebach, DE
Markus Wilke · Leverkusen, DE

Key dates

Filing date	Sep 21, 2018
Grant date	Nov 15, 2022
Priority date	—
Expiry date	May 19, 2039

Classification

Technology area (CPC H)Electricity
CPC primaryH02K55/02
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A stator for an electric alternating current machine includes a stator winding arranged about a central axis and including conductor windings. The conductor windings are grouped to form electrical phases. The stator winding has winding layers. The conductor windings of a phase each have axially oriented conductor limbs that are connected to one another in two axial end regions in pairs by two winding heads. Individual coils are thus formed for each phase. As viewed in a circumferential direction, the axial conductor limbs of the individual phases follow one another in alternation in a uniform order. The winding heads of a given individual coil extend within a winding layer. A sequence of the axial conductor limbs of the respective phases and the distribution of the individual coils on the individual winding layers are chosen to avoid crossovers within the individual winding layers in the region of the winding heads.

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