Bar winding arrangement of a stator or a rotor of an electric machine

US10637314B2 · kind B2 · utility

Assignee

• Dr. Ing. h.c. F. Porsche AG · DE

Inventors

• Stefan Götz · Forstern, DE
• Malte Jaensch · Bietigheim-Bissingen, DE

Key dates

• Filing date: Nov 16, 2017
• Grant date: Apr 28, 2020
• Expiry date: Feb 23, 2038

Classification

• Technology area (CPC H): Electricity
• CPC primary: H02K15/021
• WIPO field: Electrical machinery, apparatus, energy
• WIPO sector: Electrical engineering

Abstract

The invention relates to a bar winding arrangement of a stator or a rotor of an electric machine, including a number of bar segments, which are housed in a plurality of slots of the stator or the rotor and are electrically connected to one another in such a way that they form a continuous winding of the stator or the rotor, wherein each of the slots is divided by the bar segments into a first group of bar segments and at least one second group of bar segments, wherein the bar segments of the first group have a smaller cross section than the bar segments of the second group, wherein the bar segments of the first group are electrically connected in series and the bar segments of the second group are electrically connected in series and in parallel with the bar segments of the first group and wherein the bar segments of the first group are arranged closer to a slot opening in the radial direction than the bar segments of the second group.