Dynamoelectric machine having cooling of the slip ring system

US12244189B2 · kind B2 · utility

Assignee

• Flender GmbH · DE

Inventors

• Herbert Binder · Hagebök, DE
• Georg Brunner · Munster, DE
• Nicole Devingtel · Fürstenzell, DE
• Daniel Friedl · Fürstenzell, DE
• Thomas Garhammer · Dommershausen, DE
• Robert Gruber · Regensburg, DE
• Lorenz Hraska · Triftern, DE
• Oliver Memminger · Passau, DE
• Günther Ortmeier · Ruhstorf an der Rott, DE
• Matthias Reisinger · Ruhstorf an der Rott, DE
• Klaus Schifferer · Neuhaus am Inn, DE
• Markus Sentef · Ruhstorf, DE

Key dates

• Filing date: Jan 11, 2022
• Grant date: Mar 4, 2025
• Expiry date: Jan 11, 2042

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02E10/72
• WIPO field: Electrical machinery, apparatus, energy
• WIPO sector: Electrical engineering

Abstract

A dynamoelectric machine includes a shaft, a rotor arranged fixedly on the shaft for conjoint rotation, and a slip ring system enabling a rotor winding system to be contacted electrically and including a slip ring body having slip rings arranged spaced-apart axially behind one another and assigned to an electrical phase. The slip ring body is connected fixedly to the shaft for conjoint rotation and has between an inner side thereof and the shaft a section which forms an axially open cavity on both skies. In a region of the slip ring system, the shaft is hollow with a hollow shaft portion assigned to the slip ring system for routing feed lines to the rotor winding system. Recesses are provided on the cavity axially on an inside and axially on an outside for introducing a cooling medium flow axially into the cavity and discharge thereof into an outlet region.