Rotor for an electric machine having a radial cooling duct in the laminated core

US12374945B2 · kind B2 · utility

Assignee

• Valeo eAutomotive Germany GmbH · DE

Inventors

• Carsten SIEPKER · Bad Neustadt an der Saale, DE
• Christoph Wieczorek · Bad Neustadt an der Saale, DE
• Regina Bach · Bad Neustadt an der Saale, DE
• Nico Wolf · Trusetal, DE
• Alexander SCHLERETH · Bad Neustadt an der Saale, DE

Key dates

• Filing date: Dec 1, 2022
• Grant date: Jul 29, 2025
• Expiry date: Jul 30, 2043

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B60L2220/14
• WIPO field: Electrical machinery, apparatus, energy
• WIPO sector: Electrical engineering

Abstract

A rotor for an electric machine is disclosed. The rotor has a rotor shaft, a laminated core arranged on the rotor shaft and a plurality of stacked electrical laminations. The rotor also includes a first end plate arranged on an axial side of the laminated core and having radial protrusions arranged along its circumference, a second end plate arranged on the opposite axial side of the laminated core and having radial protrusions arranged along its circumference, a plurality of rotor windings which are each wound around a protrusion of the first end plate and around an axially opposite protrusion of the second end plate. A central cooling duct runs in the rotor shaft for supplying a coolant, and a radial cooling duct runs outwards from the central cooling duct in the laminated core. In addition, an electric machine and a vehicle having an electric machine of this type are described.