Valeo Siemens Eautomotive Germany Gmbh

Valeo Eautomotive Germany Gmbh

Alexander Schlereth

Carsten Siepker

Christoph Wieczorek

Nico Wolf

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.

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

The invention specifies a rotor () for an electrical machine (), which rotor comprises a rotor shaft (), a rotor laminated core (), which sits on the rotor shaft () with a press fit, a first rotor holder (), which is arranged adjacent to the rotor laminated core () on a first side thereof, and a second rotor holder (), which is arranged adjacent to the rotor laminated core () on a second, opposite side thereof. Furthermore, the rotor comprises a first shaft securing ring (), which sits in a first groove of the rotor shaft () and axially secures the rotor laminated core (). In addition, the invention specifies an electrical machine comprising a stator () and a rotor () of said type, and a vehicle () with at least two axles, at least one of which is driven. The driving of the vehicle () is performed at least partially or temporarily by the electrical machine () of the abovementioned type.

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Bad Neustadt a.d.Saale, Germany

Alexander Schlereth