Valeo Siemens Eautomotive Germany Gmbh

Valeo Eautomotive Germany Gmbh

Siemens Aktiengesellschaft

Regina Bach

Boris Dotz

Christoph Wieczorek

Carsten Siepker

Florian Volkmuth

Sebastian Beetz

Alexander Schlereth

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

A rotor () comprising a rotor shaft (), a rotor core () having a core length, windings (), and two impregnation rings (), the windings () forming protruding windings ends (), each one of the two impregnation rings () comprising an annular portion () and a deflector portion (), the annular portion () comprising radial openings (); and a method for impregnating the rotor () comprising starting a rotation of the rotor shaft () and impregnating the windings () with an impregnating agent through two nozzles respectively located upward each one of the two impregnation rings () and oriented towards the radial openings (), the impregnation agent being guided by the deflector portion () towards the protruding windings ends () on both sides of the rotor () at a same time, in order to impregnate the windings () through the core length.

Rotor and method of impregnation of the windings

Rotor () for an electrical machine (), having: a rotor core () with a plurality of radially outwardly extending rotor legs (); a number of exciter windings () corresponding to the number of rotor legs (), each wound around one of the rotor legs (); and a pot-like end cap () which covers the end faces of the exciter windings () and has a passage opening () for a shaft (), wherein the exciter windings () and the end cap () delimit intermediate spaces (), in each of which a casting compound () is arranged.

Rotor for an electrical machine, electrical machine for a vehicle, and method for manufacturing a rotor for an electrical machine

Rotor for an electrical machine has a rotor core with a plurality of radially outwardly extending rotor legs, a number of exciter windings corresponding to the number of rotor legs, each wound around one of the rotor legs, and a separating device, having a number of separating portions corresponding to the number of rotor legs, which are arranged between a respective pair of adjacent exciter windings and extend axially between two opposing end faces of the rotor, a first annular connecting portion which connects together the separating portions at one of the end faces, and a second annular connecting portion which connects together the separating portions at the other of the end faces. The separating device is formed by a first part and by a second part which are joined together by means of a form-fit and/or force-fit connection, wherein the first part comprises at least the first connecting portion and at least partially the separating portions, and the second part comprises at least the second connecting portion.

Rotor for an electrical machine, electrical machine for driving a vehicle, and vehicle

Shaft for an electric machine, includes a core seat for a laminated core and two shaft ends extending axially outwardly from the core seat in opposite directions, wherein the core seat has at least one core seat portion extending in the axial direction with a polygonal profile for forming a polygonal connection to the laminated core.

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Hendungen, Germany

Regina Bach