Audi Ag

Philipp Uhlmann

Albert Scharlach

Michael Schwarzer

Lars Wetterau

Andreas Weber

Patrick Herrmann

Andreas Ruf

Peter Maischak

Martin GERNGROß

Martin Floß

Malte Loeprecht

A pole cover is provided for receiving and guiding a winding on a rotor of an electric motor, comprising multiple segments which extend in a radial direction to a center axis of the pole cover, wherein the segments receive a partial region of the winding of the electric motor, and wherein each of the segments includes a winding region to receive the winding and a segment connection region for connecting to other segments, wherein the winding region and the segment connection region border on each other and the segment connection region is situated closer to the center axis than the winding region. The segment connection regions extend at least partially in the circumferential direction about the center axis and each segment connection region protrudes, in the circumferential direction about the center axis, beyond the adjoining winding region. Multiple decoupling regions are also provided, each being situated between two segment connection regions in the circumferential direction about the center axis. An electric motor having such a pole cover and a method for producing a pole cover are also provided.

Pole cover for an electric motor

A brush holder for holding at least two brushes for a sliding contact arrangement, including an intermediate element and two contact elements for electrically contacting at least one of the brushes, the contact elements being arranged on two opposite sides of the intermediate element and the intermediate element having a receptacle extending through the opposite sides for a rotating shaft.

Brush holder for holding at least two brushes for a sliding contact arrangement, electrical machine and motor vehicle

A star disk for a rotor of an externally excited synchronous machine, having a central disk body, from which multiple webs extend radially, at the ends of which an end plate is provided each time, so that between the disk body and the respective end plate there is formed a winding groove, being bounded by the web forming the groove bottom and laterally by the disk body and the end plate, forming groove flanks, and serving to contain a conductor winding led around the web and formed from a conductor wire which is wound in multiple layers, wherein the web is provided with flutes running in the winding direction and serving to contain a respective conductor wire segment, there being provided at least one additional flute on a groove flank at least on one side of the web.

Star disk for a rotor of an externally excited synchronous machine

An electric machine, including a stator and a rotor shaft having a cooling device, which shaft carries at least one slip ring, which has a lateral surface, which electrically contacts a contact element fixed on the stator, and which is at least partially accommodated in a recess of the rotor shaft, wherein an extension section of the slip ring, which is at least partially accommodated in the recess, extends beyond the lateral surface in one or both axial directions of the rotor shaft.

Electric Machine

A stator for an electric motor, including a stator ring with slots arranged on the inner or the outer circumference, wherein each slot accommodates a plurality of conductors extending along the slot and having a rectangular cross-section, each of which is covered by an insulation layer, wherein to form a channel through which a coolant can flow, the insulation layer of at least one of the conductors has at least one recess extending along the conductor.

Growing community of inventors

Ingolstadt, Germany

Philipp Uhlmann