Zf Friedrichshafen Ag

Martin Christians

Rayk Gersten

Stefan Spühler

Martin Jelinewski

David Wörzler

Timo Hele

Karlheinz Hoher

Alexander Baur

Wolfgang Hübler

A cooling arrangement for cooling a stator for an electric machine. The cooling arrangement comprising a stator fixedly mounted relative to a rotational axis. The stator comprises a stator yoke and stator grooves. Windings are provided in the stator grooves, which form first and second winding heads. First and second fluid rings are provided at opposite ends on the stator yoke. The first fluid ring has a fluid inflow opening from a stator housing. The stator yoke has a plurality of axial stator ducts extending in the axial direction, which enable the inflowing fluid to flow through from the first fluid ring to the second fluid ring, and the second fluid ring redirects some of the fluid.

Cooling arrangement for cooling a stator for an electric motor

A rotor () for an electric machine () which comprises a rotor support (). The rotor support has cylindrical inner and outer shells (). A magnetic flux-carrying rotor component has first and second end faces () and carries the cylindrical outer shell (). A rotationally shaft section () is arranged in an inside space () of the rotor support and mounted coaxially with the rotor support. At least in the area of the first end face () the outer shell has first teeth which face toward the magnetic flux-carrying rotor component and a first tooth base between respective pairs of first teeth, and at least in the area of the second end face () the outer shell () has second teeth which face toward the magnetic flux-carrying rotor component and a second tooth base between respective pairs of second teeth. The invention also relates to an electric machine.

Rotor and electric motor with such a rotor

Growing community of inventors

Friedrichshafen, Germany

Martin Christians