Zf Friedrichshafen Ag

Martin Jelinewski

David Wörzler

Eckhardt Lübke

Rayk Gersten

Stefan Spühler

Andreas Hölscher

Timo Wehlen

Stephan Scharr

Manfred Till

Martin Christians

Timo Hele

Wolfgang Rieger

Kai Bornträger

Johannes Glückler

Michael Roske

Ulrich Kehr

Karlheinz Hoher

Sabine Sielemann

Wolfgang Hübler

Alexander Baur

Danny Grusser

Mathias Döring

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 stator () for an electric machine () includes a laminated core () arranged axially between a first end plate () and a second end plate (). A cooling line () for introducing a coolant into at least one distribution duct () at the particular end plate () is arranged outside the end plates () and the stator () and is fluidically connected to the at least one distribution duct () in the particular end plate (). The laminated core () includes multiple axial ducts () for guiding the coolant through the stator (). The axial ducts () are fluidically connected to the at least one distribution duct () in the particular end plate () for the inflow of the coolant. An outflow for the coolant is formed by at least one end-face opening () in the particular end plate (). The at least one opening () is configured for spraying the coolant out of the axial ducts () onto winding overhangs () of the stator ().

Stator for an electrical machine

An electric machine includes a housing, a stator, a rotor arranged radially within the stator, and a plastic body fixing the stator relative to the housing. The plastic body is electrically insulating. Further, the plastic body radially surrounds an outside of at least one soft magnetic core of the stator and first and second winding overhangs of the stator, and axially surrounds an end face of the first winding overhangs and an end face of the second winding overhangs. Additionally, the plastic body defines at least one channel for accommodating a coolant, the at least one channel having a first portion extending circumferentially along at least 40% of the end face of the first winding overhangs, a second portion extending along an outer circumferential surface of the stator, and a third portion extending circumferentially along at least 40% of the end face of the second winding overhangs.

Electric machine having a plastic body

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

A stator (1a, 1 b) for an electric machine. The stator (,) is fixedly mounted relative to a rotational axis (Rot). The stator () comprises a stator yoke () that extends in the axial (A) and radial (R) directions. Stator teeth (), facing toward the rotational axis (Rot), are arranged in a ring shape on the stator yoke (). The teeth are uniformly spaced apart from one another so that a stator groove () is formed therebetween. The stator (,) is divided into a first stator section () and a second stator section (). First and second outer walls () are provided on the stator yoke () and serve to axially support the stator yoke (). A cooling manifold disk () is integrated between the first stator section () and the second stator section (). An electric machine with a stator of that type is also disclosed.

Stator for an electric motor and an electric motor

A device () for cooling and lubricating components of a vehicle () may include a housing (), a coolant sump (), a coolant pump () for pumping coolant () from the coolant sump (), a heat exchanger () for cooling coolant () from the coolant pump (), and a coolant line system () including a coolant reservoir () having a single coolant inlet () and multiple coolant outlets (). The coolant line system () fluidically connects the coolant pump () to the heat exchanger (), and the heat exchanger () to the single coolant inlet () of the coolant reservoir (). The coolant reservoir () receives coolant () from the heat exchanger () via the single coolant inlet () and directs coolant () via the multiple coolant outlets () onto components in the housing () requiring cooling and lubrication.

Device for cooling and lubricating components of a vehicle and drive device having a device of this type

Growing community of inventors

Nonnenhorn, Germany

Martin Jelinewski