Dr. Ing. H.c. F. Porsche Aktiengesellschaft

Niklas Lamparsky

Peter Wurster

Stefan Oechslen

Karl Dums

Florian Braunbeck

Tobias Schmack

A joining tool () is provided for pressing a disk () to a shaft () that has opposite first and second ends. The first end () of the shaft () is received in a press table () and the second end () of the shaft () is received in a centering receptacle (). A press plate () axially presses the disk () onto the shaft (). A resilient ram () is provided on a side of the press plate () that faces toward the disk () and compensates for an axial run-out of the disk () relative to the press plate (). The resilient ram () of the joining tool () enables the disk () that has an axial run-out to be pressed onto the shaft () in a correspondingly sloped manner, with the result that a rotor shaft () with a satisfactory bond is made possible.

Joining tool for pressing a disk to a shaft, and rotor shaft for an electric machine

A laminated core () is provided for a stator or rotor of an electric machine. The laminated core () is formed from multiple laminations () that are stacked one on top of another in an axial direction () to form a lamination stack (). A through-opening () is formed in the lamination stack () and extends parallel to the axial direction (). A tie rod () of plastic is introduced, in particular injection molded, in the through-opening () to assemble the laminated core ().

Laminated core and method for producing a laminated core

A rotor () for an electric machine has a sheet stack () arranged between a first end plate () and a second end plate (). The first end plate and the second end plate () are connected to each other by pipes () that extend at least partially through the sheet stack (). Each pipe () has a cooling channel () for conducting a coolant. The pipes () and the first end plate () are constructed as an integral pipe/end plate ().

Growing community of inventors

Leonberg, Germany

Niklas Lamparsky