Robert Boschgmbh

Tobias Rothfuss

Andreas Schiel

Juergen Munz

Michael Hermann

Detlef Prahl

Zsolt Dudas

Siegmar Schoser

Joerg Brandes

Michael Maelzer

Tamas Banky

In an electronically commutated DC motor having a stator unit () and a rotor unit () which is in the form of an external rotor, and having stationary sintered bearings (), the invention proposes that the rotor unit () is conductively connected to the shaft () in order to connect a conductive shielding, which is formed on the rotor unit (), to a defined electrical potential, and that the sintered bearing () is conductively connected to the potential, so that the shielding of the rotor unit () is capacitively coupled to the potential by means of the electrically insulating, oil-filled bearing gap which is arranged between the shaft () and the sintered bearing (). Therefore, a sliding contact is not required.

Electronically commutated DC motor with shielding

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Buehl, Germany

Tobias Rothfuss