Ebm-papst Mulfingen Gmbh & Co Kg

Stephan Nadig

Dieter Best

Thomas Sauer

Matthias Maschke

Gerhard Sturm

Sven Beck

Jochen Häfner

Werner Müller

Martin Baun

Erich Pollok

An electric motor (), in particular, an external rotor motor, has a stator () with a stator core (), a non-rotatably attached shaft (), that extends in the axial direction (A) of the motor, and a rotor bell (), rotatably arranged relative to the non-rotatable shaft (). The rotor bell () has cooling ribs in an open, spoke-like design rotatably mounted on the shaft () by at least one first stator-side bearing shield (). A cooling device () is arranged between and connects the shaft () and the stator core (). The cooling device () has a plurality of axial flow openings () arranged in the circumferential direction that causes cooling when the motor rotates during operation.

Electric motor having improved cooling

The invention relates to a ventilator, having an electrical ventilator motor and an electrical connection device for connecting electrical motor lines leading to the motor to external electrical connecting lines. The connection device has a terminal box mounted to a device part comprising electrical contact elements, and has an additional connection part, to which the motor lines are connected. The terminal box is releasably connected to the additional connection part via electrical plug-in connections.

Ventilator having an electrical connection device

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Zweiflingen-Pfahlbach, Germany

Stephan Nadig