Ebm-papst St. Georgen Gmbh & Co Kg

Armin Fleig

Wolfgang Laufer

Siegfried Seidler

Walter Georg Angelis

Norbert Weisser

Tobias Maier

Martin Müller

Gunter Langeneck

Alexander Jordan

Christian Thren

A blocking device () for a fan that blocks a direction of rotation of a rotor (), via which a wheel of the fan can be driven. The blocking device has a bearing tube (), a rotor shaft () and a freewheel sleeve (). The freewheel sleeve () is accommodated in the bearing tube () and is connected to the rotor shaft (), which extends through the freewheel sleeve (), for conjoint rotation. The freewheel sleeve () blocks rotation of the rotor shaft () at least in relation to the bearing tube () in the direction of rotation of the rotor.

Blocking device of a fan

An equipment fan has a housing () that externally defines an air passage opening () provided in the fan (). The fan has a motor () for rotatably driving blades () about a rotation axis (), as well as a carrier element (), provided between the motor () and the housing (), which extends transversely to the passage () and is configured as a trough () that serves to receive an electrical lead () and guides the lead along a predetermined path from the motor () to a location () on the housing (). The fan also has a deflection device () which, by deflecting the lead () at a first deflection location () and at a second deflection location () and in at least two planes extending at a predetermined angle with respect to one another, effects strain relief for the lead () that proceeds to the motor ().

Fan housing with strain relief

Cooling unit

Growing community of inventors

St. Georgen, Germany

Armin Fleig