Ebm-papst St. Georgen Gmbh & Co Kg

Rainer Strohm

Arno Karwath

Tobias Maier

Volker Hildebrand

Sabrina Sieber

Juergen Pfaff

Jürgen Pfaff

The invention relates to an antenna arrangement () having an antenna arrangement housing (), in which antenna arrangement housing () there are arranged an antenna (), antenna electronics () for driving the antenna (), and a fan unit () for active cooling of the antenna electronics (), which fan unit () comprises a fan housing () having a plurality of fan unit side surfaces (to), which comprise a first fan unit housing side surface () and a second fan unit side surface (), in which fan unit housing () there are arranged at least two fans (), wherein the fan unit housing () has fluid passage openings () on the first fan unit housing side surface () and on the second fan unit housing side surface () in order to permit a fluid () to flow through the fluid passage openings ().

Antenna arrangement having a fan unit

An electric motor () has a stator () and a rotor (). The latter is equipped with a cup-like rotor part () and with a ring magnet () adhesively bonded therein, which magnet has an outer circumference () on which are provided elevations () and depressions () that extend at least partly in the longitudinal direction of the ring magnet (). The outer circumference () of the ring magnet (), that faces toward the cup-like rotor part () after assembly, is formed with at least one opening or channel (), extending in a circumferential direction, that is connected to at least a plurality of the flat depressions (). Positive mechanical engagement between adhesive and ring magnet enhances durability, and discourages any tendency toward relative rotation between the magnet () and the cup-like rotor part ().

Electric motor with adhesively bonded ring magnet

An equipment fan has a housing () which is configured as a plug-in module for an equipment rack. The housing has a front side () and a back side (), the latter being slid into the equipment rack () first upon installation. For latching into this kind of equipment, the housing () has at least one resiliently deflectable detent member (), which, for its actuation, is associated with a respective actuation member () that is operable from the front side of the housing. Troughs () are located on the front side (), and a respective actuator () for each deflectable member is located in each. The detent member () has pretensioning which urges the detent member away from the housing () so that, when the housing is slid into a piece of equipment, latching of the housing () therein is accomplished.

Growing community of inventors

St. Georgen, Germany

Rainer Strohm