ebm-papst

About: ebm-papst is a company organization based out in Mulfingen, Germany. It is known for research contribution in the topics: Rotor (electric) & Stator. The organization has 572 authors who have published 736 publications receiving 3763 citations.

Multiphase electric motor for various applications has permanent magnets with chamfered edges arranged to form square in rotor to make pole shoes

Abstract: Rotor (36') is made of a large number of laminae stacked together on a central shaft. Each lamina has four slots accommodating permanent magnets (266A-D) arranged to form a square in end view. The outer edges of the magnets are chamfered (264A'-D''). There are empty spaces (266A'-D'') at the edges of the permanent magnets. The parts of the laminae forming the pole shoes (260A-D) lie outside the magnets.

Motor, especially for low voltage

Abstract: A motor, especially for low voltage, comprises rotor and stator with an air gap (180) with projecting stator poles (44-54) having cores and shoes and separated by grooves (61-66) holding U-shaped stator coils on the cores. A U-shaped piece touches the pole cores and has outer insulated guide recesses to stop coils contacting poles or one another. An independent claim is also included for a vehicle having a drive motor as above.

Method for life-cycle monitoring of an electrolyte condenser and device with a monitored electrolyte condenser

Abstract: The method involves detecting impedance of an electrolytic capacitor (C) as an actual characteristic value during operation of electrical device under operation conditions for recognizing an approaching lifetime- and/or life utility end of the electrolytic capacitor. The impedance is compared with maximum impedance (Zmax) predetermined as limit characteristic value. A warning signal is produced depending on parameter of determined difference between the actual characteristic value and the limit characteristic value when reaching a preset minimum permissible difference. An independent claim is also included for an electrical device.

Impeller having balance compensation

Abstract: The invention relates to an impeller (1) for a fan, in particular an axial or radial fan having a hub (2) for connecting the impeller (1) to a drive motor and having fan blades (6) which are arranged circumferentially around the hub (2) and having pockets (9) in the hub region, having balance weights (15) which can be fastened therein, aligned in the axial direction. The balance weights (15) are made of U-shaped, bent weight clips made of spring-elastic material, having at least two opposite clip legs extending parallel to each other which are connected to each other via a bend section, and comprise a clamping gap between the clip legs. One of the clip legs extends within the pockets (9) and the other clip leg extends outside of the pockets (9), such that there is a clamping seat on a pocket wall (12) extending in the clamping gap.

Wandring mit wandringheizung für axiallüfter

Abstract: Die vorliegende Erfindung betrifft einen Wandring fur die Aufnahme insbesondere eines Axiallufters (6), umfassend einen ringformigen Korper (1) mit einer mittleren Langsachse (X-X) und mit einer Stromungseintrittsoffnung (2) und einer Stromungsaustrittsoffnung (3) und insbesondere mit einem elektrischen Heizelement, das am ringformigen Korper (1) mindestens teilumfanglich angeordnet ist. An einer Ausenseite des ringformigen Korpers (1) ist ein Abdeckprofil (9) aus thermisch isolierendem Material zumindest teilumfanglich losbar befestigt, das mit dem ringformigen Korper (1) im Bereich seiner Ringwand (4) einen Aufnahmeraum zur Aufnahme des elektrischen Heizelementes einschliest.