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.

Analysis and practical relevance of CM/DM EMI noise separator characteristics

Abstract: This work investigates sources of measurement errors that result for common mode/differential mode (CM/DM) separators in a practical measurement environment, with a particular focus on the recently ...

Stator having a switch disc

Abstract: The present invention relates to a stator arrangement for an electric motor, particularly an external rotor motor (1), comprised of a stator (6) having stator windings (8) and a switch disc (10), having conductor tracks (12), which is disposed perpendicular to the motor axis at the stator (6). These contact the winding ends (24) of the stator winding (8), and can be connected to a connecting line (65). Cutting/clamping contacts (22) connect the winding ends (24) of the stator windings (8) to the contact sections of the conductor tracks (12) disposed on the switch disc (10) on the winding side. Further, the present invention comprises a switch disc (10) for an electric motor having a stator (6) and stator windings (8), as well as a stator (6) for the electric motor, particularly for an external rotor motor (1).

Method and assembly for balancing a fan

Abstract: Disclosed is a method for balancing a fan by means of a controllable laser which is disposed outside the fan and is configured so as to generate a laser beam (12', 12', 12''). The fan comprises a housing and a rotor (22) which is rotatably mounted therein and is embodied at least in one subarea of the rotor from a material that can be machined by the laser beam (12', 12', 12''). At least one subarea of the fan housing is configured so as to allow the subarea of the rotor to be machined by means of a laser beam (12', 12', 12'') which is emitted by the laser and extends through the subarea of the housing to the subarea of the rotor. The inventive method encompasses the following steps: A) the rotor of the fan is made to rotate (S750), and the unbalance created by the fan is measured in order to determine at least one machining point in the subarea of the rotor for reducing the unbalance (S760); B) the laser is triggered so as to generate a laser beam (12', 12', 12'') such that the same penetrates the subarea of the rotor approximately at the at least one machining point (92) in order to remove material there (S780).

Active cooling of a motor

Abstract: The invention relates to a motor, comprising an electronics housing (1), a stator having a stator bushing (3), and a rotor (5). The motor can be fastened to a fastening wall (11) by means of the stator bushing (3). The motor according to the invention has an air conducting element and an air conveying element (14). The air conveying element is connected to the rotor (5) in a rotationally fixed manner. The air conducting element (22a) surrounds the stator bushing (3) and forms a flow space (35) between the air conducting element (22a) and an outer circumference of the stator bushing (3). The flow space (35) is open on the side of the electronics housing (1) in the direction of the fastening wall (11) through at least one flow gap (27). The air conducting element (14) opens with an intake opening (16) via a sealing gap in a rotor-side throughflow opening (26) of the air conducting element.

Gas regulating unit of modular construction and gas regulating valve

Abstract: The invention relates to a gas regulating unit (100) of modular construction, in particular for regulating the amount of gas to be supplied to a gas burner, and to a gas regulating valve (1) which, as a whole, is in the form of a module and which can be used in an aforementioned gas regulating unit of modular construction.