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.

Temperature dependent regulation of the speed of an electric motor with a microprocessor

Abstract: The speed of an electric motor (9) is regulated by means of a controller (6) that is provided with a setpoint value based on a characteristic function (23). The characteristic function (23) calculates a setpoint value for the controller (6) starting from an originally analog variable (A) that is digitally converted by an A/D converter AD (10), using the interpolation points of a characteristic curve MEM + DATA stored in a memory (4), whereby the values that are not determined by supporting values are calculated by means of interpolation.

Radial fan with an auxiliary electromagnetically protected casing for the control electronics

Abstract: The fan (1) has an impeller (4) that is mounted inside fan housing (2). An electric motor (6) is configured for rotary drive of the impeller. An attachment housing (8) is provided with motor control electronics. The attachment housing is provided with a metal. A metallic cover is configured to cover the motor control electronics to shield from electromagnetic radiation of electric motor. The motor control electronics is connected to a pre-assembled module. A thermally conductive layer is arranged between each contact area of the cover and the semiconductor component.

Blower arrangement with flow dividing nozzle

Abstract: A blower arrangement comprising an impeller, which has an axial intake opening formed by a cover plate covering impeller blades at least in sections, by an intake nozzle connected upstream of the impeller, which extends at least in sections into an overlap section in the intake opening of the impeller, wherein a circumferential nozzle gap is formed between the intake nozzle and the cover plate of the impeller, an outer nozzle, which is arranged spaced apart in the radial direction in relation to the impeller and the intake nozzle and enclosing them in the circumferential direction. A first circumferential radial gap is provided between the outer nozzle and the intake nozzle, which forms an inlet nozzle duct extending in the flow direction. A second circumferential radial gap is provided between the outer nozzle and the cover plate of the impeller, which forms a gap duct extending in the flow direction.

Stator having adapted tooth geometry with teeth having circumferential projections

Abstract: The invention relates to a stator of an electric motor, having teeth distributed in the circumferential direction and extending in the radial direction and grooves respectively provided between the teeth, wherein respectively adjacent teeth each form a groove opening at the radial outer edge sections of said teeth, and the radial outer edge sections of the teeth each have a projection extending into the groove opening in the circumferential direction and each forming a free contact surface directed radially inward.