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.

Method and device for commutating an electronic commutated motor

Abstract: The method involves determining a value of a current of an electronically commutated motor (120), after a change of rotor position signals, which are assigned to a pole change. A new commutation is executed after expiration of a preset time period after the pole change. Another value for the current is determined after a change of the signals, which take place on the new commutation. The value for the time period is changed based on the difference between the two values of the motor current to cause adjustment of the values for the motor current during an application of the changed value. An independent claim is also included for an electronically commutated motor with a permanent magnetic rotor.

Comprehensive Experimental Analysis of the IPMSM for Automotive Applications

Abstract: The present paper deals with the in-depth experimental analysis of PMSM considering the motor design solution for an electric assisted active steering system as a case study. The experimental motor and the complete laboratory set-up including the power electronic, motor control and measurement devices are presented. A comprehensive measurement procedure will be described and the measurements results will be presented and interpreted.

Fluid transporting device

Abstract: The inventive fluid transporting device is provided with a rotary fluid pump (91) comprising a pump wheel (90) connected to a fist constant magnet (92). In addition, said device is provided with an electronically switchable internal rotor motor (70) comprising a stator (68) containing the rotor (60) which is mounted therein and is connected to a second constant magnet (76, 140) interacting with the first constant magnet (92) in a magnetic coupling manner. The inventive device also comprises a space cup (52) which divides in a fluid sealed manner the first constant magnet (92) of the magnetic coupling (93) disposed inside said cup (52) from the second constant magnet (76, 140) disposed outside thereof, wherein the stator (68) of the internal rotor motor (70)is placed substantially on the same drive plane as the magnetic coupling (93) and radially outside thereof.

Ventilation Device, In Particular For Heating, Cooling, and/or Humidifying Air In Residential Buildings

Abstract: A ventilation device, in particular for heating, cooling and/or humidifying air in residential buildings, includes a duct-shaped housing ( 1 ) with an air inlet opening ( 2 ) and an air outlet opening ( 3 ), and a fan impeller ( 6 ) as well as a filter unit, heat exchange unit and/or heating coil unit ( 14 ) arranged in the main flow direction (Z) of an air flow generated by the fan impeller ( 6 ). An air guiding device ( 17 ) is arranged in the flow direction (Z) of the air flow in front of a suction nozzle ( 16 )—configured as a flow conditioner, includes a bar structure with air guiding bars-such that a flow inlet opening is configured on the suction side at an axial height in front of the flow inlet opening ( 15 ) by the bar structure whose opening surface is smaller than the opening surface of the flow inlet opening ( 15 ).

Stator for an EC-motor and EC-motor with such a stator

Abstract: A stator for a brushless, electronically commutated electric motor having a stator core wound with stator windings and control electronics for controlling the stator windings. The stator core together with the stator windings are enclosed in a molded encapsulation made of a plastic material of a defined thermal conductivity (λSt). The temperature sensor is arranged on the outside at the encapsulation, and the control electronics are designed such that they calculate the temperature in the region of the stator windings on the basis of the temperature detected by the temperature sensor taking into account a specific stator temperature profile stored in a memory. Furthermore, the invention relates to a brushless, electronically commutated electric motor having a stator as described above.