Lenze Drives Gmbh

Lenze Automation Gmbh

Innotec Corporation

Martin Ehlich

Guido Beckmann

Andreas Tolksdorf

Jan Wettlaufer

Manfred Tinebor

Volker Grabs

Torben Jonsky

Karsten Huebner

Peter Wratil

Armin Wedler

Thomas Eutebach

Torsten Wedemeyer

Elmar Hartmann

Karl-Dieter Tieste

Mario Mueller

Abdenbi Maghnaoui

Marc Sommer

Karsten HÜBNER

Mathias STÖWER

Sven Meier

Andreas Röttger

Jan Friedrichs

Bernhard Bock

Peter Langel

Bernd Vater

Thomas Rosenbusch

Tino Götz

A circuit board to be mounted in a non-drive end shield of an electric motor has a converter formed on the circuit board. The circuit board is divided into a central region and a number of toothed regions surrounding the central region, wherein planes of the toothed regions are bent with respect to a plane of the central region in a mounting position.

Non-drive end shield with a circuit board with central region and bent tooth regions

A motor system includes: a stator; a rotor; a motor shaft, which is mechanically coupled for conjoint rotation with the rotor, and which defines a radial direction and an axial direction of the motor system; heat-generating components, in particular power semiconductors; a control device which is designed to control an operation of the motor system; and a housing. The housing has a first central chamber, wherein the stator, the rotor and the heat-generating components are arranged inside the first chamber, and wherein the heat-generating components are connected to an outer wall of the first chamber, and has a number of second chambers, wherein the second chambers radially surround the first chamber, and wherein the second chambers form closed channels for guiding cooling air.

Motor system

The recognition of a polyphase machine () connected to a converter () is suggested in order to adapt the converter () to the connected machine () prior to an active productive operation. The following is arranged for. Connecting of the polyphase machine with its several electric phases to the converter (). Supplying of at least a first and a second test signal from the converter () to at least one of the several electric phases of the connected machine. Measuring of at least two causal sequences of the test signals. Evaluating of the measuring result to obtain measuring values (r, r) and allocating of these measuring values to a comparison function (). Comparing of the comparison function with a reference function () which represents one type of a polyphase machine.

Detection method for an electrical polyphase machine

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Kalletal, Germany

Martin Ehlich