Braun Gmbh

Alexander Schröter

Bernhard Kraus

Uwe Schober

Hansjörg Reick

Peter Hilfinger

Gerhard Kressner

Christian Junk

An electric drive unit for generating an oscillating movement, having a stator, a rotor, a torsion element and a tuning element. The tuning element acts upon the torsion element and serves to mechanically tune the resonant frequency of the drive unit.

Electric drive unit for generating an oscillating displacement

An electric motor for a small-scale electrical appliance, such as a toothbrush or shaver. The electric motor includes at least one oscillatory motor component, a magnet arrangement having at least one permanent magnet, and a coil for generating a magnetic field which, in interaction with the magnet arrangement, generates a force for excitation of an oscillatory linear motion. During the interaction between the magnet arrangement and the magnetic field produced by the coil, a torque for excitation of an oscillatory rotational motion is additionally generated.

Electric motor with a coil arrangement for providing oscillatory linear and rotational movement

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Steinbach, Germany

Alexander Schröter