Robert Boschgmbh

Soenke Schuch

Philipp Zipf

Marco Eitzert

An electronics unit for an electrical device, in particular for a motor-operated electrical device, includes a printed circuit board populated, in particular on one side, and having a plurality of power transistors for actuating a multiphase load, in particular a multiphase electric motor, of the electrical device. Each phase of the load is assigned at least one power transistor. A first electrical damping element for damping transients caused by switching processes of the power transistors is connected in parallel with at least one of the power transistors of a first phase with a highest leakage inductance. No electrical damping element acting in this manner is provided for at least one of the other phases of the load, in particular for the phase with a lowest leakage inductance.

Electronics unit for an electrical device

A rotor for an electric motor includes a rotor core having a radius and a peripheral outer surface. The rotor further includes at least one air deflector element associated with the peripheral outer surface. The at least one air deflector element has at least one slope arranged at a predetermined angle to the radius. The at least one air deflector element is designed to deflect an air flow which occurs during a rotation of the rotor and flows along the peripheral outer surface counter to a direction of rotation of the rotor, at least partially in a flow direction oriented at least approximately perpendicularly to the peripheral outer surface.

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Leinfelden-Echterdingen, Germany

Soenke Schuch