Robert Boschgmbh

Johannes Hirschle

Sigmund Braun

Hans Irion

Walter Von Emden

Sebastian Strache

Thomas Hennecke

Erich Ilic

Michael Heim

Frank Wehrmann

Heiko Nitsche

Georg Voegele

Gerhard Braun

Alexander Fink

Volker Betz

A power module for an electric motor includes at least one semiconductor switch half bridge. The half bridge includes a high-side semiconductor switch and a low-side semiconductor switch. Each switch has a contact gap terminal formed by a surface region of the switch, in particular a flat surface region. The contact gap terminals, in particular a normal vector of the terminals, each points in a same direction. At least one electrically conductive layer is enclosed between the switches and electrically connects the contact gap terminal of the low-side semiconductor switch and the contact gap terminal of the high-side semiconductor switch of the half bridge to each other. Preferably an output terminal of the half bridge is formed by at least one electrically conductive layer.

Power module for an electric motor

The invention relates to an electric motor, in particular an electronically commutated electric motor. The electric motor has a stator, a rotor and a housing, which accommodates at least the stator and the rotor in a cavity. The electric motor also has a power output stage, which is connected to the stator and is designed to energize the stator in order to induce a rotating magnetic field. The power output stage has at least one power semiconductor with a thermal contact area, wherein the thermal contact area is thermally conductively connected to the housing, with the result that heat generated in the power semiconductor can be dissipated to the housing. According to the invention, the housing has a housing cup, which at least partially surrounds the cavity and is preferably thermally conductive and which has a cup wall, wherein the cup wall has a mating contact area corresponding to the thermal contact area.

Electric motor with a power output stage and with efficient heat transport and method

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Mehrstetten, Germany

Johannes Hirschle