An electro-mechanical drive device for adjustment devices of a motor vehicle,
more particularly for a window lifter, has a gearing with a gear housing, an electric
motor mechanically connected to the gearing, a control device mounted in the gearing
housing and having at least one power semi-conductor for controlling the electric
motor, and means as a heat sink thermally coupled to the power semi-conductor to
draw off the waste heat from the power semi-conductor. The means which as heat
sink draws off the waste heat from the power semi-conductor is integrated in the
gear housing. With the integration of the means for drawing off the waste heat
into the gear housing it is possible for the means to undertake further mechanical
or thermal functions extending beyond the function as heat sink.
