Abstract: An actuator is provided with a housing to hold a drive system, a transmission which converts its motion into an essentially translational movement of an output element, and an electronic subassembly. The housing has a first housing part which contains the transmission and a second housing part which supports the electronic subassembly, which is detachable from the transmission. The two housing parts, when connected to one another, and without any partitions separating them, form a compartment in which the transmission and the electronic subassembly are contained as enclosed components which are three-dimensionally engaged with one another, but are functionally separate from one another.

Abstract: An actuator is provided with a drive system and a crank mechanism which converts the motion of the drive system into an essentially translational motion of an output element. The crank mechanism is designed as a worm gear pair with a worm gear which sits on the output shaft and is engaged with a segment worm gear which is rotationally mounted in a housing, whereby engaged with the segment worm gear, in addition to the output element, there is an energy storing device, preferably a spring device, mounted so that it can pivot in a bearing, which energy storing device can move relative to the segment worm gear.