Patent ID: 7973435

Claim:
An electrical linear drive device comprising an outer housing, in which the drive part of a drive unit designed in the form of an electrodynamic linear direct drive is inserted axially like a cartridge so that an output drive rod of the drive unit protrudes from the front side of the outer housing, and the drive part has an external drive housing that accommodates a stationary drive coil arrangement and an axially movable armature, which is connected with the output drive rod and has a drive magnet arrangement, a position detecting means for the detection of at least one axial position of the movable unit comprising the armature and the output drive rod, and a central electrical interface means, connected both with the drive coil arrangement and also with the position detecting means, for external electrical communication, wherein the outer housing possesses a housing tube and, arranged at the ends thereof, a front housing cover and a rear housing cover, which altogether delimit a receiving space completely accommodating the drive part, the output drive rod extending through the front housing cover, and wherein the central electrical interface means is arranged laterally on the housing tube axially between the two housing covers and is connected by way of at least one electrical operation cable with the drive coil arrangement and by way of at least one electrical signal cable, separate from such operation cable, with the position detecting means, and all these electrical cables extend, concealed to the outside, in at least one peripherally closed cable channel formed in the wall of the housing tube and extending in the longitudinal direction of the housing tube, the external drive housing of the drive part comprising a tubular wall portion surrounding the drive coil arrangement while engaging an inner face of the housing tube of the outer housing, the tubular wall portion being a magnet yoke for the drive coil arrangement.