Drive arrangement and its use

Abstract

Drive arrangement for a wheel direct drive system comprising a stator assembly (20) with a stator yoke (21) and a plurality of stator poles (25) distributed in a circumferential direction (6), wherein, for connecting the stator poles (25) to the stator yoke (21) and for radially fixing the stator poles (25) to the stator yoke (21), the stator poles (25) provide a positive locking contour and a correspondingly shaped pole receptacle (23) is provided on the stator yoke (21) into which the positive locking contour of the stator poles (25) engages, comprising a rotor assembly (40) cooperating with the stator assembly (20) and coaxially associated with the stator assembly (20), wherein the rotor assembly (40) comprises a shaft (44) extending in a longitudinal direction (1) and at least one rotationally fixedly connected to the shaft (44),a permanent magnet (42) in operative connection with the stator poles (25) and wherein an annular air gap is formed between the stator poles (25) of the stator assembly (20) and the at least one permanent magnet (42) of the rotor assembly (40), and comprising a housing (10) in which the shaft (44) is rotatably supported and which receives the stator assembly (20) at least section by section, wherein each stator pole (25) is realized as a part of a pre-assembly group (24) such that a coil carrier (28) of the pre-assembly group (24) with a winding (28) provided on the coil carrier (28) is placed on and encompasses a pole web (27) of the stator pole (25), wherein the positive locking contour adjoins the pole web (27) at its end and the pole web (27) and / or the positive locking contour at least section by section the coil carrier (28) project beyond, and wherein the pre-assembly group (24) is inserted into the pole receptacle (23) with the form-fitting contour,that the coil carrier (28) is positioned against a contact surface (22) provided on the end face of the stator yoke (21).