Internal rotor electromotor e.g. power assist motor, for steering system of vehicle, has electronic part arranged on side of base of support structure turned away from stator, where base and wall of structure are formed as cooling bodies

摘要

The electromotor (1) has a stator (3) held at a radial inner side wall (11) of a pot-shaped support structure (9), and a rotor (4) rotatably supported within the stator. A base (10) and the side wall of the support structure are formed as cooling bodies. An electronic part (13) is arranged at the base of the support structure on a side of the base turned away from the stator. A bearing (8) is arranged at the base of the support structure on a side of the base turned towards the stator for supporting the rotor.