Combined oil cooling concept for an electric machine with a rotor-integrated clutch, electric machine, drive train and method for cooling an electric machine

摘要

The invention relates to an electric machine (1) with a rotor-integrated clutch (2) for a drive train of a motor vehicle, with a stator (3) and a rotor (4) assigned to it, the rotor (4) having a carrier (5) on which a first part (6) of a friction clutch (7) prepared for a frictional connection with a second part (8) is attached, a cooling fluid line (9) being present to cause the stator (3) and / or the rotor (4) to supply cooling fluid to a heat dissipation, the cooling fluid line (9) being arranged and perforated in such a way that, driven by gravity, cooling fluid drips both onto a section of the rotor (4) on the one hand to generate a spray mist and on the other hand to flow over the outer surface of the stator (3) . The invention also relates to a drive train with such an electric machine (1). The invention also relates to a method for cooling such an electric machine (1), with oil being dripped from a cooling fluid line (9) onto a rotor driven by gravity on the one hand and flowing onto a stator winding (11) on the other.