ELECTRIC DRIVE ASSEMBLY SYSTEM AND VEHICLE

The present disclosure relates to an electric drive assembly system, comprising: an electric motor (100) comprising a motor shaft (10) rotating about an axis of rotation (X), and a gearbox (200) coupled to the electric motor (100), the gearbox (200) comprising an input shaft (20) rotationally coupled with the motor shaft (10). A circumferential groove (1) is provided at the coupling area of the motor shaft (10) and the input shaft (20), the motor shaft (10) comprises a first radial through-hole (12) in fluid communication with the circumferential groove (1), and the input shaft (20) comprises a second radial through-hole (22) in fluid communication with the circumferential groove (1). The first radial through-hole (12) and the second radial through-hole (22) are located on both radial sides of the circumferential groove (1), respectively. The present disclosure further relates to a vehicle, comprising the electric drive assembly system as previously described.