Power transmission assembly and vehicle comprising this assembly

A power transmission assembly for a vehicle comprising:

• an electric machine comprising a stator fixed relative to the vehicle and a rotor movable in rotation relative to a rotation axis of said electric machine, and
• a differential comprising at least one differential input connected to the rotor of the electric machine, said differential comprising a plurality of cogwheels connected with each other to distribute the differential input power between:
• a first output intended to be connected to a first power transmission shaft transmitting power to a first wheel, and
• a second output intended to be connected to a second power transmission shaft transmitting power to a second wheel,
• the distribution being a function of the rotation speed of the first output and second output,
• the cogwheels are distributed around the electric machine, the electric machine being located inside the space of the differential,
• the assembly being characterized in that:
• the electric machine is an inverted machine in which the rotor is radially outside the stator with respect to the rotation axis;
• wherein the differential includes the following cogwheel subassemblies;
• a first epicyclic gearing arranged along the rotation axis AX on a first side of the electric machine,
• a second epicyclic gearing arranged along the rotation axis AX on a second side of the electric machine, and opposite the first side, and
• a linking mechanism which links the first epicyclic gearing to the second epicyclic gearing,
• the first and second epicyclic gearings being identical;
• and
• wherein the linking mechanism comprises a bevel pinion, the first epicyclic gearing comprising an outer crown gear with a complementary conical eating surface for meshing with the bevel pinion, and the second epicyelic gearing comprising an outer crown gear with a complementary bevel conical seating surface for meshing with the bevel pinion.