Integrated driving device for pure electric vehicle

The invention discloses an integrated driving device for a pure electric vehicle, which comprises a left haft shaft, a motor, a first planet row, a second planet row, a differential mechanism which are integrated into an integrated structure. The planet rows are composed of planet row sun gears, planet row planet gears, planet row gear rings and planet row planet carriers. A rotor shaft of the motor is a hollow shaft, the left half shaft is located in the hollow rotor shaft of the motor, and the rotor shaft of the motor is connected with the first planet row sun gear. The first planet row gear ring and a second planet row gear ring are arranged fixedly, the first planet row planet carrier is connected with the second planet row sun gear, and the second planet row planet carrier is connected with a casing of the differential mechanism. Power of the motor is transmitted to the differential mechanism after speed reduction and torsion increase are performed on the power through the first planet row and the second planet row, and the power is transmitted to a left driving wheel and a right driving wheel of the vehicle through the left half shaft and the right half shaft. The integrated driving device for the pure electric vehicle integrates a driving mechanism, a speed reduction mechanism and the differential mechanism into a whole, improves space utilization rate, and facilitates arrangement on the pure electric vehicle.