Novel rear axle of electric vehicle

Abstract

The invention discloses a novel rear axle of an electric vehicle. Two end covers (8) are arranged at the two ends of a shell (1) through bolts (19), a rotor sleeve (5) and rectangular magnets (6) are arranged at the outer circle end of the rotor sleeve (5) at equal intervals to form a rotor, a 12-pole rectangular winding coil (3) is arranged in a winding-free silicon steel sheet (2) to form a stator, a differential mechanism (10) is fixedly arranged in the middle in the rotor, and two motor shafts (4) are connected to the two ends of the differential mechanism (10). The star-shaped speed reducers (21) are fixedly arranged in the two ends of the shell (1) and connected with the two rotating shafts (20), spline shafts are arranged at the two inner ends of the half shafts (16), and spline holes (9) are formed in the inner middles of the outer sides of the two rotating shafts (20) and movably connected with the two spline shafts. Due to the fact that the differential mechanism and the star-shaped speed reducer are integrated in a motor embedded mode, the transverse pulling force of output power of the motor is canceled, the service life of a bearing is prolonged by multiple times, the size is small, the weight is light, operation is stable, noise is low, the acting efficiency is high, the endurance mileage is long, and the energy-saving effect is achieved.

Description

Technical field: [0001] The invention relates to a novel rear axle of an electric vehicle used in the electric vehicle. Background technique: [0002] Energy is an important basic resource for the development of human society. With the development of the world economy, the rapid increase of the world population and the continuous improvement of people's lives, the world's energy demand continues to increase, which has led to increasingly fierce competition for energy resources. The environment Pollution is aggravating and pressure on environmental protection is increasing. At present, the rear axle used by domestic electric vehicles is generally an ordinary permanent magnet motor, and the differential and reducer are independent mechanisms. The output power of the motor will generate lateral tension, and the bearings of each part of the motor reducer will be stressed, and the bearing life will be reduced. , and large in size and heavy in weight, waste of material cost, unst...

AI Technical Summary

Problems solved by technology

At present, the rear axle used by domestic electric vehicles is generally an ordinary permanent magnet motor. The differential and the reducer are independent mechanisms. The output power of the motor will generate lateral tension. , and large in size and heavy in weight, waste of material cost, unstable operation, high noise, low work efficiency, short cruising range, thus increasing energy consumption

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