Coaxial electric drive axle power assembly with disconnecting mechanism

Abstract

The invention discloses a coaxial electric drive axle power assembly with a disconnecting mechanism. The assembly comprises a motor, a sun gear, a fixed outer gear ring, a planetary gear, a differential mechanism shell, a differential gear train and a power disconnection mechanism. The sun gear is mounted on a rotor shaft of the motor; the planetary gear is installed on the differential mechanismshell in a self-rotating mode; the planet gear can drive the differential mechanism shell to synchronously rotate by taking a rotating shaft of the sun gear as a center; the sun gear, the planetary gear, the differential mechanism shell and the fixed outer gear ring form a planetary gear train, and power provided by the motor is input into the planetary gear train through the sun gear and output by the differential mechanism shell; and a power input end of the power disconnection mechanism is connected with the differential mechanism shell, a power output end of the power disconnection mechanism is connected with the differential gear train, and the power disconnection mechanism can cut off or be connected with power transmission between the differential mechanism shell and the differential gear train.

Description

technical field [0001] The invention relates to the technical field of automobile drive power assembly, in particular to a coaxial electric drive axle power assembly with a disconnecting mechanism. Background technique [0002] With the shortage of oil supply and the increasing environmental pollution, the development of new energy vehicles is gradually being paid attention to. New energy vehicles will become the mainstream of the market in the future. New energy vehicles include pure electric front drive, pure electric rear drive, pure electric front and rear drive, pure electric Various forms such as four-wheel drive and hybrid power. In pure electric front and rear drive, pure electric four-wheel drive and hybrid drive systems, the electric drive axle powertrain can be used for auxiliary drive. The powertrain of the electric drive axle usually uses the motor to provide power, and the power is input to the differential gear train after passing through the planetary gear t...

AI Technical Summary

Problems solved by technology

The powertrain of the electric drive axle usually uses the motor to provide power, and the power is input to the differential gear train after passing through the planetary gear train for deceleration, and finally the power is output to the wheels through the differential gear train. During auxiliary driving, when the whole vehicle does not need power compensation, the powertrain of the electric drive axle will stop working. Consumption also increases

Moreover, the existing electric drive axle power assembly is relatively large in size and not compact in structure, which is not conducive to the lightweight of the whole vehicle and affects the battery life of the whole vehicle

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