Four-wheel driving power assembly of electric car

Abstract

The invention discloses a four-wheel driving power assembly of an electric car, which relates to the technical field of electric vehicles and is designed for saving the space and lightening the weight. The four-wheel driving power assembly comprises a motor, a speed reducer, a differential and a power divider which are connected in sequence, wherein a rotor of the motor is fixedly connected with an input shaft of the speed reducer, an output shaft of the speed reducer is fixedly connected with a differential shell of the differential, the differential shell is connected with a differential mechanism arranged in the differential mechanism shell, the differential mechanism is connected with a first half shaft and a second half shaft which can drive two of the wheels of the electric car, the power divider comprises an input gear and an output gear which are meshed with each other, the input gear stretches out of the differential mechanism shell and is fixedly connected with the differential mechanism shell, and the output gear is connected with a driving axle which can drive the other two wheels. The four-wheel driving power assembly is suitable for being used on the electric vehicles.

Description

technical field [0001] The invention relates to the technical field of electric vehicles, in particular to a four-wheel drive power assembly of an electric vehicle. Background technique [0002] Now my country's urban air pollution has become a problem that cannot be ignored, and vehicle emissions are one of the main sources of pollution. In addition, with the development of the economy, more and more vehicles are put into use in large quantities, and oil resources will face a serious shortage. Therefore, the development of vehicles using clean new energy, such as electric vehicles, is a significant and long-term strategic consideration. [0003] At present, electric vehicles are in a period of rapid development, and many large automobile companies at home and abroad are developing their own electric vehicles. Among them, traditional electric vehicles are front-wheel drive or rear-wheel drive, and the powertrain of this drive mode includes motors, reducers and differential...

AI Technical Summary

Problems solved by technology

[0005] At present, one way of connecting the transfer case to the differential in the powertrain is to connect the input gear of the transfer case side by side with the differential case of the differential so that the Both the input gear and the differential case need to occupy a certain space in the power assembly, which increases the overall space of the power assembly; in addition, the input gear needs to be accommodated in the transfer case of the transfer case In the casing, and the transfer case has a certain volume and weight, so the transfer case not only takes up a large space of the powertrain, but also increases the weight of the powertrain

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