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Electric axle assembly

An electric vehicle and assembly technology, applied in the direction of electric power devices, power devices, vehicle components, etc., can solve the problems of battery layout space affecting the passenger capacity of the compartment, affecting the driving range of the vehicle, and the large volume of each component. Achieve the effects of increased battery layout space, compact structure, and stable power output

Pending Publication Date: 2019-03-05
DONGFENG DANA AXLE
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AI Technical Summary

Problems solved by technology

[0002] At present, the vast majority of pure electric vehicles adopt the power unit structure of traditional internal combustion engine vehicles, that is, the motor, transmission shaft, reducer / differential assembly; due to the long transmission chain, the loss of transmission efficiency is large, and each component Larger volume will occupy part of the car space, affecting the passenger capacity and battery layout space in the compartment, and affecting the driving range of the vehicle

Method used

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  • Electric axle assembly

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Embodiment Construction

[0014] Such as figure 1 , figure 2 shown. An electric axle assembly of the present invention includes a mechanical axle 3 with a split structure design, a driving motor 1 and a gear box 2 . Wherein, the mechanical axle 3 adopts the traditional mechanical axle in the drive unit of the traditional pure electric vehicle. The drive motor 1 adopts the motor in the traditional pure electric vehicle drive unit. The gearbox 2 includes a reduction gear and an inter-wheel differential 7 integrated in a gearbox housing 8 . The reducer is a two-stage reduction reducer composed of a primary reducer 4, a central differential 5 and a secondary reducer 6. The secondary reducer 6 of the reducer in the gearbox 2 is installed on the differential housing of the mechanical axle 3 The two-stage reducer 6 is coaxial with the two wheel ends of the mechanical axle 3, and the torque of the driving motor 1 is amplified by the two-stage speed ratio of the gearbox 2 and then input to the two wheel en...

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Abstract

The invention provides an electric axle assembly and belongs to the technical field of automobile manufacture. The electric axle assembly mainly solves the problems that a transmission chain is long and part of the automobile space is occupied due to the fact that an existing battery electric vehicle adopts a power unit structure of a traditional internal combustion engine automobile. The electricaxle assembly is mainly characterized in that the electric axle assembly comprises a mechanical axle, a drive motor and a gear case, all of which are in split type structural design; the drive motoris connected with the torque input end of the gear case, the torque output end of the gear case is connected with the mechanical axle, and the electric axle assembly is composed; and the drive motor,the gear case and the mechanical axle are arranged in a T shape. The electric axle assembly has the beneficial effects that power output is stable, efficiency is high, the structure is compact, the weight is reduced, the compartment passenger space and the battery arrangement space are enlarged, and four-wheel drive or two-wheel drive traveling of a vehicle is achieved, product applicability and competitiveness are improved, and the electric axle assembly is mainly used for the battery electric vehicle.

Description

technical field [0001] The invention belongs to the technical field of automobile manufacturing, and in particular relates to an electric axle power assembly for a pure electric vehicle. Background technique [0002] At present, the vast majority of pure electric vehicles adopt the power unit structure of traditional internal combustion engine vehicles, that is, the motor, transmission shaft, reducer / differential assembly; due to the long transmission chain, the loss of transmission efficiency is large, and each component The large volume will occupy part of the space of the car, affecting the passenger capacity and battery layout space in the compartment, and affecting the driving range of the vehicle. Contents of the invention [0003] In order to overcome the deficiencies of the prior art, the object of the present invention is to provide an electric axle assembly that integrates the drive motor, gear box and traditional mechanical axle. This compact structural arrangem...

Claims

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Application Information

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IPC IPC(8): B60K1/00B60K17/04B60K17/16B60K17/348
CPCB60K1/00B60K17/04B60K17/165B60K17/348
Inventor 王天阔胡胜利刘志英田贵文
Owner DONGFENG DANA AXLE
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