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Rear-mounted rear-drive system of electric automobile

An electric vehicle and rear suspension technology, applied in the direction of electric power devices, power devices, control devices, etc., can solve the problems of high cost and difficult assembly, and achieve the effect of low cost, small assembly difficulty and improved convenience

Active Publication Date: 2020-11-03
DONGFENG AUTOMOBILE COMPANY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the defects and problems of high cost and difficult assembly in the prior art, and provide a rear-mounted rear-drive system for electric vehicles with low cost and low assembly difficulty

Method used

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  • Rear-mounted rear-drive system of electric automobile
  • Rear-mounted rear-drive system of electric automobile
  • Rear-mounted rear-drive system of electric automobile

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0072] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0073] see figure 1 — Figure 18 , a rear rear drive system of an electric vehicle, comprising a power assembly 1 and a vehicle frame 8, the power assembly 1 includes a reduction box 11 and a drive motor 12, the right side of the front end of the reduction box 11 is connected to the drive motor 12 is connected to the left end, the two sides of the rear end of the reduction box 11 are respectively connected to the inner ends of the left drive shaft assembly 13 and the right drive shaft assembly 14, and the power assembly 1 is connected to the vehicle frame 8 through the suspension system ;

[0074] The suspension system includes a left suspension 2, a right suspension 4 and a rear suspension 6, the left side of the front end of the reduction box 11 is connected with the left suspension 2, and the junction of the left suspension 2 and...

Embodiment 2

[0078] Basic content is the same as embodiment 1, the difference is:

[0079] See Figure 19 , this figure is the pointed bolt 10 used when the present invention carries out the bolted connection, and it is also used as the pipe-through shaft 9 simultaneously. The pointed bolt 10 comprises a nut 101, a screw section 102, a threaded section 103, and a bolt head 104 connected in sequence, and the side wall of the threaded section 103 is provided with external threads, and the top of the bolt head 104 is connected to the threaded section. 103, the bottom end of the bolt head 104 extends outwards, and the diameter of the bolt head 104 is tapered from top to bottom.

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Abstract

A rear-mounted rear drive system of an electric automobile comprises a power assembly and an automobile frame which are connected through a suspension system; the power assembly comprises a reductiongearbox and a drive motor; the suspension system comprises a left suspension, a right suspension and a rear suspension, wherein the left side of the front end of the reduction gearbox is connected with the left suspension, the joint of the left suspension and the reduction gearbox is opposite to the joint of the driving motor and the reduction gearbox, the right end of the driving motor is connected with the right suspension, and the part, close to the joint of the reduction gearbox and the right driving shaft assembly, of the rear end of the reduction gearbox is connected with the rear suspension; a left shock absorption module, a right shock absorption module and a rear shock absorption module are correspondingly arranged in the top ends of the left suspension, the right suspension and the rear suspension respectively, the left shock absorption module, the right shock absorption module and the rear shock absorption module are connected with a frame through corresponding left connecting units, right connecting units and rear connecting units respectively, and the connecting units are tailor-welded parts made of plates. According to the design, the cost is low, the vibration reduction effect is good, the assembling difficulty is small, and the assembling efficiency is high.

Description

technical field [0001] The invention relates to a suspension technology of an electric vehicle, belongs to the field of pure electric vehicles and components of the pure electric vehicle, and in particular relates to a rear-mounted rear-drive system of the electric vehicle. Background technique [0002] According to the needs of the drive form, the layout of the powertrain is often arranged in the front cabin and the cockpit, and these two layouts have the form of front-mounted front-drive and rear-mounted rear-drive respectively. For the front-wheel drive, the suspension layout space, structural requirements and installation process requirements of the powertrain are not high, and it is easy to realize, but the rear-mounted rear drive, that is, when the powertrain is arranged at the rear axle of the vehicle, especially pure For electric van transport vehicles, the powertrain is completely under the floor, and the installation space is limited. When the mushroom-shaped cushi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60K1/00B60K17/06B62D21/02B62D21/11
CPCB60K1/00B60K17/06B62D21/02B62D21/11
Inventor 秦三元赵健生王为才郑兆刚张亮彭建斌肖恩禹明忠王浩宇
Owner DONGFENG AUTOMOBILE COMPANY
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