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Integrated external rotor electric wheel integrated structure and assembly method

A technology of rotor electric wheel and assembly method, which is applied in the direction of power device, motion deposition, control device, etc., and can solve the adverse effects of vehicle ride comfort and riding comfort, the increase of the mean square value of tire vibration acceleration, and the increase of unsprung mass and other problems, to achieve the effect of improving dynamic characteristics, improving ride comfort, and improving ride comfort

Inactive Publication Date: 2019-03-01
SHANDONG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The research results of many scholars at home and abroad show that the increase of the unsprung mass of the hub motor drive system will significantly increase the dynamic load of the tire and the mean square value of the vibration acceleration of the vehicle body, which will adversely affect the ride comfort of the vehicle

Method used

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  • Integrated external rotor electric wheel integrated structure and assembly method
  • Integrated external rotor electric wheel integrated structure and assembly method
  • Integrated external rotor electric wheel integrated structure and assembly method

Examples

Experimental program
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Effect test

Embodiment 1

[0031] Figure 4 It is a structural principle diagram of Embodiment 1 of the present invention for vehicles. The structure and principle of embodiment 1 are as follows:

[0032] The stator and the coil winding 3-5 are fixed on the fixed shaft 3-11 through the stator support frame 3-6 and the vibration damping mechanism through the bolt connection, which ensures that the stator part remains stationary; the rotor 3-3 and the rotor ring gear 3-14 The vibration damping element 5-2 is bolted between them, and the rotor ring gear 3-14 acts as a support frame for the rotor 3-3, ensuring the normal operation of the rotor 3-3; the planetary reduction mechanism includes two stages, and the main structure includes the sun gear, Planetary gear, ring gear, and planet carrier, the first stage is fixed by the sun gear 3-13, the input of the ring gear 3-16, and the output of the planet carrier 3-18, when the motor is working, the rotor 3-3 rotates to drive the rotor ring gear 3-14 Rotate to...

Embodiment 2

[0040] The concrete structure of embodiment 2 is as Figure 5 shown. The difference from Embodiment 1 is that the brake mechanism no longer brakes the planet carrier 3-19, but brakes the rotor ring gear 3-14, and other structures and components remain basically unchanged. The specific structure and working principle are as follows:

[0041] The brake disc of the brake is selected as the disc structure of the rotor ring gear 3-14, and the brake caliper 6-2 is connected to the stator support frame 3-6 through bolts and nuts. When the wheel needs to be braked, the brake caliper 6-2 The disk structure 5-1 of the rotor ring gear is braked, so that the rotor 3-3 stops rotating, and the vehicle stops moving forward. Compared with Embodiment 1, this design brakes the power source rotor 3-3, thereby greatly reducing the force required for braking, reducing the braking burden of the brake, and reducing the heat generated by the brake , to ensure the braking efficiency of the brake an...

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Abstract

The invention discloses an integrated external rotor electric wheel integrated structure and an assembly method. The integrated external rotor electric wheel integrated structure comprises a hub motor, decelerating mechanisms, a brake, a damping mechanism, a cooling mechanism, a rim and the like. The decelerating mechanisms comprise a first-level decelerating mechanism and a second-level decelerating mechanism, a rotor of the hub motor and a gear ring of the first-level decelerating mechanism are designed as an integrated structure, and a planetary frame of the first-level decelerating mechanism and a sun wheel of the second-level decelerating mechanism are designed as an integrated structure. Power is input by the rotor of the hub motor and output to wheels through the gear ring and the planetary frame of the first-level decelerating mechanism and the solar wheel and a planetary frame of the second-level decelerating mechanism to drive a vehicle to operate. Meanwhile, a brake disc ofthe brake and the planetary frame of the second-level decelerating mechanism are designed as an integrated structure, the brake disc of the brake rotates accordingly, and a brake caliper is mounted ona shell. The cooling mechanism adopts a mode of combining splash cooling and oil passage cooling to complete the overall cooling of the motor, the decelerating mechanisms, the brake and the like. Thesystem can be widely used in various wheels using different manufacturers / models, and has high universality.

Description

technical field [0001] The invention relates to a pure electric drive power transmission system of an electric vehicle, in particular to a method for integrating and assembling an integrated outer rotor electric wheel. technical background [0002] As one of the key technologies of the next generation of "pure electric drive" electric vehicles, in-wheel motor drive electric vehicles have been highly valued by the industry due to their obvious technical advantages in vehicle general layout structure, chassis active control and control convenience. The in-wheel motor drive system is significantly different from the traditional centralized motor drive system for vehicles. The in-wheel motor drive system needs to highly integrate in-wheel motors, brakes and other connecting components and arrange them reasonably in narrow wheels. Therefore, due to structural and space constraints, the design of the electric wheel drive system must not only consider the requirements of vehicle dr...

Claims

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Application Information

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IPC IPC(8): B60K7/00B60K17/04
CPCB60K7/0007B60K17/046B60K2007/0092
Inventor 谭迪葛光成
Owner SHANDONG UNIV OF TECH
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