Integrated contra-rotating double-rotor electric wheel integrated structure

Abstract

The invention discloses an integrated contra-rotating double-rotor electric wheel integrated structure. The integrated contra-rotating double-rotor electric wheel integrated structure comprises a contra-rotating double-rotor motor, a planetary reduction mechanism, a disc brake, a shock absorbing mechanism, a cooling mechanism, a rim, a tire and the like. By sufficiently utilizing a characteristicthat internal and external rotors of contra-rotating double rotors both have rotation speed and torque outputs, the contra-rotating double-rotor motor is used as a hub driving system power source to design an electric wheel integrated structure; and the integrated structure simultaneously considers vibration absorbing, cooling, sealing and braking design of the system so that a hub driving systemcan more stably work. According to the integrated contra-rotating double-rotor electric wheel integrated structure, the structural scheme can realize three driving modes so that the rotation speed andtorque ranges of the hub driving system in operation are enlarged, and the hub driving system can realize multi-condition output; and meanwhile, through adoption of the integrated structural design,the utilization rate of the interior space in the wheel is increased to enable the wheel to be conveniently used in a matched manner; and the integrated contra-rotating double-rotor electric wheel integrated structure can be widely applied to multiple pure electric vehicle models and can also be used for hybrid vehicles with these models.

Description

technical field [0001] The invention relates to a power drive system in the field of electric vehicles, in particular to an integrated structure of an integrated counter-rotating double-rotor electric wheel. technical background [0002] With the increasing consumption of global resources and the aggravation of environmental pollution, hybrid electric vehicles and pure electric vehicles occupy an important position in the current automotive industry due to their low pollution characteristics. In-wheel motor-driven vehicles highly integrate the drive motor and deceleration mechanism into the wheels. This structure can not only improve the transmission efficiency, but also simplify the mechanical structure of the chassis. At the same time, it also reduces the mass of the vehicle and makes the layout more reasonable. The intelligence and electrification of the chassis provide the possibility, and the technical advantages of in-wheel motors driving vehicles are highly valued by ...

AI Technical Summary

Problems solved by technology

The integrated design of the hub motor drive system, as the core technology of the hub motor drive electric vehicle, its performance will directly affect the driving / braking performance of each drive wheel and the driving performance of the whole vehicle. The drive motors in the field are generally of ordinary single-rotor motor structure, but due to the limitation of space and operating environment, the requirements for the torque / power density of the in-wheel motor are relatively high, and it is difficult to meet the needs of vehicle operation.

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