The embodiment of the invention provides an electric drive axle structure which comprises a gearbox, a first gear G1 and a fourth gear G4 are installed on an output shaft of the gearbox, and the tooth number of the first gear G1 is larger than that of the fourth gear G4; a second gear G2 and a third gear G3 are installed on an output shaft of the motor, and the tooth number of the third gear G3 is larger than that of the second gear G2; the first gear G1 is meshed with or separated from the second gear G2; and the fourth gear G4 is meshed with or separated from the third gear G3. The embodiment of the invention has three gears, namely a high-speed gear, a low-speed gear and a neutral gear, so that a speed change mode of the high-speed gear and the low-speed gear can be realized, and irreversible damage to a vehicle system caused by excessive power generation of the motor is avoided through the neutral gear; the technical problem that according to an existing electric drive axle, the rotation speed ratio of a motor to a rear axle is fixed, and a motor controller is prone to being damaged is solved.

    本发明实施例提供一种电驱动桥结构,包括:变速箱,变速箱输出轴上安装有第一齿轮G1和第四齿轮G4,其中,第一齿轮G1的齿数大于和第四齿轮G4的齿数;电机,电机的输出轴上安装有第二齿轮G2和第三齿轮G3,其中,第三齿轮G3的齿数大于第二齿轮G2的齿数;以及第一齿轮G1与第二齿轮G2啮合或分离;第四齿轮G4与第三齿轮G3啮合或分离。本发明实施例具备高速档、低速档和空档三种档位,可以实现高速档和低速档的变速模式以及通过空档避免电机过度发电对车辆系统造成不可逆的损坏,解决了现有的电驱动桥使得电机与后桥的转速比固定容易导致电机控制器损坏的技术问题。


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    Title :

    Electric drive axle structure


    Additional title:

    一种电驱动桥结构


    Contributors:
    AN NING (author) / ZHANG AO (author) / HUANG YUN (author) / LI XING (author) / LENG BANGPING (author) / ZHOU RONGQIANG (author) / MA GUOLIANG (author) / MENG TIANQI (author)

    Publication date :

    2023-04-14


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES



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