The invention belongs to the technical field of integrated speed reducers, and particularly relates to an integrated speed reducer for an electric automobile, which comprises a speed reducer assembly, a brake assembly and a motor, the motor is fixedly arranged on a chassis of the automobile, the speed reducer assembly comprises a flange plate, a speed reducer shell and a planetary gear, and the flange plate is used for fixedly connecting the speed reducer shell and a hub. The planetary gear is arranged in the speed reducer shell and comprises a sun gear, a planetary pinion set, a planet carrier and an outer gear ring, the sun gear is fixedly connected with the output end of the motor through a main shaft, the planet carrier is fixedly connected with the flange plate, the outer gear ring is locked, and the brake assembly is connected with the speed reducer shell. The integrated speed reducer for the electric automobile has the beneficial effects that the speed reducer assembly and the brake assembly are integrated in the hub, on one hand, the space of the hub is fully utilized, a power transmission chain is shortened, and the transmission efficiency is improved; on the other hand, the motor is fixed to the chassis, the installation difficulty of the speed reducer is reduced, and the problem of high-integration heat dissipation difficulty is solved.

    本发明属于集成式减速器技术领域,尤其涉及一种电动汽车用集成式减速器,包括减速器总成、制动器总成和电机,电机固定设置在汽车的底盘上,减速器总成包括法兰盘、减速器壳体和行星齿轮,法兰盘用于固定连接减速器壳体和轮毂,行星齿轮设置在减速器壳体内,行星齿轮包括太阳轮、行星小齿轮组、行星架和外齿圈,太阳轮通过主轴与电机的输出端固定连接,行星架与法兰盘固定连接,外齿圈锁死,制动器总成与减速器壳体连接。有益效果:该电动汽车用集成式减速器的减速器总成和制动器总成集成在轮毂里,一方面充分利用轮毂空间,缩短动力的传动链,提高传动效率;另一方面电机固定在底盘上,降低该减速器的安装难度,也解决高度集成散热困难的问题。


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    Title :

    Integrated speed reducer for electric automobile


    Additional title:

    一种电动汽车用集成式减速器


    Contributors:

    Publication date :

    2022-06-21


    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 / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / B60T Bremsanlagen für Fahrzeuge oder Teile davon , VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF



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