The invention discloses a two-gear type electric drive axle and a new energy automobile, and relates to the field of automobiles, the two-gear type electric drive axle comprises a motor and a variable-speed differential mechanism, and a long half shaft penetrates through the motor; the variable-speed differential mechanism is detachably connected to one end of the motor and comprises an electromagnetic clutch, an NGW type planet row and a double-inner-meshing planet row which are sequentially installed along a long half shaft, an electromagnetic brake is installed between the NGW type planet row and a variable-speed differential shell, and one end of the long half shaft is connected with a short half shaft through a differential mechanism; different gears are switched through on-off of the electromagnetic brake and the electromagnetic clutch. Output of two reduction ratios is achieved through cooperation of the clutch and the brake, compared with a traditional single planet row, the speed regulation range is larger, and rotating speed output of a vehicle under different working conditions can be met; the structure is compact, the automobile trafficability is improved, and the installation space is saved.

    本发明公开了一种两档式电驱动桥及新能源汽车,涉及汽车领域,包括电机和变速差速机构,电机内有长半轴贯穿;变速差速机构可拆卸连接于电机一端,包括沿长半轴依次安装的电磁离合器、NGW型行星排和双内啮合行星排,NGW型行星排与变速差速外壳之间安装电磁制动器,长半轴一端通过差速器连接短半轴;通过电磁制动器与电磁离合器通断以切换不同档位。本发明通过离合器和制动器的配合实现两种减速比的输出,相比传统单行星排调速范围更大,可以满足车辆不同工况下的转速输出;结构紧凑,有利于提高汽车通过性及节约安装空间。


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    Title :

    Two-gear type electric drive axle and new energy automobile


    Additional title:

    一种两档式电驱动桥及新能源汽车


    Contributors:
    CHU XIAOMENG (author) / DONG SHENG (author)

    Publication date :

    2023-03-07


    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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