The invention provides an external rotor generator for a range extender, which comprises a flywheel shell, a motor shell, a motor rotor arranged in the flywheel shell and the motor shell, a starting gear ring, a stator core and a rotary transformer, and is characterized in that the starting gear ring is in transmission connection with the motor rotor; the motor rotor comprises a rotor spoke, a rotor hub, a rotor core and permanent magnets. A hollow convex shaft is arranged in the center of the rotor spoke, the inner wall of the rotor hub is fixedly connected with the outer wall of the rotor core, and the permanent magnet is arranged in the rotor core; the stator core is pressed on the outer wall of the hollow cylindrical shell in a space defined by the rotor hub, the outer wall of the convex shaft is fixedly connected with an inner ring of the rotary transformer, and an outer ring of the rotary transformer is fixedly connected with the hollow cylindrical shell; the outer rotor generator for the range extender has the advantages of being short in length, light in weight, simple in overall structure, few in fault points and the like, the weight of the rotor can be lighter under the condition that rotational inertia is kept unchanged, and the influence of the weight of the rotor on an engine bearing bush is reduced.

    本发明提供一种增程器用外转子发电机,包括:飞轮壳体和电机外壳,布置在飞轮壳体和电机外壳内的电机转子、起动齿圈、定子铁芯和旋转变压器,起动齿圈与电机转子传动连接;电机转子包括:转子辐、转子毂、转子铁芯和永磁体;转子辐中心设有中空的凸轴,转子毂的内壁与转子铁芯的外壁固定连接,永磁体布置在转子铁芯内部;定子铁芯在转子毂围成的空间内压装在中空柱形壳的外壁上,凸轴的外壁与旋转变压器的内圈固定连接,旋转变压器的外圈与中空柱形壳固定连接;本发明提供的增程器用外转子发电机,具有长度短、重量轻、整体结构简单、故障点少等优势,能够在保持转动惯量不变的情况下使转子重量更轻,降低转子重量对发动机轴瓦的影响。


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    Title :

    Outer rotor generator for range extender


    Additional title:

    一种增程器用外转子发电机


    Contributors:
    CHEN TAO (author) / MAO ZHENGSONG (author) / ZENG QIANG (author) / OUYANG SHIKUN (author) / SI ZHENGYONG (author) / FENG ZHIQING (author) / LI DENGXIE (author)

    Publication date :

    2022-07-12


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    H02K Dynamoelektrische Maschinen , DYNAMO-ELECTRIC MACHINES / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen



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