The invention provides a coaxial electric driving system and an automobile, the coaxial electric driving system comprises a motor structure and a differential mechanism, an output shaft of the differential mechanism penetrates through a rotor shaft of the motor structure, the coaxial electric driving system is characterized by further comprising a sealing element, the sealing element is fixedly installed on the first end face of a motor shell of the motor structure, the sealing element is arranged on the periphery of the first end of the rotor shaft in a sleeving mode, and the sealing element is arranged on the first end face of the motor shell. The rotor shaft is attached and connected with the rotor shaft; the first oil seal is fixedly installed on a motor end cover of the motor structure, and the first oil seal is arranged on the periphery of the second end of the rotor shaft in a sleeving mode and connected with the rotor shaft in an attached mode; the motor end cover is fixedly installed on the second end face of the motor shell. And the sealing element, the first oil seal, the motor shell, the motor end cover and the rotor shaft are encircled to form a sealing cavity. According to the scheme, isolation between the dry cavity and the wet cavity of the electric drive system is achieved, oil leakage can be avoided, the structure is simple, the size is small, and product light weight and cost control are facilitated.
本发明提供了一种同轴电驱动系统及汽车,同轴电驱动系统包括电机结构和差速器,差速器的输出轴穿过电机结构的转子轴,其特征在于,还包括:密封件,固定安装在电机结构的电机壳体的第一端面上,密封件套设于转子轴的第一端的外围,并与转子轴贴合连接;第一油封,固定安装在电机结构的电机端盖上,第一油封套设于转子轴的第二端的外围,并与转子轴贴合连接;其中,电机端盖固定安装在电机壳体的第二端面上;密封件、第一油封、电机壳体、电机端盖与转子轴合围形成一密封腔体。上述方案,实现了电驱动系统的干腔和湿腔之间的隔离,能够避免油液外泄,结构简单,体积小,有利于产品轻量化和成本控制。
Coaxial electric driving system and automobile
一种同轴电驱动系统及汽车
2022-06-28
Patent
Electronic Resource
Chinese
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