The invention relates to an electric drive unit for a motor vehicle, comprising an electric drive and a multi-stage transmission (6), which is connected downstream of the electric drive and which is arranged, alone or together with the electric drive, in a drive housing (4). The drive housing is composed of a housing shell (11), the interior (11a) of which annularly surrounds the transmission (6), and an end wall (12), which is formed integrally with the housing shell (11). The end wall is provided, at the center thereof, with a transmission opening (17) for the transmission output shaft (18) of the transmission (6). Cooling liquid is conducted through the drive housing in order to cool the components of the transmission. In order to improve the cooling performance while utilizing precisely the design-related particularities of the electric drive unit, a ring chamber (33) arranged around the transmission opening (17) is provided on the outside of the end wall (12), and coolant channels (35) are formed in the drive housing (4), which coolant channels lead from the interior (11a) of the housing shell (11) into the ring chamber (33).


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    Title :

    Electric Drive Unit for a Motor Vehicle


    Contributors:

    Publication date :

    2022-07-21


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    F16H Getriebe , GEARING / 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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