A cooling and lubricating device of an electric drive assembly and an electric drive assembly are disclosed. The cooling and lubricating device comprises a pump oil assembly (6), an oil pump circuit and an oil return circuit. The oil pump circuit comprises an oil inlet pipe (7), an shaft inner oil passage (8) and a first oil outlet pore (9) that are communicated in sequence, the shaft inner oil passage (8) extends axially in the motor shaft (3), the pump oil assembly (6) pumps lubricating oil in the reducer housing (5) into the shaft inner oil passage (8) via the oil inlet pipe (7), the first oil outlet pore (9) is provided on an outer circumference of the motor shaft (3) and is used to sling the lubricating oil in the shaft inner oil passage (8) to a part to be cooled and lubricated in the motor housing (4), an axial flow impeller (13) is provided in the shaft inner oil passage (8) and is used to pump the lubricating oil at an oil inlet end of the shaft inner oil passage (8) towards an oil outlet end of the shaft inner oil passage (8). The oil return circuit is provided at a bottom of the motor housing (4) and used to return the lubricating oil in the motor housing (4) into the reducer housing (5). The cooling and lubricating device can ensure that each part to be cooled and lubricated in the motor housing (4) can have sufficient lubricating liquid, and has the advantages such as good cooling and lubricating effect, simple structure, and low manufacturing cost.


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    Title :

    COOLING AND LUBRICATING APPARATUS FOR ELECTRIC DRIVE ASSEMBLY, AND ELECTRIC DRIVE ASSEMBLY


    Additional title:

    KÜHL- UND SCHMIERVORRICHTUNG FÜR ELEKTRISCHE ANTRIEBSANORDNUNG UND ELEKTRISCHE ANTRIEBSANORDNUNG
    APPAREIL DE REFROIDISSEMENT ET DE LUBRIFICATION POUR ENSEMBLE D'ENTRAÎNEMENT ÉLECTRIQUE ET ENSEMBLE D'ENTRAÎNEMENT ÉLECTRIQUE


    Contributors:
    LI JIANWEN (author) / DENG KAIFEI (author) / DUAN CHAOSHUAI (author) / YU PING (author)

    Publication date :

    2025-08-13


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    H02K Dynamoelektrische Maschinen , DYNAMO-ELECTRIC MACHINES / 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 / B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR



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