The invention relates to the technical field of vehicle engineering, in particular to a cooling device, a vehicle driving system and a vehicle. A return pipeline is arranged between the circulating pump and the cooling cavity; the liquid level sensor is arranged in the cooling cavity; the valve unit is arranged on the backflow pipeline; when a liquid level signal sent by the liquid level sensor indicates that the liquid level in the cooling cavity is lower than a first preset liquid level value, the control valve unit is controlled to be closed so as to increase the cooling oil in the cooling cavity, and when the liquid level signal indicates that the liquid level in the cooling cavity is higher than a second preset liquid level value, the control valve unit is controlled to be opened. The flow and the liquid level of cooling oil in the cooling cavity are accurately controlled, it is ensured that the cooling oil is always kept within the optimal range, enough oil in the cooling cavity is effectively cooled, the motor is prevented from being overheated, the service life of the motor is prolonged, power loss is reduced, and the efficiency and the reliability of the system are improved.

    本申请涉及车辆工程技术领域,尤其涉及一种冷却装置、车辆驱动系统及车辆,冷却装置,包括至少两个冷却腔;循环泵与冷却腔之间设有回流管路;液位传感器设于冷却腔中;阀单元设于回流管路上;在液位传感器发出的液位信号表明所述冷却腔中的液位低于第一预设液位值时,控制阀单元关闭,以增加冷却腔中的冷却油,并在液位信号表明所述冷却腔中的液位高于第二预设液位值时,控制阀单元开启。精确控制冷却腔中冷却油的流动和液位,确保冷却油始终保持在最佳范围内,使得冷却腔中有足够的油液进行有效冷却,防止电机过热,延长电机的使用寿命,减少功率损失,提高系统的效率及可靠性。


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    Title :

    Cooling device, vehicle driving system and vehicle


    Additional title:

    冷却装置、车辆驱动系统及车辆


    Contributors:
    HAN XUE (author) / GU JUN (author)

    Publication date :

    2025-05-02


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    H02K Dynamoelektrische Maschinen , DYNAMO-ELECTRIC MACHINES / 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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