The invention provides an extended-range power assembly and an electric vehicle. The power assembly comprises a motor, an engine and a liquid cooling system, the liquid cooling system comprises a motor cooling liquid loop, an engine cooling liquid loop and a heat exchange plate, and the motor cooling liquid loop is used for exchanging heat with lubricating oil in the motor through a heat exchanger. The engine cooling liquid loop is used for conveying cooling liquid to the engine. The heat exchange plate comprises two internal flow channels which are independent of each other. One internal flow channel is used for receiving cooling liquid flowing out of a radiator of a motor cooling liquid loop and conveying the cooling liquid to a heat exchanger. The other internal flow channel is used for receiving cooling liquid flowing out of the engine through a valve and conveying the cooling liquid to a radiator of an engine cooling liquid loop. According to the extended-range power assembly, waste heat of the engine can be used for heating lubricating oil of the motor in the low-temperature environment, and therefore the working efficiency of the power assembly is improved.
本申请提供一种增程式动力总成和一种电动车辆。动力总成包括一个电动机、一个发动机和一个液冷系统,液冷系统包括一个电动机冷却液回路、一个发动机冷却液回路和一个换热板,电动机冷却液回路用于通过换热器与电动机内部的润滑油换热。发动机冷却液回路用于向发动机输送冷却液。换热板包括相互独立的两个内部流道。其中一个内部流道用于接收电动机冷却液回路的散热器流出的冷却液和用于向换热器输送冷却液。另一个内部流道用于通过一个阀门接收发动机流出的冷却液和用于向发动机冷却液回路的散热器输送冷却液。本申请提供的增程式动力总成在低温环境中可利用发动机的余热为电动机的润滑油加热,从而提升动力总成的工作效率。
Extended-range power assembly and electric vehicle
增程式动力总成及电动车辆
2025-02-18
Patent
Electronic Resource
Chinese
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