The invention provides a battery heat management system, an electric vehicle and a battery heat control method. The battery thermal management system comprises a power battery used for storing electric energy; a heating device, wherein the heating device is connected to the outer surface of the power battery and can generate heat to heat the power battery; a heat exchange assembly, wherein a partof the heat exchange assembly is connected with the outer surface of the power battery, and the heat exchange assembly can exchange heat with the power battery so as to realize heating or heat dissipation of the power battery; and a controller, wherein the controller is electrically connected with the heating device and the heat exchange assembly so as to control the working states of the heatingdevice and the heat exchange assembly, the controller can control the heating device and/or the heat exchange assembly to heat the power battery according to the motion state of the electric vehicle,and the controller can further control the heat exchange assembly to dissipate heat of the power battery. Through the technical scheme of the invention, the power battery can be heated or cooled according to the working requirements, the temperature control accuracy is higher, and the working performance of the power battery can be prevented from being influenced by over-high or over-low temperature.

    本发明提供了一种电池热管理系统、电动车和电池热量控制方法。其中,电池热管理系统包括:动力电池,用于储存电能;发热装置,连接于动力电池的外表面,发热装置自身可产生热量,以对动力电池加热;换热组件,部分换热组件与动力电池的外表面相连接,换热组件可与动力电池换热,以实现对动力电池加热或散热;控制器,与发热装置和换热组件电连接,以控制发热装置和换热组件的工作状态,控制器可根据电动车的运动状态控制发热装置和/或换热组件对动力电池加热,控制器还可控制换热组件对动力电池散热。通过本发明的技术方案,可根据工作需求对动力电池进行加热或散热,对温度的控制准确性更高,可防止动力电池因温度过高或过低而影响工作性能。


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    Title :

    Battery heat management system, electric vehicle and battery heat control method


    Additional title:

    电池热管理系统、电动车和电池热量控制方法


    Contributors:

    Publication date :

    2020-08-14


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    H01M Verfahren oder Mittel, z.B. Batterien, für die direkte Umwandlung von chemischer in elektrische Energie , PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen



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