The invention relates to the technical field of new energy automobiles, in particular to a power assembly, a temperature control method thereof and an electric vehicle. The power assembly can be applied to electric automobiles or hybrid automobiles. The power assembly comprises a motor and a temperature control system, wherein the motor comprises a stator and a rotor; the temperature control system comprises an oil pan, a heat exchanger module, a first heat dissipation channel, a second heat dissipation channel, a control valve assembly and a bypass pipeline. The oil pan is connected with an inlet of the heat exchanger module to supply a cooling working medium to the heat exchanger module; the heat exchanger module is used for exchanging heat for the cooling working medium; the bypass pipeline is used for connecting heat exchanger modules in parallel; the first heat dissipation channel is used for dissipating heat for the stator, and the second heat dissipation channel is used for dissipating heat for the rotor; the control valve assembly is used for adjusting flow distribution of the cooling working medium in the first heat dissipation channel and the bypass pipeline. According to the power assembly, the flow of the cooling working medium in the first loop can be adjusted according to different working conditions, system energy consumption is reduced, and the cruising ability of the whole vehicle can be improved.
本申请涉及新能源汽车技术领域,尤其涉及一种动力总成及其温度控制方法、电动车。该动力总成可以应用于电动汽车或混动汽车。该动力总成包括电机和温度控制系统,电机包括定子和转子;温度控制系统包括油底壳、换热器模组、第一散热通道、第二散热通道、控制阀组件、旁通管道;油底壳与换热器模组的入口相连以向换热器模组供应冷却工质,换热器模组用于为冷却工质换热;旁通管道用于并联换热器模组;第一散热通道用于为定子散热,第二散热通道用于为转子散热;控制阀组件用于调节冷却工质第一散热通道以及旁通管道内的流量分配。该动力总成能够根据不同的工况进行第一回路内的冷却工质的流量调节,降低系统能耗,有利于提升整车续航能力。
Power assembly, temperature control method thereof and electric vehicle
动力总成及其温度控制方法、电动车
2024-11-29
Patent
Electronic Resource
Chinese
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