The embodiment of the invention provides a power battery heating system and an electric vehicle, and relates to the technical field of battery heating. The power battery heating system comprises an electric driving mechanism, a power battery, a charging mechanism and a heat management water path mechanism, the power battery comprises a first power battery and a second power battery; the electric driving mechanism comprises a motor and a three-phase bridge arm assembly, and three phases of the motor are connected with three-phase end points of the three-phase bridge arm assembly respectively; the charging mechanism comprises a charging semiconductor switch assembly and a charging diode, the charging semiconductor switch assembly comprises a first charging semiconductor switch, the first charging semiconductor switch is connected between the first power battery and the second power battery, and the charging diode is connected with the first charging semiconductor switch in parallel. A star point of the motor is connected between the second power battery and the first charging semiconductor switch; and the heat management waterway mechanism is respectively connected with a cooling pipeline of the electric driving mechanism and a cooling pipeline of the power battery. The power battery heating system can achieve the technical effect of improving the heating efficiency.
本申请实施例提供一种动力电池加热系统及电动车辆,涉及电池加热技术领域。该动力电池加热系统包括电驱机构、动力电池、充电机构和热管理水路机构;动力电池包括第一动力电池和第二动力电池;电驱机构包括电机和三相桥臂组件,电机的三相分别连接三相桥臂组件的三相端点;充电机构包括充电半导体开关组件和充电二极管,充电半导体开关组件包括第一充电半导体开关,第一动力电池和第二动力电池之间连接第一充电半导体开关,充电二极管与第一充电半导体开关并联,电机的星点连接在第二动力电池和第一充电半导体开关之间;热管理水路机构分别连接电驱机构的冷却管路、动力电池的冷却管路。该动力电池加热系统可以实现提高加热效率的技术效果。
Power battery heating system and electric vehicle
一种动力电池加热系统及电动车辆
2023-01-03
Patent
Electronic Resource
Chinese
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