The invention discloses a thermal runaway monitoring system for a lithium ion power battery of an electric bicycle. Comprising a power battery pack, a battery management system BMS, a smoke sensor, a pressure sensor, a single voltage monitoring circuit, a power battery module, a temperature sensor, a current sensor, a battery pack voltage monitoring circuit, a charging and discharging protection device, a battery positive electrode, a battery negative electrode and a low-voltage circuit interface. According to the thermal runaway monitoring system for the lithium ion power battery of the electric bicycle, on the basis of monitoring parameters such as voltage, current and temperature of the lithium ion battery by adopting a lithium ion power battery management system (BMS), a pressure sensor and a smoke sensor are additionally arranged in a battery pack; according to the system, the function of comprehensively judging the thermal runaway through the parameters such as the voltage, the current, the temperature, the pressure and the smoke degree of the battery is achieved, and the scheme provided by the invention can monitor and predict the thermal runaway of the lithium ion power battery in various use scenes.
本发明公开了一种电动自行车锂离子动力电池热失控监控系统,包括动力电池包、电池管理系统BMS、烟雾传感器、压力传感器、单体电压监测电路、动力电池模组、温度传感器、电流传感器、电池组电压监测电路、充放电保护装置、电池正极、电池负极和低压电路接口,本发明涉及电动自行车技术领域。该电动自行车锂离子动力电池热失控监控系统,通过采用锂离子动力电池管理系统(BMS)在监测锂离子电池电压、电流和温度等参数的基础上,在电池包内部增加了压力传感器和烟雾传感器,即该系统实现了通过电池电压、电流、温度、压力和烟雾度等参数综合判定热失控的功能,本发明提出的方案能在各种使用场景下对锂离子动力电池的热失控进行监控和预测。
Thermal runaway monitoring system for lithium ion power battery of electric bicycle
一种电动自行车锂离子动力电池热失控监控系统
2023-10-13
Patent
Electronic Resource
Chinese
IPC: | B62M RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES , Antrieb von Radfahrzeugen oder Schlitten durch den Fahrer / B62J Fahrrad- oder Motorradsättel oder -sitze , CYCLE SADDLES OR SEATS / H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER , Schaltungsanordnungen oder Systeme für die Abgabe oder Verteilung elektrischer Leistung / 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 |
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