Intelligent safety valve for lithium ion battery pack of electric vehicle

The utility model provides an intelligent safety valve for a lithium ion battery pack of an electric automobile. The intelligent safety valve comprises a pressure sensor, a gas smoke sensor and an exhaust device, wherein the pressure sensor and the gas smoke sensor are positioned in a battery module or a battery pack; and the control device is used for receiving measurement parameters of the pressure sensor and the gas smoke sensor and controlling the exhaust device to work. The device has the advantages that the states of the battery module or the battery pack, including internal pressure, released gas and the like, can be monitored in real time, so that abnormal signals in the battery module or the battery pack are monitored, the abnormal signals are graded, and different solutions are implemented. 本实用新型提出了一种电动汽车锂离子电池组智能安全阀，包括位于电池模组或电池包内的压力传感器及气体烟雾传感器，与电池模组或电池包内腔连通的排气装置；还包括用于接收压力传感器、气体烟雾传感器测量参数，并控制排气装置工作的控制装置。本实用新型能够实时监测电池模组或电池包状态，包括内部压力、释放气体等，以此监测电池模组或电池包内的异常信号，并对该异常信号划分等级，实施不同的解决方案的优点。