The invention relates to a battery pack safety protection system and method. The battery pack safety protection system comprises: a gas source device used for supplying flame-retardant gas to a battery pack; a gas supply gas path which is connected between the gas source device and the battery pack, wherein an air supply control valve is arranged on the air supply path, the air supply control valve enables the air supply path to have a normal state and an emergency state, the air supply flow in the emergency state is larger than the air supply flow in the normal state, the gas leakage detection device is used for detecting the gas leakage condition in the battery pack, and the thermal runaway detection device is used for detecting whether thermal runaway occurs or is about to occur in the battery pack; and a control device which is connected with the gas supply control valve, is connected with the gas leakage detection device and/or the thermal runaway detection device, and is used for controlling the switching between the normal state and the emergency state of the gas supply gas path. According to the scheme, the problem that the safety protection performance of an existing battery pack safety protection system is limited is solved.
本发明涉及电池包安全防护系统及方法。电池包安全防护系统,包括:气源装置,用于向电池包供应阻燃气体;供气气路,连接在气源装置与电池包之间;供气气路上设有供气控制阀,供气控制阀使得供气气路具有常态状态和应急状态,应急状态下的可供气流量大于常态状态下的可供气流量;气体泄漏检测装置和/或热失控检测装置,气体泄漏检测装置用于检测电池包内的气体泄漏情况,热失控检测装置用于检测电池包是否发生热失控或即将发生热失控;控制装置,与供气控制阀连接,并且与气体泄漏检测装置和/或热失控检测装置连接,用于控制供气气路常态状态和应急状态的切换。上述方案解决了现有的电池包安全防护系统安全防护性能有限的问题。
Battery pack safety protection system and method
电池包安全防护系统及方法
2021-07-06
Patent
Electronic Resource
Chinese
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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