电瓶车着火提醒并及时灭火装置的研究

Research on Fire Reminder and Timely Fire Extinguishing Device for Electric Scooters

摘要: 根据当前电瓶车安全防护系统中灭火模块缺失引发的重大安全隐患，我们提出一种基于多模态感知的智能预警与自动灭火集成系统。当蓄电池充电过程出现异常工况时，系统通过分布式温度传感器与火焰光谱探测器实现早期火情识别，触发多级预警机制。在无人工干预条件下，当热失控特征温度达到T1 (设定阈值)时，智能温控执行设备将激活高压气体驱动装置，实现超细二氧化碳灭火剂的定向雾化喷射。实验表明，该系统可将灭火响应时间缩短至Δt ≤ 8.5 s，灭火剂覆盖率 ≥ 92.3%，有效抑制复燃概率至P < 0.05。通过构建“监测–预警–处置”三位一体的安全防护体系，本装置显著降低了因电池热失控引发的次生灾害风险，为新型电动交通工具的主动安全防护提供了技术解决方案。

Abstract: Based on the significant safety hazards caused by the lack of fire extinguishing modules in the current electric vehicle safety protection system, we propose an intelligent warning and automatic fire extinguishing integrated system based on multimodal perception. When abnormal working conditions occur during the battery charging process, the system uses distributed temperature sensors and flame spectrum detectors to achieve early fire recognition and trigger a multi-level warning mechanism. Without human intervention, when the characteristic temperature of thermal runaway reaches T1 (set threshold), the intelligent temperature control execution device will activate the high-pressure gas driving device to achieve directional atomization spray of ultrafine carbon dioxide fire extinguishing agent. Experiments have shown that the system can shorten the fire response time to Δt ≤ 8.5 s, achieve a fire extinguishing agent coverage rate of ≥92.3%, and effectively suppress the probability of reignition to P < 0.05. By constructing a three in one safety protection system of “monitoring warning disposal”, this device significantly reduces the risk of secondary disasters caused by battery thermal runaway, providing a technical solution for active safety protection of new electric vehicles.