The invention provides a power battery passive safety management system applied to the technical field of new energy automobiles, a heat exchange plate (31) is arranged between adjacent battery cells (32) of the battery module (2) of the power battery passive safety management system, and a plurality of refrigerant pipelines (38) arranged on the heat exchange plate (31) in a bent manner are arranged between a refrigerant inlet (37) and a refrigerant outlet (41) of the heat exchange plate (31); a refrigerant spraying opening (39) is further formed in the heat exchange plate (31), a refrigerant spraying opening (39) is communicated with the refrigerant pipelines (38), and the refrigerant spraying opening (39) is covered with a fusible material sheet (40). The power battery passive safety management system is simple in structure, the refrigerant in the heat management system can be effectively used as a fire extinguishing medium, the flame-retardant refrigerant is used for isolating oxygen and cooling and diluting high-temperature combustible gas during thermal runaway, a controller and driving equipment are not needed for thermal runaway control, the fire extinguishing performance is reliable, and the safety of the power battery is improved.
本发明提供一种应用于新能源汽车技术领域的动力电池被动安全管理系统,所述的动力电池被动安全管理系统的电池模组(2)相邻电芯(32)之间设置换热板(31),换热板(31)的制冷剂进口(37)和制冷剂出口(41)之间设置多道弯曲设置在换热板(31)上的制冷剂管道(38),换热板(31)上还设置制冷剂喷出口(39),制冷剂喷出口(39)连通制冷剂管道(38),制冷剂喷出口(39)上覆盖易熔材料片(40),本发明所述的动力电池被动安全管理系统,结构简单,能够有效利用热管理系统中的冷媒做为灭火介质,利用阻燃的制冷剂来隔绝氧气并冷却、稀释热失控时的高温可燃气体,热失控控制不需要控制器以及驱动设备,灭火性能可靠,提升动力电池安全性。
Power battery passive safety management system
一种动力电池被动安全管理系统
2022-01-07
Patent
Elektronische Ressource
Chinesisch
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / 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 |
Safety management system and safety management method for power battery of vehicle
Europäisches Patentamt | 2021
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