一种电子引信用低过载旋转激活锂储备电池

A low setback acceleration and spin-activated lithium reserve battery as power sources for electronic fuze

本文制备了一种小口径弹引信用Li/SOCl_(2)储备电池,电池主要由多对双极性电极组成的电堆、金属储液罐(内置激活机构)及结构件组成,采用迭代计算方法设计了低过载激活机构。设计的锂储备电池激活时间小于100 ms,通过1.5m勤务处理考核且具备长达10年的贮存寿命。电池通过室内14000 rpm旋转试验及3000~14000 g过载下的实弹回收测试果,结果表明:电池在可在2000 g的低过载下激活且在高过载及旋转条件下可正常工作。电池尺寸为:ψ35 mm×19 mm,激活时间为80±20 ms,在-40,+25℃℃及+50℃环境温度下,激活后300 mA输出可工作200 s以上。

This paper discusses a kind of Li/SOCl_(2)(LRB)reserve battery as power sources for electronic fuze in large-caliber ammunition.The LRB consists of a cell stack with 5 bipolar electrodes,an isolated metal electrolyte tank within an activated mechanism for activating the battery and other structural parts.Specifically the design of the activated mechanism is based on the iterative calculations.The LRB is designed to provide power with an activation time less than 100ms in firing environments,a shelf time of 20 years and pass the 1.5 m drop test.The functions of the activated mechanism in the 1.5m drop test and firing environment are obtained by iterative computations and confirmed in tests.Laboratory spin tests under 14000rpm and gunfire tests under the setback acceleration from3000g to 14000g and maximum rotational velocity of 14000rmp conditions have been made to see if the cell stack could survive the shock in gunfire environments and ensure that the calculations of designed activated mechanism is reasonable.The LRB with a diameter of 38mm and a height of 17mm has showed operating voltage from 13.7V to 15.5 V with a load of 300mA,an activation time of 80±20ms and runtime of 200s at temperatures-40℃,+25℃and+50℃.