Design and Research of A New Type Explosion Switch
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摘要:为了克服传统熔断器在特殊环境下工作的缺点，采用聚能装药结构设计了一种新型电路保护开关，利用爆炸形成金属射流切断电路，实现电器保护。使用AUTODYN软件数值模拟分析了小剂量装药下射流对电路的切断作用，根据模拟计算数据确定了实验爆炸开关的外型和结构，以二硝基重氮酚(DDNP)为炸药，在药量30~60mg、炸高3~6mm条件下进行对比实验。实验结果表明：对于熔断片（500V 100A）采用DDNP装药炸高为15mm、药量为50mg时侵彻效果最佳。
Abstract:In order to overcome the shortcomings of the traditional fuse working in special environment, a new type of circuit protection switch was designed with the shaped charge. The circuit was cut off by the metal jet formed by explosion to realize the electrical protection. The cutting off effect of the jet on the circuit under the low dose charge using AUTODYN software was simulated and analyzed. According to the simulated data, the shape and structure of the experimental explosion switch were made, and DDNP was used as explosive in the contrast experiment under the condition of 30~60mg charge and 3~6mm explosion height. The experiment shows that for the fuse of 100A/500V, the penetration effect is the best when DDNP charge height is 15mm and charge quantity is 50mg.
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