| Micro-electromechanical system (MEMS) promotes the miniaturization and intelligentization of the fuze system. This subject mainly researches on the MEMS electrical connection switch used in fuze power supplies, The electrical connection switch can distinguish the fuze duty environment from the normal emission environment, ensure the safety of the following circuit and the fuse power during the security service processing environments, connect rapidly and keep the conduction status to making the power-supply sustainable.First of all, analyzing the switch working environment and property requirement, the paper summarizes the basic design requirements of the switch, including the miniaturization requirement, the disconnection requirement in the security service processing, the response acceleration threshold, the short response time, the fine conduction property and the resistance to high overloads, etc. According to the basic design requirements of the switch and MEMS technical characteristics, the electrical connection switch is researched through the principle and theoretical model, and posed the overall design.Secondly, the structure of three constituent parts of the switch is designed. It contains the switch driving structure, environmental distinction mechanism and the latching mechanism. By simulation, the static and dynamic properties of each structure are researched. The planar micro-zigzag groove structure is researched by theoretical respect, and proves to guarantees the security during the security service processing environment. After analyzing the key structural parameters of the plane zigzag groove and extracting the optimal structural parameters of each structure part, the overall switch structure is designed and demonstrated to have the ability to distinguish the fuze environment, close quickly, conduct excellently and bear high impact acceleration.Finally, through using Coventor Ware analyzing the manufacturing craft simulation, we get a conclusion of craft impacts. |
PDF Full Text Request