通过对双断点塑壳断路器触头机构的动作过程的受力与运动的详尽分析， 应用SolidWorks软件创建了符合实际情况的物理模型与动力学模型，然后应用MATLAB软件，以双断点断路器触头机构相关参数如杠杆弹簧刚度、下连杆长度、动触头质量等多种参数的变化为实例进行优化设计，计算出对应的触头分断速度、固有分断时间、超行程等断路器关键技术数据，同时得到相应情况下的触点P的运动曲线图，为双断点断路器触头机构的优化设计或逆向工程提供依据和参考。

Through a detailed analysis of the force and motion of action about contact mechanism of the two-breakers molded case circuit breaker, creating a kinetic model in line with the actual situation using SolidWorks software, and then using MATLAB software, two-breakers circuit breaker contacts with institutions spring stiffness related parameters such as leverage, changes in the length of the lower link, the movable contact quality and other parameters to optimize the design for instance, calculate the corresponding contact breaking speed, inherent breaking time, travel and other ultra-breaker key technical data, at the same time the corresponding case of contact P of motion graph provide references for optimizing the design or reverse engineering double-break circuit breaker contacts institutions.