目的 研究和开发一种具有绝缘子和避雷器双重功能的新型防雷绝缘子。方法 应用TRIZ理论在线路避雷器的基础上进行改进研究，通过采用功能分析、因果链分析、矛盾分析等工具进行创新设计。结果 运用TRIZ创新方法产生了7种封装结构件的力学性能增强方案，2种封装结构设计方案和1种集成绝缘子和避雷器双重功能的设计方案，综合筛选出了1个最优的防雷绝缘子的设计方案。结论 所设计的新型防雷绝缘子仅通过优化封装结构设计便可集成绝缘子和避雷器的功能，可以在线路正常运行工况下发挥绝缘子作用，而在过电压状态下激活避雷器立即将电压钳位，从而保护输配线线路免遭破坏;设计方案简单有效，对提高输配电防雷可靠性，降低安装、运维成本具有重要意义。

The work aims to research and develop a new type of lightning protection insulators with dual functions of insulators and lightning arresters. Based on the application of the TRIZ theory, improvement research was carried out on line lightning arresters. Innovative design was carried out using tools such as functional analysis, causal chain analysis, and contradiction analysis. A total of 7 mechanical performance enhancement schemes for packaging structural components, 2 packaging structural design schemes, and 1 design scheme that integrated the dual functions of insulators and lightning arresters were generated. The optimal design scheme for lightning arrester insulators was comprehensively screened. The newly designed lightning protection insulator can integrate the functions of insulators and lightning arresters by optimizing the packaging structure design, and play the role of insulators under normal operating conditions of the line. In case of overvoltage, activating the lightning arrester immediately clamps the voltage, thereby protecting the transmission line from damage. The experimental results show that the design scheme is simple and effective, which is of great significance for improving the reliability of lightning protection in power transmission and distribution, and reducing installation and operation costs.