密封电磁继电器内部稳态温度场分析方法的探讨  

Discussion on Analytical Method for Inner Steady Temperature Field of Hermetically Sealed Electromagnetic Relay

作　　者：任万滨[1] 崔黎 翟国富[1] 

机构地区：[1]哈尔滨工业大学军用电器研究所,黑龙江哈尔滨150001 [2]桂林航天电子有限公司,广西桂林541002

出　　处：《机电元件》2006年第3期3-7,11,共6页Electromechanical Components

摘　　要：密封电磁继电器耐受恶劣工作环境能力突出,在航天工程等可靠性要求高的领域广泛应用。其内部稳态温度场分析是产品可靠性设计中的关键环节之一。文章说明了应用有限元法进行分析计算的可行性,并应用热路法建立了其内部复杂的热传递路径,最后探讨了包括模型建立、热载荷计算、边界条件施加等采用有限元分析的关键技术,为下一步形成密封电磁继电器的热分析方法奠定了基础。Hermetically sealed structure is the optimal style to protect electromagnetic relay （EMR） from formidable working environment. So it has been widely used in the field of space engineering with high reliability demand. Inner steady temperature field analysis is the key part of product reliability design. The feasibility of analysis by using finite element method was illustrated in this paper, and the complex inner heat transfer path was built by applying thermal circuit graph. In the end the key techniques of using finite element method, including modeling, thermal load calculating and boundary condition determining, were discussed in detail. So it was valuable to establish thermal analytical method for hermetically sealed EMR.

关 键 词：密封电磁继电器 可靠性设计 稳态温度场 热路图 有限元法 

分 类 号：TM58[电气工程—电器]