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.The steady temperature field analysis of contact system is the key part of product reliability design.In this paper,a mechanical,electrical and thermal coupled-field simulation analysis of contact system of sealed electromagnetic relays is carried out through finite element software,after mathema...
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。其接触系统的稳态温度场分析是产品可靠性设计中的关键环节之一。本文在建立了接触半径计算和热电耦合计算的数学模型的基础上,通过有限元软件应用机-电-热耦合分析的方法对接触系统进行仿真分析,实现了触点接触电阻引起的发热量的精确计算,得到了接触系统的热场分布及电流密度分布的准确计算结果,为接触系统的可靠性优化设计打下了坚实的基础。作者: sktpcb 时间: 2012-10-16 10:38
