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介绍了一种矿用道岔控制器的按钮电路,通过对现有按钮控制方式的隐患分析与电路改进设计,阐述了其存在隐患的设计对策。通过对按钮线路绝缘阻抗特性分析,结合线路绝缘检测技术,设计实现了具有绝缘检测功能的按钮线路漏电监督电路,解决了因按钮线路漏电引起的误动作驱动,从而实现了道岔控制器的安全可靠工作。
This paper introduces a button circuit of a switch for mine turnout. Through the analysis of the hidden troubles and the circuit design of the existing pushbutton control method, the design countermeasures of its hidden troubles are expounded. Through the analysis of the characteristics of the insulation resistance of the button circuit and the line insulation detection technology, a leakage current monitoring circuit of the button circuit with the insulation detection function is designed and realized, and the malfunction driven by the leakage of the button circuit is solved, so that the switch controller is safe and reliable jobs.