电磁继电器释放过程特性参数的影响因素及其改善措施

Influenced Factor and Improved Measure of Idiocratic Parameter during the Releasing Process of Electromagnetic Relay

电磁继电器是电子系统中不可缺少的电子元器件。电磁继电器释放过程特性参数直接影响电子系统的可靠性 ,如过大的线圈反向电压会对整个电子系统造成严重干扰 ,甚至会损坏其它器件。文章从电磁继电器释放过程的数学模型出发 ,分析与研究了电磁继电器释放时间和最大反向电压的影响因素 ,在比较传统的限制反向电压电路的基础上 ,提出了在继电器使用过程中减小释放时间和反向电压的方法和措施。

Electromagnetic relay is an indispensable electronic element of electronic system. Idiocratic parameter during the releasing process of electromagnetic relay indirectly influences the reliability of electronic system,for example,great reversed voltage of loop will disturb the whole electronic system badly,and even mangle other elements. The paper begins with the mathematic model of the releasing process of electromagnetic relay,then the releasing time of electromagnetic relay and the influenced factor of the reversed voltage maximal are analyzed and studied,and then in the base of more traditional circuit that restricts the reversed voltage,the measure which is used to minish the releasing time and the reversed voltage in the process of using the relay is brought forward.