一种长寿命新型全亮半亮指示灯的设计与实现  

Design and Implementation of a Long Lifetime Full or Half Bright Indicator Light

作　　者：聂卫 官辉 肖磊全 NIE Wei;GUAN Hui;XIAO Leiquan(CNNC Nuclear Power Operations Management Co.,Ltd.,Haiyan 314300,China)

机构地区：[1]中核核电运行管理有限公司,浙江海盐314300

出　　处：《电工技术》2025年第3期180-182,187,共4页Electric Engineering

摘　　要：全亮半亮指示灯在核电厂扮演着重要的角色,但因其发热量大、使用寿命较短,故增加了运维成本。针对现状介绍了一种长寿命新型全亮半亮指示灯的设计与实现过程。首先列出了技术指标,并对现用的全亮半亮指示灯进行缺陷分析,发现影响其寿命的原因为结构缺陷和电路设计缺陷。通过新技术、新方法将全亮半亮指示灯结构设计成3块集成电路板,其结构简洁、安全性更高;电路上使用了DC/DC降压模式,具有发热量小、转换效率高的优点;也重新对LED灯进行设计选型,使其工作温度范围宽、稳定性更高。通过测试、鉴定,产品使用寿命由原来的约3年延长至9年以上,均实现了预期目标。Full or half bright indicator lights play an important role in nuclear power plants,but their higher heat generation and shorter lifetime increases operation and maintenance costs.In response to the current situation,this article introduces the design and implementation process of a long lifetime full or half bright indicator light.Firstly,the technical indicators were listed,and after analysis,the reasons that affect their lifetime were structural and circuit design defects.By using new technologies and methods,the structure is designed into three integrated circuit boards,which have a simple structure and higher safety;the circuit uses a DC/DC voltage reduction mode,which reduces heat generation and improves conversion efficiency;LED has also been redesigned and selected,with a wide operating temperature range and higher stability.Through products testing and identification,the expected indicators have been met.The lifetime has been extended from about 3 years to over 9 years,and reached the expected goal.

关 键 词：全亮半亮指示灯 结构设计 电路设计 DC/DC降压模式 

分 类 号：TM623[电气工程—电力系统及自动化]