防雾蒸汽触电灯具的自动控制电路设计  

Automatic Control Design of Anti Fog Steam Electric Shock Lamps

作　　者：王金柱 刘磊 WANG Jinzhu;LIU Lei(Shandong Xucheng Lighting Science and Technology Co,.Ltd.,Linyi 276000,China)

机构地区：[1]山东旭程照明科技有限公司,山东临沂276000

出　　处：《中国照明电器》2020年第9期23-25,共3页China Light & Lighting

摘　　要：针对常见LED灯具结构,提出一种防止因雾汽蒸汽进入灯具而引起触电的自动保护控制电路。原理为信号探头检测雾汽蒸汽信号反馈给信号处理组件,输出控制信号控制可控硅导通与关断,从而控制LED负载切断电源。当灯具内的雾汽蒸汽现象排除后灯具自动恢复正常工作。该控制电路适用于公路、停车场、庭院、浴室、厨卫及食品蒸烤加工等各场所的照明灯具,有效防止触电,使灯具更加安全可靠。Based on the common structure of LED lamps,an automatic protection circuit against electric shock caused by the entering of fog and steam is proposed.The principle is that the signal probe detects the fog and steam signal,which is fed back to the signal processing module to output signal to control the thyristor,so that the LED load switches off.When the fog and steam phenomenon in the lamp is eliminated,the lamp automatically returns to normal operation.This design is suitable for various lighting lamps in highway,car park,courtyard,bathroom,kitchen,food steaming and baking workshop,etc.,can effectively prevent electric shock and make lamps more safe and reliable.

关 键 词：防触电保护 雾蒸汽触电 信号探头 自动控制 

分 类 号：TM923.34[电气工程—电力电子与电力传动]