Railway LED signal lamp control circuit with light flux monitoring control function

CN224697935UActive Publication Date: 2026-08-28ZHEJIANG YOUCHENG RAILWAY EQUIP CO LTD
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Patent Information

Application Number
CN202521904395.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-09-04
Publication Date
2026-08-28
Estimated Expiration
2035-09-04

AI Technical Summary

Technical Problem

但是，在2006年前后，记得西北曾经发生LED光源故障而造成信号升级，造成铁道部要求各路局LED光源全线下道恢复为原来的卤丝灯泡，损失数亿，取消LED光源认证，自2008年至今的铁路信号维规上均没有LED内容，至今约20年来铁路总公司均始终不认同LED光源的上道使用

Benefits of technology

[0016]本实用新型的有益效果是：该具有光通量监测控制功能的铁路LED信号灯控制电路中，由光通量检测控制模拟开关电路、主副灯状态监控模拟开关电路和电压控制模拟开关电路串联在继电器的吸起线圈中来共同控制的，共同构成了一个完整而周全的三级安全防护匹配负载控制电路系统。该三级安全防护控制系统中，任一环节检测到的不正常情况均能立即切断匹配负载，以确保室内信号点灯继电器可靠落下。

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Abstract

The utility model discloses a railway LED signal lamp control circuit with light flux monitoring control function, main LED lighting circuit, vice LED lighting circuit, main control module, main vice match synchronous distribution circuit, matching load and matching load control circuit, and main control module is connected with main LED lighting circuit, vice LED lighting circuit, main vice match synchronous distribution circuit and matching load control circuit electricity respectively, matching load control circuit includes main vice lamp state monitoring analog switch circuit, light flux feedback detection collector and light flux detection control analog switch circuit, in the utility model, the common control of light flux detection control analog switch circuit, main vice lamp state monitoring analog switch circuit and voltage control analog switch circuit are connected in the attracting coil of relay in series, and a complete and comprehensive three -level safety protection matching load control circuit system is jointly constituted.
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