LED testing device for railway

By designing a portable LED testing device and integrating testing units, the problems of short lifespan of traditional light sources and performance testing of LED signal lights have been solved, achieving efficient and accurate LED testing, reducing maintenance costs, and improving train safety.

CN224553455UActive Publication Date: 2026-07-24HEBEI YUNHAN TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202521581957.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-07-28
Publication Date
2026-07-24
Estimated Expiration
2035-07-28

AI Technical Summary

Technical Problem

In existing railway signal lights, traditional light sources have short lifespans and are frequently damaged, affecting train safety and maintenance costs. Furthermore, LED signal lights are susceptible to performance degradation in complex environments, and there is a lack of effective testing methods.

Method used

Design a portable LED testing device that integrates a testing unit, including a power input terminal, an AC regulated power supply, a voltage regulator, a railway signal lighting unit, and a test lamp holder. It can test the performance of LEDs under different voltage conditions and has multiple voltage adjustment and monitoring functions.

Benefits of technology

It enables high-precision and convenient testing of LED lights, reduces maintenance costs, improves the safety and efficiency of train operation, and adapts to the testing needs of LED lights of different models and manufacturers.

✦ Generated by Eureka AI based on patent content.
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Abstract

The utility model discloses an LED testing device for a railway. A testing unit is integrated in a shell; the test unit comprises a power supply input terminal used for accessing alternating current, an alternating current voltage-stabilized power supply used for converting the input alternating current into stable alternating current, a voltage regulator used for regulating the output voltage of the alternating current voltage-stabilized power supply, and a railway signal lighting unit used for converting the output voltage of the voltage regulator into three-gear voltage. The test lamp holder is used for mounting an LED lamp; the input side of the alternating-current voltage-stabilized power supply is connected with the power supply input terminal, the output side of the voltage-stabilized power supply is connected to the input end of the railway signal lighting unit through the voltage regulator, and the output end of the railway signal lighting unit is respectively connected to the main filament pin, the auxiliary filament pin and the public pin of the test lamp holder, so that to-be-tested LED lamps of different models and manufacturers can be tested. Performance indexes of the to-be-tested LED lamp in primary and secondary different voltage states of the railway signal lighting unit can be detected.
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