A traffic signal lamp and a traffic signal lamp system capable of automatically converting display shapes

By dividing traffic lights into left arrows and other light units, and using relay modules to automatically switch the display shape, the cumbersome operation problem of simultaneously allowing straight and left turns is solved, achieving automatic switching and compliance with national standards, and improving traffic efficiency.

CN224417389UActive Publication Date: 2026-06-26HEBEI NORTH ZHONGCHENG TECHNOLOGY CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HEBEI NORTH ZHONGCHENG TECHNOLOGY CO LTD
Filing Date
2025-08-20
Publication Date
2026-06-26

AI Technical Summary

Technical Problem

When existing traffic lights allow both straight and left turns to proceed simultaneously, switching the left-turn arrow light to a circular light is cumbersome, does not reduce manual operation, may not comply with national standards, and poses a safety hazard.

Method used

The traffic light is divided into a first LED unit in the shape of a left arrow and other LED units. The display shape is automatically switched through a relay control module, so that when the left turn and straight traffic lights are lit at the same time, they automatically switch to a circle without any manual intervention.

Benefits of technology

It enables automatic switching of traffic lights when both straight-ahead and left-turn traffic are allowed simultaneously, improving traffic efficiency, meeting national standards, reducing manual operation, and avoiding safety hazards.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model is suitable for signal lamp device technical field provides a kind of traffic signal lamp of automatic conversion display shape. The traffic signal lamp includes: at least one circular signal lamp and control module, in circular signal lamp, the lamp bead in first lamp bead unit constitutes left arrow shape, and the positive pole of every lamp bead in first lamp bead unit is used to connect with power supply positive pole, negative pole ground connection;Second lamp bead unit is the lamp bead except first lamp bead unit in circular signal lamp, and the positive pole of every lamp bead in second lamp bead unit is used to connect with power supply positive pole, negative pole ground connection through the normally open contact of relay unit;Control module is configured as according to preset trigger signal control relay unit's coil energization, preset trigger signal is the signal indicating straight signal lamp and left turn signal lamp simultaneous lighting signal. The utility model can automatically switch traffic signal lamp from left arrow shape to circle according to preset trigger signal, to help improve traffic efficiency and meet national standard requirements.
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