A multiple unit vehicle exterior lighting system

By introducing a locking control structure into the external lighting system of the EMU vehicle, stable connection and convenient unlocking under vibration conditions are achieved, solving the problems of unstable connection and cumbersome operation in the existing technology, and improving the reliability and maintenance efficiency of the system.

CN224551482UActive Publication Date: 2026-07-24CHANGZHOU SAIER TRAFFIC EQUIP CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHANGZHOU SAIER TRAFFIC EQUIP CO LTD
Filing Date
2025-10-09
Publication Date
2026-07-24

AI Technical Summary

Technical Problem

The existing plug-in structure of the external lighting system of high-speed trains is unstable under vibration and impact conditions, and the unlocking operation is cumbersome, which affects the reliability and maintenance efficiency of the system.

Method used

The device employs a locking mechanism structure, including a first connecting plate, a second connecting plate, an insertion protrusion, a locking disc, a rotating pin, and a return spring. Through the automatic repositioning of the locking disc during insertion and the reliable locking after insertion, combined with a manual unlocking method, it achieves stable connection and convenient operation.

Benefits of technology

It improves the stability and reliability of the connection, ensures the safety of the electrical connection in a vibrating environment, and simplifies the maintenance and emergency handling process.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224551482U_ABST
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Abstract

The utility model discloses a kind of EMU vehicle exterior lighting systems, including controller main body, male joint, female connector seat and lock control. The lock control includes first web and second web, respectively fixed in female connector seat and male joint surface, and the web is equipped with plug convex part, and lock petal is rotatably installed at plug convex part, and lock petal is connected with linkage lever by rotating pin petal, and reset force is provided by reset spring. In the process of plug-in, lock petal is deflected under the guidance of plug convex part, and smooth insertion is realized;After plug-in is completed, lock petal is reset to form locking under the action of reset spring, to prevent loosening;When it is necessary to be unlocked, lock petal deflection can be manually driven by rotating pin petal end rotating ear to complete separation.The utility model realizes the automatic deflection, reliable locking and convenient unlocking of EMU vehicle exterior lighting system plug-in, ensures the connection stability and maintenance convenience in the process of vehicle operation.
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