一种直插机械式空开辅助接点抖动指示器

By designing a direct-insertion mechanical circuit breaker auxiliary contact jitter indicator, a magnetic coil and spring structure are used to capture and lock the instantaneous jitter of the circuit breaker auxiliary contact. This solves the problem of difficulty in capturing and locating jitter signals in existing technologies, realizes reliable fault branch location and early warning, and reduces systemic risks.

CN224518913UActive Publication Date: 2026-07-17CHINA YANGTZE POWER

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHINA YANGTZE POWER
Filing Date
2025-07-29
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing technology cannot effectively capture the instantaneous jitter signal of the auxiliary contacts of the air switch in the parallel branch, causing the abnormal information to disappear immediately after recovery. This makes it difficult to detect potential hidden dangers in the parallel system in a timely manner when a fault occurs, and there is a lack of evidence for post-incident investigation, which poses a risk of unplanned downtime.

Method used

Design a direct-plug mechanical circuit breaker auxiliary contact jitter indicator. Utilize a magnetic coil and spring structure to trigger the switching of the indicator window state at the moment of contact jitter, and maintain the abnormal state mark through the mechanical interference of the reset lever, providing continuous physical positioning basis.

Benefits of technology

It achieves reliable capture and status locking of instantaneous jitter, provides visualized fault branch location, shortens fault investigation time, blocks the accumulation path of hidden dangers, and reduces the probability of unplanned downtime.

✦ Generated by Eureka AI based on patent content.

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Abstract

本实用新型公开了一种直插机械式空开辅助接点抖动指示器,包括外壳、设于外壳内部的第一弹簧、衔铁、磁感线圈、第二弹簧、复位拨片,以及用于插入空开常闭辅助接点的直插式进线端;磁感线圈输入端与直插式进线端电连接;衔铁设于磁感线圈的轴向侧,衔铁一侧连接第一弹簧,另一侧抵接复位拨片;还包括设于外壳外部的用于外接回路引线的出线端、螺丝;出线端与磁感线圈输出端电连接;螺丝贯穿外壳内外侧,其内侧螺头与出线端电连接。本实用新型可靠捕捉并联支路空气开关辅助接点的瞬时抖动信号,并在信号复归后持续保持异常指示与定位信息,解决现有技术中存在的短时异常无法检测、隐患支路难以追溯的问题。
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