一种用于配电开关控制设备的一二次融合柱上断路器

By introducing polygonal limit posts and linkage structures into the circuit breaker, combined with electromagnet drive, the problem of accidental closing was solved, and reliable locking and precise control of the circuit breaker were achieved, improving the safety and applicability of the equipment.

CN121282046BActive Publication Date: 2026-07-17BOCHUANG ELECTRIC CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
BOCHUANG ELECTRIC CO LTD
Filing Date
2025-11-13
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

The existing primary and secondary integrated pole-mounted circuit breakers lack limit components, which makes it easy for staff to accidentally touch the isolating switch or operating lever during maintenance, causing accidental closing, affecting maintenance work and personal safety, and posing risks of equipment damage and line faults.

Method used

A linkage structure comprising a polygonal limit post, a limit sleeve, a rack and pinion bearing component, and a connecting rod was designed. Combined with a power mechanism of an electromagnet and a return spring, the reliable locking and precise control of the knife switch assembly are achieved through gear and rack meshing and parallelogram linkage, thus avoiding accidental closing.

Benefits of technology

It effectively avoids accidental closing caused by accidental operation of the control lever, ensures maintenance safety, improves equipment operating efficiency and reliability, adapts to the needs of automated or manual operation in different scenarios, and extends equipment life.

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Abstract

本发明公开一种配电开关控制设备用一二次融合柱上断路器,包括底座、断路器本体、刀闸组件、转动轴、隔离拉杆、拐臂及底座内的动力轴与驱动机构。驱动机构含齿轮、齿条、齿条承载部件,齿条承载部件经滑动轴与U型支架配合实现稳定滑动。底座设多边形限位柱一、限位套筒,动力轴设多边形限位柱二,齿条承载部件与限位套筒经连杆一联动,可使限位套筒同时套接两限位柱形成锁定,避免误合闸;齿条空程区配合限位柱一内耐磨件,确保动力轴分闸后锁定。动力机构有两种:电磁铁与复位弹簧组合适配自动化场景,输入转轴与摇把配合便于手动操作。动力轴与转动轴经平行四边形联动机构平稳传动,联动机构处滑动套与防护罩可提升稳定性、延长设备寿命。
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