电器与能效管理技术 ›› 2025, Vol. 0 ›› Issue (8): 39-44.doi: 10.16628/j.cnki.2095-8188.2025.08.006

• 电器设计与探讨 • 上一篇    下一篇

热过载继电器快校系统的研究

于强1, 李新叶2, 赵莹莹1, 郑天云1, 周焰华1, 吴思佩1   

  1. 1.德力西电气有限公司, 浙江 温州 325604
    2.德力西电气上海研发中心, 上海 201803
  • 收稿日期:2025-04-21 出版日期:2025-08-30 发布日期:2025-09-26
  • 作者简介:于 强(1985—),男,工程师,主要从事低压电器的研发和制造。|李新叶(1975—),男,高级工程师,主要从事低压电器的研发和制造。|赵莹莹(1987—),女,工程师,主要从事低压电器的研发和制造。

Research on Quick Calibration System of Thermal Overload Relay

YU Qiang1, LI Xinye2, ZHAO Yingying1, ZHENG Tianyun1, ZHOU Yanhua1, WU Sipei1   

  1. 1. Delixi Electric Co., Ltd., Wenzhou 325604, China
    2. Delixi Electric Shanghai R&D Center, Shanghai 201803, China
  • Received:2025-04-21 Online:2025-08-30 Published:2025-09-26

摘要:

针对热过载继电器电校效率和一致性低的问题,提出一种快速电校的方案。采用等效阶梯电流的方式,第1阶梯大电流使双金属片快速弯曲,第2阶梯电流时双金属片弯曲趋于稳定,消除热惯性,第3阶梯电流结束时双金属片到达预设位置,在双金属片弯曲相对稳定时拧跳产品。另外,从元件的一致性、装配工艺的一致性和快速电校的参数等方面,给定对应的验证方法和经验参数。所提方案既能大幅提升生产效率,又能有效保障零部件和工艺一致性,保证了产品性能的稳定。

关键词: 热过载继电器, 快速电校, 阶梯电流, 双金属片

Abstract:

A quick electrical calibration scheme is proposed to address the low efficiency and consistency of thermal overload relay calibration.The equivalent step ped current method is adopted.The first-step high current enables the bimetal strip to bend quickly.The second-step current tends to stabilize the bend of bimetal strip to eliminate the thermal inertia.When the third-step current ends, the bimetal strip reaches the preset position and maintains for a short while, then the product will be twisted to trip.In addition, corresponding validation and empirical parameters are provided in terms of component consistency, assembly process consistency, and parameters for quick electrical calibration.The proposed scheme can not only significantly improves production efficiency, but also effectively ensurs the consistency of components and processes, guaranteeing the stability of product performance.

Key words: thermal overload relay, quick electrical calibration, step current, bimetal strip

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