An alternating current contactor
CN224696705UActive Publication Date: 2026-08-28ZHEJIANG TENGEN ELECTRIC
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Patent Information
- Application Number
- CN202522265921.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-27
- Publication Date
- 2026-08-28
- Estimated Expiration
- 2035-10-27
AI Technical Summary
Technical Problem
[0003]而交流接触器是由动静触头完成接通、分断任务的，温升最高的位置为动静触点附近，大多静触头安装在基座安装槽里，其中中大容量接触器的静触头接触板与壳体固定一般为螺钉固定，接触配合处主要为大平面贴合接触，散热效果差，特别是大电流的短时耐受验证时，壳体与静触头接触板接触处容易熔化变形，影响开距超程
Benefits of technology
[0014]本实用新型的有益效果：利用散热槽的设计，增加静触头触点附近底部的散热空间，降低触头温升，增加短时耐受能力，且利用散热槽底部设计，可以隔断与动铁芯所处的空间的连通，进而防止相间电弧短路以及进入铁芯导致短路爆炸，同时能够提升产品性能。
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Abstract
An alternating current contactor includes a base provided with a plurality of phase wire channels, and each phase wire channel is symmetrically provided with a mounting groove for mounting a static contact, the bottom of the mounting groove is provided with a heat dissipation groove, and one end of the heat dissipation groove is provided with an opening. By using the design of the heat dissipation groove, the heat dissipation space of the bottom near the contact point of the static contact is increased, the temperature rise of the contact is reduced, the short-time withstand capacity is increased, and by using the design of the bottom of the heat dissipation groove, the communication with the space where the moving iron core is located can be blocked, thereby preventing the short circuit of the arc between the phases and the short circuit explosion caused by entering the iron core, and the performance of the product can be improved.
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