A convenient welding lead end structure assembly and high-voltage DC contactor

By designing a lead-out terminal structure with a convex hull structure and rounded corners to reduce the electric field strength, the problem of insufficient welding in high-voltage DC contactors was solved, achieving high reliability and low cost welding results and extending contact life.

CN224458028UActive Publication Date: 2026-07-03ZHEJIANG MINGHUI INTELLIGENT ELECTRIC CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHEJIANG MINGHUI INTELLIGENT ELECTRIC CO LTD
Filing Date
2025-07-17
Publication Date
2026-07-03

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Abstract

The utility model provides a kind of convenient welding's leading-out end structure assembly and high-voltage direct current contactor, it is related to high-voltage direct current contactor technical field, including right leading-out end, left leading-out end and insulating platform, right leading-out end and left leading-out end are all provided with convex hull structure, hole body for accommodating convex hull structure is provided on insulating platform, convex hull structure includes step surface, side plane and the through -hole in the middle part of step surface, step surface is used to provide welding position, the height of step surface is at least flush with the surface of insulating platform. By setting convex hull structure, welding surface is lifted, so as to avoid insulating platform when welding, increase welding space, avoid the problem that insulating platform is scalded when welding, flowing solder can enter gap and contact with side plane when welding, so that the welding area formed by step surface, side plane is larger, improve the area of solder and convex hull structure contact to improve solder filling rate, reach the effect of resistance to false welding, improve the mechanical strength of welding position.
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