Isolating switch with insulation protection connecting sleeve

By designing a structure with an insulating protection connection sleeve in the isolating switch, using an insulating protective cover made of PC and an insulating cover made of silicone rubber, the problem of insufficient insulation performance of traditional isolating switches is solved, and the high insulation performance and mechanical strength is improved, which reduces the equipment volume and improves safety and reliability.

CN222690574UActive Publication Date: 2025-03-28HUBEI WANGAN TECH
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Patent Information

Application Number
CN202420581811.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-03-25
Publication Date
2025-03-28
Estimated Expiration
2034-03-25

AI Technical Summary

Technical Problem

Traditional isolation switches lack insulation performance in high voltage and high current environments, making it difficult to meet the needs of high insulation performance, reduced phase spacing, high strength connections and long mechanical life.

Method used

An isolating switch with an insulating protective connection sleeve is designed, using an insulating protective cover made of PC and an insulating cover made of silicone rubber, which closely wraps the blade of the isolation knife switch and is fixed by bolt connection to ensure that the insulating protective cover and bolt fasteners are completely sealed.

Benefits of technology

The interphase and ground insulation protection of the blade is achieved, the insulation performance and mechanical strength are improved, the volume of the switching equipment is reduced, the space utilization is improved, and the safety and reliability of the switch are enhanced.

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Abstract

The utility model relates to an isolating switch with an insulation protection connecting sleeve, which comprises a rack, three groups of isolating knife switches are arranged in the rack, the three groups of isolating knife switches respectively correspond to an A phase, a B phase and a C phase, each group of isolating knife switch comprises two blades, the two blades are connected and fixed through bolts, an insulation protection sleeve is sleeved outside each group of isolating knife switch, and the insulation protection sleeve is sleeved outside the rack. The insulating protective sleeve is provided with an opening at the contact end of the isolation switch and the static contact, and the exposed part of the bolt is provided with an insulating cover. According to the utility model, the interphase insulation performance is improved, and the switch volume is reduced.
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