Closed disconnecting switch with ice breaking function

By combining a closed design with a rotating moving contact assembly, the problem of ice breaking difficulties caused by excessive ice buildup on disconnect switches has been solved, enabling normal opening and closing functions under icing conditions.

CN115602485BActive Publication Date: 2026-06-16CHONGQING DEEPU ELECTRIC
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
CHONGQING DEEPU ELECTRIC
Filing Date
2022-09-16
Publication Date
2026-06-16

AI Technical Summary

⚠Technical Problem

Existing disconnect switches are difficult to break ice effectively under icing conditions, affecting their normal opening and closing functions.

⚗Method used

A closed disconnect switch is designed, which forms a sealed structure by the cooperation of the second insulating shell and the first insulating shell to reduce the ice thickness, and uses a rotating moving contact blade assembly to cut the ice and improve the ice breaking capability.

🎯Benefits of technology

It effectively reduces the ice thickness at the junction of the moving contact assembly and the stationary contact assembly, and improves the opening and closing capability of the disconnecting switch under icing conditions by cutting the ice by rotating the moving contact assembly.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application provides a closed disconnecting switch with ice breaking function, which comprises a first static contact assembly, a second static contact assembly and a movable contact blade assembly connecting the first static contact assembly and the second static contact assembly. One end of the movable contact blade assembly is rotatably connected with the first static contact assembly, and the other end of the movable contact blade assembly can be separated from or contacted with the second static contact assembly, so as to realize the opening and closing of the disconnecting switch. The closed disconnecting switch with ice breaking function reduces the ice thickness of the joint between the movable contact blade assembly and the first static contact assembly through the sealing design. On the other hand, the opening and closing function is realized by the rotation of the movable contact blade assembly around the first static contact assembly, and the ice at the joint between the first and second insulating housings is cut by the knife edge formed by the edge of the second insulating housing used for cooperating with the first insulating housing, so that the ice breaking capacity is improved.
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