Excitation fuse with melt structure
By introducing insulating isolation parts into the melt structure to isolate and cool the arc, the problem of poor insulation performance at the melt break is solved, the insulation and voltage resistance of the excitation fuse are improved, and the reliability and stability of the breaking are ensured.
CN120545150APending Publication Date: 2025-08-26XIAN ZHONGRONG ELECTRIC CO LTD
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Patent Information
- Application Number
- CN202510963328.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-14
- Publication Date
- 2025-08-26
AI Technical Summary
Technical Problem
When the existing excitation fuse is disconnected, the insulation performance at the melt break is poor, and arc arcing or breakdown is prone to occur, resulting in unstable insulation after breakdown and risk of leakage current and breakdown.
Method used
An insulating spacer is provided in the melt structure, and several chambers are established in the arc extinguishing chamber through the insulating spacer to isolate and cool the arc, improving the insulation performance and breaking ability after breaking.
Benefits of technology
Effectively isolating and cooling the arc improves the insulation and voltage resistance of the fuse, ensures the reliability and stability of the breakage, and reduces the risk of arc breakdown.
✦ Generated by Eureka AI based on patent content.
Abstract
An excitation fuse with a melt structure comprises a shell, an excitation source, at least one conducting bar and the melt structure. A first cavity and a second cavity filled with an arc extinguishing medium are arranged in the shell; the cavity where the driving force releasing end of the excitation source is located is communicated with the first cavity, and the conducting bar penetrates through the shell and the first cavity; the melt structure is arranged at least partially in the arc extinguishing medium in the second cavity or penetrates through the arc extinguishing medium in the second cavity; the fuse body structure comprises a fuse body connected with the conducting bar in parallel and insulation isolation pieces, at least one insulation isolation piece is arranged on the fuse body in the current direction, the fuse body penetrates through the insulation isolation pieces, and the insulation isolation pieces are used for partially or completely isolating electric arcs at fractures of the fuse body and releasing gas and cooling the electric arcs at the high temperature of the electric arcs. The excitation fuse uses a melt structure, so that the breaking performance of the fuse and the insulating performance and the voltage resistance after breaking can be improved.
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