Fuse and method for manufacturing the same

By using prefabricated arc protectors and perforated designs on the fuse insert, the problem of long assembly time and high damage risk is solved, enabling faster assembly and higher reliability.

CN112331539BActive Publication Date: 2025-07-01MERSEN FRANCE SB
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Patent Information

Application Number
CN202011407956.5
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Priority Date
2020-07-29
Filing Date
2020-12-03
Publication Date
2025-07-01
Estimated Expiration
2040-12-03

AI Technical Summary

Technical Problem

The existing fuses have problems such as long time consumption and high damage risk during assembly, and the geometry of traditional arc protectors is inaccurate, which affects production efficiency and reliability.

Method used

An arc protector made of prefabricated elastic material is used, and an adhesive layer is fixed to the fuse insertion sheet, and perforations are provided on the insertion sheet to form ventilation holes, and a frame and gasket are used to limit the movement of the insertion sheet, thereby improving assembly efficiency and protection effect.

Benefits of technology

It shortens the cut-off time of the fuse, reduces the risk of damage during assembly, and improves production efficiency and fuse reliability.

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Abstract

The present invention discloses a fuse, comprising at least one fuse insert (4) formed in a sheet shape, having two opposite main surfaces along which its longitudinal axis (A2) extends, each fuse insert including a portion in which a reduced section (46A) is formed, the reduced section (46A) defining a transverse plane (P4) transverse to the fuse insert. The fuse further comprises a pair (60) of arc protectors (6) made of a prefabricated elastic material and interconnected, each in the same pair of arc protectors being positioned opposite to each other on the respective main surfaces of the same fuse insert. For at least the first pair (60) of arc protectors (6), an adhesive layer (72) is inserted between the fuse insert (4) and the inner surface (66) of this pair of arc protectors (6), the inner surface facing one of the main surfaces of the fuse insert, so as to fix each arc protector to the fuse insert. The arc protector according to the present invention is easy to assemble onto the fuse insert.
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Citation Information

Patent Citations

  • Arc suppressor for fusible elements

    US20150294828A1