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Fuse for high-voltage fuse

A high-voltage fuse, fuse technology, applied in emergency protection devices, circuits, electrical components and other directions, can solve problems such as difficulty

Pending Publication Date: 2022-05-17
爱那其斯株式会社
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the fuse for high voltage fuse in Patent Document 1 fixes the arc extinguishing tube to the head metal part by bonding, so it is difficult to set and control the pressure at which the arc extinguishing tube is detached from the head metal part

Method used

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  • Fuse for high-voltage fuse
  • Fuse for high-voltage fuse
  • Fuse for high-voltage fuse

Examples

Experimental program
Comparison scheme
Effect test

no. 2 Embodiment

[0063] refer to Figure 9 , the fuse 112 is explained. The fuse 112 is a modification of the fuse 12 , and the structure of the arc extinguishing tube 185 is different from that of the arc extinguishing tube 85 used for the fuse 12 . Regarding the fuse 112 , the same reference numerals as those assigned to the fuse 12 are assigned to the same components as the fuse 12 , and descriptions thereof will be omitted.

[0064] The arc extinguishing pipe 185 includes a small diameter portion 185a and a large diameter portion 185b. The small diameter portion 185a is provided at the end portion on the side of the head portion 70a. The small-diameter portion 185a is formed by inserting and fixing a metal cylindrical body 186 to the end (upper end portion) of the large-diameter portion 185b. That is, a first cylindrical body (large-diameter portion 185b ) whose inner diameter is constant from one end to the other end, and a second cylindrical body (tube) whose axial length is shorter t...

no. 3 Embodiment

[0066] refer to Figure 10 , the fuse 212 is described. The fuse 212 is a modification of the fuses 12 and 112 , and the shape of the arc extinguishing tube 285 is different from that of the arc extinguishing tubes 85 and 185 used in the fuses 12 and 112 . Regarding the fuse 212, the same reference numerals as those assigned to the fuses 12 and 112 are assigned to the same components as those of the fuses 12 and 112, and the description thereof will be omitted.

[0067]The arc extinguishing pipe 285 includes a small diameter portion 285a and a large diameter portion 285b. The small diameter portion 285a is provided at the end portion on the side of the head portion 70a. The small diameter part 285a is formed by inserting and fixing the metal cylindrical body 186 to the end (upper end part) of the large diameter part 285b. That is, the arc extinguishing tube 285 is formed by a first cylindrical body (large diameter portion 285b ) and a second cylindrical body (the cylindrica...

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PUM

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Abstract

The invention provides a novel fuse for a high-voltage fuse. The fuse for the high-voltage fuse comprises a head metal piece, a lower connecting line, a fusible connecting line connected between the head metal piece and the lower connecting line, and a cylindrical arc extinguishing tube surrounding the fusible connecting line. The head fitting has a head top portion and a columnar portion. And the head top part is positioned outside the arc extinguishing tube. The columnar portion extends from the head top portion towards the inside of the arc extinguishing tube. An annular internal pressure adjustment member is fixed to the columnar portion in the arc extinguishing tube, and the arc extinguishing tube is fixed to the head fitting by means of the internal pressure adjustment member.

Description

technical field [0001] This specification discloses a technology related to a fuse for a high-voltage fuse. Background technique [0002] In order to prevent overcurrent from flowing through high-voltage equipment such as transformers, high-voltage fuses are installed between distribution lines and high-voltage equipment. Patent Document 1 discloses a high-voltage fuse (cylindrical disconnect switch) including: an upper electrode connected to a power distribution line, a lower electrode connected to a wiring on the high-voltage equipment side, and a fuse arranged between the upper electrode and the lower electrode. Fuses for high voltage fuses between electrodes. The fuse for a high-voltage fuse in Patent Document 1 includes: a head metal fitting connected to an upper electrode, a lower connection wire connected to a lower electrode, a fusible connection wire connected between the head metal fitting and the lower connection wire, And a cylindrical arc suppressor surroundin...

Claims

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Application Information

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IPC IPC(8): H01H85/042
CPCH01H85/042
Inventor 伊藤博光藤森树
Owner 爱那其斯株式会社