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Arc extinguishing fuse with open-circuit mark

A fuse and arc extinguishing technology, which is applied to circuits, electrical components, emergency protection devices, etc., can solve the problems of slow fuse fusing speed, harm, and increase the time of breaking the circuit, so as to achieve reliable operation, convenient use and simple structure. Effect

Inactive Publication Date: 2018-10-26
扬中市祥龙电器有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, when the existing fuses are disconnected, electric arcs will be generated, which will cause high temperature damage to the shell and ports. At the same time, the generation of electric arcs and the slow fusing speed of the fuses will increase the disconnection time, which will cause damage to the load or other components in the entire circuit. Electric appliances bring harm, the above problems are urgently to be solved by those skilled in the art

Method used

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  • Arc extinguishing fuse with open-circuit mark
  • Arc extinguishing fuse with open-circuit mark
  • Arc extinguishing fuse with open-circuit mark

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] When in use, inject quartz sand into the first cavity through the sand injection hole, and the quartz sand plays the role of arc extinguishing after the melt is melted. Since the melt is provided with a cut corner, the wide body of the melt connection is changed, and the fusing time is shortened without changing the material of the melt.

[0025] A compressed return spring is arranged in the second cavity, and the two ends of the return spring are respectively connected to the first conductive sheet and the second conductive sheet through the thin constantan wire, and the thin constantan wire at the front end is also connected to the identification block , used to pull the identity block. The resistance value of the fine constant copper wire plus the return spring is slightly greater than the resistance value of the melt. When the melt is blown by a large current, the current only passes through the circuit of the fine constant copper wire and the return spring. At this...

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Abstract

The invention discloses an arc extinguishing fuse with an open-circuit mark. Pipe caps are arranged at two ends of a pipe body, a partition plate is arranged in the pipe body, a fuse is arranged in afirst cavity, a first conductive sheet and a second conductive sheet are respectively arranged at two ends of the fuse, the first conductive sheet penetrates through a front pipe cape, the second conductive sheet penetrates through a rear pipe cape, a reset spring is arranged in the second cavity, one end of the reset spring is connected to an inner wall of the rear pipe cap, the other end of thereset spring is connected with a mark block, the mark block is movably clamped to the front pipe cap, a fuse wire is connected to a rear part of the reset spring, penetrates through the partition plate and is connected with the second conductive sheet, a fuse wire is arranged at a connection position of the mark block and the reset spring, penetrates through the partition plate is connected with the first conductive sheet, a sand injection hole is formed in the front pipe cap, and an arc extinguishing filler is arranged in the first cavity. The arc extinguishing fuse is simple in structure andreliable in working and is convenient to use.

Description

technical field [0001] The invention relates to an arc-extinguishing fuse with an open circuit mark, belonging to the technical field of electrical equipment. Background technique [0002] Fuse, commonly known as "fuse", is to connect a piece of metal wire or sheet with low melting point in the circuit. It is not only an excellent conductor but also a vulnerable link for overheating. Protect. [0003] At present, when the existing fuses are disconnected, electric arcs will be generated, which will cause high temperature damage to the shell and ports. At the same time, the generation of electric arcs and the slow fusing speed of the fuses will increase the disconnection time, which will cause damage to the load or other components in the entire circuit. Electrical appliances bring harm, and the above problems are urgently to be solved by those skilled in the art. Contents of the invention [0004] Purpose: In order to overcome the deficiencies in the prior art, the presen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01H85/055H01H85/165H01H85/18H01H85/08H01H85/17H01H85/34H01H85/38
CPCH01H85/055H01H85/08H01H85/165H01H85/17H01H85/18H01H85/34H01H85/38H01H2085/388
Inventor 陈亮
Owner 扬中市祥龙电器有限公司
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