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High-voltage fuse

A high-voltage fuse, fuse tube technology, applied in electrical components, circuits, emergency protection devices, etc., can solve the problems of inconvenient installation, slow response time, complex structure, etc., to achieve the effect of convenient installation

Inactive Publication Date: 2016-02-03
CHENGDU JUZHI IND DESIGN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, the existing high-voltage fuses have complex structures, inconvenient installation, poor structural stability, and slow response time

Method used

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  • High-voltage fuse

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Embodiment Construction

[0014] refer to figure 1 As shown, a high-voltage fuse includes a ceramic insulating tube 1, a connecting cap 2, a fuse tube 3 and an arc-extinguishing sleeve 4. The connecting cap 2 is arranged at both ends of the ceramic insulating tube 1, and the connecting cap 2 The ceramic insulating tube 1, the fuse tube 3 and the arc extinguishing sleeve 4 are arranged sequentially from the outside to the inside. When in use, the striker 7 is connected to the circuit, and the lead wire 8 is connected to the The silver melting element 9 is fused, so that the melting point trigger 5 starts, and the spring 6 drives the striker 7 to separate from the circuit, so that the circuit is disconnected. The top of the ceramic insulating tube 1 is provided with a melting point trigger 5, a spring 6 and a striker 7. The melting point trigger 5, the spring 6 and the striker 7 are sequentially connected, the arc extinguishing sleeve 4 is provided with a lead wire 8, the lead wire 8 is connected to the ...

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Abstract

The invention discloses a high-voltage fuse, which comprises a ceramic insulating pipe, connecting caps, a fuse pipe and an arc extinguishing sleeve, wherein the connecting caps are arranged at two ends of the ceramic insulating pipe and are in threaded connection with the ceramic insulating pipe respectively; the ceramic insulating pipe, the fuse pipe and the arc extinguishing sleeve are sequentially arranged from outside to inside; a fusing point trigger, a spring and a firing pin are arranged at the top end of the ceramic insulating pipe and are sequentially connected with one another; a lead is arranged in the arc extinguishing sleeve and is connected with the fusing point trigger; a silver melting element is arranged at the outer side of the fuse pipe and is arranged in a spiral form; and the silver melting element is electrically connected with the lead. The high-voltage fuse is compact in structure, good in arc extinguishing effect, quick to act and short in reaction time.

Description

technical field [0001] The invention relates to the technical field of power distribution equipment, in particular to a high-voltage fuse. Background technique [0002] A fuse refers to an electrical appliance that fuses the melt with the heat generated by itself and disconnects the circuit when the current exceeds the specified value. Melting, so that the circuit is disconnected; a current protector made by using this principle, the fuse is widely used in high and low voltage power distribution systems and control systems and electrical equipment, as a short circuit and overcurrent protector, is One of the most commonly used protection devices. [0003] A metal conductor is used as a melt in series in the circuit. When an overload or short-circuit current passes through the melt, it will fuse due to its own heating, thereby breaking the circuit. The fuse has a simple structure and is easy to use. It is widely used in power systems, As a protective device in various electr...

Claims

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Application Information

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IPC IPC(8): H01H85/042H01H85/38H01H85/22
CPCH01H85/042H01H85/22H01H85/38
Inventor 文国栋
Owner CHENGDU JUZHI IND DESIGN