Two-segment type insulation porcelain injection fuse of fuse tube peripheral equipment insulating layer

A technology of fuse tube and insulating porcelain, which is applied in the direction of electrical components, circuits, emergency protection devices, etc., can solve the problems of incomplete breaking, easy generation of arc, and inability to determine the fuse, so as to avoid discharge phenomenon and pop up reliably.

Inactive Publication Date: 2016-11-16
LIAONING HUALONG ELECTRIC POWER TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This patent has the following defects: 1. It is impossible to determine where the fuse first fuses. If the fuse occurs at the bottom end, the residual fuse on the upper part and the lead-out wire in the lower outlet are relatively close to each other, which is easy to generate ar

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  • Two-segment type insulation porcelain injection fuse of fuse tube peripheral equipment insulating layer
  • Two-segment type insulation porcelain injection fuse of fuse tube peripheral equipment insulating layer
  • Two-segment type insulation porcelain injection fuse of fuse tube peripheral equipment insulating layer

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Embodiment Construction

[0010] The present invention is specifically described below in conjunction with accompanying drawing, as figure 1 , figure 2 As shown, the present invention includes an insulating porcelain body and a fuse tube arranged in the axial cavity 100 of the insulating porcelain body. The insulating porcelain body includes two parts: an upper insulating porcelain body 14 and a lower insulating porcelain body 15. The insulating porcelain body The top of the porcelain body is provided with a locking device 10; as image 3 As shown, the locking device 10 includes a jacket 106 fixed in the groove on the top of the insulating porcelain body, the outside of the jacket 106 is provided with threads, and a wedge-shaped through hole 105 is arranged in the middle; the lead-out line 1 of the upper fuse tube 6 Through the wedge-shaped through hole 105; the clamping nut 107 is arranged outside the jacket 106, and the inner diameter of the clamping nut 107 is smaller than the outer diameter of th...

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Abstract

The invention discloses a two-segment type insulation porcelain injection fuse of a fuse tube peripheral equipment insulating layer. The top of an insulation porcelain is provided with a locking device. A fuse is fixed to the wiring column of a lower part fuse tube and goes through an upper fuse tube and then is fixed at the upper end of the insulation porcelain by a locking device. A part of the fuse at a middle fuse tube has a fuse part with a small diameter. Two ends of the fuse part are provided with fireproof caps. The fuse between the fireproof caps and the upper fuse tube and the lower fuse tube is sleeved by a heat shrinkable insulation layer. The axial cavity between the upper fuse tube and the lower fuse tube is provided with a spring. A pounding head is fixed at the bottom of the lower fuse tube. The bottom of the axial cavity of the insulation porcelain is provided with a plug. According to the invention, the insulation state of the fused fuse can be ensured, and the discharge phenomenon caused by a bad fusing position is avoided. In addition, the fuse tubes are used to directly press the spring, the pounding head is used to destroy the bottom plug of the insulation porcelain, and thus the reliable ejection of the lower fuse tube can be guaranteed.

Description

technical field [0001] The invention relates to the technical field of power equipment, in particular to a fuse. Background technique [0002] Spray type fuse is to install the melt in the insulating tube made of solid gas-generating material. Solid gas-generating materials can be made of electrical anti-white cardboard or plexiglass materials. When the short-circuit current passes through the melt, the melt will be fused immediately to generate an arc, and the high-temperature arc will quickly decompose the solid gas-producing material to generate a large amount of high-pressure gas, so that the ionized gas will be ejected at both ends of the tube with an arc, and a great sound and light will be emitted. And when the AC current crosses zero, the arc is extinguished and the current is broken. Chinese patent application number 201310538197.X discloses a fuse, the fuse tube is arranged inside the insulating ceramic body, and the upper contact electrode and the lower contact ...

Claims

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Application Information

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IPC IPC(8): H01H85/05H01H85/055H01H85/08H01H85/165
CPCH01H85/05H01H85/055H01H85/08H01H85/165
Inventor 由仁宽任萍刘茜王晓利
Owner LIAONING HUALONG ELECTRIC POWER TECH
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