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Explosion switch based on annular shaped charge jet

An energy-gathering jet and switching technology, applied in the field of electrical switches, can solve the problems of high price, low reliability and complex structure, and achieve the effects of simple structure, high reliability and fast disconnection speed.

Inactive Publication Date: 2016-11-30
UNIV OF SCI & TECH OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although several kinds of explosive switches have emerged in recent years, they all have disadvantages such as complex structure, low reliability, and high price, and are not suitable for mass use in industry.

Method used

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  • Explosion switch based on annular shaped charge jet
  • Explosion switch based on annular shaped charge jet
  • Explosion switch based on annular shaped charge jet

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Experimental program
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Effect test

Embodiment Construction

[0021] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0022] Such as figure 1 As shown, a kind of explosion switch based on annular shaped energy jet comprises detonator 1, detonator tube 2, detonator 3, shaped charge charge bag 4, metal circular tube weld seam 5, metal circular tube pre-cracked crack 6, Bracket 7, metal round pipe 8, circuit joint 9 and insulating shell 10. Among them, the detonator 1 and the detonator 3 are connected with the nonel tube 2, which is used to detonate the shaped charge charge 4; the shaped charge charge 4 is placed in the center of the welding seam 5 of the two metal circular tubes, and is used for cutting Welding seam; the pre-splitting crack 6 of the metal round tube is used to form a certain safety distance between the two ends after the circuit is disconnected; the bracket 7 is placed in the center of the metal round tube 8 to fix the shaped charge charge 4; the circui...

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PUM

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Abstract

The invention discloses an explosion switch based on an annular shaped charge jet. The explosion switch belongs to an explosion type normally-closed switch and is a disposable switch. The explosion switch mainly comprises an insulated cylindrical housing, two metal circular pipes and a shaped charge bag. According to the explosion switch disclosed by the invention, by adopting a shaped charge structure, the explosion energy is utilized fully, and the usage amount of an explosive is effectively reduced; because the explosive has the characteristics of strong power energy and fast power speed, the switch has the advantage of fast disconnection speed; and meanwhile, through reasonable structural design, the switch has the characteristic of far two-end distance after being disconnected, thereby particularly being applicable to some large circuits and high-power circuits; and in addition, the explosion switch further has the advantages of simple structure, high reliability and cheap price, etc.

Description

technical field [0001] The invention relates to an explosive cutting type circuit breaker, which is a normally closed switch, belongs to the technical field of electric switches, and is suitable for a circuit protection switch under high power. Background technique [0002] With the advancement of technology, large circuits and high-power circuits have been widely used in various fields. In order to protect the safety of the circuit, a protective switch must be installed on the circuit, so that the circuit can be disconnected in time when an accident occurs, so as to avoid short circuit, burning of the original and other major losses. Therefore, this requires that the protection switch should have the characteristics of fast disconnection speed, high current resistance, and high reliability. However, the traditional mechanical switch usually works by the principle of mechanical action, which cannot meet the requirement of fast cutting speed; at the same time, due to the lim...

Claims

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Application Information

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IPC IPC(8): H01H39/00F42B3/00
CPCH01H39/00F42B3/00
Inventor 马宏昊杨明沈兆武催宇
Owner UNIV OF SCI & TECH OF CHINA
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