High-voltage plasma membrane switch and manufacture method thereof

Abstract

The invention aims to provide a high-voltage plasma membrane switch and a manufacture method thereof and overcomes the defects that a high-voltage plasma membrane switch for an existing slapper plate detonator is high in trigger energy and poor in work stability. The technical scheme is as follows: the high-voltage plasma membrane switch comprises an insulation base, switch electrodes and a polyimide film, wherein the switch electrodes are distributed on the insulation base and are covered with the polyimide film; the switch electrodes comprise two trigger electrodes and two main electrodes; two trigger electrodes are connected through multiple layers of composite energetic bridge membranes; the main electrodes are positioned on the side surfaces of the bridge membranes and a switch gap is reserved among the main electrodes and the bridge membranes. The high-voltage switch has the advantages of low trigger energy, short response time, high temperature resistance and high insulation property and the like; the high-voltage switch is small in volume and can be easily integrated with an explode foil, so that the high-voltage switch is further applicable to a new-generation slapper plate detonator; further, in the manufacturing process, the magnetron sputtering and a mask process are adopted to deposite the multiple layers of composite energetic bridge membranes between the two trigger electrodes so as to connect the two trigger electrodes; the process flow is simple and is low in manufacture cost.

Description

technical field [0001] The invention belongs to the field of pyrotechnics, and relates to a high-voltage switch for a shock plate detonator, in particular to a high-voltage plasma membrane switch and a manufacturing method thereof. Background technique [0002] As an important detonating component in various ignition devices, detonators are widely used in military and civilian fields such as aviation, aerospace, missile launch, and mine blasting. Shock plate detonator as a new type of detonator, such as figure 1 As shown, there is no direct contact between the explosive foil and the explosive, resistance to mechanical shock, radio frequency, static electricity, stray current and electromagnetic interference, and rapid and reliable action. It is currently the most widely used detonator system. Its main working principle is: when the trigger signal comes, the capacitor discharges to generate a large pulse current to change the bridge foil from solid state to plasma state, and...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a high-voltage plasma membrane switch and its manufacturing method for the defect of high trigger energy of the high-voltage switch for the existing shock plate detonator. The high-voltage switch has low trigger energy, short response time, high temperature resistance, and high insulation. It has the advantages of small size and easy integration with explosive foil, etc., and the preparation method is simple and the manufacturing cost is low

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