A planar three-electrode switch igniter based on electrode ablation

By designing a planar three-electrode switch igniter based on electrode ablation, and utilizing the electro-explosive plasma formed by electrode ablation for ignition, the problems of short lifespan and high cost are solved, achieving a high-safety and low-cost ignition effect, and simplifying the inline ignition system.

CN122015124BActive Publication Date: 2026-06-23SOUTHWEAT UNIV OF SCI & TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SOUTHWEAT UNIV OF SCI & TECH
Filing Date
2026-04-14
Publication Date
2026-06-23

AI Technical Summary

Technical Problem

Existing planar three-electrode switches have a short lifespan in ignition systems and exhibit significant electrode erosion, which limits their application. Furthermore, traditional high-voltage switches are expensive and cannot meet the requirements for low cost and miniaturization.

Method used

Design a planar three-electrode switch igniter based on electrode ablation. The ignition is achieved by generating an electro-explosive plasma through electrode ablation. The safety is improved by combining it with an insulating ring, and the cost is reduced by simplifying the structure.

Benefits of technology

It achieves high safety and low cost ignition effect, simplifies the inline ignition system, improves ignition reliability and is easy to mass-produce.

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Abstract

The application discloses a plane three-electrode switch igniter based on electrode ablation, belongs to the technical field of electric pulse driving and ignition and initiation, and comprises a base, a plug is embedded in the base, a pin hole is formed in the plug, a pin is fixedly connected in the pin hole, the pin comprises a trigger pin, a cathode pin and an anode pin, a plane three-electrode switch is arranged on the upper surface of the plug, the plane three-electrode switch comprises a trigger electrode, a cathode and an anode, an insulating ring is arranged on the upper surface of the plane three-electrode switch, a medicine ring is arranged on the upper surface of the insulating ring, an ignition powder column is arranged in the medicine ring, and a tube shell is embedded on the periphery of the base. The plane three-electrode switch is easy to ablate when conducting, the ignition of electric explosion plasma is realized, the complex structure and action process of the impact plate ignition tube are avoided, the safety requirement of 500V non-ignition is met, and the plane three-electrode switch igniter has the advantages of easy batch production, low price and the like.
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Citation Information

Patent Citations

  • Planar three-electrode driving device and preparation method thereof

    CN109341430A

  • Self-regulating electrolytic gas generator and implant system comprising the same

    CN110139683A

  • Carrier wind pressure adjusting valve device for plasma igniter

    CN213901134U