Single-bridge dual-drive spherical exploding foil initiator

Abstract

The invention discloses a single-bridge dual-drive spherical exploding foil initiator, belonging to the technical field of application of initiators and pyrotechnics. The initiator comprises two semispherical units and an electric connecting assembly, wherein each semispherical unit comprises a semispherical shell, an acceleration chamber arranged inside the semispherical shell, an originating explosive column and an output explosive column; the electric connecting assembly comprises an explosive bridge foil and two sections of flat cables, wherein the explosive bridge foil is formed by coating polyimide foils on two sides of a copper foil and is connected between the two sections of flat cables, one end of one section of flat cable is folded, and a release hole for exposing a bridge area is arranged on the folded flat cable; and one end of the electric connecting assembly is arranged between the two semispherical units and the peripheries of the two semispherical shells are welded to form a complete sphere, wherein two sides of the bridge area of the explosive bridge foil are respectively and oppositely adjacent to chamber holes of the two acceleration chamber, and the other end of the electric connecting assembly is exposed outside the sphere. When the single-bridge dual-drive spherical exploding foil initiator is applied, an embedded body-body contact initiating manner can be adopted, so that the initiating capability and the reliability for initiating lower-level insensitive explosives are increased.

Description

technical field [0001] The invention belongs to the field of fuzes and pyrotechnics, and relates to a detonator for insensitive ammunition weapon systems, in particular to a high-energy insensitive detonator suitable for insensitive in-line detonation transfer sequences. Background technique [0002] The rapid change and development of modern warfare and the deteriorating battlefield environment have put forward more and more stringent requirements for weapons and ammunition. Ammunition not only needs to meet the requirements of long range, high precision and high power, but also needs to be more insensitive. The emergence of the concept of insensitive ammunition puts forward new requirements for the detonation sequence of the fuze, especially the most sensitive part of the sequence that has the greatest impact on reliability and safety—the detonating device, that is, the detonating device must have high safety and at the same time There must be sufficient output for reliab...

AI Technical Summary

Problems solved by technology

However, due to the low output energy of the main charge type four hexanitrostilbene (HNS-IV), the application of it in the detonation of the more insensitive lower charge (booster) in the sequence of insensitive ammunition is limited.

[0004] China's national defense patent application 200710082148.4 discloses a traditional explosive foil detonator. The detonator's detonator unidirectionally drives the flyer to detonate the main charge. Due to the limitation of the unidirectional output structure, the detonator is in the detonation sequence. Also can only adopt the detonating mode of surface-surface contact or point-surface contact, therefore, this kind of one-way output explosive foil detonator cannot solve the problem of its main charge output energy limitation

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