Layered Pyrotechnic Device with Embedded Meandering Igniters
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Solution Overview
Problem
Existing pyrotechnic devices for generating effects in civil defense and military exercises are complex and costly to produce, especially when multiple effects are required, due to the intricate placement and ignition of pyrotechnic charges and igniter pellets within tubular enveloping bodies.
Innovation Solution
A device with a common enveloping body formed from interconnected layers, where pyrotechnic charges and igniter means are integrated within, allowing for simplified assembly and production, with igniter means embedded in the layers and a predetermined breaking point for controlled ignition, enabling reliable operation and easy manufacturing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a tubular or sleeve-like enveloping body is used to house multiple pyrotechnic charges and igniter pellets, then the device can generate multiple pyrotechnic effects, but the production becomes very costly and complicated
Solution Approach 1:
The enveloping body is divided into multiple layers (first layer, second layer, third layer) that can be separately manufactured and then assembled. This segmentation allows each layer to be produced independently using simpler processes, reducing overall manufacturing complexity while enabling multiple pyrotechnic effects through the integrated layer structure
Solution Approach 2:
The pyrotechnic charges and igniter means are nested between the layers of the enveloping body. Specifically, pyrotechnic charges are positioned between the first and second layers, while igniter means are positioned between the second and third layers. This nesting arrangement allows multiple components to be integrated within a compact multi-layer structure, achieving multiple pyrotechnic effects without requiring a complex tubular configuration
2Reliability
If igniter pellets are used to ignite individual effect charges in a tubular enveloping body, then pyrotechnic effects can be generated, but the ignition system becomes particularly complex
Solution Approach 1:
The igniter means are integrated directly into the layer structure of the enveloping body rather than being separate components. The igniter means are positioned between the second and third layers, with conductor paths extending through the layers to external contacts. This merging of the igniter system with the enveloping body structure simplifies the overall ignition system while maintaining reliable ignition function
Solution Approach 2:
Conductor paths serve as intermediaries that extend from the igniter means through the layers to external contacts. This intermediary structure provides a simple electrical connection system that enables reliable ignition without requiring complex wiring arrangements within the tubular structure
3Adaptability or versatility
If multiple pyrotechnic charges are disposed in the same enveloping body, then the device can produce multiple effects, but the placement and ignition becomes very costly and complicated
Solution Approach 1:
The enveloping body is segmented into multiple layers that provide distinct positioning zones for different components. Pyrotechnic charges are placed in specific regions between layers, with each charge having its own associated igniter means and conductor paths. This segmentation enables multiple pyrotechnic effects to be arranged in a structured, simplified manner rather than requiring complex placement within a single tubular space
Solution Approach 2:
The invention transitions from a one-dimensional tubular arrangement to a multi-layered planar structure. By distributing pyrotechnic charges and igniter means across different layers and regions, the device achieves multiple pyrotechnic effects with simpler placement and ignition arrangements, as each component can be independently positioned and connected within its own layer region
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution simplifies the production and operation of pyrotechnic devices by integrating igniter means within layers and using a breaking point for controlled ignition, ensuring reliable and efficient generation of pyrotechnic effects while maintaining device integrity.
Implementation Method 1
a pyrotechnic charge (10) and igniter means (12) assigned to the pyrotechnic charge (10)
Data Source
AI summary
A simple device for generating pyrotechnic effects, in which an enveloping body (11) is formed from a plurality of interconnected plate-like layers between which the pyrotechnic charges (10) as well as the igniter means (12) are embedded. A configuration of the igniter means (12) as heating resistors, in particular as heating resistors whose conductors run in a meandering path. Such igniter means (12) are particularly suitable for use in the formation of a plate-like enveloping body consisting of a plurality of layers. By virtue of this enveloping body, the device assumes a shape comparable to that of a credit card or bank card.