Primer Cup Separation Using Resistive Ignition in CEW Propulsion Modules
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing conducted electrical weapons (CEWs) face challenges in efficiently deploying electrodes and projectiles in adverse environmental conditions without the need for moving parts, and they consume excessive energy, leading to rapid battery depletion.
Innovation Solution
A CEW system that uses an electrical ignition signal to ignite a primer material, which in turn deploys electrodes or projectiles through a conductor and propulsion module, eliminating the need for mechanical components and optimizing energy use.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional ignition systems with additional energy sources are used, then ignition capability is provided, but device complexity and energy consumption increase
Solution Approach 1:
The patent merges the ignition function with the existing battery-powered electrical system of the CEW. The conductor that normally delivers electrical energy for electrode deployment is also used to generate heat for igniting the primer material, combining two functions into one integrated system without requiring separate ignition energy sources.
Solution Approach 2:
The electrical conductor serves multiple functions: it delivers electrical energy for electrode deployment and simultaneously generates thermal energy through resistive heating to ignite the primer material. This multi-functionality eliminates the need for dedicated ignition components and additional energy sources.
2Reliability
If additional energy sources are used for ignition, then ignition function is achieved, but battery power consumption increases
Solution Approach 1:
The system uses its own existing electrical energy supply to serve the ignition function. The battery-powered conductor generates heat through its normal electrical operation to ignite the primer, allowing the system to be self-sufficient without drawing additional power from external sources or consuming extra battery capacity beyond what is already allocated for electrode deployment.
3Reliability
If mechanical ignition systems are used, then ignition is provided, but moving parts increase device complexity and reduce reliability
Solution Approach 1:
The patent replaces traditional mechanical ignition systems (which would require moving parts such as strike mechanisms, flint, or percussion components) with an electrical heating system. The conductor generates heat through electrical resistance when current flows through it, eliminating all mechanical moving parts from the ignition mechanism and improving reliability.
Data Source
AI summary
A conducted electrical weapon (“CEW”) deploys wire-tethered electrodes after generation of an ignition signal. The ignition signal is provided to a deployment unit. The deployment unit includes a primer material adjacent a conductor. The conductor conducts the ignition signal outside the primer material. A temperature of the conductor increases in response to receiving the ignition signal. The primer material ignites in response to the increase in temperature of the conductor.