Stress Wave Amplifier for Electromagnetic Fire Bomb Launch
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Solution Overview
Problem
Existing electromagnetic launch systems for fire extinguishing bombs in high-rise buildings are impractical due to high costs, complexity, and the need for high-precision components, as well as limitations in adjustable launch distance and rapid succession capabilities, posing safety risks.
Innovation Solution
A vehicle-mounted control mechanism using a single-stage electromagnetic launch system with a step-up transformer, rectifier bridge, pulse capacitor, and stress wave amplifier, which generates a high-speed stress wave to launch fire extinguishing bombs, achieving adjustable launch velocity and high control accuracy with reduced component complexity and cost.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a multi-stage coil system with photoelectric monitoring is used, then launch velocity control is improved, but device complexity and cost increase significantly
Solution Approach 1:
The patent extracts and removes the complex photoelectric monitoring system and us-level switch from the multi-stage coil configuration, replacing them with a simplified single-stage electromagnetic launch system that uses a stress wave amplifier and capacitor-based energy storage, thereby reducing device complexity while maintaining launch velocity control accuracy within 1% error
Solution Approach 2:
The patent segments the complex multi-stage electromagnetic coil system into a single-stage configuration with separate functional components (electromagnetic launch coil, stress wave amplifier, pulse capacitor), making the system easier to control and less complex while achieving the same launch velocity precision
2Measurement precision
If a multi-stage coil system with photoelectric monitoring is used, then launch velocity control is improved, but manufacturing cost increases
Solution Approach 1:
The patent replaces expensive photoelectric monitoring systems and precision level switches with a simpler capacitor charging and discharging mechanism that uses readily available components, significantly reducing manufacturing cost while achieving comparable or superior control accuracy through electrical timing rather than optical sensing
3Length of moving object
If gunpowder or air cannon is used for launching, then launch distance is sufficient, but safety risks and inability to launch in rapid succession increase
Solution Approach 1:
The patent replaces the mechanical combustion-based launch systems (gunpowder, air cannon) with an electromagnetic launch system that uses controlled electrical energy discharge through a pulse capacitor and electromagnetic coil, eliminating combustion safety risks while enabling rapid successive launches through electrical control
4Length of moving object
If gunpowder or air cannon is used for launching, then launch distance is sufficient, but launch speed adjustability decreases
Solution Approach 1:
The patent enables launch speed adjustability by changing electrical parameters (capacitor charging voltage, discharge timing) rather than mechanical parameters, allowing precise control of launch velocity within a 1% error margin while maintaining sufficient launch distance through optimized electromagnetic force parameters
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 system enables precise and repeatable launch of fire extinguishing bombs at speeds up to 500 m/s with 1% error control, addressing the limitations of multi-stage coil systems by utilizing a stress wave to propel bombs efficiently and safely, while reducing costs and complexity.
Implementation Method 1
A step-up transformer TM1 boosts the 380 V alternating current and changes it to direct current through a rectifier bridge to charge a pulse capacitor C1
Implementation Method 2
A stress wave is generated due to a huge eddy current repulsion generated between the primary coil and the secondary coil
Implementation Method 3
A stress wave is generated due to a huge eddy current repulsion generated between the primary coil and the secondary coil. The stress wave is transmitted to a fire extinguishing bomb through the stress wave amplifier, causing the fire extinguishing bomb to be launched at a high speed
Data Source
AI summary
A control mechanism of a vehicle-mounted system for electromagnetic launch of fire extinguishing bombs for high-rise buildings is provided. A stress wave amplifier is fixedly connected to a secondary coil, a primary coil is fixedly connected to a coil base, a guide shaft passes through a central hole in the primary coil and the coil base, and a head of the guide shaft is fixedly connected to the secondary coil. A step-up transformer TM1 boosts a 380-V alternating current and changes it to direct current to charge a pulse capacitor C1 and store energy in the pulse capacitor C1. A discharge thyristor M3 is triggered, and the pulse capacitor C1 releases the energy instantaneously. A stress wave is generated between the primary coil and the secondary coil. The stress wave is transmitted to a fire extinguishing bomb through the stress wave amplifier, to launch the fire extinguishing bomb.