Electrical Fire-Extinguishing Module With Thermal Fuse Power Cutoff
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Solution Overview
Problem
Existing fire-extinguishing devices for electrical equipment face limitations in extinguishing capacity, installation complexity, response time, and versatility, particularly in small volumes and without human intervention, and lack the ability to disconnect power and signal fire suppression.
Innovation Solution
An autonomous fire-extinguishing device (AFED) with a compact housing containing an aerosol-forming or gas-forming composition, triggered by a heat-chemical igniter or external signal, and equipped with thermal fuses to disconnect power, capable of generating a signal and installed without special fastening in various electrical devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If microcapsules with fire-extinguishing agent are used in a polymer plate, then the device can suppress fire automatically, but the extinguishing capacity is low and service life is short (no more than two years)
Solution Approach 1:
The fire-extinguishing system is divided into multiple independent aerosol generators, each capable of autonomous operation. This segmentation allows the system to maintain reliability over time through redundancy while each generator maintains high extinguishing capacity independently.
Solution Approach 2:
The invention changes the physical and chemical parameters of the fire-extinguishing agent by using aerosol-forming compositions instead of traditional microcapsule contents. This includes using flammable liquid aerosols that can be ignited to produce fire-extinguishing effects, fundamentally changing how the extinguishing function is achieved and extending service life.
2Quantity of substance
If a gas fire-extinguishing plant with cylinder and complex delivery system is used, then extinguishing capacity is sufficient, but the device complexity and installation complexity increase
Solution Approach 1:
The invention extracts and eliminates the complex cylinder-based gas delivery system, pipelines, and control mechanisms from the fire-extinguishing device. Instead, it uses simple aerosol generators that directly produce and discharge fire-extinguishing aerosols without requiring complex delivery infrastructure.
Solution Approach 2:
The aerosol generator combines the fire-extinguishing agent storage, aerosol formation mechanism, and discharge system into a single integrated compact unit. This merging eliminates the need for separate cylinders, pipelines, and control devices, dramatically simplifying installation while maintaining extinguishing capacity.
3Reliability
If fire-extinguishing wire installation with support mounting is used, then fire protection is provided, but the installation complexity increases due to perimeter mounting requirements
Solution Approach 1:
The aerosol generator is designed as a universal device that can be installed in multiple locations and configurations within an electrical cabinet. It can serve multiple protection zones simultaneously and can be mounted on various surfaces without requiring specialized support structures, making installation simpler while maintaining comprehensive fire protection.
4Extent of automation
If fire-extinguishing device is placed on bracket or flat surface, then the device can operate independently, but location options are limited and effectiveness is reduced
Solution Approach 1:
The aerosol generator incorporates flexible mounting mechanisms that allow it to be dynamically positioned in various locations and orientations. The device can be mounted on walls, ceilings, or attached to electrical equipment surfaces, providing adaptability to different installation environments while maintaining independent automatic operation capability.
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 AFED provides efficient fire suppression in small volumes with rapid response and versatility, disconnecting power and signaling fire suppression, reducing installation complexity and enhancing extinguishing capacity.
Implementation Method 1
aerosol-forming or gas-forming composition... triggered by a heat-chemical igniter
Implementation Method 2
equipped with thermal fuses to disconnect power
Data Source
AI summary
The invention relates to the field of fire-extinguishing, and more particularly to a fire-extinguishing device containing an aerosol-forming or gas-forming composition and comprising a housing (1), a module containing an aerosol-forming or gas-forming composition (2), and a trigger assembly in the form of a thermochemical igniter (15) containing a heat-sensitive element (16) and an electrical igniter of the aerosol-forming or gas-forming composition (6) which is triggerable by an external signal, the fire-extinguishing device further comprising at least one thermal fuse (3) installed in a power wire (11), wherein one of the contacts of said thermal fuse (3) is connected to a heat-sensitive trigger device (7) which is connected to the electrical igniter of the aerosol-forming or gas-forming composition (6). The technical result of the invention is a self-contained fire-extinguishing device which can be used for electrical sockets, socket boxes, electronic components, digital modules, printed circuit boards and electronic and electrical devices, and which can be triggered by a thermochemical igniter, an external electrical signal, or an internal or external heat-sensitive trigger device, the fire-extinguishing device also being capable of generating an information signal regarding the activation thereof.