Fireproof Junction Box With Integrated Aerosol Fire Suppression
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing fire extinguishing systems for electrical installations are labor-intensive, have installation limitations, and often require additional fixtures, leading to reduced effectiveness and increased installation complexity.
Innovation Solution
A self-contained fire extinguishing agent system integrated within the junction box enclosure, utilizing an Aerosol-Forming Composition (AFC) or a mixture of AFC and Microencapsulated Agent, triggered by heat, to generate fire extinguishing aerosols and phlegmatizing agents directly within the protected volume, ensuring high concentration and efficient suppression without additional installation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If autonomous gas fire extinguishing units with cylinders and delivery lines are installed, then fire suppression capability is provided, but installation complexity and labor intensity increase significantly
Solution Approach 1:
The fire extinguishing agent container is merged with the junction box enclosure itself, forming an integrated structure where the enclosure serves dual purposes: housing electrical connections and containing the fire suppression system, thereby eliminating separate installation components
Solution Approach 2:
The junction box enclosure is designed to perform multiple functions simultaneously: it serves as both the electrical connection housing and the fire extinguishing system container, with the walls of the enclosure acting as both structural boundaries and containment for the fire suppressant
2Reliability
If fire extinguishing cords are fixed using support structures with adhesive layers, then fire protection is provided, but installation labor intensity increases due to perimeter attachment requirements
Solution Approach 1:
The fire extinguishing agent is integrated directly into the junction box enclosure structure, eliminating the need for separate support structures and adhesive applications, as the enclosure itself becomes the containment system
3Reliability
If self-activating fire extinguishing devices are suspended on brackets or placed on surfaces, then fire suppression is achieved, but location variants are limited and effectiveness decreases
Solution Approach 1:
The junction box enclosure serves as both the mounting structure and the fire suppression container, allowing the system to be installed wherever junction boxes are required without needing separate mounting locations or surface attachments
4Reliability
If standard flame-extinguishing agents are used in separate tanks with pipelines and nozzles, then fire suppression capability is provided, but chemical safety concerns arise and manufacturing complexity increases
Solution Approach 1:
The fire suppression system uses a phase change mechanism where the fire extinguishing composition transitions from liquid to gas phase when exposed to fire heat, eliminating the need for pressurized tanks and complex delivery pipelines while maintaining effective suppression capability
Solution Approach 2:
The fire extinguishing agent is extracted from separate pressurized tank systems and integrated directly into the junction box enclosure, removing the need for pipelines, nozzles, and complex actuation mechanisms
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 provides complete fire suppression within the junction box without external agents, ensuring high extinguishing efficiency and simplified installation, applicable in any space, with calculated extinguishing parameters and no impact on electrical equipment.
Implementation Method 1
Aerosol-Forming Composition (AFC)... triggered by heat, to generate fire extinguishing aerosols
Implementation Method 2
a heat triggering composition is applied to the FEA, with an initiation temperature lower than the initiation temperature of the FEA
Data Source
AI summary
The invention relates to electrical equipment, and more particularly to electrical junction boxes having in the structure thereof a fire extinguishant for preventing combustion. The technical problem addressed by the claimed solutions is that of broadening the functional capabilities of electrical junction boxes. The technical result of the claimed invention consists in making it possible to completely suppress combustion inside an electrical junction box without the use of external fire-extinguishing means. This technical result is achieved in a fireproof electrical junction box comprising a polymer housing with inner projections that form a cavity for holding a fire extinguishant designed to be capable of exiting into the space of the housing to be protected, said fire extinguishant consisting of an aerosol-forming composition (AFC) or a mixture of an AFC and a microencapsulated agent. The technical result is also achieved in a fireproof electrical junction box comprising a polymer housing with a thermal cord disposed therein that is filled with a fire extinguishant designed to be capable of exiting into the space of the housing to be protected, said fire extinguishant consisting of an aerosol-forming composition (AFC) or a mixture of an AFC and a microencapsulated agent.