Terminal Block Fire Suppression With Heat-Chemical Triggering
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Solution Overview
Problem
Existing fire-extinguishing systems for electrical equipment are limited by low extinguishing capacity, short service life, complex installation, delayed response, and inability to disconnect power sources during fires, particularly in small volumes like sub-outlets and REA elements.
Innovation Solution
A terminal block with a built-in autonomous fire-extinguishing device featuring a heat-chemical igniter and thermal fuse that triggers at lower temperatures, releasing an aerosol-forming or gas-forming composition to suppress fires and disconnect power, allowing installation in various electrical devices without complex mounting.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If microcapsules with fire-extinguishing agent are used, then fire suppression is achieved, but service life is short (no more than two years)
Solution Approach 1:
The patent changes the physical-chemical parameters of the fire-extinguishing system by using a solid fuel aerosol-forming composition instead of liquid microcapsules. This composition remains stable for long periods and only activates when exposed to flame, thereby extending service life while maintaining fire suppression capability.
2Reliability
If gas fire-extinguishing plant with cylinder and pipelines is used, then fire suppression is effective, but installation complexity increases
Solution Approach 1:
The patent merges the fire-extinguishing agent storage and delivery system into a single integrated terminal block unit. The solid fuel composition is contained within the terminal block housing and releases aerosol directly at the contact point, eliminating the need for separate cylinders, pipelines, and complex mounting structures.
Solution Approach 2:
The terminal block serves multiple functions simultaneously: electrical connection, circuit protection, and fire suppression. This multi-functionality eliminates the need for separate fire-extinguishing equipment, simplifying installation while maintaining effectiveness.
3Area of stationary object
If fire-extinguishing wire installation is used, then large-sized facilities are protected, but installation complexity increases
Solution Approach 1:
The patent divides the protected electrical system into multiple terminal block units, each providing localized fire suppression. This segmentation allows the system to protect large volumes through distributed units rather than requiring complex wire installation across entire facilities.
4Device complexity
If heat-sensitive wire triggering is used, then response time is delayed, but device simplicity is maintained
Solution Approach 1:
The patent changes the triggering mechanism from heat-sensitive wire (requiring high temperatures) to flame-sensitive solid fuel composition (activating at lower temperatures upon flame exposure). This parameter change enables faster response time while maintaining device simplicity.
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 terminal block effectively extinguishes fires and disconnects power sources in small volumes with high efficiency, using a compact design and low-temperature triggering, ensuring rapid response and autonomy without affecting electrical equipment.
Implementation Method 1
a triggering unit in the form of a heat-chemical igniter (5) with a heat-sensitive element (8)
Implementation Method 2
a heat-sensitive fuse (4) connected to contact groups (3) in the housing, capable of breaking an electrical circuit by exceeding the flowing current through it, the load current or excess temperature created by a burning aerosol-forming or gas-forming composition (2)
Implementation Method 3
releasing an aerosol-forming or gas-forming composition to suppress fires
Implementation Method 4
aerosol-forming or gas-forming composition (2)... During combustion, an aerosol-forming or gas-forming composition (2) releases a fire-extinguishing aerosol
Data Source
AI summary
The invention relates to autonomous fire-extinguishing plants based on aerosol-forming or gas-forming compositions. It can be used to prevent fire in switchboards, sub-outlets, computers, electronic equipment (REA), elements of digital and analog modules, electronic boards. The terminal block with an autonomous fire-extinguishing device and heat-chemical triggering is made in a dielectric housing (1) and comprises metal contacts (3) with wire attachment points. The metal contacts (3) with the attachment points are a contact group forming a closed electrical circuit. A module (2) with an aerosol-forming or gas-forming composition is located inside the dielectric housing. The thermal fuse (4) is connected to a closed electrical circuit between the metal contacts (3) with the attachment points of the contact group and is designed with the possibility of breaking the closed electrical circuit by exceeding the load current flowing through it or exceeding the maximum average volume temperature. The heat-chemical igniter is connected to the module (2). The heat-sensitive element (8) is connected to a heat-chemical igniter. The dielectric housing comprises an open part, which is also a nozzle opening for the exit of extinguishing products. It provides the possibility of using a terminal block with a built-in autonomous fire-extinguishing device for connecting wires, the possibility of initializing an autonomous fire-extinguishing device with a heat-chemical igniter and breaking an electrical circuit in the form of wires connected to the terminal block.