Battery Safety Cabinet With Heat-Triggered Shelf Tilting
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Solution Overview
Problem
Existing safety cabinets for storing electric batteries do not guarantee safe and full activation of fire extinguishing and quarantining systems, particularly in cases of malfunction or re-ignition after initial fire suppression.
Innovation Solution
A safety cabinet with a hinged shelf that tilts into a fireproof liquid tank upon reaching a predetermined temperature threshold, using a heat-sensitive mechanism to deactivate locking means and allow batteries to drop by gravity into the tank, ensuring complete extinguishing and quarantine.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a centralized electronic control unit is used to activate the tilting shelves and fireproof liquid system, then the system can be controlled and monitored, but the system fails to activate in case of control unit malfunction
Solution Approach 1:
The patent replaces the centralized electronic control unit with a distributed mechanical release mechanism. Each shelf group has its own mechanically coupled release mechanism that directly responds to heat-sensitive members, eliminating the need for electronic controls while ensuring reliable activation through pure mechanical linkage.
Solution Approach 2:
The system employs heat-sensitive members that automatically respond to temperature increases without external control signals. When the temperature rises, the heat-sensitive members directly trigger the mechanical release mechanisms, allowing the system to self-activate based on the fire condition without requiring a control unit.
2Productivity
If sprinkler or aerosol extinguishing systems are used, then fire can be temporarily extinguished, but the fire can start again or overheating can occur subsequently
Solution Approach 1:
The patent converts the harmful effect of fire-induced heat into a beneficial trigger mechanism. The heat-sensitive members utilize the temperature increase from the fire to automatically activate the release mechanisms, tilting the shelves and submerging batteries in fireproof liquid, thereby transforming the fire's own heat into the activation energy needed to counteract it.
Solution Approach 2:
The system utilizes the phase transition concept by submerging batteries in fireproof liquid (changing from air exposure to liquid immersion). This phase change in the battery environment effectively suppresses fire and prevents re-ignition by removing oxygen and cooling the batteries through liquid contact.
3Ease of operation
If inclined or tilted shelves are used to allow batteries to drop into fireproof liquid, then fire extinguishing is improved, but the system requires complex centralized electronic control
Solution Approach 1:
The patent divides the cabinet into multiple independent shelf groups, each with its own mechanical release mechanism and heat-sensitive members. This segmentation allows each section to operate independently based on local temperature conditions, eliminating the need for a centralized control system while maintaining effective fire response in the affected area.
Solution Approach 2:
The shelves are designed to be dynamically tiltable rather than fixed. The mechanical release mechanisms enable the shelves to transition from a horizontal supporting position to a tilted discharge position automatically when activated by heat-sensitive members, allowing batteries to drop into the fireproof liquid without complex electronic actuation.
4Ease of manufacture
If simple and easily available components are used, then manufacturing cost is reduced, but the system may lack reliability in activating extinguishing systems
Solution Approach 1:
The patent replaces complex electronic control components with simple mechanical elements such as levers, linkages, and mechanically coupled release mechanisms. These mechanical components are easily manufactured and available, yet they provide reliable activation through direct physical coupling between heat-sensitive members and the shelf tilting mechanism.
Solution Approach 2:
The system uses passive heat-sensitive members that automatically respond to temperature increases without requiring external power or control systems. These members directly trigger the mechanical release mechanisms through thermal expansion or phase change, ensuring reliable activation using simple, easily manufactured components that do not require complex assembly or calibration.
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 solution effectively extinguishes fires and quarantines batteries by ensuring immediate and automatic extinguishing, even in the absence of a centralized control unit, using simple and easily available components with minimal dimensions.
Implementation Method 1
The release means comprise a heat sensitive member which can be automatically activated upon reaching a predetermined threshold temperature
Implementation Method 2
allow the tilting of the shelf and let the batteries drop into the tank by gravity
Data Source
Figure 1A~2C
Figure 3A~3C
AI summary
A safety cabinet (1) for storing electric batteries (B), wherein the cabinet (1) comprises a closable compartment (2) provided with at least one shelf (3) for supporting one or more batteries (B). The cabinet (1) comprises a tank (11) for collecting a fireproof or extinguishing liquid (L) arranged below the at least one shelf (3), the shelf (3) is hinged with respect to the compartment (2), there being provided locking means (12) which can be deactivated to hold the at least one shelf (3) in raised position and release means (13) interacting with the locking means (12) and which can be automatically activated upon reaching a predetermined threshold temperature (T) so as to allow the tilting of the shelf (3) and let the batteries (B) drop into the tank (11) by gravity.