Magnetic Battery Storage Tray for Thermal Runaway Isolation
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Solution Overview
Problem
During transportation, abnormal heat generation in one battery can affect other batteries in stacked battery housing trays, posing a safety risk, as existing solutions fail to effectively suppress the spread of heat.
Innovation Solution
A battery housing tray design featuring a bottom plate with a side wall extending to surround the batteries and a plate-shaped permanent magnet fixed to the bottom plate, which attracts and isolates a heated battery, preventing heat transfer to adjacent batteries.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If multiple batteries are housed in closer contact with each other in the same battery housing tray, then transportation effectiveness is improved, but the risk of heat spread between batteries increases
Solution Approach 1:
A plate-shaped permanent magnet is introduced as an intermediary element between adjacent batteries on the bottom plate. This magnet serves as a mediator that actively attracts and isolates batteries experiencing abnormal heat generation, preventing direct heat transfer to neighboring batteries while maintaining close housing for transportation efficiency.
Solution Approach 2:
The patent replaces passive thermal insulation mechanisms with an active magnetic field-based system. Instead of relying solely on physical barriers or spacing to prevent heat spread, the invention uses magnetic attraction forces to dynamically respond to and contain thermal anomalies, substituting mechanical/thermal management with a field-based control mechanism.
2Volume of moving object
If battery housing trays are stacked during transportation, then space utilization is improved, but the spread of abnormal heat between stacked trays increases
Solution Approach 1:
The permanent magnet on the bottom plate acts as an intermediary that creates a magnetic containment zone within each tray. This intermediary field prevents abnormal heat from one tray from affecting adjacent stacked trays by actively attracting and isolating affected batteries, enabling safe vertical stacking for improved space utilization.
Solution Approach 2:
The permanent magnet provides preliminary protective action by being pre-installed on the bottom plate before any abnormal heat generation occurs. This pre-positioned magnetic field is ready to immediately attract and isolate batteries experiencing thermal runaway, preventing heat spread to other trays before the harmful effect can propagate through the stacked arrangement.
3Reliability
If a permanent magnet is added to the bottom plate to suppress abnormal heat effects, then safety is improved, but device complexity increases
Solution Approach 1:
Rather than making the entire battery housing system complex, the invention applies a localized solution by placing a permanent magnet only on the bottom plate. This local addition provides the necessary safety function of heat suppression through magnetic attraction, improving reliability without requiring complex modifications throughout the entire housing structure.
Solution Approach 2:
The invention changes the physical parameter of the bottom plate by adding a permanent magnet, transforming it from a passive support structure to an active safety component. This parameter change enables the bottom plate to generate magnetic attraction forces that suppress abnormal heat effects, achieving improved safety through a simple material/property modification rather than complex structural changes.
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 design effectively suppresses abnormal heat generation from affecting other batteries, enhancing safety during transportation by attracting and isolating the heated battery, thereby preventing fire spread.
Implementation Method 1
a plate-shaped permanent magnet fixed to at least part of a bottom surface of the bottom plate
Data Source
AI summary
This battery storage tray is provided with: a bottom plate which supports a plurality of batteries; a side wall which extends from the outer peripheral part of an upper surface of the bottom plate in the thickness direction of the bottom plate so as to surround a stage surface for the plurality of batteries in the upper surface, thereby defining a battery storage space, in which the plurality of batteries are contained, together with the bottom plate; and a plate-like permanent magnet which is affixed to at least a part of a bottom surface of the bottom plate.