Battery Chamber Sensor Layout for Real-Time Thermal Emission Mapping
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Solution Overview
Problem
Existing battery safety evaluation systems face challenges in accurately measuring real-time temperature distribution of gas and flame emissions due to damage risks to thermal imaging cameras and limitations in chamber design, particularly with explosion-proof windows.
Innovation Solution
A battery safety evaluation apparatus with a mounting plate, chamber unit, and temperature sensor units arranged in specific patterns to analyze temperature distribution and emission locations over time, using temperature sensor units spaced apart to minimize damage and maximize measurement accuracy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a thermal imaging camera is installed inside the chamber for battery analysis, then the temperature distribution of gas and flame can be measured, but the thermal imaging camera may be damaged by harsh conditions within the chamber and it is difficult to operate a cooling device for the thermal imaging camera inside the chamber
Solution Approach 1:
The system divides the measurement function into two separate components: temperature sensor units that remain inside the chamber to measure temperature at multiple locations, and a thermal imaging camera that operates outside the chamber to capture thermal images. This segmentation allows each component to operate in its optimal environment while achieving the overall measurement objective.
Solution Approach 2:
The patent introduces an infrared transmission window as an intermediary element that allows infrared radiation to pass from the interior of the chamber to the thermal imaging camera outside. This intermediary enables the thermal imaging camera to measure temperature distribution without being exposed to the harsh internal chamber conditions.
2Reliability
If the thermal imaging camera is installed outside the chamber for battery analysis, then the camera is protected from harsh conditions, but a window made of material capable of transmitting infrared rays is required and chambers designed for explosion-proofing have limitations in window size, limiting the scale of measurement
Solution Approach 1:
Instead of relying on a single large infrared window, the system segments the measurement approach by using multiple small temperature sensor units distributed throughout the chamber interior. Each sensor provides localized temperature data, collectively covering the entire measurement area without requiring large window openings.
Solution Approach 2:
The patent replaces the mechanical/optical approach of using a thermal imaging camera with infrared transmission through a window with an electrical sensing approach using temperature sensor units connected via wiring. This substitution eliminates the need for large infrared-transmitting windows while achieving comprehensive temperature measurement.
3Measurement precision
If multiple temperature sensor units are spaced apart within the battery accommodation space, then real-time temperature distribution analysis is enabled, but the device complexity increases
Solution Approach 1:
The temperature sensor units are designed with universal functionality to perform multiple tasks: measuring temperature at their specific location, providing data for spatial temperature distribution analysis, and enabling temporal changes detection. This multi-functionality reduces the need for specialized sensors for each measurement objective, simplifying the overall device architecture.
Solution Approach 2:
The patent combines the functions of multiple temperature sensor units into a unified data processing system that collectively provides comprehensive temperature distribution analysis. By merging the data from all sensor units and processing them together, the system achieves precise spatial and temporal temperature analysis while managing complexity through integrated processing rather than separate analysis for each sensor.
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
Enables effective real-time analysis of temperature distribution and emission locations from batteries, enhancing reproducibility and minimizing part consumption for repeated measurements.
Implementation Method 1
a plurality of temperature sensor units in the battery accommodation space; and a temperature analysis unit for receiving temperature measurement signals periodically from the plurality of temperature sensor units
Data Source
AI summary
Battery safety evaluation devices are provided. The battery safety evaluation devices may comprise: a mounting plate, the mounting plate comprising an upper surface for affixing a battery thereto; a chamber unit, the chamber unit comprising a battery accommodation space for accommodating the mounting plate; a plurality of temperature sensor units in the battery accommodation space; and a temperature analysis unit for receiving temperature measurement signals periodically from the plurality of temperature sensor units, wherein the plurality of temperature sensor units are spaced apart from each other within the battery accommodation space.