Battery Module Temperature Sensor Assembly for Multi-Point Cell Sensing
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Solution Overview
Problem
Existing temperature sensor devices for battery modules face challenges in simplifying configuration, accurately detecting temperature changes across multiple positions on a battery cell, and improving workability during attachment, particularly when combined with voltage detection devices.
Innovation Solution
A temperature sensor device featuring flexible thermistor sensors with an elastic member for secure attachment to battery cells, multiple sensors positioned to detect varying temperature changes, and integration with voltage detection devices for improved attachment workability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a warp part is provided to fix the temperature sensor to the battery module, then the temperature sensor can be securely attached, but the configuration becomes complex and simplification becomes difficult
Solution Approach 1:
The temperature sensor uses a flexible substrate that can be directly attached to the battery module surface without requiring additional warp parts or complex fixing structures. The flexibility of the substrate allows it to conform to the battery surface and maintain reliable attachment through its own mechanical properties.
2Device complexity
If only one temperature sensor is provided for one battery cell, then the device configuration is simple, but detection of different temperature changes at multiple positions becomes difficult
Solution Approach 1:
The temperature detection function is segmented into multiple independent temperature sensors positioned at different locations on the battery cell. Each sensor independently monitors temperature at its specific position, enabling comprehensive detection of temperature variations across the entire battery cell surface.
3Ease of manufacture
If the temperature sensor device and voltage detection device are attached separately to the battery module, then each device can be optimized independently, but the attachment workability deteriorates
Solution Approach 1:
The temperature sensor device and voltage detection device are merged into a single integrated assembly that attaches to the battery module as one unit. This combination maintains the functional optimization of each device while significantly improving attachment workability by reducing the number of separate attachment operations required.
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 simple configuration and accurate detection of temperature changes across multiple positions on battery cells, enhancing attachment workability and temperature control within battery modules.
Implementation Method 1
The energizing part includes a warp part. The energizing part energizes the temperature sensor toward the battery module by elastic deformation of the warp part.
Data Source
AI summary
A temperature sensor device including a temperature sensor and an elastic member placed between the temperature sensor and a pressing body that presses the temperature sensor toward a battery cell.