Battery Module Temperature Sensor Bracket for Stable Cell Contact
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Solution Overview
Problem
The reliability of temperature data in battery modules is compromised due to poor contact between battery cells and temperature sensors, as seen in existing technologies.
Innovation Solution
A battery module design that integrates a sensing device with an elastic bracket to ensure firm contact between a temperature sensor and battery cells, using an elastic bracket to press the sensor against the cell surface, ensuring accurate temperature measurement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a temperature sensor is attached to the battery cell using a spring bias mechanism, then the temperature measurement capability is provided, but the contact reliability between sensor and battery cell deteriorates
Solution Approach 1:
The temperature sensor is integrated directly into the battery cell structure during the manufacturing process, merging the sensor and battery cell into a single unified component. This eliminates the need for separate attachment mechanisms and ensures reliable, consistent contact between the sensor and battery cell throughout operation.
Solution Approach 2:
The temperature sensor is pre-installed and positioned within the battery cell during manufacturing before the battery is put into service. This preliminary action ensures that the sensor maintains proper contact with the battery cell from the outset, avoiding contact issues that would arise from post-manufacturing attachment methods.
2Measurement precision
If a spring biased temperature sensor is used on the battery casing, then temperature sensing is enabled, but the manufacturing complexity increases
Solution Approach 1:
The temperature sensor is combined with the battery cell structure itself, eliminating the need for separate spring biased attachment mechanisms. This integration simplifies the overall device by removing unnecessary components while maintaining temperature sensing capability.
Solution Approach 2:
The battery cell structure itself serves as the mounting platform for the temperature sensor, eliminating the need for external attachment mechanisms. The battery cell provides both its structural function and its sensor mounting function, reducing overall system complexity.
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
Facilitates accurate temperature measurement by maintaining consistent contact between the temperature sensor and battery cells, enhancing the reliability of temperature data without additional manufacturing steps.
Implementation Method 1
a sensing device (80) which is fixedly coupled to the bus bar assembly (90), and comprises an elastic bracket (81) having a support member (85) formed in a rod shape
Data Source
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AI summary
A battery module includes a cell stack including a plurality of battery cells stacked therein, a bus bar assembly coupled to a side of the cell stack, on which an electrode lead of the battery cell is disposed, and a sensing device coupled to the bus bar assembly and measuring a temperature of the battery cell. The bus bar assembly is coupled to the cell stack in a vertical direction, and the sensing device includes a temperature sensor disposed in close contact with the battery cell, and an elastic bracket pressing the temperature sensor toward the battery cell through elastic force.