Battery Module Sensor Mounting for Stable Cell Temperature Detection
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Solution Overview
Problem
Existing battery modules face challenges in stably fixing the position of temperature sensors, which affects temperature detection accuracy.
Innovation Solution
A battery module design that includes a battery cell, a bus bar holder, a first substrate, a second substrate with a detection member and a support member, and a pressing member to securely position the detection member relative to the battery cell, ensuring accurate temperature detection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a temperature sensor is installed in a battery module, then temperature detection capability is improved, but the position of the temperature sensor is difficult to fix stably
Solution Approach 1:
The patent introduces a substrate as an intermediary component between the temperature sensor and the battery cell. The substrate provides a stable mounting platform with through-holes that secure the temperature sensor in a fixed position, preventing position drift while maintaining accurate temperature detection capability.
Solution Approach 2:
The patent separates the temperature sensor mounting function from the battery cell structure itself by using a dedicated substrate. This extraction allows the temperature sensor to be independently positioned and secured on the substrate, which is then positioned relative to the battery cell, solving the position stability issue.
2Measurement precision
If the detection member is positioned close to the battery cell, then temperature detection accuracy is improved, but the relative position may change arbitrarily
Solution Approach 1:
The substrate acts as a mediator that maintains a fixed relative position between the detection member and the battery cell. The through-holes in the substrate secure the detection member, ensuring it remains at a consistent, optimized distance from the battery cell for accurate temperature detection without arbitrary position changes.
Solution Approach 2:
The substrate is pre-configured with through-holes at specific positions that predetermined the optimal location for the detection member. This preliminary arrangement ensures the detection member is installed at the correct position for accurate temperature detection while being mechanically secured against displacement.
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 ensures that the detection member maintains a stable relative position to the battery cell, enhancing temperature detection accuracy and preventing arbitrary changes in position.
Implementation Method 1
a pressing member connected to the bus bar holder and configured to press the support member toward the battery cell
Implementation Method 2
a detection member installed on the second surface and configured to detect a temperature of the battery cell
Data Source
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AI summary
A battery module is provided. In an example embodiment, a battery module includes: a battery cell (100), a bus bar holder (200) disposed to face the battery cell (100), a first substrate (300) seated on the bus bar holder (200), a second substrate (400) extending from the first substrate (300), and including a first surface (401) facing the battery cell (100) and a second surface (402) opposite to the first surface (401), a detection member (500) installed on the second surface (402) and configured to detect a temperature of the battery cell (100), a support member (600) installed on the first surface (401) and in contact with the battery cell (100), and a pressing member (700) connected to the bus bar holder (200) and configured to press the support member (600) toward the battery cell (100).