Battery Module Cell Detector Layout for Thermal Venting Clearance
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing battery modules face challenges in thermal stability, assembly ease, and space efficiency due to the size reduction of Cell Monitoring Units (CMUs) and the addition of wireless communication modules, which increases assembly difficulty and cost.
Innovation Solution
A battery module design with a cell detector located in a first area and supported by a protruding support portion, utilizing a flexible connection member and a hook-coupling mechanism, allowing for efficient assembly and thermal management by positioning the cell detector away from venting paths during thermal runaway.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the cell detector is positioned close to the battery cells to improve measurement accuracy, then measurement precision is improved, but the cell detector may interfere with the venting path of gas during thermal runaway
Solution Approach 1:
The patent positions the cell detector in a first area on the side of the battery cells rather than directly above or below them, utilizing lateral spatial arrangement to maintain measurement capability while avoiding the vertical venting path of gas during thermal runaway
2Volume of moving object
If the CMU size is reduced to improve space efficiency, then space utilization is improved, but assembly difficulty and assembly cost increase
Solution Approach 1:
The cell detector is designed as a separate, modular component that can be independently assembled onto the battery module, allowing for simplified manufacturing and assembly processes even when the overall CMU size is reduced
Solution Approach 2:
The cell detector is pre-positioned in a first area on the side of the battery cells during the design phase, establishing an optimal location that facilitates both compact integration and straightforward assembly operations
3Stability of the object's composition
If a partition structure completely separates battery modules to improve thermal stability, then thermal stability is improved, but wireless communication components increase the overall size
Solution Approach 1:
The cell detector is extracted as a separate functional component from the main CMU, allowing it to be positioned in the first area near the battery cells while the main CMU can be compactly integrated with the partition structure, thus maintaining thermal stability without excessive size increase
Data Source
Figure 1~2
Figure 3
Figure 4~5
AI summary
The present disclosure relates to a battery module, a battery pack including the same, and an assembling method of the battery pack. The battery module includes a plurality of battery cells arranged in a predetermined stacking direction, a busbar electrically connecting the plurality of battery cells, a sensor electrically connected to the plurality of battery cells through the busbar, and a cell detector measuring voltages or currents in the plurality of battery cells by the sensor, wherein the cell detector is arranged in a first area provided on a side of the plurality of battery cells.