CMU Mounting on Battery Module End Plate
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Solution Overview
Problem
Conventional battery packs face reduced space utilization and increased manufacturing complexity due to the separate mounting and fastening of Cell Monitoring Units (CMUs), which also lead to lower energy density and potential performance deterioration of battery cells from inadequate temperature monitoring.
Innovation Solution
A battery module design featuring a CMU mounting part on an end plate, allowing for easy and convenient CMU integration, using a combination of thermal fusion, bolted, and snap-fit connections to secure the CMU, and incorporating a thermally conductive resin layer for improved heat management, thereby enhancing compatibility and space efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the CMU is mounted separately from the battery module and fastened using bolts or other fastening members, then the CMU can be securely fixed, but the assembly process becomes more complex and time-consuming
Solution Approach 1:
The CMU is integrated directly into the battery module structure, merging the monitoring unit with the module housing. This eliminates the need for separate mounting brackets and fastening members, reducing assembly complexity while maintaining secure fixation through the unified structural design
Solution Approach 2:
The battery module housing serves multiple functions: it provides structural containment for battery cells and simultaneously acts as the mounting structure for the CMU. This multi-functionality reduces the number of separate components needed and simplifies the overall assembly process
2Reliability
If a separate space is allocated inside the battery pack to accommodate the CMU, then the CMU can be properly housed, but the space utilization of the battery pack is reduced and energy density is lowered
Solution Approach 1:
The CMU is integrated into the battery module housing rather than being housed in a separate space within the battery pack. This merging of functions allows the CMU to occupy space that is already allocated for the battery module structure, eliminating the need for additional dedicated CMU housing space and thereby improving overall space utilization and energy density
3Ease of manufacture
If the CMU is integrated directly into the battery module with simplified mounting, then the manufacturing process is simplified and space utilization is increased, but additional fastening structures may be needed on the end plate
Solution Approach 1:
The end plate is pre-formed with integrated fastening structures (such as ribs or protrusions) during the molding process. This preliminary action eliminates the need for post-assembly fastening operations, simplifying the manufacturing process while the added structural features are minimal and incorporated into the base design
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
This design simplifies the manufacturing process, increases space utilization within the battery pack, improves energy density, and ensures effective temperature monitoring to prevent performance deterioration and safety risks.
Implementation Method 1
incorporating a thermally conductive resin layer for improved heat management
Data Source
AI summary
Provided are a battery module and a battery pack including the same, and more particularly, a battery module in which a CMU (cell monitoring unit) may be easily and conveniently mounted by providing a CMU mounting part, on which the CMU may be mounted, on an end plate constituting a module case, and a battery pack capable of simplifying the entire manufacturing process of the battery pack and increasing space utilization inside the battery pack by applying the battery module to the battery pack.