Battery Module Front Cover Plate BMS Terminal Protrusion
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing battery module assemblies face challenges in easily extending and connecting communication units between battery modules, which hinders the efficient control and protection of battery packs due to the difficulty in interconnecting sub-BMS communication terminals.
Innovation Solution
A battery module assembly design where communication terminals of the BMS are protruded from a front cover plate, allowing for easy extension and connection between modules, with sub-modules arranged laterally and stacked in a height direction, and secured by a base and side cover plates, enabling stable and secure electrical connections.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If sub-BMS is mounted inside each battery module, then the battery module can be controlled and protected, but it becomes difficult to interconnect communication terminals between modules
Solution Approach 1:
The communication terminals are extracted from the internal mounting space and extended outward through the front cover plate. This allows the communication function to be maintained while enabling external connection, resolving the contradiction between having the BMS mounted inside and being able to connect communication terminals.
Solution Approach 2:
The front cover plate serves as an intermediary structure that houses the communication terminals and provides an external interface. It mediates between the internal BMS mounting requirement and the external communication connection requirement, allowing both functions to coexist.
2Device complexity
If communication terminals are mounted inside battery modules, then the structure is compact, but extension and connection between modules becomes difficult
Solution Approach 1:
The communication terminals are preliminarily positioned within the front cover plate during assembly, but are designed to extend outward to enable future connections. This preliminary positioning maintains structural compactness while preparing for subsequent extension and interconnection operations.
Solution Approach 2:
The communication terminals utilize the front surface dimension of the battery module by extending through the front cover plate. This adds a dimensional aspect to the communication interface that enables external connections without compromising the internal structural compactness.
Data Source
Figure 1~2
Figure 3
Figure 4
AI summary
Disclosed herein is a battery module assembly having unit modules, each of which is configured to have a structure in which unit cells are loaded on a cartridge in a state in which the unit cells are electrically connected to each other via busbars, the battery module assembly including two or more sub-modules arranged in a lateral direction while being spaced apart from each other, each of the sub-modules including two or more unit modules that are stacked in a height direction from the ground, a battery management system (BMS) mounted in a space defined between the sub-modules, the BMS being provided at one side thereof with communication terminals, a base plate on which the sub-modules and the BMS are loaded, side cover plates mounted at sides of the sub-modules, a top cover plate loaded on top surfaces of the sub-modules, the top cover plate being coupled to the sub-modules and to the side cover plates by fastening, and a front cover plate mounted at fronts of the sub-modules, the front cover plate being coupled to the sub-modules, the base plate, and the side cover plates, the front cover plate being provided with through holes, through which the communication terminals are exposed.