Battery Module Assembly Using Extended Bus Bar Terminals
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Solution Overview
Problem
The existing battery module assembly process is time-consuming due to the separate manufacturing and assembly of bus bars, which increases the complexity and duration of the manufacturing process.
Innovation Solution
Incorporating a bus bar directly into the battery module design, where the first input/output terminal extends from the module case and includes a recess portion to connect with adjacent modules, reducing the need for additional bus bars and simplifying the assembly by allowing modules to be connected internally.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a separate bus bar is manufactured and assembled to the battery module using bolts and nuts, then reliable electrical connection between battery modules is achieved, but the manufacturing process time and complexity increase
Solution Approach 1:
The patent merges the bus bar function directly into the module case structure by providing a bus bar extension that protrudes from the module case. This integration eliminates the need for separate bus bar components and their associated fastening hardware, thereby reducing assembly steps and manufacturing time while maintaining reliable electrical connection between battery modules.
2Reliability
If a separate bus bar is manufactured and assembled to the battery module using bolts and nuts, then reliable electrical connection between battery modules is achieved, but the device complexity increases
Solution Approach 1:
The patent merges the bus bar function directly into the module case structure by providing a bus bar extension that protrudes from the module case. This integration eliminates the need for separate bus bar components and their associated fastening hardware, thereby reducing assembly steps and manufacturing time while maintaining reliable electrical connection between battery modules.
Data Source
AI summary
An embodiment of the invention provides a battery module assembly, including: a first battery module including a first module case housing a plurality of battery cells, and a first input/output terminal and a second input/output terminal that are provided at one side of the first module case; and a second battery module including a second module case housing a plurality of battery cells, and a first input/output terminal and a second input/output terminal that are provided at one side of the second module case. The first input/output terminal of the first battery module may be formed by extending a first module bus bar connected to at least one of the plurality of battery cells inside the module case, and may extend to the second input/output terminal of the second battery module to be connected to the second input/output terminal.