Battery Module Fixing Members Assembly Coupling Structure
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Solution Overview
Problem
Existing battery modules require numerous mechanical fastening and electrical connection parts, leading to complex assembly processes, increased size, weight, and manufacturing costs, particularly in large-sized devices where compactness is essential.
Innovation Solution
A battery module design featuring a battery cell array with integrally coupled fixing members using an assembly type coupling structure, where each fixing member is connected via insert injection molding, eliminating the need for additional fastening means and allowing stable stacking without increasing volume or weight.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple mechanical fastening members and electrical connection members are used to connect battery cells, then the battery module achieves stable stacking and electrical connection, but the assembly process becomes complicated and the number of parts increases
Solution Approach 1:
The patent combines multiple separate functions (mechanical fastening and electrical connection) into a single integrated fixing member. This fixing member simultaneously provides structural support for stable stacking and electrical connection pathways, eliminating the need for separate mechanical fasteners and electrical connectors. The integration reduces the total number of parts and simplifies the assembly process while maintaining both structural stability and electrical connectivity.
Solution Approach 2:
The fixing member is designed as a multi-functional component that performs multiple roles: it acts as a mechanical fastener for stable stacking, provides electrical connection between battery cells, and offers structural support. This universal component replaces several specialized parts with a single element that fulfills all necessary functions, thereby reducing complexity without compromising reliability.
2Reliability
If multiple separate members for mechanical fastening and electrical connection are used, then the battery cells can be securely connected, but the overall size and weight of the battery module increase
Solution Approach 1:
By merging the mechanical fastening function and electrical connection function into a single fixing member, the patent eliminates the weight of separate fasteners and connectors. The integrated design reduces the total material required while maintaining secure connection and electrical conductivity between battery cells.
3Reliability
If multiple separate members for mechanical fastening and electrical connection are used, then the battery cells can be securely connected, but the manufacturing cost increases
Solution Approach 1:
The integration of multiple functions into a single fixing member reduces the total number of parts that need to be manufactured, stored, and assembled. This simplification reduces manufacturing complexity, lowers inventory requirements, and decreases assembly time, all of which contribute to reduced manufacturing costs while maintaining connection stability.
4Reliability
If additional space is allocated for coupling and welding of mechanical fastening and electrical connection members, then secure connection is achieved, but the total system size increases
Solution Approach 1:
The patent eliminates the need for separate coupling and welding spaces by integrating the electrical connection function directly into the fixing member structure. This integration allows the connection to be made in-situ without requiring additional clearance for separate fasteners and connectors, thereby reducing the overall volume required for the battery module assembly.
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 assembly process, reduces the number of parts, and enhances structural stability while maintaining compactness, thereby improving manufacturing efficiency and reducing costs.
Implementation Method 1
fixing members, each of which is integrally coupled to a portion or the entirety of an outer edge of a corresponding one of the battery cells by insert injection molding
Data Source
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AI summary
Disclosed herein is a battery module including a battery cell array including two or more stacked battery cells, each of which is configured to have a structure in which an electrode assembly, including a cathode, an anode, and a separator disposed between the cathode and the anode, is received in a battery case together with an electrolyte in a sealed state, and fixing members, each of which is integrally coupled to a portion or the entirety of an outer edge of a corresponding one of the battery cells, each of the fixing members being provided with an assembly type coupling structure, by which the fixing members are coupled to each other such that the battery cell array forms a stable stack structure.