Battery Module Hold-Down Bracket With Closed-Loop Reinforcement
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Solution Overview
Problem
There is a need for a battery pack with improved structural safety and a fastening structure that can securely hold battery modules within the restricted space of the pack while maintaining durability.
Innovation Solution
A battery pack design featuring a hold down bracket with a first and second fastening part, a connection part, and a reinforcing member forming a closed structure, which provides enhanced rigidity by coupling the connection part and reinforcing member in a double plate configuration, allowing for secure fastening of battery modules within the pack frame.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If a battery module fastening structure is designed to fit within the restricted space of the battery pack, then the spatial utilization is improved, but the structural rigidity and safety may be compromised
Solution Approach 1:
The hold down bracket transitions from a planar structure to a three-dimensional closed-loop structure by adding a reinforcing member that connects the first and second coupling parts. This spatial transformation allows the bracket to maintain compact dimensions while achieving enhanced structural rigidity through the closed-loop configuration, effectively resolving the contradiction between space utilization and structural strength
Solution Approach 2:
The hold down bracket is constructed as a composite structure combining multiple functional components: coupling parts for attachment, a connection part for structural continuity, and a reinforcing member for enhanced rigidity. This composite design allows each component to contribute its specific function while working together to achieve both compact size and high structural strength within the limited battery pack space
2Adaptability or versatility
If various internal components are integrated inside the battery pack, then the functional completeness is improved, but the structural safety and fastening rigidity deteriorate due to spatial constraints
Solution Approach 1:
The battery pack structure is segmented into distinct functional zones: the hold down bracket system for mechanical fastening, the battery module for energy storage, and space for control/protection systems. The hold down bracket itself is segmented into coupling parts, connection parts, and reinforcing members, each performing specific functions. This segmentation allows the integrated system to maintain structural safety while accommodating multiple functional components within the compact battery pack volume
Data Source
AI summary
A battery pack includes a battery module including a plurality of battery cells; a pack frame for housing the battery module; and a hold down bracket for fixing the battery module to the pack frame, wherein the hold down bracket comprises a first fastening part fastened to the battery module; a second fastening part fastened to the pack frame; a connection part for connecting the first coupling part and the second coupling part; and a reinforcing member coupled to the connection part, and wherein the connection part and the reinforcing member coupled with each other have a closed structure.