Battery Pack Partition Plate Structure for Swelling Pressure Absorption
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Solution Overview
Problem
The manufacturing process of battery packs is complicated and inefficient, and there is a risk of secondary damage due to battery module swelling, which occurs when gases are generated due to overcharging or heat exposure.
Innovation Solution
A battery pack case with a modular structure featuring a partition plate that includes a first member forming the outer surface and a second member diagonally connected to the inner surface, with diagonal members meeting at a point and supported by third members, designed to absorb pressure from swelling battery modules.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the battery pack is manufactured depending on its product, use, and purpose according to specific equipment and facilities, then the battery pack can be customized for different applications, but the manufacturing process becomes complicated and manufacturing process efficiency is deteriorated
Solution Approach 1:
The partition plate is divided into a first member forming the outer surface and a second member disposed inside the first member, with the second member connected diagonally to the inner surface. This segmentation allows the partition plate to be manufactured as a modular component that can be adapted to different battery pack configurations without requiring complete redesign of the entire partitioning system, thus maintaining customization capability while improving manufacturing efficiency.
2Ease of manufacture
If a simple partition plate structure is used, then manufacturing is easier and more efficient, but the structure cannot effectively prevent secondary damages due to battery module swelling
Solution Approach 1:
The second member is disposed in a diagonal direction with respect to the outer surface of the first member, creating a three-dimensional reinforcement structure within the partition plate. This diagonal arrangement in the internal dimension provides enhanced structural strength and swelling resistance without increasing the external dimensions or complexity of the partition plate, allowing the plate to maintain simplicity while effectively preventing secondary damages from battery module swelling.
3Reliability
If a robust swelling prevention structure is added to the battery pack case, then protection against battery swelling is improved, but the device complexity and manufacturing cost increase
Solution Approach 1:
The partition plate merges the functions of structural division and swelling prevention into a single integrated component. The first member provides the primary partitioning function while the second member, disposed inside and connected diagonally, provides reinforcement against swelling. This merging eliminates the need for separate swelling prevention structures, reducing overall device complexity while maintaining robust protection capabilities.
Data Source
AI summary
A battery pack case according to an embodiment of the present disclosure includes a housing having an accommodation space therein, and a partition plate disposed in the accommodation space to partition the accommodation space, wherein the partition plate may include a first member forming an outer surface of the partition plate, and a second member disposed inside the first member and connected to an inner surface of the first member, the second member being disposed in a diagonal direction with respect to an outer surface of the first member.