Battery Pack Support Plate Layout for Substrate Force Dispersion
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Solution Overview
Problem
Existing battery packs face challenges in protecting the protective circuit module from damage due to external forces, particularly when the substrate and protective elements are subjected to mechanical stress during assembly or use.
Innovation Solution
A battery pack design that includes a support plate with multiple partial support portions spaced apart in a horizontal direction, supporting a substrate and protective element, which disperses external forces and prevents damage to the substrate and protective elements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a continuous support plate is used to support the substrate, then the substrate is well-supported, but external forces are concentrated at specific points causing damage to the substrate or protective elements
Solution Approach 1:
The support plate is divided into multiple discrete partial support portions spaced apart from each other. This segmentation allows the support structure to distribute external forces across multiple contact points rather than concentrating them, while still providing adequate support to the substrate and protective elements
2Strength
If the support plate fully covers the substrate, then maximum support is provided, but the protective elements cannot be properly arranged and accessed
Solution Approach 1:
The support plate provides support only at specific locations where partial support portions are positioned, rather than continuous coverage. This localized support approach maintains substrate strength while leaving sufficient space for arranging and accessing protective elements on the substrate surface
3Strength
If a thick support plate is used to prevent damage, then mechanical strength is improved, but the battery pack height increases
Solution Approach 1:
The support function is achieved through multiple discrete partial support portions rather than a single thick continuous plate. This segmented approach provides adequate mechanical strength and force distribution while maintaining a compact overall height for the battery pack
Data Source
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AI summary
Provided is a battery pack. The battery pack comprises a battery cell extending in a vertical direction and comprising a plurality of electrode tabs, a substrate on which a protective element is arranged, the substrate being fixed to an upper end of the battery cell and electrically connected to the plurality of electrode tabs, and a support plate that is disposed between the battery cell and the substrate and that supports the substrate, wherein the support plate comprises at least two partial support portions that are spaced apart from each other in a horizontal direction, the horizontal direction crossing the vertical direction.