Battery Pack Side-Wall Reinforcement Beam for Strength Retention
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional battery packs face challenges in enhancing side strength without compromising energy efficiency or requiring significant structural changes to meet varying customer needs.
Innovation Solution
A reinforcement beam with multiple ribs and a hollow structure is inserted into the side walls of the pack case, providing additional support and strength while maintaining energy efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the thickness of the side walls is increased to improve the strength, then the side strength is improved, but the energy efficiency of the battery is reduced
Solution Approach 1:
The reinforcement beam is inserted into the hollow interior of the side wall, creating a nested structure where one component (reinforcement beam) is placed inside another (side wall). This allows the side wall to maintain its original thin profile for energy efficiency while the internal reinforcement beam provides the necessary structural strength.
Solution Approach 2:
The side wall structure combines the hollow side wall material with the reinforcement beam material to create a composite structure. This composite design provides enhanced strength characteristics while maintaining the original side wall thickness, avoiding the energy efficiency penalties associated with thicker walls.
2Strength
If the shape of the pack case is changed to improve the strength according to customer needs, then the side strength is improved, but the manufacturing efficiency is decreased
Solution Approach 1:
The strength enhancement function is separated from the main pack case structure by using a distinct, removable reinforcement beam component. This segmentation allows the pack case to maintain a standardized design for efficient manufacturing, while the reinforcement beam can be selectively added to meet specific strength requirements without requiring custom tooling or process changes.
Solution Approach 2:
Instead of changing the overall shape of the pack case, the reinforcement beam provides localized strength enhancement only in specific areas where additional strength is needed. This allows standardized pack case manufacturing while addressing local structural weaknesses through targeted reinforcement.
Data Source
AI summary
A pack case includes a base plate supporting a lower part of the battery modules, and side walls coupled to along the edge of the base plate and side walls coupled to the base plate to separate a space in which the battery modules are accommodated; top cover coupled the pack case to cover a battery module accommodated in the pack case; and a reinforcement beam inserted into at least one of the side walls and separation walls. The reinforcement beam includes at least two side-by-side reinforcement members in the form of columns having a plurality of ribs protruding and formed, and provides a battery pack.