Fiber-Reinforced Battery Pack Case for Collision Protection
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing battery pack cases for electric vehicles fail to adequately protect batteries from damage during collisions while also aiming to reduce the weight of the battery pack.
Innovation Solution
A battery pack case design incorporating a tray, battery-holding member, and cover made from fiber-reinforced plastic, with additional reinforcing members such as metal plates or fiber-reinforced tapes, to absorb shock and distribute impact forces effectively.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Weight of moving object
If a lightweight plastic composite material is used for the battery pack case, then weight is reduced and rigidity is improved, but collision protection capability deteriorates
Solution Approach 1:
The patent applies composite materials by combining fiber-reinforced plastic (integrating reinforcement fibers into the plastic matrix) with metal plates and foam materials to create a multi-material structure that achieves both lightweight properties and enhanced collision protection capability
Solution Approach 2:
The patent applies local quality by strategically placing metal plates at high-stress areas (front and rear portions of the case) and using foam materials specifically in collision-prone regions, rather than uniformly reinforcing the entire case structure
2Stability of the object's composition
If fiber-reinforced plastic is used in the battery pack case, then rigidity and dimensional stability are improved, but manufacturing complexity increases
Solution Approach 1:
The patent applies segmentation by dividing the battery pack case into multiple separate components (case body, cover, metal plates, foam materials) that can be manufactured independently and then assembled, reducing the manufacturing complexity of the fiber-reinforced plastic structure while maintaining dimensional stability
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
The design effectively reduces battery damage during collisions, including side collisions, while also achieving weight reduction, as demonstrated by improved performance in simulation tests.
Implementation Method 1
fiber-reinforced plastic containing two or more types of fibers selected from glass fiber, aramid fiber, carbon fiber, ZYLON (registered trademark) fiber, polyethylene fiber, and boron fiber
Data Source
AI summary
A battery pack case which is used for forming a battery pack that is mounted at an electric vehicle, the battery pack case comprising: a tray that is attached to a body of an electric vehicle; a battery-holding member for holding a battery, the battery-holding member being attached onto at least a part of the tray; and a cover that covers the tray and the battery-holding member from above, wherein at least two of the tray, the battery-holding member, or the cover contain a fiber-reinforced plastic.