EV Battery Housing Reinforcing Panel for Collision Impact Absorption
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing battery storage devices for electric vehicles face challenges in protecting battery modules from impact without increasing manufacturing costs and weight, as traditional closed cross-sectional structures are inadequate in absorbing direct impact energy.
Innovation Solution
A battery storage device with a reinforcing panel that includes a vibration absorption part made of elastic material and a panel part with rigid material, strategically positioned between the case and the battery module, to absorb and attenuate impact energy during collisions, thereby reducing damage to the battery module.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If closed cross-sectional structures are applied to battery housing to protect battery module from impact, then protection capability is improved, but manufacturing costs increase
Solution Approach 1:
The battery housing is divided into a case and a separate reinforcing panel. The reinforcing panel can be independently manufactured and then installed on the case, allowing for specialized impact protection without requiring the entire housing to be complex and expensive to manufacture.
Solution Approach 2:
The reinforcing panel uses a composite structure combining a vibration absorption part made of elastic material and a panel part made of rigid material. This composite material approach provides effective impact protection while maintaining manufacturing efficiency and cost-effectiveness.
2Strength
If thickness of battery housing is increased to secure strength, then impact resistance is improved, but weight increases
Solution Approach 1:
Instead of uniformly increasing the thickness of the entire battery housing, the reinforcing panel is applied locally to specific areas where impact protection is most needed. This localized approach provides necessary strength while minimizing additional weight.
Solution Approach 2:
The vibration absorption part uses elastic material that can deform to absorb impact energy, while the panel part uses rigid material for structural support. This composite material strategy achieves high impact resistance without requiring excessive thickness, thereby controlling weight.
3Strength
If closed cross-sectional structures are applied to battery housing, then structural strength is improved, but direct impact protection capability remains limited
Solution Approach 1:
The vibration absorption part acts as an intermediary between the external impact and the battery module. It absorbs and attenuates impact energy before it reaches the battery module, providing effective direct impact protection that complements the structural strength of the case.
Solution Approach 2:
The combination of elastic vibration absorption material and rigid panel material creates a composite structure that excels at absorbing direct impact energy, overcoming the limitation of traditional closed cross-sectional structures.
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 solution effectively reduces damage to the battery module during collisions, enhances vehicle stability, and lowers manufacturing costs by distributing and absorbing impact energy without increasing the weight or thickness of the battery housing.
Implementation Method 1
a vibration absorption part having an inner side facing the battery module, extending along the battery module, and having an elastic material that absorbs impact energy
Data Source
AI summary
A battery storage device for an electric vehicle includes a reinforcing panel that reduces impact energy and is disposed between a case and a battery module, whereby, when a car collision occurs, the battery module is protected from impact by the reinforcing panel, damage to the battery module is reduced, stability of the vehicle is secured, and manufacturing costs are reduced.