Vehicle Battery Mounting Structure With Integrated End-Plate Support
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Solution Overview
Problem
There is a need for a battery mounting structure in eco-friendly vehicles that maximizes energy capacity while ensuring sufficient durability and safety within limited vehicle space, particularly addressing the challenge of accommodating battery modules efficiently and securely.
Innovation Solution
The proposed structure includes a case with parallel and perpendicular internal members to accommodate battery modules, where the second internal member functions as an end plate, eliminating the need for a conventional end plate and allowing for increased energy storage capacity, and incorporates an independent end plate for additional support, along with a battery controller insertion space that optimizes space usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of stationary object
If conventional end plates are used for battery modules, then structural support is provided, but vehicle interior space and energy storage capacity are reduced
Solution Approach 1:
The patent removes the conventional end plate from the battery module structure. Instead of using a separate end plate component, the case structure itself is designed to directly support the battery modules through its side wall portions and internal members, eliminating the need for additional end plates and thereby increasing vehicle interior space
Solution Approach 2:
The case structure is designed to perform multiple functions: it serves as both the enclosure for the battery modules and the structural support element that replaces the conventional end plates. The side wall portions of the case directly support the battery modules, combining the functions of enclosure and structural support into a single component
2Quantity of substance
If more battery modules are mounted to increase energy capacity, then energy storage increases, but structural stability and collision safety deteriorate
Solution Approach 1:
The case is divided into multiple internal members including first internal members extending in the longitudinal direction and second internal members extending in the lateral direction. These segmented structural elements work together to distribute and disperse collision forces across the entire battery assembly, maintaining structural stability while accommodating increased energy capacity
Solution Approach 2:
The case structure is pre-designed with specific geometric configurations and reinforcement features that are optimized to disperses collision forces before they can concentrate on individual battery modules. The structural design proactively addresses potential collision impacts by distributing forces across multiple load paths
3Volume of stationary object
If battery modules are tightly arranged to maximize space utilization, then energy capacity increases, but manufacturing complexity and assembly difficulty increase
Solution Approach 1:
The battery system is divided into modular battery modules that can be independently manufactured and assembled. The case contains internal members that create standardized mounting positions, allowing modules to be systematically arranged and assembled without requiring complex custom fittings for each configuration
Solution Approach 2:
The case structure with its internal members serves as a universal mounting platform that can accommodate different numbers and configurations of battery modules. The standardized structure allows for flexible assembly arrangements while maintaining space efficiency
Data Source
AI summary
A battery mounting structure for a vehicle is provided to include a case having a first internal member that is disposed to be spaced parallel to an upper side of a lower panel of the case and a second internal member that is disposed perpendicular to the first internal member, and configured to accommodate a plurality of battery modules therein using the first internal member and the second internal member. An outer side member is provided in a shape protruding toward the outside on an outer side of the case. The battery modules are disposed in a stacking direction of battery cells that is parallel to a longitudinal direction of the first internal member.