Automobile Battery Protection via Segmented Floor Structure
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Solution Overview
Problem
Existing electric vehicle designs fail to effectively distribute and absorb the impact force from side-impact collisions, leading to substantial deformation of the floor panel and potential damage to the automobile battery.
Innovation Solution
The proposed automobile battery protection structure includes a middle channel with symmetrically disposed protection components comprising a vehicle door sill, seat beam assembly, floor panel, and longitudinal beam, which absorb and distribute the impact force through multiple pathways, reducing the risk of battery damage by minimizing floor panel deformation and enhancing the overall structural rigidity with a frame structure and reinforcement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the floor panel is connected directly between the vehicle door sill and the middle channel, then the structure is simple, but the impact force cannot be transferred and released promptly causing substantial deformation
Solution Approach 1:
The floor panel connection structure is segmented into multiple components: the floor panel itself, the seat beam assembly (comprising outer reinforcing plate, seat beam, and inner reinforcing plate), and the middle channel reinforcing plate. This segmentation creates multiple independent load transfer pathways that can efficiently distribute and release impact forces, preventing substantial deformation while maintaining reasonable structural complexity.
2Device complexity
If the seat beam assembly and floor panel are connected to the middle channel at the same location, then the structure is compact, but the impact force distribution is insufficient
Solution Approach 1:
The seat beam assembly and floor panel are connected to the middle channel at different heights (different vertical dimensions). The seat beam assembly connects at the upper side of the middle channel, while the floor panel connects at the bottom side. This vertical separation creates a three-dimensional load distribution network that significantly enhances impact force distribution capability while maintaining structural compactness.
3Device complexity
If the battery is disposed directly under the middle channel without additional protection, then the device complexity is low, but the battery is vulnerable to floor panel deformation
Solution Approach 1:
The middle channel reinforcing plate is pre-installed at the bottom of the middle channel before potential impact occurs. This reinforcing plate acts as a protective barrier that prevents floor panel deformation from directly transmitting to the battery. By providing this protective measure in advance, the battery is shielded from damage while avoiding the need for complex active protection systems.
Data Source
AI summary
An automobile battery protection structure includes a middle channel; two protection components symmetrically disposed on the left and right of the middle channel. Each of the protection components includes a vehicle door sill, a seat beam assembly, a floor panel, and a longitudinal beam. One end of the seat beam assembly is attached to the upper part of the vehicle door sill, and the other end of the seat beam assembly attached to the upper side of the middle channel. One end of the floor panel is attached to the lower part of the vehicle door sill, and the other end of the floor panel is attached to the bottom side of the middle channel. The longitudinal beam is located under the floor panel, and longitudinally extending through the vehicle body. A car battery pack disposed under the middle channel.