Vehicle Floor Patch Component Reinforcement for Bottom Panel Rigidity
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Solution Overview
Problem
Existing vehicle bottom structures lack reinforcement between the front and rear seats, leading to potential deformation under load from child chairs or falling objects, compromising the rigidity of the floor bottom panel and overall vehicle body.
Innovation Solution
A vehicle bottom structure featuring a floor bottom panel with a patch component positioned between first and second cross members, extending between the side beams, which includes longitudinal and transverse convex strips for enhanced load distribution and rigidity, specifically designed to bear loads and prevent deformation between the front and rear seats.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If cross members are disposed to enhance bottom rigidity, then the rigidity of the vehicle body is improved, but there is no reinforcement structure between the front seats and the rear seats, leading to potential deformation of the floor bottom panel
Solution Approach 1:
The reinforcement structure is segmented into multiple components: side beams extending along the vehicle front-back direction, cross members extending along the vehicle width direction, and patch components filling the gaps between them. This segmentation allows the structure to provide comprehensive reinforcement across different areas of the floor bottom panel, particularly between the front and rear seats, thereby preventing deformation while maintaining overall vehicle body rigidity.
Solution Approach 2:
Patch components are strategically disposed at specific locations where the floor bottom panel is most vulnerable to deformation, namely between the front seats and rear seats. These patch components locally enhance the rigidity and resistance to deformation in critical areas without unnecessarily increasing the complexity of the entire vehicle bottom structure.
2Reliability
If patch component is disposed between first cross member and second cross member, then the load is distributed to suppress deformation of the bottom panel portion, but the structural complexity increases
Solution Approach 1:
The patch components are merged with the existing cross member and side beam structure through joining portions. This merging approach allows the patch components to be integrated into the overall reinforcement structure, distributing loads effectively to suppress deformation of the bottom panel portion while minimizing the increase in structural complexity by utilizing existing structural elements for connection.
Data Source
AI summary
A vehicle bottom structure includes: a floor bottom panel, including a floor tunnel portion and a bottom panel portion; side beams, disposed on an outer side of the floor bottom panel in a vehicle width direction, and extending along a vehicle front-back direction; first and second cross members, respectively disposed on a central side and a back end side of the floor tunnel portion in the vehicle front-back direction, and extending along the vehicle width direction; and a patch component, disposed between the first and second cross members. The floor tunnel portion is disposed on a central side between the side beams in the vehicle width direction, and extends along the vehicle front-back direction. The bottom panel portion is disposed between the side beams and the floor tunnel portion. Part of the patch component overlaps a central side of the bottom panel portion in the vehicle width direction.