Center Floor Panel Tunnel for High Voltage Wire Routing
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Solution Overview
Problem
In electric vehicles, there is insufficient space for arranging high voltage wires, which increases the risk of damage during collisions and compromises the vehicle body's rigidity when imprudent modifications are made to accommodate these wires.
Innovation Solution
A center floor panel design featuring a 'U'-shaped tunnel portion with convex sections and extended portions that create a hollow space for the high voltage wire, connected to the dash panel and rear crossmember, ensuring secure placement and maintaining vehicle body rigidity through strategically positioned crossmembers and side sills.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If the high voltage wire is mounted in the side sill together with other components, then the space utilization is improved, but the risk of damage from impact energy during offset collision increases
Solution Approach 1:
The high voltage wire is extracted from the side sill and relocated to a dedicated tunnel portion formed in the center floor panel. This separation places the wire in a protected environment away from collision zones, eliminating the risk of impact damage while maintaining proper routing and connection between battery and drive motor.
Solution Approach 2:
A tunnel portion is introduced as an intermediary structure within the center floor panel to house and protect the high voltage wire. This tunnel acts as a protective conduit that shields the wire from external impacts while allowing it to pass through the vehicle structure safely.
2Quantity of substance
If the floor panel is transformed to create space for the high voltage wire, then the space for wire arrangement is improved, but the rigidity of the vehicle body deteriorates
Solution Approach 1:
The tunnel portion is formed locally within the center floor panel using a convex upward shape of the floor tunnel portion. This localized modification creates the necessary space for the high voltage wire while minimizing impact on the overall structural integrity of the vehicle body. The tunnel is positioned specifically in the center floor area where it does not compromise critical load-bearing structures.
Solution Approach 2:
The tunnel portion utilizes the vertical dimension by forming a convex upward shape in the floor tunnel portion. This three-dimensional approach creates space for the high voltage wire within the existing floor panel thickness, avoiding the need to reduce panel thickness or alter the overall floor structure, thereby preserving vehicle body rigidity.
3Ease of operation
If a tunnel is formed in the center floor panel for the propeller shaft in traditional vehicles, then the mechanical component routing is improved, but the floor panel rigidity is reduced
Solution Approach 1:
The tunnel portion is formed locally within the center floor panel using a convex upward shape of the floor tunnel portion. This localized modification creates the necessary space for the high voltage wire while minimizing impact on the overall structural integrity of the vehicle body. The tunnel is positioned specifically in the center floor area where it does not compromise critical load-bearing structures.
Solution Approach 2:
The center floor panel is formed as an integrated composite structure combining the floor panel material with the tunnel portion. This unified construction allows the tunnel to be formed as part of the original panel manufacturing process, maintaining material continuity and structural strength while providing the necessary routing space.
Data Source
AI summary
A vehicle center floor panel is provided. A front end thereof is connected with a dash panel partitioning a front body of the vehicle and a vehicle interior room. A rear end thereof is connected with a rear crossmember disposed at a front end of a rear body to be crossed in a width direction of the vehicle. The center floor panel includes center floor members that have a U-shaped floor tunnel portion and a floor side extended portion formed integrally with the floor tunnel portion to extend toward sides from the floor tunnel portion, and spaced apart in a front and rear direction of the vehicle. Center crossmembers include a U-shaped cross tunnel portion to connect the floor tunnel portions and a cross side extended portion combined to the cross tunnel portion from both sides in a width direction of the vehicle to connect the floor side extended portions.