Battery Support Structure for Side-Collision Load Detouring
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Solution Overview
Problem
Existing vehicle battery support structures fail to effectively protect batteries mounted under side rails during a side collision, leading to potential damage.
Innovation Solution
A vehicle battery support structure comprising a ladder frame, battery pack, battery bracket, suspension bracket, and shock absorbing component, where the suspension bracket with a bent portion detours around the battery pack during a collision, and the shock absorbing component transmits collision loads to the ladder frame, distributing the impact to prevent battery damage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the battery is disposed under the side rails to increase battery mounting space, then the battery can be positioned to the outer side in the vehicle width direction, but the battery becomes vulnerable to damage in the event of a side collision
Solution Approach 1:
The patent introduces a suspension bracket as an intermediary component between the battery bracket and the side rail. This suspension bracket includes a bent portion that acts as a mediator to redirect collision forces away from the battery pack, allowing the battery to be positioned under the side rail while protecting it from direct collision impact
Solution Approach 2:
The support structure is segmented into multiple functional components: battery bracket for mounting, suspension bracket with bent portion for force redirection, and shock absorbing component for energy dissipation. This segmentation allows each component to perform its specific function in protecting the battery while maintaining the space-efficient under-rail positioning
2Object-affected harmful factors
If a shock absorbing component is added to protect the battery during side collision, then collision damage to the battery is suppressed, but the device complexity increases
Solution Approach 1:
The patent merges multiple protective functions into an integrated suspension bracket assembly that combines the mounting function with the force-redirection function. The bent portion is integrated into the bracket structure itself rather than being a separate component, reducing overall complexity while maintaining protective capabilities
Solution Approach 2:
The suspension bracket serves multiple functions simultaneously: it mounts the battery bracket to the side rail, redirects collision forces through its bent portion, and works with the shock absorbing component to protect the battery. This multi-functionality reduces the need for separate protective components
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 structure effectively suppresses damage to the battery pack by diverting collision loads through the suspension bracket and shock absorbing component, ensuring the battery's integrity during a side collision.
Implementation Method 1
the shock absorbing component receives a collision load in the event of a side collision of the vehicle. Further, the collision load is transmitted to the ladder frame via the battery bracket and the suspension bracket
Implementation Method 2
As the side collision progresses, the suspension bracket is bent and deformed at the bent portion. When the bent portion is disposed at a height equal to or higher than the upper surface of the battery pack, the suspension bracket is bent and deformed so as to detour around the battery pack
Data Source
AI summary
In the vehicle battery support structure, the battery pack is disposed below the ladder frame. The battery bracket is fixed to a vehicle width direction outer side of the battery pack. The suspension bracket is secured to the battery bracket. The suspension bracket includes a horizontal portion and an inclined portion. The horizontal portion extends in the vehicle width direction from an outer side in the vehicle width direction of the side rail. The inclined portion extends outward and downward in the vehicle width direction from an outer end of the horizontal portion in the vehicle width direction. The shock absorbing component is disposed on the vehicle width direction outer side of the battery bracket.