Vehicle Battery Rotating Structure for Collision Safety
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Solution Overview
Problem
Conventional battery supporting structures in vehicles are rigid and unable to rotate during a head-on collision, which fails to protect occupants' ankles and other components.
Innovation Solution
A vehicle battery rotating structure that includes a deformable battery supporting face, locking pieces, locking rods, and a pressure plate, allowing the battery to rotate by deforming into an inverted-V shape during a collision, with features like grooves, notches, and a bent portion to facilitate deformation and rotation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a rigid supporting member is used to support the battery receptacle, then the structural strength is improved, but the ability to rotate the battery during collision is lost
Solution Approach 1:
The supporting structure transitions from a static rigid configuration to a dynamic deformable one. The battery receptacle is designed with deformable portions that allow it to change shape during collision, enabling the battery to rotate from a horizontal to a vertical position. This dynamic response provides both structural support under normal conditions and rotation capability during collision events.
Solution Approach 2:
The structural parameters of the supporting member are changed by introducing deformable portions with specific geometric features (grooves, notches, bent portions). These parameter changes allow the structure to undergo controlled deformation under collision forces, transforming the rigid supporting member into a mechanism that can facilitate battery rotation while maintaining overall structural integrity.
2Adaptability or versatility
If the battery supporting face is made deformable to enable rotation, then the battery rotation capability is improved, but the structural stability is worsened
Solution Approach 1:
The battery supporting face is segmented into multiple functional regions: rigid portions that maintain overall structural stability, and deformable portions with grooves, notches, and bent portions that enable rotation. This segmentation allows different parts of the same structure to serve different functions - stability and rotation - simultaneously, resolving the contradiction between structural stability and rotation capability.
Solution Approach 2:
The supporting structure employs a composite design combining rigid and deformable portions within the same component. This composite approach allows the structure to exhibit both rigid behavior for stability and flexible behavior for rotation, depending on the applied forces and location within the structure.
3Reliability
If locking pieces and locking rods are added to secure the battery, then the battery fixation is improved, but the device complexity increases
Solution Approach 1:
The locking function is merged with the deformable supporting structure itself. The locking pieces are integrated into the battery receptacle, and the locking rods work in conjunction with the deformable portions. This merging eliminates the need for separate locking mechanisms, achieving reliable battery fixation while minimizing additional complexity.
Solution Approach 2:
The locking mechanism operates automatically through the deformation of the supporting face during collision. The geometric features (grooves, notches, bent portions) guide the locking pieces and rods into their locked positions without requiring external control systems or additional actuators. The structure itself provides the locking action through its controlled deformation.
Data Source
AI summary
A vehicle battery rotating structure is provided that allows a battery receptacle to be stably deformed at the time of a head-on collision to rotate a battery. A vehicle battery rotating structure 30 includes: a battery B that faces an engine-mounted part 12; a battery supporting face that is deformable into an inverted-V shape at the time of a head-on collision; a pair of battery locking pieces each of which is arranged on either side of the center in the front-rear direction of the battery supporting face; a pair of locking rods 41 that is locked in locking holes of the pair of battery locking pieces; and a pressure plate 42 that is connected to upper parts of the pair of locking rods 41.