Battery Pack Support Rib Structure for Pole Collision Protection
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Solution Overview
Problem
The existing battery packs in vehicles face safety risks due to the potential for the battery poles to be damaged during collisions, as the deformation of the case can cause the pole to be squeezed.
Innovation Solution
A battery pack design that includes a support member between the top cover and the case, forming an avoidance part between the pole and the case. This support member, which can include various ribs and reinforcing structures, acts as a cushion and allows for deformation, thereby reducing the risk of pole damage during collisions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the case is designed to be rigid for structural strength, then the case can withstand external forces, but the pole may be damaged when the case deforms during collision
Solution Approach 1:
A support member is introduced as an intermediary component between the case and the pole. This support member absorbs collision forces and allows controlled deformation, preventing the case deformation from directly transmitting harmful forces to the pole. The support member acts as a buffer that decouples the structural strength function from the harmful deformation transmission.
Solution Approach 2:
The support member is pre-installed between the case and the pole to provide cushioning protection before any collision occurs. This pre-positioned cushioning structure is designed to deform preferentially during collisions, absorbing impact energy before it can reach the pole, thereby preventing pole damage while maintaining case structural integrity.
2Loss of energy
If the case is designed to deform during collision to absorb impact, then collision energy is reduced, but the deformation may squeeze the pole causing damage
Solution Approach 1:
The support member serves as a mediator that controls the deformation process. It allows the case to deform for energy absorption while simultaneously preventing this deformation from directly compressing the pole. The support member distributes and redirects the deformation forces away from the pole, enabling energy absorption without pole damage.
Solution Approach 2:
The support member is strategically positioned at the critical location between the case and the pole, providing localized protection. This local intervention allows the case to deform in other areas for energy absorption while the support member specifically protects the pole region from harmful compression forces.
Data Source
AI summary
A support member for a battery pack is provided. The battery pack includes a case and a cell component arranged in the case, and the cell component includes a top cover and a pole arranged on the top cover. The support member is configured to be arranged between the top cover and the case, to define an avoidance part between the pole and the case. The support member includes an upper support rib and a lower support rib connected with each other, the upper support rib is configured to abut against the top cover, and the lower support rib is configured to abut against the case.