Battery Case Cover Structure for Underbody Impact Mitigation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing vehicles lack effective mitigation of impacts from below on power storage devices, particularly in battery cases.
Innovation Solution
A vehicle design incorporating a power storage device with a lower case featuring downward protrusions and a cover member with upward protrusions, along with buffer members between these protrusions, to absorb and distribute impact forces effectively.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If buffer material is added to mitigate impact, then impact mitigation is improved, but device complexity increases
Solution Approach 1:
The battery case and cover member utilize their own structural features (outwardly protruding protrusions and upwardly protruding protrusions respectively) as the buffering elements. The cases themselves serve as the protective buffer through their protruding structures, eliminating the need for separate buffer materials and simplifying the overall structure.
Solution Approach 2:
The protective function is merged into the structural design of the battery case and cover member themselves. The protrusions are integrated features of the case and cover member rather than separate components, combining the structural support function with the impact mitigation function in a single unified design.
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 design effectively mitigates impacts from below on the power storage device by using protrusions and buffer members, enhancing rigidity and reducing impact transmission.
Implementation Method 1
both the first protrusion and the second protrusion function as a buffer material from below, so that an impact from below on the power storage device can be effectively mitigated
Data Source
AI summary
A vehicle includes a vehicle body, a power storage device, and a cover member. The power storage device includes a power storage module and a lower case. The lower case includes a first protrusion that protrudes downward toward the cover member, the lower case being configured to support the power storage module. The cover member includes a second protrusion that protrudes upward toward the lower case.