Battery Box Protrusion Layout for Vibration-Resistant Module Support
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Solution Overview
Problem
Battery boxes in electric vehicles are prone to deformation due to vibration impacts, leading to damage to the battery modules and affecting their normal operation.
Innovation Solution
A battery box design featuring protrusions on the bottom plate that support the battery module, arranged in an array to enhance structural strength and reduce deformation, combined with a metal material like aluminum alloy or stainless steel for improved durability and corrosion resistance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the battery box uses a simple bottom plate structure, then the manufacturing cost is low, but the structural strength is insufficient and deformation occurs under vibration impact
Solution Approach 1:
The bottom plate is segmented into multiple protrusions that are distributed across the surface. Each protrusion acts as an independent support element, collectively providing enhanced structural strength without requiring a completely complex overall structure. The protrusions divide the load-bearing function across multiple locations.
Solution Approach 2:
The design transitions from a two-dimensional flat bottom plate to a three-dimensional structure with protrusions extending upward. This dimensional change adds vertical support elements that increase structural strength and rigidity while maintaining the fundamental simplicity of the bottom plate configuration.
2Strength
If the bottom plate is made thicker to increase strength, then the structural strength improves, but the weight increases
Solution Approach 1:
Instead of uniformly thickening the entire bottom plate, the structure is segmented into protrusions that provide localized reinforcement. This segmented approach concentrates material where needed for strength while leaving other areas lighter, reducing overall weight compared to a uniformly thick plate.
Solution Approach 2:
The bottom plate exhibits local quality variations through the protrusions, which concentrate material and strength at specific locations where support is needed. The rest of the bottom plate can remain thinner, optimizing the weight-strength ratio by having different thicknesses in different regions.
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 enhances the structural integrity of the battery box, protecting the battery module from deformation and ensuring normal operation while reducing weight and production costs, and offering corrosion resistance and thermal conductivity.
Implementation Method 1
a top portion of each of the protrusions is configured to contact a bottom portion of the battery module to lift the battery module
Implementation Method 2
combined with a metal material like aluminum alloy or stainless steel for improved durability and corrosion resistance
Implementation Method 3
offering corrosion resistance and thermal conductivity
Data Source
AI summary
A battery box and a battery pack are provided. The battery box includes: a bottom plate; a side plate, where the side plate surrounds a peripheral edge of the bottom plate and is combined with the bottom plate to form an accommodating cavity for accommodating a battery module; and a plurality of protrusions disposed in the accommodating cavity and disposed on the bottom plate, where the protrusions are protruded from the bottom plate in a first direction and arranged in an array in a second direction and a third direction, a top portion of each of the protrusions is configured to contact a bottom portion of the battery module to lift the battery module.