Battery Module Base Plate Reinforcing Portions
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Solution Overview
Problem
Battery modules used in electric cars face structural instability due to the weight of stacked batteries, leading to potential deformation and instability when used as a power source.
Innovation Solution
A battery module design featuring a base plate with integral bent reinforcing portions that protrude towards the batteries, increasing the base plate's strength and stability by distributing the load and preventing deformation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If a base plate supports a large number of stacked batteries, then the battery module capacity increases, but the base plate strength becomes insufficient and deformation occurs
Solution Approach 1:
The base plate transitions from a two-dimensional flat structure to a three-dimensional structure by adding bent portions that extend upward. This dimensional change creates reinforcing portions that protrude toward the batteries, increasing the base plate's load-bearing capacity without adding separate support components.
Solution Approach 2:
The base plate is segmented into multiple regions through the bent portions, which divide the load distribution areas. The bent portions create distinct supporting zones that individually bear specific battery weights, preventing concentrated stress and overall deformation.
2Strength
If the base plate is made thicker to increase strength, then the base plate can support more weight, but the device complexity and manufacturing difficulty increase
Solution Approach 1:
The reinforcing portions are merged with the base plate as integral structures rather than separate components. The bent portions are formed directly from the base plate material through bending, combining the base plate and support structures into a single unified component that reduces assembly complexity.
Solution Approach 2:
The base plate incorporates curved bent portions instead of straight rigid extensions. These curved reinforcing portions provide structural strength while being formed through bending processes, avoiding the need for complex welding or assembly of multiple straight structural elements.
3Quantity of substance
If multiple battery modules are stacked to increase capacity, then the power supply capacity increases, but the load on the bottom base plate increases causing instability
Solution Approach 1:
The base plate utilizes the third dimension by extending bent portions upward into the battery stacking space. This creates a three-dimensional support framework that distributes vertical loads from stacked batteries across multiple contact points, enhancing stability without increasing horizontal footprint.
Solution Approach 2:
The base plate features localized reinforcing portions at specific positions where batteries are mounted. These bent portions are strategically positioned to provide enhanced support exactly where the load is applied, rather than uniformly thickening the entire base plate, thus maintaining stability while controlling complexity.
Data Source
AI summary
A battery module includes a base plate, a plurality of batteries on the base plate, and a reinforcing portion on the base plate for reinforcing the base plate. Therefore, deformation of the base plate is prevented.