Battery Casing Reinforcement at Connecting Regions Without Cell Space Loss
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Solution Overview
Problem
Battery casing structures are prone to deformation and damage due to weak structural strength at the connecting regions, especially under external forces, which affects the reliability and safety of electricity-consuming apparatus like vehicles.
Innovation Solution
Incorporating a reinforcing plate that overlaps with the connecting region of the carrying plate, increasing the thickness and structural strength while maintaining a lightweight design, and arranging it away from the accommodating chamber to avoid space occupancy and enhance energy density.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the thickness of the carrying plate is increased to improve structural strength, then the battery becomes more resistant to deformation and damage, but the overall weight of the battery increases
Solution Approach 1:
The patent applies local quality by adding a reinforcing plate only at the connecting region where structural strength is most needed, rather than uniformly increasing the thickness of the entire carrying plate. This localized reinforcement increases strength at critical areas while minimizing overall weight increase.
Solution Approach 2:
The patent uses composite material structure by combining the carrying plate with a separate reinforcing plate at the connecting region. This creates a composite structure that provides enhanced strength at the connection area without requiring the entire plate to be made of heavier material.
2Reliability
If a reinforcing plate is added to increase structural strength, then the battery becomes more reliable under external forces, but the device complexity increases
Solution Approach 1:
The patent merges the reinforcing plate with the carrying plate at the connecting region, creating an integrated structure that improves reliability. The reinforcing plate is positioned to overlap and connect with the carrying plate, forming a unified load-bearing structure that reduces complexity compared to separate reinforcement components.
3Strength
If the reinforcing plate is placed to overlap the connecting region, then the structural strength at the connecting region is improved, but the volume available for battery cells is reduced
Solution Approach 1:
The patent resolves the volume conflict by utilizing the thickness dimension of the carrying plate. The reinforcing plate is positioned to overlap with the connecting region in the thickness direction, allowing structural reinforcement without occupying additional lateral space that would reduce battery cell volume.
Data Source
AI summary
A casing body of a battery includes a carrying plate, a side beam and a reinforcing plate. The carrying plate includes a carrying region and a connecting region, and the carrying region is configured to place a battery cell. The side beam and the carrying plate enclose to form an accommodating chamber for accommodating the battery cell, and the side beam is connected to the connecting region. At least a part of the reinforcing plate overlaps with the connecting region in a thickness direction of the carrying plate and is connected to the connecting region.