Battery Pack Tray Reinforcement With Elastic Impact Cushioning
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Solution Overview
Problem
Existing battery packs lack sufficient safety measures against external impacts, which can lead to damage, short circuits, and potential explosions or fires, particularly in large-capacity applications like electric vehicles.
Innovation Solution
A battery pack design incorporating a tray with a reinforcing member and an elastic member that forms a space to elastically deform and press the reinforcing member upward, enhancing its resistance to external impacts and preventing permanent deformation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If a large-capacity battery pack is mounted in a vehicle, then energy storage capacity is improved, but vulnerability to external impacts increases
Solution Approach 1:
The patent introduces a cushioning member positioned between the battery module and the impact transmission path, which beforehand prepares a protective mechanism to absorb and dissipate impact energy before it reaches the battery module, thereby reducing vulnerability while maintaining large capacity
2Reliability
If a reinforcing member is added to protect the battery module, then safety against impacts is improved, but structural complexity increases
Solution Approach 1:
The patent integrates the reinforcing member with the existing tray structure, merging the protective function into the current structural framework rather than adding completely separate components, thereby improving safety while minimizing increases in structural complexity
Solution Approach 2:
The tray structure is designed to serve multiple functions: it provides mechanical support for the battery module, acts as a reinforcing structure against impacts, and integrates the cushioning member, thereby achieving enhanced protection without proportionally increasing complexity
3Ease of manufacture
If the battery module is directly mounted on the tray, then ease of assembly is improved, but resistance to external impacts deteriorates
Solution Approach 1:
The cushioning member acts as an intermediary component between the battery module and the tray, providing impact protection while maintaining a relatively simple assembly process where the cushioning member can be positioned and secured in the designated space
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 buffers external impacts, increases the durability of the reinforcing member, and prevents damage to the battery module, thereby improving safety and reducing the risk of accidents.
Implementation Method 1
an elastic member constrained in the first space in an elastically deformed state and configured to press a lower surface of the reinforcing member upward
Data Source
AI summary
A battery pack has improved safety against external impacts, and an energy storage system and a vehicle including the same. The battery pack includes a battery module having at least one battery cell; a tray having a plate shape so that the battery module is mounted thereon; a reinforcing member having a plate shape and mounted on the tray, the reinforcing member having at least a portion coupled to the tray and the other portion supporting the battery module upward, the reinforcing member being configured to form a space separated from the tray below the other portion supporting the battery module; and an elastic member constrained in the separated space in an elastically deformed state and configured to press a lower surface of the reinforcing member upward.