Battery Module Holding Structure for Vibration and Impact Resistance
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Solution Overview
Problem
Energy storage units may collide with the housing and get damaged due to movement, leading to potential damage from vibration or impact.
Innovation Solution
An energy storage apparatus with an energy storage unit and an outer case, featuring a first holding member adjacent to the energy storage devices, which is joined to the outer case, stabilizing the unit and enhancing vibration and impact resistance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the energy storage unit is accommodated in the housing without additional holding members, then the device complexity is reduced, but the energy storage unit may move and collide with the housing causing damage
Solution Approach 1:
The first holding member is disposed adjacent to the energy storage devices in the predetermined direction before operation, and the second holding member is disposed at the other end, preventing movement before vibration or impact occurs. This preliminary positioning action ensures the energy storage unit remains stable during operation without requiring complex active control systems.
Solution Approach 2:
The holding structure is segmented into multiple independent holding members (first holding member and second holding member) positioned at different locations. This segmentation allows each holding member to independently restrict movement in specific directions, providing comprehensive stabilization while maintaining simple individual component designs.
2Reliability
If holding members are added to fix the energy storage unit, then vibration resistance is enhanced, but the device complexity increases
Solution Approach 1:
The first holding member and second holding member serve multiple functions: they hold the energy storage devices in position, prevent movement during vibration, and provide structural support for the overall assembly. This multi-functionality reduces the need for separate components for each function, thereby limiting the increase in device complexity.
3Stability of the object's composition
If the energy storage devices are tightly fixed to prevent movement, then stability is improved, but the ability to accommodate thermal expansion or volume changes is reduced
Solution Approach 1:
The holding members are disposed at specific locations (adjacent to the energy storage devices in the predetermined direction and at the other end) rather than providing continuous constraint. This localized holding approach provides sufficient stability to prevent harmful movement while leaving space for the energy storage devices to accommodate thermal expansion or volume changes in directions not constrained by the holding members.
Data Source
AI summary
An energy storage apparatus includes an energy storage unit and an outer case that accommodates the energy storage unit. The energy storage unit includes a plurality of energy storage devices arrayed in a predetermined direction, and a first holding member that is adjacent to the plurality of energy storage devices in the predetermined direction and holds the plurality of energy storage devices. The first holding member is joined to the outer case.