Energy Storage Holder Support Portion Resonance Frequency
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Solution Overview
Problem
Energy storage apparatuses for electric and hybrid vehicles face a decrease in resonance frequency due to the increased length of energy storage device groups, which can affect performance.
Innovation Solution
Incorporating a support portion within the holder to support energy storage devices between the end devices, allowing for shorter intervals and increased resonance frequency, with the support portion potentially extending from a frame and contacting the devices to enhance support and rigidity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If the number of energy storage devices is increased to achieve large capacity, then the power source capacity is improved, but the whole length of the energy storage device group is increased which lowers the resonance frequency
Solution Approach 1:
The holder is divided into multiple support portions that are distributed along the energy storage device group. Instead of having a single continuous support structure, the holder segments the support function into discrete points (support portions) that contact individual energy storage devices or groups of devices, thereby maintaining structural integrity while accommodating increased length and device count
2Quantity of substance
If the whole length of the energy storage device group is increased to accommodate more devices, then the capacity is improved, but the resonance frequency is lowered affecting performance
Solution Approach 1:
The support portions extend in a direction substantially perpendicular to the first direction (the longitudinal direction of the energy storage device group). This dimensional change allows the support structure to provide rigidity and maintain resonance frequency by creating a three-dimensional support framework rather than relying solely on longitudinal support
Data Source
AI summary
An energy storage apparatus includes: an energy storage device group including a plurality of energy storage devices arranged in a row in a first direction and a holder that holds the energy storage device group, the group includes two end energy storage devices at both ends of the group; the holder includes a support portion that supports at least one of the energy storage devices arranged between the two end energy storage devices.