Stacked Battery Pack Tray Structure for Lower Center of Gravity
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Solution Overview
Problem
The stacking of battery packs in power storage devices can lead to a high center of gravity, compromising the stability of the device.
Innovation Solution
A battery device design featuring battery pack assemblies with trays that include a frame and a raised bottom plate, allowing for closer stacking while maintaining necessary gaps, thereby reducing the center of gravity and enhancing stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If battery packs are stacked in the up-down direction on the storage battery board, then the power storage capacity is increased, but the center of gravity becomes high and stability decreases
Solution Approach 1:
The tray includes a bottom plate disposed upward from the lower face of the frame, creating a raised bottom structure. This dimensional change in the tray design allows the battery pack assemblies to be positioned closer together in the vertical direction while maintaining necessary gaps, thereby reducing the overall height and lowering the center of gravity to improve stability
2Stability of the object's composition
If battery pack assemblies are stacked closely to reduce center of gravity, then stability is improved, but the necessary gap between assemblies may be compromised
Solution Approach 1:
The bottom plate is disposed upward from the lower face of the frame, creating a raised bottom structure that provides the necessary gap space vertically. This allows the battery pack assemblies to be positioned closer together in the up-down direction while maintaining the required separation distance, thus reducing the center of gravity without compromising the necessary gaps
3Stability of the object's composition
If the tray bottom plate is raised upward from the lower face of the frame, then the distance between stacked assemblies is reduced and stability improves, but the tray structure complexity increases
Solution Approach 1:
The bottom plate is simply disposed upward from the lower face of the frame, creating a raised bottom structure. This straightforward dimensional change in the tray design provides the necessary gap space while maintaining structural simplicity, avoiding excessive complexity in the tray construction
Data Source
AI summary
The battery device includes a plurality of battery pack assemblies vertically stacked and accommodated in a support member. Each of the plurality of battery pack assemblies includes a battery pack and a tray. The tray is positioned below the battery pack and includes a frame and a bottom plate connected to the frame. The frame includes an upper face that supports the battery pack, and a lower face that is supported by the support member. The bottom plate is disposed upward from the lower face of the frame.