Secondary Battery Tray Pressing Structure for Impact-Stable Fixing
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Solution Overview
Problem
Secondary batteries in trays are prone to movement and external impacts, leading to collisions with the tray sidewalls and potential damage.
Innovation Solution
A tray design with an accommodation part and a pressing part that presses the side of the secondary battery, featuring a foldable surface and a pressing surface that descends to fix the battery, integrated with a pushing surface for stability and a folding groove for easy folding.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the tray uses a simple accommodation groove structure, then the device complexity is reduced and ease of manufacture is improved, but the secondary battery can move and collide with the sidewall, causing damage
Solution Approach 1:
The pressing part is designed to be movable rather than fixed, allowing it to dynamically adjust and press the secondary battery. The pressing part can move in the vertical direction to apply pressing force and fix the battery position, preventing movement and collisions while maintaining a relatively simple overall structure.
Solution Approach 2:
The pressing part acts as an intermediary element between the accommodation groove and the secondary battery. It provides the necessary pressing force to secure the battery without requiring complex fixed constraint structures, thus improving reliability while keeping the manufacture relatively simple.
2Reliability
If the tray adds a pressing part to fix the secondary battery, then the reliability is improved and battery damage is prevented, but the device complexity increases
Solution Approach 1:
The pressing part is integrated with the accommodation groove structure, merging the functions of accommodation and pressing into a unified design. This reduces device complexity by eliminating the need for separate pressing mechanisms while still providing reliable battery fixation.
Solution Approach 2:
The pressing part utilizes the load from trays stacked on upper ends to automatically generate pressing force, eliminating the need for external power sources or complex actuation mechanisms. The structure serves itself by using the weight of stacked trays to fix the batteries, thereby improving reliability without significantly increasing device complexity.
3Force
If multiple trays are stacked to provide pressing force, then the fixing force is improved and battery stability is enhanced, but the weight of the stationary object increases
Solution Approach 1:
The design utilizes the weight of trays stacked on upper ends as a counterbalancing force to generate pressing force on lower trays. The weight of the stationary object (stacked trays) is converted into a beneficial pressing force that enhances fixing force and battery stability, rather than being merely a burden.
Data Source
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AI summary
The present invention relates to a tray for a secondary battery, which comprises: an accommodation part having a bottom surface, on which the secondary battery is disposed, and a side surface provided along an edge of the bottom surface to accommodate the secondary battery; and a pressing part configured to press a side portion of the secondary battery while descending to the bottom surface and moving to the secondary battery due to a load of the tray loaded on an upper end to fix the secondary battery.