Columnar Battery Packaging with Segmented Trays
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Solution Overview
Problem
Existing packaging methods for columnar batteries are time-consuming and costly, requiring multiple partition members and materials to prevent battery contact and ensure safe transportation, while also risking damage and poor contact during electrode welding.
Innovation Solution
A packaging construction using two trays with recesses that hold the batteries apart, preventing contact and reducing material usage, featuring tapered recesses and a corrugated cardboard case with flutes for impact resistance, and made of anticorrosive plastic to maintain battery cleanliness and prevent rust.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If partition members are placed in close contact with batteries to prevent rattling, then battery stability is improved, but packaging time increases and productivity decreases
Solution Approach 1:
The accommodation member is divided into multiple independent spaces by partition members, with each space accommodating one battery. This segmentation allows batteries to be individually secured without requiring complex fixation mechanisms, achieving both stability and efficient packaging.
Solution Approach 2:
Partition members serve as intermediary elements between adjacent batteries, preventing direct contact and rattling while maintaining organized spacing. This intermediary structure provides stability without requiring forceful fixation.
2Reliability
If multiple partition members are used to separate batteries, then battery contact prevention is improved, but package material cost increases
Solution Approach 1:
The partition members serve multiple functions: they separate adjacent batteries to prevent contact, provide structural support to the accommodation member, and define individual spaces for each battery. This multi-functionality reduces the need for additional specialized components.
3Reliability
If batteries are tightly fixed with partition members, then transportation safety is improved, but battery removal time increases
Solution Approach 1:
The partition members are designed to provide flexible retention rather than rigid fixation. The spaces defined by partition members allow batteries to be easily inserted and removed while maintaining stability during transportation, achieving a dynamic balance between security and accessibility.
4Object-affected harmful factors
If conventional packaging materials are used, then battery protection is improved, but package weight increases
Solution Approach 1:
The accommodation member and partition members are designed as lightweight structural components that provide adequate protection without excessive weight. The thin-walled yet robust design ensures battery protection during transportation while minimizing added weight.
Data Source
AI summary
The present disclosure is directed to a packaging construction for columnar batteries. The packaging construction includes an accommodation case including a bottom plate, and side plates located on outer edges of the bottom plate; a first tray having first recesses into which one end portions of the batteries are fitted, placed immediately above the bottom plate, and fixed to the accommodation case; and a second tray having second recesses into which the other end portions of the batteries are fitted, and placed above the first tray. The batteries are held so as to be fitted to the first and second trays and such that each adjacent pair of the batteries are apart from each other. A portion of a bottom of each first recess facing a corner portion of the one end portion of a corresponding one of the fitted batteries protrudes outward to be apart from the corner portion.