Multi-layered Air Cell Packaging for Shock and Thermal Protection
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Solution Overview
Problem
Conventional shock-absorbing packaging materials with single-layer air cells struggle to effectively absorb shocks and maintain temperature, as they allow heat transfer between the inside and outside, leading to inadequate protection for articles during transportation and temperature retention.
Innovation Solution
A multi-layered shock-absorbing packaging material is designed with alternately stacked air cells formed by partially fusing auxiliary inner covers with outer covers, using laminated synthetic resin films such as PE, PET, aluminum, silica, and urethane to enhance shock-absorbency and reduce heat transfer.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If single-layer air cells are used, then the structure is simple and easy to manufacture, but shock-absorbency is insufficient and heat transfer occurs between inside and outside
Solution Approach 1:
The patent implements a multi-layered nested structure where inner covers with air cells are placed inside outer covers, and auxiliary inner covers are inserted within the space between outer covers and inner covers. This nesting arrangement creates multiple layers of air cells that enhance shock-absorbency while maintaining a compact overall structure. The auxiliary inner covers are specifically positioned to fill gaps and create additional protective layers without significantly increasing the external dimensions.
Solution Approach 2:
The patent transitions from a single-layer two-dimensional structure to a multi-layer three-dimensional structure by introducing auxiliary inner covers that create additional layers in the depth dimension. The air cells are arranged in multiple layers along the thickness direction, with alternating patterns of single-layer and multi-layer configurations, thereby enhancing shock-absorbency through the added dimensional complexity.
2Temperature
If single-layer air cells are used, then manufacturing is simple, but heat transfer between inside and outside cannot be effectively blocked
Solution Approach 1:
The nested multi-layer structure creates multiple barriers against heat transfer. The auxiliary inner covers are positioned to form additional layers that interrupt thermal pathways between the interior and exterior environments. This layered nesting arrangement effectively blocks heat transfer by creating multiple interfaces and air gaps that resist thermal conduction and convection.
3Reliability
If multi-layered air cells are used, then shock-absorbency and heat transfer blocking are improved, but device complexity increases
Solution Approach 1:
The packaging material is segmented into distinct functional layers: outer covers providing structural integrity, inner covers with air cells for shock absorption, and auxiliary inner covers for enhanced protection and heat blocking. Each segment performs a specific function, and the segmented design allows for modular assembly and maintenance while achieving high overall reliability through the combined effect of multiple specialized layers.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The multi-layered structure significantly improves shock-absorbency and effectively blocks heat transfer, providing better protection and temperature retention for packaged articles.
Implementation Method 1
the structure of the air cells of a multi-layered structure, which are alternately stacked, may effectively block heat transfer between the inside and the outside of the packaging material through portions where the air cells are connected with each other
Implementation Method 2
an air cell type shock-absorbing packaging material in which air is filled in a film is being widely used
Implementation Method 3
an elasticity and a strength are required in addition to a light weight to protect the article
Data Source
AI summary
The present disclosure relates to a shock-absorbing packaging material having multi-layered air cells. Between outer covers forming air cells, an auxiliary inner cover is provided to be fused alternately and partially with the outer covers and thus form air cells of a multi-layered structure, which are alternately stacked between the outer covers. When packaging an article using the shock-absorbing packaging material, it is possible to more safely protect the article due to an enhancement in shock-absorbency through the air cells of a multi-layered structure. Moreover, the structure of the air cells of a multi-layered structure, which are alternately stacked, may effectively block heat transfer between the inside and the outside of the packaging material through portions where the air cells are connected with each other, whereby the shock-absorbing packaging material having multi-layered air cells may be useful for packaging an article which needs to be kept warm or cold.