Composite Packaging Assembly with Dual Elasticity Layers
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Solution Overview
Problem
Conventional packaging methods fail to provide sufficient protection for diverse transportation objects while maintaining low costs, as they either lack sufficient cushioning or are too expensive for mass production, especially when dealing with objects of varying densities and shapes.
Innovation Solution
A packaging assembly comprising an inner protection layer with a higher elasticity coefficient than the outer protection layer, where the inner layer fits directly onto the object and the outer layer covers it, allowing for customizable cushioning without increasing package size or cost, using clamping parts and an accommodation groove to secure the object.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If EPS package member is used alone, then the package member can be made with low cost material, but the cushioning protection is insufficient and package size must be increased
Solution Approach 1:
The patent combines two different packaging materials (EPS and EPE) into a composite packaging structure. The inner layer uses EPS for basic cushioning, while the outer layer uses EPE for enhanced protection. This composite approach provides sufficient cushioning protection without increasing package size, as each material contributes its strengths to the overall packaging system.
Solution Approach 2:
The patent applies different material properties to different layers of the packaging structure. The inner layer is designed with one material property (EPS characteristics) while the outer layer uses different material properties (EPE characteristics). This local differentiation allows optimal protection for the packaged object while maintaining compact package dimensions.
2Reliability
If EPE package member is used alone, then sufficient protection is provided without increasing package size, but the material cost is high and不适合 mass production
Solution Approach 1:
The patent creates a composite packaging system where EPE is used as the outer layer for enhanced protection, while EPS is used as the inner layer for basic cushioning. This combination reduces overall material cost compared to using EPE alone, while still providing sufficient protection. The cheaper EPS material handles the bulk of the cushioning requirements, allowing EPE to be used in a thinner, more cost-effective manner.
Solution Approach 2:
The patent changes the material composition parameters of the packaging structure by introducing a multi-layer design. Instead of using a single material throughout, the packaging transitions from monolithic to composite structure, optimizing both cost and protection capabilities by selecting appropriate materials for each layer based on functional requirements.
3Device complexity
If conventional package members with same cushioning ability are used, then packaging is simple, but they cannot provide sufficient protection for objects of different densities and types
Solution Approach 1:
The patent designs a universal packaging structure with multiple layers that can adapt to different packaged objects. The inner layer provides basic cushioning for various object types, while the outer layer enhances protection for specific vulnerability points. This multi-functional design allows the same packaging structure to protect different object densities and types (electronic devices, glass, ceramics, etc.) without requiring completely different packaging solutions for each object type.
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 packaging assembly provides effective protection for various objects by distributing external forces, reducing stress on fragile items and preventing damage to others, while maintaining low packaging costs and being adaptable for mass production.
Implementation Method 1
the elasticity coefficient of the outer protection layer is smaller than that of the inner protection layer
Implementation Method 2
the elasticity coefficient of the outer protection layer is smaller than that of the inner protection layer
Data Source
Figure 1~2
Figure 3(a)~3(b)
Figure 4
AI summary
The present invention provides a packaging assembly. The packaging assembly comprises: an inner protection layer which fits and is in contact with a surface of an object to be packaged, and an outer protection layer which covers the inner protection layer, wherein materials of the outer protection layer and the inner protection layer have different elastic coefficients.