Cell Packing Sheet With Check Valves For Insulation
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Solution Overview
Problem
Existing packing materials, such as air cap wrapping sheets, incur high logistics costs due to large volume during transportation and storage, and suffer from reduced insulation due to heat exchange at welded air cells.
Innovation Solution
A method involving the production of a cell packing sheet by attaching overlapping films with sealed cells and check valves, inflating cells with fluid, attaching upper and lower films, cutting to open sealed ends, and sealing the lower film after fluid removal, which allows for minimized volume and enhanced insulation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If air cap wrapping sheet is used to provide cushioning function, then protection against external impacts is improved, but volume during storage and transportation increases significantly
Solution Approach 1:
The packing sheet transitions from a static inflated state to a dynamic collapsible state. The cells are designed to be inflatable only when needed for cushioning, and collapsible for storage and transportation, allowing the packing sheet to adapt its volume dynamically based on operational requirements
Solution Approach 2:
The physical state of the cells changes from inflated (providing cushioning) to collapsed (minimizing volume). By controlling the inflation and deflation parameters of the cells, the packing sheet achieves both protective function and compact storage
2Stability of the object's composition
If air cells are welded together to form packing structure, then structural integrity is improved, but heat exchange increases and insulation property decreases
Solution Approach 1:
The packing sheet is divided into multiple separate cells that are not welded together. Each cell is independently formed between the films, creating segmented compartments that maintain structural integrity through the film structure rather than through welding connections between cells
Solution Approach 2:
The films themselves act as intermediaries that provide both the structural framework and the insulation barrier. The film material serves dual functions of maintaining cell shape and preventing heat exchange, eliminating the need for welded joints that would compromise insulation
3Ease of operation
If check valve is disposed in injection hole of each cell, then fluid injection control is improved, but device complexity increases
Solution Approach 1:
The check valves are integrated directly into the injection holes of the cells, allowing each cell to self-regulate fluid injection. The check valves automatically control the one-way flow of fluid into the cells without requiring external control mechanisms, simplifying the overall system while maintaining precise injection control
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
This method significantly reduces logistics costs by minimizing volume during storage and transportation while significantly increasing insulation by preventing heat exchange through the use of check valves and fluid injection.
Implementation Method 1
disposing a check valve in an injection hole formed in a first end of each of the multiple cells
Implementation Method 2
inflating the multiple cells by injecting a fluid through the respective check valves of the cells of the cell packing sheet
Implementation Method 3
sealing second ends of the multiple cells... significantly increasing insulation by preventing heat exchange
Data Source
AI summary
Provided is a method for producing a packing sheet with improved insulation and storage properties, the method including: producing a cell packing sheet by attaching together two overlapping films such that multiple cells are formed therebetween, by sealing second ends of the cells, and by disposing a check valve in an injection hole formed in a first end of each of the cells; inflating the cells by injecting a fluid through the respective check valves of the cells; attaching upper and lower films respectively to upper and lower sides of the cell packing sheet; cutting the cell packing sheet along a second edge thereof together with the upper and lower films such that the second ends of the sealed cells are opened; and sealing a second end of the upper film, a second end of the cell packing sheet, and a second end of the lower film.