Breathable Insert Chamber Assembly for Secure Sealing and Fast Production
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Solution Overview
Problem
Existing packaging technologies for sensitive products face challenges in efficiently modulating the volume of active materials, ensuring robust attachment of components, and maintaining high production rates due to complex manufacturing processes and design limitations.
Innovation Solution
A tubular assembly comprising a breathable insert and a tubular body, where the insert is anchored by cylinder-in-cylinder friction with a continuous peripheral seal, allowing for easy automation and high production rates, and includes features like longitudinal striations for enhanced attachment and gas permeability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a peripheral groove is used to lock the cover in the container body, then the cover is secured in position, but the production rate decreases due to extended cooling time required to avoid damage to the groove shape
Solution Approach 1:
The invention divides the attachment function into two separate elements: the everted flange provides the locking mechanism while the ribs provide the sealing function. This segmentation allows each feature to be optimized independently and eliminates the need for complex grooves that slow production.
Solution Approach 2:
Instead of using an inward groove to lock the cover, the invention uses an everted (outward flipped) flange that locks onto the container body. This inversion simplifies the molding process and eliminates the cooling time constraints associated with internal grooves.
2Device complexity
If the chamber volume is fixed by the container body groove, then the structure is simple, but the volume of active material cannot be modulated
Solution Approach 1:
The invention makes the chamber volume dynamic by allowing the breathable insert to be positioned at different depths within the container body. The insert can be inserted to different extents, thereby modulating the chamber volume according to the required amount of active material while maintaining structural simplicity.
3Object-affected harmful factors
If a gap is formed between the moisture transmission sheet and bottom plate, then moisture can pass through, but space is lost in the container
Solution Approach 1:
The invention uses a flexible breathable insert with radial ribs that can deform to conform to the container body walls. This allows the moisture transmission function to be achieved through the thin film structure itself rather than requiring a gap, thereby maximizing space utilization while maintaining moisture transmission capability.
4Reliability
If multiple assembly steps are used for the desiccant storage case, then the attachment is secure, but the manufacturing process becomes complex and production rate is limited
Solution Approach 1:
The invention merges the attachment and sealing functions into a single integrated structure. The everted flange provides mechanical attachment while the radial ribs provide sealing, eliminating the need for separate assembly steps and simplifying the manufacturing process while maintaining secure attachment.
Solution Approach 2:
The breathable insert is designed to perform multiple functions automatically: the everted flange self-locks onto the container body during insertion, and the radial ribs automatically seal against the container walls. This self-service design eliminates the need for complex multi-step assembly processes.
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 assembly provides secure attachment, prevents leakage of active materials, and maintains high production rates while ensuring gas permeability and versatility in active material form, with improved water vapor absorption rates and compatibility with various active materials.
Implementation Method 1
gases and vapors present in the container can enter the chamber and be absorbed by the active material received in the chamber
Implementation Method 2
the breathable insert being anchored relative to the tubular body by surface interference resulting from the mutual engagement of the mechanical holding portions
Data Source
AI summary
This assembly includes a tubular body and a breathable insert configured to be attached inside the tubular body to define a chamber for an active material. The tubular body includes a transverse wall and a lateral wall, and the breathable insert includes a base wall and a side wall having an open end on an opposite side from the base wall. The chamber is delimited by a bottom part of the tubular body and is closed by the breathable insert having its open end turned toward the transverse wall. The side wall of the breathable insert includes a mechanical holding portion configured to cooperate by surface interference with a corresponding mechanical holding portion of the tubular body. In an anchored configuration, a continuous peripheral seal is formed between the breathable insert and the tubular body.