Foldable Dispenser Substrate for Maximizing Airflow and Emission Rates
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Solution Overview
Problem
Existing passive volatile material dispensers are inefficient in maximizing air flow and emission rates, often requiring complex designs that increase material costs and manufacturing steps, and result in unnecessary waste due to multiple component pieces.
Innovation Solution
A foldable substrate with hinges that allows the dispenser to change from a compact state to an expanded state, increasing surface area exposed to air flow and enhancing emission rates while minimizing material waste through tessellated designs and efficient manufacturing processes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If monolithic or minimally porous designs are used, then structural simplicity is maintained, but air flow through the dispenser is inhibited and emission rates are reduced
Solution Approach 1:
The substrate is divided into multiple segments or panels that can be folded relative to each other. This segmentation allows the dispenser to transition from a compact monolithic form to an expanded multi-faceted structure, increasing surface area and air flow pathways without requiring completely separate components
Solution Approach 2:
The dispenser incorporates movable foldable members with hinges that allow the structure to dynamically change between compact and expanded states. This dynamic capability enables the same structure to serve both storage/transport and high-emission functions
2Productivity
If surface area is increased to improve emission rates, then volatile material dispersion is enhanced, but device complexity and manufacturing steps increase
Solution Approach 1:
Multiple functional surfaces are merged into a single continuous substrate that can be folded into various configurations. This combining approach achieves high total surface area for emission while avoiding the complexity of assembling multiple separate components
Solution Approach 2:
The substrate utilizes three-dimensional folding to create multiple emission surfaces from a two-dimensional material sheet. By folding the flat substrate into angled or perpendicular panels, the dispenser achieves high surface area in a compact form factor without requiring additional material layers or components
3Productivity
If complex folded structures are used to maximize surface area, then emission rates are improved, but material waste and manufacturing costs increase
Solution Approach 1:
The substrate design incorporates segmentation that allows efficient nesting and packing during manufacturing, minimizing waste material between components while creating multiple emission surfaces through controlled folding patterns
Solution Approach 2:
The use of a single flexible substrate material that can be folded and shaped allows the dispenser to achieve complex three-dimensional emission surfaces from a flat sheet with minimal cutting or waste, unlike rigid multi-component constructions
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 foldable design maximizes air flow and emission rates of volatile materials, reducing material waste and manufacturing complexity, resulting in a more efficient and cost-effective passive dispenser.
Implementation Method 1
an absorbent substrate comprising a body having a porous cellulosic material for the absorption of a volatile active
Implementation Method 2
a volatile active...passively emanated active insect control ingredient
Data Source
AI summary
An emanating device includes a substrate with a body having a first portion and a second portion, a foldable member, and first and second hinges along a longitudinal axis of the body and connected to the foldable member. The foldable member is movable between a first state, such that the member is co-planar with the first portion and second portion, and a second state, such that the foldable member is not co-planar with the first portion and the second portion.