Solid Additive Wick Design for Clogging Prevention
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Solution Overview
Problem
Smoking substitute devices face issues with solid additives blocking the flow of liquid aerosol-forming substrates to the vaporization means, leading to clogging and an unpleasant user experience due to the burning of solids by the heating coil.
Innovation Solution
The use of solid additives in the form of bodies sized to prevent blocking, such as elongate or planar shapes with cavities, that are adapted to engage with the tank to remain in a fixed position, ensuring the liquid can flow freely and the solids do not interfere with the vaporization process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If solid additives are included in the liquid aerosol-forming substrate, then flavour enhancement and nicotine delivery are improved, but the solid additives block the flow of liquid to the vaporization means causing clogging
Solution Approach 1:
The patent employs porous wick material that can accommodate solid additives within its pore structure. The porous structure allows liquid to flow through while preventing solid particles from blocking the flow path to the heating element, thus maintaining both solid additive content and flow reliability.
Solution Approach 2:
The wick acts as an intermediary component between the liquid reservoir and the heating element. It mediates the transport of liquid containing solid additives, allowing the liquid to pass through while retaining the solids, thereby preventing clogging at the heating element while still enabling solid additive delivery.
2Object-affected harmful factors
If solid additives are used to enhance flavour, then user satisfaction is improved, but the heating coil burns the solids creating an unpleasant experience
Solution Approach 1:
The wick serves as a mediator that separates the solid additives from direct contact with the heating coil. The wick absorbs and transports the liquid containing dissolved or suspended solids to the heating element, but the solid particles themselves remain in the wick structure and do not directly contact the hot coil, preventing burning and unpleasant odors.
Solution Approach 2:
The porous structure of the wick allows liquid to be drawn through capillary action while retaining solid particles within the pore matrix. This prevents solids from reaching the heating coil where they would be burned, while still allowing the liquid phase containing flavour compounds to be vaporized and delivered to the user.
3Adaptability or versatility
If solid additives are suspended in the liquid substrate, then flavour variety is improved, but the solids settle and block the wick and vaporization means
Solution Approach 1:
The porous wick structure provides a three-dimensional matrix that traps solid additives within its pore network, preventing them from settling at the bottom of the reservoir and blocking the wick or heating element. The porous structure maintains suspension of solids while allowing liquid flow, enabling flavour variety without increasing clogging risk.
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
Prevents clogging of the wick and vaporization means, allowing for a consistent and pleasant user experience by ensuring the liquid can pass through without obstruction and avoiding the burning of solids, thus maintaining device functionality.
Implementation Method 1
electrical energy is supplied from the power source to the heating device, which heats the e-liquid to produce an aerosol (or 'vapour') which is inhaled by a user through the mouthpiece
Implementation Method 2
The wick is arranged to deliver liquid from the tank to the heating coil
Data Source
AI summary
A consumable for a smoking substitute device contains a liquid aerosol-forming substrate, wherein a solid additive is located within the tank of the consumable. The solid additive 750 is used to add materials to the liquid aerosol-forming substrate.