Shisha Cartridge Rotatable Cap Selective Heating
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Solution Overview
Problem
Traditional shisha devices using charcoal for combustion produce harmful by-products, and existing alternatives either eliminate the tobacco experience or lack resealable cartridges, leading to freshness and contamination issues.
Innovation Solution
A shisha cartridge with a rotatable cap that allows selective heating and resealing of aerosol-forming substrates, enabling partial use and maintaining freshness by aligning electrical connection points to form a heating circuit only when the cartridge is open.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the cartridge is left open for extended use, then user convenience is improved, but the substrate deteriorates due to oxidation and contamination
Solution Approach 1:
The cartridge incorporates a dynamic sealing mechanism that transitions between open and closed states. The cap can be rotated to align or misalign with the cartridge body, dynamically changing the seal status at the interface between cap and cartridge body to maintain substrate quality when not in use while allowing access when needed.
Solution Approach 2:
The cartridge uses a flexible sealing interface between the cap and cartridge body that can adapt to maintain a hermetic seal. The cap design includes sealing surfaces that create a flexible yet effective barrier against oxidation and contamination when closed.
2Productivity
If the entire cartridge is heated at once, then aerosol generation is maximized, but energy consumption increases and substrate depletes too quickly
Solution Approach 1:
The cartridge is divided into multiple compartments that can be independently opened and heated. This segmentation allows selective heating of only the required portion (one or more compartments) rather than the entire cartridge, reducing energy consumption while maintaining adequate aerosol generation for the usage session.
Solution Approach 2:
The system enables partial heating action by allowing users to open and heat only the necessary number of compartments based on remaining usage needs. This partial action optimizes energy consumption by avoiding unnecessary heating of substrate that would deplete the cartridge too quickly.
3Reliability
If the cartridge is sealed during storage, then substrate freshness is maintained, but access for use requires opening the seal
Solution Approach 1:
The cap provides a dynamic sealing solution that is hermetic during storage but easily opened for use. The rotatable cap mechanism allows simple rotational motion to transition from sealed to open state, providing easy access while maintaining freshness during storage periods.
Solution Approach 2:
The cap serves as a reusable sealing component that maintains substrate freshness during storage periods. While the cap itself is durable and reusable, it provides a simple, effective sealing function that can be easily opened and closed multiple times throughout the cartridge's usage life.
4Productivity
If multiple compartments are heated simultaneously, then aerosol production is increased, but the risk of contamination increases if one compartment is compromised
Solution Approach 1:
The cartridge is divided into multiple independent compartments that can be opened and heated separately. This segmentation creates physical barriers that isolate potential contamination to only the affected compartment, preventing spread to other compartments while still allowing aerosol production from healthy compartments.
Solution Approach 2:
Each compartment is sealed by the cap interface, creating flexible yet effective barriers. When the cap is closed, it provides a hermetic seal that prevents contamination between compartments and from the external environment, allowing safe simultaneous heating when compartments are opened.
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 solution allows for extended use of the cartridge, prevents contamination, and maintains the quality of the aerosol-forming substrate by heating only the required portion, enhancing user convenience and hygiene.
Implementation Method 1
The heating system of the electrically heated shisha device heats the contents of the cartridge to generate aerosol
Implementation Method 2
aligning electrical connection points to form a heating circuit
Data Source
AI summary
A cartridge for housing an aerosol-forming substrate includes a body with one or more walls having a wall opening; a cavity in the body in fluid communication with the at least one wall opening; and a cap rotatably connected to the body, where the cap is movable between a first position, in which the wall opening is exposed, and a second position, in which the wall opening is closed by the cap. The cap includes electrical connection points to selectively heat a portion of the contents of the cartridge.