Planar HNB Capsule Frame for Aerosol Flow Without Pyrolysis
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Solution Overview
Problem
Existing heat-not-burn aerosol-generating devices face challenges in efficiently generating aerosols without causing substantial pyrolysis or combustion of plant materials, particularly cannabis, while maintaining a planar form and ensuring adequate airflow and capillary action.
Innovation Solution
A capsule design for heat-not-burn devices featuring a frame with interconnected open spaces for aerosol permeability and capillary action, supported by first and second heaters, which are electrically isolated by a non-conductive frame, allowing for efficient aerosol production without pyrolysis, using a cannabinoid-containing material as the aerosol-forming substrate.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If conventional combustion methods are used to vaporize tobacco, then high temperature is achieved for effective vaporization, but harmful combustion byproducts are generated
Solution Approach 1:
The patent changes the fundamental parameter from combustion temperature to heating temperature, operating at lower temperatures (below combustion point) to achieve vaporization without combustion byproducts. The heating element temperature is controlled to be sufficient for vaporization but below the combustion threshold of tobacco materials.
Solution Approach 2:
The patent converts the harmful combustion process into a beneficial heating process. By using controlled heating instead of combustion, the system achieves effective vaporization while eliminating harmful combustion byproducts, turning a potentially harmful high-temperature process into a safe alternative.
2Productivity
If heating temperature is increased to improve vaporization efficiency, then aerosol generation improves, but risk of combustion increases
Solution Approach 1:
The patent optimizes the heating temperature parameter to fall within a specific range that maximizes aerosol generation efficiency while remaining below the combustion threshold. This parameter optimization allows high productivity without increasing combustion risk.
Solution Approach 2:
The patent introduces a controlled heating element as an intermediary between the power source and tobacco material, enabling precise temperature control. This intermediary allows efficient heat transfer for aerosol generation while preventing temperatures from reaching combustion levels.
3Stability of the object's composition
If tobacco material is processed through combustion, then complete vaporization is achieved, but formation of harmful condensates occurs
Solution Approach 1:
The patent changes the processing parameter from combustion to controlled heating, achieving complete vaporization of tobacco materials at lower temperatures. This prevents the formation of harmful condensates that result from combustion, while still ensuring complete processing of the tobacco material.
4Quantity of substance
If high power heating is used to generate sufficient aerosol, then aerosol output increases, but device complexity increases
Solution Approach 1:
The patent employs a self-regulating heating element that automatically controls its own temperature through intrinsic properties, eliminating the need for complex external temperature control systems. This self-service approach maintains high aerosol output while reducing device complexity.
Solution Approach 2:
The patent uses a simple, replaceable heating element that can be discarded after a certain number of uses. This disposable approach simplifies the overall device design by eliminating complex temperature control mechanisms, while still achieving high aerosol output during the element's service life.
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 design maintains a planar form, facilitates efficient aerosol generation without pyrolysis, and ensures adequate airflow, effectively producing cannabinoids like THC and CBD through decarboxylation, while maintaining device stability and ease of assembly.
Implementation Method 1
heating the tobacco material with the heating element to a temperature sufficient to vaporize the tobacco material and form an aerosol
Implementation Method 2
vaporize the tobacco material and form an aerosol
Data Source
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AI summary
A capsule for a heat-not-burn (HNB) aerosol-generating device may include a first heater, a second heater, and a frame sandwiched between the first heater and the second heater, and a cannabinoid-containing material. The frame may define open spaces therein and have a rigidity that is adequate to support the first heater and the second heater. The open spaces within the frame may be interconnected and sized for aerosol-permeability and capillary action.