Aerosol Substrate Air Inlet Layout for Smooth Aerosol Release
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Solution Overview
Problem
Existing heat-not-burn aerosol-generating substrates face issues with aerosol flow obstruction, leading to inefficient release of nicotine and flavor substances, affecting user experience.
Innovation Solution
The aerosol-generating substrate design includes an air inlet for the substrate section positioned within 1 mm of the confluence and filtration section, enhancing air intake and ventilation, allowing smoother aerosol release and maintaining stable temperature during suction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the air inlet for substrate section is positioned far from the end surface of confluence and filtration section, then the substrate body can be in a more negative-pressure oxygen-poor state, but the aerosol cannot flow out smoothly and effective substances cannot be well released
Solution Approach 1:
The patent changes the positional parameter of the air inlet for substrate section, specifying it be located in the first wrapping layer at a distance of less than 1 mm from the end surface of confluence and filtration section. This parameter change optimizes the balance between creating negative pressure for effective substance release and ensuring smooth aerosol flow out.
2Quantity of substance
If the air inlet for substrate section is positioned very close to the end surface of substrate section, then the amount of air passing through substrate body is minimized, but the aerosol flow smoothness may be affected
Solution Approach 1:
The patent applies local quality by creating different pressure zones at different locations. The air inlet positioned close to the end surface creates a localized negative-pressure oxygen-poor state at the substrate body location, maximizing effective substance release while the overall structure maintains smooth aerosol flow.
3Productivity
If the ventilation rate is increased, then the aerosol can flow out more smoothly, but the temperature stability of substrate body during suction may be affected
Solution Approach 1:
The air inlet for substrate section acts as an intermediary element that regulates the balance between aerosol flow rate and temperature stability. By positioning it within 1 mm of the end surface, it allows sufficient air intake for smooth aerosol flow while maintaining the negative-pressure oxygen-poor state that stabilizes substrate body temperature during suction.
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
This design ensures consistent aerosol release and improved user experience by facilitating better extraction of nicotine and flavor substances, maintaining airflow consistency and temperature stability.
Implementation Method 1
heating or ultrasound treatment
Implementation Method 2
various substances in the substrate atomized in heating are volatilized to produce an aerosol
Implementation Method 3
When a negative pressure is generated at the end surface of the aerosol-generating substrate away from the substrate section by suction of a user, nicotine and flavor substances generated by the substrate body during the heating process is easier to be gradually drawn out
Data Source
Figure 1
Figure 2
AI summary
This application relates to an aerosol-generating substrate, including a substrate section (120) and a confluence and filtration section (140). The substrate section includes a substrate body (121) and a first wrapping layer (123) circumferentially wrapping around the substrate body. The confluence and filtration section is connected to one end of the substrate section in the axial direction of the substrate section to filter the airflow flowing out from the substrate section. The first wrapping layer is provided with an air inlet (123a) for substrate section, and the air inlet connects the inner surface and the outer surface of the first wrapping layer. The distance between the air inlet for substrate section and the surface of the end of the substrate section connected to the confluence and filtration section is greater than 0 mm and smaller than 1 mm.