Protruding Heating Member Atomization Core for Infiltration
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Solution Overview
Problem
Existing electronic atomization devices face challenges in fully infiltrating the aerosol-generating substrate into the heating member, leading to dry heating and reduced vapor production due to the limited surface contact between the substrate and the heating film.
Innovation Solution
The atomization core incorporates a porous liquid guide layer connected to the porous substrate, which covers at least part of the second surface of the heating member not in contact with the substrate, guiding the aerosol-generating substrate for more efficient infiltration and reducing the risk of dry heating.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a solid metal heating film is used as a heating member with a porous ceramic substrate, then the structure is simple and easy to manufacture, but the aerosol-generating substrate can only infiltrate from the surface next to the film, leading to incomplete infiltration and dry heating
Solution Approach 1:
The heating member is designed to protrude from the porous substrate, creating a three-dimensional structure with multiple surfaces (first surface in contact with substrate, second surface exposed). This dimensional change allows the aerosol-generating substrate to infiltrate the heating member from multiple directions and surfaces, transforming the single-surface infiltration limitation into multi-surface infiltration capability, thereby improving infiltration completeness while maintaining structural simplicity
Solution Approach 2:
The heating member is designed with porous characteristics that allow the aerosol-generating substrate to infiltrate throughout its structure. The porous nature of both the heating member and the substrate enables capillary action and thorough penetration of the substrate into the heating member, ensuring complete infiltration and preventing dry heating while maintaining the simple heated structure
2Device complexity
If the aerosol-generating substrate infiltrates only from the surface of the porous ceramic, then the structure is simple, but the heating film burns off and vapor amount decreases due to insufficient substrate supply
Solution Approach 1:
The protruding heating member creates additional exposure surfaces (second surface) that are not in contact with the porous substrate. This dimensional configuration allows the aerosol-generating substrate to access and infiltrate the heating member from multiple surfaces simultaneously, increasing the effective infiltration area and ensuring sufficient substrate supply to prevent burning off, thereby maintaining high vapor generation without increasing overall device complexity
Solution Approach 2:
The heating member protrudes from the porous substrate in advance, creating pre-exposed surfaces that are ready to receive and infiltrate the aerosol-generating substrate. This preliminary structural arrangement ensures that when the device operates, the substrate can immediately and thoroughly infiltrate the heating member from multiple surfaces, preventing the heating film from burning off due to insufficient substrate, thus maintaining consistent vapor production
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 configuration enhances the atomization effect, reduces the probability of dry heating, and improves the service life of the atomization core by ensuring more thorough infiltration of the heating member and maintaining uniform temperature distribution.
Implementation Method 1
a porous liquid guide layer connected to the porous substrate and covering at least part of the second surface
Implementation Method 2
a heating member protruding from the porous substrate, the heating member having a first surface and a second surface
Data Source
AI summary
An atomization core includes: a porous substrate; a heating member protruding from the porous substrate, the heating member having a first surface and a second surface, the first surface being in contact with the porous substrate, and the second surface not being in contact with the porous substrate; and a porous liquid guide layer connected to the porous substrate and covering at least part of the second surface.