Aerosol-Forming Article Encapsulation Layer Design
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Solution Overview
Problem
In existing heat-not-burn (HNB) products, the aerosol-forming substrate is in direct contact with the heating body, leading to accumulation and adherence of aerosol residues, which are difficult to clean and result in a burnt flavor and odor, affecting taste consistency and user experience.
Innovation Solution
An aerosol-forming article comprising an aerosol-forming substrate, an encapsulation layer, and a cover layer, where the encapsulation layer encircles a recessed portion and the aerosol-forming substrate is arranged within this recessed portion, preventing direct contact between the heating element and the substrate.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If the aerosol-forming substrate is in direct contact with the heating body, then the heating efficiency is improved, but the aerosol residues accumulate and adhere to the heating body, making cleaning difficult and causing burnt flavor
Solution Approach 1:
The patent introduces an encapsulation layer as an intermediary component between the heating body and the aerosol-forming substrate. This encapsulation layer allows thermal energy to be transmitted from the heating body to the substrate while preventing direct contact between the two components, thereby eliminating the accumulation and adhesion of aerosol residues on the heating body surface and making cleaning easier without significantly compromising heating efficiency
2Device complexity
If the heating body is reused, then the device complexity is reduced, but the aerosol residues adhered to the heating body are hard to clean, affecting taste consistency
Solution Approach 1:
The encapsulation layer serves as a mediator that enables the heating body to be reused multiple times while maintaining taste consistency. By preventing direct contact between the heating body and the aerosol-forming substrate, the encapsulation layer stops aerosol residues from adhering to the heating body, thus ensuring that the heating body can be reused without degradation in taste quality
Solution Approach 2:
The patent design allows the aerosol-forming substrate to be discarded after use while the heating body is recovered and reused. The encapsulation layer facilitates this by preventing residue transfer to the heating body, so the recovered heating body remains clean and ready for the next substrate without requiring intensive cleaning procedures
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 prevents aerosol residues from adhering to the heating element, making cleaning easier and maintaining the taste consistency of aerosols, even when the heating element is reused, thereby enhancing user experience.
Implementation Method 1
an encapsulation layer encircling a recessed portion, the aerosol-forming substrate being arranged in the recessed portion
Implementation Method 2
power is supplied to the heating body for heat generation to further bake the aerosol-forming substrate
Implementation Method 3
the heating body is in direct contact with the aerosol-forming substrate... for heat generation to further bake the aerosol-forming substrate
Implementation Method 4
a cover layer covering at least a part of the encapsulation layer and an opening of the recessed portion
Data Source
AI summary
An aerosol-forming article includes: an aerosol-forming substrate; an encapsulation layer encircling a recessed portion, the aerosol-forming substrate being arranged in the recessed portion; and a cover layer covering at least a part of the encapsulation layer and an opening of the recessed portion. The aerosol-forming substrate is arranged between the encapsulation layer and the cover layer. A through hole is provided at a position of the cover layer corresponding to the opening.