Electric Heating Device Air Channel Design for Tobacco Products
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing electric heating devices for tobacco products face issues with air supply and smoke release due to inefficient air channel designs, leading to poor smoking quality, risk of ignition, and cumbersome cleaning processes.
Innovation Solution
The electric heating device features a guided air channel with a ventilation portion at the heating member base, matched with first and second air inlets, creating a separate smoke release path from the air supply path, and includes a through hole piece with a porous or mesh structure to regulate airflow and prevent residue accumulation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If air supply enters through a gap between cigarette and heating cavity, then the structure is simple, but the cigarette is loose and cold air entry cannot be controlled affecting smoking quality and ignition risk
Solution Approach 1:
The air channel is segmented into multiple components: a first air inlet at the bottom of the heating cavity, a second air inlet at the bottom wall of the cavity, and a ventilation portion at the heating member base. This segmentation allows controlled air supply paths while maintaining structural simplicity, resolving the contradiction between simple design and reliable smoking quality.
2Quantity of substance
If air channel is designed between inner wall and outer wall of heating cavity, then air supply path is established, but the path is long and sucking resistance is large
Solution Approach 1:
The air supply path transitions from a long horizontal path between inner and outer walls to a vertical multi-level path. Air enters through the first air inlet at the bottom, moves upward through the second air inlet, and reaches the heating member via the ventilation portion. This vertical arrangement shortens the effective air path and reduces sucking resistance while maintaining adequate air supply.
3Device complexity
If smoke directly enters heating cavity through outer wall, then the structure is simple, but smoke easily emerges from air inlet causing losses and poor consumption experience
Solution Approach 1:
The smoke entry function is extracted from the outer wall and relocated to the guiding tube. The guiding tube provides a dedicated smoke passage that directs smoke to the heating member without allowing it to emerge from the air inlet. This separation of smoke entry and air supply paths prevents smoke loss while avoiding the complexity of modifying the outer wall structure.
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 smooth ventilation, efficient air supply, and smoke release, improving smoking quality and simplifying the user experience by reducing residue and cleaning requirements.
Implementation Method 1
Electric heating needs to heat a tobacco product with the help of a heating member, so as to volatilize aroma substances in the tobacco product
Implementation Method 2
The heating member base is provided with a ventilation portion to guide an air flow to the heating member
Data Source
AI summary
An electric heating device having an air channel includes an upper cover component and a lower shell component. A heater component is arranged in a lower shell of the lower shell component, and includes a heater shell, a heating member and a heating member base arranged in the heater shell. A ventilation portion is arranged at a heating member base to guide an air flow to the heating member, and is matched with a first air inlet on the lower shell and a second air inlet on the heater shell. The air flow is led to the heating member from an outside of the lower shell through the first air inlet, the second air inlet, and the ventilation in sequence.