Aerosol Cartridge Coupling Gap and Bypass Airflow for Easier Draw
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Solution Overview
Problem
There is a need for an aerosol generating device that forms an appropriate airflow path when a cartridge is detachably combined with a main body, ensuring smooth air circulation and minimizing draw resistance.
Innovation Solution
The device includes a cartridge with a first airflow passage surrounding an aerosol storage and a bypass portion connecting an inlet to an atomizer, and a main body with a coupling gap for external air intake, eliminating the need for a separate external air inlet.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a cartridge is detachably coupled to a main body of an aerosol generating device, then the device structure becomes modular and easier to manufacture, but the airflow path becomes complex and draw resistance increases
Solution Approach 1:
The aerosol generating device is divided into a main body and a detachable cartridge, with each having specific airflow passage functions. The main body includes a first airflow passage for external air intake, while the cartridge includes a second airflow passage for aerosol generation and discharge. This segmentation allows independent optimization of each module's airflow path, simplifying the overall design despite modular complexity.
Solution Approach 2:
The patent introduces a bypass airflow passage that branches from the first airflow passage and bypasses the atomization part, creating a three-dimensional airflow network. This additional dimensional pathway allows air to flow through multiple routes simultaneously, reducing resistance by distributing airflow across different spatial dimensions rather than forcing all air through a single linear path.
2Device complexity
If external air inlet is integrated into the coupling portion, then the number of parts is reduced and assembly is simplified, but airflow control becomes more difficult
Solution Approach 1:
The external air inlet function is merged into the coupling portion between the main body and cartridge. The coupling portion includes a first air inlet that communicates with the first airflow passage, eliminating the need for separate external air inlet structures. This integration reduces part count while maintaining airflow control through the designed passage geometry.
Solution Approach 2:
The coupling portion is designed with specific local airflow characteristics, including the first air inlet positioned to receive external air and the bypass airflow passage branching at an optimized location. This local optimization of airflow properties at the coupling interface ensures proper airflow distribution without requiring additional control mechanisms.
3Ease of operation
If airflow path is optimized for smooth circulation, then draw resistance is reduced and user experience is improved, but the structural design becomes more complex
Solution Approach 1:
The bypass airflow passage creates a three-dimensional airflow network with multiple parallel pathways. Air can flow through the atomization part or bypass it via the second airflow passage, distributing airflow across different spatial dimensions. This reduces draw resistance by providing multiple flow routes rather than forcing all air through a single constrained path.
Solution Approach 2:
The airflow passages are pre-configured in the cartridge and main body structures to guide air flow smoothly from the first air inlet through the atomization part or bypass passage to the mouthpiece. This preliminary structural arrangement of airflow paths eliminates the need for additional active flow control mechanisms during operation.
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 airflow circulation and reduces draw resistance by forming a predetermined airflow path through the cartridge and main body, enhancing user experience.
Implementation Method 1
a heating-type aerosol generating device which generates aerosols by heating an aerosol generating material
Implementation Method 2
a cartridge that stores an aerosol generating material in a liquid or gel state and atomizes the stored aerosol generating material
Data Source
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AI summary
An aerosol generating device includes: a cartridge including a storage for storing the aerosol generating material and a first airflow passage through which airflow moves along a path surrounding the storage; and a main body including a coupling portion to which the cartridge is detachably coupled, wherein a gap is formed between the main body and the cartridge such that external air flows into the aerosol generating device through the gap.