Atomizer Air Channel Geometry for Stable Valve Opening
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Solution Overview
Problem
Existing atomizers face challenges in achieving stable airflow stability and valve operation due to high dependency on tolerance ranges during batch production, leading to inconsistent product performance.
Innovation Solution
The atomizer design includes an air channel with a guide groove and a valve where the sectional area decreases towards the tail end, increasing airflow velocity to enhance the force on the valve, allowing easier opening and reducing the need for precise manufacturing tolerances.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the valve design relies on precise tolerance ranges (hardness, thickness, width, sectional area) to ensure stable airflow and valve opening, then the valve operation stability is improved, but the manufacturing complexity and difficulty increase due to the inability to meet batch production requirements
Solution Approach 1:
The patent changes the geometric parameters of the air channel by introducing a guide groove with a specific cross-sectional area that decreases along the airflow direction. This parameter change modifies the airflow characteristics and force distribution on the valve, allowing the valve to operate stably within broader tolerance ranges suitable for batch production
Solution Approach 2:
The air channel is segmented into different sections: an upstream section without the guide groove and a downstream section with the guide groove. This segmentation allows different functional zones within the air channel, with the guide groove section specifically designed to enhance airflow stability and valve opening force while accommodating manufacturing tolerances
2Productivity
If the existing production process is used for the valve, then the production efficiency is maintained, but the batch consistency of products deteriorates due to inability to meet tolerance requirements
Solution Approach 1:
By modifying the air channel geometry with the guide groove, the system becomes less sensitive to variations in valve parameters. This allows existing production processes to continue while achieving better batch consistency, as the airflow stabilization effect compensates for manufacturing variations
3Force
If the sectional area of the air channel is reduced upstream of the valve, then the airflow velocity increases and valve opening force is enhanced, but the air channel cross-sectional area decreases
Solution Approach 1:
The guide groove is introduced only in the upstream section of the air channel, creating a local quality change. This allows the air channel to have different cross-sectional characteristics in different sections: a smaller effective area upstream to increase velocity and force, while maintaining adequate area downstream for proper airflow and valve 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 stabilizes airflow and improves ventilation consistency by expanding the acceptable tolerance range for valve production, enhancing product performance and reducing leakage.
Implementation Method 1
a sectional area of a part of the air channel located upstream of the valve decreases in a direction towards a tail end of the air channel
Data Source
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AI summary
The present disclosure provides an atomizer and an atomizing device. The atomizer comprises a shell, a cover, an atomizing assembly, and a valve. The shell is provided with a liquid storage cavity for accommodating an aerosol atomizing substrate. The cover is arranged in the shell. The atomizing assembly is arranged in the cover for atomizing the aerosol atomizing substrate to generate an aerosol. The cover is provided with an air channel communicating the liquid storage cavity with an external atmosphere and a fluid channel communicating the liquid storage cavity with the atomizing assembly. The air channel is provided with the valve for controlling a communication and a cutoff between the liquid storage cavity and the external atmosphere. A sectional area of a part of the air channel located upstream of the valve decreases in a direction towards a tail end of the air channel.