Ultrasonic Atomizer Cavity Layout to Limit E-Liquid Droplet Inhalation
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Solution Overview
Problem
Existing ultrasonic electronic cigarette atomizers suffer from e-liquid droplets being inhaled by the user due to parallel top and bottom surfaces, reduced atomization efficiency due to e-liquid guide ceramics obstructing the atomization region, and energy absorption affecting e-liquid stability and taste.
Innovation Solution
The atomization cavity is designed with an inclined surface forming an angle with the atomization region, an e-liquid guide ceramic positioned above the atomization region with an air passage, and an n-shaped configuration to ensure efficient e-liquid transfer and prevent droplet inhalation, while maintaining efficient atomization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the top surface and bottom surface of the atomization cavity are arranged parallel, then the structure is simple and easy to manufacture, but e-liquid droplets easily flow out along with airflow and are inhaled by the user
Solution Approach 1:
The patent applies asymmetry by changing the parallel arrangement of the top and bottom surfaces of the atomization cavity to a non-parallel arrangement. Specifically, the top surface is inclined relative to the bottom surface, creating an asymmetric structure that redirects airflow away from direct contact with e-liquid droplets, thereby preventing droplet inhalation while maintaining manufacturing simplicity
Solution Approach 2:
The patent introduces a dimensional change by inclining the top surface of the atomization cavity at a specific angle (15°-45°) relative to the bottom surface. This angular inclination adds a directional component to the airflow path, causing air to flow obliquely across the atomization region rather than directly upward, which effectively separates the airflow from e-liquid droplets and prevents their co-movement into the user's mouth
2Device complexity
If the e-liquid guide ceramic is in indirect contact with the atomization region, then the structure is simpler, but the atomization region is hindered or occupied, reducing e-liquid atomization amount and smoke generation
Solution Approach 1:
The patent extracts the e-liquid guide ceramic from direct contact with the atomization region, positioning it above the atomization piece instead. This separation allows the atomization region to be fully exposed and accessible to airflow, maximizing the atomization surface area and e-liquid atomization efficiency while still maintaining the structural simplicity of using a ceramic guide component
Solution Approach 2:
The patent introduces air as an intermediary medium between the e-liquid guide ceramic and the atomization region. The air passage in the ceramic allows airflow to reach the atomization piece without the ceramic physically blocking the atomization region, thus maintaining both structural simplicity and high atomization productivity
3Device complexity
If the e-liquid guide ceramic is in indirect contact with the atomization region, then the structure is simpler, but energy is quickly absorbed, causing e-liquid temperature rise and affecting decomposition and stability
Solution Approach 1:
The patent extracts the e-liquid guide ceramic from proximity to the atomization region, positioning it above the atomization piece with an air passage between them. This spatial separation prevents the ceramic from absorbing excessive thermal energy during atomization, thereby maintaining e-liquid temperature within stable ranges and preventing decomposition or instability of e-liquid components
Solution Approach 2:
The patent uses air as a thermal insulating intermediary between the e-liquid guide ceramic and the atomization region. This air gap acts as a thermal barrier, preventing rapid heat transfer from the atomization piece to the ceramic and subsequently to the e-liquid in the cartridge, thus maintaining e-liquid stability and preventing degradation
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
Prevents e-liquid droplet inhalation, enhances atomization efficiency, maintains e-liquid stability, and improves smoke taste by optimizing airflow and e-liquid distribution.
Implementation Method 1
an ultrasonic atomization piece (32), an insulating seat (33) and a printed circuit board (PCB) (34) are sequentially arranged in the inner cavity of the atomization sleeve (31) from top to bottom
Implementation Method 2
the e-liquid droplets in the smoke near the surface of the ultrasonic atomization piece can directly fall on the ultrasonic atomization piece under the action of gravity
Data Source
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AI summary
The present invention relates to an electronic vaping set, and in particular to an ultrasonic atomizer and an electronic cigarette. The ultrasonic atomizer comprises an atomization cavity with an air inlet and a vapor outlet, wherein an ultrasonic atomization piece is mounted at the bottom of the atomization cavity, the top surface of the atomization cavity is configured to be a first inclined surface, an included angle of 20°-75° is provided between the first inclined surface and the ultrasonic atomization piece, the air inlet is provided at the bottom end of the first inclined surface, the vapor outlet is provided at the top end of the first inclined surface, the air inlet and the vapor outlet are provided at two opposite sides of the atomization cavity respectively, and the bottom surface of the vapor outlet is higher than the top surface of the air inlet, such that an inclined upward airflow channel from the air inlet to the vapor outlet is formed above the ultrasonic atomization piece. The present invention can reduce E-liquid droplets in vapor, thereby preventing the E-liquid droplets from being inhaled by a user, and improving the user experience.