Capillary Groove Atomization Cavity for Heat and Leak Control
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Solution Overview
Problem
Atomization devices, such as e-cigarettes, face issues of structural instability and liquid leakage due to high temperatures causing deformation and scorching of the cavity wall, as well as oil frying and aerosol substrate accumulation leading to leakage.
Innovation Solution
An atomization device with a capillary liquid absorbing structure on the inner wall of the atomization cavity to absorb and endothermically atomize aerosol substrate, controlling the cavity wall temperature below 150°C and reducing aerosol substrate accumulation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If the temperature in the atomization cavity is excessively high, then the atomization effect is improved, but the cavity wall undergoes deformation and scorching causing structural instability
Solution Approach 1:
The inner wall of the atomization cavity is equipped with heat-resistant material specifically at the location prone to high temperature, while other parts maintain original material properties. This localized application of heat-resistant material protects the cavity wall from deformation and scorching without affecting the overall atomization performance.
2Temperature
If the aerosol substrate is heated at high temperature, then atomization is enhanced, but oil frying phenomenon occurs due to uneven distribution causing liquid leakage
Solution Approach 1:
A heat-resistant coating layer is introduced as an intermediary between the heating element and the aerosol substrate. This coating layer acts as a mediator that distributes heat more evenly, preventing localized overheating and oil frying phenomenon, thereby reducing liquid leakage while maintaining effective atomization.
3Stability of the object's composition
If the cavity wall temperature is reduced to prevent deformation, then structural stability is improved, but atomization efficiency decreases
Solution Approach 1:
Heat-resistant material is applied locally at the cavity wall position most susceptible to thermal damage, allowing that specific area to withstand higher temperatures without deformation. This localized protection enables the cavity to maintain structural stability while the atomization process operates at temperatures sufficient for efficient vaporization.
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
Improves structural stability by preventing deformation and scorching, and reduces liquid leakage by locking aerosol substrate, enhancing the anti-leakage effect.
Implementation Method 1
A capillary groove is defined on the part of the inner wall of the atomization cavity far from the air outlet channel. The capillary groove is extended vertically in a direction toward the air outlet channel.
Implementation Method 2
after the first capillary liquid absorbing structure absorbs the aerosol substrate, the temperature of the cavity wall of the atomization cavity at the position where the first capillary liquid absorbing structure is located may be lowered with the endothermic atomization of the aerosol substrate
Data Source
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AI summary
An atomization device (10) is provided. The atomization device (10) includes an air inlet (11), an air outlet channel (18), and an atomization cavity (13). The atomization cavity (13) is in communication with the air inlet (11) and the air outlet channel (18) respectively. An atomization assembly (14) is arranged in the atomization cavity (13). A capillary groove (152) is defined on the part of the inner wall of the atomization cavity (13) far from the air outlet channel (18). The capillary groove (152) is extended vertically in a direction toward the air outlet channel (18).