Aerosol Atomizer Vent Layout for E-Liquid Leak Isolation
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Solution Overview
Problem
E-liquid leakage and condensate formation in the atomizing chamber of aerosol generation devices can cause damage to the control board and power supply due to contact with sensors and control boards, leading to burnout.
Innovation Solution
An aerosol generation device with a liquid storage groove in the end cover communicating with the atomizing chamber, an air inlet hole positioned higher than the groove's bottom, and a sensor mounting member with an air passage to prevent e-liquid and condensate from reaching the sensor and control board.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Extent of automation
If an airflow channel is provided between the atomizer and sensor to enable automatic power supply, then the power supply device can automatically supply power to the atomizer, but e-liquid and condensate can leak through the airflow channel to the sensor and control board, causing the control board to burn out
Solution Approach 1:
The end cover is segmented into multiple functional regions: a liquid storage groove for collecting e-liquid, an air inlet hole for airflow, and a sensor mounting area. This segmentation allows the air inlet hole entrance to be positioned higher than the liquid storage groove bottom wall, creating a physical barrier that prevents e-liquid from reaching the sensor and control board while maintaining the airflow channel for automatic power supply detection
Solution Approach 2:
The air inlet hole acts as an intermediary structure that mediates between the airflow channel and the sensor mounting area. By positioning the air inlet hole entrance higher than the liquid storage groove bottom wall, it serves as a protective barrier that allows air flow through while blocking e-liquid and condensate from reaching the sensor and control board, thus protecting the control board reliability while maintaining automatic power supply functionality
Data Source
AI summary
An aerosol generation device includes an atomizer and a power supply device. An atomizing chamber is formed in the atomizer; the power supply device includes a housing, a mounting bracket, and a sensor; the mounting bracket includes a main body, an end cover, and a bottom seat; a control board is disposed in the main body and covers above the sensor; a liquid storage groove configured for collecting e-liquid leaked from the atomizer is formed in the end cover and communicated with the atomizing chamber; the end cover is further provided with an air inlet hole, and the entrance of the air inlet hole is higher than the bottom wall of the liquid storage groove for preventing the leaked e-liquid from entering the sensor through the air inlet hole; a sensor mounting member is sleeved outside the sensor and provided with an air passage communicated with the air inlet hole.