Aerosol Puff Sensor Airflow Split for Accurate Detection
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Aerosol generating devices face challenges in accurately detecting user puff operations due to variations in airflow pressure and resistance, leading to uncomfortable suction and false detections, especially when airflow paths are not optimally designed.
Innovation Solution
The device incorporates a main path and a diverged path with distinct widths and orientations to manage airflow and minimize false detections by a puff sensor, ensuring comfortable suction resistance and precise operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the size of the airflow path increases, then the suction resistance decreases and user comfort improves, but the pressure of the airflow becomes insufficient for sensor operation
Solution Approach 1:
The airflow path is divided into a main path and a diverged path. The main path has a larger cross-sectional area to reduce suction resistance and improve user comfort, while the diverged path has a smaller cross-sectional area to generate sufficient airflow pressure for sensor operation. This segmentation allows different sections of the airflow path to serve different functional requirements simultaneously.
2Stress or pressure
If the size of the airflow path decreases, then the airflow pressure increases for sensor operation, but the suction resistance increases and user comfort deteriorates
Solution Approach 1:
The airflow path is segmented into two distinct paths: a main path with larger dimensions for user comfort, and a diverged path with smaller dimensions for sensor operation. This eliminates the need to compromise between the conflicting requirements of airflow pressure and suction resistance.
3Device complexity
If a single airflow path is used, then the device structure is simple, but it cannot simultaneously satisfy sensor operation requirements and user comfort requirements
Solution Approach 1:
The airflow path is divided into a main path and a diverged path that connects to another area of the main path. This segmentation provides dedicated flow channels for different functions, ensuring reliable sensor operation while maintaining user comfort, with the added benefit that the paths can be integrated into a compact device structure.
4Measurement precision
If the airflow path is not optimized, then false detections occur due to heated air flow or shaking, but optimizing the path increases device complexity
Solution Approach 1:
By segmenting the airflow path into main and diverged sections with different characteristics, the system can better distinguish between genuine puff operations and false triggers from heated air flow or device shaking, improving detection accuracy without requiring complex additional components.
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
The solution provides a comfortable inhalation experience by maintaining optimal suction resistance and reducing false puff detections, enhancing the device's operational accuracy.
Implementation Method 1
a puff sensor connected to the diverged path and configured to detect flow of at least one of the air or the aerosols in the diverged path
Data Source
AI summary
An aerosol generating device includes an aerosol generator configured to generate aerosols, a main path configured to supply air to the aerosol generator or discharge the air or the aerosols generated in the aerosol generator, a diverged path in which a side is connected to an area of the main path and an other side is connected to another area of the main path, and a puff sensor connected to the diverged path and configured to detect flow of any one of the air and the aerosols in the diverged path.