Air Switch Airflow Channel Design for Electronic Cigarettes
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The airflow channel in electronic cigarettes is difficult to maintain consistent size, and fixing mechanisms like pads or welding points within the airflow channel can lead to air pollution, harming consumers' health.
Innovation Solution
An air switch with a switch body containing an airflow sensor and a controlling device, which includes a parallel-plate capacitor to sense pressure differences and a conductive film to form a capacitor, allowing for airflow channel design outside the airflow channel, thus avoiding pollution from fixing mechanisms.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If fixing mechanisms like pads or welding points are disposed within the airflow channel, then the air switch can be mounted, but the air sucked into the airflow channel becomes polluted, harming consumers' health
Solution Approach 1:
The patent extracts the harmful fixing mechanisms (pads or welding points) from the airflow channel by providing a dedicated mounting structure that positions these mechanisms outside the airflow path. The mounting structure includes a mounting plate with mounting holes that allow fixation without placing pads or welding points within the airflow channel, thereby eliminating air pollution while maintaining mounting reliability.
2Ease of manufacture
If the airflow channel size is not consistently maintained, then manufacturing is easier, but the airflow performance becomes inconsistent
Solution Approach 1:
The patent applies preliminary action by pre-defining the airflow channel dimensions and geometry in the mounting structure design. The mounting plate and associated components are designed with predetermined airflow channel sizes that ensure consistent airflow performance. This preliminary definition of geometric parameters allows manufacturers to produce consistent airflow channels through standard manufacturing processes without requiring excessive precision control during assembly.
3Measurement precision
If a parallel-plate capacitor is used to sense pressure differences, then airflow detection precision is improved, but device complexity increases
Solution Approach 1:
The patent employs flexible thin films as one of the capacitor plates in the parallel-plate capacitor sensor. This thin film structure allows for simplified manufacturing compared to rigid plate structures, reducing device complexity while maintaining the pressure difference sensing precision. The thin film can be easily integrated into the mounting structure and responds flexibly to pressure changes, providing accurate airflow detection without excessive structural complexity.
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 air switch ensures a consistent airflow channel size and prevents pollution by positioning fixing mechanisms outside the airflow channel, enhancing user health safety.
Implementation Method 1
the conductive film cooperates with the first electrode plate to form a parallel-plate capacitor to sense a difference in the pressure between the negative chamber and the balance chamber
Data Source
AI summary
The present invention provides an electronic cigarette and a battery device thereof. The air switch includes a switch body and an airflow channel extending through the switch body. In present invention, because the airflow channel is disposed within the switch body of the air switch, it is better to design the size of the airflow channel which extending through the air switch, at the same time, fixing mechanism for mounting the air switch, such as pad or welding points can be arranged out of the airflow channel, to protect the air sucked into the second airflow channel from being polluted, thereby protecting the consumers' health.