Electronic Cigarette Sensor Isolation for Leakage Prevention
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional electronic cigarettes face issues with sensor detection due to the placement of the heating member in the airflow passage, which hinders suction force and causes smoke liquid leakage, leading to sensor obstruction and potential short-circuiting, as well as a humid environment that affects the sensor's service life.
Innovation Solution
The electronic cigarette design positions the heating member outside the inductive chamber, isolating it from the airflow passage, and uses a sensor assembly with a splitter plate and shutoff piece to create a separate inductive chamber for pressure detection, while a deformable film prevents contamination and ensures accurate suction detection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the heating member is placed in the airflow passage to enable smoke generation, then the electronic cigarette can produce smoke, but the heating member hinders suction force and causes smoke liquid leakage that blocks the air inlet and may short-circuit the sensor
Solution Approach 1:
The sensor is extracted from the airflow passage and placed in a separate sensing chamber, isolating it from the heating member and smoke liquid. This allows the heating member to remain in the airflow passage for smoke generation while the sensor detects pressure changes without exposure to smoke liquid leakage or obstruction hazards
Solution Approach 2:
The device is segmented into distinct functional zones: the airflow passage containing the heating member for smoke generation, and a separate sensing chamber containing the sensor for pressure detection. The splitter plate creates this segmentation, allowing independent optimization of each zone without interference
2Measurement precision
If the sensor is placed in the airflow passage to detect suction action, then suction detection can be achieved, but the sensor is exposed to humid environment and smoke liquid that reduces its service life
Solution Approach 1:
The sensor is extracted from the humid airflow passage environment and placed in the separate sensing chamber, which maintains pressure communication with the airflow passage for accurate suction detection while protecting the sensor from exposure to smoke liquid and excessive humidity that would reduce its service life
Solution Approach 2:
The splitter plate and airflow channeling structure act as intermediaries, transmitting pressure changes from the airflow passage to the sensing chamber where the sensor is located. This allows the sensor to detect suction actions accurately without being directly exposed to the harmful humid environment
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
This configuration allows for reliable suction detection without obstructing the airflow, reduces the risk of smoke liquid leakage and sensor short-circuiting, and extends the sensor's service life by maintaining a less humid environment.
Implementation Method 1
a sensor positioned in the inductive chamber and configured to detect an air pressure signal in the inductive chamber
Implementation Method 2
a heating member positioned outside of the inductive chamber and configured to heat a smoke liquid to generate a vapor
Data Source
AI summary
An atomizer includes a storage member and a cigarette holder. An inductive chamber and an airflow passage are positioned in the storage member. An air suction port is defined on the cigarette holder. The cigarette holder is movably sleeved on an end of the storage member. The cigarette holder can be in a locked state or in an unlocked state with respect to the storage member by moving the cigarette holder. When the cigarette holder is in the locked state, at least one of the inductive chamber and the airflow passage is closed by the cigarette holder. When the cigarette holder is in the unlocked state, the air suction port communicates with both the inductive chamber and the airflow passage.