Integrated Airflow Sensor Circuit for Electronic Atomizing Device
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Solution Overview
Problem
Existing electronic atomizing devices require complex circuitry with main control chips and single charging ICs to manage airflow sensing, power charging, and output, which complicates the design and increases costs.
Innovation Solution
An electronic atomizing device with an integrated airflow sensor that includes a switch transistor and diode to manage power charging and output, eliminating the need for a main control chip MCU and single charging IC, by using a resistor to control the switch transistor and diode to manage airflow sensing and power distribution based on voltage levels.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a main control chip MCU and single charging IC are used to manage airflow sensing, power charging, and output, then the device can effectively control power distribution and airflow sensing, but the circuit structure becomes complex and costs increase
Solution Approach 1:
The patent combines multiple functions (airflow sensing, power charging management, and power output control) into a single integrated airflow sensor that directly interfaces with the battery cell and charging socket. This eliminates the need for separate main control chip MCU and charging IC, thereby simplifying the circuit structure while maintaining effective control capabilities.
Solution Approach 2:
The airflow sensor is designed to perform multiple functions: it senses airflow, manages power charging from the charging socket, and controls power output to the heating element. This multi-functional design replaces what previously required multiple dedicated components, reducing overall system complexity.
2Ease of operation
If additional control components (main control chip MCU and charging IC) are added to manage power and airflow, then power distribution and airflow sensing can be effectively managed, but manufacturing costs increase
Solution Approach 1:
By merging the functions of airflow sensing, charging management, and power control into a single integrated airflow sensor, the patent reduces the total component count. This directly lowers manufacturing costs while preserving the ease of operation for power management through the sensor's intelligent control logic.
3Device complexity
If the circuit structure is simplified by removing main control chip MCU and charging IC, then costs are reduced and device complexity decreases, but the ability to manage power charging and output may be compromised
Solution Approach 1:
The airflow sensor is designed to autonomously manage power charging and output without requiring external control chips. It directly monitors voltage levels, controls the switch transistor for power distribution, and manages the diode for charging current, thereby maintaining full power management capability while simplifying the overall circuit structure.
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
Simplifies the circuit structure, reduces costs, and effectively manages airflow sensing and power output, ensuring efficient operation without the need for additional control components.
Implementation Method 1
a diode disposed to allow electric currents flowing from the positive electrode of the charging socket toward the first port of the airflow sensor
Implementation Method 2
The switch transistor is disposed to be switched on when the positive electrode of the charging socket is at a low voltage level in order for electrically connecting the first port of the airflow sensor with the heating element, and disposed to be switched off connection between the first port of the airflow sensor and the heating element when the positive electrode of the charging socket is at a high voltage level
Implementation Method 3
a battery cell, a charging socket disposed to power charging the battery cell
Implementation Method 4
a heating element for heating the aerosol substrate to generate aerosols
Data Source
AI summary
An electronic atomizing device includes a battery cell, a heating element, a charging socket used for power charging the battery cell, and an airflow sensor used for measuring airflows flowing through the electronic atomizing device and being formed by inhaling of users. The airflow sensor includes a first port and a second port. The first port includes two electrical connections. A first electrical connection is electrically connected with a positive electrode of the charging socket, and a second electrical connection is electrically connected with the heating element via a switch transistor. The second port is electrically connected with a positive electrode of the battery cell. The switch transistor is disposed to be switched on when the positive electrode of the charging socket is at a low voltage level, and disposed to be switched off when the positive electrode of the charging socket is at a high voltage level.