Atomizer Connection Detection With Resonance Voltage Limiting
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Solution Overview
Problem
The detection of an atomizer connection to a power supply assembly in electronic atomization devices results in excessively high resonance voltages, which can damage resonant components.
Innovation Solution
Adjust the resonance frequency and/or pulse voltage of the inverter to maintain the resonance voltage below the voltage resistance value of the resonant components by controlling the battery cell to provide a pulse voltage and adjusting the resonance frequency when detecting the atomizer connection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a pulse voltage is applied to detect atomizer connection, then the connection status can be detected, but the resonance voltage becomes excessively large and may damage resonant components
Solution Approach 1:
The patent applies dynamics by making the resonance frequency adjustable rather than fixed. The controller dynamically changes the resonance frequency based on whether the atomizer is connected, allowing the system to operate at different frequencies for different functions (detection vs. normal operation). This resolves the contradiction by enabling safe detection frequencies that prevent damage while maintaining detection capability.
Solution Approach 2:
The patent changes the resonance frequency parameter to resolve the technical contradiction. By adjusting the resonance frequency to a first frequency during detection (when atomizer is disconnected) and to a second frequency during normal operation, the system can detect connections without generating damaging voltage levels, thus protecting resonant components while maintaining detection accuracy.
2Power
If the inverter operates at high resonance frequency for efficient heating, then heating efficiency is improved, but the resonance voltage may exceed the voltage resistance of resonant components
Solution Approach 1:
The system dynamically adjusts the resonance frequency based on operational state. During normal heating operation, it uses a second resonance frequency optimized for power efficiency. During connection detection (when atomizer is disconnected), it switches to a first resonance frequency that ensures safe voltage levels. This dynamic adjustment maintains both heating efficiency and component reliability.
Solution Approach 2:
The controller uses feedback from the connection detection state to determine the appropriate resonance frequency. When the atomizer is detected as disconnected, the controller switches to the safer first frequency. When connected, it switches to the more efficient second frequency. This feedback mechanism ensures that high power operation only occurs when safe, maintaining both efficiency and reliability.
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
Prevents damage to resonant components by ensuring the resonance voltage remains within safe limits, thereby protecting the device.
Implementation Method 1
the susceptor being configured to be able to be penetrated by a varying magnetic field to generate heat
Implementation Method 2
the susceptor being configured to be penetrated by a varying magnetic field to generate heat, to heat a liquid substrate to generate an aerosol
Implementation Method 3
an inverter, the inverter being configured to generate a varying magnetic field
Implementation Method 4
a resonance voltage of the inverter is lower than a voltage resistance value of the at least one resonant component
Data Source
AI summary
An electronic atomization device and a control method thereof are provided. The electronic atomization device includes a power supply assembly and an atomizer. The atomizer includes a susceptor. The power supply assembly includes a battery cell; an inverter, including at least one resonant component, the inverter being configured to generate a varying magnetic field; and a controller, configured to control the battery cell to provide a pulse voltage for the inverter, to detect whether the atomizer is connected to the power supply assembly, and further configured to adjust a resonance frequency of the inverter and/or a voltage value of the pulse voltage when detecting whether the atomizer is connected to the power supply assembly, so that a resonance voltage of the inverter is lower than a voltage resistance value of the at least one resonant component.