Aerosol Power Control Using Pressure-Based Puff Detection
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Solution Overview
Problem
Existing aerosol delivery devices lack improved electronics for enhanced usability and efficient power control during aerosol production.
Innovation Solution
The devices incorporate a power source, aerosol production component, sensor, switch, and processing circuitry that adjust power based on atmospheric air pressure differences to optimize aerosol production, using a predetermined relationship to ensure efficient power delivery during user puffs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If power is continuously supplied to the aerosol production component, then aerosol production is maintained, but energy consumption increases and efficiency decreases
Solution Approach 1:
The patent implements periodic power delivery to the aerosol production component by detecting puff actions through pressure sensors and activating heating only during detected puffs. This pulsed operation模式 replaces continuous heating, significantly reducing energy consumption while maintaining aerosol production during actual user inhalation events.
Solution Approach 2:
The system uses pressure sensors to detect airflow changes caused by user puffs and provides feedback to the control circuitry. The control circuitry adjusts power delivery based on this feedback, activating heating elements only when puff detection confirms user inhalation, thereby optimizing energy usage while ensuring consistent aerosol generation during actual use.
2Use of energy by moving object
If power output is adjusted based on puff detection, then energy efficiency improves, but device complexity increases due to additional sensors and control circuitry
Solution Approach 1:
The system achieves self-service operation by automatically detecting puff actions through integrated pressure sensors and autonomously adjusting power delivery without requiring external control inputs from the user. The device monitors its own operational state and self-regulates heating power based on detected inhalation events, simplifying the user interface while maintaining sophisticated energy management.
3Manufacturing precision
If heating power is increased to improve aerosol production, then vaporization consistency improves, but risk of overheating and energy waste increases
Solution Approach 1:
The patent implements dynamic power adjustment by continuously monitoring puff detection signals and adjusting heating element power in real-time. During detected puff events, power is increased to ensure consistent aerosol generation; between puffs, power is reduced or eliminated to prevent overheating and energy waste, creating a dynamically adaptive heating system.
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 system provides precise power control, extending device usability by ensuring consistent aerosol production aligned with user actions, enhancing user experience and efficiency.
Implementation Method 1
a sensor configured to produce measurements of atmospheric air pressure in an air flow path through the at least one housing
Implementation Method 2
an aerosol production component powerable to produce an aerosol from an aerosol precursor composition
Data Source
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AI summary
An aerosol delivery device is provided. The aerosol delivery device includes a power source, an aerosol production component, a sensor to produce measurements of atmospheric air pressure in an air flow path through at least one housing, and a switch coupled to and between the power source and the aerosol production component. The aerosol delivery device also includes processing circuitry that determines a difference between the measurements of atmospheric air pressure and a reference atmospheric air pressure. Only when the difference is at least a threshold difference, the processing circuitry outputs a signal to cause the switch to switchably connect and disconnect an output voltage from the power source to the aerosol production component to adjust power provided to the aerosol production component to a power target that is variable according to a predetermined relationship between the difference and the power target.