Aerosol Heating Power Control Using Puff Pressure Feedback
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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
1Reliability
If electrical energy is used to heat tobacco and aerosol precursor materials, then aerosol production is achieved without combustion, but power control and usability are insufficient
Solution Approach 1:
The patent implements feedback control by using a sensor to detect user inhalation (puff detection) and adjusting power delivery to the heating element based on detected inhalation events. The processing circuitry modulates power according to inhalation characteristics, ensuring consistent aerosol production while adapting to user behavior patterns, thereby improving both reliability and ease of operation
Solution Approach 2:
The system dynamically adjusts power delivery parameters based on real-time detection of user inhalation events. The processing circuitry modifies heating element power levels during operation according to detected puff characteristics, enabling the device to adapt its aerosol production to match user demands, thus enhancing both consistency and usability
2Reliability
If power is continuously supplied to the aerosol production component, then consistent aerosol production is maintained, but energy consumption increases
Solution Approach 1:
The patent employs periodic power delivery by supplying electrical energy to the heating element only during detected user inhalation events rather than continuously. The processing circuitry activates power delivery in response to puff detection and terminates it when inhalation ceases, maintaining aerosol production consistency during use while significantly reducing overall energy consumption during non-use periods
Solution Approach 2:
The system uses sensor-detected user inhalation to automatically trigger and control power delivery without requiring manual user activation. The device self-regulates its power consumption by responding only to actual user demands, eliminating the need for continuous power supply while maintaining consistent aerosol production when needed
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 and ensuring consistent aerosol production by adjusting power according to user inhalation, enhancing user experience.
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
electrical energy to heat tobacco and/or other aerosol generating substrate materials
Implementation Method 3
utilize electrical energy to vaporize or heat a volatile material
Implementation Method 4
produce an aerosol from an aerosol precursor composition
Data Source
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.