Micropump Boost Converter Control for Aerosol Delivery Heating
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Solution Overview
Problem
Existing aerosol delivery devices, such as electronic cigarettes, lack improved electronics for enhanced usability and efficient aerosol production without significant combustion.
Innovation Solution
Aerosol delivery devices utilizing electrical energy to heat aerosol precursors, such as tobacco-derived materials, with components like rechargeable batteries, heating elements, and control systems to produce inhalable vapors, mimicking traditional smoking experiences without combustion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If electrical energy is used to heat aerosol precursors instead of combustion, then harmful combustion products are reduced, but device complexity increases due to electronic components
Solution Approach 1:
The patent replaces the mechanical combustion system with an electrical heating system. Instead of burning tobacco to generate heat and aerosol, the device uses an electric heater element powered by a battery to vaporize the aerosol precursor. This substitution eliminates combustion products while introducing electronic components, directly resolving the technical contradiction between reducing harmful factors and managing device complexity.
Solution Approach 2:
The patent changes the energy source parameter from chemical (combustion) to electrical. By controlling the electrical power delivered to the heater element through a control circuit, the system can precisely regulate the heating temperature and aerosol generation, avoiding combustion while managing the complexity through electronic control parameters.
2Productivity
If heating element temperature is increased to improve vapor production efficiency, then aerosol generation improves, but risk of combustion increases
Solution Approach 1:
The patent incorporates a control circuit that monitors and regulates the heating element temperature. The control circuit receives feedback about the heating state and adjusts the electrical power delivery accordingly, maintaining the temperature within a range that efficiently produces vapor without reaching combustion thresholds. This feedback mechanism resolves the contradiction between productivity and harmful factors.
Solution Approach 2:
The patent uses dynamic control of the heating element through variable electrical power delivery. Rather than sustained high temperature, the system dynamically adjusts power levels to achieve optimal vaporization while preventing combustion. The control circuit can modulate power based on operational requirements, resolving the contradiction between efficiency and safety.
3Duration of action of moving object
If battery capacity is increased to extend usage duration, then operational duration improves, but device weight and volume increase
Solution Approach 1:
The patent implements periodic charging cycles for the battery. Instead of requiring a large battery capacity for continuous operation, the system uses shorter usage periods followed by recharging. This periodic action allows for smaller, lighter battery units while achieving the same effective usage duration over time, resolving the contradiction between duration and weight.
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
Provides a user-friendly, compact device that delivers tobacco-derived aerosols with flavors and sensations similar to smoking, offering improved usability and efficient vapor production.
Implementation Method 1
heating element configured to heat the aerosol precursor material
Implementation Method 2
vaporize or heat a volatile material
Data Source
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AI summary
An aerosol delivery device is provided that includes power-source terminals to connect a power source to the aerosol delivery device, and a heating element to vaporize components of the aerosol precursor composition. The device includes a micro pump to deliver aerosol precursor composition from the reservoir to the heating element, and a driver circuit to drive the micro pump. The driver circuit includes a boost converter to step up voltage from the power source to the micro pump to thereby power the micro pump. And the device includes a control component with processing circuitry to control the driver circuit to switchably drive the micro pump to deliver the aerosol precursor composition to the heating element. The processing circuitry is also to switchably connect the power source to the heating element independent of the boost converter and thereby power the heating element to vaporize components of the aerosol precursor composition.