E-Cigarette Liquid Preheating for Cold-Start Vaporization
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Solution Overview
Problem
Electronic cigarettes struggle to vaporize cigarette liquid in cold conditions due to increased viscosity, leading to reduced fluidity and difficulty in producing vapor when first used in cold environments.
Innovation Solution
An electronic cigarette preheating method that sets preheating parameters and routines in a microcontroller MCU, using a temperature sensor to determine if preheating is needed, and controlling a heating device to heat the cigarette liquid to a preset temperature or for a preset time, with options for adjustable power and stand-by settings to ensure fluidity and vapor production.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the electronic cigarette is used in cold environments without preheating, then the device structure remains simple, but the cigarette liquid viscosity increases and fluidity decreases, preventing vapor production
Solution Approach 1:
The patent applies preliminary action by implementing an automatic preheating function that activates when the device detects low temperature conditions. The microcontroller monitors temperature sensors and automatically initiates heating of the cigarette liquid before the user attempts to vaporize, thereby reducing viscosity and improving fluidity in advance. This resolves the contradiction by adding a preheating step that enables vapor production in cold environments without requiring complex manual intervention.
Solution Approach 2:
The system employs self-service through automatic temperature monitoring and control. The microcontroller continuously reads temperature sensor data and autonomously determines when preheating is necessary, activating the heating element without user input. The system also automatically deactivates preheating when temperature thresholds are met or when the user activates the device for normal operation. This self-regulating mechanism enables cold environment operation while maintaining relatively simple device structure.
2Reliability
If preheating is activated in cold environments, then the cigarette liquid viscosity is reduced and fluidity is improved, but additional heating components and control logic are required
Solution Approach 1:
The patent applies universality by designing the heating element to serve dual functions: normal vaporization heating and cold environment preheating. The same heating coil and power supply circuitry are used for both purposes, controlled by the microcontroller based on temperature conditions and user input. This multi-functionality approach improves vapor production reliability in cold environments without requiring separate dedicated preheating components, thereby limiting the increase in device complexity.
Solution Approach 2:
The system implements feedback through temperature sensors that continuously monitor the cigarette liquid temperature and feed this information back to the microcontroller. The microcontroller compares the sensed temperature against predefined thresholds and automatically adjusts the heating element activation accordingly. This closed-loop feedback mechanism ensures reliable vapor production in cold environments by maintaining appropriate liquid temperature, while the automated control minimizes the need for complex user interaction or additional control components.
3Adaptability or versatility
If automatic temperature monitoring and preheating control are implemented, then vapor production is enabled in cold conditions, but the control system complexity increases
Solution Approach 1:
The control system employs self-service by automatically monitoring temperature through sensors and making decisions about preheating activation without user intervention. The microcontroller reads temperature data, compares it to threshold values, and autonomously controls the heating element. When the user activates the device for normal use, the system automatically deactivates preheating. This self-managing approach enables environmental adaptation to cold conditions while keeping the control system relatively simple, as it requires only basic temperature threshold comparison logic rather than complex algorithms or user programming.
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
The method ensures that the cigarette liquid is preheated, reducing viscosity and improving fluidity, allowing for efficient vapor production even in cold conditions, and includes features like LED indicators and vibration alerts for user convenience.
Implementation Method 1
detecting real-time temperature value by means of a temperature sensor arranged in the electronic cigarette
Implementation Method 2
controlling a heating device arranged in the electronic cigarette by means of the microcontroller MCU to perform preheating
Implementation Method 3
the cigarette liquid is preheated, reducing viscosity and improving fluidity
Implementation Method 4
heats and vaporizes liquid substances or paste-like substances, such as drugs and cigarette liquid, to generate aerosol or vapor
Data Source
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AI summary
An electronic cigarette preheating method comprises setting preheating parameters and preheating routine in a microcontroller MCU arranged in the electronic cigarette. The preheating parameters at least include preset temperature value, and preset heating time or preset target temperature value. The preheating routine comprises: after turning on the electronic cigarette, activating preheating function when preheating button arranged on the electronic cigarette is pressed, detecting real-time temperature value by means of a temperature sensor arranged in the electronic cigarette; by means of the microcontroller MCU, comparing the real-time temperature value with the preset temperature value, and determining whether preheating of the cigarette liquid stored inside the liquid storage chamber is required. If no, directly entering an available stand-by state. If yes, controlling a heating device by means of the microcontroller MCU to perform preheating for the preset heating time or until the preset target temperature value is reached, and then ending the preheating and entering the available stand-by state. The method automatically preheats the cigarette liquid or liquid substances containing drugs such that they may easily penetrate or flow to the heating device for vaporization, whereby the electronic cigarette may easily produce vapor even at low temperature.