E-Cigarette Preheating Control for Low-Temperature Vapor Start

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Solution Overview

Problem

Electronic cigarettes face difficulty in vapor production at low temperatures due to increased viscosity of cigarette liquid, leading to reduced fluidity and poor initial performance in cold conditions, as they lack a preheating method to facilitate liquid permeation and vaporization.

Innovation Solution

An electronic cigarette preheating method and system that sets preheating parameters and routines in a microcontroller, using a communication connection between an intelligent terminal and the device, to detect real-time temperature and control heating, ensuring the cigarette liquid is preheated before use, with adjustable parameters for temperature, time, and power based on temperature, and automatic standby and shutdown features.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If no preheating method is provided when the electronic cigarette is turned on, then the device structure remains simple and operation is straightforward, but the viscosity of cigarette liquid increases at low temperature, reducing fluidity and preventing proper vapor production

Engineering Contradiction:
Improvevapor production capabilityVSAvoidpreheating system complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent applies preliminary action by implementing a preheating routine that activates automatically when the electronic cigarette is turned on. The microcontroller executes a preheating program that heats the cigarette liquid before normal vaporization begins, ensuring the liquid reaches appropriate temperature and fluidity. This preliminary heating action prevents the technical contradiction by preparing the liquid in advance to overcome low-temperature viscosity issues.

Inventive Principle:
Principle #10Preliminary action

2Reliability

If preheating is implemented to warm up the cigarette liquid, then vapor production is improved in cold conditions, but the heating device complexity and power consumption increase

Engineering Contradiction:
Improvefluidity of cigarette liquidVSAvoidpower consumption
Core Design Contradiction:
ReliabilityVSUse of energy by moving object

Solution Approach 1:

The patent applies dynamics by making the preheating process adjustable and adaptive. The microcontroller allows modification of preheating parameters such as temperature, time, and power levels. The system can dynamically adjust heating intensity and duration based on detected temperature conditions and user preferences, optimizing energy consumption while ensuring adequate liquid fluidity for reliable vapor production.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The patent applies parameter changes by allowing the microcontroller to modify preheating parameters (temperature, time, power) based on operating conditions. The system can change heating parameters dynamically during the preheating process and across different operating scenarios, enabling efficient energy utilization while achieving the required liquid fluidity for reliable vaporization.

Inventive Principle:
Principle #35Parameter changes

3Adaptability or versatility

If preheating parameters are fixed in the microcontroller, then the system is simple to operate, but the device lacks adaptability to different user preferences and environmental conditions

Engineering Contradiction:
Improvepreheating parameter adjustmentVSAvoidoperation complexity
Core Design Contradiction:
Adaptability or versatilityVSEase of operation

Solution Approach 1:

The patent applies self-service by enabling users to independently adjust preheating parameters through an interface connected to the microcontroller. Users can modify temperature, time, and power settings according to their preferences and environmental conditions without requiring technical assistance or complex procedures. The system serves itself by providing intuitive parameter adjustment capabilities that adapt to individual user needs while maintaining ease of operation.

Inventive Principle:
Principle #25Self-service

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

Enables automatic and efficient preheating of cigarette liquid, improving vapor production in cold conditions by ensuring the liquid is at an optimal temperature and fluidity, enhancing user experience and device performance.

Implementation Method 1

controlling the heating device arranged in the electronic cigarette to perform preheating for the preset heating time or until the preset target temperature value is reached

Methodology Applied
Scientific EffectHeating: Heating

Implementation Method 2

detecting real-time temperature value by means of a temperature sensor arranged in the electronic cigarette

Methodology Applied
Scientific EffectTemperature detection:

Implementation Method 3

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 or not

Methodology Applied
Scientific EffectTemperature comparison:

Implementation Method 4

performing data interaction by a communication connection established between an intelligent terminal and the electronic cigarette

Methodology Applied
Scientific EffectCommunication:

Data Source

PatentEP3939450B1Electronic cigarette preheating method and preheating system
Publication Date: 2023.07.26 HUIZHOU HAPPY VAPING TECH LTD
  • EP3939450B1 patent drawingFigure 1
  • EP3939450B1 patent drawingFigure 2
  • EP3939450B1 patent drawingFigure 3

AI summary

An electronic cigarette preheating method and preheating system are provided. The preheating method performs data interaction by communication connection established between an intelligent terminal and the electronic cigarette, allows for displaying and changing preheating parameters on a control software interface of the intelligent terminal, and sends the updated preheating parameters to the microcontroller MCU arranged in the electronic cigarette to replace previous preheating parameters preset in the microcontroller MCU. When the electronic cigarette is turned on, based on real-time temperature value detected by temperature sensor arranged in the electronic cigarette, determining whether preheating of the cigarette liquid stored inside the liquid storage chamber is required by means of the microcontroller MCU. If yes, based on preheating parameters and preset routine, controlling the heating device of the electronic cigarette by means of the microcontroller MCU to perform heating for the preset heating time or until the preset target temperature value is reached. Then, ending the preheating and entering the available stand-by state of the electronic cigarette. After preheating, the cigarette liquid or liquid substances containing drugs may easily penetrate or flow to the heating device for vaporization, such that the electronic cigarette may easily produce vapor even at low temperature.