Induction Heating Electronic Cigarette Temperature Calibration
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Solution Overview
Problem
Existing electronic cigarettes using heating wires suffer from slow reaction and low conductivity efficiency, leading to inaccurate temperature control, which results in burnt flavors in the smoking vapor.
Innovation Solution
An electronic cigarette employing electromagnetic induction heating with two temperature detecting devices connected to a microprocessor, using a formula to calculate the real temperature of the heating element by accounting for the temperature difference between the devices, allowing for precise temperature calibration across multiple modes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a single temperature sensor is used to detect heating element temperature, then the device structure is simple, but the temperature detection is inaccurate due to electromagnetic field interference causing the sensor itself to heat up
Solution Approach 1:
The patent introduces a second temperature sensor as an intermediary reference device. This sensor, positioned away from the heating element, detects the ambient temperature caused by electromagnetic field heating. The microprocessor uses this reference data to compensate for the heating effect on the first sensor, thereby improving temperature measurement accuracy without significantly increasing device complexity
Solution Approach 2:
The system implements a feedback mechanism where the microprocessor continuously monitors temperatures from both sensors, calculates the temperature difference caused by electromagnetic heating, and compensates for this effect in real-time. This feedback loop enables accurate temperature control despite the presence of electromagnetic field interference
2Productivity
If electromagnetic induction heating is used, then heating speed and efficiency are improved, but temperature control accuracy deteriorates due to electromagnetic field interference with temperature sensors
Solution Approach 1:
The second temperature sensor serves as a reference intermediary that measures the ambient temperature rise caused by electromagnetic field heating. By comparing readings from both sensors, the system can distinguish between actual heating element temperature and electromagnetic field-induced temperature rise, maintaining accurate temperature control while benefiting from fast electromagnetic induction heating
Solution Approach 2:
The patent replaces traditional single-sensor temperature detection with a dual-sensor computational system. Instead of relying on a single potentially interfered sensor, the system uses mathematical calculation based on two sensors to derive accurate temperature data, substituting simple mechanical detection with a more sophisticated but accurate measurement approach
3Productivity
If heating wire is used for heating, then the device structure is simple, but heating efficiency and reaction speed are low
Solution Approach 1:
The patent replaces the traditional resistive heating wire with an electromagnetic induction heating system. This substitution uses electromagnetic fields to induce currents in the heating element, generating heat more efficiently and rapidly. Although the structure becomes slightly more complex with the addition of an induction coil, the significant improvement in heating efficiency and reaction speed justifies the increased complexity
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 accurate temperature control of the heating element, eliminating burnt flavors and improving user experience by ensuring consistent and healthy vapor production without hazardous combustion byproducts.
Implementation Method 1
a coil of which produces a high-frequency current as well as produces a fast pace changing magnetic field. Magnetic heater generates vortex and heat in the magnetic field
Implementation Method 2
an electronic cigarette employing electromagnetic induction heating with two temperature detecting devices
Data Source
AI summary
An atomizer is disclosed including a heating element, being configured for heating and atomizing tobacco liquid to generate an aerosol; a tobacco liquid reservoir, being configured for storing the tobacco liquid; and a liquid drive component, being connected with the tobacco liquid reservoir directly or indirectly, and being configured for controlling a volume of tobacco liquid conveyed to the heating element, with the tobacco liquid reservoir set on the atomizer, to control the volume of tobacco liquid in the tobacco liquid reservoir conveyed to the heating element so as to convey measurable tobacco liquid as well as generate measurable aerosol.