E-cigarette Heating Element Temperature Control via Duty Cycle Adjustment
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Solution Overview
Problem
Electronic cigarettes face challenges in effectively controlling the temperature of their heating elements, leading to the production of harmful substances and suboptimal smoke quantity, affecting both safety and user experience.
Innovation Solution
A temperature control method that adjusts the duty cycle of the battery voltage based on initial parameters and real-time temperature feedback to maintain the heating element at a preset temperature, ensuring efficient heating and safety.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If the evaporation temperature is increased to improve smoke quantity, then the amount of smoke is improved, but harmful substances are generated and dry burning phenomenon occurs
Solution Approach 1:
The patent implements a temperature control system that uses a temperature detection element to monitor the heating element temperature in real-time and feeds this information back to the processor. The processor adjusts the duty cycle based on the detected temperature to maintain optimal evaporation temperature, preventing both insufficient smoke generation and harmful dry burning conditions.
Solution Approach 2:
The patent dynamically adjusts the duty cycle of the battery voltage output to the heating element based on real-time temperature detection. This dynamic control allows the system to adapt the heating power continuously, ensuring the temperature remains within the optimal range for smoke generation without producing harmful substances.
2Object-generated harmful factors
If the evaporation temperature is decreased to avoid harmful substances, then safety is improved, but the amount of smoke is reduced
Solution Approach 1:
The temperature detection element continuously monitors the heating element temperature and provides feedback to the processor. This feedback mechanism ensures the temperature is maintained at the optimal level sufficient for adequate smoke generation while preventing it from rising to dangerous levels that would produce harmful substances.
Solution Approach 2:
The patent changes the duty cycle parameter dynamically based on temperature conditions. By adjusting this electrical parameter, the system optimizes the balance between generating sufficient smoke and preventing harmful substances, achieving both safety and effectiveness.
3Speed
If the duty cycle is increased to improve heating efficiency, then the temperature control speed is improved, but the temperature control precision deteriorates
Solution Approach 1:
The patent employs periodic adjustment of the duty cycle based on temperature detection feedback. The system periodically monitors the temperature and makes incremental adjustments to the duty cycle, combining rapid response capability with precise temperature control through iterative optimization.
Solution Approach 2:
The patent initially applies a larger duty cycle to achieve rapid heating (excessive action for speed), then transitions to partial adjustments based on feedback to maintain precise temperature control. This two-stage approach ensures both fast temperature control and high precision.
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 method effectively controls the heating element temperature, enhancing the suction effect and safety of electronic cigarettes, thereby improving user experience.
Implementation Method 1
The battery provides power to the heating element in the atomization assembly to increase the temperature of the heating element. The e-liquid in the liquid absorbing element of the atomization assembly is heated by the heating element to evaporate to produce smoke
Implementation Method 2
The temperature detection element is configured to detect a change of a temperature T of the heating element and output the change of the temperature T of the heating element to the processor. The processor is configured to determine the temperature t of the temperature detection element according to an associated physical quantity x of the temperature detection element
Data Source
Figure 1~2
AI summary
A temperature control method for an electronic cigarette, an electronic cigarette and a computer storage medium. The method comprises: (110) when a cigarette lighting signal is received, acquiring a preset maximum duty cycle as the initial duty cycle or determine the initial duty cycle according to the current parameters of the electronic cigarette; (120) adjusting the voltage of a battery according to the initial duty cycle and outputting same to a heating element so that the heating element warms up; (130) acquiring a temperature parameter for characterizing the temperature of the heating element; and (140) when the temperature parameter of the heating element meets a preset temperature control condition, adjusting the duty cycle according to the temperature parameter of the heating element so that the heating element retains its temperature. By means of the method, the temperature of the heating element can be effectively controlled, and the suction effect and suction safety can be ensured.