Atomizing Head Temperature Sensing for E-Cigarette Aerosol Control
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Solution Overview
Problem
Existing electronic cigarettes often produce aerosol that is too hot and may have a burnt smell due to high heating element temperatures, which is not effectively addressed by existing atomizing heads with temperature sensing elements.
Innovation Solution
An atomizing head with a temperature sensing element integrated into the air passage, a heating element in contact with a liquid conducting element, and a gauze to support the temperature sensing element, allowing for precise temperature control of the aerosol by adjusting the heating element's power output based on sensed temperature data.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the heating element temperature is increased to improve vaporization efficiency, then the aerosol generation efficiency is improved, but the aerosol temperature becomes too high causing burnt smell and discomfort to users
Solution Approach 1:
The patent introduces a temperature sensing element that detects the temperature of the aerosol in real-time and feeds this information back to the control system. The control system then adjusts the heating element's power output based on the sensed temperature, creating a closed-loop feedback control mechanism that maintains aerosol temperature within an optimal range while preventing burnt smell and user discomfort
Solution Approach 2:
The patent dynamically changes the heating power parameter based on temperature feedback. By adjusting the heating element's power output according to the sensed aerosol temperature, the system optimizes vaporization efficiency while preventing excessive temperature that would cause burnt smell, thus resolving the contradiction between productivity and temperature control
2Measurement precision
If a temperature sensing element is added to monitor aerosol temperature, then temperature control capability is improved, but the device complexity increases
Solution Approach 1:
The patent uses a porous ceramic plate as the temperature sensing element's mounting structure. This porous material allows the sensing element to be positioned within the aerosol flow path for accurate temperature measurement while maintaining a relatively simple and integrated structure. The porous ceramic plate serves multiple functions including structural support, aerosol flow guidance, and sensing element mounting, thus minimizing the increase in device complexity
Solution Approach 2:
The temperature sensing element is integrated into the existing atomizing head structure, serving both as a temperature measurement device and as part of the structural assembly. The sensing element is mounted on the porous ceramic plate which itself is part of the atomizing head, creating a multi-functional integrated design that reduces overall device complexity while achieving precise temperature measurement
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 solution ensures that the aerosol is expelled at a predetermined temperature, preventing users from inhaling hot or burnt-tasting aerosol, thereby enhancing user experience and safety.
Implementation Method 1
The heating element is in contact with the liquid conducting element, and configured for heating the tobacco liquid absorbed in the liquid conducting element to form aerosol
Implementation Method 2
The atomizing head further includes a temperature sensing element configured for sensing a temperature of the aerosol. The atomizing head further comprises a gauze in the main body, the gauze is in the air passage, configured for supporting the temperature sensing element, and allows the aerosol to pass through
Data Source
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AI summary
An exemplary atomizing head (100) includes a main body (110), a liquid inlet (113), an air inlet (111), an air outlet (112), an air passage (120), a connecting electrode (140), a liquid conducting element (114) in the main body, a heating element (115) in the main body, and a connecting part (116). The air passage is in communication with the air inlet and the air outlet. The liquid conducting element is configured for absorbing tobacco liquid flowed in through the liquid inlet. The heating element is in contact with the liquid conducting element, and configured for heating the tobacco liquid absorbed in the liquid conducting element to form aerosol. The aerosol is expelled via the air passage. The connecting part is configured for coupling with an atomizer (200). The atomizing head further includes a temperature sensing element (130) configured for sensing a temperature of the aerosol.