Electronic Vapor Device Temperature Pressure Sensor Control
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Solution Overview
Problem
Existing electronic vapor provision devices, such as electronic cigarettes, lack sophisticated temperature and pressure monitoring, which can lead to inconsistent vaporization and potential safety issues due to overheating.
Innovation Solution
Incorporating a combined temperature and pressure sensor, along with a microprocessor, to accurately measure ambient temperature and pressure, adjust vaporization parameters, and implement safety features like a wait mode or device disablement in case of excessive temperature.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a temperature sensor is added to monitor and control vaporization temperature, then vaporization consistency and safety are improved, but device complexity increases
Solution Approach 1:
The temperature sensor provides real-time temperature feedback to the control unit, which adjusts the heating element power accordingly. This closed-loop feedback system maintains consistent vaporization temperature and prevents overheating, directly resolving the contradiction by improving reliability through automated temperature control.
Solution Approach 2:
The system uses the temperature sensor data to automatically regulate its own heating process without external intervention. The control unit autonomously adjusts heating power based on temperature readings, enabling the device to self-correct temperature deviations and maintain consistent vaporization.
2Measurement precision
If a combined temperature and pressure sensor is used to measure environmental conditions, then measurement accuracy is improved, but manufacturing complexity increases
Solution Approach 1:
The patent combines temperature and pressure sensing capabilities into a single integrated sensor unit. This merging of functions allows simultaneous measurement of both environmental parameters with high accuracy while simplifying the overall device architecture, reducing the number of separate components needed, and easing manufacturing processes.
Solution Approach 2:
The combined sensor serves multiple functions: measuring both temperature and pressure, providing environmental condition data for vaporization control, and enabling safety monitoring. This multi-functionality improves measurement precision while avoiding the complexity of implementing separate sensing systems.
3Measurement precision
If the temperature sensor is located towards the tip end away from the heating element, then measurement accuracy of ambient temperature is improved, but the sensor is further from the control zone
Solution Approach 1:
The temperature sensor is extracted from the immediate heating zone and positioned at the tip end of the device. This separation allows the sensor to measure true ambient temperature without being influenced by the heating element's thermal field, improving measurement accuracy by removing the sensor from the thermal interference zone.
Solution Approach 2:
The patent uses the device's internal air passage or housing as a thermal intermediary between the ambient environment and the temperature sensor. This intermediary structure allows the sensor to accurately sense ambient temperature while being physically protected and positioned away from direct thermal exposure to the heating element.
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 solution enables more consistent and controlled vaporization, improves safety by preventing overheating, and allows for precise adjustments based on environmental conditions, enhancing the overall performance and safety of electronic vapor provision devices.
Implementation Method 1
the device further comprises a pressure sensor and a temperature sensor
Implementation Method 2
the device further comprises a pressure sensor and a temperature sensor
Implementation Method 3
causes a heater coil to heat up and vaporize the liquid
Implementation Method 4
the combined sensor is configured in use to determine the temperature and the pressure and provide a pressure reading that is dependent on the temperature
Data Source
AI summary
An electronic vapor provision device including a power cell and a computer. wherein the computer includes a computer processor, a memory and an input-output means, and wherein the device further includes a pressure sensor and a temperature sensor.