EVPS Temperature Regulation via Sensor Feedback
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Solution Overview
Problem
Some users of electronic vapour provision systems, such as e-cigarettes, experience vapour that is too hot due to individual sensitivity or unusual inhalation patterns, which existing devices fail to adequately address.
Innovation Solution
A temperature regulating system for electronic vapour provision systems that includes a mouthpiece with a temperature sensor, airflow sensors, and a processor that adjusts the vapour generation process based on user feedback and environmental conditions to reduce vapour temperature.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the heating element operates at high temperature to vaporize the liquid payload, then the vapor generation efficiency is improved, but the vapor temperature becomes too hot for some users
Solution Approach 1:
The system incorporates a temperature sensor in thermal communication with the mouthpiece that provides feedback to the controller. When the sensor detects vapor temperature exceeding a threshold, the controller reduces power to the heating element, dynamically adjusting the temperature to prevent excessive heat while maintaining efficient vapor generation during normal operation
Solution Approach 2:
The heating element's power input is dynamically adjusted based on real-time temperature sensor feedback. The system transitions between different power states (high power for efficient vaporization, reduced power when temperature exceeds threshold) to balance productivity and temperature control
2Device complexity
If the device operates without temperature sensing and control mechanisms, then the device complexity is reduced, but the ability to regulate vapor temperature for user comfort is lost
Solution Approach 1:
A temperature sensor positioned in thermal communication with the mouthpiece provides feedback to the controller, enabling the system to detect when vapor temperature exceeds a threshold and automatically adjust heating power accordingly
Solution Approach 2:
The system changes the operating parameter (heating power) based on temperature sensor feedback. When the detected temperature exceeds a threshold, the controller reduces power to the heating element, thereby regulating vapor temperature without requiring complex mechanical adjustments
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 system effectively reduces the likelihood of hot puffs by adjusting the heating temperature and air intake of the e-cigarette in response to user feedback and environmental factors, providing a more comfortable vaping experience.
Implementation Method 1
a temperature sensor (63) thermally coupled to a flow path for vapour inhaled by a user
Implementation Method 2
a sensor (62) to detect at least one parameter of the airflow within the e-cigarette
Implementation Method 3
changing at least a first aspect of the vapour generation process to reduce the vapour temperature at the mouthpiece
Data Source
AI summary
A temperature regulating system for an electronic vapour provision system (EVPS) comprises a sensor to detect at least one parameter of the airflow within the EVPS; a user interface adapted to receive an indication from a user that a puff of the EVPS was too hot; and a processor adapted to change at least a first aspect of a vapour generation process to reduce the vapour temperature at the mouthpiece, based upon sensor data from the at least one parameter of the airflow, in response to the received indication.