Heat Not Burn Controller Power Adjustment
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Solution Overview
Problem
Conventional smoking substitute systems, particularly heat not burn devices, face challenges in maintaining a consistent temperature during user inhalation, leading to potential drops in heating efficiency and user experience.
Innovation Solution
A heat not burn device with a controller that adjusts power supply to the heater based on user inhalation, using sensors to detect drawing and implement pulse width modulation to maintain desired temperature levels, ensuring consistent heating performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If power supply to the heater is increased during user inhalation, then heating efficiency and temperature consistency are improved, but energy consumption increases
Solution Approach 1:
The power supply to the heater is dynamically adjusted based on user inhalation detection. The controller increases power during detected inhalation events to maintain temperature consistency, then reduces power during non-inhalation periods, creating a dynamic power management system that responds to real-time usage conditions
Solution Approach 2:
The system employs sensor feedback to detect user inhalation and automatically adjusts heater power accordingly. The sensor signal feeds back to the controller, which modulates power supply to maintain optimal heating performance only when needed, avoiding unnecessary energy consumption during non-usage periods
2Manufacturing precision
If sensors and controllers are added to detect inhalation and adjust power, then temperature control precision is improved, but device complexity increases
Solution Approach 1:
The device performs self-adjustment of heater power based on automatic sensor detection of user inhalation. The system serves itself by autonomously detecting usage conditions and modulating power without requiring external control or complex user intervention, simplifying the overall control architecture
Solution Approach 2:
The patent replaces complex mechanical temperature control mechanisms with electronic sensing and control systems. Electrical sensors and controllers substitute for mechanical thermostats or manual adjustment mechanisms, enabling more precise and responsive temperature control with simpler overall system design
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 effectively maintains the desired temperature of the consumable during use, enhancing user experience by maintaining heating efficiency and consistency, even during inhalation.
Implementation Method 1
heat may be imparted to the tobacco material by a heating element of the device
Implementation Method 2
The sensor may be a pressure sensor or an acoustic sensor
Implementation Method 3
The controller may be configured to supply power to the heater using pulse width modulation (PMW)
Data Source
Figure 1A~1B
Figure 2A~2B
Figure 2C
AI summary
A heat not burn device comprising a heater and a controller. The controller is configured to determine whether a user is drawing from the device, control the supply of power to the heater so as to be at a first power level and, upon determining that a user is drawing on the device, control the supply of power to the heater so as to be at a second power level that is higher than the first power level.