Aerosol Device Induction Heating Abnormal Cutoff
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Solution Overview
Problem
Aerosol generating devices face issues with abnormal heating of heating elements due to errors in sensing values, leading to user dissatisfaction and increased power consumption.
Innovation Solution
The device includes a battery, an induction coil, a susceptor, a temperature sensor, and a controller that cuts off power to the induction coil based on abnormal heating conditions detected by the temperature sensor.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the heating element operates continuously to maintain heating function, then the heating performance is improved, but abnormal heating and power consumption increase due to sensing errors
Solution Approach 1:
The patent implements a feedback control mechanism where the controller continuously monitors temperature sensing values from the temperature sensor and adjusts power supply to the heating element accordingly. When the sensed temperature deviates from expected values indicating abnormal heating, the controller reduces or cuts off power supply to prevent excessive power consumption while maintaining reliable heating operation under normal conditions.
Solution Approach 2:
The system dynamically adjusts the power supply state based on real-time temperature monitoring. The controller transitions the heating element between different power states (normal operation, reduced power, or cutoff) depending on the detected temperature conditions, allowing the system to adapt to abnormal situations and prevent unnecessary power consumption while maintaining heating reliability when needed.
2Productivity
If the heating element operates at high temperature to ensure aerosol generation, then the aerosol generation performance is improved, but abnormal heating occurs when sensing values are erroneous
Solution Approach 1:
The controller uses feedback from the temperature sensor to monitor actual heating conditions and compare them with expected temperature profiles. When sensing errors cause abnormal temperature readings, the feedback mechanism detects the deviation and adjusts power supply to maintain reliable temperature control, preventing abnormal heating while ensuring adequate aerosol generation performance under normal operating conditions.
Solution Approach 2:
The system prepares for potential sensing errors by implementing preemptive temperature monitoring and comparison with expected temperature profiles. Before abnormal heating can occur, the controller detects deviations in temperature sensing values and takes corrective action by adjusting power supply, thus cushioning against the harmful effects of sensing errors and maintaining temperature control accuracy.
3Reliability
If the temperature sensor continuously monitors to detect abnormal heating, then the temperature control reliability is improved, but the device complexity increases
Solution Approach 1:
The patent implements a feedback-based temperature monitoring system where the temperature sensor continuously monitors heating element temperature and the controller compares sensed values with expected temperature profiles. This feedback mechanism provides reliable temperature control by detecting abnormal heating conditions while maintaining relatively simple system architecture through straightforward comparison logic and power supply adjustment.
4Reliability
If the controller implements multiple abnormal heating conditions to prevent overheating, then the safety is improved, but the control logic complexity increases
Solution Approach 1:
The patent segments the temperature monitoring and control process into distinct abnormal heating conditions (first abnormal heating condition and second abnormal heating condition), each with specific detection criteria and corresponding power supply responses. This segmentation allows the controller to implement comprehensive safety checks for different abnormal scenarios while maintaining clear, manageable control logic for each segment, improving safety without excessive complexity.
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 effectively prevents power consumption and internal component failure by immediately cutting off power during abnormal heating events, ensuring the device operates within target temperature ranges.
Implementation Method 1
an induction coil configured to generate an alternating magnetic field on the basis of power supplied from the battery
Implementation Method 2
heat generated by the alternating magnetic field
Implementation Method 3
a susceptor configured to heat an aerosol generating substrate by using heat generated by the alternating magnetic field
Data Source
AI summary
An aerosol generating device includes a battery, an induction coil configured to generate an alternating magnetic field on the basis of power supplied from the battery, a susceptor configured to heat an aerosol generating substrate by using heat generated by the alternating magnetic field, a temperature sensor arranged adjacent to the susceptor and configured to output a temperature sensing value as detection information, and a controller configured to cut off power supplied to the induction coil, according to a first abnormal heating condition and a second abnormal heating condition, which are based on the detection information of the temperature sensor.