Arc-Electrode Heating Chamber for Faster Aerosol Substrate Warm-Up
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Solution Overview
Problem
Existing aerosol generation devices require prolonged waiting times for the aerosol substrate to reach the required temperature for aerosol generation, and there is a need for improved localized heating methods to enhance user convenience and efficiency.
Innovation Solution
The use of arc electrodes arranged on the heating chamber walls to form a spark gap, which provides rapid and localized heating, with a controlled breakdown voltage to ensure safety and longevity, and optionally combined with a planar heater for uniform heating.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If conventional heating methods are used to heat the aerosol substrate, then the substrate reaches the required temperature, but the waiting time is prolonged
Solution Approach 1:
The heating chamber wall is segmented to include a dedicated heating zone with heating elements, separating the heating function from the rest of the chamber structure. This allows focused energy delivery to specific areas where aerosol substrate is present, reducing overall heating time while maintaining effective substrate temperature.
Solution Approach 2:
The heating system operates using periodic pulsed heating cycles rather than continuous heating. The heating elements are activated in intervals to rapidly heat the substrate to the required temperature, then allowed to cool slightly, repeating this cycle to maintain optimal temperature while reducing total energy consumption and waiting time.
2Speed
If high power is supplied to heat the substrate rapidly, then heating speed increases, but stress on the power supply increases
Solution Approach 1:
The heating system uses periodic pulsed operation where high power is delivered in controlled intervals rather than continuously. This allows rapid heating during active pulses while providing rest periods that reduce cumulative stress on the power supply system, balancing heating speed with power supply durability.
Solution Approach 2:
The heating system dynamically adjusts power delivery based on real-time temperature feedback from sensors. Power is increased when the substrate temperature is below the target range and reduced or interrupted when the target temperature is approached, optimizing heating speed while preventing excessive power stress on the supply system.
3Productivity
If arc electrodes are used for rapid heating, then localized heating efficiency improves, but safety risks increase due to high breakdown voltage
Solution Approach 1:
The heating chamber wall acts as an intermediary between the arc electrodes and the aerosol substrate. The electrodes generate arcs that heat the wall, which then conducts heat to the substrate indirectly. This intermediate heating approach maintains the efficiency benefits of arc heating while reducing direct exposure to high-voltage arcs, thereby improving safety.
Solution Approach 2:
The hazardous high-voltage arc generation function is extracted and isolated within a dedicated heating zone of the chamber wall, separated from the main substrate heating area. This allows the arc electrodes to operate at high voltage for efficient heating while the rest of the system, including the substrate area, operates at lower, safer voltages through conductive heating from the wall.
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 arc electrodes enable rapid and efficient heating of the aerosol substrate, reducing waiting times and improving user convenience while maintaining safety and extending the device's lifespan.
Implementation Method 1
a pair of arc electrodes arranged on the one or more walls to form a spark gap
Implementation Method 2
the one or more walls are thermally conductive
Data Source
Figure 1
Figure 2~3
Figure 4A~4B
AI summary
A heating chamber for an aerosol generation device, the heating chamber comprising one or more walls adapted to receive an aerosol substrate, the heating chamber further comprising: a pair of arc electrodes arranged on the one or more walls to form a spark gap.5An aerosol generation device comprising: a heating chamber comprising one or more walls adapted to receive an aerosol substrate, and a pair of arc electrodes arranged on the one or more walls to form a spark gap; and a power source connected to the pair of arc electrodes and configured to apply a voltage between the pair of arc electrodes that is greater than a predetermined 10breakdown voltage of the spark gap, in order supply heat to the heating chamber.