Flavor Generation Temperature Sensing Outside Airflow Cooling Zones
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Solution Overview
Problem
Existing flavor generation devices face accuracy issues in temperature detection due to the cooling effect of airflow on temperature sensors, leading to inaccurate detection values or estimation values of the power supply temperature.
Innovation Solution
The temperature sensor is positioned outside the channel where the cooling effect of airflow is highest, allowing it to maintain accuracy by being far from the inlet and power supply, and is arranged in a way that minimizes airflow impact, such as being tilted or orthogonal to airflow vectors, and housed in a structure that reduces heat transfer.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If the temperature sensor is placed inside the channel to directly monitor airflow temperature, then the temperature detection responsiveness is improved, but the detection accuracy deteriorates due to the cooling effect of airflow
Solution Approach 1:
The patent introduces an intermediary approach by placing the temperature sensor outside the channel but using thermal conduction through the channel wall to indirectly measure the temperature. This mediator (channel wall) transfers thermal information from the airflow to the sensor without exposing the sensor directly to the cooling airflow, thus maintaining both responsiveness and accuracy.
Solution Approach 2:
The temperature sensor is extracted from the direct airflow path (taken out of the channel) to eliminate the harmful cooling effect. By positioning the sensor outside the channel while maintaining thermal coupling through the wall, the system removes the sensor from the harmful environment while preserving temperature monitoring capability.
2Area of stationary object
If the temperature sensor is positioned close to the inlet to capture incoming air temperature, then the temperature monitoring coverage is improved, but the detection accuracy worsens due to maximum cooling effect
Solution Approach 1:
The sensor is extracted from the high-cooling-zone (inlet area) and repositioned to an area with minimal cooling effect. This allows the system to maintain broad temperature monitoring coverage through the channel wall conduction while avoiding the region where airflow cooling most severely impacts sensor accuracy.
Solution Approach 2:
The patent applies local quality by selecting a specific location on the channel wall where the cooling effect is minimal. Different regions of the channel wall have different thermal characteristics, and the sensor is placed in the optimal local region that provides accurate temperature representation without the severe cooling effect present at the inlet.
3Temperature
If the temperature sensor is placed near the power supply to monitor heating element temperature, then the thermal coupling is improved, but the detection accuracy deteriorates due to heat interference
Solution Approach 1:
The channel wall serves as an intermediary thermal path between the power supply/heating element and the temperature sensor. This intermediary provides controlled thermal coupling that allows the sensor to monitor heating element temperature without being directly exposed to the intense heat and thermal interference that would occur with direct placement near the power supply.
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 configuration ensures accurate detection and estimation of the power supply temperature, preventing the lowering of accuracy and enhancing the reliability of temperature monitoring within the flavor generation device.
Implementation Method 1
a temperature sensor configured to output one of a detection value or an estimation value of a temperature of the power supply, wherein the temperature sensor is arranged at a position other than a position where a cooling effect of the airflow is highest
Data Source
AI summary
A power supply for a flavor generation device. The power supply includes a first electrical terminal electrically connectable to an atomizer in an attachable/detachable manner, the atomizer including an aerosol source and an electrical load for atomizing the aerosol source; a second electrical terminal that is independent from the first electrical terminal and is configured to electrically connect to a charger; a battery; a pressure sensor; a control device configured to control power fed from the battery to the electrical load upon receipt of a signal from the pressure sensor; and a case forming an outer surface of the power supply. The pressure sensor, the battery, and the first electrical terminal are arranged in this order along a longitudinal direction of the power supply.