Flavor Generator Sensor Layout Against Airflow Cooling Error

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Solution Overview

Problem

Existing flavor generation devices, such as electronic cigarettes, face accuracy issues in temperature detection due to the cooling effect of airflow on temperature sensors, which can lower the accuracy of temperature measurement for the power supply.

Innovation Solution

The flavor generation device incorporates a temperature sensor arranged at a position other than where the cooling effect of airflow is highest, ensuring minimal impact from airflow and maintaining accurate temperature detection of the power supply.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If the temperature sensor is arranged in the channel where airflow passes, then the temperature detection is convenient, but the cooling effect of airflow reduces the accuracy of temperature measurement

Engineering Contradiction:

Improvetemperature detection convenienceVSAvoidtemperature measurement accuracy

Core Design Contradiction:

Ease of operationVSMeasurement precision

Solution Approach 1:

The temperature sensor is extracted from the airflow channel and repositioned in the housing to eliminate the cooling effect of passing airflow on the sensor, thereby maintaining measurement accuracy while still enabling temperature monitoring of the power supply

Inventive Principle:

Principle #2Taking out (Extraction)

2Measurement precision

If the temperature sensor is arranged close to the power supply, then the temperature detection of power supply is accurate, but the cooling effect of airflow on sensor increases

Engineering Contradiction:

Improvepower supply temperature detection accuracyVSAvoidcooling effect of airflow on sensor

Core Design Contradiction:

Measurement precisionVSObject-affected harmful factors

Solution Approach 1:

The housing structure serves as an intermediary medium that thermally connects the power supply to the temperature sensor without requiring direct placement in the airflow path, thus transmitting temperature information while protecting the sensor from airflow cooling effects

Inventive Principle:

Principle #24Intermediary (Mediator)

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 arrangement effectively suppresses the lowering of accuracy in temperature detection, allowing for precise monitoring and protection of the power supply 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

Methodology Applied

Scientific EffectTemperature detection:

Implementation Method 2

a cooling effect of the airflow

Methodology Applied

Scientific EffectCooling effect of airflow: Convection

Data Source

PatentUS20250031768A1Flavor generation device with temperature sensor

Publication Date: 2025.01.30 JAPAN TOBACCO INC

AI summary

A flavor generation device. The flavor generation device includes an atomizer having a channel; a power supply; a temperature sensor configured to output a detection value of a temperature of the power supply; a control device configured to control the atomizer; a first member configured to at least partially envelop the temperature sensor and the control device; and a case arranged outside of the power supply, the first member, and the atomizer. An air layer is arranged between the first member and the case.