Stick-Type Inhalation Device Preheating Before Substrate Insertion
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Solution Overview
Problem
Inhalation devices experience reduced convenience in cold environments due to the increased wait time for aerosol generation after substrate insertion, as the heating unit operation is delayed until the substrate is inserted into the accommodating portion.
Innovation Solution
The inhalation device is designed to initiate heating unit operation before the substrate is inserted into the accommodating portion when the temperature is below a predetermined threshold, and to continue operation upon substrate removal after heating termination.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If the heating unit operation is delayed until the substrate is inserted into the accommodating portion, then energy consumption is reduced, but the user's wait time increases in cold environments
Solution Approach 1:
The heating unit is activated in advance before the substrate is inserted into the accommodating portion when the detected temperature is below the predetermined threshold. This preliminary heating action ensures that the heating unit reaches the required temperature faster, thereby reducing the user's wait time for aerosol generation in cold environments.
Solution Approach 2:
The control unit detects the ambient temperature and changes the operating parameters of the heating unit accordingly. When the temperature is below the predetermined threshold, the heating unit is activated earlier and may operate at different power levels to achieve the target temperature efficiently, balancing energy consumption with reduced wait time.
2Ease of operation
If the heating unit is activated in advance before substrate insertion, then the user's wait time is reduced, but energy consumption increases
Solution Approach 1:
The control unit monitors the ambient temperature and adjusts the heating unit's operation parameters based on detected temperature conditions. When the temperature is below the predetermined threshold, the heating unit is activated earlier with adjusted power levels to reach the required temperature efficiently, improving convenience while managing energy consumption.
Solution Approach 2:
The temperature detecting unit provides continuous feedback to the control unit about the ambient temperature conditions. Based on this feedback, the control unit intelligently decides whether to activate the heating unit in advance and at what power level, creating a closed-loop control system that balances convenience improvement with energy consumption management.
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 approach enhances convenience in low temperature environments by reducing the wait time for aerosol generation, improving user experience.
Implementation Method 1
heating unit (also referred to as a 'heating element'), which is an electrical resistance type or inductive heating type heater
Implementation Method 2
causing operation of the heating unit in response to removal of the substrate from the accommodating portion after termination of the operation of heating the substrate
Data Source
Figure 1
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Figure 3
AI summary
An inhalation device (100) that generates an aerosol from a stick-type substrate (150) that has an aerosol source comprising an accommodating portion (140C) that accommodates the stick-type substrate (150), a heating unit (121C) that can heat the stick-type substrate (150) accommodated in the accommodating portion (140C), and an MCU (1) that controls the heating unit (121C). When the temperature of the heating unit (121C) is below a predetermined temperature, the MCU (1) starts operation of the heating unit (121C) before the stick-type substrate (150) is accommodated in the accommodating portion (140C).