Aerosol Heater Control With Internal Consumable Temperature Sensing
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Solution Overview
Problem
Existing aerosol-generating apparatuses face challenges in efficiently controlling the temperature of consumables for optimal aerosol production, leading to uneven heating and potential overheating, which affects user experience and consumable longevity.
Innovation Solution
The apparatus incorporates an outside-in heater with a temperature detector inside the consumable to measure and control temperature accurately, combined with an inside-out heater for uniform heating, ensuring precise temperature regulation and efficient aerosolization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If an outside-in heater is used to heat the consumable, then the heating efficiency is improved, but the temperature control precision deteriorates due to difficulty in measuring internal temperature
Solution Approach 1:
The temperature detector is nested inside the consumable (rod penetrates the consumable to measure internal temperature), allowing the outside-in heater to heat the consumable from the outside while the internal detector accurately monitors the temperature, thus maintaining both heating efficiency and temperature control precision
Solution Approach 2:
The rod acts as an intermediary element that penetrates the consumable to provide thermal contact between the outside-in heater and the consumable interior, enabling efficient heat transfer while allowing temperature measurement without compromising the heating effectiveness
2Device complexity
If temperature is measured externally to the consumable, then the device complexity is reduced, but the temperature measurement reliability deteriorates
Solution Approach 1:
The temperature detector is placed inside the consumable rather than externally, providing direct measurement of the actual temperature where aerosolization occurs, thereby improving measurement reliability while the overall device complexity remains manageable through integrated design
3Device complexity
If heating is applied without internal temperature feedback, then the device complexity is reduced, but the temperature control accuracy deteriorates leading to overheating
Solution Approach 1:
The temperature detector inside the consumable provides real-time feedback on the internal temperature to the control system, which adjusts the outside-in heater power accordingly, ensuring accurate temperature control and preventing overheating while maintaining reasonable device 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 approach allows for uniform heating and efficient aerosolization of the aerosol, extending consumable life and enhancing user experience.
Implementation Method 1
applying heat to an outer surface of the consumable by powering an outside-in heater arranged outside the consumable
Implementation Method 2
measuring a temperature inside the consumable using a temperature detector arranged inside the consumable
Implementation Method 3
The arrangement of the temperature sensor inside the consumable provides a more reliable result of the temperature inside the consumable compared with scenarios in which the temperature is measured external to the consumable
Data Source
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AI summary
This invention refers to an aerosol-generating apparatus configured to generate an aerosol from a consumable (70), comprising a device body (50) including a cavity (64) configured to for insertion of the consumable (70) thereinto, an aerosol-generating unit (4) configured to heat the consumable (70) when inserted into the cavity (64), a rod (66) which protrudes into the cavity (64), the rod (66) being configured to penetrate the consumable (70) when the consumable (70) is inserted into the cavity (64), and electrical circuitry (56) coupled to the aerosol-generating unit (4), wherein the rod (66) includes a temperature detector (68) coupled to the electrical circuitry (56) and configured to measure a temperature inside the consumable (70) when inserted into the cavity (64), wherein the aerosol-generating unit (4) includes an outside-in heater (54b) which is arranged in or on a wall of the cavity (64) for heating the consumable (70) when inserted into the cavity (64)penetrated by the rod (66), and wherein the electrical circuitry (56) is configured to control the outside-in heater (54b) based on the temperature measured by the temperature detector (68).