Infrared Heating Tube Structure for Precise Aerosol Atomization
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Solution Overview
Problem
Existing aerosol generating devices face issues with overheating of the heating element, which affects the puffing taste due to direct or indirect heat conduction, necessitating precise temperature control above 400°C.
Innovation Solution
A heating structure with a heating element that radiates infrared light waves, spaced apart from the tube wall, and a temperature measurement unit on the tube wall for accurate temperature measurement, allowing the heating element to reach up to 1300°C while maintaining the tube surface temperature below 350°C.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the heating element operates at high temperature above 400°C, then the atomization efficiency is improved, but the aerosol generating substrate may be overheated affecting puffing taste
Solution Approach 1:
The patent introduces an infrared-transparent tube body as an intermediary between the heating element and the aerosol generating substrate. The heating element operates at high temperature (above 400°C) to provide efficient atomization, while the tube body transmits infrared radiation to heat the substrate indirectly, preventing direct contact overheating and protecting puffing taste.
2Device complexity
If the heating element is placed close to the tube wall for compact design, then the device structure is simplified, but temperature control precision deteriorates
Solution Approach 1:
The infrared-transparent tube body serves as a mediator that allows the heating element to be positioned close to the tube wall for compact design while maintaining temperature control precision. The tube transmits infrared radiation uniformly, ensuring precise heating control despite the close proximity arrangement.
3Power
If the heating element directly contacts the tube wall for heat transfer, then heat transfer efficiency is improved, but temperature measurement accuracy deteriorates
Solution Approach 1:
The patent uses the infrared-transparent tube body as an intermediary that enables both efficient heat transfer and accurate temperature measurement. The tube transmits infrared radiation from the heating element for efficient heating while allowing the temperature measurement unit to accurately detect the temperature of the aerosol generating substrate without interference from the heating element's high temperature.
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
Enables precise atomization of the aerosol generating substrate at 300°C-350°C, improving puffing taste and reducing preheating time, with fast temperature measurement and a simple structure.
Implementation Method 1
a heating element configured to radiate infrared light waves in a power-on state
Implementation Method 2
the temperature measurement unit is arranged on the tube wall of the tube body
Data Source
AI summary
A heating structure includes: a heating element for radiating infrared light waves in a power-on state; a tube body for the infrared light waves to pass through; and a temperature measurement unit for temperature measurement. The heating element is at least partially spaced apart from a tube wall of the tube body. The heating element includes a heating portion and a conductive portion connected to one end of the heating portion. The temperature measurement unit is arranged on the tube wall of the tube body.