Infrared Tube Heating Structure for Precise Aerosol Temperature Sensing
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Solution Overview
Problem
Existing heating methods in heat-not-burning atomization systems face challenges with non-uniform temperature distribution and overheating of the heating element, affecting the vaping experience due to direct heat conduction through solid materials, which requires precise temperature measurement and control.
Innovation Solution
A heating structure with a heating element generating infrared light, a tube body allowing light penetration, and a thermal resistance temperature measuring element with first and second temperature measuring segments forming a loop, where the first segment has higher resistance than the second, accurately representing temperature zones on the peripheral surface of the tube body.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If a heating element directly conducts heat to the aerosol generating substrate through solid material, then heat transfer efficiency is improved, but temperature control precision deteriorates due to non-uniform temperature distribution and overheating risks
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 generates infrared light which penetrates through the tube body to heat the substrate, avoiding direct solid-to-solid heat conduction. This mediator enables precise temperature control while maintaining efficient energy transfer, as the infrared radiation can be precisely controlled and the tube body allows selective transmission of heat energy.
Solution Approach 2:
The patent replaces the traditional mechanical/thermal conduction heating system with an infrared radiation-based heating system. Instead of relying on direct contact heat transfer through solid materials, the system uses infrared light generation and transmission to achieve heating, thereby improving temperature control precision while maintaining energy efficiency.
2Measurement precision
If temperature measuring elements are added to monitor heating element temperature, then temperature control precision is improved, but device complexity increases
Solution Approach 1:
The tube body serves multiple functions: it acts as a structural support, an infrared transmission window, and a mounting substrate for the temperature measuring elements. By integrating the temperature measurement function into the existing tube body structure rather than adding separate complex measurement systems, the patent achieves precise temperature monitoring while minimizing increases in device complexity.
3Productivity
If the heating element operates at high temperature to improve atomization efficiency, then productivity is improved, but harmful factors increase due to overheating and degraded vaping experience
Solution Approach 1:
The patent implements a feedback control system using temperature measuring elements that continuously monitor the temperature of the heating element and aerosol generating substrate. The measured temperature information is fed back to control the heating element's operation, ensuring it maintains optimal atomization temperature without excessive overheating. This feedback mechanism enables high-temperature operation for efficient atomization while preventing harmful overheating effects.
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
The solution provides precise temperature monitoring, enabling accurate temperature representation of specific zones, thereby improving the vaping experience by maintaining optimal atomization temperatures and reducing overheating risks.
Implementation Method 1
a heating element configured to generate infrared light in a power-on state
Implementation Method 2
the heating element generates infrared light in a power-on state
Implementation Method 3
a tube body configured to allow the infrared light to penetrate through
Implementation Method 4
a thermal resistance temperature measuring element, wherein the heating element is at least partially accommodated in the tube body
Data Source
AI summary
A heating structure includes: a heating element for generating infrared light in a power-on state; a tube body that allows the infrared light to penetrate through; and a thermal resistance temperature measuring element. The heating element is at least partially accommodated in the tube body. The thermal resistance temperature measuring element comprises a first temperature measuring segment and a second temperature measuring segment that are provided on a peripheral surface of the tube body, the first temperature measuring segment and the second temperature measuring segment being connected so as to form a temperature measuring loop. The peripheral surface of the tube body includes a plurality of temperature zones along an axial direction of the tube body. A resistance of the first temperature measuring segment is greater than a resistance of the second temperature measuring segment. The first temperature measuring segment is provided corresponding to one temperature zone.