Infrared Aerosol Heater Control for Uniform Substrate Heating

Resolve Bottlenecks,
Find Innovative SolutionsGenerate Solutions

Solution Overview

Problem

Existing aerosol generating devices using conduction heating suffer from temperature inconsistencies and delays, leading to incomplete and non-uniform heating of aerosol generating substrates due to varying temperatures at different distances from the heating element.

Innovation Solution

The device employs a heating element that generates infrared light, with the heating element and housing wall spaced apart, utilizing temperature feedback to adjust power supply through a PID control algorithm, combining conduction and infrared radiation for uniform heating.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Temperature

If conduction heating is used to heat the aerosol generating substrate, then the heating element can transfer heat to the substrate, but temperature differences occur at different distances from the heating element leading to non-uniform heating

Engineering Contradiction:

Improvetemperature uniformityVSAvoidheating uniformity

Core Design Contradiction:

TemperatureVSManufacturing precision

Solution Approach 1:

The patent introduces an infrared transparent window as an intermediary component between the heating element and the aerosol generating substrate. This window allows infrared radiation to pass through while providing a controlled thermal interface, enabling more uniform heat distribution across the substrate surface compared to direct conduction heating.

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent replaces pure conduction heating with infrared radiation heating. The heating element generates infrared light that penetrates the transparent window and directly heats the substrate, eliminating the temperature gradients caused by distance-dependent conduction and achieving more uniform heating across the entire substrate surface.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

2Speed

If conduction heating is used, then heat transfer occurs from the heating element to the substrate, but heating delay occurs due to the conduction process

Engineering Contradiction:

Improveheating speedVSAvoidheating delay

Core Design Contradiction:

SpeedVSLoss of time

Solution Approach 1:

The patent substitutes conduction heating with infrared radiation heating. Infrared radiation travels at the speed of light and transfers energy directly to the substrate without the thermal inertia and delay inherent in conduction processes, significantly reducing heating time and improving heating speed.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

3Productivity

If the heating element is placed close to the substrate for efficient heating, then heating effectiveness improves, but temperature control precision decreases due to hot spots and non-uniform heating

Engineering Contradiction:

Improveheating efficiencyVSAvoidtemperature control precision

Core Design Contradiction:

ProductivityVSMeasurement precision

Solution Approach 1:

The infrared transparent window serves as a mediator that allows the heating element to be positioned efficiently close to the substrate while maintaining temperature control precision. The window distributes the infrared radiation uniformly across the substrate surface, preventing hot spots and enabling both high heating efficiency and precise temperature control.

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent applies local quality by designing the infrared transparent window with specific optical and thermal properties that are optimized for different regions. The window material and structure are selected to ensure uniform infrared transmission across the entire substrate area, maintaining consistent heating quality throughout.

Inventive Principle:

Principle #3Local quality

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 ensures more uniform and stable heating of the aerosol generating substrate by controlling temperature through infrared radiation and conduction, maintaining optimal heating element and housing wall temperatures.

Implementation Method 1

a heating element configured to generate infrared light

Methodology Applied

Scientific EffectInfrared radiation: Infrared Radiation

Implementation Method 2

a housing having a housing wall configured to allow the infrared light to pass through

Methodology Applied

Scientific EffectInfrared transmission: Infrared Radiation

Implementation Method 3

The existing aerosol generating device uses a conduction manner to heat the aerosol generating substrate

Methodology Applied

Scientific EffectThermal conduction: Conduction (thermal)

Data Source

PatentUS20260060307A1Aerosol generating device and temperature control method therefor

Publication Date: 2026.03.05 SMOORE INTERNATIONAL HOLDINGS LIMITED

AI summary

An aerosol generating device includes a heating element for generating infrared light; a housing having a housing wall that allows the infrared light to pass through, the heating element and the housing wall being at least partially spaced apart; a first temperature obtaining unit that obtains the housing wall temperature of the housing wall; a second temperature obtaining unit that obtains the heating element temperature of the heating element; and a control unit that: outputs a target control temperature based on a preset temperature and the housing wall temperature, processes the heating element temperature and the target control temperature using a preset algorithm, and adjusts power supplying of the heating element.