Portable Vaporizer Heating Control for Cool Low-Combustion Aerosol

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Solution Overview

Problem

Existing smoking devices produce toxic and carcinogenic by-products, impart a bitter taste, and lack control over heating and combustion of tobacco products, leading to harmful side effects and unpleasant user experience.

Innovation Solution

A device with an electronic heater and temperature regulator that heats a viscous vaporizable material to generate an inhalable aerosol, using a resistive heating element and thermistor for precise temperature control, and aerogel insulation to maintain efficiency and low exposed surface temperature, allowing for the aerosolization of tobacco and botanicals without combustion.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Object-affected harmful factors

If flame or hot gases are used to vaporize tobacco, then vaporization occurs, but toxic and carcinogenic by-products are produced

Engineering Contradiction:

Improvetoxic and carcinogenic by-productsVSAvoidheating temperature

Core Design Contradiction:

Object-affected harmful factorsVSTemperature

Solution Approach 1:

The patent replaces the mechanical/chemical combustion system (flame, hot gases) with an electronic heating system consisting of an electronic heater, temperature regulator, thermistor, and microcontroller. This substitution allows precise temperature control to vaporize tobacco without combustion, eliminating toxic and carcinogenic by-products while maintaining the vaporization function.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent implements precise control of the heating temperature parameter through electronic regulation. By maintaining the temperature within a specific range (below combustion threshold but sufficient for vaporization), the system achieves vaporization without producing harmful by-products. The temperature regulator and thermistor enable dynamic adjustment of this critical parameter.

Inventive Principle:

Principle #35Parameter changes

2Object-affected harmful factors

If high temperature combustion is used, then vaporization is achieved, but bitter and burnt taste is produced

Engineering Contradiction:

Improvebitter and burnt tasteVSAvoidcombustion temperature

Core Design Contradiction:

Object-affected harmful factorsVSTemperature

Solution Approach 1:

The patent controls the temperature parameter to prevent combustion and burnt taste. The electronic heater with temperature regulator maintains optimal vaporization temperature without exceeding the threshold that causes burning. This precise parameter control ensures pleasant taste by avoiding thermal degradation of the vaporizable material.

Inventive Principle:

Principle #35Parameter changes

Solution Approach 2:

The patent employs a feedback control system using a thermistor to monitor temperature and a microcontroller to adjust heating power accordingly. This closed-loop feedback ensures the temperature remains within the optimal range for vaporization without burning, preventing bitter and burnt taste while maintaining consistent vapor quality.

Inventive Principle:

Principle #23Feedback

3Object-affected harmful factors

If aerogel insulation is added to maintain low exposed surface temperature, then safety is improved, but device complexity increases

Engineering Contradiction:

Improveexposed surface temperatureVSAvoidinsulation structure

Core Design Contradiction:

Object-affected harmful factorsVSDevice complexity

Solution Approach 1:

The patent uses aerogel, an advanced composite material with exceptional insulation properties, to thermally isolate the vaporization chamber from the external housing. This high-performance material provides superior thermal protection with minimal thickness, reducing exposed surface temperature to safe levels while adding minimal structural complexity compared to conventional insulation materials.

Inventive Principle:

Principle #40Composite materials

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 device produces a cool and soothing aerosol that reduces harmful by-products and mutagenic compounds, providing a safer and more appealing smoking alternative with precise temperature control and efficient energy use.

Implementation Method 1

A device with an electronic heater and temperature regulator that heats a viscous vaporizable material to generate an inhalable aerosol, using a resistive heating element

Methodology Applied

Scientific EffectResistive heating: Joule Heating

Implementation Method 2

aerogel insulation to maintain efficiency and low exposed surface temperature

Methodology Applied

Scientific EffectThermal insulation: Thermal Insulation

Implementation Method 3

heats a viscous vaporizable material to generate an inhalable aerosol

Methodology Applied

Scientific EffectVaporization: Evaporation

Data Source

PatentUS11904089B2Devices for vaporization of a substance

Publication Date: 2024.02.20 JUUL LABS INC

AI summary

Devices for generating and releasing vapor. In particular, described herein are portable devices for generating a low-temperature inhalable vapor having an elongated tubular body containing a vaporization chamber and a battery-powered heater, a removable mouthpiece covering the vaporization chamber, a display configured to indicate the temperature of the vaporization chamber; a microcontroller configured to regulate the temperature of the vaporization chamber, and a control to select from among a variety of temperature settings.