Two-Stage Heating System for Inhaler Vaporization Efficiency

Solution Overview

Problem

Inhaler devices such as e-cigarettes and personal vaporizers face challenges in efficient aerosol and vapor generation, energy consumption, and battery life, necessitating improved heating systems for effective vaporization of liquids or gels.

Innovation Solution

A two-stage heating system comprising a first heating zone for preheating and a second heating zone for full vaporization, where the preheated substance undergoes thermal expansion and is driven under pressure to the second zone for efficient vaporization, utilizing distinct but fluidly connected heating cavities and electrical resistance heating elements powered by a battery.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Use of energy by moving object

If a single heating zone is used for vaporization, then the device structure is simple, but the energy consumption is high and vaporization efficiency is low

Engineering Contradiction:

Improveenergy consumptionVSAvoidheating system structure

Core Design Contradiction:

Use of energy by moving objectVSDevice complexity

Solution Approach 1:

The heating system is divided into two distinct heating zones: a first heating zone for preheating the liquid and a second heating zone for complete vaporization. This segmentation allows each zone to perform a specific function at optimized temperatures, improving overall energy efficiency while maintaining manageable structural complexity

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The first heating zone performs preliminary heating of the liquid before it reaches the second heating zone. This preheating action reduces the energy burden on the second zone, as the liquid already arrives at an elevated temperature, thereby reducing total energy consumption

Inventive Principle:

Principle #10Preliminary action

2Productivity

If a single heating zone is used for vaporization, then the device structure is simple, but the vapor generation efficiency is low

Engineering Contradiction:

Improvevapor generation efficiencyVSAvoidheating system structure

Core Design Contradiction:

ProductivityVSDevice complexity

Solution Approach 1:

The heating system is divided into two distinct heating zones: a first heating zone for preheating the liquid and a second heating zone for complete vaporization. This segmentation allows each zone to perform a specific function at optimized temperatures, improving overall energy efficiency while maintaining manageable structural complexity

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The first heating zone performs preliminary heating of the liquid before it reaches the second heating zone. This preheating action reduces the energy burden on the second zone, as the liquid already arrives at an elevated temperature, thereby reducing total energy consumption

Inventive Principle:

Principle #10Preliminary action

3Speed

If high temperature heating is applied directly to the substance, then vaporization occurs quickly, but energy consumption increases and battery life decreases

Engineering Contradiction:

Improvevaporization speedVSAvoidbattery life

Core Design Contradiction:

SpeedVSDuration of action of moving object

Solution Approach 1:

The first heating zone performs preliminary heating of the liquid before it reaches the second heating zone. This preheating action reduces the energy burden on the second zone, as the liquid already arrives at an elevated temperature, thereby reducing total energy consumption

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The heating system operates in a staged manner, with the first heating zone activating initially to preheat the liquid, followed by the second heating zone activating to complete vaporization. This periodic/staged activation optimizes energy usage patterns

Inventive Principle:

Principle #19Periodic action

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 enhances aerosol and vapor generation efficiency, reduces energy consumption, and prolongs battery life by optimizing the heating process through preheating and subsequent full vaporization in the second zone.

Implementation Method 1

The thermal expansion may generate a localized pressure increase in the first heating zone, which then forces or drives the substance under pressure towards the second heating zone

Methodology Applied

Scientific EffectThermal expansion: Thermal Expansion

Implementation Method 2

the degree of heating required to carry out full vaporization of the substance can be achieved both quickly and efficiently

Methodology Applied

Scientific EffectVaporization: Evaporation

Implementation Method 3

at least one second heating element is provided to heat the substance in the second heating zone

Methodology Applied

Scientific EffectJoule heating: Joule Heating

Data Source

PatentUS20240407054A1Heating System And Method Of Heating For An Inhaler Device

Publication Date: 2024.12.05 JT INTERNATIONAL SA

AI summary

A heating system for an inhaler device, such as an e-cigarette or a personal vaporizer, for generating an aerosol and/or a vapor from a substance to be heated, especially a liquid or gel, the heating system including: a first heating zone configured to receive the substance to be heated from a supply reservoir, wherein at least one first heating element is provided to pre-heat the substance in the first heating zone; and a second heating zone configured to receive the preheated substance from the first heating zone, wherein at least one second heating element is provided to heat the substance in the second heating zone.