Hand-held Vaporizer Thermal Management via Air Pathway Segmentation

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Solution Overview

Problem

Hand-held vaporizers face challenges in energy efficiency, as the energy required to produce vapor temperature impacts usage time, and the high temperatures of the heating element and vaporized active ingredients can make the device uncomfortable and risky to use, with fluid resistance also affecting user experience.

Innovation Solution

The vaporizer design incorporates a heatsink to reduce the temperature of heated air before inhalation, an insulating air pathway to conserve energy, and a unique air flow configuration that warms incoming air to reduce heating element energy demand, along with a mouthpiece design that adjusts fluid flow resistance.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If the heating element operates at high temperatures (180-360°C) to extract active ingredients, then vaporization efficiency is improved, but the device becomes uncomfortable and risky to hold due to heat transfer to external surfaces

Engineering Contradiction:

Improvevaporization efficiencyVSAvoidheat transfer to external surfaces

Core Design Contradiction:

ProductivityVSObject-affected harmful factors

Solution Approach 1:

The air pathway is divided into separate zones: a first air pathway for heating air to vaporization temperature, and a second air pathway for delivering cooled vapor to the user. This segmentation allows the heating zone to operate at high temperature while the delivery zone remains cool, resolving the contradiction between vaporization efficiency and user comfort.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

Air acts as an intermediary medium that is heated in a first pathway, passes through the material to extract vapor, then travels through a second pathway to the user. This intermediary air flow allows thermal separation between the heating element and the user's mouth, enabling high-temperature vaporization without transferring harmful heat to external surfaces.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Ease of operation

If a heatsink is added to cool the vapor before inhalation, then user comfort is improved, but device complexity increases

Engineering Contradiction:

Improveuser comfortVSAvoiddevice complexity

Core Design Contradiction:

Ease of operationVSDevice complexity

Solution Approach 1:

The heatsink function is merged with the existing air pathway structure. The second air pathway itself serves as the cooling channel, eliminating the need for a separate heatsink component. This integration achieves vapor cooling while minimizing additional device complexity.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The air pathway serves multiple functions: it heats air in the first pathway, transports vapor in the second pathway, and acts as a heatsink to cool the vapor. This multi-functionality reduces the need for additional components, achieving user comfort without significantly increasing device complexity.

Inventive Principle:

Principle #6Universality (Multi-functionality)

3Use of energy by moving object

If the first air pathway is configured to bring air into thermal contact with components, then energy efficiency is improved, but the components may become hotter

Engineering Contradiction:

Improveenergy efficiencyVSAvoidcomponent temperature

Core Design Contradiction:

Use of energy by moving objectVSTemperature

Solution Approach 1:

Air flow through the first air pathway occurs periodically during user inhalation, creating periodic thermal contact between the air and components. This periodic action allows heat transfer to occur only when needed (during use), improving energy efficiency while preventing continuous heating of components.

Inventive Principle:

Principle #19Periodic action

Solution Approach 2:

The first air pathway maintains continuous thermal contact with components during the vaporization process, ensuring that heat from the heating element is continuously transferred to the air for efficient vaporization. This continuous useful action maximizes energy efficiency during active use.

Inventive Principle:

Principle #20Continuity of useful 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 design extends usage time with the same power source, enhances user comfort by reducing temperature, and improves the overall vaping experience through efficient energy use and adjustable airflow.

Implementation Method 1

a heatsink provided in the air pathway between the receptacle and the mouthpiece... configured to absorb heat from the air carried from the receptacle to the mouthpiece

Methodology Applied

Scientific EffectHeat exchange: Heat Exchanger

Implementation Method 2

a heating element configured to heat air from the first air pathway to produce heated air

Methodology Applied

Scientific EffectHeating: Heating

Implementation Method 3

an insulating air pathway to conserve energy

Methodology Applied

Scientific EffectThermal insulation: Thermal Insulation

Data Source

PatentUS11426545B2Hand-held vaporizer device

Publication Date: 2022.08.30 CS CAPITAL LTD

AI summary

A vaporizer device is described in which a first air pathway extends from an inlet to a heating element. The heating element is configured to heat air from the first air pathway to produce heated air. A second air pathway extends from the heating element to a mouthpiece and is configured to carry the heated air. The first air pathway is configured to bring the air into thermal contact with at least one component in the second air pathway which absorbs heat from the heated air to heat air in the first air pathway and thereby reduce the energy needed to heat the air.