Composite Liquid Guide Cotton for Burn-Resistant Vaporization

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Solution Overview

Problem

Existing liquid guide cotton in vaporization devices is prone to burning due to insufficient temperature resistance, leading to dry vaporized gas and insufficient fragrance release, with potential dry burning and burning smell issues.

Innovation Solution

A composite liquid guide cotton is constructed with a heat-resistant layer, rapid liquid guide layer, and isolation layers stacked in sequence, featuring high-temperature resistant materials and enhanced liquid absorption and guiding capabilities.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Device complexity

If a single-layer liquid guide cotton is used, then the device structure is simple, but the liquid guide rate is slow and temperature resistance is insufficient

Engineering Contradiction:
Improvestructure complexityVSAvoidliquid guide rate
Core Design Contradiction:
Device complexityVSSpeed

Solution Approach 1:

The liquid guide cotton is segmented into multiple functional layers: a rapid liquid guide layer (wood pulp cotton) for fast liquid transport, a heat resistant layer (linen cotton) for high-temperature resistance, and isolation layers (non-woven fabric) for liquid storage and odor isolation. This segmentation allows each layer to specialize in one function, resolving the contradiction between structural simplicity and performance requirements.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent uses composite materials by combining different types of cotton and fabric layers, each with distinct properties. The wood pulp cotton provides rapid liquid guidance, linen cotton provides heat resistance, and non-woven fabric provides liquid storage. This composite structure achieves both high liquid guide rate and temperature resistance without excessive complexity.

Inventive Principle:
Principle #40Composite materials

2Device complexity

If a single-layer liquid guide cotton is used, then the device structure is simple, but temperature resistance is insufficient leading to burning

Engineering Contradiction:
Improvestructure complexityVSAvoidtemperature resistance
Core Design Contradiction:
Device complexityVSReliability

Solution Approach 1:

The liquid guide cotton is segmented into multiple functional layers: a rapid liquid guide layer (wood pulp cotton) for fast liquid transport, a heat resistant layer (linen cotton) for high-temperature resistance, and isolation layers (non-woven fabric) for liquid storage and odor isolation. This segmentation allows each layer to specialize in one function, resolving the contradiction between structural simplicity and performance requirements.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent uses composite materials by combining different types of cotton and fabric layers, each with distinct properties. The wood pulp cotton provides rapid liquid guidance, linen cotton provides heat resistance, and non-woven fabric provides liquid storage. This composite structure achieves both high liquid guide rate and temperature resistance without excessive complexity.

Inventive Principle:
Principle #40Composite materials

3Device complexity

If liquid absorption and conduction take time, then the liquid guide cotton can be simple, but the vaporized gas becomes dry and light with insufficient fragrance release

Engineering Contradiction:
Improveliquid guide cotton structureVSAvoidvapor quality and fragrance release
Core Design Contradiction:
Device complexityVSQuantity of substance

Solution Approach 1:

The liquid guide cotton is segmented into multiple functional layers: a rapid liquid guide layer (wood pulp cotton) for fast liquid transport, a heat resistant layer (linen cotton) for high-temperature resistance, and isolation layers (non-woven fabric) for liquid storage and odor isolation. This segmentation allows each layer to specialize in one function, resolving the contradiction between structural simplicity and performance requirements.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The isolation layers are designed with high liquid storage capacity to preliminarily store vaporization liquid before it reaches the heating element. This preliminary storage ensures that liquid is readily available for immediate vaporization, preventing dry burning and ensuring sufficient fragrance release without requiring a complex liquid delivery system.

Inventive Principle:
Principle #10Preliminary 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

The composite liquid guide cotton prevents burning, speeds up liquid absorption and guiding, and improves vapor quality, enhancing user experience by reducing dryness and improving fragrance release.

Implementation Method 1

The heat resistant layer is configured to contact a heating body and is made of a high-temperature resistant material

Methodology Applied
Scientific EffectThermal conduction: Conduction (thermal)

Implementation Method 2

the heating member heats the vaporization liquid absorbed by the liquid guide cotton after being powered on

Methodology Applied
Scientific EffectEvaporation: Evaporation

Implementation Method 3

the liquid guide rate of the rapid liquid guide layer is higher than that of the first isolation layer and the second isolation layer

Methodology Applied
Scientific EffectCapillary action: Capillary Action

Implementation Method 4

both the liquid storage capacity of the first isolation layer and the liquid storage capacity of the second isolation layer are higher than that of the rapid liquid guide layer

Methodology Applied
Scientific EffectAbsorption: Absorption (physical)

Data Source

PatentEP4197357B1Composite liquid guide cotton, heating assembly, vaporizer, and electronic vaporization device
Publication Date: 2025.09.17 SHENZHEN SMOORE TECH LTD
  • EP4197357B1 patent drawingFigure 1
  • EP4197357B1 patent drawingFigure 2
  • EP4197357B1 patent drawingFigure 3

AI summary

The disclosure relates to a composite liquid guide cotton, a heating assembly, a vaporizer and an electronic vaporization device. The composite liquid guide cotton includes at least one heat resistant layer, at least one first isolation layer, at least one rapid liquid guide layer and at least one second isolation layer that are stacked in sequence. The heat resistant layer is configured to contact a heating body and is made of a high-temperature resistant material, and the liquid guide rate of the rapid liquid guide layer is higher than that of the first isolation layer and the second isolation layer. The heat resistant layer in contact with the heating body is made of a high-temperature resistant material, which can prevent burning smell when heated; and the rapid liquid guide layer located at the middle layer has a higher liquid guide rate, which can speed up the liquid absorption and guiding of the composite liquid guide cotton, and alleviate the dryness and lightness of the vaporized gas and insufficient fragrance release, thus improving the user experience.