Ceramic Vaporization Unit Without Wick for Longer E-Cigarette Life

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Solution Overview

Problem

Electronic cigarettes suffer from reduced lifespan due to fibrous material deterioration and clogging, flavor persistence, and high manufacturing costs and recyclability issues.

Innovation Solution

A vaporization unit comprising a heating element and a porous or non-porous ceramic, devoid of fibrous material, ensuring efficient liquid transfer and extended lifespan, with a removable cartridge design that enhances recyclability and reduces production costs.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Duration of action of moving object

If fibrous material (cotton) is used for fluid transfer, then liquid transfer from reservoir to heating element is achieved, but lifespan is reduced due to burning and clogging

Engineering Contradiction:
Improvevaporizer lifespanVSAvoidfibrous material deterioration
Core Design Contradiction:
Duration of action of moving objectVSReliability

Solution Approach 1:

The patent removes the fibrous material (cotton) from the vaporization system entirely, extracting the problematic component that causes burning and clogging. The fluid transfer function is achieved through capillary channels formed directly in the ceramic substrate, eliminating the need for separate fibrous fluid transfer elements.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The patent employs a ceramic substrate with integrated capillary channels that provide porous-like fluid transfer properties without using traditional fibrous materials. The ceramic structure contains channels that allow liquid to move from the reservoir to the heating element through capillary action, providing reliable fluid transfer without the deterioration issues of cotton.

Inventive Principle:
Principle #31Porous materials

2Adaptability or versatility

If fibrous material is used for fluid transfer, then liquid delivery is achieved, but flavor change is delayed due to liquid retention in fibers

Engineering Contradiction:
Improveflavor change capabilityVSAvoidflavor transition time
Core Design Contradiction:
Adaptability or versatilityVSLoss of time

Solution Approach 1:

The patent removes the fibrous material that retains liquid and delays flavor changes. By eliminating cotton and using direct capillary channels in ceramic, the system allows complete liquid replacement without retention in fibrous structures, enabling immediate flavor transitions when liquid is changed.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The patent replaces the mechanical fibrous absorption system with a capillary channel system in ceramic. This substitution eliminates the liquid retention characteristic of fibers, allowing complete and rapid liquid replacement for immediate flavor changes without the time delay associated with fibrous material saturation.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

3Reliability

If complex arrangement of vaporization unit and liquid reservoir is used, then functional performance is achieved, but manufacturing cost increases and recyclability decreases

Engineering Contradiction:
Improvevaporization functionVSAvoidmanufacturing cost
Core Design Contradiction:
ReliabilityVSEase of manufacture

Solution Approach 1:

The patent merges the fluid transfer function and structural support into a single ceramic component with integrated capillary channels. This consolidation eliminates the need for separate fibrous fluid transfer elements and complex assemblies, simplifying manufacturing while maintaining reliable vaporization function. The ceramic substrate serves multiple functions simultaneously.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The ceramic component with capillary channels serves multiple functions: structural support, fluid transfer, and heating element mounting. This multi-functional design reduces the number of separate components needed, simplifying both manufacturing and recycling processes while maintaining full vaporization functionality.

Inventive Principle:
Principle #6Universality (Multi-functionality)

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 solution extends the lifespan of electronic cigarettes, improves user experience by immediate flavor change, and reduces environmental impact through recyclable components, while lowering manufacturing costs.

Implementation Method 1

Vaporization occurs when the heating element heats the liquid within the fluid transfer element until it turns into vapor

Methodology Applied
Scientific EffectVaporization: Evaporation

Implementation Method 2

a heating element intended to be electrically powered

Methodology Applied
Scientific EffectJoule heating: Joule Heating

Implementation Method 3

the heating element is supplied with liquid by capillary action resulting from the presence of the fibrous fluid transfer element

Methodology Applied
Scientific EffectCapillary action: Capillary Action

Data Source

PatentEP4691287A1Vaporizing unit comprising a ceramic and electronic cigarette with removable cartridge incorporating such a vaporizing unit
Publication Date: 2026.02.11 PARNASSE 26 HOLDING
  • EP4691287A1 patent drawingFigure 1~2
  • EP4691287A1 patent drawingFigure 3~4
  • EP4691287A1 patent drawingFigure 5~8

AI summary

The invention relates primarily to a vaporization unit for an electronic cigarette, characterized in that it comprises a heating element (12a) intended to be electrically powered and a porous (14a) or non-porous ceramic in surface contact with the heating element (12a), the vaporization unit (11a) being devoid of any fibrous material. The invention also relates to an electronic cigarette comprising a fixed body (2) and a cartridge (3) containing the liquid to be vaporized and removably mounted on said fixed body (2), and essentially characterized in that the fixed body (2) comprises a cartridge receiving recess (7), a power supply battery (4), and a vaporization unit (11a) as previously indicated, located in the cartridge receiving recess (7) and comprising a heating element (12) electrically powered by the battery (4) and a fluid transfer element (14).in that the cartridge (3) comprises an air outlet (21) opening onto a suction channel (20) and a liquid reservoir (16) surrounding the suction channel (20), and in that the removable cartridge (3) and the fixed body (2) are configured so that the liquid reservoir (15) is arranged in fluidic connection with the fluid transfer element (14) of the vaporization unit (11) of the fixed body (2) when the cartridge (3) is mounted on the fixed body (3), and so that the suction channel (20) of the cartridge (3) is arranged in fluidic connection with the vaporization unit (11) of the fixed body (2) when the cartridge (3) is mounted on the fixed body (2).