Replaceable Electronic Cigarette Clearomizer for Wick Protection

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Conventional electronic cigarettes suffer from issues such as a non-detachable atomization assembly and a cotton piece that easily burns out, limiting the e-liquid holding capacity and leading to carbonization of the heating wire.

Innovation Solution

The electronic cigarette features a detachable clearomizer with a fiberglass tube and heating wire wrapped in a sleeve, surrounded by a strip of cotton, which enhances e-liquid absorption and prevents heating wire carbonization.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a fixed clearomizer is used, then the device structure is simple, but the atomization assembly cannot be replaced

Engineering Contradiction:
Improvereplaceability of atomization assemblyVSAvoidclearomizer structure
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The atomization assembly is divided into a replaceable clearomizer portion and a fixed battery portion. The clearomizer can be detached and replaced independently, allowing users to replace only the consumable part rather than the entire device. This segmentation resolves the contradiction by enabling replaceability while keeping the battery assembly simple and fixed.

Inventive Principle:
Principle #1Segmentation

2Reliability

If common cotton is used in the atomization assembly, then the manufacturing cost is low, but the cotton cannot hold e-liquid and is easily burned out

Engineering Contradiction:
Improvecotton durability and e-liquid holding capacityVSAvoidmanufacturing complexity
Core Design Contradiction:
ReliabilityVSEase of manufacture

Solution Approach 1:

The patent uses a composite structure consisting of glass fiber tube, heating wire, and cotton arranged in specific layers. The glass fiber tube provides structural support and e-liquid distribution, the heating wire enables heating, and the cotton serves as the wick material. This composite material approach improves reliability by preventing cotton burnout through proper material selection and arrangement, while maintaining ease of manufacture through a straightforward assembly process.

Inventive Principle:
Principle #40Composite materials

3Reliability

If the cotton strip is properly designed to absorb e-liquid, then carbonization of heating wire is prevented, but the manufacturing precision requirements increase

Engineering Contradiction:
Improveheating wire protection from carbonizationVSAvoidcomponent assembly precision
Core Design Contradiction:
ReliabilityVSManufacturing precision

Solution Approach 1:

The glass fiber tube acts as an intermediary component between the e-liquid storage and the heating wire. It distributes e-liquid evenly to the cotton and heating wire, preventing direct contact between excessive e-liquid and the heating wire, thus preventing carbonization. This intermediary structure simplifies the manufacturing process by providing a built-in e-liquid distribution mechanism that reduces the precision requirements for cotton placement.

Inventive Principle:
Principle #24Intermediary (Mediator)

4Productivity

If the heating wire is properly positioned and secured, then the atomization efficiency is improved, but the device complexity increases

Engineering Contradiction:
Improveatomization efficiencyVSAvoidheating module structure
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The heating wire is merged with the glass fiber tube and cotton assembly as an integrated unit. The heating wire is positioned within the glass fiber tube structure, which provides both support and e-liquid distribution. This merging of components improves atomization efficiency by ensuring proper positioning and integration of the heating element with the e-liquid supply system, while avoiding the need for separate complex positioning mechanisms.

Inventive Principle:
Principle #5Merging (Combining)

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 provides a durable and efficient atomization assembly that can be replaced, ensuring effective e-liquid absorption and preventing heating wire carbonization, thereby improving the device's performance and usability.

Implementation Method 1

The atomization assembly comprises a strip of cotton which can fully absorb and hold the e-liquid thereby preventing the heating wire from carbonization under high temperature

Methodology Applied
Scientific EffectCapillary action: Capillary Action

Implementation Method 2

The heating module comprises a fiberglass tube, a heating wire, and a strip of cotton; the heating wire is disposed in the fiberglass tube

Methodology Applied
Scientific EffectJoule heating: Joule Heating

Data Source

PatentEP3884785B1Electronic cigarette
Publication Date: 2025.09.17 LIU TUANFANG
  • EP3884785B1 patent drawingFigure 1
  • EP3884785B1 patent drawingFigure 2
  • EP3884785B1 patent drawingFigure 3

AI summary

An electronic cigarette, including an atomization assembly (A) and a battery assembly (B). The atomization assembly includes a clearomizer. The clearomizer includes a first sealing gasket (2), an e-liquid storage tank (7), a second sealing gasket (8), and a heating module. The first sealing gasket and the second sealing gasket are disposed on two ends of the e-liquid storage tank, respectively. The heating module is disposed in the e-liquid storage tank and between the first sealing gasket and the second sealing gasket.