Detachable Mouthpiece and Side-Refill E-Cigarette Design

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Solution Overview

Problem

Existing electronic cigarettes face difficulties in replacing the mouthpiece assembly and loading e-liquid due to their non-detachable design, which complicates maintenance and refilling.

Innovation Solution

The electronic cigarette design features a detachable mouthpiece subassembly and an e-liquid charging mechanism accessible from the side wall, allowing for easy replacement and loading of e-liquid, with a vapor adjusting ring that controls vapor output by threading onto the base subassembly.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Strength

If the mouthpiece assembly is non-detachably connected to the e-liquid charging subassembly, then the structural integrity is improved, but the ease of repair and ease of operation deteriorate

Engineering Contradiction:
Improvestructural integrityVSAvoidease of replacement
Core Design Contradiction:
StrengthVSEase of repair

Solution Approach 1:

The electronic cigarette is divided into separable modules: the mouthpiece assembly can be detached from the e-liquid charging subassembly, and the atomizing subassembly can be separated from the base subassembly. This segmentation allows individual components to be replaced or maintained independently while preserving overall structural integrity during use.

Inventive Principle:
Principle #1Segmentation

2Device complexity

If the mouthpiece assembly is non-detachably connected, then the device complexity is reduced, but the ease of operation deteriorates

Engineering Contradiction:
Improveconnection structureVSAvoidease of refilling
Core Design Contradiction:
Device complexityVSEase of operation

Solution Approach 1:

The device is segmented into removable modules that connect through simple interfaces. The mouthpiece assembly detaches from the e-liquid charging subassembly, and the atomizing subassembly separates from the base, enabling easy refilling and maintenance without requiring complex disassembly procedures.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The e-liquid charging member can be extracted from the e-liquid charging subassembly through the orifice in the sleeve ring, allowing users to refill e-liquid directly without disassembling the entire device. This extraction mechanism simplifies the refilling operation while maintaining a relatively simple overall structure.

Inventive Principle:
Principle #2Taking out (Extraction)

3Device complexity

If the e-liquid charging member is integrated into the body, then the device complexity is reduced, but the ease of operation deteriorates

Engineering Contradiction:
Improvecharging mechanismVSAvoidease of loading e-liquid
Core Design Contradiction:
Device complexityVSEase of operation

Solution Approach 1:

The e-liquid charging member is designed to be extractable from the e-liquid charging subassembly through an orifice in the sleeve ring. This allows the charging member to be removed and refilled independently, simplifying the e-liquid loading process while keeping the charging mechanism itself relatively simple in structure.

Inventive Principle:
Principle #2Taking out (Extraction)

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 facilitates easy maintenance and refilling of e-liquid, enhances user convenience, and allows for adjustable vapor output, improving the overall usability and functionality of the electronic cigarette.

Implementation Method 1

the heating wire is wrapped by the second cotton and disposed in the fixed ring

Methodology Applied
Scientific EffectHeating: Heating

Implementation Method 2

the first cotton wraps the fixed ring; the first cotton and the fixed ring are inserted in the limit cover

Methodology Applied
Scientific EffectCapillary action: Capillary Action

Data Source

PatentEP3571939B1Electronic cigarette
Publication Date: 2023.08.23 LIU TUANFANG
  • EP3571939B1 patent drawingFigure 1
  • EP3571939B1 patent drawingFigure 2
  • EP3571939B1 patent drawingFigure 3

AI summary

An electronic cigarette including a mouthpiece subassembly, an e-liquid charging subassembly, an atomizing subassembly, and a base subassembly. The mouthpiece subassembly is mounted on the e-liquid charging subassembly. The atomizing subassembly is screwed upon the base subassembly. The base subassembly is connected to the e-liquid charging subassembly. The mouthpiece subassembly includes a cigarette holder (1) and a first seal ring (2). The first seal ring is coupled to the cigarette holder. The e-liquid charging subassembly includes an e-liquid charging member (3), a second seal ring (4), a sleeve ring (5), a third seal ring (6), and a glass tube (7). The second seal ring is disposed on the sleeve ring. The third seal ring is disposed in the bottom of the sleeve ring. The sleeve ring is embedded in the e-liquid charging member, the glass tube is connected to one end of the sleeve ring.