Detachable E-Cigarette Assembly for Easy Atomizer Replacement

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Solution Overview

Problem

Conventional electronic cigarettes face difficulty in separately replacing the atomization and battery assemblies due to their fixed connection, limiting flexibility and usability.

Innovation Solution

The electronic cigarette design includes a detachable atomization assembly connected to a battery assembly via a buckle mechanism, featuring a second spring in the buckle's cavity for easy separation, along with a larger e-liquid container and environmentally friendly filler plug, and a high-capacity battery for enhanced performance.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Stability of the object's composition

If the atomization assembly and battery assembly are fixedly connected, then the structural stability is improved, but the ease of replacement deteriorates

Engineering Contradiction:
Improvestructural stabilityVSAvoidease of replacement
Core Design Contradiction:
Stability of the object's compositionVSEase of operation

Solution Approach 1:

The electronic cigarette is divided into two separable modules: an atomization assembly and a battery assembly. Each module can be independently replaced, maintained, or upgraded without affecting the other, resolving the contradiction between structural stability and ease of replacement.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The connection between the atomization assembly and battery assembly is made dynamic through a detachable buckle mechanism. This allows the structure to transition between a stable connected state during use and a separable state for replacement, accommodating both requirements.

Inventive Principle:
Principle #15Dynamics

2Strength

If the atomization assembly and battery assembly are fixedly connected, then the structural integrity is improved, but the ease of repair deteriorates

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

Solution Approach 1:

By segmenting the device into replaceable modules, repairs can be performed by simply detaching and replacing the faulty assembly rather than disassembling the entire device, significantly improving ease of repair while maintaining structural integrity during normal operation.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The dynamic detachable connection allows the structure to be intact and stable during use, yet easily separable for repair purposes, resolving the contradiction between maintaining structural integrity and enabling easy repair.

Inventive Principle:
Principle #15Dynamics

3Duration of action of moving object

If the e-liquid container volume is increased, then the usage time is extended, but the device volume increases

Engineering Contradiction:
Improveusage timeVSAvoiddevice volume
Core Design Contradiction:
Duration of action of moving objectVSVolume of moving object

Solution Approach 1:

The e-liquid container is designed as a separate replaceable module within the atomization assembly. Users can carry multiple containers or opt for larger capacity versions without increasing the base device volume, as only the container portion needs to be larger.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The atomization assembly with the e-liquid container is nested within or alongside the battery assembly, allowing the overall device to accommodate larger container volumes while maintaining a compact form factor through efficient spatial arrangement.

Inventive Principle:
Principle #7Nested doll (Nesting)

Data Source

PatentEP3799731B1Electronic cigarette
Publication Date: 2026.05.13 LIU TUANFANG
  • EP3799731B1 patent drawingFigure 1
  • EP3799731B1 patent drawingFigure 2
  • EP3799731B1 patent drawingFigure 3

AI summary

An electronic cigarette, including: an atomization assembly and a battery assembly. The atomization assembly is disposed on the battery assembly. The atomization assembly includes a first cover; a silicone sleeve; a mouthpiece; a first silicone ring; a steel bushing; a second cover; a second silicone ring; an e-liquid container; a third silicone ring; a filler plug; an atomization unit. The battery assembly includes a positive joint; a first spring; a first insulation ring; a negative pole; a first fixed part; a second insulation ring; a seal ring; a second fixed part; a fastener; a control plate; a position limiter; a battery; a support; a power button; a housing; a second spring; and a buckle. The first cover includes a cavity and the silicone sleeve is disposed in the cavity. The first cover is removably disposed on the mouthpiece. The first silicone ring is sheathed on the mouthpiece.