Electronic Cigarette Liquid Bottle with Integrated Sealing Plug

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Solution Overview

Problem

Existing electronic cigarette liquid bottles that sleeve an atomizing core have a complex structure, leading to increased production costs and time, and they have a small liquid capacity, resulting in short usage time without the ability to add additional liquid.

Innovation Solution

An electronic cigarette liquid bottle with a bottle body, first sealing rubber member, and bracket, featuring separate first and second liquid outlet holes, a movably arranged sealing rubber plug, and a pulling portion for sealing and opening the outlets, allowing easy assembly and refilling.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Duration of action of moving object

If an electronic cigarette liquid bottle sleeves an atomizing core and is configured to supply electronic cigarette liquid into the atomizing core, then the liquid capacity is increased and usage time is extended, but the structure becomes complex, production cost increases, and production time is prolonged

Engineering Contradiction:
Improveusage timeVSAvoidstructure complexity
Core Design Contradiction:
Duration of action of moving objectVSDevice complexity

Solution Approach 1:

The sealing rubber plug is integrated with the first sealing rubber member through injection molding, merging two components into one. This reduces the number of parts, simplifies the structure, and eliminates assembly steps while maintaining the sealing function and liquid storage capacity that extend usage time

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The first sealing rubber member serves multiple functions: it seals the first opening of the bottle body, provides a mounting structure for the sealing rubber plug, and acts as a structural support element. This multi-functionality reduces the need for separate components, simplifying the overall structure while maintaining the extended liquid capacity

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

2Duration of action of moving object

If an electronic cigarette liquid bottle sleeves an atomizing core and is configured to supply electronic cigarette liquid into the atomizing core, then the liquid capacity is increased and usage time is extended, but production cost increases

Engineering Contradiction:
Improveusage timeVSAvoidproduction cost
Core Design Contradiction:
Duration of action of moving objectVSEase of manufacture

Solution Approach 1:

The sealing rubber plug and first sealing rubber member are merged into a single integrated component through injection molding. This reduces the number of parts that need to be manufactured, stored, and assembled, directly lowering production costs while maintaining the liquid storage functionality that extends usage time

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The integrated sealing rubber plug and sealing rubber member structure is designed to be self-assembling through interference fit and injection molding integration. This self-service characteristic reduces manual assembly operations and associated labor costs, making production more economical while preserving the extended liquid capacity

Inventive Principle:
Principle #25Self-service

3Duration of action of moving object

If an electronic cigarette liquid bottle sleeves an atomizing core and is configured to supply electronic cigarette liquid into the atomizing core, then the liquid capacity is increased and usage time is extended, but production time is prolonged

Engineering Contradiction:
Improveusage timeVSAvoidproduction time
Core Design Contradiction:
Duration of action of moving objectVSProductivity

Solution Approach 1:

The sealing rubber plug and first sealing rubber member are combined into a single integrated component manufactured through injection molding. This eliminates separate manufacturing and assembly steps, reducing production time while maintaining the liquid storage capacity that extends usage time

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The sealing rubber plug is pre-integrated into the first sealing rubber member during injection molding, preparing the assembly in advance. This preliminary integration eliminates the need for separate assembly operations during final product assembly, reducing production time while preserving the extended liquid capacity functionality

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 solution simplifies the structure, reduces production costs, and facilitates production, while enabling easy addition of liquid to extend the usage time of the cartridge.

Implementation Method 1

a side wall of the first sealing rubber member is in interference fit with the bottle body

Methodology Applied
Scientific EffectInterference fit:

Implementation Method 2

the sealing rubber plug is placed in the first liquid outlet hole and/or the second liquid outlet hole when the electronic cigarette liquid bottle is not assembled on the cartridge assembly, to seal the first liquid outlet hole and/or the second liquid outlet hole

Methodology Applied
Scientific EffectMechanical sealing:

Implementation Method 3

a pulling portion is arranged on the sealing rubber plug; an outer contour of a cross section of the pulling portion is smaller than an outer contour of a cross section of the first liquid outlet hole and smaller than an outer contour of a cross section of the second liquid outlet hole; and the pulling portion is configured to place the sealing rubber plug in the first liquid outlet hole and/or the second liquid outlet hole under a pulling force

Methodology Applied
Scientific EffectMechanical force: Mechanical Force

Implementation Method 4

the sealing rubber plug is separated from the first liquid outlet hole and the second liquid outlet hole under a pushing action of a pushing member of the cartridge assembly when the electronic cigarette liquid bottle is assembled onto the cartridge assembly

Methodology Applied
Scientific EffectMechanical force: Mechanical Force

Data Source

PatentEP4595794A1Electronic cigarette liquid bottle and cartridge structure
Publication Date: 2025.08.06 PAX INT LTD
  • EP4595794A1 patent drawingFigure 1
  • EP4595794A1 patent drawingFigure 2
  • EP4595794A1 patent drawingFigure 3

AI summary

An electronic cigarette liquid bottle (1) includes a bottle body (11), a first sealing rubber member (12), and a bracket (13). A first liquid chamber (16) with a first opening (110) on one side is formed in the bottle body. At least a portion of the first sealing rubber member is arranged at the first opening. A side wall of the first sealing rubber member is in interference fit with the bottle body. A first liquid outlet hole (121) communicated to the first liquid chamber is provided on the first sealing rubber member. The bracket is arranged in the bottle body. Second liquid outlet hole (131) communicated to the first liquid outlet hole is provided on the bracket. When the sealing rubber plug (14) is placed in the first liquid outlet hole and/or the second liquid outlet hole, the first liquid chamber is sealed.