Atomizer Refill Structure With Movable Inlet Sealing

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Solution Overview

Problem

Conventional atomizers face issues with e-liquid leakage due to loose rubber plugs that fail to seal the inlet after refilling, leading to missing plugs and inefficient refilling processes.

Innovation Solution

An atomizer design featuring a movable e-liquid injection member with threaded engagement and a seal ring mechanism that ensures e-liquid chamber filling and sealing, preventing leakage by moving between positions to enter and exit the chamber.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a rubber plug is used to block the e-liquid inlet, then the inlet can be sealed, but the plug becomes loose and fails to seal properly after refilling, causing leakage

Engineering Contradiction:
Improvesealing reliabilityVSAvoidrefilling operation
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The injection member is designed to be movable between a first position (for refilling) and a second position (for sealing). This dynamic positioning allows the system to switch between open and sealed states, resolving the contradiction between ease of refilling and sealing reliability. The male thread and female thread enable controlled movement of the injection member to maintain reliable sealing while allowing periodic refilling operations.

Inventive Principle:
Principle #15Dynamics

2Reliability

If the e-liquid inlet is blocked by a rubber plug, then the chamber is sealed, but the plug is prone to being lost and fails to prevent leakage

Engineering Contradiction:
Improveleakage preventionVSAvoidsealing mechanism
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The sealing function is merged with the injection member itself. The injection member incorporates both the refilling function and the sealing function in a single integrated component, eliminating the need for a separate rubber plug. This reduces device complexity while maintaining reliable leakage prevention through the threaded engagement mechanism.

Inventive Principle:
Principle #5Merging (Combining)

3Productivity

If the injection member is movable between positions, then refilling efficiency is improved, but the mechanism requires threaded engagement which increases device complexity

Engineering Contradiction:
Improverefilling efficiencyVSAvoidthreaded engagement mechanism
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The threaded engagement mechanism serves multiple functions: it provides structural support for the injection member, enables controlled movement between positions, ensures reliable sealing through precise positioning, and prevents over-tightening. This multi-functionality justifies the added complexity by eliminating the need for separate mechanisms for each function, ultimately simplifying the overall system.

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 design simplifies the e-liquid refilling process, ensuring efficient and leak-proof filling of the e-liquid chamber, enhancing operational efficiency and reliability.

Implementation Method 1

an elastic member disposed around the e-liquid injection member; a top portion and a bottom portion of the elastic member abut against the first flange and the second flange, respectively

Methodology Applied
Scientific EffectElasticity: Elasticity

Data Source

PatentEP4118987B1atomizer
Publication Date: 2025.12.03 SHENZHEN EIGATE TECH CO LTD
  • EP4118987B1 patent drawingFigure 1
  • EP4118987B1 patent drawingFigure 2
  • EP4118987B1 patent drawingFigure 3

AI summary

An atomizer includes a housing including an e-liquid chamber. The e-liquid chamber is equipped with an e-liquid injection member. The e-liquid injection member includes at least one first e-liquid inlet. The e-liquid injection member is movable between a first position and a second position; in the first position, the at least one first e-liquid inlet communicates with the e-liquid chamber; and in the second position, the at least one first e-liquid inlet is not in communication with the e-liquid chamber.