Atomizer Pressure Relief Structure for Stable Suction and Leak Control

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Solution Overview

Problem

Existing e-cigarettes suffer from unstable internal air pressure and e-liquid leakage due to the lack of a pressure relief structure, especially during high-altitude simulations, increasing production costs and reducing competitiveness.

Innovation Solution

An atomization device with an air guide pressure relief member, including an air guide tube and circulating e-liquid compartment, balances pressure by allowing e-liquid to flow through circulating e-liquid holes, stabilizing the internal environment and preventing leakage.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If no pressure relief structure is provided in the e-liquid cup barrel, then the device structure remains simple, but the internal air pressure becomes unstable and e-liquid leakage occurs under high-altitude simulation conditions

Engineering Contradiction:
Improveinternal air pressure stabilityVSAvoidstructure complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The e-liquid cup barrel is divided into a barrel body and a separate pressure relief groove structure. The pressure relief groove is formed as a distinct feature on the inner wall of the barrel, allowing pressure equalization without requiring a completely separate pressure relief device. This segmentation maintains structural simplicity while improving reliability.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The pressure relief groove acts as an intermediary structure between the high-altitude simulation environment and the e-liquid storage space. It provides a controlled pathway for pressure equalization, mediating the effect of external pressure changes on the internal e-liquid system and preventing direct leakage.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Reliability

If a pressure relief structure is added to the e-liquid cup barrel, then internal air pressure stability improves under high-altitude simulation, but the device structure becomes more complex

Engineering Contradiction:
Improvee-liquid leakage preventionVSAvoidbarrel structure complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

Instead of redesigning the entire e-liquid cup barrel, the pressure relief function is implemented locally through a groove structure formed on the inner wall of the barrel. This localized modification provides the necessary pressure relief capability while minimizing the overall structural complexity of the device.

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The pressure relief groove changes the physical parameters of the barrel structure by introducing a controlled volume and pathway for pressure equalization. This parameter modification allows the system to adapt to high-altitude simulation conditions without fundamentally altering the barrel's basic structure.

Inventive Principle:
Principle #35Parameter changes

3Reliability

If the air guide pressure relief member is positioned deeply within the e-liquid storage cotton, then pressure relief effectiveness is reduced, but the structure remains compact

Engineering Contradiction:
Improvepressure relief effectivenessVSAvoidair guide tube protrusion length
Core Design Contradiction:
ReliabilityVSLength of moving object

Solution Approach 1:

The air guide pressure relief member is pre-positioned to protrude from the e-liquid storage cotton by a predetermined distance. This preliminary positioning ensures that the pressure relief pathway is established before the device is subjected to high-altitude simulation, allowing immediate and effective pressure equalization when pressure changes occur.

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 device achieves stable pressure relief and reduces e-liquid leakage, enhancing user experience and enterprise competitiveness by maintaining pressure balance under varying conditions.

Implementation Method 1

the circulating e-liquid compartment is able to balance a pressure by flowing of e-liquid in the e-liquid cup barrel through the circulating e-liquid hole

Methodology Applied
Scientific EffectPressure gradient: Pressure Gradient

Implementation Method 2

the air guide pressure relief member is able to cooperate with the air inlet hole to realize circulating pressure relief in the e-liquid cup barrel

Methodology Applied
Scientific EffectPressure relief: Depressurisation

Data Source

PatentEP4578306A1Atomization device with stable pressure relief and suction
Publication Date: 2025.07.02 SHENZHEN HANQINGDA TECH CO LTD
  • EP4578306A1 patent drawingFigure 1
  • EP4578306A1 patent drawingFigure 2
  • EP4578306A1 patent drawingFigure 3

AI summary

An atomization device with stable pressure relief and suction is disclosed, including an atomizer body. The atomizer body is internally provided with an e-liquid cup barrel, the e-liquid cup barrel is provided with an air guide pressure relief member, an atomizing core assembly and an e-liquid storage cotton, the atomizer body is provided with an air inlet hole at a lower end, the atomizer body is internally provided with a circulating e-liquid compartment, the e-liquid cup barrel is provided with a circulating e-liquid hole, the circulating e-liquid compartment is able to balance a pressure by flowing of e-liquid in the e-liquid cup barrel through the circulating e-liquid hole, and a lower end of the air guide pressure relief member is communicated with the air inlet hole.