Atomizer Sealing Cover Prevents E-Cig Liquid Leakage

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Solution Overview

Problem

Existing electronic cigarette atomizers face issues with tobacco liquid leakage from the air inlet during transportation or use, leading to unsatisfactory performance.

Innovation Solution

An atomizer design featuring a housing with a sealing cover that seals the liquid filling opening and an annular air passage connecting the air inlet to the atomizing device, allowing external air to enter and aerosol to be expelled through the mouthpiece, preventing liquid leakage.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If the liquid filling opening is left open for refilling, then the liquid chamber can be replenished, but tobacco liquid may leak from the air inlet during transportation or use

Engineering Contradiction:
Improveliquid refillingVSAvoidliquid leakage prevention
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The liquid filling opening is segmented from the air inlet by providing a separate sealing cover that can be selectively opened for refilling while remaining closed during normal use and transportation. This segmentation allows the refilling function to be independent from the leakage prevention requirement.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The sealing cover is preliminarily installed to seal the liquid filling opening before transportation or use begins. This preliminary sealing action prevents leakage in advance while allowing users to open it when refilling is needed.

Inventive Principle:
Principle #10Preliminary action

2Reliability

If the sealing cover seals the liquid filling opening, then liquid leakage is prevented, but the structure becomes more complex

Engineering Contradiction:
Improveliquid leakage preventionVSAvoidsealing structure
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The sealing cover serves multiple functions: it seals the liquid filling opening to prevent leakage, defines the air inlet opening, and provides a mounting surface for the air inlet. This multi-functionality reduces the need for additional separate components, thereby limiting the increase in structural complexity.

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

Solution Approach 2:

The sealing cover merges the sealing function with the air inlet structure, combining what could be separate components into a single integrated element. This merging reduces the overall number of parts while maintaining both leakage prevention and air supply functions.

Inventive Principle:
Principle #5Merging (Combining)

3Productivity

If an annular air passage is created between the air pipe and liquid chamber, then external air can reach the atomizing device, but the structure becomes more complex

Engineering Contradiction:
Improveaerosol generationVSAvoidair passage structure
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The air passage transitions from a linear path to an annular (ring-shaped) structure, utilizing the radial dimension around the air pipe. This dimensional change allows air to flow around the air pipe rather than through a complex internal passage, simplifying the overall structure while ensuring proper air supply to the atomizing device.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

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 effectively prevents tobacco liquid leakage by sealing the liquid filling opening and ensuring that aerosol is properly formed and expelled, enhancing the usability and reliability of electronic cigarettes.

Implementation Method 1

an atomizing device (112) arranged in the housing (110) and configured for atomizing the tobacco liquid to form aerosol

Methodology Applied
Scientific EffectVaporization: Evaporation

Implementation Method 2

When the sealing cover is connected with the first end, the sealing cover seals the liquid filling opening

Methodology Applied
Scientific EffectSealing: Physical Containment

Data Source

PatentEP3199194B1Atomizer and electronic cigarette having same
Publication Date: 2019.06.12 SHENZHEN FIRST UNION TECH CO LTD
  • EP3199194B1 patent drawingFigure 1
  • EP3199194B1 patent drawingFigure 2
  • EP3199194B1 patent drawingFigure 3

AI summary

The present disclosure relates to an atomizer for an electronic cigarette. The atomizer includes a housing (110), a sealing cover (140), a mouthpiece (150), an atomizing device (112), and an air pipe (113). The housing has a first end (120) and a second end (130). The housing defines a liquid chamber (111) configured for containing tobacco liquid. The atomizing device is configured for atomizing the tobacco liquid to form aerosol. The first end defines a liquid filling opening (121) in communication with the liquid chamber (111). When the sealing cover (140) is connected with the first end (120), the sealing cover seals the liquid filling opening (121). The sealing cover (140) defines an air inlet. The air pipe (113) and the liquid chamber (111) cooperatively define an annular air passage (160) in communication with the air inlet (141), so that external air can enter the air inlet (141) and reach the atomizing device through the air passage (160), and then together with the aerosol can be expelled via the mouthpiece (150).