Atomizer Layout With Bottom Reservoir to Prevent E-Liquid Leakage

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Solution Overview

Problem

Existing atomizers in electronic cigarettes suffer from tobacco liquid spillage due to the liquid conductor becoming saturated and expelling liquid under gravity, leading to cumbersome usage and deteriorated user experience.

Innovation Solution

The atomizer design includes a liquid conductor with a main portion surrounding the heater and an extending portion that absorbs tobacco liquid from below, positioned such that it does not easily saturate, with the reservoir located below the gas pathway to prevent liquid deposition into the gas pathway.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Quantity of substance

If the liquid conductor transfers tobacco liquid from the lateral surface to the heater, then the tobacco liquid can be delivered to the heater for heating, but the liquid conductor becomes easy to saturate causing tobacco liquid to be expelled inadvertently under gravity force

Engineering Contradiction:
Improvetobacco liquid deliveryVSAvoidliquid conductor saturation
Core Design Contradiction:
Quantity of substanceVSReliability

Solution Approach 1:

The patent inverts the traditional liquid transfer direction by positioning the reservoir below the heater and having the liquid conductor extend upward to deliver liquid. This gravitational alignment prevents saturation and inadvertent expulsion while maintaining effective liquid delivery to the heater.

Inventive Principle:
Principle #13The other way round (Inversion)

Solution Approach 2:

The liquid conductor is configured to extend in a vertical direction from the lower reservoir upward to the heater, changing the spatial dimension of liquid delivery. This vertical arrangement utilizes gravity favorably to prevent liquid accumulation and saturation in the conductor.

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

2Ease of manufacture

If the reservoir is positioned above the heater, then liquid delivery is straightforward, but tobacco liquid spills into the gas pathway deteriorating user experience

Engineering Contradiction:
Improveliquid delivery configurationVSAvoidtobacco liquid spillage
Core Design Contradiction:
Ease of manufactureVSObject-affected harmful factors

Solution Approach 1:

The patent inverts the conventional reservoir positioning by placing it below the heater instead of above. This inversion eliminates the harmful effect of liquid spillage into the gas pathway while maintaining reliable liquid delivery through the upward-extending liquid conductor.

Inventive Principle:
Principle #13The other way round (Inversion)

Solution Approach 2:

The patent converts the potentially harmful effect of gravity (which causes liquid spillage when reservoir is above heater) into a beneficial effect by positioning the reservoir below the heater. Gravity now assists in preventing liquid accumulation and spillage while maintaining continuous liquid delivery to the heater.

Inventive Principle:
Principle #22Blessing in disguise (Convert harm into benefit)

3Quantity of substance

If the liquid conductor extends laterally to transfer liquid, then liquid can reach the heater, but the structure becomes cumbersome and complex

Engineering Contradiction:
Improvetobacco liquid transferVSAvoidliquid conductor configuration
Core Design Contradiction:
Quantity of substanceVSDevice complexity

Solution Approach 1:

The patent simplifies the liquid conductor configuration by inverting the spatial arrangement - positioning the reservoir below the heater and having the conductor extend vertically upward. This eliminates the need for complex lateral routing and reduces overall structural complexity while maintaining effective liquid transfer.

Inventive Principle:
Principle #13The other way round (Inversion)

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

This design effectively prevents tobacco liquid leakage by ensuring it settles into the reservoir, improving user experience by reducing spillage and enhancing the smooth operation of the electronic cigarette.

Implementation Method 1

a liquid conductor, extending towards the proximal end of the atomizing body to contact the heater in the gas pathway and extending towards the distal end of the atomizing body to absorb tobacco liquid from the reservoir

Methodology Applied
Scientific EffectCapillary action: Capillary Action

Implementation Method 2

a heater, configured for heating the tobacco liquid to generate an aerosol

Methodology Applied
Scientific EffectHeating: Heating

Implementation Method 3

the atomizer transfers the tobacco liquid in the reservoir to the heater for heating and atomizing, exterior air flowing in through the gas-inlet pathway bears the atomized tobacco liquid, then expelled through the gas-outlet pathway to form the aerosol mist or vapour

Methodology Applied
Scientific EffectEvaporation: Evaporation

Data Source

PatentEP3504992B1Atomizer and electronic cigarette having same
Publication Date: 2025.12.24 SHENZHEN FIRST UNION TECH CO LTD
  • EP3504992B1 patent drawingFigure 1
  • EP3504992B1 patent drawingFigure 2
  • EP3504992B1 patent drawingFigure 3

AI summary

An atomizer and an electronic cigarette having the same are provided, the atomizer includes an atomizing body having a proximal end, a distal end opposite to the proximal end, a longitudinal axis between the proximal end and the distal end, and a transverse axis that is perpendicular to the longitudinal axis; an aerosol outlet adjacent to the proximal end of the atomizing body; an air inlet is bored at a lateral surface of the atomizing body; a gas pathway within the atomizing body and adjacent to the proximal end of the atomizing body; the gas pathway intercommunicating with the air inlet and the aerosol outlet; a reservoir within the atomizing body and adjacent to the distal end of the atomizing body, the reservoir configured to store tobacco liquid; a heater, configured for heating the tobacco liquid to generate an aerosol; the heater being disposed inside the gas pathway; a liquid conductor, extending towards the proximal end of the atomizing body to contact the heater in the gas pathway and extending towards the distal end of the atomizing body to absorb tobacco liquid from the reservoir, such that the liquid conductor is capable of supplying tobacco liquid to the heater.