Porous Liquid Blocking Element for Atomizer Tank Airflow

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Solution Overview

Problem

Existing atomizers face unsatisfactory atomization due to negative pressure in the liquid tank, causing tobacco liquid to flow out unsmoothly through the liquid outlet, which affects the atomization effect.

Innovation Solution

A liquid tank design featuring a bottom part with a liquid chamber, a first air inlet, a first porous liquid blocking element, and a top part that cooperatively clamps the blocking element, allowing external air to enter while preventing tobacco liquid from leaking, using porous polyphenylene sulfone resins or cellucotton with a micro-hole structure to control porosity and allow air passage.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If air inlet is provided in the liquid tank, then external air can enter to prevent negative pressure, but tobacco liquid may leak out through the air inlet

Engineering Contradiction:
Improveatomization effectVSAvoidliquid leakage
Core Design Contradiction:
ReliabilityVSObject-generated harmful factors

Solution Approach 1:

The patent applies porous liquid blocking elements made of porous polyphenylene sulfone resins or cellucotton with micro-hole structures. These porous materials allow air molecules to pass through while blocking larger tobacco liquid molecules, thereby preventing liquid leakage while maintaining air flow to prevent negative pressure in the liquid tank.

Inventive Principle:
Principle #31Porous materials

Solution Approach 2:

The patent implements different functional zones within the liquid tank by providing separate air inlet and liquid outlet openings with distinct blocking elements. The first porous liquid blocking element specifically covers the air inlet with different porosity characteristics than the second porous liquid blocking element at the liquid outlet, creating localized functional properties to address different requirements at different locations.

Inventive Principle:
Principle #3Local quality

2Object-generated harmful factors

If porous material with micro-hole structure is used to block liquid, then liquid leakage is prevented, but air passage may be restricted

Engineering Contradiction:
Improveliquid leakage preventionVSAvoidair passage efficiency
Core Design Contradiction:
Object-generated harmful factorsVSProductivity

Solution Approach 1:

The patent utilizes porous materials with specifically engineered micro-hole structures that have controlled pore sizes and distributions. These materials are selected to have pore dimensions that permit air molecules to pass through efficiently while being sufficiently small to block tobacco liquid molecules, thereby maintaining both liquid blocking capability and air passage efficiency.

Inventive Principle:
Principle #31Porous materials

Solution Approach 2:

The patent employs composite porous structures combining porous polyphenylene sulfone resins or cellucotton materials. These composite materials integrate the advantages of different porous substances to achieve optimal balance between liquid blocking performance and air permeability, creating a material system that simultaneously prevents liquid leakage and maintains adequate air flow.

Inventive Principle:
Principle #40Composite materials

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

Ensures smooth flow of tobacco liquid into the atomizing unit, preventing negative pressure and enhancing the atomization efficiency by maintaining adequate liquid supply and preventing liquid leakage.

Implementation Method 1

The first porous liquid blocking element covers the first air inlet. The first porous liquid blocking element is capable of preventing the tobacco liquid in the liquid chamber from flowing out via the first air inlet, and allows air to pass through

Methodology Applied
Scientific EffectPorous material filtration: Porosity

Implementation Method 2

using porous polyphenylene sulfone resins or cellucotton with a micro-hole structure to control porosity and allow air passage

Methodology Applied
Scientific EffectCapillary action: Capillary Action

Data Source

PatentUS10661032B2Liquid tank, atomizer and electronic cigarette having same
Publication Date: 2020.05.26 SHENZHEN FIRST UNION TECH CO LTD
  • US10661032B2 patent drawing
  • US10661032B2 patent drawing
  • US10661032B2 patent drawing

AI summary

An exemplary liquid tank for an atomizer includes a bottom part, a liquid outlet, a first air inlet, a first porous liquid blocking element, and a top part. The bottom part has a first end and an opposite second end, and defines a liquid chamber for containing tobacco liquid. The liquid outlet is defined in the second end. The first air inlet is defined in the first end, so that external air can enter the liquid chamber via the first air inlet. The first porous liquid blocking element covers the first air inlet. The first porous liquid blocking element is capable of preventing the tobacco liquid in the liquid chamber from flowing out via the first air inlet, and allows air to pass through. The top part is detachably connected to the first end. The top part and the bottom part cooperatively clamp the first liquid blocking element therebetween.