Evaporator Insert With Direct Liquid Supply For E-Cigarettes

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Solution Overview

Problem

Conventional electronic cigarette products using wick-coil technology face issues with local overheating due to liquid supply shortages, leading to 'dry puff' and potential pollutant release, which needs to be addressed for reliable and safe operation.

Innovation Solution

The evaporator insert features a carrier that mechanically stabilizes the evaporator, with a through-opening for liquid supply and an air duct design to promote efficient vaporization, including electrical contacts and sensors for control and monitoring, ensuring reliable and reproducible vaporization.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If wick-coil technology is used for liquid supply to the evaporator, then the device structure is simple, but insufficient wicking leads to localized overheating and dry puff

Engineering Contradiction:
Improvevaporization reliabilityVSAvoidlocalized overheating
Core Design Contradiction:
ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The patent extracts the wick component from the system and replaces it with a direct liquid supply mechanism where liquid is delivered directly to the evaporator surface without capillary action, eliminating the wicking limitation that causes localized overheating

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The patent introduces a liquid distribution layer as an intermediary between the liquid supply and evaporator, ensuring uniform liquid distribution across the evaporator surface and preventing localized overheating through controlled liquid flow

Inventive Principle:
Principle #24Intermediary (Mediator)

2Device complexity

If the evaporator is integrated directly into the base part, then the structure is compact, but assembly and disassembly become difficult

Engineering Contradiction:
Improvestructural integrationVSAvoidassembly ease
Core Design Contradiction:
Device complexityVSEase of manufacture

Solution Approach 1:

The patent segments the device into modular components: a base part, an evaporator assembly, and a housing. The evaporator is mounted on a support structure that can be independently assembled and disassembled, facilitating manufacturing and maintenance while maintaining structural integration during operation

Inventive Principle:
Principle #1Segmentation

3Volume of stationary object

If the evaporator outlet side is not aligned parallel to the longitudinal axis, then space utilization may be improved, but effective arrangement and vapor addition to airflow are reduced

Engineering Contradiction:
Improvespace utilizationVSAvoidvaporization efficiency
Core Design Contradiction:
Volume of stationary objectVSProductivity

Solution Approach 1:

The patent aligns the evaporator outlet side parallel to the longitudinal axis of the device, optimizing the spatial arrangement for efficient vapor release into the airflow channel. This dimensional alignment ensures that vapor is effectively added to the airflow in the direction of flow, maximizing vaporization efficiency

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 provides a stable and efficient vaporization process, preventing overheating and ensuring consistent aerosol production, while allowing for easy assembly and adaptation to various designs, with reduced power loss and improved aerosol quality.

Implementation Method 1

at least one electric evaporator for vaporizing liquid supplied to the evaporator and supplying the vaporized liquid to an airflow

Methodology Applied
Scientific EffectVaporization: Evaporation

Implementation Method 2

the support forms an air channel to guide the airflow, facilitating reliable delivery and production of aerosol or vapor

Methodology Applied
Scientific EffectFluid flow:

Implementation Method 3

The through-opening connects the liquid opening to the evaporator in a liquid-conducting manner, in order to facilitate a liquid-conducting connection of the evaporator or the evaporator insert to an external liquid storage

Methodology Applied
Scientific EffectLiquid conduction:

Data Source

PatentEP3841895B1Evaporator insert for an inhaler, in particular an electronic cigarette product, evaporator tank unit and an electronic cigarette product
Publication Date: 2023.05.03 KORBER TECHNOLOGIES GMBH
  • EP3841895B1 patent drawingFigure 1
  • EP3841895B1 patent drawingFigure 2~3
  • EP3841895B1 patent drawingFigure 4~7

AI summary

An evaporator insert (100) for an electronic cigarette product (10) comprises at least one electric evaporator (60) for vaporizing liquid (50) supplied to the evaporator (60) and supplying the vaporized liquid to an airflow (34), a base part (83) with a jacket side (31) that encloses an airflow channel (30) through which the airflow (34) can flow, wherein at least one liquid opening (115) for supplying vaporizable liquid (50) from the outside into the evaporator insert (100) to the evaporator (60) is arranged on the jacket side (31) of the base part (14).The evaporator insert (100) comprises a support (4) for holding the evaporator (60), and the support (4) has a through-opening (104) which corresponds to the liquid opening (115) for supplying liquid to the evaporator (60), wherein the evaporator insert (100) has a longitudinal axis (L), and an outlet side (64) of the evaporator is aligned parallel to the longitudinal axis (L).