Electronic Cigarette Preheater with Tank Heating Wire for Cold-Weather Flow

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Solution Overview

Problem

Conventional electronic cigarettes face issues with e-liquid solidification and non-uniform preheating leading to passage blockages, especially in cold conditions, and existing preheating methods do not adequately address these issues.

Innovation Solution

An electronic cigarette design incorporating a preheater with a heating wire in the e-liquid tank, an air duct, and a ceramic core for uniform preheating and atomization, along with insulation components and dual control circuits for precise e-liquid preheating and atomization control.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If e-liquid is preheated before flowing into the atomization core, then the e-liquid flow blocking issue is addressed, but the preheating is non-uniform which may still cause blocking

Engineering Contradiction:
Improvee-liquid flow continuityVSAvoidpreheating uniformity
Core Design Contradiction:
ReliabilityVSManufacturing precision

Solution Approach 1:

The heating process is divided into two independent stages: preheating stage using a heating wire in the e-liquid tank, and atomization stage using a ceramic core in the atomization chamber. This segmentation allows each component to perform its specific function optimally without interfering with the other, ensuring both preheating effectiveness and atomization uniformity.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

A valve mechanism serves as an intermediary between the preheating system and the atomization system. It controls the timing and flow of preheated e-liquid to the atomization core, ensuring that only properly heated e-liquid proceeds to the atomization chamber, thereby maintaining flow continuity and preventing blocking.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Temperature

If a heating wire is used to preheat e-liquid, then the e-liquid can be heated before atomization, but the heating may not be uniform throughout the e-liquid

Engineering Contradiction:
Improvee-liquid temperatureVSAvoidheating uniformity
Core Design Contradiction:
TemperatureVSManufacturing precision

Solution Approach 1:

The e-liquid is preheated in advance within the tank using the heating wire before being transferred to the atomization chamber. This preliminary heating action ensures that the e-liquid reaches an appropriate temperature state prior to atomization, preventing blocking and ensuring smooth flow while the ceramic core then completes the heating and atomization process uniformly.

Inventive Principle:
Principle #10Preliminary action

3Productivity

If e-liquid is heated directly in the atomization core, then atomization occurs, but the e-liquid may solidify in cold conditions before reaching the core

Engineering Contradiction:
Improveatomization efficiencyVSAvoide-liquid flow stability
Core Design Contradiction:
ProductivityVSReliability

Solution Approach 1:

The system performs preliminary heating of the e-liquid in the tank using the heating wire before the e-liquid reaches the atomization chamber. This advance heating action prevents the e-liquid from solidifying in cold conditions, ensuring it remains in a flowable state and can be efficiently atomized by the ceramic core without blocking the passage.

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 design effectively prevents e-liquid blockages by preheating thick or paste e-liquid to a fluid state, ensuring smooth flow and efficient atomization, with easy operation and separate control of preheating and atomization processes.

Implementation Method 1

the heating wire produces heat

Methodology Applied
Scientific EffectJoule heating: Joule Heating

Implementation Method 2

a ceramic core configured to atomize e-liquid flowing through the ceramic core

Methodology Applied
Scientific EffectVaporization: Evaporation

Data Source

PatentEP3932221B1Electronic cigarette
Publication Date: 2025.09.10 SHENZHEN EIGATE TECH CO LTD
  • EP3932221B1 patent drawingFigure 1
  • EP3932221B1 patent drawingFigure 2
  • EP3932221B1 patent drawingFigure 3

AI summary

An electronic cigarette includes a preheater. The preheater includes an e-liquid tank and a heating wire disposed in the e-liquid tank. In a power-on state, the heating wire produces heat.