Electronic Cigarette E-Liquid Extruder Design

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Conventional electronic cigarettes suffer from e-liquid quality degradation when not used for a long time due to prolonged exposure of e-liquid to heating elements, affecting taste and performance.

Innovation Solution

An electronic cigarette design featuring an e-liquid extruder with a motor-driven piston that controls e-liquid flow into the heating element, along with a sensor to adjust e-liquid supply based on air flow, ensuring consistent e-liquid quality and taste by regularly replenishing the e-liquid and regulating its flow.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Duration of action of moving object

If the heating element remains immersed in e-liquid for long periods, then the heating element is ready for immediate use, but the e-liquid quality degrades and taste deteriorates

Engineering Contradiction:
Improveheating element readinessVSAvoide-liquid quality
Core Design Contradiction:
Duration of action of moving objectVSReliability

Solution Approach 1:

The heating element is extracted from the e-liquid reservoir when not in use. The atomizing assembly can be detached from the battery assembly, removing the heating element from contact with the e-liquid, thereby preventing quality degradation while maintaining readiness for use.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The system transitions from a static immersion state to a dynamic on-demand state. The heating element is only introduced into the e-liquid immediately before use through assembly detachment, creating a dynamic system that adapts between storage and operation modes to preserve e-liquid quality.

Inventive Principle:
Principle #15Dynamics

2Productivity

If the e-liquid is continuously supplied to the heating element, then the atomization performance is maintained, but the e-liquid quality degrades over time

Engineering Contradiction:
Improveatomization performanceVSAvoide-liquid quality
Core Design Contradiction:
ProductivityVSReliability

Solution Approach 1:

Instead of continuous supply, the e-liquid is supplied periodically only when needed. The system uses on-demand atomization where the heating element is assembled with the reservoir only when the user intends to use the device, creating periodic contact rather than continuous immersion.

Inventive Principle:
Principle #19Periodic action

Solution Approach 2:

The system provides self-service through immediate assembly before use. The user assembles the atomizing assembly with the battery assembly containing fresh e-liquid right before use, ensuring the heating element receives e-liquid only when needed, eliminating prolonged exposure issues.

Inventive Principle:
Principle #25Self-service

3Reliability

If the heating element is kept separate from e-liquid, then e-liquid quality is preserved, but the device requires assembly before use

Engineering Contradiction:
Improvee-liquid qualityVSAvoiddevice readiness
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The e-liquid is prepared in advance in the battery assembly reservoir, and the atomizing assembly is pre-loaded with the heating element. Both components are ready separately, and assembly before use is a simple preliminary action that ensures quality preservation while maintaining operational readiness.

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 solution maintains e-liquid quality and taste by regularly replenishing and controlling the e-liquid supply, enhancing user experience and extending the lifespan of the e-liquid, while also providing adjustable power modes and e-liquid flow control.

Implementation Method 1

the heating element comprises a first through hole disposed on the bottom portion and communicating with the e-liquid conduction channel; the heating element further a bottom surface, a peripheral wall, and a plurality of heating wires disposed on the bottom surface and/or the peripheral wall

Methodology Applied
Scientific EffectHeating: Heating

Implementation Method 2

the heating element is disposed in the first silicone ring to atomize the e-liquid

Methodology Applied
Scientific EffectAtomization:

Implementation Method 3

the piston is movable in the e-liquid tank to extrude the e-liquid out of the e-liquid outlet

Methodology Applied
Scientific EffectMechanical extrusion: Mechanical Force

Implementation Method 4

the first silicone ring is disposed between the heating element and the base to prevent leakage of the e-liquid

Methodology Applied
Scientific EffectSealing:

Implementation Method 5

when external air is sucked into the electronic cigarette, the sensor detects air flow to control the amount of the e-liquid supplied

Methodology Applied
Scientific EffectAir flow detection:

Implementation Method 6

a plurality of heating wires disposed on the bottom surface and/or the peripheral wall

Methodology Applied
Scientific EffectJoule heating: Joule Heating

Data Source

PatentEP4008195B1Electronic cigarette
Publication Date: 2024.10.16 SHENZHEN EIGATE TECH CO LTD
  • EP4008195B1 patent drawingFigure 1~1B
  • EP4008195B1 patent drawingFigure 2
  • EP4008195B1 patent drawingFigure 3

AI summary

An electronic cigarette includes an e-liquid extruder. The e-liquid extruder includes an e-liquid tank, a piston, a push rod, and a motor. The piston is disposed in a bottom opening of the e-liquid tank. The push rod includes an inner wall with a female thread and the rotor includes an outer wall with a male thread. The male thread corresponds to the female thread. The piston is disposed on the push rod; when the motor is energized and rotates, the push rod moves upward to extrude e-liquid out of the e-liquid tank.