Rotary Disc Smoking Machine for Electronic Cigarette Testing

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Solution Overview

Problem

Conventional smoking machines for electronic cigarettes face challenges in ensuring stable tobacco tar flow, accurate smoke output, and efficient quality control, particularly due to uneven tobacco tar distribution and lack of automatic loading and weighing systems, leading to increased labor costs and errors in detection results.

Innovation Solution

A smoking machine with a rotary disc design that circumferentially rotates the electronic cigarette to ensure full immersion of the fiberglass tar guiding rope, an automatic loading and weighing system for the catcher, and an electronic cigarette triggering system for manual triggering and external power supply, allowing continuous testing without manual intervention.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Stability of the object's composition

If the electronic cigarette is kept stationary on conventional smoking machines, then the device structure is simple, but the tobacco tar distribution becomes uneven and atomization stability deteriorates

Engineering Contradiction:
Improveatomization stabilityVSAvoiddevice structure
Core Design Contradiction:
Stability of the object's compositionVSDevice complexity

Solution Approach 1:

The patent applies the dynamics principle by making the electronic cigarette rotate dynamically during the atomization process. The rotating mechanism ensures that the oil guiding cotton continuously contacts fresh tobacco tar, preventing uneven distribution and maintaining stable atomization. This transforms the static electronic cigarette into a dynamic one, solving the contradiction between stability and complexity.

Inventive Principle:
Principle #15Dynamics

2Measurement precision

If manual operation is used for catcher loading and weighing, then the device structure is simple, but labor costs increase and measurement precision deteriorates

Engineering Contradiction:
Improvesmoke output measurement precisionVSAvoidautomatic loading and weighing system
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The patent implements the self-service principle through the automatic loading and weighing system. The catcher is automatically positioned, loaded with smoke, and weighed by the integrated system without manual intervention. This self-service mechanism ensures precise measurement of smoke output while reducing labor costs, resolving the contradiction between measurement precision and device complexity.

Inventive Principle:
Principle #25Self-service

3Reliability

If the tobacco tar storage cavity is designed with simple structure, then the manufacturing cost is low, but the tobacco tar replenishment timeliness is insufficient and atomization amount stability deteriorates

Engineering Contradiction:
Improveatomization amount stabilityVSAvoidtobacco tar storage cavity structure
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent applies the preliminary action principle by designing the tobacco tar storage cavity with pre-positioned oil guiding cotton that is ready to replenish tobacco tar before the atomization process begins. The rotating mechanism ensures that the oil guiding cotton is continuously supplied with tobacco tar in advance, maintaining stable atomization throughout the process. This preliminary preparation resolves the contradiction between reliability and structural complexity.

Inventive Principle:
Principle #10Preliminary action

4Measurement precision

If conventional smoking machines are used without rotation, then the device complexity is low, but the detection result accuracy deteriorates due to uneven tobacco tar consumption

Engineering Contradiction:
Improvedetection result accuracyVSAvoidrotary disc mechanism
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The patent uses the dynamics principle by implementing a rotating electronic cigarette on the rotary disc. This rotation ensures uniform consumption of tobacco tar during detection, eliminating the uneven distribution problem of stationary designs. The dynamic rotation mechanism improves detection accuracy while accepting increased device complexity, resolving the contradiction between measurement precision and device complexity.

Inventive Principle:
Principle #15Dynamics

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 stabilizes smoke output, reduces errors in detection results, and increases efficiency by ensuring consistent tobacco tar supply and automatic handling of catcher changes, thereby improving the accuracy and efficiency of electronic cigarette testing.

Implementation Method 1

a rotary disc 200 installed on the housing 100, the rotary disc 200 rotates relative to the housing 100 with a central axis of the rotary disc 200 as a center... the rotary disc is able to rotate to a position to make the axial through hole in communication with the sealing ventilation hole

Methodology Applied
Scientific EffectCentrifugal force: Centrifugal Force

Implementation Method 2

A control circuit is triggered by a switch manually or through pneumatic pressure and supplies power to a heating wire. A current enables the heating wire to generate a high temperature.

Methodology Applied
Scientific EffectJoule heating: Joule Heating

Implementation Method 3

A fiberglass oil guiding rope twisting inside the heating wire is affected by the high temperature and generates a wick effect. Tobacco tar is continuously transmitted to a high temperature end along the fiberglass oil guiding rope.

Methodology Applied
Scientific EffectCapillary action: Capillary Action

Implementation Method 4

Through an automatic loading and weighing system of a catcher disposed on the smoking machine for an electronic cigarette. In a smoking gap of the electronic cigarette, a catcher is automatically weighed, and whether smoke is still released is judged based on a variation between two weighing values

Methodology Applied
Scientific EffectGravitation: Gravitation

Data Source

PatentEP3399298B1Smoking machine for electronic cigarette
Publication Date: 2020.10.07 SHANGHAI TOBACCO GROUP CO LTD
  • EP3399298B1 patent drawingFigure 1~2
  • EP3399298B1 patent drawingFigure 3
  • EP3399298B1 patent drawingFigure 4

AI summary

The present invention provides a smoking machine for an electronic cigarette, relating to the technical field of electronic cigarettes. The smoking machine for an electronic cigarette comprises: a housing; a rotary disc installed on a side surface of the housing, a central axis of the rotary disc is parallel to a horizontal plane, and the rotary disc rotates relative to the housing with the central axis of the rotary disc as a center, a disc-body smoking through hole is provided on an end face of the rotary disc, a housing sealing member is disposed on a side surface of the housing, a sealing ventilation hole penetrating into the housing in a horizontal direction is provided in the housing sealing member, and an end face of the housing sealing member is in contact with the end face of the rotary disc; and a main control circuit board electrically connected to the rotary disc. The rotary disc of the present invention is perpendicular to a horizontal plane, and the electronic cigarette circumferentially rotates along with the rotary disc in a smoking experiment process, so that tobacco tar in a cigarette cartridge flows and fully immerses the oil guiding cotton, thus ensuring sufficient and steady supply of the tobacco tar to an atomizer, and guaranteeing atomization efficiency, atomization amount, and the stability and accuracy of experiment data.