Sidestream Smoke Removal with Automatic Cigarette Cutting

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Solution Overview

Problem

Existing sidestream smoke removal devices lack a safe extinguishing function, leading to user inconvenience and risks of burns or fire when manually extinguishing cigarettes.

Innovation Solution

A sidestream smoke removal device with a cutting portion that automatically cuts the smoking article upon detection of the end of smoking, combined with a temperature sensor and a controller to manage ventilation and exhaust, ensuring a safe and convenient extinguishing process.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If a cutting portion is added to automatically cut the smoking article, then safety and ease of use are improved, but device complexity increases

Engineering Contradiction:
Improveease of useVSAvoiddevice complexity
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The device automatically detects when smoking has ended through temperature sensing and autonomously activates the cutting portion to extinguish the cigarette, eliminating the need for user intervention in the extinguishing process

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The manual mechanical action of user-operated extinguishing is replaced by an automated system combining temperature sensors, control logic, and an actuated cutting mechanism that performs the extinguishing function automatically

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

2Device complexity

If manual extinguishing is required, then device complexity is reduced, but safety risks increase

Engineering Contradiction:
Improvedevice complexityVSAvoidsafety
Core Design Contradiction:
Device complexityVSReliability

Solution Approach 1:

The device autonomously monitors smoking status via temperature sensors and automatically executes the cutting action to extinguish the cigarette, removing human error and carelessness from the extinguishing process

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The temperature sensor continuously monitors the smoking article's temperature and provides feedback to the controller, which activates the cutting portion when the temperature indicates smoking has ended, ensuring reliable automatic extinguishing

Inventive Principle:
Principle #23Feedback

3Reliability

If automatic cutting is implemented, then safety is improved, but manufacturing complexity increases

Engineering Contradiction:
ImprovesafetyVSAvoidease of manufacture
Core Design Contradiction:
ReliabilityVSEase of manufacture

Solution Approach 1:

The device is divided into functional modules including the cutting portion, temperature sensor, controller, and actuation mechanism, allowing for standardized manufacturing and assembly of discrete components

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

An actuator serves as an intermediary component that translates electrical control signals into mechanical cutting action, simplifying the interface between the electronic control system and the mechanical cutting portion

Inventive Principle:
Principle #24Intermediary (Mediator)

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 device provides a safe and convenient extinguishing function, minimizing the risk of burns and fires by automatically cutting the cigarette at the end of smoking, enhancing user safety and satisfaction.

Implementation Method 1

a temperature sensor which is disposed to measure temperature in the vicinity of a downstream end of a smoking material portion constituting the inserted smoking article

Methodology Applied
Scientific EffectTemperature sensing:

Implementation Method 2

an exhaust fan configured to exhaust the filtered sidestream smoke

Methodology Applied
Scientific EffectMechanical force: Mechanical Force

Data Source

PatentEP4094595B1Sidestream smoke removal device and control method therefor
Publication Date: 2025.11.12 KT&G CO LTD
  • EP4094595B1 patent drawingFigure 1~2
  • EP4094595B1 patent drawingFigure 3
  • EP4094595B1 patent drawingFigure 4~5

AI summary

Provided herein are a sidestream smoke removal device and a control method thereof. The sidestream smoke removal device according to some embodiments of the present disclosure includes a housing in which a smoking space is formed, an article insertion portion which is disposed at one end of the housing and forms an opening for insertion of a smoking article into the smoking space, an ignition portion which is configured to ignite the smoking article inserted into the smoking space, a sidestream smoke processing portion which is configured to process sidestream smoke generated from the smoking article inserted into the smoking space, and a cutting portion. The cutting portion may provide a cutting function for the smoking article inserted into the smoking space and thus ensure a convenient, safe extinguishing function.