Rotating Heating Element for Low-Temperature Cigarette Adhesion

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Solution Overview

Problem

Existing low-temperature cigarette electric heating devices experience adhesion and compaction issues between the heating element and tobacco, leading to the risk of tobacco material falling off during extraction.

Innovation Solution

A smoking device design featuring a housing with a receiving part for the low-temperature cigarette and a heating part that rotates relative to the cigarette when extracted, utilizing a motor and transmission mechanism to separate the heating element from the tobacco, reducing adhesion and compaction through controlled rotation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the heating device is inserted into the low-temperature cigarette for heating, then the nicotine is released in the form of smoke, but the heating device and the tobacco produce adhesion and compaction, causing the tobacco to fall off and stay in the heating device

Engineering Contradiction:
Improveheating functionVSAvoidextraction difficulty
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The heating part is designed to rotate relative to the tobacco substance during extraction. This dynamic motion breaks the adhesion and compaction between the heating element and tobacco, allowing the tobacco to be easily separated and removed from the heating device after use.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The rotation of the heating part creates mechanical vibration and movement that disrupts the adhesion bonds formed during heating. This vibration effect prevents the tobacco from firmly sticking to the heating element, facilitating easy extraction without leaving residue.

Inventive Principle:
Principle #18Mechanical vibration

2Object-affected harmful factors

If the heating temperature is lower than the burning temperature, then the harmful substances are reduced, but the adhesion between heating part and tobacco increases

Engineering Contradiction:
Improveharmful substancesVSAvoidtobacco adhesion
Core Design Contradiction:
Object-affected harmful factorsVSLoss of substance

Solution Approach 1:

By introducing rotational motion to the heating part during extraction, the patent dynamically breaks the adhesion that forms at lower temperatures. This mechanical movement compensates for the increased stickiness that occurs when heating below combustion temperature, ensuring clean separation without tobacco residue.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The patent converts the harmful adhesion effect (tobacco sticking to the heating element) into a beneficial separation mechanism. By rotating the heating part, the adhesion is deliberately broken and transformed into easy-to-remove loose material that can be cleanly extracted, turning a problem into a solution.

Inventive Principle:
Principle #22Blessing in disguise (Convert harm into benefit)

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 effectively reduces the risk of tobacco material falling and facilitates easy separation of the heating element from the tobacco, enhancing user experience and device functionality.

Implementation Method 1

the tobacco of low-temperature cigarettes does not burn itself, but is heated by a heater, so that the nicotine therein is released in the form of smoke for smoking

Methodology Applied
Scientific EffectHeating: Heating

Implementation Method 2

the heating part is rotated to make the heating part rotate relative to the low-temperature cigarette, such that the heating part is separated from tobacco substances in the low-temperature cigarette

Methodology Applied
Scientific EffectFriction: Friction

Data Source

PatentEP3967167B1Smoking device
Publication Date: 2024.12.11 HUBEI CHINA TOBACCO INDUSTRY CO LTD
  • EP3967167B1 patent drawingFigure 1~2
  • EP3967167B1 patent drawingFigure 3~4
  • EP3967167B1 patent drawingFigure 5

AI summary

A smoking device includes a housing (1), a receiving part (3) used for accommodating a low-temperature cigarette (2), and a heating part (4) used for heating a low-temperature cigarette (2). The receiving part (3) is provided in the housing (1), and is provided with a cavity for accommodating the low-temperature cigarette (2) inside the receiving part (3); a top of the heating part (4) penetrates a bottom of the receiving part (3) and extends inside the receiving part; wherein, when the low-temperature cigarette (2) needs to be heated, the heating part (4) is inserted inside the low-temperature cigarette (2) to heat the low-temperature cigarette (2); and when the low-temperature cigarette (2) needs to be extracted, the heating part (4) is rotated to make the heating part (4) rotate relative to the low-temperature cigarette (2), such that the heating part (4) is separated from tobacco substances (21) in the low-temperature cigarette (2). The device can reduce the adhesion and/or hardening generated between the tobacco substances (21) in the low-temperature cigarette (2) and the heating part (4), can reduce the risk of falling of the tobacco substances (21), and make it easier to separate the heating part (4) from the tobacco substances (21).