Smoking Chamber Pressing Structure for Uniform Consumable Heating

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Solution Overview

Problem

Existing smoking systems face inefficiencies in heat transfer and uniform heating of smokable substances, leading to uneven heating and inconsistent draw resistance, and often require complex structures that hinder ease of use and maintenance.

Innovation Solution

A smoking system design featuring a chamber with a holding unit that includes pressing and non-pressing units, a heating unit positioned on the outer surface of the pressing unit, and a cylindrical chamber with uniform thickness, ensuring efficient heat transfer and uniform heating through precise alignment and minimal gaps, along with a simplified structure for easy insertion and cleaning.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Loss of energy

If the heating unit is positioned close to the consumable, then heat transfer efficiency is improved, but the structure becomes more complex

Engineering Contradiction:
Improveheat transfer efficiencyVSAvoidstructure complexity
Core Design Contradiction:
Loss of energyVSDevice complexity

Solution Approach 1:

The pressing unit and heating unit are merged into a single integrated component where the heating unit is disposed on the outer surface of the pressing unit. This integration allows the consumable to be pressed and heated simultaneously at the same location, maximizing heat transfer efficiency while avoiding the need for separate pressing and heating mechanisms, thus reducing overall structural complexity.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The heating unit is nested on the outer surface of the pressing unit, creating a compact layered structure. This nesting arrangement allows the heating element to be positioned in immediate contact with the consumable while the pressing unit provides structural support and compression, achieving efficient heat transfer within a compact integrated design.

Inventive Principle:
Principle #7Nested doll (Nesting)

2Speed

If the chamber walls are made thin for quick heating, then heating speed is improved, but structural strength and heat distribution uniformity deteriorate

Engineering Contradiction:
Improveheating speedVSAvoidchamber structural strength
Core Design Contradiction:
SpeedVSStrength

Solution Approach 1:

The chamber wall thickness is optimized to a specific range (0.04-1.00 mm) that balances thermal conductivity and structural strength. This parameter optimization allows the thin walls to provide quick heating response while maintaining sufficient mechanical strength and uniform heat distribution across the chamber.

Inventive Principle:
Principle #35Parameter changes

3Ease of repair

If the holding unit has a simple structure for easy cleaning, then ease of maintenance is improved, but heating uniformity may deteriorate

Engineering Contradiction:
Improveease of cleaningVSAvoidheating uniformity
Core Design Contradiction:
Ease of repairVSManufacturing precision

Solution Approach 1:

The holding unit is segmented into distinct functional zones: a pressing unit with pressing surfaces for contact with the consumable, and non-pressing units that provide support without contact. This segmentation allows each zone to be optimized independently - the pressing surfaces can be smooth and simple for easy cleaning, while the heating unit disposed on the pressing unit ensures uniform heat distribution through direct contact.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The pressing unit serves multiple functions: it provides mechanical compression of the consumable, supports the heating unit on its outer surface, and maintains consistent positioning for uniform heating. This multi-functionality eliminates the need for separate complex positioning mechanisms, keeping the structure simple and easy to clean while ensuring heating uniformity.

Inventive Principle:
Principle #6Universality (Multi-functionality)

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 system achieves uniform heating of smokable substances, reduces uneven heating and draw resistance, simplifies structure for easy use and maintenance, and enhances heating efficiency while maintaining reliability and ease of assembly.

Implementation Method 1

heat from the heating unit can be transferred to the consumable efficiently

Methodology Applied
Scientific EffectThermal conduction: Conduction (thermal)

Implementation Method 2

heats and atomizes the smokable substance

Methodology Applied
Scientific EffectEvaporation: Evaporation

Data Source

PatentEP4111876B1Smoking system
Publication Date: 2026.02.11 JAPAN TOBACCO INC
  • EP4111876B1 patent drawingFigure 1
  • EP4111876B1 patent drawingFigure 2
  • EP4111876B1 patent drawingFigure 3

AI summary

The present invention provides a smoking system comprising a consumable containing a smokable substance and a device that heats and atomizes the smokable substance. The device includes a chamber that receives the consumable and a heating unit that heats the consumable received into the chamber. The chamber includes an opening through which the consumable is inserted and a holding unit that holds the consumable. The holding unit includes a pressing unit that presses a part of the consumable. The pressing unit has an outer surface and a flat inner surface. The consumable includes a smokable substance and a filter segment. The filter segment includes an inhalation filter and a center hole segment. The center hole segment is positioned closer to the smokable substance than the inhalation filter.