Granular Aerosol Product Structure Without a Multi-Hole Fixed Section

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Solution Overview

Problem

Existing granular aerosol generating products face issues with loose granules flowing during storage and the need for a multi-hole fixed section, which increases manufacturing costs and operational inconvenience.

Innovation Solution

Aerosol generating product design without a multi-hole fixed section, using a breakable plugging part and inner sleeve with a bottom through-hole or inner-diameter contraction to constrain granules, combined with a heating element tip to prevent backflow, and a filtering section to form a cavity for aerosol formation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Stability of the object's composition

If a multi-hole fixed section is used to constrain granules, then granule flow is prevented, but manufacturing cost and device complexity increase

Engineering Contradiction:
Improvegranule constraintVSAvoidmulti-hole fixed section
Core Design Contradiction:
Stability of the object's compositionVSDevice complexity

Solution Approach 1:

The invention removes the multi-hole fixed section from the product structure entirely. Instead, granule constraint is achieved through the synergistic interaction between the breakable plugging part and the heating element tip, which together form a retention mechanism without requiring a separate multi-hole fixed section component.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The invention combines the granule retention function with the heating element assembly. The heating element tip works in conjunction with the breakable plugging part to create a unified constraint mechanism, eliminating the need for a separate multi-hole fixed section and reducing overall device complexity.

Inventive Principle:
Principle #5Merging (Combining)

2Stability of the object's composition

If a multi-hole fixed section is used to constrain granules, then granule flow is prevented, but manufacturing cost increases

Engineering Contradiction:
Improvegranule constraintVSAvoidmanufacturing cost
Core Design Contradiction:
Stability of the object's compositionVSEase of manufacture

Solution Approach 1:

The invention eliminates the multi-hole fixed section component, thereby removing the associated manufacturing costs. The granule constraint function is achieved through simpler, more cost-effective components: the breakable plugging part and the heating element tip working together.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The breakable plugging part is designed to be discarded after use - it breaks during the heating process to allow granule flow. This single-use component approach simplifies manufacturing compared to creating a durable multi-hole fixed section, as the plugging part can be produced more simply and disposed of after its function is complete.

Inventive Principle:
Principle #34Discarding and recovering

3Stability of the object's composition

If granules are constrained at both ends, then granule flow is prevented, but the structure becomes more complex

Engineering Contradiction:
Improvegranule constraintVSAvoiddual-end constraint structure
Core Design Contradiction:
Stability of the object's compositionVSDevice complexity

Solution Approach 1:

The invention removes the downstream multi-hole fixed section while maintaining dual-end constraint through alternative means. The upstream breakable plugging part and the heating element tip together provide the necessary constraint at both ends of the granule column, eliminating the need for the complex downstream fixed section.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The constraint mechanism is made dynamic through the breakable plugging part. During storage and insertion, the plugging part remains intact to constrain granules. During heating, it breaks to allow controlled granule flow. This dynamic behavior replaces the static multi-hole fixed section structure.

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

Simplifies production, prevents granule flow, reduces manufacturing costs, and maintains efficient aerosol generation by constraining granules at both ends, enhancing production efficiency and operational convenience.

Implementation Method 1

the heating appliance has a central heating element to release gaseous aroma components by heating granules

Methodology Applied
Scientific EffectJoule heating: Joule Heating

Implementation Method 2

gaseous aroma components in the cavity section 10 are condensed into visible aerosol by cold air

Methodology Applied
Scientific EffectCondensation: Condensation

Data Source

PatentEP4278912B1Granular aerosol generating product without using a multi-hole fixed section
Publication Date: 2026.01.28 CHINA TOBACCO YUNNAN IND
  • EP4278912B1 patent drawingFigure 1~2
  • EP4278912B1 patent drawingFigure 3~4
  • EP4278912B1 patent drawingFigure 5~7

AI summary

The present disclosure discloses a granular aerosol generating product without using a multi-hole firmware section, including an outer sleeve (2), a sealing film (1) at the distal lip end plugging the outer sleeve (2), the product also includes an inner sleeve (3) inserted into the outer sleeve (2), the bottom of the inner sleeve (3) is sealed by a breakable plugging part (5), the downstream of the breakable plugging part (5) is a granule filling section filled with aerosol source-material granule (9), a filtering section (4) is provided in the downstream of the granule filling section, and there is a distance between the breakable plugging part (5) and the sealing film (1) in the axial direction to form an original cavity section (8). The present disclosure also discloses a set combining an aerosol generating appliance with a barb on a heating element with the above-mentioned granular aerosol generating product without using a multi-hole firmware section.