Multi-part Heated Aerosol System Segmentation

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Solution Overview

Problem

Existing handheld electrically operated aerosol-generating systems are costly to produce due to the manufacturing expenses of the wick and coil assembly, as well as the mouthpiece portion, necessitating a more economical design.

Innovation Solution

A multi-part aerosol-generating system with a separate, one-time use aerosol substrate-containing part and a reusable heating element and transfer element, where the aerosol substrate reservoir is not refillable, allowing for simplified manufacturing and optional aesthetic customization through interchangeable covers.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If a traditional cartomizer design with integrated wick, coil, and mouthpiece is used, then the aerosol generation function is complete, but the manufacturing cost increases

Engineering Contradiction:
Improvemanufacturing costVSAvoidcomponent integration
Core Design Contradiction:
Ease of manufactureVSDevice complexity

Solution Approach 1:

The system is divided into three separate parts: a reusable body portion containing control electronics and power supply, a reusable cartridge portion containing the heating element and transfer element, and a disposable reservoir portion containing the aerosol-generating substrate. This segmentation allows the expensive heating components to be reused while only the consumable substrate is discarded, reducing overall manufacturing costs.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The heating element and transfer element are extracted from the disposable cartomizer and placed in a reusable cartridge portion. This extraction eliminates the need to manufacture expensive heating components with each disposable unit, significantly reducing per-unit manufacturing costs while maintaining full aerosol generation functionality.

Inventive Principle:
Principle #2Taking out (Extraction)

2Duration of action of moving object

If the heating element and transfer element are integrated with the consumable substrate, then the aerosol generation is functional, but the frequency of replacing heating components increases

Engineering Contradiction:
Improveusage duration of heating elementVSAvoidmanufacturing frequency
Core Design Contradiction:
Duration of action of moving objectVSEase of manufacture

Solution Approach 1:

The heating element and transfer element are separated from the consumable substrate and placed in a reusable cartridge portion that can be used multiple times. Only the reservoir portion containing the aerosol-generating substrate is disposable, extending the lifecycle of the expensive heating components and reducing replacement frequency.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Only the reservoir portion containing the consumable substrate is designed as a disposable component, while the heating element and transfer element are preserved in a reusable cartridge. This selective disposability minimizes waste of expensive components while maintaining convenience for the user.

Inventive Principle:
Principle #27Cheap short-living objects (Disposable)

3Ease of manufacture

If the mouthpiece is integrated with the liquid reservoir, then the system is compact, but the manufacturing cost increases

Engineering Contradiction:
Improvemanufacturing costVSAvoidsystem compactness
Core Design Contradiction:
Ease of manufactureVSLength of moving object

Solution Approach 1:

The system separates the mouthpiece function into the reusable body portion from the disposable reservoir portion. This allows the reservoir to be manufactured as a simple, low-cost component without integrated mouthpiece features, reducing manufacturing complexity and cost while maintaining system functionality.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The reusable body portion serves multiple functions including housing the power supply, control electronics, and mouthpiece. This multi-functionality allows the disposable reservoir to be simplified to only contain the substrate storage function, reducing its manufacturing cost.

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

This design reduces production costs by eliminating the need to replace the heating element and transfer element with each aerosol substrate depletion and allows for standardized manufacturing with customizable aesthetics, while maintaining a compact, handheld form.

Implementation Method 1

electrically operated vaporizer

Methodology Applied
Scientific EffectJoule heating: Joule Heating

Implementation Method 2

heating element is operably coupled to the power supply when the second part is connected with the first part

Methodology Applied
Scientific EffectEvaporation: Evaporation

Implementation Method 3

liquid transfer element

Methodology Applied
Scientific EffectCapillary action: Capillary Action

Data Source

PatentEP3397095B1Multi-part electrically heated aerosol-generating system
Publication Date: 2020.11.04 PHILIP MORRIS PRODUCTS SA
  • EP3397095B1 patent drawingFigure 1A
  • EP3397095B1 patent drawingFigure 1B~1C
  • EP3397095B1 patent drawingFigure 2A~2B

AI summary

A multi-part aerosol-generating assembly system (100) has a mouth end and a distal end, and includes a first part (10) having a housing (130) and a power supply (1 10) disposed in the housing (130). The system also includes a second part (20) releasably connectable with the first part (10). The second part (20) includes a heating element (220) and a liquid transfer element (210). The heating element (220) is operably coupled to the power supply (1 10) when the second part (20) is connected with the first part (10). The system further includes a third part (30) releasably connectable with the second part (20). The third part (30) includes a reservoir (200) containing a liquid aerosol generating substrate. The liquid aerosol generating substrate is in fluid communication with the liquid transfer element (210) when the third part (30) is connected with the second part (20). The system further includes a cover (40) disposable over the third part (30). The cover (40) is releasably securable in a position relative to the third part (30). The cover (40) defines the mouth end of the system.