Aerosol Generation Device Flexible Cover for Protected Input Access

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Solution Overview

Problem

Aerosol generation devices face issues with input elements that are either prone to unintentional actuation, mechanical wear, and exposure to harmful external influences, or require inconvenient detachment of protective covers for access.

Innovation Solution

An aerosol generation device with a detachable cover featuring flexible regions that can be elastically deformed to actuate operation interface portions, providing protection while allowing convenient access without moving the cover.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If input elements are provided on the exterior surface of the device housing, then they are easily accessible to the user, but they are prone to unintentional actuation, mechanical wear and tear, and ingress of liquids and particles

Engineering Contradiction:
ImproveAccessibility of input elementsVSAvoidProtection against unintentional actuation and environmental damage
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The operation interface portion is nested within a cavity formed in the cover element. The cover element acts as a protective enclosure that houses the input elements while maintaining external accessibility. This nesting arrangement allows the interface to be both protected from environmental factors and easily accessible to users.

Inventive Principle:
Principle #7Nested doll (Nesting)

Solution Approach 2:

The cover element incorporates flexible regions that can be elastically deformed when pressed by the user. These flexible portions transmit the pressing force to the operation interface portion without requiring the cover to be removed or opened, enabling protected yet accessible operation.

Inventive Principle:
Principle #30Flexible shells and thin films

2Reliability

If a cover panel is used to cover the input elements, then protection against outside influences is improved, but access to the input elements becomes inconvenient and wear and tear on attaching means increases

Engineering Contradiction:
ImproveProtection of input elementsVSAvoidConvenience of access to input elements
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The cover element is designed with flexible regions that allow it to be locally deformed during normal operation. Users can press on the flexible cover portions to actuate the underlying input elements without needing to detach or move the cover panel, maintaining both protection and convenience.

Inventive Principle:
Principle #30Flexible shells and thin films

Solution Approach 2:

The cover element transitions from a static protective barrier to a dynamic interface that can be temporarily deformed during use. The flexible regions allow the cover to adapt its shape in response to user input while returning to its original protective configuration afterward.

Inventive Principle:
Principle #15Dynamics

3Reliability

If the cover element is made fully rigid, then protection is maximized, but user input by pressing becomes ineffective

Engineering Contradiction:
ImproveProtective coverageVSAvoidResponsiveness to user pressing input
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The cover element exhibits spatially varying mechanical properties: rigid portions provide maximum protection in areas not subject to user input, while flexible regions are strategically positioned at locations corresponding to input elements. This local differentiation allows the same structure to provide both protection and operational responsiveness.

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The cover element is divided into functionally distinct regions: rigid protective portions and flexible input-transmission portions. This segmentation allows each region to optimize its performance for its specific function while working together as an integrated protective interface.

Inventive Principle:
Principle #1Segmentation

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 ensures protected and convenient access to operation interface portions, reducing wear and tear, and preventing unintentional actuation, while maintaining device functionality and safety.

Implementation Method 1

The cover element (300) comprises one or more flexible regions (300a) that can be elastically deformed when pressed by a user of the aerosol generation device (100) for actuating a corresponding operation interface portion (220)

Methodology Applied
Scientific EffectElastic deformation: Elasticity

Data Source

PatentEP4228451B1Aerosol generation device with flexible cover
Publication Date: 2025.08.27 JT INTERNATIONAL SA
  • EP4228451B1 patent drawingFigure 1A~1B
  • EP4228451B1 patent drawingFigure 2A~2B
  • EP4228451B1 patent drawingFigure 3A~3B

AI summary

The invention relates to an aerosol generation device, in particular an aerosol generation device comprising a cover with one or more flexible regions that can be deformed when pressed. In a first aspect the invention is an aerosol generation device that comprises a main body defined by a main housing comprising an operation interface portion that is provided at at least a portion of the exterior surface of the main housing and that can be actuated for operating the aerosol generation device, and a cover element that is detachably attached or connected to the main housing. At least a portion of the operation interface portion is arranged between the exterior surface of the main housing and the cover element, and the cover element comprises one or more flexible regions that can be elastically deformed for actuating the operation interface portion.