Rotating-Handle Cleaning Tool to Prevent Heating Element Damage

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Existing cleaning methods for aerosol-generating devices risk damaging the fragile heating element due to unintentional rotation during residue removal, particularly in devices with flat heating blades.

Innovation Solution

A cleaning tool with a rotatably attached handle and main body, featuring a bearing mechanism to prevent rotation of the main body during insertion, combined with elastic cleaning elements that scrape off residues without damaging the heating element.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If the cleaning tool allows free rotation of the handle during insertion, then the ease of operation is improved, but the heating element may be damaged due to unintentional rotation of the main body

Engineering Contradiction:
Improveease of operationVSAvoiddamage to heating element
Core Design Contradiction:
Ease of operationVSObject-affected harmful factors

Solution Approach 1:

The cleaning tool is divided into two independently rotatable segments: the handle and the main body. The handle can rotate freely for ease of insertion, while the main body remains rotationally constrained to prevent damage to the heating element. This segmentation allows each part to have different rotational characteristics.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

A bearing mechanism serves as an intermediary between the handle and main body. This bearing allows the handle to rotate independently while preventing rotational transmission to the main body, thus mediating between the need for easy operation and the need to prevent damage.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Stability of the object's composition

If the main body is firmly attached to the handle, then the structural stability is improved, but the handle cannot rotate independently which impairs ease of operation

Engineering Contradiction:
Improvestructural stabilityVSAvoidease of operation
Core Design Contradiction:
Stability of the object's compositionVSEase of operation

Solution Approach 1:

The connection between the handle and main body is made dynamic rather than static. The bearing mechanism allows relative rotation between the handle and main body during operation, providing the necessary flexibility for ease of insertion while maintaining structural integrity for stable cleaning action.

Inventive Principle:
Principle #15Dynamics

3Productivity

If the cleaning elements are rigid, then the cleaning effectiveness is improved, but the heating element may be damaged due to excessive force

Engineering Contradiction:
Improvecleaning effectivenessVSAvoiddamage to heating element
Core Design Contradiction:
ProductivityVSObject-affected harmful factors

Solution Approach 1:

The cleaning elements are designed with elastic properties, changing the mechanical parameter from rigid to flexible. This allows the cleaning elements to maintain sufficient cleaning effectiveness while adapting to the fragile heating element geometry and preventing damage through controlled deformation.

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The elastic cleaning elements provide beforehand cushioning by deforming under load to absorb excessive forces before they can damage the heating element. This protective cushioning effect occurs automatically during the cleaning process.

Inventive Principle:
Principle #11Beforehand cushioning (Prior cushioning)

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

Effectively cleans the heating element while preventing damage by allowing translational movement without rotational force, ensuring the heating element's integrity is maintained.

Implementation Method 1

The handle is rotatably attached to the main body of the cleaning tool, thereby preventing rotation of the main body during insertion into the heating chamber

Methodology Applied
Scientific EffectFriction: Friction

Data Source

PatentEP3823476B1Cleaning tool for heating element with rotation prevention
Publication Date: 2025.09.03 PHILIP MORRIS PRODUCTS SA
  • EP3823476B1 patent drawingFigure 1
  • EP3823476B1 patent drawingFigure 2
  • EP3823476B1 patent drawingFigure 3

AI summary

The present invention relates to a cleaning tool configured for cleaning a heating element (22) of an aerosol-generating device (20). The cleaning tool comprises a handle (10) and a main body (12). The main body comprises one or more cleaning elements (14). The handle is rotatably attached to the main body. The present invention further relates to an aerosol-generating device and a cleaning tool and a method for cleaning a heating element of an aerosol-generating device.