Cleaning system comprising a vacuum cleaner and a docking station capable of collecting waste from the vacuum cleaner

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Solution Overview

Problem

Existing vacuum cleaners face issues with air flow penetration during waste emptying, leading to friction and potential damage to sealing devices, making the insertion process difficult and reducing the effectiveness of the docking station.

Innovation Solution

A cleaning system with a docking station featuring movable half-shells that form a sealed receptacle, minimizing friction during container insertion and ensuring optimal cooperation with sealing devices for efficient waste transfer.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a sealing device is equipped to prevent air flow penetration during waste emptying, then sealing effectiveness is improved, but friction during insertion increases and the sealing device integrity deteriorates

Engineering Contradiction:
Improvesealing effectivenessVSAvoidinsertion ease
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The sealing device is designed to be movable rather than fixed, allowing it to dynamically adapt between a retracted state during insertion (minimizing friction) and an engaged state during emptying (maximizing sealing). The sealing element can move along the container or receptacle surface, transitioning from a non-interfering position to a sealing position that prevents air flow penetration.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The sealing system is divided into separate functional components: a movable sealing element, a support structure, and an actuation mechanism. This segmentation allows the sealing function to be isolated and optimized independently, enabling the sealing surface to move or flex to accommodate insertion while maintaining sealing integrity during operation.

Inventive Principle:
Principle #1Segmentation

2Productivity

If a sealing device is equipped to ensure effective suction during waste emptying, then waste transfer effectiveness is improved, but the sealing device is harmed by repeated friction

Engineering Contradiction:
Improvewaste transfer effectivenessVSAvoidsealing device integrity
Core Design Contradiction:
ProductivityVSReliability

Solution Approach 1:

An intermediary mechanism is introduced between the sealing device and the insertion motion, such as a flexible seal that can deform or a movable barrier that guides the container. This intermediary absorbs the friction and mechanical stress during insertion, protecting the sealing device from damage while maintaining the necessary seal for effective waste transfer.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The sealing device parameters (such as material hardness, surface friction coefficient, or geometric configuration) are optimized to reduce wear during insertion while maintaining sealing effectiveness. The sealing element may use materials with low friction coefficients or self-lubricating properties, and its engagement timing is controlled to minimize contact during insertion while maximizing contact during the emptying operation.

Inventive Principle:
Principle #35Parameter changes

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 ensures easy and reliable waste container insertion, maintains sealing integrity, and facilitates efficient waste transfer to the docking station, enhancing the overall reliability and efficiency of the cleaning process.

Implementation Method 1

a suction motor housed in the main body, the suction motor being configured to generate an air flow through the suction nozzle and the waste separation and collection device

Methodology Applied
Scientific EffectAir flow:

Implementation Method 2

a suction device configured to generate a vacuum in the receiving housing and to convey waste, coming from the waste collection container, into the collection device

Methodology Applied
Scientific EffectVacuum:

Data Source

PatentEP4627985A1Cleaning system comprising a vacuum cleaner and a docking station capable of collecting waste from the vacuum cleaner
Publication Date: 2025.10.08 SEB SA
  • EP4627985A1 patent drawingFigure 1~2
  • EP4627985A1 patent drawingFigure 3~4
  • EP4627985A1 patent drawingFigure 5~6

AI summary

The cleaning system comprises a vacuum cleaner (2) comprising a waste collection container (12); a docking station comprising a drain receptacle (25) configured to house the waste collection container (12) and comprising first and second half-shells (27, 28) mounted movably relative to each other between an open position and a closed position. The docking station comprises a first sealing device (34) attached to the first half-shell (27) and a second sealing device (35) attached to the second half-shell (28), the first and second sealing devices (34, 35) being configured to cooperate in a sealed manner with the waste collection container (12) when the first and second half-shells (27, 28) occupy the closed position.