Cleaning system, cleaning device and control method therefor

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Solution Overview

Problem

Existing floor scrubbers fail to effectively clean the inner surface of the roller brush cover during the self-cleaning process, leading to poor user experience and manual cleaning requirements.

Innovation Solution

A cleaning device with a roller brush cover that can move between two positions relative to the floor brush housing, allowing for contact with the roller brush to clean the inner wall of the cover, utilizing a guide mechanism and liquid outlet assembly to facilitate self-cleaning.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Extent of automation

If the roller brush cover is kept stationary during self-cleaning, then the structure is simple and easy to manufacture, but the inner surface of the roller brush cover cannot be cleaned automatically

Engineering Contradiction:
Improveautomation of roller brush cover cleaningVSAvoidcomplexity of roller brush cover mechanism
Core Design Contradiction:
Extent of automationVSDevice complexity

Solution Approach 1:

The roller brush cover is designed to move between a first position (during normal operation) and a second position (during self-cleaning) along an arc-shaped trajectory. This dynamic positioning enables the cover to contact the roller brush for cleaning purposes, achieving automatic cleaning functionality without requiring complex additional mechanisms.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The system utilizes the roller brush's own rotation to clean the inner surface of the roller brush cover. During self-cleaning mode, the roller brush rotates while the cover is positioned to contact it, allowing the brush to clean itself and the cover simultaneously, eliminating the need for separate cleaning mechanisms.

Inventive Principle:
Principle #25Self-service

2Reliability

If the roller brush cover contacts the roller brush during operation, then cleaning effectiveness is improved, but friction and energy loss increase

Engineering Contradiction:
Improvecleaning effectiveness of roller brush coverVSAvoidenergy loss from friction during rotation
Core Design Contradiction:
ReliabilityVSLoss of energy

Solution Approach 1:

The roller brush cover dynamically adjusts its position based on operational mode. During normal cleaning operation, the cover is in the first position with minimal contact to reduce friction. During self-cleaning mode, it transitions to the second position to maximize contact and cleaning effectiveness, optimizing performance for each specific function.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The system alternates between different operational states: normal cleaning mode with minimal contact and self-cleaning mode with increased contact. This periodic switching between states allows the system to achieve thorough cleaning when needed while minimizing energy loss during primary operation.

Inventive Principle:
Principle #19Periodic action

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

Automates the cleaning of the roller brush cover, eliminating the need for manual cleaning and improving user experience by ensuring the inner surface is kept clean during the self-cleaning process.

Implementation Method 1

the roller brush cover and the floor brush housing enclose a roller brush cavity for fitting with the roller brush, and the roller brush cover is configured to be operable in a first position or a second position relative to the floor brush housing; in the first position, there is a first contact area between the roller brush cover and the roller brush; in the second position, there is a second contact area between the roller brush cover and the roller brush

Methodology Applied
Scientific EffectFriction: Friction

Data Source

PatentEP4410172A1Cleaning system, cleaning device and control method therefor
Publication Date: 2024.08.07 TIANKE INTELLIGENT TECH CO LTD
  • EP4410172A1 patent drawingFigure 1~2
  • EP4410172A1 patent drawingFigure 3~5
  • EP4410172A1 patent drawingFigure 6~8

AI summary

The present disclosure relates to a cleaning system, a cleaning device and a control method therefor, wherein a floor brush assembly includes a roller brush housing, a roller brush, a roller brush cover; the roller brush cover and the floor brush housing enclose a roller brush cavity for fitting with the roller brush, and the roller brush cover is configured to be operable in a first position or a second position relative to the floor brush housing; in the first position, there is a first contact area between the roller brush cover and the roller brush; in the second position, there is a second contact area between the roller brush cover and the roller brush; wherein, the first contact area is greater than or equal to zero, but less than the second contact area. The present disclosure enables the inner wall of the roller brush cover to be cleaned by the roller brush, so that the automation level of the cleaning device is improved, and the user experience is optimized.