Cleaning robot system

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

The connecting structure between the mopping disk and the movement mechanism in cleaning robots is complicated, making disassembly inconvenient.

Innovation Solution

A cleaning robot system with a detachable connection between the mopping disk and the movement mechanism using a first magnetic attraction assembly, where the cleaning element is provided with a first magnetic part and the base station has an electromagnet, allowing for automatic disassembly and separation of the cleaning element from the movement mechanism.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If a connecting structure is provided between the mopping disk and the movement mechanism to enable lifting and lowering, then the cleaning element can be lifted during non-mopping operation, but the connecting structure becomes complicated and disassembly becomes inconvenient

Engineering Contradiction:
ImproveLifting and lowering of cleaning elementVSAvoidConnecting structure complexity
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The connecting structure is divided into two detachable parts: a first magnetic attraction assembly on the movement mechanism and a first magnetic part on the cleaning element. This segmentation allows the cleaning element to be easily detached from the movement mechanism while maintaining the lifting function during operation.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The traditional mechanical connecting structure is replaced with a magnetic attraction system. The first magnetic attraction assembly and first magnetic part create a magnetic connection that enables both attachment and easy detachment, eliminating complex mechanical fasteners while maintaining the lifting and lowering functionality.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

2Reliability

If a complicated connecting structure is used between the mopping disk and the movement mechanism, then the cleaning element can be securely attached, but disassembly becomes inconvenient and time-consuming

Engineering Contradiction:
ImproveAttachment reliabilityVSAvoidDisassembly time
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The magnetic attraction system replaces mechanical fastening mechanisms, providing reliable attachment through magnetic force while enabling quick release. The cleaning element can be securely held during operation but easily detached by overcoming the magnetic force, significantly reducing disassembly time.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The magnetic attraction force can be dynamically adjusted by controlling the electromagnet's power consumption. During operation, higher power consumption provides strong attachment reliability. During disassembly, reduced power consumption allows easy separation, thus solving both attachment reliability and disassembly time requirements.

Inventive Principle:
Principle #35Parameter changes

3Stability of the object's composition

If the cleaning element is permanently connected to the movement mechanism, then structural stability is maintained, but maintenance and cleaning become inconvenient

Engineering Contradiction:
ImproveStructural stabilityVSAvoidMaintenance convenience
Core Design Contradiction:
Stability of the object's compositionVSEase of repair

Solution Approach 1:

The system is segmented into detachable components: the cleaning element with first magnetic part and the movement mechanism with first magnetic attraction assembly. This allows the cleaning element to be easily removed for maintenance and cleaning while maintaining structural stability during operation through magnetic attraction.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The connecting structure transitions from a static permanent connection to a dynamic detachable connection. The magnetic attraction assembly can engage and disengage the magnetic parts, allowing the system to switch between stable operation mode and maintenance mode, improving both structural stability and ease of repair.

Inventive Principle:
Principle #15Dynamics

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

Enables quick and convenient separation of the cleaning element and movement mechanism for maintenance, freeing user hands and improving the operation experience.

Implementation Method 1

the base station is provided with an electromagnet, wherein a magnetic attraction force between the energized electromagnet and the first magnetic part is greater than a difference between a magnetic attraction force of the first magnetic attraction assembly and a gravitational force of the cleaning element

Methodology Applied
Scientific EffectMagnetic attraction: Electromagnet

Implementation Method 2

the cleaning element and the movement mechanism being detachably connected by means of a first magnetic attraction assembly, the cleaning element being provided with a first magnetic part

Methodology Applied
Scientific EffectMagnetic attraction: Magnetism

Data Source

PatentEP4684716A1Cleaning robot system
Publication Date: 2026.01.28 BEIJING ROCKROBO TECH CO LTD
  • EP4684716A1 patent drawingFigure 1~2
  • EP4684716A1 patent drawingFigure 3~4
  • EP4684716A1 patent drawingFigure 5

AI summary

The present application provides a cleaning robot system, which includes a self-moving cleaning device and a base station. The self-moving cleaning device includes a machine main body, a cleaning element and a movement mechanism. The movement mechanism is connected to the machine main body and the cleaning element to drive the cleaning element to be lifted and lowered relative to the machine main body. The cleaning element and the movement mechanism are detachably connected by means of a first magnetic attraction assembly. The cleaning element is also provided with a first magnetic part. The base station is provided with an electromagnet. A magnetic attraction force between the energized electromagnet and the first magnetic part is greater than a difference between a magnetic attraction force of the first magnetic attraction assembly and a gravitational force of the cleaning element. In this way, automatic disassembly and separation of the cleaning element from the movement mechanism can be achieved, and the whole process eliminates the need for manual operation by a user, thereby improving the operation experience in disassembling the cleaning element.