Brush and component for robot, and robot

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Cleaning robots often experience hair entanglement issues due to missing baffles, which can lead to increased motor load or even motor failure.

Innovation Solution

A robot-specific brush design featuring detachable baffles and a foolproof structure to ensure proper mounting of the baffles, preventing hair and other objects from entering the motor.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If detachable baffles are arranged on both sides of the main brush to prevent hair entanglement, then the reliability of the motor is improved, but the device complexity increases and users may neglect the baffles during mounting

Engineering Contradiction:
Improvemotor reliabilityVSAvoidbrush assembly complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The brush assembly is divided into modular components: the brush body, detachable baffles, and a foolproof structure with snap-fit mechanisms. This segmentation allows the baffles to be easily attached and removed while maintaining motor protection when properly assembled.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The foolproof structure incorporates snap-fit mechanisms and guide rails that automatically guide the baffles into the correct position during assembly. This self-service design reduces the risk of user error and ensures proper mounting without requiring complex instructions or tools.

Inventive Principle:
Principle #25Self-service

2Object-affected harmful factors

If detachable baffles are used to prevent hair from entering the motor, then motor protection is improved, but the ease of operation deteriorates due to potential mounting errors

Engineering Contradiction:
Improvehair intrusion into motorVSAvoidbaffle mounting ease
Core Design Contradiction:
Object-affected harmful factorsVSEase of operation

Solution Approach 1:

Guide rails and positioning features act as intermediaries between the baffle and the brush body, ensuring proper alignment and insertion. These intermediary elements prevent misalignment and ensure that the baffles are correctly positioned during assembly.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The snap-fit mechanisms automatically engage when the baffles are inserted, providing self-verifying assembly. The foolproof structure includes visual and tactile indicators that confirm proper mounting, eliminating the need for complex assembly procedures or specialized tools.

Inventive Principle:
Principle #25Self-service

3Device complexity

If the second mounting portion extends into the first side wall without foolproof structure, then the device complexity is reduced, but the reliability deteriorates due to missing baffle mounting

Engineering Contradiction:
Improvemounting structure complexityVSAvoidbaffle mounting reliability
Core Design Contradiction:
Device complexityVSReliability

Solution Approach 1:

The foolproof structure incorporates preventive measures that stop incorrect assembly before it can occur. The snap-fit mechanisms and guide rails are designed to physically prevent the brush from being assembled without the baffles in place, eliminating the risk of motor damage from the outset.

Inventive Principle:
Principle #9Preliminary anti-action

Solution Approach 2:

The assembly structure includes self-verifying features such as visual indicators and tactile feedback that automatically confirm proper baffle mounting. This self-service approach ensures that users can verify correct assembly without additional tools or complex procedures, maintaining reliability while minimizing complexity.

Inventive Principle:
Principle #25Self-service

Data Source

PatentEP3912540B1Brush and component for robot, and robot
Publication Date: 2025.06.04 BEIJING ROCKROBO TECH CO LTD
  • EP3912540B1 patent drawingFigure 1~2
  • EP3912540B1 patent drawingFigure 3
  • EP3912540B1 patent drawingFigure 4~5

AI summary

Disclosed are a brush and a component for a robot, and a robot. The brush comprises: a brush main body (1) comprising a rotating shaft (11) and bristles (12); a first end part (13) located at one end of the rotating shaft (11), the first end part (13) comprising an anti-neglected-mounting structure (131); a second end part (14) located at the other end of the rotating shaft (11); a first detachable baffle (2) detachably mounted on the first end part (13); and a second detachable baffle (3) detachably mounted on the second end part (14). By adding the detachable baffles (2,3), hairs on the brush of a cleaning robot can be effectively prevented from entering a motor, and by means of the ingenious design of the anti-neglected-mounting structure (131), a user can be effectively prevented from neglecting the mounting of the detachable baffles (2,3), such that the hair and other debris are prevented from entering a main brush driving motor and damaging the motor.