Mobile robot
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Solution Overview
Problem
Conventional mobile robots struggle with precise mop attachment, position maintenance, and effective floor cleaning due to lack of alignment marks, interference between rotating members, and insufficient frictional force, leading to inefficient cleaning, especially in corners and areas adjacent to walls.
Innovation Solution
A mobile robot design featuring a rotating plate with a rotating ball and guide ring to facilitate precise mop attachment, prevent interference, and enhance frictional force, allowing for accurate position correction and efficient cleaning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the robot cleaner moves by friction force of spin mops without alignment marks, then the structure is simple, but the mop attachment position is imprecise causing interference between rotating members
Solution Approach 1:
The patent introduces a guide hole as an intermediary element between the mop and the rotating member. The guide hole precisely guides the insertion position of the mop, ensuring accurate alignment without requiring complex alignment marks or adjustment mechanisms. This mediator component resolves the contradiction by providing precise positioning while maintaining structural simplicity.
2Device complexity
If the robot cleaner uses only friction force for movement, then the device structure is simple, but the frictional force is insufficient for effective mopping and driving
Solution Approach 1:
The patent changes the physical parameters of the mop by introducing a rubber layer with high friction coefficient. This parameter change in the material properties of the mop increases the frictional force between the mop and the floor, providing sufficient driving force for movement and effective mopping pressure, while maintaining the overall simplicity of the device structure.
3Ease of operation
If the spin mop operates without a mop attached, then the rotating member can rotate freely, but the floor is damaged by friction between the rotating plate and the floor
Solution Approach 1:
The patent introduces a protective layer as an intermediary between the rotating plate and the floor. This protective layer prevents direct contact between the rotating plate and the floor surface, eliminating floor damage while allowing the rotating member to rotate freely when no mop is attached. The mediator resolves the contradiction by protecting the floor without restricting operational freedom.
4Device complexity
If the robot cleaner proceeds only by friction force of spin mops, then the driving mechanism is simple, but straight travelling is difficult and cleaning in corners is ineffective
Solution Approach 1:
The patent changes the friction parameter by introducing a rubber layer with high friction coefficient on the mop. This increased friction provides better traction and control, enabling the robot to move in straight lines more effectively and navigate corners with improved precision. The parameter change resolves the contradiction by enhancing cleaning productivity while maintaining the simplicity of the friction-based driving mechanism.
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 solution enables visual and tactile recognition of mop position, prevents floor damage, ensures effective cleaning by maintaining mop position, and allows for straight-line travel and thorough cleaning, including corners and wall areas.
Implementation Method 1
A mobile robot design featuring a rotating plate with a rotating ball and guide ring to facilitate precise mop attachment, prevent interference, and enhance frictional force
Implementation Method 2
The robot cleaner according to the prior art moves as the first rotating member and the second rotating member rotate while the mop surfaces fixed to the first rotating member and the second rotating member are in contact with the floor
Data Source
AI summary
A mobile robot includes a body and a rotating plate rotatably installed on the body. A mop portion is attached to a lower surface of the rotating plate. And, a rotating ball that is vertically aligned with a rotating shaft of the rotating plate is rotatably installed on the rotating plate.