Automatic cleaner
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Solution Overview
Problem
Existing automatic cleaners face challenges in effectively navigating surfaces with varying textures and obstacles, such as carpets and door sills, due to limited traction and adaptability of their wheel designs.
Innovation Solution
The automatic cleaner employs a wheel assembly with a first wheel and a second wheel, where the second wheel is deformable and features contact protrusions, allowing it to adapt to different surfaces and maintain contact to prevent sliding, while the first wheel provides rotational power through a driving part and transmission system.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a rigid wheel design is used, then the structural strength is maintained, but the ability to adapt to different surfaces and prevent sliding deteriorates
Solution Approach 1:
The wheel is designed with a deformable structure that can dynamically change its shape based on the surface it contacts. The wheel includes a body with contact protrusions that can elastically deform to conform to different surface textures, transitioning from a rigid state for structural strength to a deformable state for surface adaptation.
Solution Approach 2:
The wheel's physical parameters, specifically its shape and contact surface characteristics, are changed based on the operating conditions. The contact protrusions can change their configuration and deformation level according to the surface type, allowing the wheel to optimize its properties for different cleaning surfaces.
2Adaptability or versatility
If the wheel is made deformable to adapt to surfaces, then the surface adaptability is improved, but the structural strength deteriorates
Solution Approach 1:
The wheel is constructed using composite material structure combining rigid and flexible elements. The body includes contact protrusions made of materials or structures that provide both deformability for surface adaptation and sufficient structural strength to withstand operational loads and obstacles.
Solution Approach 2:
The wheel structure is segmented into different functional zones: a rigid main body for structural strength and deformable contact protrusions for surface adaptation. This segmentation allows different parts of the wheel to serve different functions - the body provides strength while the protrusions provide adaptability.
3Reliability
If contact protrusions are added to the wheel, then the ability to prevent sliding on diverse surfaces is improved, but the device complexity increases
Solution Approach 1:
Contact protrusions are added only to specific locations on the wheel - the outer circumferential surface that contacts the cleaning surface. This local modification provides sliding prevention where it is most needed without unnecessarily complicating the entire wheel structure. The protrusions are strategically positioned to maximize traction while minimizing structural complexity.
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
This design enhances the cleaner's ability to move smoothly and accurately on diverse surfaces without sliding, minimizing damage and ensuring precise navigation to charging devices.
Implementation Method 1
a housing (200) in which the driving part (150) is accommodated; and an elastic member to support the housing (200) and store elastic energy to move the housing (200) vertically
Implementation Method 2
A portion or all of the plurality of wheels may be formed of a rubber material to increase a friction force with respect to the surface
Data Source
AI summary
An automatic cleaner is provided. The automatic cleaner may include a main body, and a wheel assembly disposed in the main body to allow the main body to move. The wheel assembly may include a drive, a first wheel rotated by a power of the drive, and a second wheel rotated by the power of the drive. The second wheel may include a plurality of contact protrusions on an outer circumferential surface thereof.