Robot Cleaner Sweep Module Layout for Corner and Wall Cleaning
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Solution Overview
Problem
Conventional robot cleaners face challenges in effectively cleaning corners and areas adjacent to walls due to their circular shape, which limits the width of the agitator, reduces friction between obstacles and spin mops, and restricts the cleaning area, making meticulous cleaning difficult.
Innovation Solution
The cleaner features a circular body with an integrated agitator and dust housing, where the agitator is positioned close to the center, and the rotation axes of the spin mops are eccentric, allowing a larger cleaning area and easier rotation by maximizing the width of the agitator and reducing friction with obstacles.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the cleaner body has a circular shape to enable easy rotation in place, then rotation ease is improved, but the width of the agitator is limited and cannot be maximized
Solution Approach 1:
The patent positions the storage space at the front side of the cleaner body, utilizing the longitudinal dimension rather than lateral expansion. This allows the agitator to maintain maximum width without increasing the overall footprint, resolving the conflict between rotation ease and cleaning area.
Solution Approach 2:
The cleaner body adopts an asymmetric layout where the storage space is positioned at the front side rather than symmetrically distributed. This asymmetric arrangement optimizes the agitator width while maintaining compact overall dimensions for easy rotation.
2Area of moving object
If the agitator width is maximized to increase cleaning area, then cleaning area is improved, but the cleaner body size increases making rotation difficult
Solution Approach 1:
The storage space is positioned at the front side of the cleaner body, utilizing the longitudinal dimension. This allows the agitator to extend laterally for maximum cleaning width without increasing the overall footprint, maintaining rotation ease.
Solution Approach 2:
The cleaner body is segmented into functional zones with the storage space separated at the front side. This segmentation allows the agitator to be positioned optimally for maximum width while the storage space occupies the front longitudinal space, preventing overall size increase.
3Device complexity
If the storage space is positioned at the rear side of the agitator, then the structure is simplified, but the cleaning area is reduced
Solution Approach 1:
The storage space is positioned at the front side of the cleaner body rather than the rear, utilizing the longitudinal dimension. This positioning maximizes the agitator width and cleaning area while maintaining structural simplicity through clear functional zoning.
4Ease of operation
If the cleaner uses random driving to navigate, then navigation simplicity is improved, but meticulous cleaning at corners and walls is impossible
Solution Approach 1:
The spin mops are positioned asymmetrically with eccentric rotation axes relative to the cleaner body center. This asymmetric positioning enables the cleaner to effectively clean corners and areas adjacent to walls while maintaining pattern driving capability for meticulous cleaning.
Data Source
AI summary
A mobile cleaner includes a body and a sweep module. The body has an installation space within the body and an insertion opening exposed to the underside of the body. The sweep module is detachably assembled to the installation space through the insertion hole. The sweep module includes a dust housing and an agitator. The dust housing includes a collection space for collecting the foreign material from the surface and a storage space where the foreign material is stored. The agitator is rotatably assembled to the dust housing and is configured to direct the foreign material from the surface to the collection space.