Robot cleaner
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Solution Overview
Problem
Existing robot cleaners face challenges with suction force reduction, brush roller separation issues, increased collision probability of the suction unit with obstacles, blind spots in sensing, and inconvenient HEPA filter replacement.
Innovation Solution
A robot cleaner design featuring a suction unit protruding from the body with integrated sensing parts, a bumper switch for collision detection, and a dust container system with improved assembly convenience and filter accessibility, including a cyclone unit for efficient dust separation and a hinge-coupled dust container cover for easy maintenance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If the suction unit is disposed to protrude from the cleaner body, then the suction force is improved, but the probability of collision with obstacles increases
Solution Approach 1:
The suction unit is designed to be movable relative to the cleaner body, capable of protruding forward during cleaning operations and retracting when obstacles are detected by the sensing unit. This dynamic configuration allows the suction unit to maintain an optimal position for suction performance while automatically avoiding collisions, thus resolving the contradiction between improved suction force and reduced collision probability
2Power
If the suction unit is disposed to protrude from the cleaner body, then the suction force is improved, but the suction unit is located in a blind spot of the sensing unit
Solution Approach 1:
An additional sensing unit is installed on the suction unit itself or in proximity to it, serving as an intermediary detection element that specifically monitors the area in front of the protruding suction unit. This additional sensor eliminates the blind spot created by the protruding configuration, allowing the system to maintain both improved suction performance through protrusion and complete obstacle detection coverage
3Volume of stationary object
If the dust container capacity is increased, then the dust collection capability is improved, but the assembly convenience is reduced
Solution Approach 1:
The dust container is designed as a separable component that can be easily detached from the cleaner body. The container includes a release mechanism that allows users to quickly remove and reattach the dust container without complex assembly procedures. This segmentation approach enables the dust container to have increased capacity while maintaining ease of assembly and disassembly for routine maintenance
4Reliability
If the HEPA filter is integrated into the cleaner body, then the filtration function is improved, but the filter replacement convenience is reduced
Solution Approach 1:
The HEPA filter is extracted from the cleaner body and relocated to the dust container. This allows the filter to be easily accessed and replaced by simply removing the dust container, which can be quickly detached using the release mechanism. The filtration function remains integrated with the dust container system, ensuring that filter replacement is as convenient as dust container maintenance while maintaining effective filtration performance
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
Enhanced obstacle avoidance performance, improved suction efficiency, reduced risk of collisions, and simplified maintenance and assembly processes, along with efficient dust collection and filter replacement.
Implementation Method 1
a first cyclone and a second cyclone for passing air therethrough, the air having dust filtered therefrom by a centrifugal force
Data Source
Figure 1
Figure 2~3
Figure 4
AI summary
A robot cleaner comprising: a cleaner body including a controller, the cleaner body having a dust container accommodation part formed therein; a wheel unit mounted in the cleaner body, the wheel unit of which driving is controlled by the controller; a suction unit mounted in the cleaner body to suck air containing dust; a dust container detachably coupled to the dust container accommodation part, the dust container filtering and collecting dust from sucked air; and a dust container cover including a hinge part rotatably coupled to the cleaner body, the dust container cover detachably coupled to the dust container to cover a top surface of the dust container.