Dust collection box and robot vacuum cleaner
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Solution Overview
Problem
Existing robot vacuum cleaners' dust collection systems fail to effectively separate air from dust, leading to poor air quality and frequent HEPA filter replacement due to dust accumulation, which is inconvenient and reduces filter lifespan.
Innovation Solution
A dust collection box with a dust separation structure at the air inlet and a filter at the air outlet, where the dust separation structure blocks most dust, allowing filtered air to pass through the filter, effectively purifying the air and extending the filter's lifespan by reducing dust exposure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Duration of action of stationary object
If only a filter is used in the dust collection box, then air can be filtered, but dust accumulates on the filter quickly causing frequent replacement and short service life
Solution Approach 1:
The dust collection box is segmented into two functional stages: a dust separation structure (cyclone separator) for coarse dust removal and a filter for fine particle filtration. This segmentation allows the filter to handle only a reduced amount of fine dust rather than all dust particles, extending its service life while maintaining air quality.
Solution Approach 2:
The dust separation structure performs preliminary dust removal before air reaches the filter. By pre-separating the majority of dust particles through centrifugal force in the cyclone separator, the filter is protected from rapid clogging, thereby prolonging its operational lifespan.
2Reliability
If dust is not separated before filtration, then all dust acts on the filter, but this causes poor air quality and secondary pollution from unfiltered dust
Solution Approach 1:
The filtration system is divided into two stages: coarse dust separation via cyclone separator and fine particle filtration via HEPA filter. This ensures comprehensive dust removal for high air quality while maintaining a manageable system complexity through functional modularity.
Solution Approach 2:
The dust separation structure acts as an intermediary between the dust-laden air and the filter. It pre-processes the air by removing bulk dust, allowing the filter to focus on fine particles, thereby ensuring high air quality without overwhelming the filter system.
3Duration of action of stationary object
If a dust separation structure is added before the filter, then dust is blocked effectively and filter life is extended, but the device complexity increases
Solution Approach 1:
The dust collection box uses segmentation to divide dust removal into two simple, efficient stages: cyclonic separation for coarse dust and filtration for fine particles. This modular approach extends filter life while keeping each component relatively simple in design.
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 effectively purifies the air by separating dust from air, prolonging the filter's service life and reducing the frequency of filter changes, providing greater convenience for users.
Implementation Method 1
a dust separation structure configured to block dust, and arranged in the box body and located at an air inlet side of the opening
Implementation Method 2
the air enters the filter through the opening, and the air is filtered by the filter which separates air from a small amount of dust
Data Source
AI summary
A dust collection box and a robot vacuum cleaner are disclosed. The dust collection box is used in the robot vacuum cleaner. The dust collection box includes a box body, a filter holder arranged in the box body, a dust separation structure configured to block dust, and a filter. The box body defines an air inlet and an air outlet. The filter holder defines an opening in a side surface thereof. The dust separation structure is arranged in the box body and located at an air inlet side of the opening. The filter is arranged to the filter holder and located at an air outlet side of the opening.