Robot Vacuum Dust Box Filtration for Cleaner Air and Longer Filter Life
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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 replacements 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
1Reliability
If only a filter is used in the dust collection box without a dust separation structure, then the structure is simple, but the air and dust are not separated effectively leading to poor air quality and frequent filter replacements
Solution Approach 1:
The dust collection box is segmented into two functional zones: a dust separation structure (including dust separation plate and dust collection cavity) for coarse dust removal, and a filter for fine particle filtration. This segmentation allows each component to specialize in a specific filtration stage, improving overall air quality while distributing the workload to prevent premature filter clogging
Solution Approach 2:
The dust separation plate acts as an intermediary element between the air inlet and the filter. It intercepts and collects dust particles before they reach the filter, serving as a protective mediator that extends filter life and maintains air quality by ensuring only fine particles reach the filter medium
2Duration of action of stationary object
If dust directly contacts the filter upon entering the dust collection box, then the filtration process is simple, but the service life of the filter is short requiring frequent replacement
Solution Approach 1:
The dust separation structure performs preliminary dust removal action before air reaches the filter. The dust separation plate and collection cavity capture dust particles in advance, preventing them from accumulating on the filter and extending its service life without requiring complex additional mechanisms
Solution Approach 2:
The dust collection cavity provides a buffer zone that cushions the impact of dust particles before they can reach the filter. This beforehand cushioning protects the filter from direct dust accumulation, extending its operational life while maintaining a relatively simple overall structure
3Reliability
If the dust collection box uses only a filter for dust removal, then the device is simple, but the discharged air has poor quality causing secondary pollution
Solution Approach 1:
The filtration system is segmented into two stages: primary dust separation via the dust separation plate and collection cavity, followed by secondary fine particle filtration via the filter. This multi-stage segmentation achieves superior air quality by addressing different particle sizes separately, while keeping each stage relatively simple in design
Solution Approach 2:
The dust separation plate serves as an intermediary filtration layer that handles coarse dust removal, allowing the main filter to focus on fine particle capture. This intermediary approach improves discharged air quality by ensuring both coarse and fine particles are removed, while distributing system complexity across multiple simpler components
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 separates air from dust, improving air quality and reducing the frequency of filter replacements, thus enhancing user convenience and extending the filter's service life.
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
dust separation structure configured to block dust... most of the dust can be blocked by the dust separation structure
Implementation Method 3
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.