Dual-Cyclone Dust Collector With Unified Dust Discharge
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Solution Overview
Problem
Existing dust collectors for vacuum cleaners face inefficiencies due to dust getting stuck on filters, interfering with airflow and requiring multiple processes for dust discharge, which reduces overall cleaning efficiency and complicates dust removal.
Innovation Solution
A dust collector design featuring a first cyclone for separating large dust, a second cyclone for fine dust separation, and a hinged lower cover that defines the bottom surface of both dust storing units, allowing for simultaneous discharge of collected dust when open, along with a conic mesh filter to facilitate dust separation from the filter.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a filter is provided in the first cyclone to separate large dust, then dust separation is improved, but dust gets stuck on the filter and interferes with airflow, reducing cleaning efficiency
Solution Approach 1:
The filter is extracted from the first cyclone and relocated to the second cyclone. This allows the first cyclone to function without filter interference, maintaining high cleaning efficiency, while the second cyclone handles fine dust separation with the filter in its original airflow path
2Quantity of substance
If multiple dust storing units are used to collect different types of dust, then dust collection capability is improved, but dust discharge requires multiple processes, complicating the operation
Solution Approach 1:
The first and second dust storing units are merged into a single integrated dust discharge system. The common discharge port and unified cover structure allow both dust collections to be discharged simultaneously through one operation, eliminating the need for separate discharge processes
3Manufacturing precision
If a filter is installed in the first cyclone, then large dust separation is improved, but the filter structure complicates the overall device design
Solution Approach 1:
The filter is extracted from the first cyclone structure and repositioned to the second cyclone. This simplifies the first cyclone design by removing the filter component, while the second cyclone maintains its filtering function with the filter in its original airflow path
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 dust collection efficiency by simplifying dust discharge and reducing filter interference, improving airflow and overall vacuum cleaner performance by allowing for easy and simultaneous discharge of both large and fine dust.
Implementation Method 1
external polluted air is introduced into the first cyclone through the first inlet of the first cyclone. Here, the polluted air is introduced in a tangential direction, and orbits along an inner wall surface of the first body of the first cyclone. During the orbiting motion, dust is separated from the air by a centrifugal force.
Implementation Method 2
air containing fine dust, discharged from the first cyclone, is introduced into the second cyclones through the second inlets. Therefore, the fine dust is separated from the air again in the second cyclones
Implementation Method 3
a conic mesh filter to facilitate dust separation from the filter
Data Source
AI summary
A dust collector for a vacuum cleaner disclosed herein includes a first cyclone that is configured to separate dust from air introduced from a lower portion thereof with containing foreign materials and discharge the separated dust into a first dust storing unit, a second cyclone that is configured to separate fine dust from the air, from which the dust has been separated by the first cyclone, and discharge the separated fine dust into a second dust storing unit defined in a second case, and a lower cover that is coupled to the first case by a hinge so as to define a bottom surface of the first dust storing unit, the second dust storing unit and the first cyclone upon being closed, and discharge therethrough the foreign materials collected in the first dust storing unit, the second dust storing unit and the first cyclone upon being open.