Cyclone Vacuum Dust Collection With Auto-Release Secondary Chamber
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Solution Overview
Problem
Cyclonic vacuum cleaners face limitations in capacity due to re-entrainment of dirt and dust at the bottom of the cyclone chamber and require frequent emptying, with existing solutions being messy and unhygienic.
Innovation Solution
A vacuum cleaner with a cyclone separation apparatus featuring a primary collection chamber, a secondary collection chamber downstream, and a valve system that retains dust and dirt, allowing it to be emptied only when the cleaner is disassembled, eliminating the need for additional valves and reducing re-entrainment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a cyclone chamber is used to separate dirt and dust from airflow, then separation efficiency is improved, but the capacity for holding collected dirt and dust is limited due to re-entrainment
Solution Approach 1:
The collection chamber is divided into two distinct segments: a primary collection chamber that receives separated matter from the cyclone separator, and a secondary collection chamber that receives matter from a downstream separation device. This segmentation allows each chamber to serve its specific function without interference, preventing re-entrainment while maximizing total capacity.
Solution Approach 2:
The patent implements a nested structure where the secondary collection chamber is positioned downstream of the primary collection chamber, with a valve member controlling the passageway between them. The downstream separation device is nested within the system architecture, creating a multi-layered collection architecture that optimizes space utilization and separation efficiency.
2Device complexity
If a single collection chamber is used, then device complexity is reduced, but the frequency of emptying increases
Solution Approach 1:
The downstream separation device performs preliminary separation of finer particles before they reach the primary collection chamber. By pre-separating matter in the secondary collection chamber, the system prepares material for eventual consolidation into the primary chamber, extending the time between emptying operations without significantly increasing structural complexity.
Solution Approach 2:
The valve member acts as an intermediary between the primary and secondary collection chambers. It controls the flow of separated matter from the downstream device into the primary chamber, enabling timed consolidation of collected material. This intermediary mechanism reduces emptying frequency by accumulating material in the secondary chamber before transfer.
3Ease of operation
If dirt and dust are simply emptied by removing the collection chamber and opening a flap, then ease of operation is improved, but hygiene deteriorates due to messy and unhygienic dust discharge
Solution Approach 1:
The valve member is extracted as a separate controllable element from the simple flap opening mechanism. By isolating the valve function, the system enables controlled release of dust and dirt through a regulated passageway rather than uncontrolled dumping, significantly improving hygiene while maintaining operational simplicity.
Solution Approach 2:
The emptying process is transformed from a static flap opening to a dynamic, controlled valve operation. The valve member can be actuated to open or close the passageway between chambers, enabling controlled discharge of collected material. This dynamic control prevents messy dust discharge while preserving ease of operation through simple valve actuation.
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 significantly increases the capacity for holding collected dirt and dust, reducing the frequency of emptying and improving hygiene by allowing controlled release of dust and dirt during disassembly.
Implementation Method 1
a cyclone separator (13) arranged at the lower end of the unit. The cyclone separator (13) comprises a cyclone chamber (14)
Implementation Method 2
An auger is mounted in the collection region of the chamber, the auger having a vane which drives the separated dust downwardly into the collection region and serves to compact the collected dust.
Implementation Method 3
The dirt and dust then falls under gravity into a refuse receptacle.
Data Source
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AI summary
A vacuum cleaner comprises a detachable separation unit having first and second devices 13,26 for separating dirt and dust from an airflow through the cleaner. The dirt and dust separated by the devices 13 is deposited in a first collection region disposed at the bottom of a cyclone chamber 14. The dirt and dust separated by the second device 26 is collected in a second collection region 30 which is normally closed by a valve 35 to prevent air from leaving the cyclone chamber 14. An actuator 34 is provided for automatically opening the valve 35 to release the collected dirt and dust in the second collection region 30 when the unit is detached from the body of the cleaner, so that it can fall from the unit along with dirt and dust from the first region when a flap 17 at the bottom of the chamber 14 is opened.