Dual-Stage Dust Storage with Compression and Backflow Prevention
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Solution Overview
Problem
Existing dust collecting apparatuses face challenges in enhancing dust separation performance and preventing dust backflow from storage units to separation units, leading to inefficiencies in dust collection and storage.
Innovation Solution
The apparatus incorporates a dust separation unit, a filter unit, and a dual-stage dust storage system with a pressing member and fixing member configuration that includes a path for air passage and a dust movement guide to enhance dust separation and storage efficiency, minimizing backflow and dust scattering.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a single-stage dust storage unit is used, then the device complexity is reduced, but the dust separation performance and storage capacity are insufficient
Solution Approach 1:
The dust storage unit is divided into a first dust storage unit and a second dust storage unit, creating a dual-stage system. The first dust storage unit receives dust from the dust separation unit, while the second dust storage unit stores compressed dust. This segmentation allows for improved dust separation performance and increased storage capacity while managing complexity through functional division.
2Quantity of substance
If dust is stored without compression, then the ease of operation is improved, but the storage capacity is reduced
Solution Approach 1:
A pressing member is configured to compress dust stored in the first dust storage unit before it is transferred to the second dust storage unit. This preliminary compression action increases the storage capacity of the system by reducing the volume of dust, allowing more dust to be stored in the same space. The compression is performed automatically as part of the dust transfer process.
3Reliability
If the dust storage unit is positioned at the same level as the dust separation unit, then the device complexity is reduced, but dust backflow occurs
Solution Approach 1:
The first dust storage unit is positioned lower than the dust separation unit, creating an asymmetric vertical arrangement. This positioning difference prevents dust backflow from the storage unit to the separation unit by utilizing gravity to maintain unidirectional dust flow. The asymmetric positioning is a simple structural change that effectively solves the backflow problem.
4Productivity
If air passage paths are blocked during dust compression, then the dust compression efficiency is improved, but air and dust backflow increases
Solution Approach 1:
A fixing member is configured to form a localized air passage between the pressing member and the first dust storage unit. This local air passage allows air to escape during dust compression while preventing dust backflow. The air passage is positioned specifically to enable efficient air evacuation without compromising the compression efficiency or allowing harmful dust backflow.
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 improves dust separation performance and prevents backflow, ensuring efficient dust collection and storage by utilizing a dual-stage system with a pressing member and fixing member configuration, which enhances dust accumulation and storage capacity while minimizing air and dust rise.
Implementation Method 1
a pressing member configured to compress the dust stored in the dust storage unit
Implementation Method 2
a dust movement guide configured to guide movement of the dust so that the dust separated in the dust separation unit smoothly falls down into the dust storage unit
Implementation Method 3
a path formed by a part of the fixing member, located between the pressing plate support part and the inner circumferential surface of the dust storage unit, and through which the air between the pressing plate and the fixing member passes
Implementation Method 4
a flow restriction part configured to protrude from the first dust storage unit and to restrict rising of the air in the first dust storage unit
Data Source
AI summary
A dust collecting apparatus includes a dust separation unit to separate dust from suctioned air; a dust storage unit to store the dust separated in the dust separation unit; a pressing member to compress the dust stored in the dust storage unit, and having a pressing plate support part, and a pressing plate supported by the pressing plate support part; a fixing member disposed between an inner circumferential surface of the dust storage unit and the pressing plate support part; and a path formed by a part of the fixing member, located between the pressing plate support part and the inner circumferential surface of the dust storage unit, and through which the air between the pressing plate and the fixing member passes, wherein one or more holes through which the air between the pressing plate and the fixing member passes are formed at the pressing plate.