Vacuum Dust Collector Layout for Filter Dust Recirculation
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Solution Overview
Problem
Conventional dust collecting apparatuses in vacuum cleaners suffer from reduced suction force and efficiency due to dust accumulation on secondary filters, requiring complex structures and separate valves for dust removal, which complicates maintenance and may not fully remove dusts from the filter.
Innovation Solution
A dust collecting apparatus with a filter casing and dust discharge member that rotates to move filter dust to a dust receptacle, using vanes and protrusions to discharge dust into a centrifugal separating portion, allowing for automatic collection and prevention of filter recontamination, with a modular design for easy maintenance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a separate valve is used to open and close the flow passage for dust removal, then dust removal function is achieved, but the device complexity increases and pressure loss occurs
Solution Approach 1:
The patent removes the separate valve component from the system by redesigning the flow passage structure. The dust removal flow passage is integrated directly into the housing with automatic opening/closing functionality built into the structural design, eliminating the need for separate valve mechanisms while maintaining the dust removal function.
Solution Approach 2:
The housing structure serves multiple functions: it contains the centrifugal separator, provides the dust removal flow passage, and incorporates the automatic opening/closing mechanism for dust discharge. This multi-functional integration eliminates separate components and reduces overall device complexity.
2Reliability
If conventional dust removal structures are used, then dust removal is achieved, but maintenance work such as repair or replacement of components becomes difficult
Solution Approach 1:
The dust collecting apparatus is divided into separable modules: the centrifugal separator can be detached from the housing, and the dust collection container is removable. This segmentation allows easy access to internal components for maintenance, repair, or replacement without disassembling the entire device.
Solution Approach 2:
The patent incorporates movable and adjustable components, including the rotatable dust discharge member and removable centrifugal separator, which facilitate easy maintenance. These dynamic elements allow users to access and service internal components without permanent disassembly.
3Length of stationary object
If the vacuum cleaner height is reduced by horizontal arrangement of components, then compactness is improved, but component layout complexity increases
Solution Approach 1:
The patent transitions from vertical stacking of components to horizontal arrangement within the housing. The centrifugal separator, dust collection container, and filter assembly are positioned side-by-side in the horizontal plane, reducing the overall height of the vacuum cleaner while maintaining functional separation.
Solution Approach 2:
The dust collection container is positioned within the housing space in a nested arrangement, with the centrifugal separator and filter assembly arranged around it. This efficient use of internal volume allows compact horizontal layout without increasing external dimensions.
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 apparatus ensures efficient collection and discharge of filter dust, prevents filter contamination, facilitates maintenance, and reduces the size and height of the vacuum cleaner by arranging components in a horizontal parallel configuration, enhancing user convenience and reliability.
Implementation Method 1
a centrifugal separating portion (110), a dust receptacle (120), and a filtering portion (130), which are arranged in a parallel relationship and in a horizontal direction
Implementation Method 2
The plurality of vanes, when the filter unit is rotated, may move the filter dust to the dust discharge port
Data Source
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AI summary
A dust collecting apparatus of a vacuum cleaner is provided. The dust collecting apparatus includes a centrifugal separating portion, a dust receptacle to collect dust which is separated by the centrifugal separating portion and, a filter portion having a filter unit separating dust from an air current discharging from the centrifugal separating portion, wherein the filter portion also includes a dust removing unit to detach the filter dust caught in the filter unit from the filter unit, and a dust discharge member to forcibly move the filter dust to the upstream of the centrifugal separating portion.