Cyclone Dust Collector Compression Drive for Inlet Blockage
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Solution Overview
Problem
Conventional dust collecting apparatuses for vacuum cleaners face issues with dust blockage at the inlet, requiring additional power sources and complex motor control to operate dust compression and brushing devices simultaneously, leading to inefficiencies and design challenges.
Innovation Solution
A dust collecting apparatus with a compression device that performs clockwise and counterclockwise rotations using a single power source, featuring a gear unit and screw with guide vanes to collect dust blocked at the inlet, enhancing dust collection performance and allowing simultaneous operation of dust compression and brushing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a multi-cyclone structure is used to collect dust, then dust collection capability is improved, but dust blockage at the inlet occurs reducing collection performance
Solution Approach 1:
The inlet is designed to rotate dynamically to different positions. When dust blocks the inlet, the rotation mechanism moves the inlet to a different angular position, allowing the cyclone to continue collecting dust without interruption. This dynamic adjustment resolves the contradiction by maintaining collection performance despite blockage occurrence.
Solution Approach 2:
The system proactively rotates the inlet before complete blockage occurs or automatically detects and responds to blockage conditions. By preparing the inlet rotation mechanism in advance and implementing automatic rotation control, the system prevents performance degradation rather than reacting after failure occurs.
2Productivity
If a compression plate with driving motor is used to compress dust, then dust compression capability is improved, but device complexity and power loss increase
Solution Approach 1:
The compression plate is integrated with the rotating inlet mechanism, allowing a single motor to drive both the inlet rotation and dust compression functions. By merging these two functions into one mechanical system, the patent eliminates the need for separate driving motors, thereby reducing device complexity and power consumption while maintaining dust compression capability.
Solution Approach 2:
The compression plate serves multiple functions: it compresses dust during normal operation and simultaneously acts as the rotation mechanism for the inlet. This multi-functional design eliminates redundant components and simplifies the overall system structure while maintaining both dust compression and inlet rotation capabilities.
3Device complexity
If one motor drives both dust compression and dust brushing devices, then device complexity is reduced, but operational continuity is lost due to directional rotation requirements
Solution Approach 1:
The mechanical transmission system is segmented into independent gear mechanisms that can selectively engage different output shafts. The single motor's rotation is divided and transmitted to either the compression device or brushing device through selectable gear engagements, allowing each device to receive appropriate rotational direction without requiring the motor to physically reverse.
Solution Approach 2:
A gear transmission mechanism acts as an intermediary between the single motor and the two devices. The gears convert the motor's unidirectional rotation into bidirectional rotation for the compression and brushing devices as needed, eliminating the need for motor reversal while maintaining operational continuity of both devices.
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 enables efficient dust collection and simultaneous operation of dust compression and brushing with a single power source, improving dust collection performance and reducing the complexity of motor control, while preventing dust scattering during discharge.
Implementation Method 1
a first cyclone (210) installed in a first case (211), and configured to separate dust from air introduced together with foreign materials
Implementation Method 2
The multi-cyclone structure includes a first cyclone configured to primarily collect dust by sucking contaminated air from outside
Implementation Method 3
a second cyclone (220) mounted above the first cyclone, and configured to separate fine dust from the air having dust separated therefrom by the first cyclone
Implementation Method 4
a second cyclone connected to the first cyclone and configured to secondarily collect fine dust
Implementation Method 5
a compression device configured to compress the dust stored in the first dust storage unit (210)
Data Source
Figure 1~2
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Figure 4
AI summary
The present invention provides a dust collecting apparatus for a vacuum cleaner, comprising: a first cyclone installed in a first case and configured to separate dust from air introduced thereinto together with foreign substances and to discharge the separated dust to a first dust storage unit; a second cyclone mounted above the first cyclone and configured to separate fine dust from the air from which the dust is separated by the first cyclone and to discharge the separated fine dust to a second dust storage unit; a compression device configured such that at least a part thereof performs normal rotation in one direction and reverse rotation in the direction opposite to that of the normal rotation along the outer peripheral surface of a second case having the second dust storage unit therein to compress the dust stored in the first dust storage unit; a screw rotatably installed above the compression device and having a guide vane spirally extending along the outer periphery thereof to guide the collection of dust into the first dust storage unit; a driving unit that transmits a driving force to the compression device to selectively enable the normal rotation and the reverse rotation of the compression device; and a gear unit installed between the compression device and the screw to enable the screw to perform normal rotation while the compression device performs the normal rotation and the reverse rotation.