Cyclonic separating device and surface cleaning device
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Solution Overview
Problem
Existing cyclonic separating devices have a non-compact cyclone structure, limiting the number of cyclones that can be arranged in a given space, resulting in low separation efficiency.
Innovation Solution
A cyclonic separating device with a two-stage separation system, featuring a first and second cyclonic separating unit with multi-section cone structured cyclones, where the first cyclones are arranged in a ring shape and the second cyclones partially extend into the accommodation space defined by the first cyclones, optimizing space utilization and separation efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If traditional single-stage cyclone structure is used, then device complexity is low, but separation efficiency is insufficient
Solution Approach 1:
The cyclone separator is divided into multiple independent cyclone units (first cyclone, second cyclone, third cyclone) arranged in series, where each cyclone performs a stage of separation. This segmentation allows the system to achieve higher overall separation efficiency by processing dust particles through multiple separation stages, with each stage targeting different particle size ranges or separation requirements.
Solution Approach 2:
The second cyclone is positioned within the accommodation space formed by the first cyclone, and the third cyclone is positioned within the accommodation space formed by the second cyclone. This nested arrangement allows multiple cyclone separators to be compactly integrated in a limited space while maintaining their individual separation functions, effectively increasing separation capacity without proportionally increasing device volume.
2Productivity
If more cyclones are arranged in traditional configuration, then separation efficiency increases, but space utilization deteriorates
Solution Approach 1:
The second cyclone is positioned within the accommodation space formed by the first cyclone, and the third cyclone is positioned within the accommodation space formed by the second cyclone. This nested arrangement allows multiple cyclone separators to be compactly integrated in a limited space while maintaining their individual separation functions, effectively increasing separation capacity without proportionally increasing device volume.
Solution Approach 2:
The cyclones are arranged in a vertical stacked configuration rather than horizontal placement, utilizing the vertical dimension to accommodate multiple separation stages. This three-dimensional arrangement maximizes space utilization by stacking cyclone units one above another, allowing more cyclones to be integrated into a compact vertical footprint.
3Volume of moving object
If multi-section cone structure is used, then space utilization improves, but manufacturing precision requirements increase
Solution Approach 1:
Each cyclone is divided into multiple cone sections (first cone section, second cone section, third cone section) with different geometric parameters optimized for specific separation stages. This segmentation allows each section to be independently manufactured and then assembled, reducing the overall manufacturing precision requirements compared to producing a single complex cone as one piece.
Solution Approach 2:
The multi-section cone structures are designed with standardized connection interfaces that facilitate precise assembly. The first cone section connects to the second cone section, which connects to the third cone section, with each connection point designed to maintain proper alignment. This modular approach to multi-section construction reduces cumulative alignment errors and simplifies manufacturing quality control.
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 compact structure allows for increased cyclone arrangement, enhancing cyclonic separation efficiency and promoting better airflow and dust separation within a limited space.
Implementation Method 1
The cyclonic separating device is typically used to separate dirt in airflow
Implementation Method 2
When the motor and the fan unit in the body are in operation, the dirt is sucked into the cyclonic separating device through the dusty-air inlet
Data Source
AI summary
A cyclonic separating device includes first and second cyclonic separating units. The first cyclonic separating unit is fitted over the second cyclonic separating unit. The second cyclonic separating unit includes first cyclones and second cyclones respectively arranged in a ring shape. Dust falling ends of the first cyclones define an accommodation space therebetween. The second cyclones partially extend into the accommodation space. Each first cyclone comprises first, second and third cone sections, each of which has a cone structure; airflow sucked in the first cyclones is sequentially separated by the first, second and third cone sections, and dust in the airflow is discharged from the third cone section; a central axis of the first cone section is parallel to a longitudinal axis of the dust cup; and an angle between a central axis of the second cone section and a central axis of the third cone section is 5°-20°.