Oblique Cyclone Tube Layout for Space-Efficient Dust Collection

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Existing dust collecting devices for electric tools, such as grinding devices, are inefficient in utilizing space and require frequent dust dumping due to the axial alignment of the dust separating part, leading to reduced user experience and ineffective dust collection.

Innovation Solution

A cyclone dust collecting device with a cyclone tube obliquely disposed within the dust collecting box, where the dust inlet is higher than the dust outlet, allowing for increased dust accumulation space without increasing the device's volume, and an air outlet positioned away from the host machine to prevent dust re-deposition.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Device complexity

If the dust separating part is disposed along the axial direction of the dust inlet, then the structure is simple, but the space utilization is poor and dust accumulation space is limited

Engineering Contradiction:
Improvestructural simplicityVSAvoiddust accumulation space
Core Design Contradiction:
Device complexityVSVolume of moving object

Solution Approach 1:

The cyclone tube is disposed obliquely relative to the axial direction of the dust inlet, changing the separation direction from axial to oblique. This dimensional change allows the dust separating part to utilize the radial and vertical spaces within the dust collecting box more effectively, significantly increasing the dust accumulation space without increasing the overall device volume.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

2Volume of moving object

If the dust collecting box volume is increased to accommodate more dust, then the dust accumulation space is increased, but the device volume and portability are reduced

Engineering Contradiction:
Improvedust accumulation spaceVSAvoiddevice volume
Core Design Contradiction:
Volume of moving objectVSVolume of stationary object

Solution Approach 1:

By disposing the cyclone tube obliquely rather than axially, the patent creates more efficient use of three-dimensional space within the dust collecting box. The oblique arrangement allows dust to accumulate in the lower portion of the box while the upper portion remains available for other components, effectively increasing dust accumulation capacity without increasing the external dimensions of the device.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

Solution Approach 2:

The patent changes the orientation parameter of the cyclone tube from axial to oblique, which fundamentally alters the spatial distribution of dust accumulation. This parameter change enables the system to achieve greater dust accumulation volume within the same device envelope by optimizing the internal spatial arrangement.

Inventive Principle:
Principle #35Parameter changes

3Productivity

If the dust separating part is positioned to maximize dust collection, then dust collection efficiency is improved, but the air outlet may blow dust back into the device

Engineering Contradiction:
Improvedust collection efficiencyVSAvoiddust re-deposition
Core Design Contradiction:
ProductivityVSObject-generated harmful factors

Solution Approach 1:

The air outlet is positioned asymmetrically relative to the cyclone tube and dust accumulation area. The air outlet is disposed at a location and orientation that directs the exhaust airflow away from the dust accumulation zone and away from the host machine body, preventing dust re-deposition while maintaining effective dust collection through the oblique cyclone configuration.

Inventive Principle:
Principle #4Asymmetry

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

Enhances dust collection efficiency and reduces the frequency of dust dumping, maintaining a cleaner environment and improving user experience by optimizing the internal structure and orientation of the cyclone dust collecting device.

Implementation Method 1

a separator including a dust inlet and a cyclone tube, wherein the dust inlet communicates with the dust entrance, the dust inlet is configured to guide the dust exhaust airflow into the cyclone tube

Methodology Applied
Scientific EffectCyclone separation: Cyclone Separation

Implementation Method 2

the cyclone tube extends in a second direction and is at least partially disposed in the dust collecting box, the cyclone tube includes a dust outlet and an air outlet disposed on the cyclone tube

Methodology Applied
Scientific EffectCentrifugal force: Centrifugal Force

Data Source

PatentEP3932277B1Cyclone dust collecting device and grinding device
Publication Date: 2022.09.14 NANJING CHERVON IND
  • EP3932277B1 patent drawingFigure 1~2
  • EP3932277B1 patent drawingFigure 3~4
  • EP3932277B1 patent drawingFigure 5~6

AI summary

Provided is a cyclone dust collecting device (300). The cyclone dust collecting device (300) includes a dust collecting box (30) and a separator (40). The dust collecting box (30) includes a dust entrance (301) and a cavity (302) formed by extension in a first direction (O1). The dust entrance (301) communicates with a dust exhaust channel (10a) of a host machine (100). The separator (40) includes a dust inlet (41) and a cyclone tube (42), and the dust inlet communicates with the dust entrance. The dust inlet is configured to guide the dust exhaust airflow into the cyclone tube. The cyclone tube extends in a second direction (O2) and is at least partially disposed in the dust collecting box. The cyclone tube includes an dust outlet and an air outlet, the dust outlet is located in the cavity, and the air outlet communicates with an outside of the dust collecting box. The second direction obliquely intersects the first direction.