Cyclone Dust Separator Layout to Prevent Dust Backflow
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Solution Overview
Problem
Existing cyclone dust-separating apparatuses in vacuum cleaners suffer from backflow of collected dust when overturned, leading to clogged filters and complex structures due to integrated air inflow and discharge ports.
Innovation Solution
A cyclone dust-separating apparatus with a cyclone body and a dirt-collecting chamber, featuring a backflow prevention protrusion on the upper cover and an air discharge pipe located on the bottom, which prevents dust from flowing back to the cyclone chamber and simplifies the structure by separating air inflow and discharge ports.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the air inflow port and air discharge port are both formed in the cover, then the air flow path is established, but the cover structure becomes complicated
Solution Approach 1:
The patent divides the air flow path into separate components: the air discharge port is formed in the cover, while the air inflow port is formed in the cyclone body. This segmentation allows each component to have a simpler, more focused structure while collectively achieving the complete air flow path functionality.
2Productivity
If the cyclone dust-separating apparatus is overturned during cleaning operation, then dust can be discharged from the air discharge port, but collected dust spills out and escapes through the air discharge port
Solution Approach 1:
The patent positions the air discharge port at the bottom of the cyclone body rather than in the upper cover. This preliminary structural arrangement prevents dust from spilling out through the air discharge port when the apparatus is overturned, as the air discharge port is now at the lowest point where dust accumulation occurs, blocking dust escape while maintaining normal discharge functionality.
3Volume of moving object
If separating operations and collecting operations are performed at the same place, then the apparatus is compact, but collected dust may be scatted or flow back to the discharge pipe by cyclone air current
Solution Approach 1:
The patent spatially segments the cyclone chamber and dirt-collecting chamber with a clear separation interface. The cyclone air current is confined to the cyclone chamber for separation operations, while the dirt-collecting chamber collects dust. This segmentation prevents dust from being scattered or flowing back to the discharge pipe by cyclone air current, maintaining separation efficiency while keeping the apparatus compact.
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
Prevents backflow of dust when the vacuum cleaner is overturned, reduces filter clogging, and simplifies the cover structure by ensuring dust remains in the dirt-collecting chamber, maintaining separation efficiency and preventing dust scattering.
Implementation Method 1
a cyclone body having a cyclone chamber and a dirt-collecting chamber enclosing an outer circumference of the cyclone chamber
Data Source
AI summary
A cyclone dust-separating apparatus including a cyclone body having a cyclone chamber and a dirt-collecting chamber enclosing an outer circumference of the cyclone chamber, an upper cover disposed on an upper end of the cyclone body to form a connection passage between the cyclone chamber and the dirt-collecting chamber, and a backflow prevention protrusion formed on an inner wall of the upper cover, for preventing dirt collected in the dirt-collecting chamber from flowing back to the cyclone chamber.