Cyclonic separating device, cleaner, surface cleaning apparatus and cyclonic separating method
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Solution Overview
Problem
Existing cyclonic separating devices for dust separation are large in size, high in volume, and have low separation efficiency due to their design, which limits their effectiveness in surface cleaning applications.
Innovation Solution
A cyclonic separating device with a first cyclonic separator and multiple second cyclonic separators arranged circumferentially in parallel, where the fluid is tangentially guided into the first cyclonic separator, reducing the overall height and volume of the device while enhancing separation efficiency by utilizing the entire dust barrel for primary separation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If multiple cyclonic separators are arranged in parallel outside each other, then the separation efficiency is improved, but the height and volume of the device increase
Solution Approach 1:
The patent applies nesting by placing multiple second cyclonic separators inside the first cyclonic separator. The second cyclonic separators are arranged in parallel within the interior space of the first cyclonic separator, creating a nested configuration where smaller separators are contained within a larger separator structure. This allows multiple separation stages to occupy the same spatial envelope, improving dust separation efficiency without proportionally increasing device volume.
Solution Approach 2:
The patent transitions from a single-stage separation approach to a multi-stage separation system by adding sequential separation levels. The first cyclonic separator performs primary separation, while the second cyclonic separators perform secondary separation on the already-separated fluid. This dimensional addition of separation stages within the same height constraint improves productivity without requiring proportional volume increase.
2Volume of moving object
If the height of the cyclonic separating device is reduced, then the volume of the surface cleaning apparatus is reduced, but the separation efficiency may be compromised
Solution Approach 1:
By nesting the second cyclonic separators within the first cyclonic separator, the patent achieves multi-stage separation within a compact height. The second cyclonic separators utilize the interior volume of the first separator, allowing the entire assembly to fit within a reduced overall height while maintaining effective separation capacity.
Solution Approach 2:
The first cyclonic separator performs preliminary separation of dust from the fluid stream before the fluid enters the second cyclonic separators. This preliminary action removes large particles first, allowing the subsequent separators to focus on finer separation tasks, thereby achieving high overall separation efficiency within a compact height through staged processing.
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 solution reduces the overall height and volume of the cyclonic separating device, significantly improving dust separation efficiency by allowing for primary and secondary separation within the same height, thus enhancing the separation efficiency and dust collection capacity.
Implementation Method 1
a guiding passage communicated with the inlet passage and the first cyclonic separator respectively, in which a fluid introduced through the inlet passage is tangentially guided into the first cyclonic separator by the guiding passage
Implementation Method 2
a first cyclonic separator defining a first longitudinal axis; a plurality of second cyclonic separators located downstream of the first cyclonic separator, arranged circumferentially around the first longitudinal axis in parallel
Data Source
AI summary
A cyclonic separating device includes: a first cyclonic separator defining a first longitudinal axis; a plurality of second cyclonic separators located downstream of the first cyclonic separator, arranged circumferentially around the first longitudinal axis in parallel, and integrally received in the first cyclonic separator; an inlet passage at least partially received in the first cyclonic separator; a guiding passage communicated with the inlet passage and the first cyclonic separator respectively, in which a fluid introduced through the inlet passage is tangentially guided into the first cyclonic separator by the guiding passage. In addition, a surface cleaning apparatus, a cleaner and a method for separating dust from a dust containing air using the cyclonic separating device are further provided.