Convex Cyclone Body Shape for Lower Vacuum Cleaner Noise
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Solution Overview
Problem
Conventional cyclone dust-separating apparatuses in vacuum cleaners face issues with increased operating noise and pressure loss due to uniform cylinder shape, leading to higher power consumption and frequent emptying of dust collecting units.
Innovation Solution
The cyclone dust-separating apparatus features a cyclone body with a convex cylinder shape, where the diameter is maximized at the air discharging part, and optionally combined with linear cylinder portions, to reduce air flow speed and noise, and includes tangential, helical, or involute inlet shapes to manage air flow effectively.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the cyclone body is formed in a uniform cylinder shape, then the manufacturing is simple, but the air flow speed increases at the air discharging part causing increased pressure loss and operating noise
Solution Approach 1:
The cyclone body transitions from a uniform cylinder to a variable cross-section design where the diameter changes along the longitudinal direction. Specifically, the diameter is larger at the air inflow part and smaller at the air discharging part, creating local quality variations that optimize air flow characteristics and reduce pressure loss while maintaining manufacturing feasibility.
Solution Approach 2:
The patent changes the geometric parameters of the cyclone body by varying the diameter along its length. This parameter change transforms the uniform cylinder shape into a tapered or bell-shaped structure, which controls the air flow velocity distribution and reduces the harmful speed increase at the discharge part, thereby lowering pressure loss.
2Ease of manufacture
If the cyclone body is formed in a uniform cylinder shape, then the manufacturing is simple, but the operating noise increases due to increased air flow speed at the air discharging part
Solution Approach 1:
The cyclone body transitions from a uniform cylinder to a variable cross-section design where the diameter changes along the longitudinal direction. Specifically, the diameter is larger at the air inflow part and smaller at the air discharging part, creating local quality variations that optimize air flow characteristics and reduce pressure loss while maintaining manufacturing feasibility.
Solution Approach 2:
The patent changes the geometric parameters of the cyclone body by varying the diameter along its length. This parameter change transforms the uniform cylinder shape into a tapered or bell-shaped structure, which controls the air flow velocity distribution and reduces the harmful speed increase at the discharge part, thereby lowering pressure loss.
3Loss of energy
If the cyclone body is formed in a convex cylinder shape with maximum diameter at the air discharging part, then the pressure loss and operating noise are reduced, but the manufacturing complexity increases
Solution Approach 1:
The patent changes the geometric parameters of the cyclone body by varying the diameter along its length. This parameter change transforms the uniform cylinder shape into a tapered or bell-shaped structure, which controls the air flow velocity distribution and reduces the harmful speed increase at the discharge part, thereby lowering pressure loss.
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
This configuration decreases operating noise and pressure loss, reducing the suction motor output required for the same dust-separating efficiency, thus reducing power consumption and extending the interval between dust collection unit emptying.
Implementation Method 1
a cyclone having a cyclone body, which rotates air to separate dust or dirt therefrom
Implementation Method 2
a cyclone having a cyclone body, which rotates air to separate dust or dirt therefrom
Data Source
Figure 1
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Figure 4
AI summary
A cyclone dust-separating apparatus (9) of a vacuum cleaner is disclosed. The cyclone dust-separating apparatus (9) includes at least one cyclone (10) having a cyclone body (24), which rotates air to separate dust or dirt (54) therefrom, which has an air inflow part and an air discharging part, and which is installed in such a manner that a longitudinal axis (X) thereof is substantially horizontally arranged, and a dust collecting unit (50) to store the dust or dirt separated by the cyclone unit. The cyclone body (24) is formed in a convex cylinder shape, so that a diameter thereof in the vicinity of an entrance of the air discharging part through which the air is discharged comes maximum.