Cyclone Chamber Asymmetry to Reduce Vacuum Cleaner Noise
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Solution Overview
Problem
Conventional cyclone vacuum cleaners produce loud noise due to the superposition of noise frequencies from equally sized and configured cyclone chambers, leading to amplified noise levels.
Innovation Solution
The vacuum cleaner is designed with cyclone chambers having different frequency characteristics, achieved by varying the lengths and sizes of extending pipes and outlets, as well as the configuration of the cyclone chambers themselves, to prevent noise superposition.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If multiple equally sized and configured cyclone chambers are installed, then dust separation effectiveness is improved, but noise level increases due to superposition of noise frequencies
Solution Approach 1:
The patent applies asymmetry by designing cyclone chambers with different sizes, shapes, or configurations so that each chamber generates noise at different frequencies. This prevents the superposition of noise frequencies that occurs when identical chambers operate in parallel, thereby reducing overall noise levels while maintaining effective dust separation across multiple chambers.
Solution Approach 2:
The patent implements local quality by varying specific parameters (such as chamber volume, inlet size, outlet position, or wall thickness) of individual cyclone chambers within the group. This creates local differences in noise generation characteristics among chambers, ensuring that noise frequencies do not coincide and superpose, thus reducing the harmful noise effect while preserving the collective separation performance.
2Object-generated harmful factors
If cyclone chambers with different configurations are used, then noise superposition is prevented, but device complexity increases
Solution Approach 1:
The patent applies parameter changes by systematically varying specific design parameters (such as chamber volume, inlet diameter, outlet position, or height) of cyclone chambers to achieve different noise frequencies. This controlled variation in parameters allows the patent to prevent noise superposition while maintaining a degree of design standardization, thus balancing noise reduction with manageable device complexity.
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 design effectively reduces operative noise by ensuring that noise frequencies from different cyclone chambers do not coincide, resulting in a quieter operation.
Implementation Method 1
a cyclone chamber is installed, instead of a filter for separating waste from polluted air sucked into the vacuum cleaner, so as to generate a swirling air stream of sucked air, to separate waste and dust from the sucked polluted air
Implementation Method 2
generate a swirling air stream of sucked air, to separate waste and dust from the sucked polluted air
Data Source
AI summary
A cyclone vacuum cleaner including a plurality of cyclone chambers arranged in a group. The cyclone chambers are configured such that frequency characteristics of noises generated from respective cyclone chambers are different from each other.