Cyclonic Vacuum Cleaner Filter Integration to Reduce Noise and Volume
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Solution Overview
Problem
Vacuum cleaners face challenges in compact design and noise reduction due to the inefficiencies in space utilization and noise generation in their motor, fan, and cyclonic separation apparatus arrangements, which affect their performance and user experience.
Innovation Solution
A motor, fan, and cyclonic separation apparatus arrangement is designed with a pre-fan filter located directly at the air outlet port of the cyclonic separation apparatus, eliminating ducting and incorporating longitudinal internal ribs in the vortex finder to dampen high-frequency sounds and reduce energy losses, resulting in a more compact and quieter vacuum cleaner.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a pre-fan filter is located downstream of the cyclonic separation apparatus, then dust and dirt particles can be removed before reaching the fan, but the arrangement occupies more space and increases device complexity
Solution Approach 1:
The pre-fan filter is merged with the cyclonic separation apparatus by positioning it directly at the air outlet port of the cyclone, eliminating the need for separate ducting and reducing overall device complexity while maintaining fan protection functionality
Solution Approach 2:
The air outlet port of the cyclonic separation apparatus serves dual functions: as the exit for separated air and as the mounting location for the pre-fan filter, allowing the filter to be integrated into the existing structure without requiring additional space or components
2Ease of operation
If ducting is used to connect the cyclonic separation apparatus to the fan, then airflow can be directed, but space is wasted and noise is generated
Solution Approach 1:
The ducting component is extracted and eliminated from the system by directly positioning the pre-fan filter at the cyclone air outlet port, allowing airflow to be directed through the filter without requiring separate ducting structures
Solution Approach 2:
The airflow path is merged directly from the cyclonic separation apparatus outlet to the pre-fan filter, eliminating intermediate ducting components and reducing the overall volume of the vacuum cleaner
3Ease of operation
If ducting is used to connect the cyclonic separation apparatus to the fan, then airflow can be directed, but noise levels increase
Solution Approach 1:
The ducting component is extracted and eliminated from the system, removing the source of noise generated by airflow through ducts while maintaining effective airflow direction through direct positioning of the pre-fan filter
Solution Approach 2:
The airflow path is merged directly from the cyclonic separation apparatus to the pre-fan filter, eliminating intermediate ducting structures that generate noise and reducing overall noise levels
4Volume of moving object
If the vacuum cleaner is designed to be compact, then space is utilized efficiently, but noise reduction becomes more difficult
Solution Approach 1:
The pre-fan filter is merged with the cyclonic separation apparatus by positioning it directly at the air outlet port, eliminating the need for separate ducting structures that would increase volume and noise, thereby achieving both compact design and noise reduction simultaneously
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 arrangement enhances space efficiency, reduces noise levels, and maintains airflow efficiency, leading to a more compact and effective vacuum cleaner design with improved performance and user experience.
Implementation Method 1
a cyclonic separation apparatus located in a path of the air flow generated by the fan
Implementation Method 2
cyclonic separation apparatus comprises at least one cyclone comprising: a cyclone body with a longitudinal axis; a cylindrical vortex finder arranged inside the cyclone body; an air inlet port arranged tangentially through a side of the cyclone body
Implementation Method 3
a pre-fan filter located in the path of the air flow downstream of the cyclonic separation apparatus and upstream of the fan
Implementation Method 4
incorporating longitudinal internal ribs in the vortex finder to dampen high-frequency sounds
Data Source
Figure 1
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AI summary
A motor, fan and cyclonic separation apparatus arrangement for a vacuum cleaner, the arrangement comprising: a motor (16) coupled to a fan (18) for generating air flow; a cyclonic separation apparatus (8) located in a path of the air flow generated by the fan; and a pre-fan filter (40) located in the path of the air flow downstream of the cyclonic separation apparatus and upstream of the fan (18), wherein the cyclonic separation apparatus comprises at least one cyclone (84) comprising: a cyclone body (85,86) with a longitudinal axis (57); an air inlet port (88) arranged tangentially through a side of the cyclone body; and an air outlet port (56) through a longitudinal end of the cyclone body, wherein the pre-fan filter (40) is arranged upon the air outlet port of the or each cyclone.