Flexible Pleated Vacuum Filter for Dry Dust Removal
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Solution Overview
Problem
Existing vacuum cleaner filters are difficult to clean, often require water for cleaning, and may become clogged, leading to reduced efficiency and the need for frequent replacement.
Innovation Solution
A filter unit with an elongated, partly flexible filter body and a dust removing means that collapses and expands, featuring pleats to increase surface area and a dry cleaning mechanism that twists the filter body to effectively dislodge dust, allowing for easy and efficient cleaning without water.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If the filter body is made rigid to maintain structural stability, then the filter body can maintain its shape and filtering surface, but it becomes difficult to collapse and expand for effective dust removal
Solution Approach 1:
The filter body is designed with dynamic characteristics, being flexible rather than rigid, allowing it to collapse and expand during the cleaning process. This dynamic structure enables the filter body to be compressed for dust removal and then return to its original shape, maintaining both structural integrity and cleaning effectiveness.
Solution Approach 2:
The physical state of the filter body is changed from rigid to flexible, allowing it to undergo deformation during cleaning operations. The flexible material properties enable the filter body to be compressed and expanded without damage, facilitating effective dust removal while maintaining structural stability.
2Productivity
If water is used to clean the filter to remove adhered dust effectively, then dust removal efficiency is improved, but the filter becomes unusable during the drying time required
Solution Approach 1:
The cleaning mechanism is changed from chemical/water-based cleaning to mechanical cleaning. The flexible filter body is compressed and expanded mechanically to dislodge and remove adhered dust particles, eliminating the need for water and subsequent drying time.
Solution Approach 2:
The cleaning process uses periodic compression and expansion of the flexible filter body. This periodic mechanical action effectively removes dust particles through repeated deformation cycles, providing efficient dry cleaning without requiring water or drying time.
3Productivity
If the filter surface area is increased to reduce clogging, then filtering capacity is improved, but the filter body becomes more complex and harder to clean
Solution Approach 1:
The filter body is designed with a three-dimensional flexible structure that can be compressed in the radial direction. This dimensional approach allows a large surface area to be collapsed into a compact form, increasing filtering capacity while maintaining ease of cleaning through simple radial compression.
Solution Approach 2:
The filter body uses flexible material that can be easily compressed and expanded. This flexible shell structure provides large surface area for filtering while remaining simple in construction and easy to clean through mechanical deformation, avoiding complex internal structures.
4Ease of operation
If the filter body is made flexible to enable collapse and expand for dust removal, then ease of cleaning is improved, but the filter body may lose structural stability and filtering effectiveness
Solution Approach 1:
The material properties of the filter body are carefully selected to achieve optimal flexibility while maintaining structural stability. The material is flexible enough to allow collapse and expansion for cleaning but stable enough to maintain filtering effectiveness during normal operation.
Solution Approach 2:
The filter body is designed with dynamic characteristics that allow it to adapt between different states: stable during filtering operations and flexible during cleaning operations. This dynamic design maintains structural stability when needed while enabling easy cleaning when required.
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 filter unit maintains high vacuum cleaning capacity by reducing clogging and allowing for rapid, effective dry cleaning, extending the filter's lifespan and reducing the need for frequent replacements.
Implementation Method 1
The filter body is flexible and the vacuum cleaner further comprises dust removing means configured to collapse and expand the flexible filter body in response to a force applied to the dust removing means
Implementation Method 2
the filter body comprises pleats extending along the filter body
Data Source
AI summary
A filter unit (100) for a vacuum cleaner includes a filter body (110) and a dust removing means (120). The filter body is elongated and at least partly flexible and the dust removing means is configured to collapse and expand the filter body in response to a force applied on the dust removing means. The filter body comprises pleats (115) extending along the filter body. The filter unit of the present invention is advantageous in that it reduces clogging and thereby increases the efficiency of the vacuum cleaner.