Elastic Filter Body Coiled Seal for Portable Air Filtration
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Solution Overview
Problem
Conventional filter elements for air filtration in portable devices are wasteful due to disposable sealants, leading to increased costs and waste disposal issues.
Innovation Solution
A filter element with a laminated elastic filter fabric composed of non-woven and melt-blown layers, coiled to form a central hole for elastic fitting on a support body, eliminating the need for disposable sealants and allowing for easy replacement and reuse.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a disposable sealant is used to seal the filter body, then leakage prevention is achieved, but waste disposal cost and environmental burden increase
Solution Approach 1:
The filter body's own elastic deformation capability serves as the sealing mechanism. When the filter body is installed, its elasticity causes it to deform and press against the mounting surface, creating a seal without requiring separate sealant materials. This self-sealing approach eliminates disposable sealants while maintaining leakage prevention.
Solution Approach 2:
The patent utilizes changes in the physical state of the filter body material through elastic deformation. By designing the filter body with specific elastic properties, it can dynamically adjust its shape and pressure to maintain a sealed connection during installation and operation, replacing the need for chemical sealants.
2Reliability
If the entire filter element is discarded after use, then contamination is prevented, but production cost and waste disposal cost increase
Solution Approach 1:
The filter element is divided into separable components: the reusable support body and the replaceable filter body. The support body can be retained and reused, while only the filter media needs replacement. This segmentation reduces material waste and production costs compared to discarding the entire assembly.
Solution Approach 2:
The patent implements a system where the support body structure is recovered and reused after the filter media is replaced. This recovery approach eliminates the need to discard functional components, reducing both production costs and waste disposal costs while maintaining contamination prevention through proper replacement procedures.
3Strength
If a hard filter body with sealant is used, then structural strength is maintained, but flexibility and ease of installation decrease
Solution Approach 1:
The filter body is designed with flexible elastic material that can deform during installation to conform to the mounting surface and create a seal. This flexibility greatly simplifies installation compared to rigid structures with sealants, while the material maintains sufficient structural strength to support the filter media and withstand operating conditions.
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 provides a cost-effective, efficient air filtration system with reduced waste and lower operational costs, maintaining filtration efficiency and allowing for easy installation and removal without leakage or contamination.
Implementation Method 1
The filter body includes a laminated elastic filter fabric composed of plural layers. Two sides of the elastic filter fabric are bonded together so that the filter body is coiled to form a central hole therein. The filter body is elastically fitted on the support ribs of the support body via the central hole.
Implementation Method 2
The function of the filter element is to filter particles, particulates or other impurities in the air to obtain pure air.
Implementation Method 3
The elastic filter fabric includes a first non-woven fabric layer, an activated carbon layer, at least one melt-blown fabric layer, and a second non-woven fabric layer.
Data Source
AI summary
A filter element and a filter body thereof are disclosed. The filter element includes a support body and a filter body. The filter body includes a laminated elastic filter fabric composed of plural layers. Two sides of the elastic filter fabric are bonded together so that the elastic filter fabric is coiled to form a central hole therein. The filter body is elastically fitted on the support body via the central hole. The filter body covers the vents.