A multi-layer microporous foam lightweight high efficiency air filter

By employing a gradient filtration structure and easy replacement design in a multi-layer microporous foam filter, the problems of insufficient filtration efficiency and dust holding capacity in existing technologies are solved, achieving a highly efficient and lightweight air filtration effect.

CN224485364UActive Publication Date: 2026-07-14WUXI YUJING PURIFICATION TECH CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
WUXI YUJING PURIFICATION TECH CO LTD
Filing Date
2025-07-29
Publication Date
2026-07-14

AI Technical Summary

Technical Problem

Existing microporous foam material air filters typically employ single-layer or multi-layer structures, but the microporous structure and performance parameters of each layer are mismatched, resulting in insufficient filtration efficiency and dust holding capacity.

Method used

A multi-layer microporous foam filter is designed, comprising an outer layer, a filter layer, and an inner layer. The outer layer is a protective layer, the filter layer has a gradient microporous structure, and the inner layer is a support layer. The layers are tightly bonded together with hot melt adhesive to form a gradient filtration structure, and the filter element can be quickly replaced by a snap-fit ​​frame.

Benefits of technology

It improves filtration efficiency and dust holding capacity, enabling graded filtration of pollutants of different particle sizes. Its lightweight design also facilitates filter replacement and installation.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224485364U_ABST
    Figure CN224485364U_ABST
Patent Text Reader

Abstract

The utility model relates to filter technical field, and disclose a kind of multilayer microporous foam lightweight high-efficiency air filter, including installation frame, filter replacement component, connecting pipe and mounting bracket, the filter replacement component is installed in the inside of installation frame, the connecting pipe is set in the both ends of installation frame, the mounting bracket is fixedly connected in the both sides of installation frame bottom, the filter replacement component includes top plate, clamping frame, microporous foam filter element and fixed peg.This multilayer microporous foam lightweight high-efficiency air filter, by setting the multilayer structure of outer layer, filter layer and inner layer, the protective layer of outer layer can block larger particle pollutant, protect internal structure;The gradient microporous aperture design of filter layer can realize the fractional filtration to different particle size pollutants, improve filtration efficiency and dust capacity;The support layer of inner layer guarantees the structural stability of filter, while each layer adopts microporous foam material, with the characteristics of lightweight, meet the demand of lightweight.
Need to check novelty before this filing date? Find Prior Art