Air conditioner filtering non-woven fabric

Abstract

The utility model discloses an air conditioner filtering non-woven fabric, which relates to the technical field of air conditioner filtering, and comprises a rough filtering layer, a rough filtering layer, a rough filtering layer, a rough filtering layer, a rough filtering layer, a rough filtering layer, a rough filtering layer, a rough filtering layer and a rough filtering layer, and the rough filtering layer is positioned on the outermost layer and is formed by disordered and staggered arrangement of fibers with non-uniform thickness to form larger filtering gaps for intercepting large-volume pollutants in air; the activated carbon adsorption layer is laid behind the rough filtration layer and is made of a fiber material rich in activated carbon particles, and activated carbon is distributed among fibers and used for removing peculiar smell, harmful gas and small particles in air; the nanofiber fine filtration layer is arranged on one side, far away from the coarse filtration layer, of the activated carbon adsorption layer, and a fine filtration structure is formed by arranging nanofibers with extremely small diameters and is used for intercepting tiny-volume pollutants in the air; the bottom layer is located on the innermost layer, is formed by weaving high-temperature-resistant and acid-base-corrosion-resistant fiber materials, has tight weaving textures and is used for providing a supporting foundation; a multi-layer filtering system is formed.

Description

Technical Field

[0001] This utility model relates to the field of air conditioning filtration technology, specifically to an air conditioning filter nonwoven fabric. Background Technology

[0002] As people's living standards improve and they pay more attention to indoor air quality, the filtration performance of air conditioners, as important devices for regulating indoor temperature and air circulation, is receiving increasing attention.

[0003] Traditional air conditioner filter materials are mostly simple in structure and have limited function. For example, common pre-filters often use ordinary fiber mesh, which can only intercept larger particles of dust and impurities. Although these filters are inexpensive, they have almost no ability to filter or adsorb fine particles, harmful gases, and odors in the air. In actual use, a large number of fine particles and harmful gases can still pass through the filter and enter the room, posing a potential threat to human health.

[0004] Traditional filter materials, due to their large fiber diameter, cannot form a sufficiently dense filter structure to effectively filter PM2.5 or even smaller particles in the air. This makes it difficult to effectively control the concentration of fine particles in indoor air.

[0005] Furthermore, existing air conditioning filter materials also have shortcomings in terms of durability. When faced with complex indoor environments, such as high temperature, high humidity, or the presence of corrosive acids or alkalis, the performance of the filter materials is easily degraded, and their service life is shortened. For example, some ordinary fiber materials are prone to deformation and mold growth in high temperature and humidity environments, resulting in a significant reduction in filtration efficiency and failing to meet users' needs for long-term stable use.

[0006] In conclusion, the development of a structurally sound, functionally comprehensive, stable, and durable air conditioning filter material is urgently needed to meet people's pursuit of high-quality indoor air. The novel air conditioning filter nonwoven fabric described in this article is designed specifically to address these issues and is expected to achieve excellent application results in the field of air conditioning filtration. Utility Model Content

[0007] To overcome the shortcomings mentioned above, this utility model aims to provide a technical solution that can solve the above problems.

[0008] An air conditioning filter nonwoven fabric, comprising:

[0009] The coarse filter layer, located on the outermost layer, is composed of randomly interwoven fibers of varying coarseness, forming large filtration gaps to intercept large-volume pollutants in the air.

[0010] An activated carbon adsorption layer, which is laid after the coarse filter layer, is composed of a fibrous material rich in activated carbon particles, wherein the activated carbon is distributed between the fibers, and is used to remove odors, harmful gases and fine particles from the air.

[0011] The nanofiber fine filter layer is disposed on the side of the activated carbon adsorption layer away from the coarse filter layer. It is composed of nanofibers with extremely fine diameter arranged to form a dense filter structure, which is used to intercept small-volume pollutants in the air.

[0012] The bottom layer, located at the innermost layer, is woven from a high-temperature resistant and acid / alkali corrosion resistant fiber material with a tight weave texture, and is used to provide a supporting foundation.

[0013] As a further embodiment of this invention: an antibacterial decomposition layer is provided between the activated carbon adsorption layer and the nanofiber fine filtration layer, the antibacterial decomposition layer being made of fibers loaded with an antibacterial catalyst.

[0014] As a further aspect of this utility model: the antibacterial decomposition layer includes a base fiber as a skeleton and a functional fiber loaded with an antibacterial catalyst, wherein the functional fiber is tightly attached to the base fiber in a spiral winding manner.

[0015] As a further aspect of this invention: the antibacterial catalyst is uniformly dispersed in the form of nano-sized particles inside and on the surface of the functional fiber, achieving a stable bond through the dual effects of chemical bonding and physical adsorption.

[0016] As a further aspect of this utility model: the surface of the nanofibers in the nanofiber filtration layer is hydrophilically treated to form a microscopic hydrophilic protrusion structure.

[0017] As a further embodiment of this utility model: the bottom surface is provided with an antistatic coating structure.

[0018] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0019] The coarse filter layer, activated carbon adsorption layer, nanofiber fine filter layer, and bottom layer work in sequence. The coarse filter layer first intercepts large-volume pollutants, the activated carbon adsorption layer removes odors, harmful gases, and some small particles, the nanofiber fine filter layer further filters small-volume pollutants, and the bottom layer gives the entire filter non-woven fabric good stability and durability, forming a complete, multi-layered filtration system. This comprehensive filtration method enables the air conditioner to purify indoor air more effectively. Compared with traditional filter materials, it can significantly improve the removal capacity of various pollutants, effectively improve indoor air quality, and meet people's needs for clean air.

[0020] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the hierarchical distribution structure of this utility model;

[0023] Figure 2 This is a schematic diagram of the layered distribution structure of the added antibacterial decomposition layer in this utility model.

[0024] The reference numerals and names in the figure are as follows:

[0025] 1. Coarse filtration layer; 2. Activated carbon adsorption layer; 3. Nanofiber fine filtration layer; 4. Bottom layer; 5. Antibacterial decomposition layer; 6. Basic fiber; 7. Functional fiber; 8. Antibacterial catalyst; 9. Hydrophilic protrusion structure; 10. Antistatic coating structure. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Please see Figure 1-2 In this embodiment of the utility model, an air conditioning filter nonwoven fabric includes:

[0028] Coarse filter layer 1, located on the outermost layer, is composed of randomly interwoven fibers of varying thicknesses, forming large filtration gaps to intercept large-volume pollutants in the air;

[0029] Activated carbon adsorption layer 2, which is laid after coarse filter layer 1, is composed of fibrous material rich in activated carbon particles, wherein activated carbon is distributed between the fibers, and is used to remove odors, harmful gases and fine particles from the air.

[0030] The nanofiber fine filter layer 3 is disposed on the side of the activated carbon adsorption layer 2 away from the coarse filter layer 1. It is formed by the arrangement of nanofibers with extremely fine diameter to form a dense filter structure, which is used to intercept small-volume pollutants in the air.

[0031] The bottom layer 4, located at the innermost layer, is woven from a high-temperature resistant and acid / alkali corrosion resistant fiber material with a tight weave texture, and is used to provide a support base.

[0032] In this utility model, the traditional pre-filter uses ordinary fiber filter mesh, which has limited interception effect on large-volume pollutants and cannot meet the growing demand for air purification. The coarse filter layer 1 of this design is located on the outermost layer and is specially made of fibers of uneven thickness arranged in a random interlaced manner. This arrangement utilizes the irregular gaps between the fibers, so that large-volume pollutants, such as hair and dust clumps, cannot pass through these gaps smoothly during airflow due to their large size and mass, and are thus intercepted outside, providing preliminary purification for subsequent filtration stages and reducing the risk of clogging of subsequent filter layers.

[0033] To address the problem that traditional filter materials are insufficient in removing odors, harmful gases, and fine particles, an activated carbon adsorption layer 2 is incorporated. This activated carbon adsorption layer 2 is composed of fibrous material rich in activated carbon particles. The activated carbon exists in a dispersed form between the fibers. Activated carbon has a rich microporous structure and a large specific surface area, which makes it highly adsorbent of odor molecules and harmful gas molecules. When air passes through, these pollutant molecules are captured by the micropores of the activated carbon, thereby achieving the purpose of purifying the air. At the same time, some fine particles are also adsorbed on the surface of the activated carbon, further improving the filtration efficiency for fine particles.

[0034] Traditional filter materials, due to their large fiber diameter, are difficult to form a sufficiently fine filter structure and cannot effectively filter tiny particles in the air, such as PM2.5 or even smaller particles. The nanofiber fine filter layer 3 is made of nanofibers with extremely fine diameters. The nano-scale fiber diameter allows the fibers to form extremely fine filter pores. The size of these pores is comparable to the size of the tiny particles. According to the sieving principle, the tiny particles are intercepted on the surface of the filter layer when they pass through, thereby achieving efficient filtration of small-volume pollutants and significantly improving the filtration accuracy of tiny particles in the air.

[0035] Considering the poor durability of existing air conditioning filter materials in complex indoor environments, a bottom layer 4 was designed. This bottom layer 4 is woven from high-temperature resistant and acid / alkali corrosion resistant fiber material. The tight weave texture increases the strength and stability of the material. In high-temperature environments, this fiber material can maintain its physical properties and will not deform or melt due to temperature increases. In high-humidity environments, the fiber material will not soften or mold due to moisture absorption. When exposed to acidic or alkaline corrosive gases, the chemical stability of the fiber material can effectively resist corrosion, thus providing a stable support foundation for the entire filter nonwoven fabric and ensuring that each filter layer can work normally under different environmental conditions.

[0036] In summary, the coarse filter layer 1, activated carbon adsorption layer 2, nanofiber fine filter layer 3, and bottom layer 4 work sequentially. The coarse filter layer 1 first intercepts large-volume pollutants, the activated carbon adsorption layer 2 removes odors, harmful gases, and some small particles, the nanofiber fine filter layer 3 further filters small-volume pollutants, and the bottom layer 4 gives the entire filter nonwoven fabric good stability and durability, forming a complete, multi-layered filtration system. This comprehensive filtration method enables the air conditioner to purify indoor air more effectively. Compared with traditional filter materials, it can significantly improve the removal capacity of various pollutants, effectively improve indoor air quality, and meet people's demand for clean air.

[0037] In this embodiment of the present invention, an antibacterial decomposition layer 5 is further provided between the activated carbon adsorption layer 2 and the nanofiber fine filtration layer 3. The antibacterial decomposition layer 5 is made of fibers loaded with an antibacterial catalyst 8.

[0038] During air conditioning operation, the humid environment is prone to the growth of various bacteria, molds and other microorganisms. These microorganisms spread indoors with the air circulation, posing a threat to human health. Traditional air conditioning filter materials lack effective antibacterial means and cannot solve this problem.

[0039] To address the aforementioned issues, an antibacterial decomposition layer 5 is provided between the activated carbon adsorption layer 2 and the nanofiber fine filtration layer 3. This antibacterial decomposition layer 5 is made of fibers loaded with an antibacterial catalyst 8. The antibacterial function is achieved by utilizing the special properties of the antibacterial catalyst 8. Specifically, the antibacterial catalyst 8 can interact with biomolecules such as proteins and nucleic acids on the surface of bacteria and other microorganisms, destroying the cell structure and physiological functions of microorganisms, thereby inhibiting their growth and reproduction. At the same time, under conditions such as light, the antibacterial catalyst 8 may trigger a photocatalytic reaction, generating highly oxidizing reactive oxygen species. These reactive oxygen species can further decompose microorganisms and their generated organic pollutants, converting them into harmless small molecules, thereby achieving the dual purpose of antibacterial and pollutant decomposition.

[0040] In this embodiment of the present invention, the antibacterial decomposition layer 5 includes a base fiber 6 as a skeleton and a functional fiber 7 loaded with an antibacterial catalyst 8. The functional fiber is tightly attached to the base fiber 6 in a spiral winding manner.

[0041] The base fiber 6 serves as the skeleton of the antibacterial decomposition layer 5, providing a stable physical support structure for the entire antibacterial decomposition layer 5. The base fiber 6 possesses a certain strength and flexibility. The functional fiber 7 is tightly attached to the base fiber 6 in a spiral winding manner. This winding method can greatly increase the contact area between the functional fiber 7 and the base fiber 6, making the two tightly bonded and not easily separated. At the same time, the functional fiber 7 is loaded with the antibacterial catalyst 8. The spiral winding layout allows the antibacterial catalyst 8 to be evenly distributed throughout the entire antibacterial decomposition layer 5. When air flows through the antibacterial decomposition layer 5, the antibacterial catalyst 8 can fully contact the microorganisms in the air, thereby more effectively exerting its antibacterial and pollutant decomposition effects.

[0042] The synergistic cooperation between the base fiber 6 and the functional fiber 7 ensures the structural stability of the antibacterial decomposition layer 5 on the one hand, and maximizes the effect of the antibacterial catalyst 8 on the other. The base fiber 6 bears external forces, while the functional fiber 7 focuses on antibacterial activity. The two complement each other and work together to realize the function of the antibacterial decomposition layer 5.

[0043] In this embodiment of the invention, the antibacterial catalyst 8 is uniformly dispersed in the form of nano-sized particles inside and on the surface of the functional fiber 7, achieving a stable bond through the dual effects of chemical bonding and physical adsorption.

[0044] The large specific surface area and high activity of nano-sized particles enable the antibacterial catalyst 8 to react with microorganisms more quickly and effectively, disrupting their cell structure and physiological functions, thereby significantly improving antibacterial efficiency. Chemical bonding forms a strong chemical connection between the antibacterial catalyst 8 and the functional fiber 7 through a chemical reaction. This connection gives both a strong binding force, making the adhesion of the antibacterial catalyst 8 to the fiber more stable and less prone to detachment. Physical adsorption, based on intermolecular van der Waals forces, further enhances the interaction between the antibacterial catalyst 8 and the functional fiber 7. Through the synergy of these two effects, the antibacterial catalyst 8 can be firmly bound to the functional fiber 7, ensuring that the antibacterial catalyst 8 remains in an effective position and functions effectively in various complex environments and during long-term use.

[0045] In this embodiment of the present invention, the surface of the nanofibers in the nanofiber filtration layer 3 is hydrophilically treated to form a micro-hydrophilic protrusion structure 9.

[0046] Fine particulate pollutants in the air, especially some water-soluble substances, are more easily adsorbed and captured when they come into contact with hydrophilic surfaces. By treating the surface of the nanofibers in the nanofiber fine filter layer 3 with hydrophilicity, the interaction between the nanofibers and fine particles is changed. When air flows through the nanofiber fine filter layer 3, the hydrophilic nanofiber surface can more effectively adsorb fine particles containing moisture or water-soluble substances, thereby improving the filtration efficiency for such pollutants.

[0047] The construction of micro-hydrophilic protrusions 9 further increases the specific surface area of ​​nanofibers. These protrusions provide more adsorption sites, which increases the contact area between nanofibers and microparticles and enhances physical adsorption.

[0048] In this embodiment of the present invention, the bottom layer 4 is provided with an antistatic coating structure 10.

[0049] In one embodiment, the antistatic coating structure 10 is composed of conductive nanomaterials and polymers: the nanomaterials have unique electrical properties, such as high conductivity, which can provide channels for electron conduction, while the polymers play a role in bonding and supporting, uniformly fixing the nanomaterials on the surface of the bottom layer 4 to form a continuous and stable coating. When static electricity is generated, the conductive channels in the nanomaterials can quickly conduct the charge away, preventing static electricity from accumulating on the surface of the bottom layer 4, thereby eliminating the adverse effects of static electricity.

[0050] In one embodiment, an antistatic coating structure 10 can be formed by applying an antistatic agent to the surface of the bottom layer 4 by means of spraying or the like.

[0051] Preferably, the layers can be connected sequentially through processes such as hot pressing and lamination to form a complete air conditioning filter nonwoven fabric.

[0052] Preferably, the manufacturing process of the antibacterial decomposition layer 5 can be as follows:

[0053] Material preparation: Select basic fibers such as polyester fiber, as well as antibacterial agents such as nano silver particles and titanium dioxide;

[0054] Fiber pretreatment: Wash and activate the base fiber 6 to enhance its binding ability with antibacterial agents;

[0055] Antibacterial agent loading and spiral winding: Functional fibers 7 loaded with antibacterial agent are spirally wound onto base fibers 6 that are moving at a uniform speed using a fiber winding device with a set pitch and angle, and are initially fixed with a small amount of adhesive or by heating.

[0056] Drying and curing: Dry in an oven at 60-120℃ for 1-3 hours to allow the antibacterial agent to bond tightly with the fiber;

[0057] Quality inspection: Test antibacterial properties and physical properties, and observe the microstructure under a microscope to ensure that the quality meets the standards.

[0058] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention.

Claims

1. An air conditioning filter nonwoven fabric, characterized in that, Including: The coarse filter layer, located on the outermost layer, is composed of randomly interwoven fibers of varying coarseness, forming large filtration gaps to intercept large-volume pollutants in the air. An activated carbon adsorption layer, which is laid after the coarse filter layer, is composed of a fibrous material rich in activated carbon particles, wherein the activated carbon is distributed between the fibers, and is used to remove odors, harmful gases and fine particles from the air. The nanofiber fine filter layer is disposed on the side of the activated carbon adsorption layer away from the coarse filter layer. It is composed of nanofibers with extremely fine diameter arranged to form a dense filter structure, which is used to intercept small-volume pollutants in the air. The bottom layer, located at the innermost layer, is woven from a high-temperature resistant and acid / alkali corrosion resistant fiber material with a tight weave texture, and is used to provide a supporting foundation.

2. The air conditioning filter nonwoven fabric according to claim 1, characterized in that, An antibacterial decomposition layer is also provided between the activated carbon adsorption layer and the nanofiber fine filtration layer. The antibacterial decomposition layer is made of fibers loaded with antibacterial catalysts.

3. The air conditioning filter nonwoven fabric according to claim 2, characterized in that, The antibacterial decomposition layer includes a base fiber as a skeleton and functional fibers loaded with antibacterial catalysts, wherein the functional fibers are tightly attached to the base fiber in a spiral winding manner.

4. The air conditioning filter nonwoven fabric according to claim 3, characterized in that, The antibacterial catalyst is uniformly dispersed in the form of nano-sized particles inside and on the surface of the functional fiber, achieving a stable bond through the dual effects of chemical bonding and physical adsorption.

5. The air conditioning filter nonwoven fabric according to claim 1, characterized in that, The nanofibers of the nanofiber filtration layer are hydrophilically treated to form a microscopic hydrophilic protrusion structure.

6. The air conditioning filter nonwoven fabric according to claim 1, characterized in that, The bottom surface is provided with an antistatic coating structure.

Images