Durable antibacterial and antiviral air filtering built-in part

Abstract

The utility model provides a persistent antibacterial and antiviral air filtering built-in piece which is integrally of a cylinder structure and comprises a filter element and a frame part used for fixing and supporting the filter element. The filter element is sequentially provided with a first filter element HEPA layer (1), a second filter element activated carbon layer (2) and a third filter element antibacterial and antiviral layer (3) from inside to outside, and the first filter element HEPA layer, the second filter element activated carbon layer (2) and the third filter element antibacterial and antiviral layer (3) are all of annular structures and are coaxially arranged. Through the arrangement and combination structure of the first filter element HEPA layer (1), the second filter element activated carbon layer (2) and the third filter element antibacterial and antiviral layer (3) from inside to outside in a regular sequence, large-particle dust is filtered preferentially, then harmful gas molecules are adsorbed through activated carbon, and finally residual bacteria and viruses in air are intercepted and inactivated through the antibacterial and antiviral layers, so that the air purification effect is achieved. The purpose of air purification is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of air filter devices, in particular to a long-lasting antibacterial and antiviral air filter internal component. Background Art

[0002] Air filter materials with antibacterial and antitoxic properties have become people's first choice. At present, most air filter materials rely on electrostatic adsorption and can only adsorb dust particles. The adsorption layer needs to be replaced and updated every 2 to 3 months. In addition, traditional filter materials do not have antibacterial, antibacterial and antiviral functions when used, which affects the cleaning strength of the air. The production process of some existing filter materials with antibacterial effects is complicated and does not have antiviral effects.

[0003] Air is one of the important media for pathogenic microorganisms that cause infectious diseases to invade the human body and cause diseases. Viruses are mainly spread through droplets produced by coughing, squeezing or talking, and direct contact with the secretions of infected people. Therefore, how to combine the function of air filter materials to prevent the spread of infectious viruses with air filter devices to significantly improve the use effect has become a technical problem with practical value.

[0004] At present, the existing air filter built-in components have the following disadvantages: 1. The filter net of the air filter built-in components does not have antibacterial and antiviral functions. During operation, bacteria and viruses are easily accumulated on the surface of the filter net, causing secondary pollution; 2. The air inlet and air outlet of conventional air filter built-in components have not been treated with antibacterial and antiviral treatments, which easily cause bacteria and viruses to breed; 3. The filter net of conventional air filter built-in components mostly adopts physical filtration or electrostatic adsorption methods to intercept large and small particles, bacteria and viruses in the air, and cannot actively kill harmful bacteria and viruses. Instead, it becomes an absorber and breeding ground for various bacteria, germs, microorganisms and viruses.

[0005] In view of this, it is necessary to design an improved long-lasting antibacterial and antiviral air filter internal component to solve the above problems. Utility Model Content

[0006] The utility model aims to provide a long-lasting antibacterial and antiviral air filter internal component.

[0007] In order to achieve the above-mentioned utility model purpose, the utility model provides a long-lasting antibacterial and antiviral air filter internal component, which is provided with a first filter element HEPA layer, a second filter element activated carbon layer, and a third filter element antibacterial and antiviral layer in sequence from the inside to the outside;

[0008] The long-lasting antibacterial and antiviral air filter internal component also includes a frame portion for fixing and supporting the filter element;

[0009] The frame portion includes a slot portion for respectively embedding and fixing the first filter element HEPA layer, the second filter element activated carbon layer, and the third filter element antibacterial and antiviral layer.

[0010] As a further improvement of the present invention, the long-lasting antibacterial and antiviral air filter internal component is a cylindrical structure as a whole.

[0011] As a further improvement of the present invention, the frame portion further includes upper and lower discs that are symmetrically and hollowly arranged, and a plurality of disc shaft struts that are circumferentially arranged and used to fix and support the upper and lower discs.

[0012] As a further improvement of the present invention, the first filter element HEPA layer, the second filter element activated carbon layer, and the third filter element antibacterial and antiviral layer are all annular structures, and the three are arranged on the same central axis.

[0013] As a further improvement of the present invention, the longitudinal section of the HEPA layer of the first filter element is a continuous and cyclic Z-shaped pleat arrangement.

[0014] As a further improvement of the utility model, the slot portion includes a first slot, which is composed of a first upper slot and a first lower slot that are symmetrically arranged, and is used for embedding and fixing the first filter element HEPA layer.

[0015] As a further improvement of the present invention, the slot portion includes a second slot, which is composed of a second upper slot and a second lower slot that are symmetrically arranged, and is used for engaging and fixing the second filter element activated carbon layer.

[0016] As a further improvement of the present invention, the slot portion includes a third slot, which is composed of a symmetrically arranged third upper slot and a third lower slot, and is used for embedding and fixing the third filter element antibacterial and antiviral layer.

[0017] After the slot is embedded in the corresponding filter element layer, the slot is filled with organic silicon sealant for sealing.

[0018] As a further improvement of the present invention, the diameters of the upper and lower discs are larger than the maximum diameter of the slot portion; the upper and lower discs and the slot portion are concentrically arranged and fixedly connected to each other.

[0019] As a further improvement of the present invention, the third filter element antibacterial and antiviral layer is a non-woven fabric fiber layer composed of composite fibers with a core-shell structure constructed by surface-loaded inorganic nanoparticles.

[0020] The beneficial effects of the utility model are:

[0021] 1. The long-lasting antibacterial and antiviral air filter built-in component provided by the utility model has a regularly arranged and combined structure from the inside to the outside through the first filter element HEPA layer, the second filter element activated carbon layer, and the third filter element antibacterial and antiviral layer, which preferentially filters large particles of dust, and then adsorbs harmful gas molecules through activated carbon, and finally intercepts and inactivates the bacteria and viruses remaining in the air through the antibacterial and antiviral layers, thereby achieving the purpose of air purification.

[0022] 2. The long-lasting antibacterial and antiviral air filter built-in parts provided by the utility model combine the advantages of HEPA layer and activated carbon layer in air filtration, and screen antibacterial and antiviral materials, and use nano-scale porous non-woven fabric materials (composed of composite fibers with core-shell structure constructed by surface-loaded inorganic nanoparticles) as the third filter element antibacterial and antiviral layer. The core-shell structure of inorganic nanoparticles-fibers brings high-strength interface bonding ability, which significantly improves the antibacterial and antiviral effect of the filter layer, and can maintain antibacterial and antiviral properties after 20 water washings. The high-strength antiviral interface layer based on inorganic nanoparticles is assembled with the HEPA layer and activated carbon layer to achieve the purpose of efficient antibacterial and antiviral air filtration. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the assembly structure of the long-lasting antibacterial and antiviral air filter internal component provided by the utility model.

[0024] Figure 2 This is a schematic diagram of the framework of the long-lasting antibacterial and antiviral air filter internal component provided by the utility model.

[0025] Figure 3 This is a schematic diagram of the three-layer filter element structure arrangement of the long-lasting antibacterial and antiviral air filter internal component provided by the utility model.

[0026] Figure 4 This is a schematic diagram of the fiber structure of the antibacterial and antiviral layer of the third filter element of the long-lasting antibacterial and antiviral air filter built-in component provided by the utility model.

[0027] Figure 5 This is a diagram of the antibacterial effect of the antibacterial and antiviral layer of the third filter element of the long-lasting antibacterial and antiviral air filter built-in component provided by the utility model.

[0028] Reference numerals

[0029] 1-the first filter element HEPA layer; 2-the second filter element activated carbon layer; 3-the third filter element antibacterial and antiviral layer; 4-the upper and lower discs; 5-the first upper slot; 6-the second upper slot; 7-the third upper slot; 8-the first lower slot; 9-the second lower slot; 10-the third lower slot; 11-the disc shaft support. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention is described in detail below with reference to the accompanying drawings and specific embodiments.

[0031] It should also be noted that, in order to avoid obscuring the present invention due to unnecessary details, only structures and / or processing steps closely related to the scheme of the present invention are shown in the accompanying drawings, while other details that are not closely related to the present invention are omitted.

[0032] In addition, it should be noted that the terms "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or apparatus.

[0033] See also Figure 1-3 As shown, the utility model provides a long-lasting antibacterial and antiviral air filter internal component, which is a cylindrical structure as a whole, including a filter element and a frame part for fixing and supporting the filter element.

[0034] The filter element is provided with a first filter element HEPA layer 1, a second filter element activated carbon layer 2, and a third filter element antibacterial and antiviral layer 3 in sequence from the inside to the outside.

[0035] In some specific embodiments, the first filter element HEPA layer 1, the second filter element activated carbon layer 2, and the third filter element antibacterial and antiviral layer 3 are all annular structures, and the three are arranged on the same central axis. There is a predetermined spacing between the three-layer filter element structure to construct a predetermined gas flow space, so that each filter layer can fully intercept pollutants in the air.

[0036] See also Figure 3 As shown, the longitudinal section of the first filter element HEPA layer 1 is a continuous and cyclic Z-shaped pleat arrangement, which is used to effectively increase the specific surface area of ​​the first filter element HEPA layer 1 for filtering air.

[0037] See also Figure 4 As shown, the third filter element antibacterial and antiviral layer 3 is a non-woven fabric fiber layer composed of composite fibers with a core-shell structure constructed by surface-loaded inorganic nanoparticles.

[0038] Further, the composite fiber includes a fiber matrix core layer and an inorganic nanoparticle shell layer loaded on the fiber matrix surface, and the two are combined to form a core-shell structure. The inorganic nanoparticles include, but are not limited to, one or more combinations of cuprous oxide, tungsten trioxide, and nanosilver particles. Thus, the composite fiber is endowed with excellent antibacterial and antiviral properties, such as Figure 5The third filter element antibacterial and antiviral layer 3 constructed with the core-shell structure composite fiber as raw material has stable and excellent antibacterial and antiviral performance.

[0039] See also Figure 1-2 As shown, the frame portion includes symmetrical and hollow upper and lower discs 4, a plurality of circumferentially arranged disc shaft supports 11 for fixing and supporting the upper and lower discs, and a slot portion for respectively embedding and fixing the first filter element HEPA layer 1, the second filter element activated carbon layer 2, and the third filter element antibacterial and antiviral layer 3.

[0040] The diameters of the upper and lower discs 4 are larger than the maximum diameter of the slot portion; the upper and lower discs 4 and the slot portion are concentrically arranged and fixedly connected to each other.

[0041] The filter core layers are stacked layer by layer and fixed in sequence between the slots of the frame part by interlocking from the inside to the outside, wherein the slots include a first slot, a second slot and a third slot.

[0042] The first card slot is composed of a first upper card slot 5 and a first lower card slot 8 which are symmetrically arranged, and is used for embedding and fixing the first filter element HEPA layer 1.

[0043] The second clamping groove is composed of a second upper clamping groove 6 and a second lower clamping groove 9 which are symmetrically arranged, and is used for embedding and fixing the second filter element activated carbon layer.

[0044] The third card slot is composed of a symmetrically arranged third upper card slot 7 and a third lower card slot 10, and is used for embedding and fixing the third filter element antibacterial and antiviral layer 3.

[0045] In some specific embodiments, the first card slot is closely connected to the second card slot, and the interval thickness is 0.5-1mm; the second card slot is closely connected to the third card slot, and the interval thickness is 0.5-1mm. Furthermore, the first card slot, the second card slot, and the third card slot are filled with silicone sealant after being embedded in the corresponding filter layer to ensure the stability of the air wind direction from the inside to the outside, thereby obtaining an antibacterial and antiviral air filter internal component.

[0046] The assembly process of the long-lasting antibacterial and antiviral air filter internal component provided by the utility model is as follows:

[0047] like Figure 3 As shown, first, fold the HEPA layer in a Z-shape to ensure that the size of each fold is consistent. After repeating the Z-shape fold several times, place the first filter element HEPA layer 1 with a continuous and cyclic Z-shape pleat in the longitudinal section vertically along the folding direction, and load the two upper and lower discs 4 onto the upper and lower ends of the first filter element HEPA layer 1 respectively, and adjust the upper and lower ends of the first filter element HEPA layer 1 to fit into the first upper slot 5 and the first lower slot 8 respectively.

[0048] According to the height spacing of the disc shaft support 11 between the upper and lower discs 4 and the circumference of the second slot, cut the second filter element activated carbon layer 2 of appropriate length and width, place the lower end at an angle and embed it into the second lower slot 9, and use an external sharp tool to insert the upper end of the second filter element activated carbon layer into the second upper slot 6 to complete the installation and adjustment of the second activated carbon filter layer 2.

[0049] The surface-loaded inorganic nanoparticles are used to construct a core-shell structure fiber antibacterial and antiviral filter layer, that is, after the third filter element antibacterial and antiviral layer 3 is prepared by the transient high-temperature method, the third filter element antibacterial and antiviral layer 3 of appropriate length and width is cut according to the circumference of the third slot, and embedded in the third lower slot 10, and the upper end of the third filter element antibacterial and antiviral layer 3 is embedded in the third upper slot 7 to complete the adjustment and installation of the third slot.

[0050] The disc shaft support 11 is fixed between the upper and lower discs to stabilize the vertical structure of the three-layer filter layer. The gap between each filter layer and the corresponding slot is injected with organic silicon sealing resin to ensure the filtering effectiveness.

[0051] The long-lasting antibacterial and antiviral air filter built-in component provided by the utility model combines the advantages of the HEPA layer and the activated carbon layer in air filtration, and screens the antibacterial and antiviral materials, uses the nano-scale porous non-woven fabric material as the third filter element antibacterial and antiviral layer 3, and organically arranges the three filter layers as follows: Figure 3 The three-layer composite filter layer shown, from inside to outside, is the first filter element HEPA layer 1, the second filter element activated carbon layer 2, and the third filter element antibacterial and antiviral layer 3.

[0052] Among them, the HEPA layer set with Z-shaped pleats is the first layer, which increases the amount of particles screened out by the initial layer. The activated carbon will adsorb the harmful gas molecules passing through the second layer. The last step is to load inorganic nanoparticles on the surface to construct a core-shell structure fiber antibacterial and antiviral filtration layer while intercepting and disinfecting bacteria.

[0053] The working principle of the long-lasting antibacterial and antiviral air filter internal component provided by the utility model is as follows:

[0054] like Figure 1-3 The built-in component shown is suitable for some household air purifier filter elements. The air is driven through the purifier shell to be purified inside the hollow circular shaft of the built-in component and flows from the inside to the outside. When the air first passes through the first filter element HEPA layer 1, due to its electrostatic retention effect, most of the dust and bacteria larger than 0.5 microns are filtered out. After the initial HEPA screening, there are no large particles of dust, hair, etc. in the air.

[0055] When diffused to the outer layer with the wind, the second filter element activated carbon layer 2 absorbs gases such as formaldehyde.

[0056] The third filter element antibacterial and antiviral layer 3 will destroy the bacterial cell membrane and viral protein shell of the residual bacteria and viruses in the gas through the ROS active oxygen mechanism, attack the internal genetic material, inhibit the proliferation of bacteria and viruses to achieve antibacterial and antiviral effects, and achieve clean and fresh air after purification by the above air filtration layers.

[0057] In summary, the utility model provides a long-lasting antibacterial and antiviral air filter built-in component, which is a cylindrical structure as a whole, including a filter element and a frame part for fixing and supporting the filter element. The filter element is provided with a first filter element HEPA layer 1, a second filter element activated carbon layer 2, and a third filter element antibacterial and antiviral layer 3 from the inside to the outside, and the above three are all annular structures, and the three are arranged on the same central axis. Through the first filter element HEPA layer 1, the second filter element activated carbon layer 2, and the third filter element antibacterial and antiviral layer 3, which are arranged and combined in a regular order from the inside to the outside, large particles of dust are preferentially filtered, and then the harmful gas molecules are adsorbed by activated carbon. Finally, the antibacterial and antiviral layers are used to intercept and inactivate the bacteria and viruses remaining in the air, so as to achieve the purpose of air purification.

[0058] The above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model is described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model.

Claims

1. A long-lasting antibacterial and antiviral air filter internal component, characterized in that: From inside to outside, the first filter element HEPA layer, the second filter element activated carbon layer, and the third filter element antibacterial and antiviral layer are arranged in sequence; The long-lasting antibacterial and antiviral air filter internal component also includes a frame portion for fixing and supporting the filter element; The frame portion includes a slot portion for respectively embedding and fixing the first filter element HEPA layer, the second filter element activated carbon layer, and the third filter element antibacterial and antiviral layer.

2. The long-lasting antibacterial and antiviral air filter internal component according to claim 1, characterized in that: The long-lasting antibacterial and antiviral air filter internal component is a cylindrical structure as a whole.

3. The long-lasting antibacterial and antiviral air filter internal component according to claim 1, characterized in that: The frame part also includes upper and lower circular discs which are symmetrically and hollowly arranged, and a plurality of circular disc shaft supports which are arranged around the circumference and are used for fixing and supporting the upper and lower circular discs.

4. The long-lasting antibacterial and antiviral air filter internal component according to claim 1, characterized in that: The first filter element HEPA layer, the second filter element activated carbon layer, and the third filter element antibacterial and antiviral layer are all annular structures, and the three are arranged on the same central axis.

5. The long-lasting antibacterial and antiviral air filter internal component according to claim 1, characterized in that: The longitudinal section of the HEPA layer of the first filter element is a continuous and cyclic Z-shaped pleat arrangement.

6. The long-lasting antibacterial and antiviral air filter internal component according to claim 1, characterized in that: The slot portion includes a first slot, which is composed of a first upper slot and a first lower slot that are symmetrically arranged, and is used for engaging and fixing the first filter element HEPA layer.

7. The long-lasting antibacterial and antiviral air filter internal component according to claim 1, characterized in that: The slot portion includes a second slot, which is composed of a second upper slot and a second lower slot that are symmetrically arranged, and is used for engaging and fixing the second filter element activated carbon layer.

8. The long-lasting antibacterial and antiviral air filter internal component according to claim 1, characterized in that: The card slot portion includes a third card slot, which is composed of a symmetrically arranged third upper card slot and a third lower card slot, and is used for embedding and fixing the third filter element antibacterial and antiviral layer.

9. The long-lasting antibacterial and antiviral air filter inner component according to claim 3, characterized in that: The diameters of the upper and lower circular discs are larger than the maximum diameter of the clamping groove portion; the upper and lower circular discs and the clamping groove portion are concentrically arranged and fixedly connected to each other.

10. The long-lasting antibacterial and antiviral air filter internal component according to claim 1, characterized in that: The third filter element antibacterial and antiviral layer is a non-woven fabric fiber layer composed of composite fibers with a core-shell structure formed by surface-loaded inorganic nanoparticles.

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