A large-area contactable NCCO nanofiltration core assembly and a method for using the same

Abstract

The application provides a NCCO nanometer filter element assembly capable of large-area contact with inhaled air and a use method thereof, and the assembly comprises: filter element subassemblies, the number of the filter element subassemblies is several, and the several filter element subassemblies are arranged above several air inlet portions respectively; two telescopic portions are symmetrically arranged on the left side and the right side of the filter element subassembly, the upper end and the lower end of the two telescopic portions form an air outlet and an air inlet respectively, and the width of the air outlet is smaller than the width of the air inlet; and a driving mechanism is connected with the filter element subassembly and drives the telescopic portion to telescopically adjust. The method comprises the following steps: when the formaldehyde concentration increases, the purification contact surface is increased, and the size of the air outlet is reduced; and when the formaldehyde concentration decreases, the size of the air outlet is increased, and the purification contact surface is reduced. Through the telescopic design of the filter element subassembly and the driving of the driving mechanism, the telescopic portion is telescopically driven, and the size of the purification contact surface is freely adjusted.

Description

Technical Field

[0001] This invention relates to an NCCO nanofilter assembly that can make large-area contact with inhaled air and its method of use. Background Technology

[0002] NCCO is a new type of air purification technology, short for "nano-photocatalytic formaldehyde removal technology". It has the advantages of high efficiency, safety and greenness, and is widely used in the field of indoor air purification, such as in air purifiers.

[0003] Currently, in existing technologies, NCCO nanofiber filter elements and other filter elements in air purifiers generally adopt a flat shape, as shown in the existing patent document "CN105194943B A filter element for an environmentally friendly air purifier". With the filter element element designed as described above, the size of its purification contact surface is fixed, and the contact surface is limited by the size of the space inside the air purifier. The contact surface may be insufficient. When facing different concentrations of formaldehyde, the contact surface cannot be freely switched. In high-concentration formaldehyde environments, the contact surface may be insufficient, resulting in poor purification effect. Summary of the Invention

[0004] In order to solve the technical problems of fixed and unchangeable purification contact surface size and insufficient contact surface of traditional filter cartridges, this invention provides an NCCO nano filter cartridge that can make large-area contact with inhaled air and its usage method.

[0005] The present invention solves the above-mentioned technical problems through the following technical solutions:

[0006] This invention provides an NCCO nanofilter assembly capable of contacting a large area of ​​inhaled air, comprising a filter main board with several equally spaced air inlets; further comprising: several filter sub-components, each disposed above one of the air inlets; each filter sub-component has two symmetrically arranged telescopic portions on its left and right sides, the upper and lower ends of the two telescopic portions forming an exhaust port and an air inlet respectively, with the exhaust port width being smaller than the air inlet width; and a drive mechanism connected to the filter sub-components to drive the telescopic portions to extend and retract.

[0007] Preferably, the air inlet includes a second nano-photocatalytic mesh and at least one connecting strip, wherein the second nano-photocatalytic mesh is fixedly installed on the connecting strip.

[0008] Preferably, the filter element main board further includes a housing; the number of housings is several, and the several housings and the several air inlets are alternately distributed, and the connecting strip on the air inlet is fixedly connected to the housing, and a first nano-photocatalytic mesh is filled in the position of the housing facing away from the filter element component.

[0009] Preferably, the telescopic part includes a fixed sealing plate, a third nanometer photocatalytic mesh, a movable sealing plate, and a fourth nanometer photocatalytic mesh; the third nanometer photocatalytic mesh is laid on the plate surface of the fixed sealing plate facing the air inlet, the fourth nanometer photocatalytic mesh is laid on the plate surface of the movable sealing plate facing the air inlet, a sliding mechanism is provided between the bottom of the movable sealing plate and the plate surface of the fixed sealing plate, the fourth nanometer photocatalytic mesh is in close contact with the fixed sealing plate, and the bottom of the fixed sealing plate is fixed to the filter element main board.

[0010] Preferably, the filter element further includes a flexible nano-photocatalytic mesh disposed at the exhaust port, wherein the side of the flexible nano-photocatalytic mesh is fixedly connected to the upper end of the fourth nano-photocatalytic mesh of the telescopic part.

[0011] Preferably, the sliding mechanism includes a slide rail and a slider; the slide rail is opened on the plate surface of the fixed sealing plate facing away from the third nanometer photocatalytic network, the slider is slidably connected to the slide rail, and the slider is fixedly connected to the lower end of the movable sealing plate.

[0012] Preferably, the driving mechanism includes a plurality of electric push rods fixedly mounted on the filter element main board, the plurality of electric push rods being respectively connected to a plurality of filter element sub-components, and the output end of the electric push rods being fixedly connected to the lower end of the movable sealing plate of the telescopic part in the filter element sub-component; a telescopic connecting rod is provided between the upper sides of the movable sealing plates of the two telescopic parts in the filter element sub-component, the telescopic connecting rod including a straight rod and a sleeve; the straight rod is clearance-fitted into the sleeve, one end of the straight rod being fixedly connected to the upper side of the movable sealing plate of the left telescopic part in the filter element sub-component, and one end of the sleeve being fixedly connected to the upper side of the movable sealing plate of the right telescopic part in the filter element sub-component.

[0013] Preferably, the driving mechanism includes an electric push rod fixedly mounted on the filter element main board and a connecting rod. The output end of the electric push rod is fixedly connected to the lower end of the movable sealing plate of the telescopic part in any of the filter element sub-components. The connecting rod is fixedly connected to the upper side of any of the movable sealing plates. The upper side of the other movable sealing plates is provided with a sliding sleeve, and the sliding sleeve is slidably sleeved with the connecting rod.

[0014] Preferably, the NCCO nanofiber filter assembly is installed in the purifier housing; the driving mechanism is a manual drive component, which includes a screw, a slide rod, a sliding ring, and a screw hole opened on the purifier housing; the screw is threadedly connected to the screw hole, one end of the screw is rotatably connected to one end of the slide rod, the sliding ring is slidably sleeved on the slide rod, and the sliding ring is fixedly connected to the upper end of the movable sealing plate.

[0015] Furthermore, the present invention provides a method for using an NCCO nanofiber filter assembly, the method comprising the following steps:

[0016] 1. When the formaldehyde concentration in the air increases, the telescopic part in the filter element is extended by the drive mechanism. Specifically, the slider on the movable sealing plate slides upward in the slide rail on the fixed sealing plate, exposing the fourth nanometer photocatalytic mesh that is covered by the fixed sealing plate. This increases the contact surface of the filter element for purifying formaldehyde and improves the contact purification effect. However, the width of the exhaust port above the filter element decreases, reducing the exhaust efficiency.

[0017] 2. When the formaldehyde concentration in the air decreases, the telescopic part in the filter element is driven to contract by the drive mechanism. Specifically, the slider on the movable sealing plate slides downward in the slide rail on the fixed sealing plate. The fixed sealing plate blocks the fourth nanometer photocatalytic mesh, reducing the contact surface of the filter element to purify formaldehyde. The width of the exhaust port above the filter element is increased to increase the exhaust efficiency.

[0018] Based on common knowledge in the field, the above-mentioned preferred conditions can be combined arbitrarily to obtain various preferred embodiments of the present invention.

[0019] The positive and progressive effects of this invention are as follows:

[0020] The aforementioned NCCO nanofilter assembly and its usage method, which allows for large-area contact with inhaled air, utilizes a design with a telescopic section in the filter element. This telescopic section, driven by a mechanism, extends and retracts, allowing for free adjustment of the purification contact area size. When formaldehyde concentration increases, the contact area increases, and the exhaust port size decreases accordingly, reducing exhaust efficiency. Conversely, when formaldehyde concentration decreases, the contact area decreases, and the exhaust port size increases accordingly, improving exhaust efficiency. This allows for adjustment and switching of exhaust efficiency and contact effect under different concentration environments. Furthermore, the filter element above the air inlet is recessed upwards, increasing the purification contact area compared to traditional flat shapes. Attached Figure Description

[0021] Figure 1 This is a three-dimensional structural diagram of the present invention in its fully unfolded state.

[0022] Figure 2 This is a three-dimensional structural diagram of the present invention in its overall compacted state.

[0023] Figure 3 This is a schematic diagram of the cross-sectional structure of the slide and slider of the present invention.

[0024] Figure 4 This is a schematic diagram of the bottom of the filter element main board and the distribution of the electric push rod in Embodiment 1 of the present invention.

[0025] Figure 5 This is a schematic diagram of the cross-sectional structure in the overall unfolded state in Embodiment 1 of the present invention.

[0026] Figure 6This is a schematic diagram of the cross-sectional structure in the overall contracted state in Embodiment 1 of the present invention.

[0027] Figure 7 This is a schematic diagram of the bottom of the filter element main board and the distribution of the electric push rod in Embodiment 2 of the present invention.

[0028] Figure 8 This is a schematic diagram of the cross-sectional structure in the overall unfolded state in Embodiment 2 of the present invention.

[0029] Figure 9 This is a schematic diagram of the cross-sectional structure in the overall contracted state in Embodiment 2 of the present invention.

[0030] Figure 10 This is a schematic diagram of the cross-sectional structure in the overall unfolded state in Embodiment 3 of the present invention.

[0031] Figure 11 This is a schematic diagram of the cross-sectional structure in the overall contracted state in Embodiment 3 of the present invention.

[0032] Explanation of reference numerals in the attached figures

[0033] 1. Filter cartridge main board; 101. Housing; 102. First nano-photocatalytic mesh; 103. Second nano-photocatalytic mesh; 104. Connecting strip; 2. Filter cartridge auxiliary parts; 201. Third nano-photocatalytic mesh; 202. Fixed sealing plate; 203. Fourth nano-photocatalytic mesh; 204. Movable sealing plate; 205. Flexible nano-photocatalytic mesh; 3. Electric push rod; 4. Sliding mechanism; 401. Slide rail; 402. Slider; 5. Telescopic connecting rod; 501. Straight rod; 502. Sleeve; 6. Linkage rod; 7. Sliding sleeve; 8. Manual drive component; 801. Screw; 802. Screw hole; 803. Slide rod; 804. Sliding ring; 9. Purifier housing; 901. Air outlet. Detailed Implementation

[0034] The present invention will be further illustrated by way of embodiments below, but the present invention is not limited to the scope of the embodiments described herein.

[0035] Example 1

[0036] like Figure 1-6As shown, an NCCO nanofiber filter assembly capable of contacting a large area of ​​inhaled air includes a filter main board 1, which has several equally spaced air inlets. Each air inlet includes a second nanofiber photocatalytic mesh 103 and at least one connecting strip 104, with the second nanofiber photocatalytic mesh 103 fixedly mounted to the connecting strip 104. The filter main board 1 also includes a housing 101; there are several housings 101, which are alternately distributed with the air inlets, and the connecting strip 104 on the air inlets is fixedly connected to the housing 101. A first nanofiber photocatalytic mesh 102 is filled in the housing 101 at the position opposite to the filter element 2.

[0037] like Figure 4 As shown, it is applied in the purifier housing 9. Air enters from the bottom of the entire NCCO nano filter assembly, blows towards the bottom surface of the filter main board 1, and comes into contact with the first nano photocatalytic mesh 102 and the second nano photocatalytic mesh 103 for initial contact. Then, after passing through the air inlet, it is blown to the top of the filter main board 1, and subsequently makes secondary contact with the filter sub-component 2 to increase the contact area.

[0038] like Figure 2-3 As shown, the NCCO nanofiber filter assembly further includes: filter element sub-components 2, wherein there are several filter element sub-components 2, and the several filter element sub-components 2 are respectively arranged above several air inlets; two telescopic parts are symmetrically arranged on the left and right sides of the filter element sub-components 2, and the upper and lower ends of the two telescopic parts respectively form an exhaust port and an air inlet, and the width of the exhaust port is smaller than the width of the air inlet; the telescopic part includes a fixed sealing plate 202, a third nanofiber photocatalytic mesh 201, a movable sealing plate 204, and a fourth nanofiber photocatalytic mesh 203; the third nanofiber photocatalytic mesh 201 is laid on the plate surface of the fixed sealing plate 202 facing the air inlet, and the fourth nanofiber photocatalytic mesh 203 is laid on the plate surface of the movable sealing plate 204 facing the air inlet. A sliding mechanism 4 is provided between the bottom of the movable sealing plate 204 and the surface of the fixed sealing plate 202. The fourth nano-photocatalytic mesh 203 is in close contact with the fixed sealing plate 202, and the bottom of the fixed sealing plate 202 is fixedly connected to the filter element main board 1. The filter element sub-component 2 also includes a flexible nano-photocatalytic mesh 205 disposed at the exhaust port. The side of the flexible nano-photocatalytic mesh 205 is fixedly connected to the upper end of the fourth nano-photocatalytic mesh 203 of the telescopic part. The sliding mechanism 4 includes a slide rail 401 and a slider 402. The slide rail 401 is opened on the surface of the fixed sealing plate 202 facing away from the third nano-photocatalytic mesh 201. The slider 402 is slidably connected to the slide rail 401, and the slider 402 is fixedly connected to the lower end of the movable sealing plate 204.

[0039] in Figure 2When the filter element 2 is in the unfolded state, the fourth nanometer photocatalytic mesh 203 is least obstructed, has a large purification contact surface, and its exhaust port width is reduced to the minimum. Figure 3 In the filter element component 2, the fourth nanometer photocatalytic mesh 203 is the most obstructed and has the smallest purification contact surface, and the corresponding exhaust port width is increased to the maximum. In specific implementation, the movable sealing plate 204 slides in the slide rail 401 through the slider 402 to realize the switching between the unfolded state and the compacted state, which is suitable for contact purification of formaldehyde of different concentrations.

[0040] After passing through the air inlet, the air is blown between the two telescopic parts. The fixed sealing plate 202 and the movable sealing plate 204 cannot pass through the air. After the air comes into contact with the third nano-photocatalytic mesh 201 and the fourth nano-photocatalytic mesh 203, it is discharged from the exhaust port after passing through the flexible nano-photocatalytic mesh 205.

[0041] The first nano-photocatalytic mesh 102, the second nano-photocatalytic mesh 103, the third nano-photocatalytic mesh 201, the fourth nano-photocatalytic mesh 203, and the flexible nano-photocatalytic mesh 205 are all made of wire mesh, with nano-catalyst particles attached to the wire mesh, which is a flexible wire mesh. During use, external light sources are provided at the bottom of the filter element main board 1 and inside the filter element sub-component 2 to provide illumination.

[0042] like Figure 4-6 As shown, a drive mechanism is connected to the filter element sub-component 2 and drives the telescopic part to extend and retract. The drive mechanism includes several electric push rods 3 fixedly installed on the filter element main board 1. The electric push rods 3 are respectively connected to several filter element sub-components 2, and the output end of the electric push rod 3 is fixedly connected to the lower end of the movable sealing plate 204 of the telescopic part in the filter element sub-component 2. A telescopic connecting rod 5 is provided between the upper sides of the movable sealing plates 204 of the two telescopic parts in the filter element sub-component 2. The telescopic connecting rod 5 includes a straight rod 501 and a sleeve 502. The straight rod 501 is connected to the sleeve 502 with clearance fit. One end of the straight rod 501 is fixedly connected to the upper side of the movable sealing plate 204 of the left telescopic part in the filter element sub-component 2, and one end of the sleeve 502 is fixedly connected to the upper side of the movable sealing plate 204 of the right telescopic part in the filter element sub-component 2.

[0043] In the above embodiments, each filter element 2 has an electric push rod 3 for driving to extend and retract, so that the extension and retraction state adjustment of each filter element 2 is independent of each other, and different filter element 2 can be adjusted to different sizes of contact surfaces, thus forming a variety of NCCO nano filter assemblies with different contact surface sizes.

[0044] When adjusting the contact surface of a single filter element 2, the movable sealing plate 204 is moved by the electric push rod 3. The slider 402 slides in the slide rail 401 to realize the extension and retraction adjustment of the single telescopic part. The telescopic connecting rod 5 drives the movable sealing plate 204 in another telescopic part to move. Specifically, the movable sealing plate 204 is lifted up and slides on the fixed sealing plate 202 to realize the expansion or contraction. The extension or retraction of the telescopic connecting rod 5 does not affect the lateral movement of the movable sealing plate 204 to expand or contract, thus realizing the overall expansion or contraction adjustment.

[0045] Example 2

[0046] like Figure 1-3 as well as Figure 7-9 As shown, an NCCO nanofiber filter assembly capable of contacting a large area of ​​inhaled air includes a filter main board 1, which has several equally spaced air inlets. Each air inlet includes a second nanofiber photocatalytic mesh 103 and at least one connecting strip 104, with the second nanofiber photocatalytic mesh 103 fixedly mounted to the connecting strip 104. The filter main board 1 also includes a housing 101; there are several housings 101, which are alternately distributed with the air inlets, and the connecting strip 104 on the air inlets is fixedly connected to the housing 101. A first nanofiber photocatalytic mesh 102 is filled in the housing 101 at the position opposite to the filter element 2.

[0047] like Figure 7 As shown, it is applied in the purifier housing 9. Air enters from the bottom of the entire NCCO nano filter assembly, blows towards the bottom surface of the filter main board 1, and comes into contact with the first nano photocatalytic mesh 102 and the second nano photocatalytic mesh 103 for initial contact. Then, after passing through the air inlet, it is blown to the top of the filter main board 1 for secondary contact with the subsequent filter sub-components 2 to increase the contact area.

[0048] like Figure 7-9As shown, the NCCO nanofiber filter assembly further includes: filter element sub-components 2, wherein there are several filter element sub-components 2, and the several filter element sub-components 2 are respectively arranged above several air inlets; two telescopic parts are symmetrically arranged on the left and right sides of the filter element sub-components 2, and the upper and lower ends of the two telescopic parts respectively form an exhaust port and an air inlet, and the width of the exhaust port is smaller than the width of the air inlet; the telescopic part includes a fixed sealing plate 202, a third nanofiber photocatalytic mesh 201, a movable sealing plate 204, and a fourth nanofiber photocatalytic mesh 203; the third nanofiber photocatalytic mesh 201 is laid on the plate surface of the fixed sealing plate 202 facing the air inlet, and the fourth nanofiber photocatalytic mesh 203 is laid on the plate surface of the movable sealing plate 204 facing the air inlet. A sliding mechanism 4 is provided between the bottom of the movable sealing plate 204 and the surface of the fixed sealing plate 202. The fourth nano-photocatalytic mesh 203 is in close contact with the fixed sealing plate 202, and the bottom of the fixed sealing plate 202 is fixedly connected to the filter element main board 1. The filter element sub-component 2 also includes a flexible nano-photocatalytic mesh 205 disposed at the exhaust port. The side of the flexible nano-photocatalytic mesh 205 is fixedly connected to the upper end of the fourth nano-photocatalytic mesh 203 of the telescopic part. The sliding mechanism 4 includes a slide rail 401 and a slider 402. The slide rail 401 is opened on the surface of the fixed sealing plate 202 facing away from the third nano-photocatalytic mesh 201. The slider 402 is slidably connected to the slide rail 401, and the slider 402 is fixedly connected to the lower end of the movable sealing plate 204.

[0049] in Figure 7 When the filter element 2 is in the unfolded state, the fourth nanometer photocatalytic mesh 203 is least obstructed, has a large purification contact surface, and its exhaust port width is reduced to the minimum. Figure 8 In the filter element component 2, the fourth nanometer photocatalytic mesh 203 is the most obstructed and has the smallest purification contact surface, and the corresponding exhaust port width is increased to the maximum. In specific implementation, the movable sealing plate 204 slides in the slide rail 401 through the slider 402 to realize the switching between the unfolded state and the compacted state, which is suitable for contact purification of formaldehyde of different concentrations.

[0050] After passing through the air inlet, the air is blown between the two telescopic parts. The fixed sealing plate 202 and the movable sealing plate 204 cannot pass through the air. After the air comes into contact with the third nano-photocatalytic mesh 201 and the fourth nano-photocatalytic mesh 203, it is discharged from the exhaust port after passing through the flexible nano-photocatalytic mesh 205.

[0051] The first nano-photocatalytic mesh 102, the second nano-photocatalytic mesh 103, the third nano-photocatalytic mesh 201, the fourth nano-photocatalytic mesh 203, and the flexible nano-photocatalytic mesh 205 are all made of wire mesh, with nano-catalyst particles attached to the wire mesh, which is a flexible wire mesh. During use, external light sources are provided at the bottom of the filter element main board 1 and inside the filter element sub-component 2 to provide illumination.

[0052] like Figure 7-9 As shown, a drive mechanism is connected to the filter element sub-component 2 and drives the telescopic part to extend and retract. The drive mechanism includes an electric push rod 3 fixedly mounted on the filter element main board 1 and a connecting rod 6. The output end of the electric push rod 3 is fixedly connected to the lower end of the movable sealing plate 204 of any one of the telescopic parts in the filter element sub-component 2; the connecting rod 6 is fixedly connected to the upper side of any one of the movable sealing plates 204, and each of the other movable sealing plates 204 is provided with a sliding sleeve 7, which is slidably sleeved with the connecting rod 6.

[0053] In the above embodiments, the opening or closing state of all filter element components 2 can be switched by a single electric push rod 3, reducing the use of electric push rod 3 or other forms of power sources.

[0054] During adjustment, the electric push rod 3 extends and retracts, causing the telescopic part in the individual filter element 2 to extend and retract, driving other movable sealing plates 204 to move. During the movement, the movable sealing plates 204 of other telescopic parts can be moved together by the linkage rod 6. Specifically, the other telescopic parts are driven by adjusting the height of the linkage push rod. The movable sealing plates 204 in the other telescopic parts slide with the linkage rod 6 through the sliding sleeve 7, changing their lateral position, thereby enabling the movable sealing plates 204 to slide on the fixed sealing plate 202 through the sliding mechanism 4.

[0055] Example 3

[0056] like Figure 1-3 as well as Figure 10-11 As shown, an NCCO nanofiber filter assembly capable of contacting a large area of ​​inhaled air includes a filter main board 1, which has several equally spaced air inlets. Each air inlet includes a second nanofiber photocatalytic mesh 103 and at least one connecting strip 104, with the second nanofiber photocatalytic mesh 103 fixedly mounted to the connecting strip 104. The filter main board 1 also includes a housing 101; there are several housings 101, which are alternately distributed with the air inlets, and the connecting strip 104 on the air inlets is fixedly connected to the housing 101. A first nanofiber photocatalytic mesh 102 is filled in the housing 101 at the position opposite to the filter element 2.

[0057] It is used in the purifier housing 9. Air enters from the bottom of the entire NCCO nano filter assembly, blows towards the bottom surface of the filter main board 1, and comes into contact with the first nano photocatalytic mesh 102 and the second nano photocatalytic mesh 103 for initial contact. Then, after passing through the air inlet, it is blown to the top of the filter main board 1 for secondary contact with the subsequent filter sub-components 2 to increase the contact area.

[0058] like Figure 10-11 As shown, the NCCO nanofiber filter assembly further includes: filter element sub-components 2, wherein there are several filter element sub-components 2, and the several filter element sub-components 2 are respectively arranged above several air inlets; two telescopic parts are symmetrically arranged on the left and right sides of the filter element sub-components 2, and the upper and lower ends of the two telescopic parts respectively form an exhaust port and an air inlet, and the width of the exhaust port is smaller than the width of the air inlet; the telescopic part includes a fixed sealing plate 202, a third nanofiber photocatalytic mesh 201, a movable sealing plate 204, and a fourth nanofiber photocatalytic mesh 203; the third nanofiber photocatalytic mesh 201 is laid on the plate surface of the fixed sealing plate 202 facing the air inlet, and the fourth nanofiber photocatalytic mesh 203 is laid on the plate surface of the movable sealing plate 204 facing the air inlet. A sliding mechanism 4 is provided between the bottom of the movable sealing plate 204 and the surface of the fixed sealing plate 202. The fourth nano-photocatalytic mesh 203 is in close contact with the fixed sealing plate 202, and the bottom of the fixed sealing plate 202 is fixedly connected to the filter element main board 1. The filter element sub-component 2 also includes a flexible nano-photocatalytic mesh 205 disposed at the exhaust port. The side of the flexible nano-photocatalytic mesh 205 is fixedly connected to the upper end of the fourth nano-photocatalytic mesh 203 of the telescopic part. The sliding mechanism 4 includes a slide rail 401 and a slider 402. The slide rail 401 is opened on the surface of the fixed sealing plate 202 facing away from the third nano-photocatalytic mesh 201. The slider 402 is slidably connected to the slide rail 401, and the slider 402 is fixedly connected to the lower end of the movable sealing plate 204.

[0059] in Figure 10 When the filter element 2 is in the unfolded state, the fourth nanometer photocatalytic mesh 203 is least obstructed, has a large purification contact surface, and its exhaust port width is reduced to the minimum. Figure 11 In the filter element component 2, the fourth nanometer photocatalytic mesh 203 is the most obstructed and has the smallest purification contact surface, and the corresponding exhaust port width is increased to the maximum. In specific implementation, the movable sealing plate 204 slides in the slide rail 401 through the slider 402 to realize the switching between the unfolded state and the compacted state, which is suitable for contact purification of formaldehyde of different concentrations.

[0060] After passing through the air inlet, the air is blown between the two telescopic parts. The fixed sealing plate 202 and the movable sealing plate 204 cannot pass through the air. After the air comes into contact with the third nano-photocatalytic mesh 201 and the fourth nano-photocatalytic mesh 203, it is discharged from the exhaust port after passing through the flexible nano-photocatalytic mesh 205.

[0061] The first nano-photocatalytic mesh 102, the second nano-photocatalytic mesh 103, the third nano-photocatalytic mesh 201, the fourth nano-photocatalytic mesh 203, and the flexible nano-photocatalytic mesh 205 are all made of wire mesh, with nano-catalyst particles attached to the wire mesh, which is a flexible wire mesh. During use, external light sources are provided at the bottom of the filter element main board 1 and inside the filter element sub-component 2 to provide illumination.

[0062] like Figure 10-11 As shown, a drive mechanism is connected to the filter element assembly 2, driving the telescopic part to extend and retract. The NCCO nano filter element assembly is installed in the purifier housing 9; the drive mechanism is a manual drive component 8, which includes a screw 801, a slide rod 803, a sliding ring 804, and a screw hole 802 formed on the purifier housing 9; the screw 801 is threadedly connected to the screw hole 802, one end of the screw 801 is rotatably connected to one end of the slide rod 803, and the sliding ring 804 is slidably sleeved on the slide rod 803, and the sliding ring 804 is fixedly connected to the upper end of the movable sealing plate 204.

[0063] The air vent 901 is located on the top of the purifier housing 9, for discharging purified air.

[0064] In the above embodiments, the drive can be manually operated; specifically, by rotating the screw 801, the screw 801 is turned around the threaded hole, thereby adjusting the up and down position of the slide rod 803, providing up and down drive for all movable sealing plates 204. During the sliding process of the movable sealing plate 204 on the fixed sealing plate 202 through the sliding mechanism 4, the sliding ring 804 slides on the slide rod 803 to realize the change of lateral position.

[0065] A method of using an NCCO nanofiber filter assembly, the method comprising the following steps:

[0066] 1. When the formaldehyde concentration in the air increases, the telescopic part in the filter element 2 is extended by the drive mechanism. Specifically, the slider 402 on the movable sealing plate 204 slides upward in the slide rail 401 on the fixed sealing plate 202, exposing the fourth nanometer photocatalytic mesh 203 that is covered by the fixed sealing plate 202. This increases the contact surface of the filter element 2 to purify formaldehyde and improves the contact purification effect. However, the width of the exhaust port above the filter element 2 is reduced, thus reducing the exhaust efficiency.

[0067] 2. When the formaldehyde concentration in the air decreases, the telescopic part in the filter element 2 is driven to contract by the drive mechanism. Specifically, the slider 402 on the movable sealing plate 204 slides downward in the slide rail 401 on the fixed sealing plate 202. The fixed sealing plate 202 blocks the fourth nanometer photocatalytic mesh 203, reducing the contact surface of the filter element 2 for purifying formaldehyde. The width of the exhaust port above the filter element 2 is increased to increase the exhaust efficiency.

[0068] This invention is not limited to the embodiments described above. Any changes in shape or structure shall fall within the protection scope of this invention. The protection scope of this invention is defined by the appended claims. Those skilled in the art may make various changes or modifications to these embodiments without departing from the principles and essence of this invention, but all such changes and modifications shall fall within the protection scope of this invention.

Claims

1. An NCCO nanofilter assembly capable of contacting a large area of ​​inhaled air, comprising a filter mainboard (1), characterized in that: The filter element main board (1) has several air inlets that are evenly spaced; Also includes: The filter element sub-component (2) is a plurality of filter element sub-components (2), and the plurality of filter element sub-components (2) are respectively arranged above the plurality of air inlets; the filter element sub-components (2) are symmetrically arranged with two telescopic parts on the left and right sides, and the upper and lower ends of the two telescopic parts respectively form an exhaust port and an air inlet, and the width of the exhaust port is smaller than the width of the air inlet; The drive mechanism is connected to the filter element assembly (2) and drives the telescopic part to extend and retract. The telescopic part includes a fixed sealing plate (202), a third nano-photocatalytic mesh (201), a movable sealing plate (204), and a fourth nano-photocatalytic mesh (203); the third nano-photocatalytic mesh (201) is laid on the plate surface of the fixed sealing plate (202) facing the air inlet, the fourth nano-photocatalytic mesh (203) is laid on the plate surface of the movable sealing plate (204) facing the air inlet, a sliding mechanism (4) is provided between the bottom of the movable sealing plate (204) and the plate surface of the fixed sealing plate (202), the fourth nano-photocatalytic mesh (203) is in close contact with the fixed sealing plate (202), and the bottom of the fixed sealing plate (202) is fixed to the filter element main board (1); The filter element component (2) also includes a flexible nano-photocatalytic mesh (205) disposed at the exhaust port, the side of which is fixedly connected to the upper end of the fourth nano-photocatalytic mesh (203) of the telescopic part.

2. The NCCO nanofilter assembly capable of large-area contact with inhaled air as described in claim 1, characterized in that: The air inlet includes a second nano-photocatalytic mesh (103) and at least one connecting strip (104), wherein the second nano-photocatalytic mesh (103) is fixedly installed on the connecting strip (104).

3. The NCCO nanofilter assembly capable of large-area contact with inhaled air as described in claim 2, characterized in that: The filter element main board (1) also includes a housing (101); there are several housings (101), and several housings (101) and several air inlets are alternately distributed, and the connecting strip (104) on the air inlet is fixedly connected to the housing (101), and a first nano-photocatalytic mesh (102) is filled in the position of the housing (101) facing away from the filter element sub-component (2).

4. The NCCO nanofilter assembly capable of large-area contact with inhaled air as described in any one of claims 1-3, characterized in that: The sliding mechanism (4) includes a slide rail (401) and a slider (402); the slide rail (401) is opened on the plate surface of the fixed sealing plate (202) facing away from the third nano-photocatalytic network (201), the slider (402) is slidably connected to the slide rail (401), and the slider (402) is fixedly connected to the lower end of the movable sealing plate (204).

5. The NCCO nanofilter assembly capable of large-area contact with inhaled air as described in any one of claims 1-3, characterized in that: The driving mechanism includes several electric push rods (3) fixedly installed on the filter element main board (1). The several electric push rods (3) are respectively connected to several filter element sub-parts (2), and the output end of the electric push rod (3) is fixedly connected to the lower end of the movable sealing plate (204) of the telescopic part in the filter element sub-part (2). A telescopic connecting rod (5) is provided between the upper sides of the movable sealing plates (204) of the two telescopic parts in the filter element sub-part (2). The telescopic connecting rod (5) includes a straight rod (501) and a sleeve (502). The straight rod (501) is connected to the sleeve (502) with clearance fit. One end of the straight rod (501) is fixedly connected to the upper side of the movable sealing plate (204) of the left telescopic part in the filter element sub-part (2), and one end of the sleeve (502) is fixedly connected to the upper side of the movable sealing plate (204) of the right telescopic part in the filter element sub-part (2).

6. The NCCO nanofilter assembly capable of large-area contact with inhaled air as described in any one of claims 1-3, characterized in that: The drive mechanism includes an electric push rod (3) fixedly mounted on the filter element main board (1) and a linkage rod (6). The output end of the electric push rod (3) is fixedly connected to the lower end of the movable sealing plate (204) of the telescopic part in any of the filter element sub-components (2). The linkage rod (6) is fixedly connected to the upper side of any of the movable sealing plates (204). The upper side of the other movable sealing plates (204) is provided with a sliding sleeve (7). The sliding sleeve (7) is slidably sleeved with the linkage rod (6).

7. The NCCO nanofilter assembly capable of large-area contact with inhaled air as described in any one of claims 1-3, characterized in that: The NCCO nano filter assembly is installed in the purifier housing (9); the driving mechanism is a manual drive component (8), which includes a screw (801), a slide rod (803), a sliding ring (804), and a screw hole (802) opened on the purifier housing (9); the screw (801) is threadedly connected to the screw hole (802), one end of the screw (801) is rotatably connected to one end of the slide rod (803), the sliding ring (804) is slidably sleeved on the slide rod (803), and the sliding ring (804) is fixedly connected to the upper end of the movable sealing plate (204).

8. The method of using the NCCO nanofilter assembly capable of large-area contact with inhaled air as described in claim 4, characterized in that: The method of use includes the following steps:

1. When the formaldehyde concentration in the air increases, the telescopic part in the filter element sub-component (2) is extended by the drive mechanism. Specifically, the slider (402) on the movable sealing plate (204) slides upward in the slide rail (401) on the fixed sealing plate (202), exposing the fourth nanometer photocatalytic mesh (203) covered by the fixed sealing plate (202), increasing the contact surface of the filter element sub-component (2) to purify formaldehyde and improving the contact purification effect. However, the width of the exhaust port above the filter element sub-component (2) is reduced, reducing the exhaust efficiency.

2. When the formaldehyde concentration in the air decreases, the telescopic part in the filter element sub-component (2) is driven to contract by the drive mechanism. Specifically, the slider (402) on the movable sealing plate (204) slides downward in the slide (401) on the fixed sealing plate (202). The fourth nanometer photocatalytic mesh (203) is blocked by the fixed sealing plate (202), reducing the contact surface of the filter element sub-component (2) for purifying formaldehyde. The width of the exhaust port above the filter element sub-component (2) is increased, thereby increasing the exhaust efficiency.

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