Filter assembly and air treatment equipment

Abstract

The invention relates to the technical field of air purification, and discloses a filter assembly and air treatment equipment, and the filter assembly comprises a filter screen which is rotatably arranged; the lamp holder is arranged on one side of the filter screen, a plurality of ultraviolet lamps are arranged on the lamp holder, and the irradiation range of the ultraviolet lamps in the height direction covers the filter screen; the baffle assemblies are arranged on the two sides of the ultraviolet lamps. According to the air purification equipment, the baffle assemblies are arranged on the two sides of the multiple ultraviolet lamps, the baffle assemblies can prevent ultraviolet light from leaking and prevent ultraviolet light reflected by the filter screen from irradiating the outer side of the air purification equipment, so that harm to a human body is avoided, the ultraviolet light is gathered on the inner sides of the baffle assemblies, and the disinfection efficiency can be improved.

Description

Technical Field

[0001] This invention relates to the field of air purification technology, specifically to filter components and air handling equipment. Background Technology

[0002] With increasing concern about air quality, air purifiers have become common air handling equipment in homes and public places. The filter, as the core component of an air purifier, easily accumulates dust, bacteria, and viruses after prolonged use, affecting purification efficiency and potentially causing secondary pollution. Related technologies use ultraviolet (UV) lamps to disinfect the filter surface to achieve sterilization. However, there is a risk of UV light leakage during the irradiation process, especially when the filter reflects UV light. UV light may leak into the environment through the air purifier's air intake, potentially harming human skin and eyes. Summary of the Invention

[0003] In view of this, the present invention provides a filter component and an air treatment device to solve the problem of ultraviolet light leakage during the irradiation process of ultraviolet lamps in the related art.

[0004] In a first aspect, the present invention provides a filtering component, comprising: The filter screen is rotatably mounted. A lamp holder is provided on one side of the filter, and the lamp holder is provided with multiple ultraviolet lamps, the irradiation range of the multiple ultraviolet lamps covering the filter in the height direction; A baffle assembly is disposed on both sides of the plurality of ultraviolet lamps.

[0005] Beneficial effects: The lamp holder is located on one side of the filter, and multiple ultraviolet lamps are mounted on the holder. These lamps cover the filter in the vertical direction, ensuring complete coverage of the filter. Combined with the filter's rotation around its central axis, the ultraviolet light scans the entire filter surface, achieving dynamic and comprehensive disinfection and avoiding blind spots caused by static irradiation. Baffle assemblies are installed on both sides of the multiple ultraviolet lamps to prevent ultraviolet light leakage and block reflected ultraviolet light from reaching the outside of the air purifier, thus avoiding harm to humans. Furthermore, the ultraviolet light is concentrated on the inner side of the baffle assembly, improving disinfection efficiency.

[0006] In one optional embodiment, the baffle assembly includes a first baffle disposed on both sides of the plurality of ultraviolet lamps and perpendicular to the lamp holder, the height of the first baffle being not less than the effective filtration height of the filter, the first baffle being able to reflect light, and the first baffle having a gap with the surface of the filter.

[0007] Beneficial effects: The first baffle is located on both sides of multiple UV lamps and perpendicular to the lamp holders. The height of the first baffle is no less than the effective filtration height of the filter. Therefore, the first baffle prevents UV light leakage and blocks UV light reflected from the filter from reaching the outside of the air purifier, thus avoiding harm to the human body. The first baffle reflects light; therefore, after UV light reflected from the filter hits the first baffle, it can reflect the UV light back onto the filter, ensuring the disinfection effect. The gap between the first baffle and the filter surface ensures that the first baffle does not interfere with the rotation of the filter, ensuring smooth rotation of the filter.

[0008] In one optional embodiment, the baffle assembly further includes a second baffle disposed on both sides of the lamp holder, with the first baffle located between the two second baffles. Therefore, the height of the second baffle is not less than the effective filtration height of the filter screen. The angle between the second baffle and the extended surfaces located on both sides of the lamp holder is an acute angle. The extended surfaces are coplanar with the lamp holder. The second baffle can reflect light, and there is a gap between the second baffle and the surface of the filter screen.

[0009] Beneficial Effects: The second baffle is located on both sides of the lamp holder, with the first baffle positioned between the two second baffles. The angle between the second baffle and the extended surfaces on both sides of the lamp holder is acute. The second baffle further prevents ultraviolet light leakage, blocking ultraviolet light reflected from the filter from reaching the outside of the air purifier, thus avoiding harm to the human body. The second baffle reflects light, so the ultraviolet light emitted by the ultraviolet lamp passes through the gap between the first baffle and the filter, shines on the filter, and after being reflected by the filter, shines on the second baffle, which then reflects the ultraviolet light back onto the filter, ensuring the disinfection effect. The gap between the surface of the second baffle and the filter ensures that the second baffle does not interfere with the rotation of the filter, ensuring smooth rotation of the filter.

[0010] In one alternative embodiment, the angle between the second baffle and the extended surface is 23°.

[0011] Beneficial effects: The angle between the second baffle and the plane of the extension surface is 23°. The ultraviolet light emitted by the ultraviolet lamp passes through the gap between the first baffle and the filter and shines on the filter. After being reflected by the filter, it shines on the second baffle. The second baffle can reflect the ultraviolet light back onto the filter, thus ensuring the disinfection effect.

[0012] In one alternative embodiment, the first baffle and the second baffle include a substrate and a reflective layer disposed on the surface of the substrate.

[0013] Beneficial effect: By setting a reflective layer on the base surface, the reflective effect of the first and second baffles can be ensured.

[0014] In one alternative embodiment, the reflective layer is provided with micron-sized pits.

[0015] Beneficial effects: The reflective layer has micron-level pits, which can achieve controlled diffuse reflection of reflected light, resulting in a more uniform irradiance distribution on the filter surface after secondary reflection by the first and second baffles.

[0016] In one alternative embodiment, the reflective layer is an aluminum coating.

[0017] Beneficial effects: The reflective layer is made of aluminum coating, which can improve reflectivity, with an ultraviolet light reflectivity of ≥88% at a wavelength of 275nm.

[0018] In one alternative embodiment, the baffle assembly is provided with a first connecting portion, and the lamp holder is provided with a second connecting portion, wherein the first connecting portion is connected to the second connecting portion.

[0019] Beneficial effects: By setting a first connecting part in the baffle assembly and a second connecting part in the lamp holder, the first connecting part and the second connecting part are detachably connected. The cooperation between the first connecting part and the second connecting part can position the installation position of the baffle assembly, so that the baffle assembly is symmetrically distributed on both sides of multiple ultraviolet lamps, ensuring the consistency of the light path.

[0020] In one optional embodiment, the first connecting part is one of a buckle and a positioning slot, and the second connecting part is the other of a buckle and a positioning slot, wherein the buckle engages with the positioning slot.

[0021] Beneficial effects: The first connecting part is one of the buckle and the positioning slot, and the second connecting part is the other of the buckle and the positioning slot. The buckle and the positioning slot engage, which makes it easy to install the baffle assembly onto the lamp holder.

[0022] In one alternative embodiment, the lamp holder is made of a thermally conductive insulating material.

[0023] Beneficial effects: The lamp holder is made of thermally conductive and insulating material, which can effectively dissipate the heat generated by the ultraviolet lamp.

[0024] In one optional embodiment, the output intensity of the ultraviolet lamp is P, where P ≥ 1 mW / cm². 2 ; And / or, the wavelength of the ultraviolet light emitted by the ultraviolet lamp is 260-280nm; And / or, the rotation speed of the filter is 0.3 r / min.

[0025] Beneficial effects: By ensuring the output intensity of the ultraviolet lamp is greater than or equal to 1mW / cm² 2With a wavelength of 260-280nm, thorough sterilization is ensured, allowing multiple UV lamps to completely sterilize the filter and prevent photoreactivation. By reducing the filter's rotation speed to 0.3r / min, the continuous irradiation time for each fold is extended, ensuring a cumulative UV dose ≥10mJ / cm², achieving efficient inactivation and effectively inhibiting microbial photoreactivation, thus achieving comprehensive disinfection of the filter.

[0026] Secondly, the present invention also provides an air treatment device, including the aforementioned filter assembly.

[0027] Beneficial effects: This air handling unit features a lamp holder located on one side of the filter, housing multiple ultraviolet (UV) lamps. These lamps cover the filter in the vertical direction, ensuring complete UV light coverage. Combined with the filter's rotation around its central axis, the UV light scans the entire filter surface, achieving dynamic and comprehensive disinfection and avoiding static irradiation blind spots. Baffle assemblies on both sides of the UV lamps prevent UV light leakage, blocking reflected UV light from reaching the outside of the air purifier and thus avoiding harm to humans. Furthermore, the UV light is concentrated on the inner side of the baffle assemblies, improving disinfection efficiency.

[0028] In one alternative embodiment, the air handling equipment further includes a housing having an axial mounting groove located on the outside of the filter, and the lamp holder located within the axial mounting groove.

[0029] Beneficial effects: By setting an axial mounting groove in the housing and placing the lamp holder in the axial mounting groove, it can be ensured that the lamp holder and the filter are installed coaxially, reducing eccentricity. Attached Figure Description

[0030] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0031] Figure 1 This is a schematic diagram of an air purification device according to an embodiment of the present invention; Figure 2 for Figure 1 A schematic diagram showing the lamp holder and baffle assembly assembled together; Figure 3 This is a top view of a filtering component according to an embodiment of the present invention; Figure 4 for Figure 3 Enlarged view of point A in the middle.

[0032] Explanation of reference numerals in the attached figures: 1. Filter screen; 2. Lamp holder; 3. Ultraviolet lamp; 301. Ultraviolet light; 4. First baffle; 5. Second baffle; 6. Outer shell; 7. Extension surface. Detailed Implementation

[0033] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0034] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0035] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0036] Furthermore, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0037] With increasing concern about air quality, air purifiers have become common air handling equipment in homes and public places. The filter, as the core component of an air purifier, easily accumulates dust, bacteria, and viruses after prolonged use, affecting purification efficiency and potentially causing secondary pollution. Related technologies use ultraviolet (UV) lamps to disinfect the filter surface to achieve sterilization. However, there is a risk of UV light leakage during the irradiation process, especially when the filter reflects UV light. UV light may leak into the environment through the air purifier's air intake, potentially harming human skin and eyes.

[0038] In addition, the ultraviolet irradiation devices in related technologies still have shortcomings in terms of the uniformity of irradiation on the filter surface and the utilization rate of ultraviolet light, which affects the disinfection effect on the filter surface.

[0039] The following is combined Figures 1 to 4 The following describes embodiments of the present invention.

[0040] According to an embodiment of the present invention, a filtering assembly is provided, including a filter screen 1, a lamp holder 2, and a baffle assembly.

[0041] The filter 1 is cylindrical and can be rotated; the lamp holder 2 is located on one side of the filter 1, and multiple ultraviolet lamps 3 are provided on the lamp holder 2, with the irradiation range of the multiple ultraviolet lamps 3 covering the filter 1 in the height direction; the baffle assembly is located on both sides of the multiple ultraviolet lamps 3.

[0042] In this embodiment, the lamp holder 2 is located on one side of the filter 1, and multiple ultraviolet lamps 3 are mounted on the lamp holder 2. The illumination range of the multiple ultraviolet lamps 3 in the vertical direction covers the filter 1. Therefore, in the vertical direction, the ultraviolet light 301 emitted by the ultraviolet lamps 3 can completely cover the filter 1. With the filter 1 rotating around its central axis, the ultraviolet light 301 can scan the entire surface of the filter 1, achieving dynamic and comprehensive disinfection and avoiding static irradiation blind spots. By setting baffle assemblies on both sides of the multiple ultraviolet lamps 3, the baffle assemblies can prevent the ultraviolet light 301 from leaking out and block the ultraviolet light 301 reflected from the filter 1 from irradiating the outside of the air purification device, thereby avoiding harm to the human body. Furthermore, the ultraviolet light 301 is concentrated on the inner side of the baffle assembly, which can improve the disinfection efficiency.

[0043] In a preferred embodiment, the filter 1 is cylindrical.

[0044] In one specific embodiment, the height of the lamp holder 2 is consistent with the effective filtration height of the filter 1. The filter 1 is designed for air passage. If air can pass through the entire height direction of the filter 1, the effective filtration height of the filter 1 is equal to the height of the filter 1. If air can only pass through a portion of the filter 1 in the height direction, the effective filtration height of the filter 1 is equal to the height of that portion.

[0045] In one specific embodiment, the effective filtration height of the filter 1 is 370 mm, the height of the lamp holder 2 is 370 mm, and the irradiation range of the multiple ultraviolet lamps 3 in the height direction is 370 mm. Therefore, the irradiation range of the multiple ultraviolet lamps 3 in the height direction just covers the filter 1, which can thoroughly sterilize without irradiating parts outside the filter 1.

[0046] In one specific embodiment, eight ultraviolet lamps 3 are arranged at equal intervals along the height direction on the lamp holder 2. The emission angle of each ultraviolet lamp 3 is 120°. The irradiation range of these eight ultraviolet lamps 3 in the height direction is 370 mm, which can just cover the filter 1 and will not irradiate the parts outside the filter 1.

[0047] Specifically, in this embodiment, a light strip is provided, and eight ultraviolet lamps 3 are arranged along the height direction on the light strip, with the eight ultraviolet lamps 3 distributed in a row.

[0048] Specifically, the peak wavelength of UV lamp 3 is 275nm.

[0049] In one specific embodiment, eight ultraviolet lamps 3 are evenly spaced on the lamp strip, and the lamp strip is mounted on the lamp holder 2.

[0050] Specifically, the filter 1 is driven by a motor to rotate at a constant speed of 0.3 r / min around its central axis. During operation, the ultraviolet lamp 3 continuously emits ultraviolet light 301. Due to the microporous structure and fiber material on the surface of the filter 1, some of the ultraviolet light 301 will be reflected. To prevent these reflected lights from escaping the device or irradiating non-target areas, baffle assemblies are set on both sides of the multiple ultraviolet lamps 3 to prevent ultraviolet light 301 from leaking out and to block the ultraviolet light 301 reflected from the filter 1 from irradiating the outside of the air purification device.

[0051] In one embodiment, the baffle assembly includes a first baffle 4, which is disposed on both sides of the plurality of ultraviolet lamps 3 and perpendicular to the lamp holder 2. The height of the first baffle 4 is not less than the effective filtration height of the filter 1. The first baffle 4 can reflect light and has a gap with the surface of the filter 1.

[0052] In this embodiment, the first baffle 4 is disposed on both sides of the plurality of ultraviolet lamps 3 and perpendicular to the lamp holder 2. The height of the first baffle 4 is not less than the effective filtration height of the filter 1. Therefore, the first baffle 4 can prevent ultraviolet light 301 from leaking out and block the ultraviolet light 301 reflected from the filter 1 from irradiating the outside of the air purification device, thereby avoiding harm to the human body. The first baffle 4 can reflect light, so after the ultraviolet light 301 reflected from the filter 1 irradiates the first baffle 4, the first baffle 4 can reflect the ultraviolet light 301 back onto the filter 1, thereby ensuring the disinfection effect. The first baffle 4 has a gap with the surface of the filter 1, which can ensure that the first baffle 4 will not interfere with the rotation of the filter 1 and ensure that the filter 1 can rotate smoothly.

[0053] Specifically in one embodiment, such as Figures 2 to 4 As shown, there are two first baffles 4, located on both sides of the lamp holder 2, and multiple ultraviolet lamps 3 are located between the two first baffles 4.

[0054] In one specific embodiment, the height of the first baffle 4 is consistent with the effective filtration height of the filter screen 1.

[0055] In one specific embodiment, the height of the first baffle 4 is 370 mm.

[0056] In one embodiment, the baffle assembly further includes a second baffle 5, which is disposed on both sides of the lamp holder 2. The first baffle 4 is located between the two second baffles 5, so the height of the second baffle 5 is not less than the effective filtration height of the filter screen 1. The angle between the second baffle 5 and the extension surface 7 located on both sides of the lamp holder 2 is an acute angle. The extension surface 7 is coplanar with the lamp holder 2. The second baffle 5 can reflect light, and there is a gap between the second baffle 5 and the surface of the filter screen 1.

[0057] In this embodiment, the second baffle 5 is located on both sides of the lamp holder 2, and the first baffle 4 is located between the two second baffles 5. The angle between the second baffle 5 and the extended surfaces 7 located on both sides of the lamp holder 2 is an acute angle. The second baffle 5 can further prevent the leakage of ultraviolet light 301 and block the ultraviolet light 301 reflected from the filter 1 from irradiating the outside of the air purification device, thereby avoiding harm to the human body. The second baffle 5 can reflect light, so the ultraviolet light 301 emitted by the ultraviolet lamp 3 passes through the gap between the first baffle 4 and the filter 1 and irradiates the filter 1. After being reflected by the filter 1 and irradiating the second baffle 5, the second baffle 5 can reflect the ultraviolet light 301 back to the filter 1, thereby ensuring the disinfection effect. The gap between the second baffle 5 and the surface of the filter 1 can ensure that the second baffle 5 will not interfere with the rotation of the filter 1, ensuring that the filter 1 can rotate smoothly.

[0058] In one specific embodiment, the end of the first baffle 4 away from the filter screen 1 and the end of the second baffle 5 away from the filter screen 1 are connected as one unit, thereby facilitating the installation of the baffle assembly.

[0059] In one specific embodiment, the minimum distance between the first baffle 4 and the filter 1 is 3 mm, and the minimum distance between the second baffle 5 and the filter 1 is 3 mm. While ensuring that the rotation of the filter 1 is not interfered with, a continuous shielding barrier is formed to completely block the path of ultraviolet light 301 leaking outward from between the lamp holder 2 and the filter 1.

[0060] In one embodiment, the angle between the second baffle 5 and the extension surface 7 is 23°.

[0061] In this embodiment, the angle between the second baffle 5 and the extension surface 7 is 23°. The ultraviolet light 301 emitted by the ultraviolet lamp 3 passes through the gap between the first baffle 4 and the filter screen 1 and shines on the filter screen 1. After being reflected by the filter screen 1 and shining on the second baffle 5, the second baffle 5 can reflect the ultraviolet light 301 back onto the filter screen 1, thereby ensuring the disinfection effect.

[0062] Specifically, the ultraviolet lamp 3 emits light at an angle of 120°. By performing reverse modeling and optimization on the path of the light rays at the edge of the 120° emission angle after reflection by the filter 1, it is found that when the angle between the second baffle 5 and the extension surface 7 is 23°, it can be ensured that the reflected light at the maximum angle can still return to the surface of the filter 1 after the second baffle 5 is reflected twice, rather than hitting the gap in the housing.

[0063] Table 1

[0064] According to Table 1, by setting the first baffle and the second baffle, the ultraviolet leakage can be reduced to 0, and all ultraviolet rays can be reflected onto the filter 1, thereby ensuring the disinfection effect.

[0065] In one embodiment, the first baffle 4 and the second baffle 5 include a substrate and a reflective layer disposed on the surface of the substrate.

[0066] In this embodiment, by providing a reflective layer on the base surface, the reflective effect of the first baffle 4 and the second baffle 5 can be ensured.

[0067] In one specific embodiment, the substrate is made of iron alloy, and the surface is sequentially subjected to electrochemical polishing and vacuum evaporation processes to form a reflective layer with a thickness of 100 nm.

[0068] In one embodiment, the reflective layer has micron-sized pits.

[0069] In this embodiment, the reflective layer is provided with micron-sized pits, which can achieve controlled diffuse reflection of the reflected light, so that after secondary reflection by the first baffle 4 and the second baffle 5, a more uniform irradiance distribution is formed on the surface of the filter 1.

[0070] In one specific embodiment, the average diameter of the micron-sized pit is 12 micrometers and the depth is 5 micrometers.

[0071] In one embodiment, the reflective layer is an aluminum coating.

[0072] In this embodiment, the reflective layer is an aluminum coating, which can improve reflectivity, with an ultraviolet light reflectivity of ≥88% at a wavelength of 275nm.

[0073] In one specific embodiment, the substrate is made of iron alloy substrate, and the surface is sequentially electrochemically polished and vacuum evaporation to form a 100nm thick high-purity aluminum coating. The ultraviolet light reflectance at a wavelength of 275nm is ≥88%. Randomly distributed micron-level pit textures are processed on the aluminum coating surface by micro-blasting and chemical etching processes.

[0074] In one embodiment, the baffle assembly is provided with a first connecting part, and the lamp holder 2 is provided with a second connecting part, and the first connecting part is connected to the second connecting part.

[0075] In this embodiment, by providing a first connecting part in the baffle assembly and a second connecting part in the lamp holder 2, the first connecting part and the second connecting part are detachably connected. The cooperation between the first connecting part and the second connecting part can position the installation position of the baffle assembly, so that the baffle assembly is symmetrically distributed on both sides of multiple ultraviolet lamps 3, ensuring the consistency of the light path.

[0076] Specifically, by setting a first connecting part in the baffle assembly and a second connecting part in the lamp holder 2, the central axis of the baffle assembly is strictly aligned with the multiple ultraviolet lamps 3, with the error controlled within ±0.5mm.

[0077] In one embodiment, the first connecting part is one of a buckle and a positioning slot, and the second connecting part is the other of a buckle and a positioning slot, wherein the buckle engages with the positioning slot.

[0078] In this embodiment, the first connecting part is one of a buckle and a positioning slot, and the second connecting part is the other of a buckle and a positioning slot. The buckle engages with the positioning slot to facilitate the installation of the baffle assembly onto the lamp holder 2.

[0079] In one specific embodiment, the first connecting part is a buckle and the second connecting part is a positioning slot, which facilitates the installation of the baffle assembly onto the lamp holder 2 and can position the installation position of the baffle assembly, so that the baffle assembly is symmetrically distributed on both sides of multiple ultraviolet lamps 3 to ensure the consistency of the light path.

[0080] In one specific embodiment, the end of the first baffle 4 away from the filter screen 1 and the end of the second baffle 5 away from the filter screen 1 are connected as one unit, and a snap fastener is provided at the connection position of the first baffle 4 and the second baffle 5.

[0081] In one embodiment, the lamp holder 2 is made of a thermally conductive insulating material.

[0082] In this embodiment, the lamp holder 2 is made of thermally conductive and insulating material, which can effectively dissipate the heat generated by the ultraviolet lamp 3.

[0083] In one embodiment, the output intensity of the ultraviolet lamp 3 is P, where P ≥ 1 mW / cm². 2; and / or, the wavelength of the ultraviolet light emitted by the ultraviolet lamp 3 is 260-280nm; and / or, the rotation speed of the filter 1 is 0.3r / min.

[0084] In this embodiment, the output intensity of the ultraviolet lamp is made greater than or equal to 1 mW / cm². 2 With a wavelength of 260-280nm, thorough sterilization is ensured, allowing multiple UV lamps to completely sterilize the filter and prevent photoreactivation. By reducing the rotation speed of filter 1 to 0.3r / min, the continuous irradiation time for each fold is extended, ensuring a cumulative UV dose ≥10mJ / cm², achieving efficient inactivation and effectively inhibiting microbial photoreactivation, thus achieving comprehensive disinfection of the filter.

[0085] In related technologies, three light strips are used. In this embodiment, a single light strip is used, with eight ultraviolet lamps 3 mounted on it. The output intensity of each ultraviolet lamp 3 is greater than or equal to 1 mW / cm³, with a wavelength of 260-280 nm. The spacing between the ultraviolet lamps 3 is designed to match the pleat pitch of the filter 1. The ultraviolet lamps 3 are positioned directly in front of the center of the filter 1, eliminating blind spots and ensuring comprehensive coverage, significantly increasing the unit radiation energy. In related technologies, the rotation speed of the filter 1 is 1.2 r / min. In this embodiment, the rotation speed is reduced to 0.3 r / min, extending the continuous irradiation time for each pleat and ensuring a cumulative ultraviolet dose ≥10 mJ / cm². This achieves efficient inactivation and effectively inhibits the photoreactivation of microorganisms, achieving comprehensive disinfection of the filter. The ultraviolet light strip is located on the outside of the filter, working in conjunction with the filter's rotation to enhance airflow disturbance and heat dissipation, extending the lifespan of the light strip.

[0086] This embodiment significantly reduces the number of light sources while improving sterilization reliability. It also features a simplified structure, convenient maintenance, high safety, and strong compatibility, making it suitable for various household and commercial air purification devices with broad industrialization prospects.

[0087] According to an embodiment of the present invention, another aspect provides an air treatment device including the filter assembly provided in the above embodiments.

[0088] In this air purification device, the lamp holder 2 is located on one side of the filter 1. Multiple ultraviolet lamps 3 are mounted on the lamp holder 2, and their vertical irradiation range covers the filter 1. Therefore, the ultraviolet light 301 emitted by the ultraviolet lamps 3 can completely cover the filter 1 in the vertical direction. Combined with the rotation of the filter 1 around its central axis, the ultraviolet light 301 can scan the entire surface of the filter 1, achieving dynamic and comprehensive disinfection and avoiding static irradiation blind spots. By installing baffle assemblies on both sides of the multiple ultraviolet lamps 3, the baffle assemblies prevent ultraviolet light 301 from leaking out and blocking the ultraviolet light 301 reflected from the filter 1 from irradiating the outside of the air purification device, thus avoiding harm to the human body. Furthermore, the ultraviolet light 301 is concentrated on the inner side of the baffle assembly, which can improve the disinfection efficiency.

[0089] In one embodiment, the air handling equipment further includes a housing 6, which has an axial mounting groove located on the outside of the filter 1, and a lamp holder 2 located within the axial mounting groove.

[0090] In this embodiment, by providing an axial mounting groove in the housing 6 and placing the lamp holder 2 within the axial mounting groove, it can be ensured that the lamp holder 2 and the filter screen 1 are coaxially mounted, thereby reducing eccentricity.

[0091] Specifically, by providing an axial mounting groove in the outer casing 6 and placing the lamp holder 2 within the axial mounting groove, the eccentricity of the lamp holder 2 can be made less than 0.3 mm.

[0092] In one embodiment, the side wall of the housing 6 is provided with multiple air inlets, through which air enters the air handling unit and undergoes physical filtration through the filter 1. For example... Figure 1 As shown, Figure 1 The arrows in the diagram indicate the direction of airflow.

[0093] Specifically, the air handling equipment includes a base, which is equipped with a drive motor that drives the filter 1 to rotate at a constant speed of 0.3 r / min around the central axis.

[0094] Although embodiments of the invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the invention, and such modifications and variations all fall within the scope defined by this application.

Claims

1. A filter assembly, characterized in that, include: Filter screen (1), wherein the filter screen (1) is rotatably disposed; A lamp holder (2) is provided on one side of the filter (1). The lamp holder (2) is provided with a plurality of ultraviolet lamps (3), and the irradiation range of the plurality of ultraviolet lamps (3) in the height direction covers the filter (1). A baffle assembly is disposed on both sides of the plurality of ultraviolet lamps (3).

2. The filter assembly according to claim 1, characterized in that, The baffle assembly includes a first baffle (4), which is disposed on both sides of the plurality of ultraviolet lamps (3) and perpendicular to the lamp holder (2). The height of the first baffle (4) is not lower than the effective filtration height of the filter (1). The first baffle (4) can reflect light, and there is a gap between the first baffle (4) and the surface of the filter (1).

3. The filter assembly according to claim 2, characterized in that, The baffle assembly further includes a second baffle (5), which is disposed on both sides of the lamp holder (2). The first baffle (4) is located between the two second baffles (5), so the height of the second baffle (5) is not lower than the effective filtration height of the filter screen (1). The angle between the second baffle (5) and the extension surface (7) located on both sides of the lamp holder (2) is an acute angle. The extension surface (7) is coplanar with the lamp holder (2). The second baffle (5) can reflect light, and there is a gap between the second baffle (5) and the surface of the filter screen (1).

4. The filter assembly according to claim 3, characterized in that, The angle between the second baffle (5) and the extension surface (7) is 23°.

5. The filter assembly according to claim 3, characterized in that, The first baffle (4) and the second baffle (5) include a substrate and a reflective layer disposed on the surface of the substrate.

6. The filter assembly according to claim 5, characterized in that, The reflective layer has micron-sized pits.

7. The filter assembly according to claim 5, characterized in that, The reflective layer is an aluminum coating.

8. The filter assembly according to any one of claims 1 to 7, characterized in that, The baffle assembly is provided with a first connecting part, and the lamp holder (2) is provided with a second connecting part, and the first connecting part is connected to the second connecting part.

9. The filter assembly according to claim 8, characterized in that, The first connecting part is one of a buckle and a positioning slot, and the second connecting part is the other of a buckle and a positioning slot, wherein the buckle engages with the positioning slot.

10. The filter assembly according to any one of claims 1 to 7, characterized in that, The lamp holder (2) is made of thermally conductive and insulating material.

11. The filter assembly according to any one of claims 1 to 7, characterized in that, The output intensity of the ultraviolet lamp (3) is P, where P ≥ 1 mW / cm². 2 ; And / or, the wavelength of the ultraviolet light emitted by the ultraviolet lamp (3) is 260-280 nm; And / or, the rotational speed of the filter (1) is 0.3 r / min.

12. An air handling device, characterized in that, Includes the filter assembly according to any one of claims 1 to 11.

13. The air handling equipment according to claim 12, characterized in that, The air handling equipment also includes a housing (6), which has an axial mounting groove located on the outside of the filter (1), and the lamp holder (2) is located inside the axial mounting groove.

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