Air filtering structure
By combining light guide strips and LED lights, the problem of small illumination range and low intensity of existing filter light sources is solved, realizing full reaction of photocatalysis and multiple filtration effects, thus improving disinfection and filtration capabilities.
Patent Information
- Application Number
- CN202423049555.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-10
- Publication Date
- 2026-01-06
- Estimated Expiration
- 2034-12-10
AI Technical Summary
Existing filters have a small light source illumination range and low intensity, resulting in insufficient photocatalytic reaction, poor disinfection effect, and a single filtration effect, which cannot effectively intercept dust particles.
The system combines a light guide strip and LED lights. The light guide strip is made of light-guiding material and spans the inside of the frame. The light emitted by the LED lights shines on the filter through the light guide strip. The filter includes an outer frame, a meltblown fiber layer, an activated carbon layer, and a photocatalyst skeleton. The photocatalyst skeleton is coated with photocatalyst to achieve all-round high-intensity irradiation, combined with the filtration function of the electret-treated meltblown fiber layer and activated carbon layer.
It achieves full reaction of photocatalysis, improves disinfection effect, effectively decomposes organic and inorganic pollutants, achieves multiple filtration, disinfection and deodorization effects, reduces cost and reduces the volume of filter structure.
Smart Images
Figure CN223760765U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of filter technology, specifically to an air filtration structure. Background Technology
[0002] Traditional filtration structures typically use filters to intercept dust and particulate matter, but they do not have the function of actively decomposing odors. Instead, they add activated carbon to adsorb odors. However, activated carbon is easily saturated and may even emit odors.
[0003] Photocatalysts, also known as photocatalysts, are a general term for semiconductor materials with photocatalytic functions, represented by nano-sized titanium dioxide. They can produce highly oxidizing substances under light irradiation, effectively degrading toxic and harmful gases in the air such as formaldehyde, thus purifying the air efficiently. They can also effectively kill various bacteria, making photocatalysts widely used in air purification devices. Currently, some filters incorporate photocatalysts, using direct light irradiation on the photocatalyst carrier to generate active oxygen substances that decompose organic or inorganic gas molecules on the filter.
[0004] However, these filters still have the following problems: 1. The light source has a small illumination range and low illumination intensity, which makes it impossible for the photocatalyst to fully react, resulting in poor disinfection effect; 2. Only photocatalyst is used for disinfection, resulting in a single filtration effect that cannot filter dust particles.
[0005] To address one of the aforementioned problems, this utility model provides an air filtration structure. Utility Model Content
[0006] The purpose of this utility model is to address the shortcomings and deficiencies of the existing technology by providing an air filtration structure that has the advantages of photocatalytic disinfection, full photocatalytic reaction, good disinfection effect, low cost, and small size.
[0007] To achieve the above objectives, the technical solution adopted by this utility model is: an air filtration structure, comprising:
[0008] Frame;
[0009] The light guide strip, made of light guide material, is installed across the inner side of the frame.
[0010] A filter is disposed within the frame and located above the light guide strip. The filter includes: a filter screen frame, and, from top to bottom, the following components are disposed inside the filter screen frame: an air inlet frame, a meltblown fiber layer, an activated carbon layer, and a photocatalyst frame.
[0011] An LED light is mounted on the frame and abuts against the end of the light guide strip to guide the light emitted by the LED light into the interior of the light guide strip, and then illuminate the filter through the light guide strip, so that the photocatalyst on the photocatalyst skeleton on the filter can fully react to disinfect the air passing through the filter.
[0012] The present invention is further provided that a photocatalyst is sprayed onto the photocatalyst skeleton.
[0013] The present invention further provides that the meltblown fiber layer is made of meltblown fiber that has undergone electret treatment.
[0014] The present invention further provides that the side of the filter near the light guide strip has a groove corresponding to the light guide strip; the light guide strip is at least partially disposed inside the groove, and there is a gap between the light guide strip and the inner wall of the groove.
[0015] The present invention further provides that the light guide strip is provided in multiple sets, and the multiple sets of light guide strips are arranged parallel to each other and spaced apart.
[0016] The present invention further provides that the LED lights are provided in two sets, which respectively abut against the left and right ends of the light guide strip.
[0017] In a further embodiment of this invention, the surface of the light guide strip is provided with a photocatalyst.
[0018] The present invention further provides that the upper side of the light guide strip is configured as a wind-guiding arc surface.
[0019] The present invention further provides that the bottom of the light guide strip is provided with a serrated reflective surface to reflect the light from the inside of the light guide strip toward the filter side.
[0020] The present invention further includes a silicone frame on the outside of the frame.
[0021] After adopting the above technical solution, the beneficial effects of this utility model are as follows:
[0022] In this invention, the filter includes: a filter screen frame, and, from top to bottom, arranged inside the filter screen frame: an air inlet frame, a meltblown fiber layer, an activated carbon layer, and a photocatalytic frame. Air passes through the filter from top to bottom. The meltblown fiber layer intercepts and filters larger dust particles in the air. The activated carbon layer temporarily stores pollutants that have not yet been filtered by the meltblown fiber layer within its pores and adsorbs odors from the air. After the photocatalyst on the photocatalytic frame undergoes a full catalytic reaction, it generates strong oxidizing substances (such as hydroxyl radicals and oxygen) on its surface. These substances not only decompose pollutants and VOCs in the activated carbon layer but also decompose inorganic pollutants in the air such as ammonia and hydrogen sulfide, preventing VOCs from coupling into acetic acid, thus achieving deacidification and deodorization effects. This provides multiple effects of filtration, disinfection, and deodorization for the air passing through the filter. Attached Figure Description
[0023] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0024] Figure 1 This is a schematic diagram of the structure of this utility model;
[0025] Figure 2 This is a structural schematic diagram from another perspective of the present invention;
[0026] Figure 3 This is an exploded view of the structure of this utility model;
[0027] Figure 4 This is an exploded view of the structure of this utility model from another perspective;
[0028] Figure 5 This is an exploded view of the structure of the filter of this utility model;
[0029] Figure 6 This is a structural schematic diagram from another perspective of the present invention;
[0030] Figure 7 yes Figure 6 A schematic diagram of the cross-section along the AA direction;
[0031] Figure 8 yes Figure 6 A schematic diagram of the cross-section along the BB direction.
[0032] Explanation of reference numerals in the attached drawings: 100, frame; 110, mounting groove; 120, lamp hole; 200, light guide strip; 210, air guide arc surface; 220, serrated reflective surface; 300, filter; 310, groove; 320, filter screen outer frame; 330, air inlet frame; 340, meltblown fiber layer; 350, activated carbon layer; 360, photocatalyst frame; 400, LED light; 600, circuit mounting plate. Detailed Implementation
[0033] The present invention will be further described in detail below with reference to the accompanying drawings.
[0034] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive element, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.
[0035] This embodiment relates to an air filtration structure, such as Figure 1-8 As shown, it includes: frame 100, light guide strip 200, filter 300 and LED light 400.
[0036] The light guide strip 200 is made of light-guiding material and is installed across the inner side of the frame 100. The filter 300 is embedded in the inner side of the frame 100 and located above the light guide strip 200 to filter the air passing through the inner side of the frame 100. The LED light 400 is installed on the frame 100 and abuts against the end of the light guide strip 200, so that the light emitted by the LED light 400 can be directly guided into the light guide strip 200. Since the light guide strip 200 is made of light-guiding material, the light from the LED light 400 will be conducted to all parts of the light guide strip 200, so that the light can shine onto the filter 300 through all parts of the light guide strip 200.
[0037] Specifically, the filter 300 includes: a filter frame 320, and, from top to bottom, the following components arranged inside the filter frame 320: an air inlet frame 330, a meltblown fiber layer 340, an activated carbon layer 350, and a photocatalyst frame 360. Air passes through the filter 300 from top to bottom. The meltblown fiber layer 340 is fixed to the lower side of the air inlet frame 330 to filter the air, intercepting and filtering larger dust particles. The activated carbon layer 350 is located below the meltblown fiber layer 340. The activated carbon layer 350 has strong adsorption capacity to temporarily store pollutants that have not yet been filtered by the meltblown fiber layer 340 within the pores of the activated carbon, and adsorbs pollutants from the air. To eliminate odors, a photocatalytic skeleton 360 is positioned below the activated carbon layer 350. The surface of the photocatalytic skeleton 360 is coated with photocatalyst. LED lights 400, through light guide strips 200, fully irradiate the photocatalytic skeleton 360 of the filter 300. The large irradiation range and high intensity allow the photocatalyst on the skeleton 360 to undergo a full catalytic reaction, generating strong oxidizing substances (such as hydroxyl radicals and oxygen) on its surface. These substances not only decompose pollutants and VOCs in the activated carbon layer 350 but also decompose inorganic pollutants in the air, such as ammonia and hydrogen sulfide, preventing VOCs from coupling into acetic acid, thus achieving deacidification and deodorization. This further achieves multiple effects of filtration, disinfection, and deodorization on the air passing through the filter 300. In this embodiment, the photocatalyst is sprayed onto the photocatalytic skeleton 360 to ensure a full catalytic reaction and achieve good disinfection and filtration effects. Of course, in other embodiments, the photocatalyst can also be loaded onto the photocatalyst skeleton 360 in other ways to ensure its good disinfection and filtration effect.
[0038] In this embodiment, the meltblown fiber layer 340 is made of electret-treated meltblown fiber. The electret-treated meltblown fiber is electrostatic and can adsorb fine dust in the air, thereby improving the filtration effect of the filter 300.
[0039] In this embodiment, a groove 310 is provided on the side of the filter 300 near the light guide strip 200, corresponding to the light guide strip 200. The light guide strip 200 can cooperate with the groove 310 on the filter 300, so that the upper part or even the entire light guide strip 200 is placed inside the groove 310. This not only allows the filter 300 to be better embedded inside the frame 100, reducing the overall volume of the filter structure, but also allows the light guide strip 200 to effectively illuminate the inner walls of the left and right sides of the groove 310, reducing the illumination distance between the light guide strip 200 and the filter 300, allowing the photocatalyst on the photocatalyst skeleton 360 to be fully catalyzed, ensuring a good disinfection and filtration effect. There is a certain gap between the light guide strip 200 and the inner wall of the groove 310 to allow air to pass smoothly between the light guide strip 200 and the inner wall of the groove 310, avoiding affecting the airflow of the filter 300. The filter 300 has multiple grooves 310 evenly distributed on its lower side, corresponding to the light guide strip 200. This increases the area illuminated by the light guide strip 200, allowing the photocatalyst on the photocatalyst skeleton 360 to fully react and achieve a good disinfection effect. As a preferred solution, photocatalyst is also provided on the surface of the light guide strip 200. The light from the LED light 400 is directed into the light guide strip 200, directly illuminating and catalyzing the photocatalyst on it. Combined with the photocatalyst on the filter 300, this enables secondary disinfection of the air, improving the disinfection and filtration effect.
[0040] As a preferred embodiment, the light guide strip 200 is disposed on the inner side of the frame 100, spanning the left and right sides of the frame 100, and parallel to the front edge of the frame 100. Two sets of LED lights 400 are disposed, respectively abutting the left and right ends of the light guide strip 200, to ensure the light transmission and illumination of the light guide strip 200, thereby improving the air disinfection effect. In this embodiment, multiple sets of light guide strips 200 are disposed, with parallel and spaced intervals between them to allow air to pass through smoothly. Each set of light guide strips 200 is equipped with corresponding LED lights 400. Simultaneously, the filter 300 is illuminated by multiple sets of light guide strips 200, so that the photocatalyst skeleton 360 on the filter 300 can fully react, achieving a good disinfection effect.
[0041] In this embodiment, the upper side of the light guide strip 200 is configured as a guide arc surface 210 to guide the air above the light guide strip 200 to both sides of the light guide strip 200, allowing the air to pass smoothly through the light guide strip 200, thereby reducing the air resistance of the light guide strip 200 and ensuring the filtration flow rate of the filter structure. The guide arc surface 210 is configured as a bullet shape or other shape to reduce the wind resistance of the light guide strip 200. The LED light 400 abuts against the lower middle part of the light guide strip 200 so that the light from the LED light 400 is well guided into the interior of the light guide strip 200. As a preferred solution, a serrated reflective surface 220 is provided at the bottom of the light guide strip 200, extending along the length of the light guide strip 200. The serrated reflective surface can emit light from the inside of the light guide strip 200 upwards to illuminate the filter 300, achieving a good photocatalytic effect for air disinfection.
[0042] As a preferred embodiment, mounting slots 110 are provided on both sides of the frame 100. A circuit mounting plate 600 is detachably installed in the mounting slot 110, and the LED light 400 is mounted on the circuit mounting plate 600. A lamp hole 120 is provided on the frame 100, on the side of the light guide strip 200, for the LED light 400 to abut against the end of the light guide strip 200, ensuring the installation stability and good performance of the LED light 400. The LED light 400 can be removed along with the circuit mounting plate 600 for easy maintenance and replacement. Simultaneously, the LED light 400 is positioned inside the mounting slot 110, preventing it from directly contacting the filtered air and avoiding damage or corrosion from moisture or other substances in the filtered air, thus ensuring the stability of the LED light 400 in use.
[0043] In this embodiment, the light guide strip 200 is made of PMMI material TT50. TT50 has high light transmittance, transparency, and optical stability, which can effectively transmit light, allowing the light guide strip 200 to properly illuminate the filter 300, enabling the photocatalyst to react fully and ensuring a good disinfection effect. Of course, in other embodiments, the light guide column is made of PC, PMMA, CBC, or other PMMI materials. As a preferred solution, the frame 100 and the light guide strip 200 are integrally molded, which can reduce the manufacturing cost of the filter structure and improve the overall stability of the filter structure.
[0044] As a preferred solution, a silicone frame is provided on the outside of the frame 100. The silicone frame is placed on the outside of the frame 100 to protect and waterproof the frame 100. At the same time, it can increase the airtightness between the filter structure and the filter channel, ensuring that air passes through the filter 300 in the middle of the filter structure to achieve a good filtration effect.
[0045] The above is only used to illustrate the technical solution of this utility model and not to limit it. Any other modifications or equivalent substitutions made by those skilled in the art to the technical solution of this utility model, as long as they do not depart from the spirit and scope of the technical solution of this utility model, should be covered within the scope of the claims of this utility model.
Claims
1. An air filter structure, characterized by, The utility model relates to a frame (100);Light guide strip (200) are made of light guide material, cross set in the inside of frame (100); Filter (300) is set up in the inside of frame (100) and is located the upper side of light guide strip (200), filter (300) includes: filter screen outer frame (320) and by the upper to the inside of filter screen outer frame (320) sequentially set up: air intake framework (330), spray melt fiber layer (340), activated carbon layer (350) and photocatalyst framework (360); LED lamp (400) is set up on frame (100) and is abutted in the end of light guide strip (200), to guide the light that LED lamp (400) emits into the inside of light guide strip (200), again through light guide strip (200) irradiation is to filter (300), so that the photocatalyst on the photocatalyst framework (360) on filter (300) is fully reacted to carry out disinfection and killing to the air that passes through filter (300). The photocatalyst framework (360) is provided with photocatalyst by spraying. The spray melt fiber layer (340) adopts melt-blown fiber treated by electret.
2. The air filtration structure of claim 1, wherein, The side of filter (300) close to light guide strip (200) is provided with a groove (310) corresponding to light guide strip (200);The light guide strip (200) is at least partially arranged in the inside of the groove (310), and the light guide strip (200) and the inner wall of the groove (310) have a gap.
3. The air filtration structure of claim 1, wherein, The light guide strip (200) is provided with multiple groups, and the multiple groups of light guide strips (200) are arranged in parallel and spaced apart.
4. The air filtration structure of claim 1, wherein, The LED lamp (400) is provided with two groups, and is abutted on the left and right ends of the light guide strip (200) respectively.
5. The air filtration structure of claim 1, wherein, The surface of the light guide strip (200) is provided with photocatalyst.
6. The air filtration structure of claim 1, wherein, The upper side of the light guide strip (200) is provided with a wind guide camber (210).
7. The air filtration structure of claim 1, wherein, The bottom of the light guide strip (200) is provided with a zigzag light reflecting surface (220) to reflect the light inside the light guide strip (200) to the filter (300) side.
8. The air filtration structure of claim 1, wherein, The outside of the frame (100) is provided with a silica gel frame.
9. The air filtration structure of claim 1, wherein, 10. The air filtration structure of claim 1, wherein,