Photocatalyst sterilization assembly for air purifier

Abstract

The utility model discloses a photocatalyst sterilization assembly for an air purifier. The photocatalyst sterilization assembly comprises a shell of the photocatalyst sterilization assembly, an air inlet is formed in the upper end of the shell, an air outlet is formed in the lower end of the shell, a cylindrical photocatalyst carrier is installed in the shell, and a light source belt is installed on the inner wall of the shell and surrounds the photocatalyst carrier; an air inlet plate is installed in the air inlet in a threaded mode, an air outlet plate is installed in the air outlet, a flow guide plate is arranged on the inner wall of the shell, the flow guide plate is arranged in a spiral shape, and the cylindrical photocatalyst carrier is inserted into the center of the spiral flow guide plate. The cylindrical photocatalyst carrier is arranged in the shell, so that the flowing distance and the retention time of air in the shell are greatly increased, and the air can have more time to be in full contact with the cylindrical photocatalyst carrier, so that the decomposition and killing effects of the photocatalyst on harmful substances such as bacteria in the air are improved, and the overall sterilization efficiency of the equipment is improved.

Description

Technical Field

[0001] This utility model relates to the field of air purification equipment technology, specifically a photocatalytic sterilization component for an air purifier. Background Technology

[0002] The function and significance of air purifiers lie in their ability to effectively remove particulate matter such as dust, pollen, and smoke from the air through various filtration and purification technologies, such as filter filtration, activated carbon adsorption, photocatalytic decomposition, and negative ion deposition. They also adsorb harmful chemical gases such as formaldehyde, benzene, and TVOCs, and kill microorganisms such as bacteria and viruses, thereby improving indoor air quality and creating a healthier, more comfortable, and fresher breathing environment for people. This helps reduce the risk of respiratory diseases, allergic reactions, and other health problems, and is of great significance for protecting human health, especially for sensitive groups such as the elderly, children, and pregnant women who spend long periods of time indoors, as well as improving people's quality of life and work efficiency.

[0003] A search revealed Chinese patent application CN201810339940.1, which discloses a photocatalytic air purifier. The purifier includes a main body, a vacuum pump, a cooling structure, an exhaust vent, a mounting bracket, fixing holes, and a concentrating structure. The main body features a vacuum pump to accelerate airflow and a concentrating structure for dust collection. A cooling structure for cooling is located near the exhaust vent. The main body also includes a mounting bracket and fixing holes for installation and positioning. This invention utilizes a vacuum pump to promote airflow within the purifier, while the concentrating structure facilitates air entry and removal of larger dust particles. The mounting bracket, combined with the fixing holes, allows for easy installation on walls or floors, adapting to different indoor environments and improving installation efficiency.

[0004] The photocatalytic sterilization component in the above technical solution is similar to traditional components. When air enters the purifier, the residence time is too short, resulting in insufficient contact with the photocatalytic carrier and low sterilization efficiency. Therefore, we need to propose a photocatalytic sterilization component for air purifiers. Utility Model Content

[0005] The purpose of this invention is to provide a photocatalytic sterilization component for air purifiers, which greatly increases the airflow distance and residence time within the housing, allowing the air to have more time to fully contact the cylindrical photocatalytic carrier, thereby improving the decomposition and killing effect of the photocatalyst on harmful substances such as bacteria in the air, and enhancing the overall sterilization efficiency of the device, thus solving the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A photocatalytic sterilization component for an air purifier includes:

[0008] The housing of the photocatalytic sterilization component;

[0009] The upper end of the housing is provided with an air inlet, the lower end of the housing is provided with an air outlet, a cylindrical photocatalyst carrier is installed inside the housing, and a light source strip is installed around the photocatalyst carrier on the inner wall of the housing.

[0010] An air inlet plate is installed in the internal thread of the air inlet, and an air outlet plate is installed in the air outlet. A guide plate is provided on the inner wall of the housing. The guide plate is spirally arranged. A cylindrical photocatalyst carrier is inserted into the center of the spiral guide plate, and the outer wall of the photocatalyst carrier and the inner wall of the guide plate are fitted with a small gap. The light source strip is also spirally arranged and is located in the channel formed by the spiral guide plate.

[0011] Preferably, both the air inlet plate and the air outlet plate are provided with round holes, and multiple sets of round holes are arranged in a equidistant ring.

[0012] Preferably, both the air inlet and the air outlet are provided with baffles, and a connecting rod is provided between the edge of the baffle and the inner wall of the housing.

[0013] Preferably, the outer walls of the air inlet plate and the air outlet plate are provided with external thread sections, and the inner walls of the air inlet and the air outlet are provided with external thread sections, and the external thread sections and the internal thread sections are matched.

[0014] Preferably, the top surface of the air inlet plate and the bottom surface of the air outlet plate are symmetrically provided with levers for rotating the air inlet plate and the air outlet plate, and the levers are arranged in an arc shape.

[0015] Preferably, a notch is provided on the baffle located inside the air outlet. The notch is circular and is used for removing and inserting the photocatalyst carrier.

[0016] Preferably, the two ends of the housing are symmetrically provided with brackets, and the ends of the brackets are provided with fixing plates with fixing holes. The fixing plates are used to fix the housing in the inner cavity of the air purifier.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] 1. This utility model, through the setting of a spiral guide plate, allows air to flow along a spiral path inside the purifier, greatly increasing the air flow distance and residence time within the casing. This allows the air to have more time to fully contact the cylindrical photocatalyst carrier, thereby improving the decomposition and killing effect of the photocatalyst on harmful substances such as bacteria in the air and enhancing the overall sterilization efficiency of the equipment.

[0019] 2. The spiral-shaped light source, positioned within the channel formed by the guide plate, provides uniform illumination to the photocatalyst carrier throughout the airflow process, ensuring the photocatalyst remains in a state of optimal catalytic activity and further enhancing its bactericidal effect. Simultaneously, this arrangement allows for more efficient use of light, improving light energy utilization. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the air inlet structure of this utility model;

[0022] Figure 3 This is a schematic diagram of the air outlet structure of this utility model.

[0023] In the diagram: 1. Housing; 2. Air inlet; 3. Air outlet; 4. Bracket; 5. Fixing plate; 6. Photocatalyst carrier; 7. Light source strip; 8. Baffle; 9. Connecting rod; 10. Air inlet plate; 11. Round hole; 12. Toggle block; 13. External thread section; 14. Internal thread section; 15. Notch; 16. Guide plate; 17. Air outlet plate. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figure 1-3 This utility model provides a technical solution:

[0026] A photocatalytic sterilization component for an air purifier includes:

[0027] The housing 1 of the photocatalytic sterilization component; the upper end of the housing 1 is provided with an air inlet 2, the lower end of the housing 1 is provided with an air outlet 3, a cylindrical photocatalytic carrier 6 is installed inside the housing 1, and a light source strip 7 is installed around the photocatalytic carrier 6 on the inner wall of the housing 1.

[0028] The housing 1 of the photocatalytic sterilization component serves as the supporting and protective structure for the entire device. An air inlet 2 at the top allows air to enter, while an air outlet 3 at the bottom allows purified air to exit. A cylindrical photocatalytic carrier 6 is installed inside. Under the illumination of a light source strip 7, the photocatalytic carrier 6 utilizes a photocatalytic reaction to decompose harmful substances such as bacteria in the air. The light source strip 7 is installed around the photocatalytic carrier 6, providing light energy for the photocatalytic reaction.

[0029] The housing 1 provides a stable internal space, ensuring the orderly assembly of all components and allowing air to flow and be purified along a preset path. The photocatalyst carrier 6 and the light source strip 7 are the core components for achieving the sterilization function. The light source strip 7 activates the photocatalyst carrier 6 to work, thereby sterilizing and purifying the air.

[0030] Among them, the photocatalyst carrier 6 is a cylindrical carrier made of porous ceramic material, which has a large number of interconnected micropores inside, providing a large specific surface area for the photocatalyst material. The photocatalyst material is loaded on both the outer surface of the carrier and the inner wall of the micropores. The photocatalyst material is modified titanium dioxide, which is doped with metal ions and non-metal elements so that it can be excited in the visible light range.

[0031] Nanowire arrays are grown on the inner walls of the micropores of the porous carrier, which further increases the contact area between the photocatalyst and the air. At the same time, the nanowire structure is conducive to light scattering and absorption, thus improving the utilization rate of light.

[0032] Among them, the light source strip 7 integrates ultraviolet LEDs and visible light LEDs. The light emitted by the visible light LEDs can excite the modified photocatalyst material and improve its catalytic efficiency under normal ambient light; the ultraviolet LEDs can be turned on when it is necessary to enhance the sterilization effect, and can further kill stubborn bacteria.

[0033] Please see Figure 2-3 :

[0034] An air inlet plate 10 is threaded onto the air inlet 2, and an air outlet plate 17 is installed inside the air outlet 3. A guide plate 16 is provided on the inner wall of the housing 1, and the guide plate 16 is arranged in a spiral shape. A cylindrical photocatalyst carrier 6 is inserted into the center of the spiral guide plate 16, and the outer wall of the photocatalyst carrier 6 and the inner wall of the guide plate 16 are fitted with a small gap. The light source strip 7 is also spiral-shaped and is located within the channel formed by the spiral guide plate 16. Both the air inlet plate 10 and the air outlet plate 17 are provided with circular holes 11, and multiple sets of circular holes 11 are arranged equidistantly around the perimeter.

[0035] An air inlet plate 10 is threaded onto the air inlet 2, and an air outlet plate 17 is installed at the air outlet 3. The circular holes 11 on the air inlet plate 10 and the air outlet plate 17 allow air to pass through while simultaneously filtering large particles of dust and impurities. A spiral guide plate 16 on the inner wall of the housing 1 guides the air along a spiral path around the photocatalyst carrier 6.

[0036] The round holes 11 on the air inlet plate 10 and the air outlet plate 17 perform preliminary filtration, improving the cleanliness of the air entering the purifier. The spiral guide plate 16 prolongs the residence time of air in the housing 1, increasing the contact opportunity between air and the photocatalyst carrier 6, resulting in better sterilization. The small gap ensures effective air contact with the photocatalyst carrier 6, avoiding airflow short-circuiting and improving purification efficiency.

[0037] Please see Figure 2-3 :

[0038] Both the air inlet 2 and the air outlet 3 are equipped with baffles 8, and a connecting rod 9 is provided between the edge of the baffle 8 and the inner wall of the housing 1. The outer walls of the air inlet plate 10 and the air outlet plate 17 are provided with external thread sections 13, and the inner walls of the air inlet 2 and the air outlet 3 are also provided with external thread sections 13, which are matched with internal thread sections 14. Symmetrical levers 12 are provided on the top surface of the air inlet plate 10 and the bottom surface of the air outlet 3 for rotating the air inlet plate 10 and the air outlet plate 17; the levers 12 are arc-shaped. A notch 15 is provided on the baffle 8 located inside the air outlet 3; the notch 15 is circular and is used for removing and inserting the photocatalyst carrier 6.

[0039] The baffles 8 inside the air inlet 2 and air outlet 3 are connected to the inner wall of the housing 1 via connecting rods 9, serving as supports and limiting elements. The air inlet plate 10 and air outlet plate 17 are screwed into the inner wall of the air inlet 2 and air outlet 3 via external threaded sections 13, respectively, and abut against the corresponding baffles 8 when screwed in. The levers 12 on the top surface of the air inlet plate 10 and the bottom surface of the air outlet plate 17 facilitate the rotation of the air inlet plate 10 and the air outlet plate 17, enabling installation and disassembly.

[0040] The baffle 8 enhances the stability of the air inlet 2 and air outlet 3 structures, ensuring that the air inlet plate 10 and air outlet plate 17 are securely installed. The threaded connection facilitates the installation and replacement of the air inlet plate 10 and air outlet plate 17, while the lever 12 provides convenience for operation, making equipment maintenance simpler.

[0041] When the air inlet plate 10 is screwed into the air inlet 2, the bottom surface of the air inlet plate 10 abuts against the baffle 8 inside the air inlet 2. When the air outlet plate 17 is screwed into the air outlet 3, the top surface of the air outlet plate 17 abuts against the baffle 8 inside the air outlet 3.

[0042] When the device is in use, the air inlet 2 is connected to the air inlet pipe of the air purifier, the air outlet 3 is connected to the air outlet pipe of the air purifier, the upper end of the photocatalyst carrier 6 is in contact with the baffle 8 inside the air inlet 2, and the lower end of the photocatalyst carrier 6 is in contact with the air outlet plate 17. When the air outlet plate 17 is removed, the photocatalyst carrier 6 can be inserted or pulled out from the housing 1.

[0043] This design ensures the photocatalyst carrier 6 is securely installed and facilitates easy replacement or maintenance, reducing the difficulty of equipment maintenance and guaranteeing long-term stable operation of the equipment.

[0044] Please see Figure 1 :

[0045] The housing 1 is symmetrically provided with brackets 4 at both ends, and the end of the bracket 4 is provided with a fixing plate 5 with fixing holes. The fixing plate 5 is used to fix the housing 1 in the inner cavity of the air purifier.

[0046] The brackets 4 at both ends of the housing 1 have fixing holes on the end plates 5. Bolts or other connectors are used to fix the housing 1 to the inner cavity of the air purifier through these fixing holes. The brackets 4 and fixing plates 5 provide a reliable installation method for the photocatalytic sterilization component, allowing it to be stably installed inside the air purifier, ensuring the stability of the equipment during operation and preventing the purification effect from being affected by factors such as vibration.

[0047] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A photocatalytic sterilization component for an air purifier, characterized in that, include: The housing of the photocatalytic sterilization component (1); The upper end of the housing (1) is provided with an air inlet (2), the lower end of the housing (1) is provided with an air outlet (3), a cylindrical photocatalyst carrier (6) is installed inside the housing (1), and a light source strip (7) is installed around the photocatalyst carrier (6) on the inner wall of the housing (1). An air inlet plate (10) is installed in the internal thread of the air inlet (2), and an air outlet plate (17) is installed in the air outlet (3). A guide plate (16) is provided on the inner wall of the housing (1). The guide plate (16) is spirally arranged. A cylindrical photocatalyst carrier (6) is inserted into the center of the spiral guide plate (16), and the outer wall of the photocatalyst carrier (6) and the inner wall of the guide plate (16) are fitted with a small gap. The light source strip (7) is also spirally arranged and is located in the channel formed by the spiral guide plate (16).

2. The photocatalytic sterilization component for an air purifier according to claim 1, characterized in that: Both the air inlet plate (10) and the air outlet plate (17) are provided with round holes (11), and multiple sets of round holes (11) are arranged in a equidistant ring.

3. The photocatalytic sterilization component for an air purifier according to claim 1, characterized in that: Both the air inlet (2) and the air outlet (3) are equipped with baffles (8), and a connecting rod (9) is provided between the edge of the baffle (8) and the inner wall of the housing (1).

4. A photocatalytic sterilization component for an air purifier according to claim 1, characterized in that: The outer walls of the air inlet plate (10) and the air outlet plate (17) are provided with external thread sections (13), and the inner walls of the air inlet (2) and the air outlet (3) are provided with external thread sections (13). The external thread sections (13) and the internal thread sections (14) are matched.

5. A photocatalytic sterilization component for an air purifier according to claim 1, characterized in that: The top surface of the air inlet plate (10) and the bottom surface of the air outlet (3) are symmetrically provided with levers (12) for rotating the air inlet plate (10) and the air outlet plate (17). The levers (12) are arranged in an arc shape.

6. A photocatalytic sterilization component for an air purifier according to claim 3, characterized in that: A notch (15) is provided on the baffle (8) located inside the air outlet (3). The notch (15) is circular and is used for the removal and insertion of the photocatalyst carrier (6).

7. A photocatalytic sterilization component for an air purifier according to claim 1, characterized in that: The housing (1) is symmetrically provided with brackets (4) at both ends, and the end of the bracket (4) is provided with a fixing plate (5) with fixing holes. The fixing plate (5) is used to fix the housing (1) in the inner cavity of the air purifier.

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