Air filter with deodorization function
By combining a mesh filter, a UV lamp, and a titanium dioxide coating, the air purifier solves the problems of activated carbon saturation and difficulty in removing small particulate matter, achieving efficient air purification and convenient maintenance, and providing fresh and healthy indoor air.
Patent Information
- Application Number
- CN202520327821.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-27
- Publication Date
- 2025-12-23
- Estimated Expiration
- 2035-02-27
AI Technical Summary
In existing technologies, activated carbon deodorization is gradually becoming saturated, and its adsorption efficiency for certain harmful gases such as ammonia and formaldehyde is low, requiring frequent filter replacements. Furthermore, existing air filters are ineffective at removing small particulate matter and organic pollutants.
It employs a combination of mesh filter, cross-shaped structure, deodorizing component, and air intake component. It utilizes ultraviolet (UV) lamps and titanium dioxide coating to generate strong oxidizing free radicals that degrade harmful substances. Through physical and chemical adsorption of activated carbon particles, combined with a negative ion generator to generate negative ions that settle particulate matter, it achieves multi-layer purification.
It improves air purification efficiency, extends filter replacement cycle, enhances the ability to remove organic pollutants and odor molecules, provides fresh air and reduces suspended particles, and improves the ease of maintenance and safety of the equipment.
Smart Images

Figure CN223702235U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of filter technology, and in particular to an air filter with deodorization function. Background Technology
[0002] With the continuous improvement of people's living standards and the acceleration of industrialization, air pollution has gradually become a global concern. Indoor air pollution, especially the pollution of harmful gases and odors, has become one of the key factors affecting people's health and quality of life. Therefore, developing high-efficiency air filters, especially those with deodorizing functions, has become an important direction for modern air purification technology.
[0003] For example, Chinese utility model patent application number 202421004002.3 discloses an air filter with deodorization function, including a filter housing, a sealing end cap fixedly installed on the upper end of the filter housing, an air inlet on one side of the sealing end cap, and an air outlet on the other side of the sealing end cap. A filtration mechanism is provided inside the filter housing, the filtration mechanism including air filter paper disposed inside the filter housing, an upper end cap fixedly installed on the upper end of the air filter paper, a lower end cap fixedly installed on the lower end of the air filter paper, and a connection interface on the upper end cap. A deodorization mechanism is provided inside the air filter paper. In this utility model, an air filter with deodorization function can be activated during air filtration. After the drive motor is activated, it drives the agitator blades on the drive shaft to rotate, causing the activated carbon particles inside the activated carbon canister to tumble and fully contact the air inside the filter housing to adsorb odors and moisture, achieving the purpose of purification and deodorization.
[0004] The above solution uses activated carbon for deodorization. Although activated carbon adsorption can effectively remove odors from the air, its adsorption capacity will gradually become saturated as the usage time increases, requiring regular replacement of the filter element. Furthermore, activated carbon may have low adsorption efficiency for some gases such as ammonia and formaldehyde, so improvements are needed. Utility Model Content
[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing an air filter with deodorization function.
[0006] To achieve the above objectives, the present invention adopts the following technical solution: an air filter with deodorization function, comprising a chassis, a mesh filter fixedly connected to the top of the chassis, a top cover fixedly connected to the top of the mesh filter, a threaded collar provided on the top of the top cover, a threaded ring threadedly connected to the inner wall of the threaded collar, a housing fixedly connected to the top of the threaded ring, a cross fixedly connected to the inner wall of the housing, an air intake component provided on the top of the cross, a support plate provided on the inner bottom surface of the chassis, an installation component and a deodorization component provided on the support plate, a guide rod fixedly connected to the top of the support plate, a lifting platform slidably connected to the outer wall of the guide rod, a drive component for lifting the lifting platform provided at the bottom of the chassis, an installation ring fixedly connected to the top of the lifting platform, a power supply socket threadedly connected to the inner wall of the installation ring, and an ultraviolet (UV) lamp fixedly connected to the top of the power supply socket.
[0007] The mesh filter is made of iron wire or non-woven fabric. Through physical interception, it blocks larger solid particles, protecting the subsequent filter element from excessive particulate matter pollution, such as dust, hair, and pollen. The outer wall of the power supply base is provided with threads that match the mounting ring, allowing the power supply base to be fixed on the mounting ring by rotation. The power supply connection method is a traditional screw thread (Edison screw thread) connection, thereby powering the ultraviolet (UV) lamp. The UV lamp irradiates the stainless steel mesh coated with titanium dioxide (TiO2) to generate strong oxidizing free radicals, thereby degrading harmful substances in the air, such as formaldehyde, benzene, and volatile organic compounds (VOCs).
[0008] As a further description of the above technical solution:
[0009] The air intake assembly includes a disc motor fixedly mounted on the top of the cross, and a fan is fixedly connected to the output end of the disc motor.
[0010] The fan blows air to the top on one side and draws air to the bottom on the other, so that the unpurified air is filtered from the mesh filter inwards, and the filtered air is discharged from the protective mesh on the inner wall of the casing.
[0011] As a further description of the above technical solution:
[0012] The mounting assembly includes four recesses formed in the support plate, and each of the four recesses has a locking block that is movably engaged inside.
[0013] By setting four slots, staff can better position the components when installing or replacing the deodorizing components, making it easier to align them and subsequently seal them.
[0014] As a further description of the above technical solution:
[0015] The deodorization component includes a ring movably mounted on the top of a support plate. Two stainless steel meshes are fixedly connected to the top of the ring, and several activated carbon particles are movably installed between opposite sides of the two stainless steel meshes.
[0016] The bottom of the ring is fixedly connected to four clips. The inner wall of the stainless steel mesh furthest from the air filter paper is coated with a titanium dioxide coating. The activated carbon has an extremely high surface area and can remove harmful gases and odors from the air through physical and chemical adsorption.
[0017] As a further description of the above technical solution:
[0018] The drive assembly includes a drive motor fixedly mounted on the bottom of the chassis. A threaded rod is fixedly connected to the output end of the drive motor, and one end of the threaded rod is rotatably connected to the arc-shaped plate.
[0019] The threaded rod is threadedly connected to the lifting platform, and the other end of the arc-shaped plate is fixedly connected to the guide rod. The arc-shaped plate enables the device to maintain more stable operation when lifting.
[0020] As a further description of the above technical solution:
[0021] A protective net is fixedly connected to the inner wall of the casing.
[0022] By installing a protective net, accidental injury can be avoided when the fan is running, thus improving safety.
[0023] As a further description of the above technical solution:
[0024] A negative ion generator is fixedly installed at the bottom of the cross, and a controller is fixedly installed at the top of the top cover.
[0025] By setting up a negative ion generator, negative ions can be generated through an electric field. These negative ions combine with particulate matter in the air, making it heavier and causing it to settle, thus reducing suspended particles in the air. At the same time, negative ions can react with some odor molecules in the air, partially eliminating odors and thus having a certain deodorizing effect.
[0026] As a further description of the above technical solution:
[0027] An air filter paper is fixedly connected to the inner bottom surface of the chassis.
[0028] The air filter paper can remove most of the harmful particles in the air through physical filtration, ensuring clean air.
[0029] This utility model has the following beneficial effects:
[0030] 1. Compared with existing technologies, this air filter with deodorization function can remove large and small particulate matter through the combined use of a mesh filter, cross-shaped structure, deodorization component and air intake component. Then, through the synergistic effect of activated carbon particles, ultraviolet UV lamp and titanium dioxide coating, it removes organic pollutants and odor molecules in the air, further improving the air purification effect. Finally, the negative ion generator releases negative ions to help freshen the air and effectively reduce suspended particles in the air.
[0031] 2. Compared with existing technologies, this air filter with deodorization function, through the coordinated use of structures such as guide rods, lifting platforms, mounting components, and drive components, allows for convenient replacement of activated carbon particles by rotating threaded rings and threaded collars. Furthermore, by starting the drive motor to rotate the threaded rod, the ultraviolet (UV) lamp can be raised and lowered, facilitating cleaning and replacement by staff. At the same time, the air intake component removes the heat from the UV lamp and discharges it, preventing the equipment from overheating and affecting its performance or shortening its service life. Attached Figure Description
[0032] Figure 1 This is a three-dimensional schematic diagram of the overall structure of an air filter with deodorization function proposed in this utility model.
[0033] Figure 2 This is a three-dimensional schematic diagram of the threaded collar and threaded ring structure of an air filter with deodorization function proposed in this utility model.
[0034] Figure 3 This is a three-dimensional schematic diagram of the air intake component structure of an air filter with deodorization function proposed in this utility model;
[0035] Figure 4 This is a three-dimensional schematic diagram of the drive assembly structure of an air filter with deodorization function proposed in this utility model;
[0036] Figure 5 This is a three-dimensional schematic diagram of the installation component structure of an air filter with deodorization function proposed in this utility model.
[0037] Legend:
[0038] 1. Chassis; 2. Mesh filter; 3. Top cover; 4. Threaded collar; 5. Threaded ring; 6. Housing; 7. Cross; 8. Support plate; 9. Guide rod; 10. Lifting platform; 11. Mounting ring; 12. Power supply base; 13. UV lamp; 14. Disc motor; 15. Fan; 16. Groove; 17. Locking block; 18. Circular ring; 19. Stainless steel mesh; 20. Activated carbon granules; 21. Drive motor; 22. Threaded rod; 23. Protective net; 24. Negative ion generator; 25. Controller; 26. Air filter paper; 27. Curved plate. Detailed Implementation
[0039] 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.
[0040] Reference Figure 1-5 This utility model provides an air filter with deodorization function, comprising a chassis 1, a mesh filter 2 fixedly connected to the top of the chassis 1, a top cover 3 fixedly connected to the top of the mesh filter 2, a threaded collar 4 on the top of the top cover 3, a threaded ring 5 threadedly connected to the inner wall of the threaded collar 4, a housing 6 fixedly connected to the top of the threaded ring 5, a cross 7 fixedly connected to the inner wall of the housing 6, an air intake component on the top of the cross 7, and a support plate 8 on the inner bottom surface of the chassis 1, on which an installation device is mounted. The components and deodorizing components include a guide rod 9 fixedly connected to the top of the support plate 8, a lifting platform 10 slidably connected to the outer wall of the guide rod 9, a drive component for raising and lowering the lifting platform 10 located at the bottom of the chassis 1, a mounting ring 11 fixedly connected to the top of the lifting platform 10, a power supply base 12 threadedly connected to the inner wall of the mounting ring 11, and an ultraviolet (UV) lamp 13 fixedly connected to the top of the power supply base 12. The mesh filter 2 is made of iron wire or non-woven fabric and uses physical interception principles to block larger solid particles, protecting the rear... The filter element is protected from excessive particulate pollution, such as dust, hair, and pollen. The outer wall of the power supply base 12 is provided with threads that are compatible with the mounting ring 11, allowing the power supply base 12 to be fixed on the mounting ring 11 by rotation. The power supply connection method is a traditional screw thread (Edison screw thread) connection, thereby powering the ultraviolet UV lamp 13. The ultraviolet UV lamp 13 irradiates the stainless steel mesh 19 coated with titanium dioxide (TiO2) material to generate strong oxidizing free radicals, thereby degrading harmful substances in the air, such as formaldehyde, benzene, and volatile organic compounds (VOCs). Through the combined use of the mesh filter 2, cross 7, deodorizing component, and air intake component, large and small particulate matter can be removed. Furthermore, through the synergistic effect of activated carbon particles 20, ultraviolet UV lamp 13, and titanium dioxide coating, organic pollutants and odor molecules in the air are removed, further improving the air purification effect. Finally, negative ions are released through the negative ion generator 24 to help freshen the air and effectively reduce suspended particles in the air.
[0041] The air intake assembly includes a disc motor 14 fixedly mounted on the top of the cross 7. A fan 15 is fixedly connected to the output end of the disc motor 14. The fan 15 blows air upwards on one side and draws air downwards on the other, thus filtering unpurified air from the mesh filter 2 inwards. The filtered air is then discharged through the protective mesh 23 on the inner wall of the housing 6. The installation assembly includes four grooves 16 formed in the support plate 8. Each of the four grooves 16 has a locking block 17 that is movably engaged. By providing four locking slots, the installation and replacement of the deodorizing assembly can be more easily positioned by the operator. This facilitates the alignment of components by staff, making subsequent sealing easier. The deodorizing component includes a ring 18 movably mounted on the top of the support plate 8. Two stainless steel meshes 19 are fixedly connected to the top of the ring 18. Several activated carbon particles 20 are movably installed between the opposite sides of the two stainless steel meshes 19. The bottom of the ring 18 is fixedly connected to four clips 17. The inner wall of the stainless steel mesh 19 furthest from the air filter paper 26 is coated with a titanium dioxide coating. Activated carbon has an extremely high surface area and can remove harmful gases and odors from the air through physical and chemical adsorption.
[0042] The drive assembly includes a drive motor 21 fixedly mounted on the bottom of the chassis 1. A threaded rod 22 is fixedly connected to the output end of the drive motor 21. One end of the threaded rod 22 is rotatably connected to an arc-shaped plate 27 and threadedly connected to the lifting platform 10. The other end of the arc-shaped plate 27 is fixedly connected to a guide rod 9. The arc-shaped plate 27 ensures more stable operation during lifting. A protective net 23 is fixedly connected to the inner wall of the casing 6. This protective net prevents accidental injury when the fan 15 rotates, improving safety. A negative ion generator 24 is fixedly mounted at the bottom of the cross 7. A controller 25 is fixedly installed on the top of the cover 3. By setting a negative ion generator 24, negative ions can be generated through an electric field. The negative ions combine with particulate matter in the air, making them heavier and causing them to settle, thus reducing suspended particles in the air. At the same time, negative ions can react with some odor molecules in the air, partially eliminating odors and having a certain deodorizing effect. By setting the controller 25, the operation of the device can be better controlled. An air filter paper 26 is fixedly connected to the inner bottom surface of the chassis 1. The air filter paper 26 can remove most of the harmful particles in the air through physical filtration, ensuring clean air.
[0043] Working principle: First, connect the controller 25 electrically to the power supply base 12, the disc motor 14, the drive motor 21, and the negative ion generator 24 for easier control of the device. Then, start the disc motor 14, which rotates to drive the fan 15. The fan 15 draws in air from the bottom and exhausts it from the top, thus drawing in the air through the mesh filter 2 and expelling the filtered air from the top of the fan 15. When this air purifier is working, the air first passes through the mesh filter 2 to remove large particles, then enters the air filter paper 26 to remove fine particles, and then enters the deodorization component. Activated carbon particles 20 adsorb harmful gases and odor molecules to purify the air. Then, the air passes through the stainless steel mesh 19 located on the inside. The power supply base 12 powers the ultraviolet UV lamp 13. The generated ultraviolet rays irradiate the titanium dioxide coating on the stainless steel mesh 19, generating highly oxidizing free radicals that can decompose organic pollutants and odor molecules in the air, such as formaldehyde, benzene, aldehydes and other harmful gases, further purifying the air. Finally, when the air passes through the negative ion generator 24, it releases negative ions to help freshen the air and reduce suspended particles in the air, thereby providing a fresher and healthier indoor air environment.
[0044] When the activated carbon granules 20 need to be replaced after a period of use, hold the housing 6 with both hands and rotate it, simultaneously rotating the threaded ring 5. This will separate the threaded ring 5 from the threaded collar 4, allowing the deodorizing component to be lifted. Replace the activated carbon granules 20 that have been used for a period of time. Then, align the locking block 17 at the bottom of the ring 18 with the groove 16 to align the device. Next, rotate the threaded ring 5 in the opposite direction so that it covers the activated carbon granules 20, preventing them from spilling out. This completes the replacement of the activated carbon granules 20. Similarly, when the ultraviolet lamp 13 needs to be replaced after a period of use or when it becomes dusty, it should be cleaned. The threaded ring 5 can then be separated from the threaded collar 4. Then, the drive motor 21 is started, and the output rotating rod drives the threaded rod 22 to rotate, so that the lifting platform 10 can move along the guide rod 9. This allows the power supply base 12 to synchronously drive the ultraviolet lamp 13 to rise and fall, making it convenient for staff to clean. When replacement is needed, simply rotate the ultraviolet lamp 13 to separate the power supply base 12 from the thread on the mounting ring 11, and the ultraviolet lamp 13 can be removed and replaced. Then, the drive motor 21 is reversed to lower the device back to its original position. When the suction component is started, it can carry away and exhaust the heat from the ultraviolet lamp 13, thus maintaining the device's long-term operation.
[0045] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. An air filter with deodorization function, comprising a chassis (1), characterized in that: A mesh filter (2) is fixedly connected to the top of the chassis (1), and a top cover (3) is fixedly connected to the top of the mesh filter (2). A threaded collar (4) is provided on the top of the top cover (3), and a threaded ring (5) is threadedly connected to the inner wall of the threaded collar (4). A housing (6) is fixedly connected to the top of the threaded ring (5), and a cross (7) is fixedly connected to the inner wall of the housing (6). An air intake component is provided on the top of the cross (7), and a support plate (8) is provided on the inner bottom surface of the chassis (1). The support plate (8) is provided with an installation component and a deodorization component. The top of the support plate (8) is fixedly connected to a guide rod (9). The outer wall of the guide rod (9) is slidably connected to a lifting platform (10). The bottom of the chassis (1) is provided with a drive component that enables the lifting platform (10) to be raised and lowered. The top of the lifting platform (10) is fixedly connected to an installation ring (11). The inner wall of the installation ring (11) is threadedly connected to a power supply base (12). The top of the power supply base (12) is fixedly connected to an ultraviolet UV lamp (13).
2. An air filter with deodorization function according to claim 1, characterized in that: The suction assembly includes a disc motor (14) fixedly mounted on the top of the cross (7), and a fan (15) is fixedly connected to the output end of the disc motor (14).
3. An air filter with deodorization function according to claim 1, characterized in that: The mounting assembly includes four recesses (16) formed in the support plate (8), and each of the four recesses (16) is movably engaged with a locking block (17).
4. An air filter with deodorization function according to claim 1, characterized in that: The deodorization component includes a ring (18) movably mounted on the top of the support plate (8). The inner and outer walls of the ring (18) are fixedly connected with stainless steel mesh (19). Several activated carbon particles (20) are movably installed between opposite sides of the two stainless steel meshes (19).
5. An air filter with deodorization function according to claim 1, characterized in that: The drive assembly includes a drive motor (21) fixedly installed at the bottom of the chassis (1), and a threaded rod (22) is fixedly connected to the output end of the drive motor (21). One end of the threaded rod (22) is rotatably connected to an arc plate (27).
6. An air filter with deodorization function according to claim 1, characterized in that: The inner wall of the casing (6) is fixedly connected with a protective net (23).
7. An air filter with deodorization function according to claim 1, characterized in that: A negative ion generator (24) is fixedly installed at the bottom of the cross (7), and a controller (25) is fixedly installed at the top of the top cover (3).
8. An air filter with deodorization function according to claim 1, characterized in that: An air filter paper (26) is fixedly connected to the inner bottom surface of the chassis (1).
Citation Information
Patent Citations
Air filter with deodorization function
CN222184962U