Efficient formaldehyde purification device for indoor air pollution treatment
By employing a multi-layered filtration structure and disinfection methods, the problems of low filtration efficiency and easy saturation of adsorption materials in existing purification devices have been solved, achieving highly efficient purification and disinfection of harmful gases such as formaldehyde, thus improving air purification effects and equipment lifespan.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-09
- Publication Date
- 2026-04-03
AI Technical Summary
Existing purification devices use a single filtration method, making it difficult to remove all contaminants. They have low filtration efficiency for fine particles and bacteria, traditional adsorption materials are easily saturated and difficult to regenerate, are costly, lack disinfection methods, and cannot effectively purify harmful gases such as formaldehyde.
It adopts a multi-layer filtration structure, including a medical antibacterial cloth layer, a graphene layer, an H13 filter layer, and an activated carbon adsorption layer, combined with a heating module and ultraviolet disinfection lamp beads, to achieve multiple purification and disinfection.
It improves the filtration efficiency for bacteria and fine particles, extends the service life of adsorption materials, reduces the replacement frequency, achieves efficient purification and disinfection of harmful gases such as formaldehyde, and enhances the air purification effect.
Smart Images

Figure CN224080355U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of indoor air purification technology, and in particular to a highly efficient formaldehyde purification device for indoor air pollution control. Background Technology
[0002] As people's living standards improve, they are paying more and more attention to indoor air quality. Indoor air pollution has a wide range of sources, including harmful gases such as formaldehyde and benzene released from decoration materials, as well as microbial pollutants such as dust, bacteria, and viruses generated in daily life. Among the existing indoor air purification technologies, common purification devices have many shortcomings.
[0003] Existing air purification devices have at least the following drawbacks: they rely on a single filtration method, often using simple filters, making it difficult to remove all pollutants; they have low filtration efficiency for fine particles and bacteria, failing to intercept fine dust and some germs; traditional adsorption materials are easily saturated for harmful gases such as formaldehyde, losing their adsorption capacity after saturation and being difficult to regenerate, requiring frequent filter replacements, resulting in high costs; and some purification devices lack effective disinfection methods, failing to eliminate viruses and other microorganisms in the air. Therefore, we have launched a highly efficient formaldehyde purification device for indoor air pollution control. Utility Model Content
[0004] The main objective of this invention is to provide a highly efficient formaldehyde purification device for indoor air pollution control, which can effectively solve the problems in the background technology.
[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:
[0006] A highly efficient formaldehyde purification device for indoor air pollution control includes an outer shell and fixing bolts. The outer shell is mounted on a main body device by four fixing bolts. Pads are fixedly connected to the four corners of the lower end of the main body device. A filter device is slidably installed at the front end of the main body device. Several blades are fixedly installed on the inner wall of the outer shell.
[0007] The main device includes a purification equipment housing. A mounting groove is formed in the middle of the rear wall of the purification equipment housing. A fan housing is fixedly installed in the mounting groove. Mounting lugs are fixedly installed around the outer perimeter of the fan housing. A suction fan is inserted through the middle of the rear end of the fan housing. Heating modules are provided around the four sides of the rear wall of the mounting groove. A lamp plate is fixedly connected to the middle of the lower wall of the mounting groove. Several ultraviolet disinfection lamp beads are fixedly installed on the surface of the lamp plate. Four slots are formed in pairs on the left and right walls of the purification equipment housing. A temperature sensor is provided at the lower part of the rear wall of the purification equipment housing. An exhaust trough is provided at the upper end of the purification equipment housing. A smart control board is provided at the upper front end of the purification equipment housing. The purification equipment housing is located directly behind the outer shell.
[0008] Preferably, the filtration device includes a card frame with four slots at its upper end. Insertion plate frames are inserted into the four slots. The inner walls of the four insertion plate frames are respectively provided with a medical antibacterial cloth layer, a graphene layer, an H13 filter layer and an activated carbon adsorption layer from front to back. The card frame is snapped onto the front part of the inner shell wall of the purification equipment housing.
[0009] Preferably, the plurality of ultraviolet disinfection lamp beads are distributed in a long rectangle at equal intervals, the suction fan is located directly behind the activated carbon adsorption layer, and the four heating modules are respectively located around the outside of the suction fan.
[0010] Preferably, several of the blades are tilted downward at a 20-degree angle, several of the blades are distributed longitudinally at equal intervals, and several of the blades are located directly in front of the medical antibacterial cloth layer.
[0011] Preferably, the exhaust trough is located at the middle of the upper part of the purification equipment housing, and the exhaust trough is connected to the inside of the purification equipment housing. The temperature sensor is located at the lower part of the rear shell wall of the purification equipment housing near the edge, and its sensing end faces the inside of the purification equipment housing.
[0012] Preferably, the width of the card frame is equal to the width of the front part of the inner shell wall of the purification equipment housing, and the dimensions of the medical antibacterial cloth layer, graphene layer, H13 filter layer and activated carbon adsorption layer are fully adapted to the inner frame wall dimensions of the insert frame and are installed in close contact with the inner frame wall of the insert frame. The insert frame and the slot adopt a detachable interference fit connection.
[0013] Preferably, the opening direction of the exhaust groove is consistent with the tilt direction of the blade.
[0014] Compared with the prior art, the present invention has the following beneficial effects:
[0015] 1. In this utility model, the filter device comprises, in sequence, a medical antibacterial cloth layer, a graphene layer, an H13 filter layer, and an activated carbon adsorption layer within its insert frame. The medical antibacterial cloth layer effectively intercepts bacteria and other microorganisms in the air, solving the problem of low filtration efficiency for microorganisms in traditional simple filters and reducing the risk of germ transmission. The graphene layer further adsorbs and decomposes some pollutants, enhancing the purification capacity and overcoming the shortcomings of traditional single-filtration methods in comprehensively removing pollutants. The H13 filter layer, with its high-efficiency filtration performance, blocks tiny particles in the air, ensuring efficient interception of fine dust and other impurities, resulting in cleaner output air. The activated carbon adsorption layer has a strong adsorption effect on harmful gases such as formaldehyde, ensuring fresh indoor air and achieving comprehensive purification of multiple pollutants.
[0016] 2. In this invention, the heating module in the main device plays a crucial role. When the activated carbon adsorption layer becomes saturated, the heating module around the tank wall after installation activates, restoring the activated carbon's adsorption activity and enabling continuous adsorption of harmful gases. This eliminates the need for frequent filter replacements, significantly reducing operating costs and extending the lifespan of the adsorption material.
[0017] 3. In this utility model, a number of ultraviolet disinfection lamp beads are arranged in a long rectangle and equidistantly distributed on the lamp plate fixedly connected to the middle of the lower shell wall of the main device through the mounting groove. The number of ultraviolet disinfection lamp beads can disinfect and sterilize the air, effectively killing viruses and other microorganisms in the air.
[0018] 4. In this utility model, several blades on the inner wall of the outer shell, inclined downwards at a 20-degree angle and distributed longitudinally at equal intervals, located directly in front of the medical antibacterial cloth layer, can initially guide the external airflow, allowing the air to enter the filtration device more evenly and improving the air intake effect. The exhaust groove in the middle of the upper part of the purification device shell has an opening direction consistent with the tilting direction of the blades, which is conducive to the smooth discharge of purified air, promotes the comprehensive circulation of indoor air, reduces purification dead corners, improves the purification effect, reduces the dependence of the purification effect on the spatial layout, and achieves efficient purification of the entire indoor space. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the overall structure of a high-efficiency formaldehyde purification device for indoor air pollution control according to this utility model.
[0020] Figure 2 This is a schematic diagram of the main structure of a high-efficiency formaldehyde purification device for indoor air pollution control according to this utility model.
[0021] Figure 3 This is an exploded structural diagram of the filter device of a high-efficiency formaldehyde purification device for indoor air pollution control according to this utility model.
[0022] Figure 4 This is a schematic diagram of the combined structure of the filter device, main body device and outer shell of a high-efficiency formaldehyde purification device for indoor air pollution control according to this utility model.
[0023] In the diagram: 1. Outer shell; 2. Main body; 3. Fixing bolts; 4. Foot pads; 5. Blades; 6. Filter device; 21. Purification equipment housing; 22. Exhaust duct; 23. Slot; 24. Intelligent control board; 25. Mounting ear plate; 26. Fan housing; 27. Exhaust fan; 28. Heating module; 29. Lamp board; 210. Ultraviolet disinfection lamp beads; 211. Temperature sensor; 212. Mounting slot; 61. Card frame; 62. Slot; 63. Insertion plate frame; 64. Medical antibacterial cloth layer; 65. Graphene layer; 66. H13 filter layer; 67. Activated carbon adsorption layer. Detailed Implementation
[0024] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.
[0025] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," 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 this utility model and 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 this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0026] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0027] Please see Figure 1-4 This utility model provides a technical solution:
[0028] A highly efficient formaldehyde purification device for indoor air pollution control includes an outer shell 1 and fixing bolts 3. The outer shell 1 is mounted with a main body device 2 by four fixing bolts 3. The four corners of the lower end of the main body device 2 are fixedly connected with pads 4. A filter device 6 is slidably installed at the front end of the main body device 2. Several blades 5 are fixedly installed on the inner wall of the outer shell 1.
[0029] Several blades 5 are tilted downward at an angle of 20 degrees, several blades 5 are distributed longitudinally at equal intervals, and several blades 5 are located directly in front of the medical antibacterial cloth layer 64.
[0030] In this embodiment, the main device 2 includes a purification equipment housing 21. A mounting groove 212 is formed in the middle of the rear shell wall of the purification equipment housing 21. A fan housing 26 is fixedly installed in the mounting groove 212. Mounting ear plates 25 are fixedly installed around the outer perimeter of the fan housing 26. A suction fan 27 is inserted through the middle of the rear end of the fan housing 26. Heating modules 28 are provided around the rear wall of the mounting groove 212. A lamp plate 29 is fixedly connected to the middle of the lower shell wall of the mounting groove 212. Several ultraviolet disinfection lamp beads 210 are fixedly installed on the surface of the lamp plate 29. Four slots 23 are formed in pairs on the left and right shell walls of the purification equipment housing 21. A temperature sensor 211 is provided at the lower part of the rear shell wall of the purification equipment housing 21. The upper end of the purification equipment housing 21 is provided with an exhaust groove 22. The front upper part of the purification equipment housing 21 is provided with a smart control board 24. The purification equipment housing 21 is located directly behind the outer shell plate 1. Several ultraviolet disinfection lamp beads 210 are distributed in a long rectangle at equal intervals. The suction fan 27 is located directly behind the activated carbon adsorption layer 67. Four heating modules 28 are located around the outer perimeter of the suction fan 27. The exhaust groove 22 is opened in the middle of the upper end of the purification equipment housing 21 and is connected to the inside of the purification equipment housing 21. The temperature sensor 211 is located on the lower part of the rear shell wall of the purification equipment housing 21 near the edge, and its sensing end faces the inside of the purification equipment housing 21. The opening direction of the exhaust groove 22 is consistent with the tilt direction of the blade 5.
[0031] Through the above scheme: the purification equipment housing 21 of the main device 2 plays a key role. Located directly behind the outer shell plate 1, the purification equipment housing 21 has a fan housing 26 fixed in the mounting groove 212 in the middle of the rear shell wall. The fan housing 26 is securely installed by the mounting lugs 25 around its perimeter. The suction fan 27 inserted in the middle of the rear end of the fan housing 26 is responsible for drawing in air. The activated carbon adsorption layer 67 behind it can adsorb pollutants. The four heating modules 28 on the outer perimeter can heat the activated carbon to restore its adsorption activity when it is saturated. Several ultraviolet disinfection lamp beads 210 are distributed in a long rectangle at equal intervals on the lamp plate 29 in the middle of the lower shell wall of the mounting groove 212, which can disinfect and sterilize the air. The lower part of the rear shell wall of the purification equipment housing 21 near the edge The temperature sensor 211, positioned with its sensing end facing inward, can monitor the temperature inside the device in real time, providing a basis for regulation. The exhaust chute 22 in the middle of the upper part of the purification equipment housing 21 is connected to the interior, and its opening direction is consistent with the tilt direction of the blades 5, which facilitates the smooth discharge of purified air. The intelligent control board 24 at the upper front of the purification equipment housing 21 facilitates user operation and control of the equipment. The suction fan 27 starts to draw in indoor air, which is first purified by subsequent filtration devices. Inside the device, the heating module 28 works in a timely manner to ensure the continuous effectiveness of activated carbon, and the ultraviolet disinfection lamp 210 disinfects the air simultaneously. The temperature sensor 211 monitors the temperature to ensure stable operation of the equipment. Finally, the purified air is discharged through the exhaust chute 22.
[0032] In this embodiment, the filter device 6 includes a card frame 61. The upper end of the card frame 61 has four slots 62. Insertion plate frames 63 are inserted into the four slots 62. The inner frame walls of the four insertion plate frames 63 are respectively provided with a medical antibacterial cloth layer 64, a graphene layer 65, an H13 filter layer 66, and an activated carbon adsorption layer 67 from front to back. The card frame 61 is snapped onto the front part of the inner shell wall of the purification equipment housing 21. The width of the card frame 61 is equal to the width of the front part of the inner shell wall of the purification equipment housing 21. The dimensions of the medical antibacterial cloth layer 64, the graphene layer 65, the H13 filter layer 66, and the activated carbon adsorption layer 67 are completely adapted to the dimensions of the inner frame wall of the insertion plate frame 63 and are tightly fitted to the inner frame wall of the insertion plate frame 63. The insertion plate frame 63 and the slots 62 are connected by a detachable interference fit.
[0033] Through the above scheme: when the suction fan 27 draws indoor air into the main unit 2, the air first comes into contact with the medical antibacterial cloth layer 64 of the filter device 6. This layer initially intercepts bacteria and other microorganisms in the air. Next, the air passes through the graphene layer 65, where the properties of graphene further adsorb and decompose some pollutants. Subsequently, the H13 filter layer 66, with its highly efficient filtration performance, blocks tiny particles in the air. Finally, the activated carbon adsorption layer 67 exerts a powerful adsorption effect, adsorbing residual formaldehyde and other harmful gases in the air, completing the comprehensive purification of the air. This layered and tightly coordinated filtration structure design greatly improves air purification. In terms of precision and effectiveness, the medical antibacterial cloth layer 64 effectively reduces the content of microorganisms in the air, lowering the risk of germ transmission. The graphene layer 65 enhances the ability to decompose pollutants. The H13 filter layer 66 ensures efficient filtration of fine particles, making the output air cleaner. The activated carbon adsorption layer 67 continuously adsorbs harmful gases, ensuring fresh indoor air. At the same time, the detachable interference fit between the insert frame 63 and the slot 62 allows users to easily disassemble and replace each filter layer after a period of use, ensuring that the filter device 6 is always in good working condition, extending the service life of the entire purification device, and providing a higher quality and healthier indoor air environment.
[0034] It should be noted that this utility model is a high-efficiency formaldehyde purification device for indoor air pollution control. The main body device 2, which is installed on the outer shell 1 by four fixing bolts 3, plays a core role. In the main body device 2, the suction fan 27 is installed in the middle of the rear end of the fan shell 26. The fan shell 26 is fixed in the mounting groove 212 in the middle of the rear shell wall of the purification equipment shell 21. The heating module 28 around the rear wall of the mounting groove 212 can heat the internal air. When the activated carbon adsorption layer 67 is saturated, the heating module 28 starts heating, so that the activated carbon can play its adsorption role again. Several ultraviolet disinfection lamp beads 210 with long rectangles and equal spacing on the lamp plate 29 in the middle of the lower shell wall of the mounting groove 212 can disinfect the air. The temperature sensor 211 is set in the lower part of the rear shell wall of the purification equipment shell 21 near the edge, and its sensing end Facing inward, the internal temperature can be monitored in real time. After the external air is initially guided by several blades 5 that are inclined downward at a 20-degree angle and are evenly distributed longitudinally and located directly in front of the medical antibacterial cloth layer 64 on the inner wall of the outer shell 1, it enters the filter device 6 that is slidably installed at the front of the main device 2. The frame 61 of the filter device 6 is snapped into the front part of the inner shell wall of the purification equipment housing 21. The insert plate frame 63 is inserted into the four slots 62 at the upper end of the frame 61. The frame wall is arranged from front to back with the medical antibacterial cloth layer 64, graphene layer 65, H13 filter layer 66 and activated carbon adsorption layer 67, which will sequentially perform antibacterial, adsorption and other purification treatments on the air. The purified air is discharged through the exhaust groove 22 at the upper middle part of the purification equipment housing 21 with the opening direction consistent with the inclination direction of the blades 5, thus completing the entire indoor air pollution treatment process.
[0035] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A high-efficiency formaldehyde purification device for indoor air pollution control, comprising an outer shell plate (1) and fixing bolts (3), characterized in that: The outer shell plate (1) is mounted with the main body device (2) by four fixing bolts (3). The four corners of the lower end of the main body device (2) are fixedly connected with pads (4). The front end of the main body device (2) is slidably mounted with a filter device (6). Several blades (5) are fixedly mounted on the inner wall of the outer shell plate (1). The main device (2) includes a purification equipment housing (21). A mounting groove (212) is provided in the middle of the rear shell wall of the purification equipment housing (21). A fan housing (26) is fixedly installed in the mounting groove (212). Mounting lugs (25) are fixedly installed on all four sides of the outer side of the fan housing (26). A suction fan (27) is inserted through the middle of the rear end of the fan housing (26). Heating modules (28) are provided on all four sides of the rear wall of the mounting groove (212). A lamp plate (29) is fixedly connected to the middle of the lower shell wall of the mounting groove (212). The surface of the lamp plate (29) is fixedly equipped with several ultraviolet disinfection lamp beads (210). The left and right shell walls of the purification equipment housing (21) are provided with four slots (23). The slots (23) are arranged in pairs. A temperature sensor (211) is provided at the lower part of the rear shell wall of the purification equipment housing (21). An exhaust groove (22) is provided at the upper end of the purification equipment housing (21). A smart control board (24) is provided at the upper front end of the purification equipment housing (21). The purification equipment housing (21) is located directly behind the outer shell plate (1).
2. The high-efficiency formaldehyde purification device for indoor air pollution control according to claim 1, characterized in that: The filter device (6) includes a card frame (61), and four slots (62) are provided at the upper end of the card frame (61). Insertion plate frames (63) are inserted into the four slots (62). The inner frame walls of the four insertion plate frames (63) are respectively provided with a medical antibacterial cloth layer (64), a graphene layer (65), an H13 filter layer (66) and an activated carbon adsorption layer (67) from front to back. The card frame (61) is snapped into the front part of the inner shell wall of the purification equipment housing (21).
3. The high-efficiency formaldehyde purification device for indoor air pollution control according to claim 1, characterized in that: Several ultraviolet disinfection lamp beads (210) are distributed in a long rectangle at equal intervals. The suction fan (27) is located directly behind the activated carbon adsorption layer (67). The four heating modules (28) are located around the outside of the suction fan (27).
4. The high-efficiency formaldehyde purification device for indoor air pollution control according to claim 1, characterized in that: Several blades (5) are tilted downward at an angle of 20 degrees, several blades (5) are distributed longitudinally at equal intervals, and several blades (5) are located directly in front of the medical antibacterial cloth layer (64).
5. The high-efficiency formaldehyde purification device for indoor air pollution control according to claim 1, characterized in that: The exhaust groove (22) is located at the middle of the upper end of the purification equipment housing (21), and the exhaust groove (22) is connected to the inside of the purification equipment housing (21). The temperature sensor (211) is located at the lower part of the rear shell wall of the purification equipment housing (21) near the edge, and its sensing end faces the inside of the purification equipment housing (21).
6. The high-efficiency formaldehyde purification device for indoor air pollution control according to claim 2, characterized in that: The width of the card frame (61) is equal to the width of the front part of the inner shell wall of the purification equipment housing (21). The dimensions of the medical antibacterial cloth layer (64), graphene layer (65), H13 filter layer (66) and activated carbon adsorption layer (67) are completely adapted to the inner frame wall dimensions of the insert frame (63) and are installed in close contact with the inner frame wall of the insert frame (63). The insert frame (63) and the slot (62) are connected by a detachable interference fit.
7. The high-efficiency formaldehyde purification device for indoor air pollution control according to claim 1, characterized in that: The opening direction of the exhaust groove (22) is consistent with the tilting direction of the blade (5).