Air purification device for removing TVOC pollutants

By using a movable base and removable filter holder in the air purifier, combined with zeolite, HEPA filters and activated carbon filter plates, the problem of air purifier clogging due to solid particles is solved, achieving comprehensive removal of TVOC pollutants and particulate matter, and improving purification efficiency.

CN224261897UActive Publication Date: 2026-05-19NINGBO JUNXIN ENVIRONMENTAL PROTECTION TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NINGBO JUNXIN ENVIRONMENTAL PROTECTION TECHNOLOGY CO LTD
Filing Date
2025-07-16
Publication Date
2026-05-19

AI Technical Summary

Technical Problem

Existing air purifiers are prone to clogging of filter channels by solid particles when dealing with TVOC pollutants, which affects purification efficiency and makes it difficult to achieve adaptive indoor air purification.

Method used

This air purifier features a movable base and a built-in movable filter housing, including a zeolite chamber, HEPA filter array, and activated carbon filter group. Combined with UV disinfection, it can move autonomously and purify indoor air from all angles, adsorbing and decomposing TVOC pollutants.

Benefits of technology

It improves indoor air purification efficiency, effectively removing TVOC pollutants and particulate matter from all directions, and maintaining the high-efficiency operation of the purification device.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the field of air purifiers, and discloses an air purification device for removing TVOC pollutants, which comprises a movable base, a support housing and a filter frame, the support housing is arranged on the movable base, a cavity is arranged at the upper end of the support housing, the filter frame is arranged in the cavity, the filter frame comprises a cylinder, and the cylinder is arranged in the cavity. A zeolite bin is arranged at the bottom end of an inner cavity of the cylinder, an HEPA filter screen set is arranged above the zeolite bin, and an activated carbon filter plate group is arranged above the HEPA filter screen set. According to the utility model, the movable base is used as a mounting device for the supporting housing, the filtering frame which can be movably connected is arranged in the supporting housing, and TVOC pollutants and solid particles in the air are removed through a plurality of groups of adsorption and filtering devices, so that the indoor air is purified; the air purification device can autonomously move in the whole indoor area through the movable base, and the air purification efficiency is improved in all directions.
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Description

Technical Field

[0001] This utility model relates to the field of air purifier technology, and more specifically, to an air purification device for removing TVOC pollutants. Background Technology

[0002] When decorating or furnishing a house, the building materials and furniture can bring a large amount of TVOC pollutants into the room, negatively impacting human health. When using an air purifier to purify the air, the drawn-in airflow carries solid particles such as dust into the purifier, clogging its internal filter channels and affecting purification efficiency. Most existing air purification devices are designed with either fixed placement or manual relocation, requiring manual adjustment of their operating position and status, making it difficult to achieve an adaptive processing mode for indoor air purification. Therefore, this paper proposes an air purification device for removing TVOC pollutants. Utility Model Content

[0003] (a) Technical problems to be solved

[0004] To address at least one of the aforementioned problems, this invention provides an air purification device for removing TVOC pollutants, which can remove particulate and gaseous pollutants from indoor air and improve the efficiency of indoor air purification.

[0005] (II) Technical Solution

[0006] To solve the aforementioned technical problem, this utility model provides an air purification device for removing TVOC pollutants, including a movable base, a supporting cover, and a filter frame. The supporting cover is mounted on the movable base and has a cavity at its upper end. The filter frame is disposed within the cavity and includes a cylindrical tube. A zeolite chamber is located at the bottom of the inner cavity of the cylindrical tube, a HEPA filter array is located above the zeolite chamber, and an activated carbon filter array is located above the HEPA filter array. A disinfection chamber is located at the top of the inner cavity of the cylindrical tube, and an annular air outlet groove is located in the middle section of the cylindrical tube within the disinfection chamber. An air inlet hood is located at the bottom of the cavity of the supporting cover, and a fan is located inside the air inlet hood. A brushless motor is located at the bottom of the fan and is electrically connected to a control terminal. During operation, the control terminal adjusts the rotation of the fan to draw indoor air into the filter frame. The TVOC pollutants carried in the air are adsorbed within the filter frame, and the purified air is discharged through the annular air outlet groove.

[0007] Furthermore, multiple sets of air outlet nets are evenly provided at the outer top of the support cover, and the air outlet nets are positioned close to the annular air outlet groove.

[0008] Furthermore, the filter frame is configured as a pull-out connector, and the top of the filter frame is provided with a pull-out handle.

[0009] Furthermore, the inner wall of the air inlet hood is provided with an annular slot, and the bottom of the cylindrical tube is provided with a plug ring. During installation, the plug ring is inserted into the annular slot, and a filter screen is provided on the plug ring.

[0010] Furthermore, the inner wall of the disinfection chamber is provided with two sets of insulating mounting bases, and an ultraviolet lamp is provided between the two sets of insulating mounting bases.

[0011] Furthermore, a control compartment is connected to the bottom of the air inlet hood, the control terminal is located inside the control compartment, a storage battery is provided at the bottom of the control terminal, and the control terminal is electrically connected to the ultraviolet lamp.

[0012] Furthermore, the bottom of the support cover is provided with an anti-detachment base, which is embedded in the movable base and welded to the movable base.

[0013] Furthermore, the HEPA filter assembly includes two sets of HEPA filters, with the lower HEPA filter disposed in the first connector and the upper HEPA filter disposed in the second connector.

[0014] Furthermore, the activated carbon filter plate group includes several sets of corrugated activated carbon plates, each set of corrugated activated carbon plates being placed in an independent plug-in frame.

[0015] Furthermore, the mobile base is provided with guide wheels at the bottom front end, and a set of steering wheels is provided on both sides of the guide wheels. The steering wheels are respectively connected to a set of drive motors. The mobile base is provided with an obstacle avoidance sensing end at the front end, and a sensing radar is provided inside the obstacle avoidance sensing end.

[0016] (III) Beneficial Effects

[0017] This invention provides an air purification device for removing TVOC pollutants. It uses a movable base as a mounting device for a supporting housing, and a movable filter frame is installed inside the housing to purify indoor air. The filter frame utilizes the excellent adsorption properties of zeolite to quickly adsorb a certain amount of polluting gases. Subsequently, a HEPA filter array adsorbs tiny particles in the airflow. A corrugated activated carbon plate effectively increases the contact area between the activated carbon and the air, improving adsorption efficiency. Finally, ultraviolet light catalytic decomposition thoroughly removes air pollutants. This air purification device can move autonomously throughout the entire indoor area via the movable base, comprehensively removing TVOC pollutants and particulate pollutants from indoor air, thus improving air purification efficiency. Attached Figure Description

[0018] Figure 1 This is a front view of the air purification device according to an embodiment of the present utility model;

[0019] Figure 2 This is a schematic diagram of the air purification device according to an embodiment of the present invention;

[0020] Figure 3 for Figure 2 A sectional view along line AA of the support housing and its components;

[0021] Figure 4 This is a front view of the bottom of the movable base according to an embodiment of the present utility model;

[0022] Figure 5 This is a schematic diagram of the assembly of the HEPA filter according to an embodiment of the present invention.

[0023] Explanation of reference numerals in the attached figures:

[0024] 1 is the mobile base, 2 is the steering wheel, 3 is the guide wheel, 4 is the obstacle avoidance sensor, 5 is the support cover, 6 is the control chamber, 7 is the air inlet cover, 8 is the air outlet screen, 9 is the filter frame, 10 is the pull handle, 11 is the plug ring, 12 is the annular slot, 13 is the filter screen, 14 is the zeolite chamber, 15 is the HEPA filter assembly, 16 is the activated carbon filter plate group, 17 is the insulating mounting base, 18 is the ultraviolet lamp, 19 is the disinfection chamber, 20 is the annular air outlet groove, 21 is the control terminal, 22 is the brushless motor, 23 is the fan, 24 is the battery, and 25 is the anti-detachment base. Detailed Implementation

[0025] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0026] The accompanying drawings of the embodiments of this utility model provide a coordinate system XYZ, where the positive direction of the X-axis represents the left and the negative direction of the X-axis represents the right, the positive direction of the Y-axis represents the front and the negative direction of the Y-axis represents the back, the positive direction of the Z-axis represents the top and the negative direction of the Z-axis represents the bottom.

[0027] See Figures 1 to 5This utility model provides an air purification device for removing TVOC pollutants, including a movable base 1, a support cover 5, and a filter frame 9. The support cover 5 is mounted on the movable base 1 and has a cavity at its upper end. The filter frame 9 is mounted inside the cavity and includes a cylindrical tube. A zeolite chamber 14 is located at the bottom of the inner cavity of the cylindrical tube. A HEPA filter array 15 is located above the zeolite chamber 14, and an activated carbon filter array 16 is located above the HEPA filter array 15. A disinfection chamber 19 is located at the top of the inner cavity of the cylindrical tube. An annular air outlet groove 20 is located in the middle section of the disinfection chamber 19. An air inlet hood 7 is located at the bottom of the cavity of the support cover 5. A fan 23 is located inside the air inlet hood 7, and a brushless motor 22 is located at the bottom of the fan 23. The brushless motor 22 is electrically connected to a control terminal 21. During operation, the control terminal 21 adjusts the rotation of the fan 23 to draw indoor air into the filter frame 9. The TVOC pollutants carried in the air are adsorbed into the filter frame 9, and the purified air is discharged through the annular air outlet groove 20.

[0028] This solution uses a mobile base 1 as the support and movement device for the air purification unit. Since TVOC pollutants are heavier than air, they will settle in lower areas of the room after seeping from furniture or decoration materials. This allows the entire unit to be moved within the room, flexibly purifying air from various locations and improving the removal efficiency of indoor pollutants. The support casing 5 is fixedly mounted on the mobile base 1, internally defining the filter frame 9. The control unit 21 drives the fan 23 to rotate at a constant speed via a brushless motor 22, drawing the settled air into the air inlet hood 7. Air then enters the filter frame 9, and the zeolite chamber 14 is... The drawer is designed with a grid pattern and is lined with multiple layers of uniformly textured zeolite. The physical properties of zeolite allow it to quickly adsorb pollutants in the air, rapidly reducing TVOC levels. After the first adsorption, the air passes through a HEPA filter assembly 15 to adsorb fine solid particles, improving the removal of dust that is difficult to clean from indoor air. The air then enters an activated carbon filter assembly 16, where activated carbon adsorbs and almost completely removes TVOC pollutants. Finally, the adsorbed air enters a disinfection chamber 19, where it is disinfected to remove any remaining TVOC pollutants before being discharged. This process significantly improves the efficiency of removing TVOC pollutants from indoor air.

[0029] See Figure 1 and Figure 2 Multiple sets of air outlet nets 8 are evenly provided on the outer top of the support cover 5. The air outlet nets 8 are positioned close to the annular air outlet groove 20. The multiple sets of air outlet nets 8 can reduce the sharpness of the top of the support cover 5 and reduce the collision damage caused by the air purification equipment to other equipment or people. The air outlet nets 8 are positioned close to the annular air outlet groove 20 so that the filtered air can be directly discharged into the room, forming a complete airflow control channel.

[0030] The filter holder 9 is designed as a pull-out connector. The top of the filter holder 9 is equipped with a pull-out handle 10. The filter holder 9 can be controlled by pulling out the handle 10, and the filter holder 9 can be pulled out from the support cover 5 to replace the zeolite, HEPA filter or corrugated activated carbon plate in its inner cavity, so that the air purification device always maintains a high-efficiency filtration state.

[0031] See Figure 3 The inner wall of the air inlet hood 7 is provided with an annular slot 12, and the bottom of the cylindrical tube is provided with a plug-in ring 11. During installation, the plug-in ring 11 is inserted into the annular slot 12, and the inner wall of the air inlet hood 7 establishes support for the entire filter frame 9 through the annular slot 12 and the plug-in ring 11. For the filter frame 9 that has been replaced and put back into use, it can be directly inserted into the support cover 5 to restore the installation state and put it back into use. The plug-in ring 11 is provided with a filter screen 13. The filter screen 13 can initially remove large particulate matter carried by the gas drawn in by the fan 23 and reduce the solid pollutants carried in the gas. The filter screen 13 can be repeatedly cleaned and used when the filter frame 9 is removed from the support cover 5.

[0032] The inner wall of the disinfection chamber 19 is provided with two sets of insulating mounting bases 17, and an ultraviolet lamp 18 is provided between the two sets of insulating mounting bases 17. The inner wall of the disinfection chamber 19 is fixed to the installation of the two ends of the ultraviolet lamp 18 by the two sets of insulating mounting bases 17. The ultraviolet lamp 18 is placed in the disinfection chamber 19 and can perform the final catalytic decomposition treatment on the air, change the chemical properties of TVOC pollutants to make them harmless, and treat the very small amount of pollutants that are not adsorbed, so as to ensure the purification quality.

[0033] The bottom of the air inlet hood 7 is connected to a control chamber 6. The control terminal 21 is located inside the control chamber 6. A storage battery 24 is located at the bottom of the control terminal 21. The control terminal 21 is electrically connected to the ultraviolet lamp 18. The control terminal 21 controls the specific operating parameters of the ultraviolet lamp 18 and adjusts the ultraviolet lamp 18 to complete the disinfection and catalytic treatment. The control chamber 6 is located at the middle and lower end of the purification device. It can establish direct control of the brushless motor 22 and establish direct connection with the mobile drive device to adjust the purification device to adapt to the purification treatment of indoor air. The storage battery 24 provides energy for the normal operation of the entire purification device. A charging port is provided at the rear end of the control chamber 6 to replenish the power of the storage battery 24.

[0034] The bottom of the support cover 5 is provided with an anti-detachment base 25. The anti-detachment base 25 is embedded in the movable base 1 and welded to the movable base 1, which can enhance the firmness of the connection between the movable base 1 and the support cover 5. During the movement of the purification device, the movable base 1 and the support cover 5 work together to support and limit the filter frame 9, ensuring the stability of the purification device.

[0035] See Figure 5The HEPA filter assembly 15 includes two HEPA filters. The lower HEPA filter is installed in the first insertion end, and the upper HEPA filter is installed in the second insertion end. The two HEPA filters and their insertion ends have the same structure and specifications. The cylindrical tube has two insertion slots above the zeolite chamber 14. The lower HEPA filter is inserted into the lower insertion slot through the first insertion end, and the upper HEPA filter is inserted into the upper insertion slot through the second insertion end, thus completing the installation of the two HEPA filters. If the two HEPA filters need to be replaced, they can be removed from the two insertion slots respectively for cleaning and replacement, or new HEPA filters can be directly installed.

[0036] The activated carbon filter plate group 16 includes several sets of corrugated activated carbon plates. Each set of corrugated activated carbon plates is placed in an independent insertion frame. The insertion frame has the same structure as the insertion end mentioned above. That is, the structure and specifications of each set of insertion slots on the cylindrical tube are the same, which can simplify the production process of the cylindrical tube and reduce its production difficulty. The insertion frames with corrugated activated carbon plates are inserted into the cylindrical tube in sequence to assemble the activated carbon filter plate group 16. After the purification device has been used for a long time, the insertion frame can be removed, the corrugated activated carbon plates inside can be taken out, and new corrugated activated carbon plates can be replaced. The insertion frame can then be reinstalled into the cylindrical tube.

[0037] See Figure 1 and Figure 4 The mobile base 1 has a guide wheel 3 at its bottom front end. The mobile base 1 has a set of steering wheels 2 on both sides of the guide wheel 3. The steering wheels 2 are connected to a set of drive motors. The front end of the mobile base 1 has an obstacle avoidance sensor 4. The mobile base 1 has a sensor radar inside the obstacle avoidance sensor 4. The mobile base 1 has a control and drive circuit that is electrically connected to the control terminal 21. The two sets of steering wheels 2 are each equipped with an independent drive motor. The control terminal 21 controls the rotation of the drive motors. In conjunction with the guide wheel 3, the mobile base 1 can achieve uniform speed and turning operation. When the sensor radar detects an obstacle, it can drive the purification device to avoid the obstacle and complete the purification treatment in various parts of the room.

[0038] The air purification device for removing TVOC pollutants provided by this utility model uses a movable base 1 as the main support device, which can move the purification device freely in various parts of the room. It uses multiple adsorption devices inside to fully remove TVOC pollutants carried in the indoor air and can also help remove free particulate matter in the air, thereby improving the quality and efficiency of indoor air purification. This solution can achieve multiple uses with one machine, eliminating the need for multiple purification devices in the room, and effectively saving operating costs.

[0039] Although the disclosure is as stated above, the scope of protection of this disclosure is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of this disclosure, and all such changes and modifications will fall within the protection scope of this utility model.

Claims

1. An air purification device for removing TVOC pollutants, characterized in that, The device includes a movable base (1), a support cover (5), and a filter frame (9). The support cover (5) is mounted on the movable base (1). The upper end of the support cover (5) has a cavity. The filter frame (9) is disposed in the cavity. The filter frame (9) includes a cylindrical tube. A zeolite chamber (14) is provided at the bottom of the inner cavity of the cylindrical tube. A HEPA filter array (15) is provided above the zeolite chamber (14). An activated carbon filter plate group (16) is provided above the HEPA filter array (15). A disinfection chamber (19) is provided at the top of the inner cavity of the cylindrical tube. The cylindrical tube is used for disinfection. The middle section of the toxic chamber (19) is provided with an annular air outlet groove (20). The support cover (5) is provided with an air inlet hood (7) at the bottom of the cavity. A fan (23) is provided inside the air inlet hood (7). A brushless motor (22) is provided at the bottom of the fan (23). The brushless motor (22) is electrically connected to the control terminal (21). When working, the control terminal (21) adjusts the fan (23) to rotate, drawing indoor air into the filter frame (9). The TVOC pollutant gas carried in the air is adsorbed in the filter frame (9), and the purified air is discharged from the annular air outlet groove (20).

2. The air purification device for removing TVOC pollutants according to claim 1, characterized in that, The top outer end of the support cover (5) is uniformly provided with multiple sets of air outlet nets (8), and the air outlet nets (8) are set close to the annular air outlet groove (20).

3. The air purification device for removing TVOC pollutants according to claim 1, characterized in that, The filter frame (9) is designed as a pull-out connector, and the top of the filter frame (9) is provided with a pull-out handle (10).

4. An air purification device for removing TVOC pollutants according to claim 1, characterized in that, The inner wall of the air inlet hood (7) is provided with an annular slot (12), and the bottom of the cylindrical tube is provided with a plug ring (11). During installation, the plug ring (11) is inserted into the annular slot (12), and a filter screen (13) is provided on the plug ring (11).

5. An air purification device for removing TVOC pollutants according to claim 1, characterized in that, The inner wall of the disinfection chamber (19) is provided with two sets of insulating mounting seats (17), and an ultraviolet lamp (18) is provided between the two sets of insulating mounting seats (17).

6. An air purification device for removing TVOC pollutants according to claim 5, characterized in that, The bottom of the air inlet hood (7) is connected to a control compartment (6), and the control terminal (21) is located inside the control compartment (6). The bottom of the control terminal (21) is provided with a storage battery (24), and the control terminal (21) is electrically connected to the ultraviolet lamp (18).

7. An air purification device for removing TVOC pollutants according to claim 1, characterized in that, The bottom of the support cover (5) is provided with an anti-detachment base (25), which is embedded in the movable base (1) and welded to the movable base (1).

8. An air purification device for removing TVOC pollutants according to claim 1, characterized in that, The HEPA filter assembly (15) includes two sets of HEPA filters, with the lower HEPA filter disposed in the first insertion end and the upper HEPA filter disposed in the second insertion end.

9. An air purification device for removing TVOC pollutants according to claim 1, characterized in that, The activated carbon filter plate group (16) includes several groups of corrugated activated carbon plates, each group of corrugated activated carbon plates is placed in an independent plug-in frame.

10. An air purification device for removing TVOC pollutants according to claim 1, characterized in that, The mobile base (1) has a guide wheel (3) at the bottom front end. The mobile base (1) has a set of steering wheels (2) on both sides of the guide wheel (3). The steering wheels (2) are connected to a set of drive motors. The mobile base (1) has an obstacle avoidance sensing end (4) at the front end. The mobile base (1) has a sensing radar inside the obstacle avoidance sensing end (4).