Low-power-consumption plasma self-cleaning disinfection and sterilization air purification device

The self-cleaning frame and magnetic slot design solve the problems of inconvenient filter cleaning and installation in plasma air purifiers, achieving low-power, high-efficiency air purification and convenient installation.

CN223537762UActive Publication Date: 2025-11-11THE FIRST AFFILIATED HOSPITAL OF NAVAL MEDICAL UNIVERSITY OF CHINESE PEOPLES LIBERATION ARMY
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Patent Information

Application Number
CN202522108461.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-09-30
Publication Date
2025-11-11
Estimated Expiration
2035-09-30

AI Technical Summary

Technical Problem

Existing plasma air purifiers suffer from inconvenient dust filter cleaning and installation, which affects their air purification performance.

Method used

Featuring a self-cleaning frame design, it utilizes a miniature air pump to draw air and filter it through a dust filter. Combined with a magnetic slot and angle adjustment hole, it achieves convenient installation, reduces power consumption, and maintains high-efficiency purification.

Benefits of technology

It achieves efficient air purification with low power consumption, and the self-cleaning function simplifies filter maintenance and facilitates device installation, thereby improving the air purification effect.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a low power consumption plasma self-cleaning disinfection sterilization air purification device, which relates to the technical field of air purification devices and comprises a device bottom shell, an outer edge frame is integrally formed on the outer wall of the device bottom shell, and a base plate is arranged below the outer edge frame. Two clamping shaft seats are integrally formed at the lower end of the base plate, and an inner rotating cylinder is arranged between the two clamping shaft seats; the plasma air purification device comprises a device bottom shell and further comprises two emitter arrays which are arranged in the device bottom shell, a plasma excitation power source is fixedly arranged at the bottom of an outer edge frame through screws, and the problems that in the practical process of an existing plasma air purification device, the interior is kept clean through an arranged dust removal filter screen, and the service life of the existing plasma air purification device is prolonged are solved. However, the filter screen structure is inconvenient to clean subsequently, and the air purification device is inconvenient to install in the using process, so that the air purification effect is affected.
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Description

Technical Field

[0001] This utility model relates to the field of air purification device technology, specifically a low-power plasma self-cleaning disinfection and sterilization air purification device. Background Technology

[0002] Plasma air purifiers are devices that use low-temperature plasma technology to treat air pollutants. They decompose harmful substances by ionizing air to generate high-energy particles. They are mainly used for industrial waste gas treatment and indoor air purification.

[0003] For example, announcement number CN212511686U (named "A Plasma Sterilization and Disinfection Air Purifier") includes a housing, an air inlet and an air outlet on the housing, and a fan inside the housing. The air purifier also includes a dust removal device, an air purification device, a plasma sterilization and disinfection device, and a control panel. The dust removal device, air purification device, and plasma sterilization and disinfection device are respectively connected to the control panel. The air inlet is connected to the dust removal device, the dust removal device is connected to the air purification device, the air purification device is connected to the plasma sterilization and disinfection device, and the plasma sterilization and disinfection device is connected to the air outlet. The dust removal device includes a movable plate, a dust collection box, and a dust filter. The movable plate includes a first baffle inside the air inlet and a second baffle above the dust collection box. The dust filter is located inside the first baffle, and the dust collection box is located below the dust filter. This allows for automatic dust removal, keeping the filter clean and reducing operating costs. It can generate high-concentration plasma in an ultra-thin space with sufficient reaction time, resulting in high sterilization and disinfection efficiency.

[0004] The aforementioned plasma air purifier maintains internal cleanliness through its dust filter during practical use. However, the filter structure is inconvenient to clean, and the air purifier is also inconvenient to install, which affects the air purification effect. Therefore, we provide a low-power plasma self-cleaning disinfection and sterilization air purifier. Utility Model Content

[0005] The purpose of this invention is to provide a low-power plasma self-cleaning disinfection and sterilization air purification device to solve the problem mentioned in the background art that existing plasma air purification devices maintain internal cleanliness through a dust removal filter during use, but the filter structure is inconvenient to clean and the air purification device is inconvenient to install, which affects the air purification effect.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a low-power plasma self-cleaning disinfection and sterilization air purification device, including a device bottom shell, an outer edge frame integrally formed on the outer wall of the device bottom shell, a base plate provided below the outer edge frame, two locking shaft seats integrally formed at the lower end of the base plate, and an inner rotating cylinder provided between the two locking shaft seats.

[0007] Also includes:

[0008] An emitter array is disposed inside the bottom shell of the device. There are two emitter arrays, and a plasma excitation power supply is fixed to the bottom of the outer frame by screws. A power supply connection is provided between the output end of the plasma excitation power supply and the input end of the two emitter arrays.

[0009] The self-cleaning frame is located inside the bottom shell of the device and between the two emitter arrays. A top cover plate is fixed to the top of the self-cleaning frame by screws. Three exhaust channels are provided at one end of the self-cleaning frame. The three exhaust channels are connected to the interior of the self-cleaning frame. A dust filter screen is provided inside each of the three exhaust channels.

[0010] A miniature air pump is installed inside the self-cleaning frame. A sleeve cylinder is movably installed at the upper limit of the air inlet end of the miniature air pump. An air extraction pipe is integrally formed on the outer wall of the sleeve cylinder. Both the air extraction pipe and the sleeve cylinder are connected to the air inlet end of the miniature air pump. An exhaust pipe is installed on the air outlet end of the miniature air pump.

[0011] The connecting shaft is integrally formed on both outer walls of the inner rotating cylinder, and a bearing groove is provided at the rotational connection position between the shaft holder and the connecting shaft. The bearing groove and the shaft holder are integral structures, and an angle adjustment hole is provided inside the shaft holder.

[0012] Preferably, a magnetic slot is provided on one side of the connecting shaft, and the two magnetic slots are integrated with the inner rotating cylinder. A positioning pin is magnetically installed inside one magnetic slot and one angle adjustment hole.

[0013] Preferably, one end of the bottom shell of the device is provided with a wiring port, and a connecting wire is threaded through the wiring port. The output end of the connecting wire is sealed through the wiring port and the self-cleaning frame and electrically connected to the input end of the micro air pump.

[0014] Preferably, the self-cleaning frame is provided with support seats on both sides, the two support seats are integral with the bottom shell of the device, and connecting lugs are fixed on the two support seats by screws, and the two connecting lugs are integral with the self-cleaning frame.

[0015] Preferably, a device top cover is sleeved and installed on the upper end of the device bottom shell, and the device top cover has a hexagonal opening inside.

[0016] Preferably, there are seven angle adjustment holes, the angle difference between two adjacent angle adjustment holes is thirty degrees, and the spacing between two adjacent angle adjustment holes is equal.

[0017] Preferably, an outer mounting base is welded onto the outer wall of the inner rotating cylinder, and two mounting rods are provided between the outer mounting base and the mounting base. The two ends of the mounting rods are welded to the outer mounting base and the mounting base, respectively.

[0018] Preferably, the power supply wiring is provided with a wire inlet slot at the connection point between the power supply wiring and the bottom shell of the device, and the two wire inlet slots are integral with the bottom shell of the device.

[0019] Preferably, one end of the positioning pin is integrally formed with a gripping cap, the size of which is larger than the diameter of the angle adjustment hole.

[0020] Preferably, four connecting rods are provided between the base plate and the outer frame, and the two ends of the four connecting rods are welded to the base plate and the outer frame respectively.

[0021] Compared with the prior art, the beneficial effects of this utility model are:

[0022] 1. This utility model can effectively eliminate microorganisms such as bacteria and viruses. The device can generate high-concentration plasma with extremely low power consumption. Even without a fan, it can play a good air purification role in small spaces (such as 1-3m3) by means of the thermal motion (Brownian motion) of the air.

[0023] 2. A miniature air pump draws air from inside the device. The drawn-in air enters the self-cleaning frame and is discharged through the exhaust channel. During the discharge process, the air is filtered and contained in the self-cleaning frame by the dust filter, thus achieving the purpose of self-cleaning the inside of the device. Finally, the self-cleaning device only needs to be removed and the dust cleaned.

[0024] 3. By selecting the appropriate angle adjustment hole and installing the positioning pin, the angle adjustment hole is connected to the magnetic slot, thereby positioning the position of the inner rotating cylinder. Finally, the air purifier is fixedly installed by the mounting screws, so that the air purifier can disinfect and sterilize the indoor air from different positions. Attached Figure Description

[0025] Figure 1 This is a top view of the structure of the low-power plasma self-cleaning disinfection and sterilization air purification device of this utility model.

[0026] Figure 2 This is a side view of the structure of the low-power plasma self-cleaning disinfection and sterilization air purification device of this utility model.

[0027] Figure 3This is a bottom view of the structure of the low-power plasma self-cleaning disinfection and sterilization air purification device of this utility model.

[0028] Figure 4 This is a schematic diagram of the internal structure of the low-power plasma self-cleaning disinfection and sterilization air purification device of this utility model.

[0029] Figure 5 This is a schematic diagram of the internal disassembled structure of the low-power plasma self-cleaning disinfection and sterilization air purification device of this utility model.

[0030] Figure 6 This is an enlarged schematic diagram of part A of the present invention;

[0031] In the diagram: 1. Device bottom shell; 2. Outer frame; 3. Connecting rod; 4. Base plate; 5. Wiring port; 6. Device top cover; 7. Hexagonal opening; 8. Connecting wire; 9. Plasma excitation power supply; 10. Inlet slot; 11. Power supply wiring; 12. Shaft holder; 13. Inner rotating cylinder; 14. Outer connector; 15. Mounting rod; 16. Mounting base; 17. Angle adjustment hole; 18. Gripping cap; 19. Support base; 20. Self-cleaning frame; 21. Connecting ear; 22. Top cover plate; 23. Exhaust duct; 24. Dust filter; 25. Sleeve cylinder; 26. Suction pipe; 27. Emitter array; 28. Miniature air pump; 29. ​​Exhaust pipe; 30. Bearing slot; 31. Connecting shaft; 32. Positioning pin; 33. Magnetic slot. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0033] Please see Figure 1-6 An embodiment of this utility model is provided: a low-power plasma self-cleaning disinfection and sterilization air purification device, including a device bottom shell 1, an outer edge frame 2 integrally formed on the outer wall of the device bottom shell 1, a base plate 4 below the outer edge frame 2, two locking shaft seats 12 integrally formed at the lower end of the base plate 4, and an inner rotating cylinder 13 between the two locking shaft seats 12.

[0034] Also includes:

[0035] The emitter array 27 is located inside the bottom shell 1 of the device. There are two emitter arrays 27. The bottom of the outer frame 2 is fixed with a plasma excitation power supply 9 by screws. A power supply wiring 11 is provided between the output end of the plasma excitation power supply 9 and the input end of the two emitter arrays 27.

[0036] The self-cleaning frame 20 is set inside the bottom shell 1 of the device and located between the two emitter arrays 27. The top of the self-cleaning frame 20 is fixed with a top cover plate 22 by screws. One end of the self-cleaning frame 20 is provided with three exhaust channels 23. The three exhaust channels 23 are connected to the interior of the self-cleaning frame 20. Each of the three exhaust channels 23 is provided with a dust filter 24.

[0037] A miniature air pump 28 is installed inside the self-cleaning frame 20. A sleeve cylinder 25 is movably installed at the upper limit of the air inlet end of the miniature air pump 28. An air extraction pipe 26 is integrally formed on the outer wall of the sleeve cylinder 25. Both the air extraction pipe 26 and the sleeve cylinder 25 are connected to the air inlet end of the miniature air pump 28. An exhaust pipe 29 is installed on the air outlet end of the miniature air pump 28.

[0038] The connecting shaft 31 is integrally formed on both outer walls of the inner rotating cylinder 13, and the bearing groove 30 is provided at the rotational connection position between the shaft holder 12 and the connecting shaft 31. The bearing groove 30 and the shaft holder 12 are integral structures, and the shaft holder 12 is provided with an angle adjustment hole 17 inside.

[0039] When in use, after the device is turned on, the plasma excitation power supply 9 supplies power to the two emitter arrays 27. The plasma excitation technology reproduces the natural air activation process, generating a high concentration of positive and negative ions and a large number of neutral active particles. On the one hand, the large number of positive and negative ions generate instantaneous high energy during the recombination and annihilation process, which can effectively kill bacteria and viruses and decompose odor macromolecules. On the other hand, the large number of active particles can inactivate the essential substances for microbial metabolism, and because they are electrically neutral, they can travel further, further enhancing the space purification capability. The positioning pin 3 is installed by selecting the appropriate angle adjustment hole 17. 2. The angle adjustment hole 17 is connected to the magnetic slot 33 to locate the position of the inner rotating cylinder 13. Finally, the air purifier is fixedly installed by the mounting screws of the mounting base 16, so that the air purifier can disinfect and sterilize the indoor air in different directions. The micro air pump 28 draws air from inside, and the drawn air enters the self-cleaning frame 20 and is discharged through the exhaust channel 23. During the discharge process, the air is filtered and suppressed in the self-cleaning frame 20 by the dust filter 24, achieving the purpose of self-cleaning inside the device. Finally, the self-cleaning device only needs to be removed and cleaned.

[0040] Please see Figure 6 A magnetic slot 33 is provided on one side of the connecting shaft 31. The two magnetic slots 33 are integrated with the inner rotating cylinder 13. A positioning pin 32 is magnetically installed inside one magnetic slot 33 and one angle adjustment hole 17. The magnetic slot 33 on one side of the connecting shaft 31 facilitates the magnetic positioning installation of the positioning pin 32. Please refer to [link / reference]. Figure 5One end of the device's base shell 1 is provided with a wiring port 5. A connecting wire 8 is threaded through the wiring port 5. The output end of the connecting wire 8 is sealed and passes through the wiring port 5 and the self-cleaning frame 20, and is electrically connected to the input end of the micro air pump 28. The wiring port 5 at one end of the device's base shell 1 facilitates the connection of the air purifier to an external power source. Please refer to [link / reference]. Figure 4 The self-cleaning frame 20 has support seats 19 on both sides. The two support seats 19 are integral with the device's bottom shell 1. Connecting lugs 21 are fixed to each support seat 19 by screws. Both connecting lugs 21 are integral with the self-cleaning frame 20. The support seats 19 on both sides of the self-cleaning frame 20 assist in its installation. Please refer to [link / reference]. Figure 1 A top cover 6 is fitted onto the upper end of the bottom shell 1 of the device. The top cover 6 has a hexagonal opening 7 inside. The top cover 6 serves to protect the internal structure of the air purification device. Please refer to [link / reference]. Figure 6 There are seven angle adjustment holes 17, with an angle difference of thirty degrees between any two adjacent angle adjustment holes 17. The spacing between any two adjacent angle adjustment holes 17 is equal. The seven angle adjustment holes 17 facilitate the installation of air purification devices at multiple angles. Please refer to [link / reference]. Figure 2 An external mounting base 14 is welded to the outer wall of the inner rotating cylinder 13. Two supporting connecting rods 15 are provided between the external mounting base 14 and the mounting base 16. The two ends of the supporting connecting rods 15 are welded to the external mounting base 14 and the mounting base 16 respectively. The external mounting base 14 welded to the outer wall of the inner rotating cylinder 13 serves to facilitate the connection of the inner rotating cylinder 13 to the mounting base 16. Please refer to [link / reference]. Figure 2 and Figure 4 A wire inlet slot 10 is provided at the connection point between the power supply wiring 11 and the device bottom shell 1. The two wire inlet slots 10 are integral with the device bottom shell 1. The wire inlet slots 10 at the connection point between the power supply wiring 11 and the device bottom shell 1 facilitate the power supply of the device bottom shell 1 to the two emitter arrays 27. Please refer to [link / reference]. Figure 6 One end of the positioning pin 32 is integrally formed with a gripping cap 18. The size of the gripping cap 18 is larger than the diameter of the angle adjustment hole 17. The gripping cap 18 integrally formed on one end of the positioning pin 32 facilitates the gripping and disassembly of the positioning pin 32. Please refer to [link / reference]. Figure 1 Four connecting rods 3 are provided between the base plate 4 and the outer frame 2. The two ends of the four connecting rods 3 are welded to the base plate 4 and the outer frame 2 respectively. The four connecting rods 3 provided between the base plate 4 and the outer frame 2 serve to connect the base plate 4 and the outer frame 2.

[0041] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A low-power plasma self-cleaning disinfection and sterilization air purification device, comprising a device bottom shell (1), an outer edge frame (2) integrally formed on the outer wall of the device bottom shell (1), a base plate (4) provided below the outer edge frame (2), two locking shaft seats (12) integrally formed at the lower end of the base plate (4), and an inner rotating cylinder (13) provided between the two locking shaft seats (12). Its features are: Also includes: An emitter array (27) is disposed inside the bottom shell (1) of the device. There are two emitter arrays (27), and a plasma excitation power supply (9) is fixed to the bottom of the outer frame (2) by screws. A power supply wiring (11) is provided between the output end of the plasma excitation power supply (9) and the input end of the two emitter arrays (27). The self-cleaning frame (20) is located inside the bottom shell (1) of the device and between the two emitter arrays (27). The top of the self-cleaning frame (20) is fixed with a top cover plate (22) by screws. One end of the self-cleaning frame (20) is provided with three exhaust channels (23). The three exhaust channels (23) are connected to the interior of the self-cleaning frame (20). The interior of each of the three exhaust channels (23) is provided with a dust filter (24). A miniature air pump (28) is disposed inside the self-cleaning frame (20), and a sleeve cylinder (25) is movably disposed at the upper limit of the air inlet end of the miniature air pump (28). An air extraction pipe (26) is integrally formed on the outer wall of the sleeve cylinder (25). The air extraction pipe (26) and the sleeve cylinder (25) are both connected to the air inlet end of the miniature air pump (28). An exhaust pipe (29) is disposed on the air outlet end of the miniature air pump (28). The connecting shaft (31) is integrally formed on both outer walls of the inner rotating cylinder (13), and a bearing groove (30) is provided at the rotational connection position between the shaft holder (12) and the connecting shaft (31). The bearing groove (30) and the shaft holder (12) are integral structures, and an angle adjustment hole (17) is provided inside the shaft holder (12).

2. The low-power plasma self-cleaning disinfection and sterilization air purification device according to claim 1, characterized in that: A magnetic slot (33) is provided on one side of the connecting shaft (31). The two magnetic slots (33) and the inner rotating cylinder (13) are integrated into one structure. A positioning pin (32) is magnetically installed inside one magnetic slot (33) and one angle adjustment hole (17).

3. The low-power plasma self-cleaning disinfection and sterilization air purification device according to claim 1, characterized in that: One end of the bottom shell (1) of the device is provided with a wiring port (5), and a connecting wire (8) is threaded through the wiring port (5). The output end of the connecting wire (8) is sealed through the wiring port (5) and the self-cleaning frame (20) and electrically connected to the input end of the micro air pump (28).

4. The low-power plasma self-cleaning disinfection and sterilization air purification device according to claim 1, characterized in that: The self-cleaning frame (20) is provided with support seats (19) on both sides. The two support seats (19) are integrated with the bottom shell (1) of the device. The two support seats (19) are fixed with connecting ears (21) by screws. The two connecting ears (21) are integrated with the self-cleaning frame (20).

5. The low-power plasma self-cleaning disinfection and sterilization air purification device according to claim 1, characterized in that: The device bottom shell (1) is fitted with a device top cover (6) at the upper end, and the device top cover (6) has a hexagonal opening (7) inside.

6. The low-power plasma self-cleaning disinfection and sterilization air purification device according to claim 1, characterized in that: The angle adjustment holes (17) are provided in seven parts, the angle difference between two adjacent angle adjustment holes (17) is thirty degrees, and the spacing between two adjacent angle adjustment holes (17) is equal.

7. The low-power plasma self-cleaning disinfection and sterilization air purification device according to claim 1, characterized in that: An outer connector (14) is welded onto the outer wall of the inner rotating cylinder (13). Two mounting rods (15) are provided between the outer connector (14) and the mounting base (16). The two ends of the mounting rods (15) are welded to the outer connector (14) and the mounting base (16) respectively.

8. The low-power plasma self-cleaning disinfection and sterilization air purification device according to claim 1, characterized in that: The power supply wiring (11) is provided with a wire inlet groove (10) at the connection position between it and the bottom shell (1) of the device. The two wire inlet grooves (10) and the bottom shell (1) of the device are an integral structure.

9. A low-power plasma self-cleaning disinfection and sterilization air purification device according to claim 2, characterized in that: One end of the positioning pin (32) is integrally formed with a gripping cap (18), the size of which is larger than the diameter of the angle adjustment hole (17).

10. A low-power plasma self-cleaning disinfection and sterilization air purification device according to claim 1, characterized in that: Four connecting rods (3) are provided between the base plate (4) and the outer frame (2), and the two ends of the four connecting rods (3) are welded to the base plate (4) and the outer frame (2) respectively.

Citation Information

Patent Citations

  • Plasma sterilization and disinfection air purifier

    CN212511686U