Air conditioner with dust removal and sterilization function

By designing an air conditioning system with rotatable electrode fan blades and brush assemblies, the problem of microbial growth caused by dust accumulation has been solved, achieving automatic dust removal and sterilization, improving the practicality and safety of the air conditioner, and simplifying the cleaning process.

CN122384162APending Publication Date: 2026-07-14GUIZHOU INST OF TECH

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
GUIZHOU INST OF TECH
Filing Date
2026-06-03
Publication Date
2026-07-14

AI Technical Summary

Technical Problem

In existing air conditioning systems, dust accumulation on electrodes and dust collection plates leads to microbial growth, causing secondary pollution, and users need to manually clean them frequently, affecting convenience and safety.

Method used

The design incorporates rotatable electrode fan blades, combined with a high-voltage electric field for sterilization and a brush assembly within the cleaning chamber, to achieve automatic cleaning and sterilization of dust. The fan blades are driven to rotate by airflow and wash away dust in the cleaning chamber, while the cleaning fluid and brush assembly thoroughly remove contaminants.

Benefits of technology

It achieves the dust removal and sterilization effect of air conditioners, prevents dust accumulation, improves the practicality and safety of the device, simplifies the cleaning process, and extends the service life of electrode materials.

✦ Generated by Eureka AI based on patent content.

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Abstract

This invention discloses an air conditioner for dust removal and sterilization, belonging to the technical field of refrigeration devices. It includes an air conditioner body and a housing fixedly connected to the air conditioner body. An air inlet and an air outlet are respectively opened on the housing along the air intake direction of the air conditioner. A central shaft is fixed in the middle of the housing along the air intake direction. The housing is divided into a lower cleaning chamber and an upper blowing chamber by a horizontal plane passing through the central shaft. The cleaning chamber contains cleaning fluid. A rotating sleeve is fixedly installed on the outer side of the central shaft, and fan blades are rotatably installed on the outer side of the rotating sleeve. The upper and lower halves of the fan blades are located in the blowing chamber and cleaning chamber, respectively. The fan blades can be driven to rotate by the air intake airflow of the air conditioner. A brush assembly for washing the surface of the fan blades is also installed in the cleaning chamber. The fan blades are made of electrode material, and the center of the fan blades is electrically connected to the rotating sleeve. The rotating sleeve is connected to a power supply and a controller via a cable. This invention can effectively achieve dust removal and sterilization.
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Description

Technical Field

[0001] This invention belongs to the field of refrigeration equipment technology, and specifically relates to an air conditioner that removes dust and sterilizes. Background Technology

[0002] Currently, most air conditioning systems on the market regulate indoor temperature and humidity through cooling or heating cycles. To improve quality of life, some existing technologies use strong electric fields to kill bacteria and viruses. However, dust in the electric field gradually accumulates on the electrodes and dust collection plates. Bacteria, mold, and other microorganisms attached to the dust layer can multiply rapidly in humid environments and may be released back into the air, causing secondary pollution. Because it is impossible to clean the dust accumulation on the electric field without disassembling the unit, users often need to manually clean the dust collection components frequently. This affects ease of use and can easily damage high-voltage components due to improper disassembly and assembly. This problem seriously restricts the practical application of electric field dust removal and sterilization technology in air conditioning energy saving and long-term operation. Summary of the Invention

[0003] In view of this, the purpose of the present invention is to provide an air conditioner that can effectively remove dust and sterilize.

[0004] To achieve the above objectives, the present invention provides the following technical solution: This invention discloses an air conditioner for dust removal and sterilization, comprising an air conditioner body and a housing fixedly connected to the air conditioner body. An air inlet and an air outlet are respectively opened on the housing along the air intake direction of the air conditioner. A central shaft is fixed in the middle of the housing along the air intake direction. The housing is divided into a lower cleaning chamber and an upper blowing chamber by a horizontal plane passing through the central shaft. The cleaning chamber contains cleaning fluid. A rotating sleeve is fixedly installed on the outer side of the central shaft, and a fan blade is rotatably installed on the outer side of the rotating sleeve. The upper and lower halves of the fan blade are located in the blowing chamber and the cleaning chamber, respectively. The fan blade can be driven to rotate under the air intake airflow of the air conditioner. A brush assembly for washing the surface of the fan blade is also installed in the cleaning chamber. The fan blade is made of electrode material, and the center of the fan blade is electrically connected to the rotating sleeve. The rotating sleeve is connected to a power supply and a controller via a cable.

[0005] Furthermore, the fan blade includes a fan ring and multiple blades evenly spaced along the circumference of the fan ring. The fan blade is driven to rotate by airflow, and the thickness of the blade on the liquid inlet side is less than the thickness of the blade on the liquid outlet side.

[0006] Furthermore, the brush assembly includes a U-shaped support plate and a cleaning brush rotatably connected to the support plate. Two sets of support plates are symmetrically installed at both ends of the cleaning brush. The fan blades are limited and installed in the gap groove formed by the two sets of support plates. Multiple sets of cleaning brushes are evenly spaced along the circumference of the support plate. The cleaning brush includes a rotating cylinder and brush heads arrayed on the surface of the rotating cylinder. The axis of the rotating cylinder is parallel to the axis of the central shaft. A groove for the flow of cleaning fluid is formed on the upper side of the support plate.

[0007] Furthermore, a damping torsion spring is installed between the rotating drum and the support plate, which provides a damping force for the rotation of the rotating drum.

[0008] Furthermore, sliding holes are provided at both ends of the support plate, and the sliding holes are slidably set on the outside of the guide rod. Two sets of guide rods are fixed parallel to each other on the inside of the box. The guide rods extend along the length of the central axis. A base is fixed at the bottom of the support plate, and a threaded rod is threadedly connected to the base. The threaded rod is rotatably connected to the box and connected to the first motor.

[0009] Furthermore, the housing has a square structure, and a chip collection device is installed on one side of the bottom of the housing. The bottom of the housing is inclined parallel to the side where the chip collection device is located. A first opening slot is opened at the bottom of the housing corresponding to the chip collection device. The chip collection device includes a fixed outer cylinder and a rotating inner cylinder. The fixed outer cylinder is fixed to the outside of the housing. A second opening slot is opened at the bottom of the fixed outer cylinder. The rotating inner cylinder is coaxially rotatably installed inside the fixed outer cylinder. The outer wall of the rotating inner cylinder is in rotatable contact with the inner wall of the fixed outer cylinder. A third opening slot is opened on the rotating inner cylinder. The first opening slot, the second opening slot, and the third opening slot all extend along the length direction of the central axis. When in working condition, the third opening slot and the first opening slot are connected.

[0010] Furthermore, a rotating plate is fixed to one end of the rotating inner cylinder. The rotating plate is rotatably installed inside the fixed outer cylinder. The rotating plate is fixedly connected to the rotating shaft. The rotating shaft rotates in a sealed manner past the end of the fixed outer cylinder and is then connected to the second motor. The second motor is fixed to the outside of the housing.

[0011] The beneficial effects of this invention are as follows: This invention discloses an air conditioner for dust removal and sterilization. By designing fan blades that can generate a high-voltage electric field, sterilization can be achieved. At the same time, the fan blades are driven to rotate under the air intake airflow of the air conditioner, which can adsorb some of the dust in the air intake. The dust is washed away in the cleaning chamber to prevent dust accumulation, thereby achieving the effect of dust removal and sterilization and improving the practicality of the device. Attached Figure Description

[0012] To make the objectives, technical solutions, and beneficial effects of this invention clearer, the following figures are provided for illustration: Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the structure of the housing of the present invention; Figure 3 This is a schematic diagram of the fan blade structure; Figure 4 for Figure 3 Enlarged view of point A in the middle; Figure 5 This is a schematic diagram of the structure for fixing the outer cylinder.

[0013] The following components are labeled in the attached diagram: 1. Air conditioner body; 2. Housing; 3. Air inlet; 4. Air outlet; 5. Central shaft; 6. Rotating sleeve; 7. Fan blade; 8. Brush assembly; 9. Cable; 10. Fan ring; 11. Blade; 12. Support plate; 13. Rotating cylinder; 14. Brush head; 15. Groove; 16. Damping torsion spring; 17. Sliding hole; 18. Guide rod; 19. Base; 20. Threaded rod; 21. First motor; 22. Chip collection device; 23. First opening groove; 24. Fixed outer cylinder; 25. Rotating inner cylinder; 26. Second opening groove; 27. Third opening groove; 28. Rotating plate; 29. ​​Rotating shaft; 30. Second motor. Detailed Implementation

[0014] like Figures 1-5 As shown, the present invention discloses an air conditioner for dust removal and sterilization, including an air conditioner body 1 and a housing 2 fixedly connected to the air conditioner body 1. The air conditioner body 1 can adopt an existing mechanism. An air inlet 3 and an air outlet 4 are respectively opened on the housing 2 along the air intake direction of the air conditioner. The air absorbed by the air conditioner first enters the housing 2 through the air inlet 3, and then enters the inner side of the air conditioner body 1 through the air outlet 4.

[0015] A central shaft 5 is fixed in the middle of the housing 2 along the air intake direction. The housing 2 is divided into a lower cleaning chamber and an upper blowing chamber by a horizontal plane passing through the central shaft 5. The cleaning chamber contains cleaning fluid. A rotating sleeve 6 is fixedly installed on the outside of the central shaft 5. A fan blade 7 is rotatably installed on the outside of the rotating sleeve 6. The fan blade 7 can rotate relative to the rotating sleeve 6. By setting the rotating sleeve 6, the rotating sleeve 6 and the fan blade 7 are axially limited, and the two can move together. The upper half and lower half of the fan blade 7 are located in the blowing chamber and the cleaning chamber, respectively. The fan blade 7 can be driven to rotate by the air intake airflow of the air conditioner. A brush assembly 8 for washing the surface of the fan blade 7 is also installed in the cleaning chamber. The fan blade 7 is made of electrode material. The center of the fan blade 7 is electrically connected to the rotating sleeve 6. The rotating sleeve 6 is connected to a power supply and a controller through a cable 9. The power supply provides a high-frequency, high-voltage electric field to the fan blade 7 to achieve the purpose of sterilization.

[0016] This invention achieves automatic rotation of the fan blade 7 under the drive of the air conditioner's intake airflow by designing the fan blade 7 as a rotatable electrode structure, with its upper and lower halves located in the air blowing chamber and cleaning chamber, respectively. This eliminates the need for an additional drive motor, saving energy and simplifying the structure. When the fan blade 7 rotates, its upper half adsorbs dust and microorganisms from the air in the air blowing chamber, then moves into the cleaning chamber, where the cleaning fluid and brush assembly 8 work together to thoroughly remove the adsorbed contaminants. The fan blade 7 continuously generates a high-voltage electric field during rotation, enabling real-time sterilization of the passing air, especially effective against pathogenic microorganisms such as Legionella and mold that easily proliferate during long-term air conditioner operation.

[0017] In this embodiment, the fan blade 7 includes a fan ring 10 and multiple blades 11 evenly spaced along the circumference of the fan ring 10. The fan blade 7 is driven to rotate by airflow. The thickness of the liquid inlet side of the blades 11 is less than the thickness of the liquid outlet side of the blades 11. The design of the thickness difference of the blades 11 allows the thinner liquid inlet side to cut into the cleaning liquid more easily when the blades 11 rotate in the cleaning chamber, reducing rotational resistance, while the thicker liquid outlet side can generate a greater liquid pushing effect during rotation, causing the cleaning liquid to form turbulence on the surface of the blades 11, enhancing the flushing effect on the attached dust. At the same time, the thicker liquid outlet side is conducive to forming a stable adsorption interface on the surface of the blades 11, improving the dust capture capability.

[0018] In this embodiment, the brush assembly 8 includes a U-shaped support plate 12 and a cleaning brush rotatably connected to the support plate 12. Two sets of support plates 12 are symmetrically installed at both ends of the cleaning brush. The fan blade 7 is limited and installed in the spacer groove formed by the two sets of support plates 12. Thus, when the two sets of support plates 12 move back and forth, they can also drive the fan blade 7 to move together, realizing the exchange cleaning of multiple positions in the cleaning chamber. Multiple sets of cleaning brushes are evenly spaced along the circumference of the support plate 12. The cleaning brush includes a rotating cylinder 13 and brush heads 14 arrayed on the surface of the rotating cylinder 13. The axis of the rotating cylinder 13 is parallel to the axis of the central shaft 5. A groove 15 for the flow of cleaning fluid is formed on the upper side of the support plate 12. The flow of cleaning fluid also plays a cooling role, which can remove the heat generated by the fan blade 7 when it is working in a high-voltage electric field and extend the service life of the electrode material.

[0019] In this embodiment, a damping torsion spring 16 is installed between the rotating drum 13 and the support plate 12, providing a damping force for the rotation of the rotating drum 13. When the fan blade 7 rotates and drives the brush head 14 of the cleaning brush, the brush head 14, under the frictional force of the surface of the fan blade 7, will cause the rotating drum 13 to rotate. The damping torsion spring 16 provides a resistance in the opposite direction of rotation, preventing the rotating drum 13 from rotating freely with the fan blade 7. In this way, the brush head 14 and the surface of the fan blade 7 maintain sliding friction rather than rolling friction. Under sliding friction, the brush head 14 has a stronger scraping force on the surface of the fan blade 7, resulting in a more thorough cleaning effect.

[0020] In this embodiment, sliding holes 17 are provided at both ends of the support plate 12. The sliding holes 17 are slidably disposed on the outside of the guide rod 18. Two sets of guide rods 18 are fixed parallel to each other on the inside of the housing 2. The guide rods 18 extend along the length direction of the central axis 5. A base 19 is fixed to the bottom of the support plate 12. A threaded rod 20 is threadedly connected to the base 19. The threaded rod 20 is rotatably connected to the housing 2. The threaded rod 20 is connected to a first motor 21. By driving the threaded rod 20 to rotate through the first motor 21, the entire brush assembly 8 can be driven to move back and forth along the guide rod 18. During the movement, the cleaning position of the cleaning brush on the fan blade 7 changes accordingly, realizing the transformation of different positions in the cleaning chamber, so that the cleaning liquid is fully utilized and the cleaning effect is better.

[0021] In this embodiment, the housing 2 has a square structure. A chip collection device 22 is installed on one side of the bottom of the housing 2, and the bottom of the housing 2 is inclined parallel to the side where the chip collection device 22 is located. A first opening slot 23 is opened at the corresponding position of the bottom of the housing 2 and the chip collection device 22. The chip collection device 22 includes a fixed outer cylinder 24 and a rotating inner cylinder 25. The fixed outer cylinder 24 is fixed to the outside of the housing 2, and a second opening slot 26 is opened at the bottom of the fixed outer cylinder 24. The rotating inner cylinder 25 is coaxially rotatably installed inside the fixed outer cylinder 24, and the outer wall of the rotating inner cylinder 25 is parallel to the fixed outer cylinder 24. The inner wall of the rotating inner cylinder 25 has a rotating contact. A third opening groove 27 is provided on the rotating inner cylinder 25. The first opening groove 23, the second opening groove 26, and the third opening groove 27 all extend along the length of the central axis 5. In operation, the third opening groove 27 and the first opening groove 23 are connected. Under the influence of gravity, the dust, debris, and sludge continuously deposited in the cleaning chamber will automatically slide along the inclined bottom surface of the housing 2 towards the side where the debris collection device 22 is located. No additional conveying mechanism is needed, achieving automatic collection of contaminants. At this time, waste debris formed after the dust has been moistened can be collected normally. When the rotating inner cylinder 25 rotates, the third opening groove 27 and the second opening groove 26 are connected. Contaminants inside the rotating inner cylinder 25 can be automatically discharged from the second opening groove 26. At this time, the first opening groove 23 is sealed by the outer wall of the rotating inner cylinder 25 to prevent the cleaning fluid from flowing out.

[0022] In this embodiment, a rotating plate 28 is fixed to one end of the rotating inner cylinder 25. The rotating plate 28 is rotatably mounted inside the fixed outer cylinder 24. The rotating plate 28 is fixedly connected to a rotating shaft 29. The rotating shaft 29 rotates in a sealed manner past the end of the fixed outer cylinder 24 and is then connected to a second motor 30. The second motor 30 is fixed to the outside of the housing 2. The rotating plate 28 is then connected to the rotating shaft 29 passing through the end of the fixed outer cylinder 24 and is driven by the second motor 30, thus realizing precise electric control of the discharge state of the chip collection device 22.

Claims

1. An air conditioner for dust removal and sterilization, characterized in that: The system includes an air conditioner body and a housing fixedly connected to the air conditioner body. An air inlet and an air outlet are respectively opened on the housing along the air intake direction of the air conditioner. A central shaft is fixed in the middle of the housing along the air intake direction. The housing is divided into a lower cleaning chamber and an upper blowing chamber by a horizontal plane passing through the central shaft. The cleaning chamber contains cleaning fluid. A rotating sleeve is fixedly installed on the outer side of the central shaft, and a fan blade is rotatably installed on the outer side of the rotating sleeve. The upper and lower halves of the fan blade are located in the blowing chamber and cleaning chamber respectively. The fan blade can be driven to rotate by the air intake airflow of the air conditioner. A brush assembly for washing the surface of the fan blade is also installed in the cleaning chamber. The fan blade is made of electrode material, and the center of the fan blade is electrically connected to the rotating sleeve. The rotating sleeve is connected to a power supply and a controller via a cable.

2. The air conditioner for dust removal and sterilization according to claim 1, characterized in that: The fan blades consist of a fan ring and multiple blades evenly spaced along the circumference of the fan ring. The fan blades are driven to rotate by airflow, and the thickness of the blades on the liquid inlet side is less than the thickness of the blades on the liquid outlet side.

3. The air conditioner for dust removal and sterilization according to claim 2, characterized in that: The brush assembly includes a U-shaped support plate and a cleaning brush rotatably connected to the support plate. Two sets of support plates are symmetrically installed at both ends of the cleaning brush. The fan blades are limited and installed in the gap groove formed by the two sets of support plates. Multiple sets of cleaning brushes are evenly spaced along the circumference of the support plate. The cleaning brush includes a rotating cylinder and brush heads arrayed on the surface of the rotating cylinder. The axis of the rotating cylinder is parallel to the axis of the central shaft. A groove for the flow of cleaning fluid is formed on the upper side of the support plate.

4. An air conditioner for dust removal and sterilization according to claim 3, characterized in that: A damping torsion spring is installed between the rotating drum and the support plate, which provides damping force for the rotation of the rotating drum.

5. An air conditioner for dust removal and sterilization according to claim 4, characterized in that: The support plate has sliding holes at both ends, which are slidably located on the outside of the guide rod. Two sets of guide rods are fixed parallel to each other on the inside of the box. The guide rods extend along the length of the central axis. A base is fixed at the bottom of the support plate, and a threaded rod is threadedly connected to the base. The threaded rod is rotatably connected to the box and is connected to the first motor.

6. An air conditioner for dust removal and sterilization according to any one of claims 1-5, characterized in that: The housing has a square structure, with a chip collection device installed on one side of the bottom. The bottom of the housing is parallel to the side where the chip collection device is located and is inclined. A first opening slot is opened at the bottom of the housing corresponding to the chip collection device. The chip collection device includes a fixed outer cylinder and a rotating inner cylinder. The fixed outer cylinder is fixed to the outside of the housing. A second opening slot is opened at the bottom of the fixed outer cylinder. The rotating inner cylinder is coaxially rotatably installed inside the fixed outer cylinder. The outer wall of the rotating inner cylinder is in rotatable contact with the inner wall of the fixed outer cylinder. A third opening slot is opened on the rotating inner cylinder. The first, second, and third opening slots all extend along the length of the central axis. When in working condition, the third opening slot and the first opening slot are connected.

7. An air conditioner for dust removal and sterilization according to claim 6, characterized in that: A rotating plate is fixed to one end of the rotating inner cylinder. The rotating plate is rotatably installed inside the fixed outer cylinder. The rotating plate is fixedly connected to the rotating shaft. The rotating shaft rotates in a sealed manner past the end of the fixed outer cylinder and is then connected to the second motor. The second motor is fixed to the outside of the housing.