Fresh air door with filtering, disinfecting and sterilizing integrated function

Abstract

The fresh air door with the filtering, disinfecting and sterilizing integrated function comprises a door body, a fresh air cavity and a dirty air cavity are formed in the two sides of the interior of the door body correspondingly, a fresh air inlet is formed in the side wall of the side, close to the outside of the door, of the fresh air cavity, and a first filtering piece is connected to the fresh air inlet; a fresh air outlet is formed in the side wall of the side, close to the inside of the door, of the fresh air cavity and connected with a first fan, a dirty air inlet is formed in the side wall of the side, close to the inside of the door, of the dirty air cavity and connected with a second filter part, and a dirty air outlet is formed in the side wall of the side, close to the outside of the door, of the dirty air cavity and connected with a second filter part. According to the fresh air door with the filtering, disinfecting and sterilizing integrated function, virus diffusion and infection are effectively reduced, the comfort of personnel in a room is guaranteed, the phenomenon that a filter screen is blocked is reduced, and normal operation of filtering work is guaranteed.

Description

Technical Field

[0001] The invention relates to the field of fresh air doors, and in particular to a fresh air door with integrated filtering, disinfection and sterilization functions. Background Art

[0002] With the decline in air quality in recent years, in order to meet the demand for healthy and comfortable indoor air, various devices that can improve indoor air quality have appeared on the market. However, with the re-recognition of infectious diseases, various indoor air treatment equipment are currently available. During the ventilation process between indoor and outdoor, internal or external viruses can easily spread and cause cross infection. In addition, the existing fresh air equipment will filter the air during use to prevent large impurities from damaging the fan or causing indoor air turbidity. The filter often plays a key role. However, as time goes by, large impurities and debris adhered to and accumulated on the filter will cause blockage, affecting the normal filtration. In addition, during the ventilation process, the temperature difference between indoor and outdoor is generally large due to the effect of air conditioning in winter and summer. Relying on simple exhaust will cause a large change in indoor temperature, thereby reducing the comfort of indoor personnel. Summary of the invention

[0003] The object of the present invention is to provide a fresh air door with integrated filtering, disinfection and sterilization functions to solve the problems raised in the above-mentioned background technology.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical scheme: a fresh air door with integrated filtering, disinfecting and sterilizing functions, comprising a door body, a fresh air chamber and a dirty air chamber are respectively provided on two sides of the door body, a fresh air inlet is provided on the side wall of the fresh air chamber close to the door outside, the fresh air inlet is connected to a first filter element, a fresh air outlet is provided on the side wall of the fresh air chamber close to the door inside, the fresh air outlet is connected to a first fan for conveying air in the fresh air chamber from the fresh air outlet to the inside of the door, a dirty air inlet is provided on the side wall of the dirty air chamber close to the door inside, a second filter element is connected to the dirty air inlet, and a dirty air outlet is provided on the side wall of the dirty air chamber close to the door outside, and the dirty air outlet is connected to a second fan for conveying air in the dirty air chamber from the dirty air outlet to the outside of the door;

[0005] A filter screen is installed on one side of the interior of the fresh air inlet and one side of the interior of the dirty air inlet. A long screw rod close to the filter screen is rotatably installed inside the fresh air inlet and the dirty air inlet. A movable sleeve is threadedly connected to the surface of the long screw rod. A material-prying thin rod is fixedly connected to one side of the movable sleeve. A slag-sweeping brush is provided on one side of the material-prying thin rod, and a micro motor is provided above the long screw rod.

[0006] A heat exchange core is also provided inside the door body, a first installation frame is provided on one side of the fresh air chamber, a heating tube is installed inside the first installation frame, and a second installation frame is provided on the other side of the fresh air chamber, a semiconductor refrigerator is installed inside the second installation frame.

[0007] Preferably, the fresh air outlet is arranged at the upper end of the side wall of the door body, a first air duct is connected between the first fan and the fresh air outlet, and the side wall at the connection between the first air duct and the first fan is arc-shaped, a second air duct is connected between the second fan and the dirty air outlet, and the side wall at the connection between the second air duct and the second fan is arc-shaped.

[0008] Preferably, sound insulation cotton is attached to the inside of the door body, and a number of louvers are provided on the fresh air inlet, fresh air outlet, dirty air inlet and dirty air outlet. The first filter element port and the second filter element port are respectively provided at positions corresponding to the first filter element and the second filter element on the door body. The first filter element is inserted into the first filter element port, and the second filter element is inserted into the second filter element port.

[0009] Preferably, a circuit chamber is also provided inside the door body, and an induction switch matching the external door frame is provided in the circuit chamber near the edge of the door body. The induction switch is electrically connected to the external power supply, and the induction switch is used between the first fan and the second fan to connect the circuit when the door body and the external door frame are closed and disconnect the circuit when the door body and the external door frame are separated.

[0010] Preferably, the two sides of the heat exchange core are respectively in the fresh air chamber and the dirty air chamber, and a plurality of mutually intersecting channels are arranged in the heat exchange core separated by partition plates, and the air in the fresh air chamber and the dirty air chamber respectively passes through the separated channels of the heat exchange core.

[0011] Preferably, the top of the first mounting frame and the top of the second mounting frame are both open, the second mounting frame extends to the outside of the door body, and the hot end of the semiconductor refrigerator is arranged on the outside of the door body, and the cold end of the semiconductor refrigerator is arranged on the inside of the second mounting frame.

[0012] Preferably, the first installation frame and the second installation frame both correspond to the air inlet end of the first fan.

[0013] Preferably, the micro motor is installed at the top of the fresh air inlet and the dirty air inlet, the output end of the micro motor is connected to the long lead screw, and both ends of the long lead screw are provided with connecting bearings for facilitating the rotation and installation of the long lead screw.

[0014] Preferably, a dust box is provided at the bottom of the fresh air inlet and the bottom of the dirty air inlet, a pull block is provided on one side of the dust box, and the dust box corresponds to one side of the bottom of the filter screen, and a drop port is provided at the bottom of the fresh air inlet and the dirty air inlet close to the filter screen.

[0015] Preferably, the material-moving thin rod matches the filter screen, and the residue-sweeping brush contacts the surface of the filter screen.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] The air in the fresh air chamber is transported from the fresh air outlet to the door through the first fan, and is added to the fresh air chamber after being filtered by the first filter element, thereby delivering filtered fresh air to the room. At the same time, the air in the dirty air chamber is discharged from the dirty air outlet to the outside of the door through the second fan, and the air in the door is filtered from the dirty air inlet through the second filter element and is added to the dirty air chamber, thereby filtering and discharging the dirty or virus-containing air in the room to the outside, ensuring that fresh and clean air enters the room and that the polluted air in the room is fully disinfected and sterilized before being discharged to the outside. The inlet and outlet air are disinfected in conjunction with the antimicrobial material coated filter device, which effectively reduces the spread and infection of viruses;

[0018] When the indoor polluted air and fresh air flow through the heat exchange core in a cross manner, a full heat exchange process is caused. When operating in summer, the high-temperature fresh air outdoors obtains coldness from the indoor polluted air, which lowers the temperature. When operating in winter, the outdoor fresh air obtains heat from the indoor polluted air, which raises the temperature, thereby reducing energy consumption. When the air conditioner is turned on indoors in summer, the semiconductor refrigerator cools the air inside the fresh air chamber to lower the temperature of the fresh air entering the room. When the air conditioner is turned on indoors in winter, the heating pipe is started to heat the air inside the fresh air chamber to increase the temperature of the fresh air entering the room. The heat exchange is combined with the cooling and heating treatment, so that the indoor temperature will not change significantly during the ventilation process in winter and summer, ensuring the comfort of people indoors.

[0019] When fresh air is taken in through the air inlet or dirty air is exhausted through the air inlet, the air will be filtered through the filter screen during the process of entering and exiting the door body to filter out larger impurities and debris. The micro motor drives the long screw to rotate, and the movable sleeve moves up and down during the rotation of the long screw. The movable sleeve moves up and down to pull the material-prying rod to move on the side of the filter screen close to the louver bar, and then the debris-sweeping brush on the side of the material-prying rod will sweep away the large impurities and debris adhered to one side of the filter screen during filtering, and the filter screen will be cleared to avoid long-term use of debris to cause clogging of the filter screen, affecting the normal filtering work. It is easy to use, reduces fan damage, reduces filter clogging, and ensures the normal filtering work. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1It is a disassembly diagram of the present invention;

[0021] Figure 2 It is a schematic diagram of the structure in the door body of the present invention;

[0022] Figure 3 It is a schematic diagram of the internal and external structures of the present invention;

[0023] Figure 4 This is a diagram of the internal structure of the fresh air inlet of the present invention;

[0024] Figure 5 It is an enlarged structural diagram of A of the present invention;

[0025] Figure 6 It is a top view of the connection structure of the movable sleeve of the present invention;

[0026] Figure 7 This is an internal structural diagram of the first installation frame of the present invention;

[0027] Figure 8 This is a diagram of the internal structure of the second installation frame of the present invention.

[0028] In the figure: 1. door body; 2. fresh air chamber; 21. fresh air inlet; 22. first filter element; 221. first filter element port; 23. fresh air outlet; 24. first fan; 25. first air duct; 3. dirty air chamber; 31. dirty air inlet; 32. second filter element; 321. second filter element port; 33. dirty air outlet; 34. second fan; 35. second air duct; 4. heat exchange core; 5. circuit chamber; 51. induction switch; 6. louver; 7. filter net; 8. filament; 9. movable sleeve; 10. micro motor; 11. dust box; 12. pull block; 13. material removing rod; 14. slag brush; 15. connecting bearing; 16. first installation frame; 17. second installation frame; 18. heating tube; 19. semiconductor refrigerator. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] See also Figure 1-8The present invention provides a fresh air door with integrated filtering, disinfecting and sterilizing functions, comprising a door body 1, wherein a fresh air chamber 2 and a dirty air chamber 3 are respectively arranged on two sides of the door body 1, a fresh air inlet 21 is opened on the side wall of the fresh air chamber 2 close to the door outside, the fresh air inlet 21 is connected to a first filter element 22, a fresh air outlet 23 is opened on the side wall of the fresh air chamber 2 close to the door inside, the fresh air outlet 23 is connected to a first fan 24 for conveying the air in the fresh air chamber 2 from the fresh air outlet 23 to the inside of the door, a dirty air inlet 31 is opened on the side wall of the dirty air chamber 3 close to the door inside, a second filter element 32 is connected to the dirty air inlet 31, a dirty air outlet 33 is opened on the side wall of the dirty air chamber 3 close to the door outside, and the dirty air outlet 33 is connected to a second fan 34 for conveying the air in the dirty air chamber 3 from the dirty air outlet 33 to the outside of the door;

[0031] In this embodiment, the first filter element 22 and the second filter element 32 both adopt microcapsule sustained-release technology to coat the antimicrobial material on the existing filter device to produce an antimicrobial surface with a combination of release killing, contact killing and antimicrobial adhesion properties for microorganisms. The antimicrobial material is a stable suspension of microcapsules of one or more biocides encapsulated in an inorganic-organic shell, thereby achieving efficient and long-lasting sterilization and disinfection, ensuring that the filtration system is fully protected by disinfection and sterilization.

[0032] See also Figure 1-8The fresh air outlet 23 is arranged at the upper end of the side wall of the door body 1, a first air duct 25 is connected between the first fan 24 and the fresh air outlet 23, and the side wall of the connection between the first air duct 25 and the first fan 24 is arc-shaped, a second air duct 35 is connected between the second fan 34 and the dirty air outlet 33, and the side wall of the connection between the second air duct 35 and the second fan 34 is arc-shaped, sound insulation cotton is attached to the inside of the door body 1, and a plurality of louver strips 6 are arranged on the fresh air inlet 21, the fresh air outlet 23, the dirty air inlet 31, and the dirty air outlet 33. A first filter element port 221 and a second filter element port 321 are respectively arranged at positions corresponding to the first filter element 22 and the second filter element 32 on the door body 1, and the first filter element 22 is plugged into the first filter element port 221, and the second filter element 32 is plugged into the second filter element port 32 1, when in use, the first filter element 22 and the second filter element 32 can be directly replaced by plugging and unplugging outside the door body 1, which is convenient for use. A circuit chamber 5 is also provided inside the door body 1, and a sensing switch 51 matching the external door frame is provided near the edge of the door body 1. The sensing switch 51 is electrically connected to the external power supply. The sensing switch 51 is between the first fan 24 and the second fan 34 to connect the circuit when the door body 1 and the external door frame are closed and disconnect the circuit when the door body 1 and the external door frame are separated. When the air is accelerated by the fan, it will collide with the air duct wall, thereby generating noise. The side wall of the connection between the first air duct 25 and the first fan 24 and the side wall of the connection between the second air duct 35 and the second fan 34 of the present invention are both arc-shaped, thereby avoiding the collision of the air with the air duct wall after acceleration, and reducing noise;

[0033] In this embodiment, the present invention conveys the air in the fresh air chamber 2 from the fresh air outlet 23 to the door through the first fan 24. Due to the negative pressure formed in the fresh air chamber 2, the air outside the door will be filtered through the first filter element 22 from the fresh air inlet 21 and then replenished into the fresh air chamber 2, thereby delivering filtered fresh air into the room; at the same time, the air in the dirty air chamber 3 is discharged from the dirty air outlet 33 to the outside of the door through the second fan 34. Due to the negative pressure formed in the dirty air chamber 3, the air in the door will be filtered through the second filter element 32 from the dirty air inlet 31 and then replenished into the dirty air chamber 3, thereby the dirty or virus-containing air in the room is filtered and discharged to the outside, ensuring that fresh and clean air enters the room and that the contaminated air in the room is fully disinfected and sterilized before being discharged to the outside, without causing secondary infection.

[0034] See also Figure 1-8, the two sides of the heat exchange core 4 are respectively in the fresh air chamber 2 and the dirty air chamber 3, and the heat exchange core 4 is divided by a partition plate to provide a plurality of mutually intersecting channels, the air in the fresh air chamber 2 and the dirty air chamber 3 respectively passes through the partition channels of the heat exchange core 4, the top of the first mounting frame 16 and the top of the second mounting frame 17 are both open, the second mounting frame 17 extends to the outside of the door body 1, and the hot end of the semiconductor refrigerator 19 is arranged on the outside of the door body 1, and the cold end of the semiconductor refrigerator 19 is arranged on the inside of the second mounting frame 17, and the first mounting frame 16 and the second mounting frame 17 both correspond to the air inlet end of the first fan 24;

[0035] In this embodiment, when the product is working, when the indoor dirty air and the fresh air flow through the heat exchange core 4 in a cross manner, due to the temperature difference between the airflows on both sides of the partition plate, the two airflows present a heat transfer phenomenon when passing through the partition plate, causing a full heat exchange process. When operating in summer, the outdoor high-temperature fresh air obtains cooling capacity from the indoor dirty air, thereby lowering the temperature. When operating in winter, the outdoor fresh air obtains heat from the indoor dirty air, thereby raising the temperature, thereby reducing energy consumption. When the indoor air conditioner is turned on in summer, the semiconductor refrigerator 19 inside the second installation frame 17 is started to cool the air inside the fresh air chamber 2, thereby lowering the temperature of the fresh air entering the room, thereby avoiding the phenomenon that the indoor temperature rises significantly due to the fresh air. When the indoor air conditioner is turned on in winter, the heating tube 18 inside the first installation frame 16 is started to heat the air inside the fresh air chamber 2, thereby raising the temperature of the fresh air entering the room, thereby avoiding the phenomenon that the indoor temperature drops significantly due to the fresh air, thereby ensuring that the indoor temperature does not change significantly, thereby improving the indoor comfort of people.

[0036] A filter screen 7 is installed on one side of the fresh air inlet 21 and one side of the dirty air inlet 31. A long screw rod 8 close to the filter screen 7 is rotatably installed inside the fresh air inlet 21 and the dirty air inlet 31. A movable sleeve 9 is threadedly connected to the surface of the long screw rod 8. A material-prying thin rod 13 is fixedly connected to one side of the movable sleeve 9. A slag-sweeping brush 14 is provided on one side of the material-prying thin rod 13. A micro motor 10 is provided above the long screw rod 8. The micro motor 10 is installed at the top of the fresh air inlet 21 and the dirty air inlet 31. The output end of the micro motor 10 is connected to the long screw 8, and both ends of the long screw 8 are sleeved with connecting bearings 15 for rotatable installation of the long screw 8. The bottom of the fresh air inlet 21 and the bottom of the dirty air inlet 31 are both provided with dust boxes 11, and a pull block 12 is provided on one side of the dust box 11, and the dust box 11 corresponds to one side of the bottom of the filter screen 7. The bottom of the fresh air inlet 21 and the dirty air inlet 31 close to the filter screen 7 is provided with a drop port, the material-prying thin rod 13 matches the filter screen 7, and the slag brush 14 contacts the surface of the filter screen 7;

[0037] In this embodiment, the movable sleeve 9 moves up and down to pull the material-moving rod 13 to move on the side of the filter screen 7 close to the louver bar 6, and then the debris sweeping brush 14 on one side of the material-moving rod 13 sweeps away the large impurities and debris adhered to one side of the filter screen 7 during filtering, and the swept away large debris and impurities will fall into the ash box 11 for collection, and the ash box 11 can be taken out and emptied regularly.

[0038] When used specifically, the present invention provides a fresh air door with an integrated filtering, disinfecting and sterilizing function. The present invention uses a first fan 24 to transport the air in the fresh air chamber 2 from the fresh air outlet 23 to the door. Due to the negative pressure formed in the fresh air chamber 2, the air outside the door will be filtered through the first filter element 22 from the fresh air inlet 21 and then replenished into the fresh air chamber 2, thereby delivering filtered fresh air into the room; at the same time, the air in the dirty air chamber 3 is discharged from the dirty air outlet 33 to the outside of the door through the second fan 34. Due to the negative pressure formed in the dirty air chamber 3, the air in the door will be filtered through the second filter element 32 from the dirty air inlet 31 and then replenished into the dirty air chamber 3, thereby filtering and discharging the dirty or virus-containing air in the room to the outside, ensuring that fresh and clean air enters the room and that the polluted air in the room is fully disinfected and sterilized before being discharged to the outside;

[0039] In addition, when air is taken in through the fresh air inlet 21 or exhausted through the dirty air inlet 31, the air will be filtered through the filter screen 7 during the process of entering and exiting the door body 1, and larger impurities and debris will be filtered out to avoid damage to the fan. In the process of exhausting air, the micro motor 10 works to drive the long screw 8 to rotate. During the rotation of the long screw 8, the movable sleeve 9 moves up and down. The movable sleeve 9 moves up and down to pull the material-prying rod 13 to move on the side of the filter screen 7 close to the louver bar 6, and then the residue sweeping brush 14 on the side of the material-prying rod 13 cleans away the large impurities and debris adhered to one side of the filter screen 7 during filtering, and clears the filter screen to avoid long-term use of debris causing clogging of the filter screen, affecting normal filtering work. It is easy to use, reduces fan damage, reduces filter clogging, and ensures normal filtering work.

[0040] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A fresh air door with integrated filtering, disinfecting and sterilizing functions, comprising a door body (1), characterized in that: A fresh air chamber (2) and a dirty air chamber (3) are respectively provided on both sides of the interior of the door body (1); a fresh air inlet (21) is provided on the side wall of the fresh air chamber (2) close to the door exterior, and a first filter element (22) is connected to the fresh air inlet (21); a fresh air outlet (23) is provided on the side wall of the fresh air chamber (2) close to the door interior, and a first fan (24) is connected to the fresh air outlet (23) for transferring air in the fresh air chamber (2) from the fresh air chamber (2) to the dirty air chamber (3); Fresh air is delivered to the inside of the door through a fresh air outlet (23); a dirty air inlet (31) is provided on a side wall of the dirty air chamber (3) close to the inside of the door; a second filter element (32) is connected to the dirty air inlet (31); a dirty air outlet (33) is provided on a side wall of the dirty air chamber (3) close to the outside of the door; a second fan (34) is connected to the dirty air outlet (33) for delivering the air in the dirty air chamber (3) from the dirty air outlet (33) to the outside of the door; A filter screen (7) is installed on one side of the interior of the fresh air inlet (21) and one side of the interior of the dirty air inlet (31); a long screw rod (8) close to the filter screen (7) is rotatably installed inside the fresh air inlet (21) and the dirty air inlet (31); a movable sleeve (9) is threadedly connected to the surface of the long screw rod (8); a material-moving thin rod (13) is fixedly connected to one side of the movable sleeve (9); a slag-sweeping brush (14) is provided on one side of the material-moving thin rod (13); and a micro motor (10) is provided above the long screw rod (8); A heat exchange core (4) is also provided inside the door body (1); a first installation frame (16) is provided on one side inside the fresh air chamber (2); a heating pipe (18) is installed inside the first installation frame (16); a second installation frame (17) is provided on the other side inside the fresh air chamber (2); a semiconductor refrigerator (19) is installed inside the second installation frame (17).

2. The fresh air door with integrated filtering, disinfection and sterilization functions according to claim 1 is characterized by: The fresh air outlet (23) is arranged at the upper end of the side wall of the door body (1); a first air duct (25) is connected between the first fan (24) and the fresh air outlet (23); the side wall at the connection between the first air duct (25) and the first fan (24) is in an arc shape; a second air duct (35) is connected between the second fan (34) and the dirty air outlet (33); the side wall at the connection between the second air duct (35) and the second fan (34) is in an arc shape.

3. The fresh air door with integrated filtering, disinfection and sterilization functions according to claim 1 is characterized by: Sound insulation cotton is attached to the interior of the door body (1); a plurality of louver bars (6) are provided on the fresh air inlet (21), the fresh air outlet (23), the dirty air inlet (31), and the dirty air outlet (33); a first filter element port (221) and a second filter element port (321) are provided at positions corresponding to the first filter element (22) and the second filter element (32) on the door body (1); the first filter element (22) is plugged into the first filter element port (221), and the second filter element (32) is plugged into the second filter element port (321).

4. The fresh air door with integrated filtering, disinfection and sterilization functions according to claim 1 is characterized by: A circuit chamber (5) is also provided inside the door body (1), and an induction switch (51) matching the external door frame is provided near the edge of the door body (1) in the circuit chamber (5).

5. The fresh air door with integrated filtering, disinfection and sterilization functions according to claim 1 is characterized by: The two sides of the heat exchange core (4) are respectively located in the fresh air chamber (2) and the dirty air chamber (3), and a plurality of mutually intersecting channels are arranged in the heat exchange core (4) through partition plates, and the air in the fresh air chamber (2) and the dirty air chamber (3) respectively passes through the partition channels of the heat exchange core (4).

6. The fresh air door with integrated filtering, disinfection and sterilization functions according to claim 1 is characterized by: The top of the first installation frame (16) and the top of the second installation frame (17) are both open, the second installation frame (17) extends to the outside of the door body (1), and the hot end of the semiconductor cooler (19) is arranged on the outside of the door body (1), and the cold end of the semiconductor cooler (19) is arranged on the inside of the second installation frame (17).

7. The fresh air door with integrated filtering, disinfection and sterilization functions according to claim 1 is characterized by: The first installation frame (16) and the second installation frame (17) both correspond to the air inlet end of the first fan (24).

8. The fresh air door with integrated filtering, disinfection and sterilization functions according to claim 1 is characterized by: The micro motor (10) is installed at the top of the fresh air inlet (21) and the dirty air inlet (31), and the output end of the micro motor (10) is connected to the long screw rod (8). Both ends of the long screw rod (8) are sleeved with connecting bearings (15) for facilitating the rotational installation of the long screw rod (8).

9. The fresh air door with integrated filtering, disinfection and sterilization functions according to claim 1 is characterized by: A dust box (11) is provided at the bottom of the fresh air inlet (21) and the bottom of the dirty air inlet (31), a pull block (12) is provided on one side of the dust box (11), and the dust box (11) corresponds to one side of the bottom of the filter net (7), and a drop opening is provided at the bottom of the fresh air inlet (21) and the dirty air inlet (31) on the side close to the filter net (7).

10. The fresh air door with integrated filtering, disinfection and sterilization functions according to claim 1 is characterized in that: The material-moving thin rod (13) matches the filter screen (7), and the residue-sweeping brush (14) contacts the surface of the filter screen (7).

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