Energy-saving positive-pressure fresh air purification and oxygenation air conditioner

Abstract

The energy-saving positive-pressure fresh air purification and oxygenation air conditioner comprises an outdoor unit and an indoor unit, a filter screen piece is installed on the surface of the outdoor unit, a lead screw is installed on the outer surface of the outdoor unit through a shaft frame, and the surface of the lead screw is in threaded connection with a cleaning scraping frame in a sleeving mode; the interior of the cleaning part is divided into a negative pressure cavity and a storage cavity through a partition plate, a ventilation pipe is installed in the negative pressure cavity in a penetrating mode, a baffle is installed on the surface of one side of the cleaning part in a sliding and penetrating mode, a filter plate is installed on the surface of the partition plate through a shaft rod, and an adjusting assembly used for adjusting the opening angle of the filter plate during negative pressure suction is installed in the storage cavity. Through cooperation of the ventilation pipe, the branch pipe and the cleaning scraping frame, air inlet flow generated when the outdoor unit works serves as a power source, the air flow is converted into negative pressure suction, scraped blockages are sucked and transferred into the containing cavity, and therefore the problem of secondary dust raising is avoided.

Description

Technical Field

[0001] This invention relates to an energy-saving positive pressure fresh air purification and oxygenation air conditioner, and particularly to an energy-saving positive pressure fresh air purification and oxygenation air conditioner applied in the field of indoor air conditioning devices. Background Technology

[0002] Positive pressure fresh air purification and oxygenation air conditioner is an air conditioner that integrates fresh air and oxygenation. The positive pressure operation allows indoor air to seep out through gaps such as door and window seams, preventing unfiltered dirty air from the outside from entering the room, which promotes the maintenance and improvement of the indoor environment.

[0003] Chinese patent CN207365205U discloses a positive pressure fresh air purification and oxygen-enriching air conditioner that prevents smog and can continuously provide clean indoor air. In addition, the oxygen-enriching air conditioner has a simple structure and reasonable design, which effectively ensures the long-lasting freshness of indoor air and provides a comfortable feeling, making it suitable for widespread use.

[0004] Chinese patent CN118998822B discloses a dual-frequency conversion air conditioning unit for computer rooms and its control method. By using the sliding operation of the cleaning block and the cooperation of the atomizing spray pipe to clean the surface of the filter, the air volume of the indoor unit can be effectively guaranteed, the time required for the air conditioner to reach the set temperature can be reduced, the energy consumption of the air conditioner can be reduced, and the energy-saving and emission-reduction effect can be achieved.

[0005] Existing air conditioners use filters to trap air. To ensure the filters remain unobstructed and maintain a stable airflow, a scraper is used to clean them. However, with continuous airflow, the scraped dust can be re-spread due to the constant airflow. Furthermore, if water is used for rinsing, the unit must be shut down for cleaning to prevent liquid from entering the air conditioner and damaging internal electrical components. Therefore, the cleaning effect on an air conditioner in operation is limited. Summary of the Invention

[0006] In view of the above-mentioned prior art, the technical problem to be solved by the present invention is how to perform efficient filter cleaning operation and avoid the possibility of secondary dust generation when the outdoor unit is not running and it is not feasible to rinse with water.

[0007] To address the aforementioned issues, this invention provides an energy-saving positive pressure fresh air purification and oxygenation air conditioner, comprising an outdoor unit and an indoor unit. A filter screen is mounted on the surface of the outdoor unit, and a lead screw is mounted on the outer surface of the outdoor unit via a shaft bracket. A cleaning scraper frame, which is threaded onto the surface of the lead screw and conforms to the surface of the filter screen, is attached to the lead screw. The cleaning scraper frame includes an upper constraint part, a cleaning part, and a lower constraint part. The interior of the cleaning part is divided into a negative pressure chamber and a receiving chamber by a partition. A ventilation duct is installed through the interior of the negative pressure chamber. A branch pipe extending into the receiving chamber is mounted on the end surface of the ventilation duct, and the cross-sectional area of ​​the branch pipe is smaller than that of the ventilation duct. A baffle is slidably installed on one side of the cleaning section. A filter plate is installed on the surface of the baffle via a shaft. Springs are arranged on the surface of the baffle. An adjustment assembly for adjusting the opening angle of the filter plate during negative pressure suction is installed inside the receiving cavity. The adjustment assembly includes multiple rollers slidably connected to the surface of the baffle. The multiple rollers are connected in series by a cable.

[0008] In the aforementioned energy-saving positive pressure fresh air purification and oxygenation air conditioner, the ventilation pipes, branch pipes, and cleaning scraper frame work together to use the airflow from the outdoor unit itself as a power source to convert the airflow into a negative pressure suction effect, which sucks the scraped blockages into the collection chamber, thereby avoiding secondary dust problems.

[0009] As a further improvement of this application, the top of the baffle is provided with a groove, the inside of the groove is fitted with a toothed conditioner, the tail end of the baffle protrudes from the inside of the cleaning scraper frame, a drive motor is installed on the surface of the cleaning part, and the output end of the drive motor is connected to a gear that meshes with the toothed conditioner.

[0010] As a further improvement of this application, the surface of the baffle away from the drive motor is provided with a constraint groove for accommodating part of the cable, and the length of the constraint groove is less than half the length of the baffle. The cable is connected to the inner wall of the constraint groove near the drive motor by the guide wheel installed on the surface of the baffle. The cable from the guide wheel to the tail end is marked as the adjustment section. In the initial state, the adjustment section is in a diagonal state.

[0011] As a further improvement of this application, a rotating motor is installed inside the outdoor unit, and the output end of the rotating motor and the end of the lead screw are connected by a bevel gear set. A constraint slide rod located below the filter is mounted on the surface of the outdoor unit through a shaft bracket, and the cleaning scraper frame is slidably connected to the surface of the constraint slide rod.

[0012] As a further improvement of this application, a radiator is installed inside the indoor unit, and the outdoor unit is connected to the radiator through a high-pressure pipe and a low-pressure pipe. The outdoor unit and the indoor unit are connected through an air supply pipe. A wind deflector is installed on the surface of one side of the bracket, and the surface of the wind deflector near the outdoor unit is in contact with the end of the ventilation pipe.

[0013] As a further improvement of this application, the surface of the partition is provided with multiple grooves, and the two ends of the roller are equipped with constraint rods that are slidably connected inside the grooves. The bottom of the cleaning scraper is provided with a discharge pipe on the surface of which control valves are arranged.

[0014] As a further improvement of this application, the outdoor unit also includes a cleaning module for performing cleaning and squeezing operations and a monitoring module for monitoring the displacement status of the cleaning squeezing frame. The cleaning module is signal-connected to the rotating motor and the drive motor to control the movement of the cleaning squeezing frame and the opening and closing of the storage cavity. The monitoring module includes a displacement sensor installed on the cleaning squeezing frame and is signal-connected to the cleaning module.

[0015] As another improvement of this application, the upper constraint part and the lower constraint part are respectively sleeved on the surface of the lead screw and the constraint slide rod. The upper constraint part and the lower constraint part are in sliding contact with the middle cleaning part. A miniature electric push rod is installed inside the outdoor unit, and the power end of the miniature electric push rod is connected to a push block that is slidably connected to the surface of the outdoor unit.

[0016] In summary, this system utilizes the airflow from the outdoor unit itself as a power source. By designing ventilation and branch pipes inside the cleaning scraper frame, the airflow is converted into a negative pressure suction effect. This suction removes blockages from the filter screen and transfers them to the open collection chamber, thus improving the dust diffusion problem caused by traditional mechanical scraping. Furthermore, the coordinated design of the movable baffle, filter plate, and roller components allows for dynamic adjustment of the opening and closing of the collection chamber and the filter plate's opening angle. This significantly reduces the possibility of branch pipe blockage during suction. The impact of the filter plate against the spring components during reset further shakes and cleans the blockages adhering to the filter plate, ensuring the system's long-term reliability. Finally, the use of a miniature electric actuator prevents the cleaning unit from scraping during its return process, further reducing the possibility of secondary dust generation. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the first embodiment of this application; Figure 2 This is a schematic diagram of the composition of the cleaning scraper frame according to the first embodiment of this application; Figure 3 This is a partial internal schematic diagram of the cleaning section in the first and second embodiments of this application; Figure 4 For this application Figure 3 Enlarged diagram of point A in the diagram; Figure 5 This is a schematic diagram showing the installation of the drive motor, gear condition, and cable in the first and second embodiments of this application; Figure 6This is a schematic diagram of the branch pipe, spring component, and roller component according to the first and second embodiments of this application; Figure 7 This is a schematic diagram of the constraint groove, cable, and baffle in the first and second embodiments of this application; Figure 8 This is a schematic diagram showing the adjustment section and the symmetrical state of the adjustment section in the first and second embodiments of this application; Figure 9 This is a schematic diagram of the suction and transfer process in the first and second embodiments of this application; Figure 10 This is a diagram showing the state in which the baffle moves outward and the cable is retracted into the constraint groove in the first and second embodiments of this application. Figure 11 This is a schematic diagram of the structure of the miniature electric actuator, cleaning part, upper constraint part, and lower constraint part according to the second embodiment of this application.

[0018] Explanation of the labels in the diagram: 1. Outdoor unit; 2. Indoor unit; 3. Cleaning scraper frame; 4. Bevel gear set; 5. Lead screw; 6. Roller assembly; 7. Drive motor; 8. Cable; 9. Partition plate; 101. Filter screen assembly; 102. Wind deflector; 31. Ventilation duct; 32. Baffle; 33. Filter plate; 34. Spring assembly; 35. Branch pipe; 321. Gear condition; 322. Constraint groove; 61. Constraint rod; 10. Miniature electric actuator; 301. Upper constraint part; 302. Cleaning part; 303. Lower constraint part. Detailed Implementation

[0019] The two embodiments of this application will be described in detail below with reference to the accompanying drawings.

[0020] First implementation method: Figures 1-3 The diagram shows an energy-saving positive pressure fresh air purification and oxygenation air conditioner, including an outdoor unit 1 and an indoor unit 2. A filter screen 101 is installed on the surface of the outdoor unit 1. A lead screw 5 is installed on the outer surface of the outdoor unit 1 via a shaft bracket, and a cleaning scraper frame 3 that fits against the surface of the filter screen 101 is threaded onto the surface of the lead screw 5. The cleaning scraper frame 3 includes an upper constraint part 301, a cleaning part 302, and a lower constraint part 303. The interior of the cleaning part 302 is divided into a negative pressure chamber and a receiving chamber by a partition 9. A ventilation pipe 31 is installed through the interior of the negative pressure chamber. A branch pipe 35 extending to the receiving chamber is installed on the end surface of the ventilation pipe 31, and the cross-sectional area of ​​the branch pipe 35 is smaller than the cross-sectional area of ​​the ventilation pipe 31. A baffle 32 is slidably installed through one side of the cleaning part 302. A discharge pipe with a control valve arranged on its surface is installed through the bottom of the cleaning scraper frame 3.

[0021] Figure 5As shown, the top of the baffle 32 is provided with a groove, and a toothed condition 321 is installed inside the groove. The tail end of the baffle 32 protrudes from the inside of the cleaning scraper frame 3. A drive motor 7 is installed on the surface of the cleaning part 302, and a gear that meshes with the toothed condition 321 is connected to the output end of the drive motor 7.

[0022] Specifically, before cleaning the surface of the filter element 101, the drive motor 7 is started, which moves the gear conditioner 321 and causes the baffle 32 to extend outward, opening the storage cavity. Then, the rotation motor (installed inside the outdoor unit 1, not shown in the figure) and the bevel gear set 4 are used to rotate the lead screw 5, which in turn moves the cleaning scraper frame 3 on the surface of the lead screw 5 along the surface of the filter element 101, thereby achieving the corresponding scraping operation.

[0023] Figure 9 As shown, when scraping away the blockage on the surface of the filter element 101, the outdoor unit of the air conditioner is in normal working condition, which will generate a suction effect, so that the surface of the filter element 101 is in an air intake state. At this time, the air force passing through the filter element 101 will accelerate when passing through the ventilation pipe 31 (the ventilation pipe 31 runs through the interior of the negative pressure chamber) because the cross-section it passes through is smaller (compared to the original cross-section of the filter element 101). Therefore, a suction effect is formed at the branch pipe 35 (the port of the branch pipe 35 is provided with a waterproof and breathable plate to prevent material from entering the interior of the branch pipe 35 during suction), so that the blockage accumulated at the opening of the cleaning frame 3 is transferred.

[0024] Then, open the control valve and use the discharge pipe to transfer the blockage accumulated in the collection chamber.

[0025] The outdoor unit 1 is equipped with a rotating motor, and the output end of the rotating motor and the end of the lead screw 5 are connected by a bevel gear set 4. The surface of the outdoor unit 1 is equipped with a constraint slide rod located below the filter screen 101 via a shaft bracket, and the cleaning scraper frame 3 is slidably connected to the surface of the constraint slide rod.

[0026] Specifically, the bevel gear set 4 includes two bevel gears, which are respectively sleeved on the output end of the rotary motor and the end of the lead screw 5. Therefore, when the rotary motor starts, it can indirectly drive the lead screw 5 to rotate.

[0027] The indoor unit 2 is equipped with a radiator. The outdoor unit 1 is connected to the radiator through a high-pressure pipe and a low-pressure pipe. The outdoor unit 1 and the indoor unit 2 are connected through an air supply pipe. A wind deflector 102 is installed on the surface of one side of the bracket, and the wind deflector 102 is close to the surface of the outdoor unit 1 and fits against the end of the ventilation pipe 31.

[0028] Specifically, when this air conditioner is working, the outdoor unit 1 (which is equipped with a fan, compressor and condenser pipe, and has the same technical principle as the outdoor unit of the air conditioner in the prior art) and the indoor unit 2 work together to achieve basic cooling and heating operations. It also supplements some gas through the gas supply pipe, transfers it into the indoor unit 2, and enters the room through the air outlet of the indoor unit 2. While achieving fresh air treatment, it can also use the newly supplemented outdoor air to oxygenate the room.

[0029] When the cleaning scraper frame 3 moves to the end of the lead screw 5, the air inlet of the ventilation pipe 31 is blocked by the baffle plate 102, thereby preventing the suction effect inside the cleaning scraper frame 3 and avoiding the transfer of blockages in the collection cavity. At this time, the rotating motor stops, so that the blockages in the collection cavity are stably collected. After that, the cleaning scraper frame 3 starts to return after being released through the discharge pipe. After cleaning is completed, the cleaning scraper frame 3 is moved to outside the effective area of ​​the filter screen 101 and will not block the wind.

[0030] Second implementation method: Figures 3-6 As shown, a filter plate 33 is mounted on the surface of the partition 9 via a shaft, and a spring member 34 is arranged on the surface of the partition 9. An adjustment assembly for adjusting the opening angle of the filter plate 33 during negative pressure suction is installed inside the receiving cavity. The adjustment assembly includes multiple roller members 6 that are slidably connected to the surface of the partition 9, and the multiple roller members 6 are connected in series by a cable 8.

[0031] Based on the first embodiment, additional structures such as filter plate 33, spring 34, roller 6 and cable 8 are added, mainly to prevent the waterproof and breathable plate from being blocked during the suction process.

[0032] Specifically, during the suction process, most of the blockages accumulated on the surface of the cleaning scraper frame 3 are suctioned and transferred to the surface of the tilted and open filter plate 33 (because the branch pipe 35 is located in the middle and upper position after the filter plate 33 is opened). This allows space to be left in the opening area of ​​the cleaning scraper frame 3, while also reducing the possibility of blockages sticking to and blocking the air vent plate, ensuring that the scraping and transfer operation is carried out smoothly.

[0033] During the outward extension of the baffle 32, the cable 8 (made of non-elastic wear-resistant material) gradually changes from an initial oblique state to a straight state as the baffle 32 moves outward (at this time, the roller 6 will slide down under its own gravity). It then returns to an oblique state. During this process, the roller 6 begins to move upward. As the end of the cable 8 connected to the constraint groove 322 gradually extends out of the cleaning scraper frame 3, the tail end of the cable 8 is gradually fastened inside the constraint groove 322 (e.g., ...). Figure 10As shown), it continues to drive the cable 8 to lift, which in turn lifts the roller 6 and pushes open the filter plate 33, which originally had a smaller opening angle, so that the adsorbed blockage can adhere to the surface of the filter plate 33.

[0034] After the surface scraping operation of the filter screen 101 is completed, the receiving cavity is closed by the reset of the baffle 32. At the same time, the pull cable 8 is reset, which drives the roller 6 to descend, reset, and continue to descend, so that the filter plate 33 can fall naturally under the action of gravity. This impacts the spring 34 (the roller 6 is located on one side of the spring 34, so it will not contact the spring 34 when the roller 6 falls). This can clean the blockage that was originally adsorbed and attached to the surface of the filter plate 33. Since each branch pipe 35 is located on one side of the opened filter plate 33, the possibility of the sucked blockage entering the branch pipe 35 can be further reduced.

[0035] Figures 7-8 As shown, the surface of the baffle 32 facing away from the drive motor 7 is provided with a constraint groove 322 for accommodating part of the cable 8, and the length of the constraint groove 322 is less than half the length of the baffle 32. The cable 8 is connected to the inner wall of the constraint groove 322 near the drive motor 7 by the guide wheel installed on the surface of the partition 9. The cable 8 from the guide wheel to the tail end is marked as the adjustment section. In the initial state, the adjustment section is in the oblique line state.

[0036] Specifically, the length design of the cable 8 ensures that in the initial state (that is, when the baffle 32 closes the receiving cavity, the position where the cable 8 contacts the guide wheel and the position where the end of the constraint groove 322 connects to the oblique line, and the roller 6 is in the lower position in the chute, and the opening angle of the filter plate 33 is not large), after moving to a position symmetrical to the oblique line, as the baffle 32 continues to move outward, it can stretch the cable 8, causing the roller 6 to gradually move upward, thereby gradually increasing the opening angle of the filter plate 33.

[0037] Figure 4 As shown, the surface of the partition 9 is provided with multiple grooves, and the two ends of the roller 6 are each equipped with a constraint rod 61 that is slidably connected to the inside of the groove.

[0038] Specifically, the movement of the roller 6 can be constrained by the cooperation of the slide and the constraint rod 61, thereby providing operational support for the change of the opening angle of the filter plate 33.

[0039] The outdoor unit 1 also includes a cleaning module for performing cleaning and scraping operations and a monitoring module for monitoring the displacement status of the cleaning scraper frame 3. The cleaning module is connected to the rotating motor and the drive motor 7 to control the movement of the cleaning scraper frame 3 and the opening and closing of the storage cavity. The monitoring module includes a displacement sensor installed on the cleaning scraper frame 3 and is connected to the cleaning module.

[0040] Specifically, in the above process, a displacement sensor (the specific model is selected according to actual needs and will not be described in detail here) is used to monitor the displacement distance of the cleaning scraper frame 3 to determine whether the cleaning scraper frame 3 has completed the scraping and transfer operation of the blockage on the surface of the filter screen 101. After the cleaning scraper frame 3 completes the corresponding scraping and transfer, the drive motor 7 and the rotation motor are started to drive the baffle 32 to reset, close the storage cavity and make the cleaning scraper frame 3 return.

[0041] Figure 11 As shown, the upper constraint part 301 and the lower constraint part 303 are respectively sleeved on the surface of the lead screw 5 and the constraint slide rod. Both the upper constraint part 301 and the lower constraint part 303 are in sliding contact with the middle cleaning part 302. A miniature electric push rod 10 is installed inside the outdoor unit 1, and the power end of the miniature electric push rod 10 is connected to a push block that is slidably connected to the surface of the outdoor unit 1.

[0042] Specifically, during the return process, as the cleaning scraper frame 3 moves to the left to scrape away and transfer blockages, and the ventilation pipe 31 is also in a state of continuous air intake, a thin layer of blockage may form on the surface of the filter element 101 after it has just been scraped and cleaned. At this time, the cleaning scraper frame 3 (that is, the cleaning part 302, so the upper constraint part 301 and the lower constraint part 303 are both outside the effective area of ​​the filter element 101, and the effective working part during the scraping and transfer operation is the cleaning part 302) may continue to scrape it during the return. However, due to the separation of the receiving cavity, it cannot perform the corresponding transfer operation. Therefore, in order to avoid the thin blockage layer being scraped away during the return process and causing secondary dust problems that exist in the traditional scraping operation, the cleaning part 302 can be isolated first so that it will not scrape the surface of the filter element 101 during the return process. Since the blockage layer is controllable at this time, its blocking effect on the filter element 101 is limited. Not scraping and cleaning during the return process of the cleaning part 302 will not affect the air intake operation.

[0043] At the moment when the cleaning section 302 starts to reset, the miniature electric push rod 10 is activated, causing the push block to protrude from the surface of the outdoor unit 1. Since the push block is arranged in the area of ​​the cleaning section 302, the cleaning section 302 is forced to generate relative displacement with the upper constraint part 301 and the lower constraint part 303 (since the lower constraint part 303 is also slidably connected to the discharge pipe, the discharge pipe slides synchronously when the cleaning section 302 protrudes), thereby creating a gap between the cleaning section 302 and the filter screen 101, avoiding contact with the surface of the filter screen 101 during the return process.

[0044] When moving to the left, the miniature electric actuator 10 retracts and, under the action of the airflow, brings the cleaning part 302, the upper constraint part 301, and the lower constraint part 303 into the same plane.

[0045] In light of current practical needs, the above-described embodiments adopted in this application are not limited to these. Any changes made within the scope of knowledge possessed by those skilled in the art without departing from the concept of this application still fall within the protection scope of this invention.

Claims

1. An energy-saving positive pressure fresh air purification and oxygenation air conditioner, comprising an outdoor unit (1) and an indoor unit (2), wherein a filter element (101) is installed on the surface of the outdoor unit (1), characterized in that: The outer surface of the outdoor unit (1) is fitted with a lead screw (5) via a shaft bracket, and the surface of the lead screw (5) is threaded with a cleaning scraper frame (3) that fits against the surface of the filter screen (101). The cleaning scraper frame (3) includes an upper constraint part (301), a cleaning part (302), and a lower constraint part (303). The interior of the cleaning part (302) is divided into a negative pressure chamber and a receiving chamber by a partition (9). A ventilation pipe (31) is installed through the interior of the negative pressure chamber. A branch pipe (35) extending to the receiving chamber is installed on the end surface of the ventilation pipe (31), and the cross-sectional area of ​​the branch pipe (35) is smaller than that of the ventilation pipe (31). A baffle (32) is slidably installed on one side of the cleaning section (302). A filter plate (33) is installed on the surface of the partition (9) via a shaft. A spring (34) is arranged on the surface of the partition (9). An adjustment assembly for adjusting the opening angle of the filter plate (33) during negative pressure suction is installed inside the receiving cavity. The adjustment assembly includes multiple rollers (6) slidably connected to the surface of the partition (9). The multiple rollers (6) are connected in series by a cable (8).

2. The energy-saving positive pressure fresh air purification and oxygenation air conditioner according to claim 1, characterized in that: The top of the baffle (32) is provided with a groove, and a toothed condition (321) is installed inside the groove. The tail end of the baffle (32) protrudes from the inside of the cleaning scraper frame (3). A drive motor (7) is installed on the surface of the cleaning part (302), and the output end of the drive motor (7) is connected to a gear that meshes with the toothed condition (321).

3. The energy-saving positive pressure fresh air purification and oxygenation air conditioner according to claim 2, characterized in that: The baffle (32) has a constraint groove (322) on the surface of the end facing away from the drive motor (7) for accommodating part of the cable (8), and the length of the constraint groove (322) is less than half the length of the baffle (32). The cable (8) is connected to the inner wall of the constraint groove (322) near the drive motor (7) by the guide wheel installed on the surface of the partition (9). The cable (8) is marked as the adjustment section from the guide wheel to the tail end. In the initial state, the adjustment section is in the oblique line state.

4. The energy-saving positive pressure fresh air purification and oxygenation air conditioner according to claim 1, characterized in that: The outdoor unit (1) is equipped with a rotating motor, and the output end of the rotating motor and the end of the lead screw (5) are connected by a bevel gear set (4). The surface of the outdoor unit (1) is equipped with a constraint slide rod located below the filter screen (101) through a shaft frame, and the cleaning scraper frame (3) is slidably connected to the surface of the constraint slide rod.

5. An energy-saving positive pressure fresh air purification and oxygenation air conditioner according to claim 1, characterized in that: The indoor unit (2) is equipped with a radiator. The outdoor unit (1) is connected to the radiator through a high-pressure pipe and a low-pressure pipe. The outdoor unit (1) and the indoor unit (2) are connected through an air supply pipe. A baffle plate (102) is installed on the surface of one side of the shaft frame. The baffle plate (102) is close to the surface of the outdoor unit (1) and fits against the end of the ventilation pipe (31).

6. The energy-saving positive pressure fresh air purification and oxygenation air conditioner according to claim 1, characterized in that: The surface of the partition (9) is provided with multiple grooves, and the two ends of the roller (6) are each equipped with a constraint rod (61) that is slidably connected inside the groove. The bottom of the cleaning scraper (3) is provided with a discharge pipe with a control valve arranged on its surface.

7. An energy-saving positive pressure fresh air purification and oxygenation air conditioner according to claim 1, characterized in that: The outdoor unit (1) also includes a cleaning module for performing cleaning and scraping operations and a monitoring module for monitoring the displacement status of the cleaning scraper frame (3). The cleaning module is connected to the rotating motor and the drive motor (7) to control the movement of the cleaning scraper frame (3) and the opening and closing of the storage cavity. The monitoring module includes a displacement sensor installed on the cleaning scraper frame (3) and the displacement sensor is connected to the cleaning module.

8. An energy-saving positive pressure fresh air purification and oxygenation air conditioner according to claim 4, characterized in that: The upper constraint part (301) and the lower constraint part (303) are respectively sleeved on the surface of the lead screw (5) and the constraint slide rod. The upper constraint part (301) and the lower constraint part (303) are in sliding contact with the middle cleaning part (302). The outdoor unit (1) is equipped with a miniature electric push rod (10), and the power end of the miniature electric push rod (10) is connected to a push block that is slidably connected to the surface of the outdoor unit (1).

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