Air intake structure and air conditioner

Abstract

The present application provides an air inlet structure and an air conditioner. The air inlet structure includes a housing (1), a closing panel (2), and an air inlet assembly. A ventilation opening (3) is provided on the housing (1). The closing panel (2) is arranged at the ventilation opening (3). The closing panel (2) has a first position where the ventilation opening (3) is completely closed and a second position where the ventilation opening (3) is opened. When the closing panel (2) is in the second position, an air inlet (4) is formed between the closing panel (2) and the housing (1). The air inlet assembly is arranged at the air inlet (4). According to the air inlet structure of the present application, it can effectively prevent the dust accumulated when the air conditioner is turned off from entering the air conditioner through the air inlet when the air conditioner is turned on, and improve the air outlet quality of the air conditioner.

Description

Technical Field

[0001] The present application relates to the technical field of air conditioning, and particularly relates to an air inlet structure and an air conditioner. Background Art

[0002] Currently, there are problems of dust accumulation and bacteria growth on the filter screen of wall-mounted air conditioners on the market, and generally users do not have the habit of frequently cleaning the filter screen. This situation results in unclean air sent out by the air conditioner, affecting people's health.

[0003] A solution has been proposed in the prior art, which adopts the method of setting louvers at the air inlet, so that the louvers close when the air conditioner is turned off, thereby preventing dust from falling from the air inlet onto the filter screen when the air conditioner is turned off. However, after the air conditioner has not been operated for a long time, dust is likely to accumulate on the louvers. When the air conditioner is turned on, the louvers open, and the dust on the louvers will fall onto the filter screen through the air inlet, affecting the air outlet quality of the air conditioner. Summary of the Invention

[0004] Therefore, the technical problem to be solved by the present application is to provide an air inlet structure and an air conditioner, which can effectively prevent the accumulated dust when the air conditioner is turned off from entering the air conditioner through the air inlet when the air conditioner is turned on, and improve the air outlet quality of the air conditioner.

[0005] To solve the above problems, the present application provides an air inlet structure, including a housing, a closing panel and an air inlet assembly. A ventilation opening is provided on the housing, the closing panel is arranged at the ventilation opening, the closing panel has a first position for completely closing the ventilation opening and a second position for opening the ventilation opening. When the closing panel is in the second position, an air inlet is formed between the closing panel and the housing, and the air inlet assembly is arranged at the air inlet.

[0006] Preferably, the closing panel is rotatably arranged at the ventilation opening, one end of the air inlet assembly is connected to the rotating side of the closing panel, and the other end is connected to the housing.

[0007] Preferably, the air inlet assembly includes a filter screen, one end of the filter screen is connected to the closing panel, and the other end is slidably arranged on the housing.

[0008] Preferably, a slide rail is provided on the housing, and the other end of the filter screen is slidably arranged in the slide rail.

[0009] Preferably, a counterweight block is arranged at the end of the filter screen located in the slide rail, the counterweight block can be slidably arranged in the slide rail, and can pull the filter screen into the slide rail when the closing panel is in the first position.

[0010] Preferably, the air inlet assembly further includes an air inlet frame, one end of the air inlet frame is hinged to the closing panel, the other end is slidably arranged in the slide rail, and the filter screen is installed on the air inlet frame.

[0011] Preferably, the air inlet structure further includes a driving mechanism, which is drivingly connected to the closing panel, drives the closing panel to move between a first position and a second position, and drives the filter net to move by the closing panel.

[0012] Preferably, the driving mechanism directly drives the closing panel by a motor; alternatively, the driving mechanism drives the closing panel by a motor through a link mechanism; alternatively, the driving mechanism drives the closing panel by a motor through a reduction gear mechanism.

[0013] Preferably, the slide rail is linear or curved.

[0014] Preferably, a cleaning mechanism is arranged on the sliding path of the filter net. The cleaning mechanism is arranged corresponding to the filter net and cleans the filter net.

[0015] Preferably, when a slide rail is arranged on the housing, the cleaning mechanism is arranged at one end of the slide rail close to the closing panel.

[0016] Preferably, the cleaning mechanism includes a cleaning brush, and the cleaning brush is arranged at least on the air inlet side of the filter net.

[0017] Preferably, cleaning brushes are respectively arranged on the air inlet side and the air outlet side of the filter net, and the cleaning brushes are elastically pressed against the surface of the filter net.

[0018] Preferably, the included angle between the orientation of the cleaning brush and the direction in which the filter net slides towards the closing panel is an acute angle.

[0019] Preferably, when a slide rail is arranged on the housing, the cleaning brushes on both sides of the filter net clamp the filter net when the filter net slides out of the slide rail, and release the filter net when the filter net slides into the slide rail.

[0020] Preferably, a slider is slidably arranged on the housing. The relative positions of the cleaning brush on the air inlet side of the filter net and the cleaning brush on the air outlet side of the filter net are fixed, and the cleaning brushes on the air inlet side and the air outlet side of the filter net are both arranged on the slider, and the slider can adjust its own sliding position according to the different sliding positions of the filter net.

[0021] Preferably, the air inlet assembly includes a filter net. The filter net is a flexible structure. One end of the filter net can be fixedly connected to the housing, and the other end is fixedly connected to the closing panel. When the closing panel is closed, the filter net folds up and is located inside the closing panel. When the closing panel is opened, the filter net unfolds as the closing panel is pulled.

[0022] According to another aspect of the present application, an air conditioner is provided, which includes an air inlet structure, and the air inlet structure is the above-mentioned air inlet structure.

[0023] Preferably, when the air inlet structure includes a cleaning mechanism, a dust collection device is arranged below the cleaning mechanism.

[0024] Preferably, a water receiving tray is arranged inside the air conditioner. The water receiving tray is arranged below the cleaning mechanism and forms a dust collecting device.

[0025] The air inlet structure provided in this application includes a housing, a closing panel, and an air inlet assembly. A ventilation opening is provided on the housing. The closing panel is arranged at the ventilation opening. The closing panel has a first position where the ventilation opening is completely closed and a second position where the ventilation opening is opened. When the closing panel is in the second position, an air inlet is formed between the closing panel and the housing. The air inlet assembly is arranged at the air inlet. This air inlet structure is provided with a closing panel at the ventilation opening of the housing, which can completely close the ventilation opening by using the closing panel when the air conditioner is turned off, avoiding dust from entering the air conditioner through the ventilation opening. When the air conditioner is turned on, the closing panel can be opened as a whole, so that the closing panel is in the second position where the ventilation opening is opened. At this time, the dust on the closing panel moves away from the ventilation opening together with the closing panel. Therefore, it can effectively prevent the accumulated dust when the air conditioner is turned off from entering the air conditioner through the air inlet when the air conditioner is turned on, improving the air outlet quality of the air conditioner. Since the air inlet assembly is arranged at the air inlet formed between the housing and the closing panel after the closing panel opens the ventilation opening, the closing panel can also effectively protect the air inlet assembly, avoiding dust from falling on the air inlet assembly when the air conditioner is turned off, ensuring the cleanliness of the air inlet assembly, and further ensuring the air outlet quality of the air conditioner. Brief Description of the Drawings

[0026] Figure 1 is a schematic structural diagram of the air inlet structure of the embodiment of this application in the open state;

[0027] Figure 2 is a schematic structural diagram of the air inlet structure of the embodiment of this application in the closed state;

[0028] Figure 3 is a process diagram of the opening of the closing panel of the air inlet structure of the embodiment of this application;

[0029] Figure 4 is a movement structure diagram of the air inlet structure of the embodiment of this application when the filter screen slides out of the slide rail;

[0030] Figure 5 is a movement structure diagram of the air inlet structure of the embodiment of this application when the filter screen slides into the slide rail.

[0031] The reference numerals are shown as:

[0032] 1. Housing; 2. Closing panel; 3. Ventilation opening; 4. Air inlet; 5. Filter screen; 6. Slide rail; 7. Air inlet frame; 8. Cleaning brush; 9. Slide block; 10. Water receiving tray. Detailed Description of the Embodiment

[0033] Refer to in combination Figures 1 to 5As shown, according to an embodiment of the present application, the air intake structure includes a housing 1, a closing panel 2, and an air intake assembly. A ventilation opening 3 is provided on the housing 1. The closing panel 2 is arranged at the ventilation opening 3. The closing panel 2 has a first position where the ventilation opening 3 is completely closed and a second position where the ventilation opening 3 is opened. When the closing panel 2 is in the second position, an air inlet 4 is formed between the closing panel 2 and the housing 1. The air intake assembly is arranged at the air inlet 4.

[0034] The air intake structure is provided with a closing panel 2 at the ventilation opening 3 of the housing 1, which can completely close the ventilation opening 3. Thus, when the air conditioner is turned off, the ventilation opening 3 can be completely closed by the closing panel 2 to prevent dust from entering the air conditioner through the ventilation opening 3. When the air conditioner is turned on, the closing panel 2 can be opened as a whole, so that the closing panel 2 is in the second position where the ventilation opening 3 is opened. At this time, the dust on the closing panel 2 moves away from the ventilation opening 3 together with the closing panel 2. Therefore, it can effectively prevent the accumulated dust when the air conditioner is turned off from entering the air conditioner through the air inlet 4 when the air conditioner is turned on, improving the air outlet quality of the air conditioner. Since the air intake assembly is arranged at the air inlet 4 formed between the housing 1 and the closing panel 2 after the closing panel 2 opens the ventilation opening 3, the closing panel 2 can also effectively protect the air intake assembly, preventing dust from falling on the air intake assembly when the air conditioner is turned off, ensuring the cleanliness of the air intake assembly, and further ensuring the air outlet quality of the air conditioner.

[0035] The closing panel 2 is rotatably arranged at the ventilation opening 3. One end of the air intake assembly is connected to the rotating side of the closing panel 2, and the other end is connected to the housing 1. One side of the closing panel 2 is rotatably connected to the housing 1 through a rotating shaft, and the other side is away from the rotating shaft, forming a rotating side. One end of the air intake assembly is connected to this rotating side and moves with the rotation of the rotating side. The closing panel 2 is arranged on the housing 1 in a rotating manner, so that when the closing panel 2 is opened, the dust and the like on the surface of the closing panel can slide towards one side of the housing, and under the blocking action of the closing panel 2, they fall outside the housing in a direction away from the air inlet 4. Thus, the accumulated dust on the closing panel 2 in the off state of the air conditioner cannot enter the housing 1 from the air inlet 4, ensuring the cleanliness of the air intake assembly, and at the same time ensuring the cleanliness of the intake air and the air outlet quality of the air conditioner.

[0036] The closing panel 2 can also be arranged at the ventilation opening 3 in a sliding manner, or in other ways.

[0037] When the air inlet assembly is inside the housing 1 and blocked by the closing panel 2 when the closing panel 2 closes the ventilation opening 3, it will not come into contact with dust from the outside world. When the closing panel 2 opens the ventilation opening 3, it can be opened at the air inlet 4 formed between the closing panel 2 and the housing 1, so that the air inlet 4 is blocked by the air inlet assembly, so that the incoming air needs to pass through the filtration of the air inlet assembly, effectively preventing dust and other impurities from entering the housing 1 through the air inlet 4 with the air, and achieving an effective air inlet filtration effect.

[0038] In this embodiment, the air inlet assembly includes a filter net 5. One end of the filter net 5 is connected to the closing panel 2, and the other end is slidably arranged on the housing 1. Since one end of the filter net is connected to the closing panel 2 and the other end is slidably arranged on the housing 1, it can move accordingly with the movement of the closing panel 2, so that the filter net 5 can adjust its own position with the change of the position of the closing panel 2. When the closing panel 2 opens the ventilation opening 3, it can cover the entire air inlet 4 to filter the air entering through the air inlet 4. When the closing panel 2 closes the ventilation opening 3, it can slide into the housing 1 and be covered by the closing panel 2 to prevent dust from falling on the filter net 5.

[0039] In other embodiments, the filter net 5 can also adopt a flexible structure. At this time, one end of the filter net 5 can be fixedly connected to the housing 1, and the other end can be fixedly connected to the closing panel 2. When the closing panel 2 closes, the filter net 5 folds up and is located inside the closing panel 2. When the closing panel 2 opens, with the pulling of the closing panel 2, the filter net 5 unfolds and covers the air inlet 4 to filter the incoming air at the air inlet 4.

[0040] A slide rail 6 is provided on the housing 1, and the other end of the filter net 5 is slidably arranged in the slide rail 6. Using the slide rail 6 to guide the sliding of the filter net 5 can ensure that the filter net 5 is received in a preset position according to the guidance of the slide rail 6, avoiding obstacles or interference to other components inside the housing 1 after the filter net 5 is received in the housing 1, and improving the rationality and reliability of the structural arrangement of the filter net 5 inside the housing 1.

[0041] In one embodiment, a counterweight is provided at one end of the filter screen 5 located within the slide rail 6. The counterweight is slidably disposed within the slide rail 6 and can pull the filter screen 5 into the slide rail 6 when the closing panel 2 is in the first position, and stretch the filter screen 5 when the closing panel 2 is in the second position, so that the filter screen 5 unfolds at the air inlet 4. In this embodiment, when the closing panel 2 is opened, it drives one end of the filter screen 5 to move upward under the driving action of the driving mechanism. At this time, under the combined action of the gravity of the counterweight and the driving force of the driving mechanism, the filter screen 5 is pulled open and can always be in an unfolded state, forming a good filtering effect at the air inlet 4. When the closing panel 2 is closed, under the action of the gravity of the counterweight, along the guiding action of the slide rail 6, the filter screen 5 is pulled into the housing 1. At this time, the counterweight not only provides driving for the sliding of the filter screen 5, but also can ensure good guiding for the filter screen 5 by using the sliding fit with the slide rail 6.

[0042] When the closing panel 2 flips between the first position and the second position, by adjusting the closing panel 2 to flip at different angles, the closing panel 2 is in different flipping positions, so that the size of the air inlet 4 formed between the closing panel 2 and the housing 1 can be conveniently adjusted, and thus the air intake volume of the air intake structure can be conveniently adjusted.

[0043] In this embodiment, the air intake assembly further includes an air intake frame 7. One end of the air intake frame 7 is hinged to the closing panel 2, and the other end is slidably disposed within the slide rail 6. The filter screen 5 is installed on the air intake frame 7. The air intake frame 7 has a certain rigidity, which can ensure that the filter screen 5 is in an unfolded state and will not deform, thereby ensuring the stability of the unfolded structure of the filter screen 5 and the filtering effect on the incoming air. The air intake frame can be a plastic frame or a metal frame, etc. To ensure the sliding fit effect between the air intake frame 7 and the slide rail 6, guide blocks can be provided at the bottom of the air intake frame 7. The structure of the guide blocks matches the structure of the slide rail 6, and good sliding guidance can be formed.

[0044] The air intake structure further includes a driving mechanism. The driving mechanism is drivingly connected to the closing panel 2, drives the closing panel 2 to move between the first position and the second position, and drives the filter screen 5 to move by the closing panel 2. In this embodiment, the driving force for the movement of the air intake assembly is provided by the closing panel 2. That is, the driving mechanism that drives the closing panel 2 to move also provides a driving force to the air intake assembly through the closing panel 2, and thus the position of the air intake assembly can be conveniently adjusted.

[0045] The driving mechanism directly drives the closing panel 2 with a motor; or, the driving mechanism drives the closing panel 2 with a motor through a link mechanism; or, the driving mechanism drives the closing panel 2 with a motor through a reduction gear mechanism. The driving mechanism can also adopt other structural forms as long as it can effectively adjust the position of the closing panel 2.

[0046] The slide rail 6 is linear or curved, and can be specifically selected according to needs.

[0047] A cleaning mechanism is provided on the sliding path of the filter net 5. The cleaning mechanism is arranged corresponding to the filter net 5 and cleans the filter net 5. The cleaning mechanism cooperates with the filter net 5 and can clean the filter net 5 during the process of the filter net 5 sliding into the slide rail 6 or sliding out of the slide rail 6, so as to achieve the purpose of cleaning the dust on the filter net 5, enabling the filter net to always remain clean and ensuring that the air sent out by the air conditioner remains fresh.

[0048] When the slide rail 6 is provided on the housing 1, the cleaning mechanism is arranged at one end of the slide rail 6 close to the closing panel 2, so as to ensure that the cleaning mechanism can clean the filter net 5 more comprehensively and ensure the cleaning effect on the filter net 5.

[0049] In this embodiment, the cleaning mechanism includes a cleaning brush 8. There is at least one cleaning brush 8, which is arranged on the air inlet side of the filter net 5. See Figure 1 As shown, the arrow direction in the figure indicates the air inlet direction. Since the air conditioner is in the shutdown state, the dust is completely blocked by the closing panel 2, so the dust cannot enter the air inlet 4 and fall on the filter net 5. Only when the air conditioner is in the startup state and the air enters the housing 1 through the air inlet 4, the dust will pass through the filter net 5 along with the air and stick to the filter net 5. Therefore, for the filter net 5, the dust is mainly concentrated on the air inlet side of the filter net 5. As long as the air inlet side of the filter net 5 can be effectively cleaned, the overall cleaning effect of the filter net 5 can be ensured.

[0050] Preferably, cleaning brushes 8 are respectively arranged on the air inlet side and the air outlet side of the filter net 5, and the cleaning brushes 8 are elastically pressed against the surface of the filter net 5. By respectively arranging cleaning brushes 8 on the air inlet side and the air outlet side of the filter net 5, not only can the filter net 5 be cleaned from both sides simultaneously during the cleaning process of the filter net 5, further improving the cleaning effect on the filter net 5, but also the cleaning brushes 8 on both sides of the filter net 5 can simultaneously provide a cleaning force on the filter net 5, making the cleaning forces on both sides of the filter net 5 balanced, ensuring the contact of the cleaning brushes 8 on both sides of the filter net 5 with the filter net 5, and further ensuring the cleaning effect of the cleaning brushes 8 on the filter net 5. The cleaning brushes 8 are elastically pressed against the surface of the filter net 5, and the elastic pressing force of the cleaning brushes 8 can be used to ensure the fitting effect between the cleaning brushes 8 and the filter net 5, and further ensure the cleaning effect of the cleaning brushes 8 on the filter net 5.

[0051] Preferably, an acute angle is formed between the orientation of the cleaning brush 8 and the direction in which the filter net 5 slides towards the closing panel 2. When the filter net 5 moves towards the closing panel 2, the orientation of the cleaning brush 8 is opposite to the moving direction of the filter net 5, providing a relatively large resistance to the filter net 5, effectively removing dust and other impurities on the filter net 5, and causing the removed dust and other impurities to fall below the cleaning brush 8 and then into the dust collection device, so that the filter net 5 slid out from the slide rail 6 can be effectively cleaned, and thus the filter net 5 can be kept clean.

[0052] When the slide rail 6 is provided on the housing 1, the cleaning brushes 8 on both sides of the filter net 5 clamp the filter net 5 when the filter net 5 slides out of the slide rail 6, so as to ensure the cleaning effect on the filter net 5, and loosen the filter net 5 when the filter net 5 slides into the slide rail 6, so as to ensure that the filter net 5 can smoothly enter the slide rail 6 and the closing panel 2 can be smoothly closed.

[0053] Preferably, a slider 9 is provided on the housing 1. The relative positions of the cleaning brush 8 on the air inlet side of the filter net 5 and the cleaning brush 8 on the air outlet side of the filter net 5 are fixed, and the cleaning brushes 8 on the air inlet side and the air outlet side of the filter net 5 are both provided on the slider 9. The slider 9 can adjust its own sliding position according to the different sliding positions of the filter net 5, so that the sliding position of the cleaning brush 8 on the slider 9 can be adapted to the sliding position of the filter net 5 and always keep in close contact with the filter net 5 to ensure the cleaning effect on the filter net 5. During the process of the filter net 5 sliding along the slide rail 6, if the positions of the two cleaning brushes 8 relative to the housing 1 are fixed, with the different sliding positions of the filter net 5, the inclination angle of the filter net 5 relative to the slide rail is also different. During the process of the filter net 5 sliding out of the slide rail 6, the longer the filter net 5 slides out, the larger the inclination angle relative to the slide rail 6, the closer the distance to the cleaning brush 8 on the air outlet side of the filter net 5, and the greater the contact force, while the farther the distance to the cleaning brush 8 on the air inlet side of the filter net 5, and it may even be out of contact, which will result in different cleaning forces on both sides of the filter net 5, and the cleaning effect on the air inlet side of the filter net is poor and it is difficult to achieve a satisfactory result. The above solution is precisely to solve this problem.

[0054] In this embodiment, there are two sliders 9, which are respectively located on the air inlet side and the air outlet side of the filter net 5. The two sliders 9 can be fixedly connected together through a connecting rod, so as to ensure the constant relative position between the two sliders 9, and further ensure the constant relative position of the two cleaning brushes 8 arranged on the two sliders 9 and located on both sides of the filter net 5. In this way, during the movement of the filter net 5 along the slide rail 6, when the filter net 5 is in different sliding positions, the horizontal position of the filter net 5 at the position where the cleaning brush 8 is located will change. Under the action of the movement of the filter net 5, the cleaning brush 8 will also drive the slider 9 to slide along with the movement of the filter net 5, so that the filter net 5 can be exactly located between the two cleaning brushes 8, ensuring that the cleaning brushes 8 on both sides of the filter net 5 always keep in contact with the filter net 5, and avoiding the problem of unbalanced force between the two cleaning brushes 8 and the filter net 5, resulting in the problem that one of the cleaning brushes 8 cannot be in contact with the filter net 5.

[0055] According to an embodiment of the present application, the air conditioner includes an air inlet structure, and the air inlet structure is the above-mentioned air inlet structure.

[0056] When the air inlet structure includes a cleaning mechanism, a dust collection device is arranged below the cleaning mechanism.

[0057] A water receiving tray 10 is arranged inside the air conditioner. The water receiving tray 10 is arranged below the cleaning mechanism and forms a dust collection device. In this embodiment, the water receiving tray 10 is used as the dust collection device at the same time. The dust cleaned from the filter net 5 by the cleaning brush 8 will fall into the water receiving tray, and then be discharged to the outside of the air conditioner together with the condensed water in the water receiving tray, realizing the cleaning of the filter net 5 and the discharge of dust.

[0058] Combined with Figures 3 to 5 As shown, since one side of the closing panel 2 is hinged to the housing 1 and can rotate relative to the housing 1, and one end of the air inlet frame 7 is hinged to the closing panel 2 and the other end can slide along the guide of the slide rail 6 on the housing 1, when the air conditioner is turned on, the closing panel 2 rotates around point O to positions A3, A2, A1 or A, thereby driving the air inlet frame 7 to slide to different positions along the slide rail 6. At this time, the sizes of the air inlets 4 are also different.

[0059] During the closing process of the closing panel 2, the closing panel 2 changes from the OA position to the OA3 position. The relationship between the two cleaning brushes 8 and the air inlet frame 7 during this process is as Figure 5 shown. The two cleaning brushes 8 are in an open state, and the air inlet frame 7 can slide smoothly with the filter net 5, so that the closing panel 2 can smoothly close the ventilation opening 3.

[0060] During the opening process of the closing panel 2, the closing panel 2 changes from the OA3 position to the OA position. During this process, the relationship between the two cleaning brushes 8 and the air inlet frame 7 is as Figure 4As shown, the air inlet frame 7 moves upward as a whole relative to the cleaning brush 8. The cleaning brush 8 is installed downward, which is convenient for removing dust from the filter net 5. The dust removed falls into the water receiving tray 10 below the slide rail 6. Then, the dust and the condensed water in the water receiving tray 10 are discharged to the outside of the air conditioner together, realizing the cleaning of the filter net and the discharge of the dust.

[0061] Through the above method, the dust on the filter net 5 can be cleaned during the opening process of the closing panel 2. Since the cleaning brush 8 is installed downward, the dust on the filter net 5 can directly fall into the water receiving tray 10 after being brushed off by the cleaning brush 8. The brushed-off dust does not pass through the cleaning brush 8, so it will not be blocked by the cleaning brush 8. The cleaning effect is better, and it is more conducive to the collection of dust, avoiding the scattering of dust and making the dust have a more concentrated landing point.

[0062] It is easy for those skilled in the art to understand that, on the premise of no conflict, the above advantageous methods can be freely combined and superimposed.

[0063] The above is only the preferred embodiment of the present application, and it is not intended to limit the present application. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present application shall be included in the protection scope of the present application. The above is only the preferred implementation manner of the present application. It should be noted that for those of ordinary skill in the art in the technical field, without departing from the technical principle of the present application, several improvements and modifications can still be made, and these improvements and modifications should also be regarded as the protection scope of the present application.

Claims

1. An air inlet structure, characterized in that, It includes a housing (1), a closing panel (2) and an air inlet assembly. A ventilation opening (3) is provided on the housing (1), the closing panel (2) is arranged at the ventilation opening (3), the closing panel (2) has a first position for completely closing the ventilation opening (3) and a second position for opening the ventilation opening (3). When the closing panel (2) is in the second position, an air inlet (4) is formed between the closing panel (2) and the housing (1), and the air inlet assembly is arranged at the air inlet (4). The air inlet assembly includes a filter screen (5). One end of the filter screen (5) is connected to the closing panel (2), and the other end is slidably arranged on the housing (1). A cleaning mechanism is arranged on the sliding path of the filter screen (5). The cleaning mechanism corresponds to the filter screen (5) and cleans the filter screen (5). The cleaning mechanism includes a cleaning brush (8). The cleaning brush (8) is respectively arranged on the air inlet side and the air outlet side of the filter screen (5), and the cleaning brush (8) is elastically pressed against the surface of the filter screen (5). A slider (9) is arranged on the housing (1). The relative positions of the cleaning brush (8) on the air inlet side of the filter screen (5) and the cleaning brush (8) on the air outlet side of the filter screen (5) are fixed, and the cleaning brushes (8) on the air inlet side and the air outlet side of the filter screen (5) are both arranged on the slider (9). The slider (9) can adjust its own sliding position according to the different sliding positions of the filter screen (5).

2. The air inlet structure according to claim 1, characterized in that, The closing panel (2) is rotatably arranged at the ventilation opening (3). One end of the air inlet assembly is connected to the rotating side of the closing panel (2), and the other end is connected to the housing (1).

3. The air inlet structure according to claim 1, characterized in that, A slide rail (6) is arranged on the housing (1), and the other end of the filter screen (5) is slidably arranged in the slide rail (6).

4. The air inlet structure according to claim 3, characterized in that, A counterweight is arranged at one end of the filter screen (5) located in the slide rail (6). The counterweight can be slidably arranged in the slide rail (6) and can pull the filter screen (5) into the slide rail (6) when the closing panel (2) is in the first position.

5. The air inlet structure according to claim 3, characterized in that The air inlet assembly further includes an air inlet frame (7). One end of the air inlet frame (7) is hinged to the closing panel (2), and the other end is slidably arranged in the slide rail (6). The filter screen (5) is installed on the air inlet frame (7).

6. The air inlet structure according to claim 4 or 5, characterized in that, The air inlet structure further includes a driving mechanism. The driving mechanism is drivingly connected to the closing panel (2) to drive the closing panel (2) to move between the first position and the second position, and the closing panel (2) drives the filter screen (5) to move.

7. The air inlet structure according to claim 6, characterized in that, The driving mechanism directly drives the closing panel (2) by a motor; or, the driving mechanism drives the closing panel (2) by a motor through a link mechanism; or, the driving mechanism drives the closing panel (2) by a motor through a reduction gear mechanism.

8. The air inlet structure according to claim 3, wherein The slide rail (6) is linear or curved.

9. The air inlet structure according to claim 1, characterized in that, When a slide rail (6) is provided on the housing (1), the cleaning mechanism is arranged at one end of the slide rail (6) close to the closing panel (2).

10. The air inlet structure according to claim 1, characterized in that, The orientation of the cleaning brush (8) forms an acute angle with the direction in which the filter net (5) slides towards the closing panel (2).

11. The air inlet structure according to claim 1, characterized in that, When a slide rail (6) is provided on the housing (1), the cleaning brushes (8) located on both sides of the filter net (5) clamp the filter net (5) when the filter net (5) slides outwards from the slide rail (6), and release the filter net (5) when the filter net (5) slides inwards into the slide rail (6).

12. An air conditioner, comprising an air inlet structure, characterized in that, The air inlet structure is the air inlet structure described in any one of claims 1 to 11.

13. The air conditioner according to claim 12, characterized in that, When the air inlet structure includes a cleaning mechanism, a dust collection device is arranged below the cleaning mechanism.

14. The air conditioner according to claim 13, characterized in that, A water receiving tray (10) is arranged in the air conditioner, and the water receiving tray (10) is arranged below the cleaning mechanism and forms the dust collection device.

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