An air conditioner indoor unit with an automatic filter rewashing function

Abstract

This utility model discloses an air conditioner indoor unit with an automatic filter rewashing capability, including an air conditioner casing, a cross-flow fan, an evaporator, a condensate collection chamber, and a filter rewashing assembly. The air conditioner casing has an internal accommodating space extending along a first direction, with an air inlet and an air outlet. The cross-flow fan and evaporator are both installed along the first direction, with the evaporator arranged at intervals around the cross-flow fan. The condensate collection chamber is located below the evaporator and is used to collect condensate. The filter rewashing assembly employs an air filter structure wound around multiple rotating rollers. This filter covers the air inlet and extends into the condensate collection chamber. The rotation of the rotating rollers drives the filter to circulate, automatically cleaning it with condensate, and then it rotates back to the air inlet position, thus completing the self-cleaning process of the filter without disassembly.

Description

Technical Field

[0001] This utility model relates to the field of air conditioner indoor unit technology, and in particular to an air conditioner indoor unit with an automatic filter rewashing capability. Background Technology

[0002] In current residential air conditioning technology, the cleaning and maintenance of indoor unit filters mainly relies on manual operation by users, which has significant drawbacks. Users need to regularly disassemble, wash, and reinstall the filters, a tedious and difficult process to maintain, leading to the long-term accumulation of dust, bacteria, and other contaminants on the filters. This not only degrades airflow quality, causing secondary pollution and health risks, but also increases air resistance, reduces heat exchange efficiency, resulting in increased energy consumption, performance degradation, and increased operating noise. Although self-cleaning technologies for evaporators exist, solutions specifically focused on automatic filter cleaning remain scarce. A few air conditioners use automated vacuum cleaning methods, which generally suffer from incomplete cleaning, easy secondary pollution, complex structure, and insufficient reliability.

[0003] Therefore, this utility model provides an air conditioner indoor unit with an automatic filter rewashing function to avoid the complicated operation of users regularly disassembling, rinsing and installing the filter, thereby achieving automatic filter rewashing and improving air delivery quality. Utility Model Content

[0004] In order to overcome the shortcomings of the existing technology, the purpose of this utility model is to provide an air conditioning indoor unit that can automatically clean the filter, thereby improving the air supply quality.

[0005] The objective of this utility model is achieved through the following technical solution:

[0006] An air conditioner indoor unit with an automatic filter rewashing capability includes:

[0007] An air conditioner housing has an accommodating space. The extending direction of the air conditioner housing is defined as a first direction. The accommodating space extends along the first direction. The air conditioner housing has an air inlet and an air outlet, and both the air inlet and the air outlet are connected to the accommodating space.

[0008] A cross-flow fan is installed within the accommodating space, extending along the first direction, with both ends of the cross-flow fan connected to the air conditioner housing.

[0009] An evaporator is installed inside the air conditioner housing and extends along the first direction, and the evaporator is spaced around the cross-flow fan;

[0010] A condensate collection chamber is installed within the accommodating space. The evaporator and the condensate collection chamber are distributed sequentially along the direction of gravity. The condensate collection chamber is used to collect the condensate produced by the evaporator.

[0011] A filter screen rewashing assembly is installed within the accommodating space. The filter screen rewashing assembly includes an air filter and multiple rotating rollers. The air filter is sealed to the air inlet and bends along the direction of gravity to extend into the condensate collection chamber. At least one of the rotating rollers is located in the condensate collection chamber, and at least two of the rotating rollers are located at opposite ends of the air inlet. The air filter is wound around the multiple rotating rollers so that the air filter sealed to the air inlet can follow the rotation direction of the rotating rollers, be cleaned by the condensate in the condensate collection chamber, and rotate back to the air inlet.

[0012] Furthermore, the filter rewashing assembly also includes a cleaning mechanism, which is connected to the air conditioner housing and abuts against the air filter.

[0013] Furthermore, the cleaning mechanism has at least two parts, one of which is located in the condensate collection chamber to drive the condensate to clean the air filter, and is spaced apart from the other cleaning mechanism. The air filter is located between the two cleaning mechanisms so that the cleaning mechanisms can clean the opposite sides of the air filter.

[0014] Furthermore, the cleaning mechanism is a brush roller, which can rotate in the same direction as the air filter to clean the surface of the air filter.

[0015] Furthermore, the rotary roller, the air filter, and the cleaning mechanism are all arranged to extend along the first direction.

[0016] Furthermore, the rotary roller includes a driving roller and a driven roller, and at least one of the rotary rollers is a driving roller. The driving roller is connected to a rotary drive mechanism, which is driven to drive the driving roller to rotate and drive the air filter screen wrapped around the driving roller and the driven roller to rotate.

[0017] Furthermore, the air conditioner housing is provided with multiple guide rails, which are located within the accommodating space. The guide rails extend horizontally and are located at opposite ends of the air inlet, and the guide rails slide against the air filter.

[0018] Furthermore, a vibrator is also provided in the accommodating space. The vibrator is installed on and supported by the air conditioner housing. The vibrator abuts against the segment of the air filter that extends along the direction of gravity. The vibrator is used to initially clean the deposits on the air filter or shake off the condensate on the air filter after cleaning.

[0019] Furthermore, the air conditioner casing is also connected to a drain pipe, one end of which is connected to the condensate collection chamber, and the other end of which is connected to the external environment, so as to discharge the condensate from the condensate collection chamber.

[0020] Furthermore, the air filter is made of rubber material.

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

[0022] 1. Based on the condensate collection chamber design, this system achieves efficient resource recycling. It collects the condensate generated during the evaporator's cooling process, which is typically discharged directly, and converts it into a natural water source for cleaning the filter. This not only eliminates the need for additional water consumption or connection to an external water source, saving water resources, but also reduces dependence on the installation location of water pipes, improving the flexibility and convenience of product installation. Notably, condensate is purer than tap water, containing no disinfectants or other chemicals, effectively avoiding the potential risk of harmful substances evaporating into the air after filter cleaning, thus contributing to secondary safety of indoor air and human health. The collection chamber centrally stores and manages the condensate, preventing problems such as corrosion, short circuits, or mold growth that might occur from condensate dripping randomly within the unit. This improves the safety and reliability of the air conditioner's operation and provides a stable and reliable water source for the automatic cleaning function.

[0023] 2. Based on the design of a backwashing component that drives the filter through the condensate collection chamber for backwashing, this structure solves the problem of traditional air conditioners requiring users to manually disassemble and clean the filter periodically. Through an automatic backwashing program, it ensures the filter remains at a high level of cleanliness, thus guaranteeing the air conditioner's intake air volume, cooling and heating efficiency, and exhaust air quality over time, effectively preventing performance degradation and increased energy consumption caused by filter clogging. This design integrates the cleaning process into the air conditioner's operation, allowing users to enjoy continuously fresh air without any intervention, greatly improving user convenience and comfort, and achieving intelligent maintenance of the air filter. The entire cleaning process utilizes the condensate produced by the air conditioner itself, eliminating the need for additional power to drive a powerful water pump or heating element. It is completed solely through the low-power operation of the rotating roller, making it an extremely energy-efficient and environmentally friendly cleaning solution that aligns with the design philosophy of green home appliances. Attached Figure Description

[0024] Figure 1This is a schematic diagram of the structure of an air conditioner indoor unit with an automatic filter rewashing function according to the present invention;

[0025] Figure 2 for Figure 1 A structural diagram from another angle;

[0026] Figure 3 for Figure 1 The cross-sectional view shown.

[0027] In the diagram: 1. Air conditioner casing; 101. Air inlet; 102. Air outlet; 2. Housing space; 3. Cross-flow fan; 4. Evaporator; 5. Condensate collection chamber; 6. Filter washing assembly; 601. Air filter; 602. Rotary roller; 611. Drive roller; 612. Driven roller; 613. Rotary drive mechanism; 7. Cleaning mechanism; 8. Guide rail; 9. Vibrator; 10. Drain pipe. Detailed Implementation

[0028] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0029] It should be noted that when an element is described as being "fixed to" another element, it can be directly attached to the other element or there may be an intervening element. When an element is described as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementations.

[0030] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the specification of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0031] See Figures 1-3An indoor air conditioner unit with an automatic filter rewashing capability according to a preferred embodiment of the present invention includes an air conditioner housing 1, a cross-flow fan 3, an evaporator 4, a condensate collection chamber 5, and a filter rewashing assembly 6. The air conditioner housing 1 has a receiving space 2, and the extending direction of the air conditioner housing 1 is defined as a first direction. The receiving space 2 extends along the first direction. The air conditioner housing 1 has an air inlet 101 and an air outlet 102, both of which are connected to the receiving space 2. The cross-flow fan 3 is installed in the receiving space 2 and extends along the first direction. Both ends of the cross-flow fan 3 are respectively connected to the air conditioner housing 1. The evaporator 4 is installed in the air conditioner housing 1 and extends along the first direction. The evaporator 4 is arranged at intervals around the cross-flow fan 3. The condensate collection chamber 5 is installed in the receiving space. Inside space 2, evaporator 4 and condensate collection chamber 5 are distributed sequentially along the direction of gravity. Condensate collection chamber 5 is used to collect condensate generated by evaporator 4. Filter screen backwashing assembly 6 is installed in the accommodating space 2. Filter screen backwashing assembly 6 includes an air filter 601 and multiple rotating rollers 602. The air filter 601 is sealed on the air inlet 101 and bends and extends into the condensate collection chamber 5 along the direction of gravity. At least one rotating roller 602 is located in the condensate collection chamber 5, and at least two rotating rollers 602 are located at opposite ends of the air inlet 101. The air filter 601 is wound around the multiple rotating rollers 602 so that the air filter 601 sealed on the air inlet 101 can follow the rotation direction of the rotating rollers 602, be cleaned by the condensate in the condensate collection chamber 5, and rotate back to the air inlet 101.

[0032] The working principle of this utility model is as follows: After the air conditioner is started, indoor air enters the accommodating space 2 through the air inlet 101 and the air filter 601. Dust and particulate matter in the air are trapped by the filter. During the cooling process, condensate is generated on the surface of the evaporator 4. This condensate drips downwards under the action of gravity and is collected and stored in the condensate collection chamber 5 located below the evaporator 4. After the air conditioner has been running for a period of time, a lot of dust accumulates on the surface of the air filter 601. At this time, the rotary roller 602 can be controlled to move (it can be manually triggered or automatically triggered by differential pressure, timer, etc.). Multiple rotary rollers 602 rotate in coordination, driving the air filter 601 to slowly circulate along a set path. The dirty filter covering the section of the air inlet 101 is moved out and enters the condensate collection chamber 5 under the guidance of the rotary roller 602. The air filter 601 comes into full contact with the accumulated condensate in the chamber, and the dust is removed under the action of water washing, realizing automatic cleaning. After cleaning, the air filter 601 continues to move with the rotating roller 602, eventually returning to the air inlet 101 to resume its filtering function. Wastewater in the condensate collection chamber 5 can be discharged periodically or through additional devices (such as the drain pipe 10 or the evaporation structure). This design utilizes the condensate generated by the air conditioner itself to achieve online automatic cleaning and recycling of the air filter 601, effectively ensuring the long-term operating efficiency of the air conditioner and indoor air quality.

[0033] Clearly, the design of the condensate collection chamber 5 achieves efficient resource recycling, collecting the condensate generated during the evaporator 4's cooling process—which is usually directly discharged—and converting it into a natural water source for cleaning the filter. This not only eliminates the need for additional water consumption or connection to an external water source, saving water resources, but also reduces dependence on the installation location of water pipes, improving the flexibility and convenience of product installation. It is worth noting that condensate is purer than tap water, containing no disinfectants or other chemicals, effectively avoiding the potential risk of harmful substances evaporating into the air after filter cleaning, thus contributing to secondary safety of indoor air and human health. The collection chamber centrally stores and manages the condensate, preventing problems such as corrosion, short circuits, or mold growth that might occur from condensate dripping randomly within the unit, improving the safety and reliability of air conditioner operation, and providing a stable and reliable water source for the automatic cleaning function.

[0034] Based on the design of a backwashing component that drives the filter through the condensate collection chamber 5 for backwashing, this structure solves the problem of traditional air conditioners requiring users to manually disassemble and clean the filter periodically. Through an automatic backwashing program, it ensures the filter remains at a high level of cleanliness, thus guaranteeing the air conditioner's intake air volume, cooling and heating efficiency, and exhaust air quality over time, effectively preventing performance degradation and increased energy consumption caused by filter clogging. This design integrates the cleaning process into the air conditioner's operation, allowing users to enjoy continuously fresh air without any manual intervention, greatly enhancing the convenience and comfort of the user experience and achieving intelligent maintenance of the air filter 601. The entire cleaning process utilizes the condensate produced by the air conditioner itself, eliminating the need for additional power to drive a powerful water pump or heating element. It is completed solely through the low-power operation of the rotating roller 602, making it an extremely energy-efficient and environmentally friendly cleaning solution that aligns with the design philosophy of green home appliances.

[0035] More preferably, the filter rewash assembly 6 also includes a cleaning mechanism 7, which is connected to the air conditioner housing 1 and abuts against the air filter 601. When the filter moves downwards through the condensate collection chamber 5 driven by the rotating roller 602, the cleaning mechanism 7 physically rubs or scrapes the filter surface, effectively removing sticky dust, oil, or deeply embedded particles that are difficult to remove by water immersion alone. This not only improves the thoroughness of cleaning and avoids secondary clogging caused by the accumulation of pollutants on the filter, but also ensures that the filter has a uniform and unobstructed pore structure each time it rotates to the air inlet 101, maintaining a stable and efficient airflow and filtration effect. Simultaneously, deep cleaning effectively inhibits the growth of bacteria and mold on the damp filter, further improving the hygiene level of the air supply. This design effectively supplements the water washing process with a simple mechanical structure, ultimately significantly enhancing the practicality and user satisfaction of the entire self-cleaning system without significantly increasing system complexity and cost.

[0036] More preferably, the cleaning mechanism 7 has at least two parts. One cleaning mechanism 7 is located inside the condensate collection chamber 5 to drive condensate to clean the air filter 601, and is spaced apart from the other cleaning mechanism 7. The air filter 601 is positioned between the two cleaning mechanisms 7 so that the cleaning mechanism 7 can clean both sides of the air filter 601. This design achieves simultaneous and efficient physical cleaning of both sides of the filter, which can not only thoroughly remove a large amount of dust and lint adhering to the windward side of the filter, but also effectively remove fine particles and oily contaminants that adhere to the back side due to its filtration function. This overcomes the defects of single-sided cleaning, which can easily cause dirt to penetrate or re-adhere. Double-sided cleaning greatly improves the regeneration quality of the filter, ensuring that it can restore near-new ventilation efficiency and dust holding capacity each time it returns to the working position, thereby stabilizing the air conditioning's circulating air volume and heat exchange performance, and avoiding continuous performance degradation caused by incomplete single-sided cleaning. At the same time, this structure effectively inhibits the growth of bacteria and mold in the damp interlayer of the filter, significantly improving the hygiene quality of indoor air. It achieves the goal of automated deep cleaning with a simple mechanical layout, enhancing the reliability of the system and the user experience.

[0037] More preferably, the cleaning mechanism 7 is a brush roller that rotates in the same direction as the air filter 601 to clean its surface. The rotation of the brush roller creates relative sliding and rolling friction with the filter surface. This dynamic cleaning method, compared to fixed scrapers or static cleaning, more efficiently and gently removes stubborn dust, pollen, lint, and oily contaminants deeply embedded in the filter fibers, greatly improving the thoroughness of cleaning while avoiding excessive wear or damage to the filter structure caused by snagging. Secondly, the brush roller's rotation direction is consistent with the filter's movement direction, effectively carrying the brushed-up dirt into the condensate water for rinsing. This achieves a synergistic effect of physical brushing and water rinsing, improving wastewater discharge and preventing secondary re-spraying or re-adhesion of contaminants during the brushing process. Ultimately, this ensures that the filter can maintain optimal ventilation efficiency and filtration performance after each cleaning cycle, improving the stability of the system operation.

[0038] More preferably, the rotary roller 602, air filter 601, and cleaning mechanism 7 all extend along the first direction. This design ensures that the filter maintains uniform tension, contact pressure, and cleaning force across the entire width of the air inlet and along the entire working length of the cleaning mechanism 7, completely avoiding problems such as cleaning dead corners, local wrinkles, or uneven cleaning that may occur due to insufficient component length or misalignment. It achieves full-width, synchronized processing of large-area filters, ensuring that every part of the filter is conveyed, cleaned, and rewound with the same efficiency, greatly improving the reliability and thoroughness of the cleaning process. At the same time, the standardized layout of all core components extending in the same direction simplifies the module's structural design and assembly process, reduces manufacturing complexity and cost, ensures the stability and consistency of system operation, and ultimately provides users with a highly efficient, stable, and consistent all-around self-cleaning experience.

[0039] More preferably, the rotary roller 602 includes a drive roller 611 and a driven roller 612. At least one drive roller 611 is present among the multiple rotary rollers 602. The drive roller 611 is connected to a rotary drive mechanism 613, which is drively connected to the drive roller 611. The rotary drive mechanism 613 drives the drive roller 611 to rotate, thereby causing the air filter 601, which is wound around the drive roller 611 and the driven roller 612, to rotate. This design allows the filter to flexibly adjust its speed and tension according to actual cleaning needs during rotation. For example, the speed can be reduced in the cleaning section to extend the immersion time, while efficiency can be increased in the reloading section, thus significantly optimizing the efficiency and adaptability of the entire cleaning process. The centralized single-point drive not only reduces the complexity of multi-roller synchronous control and avoids problems such as filter shaking, stretching deformation, or accelerated wear caused by asynchronous multiple power sources, but also greatly improves the stability and reliability of the system movement. This design ensures efficient automated cleaning while greatly extending the service life of the filter and the transmission mechanism.

[0040] More preferably, the air conditioner housing 1 is equipped with multiple guide rails 8, which are located within the accommodating space 2. The guide rails 8 extend horizontally and are positioned at opposite ends of the air inlet 101, slidingly contacting the air filter 601. The guide rails 8 provide precise radial positioning and rigid support for the flexible filter in its complex rotational path, effectively limiting any lateral drift, shaking, or sagging that may occur during operation. This ensures that the filter maintains a stable relative position and uniform contact pressure with the frame of the air inlet 101. This not only prevents air leakage or cleaning dead zones caused by filter misalignment but also significantly reduces abnormal noise and wear caused by abnormal friction between the filter and surrounding components, improving the system's stability and quietness. This structure strengthens the guidance and control of filter movement in a simple mechanical way, ensuring the long-term reliability and consistency of the automatic backwashing function.

[0041] More preferably, the accommodating space 2 is also equipped with a vibrator 9, which is installed on and supported by the air conditioner housing 1. The vibrator 9 abuts against the segment of the air filter 601 that extends along the direction of gravity. The vibrator 9 is used to initially clean the adhering substances on the air filter 601 or shake off the condensate adhering to the air filter 601 after cleaning. The vibrator 9 can perform high-frequency micro-vibration on the filter before it enters deep cleaning or reinstallation. Before cleaning, vibration can effectively loosen the light particles such as dry floating dust adhering deep to the filter fibers, making them easier to be thoroughly removed by subsequent brushing and rinsing steps, thus improving the overall cleaning effect. After cleaning, vibration can accelerate the shaking off of residual condensate droplets in the filter pores, greatly improving the filter's drying efficiency and effectively reducing the risk of water in the air supply, mold growth, or odor caused by reinstalling the filter due to excessive moisture. This design, with its simple, low-power mechanism, effectively supplements the main cleaning process, optimizes the regeneration quality and hygiene of the filter, and ensures the dryness and cleanliness of the air conditioning output.

[0042] More preferably, the air conditioner casing 1 is also connected to a drain pipe 10. One end of the drain pipe 10 is connected to the condensate collection chamber 5, and the other end is connected to the external environment to drain the condensate from the condensate collection chamber 5. This design enables the active discharge of wastewater from the collection chamber, allowing the turbid condensate rich in pollutants after filter cleaning to be discharged outdoors in a timely manner. This completely avoids problems such as bacterial growth, odor generation, and corrosion of internal components caused by long-term accumulation of wastewater in the chamber. Active drainage ensures that relatively clean condensate is used in each cleaning cycle, thereby maintaining a stable cleaning effect and eliminating potential safety hazards caused by wastewater overflow, reducing the user's maintenance needs.

[0043] More preferably, the air filter 601 is made of rubber. Traditional filters trap particulate matter by adsorption, making them prone to clogging and difficult to clean thoroughly. They are especially susceptible to deformation and tearing after washing, leading to irreversible performance degradation. Rubber filters, on the other hand, possess excellent elasticity and durability, withstanding repeated brushing by the rollers and continuous vibration from the vibrator 9 without structural damage. They are reusable for extended periods, significantly improving their lifespan. Their dense, hydrophobic surface prevents most dust from embedding, allowing it to adhere only to the surface and be easily removed by the cleaning mechanism 7. After cleaning, water quickly dries, fundamentally avoiding secondary contamination problems caused by dampness, bacteria, and mold growth in traditional filters. This material innovation overcomes the performance bottlenecks of traditional filters, fully realizing the value of the automatic backwashing function.

[0044] In summary, the present invention has, but is not limited to, the following beneficial effects:

[0045] This invention achieves efficient resource recycling by incorporating a condensate collection chamber 5. It collects the condensate produced by the evaporator 4 and converts it into a natural water source for cleaning the filter, eliminating the need for additional water consumption or reliance on an external water supply, significantly saving water resources and improving installation flexibility. Simultaneously, the collection chamber effectively prevents problems such as rust, short circuits, and mold growth that may be caused by indiscriminate dripping of condensate, thus improving the reliability and safety of the air conditioner operation.

[0046] The filter rewashing assembly 6 uses multiple rotating rollers 602 to circulate the filter through the condensate chamber, achieving fully automatic cleaning. This design completely solves the pain point of traditional filters requiring manual disassembly and cleaning, continuously maintaining the filter's cleanliness and stably maintaining the air conditioner's air intake, heat exchange efficiency, and energy consumption performance. The entire cleaning process utilizes the air conditioner's self-generated condensate and low-power transmission, making it an energy-saving and environmentally friendly intelligent maintenance solution.

[0047] The innovative rubber filter material, combined with optimized mechanisms such as double-sided brushing and vibration drainage, overcomes the performance limitations of traditional fiber filters. The rubber filter boasts excellent elasticity, water repellency, and durability, withstanding repeated brushing and vibration without damage. It dries quickly after cleaning, fundamentally eliminating secondary pollution and bacterial growth, significantly improving filtration efficiency and indoor air quality.

[0048] In the description of this specification, references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of those different embodiments or examples.

[0049] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.

[0050] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any person skilled in the art can easily conceive of various variations or substitutions within the technical scope disclosed in this application, and these should all be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. An air conditioning indoor unit with an automatically washable filter, characterized in that, include: An air conditioner housing (1) has a receiving space (2). The extending direction of the air conditioner housing (1) is defined as a first direction. The receiving space (2) extends along the first direction. The air conditioner housing (1) has an air inlet (101) and an air outlet (102). The air inlet (101) and the air outlet (102) are both connected to the receiving space (2). A cross-flow fan (3) is installed in the accommodating space (2). The cross-flow fan (3) extends along the first direction, and both ends of the cross-flow fan (3) are respectively connected to the air conditioner housing (1). Evaporator (4), the evaporator (4) is installed inside the air conditioner housing (1) and extends along the first direction, the evaporator (4) is arranged at intervals around the cross-flow fan (3); A condensate collection chamber (5) is installed in the accommodating space (2). The evaporator (4) and the condensate collection chamber (5) are distributed sequentially along the direction of gravity. The condensate collection chamber (5) is used to collect the condensate generated by the evaporator (4). A filter screen rewashing assembly (6) is installed in the accommodating space (2). The filter screen rewashing assembly (6) includes an air filter (601) and a plurality of rotating rollers (602). The air filter (601) is covered by the air inlet (101) and bends along the direction of gravity to extend into the condensate collection chamber (5). At least one of the rotating rollers (602) is located in the condensate collection chamber (5), and at least two of the rotating rollers (602) are located at opposite ends of the air inlet (101). The air filter (601) is wound around the plurality of rotating rollers (602) so that the air filter (601) covered by the air inlet (101) can follow the rotation direction of the rotating rollers (602) to be cleaned by the condensate in the condensate collection chamber (5) and rotate back to the air inlet (101).

2. An air conditioning indoor unit with an automatically washable filter as described in claim 1, characterized in that, The filter rewash assembly (6) further includes a cleaning mechanism (7), which is connected to the air conditioner housing (1) and abuts against the air filter (601).

3. An air conditioning indoor unit with an automatically washable filter according to claim 2, characterized in that, The cleaning mechanism (7) has at least two parts, one of which is located in the condensate collection chamber (5) to drive the condensate to clean the air filter (601), and is spaced apart from the other cleaning mechanism (7). The air filter (601) is located between the two cleaning mechanisms (7) so that the cleaning mechanism (7) can clean the two opposite sides of the air filter (601).

4. An air conditioning indoor unit with an automatically washable filter according to claim 2, characterized in that, The cleaning mechanism (7) is a brush roller, which can rotate in the same direction as the air filter (601) to clean the surface of the air filter (601).

5. An air conditioning indoor unit with an automatically washable filter according to claim 4, characterized in that, The rotary roller (602), the air filter (601), and the cleaning mechanism (7) are all arranged to extend along the first direction.

6. An air conditioning indoor unit with an automatically washable filter according to claim 1, characterized in that, The rotary roller (602) includes a drive roller (611) and a driven roller (612). At least one of the rotary rollers (602) is a drive roller (611). The drive roller (611) is connected to a rotary drive mechanism (613). The rotary drive mechanism (613) is driven to the drive roller (611). The rotary drive mechanism (613) is used to drive the drive roller (611) to rotate and drive the air filter (601) which is wound around the drive roller (611) and the driven roller (612) to rotate.

7. An air conditioning indoor unit with an automatically washable filter according to claim 1, characterized in that, The air conditioner housing (1) is provided with multiple guide rails (8), which are located in the accommodating space (2). The guide rails (8) extend horizontally and are located at opposite ends of the air inlet (101). The guide rails (8) slide against the air filter (601).

8. An air conditioning indoor unit with an automatically washable filter according to claim 1, characterized in that, The accommodating space (2) is also provided with a vibrator (9), which is installed on the air conditioner housing (1) and supported by the air conditioner housing (1). The vibrator (9) abuts against the segment of the air filter (601) that extends along the direction of gravity. The vibrator (9) is used to initially clean the deposits on the air filter (601) or shake off the condensate on the air filter (601) after cleaning.

9. An air conditioning indoor unit with an automatically washable filter according to claim 1, characterized in that, The air conditioner casing (1) is also connected to a drain pipe (10). One end of the drain pipe (10) is connected to the condensate collection chamber (5), and the other end of the drain pipe (10) is connected to the external environment to discharge the condensate from the condensate collection chamber (5).

10. An air conditioning indoor unit with an automatically washable filter according to claim 1, characterized in that, The air filter (601) is made of rubber.

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