Filtration structure and air conditioning

Abstract

This application relates to a filter structure and an air conditioner, belonging to the field of air conditioning technology. The filter structure of this application includes a support component, a circulation drive component, a filter screen, and a self-cleaning component. The support component is disposed within the lower air vent of the air conditioner, and a filter duct communicating with the lower air vent is provided within the support component. The filter duct and the opening of the lower air vent are positioned opposite each other in the height direction. The circulation drive component is disposed within the support component. The filter screen is disposed on the circulation drive component, which is configured to drive the filter screen to move so that the filter screen blocks the opening of the filter duct when air returns from the lower air vent and avoids the opening of the filter duct when air exits from the lower air vent. The self-cleaning component is disposed on the support component and is configured to clean the filter screen as it passes through. The technical solution disclosed in this application can solve the problem that existing air conditioner filters easily accumulate dust, requiring frequent disassembly and cleaning, increasing the burden on users.

Description

Technical Field

[0001] This application relates to the field of air conditioning technology, and in particular to a filter structure and an air conditioner. Background Technology

[0002] To adapt to the airflow characteristics of cold air settling and hot air rising, the dual-outlet structure has become the mainstream design for air conditioning indoor units. Dual outlets include a lower outlet and a side outlet, which can work alternately or in conjunction as air supply and return outlets, achieving bidirectional airflow regulation. To ensure air quality, each dual outlet is usually equipped with a filter assembly for air filtration. However, the filter at the lower outlet is prone to dust accumulation, requiring frequent disassembly and cleaning, which is cumbersome and increases the burden on users. Utility Model Content

[0003] This application provides a filter structure and an air conditioner to solve the problem that existing air conditioner filters are prone to dust accumulation, requiring frequent disassembly and cleaning, which increases the burden on users.

[0004] Firstly, this application provides a filtering structure, including:

[0005] A support assembly is disposed inside the lower air vent of the air conditioner. The support assembly is provided with a filter air duct that communicates with the lower air vent. The filter air duct and the opening of the lower air vent are disposed opposite each other in the height direction.

[0006] A cyclic drive component is disposed within the support component;

[0007] A filter screen is disposed on the circulation drive assembly, which is configured to drive the filter screen to move so that the filter screen blocks the opening of the filter duct when the air returns from the downwind vent and avoids the opening of the filter duct when the air exits from the downwind vent.

[0008] A self-cleaning component is disposed on the support component, and the self-cleaning component is configured to clean the filter screen as it passes through.

[0009] In some embodiments, the circulation drive assembly is disposed above the filter duct, and the circulation drive assembly includes:

[0010] The drive unit is disposed on the support assembly;

[0011] A ring-shaped transmission component is disposed on the drive unit, and the ring-shaped transmission component is configured to circulate in a plane perpendicular to the length direction under the drive of the drive unit;

[0012] The filter screen is disposed on the annular transmission component.

[0013] In some embodiments, the drive unit includes:

[0014] A first drive roller is rotatably mounted on the support assembly;

[0015] The second drive roller is rotatably mounted on the support assembly. The first drive roller and the second drive roller are arranged at intervals along the width direction and are respectively located on both sides of the filter duct.

[0016] A drive source is disposed on the support assembly, and the drive source is connected to the first drive roller and / or the second drive roller to drive the first drive roller and the second drive roller to rotate.

[0017] The first drive roller and the second drive roller are engaged or in frictional contact with the annular transmission component.

[0018] In some embodiments, the orthographic projection of the first drive roller and the orthographic projection of the opening of the filter duct do not overlap in a plane perpendicular to the height direction; wherein the central axis of the first drive roller and the adjacent side of the filter duct opening are at a predetermined distance in the width direction.

[0019] In some embodiments, the opening width of the filter duct is A, the width of the filter screen is D, the diameter of the first drive roller is B, and the preset distance is C, satisfying the following relationship: A≤D≤π*B / 2+2*C.

[0020] In some embodiments, the support component includes:

[0021] A lower support member is disposed within the lower air vent, and the lower support member is provided with a first air vent.

[0022] An upper support member is disposed within the lower support member. The upper support member is provided with a second air vent, which is connected to the first air vent to form the filter air duct together.

[0023] The cyclic drive component is disposed within the upper support member.

[0024] In some embodiments, the upper support includes:

[0025] The main frame, with the second air vent located at the bottom of the main frame;

[0026] A sub-frame is disposed at the bottom of the main frame, and the sub-frame and the second air outlet are arranged at intervals in the width direction;

[0027] The self-cleaning component is disposed within the sub-frame.

[0028] In some embodiments, the self-cleaning component includes a brush that abuts against the annular transmission member.

[0029] In some embodiments, the filter structure includes a dust collection box that covers the sub-frame and is detachably connected to the sub-frame.

[0030] In some embodiments, the lower support member includes:

[0031] Hanging rack;

[0032] A fixing plate is disposed on the inner wall of the bracket in the width direction, and the fixing plate extends along the width direction;

[0033] A partition is disposed at the bottom of the bracket and extends along the height direction. The partition and the fixing plate are spaced apart in the width direction to form the first air vent. The partition and the fixing plate together divide the bracket into a first chamber, a second chamber and a third chamber that are connected to each other.

[0034] An air guide plate is rotatably disposed in the first chamber;

[0035] The main frame is located in the second chamber, the sub-frame is located in the third chamber, and the main frame abuts against the fixing plate and the partition plate respectively.

[0036] Secondly, this application provides an air conditioner, including a side air vent, a down air vent, and a filter structure as described above, wherein the filter structure is disposed within the down air vent.

[0037] The technical solutions provided in this application have the following advantages compared with the prior art:

[0038] The filter structure provided in this application embodiment drives the filter screen to move through a circulating drive component, adapting to the bidirectional airflow requirements of the downdraft. Specifically, when the downdraft returns air, the circulating drive component drives the filter screen to block the opening of the filter duct to intercept dust and impurities in the air, ensuring air quality and preventing pollutants from entering the air conditioner and affecting heat exchange efficiency or causing secondary pollution. When the downdraft exits air, the circulating drive component drives the filter screen to avoid the opening of the filter duct, preventing the filter screen from blocking the airflow and creating additional obstruction to the airflow, reducing wind resistance to improve airflow efficiency and reduce air conditioning energy consumption. This ensures air quality during the return air phase and airflow efficiency during the exit air phase. The self-cleaning component automatically cleans the filter screen as it passes by, effectively reducing dust accumulation on the filter screen surface. This eliminates the need for users to manually disassemble and install the filter screen for cleaning, saving the tedious operation of disassembly, cleaning, and installation, avoiding the risk of damage to the equipment or filter screen due to improper operation, while reducing filter screen clogging, extending filter screen life, and significantly reducing the user's maintenance burden. In addition, the support component integrates the circulation drive component, filter, and self-cleaning component together, and can be directly installed in the air conditioner's lower air vent. The filter duct and the lower air vent opening are set opposite each other in the height direction, without the need for major modifications to the original air conditioner structure. Attached Figure Description

[0039] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with the present invention and, together with the description, serve to explain the principles of the present invention.

[0040] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0041] One or more embodiments are illustrated by way of example with reference numerals in the accompanying drawings. These illustrations do not constitute a limitation on the embodiments. Elements with the same reference numerals in the drawings are denoted as similar elements. Unless otherwise stated, the figures in the drawings are not to be limited by scale.

[0042] Figure 1 A schematic diagram of the structure provided in the embodiments of this application when the filter structure avoids the opening of the filter air duct;

[0043] Figure 2 A schematic diagram of the structure of the filter structure provided in the embodiment of this application when the opening of the filter duct is covered;

[0044] Figure 3 This is an exploded view of the filter structure provided in the embodiments of this application;

[0045] Figure 4 This is a schematic diagram of the upper support member of the filter structure provided in the embodiments of this application;

[0046] Figure 5 for Figure 4 Enlarged view of section P in the middle;

[0047] Figure 6 An airflow path diagram for an air conditioner with air return at the lower air vent and air outlet at the side air vent, provided in an embodiment of this application;

[0048] Figure 7 This is an airflow path diagram for an air conditioner with air outlet at the bottom and return air at the side vent, as provided in an embodiment of this application.

[0049] Explanation of reference numerals in the attached figures:

[0050] 1. Downwind vent; 2. Side vent;

[0051] 10. Support assembly; 110. Upper support component; 1101. Second air vent; 1102. Main frame; 1103. Sub-frame; 1104. Male buckle; 120. Lower support component; 1201. First air vent; 1202. Hanger; 1203. Fixing plate; 1204. Partition; 1205. First chamber; 1206. Second chamber; 1207. Third chamber; 1208. Air guide plate;

[0052] 20. Circulating drive assembly; 2101. First drive roller; 2102. Second drive roller; 220. Annular transmission component;

[0053] 30. Filter screen;

[0054] 40. Self-cleaning component; 410. Brush; 420. Brush handle;

[0055] 50. Dust collection box; 510. Female clip;

[0056] 60. Filtered air duct. Detailed Implementation

[0057] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0058] The following disclosure provides numerous different embodiments or examples for implementing various structures of the present invention. To simplify the disclosure, specific examples of components and arrangements are described below. These are merely examples and are not intended to limit the scope of the invention. Furthermore, reference numerals and / or letters may be repeated in different examples. Such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed.

[0059] For ease of description, spatial relative terms may be used in the text to describe the relative position or movement of one element or feature relative to another element or feature, as shown in the figure. These relative terms include, for example, "inside," "outside," "middle," "outer," "below," "below," "above," "front," "back," etc. Such spatial relative terms are intended to include different orientations of the device in use or operation, other than those depicted in the figure. For example, if the device in the figure undergoes a positional flip, orientation change, or change of motion, these directional indications will change accordingly. For instance, an element described as "below other elements or features" or "below other elements or features" will subsequently be oriented "above other elements or features" or "above other elements or features." Therefore, the example term "below" can include both upper and lower orientations. The device may be otherwise oriented (rotated 90 degrees or in other directions), and the spatial relative descriptors used in the text will be interpreted accordingly.

[0060] To adapt to the natural airflow characteristics of cold air settling and hot air rising, and thus effectively improve indoor air conditioning comfort and temperature regulation efficiency, the dual-outlet structure has gradually become the mainstream design for current air conditioning indoor units. The dual-outlet structure includes a lower air vent and a side air vent, which can work alternately or collaboratively as air outlets and return air vents, respectively, to achieve bidirectional airflow regulation. To ensure air quality, each of the dual air vents is usually equipped with a filter assembly for air filtration. However, the lower air vent is installed at a lower position and is located in a critical path of indoor airflow. Dust, lint, and other pollutants in the air easily accumulate on the filter corresponding to this lower air vent, leading to frequent filter clogging. To ensure normal operation and filtration effectiveness, users need to regularly disassemble and clean the filter at the lower air vent, a cumbersome procedure that increases the user's daily maintenance burden.

[0061] Example 1

[0062] To address the aforementioned technical issues, such as Figure 1 , Figure 2As shown, this application embodiment provides a filter structure, including a support component 10, a circulation drive component 20, a filter screen 30, and a self-cleaning component 40. The support component 10 is disposed inside the lower air vent 1 of the air conditioner, and a filter duct 60 communicating with the lower air vent 1 is disposed inside the support component 10. The filter duct 60 and the opening of the lower air vent 1 are arranged opposite each other in the height direction. The circulation drive component 20 is disposed inside the support component 10. The filter screen 30 is disposed on the circulation drive component 20, and the circulation drive component 20 is configured to drive the filter screen 30 to move so that the filter screen 30 blocks the opening of the filter duct 60 when the air returns from the lower air vent 1, and avoids the opening of the filter duct 60 when the air exits from the lower air vent 1. The self-cleaning component 40 is disposed on the support component 10, and the self-cleaning component 40 is configured to clean the filter screen 30 when it passes by.

[0063] As can be seen from the above, the circulation drive component 20 drives the filter 30 to move, which is adapted to the bidirectional airflow requirements of the downspout 1. Specifically, when the downspout 1 returns air, the circulation drive component drives the filter 30 to block the opening of the filter duct 60 to intercept dust and impurities in the air, ensuring air quality and preventing pollutants from entering the air conditioner and affecting heat exchange efficiency or causing secondary pollution. When the downspout 1 discharges air, the circulation drive component drives the filter 30 to avoid the opening of the filter duct 60, preventing the filter 30 from blocking the airflow and creating additional obstruction to the airflow. This design reduces wind resistance to improve airflow efficiency and lower air conditioning energy consumption, thus ensuring air quality during the return air phase and airflow efficiency during the outlet air phase. The self-cleaning component 40 automatically cleans the filter 30 as it passes through, effectively reducing dust accumulation on the filter 30 surface. This eliminates the need for manual disassembly and cleaning, saving users the trouble of disassembly, cleaning, and installation, avoiding the risk of damage to the equipment or filter 30 due to improper operation. It also reduces filter clogging, extends filter 30 lifespan, and significantly reduces the user's maintenance burden. Furthermore, the support component 10 integrates the circulation drive component 20, filter 30, and self-cleaning component 40, allowing for direct installation within the air conditioner's lower vent 1. The filter duct 60 and the lower vent 1 opening are positioned opposite each other in the height direction, requiring no major modifications to the original air conditioning structure.

[0064] It should be noted that, as Figure 1 As shown, the height direction is parallel to the Z direction, the width direction is parallel to the Y direction, and the length direction is parallel to the X direction.

[0065] It should also be noted that, such as Figure 6 , Figure 7As shown, the downvent 1 has openings at both ends in the height direction. The downvent 1 is connected to the filter duct 60, becoming the only channel for airflow in and out. In addition, the circulation drive assembly 20 drives the filter screen 30 to block or avoid the air vent of the filter duct 60. In this application, the air vent of the filter duct 60 refers to the opening on the side close to the circulation drive assembly 20. In this application, the filter duct 60 is used as an essential barrier on the airflow path of the downvent 1. The gas can be filtered at the opening of the filter duct 60, so that the entire filter structure can be installed in the downvent 1 of the air conditioner.

[0066] Example 2

[0067] This application provides a filter structure, including a support component 10, a circulation drive component 20, a filter screen 30, and a self-cleaning component 40. The support component 10 is disposed within the lower air vent 1 of the air conditioner, and a filter duct 60 communicating with the lower air vent 1 is disposed within the support component 10. The filter duct 60 and the opening of the lower air vent 1 are arranged opposite each other in the height direction. The circulation drive component 20 is disposed within the support component 10. The filter screen 30 is disposed on the circulation drive component 20, and the circulation drive component 20 is configured to drive the filter screen 30 to move so that the filter screen 30 blocks the opening of the filter duct 60 when the air returns from the lower air vent 1, and avoids the opening of the filter duct 60 when the air exits from the lower air vent 1. The self-cleaning component 40 is disposed on the support component 10, and the self-cleaning component 40 is configured to clean the filter screen 30 as it passes by.

[0068] As can be seen from the above, the circulation drive component 20 drives the filter 30 to move, which is adapted to the bidirectional airflow requirements of the downspout 1. Specifically, when the downspout 1 returns air, the circulation drive component drives the filter 30 to block the opening of the filter duct 60 to intercept dust and impurities in the air, ensuring air quality and preventing pollutants from entering the air conditioner and affecting heat exchange efficiency or causing secondary pollution. When the downspout 1 discharges air, the circulation drive component drives the filter 30 to avoid the opening of the filter duct 60, preventing the filter 30 from blocking the airflow and creating additional obstruction to the airflow. This design reduces wind resistance to improve airflow efficiency and lower air conditioning energy consumption, thus ensuring air quality during the return air phase and airflow efficiency during the outlet air phase. The self-cleaning component 40 automatically cleans the filter 30 as it passes through, effectively reducing dust accumulation on the filter 30 surface. This eliminates the need for manual disassembly and cleaning, saving users the trouble of disassembly, cleaning, and installation, avoiding the risk of damage to the equipment or filter 30 due to improper operation. It also reduces filter clogging, extends filter 30 lifespan, and significantly reduces the user's maintenance burden. Furthermore, the support component 10 integrates the circulation drive component 20, filter 30, and self-cleaning component 40, allowing for direct installation within the air conditioner's lower vent 1. The filter duct 60 and the lower vent 1 opening are positioned opposite each other in the height direction, requiring no major modifications to the original air conditioning structure.

[0069] It should be noted that, as Figure 1 As shown, the height direction is parallel to the Z direction, the width direction is parallel to the Y direction, and the length direction is parallel to the X direction.

[0070] It should also be noted that, such as Figure 6 , Figure 7 As shown, the downvent 1 has openings at both ends in the height direction. The downvent 1 is connected to the filter duct 60, becoming the only channel for airflow in and out. In addition, the circulation drive assembly 20 drives the filter screen 30 to block or avoid the air vent of the filter duct 60. In this application, the air vent of the filter duct 60 refers to the opening on the side close to the circulation drive assembly 20. In this application, the filter duct 60 is used as an essential barrier on the airflow path of the downvent 1. The gas can be filtered at the opening of the filter duct 60, so that the entire filter structure can be installed in the downvent 1 of the air conditioner.

[0071] like Figure 1 , Figure 2 As shown, in some embodiments, the circulation drive assembly 20 is disposed above the filter duct 60. The circulation drive assembly 20 includes a drive part and an annular transmission member 220. The drive part is disposed on the support assembly 10. The annular transmission member 220 is disposed on the drive part and is configured to circulate in a plane perpendicular to the length direction under the drive of the drive part. The filter screen 30 is disposed on the annular transmission member 220.

[0072] The annular transmission component 220, under the action of the drive unit, achieves cyclic movement in a plane perpendicular to its length direction. This drives the filter screen 30 to cyclically move synchronously with the annular transmission component 220, forming a continuous and stable circulation path. On the one hand, this ensures that the filter screen 30 can accurately block the opening of the filter duct 60 when the air is returning from the downwind vent 1 and avoid the opening of the filter duct 60 when the air is exiting from the downwind vent 1. On the other hand, the cyclic movement characteristic allows the filter screen 30 to continuously pass through the self-cleaning component 40 without the need for additional complex motion switching mechanisms, thus providing stable cleaning conditions for the self-cleaning component 40 and ensuring that the dust accumulated on the filter screen 30 can be continuously and thoroughly cleaned. By setting the filter screen 30 on the annular transmission component 220, it is convenient for subsequent maintenance or replacement of the filter screen 30. Furthermore, the rigidity and transmission stability of the annular transmission component 220 can ensure the flatness of the filter screen 30 during movement.

[0073] It should be noted that the filter screen 30 is connected to the annular transmission component 220 by means of bonding or fasteners, including but not limited to adhesive bonding.

[0074] It should also be noted that, since the circulation drive component 20 is located above the filter duct 60, the opening on the side near the circulation drive component 20 is the upper opening of the filter duct 60.

[0075] like Figure 1 , Figure 2 As shown, in some embodiments, the driving unit includes a first driving roller 2101, a second driving roller 2102, and a driving source; the first driving roller 2101 is rotatably mounted on the support assembly 10; the second driving roller 2102 is rotatably mounted on the support assembly 10, the first driving roller 2101 and the second driving roller 2102 are spaced apart along the width direction and are respectively located on both sides of the filter duct 60; the driving source is mounted on the support assembly 10, and the driving source is connected to the first driving roller 2101 and / or the second driving roller 2102 to drive the first driving roller 2101 and the second driving roller 2102 to rotate; wherein the first driving roller 2101 and the second driving roller 2102 mesh or frictionally contact the annular transmission member 220.

[0076] By arranging the first drive roller 2101 and the second drive roller 2102 at intervals along the width direction of the downwind outlet 1 and located on both sides of the downwind outlet 1, the movement trajectory of the annular transmission component 220 can correspond to the downwind outlet 1, ensuring that the filter screen 30 can block or avoid the downwind outlet 1 at a preset position when moving with the annular transmission component 220. Power transmission is achieved through the meshing or frictional contact between the drive rollers and the annular transmission component 220, resulting in high transmission efficiency and stable operation, effectively ensuring the smoothness of the movement of the annular transmission component 220 and the filter screen 30. In addition, the roller drive structure is simple and compact, occupies little space, and is easy to integrate into the air conditioner.

[0077] It should be noted that, as Figures 1-4 As shown, the first drive roller 2101 and the second drive roller 2102 mesh with the annular transmission member 220. Specifically, the annular transmission member 220 is a toothed belt, and the first drive roller 2101 and the second drive roller 2102 are provided with teeth that mesh with the toothed belt. In addition, the first drive roller 2101 and the second drive roller 2102 have the same diameter and move synchronously. Preferably, the first drive roller 2101 and the second drive roller 2102 rotate counterclockwise. Furthermore, the length of the annular transmission member 220 is less than the length of the filter screen 30 to ensure airflow. Multiple annular transmission members 220 can be arranged at intervals along the length direction to further reduce the length of each annular transmission member 220. However, by increasing the number of annular transmission members 220, the stability and reliability of the transmission of the filter screen 30 can be ensured while maintaining airflow.

[0078] It should also be noted that, such as Figure 2 As shown, the area on the annular transmission component 220 where the filter screen 30 is provided is smaller than the area on the annular transmission component 220 where the filter screen 30 is not provided.

[0079] It should also be noted that the driving source is a motor. There can be one motor, which is connected to the first driving roller 2101 or the second driving roller 2102. Of course, there can also be two motors, which are connected to the first driving roller 2101 and the second driving roller 2102 respectively.

[0080] It should also be noted that the shafts of the first drive roller 2101 and the second drive roller 2102 are rotatably mounted on the support assembly 10 via rolling bearings, and the output shaft of the motor is connected to the shafts, thereby driving the first drive roller 2101 and the second drive roller 2102 to rotate.

[0081] It should also be noted that the inner side of the annular transmission member 220 meshes or rubs with the first drive roller 2101 and the second drive roller 2102, and the filter screen 30 is disposed on the outer side of the annular transmission member 220.

[0082] like Figure 3 As shown, in some embodiments, the orthographic projection of the first drive roller 2101 and the orthographic projection of the opening of the filter duct 60 do not overlap on a plane perpendicular to the height direction; wherein, the central axis of the first drive roller 2101 and the adjacent side of the opening of the filter duct 60 have a predetermined distance in the width direction.

[0083] By ensuring that the orthographic projections of the first drive roller 2101 and the opening of the filter duct 60 do not overlap, the first drive roller 2101 avoids blocking the lower air outlet 1 in the height direction, thus preventing airflow loss due to obstruction by the first drive roller 2101 and ensuring the heat exchange and air delivery efficiency of the air conditioner. By setting a preset distance in a preset direction, sufficient clearance is reserved for the filter screen 30 to move with the annular transmission component 220, so that when the filter screen 30 avoids the opening of the filter duct 60, it can completely avoid obstructing the opening of the filter duct 60, preventing part of the filter screen 30 from remaining in the opening of the filter duct 60, and completely eliminating the potential risk of the filter screen 30 obstructing the opening of the filter duct 60.

[0084] It should be noted that, as Figure 3As shown, on a plane perpendicular to the height direction, the orthographic projection of the second drive roller 2102 overlaps with the orthographic projection of the opening of the filter duct 60. This arrangement makes fuller use of the limited space around the opening of the filter duct 60, avoiding an increase in the volume occupied by the filter structure due to the second drive roller 2102 being completely far away from the opening of the filter duct 60, thus improving compactness. At the same time, the partially overlapping positional relationship allows the second drive roller 2102 to support and guide the annular transmission member 220 closer to the opening area of ​​the filter duct 60. When the annular transmission member 220 drives the filter screen 30 to move to the opening area of ​​the filter duct 60, the movement trajectory will be more stable, preventing the annular transmission member 220 and the filter screen 30 from shaking or deviating at the opening of the filter duct 60 due to lack of close support or excessively long transmission trajectory, thus ensuring the stability of the filtration effect.

[0085] It should also be noted that the side adjacent to the opening of the filter duct 60 refers to the side of the opening of the filter duct 60 that is adjacent to the first drive roller 2101.

[0086] like Figure 3 As shown, in some embodiments, the opening width of the filter duct 60 is A, the width of the filter screen 30 is D, the diameter of the first drive roller 2101 is B, and the preset distance is C, satisfying the following relationship: A≤D≤π*B / 2+2*C.

[0087] The opening width A of the filter duct 60 is less than or equal to the width D of the filter screen 30, ensuring that the filter screen 30 can completely cover the entire width range of the downwind vent 1. This avoids unfiltered gaps in the opening of the filter duct 60 due to the filter screen 30 being too short, thus ensuring the air filtration effect during the return air phase of the downwind vent 1. The safety space reserved for the filter 30 by D≤π*B / 2+2*C is provided, where π*B / 2 is the half circumference length of the first drive roller 2101, corresponding to the maximum length that the filter 30 can fit when it wraps around the roller, and 2*C is the sum of the preset distances on both sides of the first drive roller 2101 and the side adjacent to the opening of the filter duct 60. This allows the filter 30 to completely retract into the hidden area around the first drive roller 2101 when the airflow flows out from the downwind outlet 1. This avoids the filter 30 from being partially located within the opening of the filter duct 60 due to its excessive length, which would obstruct the airflow and interfere with the airflow. This achieves complete concealment and does not obstruct the airflow from the downwind outlet 1, ensuring the airflow efficiency when the downwind outlet 1 is exposed.

[0088] It should be noted that the length of filter screen 30 is greater than the length of the opening of filter duct 60, thus ensuring the filtration effect.

[0089] It should also be noted that the opening width A of the filter duct 60 is the opening width of the second air outlet 1101.

[0090] Example 3

[0091] This application provides a filter structure, including a support component 10, a circulation drive component 20, a filter screen 30, and a self-cleaning component 40. The support component 10 is disposed within the lower air vent 1 of the air conditioner, and a filter duct 60 communicating with the lower air vent 1 is disposed within the support component 10. The filter duct 60 and the opening of the lower air vent 1 are arranged opposite each other in the height direction. The circulation drive component 20 is disposed within the support component 10. The filter screen 30 is disposed on the circulation drive component 20, and the circulation drive component 20 is configured to drive the filter screen 30 to move so that the filter screen 30 blocks the opening of the filter duct 60 when the air returns from the lower air vent 1, and avoids the opening of the filter duct 60 when the air exits from the lower air vent 1. The self-cleaning component 40 is disposed on the support component 10, and the self-cleaning component 40 is configured to clean the filter screen 30 as it passes by.

[0092] As can be seen from the above, the circulation drive component 20 drives the filter 30 to move, which is adapted to the bidirectional airflow requirements of the downspout 1. Specifically, when the downspout 1 returns air, the circulation drive component drives the filter 30 to block the opening of the filter duct 60 to intercept dust and impurities in the air, ensuring air quality and preventing pollutants from entering the air conditioner and affecting heat exchange efficiency or causing secondary pollution. When the downspout 1 discharges air, the circulation drive component drives the filter 30 to avoid the opening of the filter duct 60, preventing the filter 30 from blocking the airflow and creating additional obstruction to the airflow. This design reduces wind resistance to improve airflow efficiency and lower air conditioning energy consumption, thus ensuring air quality during the return air phase and airflow efficiency during the outlet air phase. The self-cleaning component 40 automatically cleans the filter 30 as it passes through, effectively reducing dust accumulation on the filter 30 surface. This eliminates the need for manual disassembly and cleaning, saving users the trouble of disassembly, cleaning, and installation, avoiding the risk of damage to the equipment or filter 30 due to improper operation. It also reduces filter clogging, extends filter 30 lifespan, and significantly reduces the user's maintenance burden. Furthermore, the support component 10 integrates the circulation drive component 20, filter 30, and self-cleaning component 40, allowing for direct installation within the air conditioner's lower vent 1. The filter duct 60 and the lower vent 1 opening are positioned opposite each other in the height direction, requiring no major modifications to the original air conditioning structure.

[0093] It should be noted that, as Figure 1 As shown, the height direction is parallel to the Z direction, the width direction is parallel to the Y direction, and the length direction is parallel to the X direction.

[0094] It should also be noted that, such as Figure 6 , Figure 7As shown, the downvent 1 has openings at both ends in the height direction. The downvent 1 is connected to the filter duct 60, becoming the only channel for airflow in and out. In addition, the circulation drive assembly 20 drives the filter screen 30 to block or avoid the air vent of the filter duct 60. In this application, the air vent of the filter duct 60 refers to the opening on the side close to the circulation drive assembly 20. In this application, the filter duct 60 is used as an essential barrier on the airflow path of the downvent 1. The gas can be filtered at the opening of the filter duct 60, so that the entire filter structure can be installed in the downvent 1 of the air conditioner.

[0095] like Figure 1 , Figure 2 As shown, in some embodiments, the circulation drive assembly 20 is disposed above the filter duct 60. The circulation drive assembly 20 includes a drive part and an annular transmission member 220. The drive part is disposed on the support assembly 10. The annular transmission member 220 is disposed on the drive part and is configured to circulate in a plane perpendicular to the length direction under the drive of the drive part. The filter screen 30 is disposed on the annular transmission member 220.

[0096] The annular transmission component 220, under the action of the drive unit, achieves cyclic movement in a plane perpendicular to its length direction. This drives the filter screen 30 to cyclically move synchronously with the annular transmission component 220, forming a continuous and stable circulation path. On the one hand, this ensures that the filter screen 30 can accurately block the opening of the filter duct 60 when the air is returning from the downwind vent 1 and avoid the opening of the filter duct 60 when the air is exiting from the downwind vent 1. On the other hand, the cyclic movement characteristic allows the filter screen 30 to continuously pass through the self-cleaning component 40 without the need for additional complex motion switching mechanisms, thus providing stable cleaning conditions for the self-cleaning component 40 and ensuring that the dust accumulated on the filter screen 30 can be continuously and thoroughly cleaned. By setting the filter screen 30 on the annular transmission component 220, it is convenient for subsequent maintenance or replacement of the filter screen 30. Furthermore, the rigidity and transmission stability of the annular transmission component 220 can ensure the flatness of the filter screen 30 during movement.

[0097] It should be noted that the filter screen 30 is connected to the annular transmission component 220 by means of bonding or fasteners, including but not limited to adhesive bonding.

[0098] It should also be noted that, since the circulation drive component 20 is located above the filter duct 60, the opening on the side near the circulation drive component 20 is the upper opening of the filter duct 60.

[0099] like Figure 1 , Figure 2As shown, in some embodiments, the driving unit includes a first driving roller 2101, a second driving roller 2102, and a driving source; the first driving roller 2101 is rotatably mounted on the support assembly 10; the second driving roller 2102 is rotatably mounted on the support assembly 10, the first driving roller 2101 and the second driving roller 2102 are spaced apart along the width direction and are respectively located on both sides of the filter duct 60; the driving source is mounted on the support assembly 10, and the driving source is connected to the first driving roller 2101 and / or the second driving roller 2102 to drive the first driving roller 2101 and the second driving roller 2102 to rotate; wherein the first driving roller 2101 and the second driving roller 2102 mesh or frictionally contact the annular transmission member 220.

[0100] By arranging the first drive roller 2101 and the second drive roller 2102 at intervals along the width direction of the downwind outlet 1 and located on both sides of the downwind outlet 1, the movement trajectory of the annular transmission component 220 can correspond to the downwind outlet 1, ensuring that the filter screen 30 can block or avoid the downwind outlet 1 at a preset position when moving with the annular transmission component 220. Power transmission is achieved through the meshing or frictional contact between the drive rollers and the annular transmission component 220, resulting in high transmission efficiency and stable operation, effectively ensuring the smoothness of the movement of the annular transmission component 220 and the filter screen 30. In addition, the roller drive structure is simple and compact, occupies little space, and is easy to integrate into the air conditioner.

[0101] It should be noted that, as Figures 1-4 As shown, the first drive roller 2101 and the second drive roller 2102 mesh with the annular transmission member 220. Specifically, the annular transmission member 220 is a toothed belt, and the first drive roller 2101 and the second drive roller 2102 are provided with teeth that mesh with the toothed belt. In addition, the first drive roller 2101 and the second drive roller 2102 have the same diameter and move synchronously. Preferably, the first drive roller 2101 and the second drive roller 2102 rotate counterclockwise. Furthermore, the length of the annular transmission member 220 is less than the length of the filter screen 30 to ensure airflow. Multiple annular transmission members 220 can be arranged at intervals along the length direction to further reduce the length of each annular transmission member 220. However, by increasing the number of annular transmission members 220, the stability and reliability of the transmission of the filter screen 30 can be ensured while maintaining airflow.

[0102] It should also be noted that, such as Figure 2 As shown, the area on the annular transmission component 220 where the filter screen 30 is provided is smaller than the area on the annular transmission component 220 where the filter screen 30 is not provided.

[0103] It should also be noted that the driving source is a motor. There can be one motor, which is connected to the first driving roller 2101 or the second driving roller 2102. Of course, there can also be two motors, which are connected to the first driving roller 2101 and the second driving roller 2102 respectively.

[0104] It should also be noted that the shafts of the first drive roller 2101 and the second drive roller 2102 are rotatably mounted on the support assembly 10 via rolling bearings, and the output shaft of the motor is connected to the shafts, thereby driving the first drive roller 2101 and the second drive roller 2102 to rotate.

[0105] It should also be noted that the inner side of the annular transmission member 220 meshes or rubs with the first drive roller 2101 and the second drive roller 2102, and the filter screen 30 is disposed on the outer side of the annular transmission member 220.

[0106] like Figure 3 As shown, in some embodiments, the orthographic projection of the first drive roller 2101 and the orthographic projection of the opening of the filter duct 60 do not overlap on a plane perpendicular to the height direction; wherein, the central axis of the first drive roller 2101 and the adjacent side of the opening of the filter duct 60 have a predetermined distance in the width direction.

[0107] By ensuring that the orthographic projections of the first drive roller 2101 and the opening of the filter duct 60 do not overlap, the first drive roller 2101 avoids blocking the lower air outlet 1 in the height direction, thus preventing airflow loss due to obstruction by the first drive roller 2101 and ensuring the heat exchange and air delivery efficiency of the air conditioner. By setting a preset distance in a preset direction, sufficient clearance is reserved for the filter screen 30 to move with the annular transmission component 220, so that when the filter screen 30 avoids the opening of the filter duct 60, it can completely avoid obstructing the opening of the filter duct 60, preventing part of the filter screen 30 from remaining in the opening of the filter duct 60, and completely eliminating the potential risk of the filter screen 30 obstructing the opening of the filter duct 60.

[0108] It should be noted that, as Figure 3As shown, on a plane perpendicular to the height direction, the orthographic projection of the second drive roller 2102 overlaps with the orthographic projection of the opening of the filter duct 60. This arrangement makes fuller use of the limited space around the opening of the filter duct 60, avoiding an increase in the volume occupied by the filter structure due to the second drive roller 2102 being completely far away from the opening of the filter duct 60, thus improving compactness. At the same time, the partially overlapping positional relationship allows the second drive roller 2102 to support and guide the annular transmission member 220 closer to the opening area of ​​the filter duct 60. When the annular transmission member 220 drives the filter screen 30 to move to the opening area of ​​the filter duct 60, the movement trajectory will be more stable, preventing the annular transmission member 220 and the filter screen 30 from shaking or deviating at the opening of the filter duct 60 due to lack of close support or excessively long transmission trajectory, thus ensuring the stability of the filtration effect.

[0109] It should also be noted that the side adjacent to the opening of the filter duct 60 refers to the side of the opening of the filter duct 60 that is adjacent to the first drive roller 2101.

[0110] like Figure 3 As shown, in some embodiments, the opening width of the filter duct 60 is A, the width of the filter screen 30 is D, the diameter of the first drive roller 2101 is B, and the preset distance is C, satisfying the following relationship: A≤D≤π*B / 2+2*C.

[0111] The opening width A of the filter duct 60 is less than or equal to the width D of the filter screen 30, ensuring that the filter screen 30 can completely cover the entire width range of the downwind vent 1. This avoids unfiltered gaps in the opening of the filter duct 60 due to the filter screen 30 being too short, thus ensuring the air filtration effect during the return air phase of the downwind vent 1. The safety space reserved for the filter 30 by D≤π*B / 2+2*C is provided, where π*B / 2 is the half circumference length of the first drive roller 2101, corresponding to the maximum length that the filter 30 can fit when it wraps around the roller, and 2*C is the sum of the preset distances on both sides of the first drive roller 2101 and the side adjacent to the opening of the filter duct 60. This allows the filter 30 to completely retract into the hidden area around the first drive roller 2101 when the airflow flows out from the downwind outlet 1. This avoids the filter 30 from being partially located within the opening of the filter duct 60 due to its excessive length, which would obstruct the airflow and interfere with the airflow. This achieves complete concealment and does not obstruct the airflow from the downwind outlet 1, ensuring the airflow efficiency when the downwind outlet 1 is exposed.

[0112] It should be noted that the length of filter screen 30 is greater than the length of the opening of filter duct 60, thus ensuring the filtration effect.

[0113] It should also be noted that the opening width A of the filter duct 60 is the opening width of the second air outlet 1101.

[0114] like Figures 1-3 As shown, in some embodiments, the support component 10 includes a lower support member 120 and an upper support member 110; the lower support member 120 is disposed in the lower air outlet 1 and has a first air outlet 1201; the upper support member 110 is disposed in the lower support member 120 and has a second air outlet 1101, the second air outlet 1101 being connected to the first air outlet 1201 to jointly form a filter air duct 60; wherein, the circulation drive component 20 is disposed in the upper support member 110.

[0115] The lower support 120 and the upper support 110 form a split structure. The lower support 120 can be directly adapted and installed with the lower air vent 1, and the upper support 110 is nested inside the lower support 120. This allows for flexible adjustment of the specifications of the lower support 120 or the upper support 110 according to the size and structural differences of the lower air vent 1 of different models of air conditioners, without having to redesign the entire support assembly 10, thus improving versatility and flexibility.

[0116] It should be noted that the support assembly 10 also includes a cover plate, which covers the top of the lower support member 120, and the cover plate is provided with a through groove to ensure airflow in and out; wherein, the width of the through groove is greater than the opening width of the filter duct 60. In addition, in order to improve the sealing performance, a sealing element can be provided between the cover plate and the lower air outlet 1, and / or between the lower support member 120 and the lower air outlet 1.

[0117] It should also be noted that the width of the first air vent 1201 and the second air vent 1101 is not specifically limited in this application. For example, the width of the first air vent 1201 and the second air vent 1101 can be equal. In addition, it can be understood that the opening of the filter duct 60 covered by the filter screen 30 is the upper opening of the filter duct 60, that is, the upper opening of the second air vent 1101.

[0118] like Figure 3 , Figure 4 As shown, in some embodiments, the upper support 110 includes a main frame 1102 and a sub-frame 1103; a second air vent 1101 is disposed at the bottom of the main frame 1102; the sub-frame 1103 is disposed at the bottom of the main frame 1102, and the sub-frame 1103 and the second air vent 1101 are arranged at intervals in the width direction; wherein, a self-cleaning component 40 is disposed within the sub-frame 1103.

[0119] Functional partitioning is achieved by setting a main frame 1102 and a sub-frame 1103. The main frame 1102 is used for the installation and support of the airflow guidance and circulation drive component 20, and the sub-frame 1103 is used for the installation of the self-cleaning component 40. The self-cleaning function is completely separated from the airflow channel, which avoids the self-cleaning component 40 occupying the space of the filter duct 60, thus avoiding increased airflow resistance. It also avoids the dust cleaned up during the self-cleaning process falling into the duct and causing secondary pollution. At the same time, it ensures that the cleaning of the filter screen 30 of the self-cleaning component 40 is not disturbed by the airflow.

[0120] It should be noted that the main frame 1102 and the sub-frame 1103 are connected by means of integral molding, including but not limited to.

[0121] It should also be noted that the top of the main frame 1102 is open, and no components are installed to cover the filter duct 60.

[0122] like Figure 4 As shown, in some embodiments, the self-cleaning component 40 includes a brush 410 that abuts against the annular transmission member 220.

[0123] When the annular transmission component 220 drives the filter screen 30 to circulate with the first drive roller 2101, the contact between the brush 410 and the annular transmission component 220 can form a stable frictional force, which can scrape off dust, lint, and other impurities attached to the filter screen 30 in real time. Moreover, the contact state does not require additional power to drive it. It directly achieves passive synchronous cleaning by means of the movement of the annular transmission component 220, which reduces equipment wear and ensures that the cleaning process is combined with the movement of the filter screen 30, avoiding the accumulation of impurities due to cleaning lag. At the same time, the combination of the brush 410 and the annular transmission component 220 can also reduce structural redundancy, eliminating the need to design a complex drive mechanism and position adjustment mechanism for the brush 410.

[0124] It should be noted that, as Figure 4 As shown, the self-cleaning component 40 also includes a brush rod 420, and a brush 410 is fixed on the brush rod 420; the brush 410 and the annular transmission component 220 have an interference of about 2mm, thereby ensuring the dust removal effect.

[0125] It should also be noted that the brush 410 can be set at an angle or at a height. When the brush 410 is set at an angle, the angle between the brush 410 and the width direction is less than 90°. In addition, the brush 410 can be located directly below the first drive roller 2101 or there can be a certain distance between it and the first drive roller 2101. This application does not impose any specific restrictions.

[0126] In some embodiments, such as Figure 4 , Figure 5As shown, the filter structure includes a dust collection box 50, which covers the sub-frame 1103 and is detachably connected to the sub-frame 1103.

[0127] The covered dust collection box 50 can completely enclose the sub-frame 1103 and the self-cleaning component 40. When the self-cleaning component 40 brushes off the dust and lint on the filter screen 30, the dust collection box 50 can form a closed collection space to receive all the fallen impurities, preventing the impurities from drifting to the outside and eliminating the problem of impurities re-attaching to the filter screen 30 and contaminating the equipment after cleaning. With the detachable dust collection box 50, the user only needs to disassemble the dust collection box 50 to empty the impurities and clean the brush 410 and the dust collection box 50.

[0128] It should be noted that the dust collection box 50 is detachably connected to the sub-frame 1103 via a snap-fit ​​connection, including but not limited to such a method; for example, as Figure 5 As shown, a female buckle 510 is provided on the dust collection box 50, and a male buckle 1104 is provided on the secondary frame 1103.

[0129] It should also be noted that the lower support 120 and the dust collection box 50 are provided with grooves at their corresponding positions to facilitate the assembly and disassembly of the dust collection box 50.

[0130] like Figures 1-3 As shown, in some embodiments, the lower support 120 includes a bracket 1202, a fixing plate 1203, a partition 1204, and an air guide plate 1208; the fixing plate 1203 is disposed on the inner wall of the bracket 1202 in the width direction and extends in the width direction; the partition 1204 is disposed at the bottom of the bracket 1202 and extends in the height direction, and the partition 1204 and the fixing plate 1203 have a gap in the width direction to form a first air vent 1. 201, and the partition 1204 and the fixing plate 1203 together divide the bracket 1202 into a first chamber 1205, a second chamber 1206 and a third chamber 1207 that are connected; the air guide plate 1208 is rotatably disposed in the first chamber 1205; wherein, the main frame 1102 is located in the second chamber 1206, the sub-frame 1103 is located in the third chamber 1207, and the main frame 1102 abuts against the fixing plate 1203 and the partition 1204 respectively.

[0131] The fixed plate 1203 and the partition plate 1204 are spaced apart within the bracket 1202 to form the first air outlet 1201, while dividing the bracket 1202 into three interconnected chambers. The rotatable air guide plate 1208 of the first chamber 1205 can guide the airflow to accurately enter the first air outlet 1201 during return air and adjust the airflow direction during outlet air. Combined with the filter screen 30 avoidance design, it improves the uniformity of air outlet air and achieves efficient synergy between air guidance and filtration. The three chambers also respectively house the air guide plate 1208, the main frame 1102 and the secondary frame 1103, making the functional areas of each component independent and avoiding self-cleaning dust contamination of other components or interference between components. The main frame 1102 abuts against the fixed plate 1203 and the partition plate 1204 to form a bidirectional positioning, effectively preventing the upper support 110 from shaking and shifting, and ensuring stable operation.

[0132] It should be noted that there are multiple air guide plates 1208, which are arranged at intervals along the width direction.

[0133] It should also be noted that the main frame 1102 is provided with limiting steps on both sides in the width direction, and the limiting steps abut against the top of the hanging bracket 1202.

[0134] Example 4

[0135] This application also provides an air conditioner, including a side air vent 2, a down air vent 1, and a filter structure as described in any of the previous embodiments, wherein the filter structure is disposed within the down air vent 1.

[0136] By setting up downdraft 1 and side vent 2, it is possible to adapt to the physical characteristics of different airflows (cold air sinks, hot air rises). In a cooling scenario, cold air tends to sink due to its high density. Downdraft 1 can be used for air return and side vent 2 for air outlet, quickly filling the indoor space and shortening the cooling time. In a heating scenario, hot air tends to rise due to its low density. Side vent 2 can be used for air return and downdraft 1 for air outlet, allowing the hot airflow to be distributed more evenly throughout the room.

[0137] It should be noted that when the lower air vent 1 returns air and the side air vent 2 exits air, the filter screen 30 of the filter structure blocks the lower air vent 1; when the lower air vent 1 exits air and the side air vent 2 returns air, the filter screen 30 of the filter structure avoids the lower air vent 1. By filtering the air when the lower air vent 1 returns air and avoiding the air when it exits air, the filter structure can adapt to different airflow modes and operating states. This solves the problem that existing traditional air conditioners only have a single function of returning or exiting airflow and cannot switch between having and not having a filter screen 30.

[0138] It should also be noted that, such as Figure 1 , Figure 2 As shown, the side air vent 2 is located on one side of the air conditioner in the width direction, and the bottom air vent 1 is located at the bottom of the air conditioner. Both the side air vent 2 and the bottom air vent 1 are connected to the air duct inside the air conditioner.

[0139] It should also be noted that a filter screen is also installed on the side air outlet 2. When the air flows downward to the side, the side air outlet 2 acts as an air outlet, and the filter screen is retracted so as not to block the side airflow. When the air flows downward to the side, the filter screen of the side air outlet 2 is opened to block the side air outlet 2 and achieve dust filtration.

[0140] It should be understood that the terminology used herein is for the purpose of describing particular exemplary embodiments only and is not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms “a,” “an,” and “” used herein may also indicate the inclusion of the plural forms. The terms “comprising,” “including,” “containing,” and “having” are inclusive and therefore indicate the presence of the stated features, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, steps, operations, elements, components, and / or combinations thereof. The method steps, processes, and operations described herein are not construed as requiring them to be performed in a particular order described or illustrated, unless the order of performance is explicitly indicated. It should also be understood that additional or alternative steps may be used.

[0141] Although terms such as first, second, third, etc., may be used in this document to describe multiple elements, components, regions, layers, and / or segments, these elements, components, regions, layers, and / or segments should not be limited by these terms. These terms may be used only to distinguish one element, component, region, layer, or segment from another. Unless the context clearly indicates otherwise, terms such as "first," "second," and other numerical terms used herein do not imply order or sequence. Therefore, the first element, component, region, layer, or segment discussed below may be referred to as the second element, component, region, layer, or segment without departing from the teachings of the exemplary embodiments.

[0142] The above are merely specific embodiments of this utility model, enabling those skilled in the art to understand or implement it. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this utility model. Therefore, this utility model is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features claimed herein.

Claims

1. A filter structure, characterized by, include: A support assembly is disposed inside the lower air vent of the air conditioner. The support assembly is provided with a filter air duct that communicates with the lower air vent. The filter air duct and the opening of the lower air vent are disposed opposite each other in the height direction. A cyclic drive component is disposed within the support component; A filter screen is disposed on the circulation drive assembly, which is configured to drive the filter screen to move so that the filter screen blocks the opening of the filter duct when the air returns from the downwind vent and avoids the opening of the filter duct when the air exits from the downwind vent. A self-cleaning component is disposed on the support component, and the self-cleaning component is configured to clean the filter screen as it passes through.

2. The filter structure of claim 1, wherein, The circulation drive assembly is disposed above the filter duct, and the circulation drive assembly includes: The drive unit is disposed on the support assembly; A ring-shaped transmission component is disposed on the drive unit, and the ring-shaped transmission component is configured to circulate in a plane perpendicular to the length direction under the drive of the drive unit; The filter screen is disposed on the annular transmission component.

3. The filter structure of claim 2, wherein, The drive unit includes: A first drive roller is rotatably mounted on the support assembly; The second drive roller is rotatably mounted on the support assembly. The first drive roller and the second drive roller are arranged at intervals along the width direction and are respectively located on both sides of the filter duct. A drive source is disposed on the support assembly, and the drive source is connected to the first drive roller and / or the second drive roller to drive the first drive roller and the second drive roller to rotate. The first drive roller and the second drive roller are engaged or in frictional contact with the annular transmission component.

4. The filter structure of claim 3, wherein, On a plane perpendicular to the height direction, the orthographic projection of the first drive roller does not overlap with the orthographic projection of the opening of the filter duct; wherein, the central axis of the first drive roller and the adjacent side of the opening of the filter duct have a predetermined distance in the width direction.

5. The filter structure of claim 4, wherein, The opening width of the filter duct is A, the width of the filter screen is D, the diameter of the first drive roller is B, and the preset distance is C, satisfying the following relationship: A≤D≤π*B / 2+2*C.

6. The filter structure according to any one of claims 3-5, characterized in that, The support components include: A lower support member is disposed within the lower air vent, and the lower support member is provided with a first air vent. An upper support member is disposed within the lower support member. The upper support member is provided with a second air vent, which is connected to the first air vent to form the filter air duct together. The cyclic drive component is disposed within the upper support member.

7. The filter structure of claim 6, wherein, The upper support member includes: The main frame, with the second air vent located at the bottom of the main frame; A sub-frame is disposed at the bottom of the main frame, and the sub-frame and the second air outlet are arranged at intervals in the width direction; The self-cleaning component is disposed within the sub-frame.

8. The filter structure of claim 7, wherein, The self-cleaning component includes a brush that abuts against the annular transmission member.

9. The filter structure of claim 8, wherein, The filter structure includes a dust collection box that covers the sub-frame and is detachably connected to the sub-frame.

10. The filter structure according to any one of claims 7-9, characterized in that, The lower support member includes: Hanging rack; A fixing plate is disposed on the inner wall of the bracket in the width direction, and the fixing plate extends along the width direction; A partition is disposed at the bottom of the bracket and extends along the height direction. The partition and the fixing plate are spaced apart in the width direction to form the first air vent. The partition and the fixing plate together divide the bracket into a first chamber, a second chamber and a third chamber that are connected to each other. An air guide plate is rotatably disposed in the first chamber; The main frame is located in the second chamber, the secondary frame is located in the third chamber, and the main frame abuts against the fixing plate and the partition plate respectively.

11. An air conditioner characterized by comprising: It includes a side air vent, a downwind vent, and a filter structure as described in any one of claims 1-10, wherein the filter structure is disposed within the downwind vent.

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