Air conditioner indoor unit and air conditioner

Abstract

This application relates to the field of air conditioner technology and discloses an indoor unit of an air conditioner. The indoor unit includes: a housing with an air inlet; a support frame corresponding to the air inlet; a filter movably disposed on the support frame, the filter including a flexible frame and a mesh screen, the flexible frame including a first region, a second region, and a third region connected in sequence, the first region and the second region being disposed opposite each other on two sides of the support frame along the air inlet direction, the mesh screen being disposed in the first region; a roller assembly including a first roller and a second roller disposed on the same end side of the support frame, the first region of the flexible frame being connected to the first roller, and the third region of the flexible frame being connected to the second roller; a drive assembly drivingly connected to the roller assembly to drive the roller assembly to move the filter screen relative to the air inlet; and a cleaning component corresponding to the mesh screen, contacting the mesh screen during the movement of the filter screen to clean the mesh screen. This application also discloses an air conditioner.

Description

Technical Field

[0001] This application relates to the field of air conditioner technology, specifically to an indoor unit of an air conditioner and an air conditioner. Background Technology

[0002] During air conditioner operation, fine particles such as dust, hair, and dander in the air are trapped by the filter and gradually accumulate on it. Traditional methods of cleaning the filter are quite cumbersome, usually requiring manual opening of the front panel, removal of the filter, and then cleaning with a brush and water. After cleaning and drying, the filter is then reinstalled in its original position, making the whole process time-consuming and laborious.

[0003] Related technology discloses an indoor air conditioning unit, which includes a housing, an indoor heat exchanger, a filter, and a cleaning device for removing debris from the filter. The housing has an indoor air inlet and an indoor air outlet. The filter is located between the indoor air inlet and the indoor heat exchanger to filter debris in the indoor air. The self-cleaning device includes a base, a roller, and a cleaning brush. The base is located on the outermost side of the self-cleaning device, and a cleaning chamber is defined within the base. The roller is rotatably connected to the base and to the filter. Rotation of the roller moves the filter. The cleaning brush is rotatably or fixedly connected to the base, and at least partially contacts the filter. The roller includes a first roller and a second roller. The second roller drives the first roller to rotate, causing the filter connected between the first and second rollers to move. This allows relative friction between the cleaning brush and the roller, thereby brushing off impurities from the filter.

[0004] In the process of implementing the embodiments of this disclosure, at least the following problems were found in the related art:

[0005] In related technologies, the filter screen is supported by a support frame, and the first and second rollers are located on the same side of the support frame. The first end of the filter screen is connected to the first roller, and after the filter screen passes around the support frame, the second end of the filter screen is connected to the second roller, so that the filter screen forms a double layer of mesh on both sides of the support frame, which will affect the air intake effect of the air conditioner.

[0006] It should be noted that the information disclosed in the background section above is only used to enhance the understanding of the background of this application, and therefore may include information that does not constitute prior art known to those skilled in the art. Utility Model Content

[0007] To provide a basic understanding of some aspects of the disclosed embodiments, a brief summary is given below. This summary is not intended as a general commentary, nor is it intended to identify key / important components or describe the scope of protection of these embodiments, but rather as a prelude to the detailed description that follows.

[0008] This disclosure provides an indoor unit and an air conditioner to improve the air intake effect of the air conditioner while achieving filter self-cleaning.

[0009] According to a first aspect of the present invention, an indoor unit of an air conditioner is provided, comprising a housing, a support frame, a filter, a roller assembly, a drive assembly, and a cleaning component. The housing has an air inlet; the support frame is correspondingly disposed with respect to the air inlet; the filter is movably disposed on the support frame, and the filter includes a flexible frame and a mesh screen. The flexible frame includes a first region, a second region, and a third region connected in sequence. The first region and the second region are disposed opposite to each other on two sides of the support frame along the air inlet direction, and the mesh screen is disposed in the first region; the roller assembly includes a first roller and a second roller disposed on the same end side of the support frame, the first region of the flexible frame is connected to the first roller, and the third region of the flexible frame is connected to the second roller; the drive assembly is drivenly connected to the roller assembly to drive the roller assembly to move the filter screen relative to the air inlet; the cleaning component is correspondingly disposed with respect to the mesh screen and contacts the mesh screen during the movement of the filter screen to clean the mesh screen.

[0010] Optionally, the drive assembly is driven to both the first and second reels. In the self-cleaning state, the drive assembly drives the first reel to rotate to reel in the first area of ​​the flexible frame, while simultaneously driving the second reel to rotate to release the third area of ​​the flexible frame. At the end of the self-cleaning process, the drive assembly drives the first reel to rotate to release the first area of ​​the flexible frame, while simultaneously driving the second reel to rotate to reel in the third area of ​​the flexible frame.

[0011] Optionally, the drive assembly is also connected to the cleaning component drive. In the self-cleaning state, the drive assembly drives the cleaning component to rotate at a first speed and contact the mesh. When the self-cleaning ends, the drive assembly drives the cleaning component to rotate at a second speed or stops rotating.

[0012] Optionally, the drive assembly includes a gear set and a drive motor. The gear set is connected to the first reel, the second reel, and the cleaning component in a transmission connection. The drive motor is connected to the gear set in a drive connection, and drives the first reel, the second reel, and the cleaning component to rotate through the gear set.

[0013] Optionally, the gear set includes a drive gear, a first gear, and a second gear. The drive gear is driven by a drive motor. The first gear is driven by both the drive gear and the first spool to drive the first spool to rotate. The second gear is driven by both the drive gear and the second spool to drive the second spool to rotate.

[0014] Optionally, the gear set also includes a third gear, which is connected to both the drive gear and the cleaning component to drive the cleaning component to rotate; wherein the transmission ratio between the drive gear and the third gear is greater than the transmission ratio between the drive gear and the first gear, so that the rotational speed of the third gear is greater than the rotational speed of the first gear.

[0015] Optionally, a position detection component is used to detect the position of the filter screen; a controller is connected to both the position detection component and the drive component to control the drive component to drive the roller assembly to reset the filter screen to the initial position when self-cleaning ends and the filter screen is not in the initial position; wherein, when the filter screen is in the initial position, the first area of ​​the flexible frame and the mesh correspond to the air inlet.

[0016] Optionally, the position detection component includes: a position marker, disposed on the filter and moving synchronously with the filter; and a position sensor, disposed on the support frame and corresponding to the position marker; wherein, when the filter is in the initial position, the position marker triggers the position sensor to generate a position signal, and the controller receives the position signal to confirm that the filter is in the initial position.

[0017] Optionally, the position marking part includes a boss structure, which is disposed on the flexible frame; the position sensing part includes a pressing structure, which is disposed on the support frame and is correspondingly disposed to the boss structure; wherein, when the filter is in the initial position, the boss structure and the pressing structure contact each other to generate a positioning signal.

[0018] According to a second aspect of the present invention, an air conditioner is provided, including an indoor unit of an air conditioner as described in any of the above-disclosed embodiments.

[0019] The indoor unit and air conditioner provided in this disclosure can achieve the following technical effects:

[0020] By installing a mesh screen only in the first area of ​​the flexible frame and leaving the second area un-meshed, a single-layer mesh structure can be formed. This reduces the mesh screen's resistance to the incoming airflow, increases the air intake volume, and thus improves the air conditioner's energy efficiency. The single-layer mesh structure also effectively reduces the area of ​​dirt accumulation on the exposed mesh screen. Simultaneously, as the drive assembly drives the roller assembly to move the filter screen relative to the air inlet, the cleaning component comes into contact with the mesh screen, cleaning it and achieving self-cleaning of the mesh screen.

[0021] The above general description and the description below are exemplary and illustrative only and are not intended to limit this application. Attached Figure Description

[0022] One or more embodiments are illustrated by way of example with reference to the accompanying drawings. These illustrations and drawings do not constitute a limitation on the embodiments. Elements having the same reference numerals in the drawings are shown as similar elements. The drawings are not to be scaled. And wherein:

[0023] Figure 1 This is a schematic diagram of the structure of an indoor unit of an air conditioner provided in an embodiment of this disclosure;

[0024] Figure 2 yes Figure 1 The diagram shows a cross-sectional view along direction AA, where the arrows indicate the air intake direction.

[0025] Figure 3 This is a schematic diagram of the structure of another indoor unit of an air conditioner provided in an embodiment of this disclosure;

[0026] Figure 4 This is a schematic diagram of the structure of a filter provided in an embodiment of this disclosure;

[0027] Figure 5 This is a schematic diagram of the structure of another indoor unit of an air conditioner provided in an embodiment of this disclosure;

[0028] Figure 6 yes Figure 5 An enlarged schematic diagram of part B is shown below;

[0029] Figure 7 This is a schematic diagram of the structure of another indoor unit of an air conditioner provided in an embodiment of this disclosure;

[0030] Figure 8 yes Figure 7 An enlarged schematic diagram of section C shown.

[0031] Figure label:

[0032] 10: Housing; 11: Air inlet;

[0033] 20: Support frame; 21: First end; 22: Second end;

[0034] 30: Filter screen; 31: Flexible frame; 311: First zone; 312: Second zone; 313: Third zone; 32: Mesh screen;

[0035] 40: Reel assembly; 41: First reel; 42: Second reel;

[0036] 50: Drive assembly; 51: Gear set; 511: Drive gear; 512: First gear; 513: Second gear; 514: Third gear; 515: Fourth gear; 52: Drive motor;

[0037] 60: Cleaning component; 61: Dust collection box;

[0038] 70: Position detection component; 71: Position marking part; 711: Boss structure; 72: Position sensing part; 721: Tablet pressing structure. Detailed Implementation

[0039] To provide a more detailed understanding of the features and technical content of the embodiments of this disclosure, the implementation of the embodiments of this disclosure will be described in detail below with reference to the accompanying drawings. The accompanying drawings are for illustrative purposes only and are not intended to limit the embodiments of this disclosure. In the following technical description, for ease of explanation, several details are used to provide a full understanding of the disclosed embodiments. However, one or more embodiments may still be implemented without these details. In other cases, well-known structures and devices may be simplified in their depiction to simplify the drawings.

[0040] The terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this disclosure are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for the embodiments of this disclosure described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion.

[0041] In this disclosure, the terms "upper," "lower," "inner," "middle," "outer," "front," and "rear," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for better description of the embodiments of this disclosure and their implementations, and are not intended to limit the indicated devices, elements, or components to having a specific orientation, or to require them to be constructed and operated in a specific orientation. Furthermore, some of the aforementioned terms may be used to indicate other meanings besides orientation or positional relationship; for example, the term "upper" may in some cases indicate a dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in the embodiments of this disclosure according to the specific circumstances.

[0042] Furthermore, the terms "set up," "connect," and "fix" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this disclosure according to the specific circumstances.

[0043] Unless otherwise stated, the term "multiple" means two or more.

[0044] In this embodiment of the disclosure, the character " / " indicates that the objects before and after it are in an "or" relationship. For example, A / B means: A or B.

[0045] The term "and / or" describes an association between objects, indicating that three relationships can exist. For example, A and / or B means: A or B, or A and B.

[0046] It should be noted that, unless otherwise specified, the embodiments and features described in the present disclosure can be combined with each other.

[0047] Combination Figure 1-8 As shown, this embodiment of the present disclosure provides an indoor unit of an air conditioner, including a housing 10, a support frame 20, a filter 30, a roller assembly 40, a drive assembly 50, and a cleaning component 60.

[0048] The housing 10 is provided with an air inlet 11; the support frame 20 is correspondingly provided with the air inlet 11; the filter 30 is movably provided with the support frame 20, and the filter 30 includes a flexible frame 31 and a mesh 32. The flexible frame 31 includes a first region 311, a second region 312 and a third region 313 connected in sequence. The first region 311 and the second region 312 are arranged opposite to each other on two sides of the support frame 20 along the air inlet direction of the air inlet 11, and the mesh 32 is provided in the first region 311; the roller assembly 40 includes a roller assembly provided with the support frame 20. The first spool 41 and the second spool 42 are on the same end side of the frame 20. The first region 311 of the flexible frame 31 is wound around and connected to the first spool 41, and the third region 313 of the flexible frame 31 is wound around and connected to the second spool 42. The drive assembly 50 is drivenly connected to the spool assembly 40 to drive the spool assembly 40 to move the filter screen 30 relative to the air inlet 11. The cleaning component 60 is correspondingly arranged with the screen 32. The cleaning component 60 contacts the screen 32 during the movement of the filter screen 30 to clean the screen 32.

[0049] air intake direction such as Figure 2 The direction indicated by the middle arrow.

[0050] Combination Figure 4 As shown, the first region 311 of the flexible frame 31 is provided with a mesh 31, while the second region 312 and the third region 313 of the flexible frame 31 are not provided with filters. This can reduce the resistance to the airflow and also reduce production costs.

[0051] The filter screen 30 is tensioned between the first roller 41 and the second roller 42. The flexible frame 31 has a hollow frame structure, which reduces resistance to the incoming airflow. The first region 311 and the second region 312 of the flexible frame 31 correspond to the air inlet 11. The first region 311 and the second region 312 are arranged opposite each other on both sides of the support frame 20 along the air inlet direction of the air inlet 11, and the mesh 32 is located in the first region 311. When the incoming airflow flows into the housing 10 from the air inlet 11, it flows through the first region 311 and the second region 312 in sequence. The incoming airflow only needs to be filtered by the single layer of mesh 32 located in the first region 311.

[0052] The first roller 41 and the second roller 42 are located on the same end of the supporting frame 20. The first region 311 of the flexible frame 31 is wound around and connected to the first roller 41, and the third region 313 of the flexible frame 31 is wound around and connected to the second roller 42, so that the flexible frame 31 can drive the mesh 32 to reciprocate between the first roller 41 and the second roller 42. When the air conditioner is working normally, the first region 311 of the flexible frame 31 and the mesh 32 correspond to the air inlet 11 and can filter the incoming airflow. When the air conditioner performs self-cleaning of the filter 30, the air conditioner stops heating or cooling, and the drive assembly 50 drives the roller assembly 40 to move the filter 30 relative to the air inlet 11, and cleans it by contacting the mesh 32 with the cleaning component 60. The cleaning component 60 can be a brush or a sponge, etc.

[0053] The indoor unit of the air conditioner provided in this embodiment of the present disclosure forms a single-layer mesh 32 structure by providing a mesh 32 only in the first region 311 of the flexible frame 31 and not providing a mesh 32 in the second region 312 of the flexible frame 31. This reduces the wind resistance of the mesh 32 to the airflow, increases the air intake volume, and thus improves the energy efficiency of the air conditioner. The single-layer mesh 32 structure also effectively reduces the area of ​​dirt on the exposed mesh 32. At the same time, when the drive assembly 50 drives the roller assembly 40 to move the filter 30 relative to the air inlet 11, the cleaning component 60 comes into contact with the mesh 32 and can clean the mesh 32, thereby achieving self-cleaning of the mesh 32.

[0054] Optionally, combined Figure 5 As shown, the first roller 41 and the second roller 42 are located on the first end side of the support frame 20. When the air conditioner is working normally, the filter 30 is located in the initial position, and the connection between the first region 311 and the second region 312 is located on the second end side of the support frame 20.

[0055] The first and second ends of the support frame 20 are arranged opposite each other. A first reel 41 and a second reel 42 are located on the first end of the support frame 20. The first region 311, the second region 312, and the third region 313 of the flexible frame 31 are connected in sequence. The flexible frame 31 is arranged around the support frame 20. The first region 311 of the flexible frame 31 can be wound and connected to the first reel 41, the flexible frame 31 passes around the second end of the support frame 20, and the third region 313 of the flexible frame 31 can be wound and connected to the second reel 42.

[0056] When the filter 30 is not cleaned or has completed self-cleaning, the air conditioner is in a non-self-cleaning state. At this time, the filter 30 is in the initial position, and the air conditioner can work normally. When the filter 30 is in the initial position, the third region 313 of the flexible frame 31 is pre-wound to the second roll 42, and the first region 311 of the flexible frame 31 is in the released state. At this time, the connection between the first region 311 and the second region 312 is located on the second end side of the support frame 20. The first region 311 and the second region 312 of the flexible frame 31 are arranged opposite to each other on both sides of the support frame 20 along the air inlet 11 and are both corresponding to the air inlet 11. The mesh 32 in the first region 311 is used to intercept debris in the incoming airflow.

[0057] Optionally, combined Figure 3 , Figure 5 and Figure 6 As shown, the cleaning component 60 is correspondingly arranged with the first roll 41. The cleaning component 60 contacts the screen 32 during the process of the first roll 41 winding the frame into the first area 311 and the screen 32 to clean the screen 32.

[0058] The mesh screen 32 is located in the first area 311 of the frame, and one end of the first area 311 is connected to the first roller 41. The cleaning component 60 is correspondingly arranged with the first roller 41, so that the cleaning component 60 can contact the mesh screen 32 at the initial stage when the first roller 41 starts to roll up the mesh screen 32, and clean synchronously with the winding process of the mesh screen 32. This enables dynamic cleaning of the entire width of the mesh screen 32, improving the comprehensiveness of cleaning.

[0059] Optionally, the length of the third region 313 is greater than or equal to the length of the first region 311.

[0060] When the filter screen 30 is in its initial position, the third region 313 of the flexible frame 31 is pre-wound onto the second reel 42. When the length of the third region 313 is greater than or equal to the length of the first region 311, during the self-cleaning process of the filter screen 30, the stroke of the second reel 42 releasing the third region 313 perfectly matches the stroke of the first reel 41 winding up the first region 311, ensuring that the mesh 32 is effectively covered by the cleaning component 60 throughout the entire self-cleaning stroke. When the length of the third region 313 is greater than the length of the first region 311, the redundant length of the third region 313 provides a buffer margin for the movement of the reel assembly 40, reducing the tension of the mesh 32 during winding.

[0061] Optionally, the flexible frame 31 is made of a flexible, foldable material.

[0062] The flexible and foldable material can not only provide support for the mesh 32 and prevent the mesh 32 from deforming during use, but also smoothly roll up or release synchronously with the mesh 32.

[0063] Optionally, when the air conditioner is working normally, the first region 311 of the flexible frame 31 is located on the side of the support frame 20 away from the inside of the housing 10, and the second region 312 of the flexible frame 31 is located on the side of the support frame 20 facing the inside of the housing 10.

[0064] When the air conditioner is working normally, the first region 311 of the flexible frame 31 is located on the side of the support frame 20 away from the inside of the housing 10, that is, the side close to the air inlet 11. This allows the mesh 32 located in the first region 311 to effectively filter the air flowing in from the air inlet 11, preventing dust and other impurities from entering the inside of the housing 10. Taking a wall-mounted air conditioner as an example, the air inlet 11 of the air conditioner is located at the top of the housing 10, and the support frame 20 is located inside the housing 10 corresponding to the air inlet 11. When the air conditioner is working normally, the first region 311 of the flexible frame 31 and the mesh 32 are located on the top of the support frame 20 near the air inlet 11, and the second region 312 of the flexible frame 31 is located on the bottom of the support frame 20 facing the inside of the housing 10. At this time, the second region 312 of the flexible frame 31 is directly below the first region 311.

[0065] Optionally, combined Figure 3 As shown, the drive assembly 50 is driven to both the first spool 41 and the second spool 42. In the self-cleaning state, the drive assembly 50 drives the first spool 41 to rotate to wind up the first region 311 of the flexible frame 31, while simultaneously driving the second spool 42 to rotate to release the third region 313 of the flexible frame 31. When the self-cleaning ends, the drive assembly 50 drives the first spool 41 to rotate to release the first region 311 of the flexible frame 31, while simultaneously driving the second spool 42 to rotate to wind up the third region 313 of the flexible frame 31.

[0066] By synchronously driving the first roller 41 and the second roller 42 through the drive component 50, the filter screen 30 can be driven to reciprocate, thereby enabling the screen 32 to self-clean and reset.

[0067] When the air conditioner is working normally, the first region 311 and the second region 312 of the flexible frame 31 are located on opposite sides of the support frame 20 along the air intake direction of the air inlet 11. At this time, the mesh 32 located in the first region 311 corresponds to the air inlet 11 and can filter the incoming airflow.

[0068] In self-cleaning mode, the drive assembly 50 drives the first roller 41 to rotate forward to wind up the first region 311 of the flexible frame 31 and the mesh 32. Simultaneously, it drives the second roller 42 to rotate to release the third region 313 of the flexible frame 31, thereby causing the filter screen 30 to move towards the first roller 41 as a whole. While the first roller 41 winds up the mesh 32, the cleaning component 60 comes into contact with the mesh 32, achieving self-cleaning of the mesh 32. The simultaneous winding at one end and releasing at the other end of the flexible frame 31 allows the mesh 32 to continuously pass through the cleaning component 60 for cleaning, thereby improving the cleaning efficiency of the mesh 32.

[0069] At the end of the self-cleaning process, the drive assembly 50 drives the first roller 41 to rotate in the opposite direction to release the first region 311 of the flexible frame 31, while simultaneously driving the second roller 42 to rotate to wind up the third region 313 of the flexible frame 31, thereby causing the filter 30 to move towards the second roller 42 as a whole. This winding up at one end of the flexible frame 31 while releasing at the other allows the filter 30 to return to its initial position, maintaining normal airflow into the indoor unit. During the winding up of the third region 313 of the flexible frame 31 by the second roller 42, the cleaning component 60 can continue to contact the mesh 32 of the first region 311 of the flexible frame 31 for deep cleaning. The cleaning component 60 can also separate from the mesh 32 of the first region 311 of the flexible frame 31, allowing the filter 30 to quickly return to its initial position.

[0070] Here, "forward" and "reverse" refer to the first spool 41 achieving winding and unwinding through two opposite rotational directions. "Forward" can be either clockwise or counterclockwise.

[0071] Optionally, combined Figure 3 and Figure 5 As shown, the drive assembly 50 is also driven to connect with the cleaning component 60. In the self-cleaning state, the drive assembly 50 drives the cleaning component 60 to rotate at a first speed and contact the mesh 32. When the self-cleaning ends, the drive assembly 50 drives the cleaning component 60 to rotate at a second speed or stops rotating.

[0072] In self-cleaning mode, the drive assembly 50 drives the cleaning component 60 to rotate at a first rotational speed and maintain contact with the screen 32. This results in a better relative speed between the cleaning component 60 and the surface of the screen 32, thereby improving the cleaning effect of the cleaning component 60 on the screen 32. At the same time, the continuous contact between the cleaning component 60 and the screen 32, combined with the movement of the filter 30, ensures that the entire surface of the screen 32 is effectively cleaned, thus avoiding cleaning blind spots.

[0073] When self-cleaning is complete, the drive assembly 50 can drive the cleaning component 60 to stop rotating, thus avoiding the additional energy consumption generated by the rotation of the cleaning component 60 after self-cleaning. The drive assembly 50 can also drive the cleaning component 60 to rotate at a second speed for secondary cleaning of the mesh 32.

[0074] Optionally, the second rotational speed is less than or equal to the first rotational speed.

[0075] The second rotational speed can be equal to the first rotational speed, so that the cleaning component 60 maintains a stable operating speed and contact with the mesh 32 throughout the self-cleaning process and the reset phase after self-cleaning. This ensures a constant relative speed between the cleaning component 60 and the mesh 32, avoiding mechanical stress and noise caused by frequent acceleration and deceleration of the drive motor 52. Alternatively, the second rotational speed can be less than the first rotational speed, so that the rotational speed of the cleaning component 60 at the end of self-cleaning is lower than its speed during the cleaning process. At the end of self-cleaning, the drive assembly 50 drives the cleaning component 60 to rotate at a lower second rotational speed, enabling a light secondary cleaning of the mesh 32 while reducing power consumption compared to the first rotational speed, thus balancing cleaning effectiveness and energy saving.

[0076] The drive assembly 50 is driven by both the first roller 41 and the second roller 42, and the cleaning component 60. It can drive the cleaning component 60 to rotate simultaneously with the rotation of the first roller 41 and the second roller 42. This allows the cleaning component 60 to clean the screen 32 at an appropriate speed and force during the screen's movement, improving cleaning efficiency. Alternatively, the cleaning component 60 can be driven independently of the drive assembly 50, with the screen 32 rotating as it moves. This simplifies the structure of the drive assembly 50.

[0077] Optionally, combined Figure 2 and Figure 3 As shown, the drive assembly 50 includes a gear set 51 and a drive motor 52. The gear set 51 is connected to the first reel 41, the second reel 42 and the cleaning component 60. The drive motor 52 is connected to the gear set 51 and drives the first reel 41, the second reel 42 and the cleaning component 60 to rotate through the gear set 51.

[0078] The drive motor 52 drives the gear set 51 to rotate in opposite directions via forward and reverse rotation, enabling the filter screen 30 to perform self-cleaning and resetting functions. By coordinating the transmission of a single drive motor 52 and the gear set 51, the driving functions of the first roller 41, the second roller 42, and the cleaning component 60 are integrated into the same power system, which reduces the number of drive components and improves space utilization.

[0079] Optionally, combined Figure 3As shown, the gear set 51 includes a drive gear 511, a first gear 512, and a second gear 513. The drive gear 511 is driven by the drive motor 52. The first gear 512 is driven by both the drive gear 511 and the first spool 41 to drive the first spool 41 to rotate. The second gear 513 is driven by both the drive gear 511 and the second spool 42 to drive the second spool 42 to rotate.

[0080] The drive gear 511 can be directly meshed with the first gear 512, or it can be indirectly connected to the first gear 512 by adding an intermediate gear or other means. The drive gear 511 can be directly meshed with the second gear 513 by adding an intermediate gear or other means, or it can be indirectly connected to the second gear 513.

[0081] Optionally, combined Figure 3 As shown, the gear set 51 also includes a fourth gear 515, which is located between the first gear 512 and the second gear 513. The fourth gear 515 meshes with both the first gear 512 and the second gear 513 so that the first gear 512 and the second gear 513 rotate in the same direction, thereby driving the first spool 41 and the second spool 42 to rotate in the same direction.

[0082] The first gear 512 is connected to the first spool 41, the second gear 513 is connected to the second spool 42, and the fourth gear 515 meshes with both, causing the first gear 512 and the second gear 513 to rotate in the same direction, thereby driving the first spool 41 and the second spool 42 to rotate in the same direction. This gear set 51 design enables the first spool 41 and the second spool 42 to maintain synchronization and coordination during movement, thus allowing the mesh 32 to move smoothly.

[0083] Optionally, combined Figure 3 As shown, the gear set 51 also includes a third gear 514, which is connected to both the drive gear 511 and the cleaning component 60 to drive the cleaning component 60 to rotate; wherein, the transmission ratio between the drive gear 511 and the third gear 514 is greater than the transmission ratio between the drive gear 511 and the first gear 512, so that the rotational speed of the third gear 514 is greater than the rotational speed of the first gear 512.

[0084] The drive motor 52 drives the active transmission gear 511 to rotate, which in turn drives the third gear 514 to rotate, thereby causing the cleaning component 60 to rotate. During the self-cleaning process of the filter screen 30, the cleaning component 60 rotates and cleans simultaneously with the movement of the filter screen 30, improving the cleaning effect. The transmission ratio between the active transmission gear 511 and the third gear 514 is greater than the transmission ratio between the active transmission gear 511 and the first gear 512, making the rotational speed of the third gear 514 greater than that of the first gear 512. This design allows the cleaning component 60 to rotate at a faster speed when the filter screen 30 is in motion, thus more effectively cleaning impurities from the screen 32.

[0085] Optionally, the drive gear 511 is coaxially arranged with the motor shaft of the drive motor 52, the first gear 512 is coaxially arranged with the first reel 41, the second gear 513 is coaxially arranged with the second reel 42, and the third gear 514 is coaxially arranged with the cleaning component 60.

[0086] This ensures that the rotation direction of the drive gear 511 is the same as that of the motor shaft of the drive motor 52, the rotation direction of the first gear 512 is the same as that of the first roller 41, the rotation direction of the second gear 513 is the same as that of the second roller 42, and the rotation direction of the third gear 514 is the same as that of the cleaning component 60.

[0087] For example, the active drive gear 511 is driven and connected to the drive motor 52, and the active drive gear 511 meshes with both the first gear 512 and the third gear 514; the first gear 512 also meshes with the fourth gear 515, and the fourth gear 515 also meshes with the second gear 513. In the cleaning state, the drive motor 52 drives the active drive gear 511 to rotate the first gear 512 clockwise, and the first gear 512 drives the fourth gear 515 to rotate the second gear 513 clockwise, causing the first roller 41 and the second roller 42 to rotate synchronously clockwise. The first roller 41 winds up the first area 311 of the frame and the filter screen 30, and the second roller 42 synchronously releases the third area 313 of the frame. Simultaneously, the first gear 512 drives the third gear 514 to rotate counterclockwise, thereby causing the brush to rotate counterclockwise to clean the mesh 32. This improves the synchronicity of the winding and unwinding at both ends of the filter screen 30, and also improves the cleaning effect.

[0088] Optionally, combined Figure 7 and Figure 8As shown, the indoor unit of the air conditioner also includes a position detection component 70 and a controller. The position detection component 70 is used to detect the position of the filter 30. The controller is connected to both the position detection component 70 and the drive component 50 so that when the self-cleaning is finished and the filter 30 is not in the initial position, the drive component 50 is controlled to drive the roller assembly 40 to reset the filter 30 to the initial position. When the filter 30 is in the initial position, the first area 311 of the flexible frame 31 and the screen 32 correspond to the air inlet 11.

[0089] When the filter 30 is in its initial position, the first region 311 of the flexible frame 31 and the mesh 32 correspond to the air inlet 11, effectively filtering the incoming airflow and maintaining the normal air intake effect and cooling / heating performance of the air conditioner. The position detection component 70 automatically detects whether the filter 30 has returned to its initial position after self-cleaning. If the position detection component 70 detects that the filter 30 has not returned to its initial position after self-cleaning, the controller will control the drive component 50 to drive the roller assembly 40 to move the filter 30 back to its initial position. This solves the problem of the filter 30 not accurately resetting after self-cleaning, ensuring that the filter 30 is always in the correct initial position during normal operation of the air conditioner, preventing the air inlet 11 from being exposed due to the mesh 32 not returning to its initial position.

[0090] Optionally, combined Figure 8 As shown, the position detection component 70 includes a position marking part 71 and a position sensing part 72. The position marking part 71 is disposed on the filter screen 30 and moves synchronously with the filter screen 30; the position sensing part 72 is disposed on the support frame 20, and the position sensing part 72 is correspondingly disposed with the position marking part 71. When the filter screen 30 is in the initial position, the position marking part 71 triggers the position sensing part 72 to generate a position signal, and the controller receives the position signal to confirm that the filter screen 30 is in the initial position.

[0091] The position indicator 71 moves synchronously with the filter 30 and cooperates with the position sensor 72. Through mechanical contact or sensor-triggered positioning, the controller can accurately and in real-time acquire the position status of the filter 30, ensuring that the filter 30 promptly returns to its initial position after self-cleaning. Upon receiving the positioning signal, the controller confirms that the filter 30 is in its initial position, guaranteeing that the filter 30 effectively filters the incoming airflow during normal operation of the air conditioner. It is understood that the position sensor 72 can also be fixed to the frame structure of the indoor unit.

[0092] Optionally, combined Figure 8As shown, the position marking part 71 includes a boss structure 711, which is disposed on the flexible frame 31; the position sensing part 72 includes a pressing structure 721, which is disposed on the support frame 20 and is correspondingly disposed to the boss structure 711; wherein, when the filter screen 30 is in the initial position, the boss structure 711 and the pressing structure 721 touch each other to generate a positioning signal.

[0093] When the boss structure 711 on the filter screen 30 moves to its initial position, it will touch the pressing structure 721, and the controller will assume that the filter screen 30 has returned to its original position. The boss structure 711 and the pressing structure 721 trigger a position signal through physical contact. This position detection method based on mechanical contact has the advantages of simple structure, low cost, and high reliability, and can directly and accurately sense whether the filter screen 30 is in its initial position.

[0094] It is understandable that the position detection component 70 can also adopt other mechanical contact position detection structures, such as roller type or lever type limit switches, which can also achieve accurate detection of the position of the filter screen 30.

[0095] For example, when the filter 30 is in the initial position, the transition between the first region 311 and the second region 312 of the flexible frame 31 corresponds to the first end 21 of the support frame 20, and the first spool 41 and the second spool 42 are located at the second end 22 of the support frame 20; the pressing structure 721 is provided at the first end 21 of the support frame 20, and the pressing structure 721 is provided at the end of the second region 312 of the flexible frame 31 facing the first region 311 or at the end of the first region 311 of the flexible frame 31 facing the second region 312, and the boss structure 711 contacts the pressing structure 721, thereby triggering the positioning signal.

[0096] Optionally, combined Figure 3 and Figure 7 As shown, the indoor unit of the air conditioner also includes a dust collection box 61, which is located below the cleaning component 60 and is used to collect dust from the cleaning component 60 when cleaning the screen 32.

[0097] During the self-cleaning process of the filter screen 30, the cleaning component 60 sweeps away the dust and other impurities on the filter screen 30. These impurities will fall directly into the dust collection box 61. The opening of the dust collection box 61 corresponds to the contact position between the cleaning component 60 and the filter screen 30, which can prevent the swept-away dust from being dispersed into the air again or re-attached to the filter screen 30, thereby preventing secondary pollution.

[0098] This disclosure provides an air conditioner, including an indoor unit 100 as described in any of the above-disclosed embodiments.

[0099] The air conditioner provided in this disclosure includes the indoor unit of the air conditioner described in any of the above-disclosed embodiments, and therefore has all the beneficial effects of the indoor unit of the air conditioner described in any of the above-disclosed embodiments, which will not be repeated here.

[0100] The foregoing description and accompanying drawings fully illustrate embodiments of the present disclosure to enable those skilled in the art to practice them. Other embodiments may include structural and other changes. The embodiments represent only possible variations. Individual components and functions are optional unless explicitly required, and the order of operation may vary. Parts and features of some embodiments may be included or substituted for parts and features of other embodiments. Embodiments of the present disclosure are not limited to the structures described above and shown in the accompanying drawings, and various modifications and changes may be made without departing from its scope. The scope of the present disclosure is limited only by the appended claims.

Claims

1. An indoor unit for an air conditioner, characterized in that, include: The casing is equipped with an air inlet; The supporting frame is designed to correspond with the air inlet. The filter screen is movably mounted on the support frame. The filter screen includes a flexible frame and a mesh screen. The flexible frame includes a first region, a second region, and a third region connected in sequence. The first region and the second region are disposed opposite to each other on two sides of the support frame along the air inlet direction. The mesh screen is disposed in the first region. The reel assembly includes a first reel and a second reel located on the same end side of the support frame, a first region of the flexible frame connected to the first reel, and a third region of the flexible frame connected to the second reel. The drive assembly is connected to the roller assembly to drive the roller assembly to move the filter screen relative to the air inlet; The cleaning component is designed to correspond to the screen and comes into contact with the screen during the filter's movement to clean it.

2. The indoor unit of the air conditioner according to claim 1, characterized in that, The drive assembly is driven to both the first and second reels. In the self-cleaning state, the drive assembly drives the first reel to rotate to wind up the first area of ​​the flexible frame, while simultaneously driving the second reel to rotate to release the third area of ​​the flexible frame. At the end of the self-cleaning process, the drive assembly drives the first reel to rotate to release the first area of ​​the flexible frame, while simultaneously driving the second reel to rotate to wind up the third area of ​​the flexible frame.

3. The indoor unit of the air conditioner according to claim 2, characterized in that, The drive assembly is also connected to the cleaning component drive. In the self-cleaning state, the drive assembly drives the cleaning component to rotate at a first speed and contact the mesh. When the self-cleaning ends, the drive assembly drives the cleaning component to rotate at a second speed or stops rotating.

4. The indoor unit of the air conditioner according to claim 2, characterized in that, The driver components include: The gear set is connected in drive to the first reel, the second reel, and the cleaning components; The drive motor is connected to the gear set and drives the first reel, the second reel, and the cleaning parts to rotate through the gear set.

5. The indoor unit of the air conditioner according to claim 4, characterized in that, The gear set includes: The drive gear is connected to the drive motor. The first gear is connected to both the drive gear and the first spool to drive the first spool to rotate; The second gear is connected to both the drive gear and the second spool to drive the second spool to rotate.

6. The indoor unit of the air conditioner according to claim 5, characterized in that, The gear set also includes: The third gear is connected to both the drive gear and the cleaning component to drive the cleaning component to rotate; The transmission ratio between the driving gear and the third gear is greater than the transmission ratio between the driving gear and the first gear, so that the speed of the third gear is greater than the speed of the first gear.

7. The indoor unit of the air conditioner according to any one of claims 1 to 6, characterized in that, Also includes: Position detection component, used to detect the position of the filter screen; The controller is connected to both the position detection component and the drive component to control the drive component to drive the roller assembly to reset the filter to the initial position when self-cleaning is completed and the filter is not in the initial position. When the filter is in its initial position, the first area of ​​the flexible frame and the mesh correspond to the air inlet.

8. The indoor unit of the air conditioner according to claim 7, characterized in that, The position detection component includes: The position indicator is located on the filter screen and moves synchronously with the filter screen; A position sensing unit is located on the supporting frame and is positioned corresponding to the position marking unit; When the filter is in the initial position, the position indicator triggers the position sensor to generate a position signal, and the controller receives the position signal to confirm that the filter is in the initial position.

9. The indoor unit of the air conditioner according to claim 8, characterized in that, The location marking section includes a boss structure, which is mounted on a flexible frame; The position sensing unit includes a pressing structure, which is located on the support frame and is correspondingly arranged with the boss structure. When the filter is in its initial position, the boss structure contacts the pressing structure to generate a positioning signal.

10. An air conditioner, characterized in that, Including the indoor unit of an air conditioner as described in any one of claims 1 to 9.

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