Air conditioner indoor unit

Abstract

The application provides an air conditioner indoor unit, comprising: an indoor unit shell and a fan blade, the fan blade being rotatably arranged in the indoor unit shell; a cleaning brush, the cleaning brush being movably arranged in the indoor unit shell, the cleaning brush having a cleaning position and an avoiding position; when the cleaning brush is in the cleaning position, a brush head of the cleaning brush is in contact with the fan blade; when the cleaning brush is in the avoiding position, the brush head of the cleaning brush is spaced apart from the fan blade; and a dust collecting box, the dust collecting box having a dust collecting opening and a dust collecting cavity in communication with the dust collecting opening, the dust collecting opening being arranged towards the fan blade. Through the technical scheme provided by the application, the technical problem of poor air outlet quality of the air conditioner indoor unit in the prior art can be solved.

Description

Technical Field

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

[0002] Currently, with the continuous improvement of living standards, people are paying more and more attention to air quality. Generally, as air conditioners are used for longer periods, their internal components become dirty. This causes the airflow circulating through the air conditioner to carry out unclean dust from inside. Existing technology includes self-cleaning mechanisms for the evaporator components inside air conditioners to achieve this cleaning.

[0003] However, because the fan blades are located in the middle of the air conditioner, it is impossible for a person to reach inside the air conditioner to clean them. Furthermore, since there is no existing technology for automatically cleaning the fan blades, and the function of the air conditioner fan blades is to circulate air, which is where the air must pass through, this inevitably affects the airflow quality of the air conditioner. Summary of the Invention

[0004] The main objective of this invention is to provide an air conditioner indoor unit to solve the technical problem of poor air quality in existing air conditioner indoor units.

[0005] To achieve the above objectives, the present invention provides an indoor unit for an air conditioner, comprising: an indoor unit housing and a fan blade, the fan blade being rotatably disposed within the indoor unit housing; a cleaning brush, movably disposed within the indoor unit housing, the cleaning brush having a cleaning position and a clearance position; when the cleaning brush is in the cleaning position, the brush head of the cleaning brush contacts the fan blade; when the cleaning brush is in the clearance position, the brush head of the cleaning brush is spaced apart from the fan blade; and a dust collection box, the dust collection box having a dust collection port and a dust collection chamber communicating with the dust collection port, the dust collection port being disposed facing the fan blade.

[0006] Furthermore, an air duct is provided inside the indoor unit housing, and the fan blades and cleaning brush are both located inside the air duct. At least part of the fan blades is located below the cleaning brush. A connecting port is provided at the bottom of the air duct, and a dust collection box is installed on the indoor unit housing, with the dust collection port connected to the connecting port.

[0007] Furthermore, a first snap-fit ​​structure is provided at the bottom of the indoor unit housing, and a second snap-fit ​​structure adapted to the first snap-fit ​​structure is provided on the dust collection box, so that the dust collection box can be detachably installed on the indoor unit housing.

[0008] Furthermore, an air outlet is provided at the bottom of the indoor unit casing, and the dust collection box is spaced apart from the air outlet. The bottom of the dust collection box is provided with a snap-fit ​​groove and a snap-fit ​​plate, and the snap-fit ​​plate is located at the snap-fit ​​interface of the snap-fit ​​groove.

[0009] Furthermore, an air duct is provided inside the indoor unit casing, and the fan blades and cleaning brush are located inside the air duct. The air conditioner indoor unit also includes a dust baffle, which is movably installed at the bottom of the air duct. The dust baffle has a dust-blocking position and a wind-sheltered position. When the dust baffle is in the dust-blocking position, the dust baffle protrudes from the inner wall of the air duct. When the dust baffle is in the wind-sheltered position, at least a portion of the dust baffle is attached to the inner wall of the air duct.

[0010] Furthermore, the air duct is provided with a connecting port, which is connected to the dust collection port, and a dust baffle is movably installed at the connecting port; when the dust baffle moves to the dust-blocking position, the dust baffle avoids the connecting port, so that dust enters the dust collection port through the connecting port; when the dust baffle moves to the windproof position, the dust baffle covers the connecting port.

[0011] Furthermore, the indoor unit of the air conditioner also includes a dust collection fan blade, which is rotatably disposed in the dust collection chamber to provide driving force for collecting dust.

[0012] Furthermore, the dust collection box is a strip-shaped box that extends along the extension direction of the indoor unit casing; the dust collection fan blades are strip-shaped fan blades that extend along the extension direction of the dust collection box.

[0013] Furthermore, when the cleaning brush is in the avoidance position, the brush head of the cleaning brush is positioned towards the bottom of the indoor unit housing.

[0014] Furthermore, the cleaning brush includes a main body and a brush head. The main body is provided with a mounting groove, and the brush head is installed in the mounting groove. At least a portion of the brush head protrudes from the mounting groove to form the brush head of the cleaning brush.

[0015] Furthermore, an air duct is provided inside the indoor unit housing. When the cleaning brush is in the avoidance position, the main body of the cleaning brush is in contact with at least part of the air duct, and the brush head of the cleaning brush is set at an angle downwards.

[0016] By applying the technical solution of this invention, the cleaning brush can effectively clean the fan blades, removing dust from them. Simultaneously, the dust collection port facilitates the entry of dust falling from the fan blades into the dust collection chamber, preventing dust from scattering into the indoor unit and being discharged through the air outlet. This ensures better cleanliness of the outlet air and guarantees air quality. Therefore, the technical solution provided by this invention solves the technical problem of poor air quality in existing air conditioning indoor units. Attached Figure Description

[0017] The accompanying drawings, which form part of this application, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings:

[0018] Figure 1A cross-sectional view is shown of the cleaning brush of an air conditioner indoor unit provided according to an embodiment of the present invention when it is in an avoidance position;

[0019] Figure 2 It shows Figure 1 A magnified view of a portion of the image;

[0020] Figure 3 A schematic diagram of a structure provided according to an embodiment of the present invention, showing a brush disposed on the bottom shell of an indoor unit housing;

[0021] Figure 4 A cross-sectional view of the cleaning brush of an air conditioner indoor unit provided according to an embodiment of the present invention in the cleaning position is shown.

[0022] Figure 5 A schematic diagram of a dust baffle plate installed on an indoor unit housing according to an embodiment of the present invention is shown;

[0023] Figure 6 A cross-sectional view is shown of an air conditioner indoor unit provided according to an embodiment of the present invention, with the cleaning brush in the cleaning position and the dust baffle in the dust baffle position.

[0024] Figure 7 It shows Figure 6 A magnified view of a portion of the image;

[0025] Figure 8 It shows Figure 7 A schematic diagram of the structure when the dust baffle is in a sheltered position;

[0026] Figure 9 A schematic diagram of the structure of an air conditioner indoor unit according to an embodiment of the present invention is shown;

[0027] Figure 10 It shows Figure 9 A magnified view of a portion of the image;

[0028] Figure 11 A schematic diagram of the structure of the dust collection box and the dust collection fan blade provided according to an embodiment of the present invention is shown;

[0029] Figure 12 A schematic diagram of a dust collection box installed on an indoor unit housing according to an embodiment of the present invention is shown;

[0030] Figure 13 It shows Figure 12 A magnified view of a portion of the image;

[0031] Figure 14 An installation schematic diagram of a dust collection box mounted on an indoor unit housing according to an embodiment of the present invention is shown;

[0032] Figure 15 It shows Figure 14 A magnified view of a portion of the image;

[0033] Figure 16 A schematic diagram of the cleaning process of an air conditioner indoor unit according to an embodiment of the present invention is shown, in which dust on the fan blades falls into the dust collection box during the cleaning process.

[0034] The above figures include the following reference numerals:

[0035] 10. Indoor unit casing; 11. Air duct; 12. Connecting port; 13. First snap-fit ​​structure; 14. Air outlet; 20. Fan blade; 30. Cleaning brush; 31. Main body; 32. Brush; 40. Dust collection box; 41. Dust collection port; 42. Dust collection chamber; 43. Second snap-fit ​​structure; 44. Snap-fit ​​groove; 45. Snap-fit ​​plate; 50. Dust baffle; 60. Dust collection fan blade; 70. Evaporator; 80. Drive motor. Detailed Implementation

[0036] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0037] like Figures 1 to 16 As shown, the present invention provides an indoor air conditioner unit, which includes an indoor unit housing 10, a fan blade 20, a cleaning brush 30, and a dust collection box 40. The fan blade 20 is rotatably disposed within the indoor unit housing 10, and the cleaning brush 30 is movably disposed within the indoor unit housing 10. The cleaning brush 30 has a cleaning position and a clearance position. When the cleaning brush 30 is in the cleaning position, the brush head of the cleaning brush 30 contacts the fan blade 20. When the cleaning brush 30 is in the clearance position, the brush head of the cleaning brush 30 is spaced apart from the fan blade 20. The dust collection box 40 has a dust collection port 41 and a dust collection chamber 42 communicating with the dust collection port 41, and the dust collection port 41 is oriented towards the fan blade 20.

[0038] The air conditioner indoor unit provided in this embodiment effectively cleans the fan blades 20 using the cleaning brush 30, removing dust from them. Simultaneously, the dust collection port 41 facilitates the entry of dust falling from the fan blades 20 into the dust collection chamber 42, preventing dust from scattering inside the indoor unit and being discharged through the air outlet 14. This ensures better cleanliness of the outlet air and guarantees air quality. Therefore, the air conditioner indoor unit provided in this embodiment solves the technical problem of poor air quality in existing air conditioner indoor units.

[0039] Specifically, in this embodiment, an air duct 11 is provided inside the indoor unit housing 10. The fan blades 20 and the cleaning brush 30 are both located within the air duct 11, with at least a portion of the fan blades 20 positioned below the cleaning brush 30. A connecting port 12 is provided at the bottom of the air duct 11. A dust collection box 40 is installed on the indoor unit housing 10, and its dust collection port 41 communicates with the connecting port 12. This structural layout facilitates the cleaning brush 30 in effectively sweeping dust off the fan blades 20 and allows the dust collection box 40 to effectively collect the swept dust, thus ensuring better airflow quality. Simultaneously, this structural layout improves the compactness of the structure, optimizes the structural layout of the indoor unit, and facilitates the installation of the dust collection box 40.

[0040] In this embodiment, a first snap-fit ​​structure 13 is provided at the bottom of the indoor unit housing 10, and a second snap-fit ​​structure 43 adapted to the first snap-fit ​​structure 13 is provided on the dust collection box 40, so that the dust collection box 40 can be detachably installed on the indoor unit housing 10. This structural design facilitates operation and improves ease of use. Specifically, the first snap-fit ​​structure 13 in this embodiment includes a snap-fit ​​groove, and the second snap-fit ​​structure 43 includes a snap-fit ​​protrusion. The snap-fit ​​groove includes a transition groove section and a mating groove section. Along the extension direction from the transition groove section to the mating groove section, the snap-fit ​​area of ​​the transition groove section gradually decreases. The shape of the mating groove section is adapted to the snap-fit ​​protrusion. The snap-fit ​​area at the connection between the transition groove section and the snap-fit ​​groove section is smaller than the cross-sectional area of ​​the snap-fit ​​post. This structural design improves the stability of the snap-fit, prevents the dust collection box 40 from detaching from the indoor unit housing 10, and also facilitates disassembly and assembly.

[0041] Specifically, in this embodiment, the bottom of the indoor unit housing 10 is provided with an air outlet 14, and the dust collection box 40 is spaced apart from the air outlet 14. The bottom of the dust collection box 40 is provided with a snap-fit ​​groove 44 and a snap-fit ​​plate 45, with the snap-fit ​​plate 45 located at the snap-fit ​​interface of the snap-fit ​​groove 44. Specifically, during operation, the user can insert the snap-fit ​​groove 44 from the snap-fit ​​interface and snap the snap-fit ​​plate 45, moving it away from the indoor unit housing 10 to detach the dust collection box 40 from the indoor unit housing 10, thereby facilitating the removal of the dust collection box 40 from the indoor unit housing 10 and improving the ease of operation.

[0042] In this embodiment, an air duct 11 is provided inside the indoor unit housing 10. The fan blades 20 and cleaning brush 30 are both located within the air duct 11. The indoor unit also includes a dust baffle 50, which is movably disposed at the bottom of the air duct 11. The dust baffle 50 has a dust-blocking position and a wind-sheltered position. When the dust baffle 50 is in the dust-blocking position, it protrudes from the inner wall of the air duct 11; when it is in the wind-sheltered position, at least a portion of it adheres to the inner wall of the air duct 11. With this structure, when the fan blades 20 need cleaning or sweeping, the dust baffle 50 is in the dust-blocking position to prevent dust from being discharged from the air outlet 14. When the indoor unit is operating normally, to avoid the dust baffle 50 affecting airflow, it can be moved to the wind-sheltered position for normal airflow. This structure ensures both the normal operation of the indoor unit and prevents dust from being discharged from the air outlet 14.

[0043] Specifically, in this embodiment, the air duct 11 is provided with a connecting port 12, which communicates with the dust collection port 41. A dust baffle 50 is movably installed at the connecting port 12. When the dust baffle 50 moves to the dust-blocking position, it avoids the connecting port 12, allowing dust to enter the dust collection port 41 through the connecting port 12 for better dust collection. When the dust baffle 50 moves to the windproof position, it covers the connecting port 12 to allow normal airflow without affecting the air volume.

[0044] In this embodiment, the indoor unit of the air conditioner also includes a dust-collecting fan blade 60, which is rotatably disposed within the dust-collecting chamber 42 to provide the driving force for collecting dust. With this structural arrangement, the dust-collecting fan blade 60 provides a driving negative pressure when rotating within the dust-collecting chamber 42. Under the action of the driving negative pressure, dust can smoothly enter the dust-collecting chamber 42, so as to better collect dust and prevent dust from scattering.

[0045] Specifically, in this embodiment, the dust collection box 40 is a strip-shaped box that extends along the extension direction of the indoor unit housing 10; the dust collection fan blade 60 is a strip-shaped fan blade that extends along the extension direction of the dust collection box 40. This structural arrangement facilitates better collection of dust falling from the fan blade 20, ensuring that as much dust as possible falls into the dust collection box 40.

[0046] In this embodiment, when the cleaning brush 30 is in the avoidance position, the brush head of the cleaning brush 30 is positioned towards the bottom of the indoor unit housing 10. Specifically, in this embodiment, the cleaning brush 30 is positioned near the evaporator 70. This structural arrangement can prevent condensate water droplets on the evaporator 70 from dripping onto the cleaning brush 30, thus avoiding affecting the service life of the cleaning brush 30 and providing better protection for the cleaning brush 30.

[0047] Specifically, the cleaning brush 30 in this embodiment includes a drive motor 80, a main body 31, and a brush 32. The main body 31 has a mounting groove, and the brush 32 is installed in the mounting groove. At least a portion of the brush 32 protrudes from the mounting groove to form the brush head of the cleaning brush 30. The main body 31 is connected to the drive motor 80, so that the drive motor 80 drives the main body 31 to rotate, facilitating automatic cleaning of the fan blades 20. Simultaneously, the above structural arrangement also facilitates better cleaning of the fan blades 20.

[0048] In this embodiment, an air duct 11 is provided inside the indoor unit housing 10. When the cleaning brush 30 is in the avoidance position, the main body 31 of the cleaning brush 30 is at least partially in contact with the air duct 11, and the brush head of the cleaning brush 30 is tilted downwards. With the above-described structure, the cleaning brush 30 can be prevented from affecting the airflow in the air duct 11 during normal operation of the indoor unit, and condensate on the evaporator 70 can also be prevented from flowing onto the cleaning brush 30.

[0049] Specifically, in this embodiment, the cleaning brush 30 is located at the top of the air duct 11. Its function is to be part of the air duct 11 when not in use, and not to affect the operation of the air outlet system. When the indoor unit of the air conditioner enters the cleaning mode, the cleaning brush 30 rotates to a position where it contacts the fan blade 20 via the rotation of the drive motor 80. The rotation of the fan blade 20 causes dust adhering to it to fall off. When the cleaning brush 30 is not in operation, it faces downwards to prevent condensate generated by the evaporator 70 during air conditioner operation from dripping onto the brush 32 of the cleaning brush 30, thus affecting its lifespan. The cleaning brush 30 is installed on the bottom shell of the indoor unit housing 10 (the bottom shell is for wall mounting), and rotates via the drive motor 80. The dust baffle 50 blocks dust falling from the fan blade 20, preventing dust from being blown out of the indoor unit and polluting the outside air. The dust baffle 50 is installed on the panel of the indoor unit housing 10 and opens and closes via the drive motor 80. A dust collection fan 60 is added to the dust collection box 40. The dust collection fan 60 is driven by a motor. The rotation of the dust collection fan 60 generates negative pressure, allowing dust to directly enter the dust collection box 40 and preventing it from being blown outside the air conditioner and polluting the air. The dust collection box 40 has a snap-fit ​​plate and a snap-fit ​​groove. Users can easily remove the dust collection box 40 for cleaning using the snap-fit ​​handle formed by the snap-fit ​​plate 45. The dust collection box 40 is assembled to the panel body by a snap-fit ​​method, making it convenient for users to remove and install.

[0050] The structure of this cleaning fan blade 20 consists of two parts: the first part is the cleaning fan blade area, and the second part is the dust collection area. The cleaning fan blade area comprises a cleaning brush 30, a base shell, and the fan blade 20. The cleaning brush 30 is driven by a drive motor 80 and installed on the top of the air duct 11 on the base shell. Its function is that when not in use, the cleaning brush 30 is part of the air duct 11 and will not affect the operation of the air duct 11 system. When not in use, the brush 30's bristles 32 face downwards to prevent condensate generated by the evaporator 70 during the operation of the indoor unit from dripping onto the brush 30's bristles 32, thus affecting the lifespan of the cleaning brush 30. The second part is the dust collection area, which comprises a dust baffle 50, a dust collection box 40, and a dust collection fan blade 60. The dust baffle 50 is driven by a drive motor and installed on the panel. The dust baffle 50 is opened and closed by rotating the motor, preventing dust from being blown out of the indoor unit and polluting the outside air during dust collection. A dust collection fan 60 is installed inside the dust collection box 40. The dust collection fan 60 is mounted on the dust collection box 40 via a motor. The dust collection fan 60 must be installed in the middle of the dust collection box 40 to prevent resonance and abnormal noise when the dust collection fan 60 rotates and contacts the dust collection box 40. The dust collection box 40 has a snap-fit ​​plate 45, which allows the user to easily remove and install the dust collection box 40. The dust collection box 40 and the panel body are engaged by a snap-fit ​​mechanism, making it easy for the user to fix and remove the dust collection box 40. During operation, the cleaning brush 30 is driven by the motor to rotate to a position where it contacts the dust collection fan 60. The dust collection fan 60, by rotating, throws the dust held on the fan blades 20 and drops it into the air duct 11 of the bottom shell. The dust baffle 50 is driven by the drive motor to rotate to the open position so that dust is not blown outside the air conditioner. The fan blades 20 inside the dust collection box 40, driven by the motor, create a negative pressure inside the dust collection box 40, causing dust to enter the dust collection box 40 due to the negative pressure. Users can remove the dust collection box 40 for cleaning using the handle on the dust collection box 40.

[0051] As can be seen from the above description, the above embodiments of the present invention achieve the following technical effects: automatically cleaning the fan blades 20 and collecting dust, enabling the air conditioner indoor unit to be cleaned more intelligently and improving product competitiveness.

[0052] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0053] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this application. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0054] In the description of this application, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is usually based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this application and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this application; the directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0055] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0056] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this application.

[0057] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. An indoor unit for an air conditioner, characterized in that, include: The indoor unit housing (10) and the fan blade (20) are rotatably disposed within the indoor unit housing (10); A cleaning brush (30) is movably disposed within the indoor unit housing (10). The cleaning brush (30) has a cleaning position and a clearance position. When the cleaning brush (30) is in the cleaning position, the brush head of the cleaning brush (30) contacts the fan blade (20). When the cleaning brush (30) is in the clearance position, the brush head of the cleaning brush (30) is spaced apart from the fan blade (20). A dust collection box (40) has a dust collection port (41) and a dust collection chamber (42) communicating with the dust collection port (41), the dust collection port (41) being disposed toward the fan blade (20); An air duct (11) is provided inside the indoor unit housing (10). The fan blade (20) and the cleaning brush (30) are both located inside the air duct (11). At least a portion of the fan blade (20) is located below the cleaning brush (30). A connecting port (12) is provided at the bottom of the air duct (11). The dust collection box (40) is installed on the indoor unit housing (10). The dust collection port (41) is connected to the connecting port (12). A dust baffle (50) is movably installed at the connecting opening (12). The dust baffle (50) has a dust-blocking position and a wind-sheltered position. When the dust baffle (50) moves to the dust-blocking position, the dust baffle (50) avoids the connecting opening (12) and protrudes from the inner wall of the air duct (11) so that dust enters the dust collection port (41) through the connecting opening (12). When the dust baffle (50) moves to the wind-sheltered position, the dust baffle (50) covers the connecting opening (12), and at least a portion of the dust baffle (50) is attached to the inner wall of the air duct (11). A dust collecting fan blade (60) is rotatably disposed within the dust collecting chamber (42) to provide a driving force for collecting dust. The bottom of the indoor unit housing (10) is provided with an air outlet (14), and the dust collection box (40) is spaced apart from the air outlet (14). The bottom of the dust collection box (40) is provided with a snap-fit ​​groove (44) and a snap-fit ​​plate (45), and the snap-fit ​​plate (45) is located at the snap-fit ​​interface of the snap-fit ​​groove (44).

2. The indoor unit of the air conditioner according to claim 1, characterized in that, The bottom of the indoor unit housing (10) is provided with a first snap-fit ​​structure (13), and the dust collection box (40) is provided with a second snap-fit ​​structure (43) that is compatible with the first snap-fit ​​structure (13), so that the dust collection box (40) can be detachably installed on the indoor unit housing (10).

3. The indoor unit of the air conditioner according to claim 1, characterized in that, The dust collection box (40) is a strip-shaped box that extends along the extension direction of the indoor unit housing (10); the dust collection fan blade (60) is a strip-shaped fan blade that extends along the extension direction of the dust collection box (40).

4. The indoor unit of the air conditioner according to claim 1, characterized in that, When the cleaning brush (30) is in the avoidance position, the brush head of the cleaning brush (30) is positioned towards the bottom of the indoor unit housing (10).

5. The indoor unit of the air conditioner according to claim 1, characterized in that, The cleaning brush (30) includes a main body (31) and a brush (32). The main body (31) is provided with a mounting groove, and the brush (32) is installed in the mounting groove. At least a portion of the brush (32) protrudes from the mounting groove to form the brush head of the cleaning brush (30).

6. The indoor unit of the air conditioner according to claim 5, characterized in that, An air duct (11) is provided inside the indoor unit housing (10). When the cleaning brush (30) is in the avoidance position, the main body (31) of the cleaning brush (30) is in contact with at least part of the air duct (11), and the brush head of the cleaning brush (30) is tilted downward.

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