Cross-flow fan assembly, air conditioner indoor unit and air conditioner

Abstract

The utility model provides a cross-flow fan assembly, an air conditioner indoor unit and an air conditioner. The cross-flow fan assembly comprises an impeller, a volute and a volute tongue, wherein the volute and the volute tongue are matched with the impeller. The cross-flow fan assembly further comprises a moving device and a cleaning device used for cleaning the impeller. The moving device is configured to drive the cleaning device to get close to or away from the impeller from the air inlet side of the volute tongue so that the cleaning device can have a cleaning position close to the impeller and a receding position away from the impeller. According to the cross-flow fan assembly, the air conditioner indoor unit and the air conditioner, the problem that dust on the cross-flow fan is not easy to clean can be solved, and the effect that the dust on the cross-flow fan is convenient to clean is achieved.

Description

Technical Field

[0001] The utility model relates to the field of air conditioners, in particular to a cross-flow fan assembly, an air conditioner indoor unit and an air conditioner. Background Art

[0002] At present, air conditioners can not only exchange heat indoors, but also purify indoor air. With the continuous improvement of their functions, air conditioners have become one of the indispensable household appliances in modern families. However, after using the air conditioner for a period of time, a lot of dust will accumulate inside the air conditioner. The dust inside the air conditioner is not easy to clean, especially the dust in the cross-flow fan, which requires professionals to clean, and the cleaning process is complicated. Dust inside the air conditioner will affect the operation of the internal components of the air conditioner, and even cause damage to the internal components of the air conditioner, thereby reducing the working efficiency of the air conditioner. Moreover, the accumulated dust is easy to breed bacteria. Dust and bacteria are blown into the room with the heat exchange air, and then inhaled by the user, affecting the user's health.

[0003] In order to solve the problem of dust accumulation and bacterial growth inside the air conditioner, some air conditioners are equipped with antibacterial fans by soaking the fan surface in antibacterial coating or adding antibacterial agents to the raw materials. However, the antibacterial performance of the antibacterial fan will gradually weaken over time and cannot maintain antibacterial ability throughout the life cycle of the air conditioner. Therefore, a fan dust removal structure is needed to clean the dust on the cross-flow fan, thereby avoiding bacterial growth and improving the user experience. Utility Model Content

[0004] In view of the above-mentioned problems, the present utility model is proposed to provide a cross-flow fan assembly, an air conditioner indoor unit and an air conditioner that overcome the above-mentioned problems or at least partially solve the above-mentioned problems, and can solve the problem that dust on the cross-flow fan is difficult to clean, thereby achieving the effect of facilitating the cleaning of dust on the cross-flow fan.

[0005] Specifically, the utility model provides a cross-flow fan assembly, including an impeller, and a volute and a volute tongue cooperating with the impeller; the cross-flow fan assembly also includes a motion device, and a cleaning device for cleaning the impeller; the motion device is configured to drive the cleaning device to approach or move away from the impeller from the air inlet side of the volute tongue, so that the cleaning device has a cleaning position close to the impeller and a yield position away from the impeller.

[0006] Optionally, the motion device comprises a bracket, and the bracket is rotatably mounted on the outer surface of the volute tongue around a first axis;

[0007] The cleaning device is installed on the bracket.

[0008] Optionally, the motion device further comprises:

[0009] A crank, one end of which is rotatably arranged around a second axis;

[0010] A connecting rod, one end of which is connected to the other end of the crank for rotation around a third axis, and the other end of which is connected to the bracket for rotation around a fourth axis;

[0011] The crank and the connecting rod are arranged on a side of the bracket away from the impeller.

[0012] Optionally, when the cleaning device is in the cleaning position, the plane where the first axis and the fourth axis are located is a first plane; the second axis, the third axis and the fourth axis are coplanar, and the plane where the second axis, the third axis and the fourth axis are located is a second plane; the first plane is perpendicular to the second plane;

[0013] When the cleaning device is in the yield position, the plane where the fourth axis and the second axis are located is the third plane; and the third axis is located on a side of the third plane close to the volute tongue.

[0014] Optionally, the cleaning device is a brush, and when the cleaning device is at the cleaning position, the brush is in contact with the impeller.

[0015] Optionally, the impeller extends in the horizontal direction, and the air inlet side of the volute tongue is the upper side of the volute tongue;

[0016] A first baffle is provided on the outer surface of the volute tongue, and the first baffle and the volute tongue form a dust collecting groove with an upward opening;

[0017] When the cleaning device is in the yield position, the cleaning device is located above the dust collecting tank or in the dust collecting tank.

[0018] Optionally, the volute tongue or the first baffle is arranged on the second baffle to form a water receiving trough with an upward opening; the water receiving trough is located on the side of the dust collecting trough away from the impeller.

[0019] Optionally, a groove is formed on the outer side of the volute tongue, and when the cleaning device is in the yield position, the cleaning device is located in the groove.

[0020] The utility model also provides an indoor unit of an air conditioner, comprising a driving device and a cross-flow fan assembly as described above, wherein the driving device is configured to drive the cleaning device to approach or move away from the impeller from the air inlet side of the volute tongue through the motion device.

[0021] The utility model provides an air conditioner, comprising a driving device and a cross-flow fan assembly as described in any one of the above, wherein the driving device is configured to drive the cleaning device to approach or move away from the impeller from the air inlet side of the volute tongue through the motion device.

[0022] In the cross-flow fan assembly, air conditioner indoor unit and air conditioner of the utility model, since the cross-flow fan assembly includes a motion device and a cleaning device, the motion device can drive the cleaning device to move. When the impeller needs to be cleaned, the motion device drives the cleaning device to move to the cleaning position. At this time, the cleaning device contacts the impeller and controls the rotation of the impeller so that the cleaning device can clean the impeller. After the impeller is cleaned, the motion device drives the cleaning device to move to a yield position to prevent the cleaning device from affecting the work of the impeller. A cleaning device is installed in the air conditioner, and there is no need to disassemble the air conditioner when cleaning the impeller. The cleaning method is simple and convenient. The user can clean the cross-flow fan regularly to avoid dust accumulation on the cross-flow fan, thereby preventing bacteria from growing in the air conditioner, improving the air quality of the air conditioner, and improving the user experience.

[0023] Based on the detailed description of the specific embodiments of the present invention in combination with the accompanying drawings below, those skilled in the art will become more aware of the above and other purposes, advantages and features of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Hereinafter, some specific embodiments of the present invention will be described in detail in an exemplary and non-limiting manner with reference to the accompanying drawings. The same reference numerals in the accompanying drawings indicate the same or similar components or parts. It should be understood by those skilled in the art that these drawings are not necessarily drawn to scale. In the accompanying drawings:

[0025] Figure 1 is a schematic structural diagram of an indoor unit of an air conditioner according to an embodiment of the utility model;

[0026] Figure 2 is a schematic structural diagram of an indoor unit of an air conditioner according to an embodiment of the utility model;

[0027] Figure 3 This is a diagram showing a cleaning device according to an embodiment of the utility model in a use state at a cleaning position;

[0028] Figure 4 This is a diagram showing a cleaning device in a use state at a yielding position according to an embodiment of the utility model. DETAILED DESCRIPTION

[0029] Refer to the following Figures 1 to 4To describe the cross-flow fan assembly, air conditioner indoor unit and air conditioner of the embodiment of the utility model. In the description of this embodiment, it should be understood that the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features, that is, include one or more of the features. In the description of the utility model, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined. When a feature "includes or contains" one or some of the features it covers, unless otherwise specifically described, this indicates that other features are not excluded and other features may be further included.

[0030] Unless otherwise clearly specified and limited, the terms "set", "install", "connect", "connect", "fix", "couple" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. A person of ordinary skill in the art should be able to understand the specific meanings of the above terms in the present utility model according to the specific circumstances.

[0031] In addition, in the description of this embodiment, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through another feature between them. That is, in the description of this embodiment, the first feature being "above", "above", and "above" the second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. The first feature being "below", "below", or "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0032] In the description of the present embodiment, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0033] Figure 1is a schematic structural diagram of an indoor unit of an air conditioner according to an embodiment of the utility model, such as Figure 1 As shown, and refer to Figures 2 to 4 The embodiment of the utility model provides a cross-flow fan assembly, including an impeller 10, and a volute 20 and a volute tongue 30 matched with the impeller 10. The cross-flow fan assembly also includes a motion device 40 and a cleaning device 50 for cleaning the impeller 10. The motion device 40 is configured to drive the cleaning device 50 to approach or move away from the impeller 10 from the air inlet side of the volute tongue 30, so that the cleaning device 50 has a cleaning position close to the impeller 10 and a yielding position away from the impeller 10.

[0034] In this embodiment, since the cross-flow fan assembly includes a motion device 40 and a cleaning device 50, the motion device 40 can drive the cleaning device 50 to move. When the impeller 10 needs to be cleaned, the motion device 40 drives the cleaning device 50 to move to the cleaning position. At this time, the cleaning device 50 contacts the impeller 10 and controls the impeller 10 to rotate so that the cleaning device 50 can clean the impeller 10. After the impeller 10 is cleaned, the motion device 40 drives the cleaning device 50 to move to the yield position to prevent the cleaning device 50 from affecting the operation of the impeller 10. The cleaning device 50 is installed in the air conditioner, and there is no need to disassemble the air conditioner when cleaning the impeller 10. The cleaning method is simple and convenient. The user can clean the cross-flow fan regularly to avoid dust accumulation on the cross-flow fan, thereby preventing bacteria from growing in the air conditioner, improving the air quality of the air conditioner, and improving the user experience.

[0035] In some embodiments of the present invention, Figure 1 As shown, the volute tongue 30 and the volute 20 define an air supply duct 60, and the impeller 10 is disposed in the air supply duct 60. The volute tongue 30 has a first air inlet end 310 close to the air inlet side of the impeller 10 and a first air outlet end 320 away from the air inlet side of the impeller 10. The first air outlet end 320 extends obliquely forward and downward from the first air inlet end 310, and a rounded corner is provided at the connection between the first air inlet end 310 and the first air outlet end 320.

[0036] In this embodiment, the air after heat exchange in the heat exchanger of the air conditioner enters from the inlet of the air duct and blows out along the air duct under the action of the impeller 10. The connection between the first air inlet end 310 and the first air outlet end 320 is rounded to facilitate the heat exchange air to be blown out along the air duct.

[0037] In some embodiments of the present invention, Figure 1 As shown, the cleaning device 50 is disposed near the first air inlet end 310 .

[0038] In this embodiment, the cleaning device 50 is disposed adjacent to the volute tongue 30. When the cleaning device 50 cleans the impeller 10, the swept dust is blown out from the upper side of the volute tongue 30 to the front side, preventing the dust from entering the air supply duct 60 and being blown into the room when the air conditioner is turned on, thereby affecting the air supply quality of the air conditioner.

[0039] In other embodiments of the present invention, Figure 1 As shown, the volute 20 includes a second air inlet end 210 having an air inlet side close to the impeller 10 and a second air outlet end 220 on the air inlet side away from the impeller 10. The second air outlet end 220 extends obliquely forward and downward from the second air inlet end 210.

[0040] In some embodiments of the present invention, Figure 3 and Figure 4 As shown, the moving device 40 includes a bracket 410, and the bracket 410 is rotatably mounted on the outer surface of the volute 30 around a first axis 710. The cleaning device 50 is mounted on the bracket 410.

[0041] In this embodiment, the cleaning device 50 is installed on the outer surface of the volute 30 through the bracket 410. When the impeller 10 needs to be cleaned, the bracket 410 drives the cleaning device 50 to rotate so that the cleaning device 50 rotates to the cleaning position. When the cleaning device 50 is in the cleaning position, the impeller 10 is controlled to rotate slowly, and the cleaning device 50 cleans the impeller 10. After the impeller 10 is cleaned, the bracket 410 drives the cleaning device 50 to rotate in the opposite direction to the yield position. For example, when the impeller 10 needs to be cleaned, the bracket 410 rotates clockwise to place the cleaning device 50 in the cleaning position. After the impeller 10 is cleaned, the bracket 410 rotates counterclockwise to rotate the cleaning device 50 to the yield position.

[0042] In some embodiments of the present invention, Figure 3 and Figure 4 As shown, the motion device 40 further includes a crank 420 and a connecting rod 430, one end of the crank 420 is rotatably arranged around the second axis 720. One end of the connecting rod 430 is rotatably connected to the other end of the crank 420 around the third axis 730, and the other end of the connecting rod 430 is rotatably connected to the bracket 410 around the fourth axis 740. The crank 420 and the connecting rod 430 are arranged on a side of the bracket 410 away from the impeller 10.

[0043] In this embodiment, the motion device 40 is a crank-rocker mechanism, and the crank 420 and the bracket 410 are connected by a connecting rod 430. The crank 420 rotates to drive the connecting rod 430 to move, and then drives the bracket 410 to rotate, so that the cleaning device 50 rotates to the cleaning position to clean the impeller 10, or the cleaning device 50 rotates to the yield position. The crank-rocker mechanism has a simple structure and low manufacturing cost, which reduces the production cost of the air conditioner. The crank-rocker mechanism is practical and reliable, and can achieve complex actions through a simple structure. Moreover, the crank-rocker mechanism is used to drive the cleaning device 50 to rotate, which increases the stability of the structure of the motion device 40, saves more effort when controlling the rotation of the cleaning device 50, and reduces the loss of the motion device 40. For example, when the impeller 10 needs to be cleaned, the crank 420 rotates counterclockwise to drive the connecting rod 430 to move, and the connecting rod 430 drives the bracket 410 to rotate clockwise, so that the cleaning device 50 rotates to the cleaning position to clean the impeller 10. After the impeller 10 is cleaned, the crank 420 rotates clockwise to drive the connecting rod 430 to move, and the connecting rod 430 drives the bracket 410 to rotate counterclockwise, so that the cleaning device 50 rotates to the yield position.

[0044] In some embodiments of the present invention, the crank 420 is rotatably mounted on the crossflow blower assembly.

[0045] In other embodiments of the present invention, the crank 420 is rotatably mounted on a housing of the air conditioner or other components inside the air conditioner.

[0046] In some embodiments of the present invention, the motion device 40 further includes a power device to drive the motion device 40 to rotate. The power device is a motor.

[0047] In this embodiment, the output end of the motor is connected to the crank 420. When the motor is turned on, the crank 420 is driven to rotate, and the rotation of the crank 420 drives the connecting rod 430 to move, thereby driving the bracket 410 to rotate.

[0048] In some embodiments of the present invention, Figure 3 As shown, when the cleaning device 50 is in the cleaning position, the plane where the first axis 710 and the fourth axis 740 are located is the first plane. The second axis 720, the third axis 730 and the fourth axis 740 are coplanar, and the plane where the second axis 720, the third axis 730 and the fourth axis 740 are located is the second plane. The first plane is perpendicular to the second plane.

[0049] In this embodiment, when the cleaning device 50 is in the cleaning position, the crank 420 and the connecting rod 430 are in the same straight line, and the connecting rod 430 is perpendicular to the bracket 410. When the cleaning device 50 cleans the impeller 10, the crank 420 and the connecting rod 430 are in the same straight line and abut against the bracket 410, which increases the structural stability of the cleaning device 50 when it is working and prevents the moving device 40 from shaking or being damaged due to the force of the impeller 10.

[0050] Furthermore, when the cleaning device 50 is at the cleaning position, the moving device 40 is in a self-locking state.

[0051] In this embodiment, when the cleaning device 50 cleans the impeller 10, no matter how much driving force the moving device 40 is subjected to, the moving device 40 always remains stationary to prevent the excessive force between the impeller 10 and the cleaning device 50 from damaging the moving device 40 or the power device.

[0052] In some embodiments of the present invention, Figure 4 As shown, when the cleaning device 50 is in the yield position, the plane where the fourth axis 740 and the second axis 720 are located is the third plane. The third axis 730 is located on the side of the third plane close to the volute tongue 30.

[0053] In this embodiment, the cleaning device 50 is installed on the front side of the volute 30. When the cleaning device 50 is in the yield position, the cleaning device 50 is on the side of the volute 30 away from the impeller 10, which rationally utilizes the internal space of the air conditioner and avoids affecting the air supply of the impeller 10.

[0054] In some embodiments of the present invention, the cleaning device 50 is a brush. When the cleaning device 50 is in the cleaning position, the brush is in contact with the impeller 10 .

[0055] In this embodiment, a brush is used as the cleaning device 50, and the brush has flexible bristles. When the brush cleans the impeller 10, the flexible brush directly contacts the blades of the impeller 10 by bending and extending to clean the blades.

[0056] In some embodiments of the present invention, Figure 2 As shown, the impeller 10 extends in the horizontal direction, and the air inlet side of the volute tongue 30 is the upper side of the volute tongue 30. A first baffle 810 is provided on the outer surface of the volute tongue 30, and the first baffle 810 and the volute tongue 30 form a dust collecting groove 910 with an upward opening. When the cleaning device 50 is in the yield position, the cleaning device 50 is above the dust collecting groove 910 or in the dust collecting groove 910.

[0057] In this embodiment, a dust collecting groove 910 is provided in the area outside the volute 30, and the cleaning device 50 is located above or inside the dust collecting groove 910. When the cleaning device 50 cleans the impeller 10, the dust on the impeller 10 is swept off, and the dust collecting groove 910 collects the swept dust and other dirt, preventing the swept dust from flying inside the air conditioner or falling into other devices inside the air conditioner, thereby avoiding affecting the working efficiency of the air conditioner.

[0058] In some embodiments of the present invention, the dust collecting tank 910 is also used to receive condensed water.

[0059] In this embodiment, since the dust collecting tank 910 can receive condensed water, the condensed water will clean the dust in the dust collecting tank 910 and be discharged through the drainage structure of the dust collecting tank 910, thereby preventing the dust from breeding bacteria in the dust collector for a long time. In addition, the dust in the dust collecting tank 910 is washed with condensed water generated by the heat exchanger, and the condensed water is used reasonably to save energy.

[0060] In some embodiments of the utility model, the volute 30 or the first baffle 810 is provided on the second baffle 820 to form a water receiving groove 920 with an opening facing upward. The water receiving groove 920 is located on the side of the dust collecting groove 910 away from the impeller 10. In this embodiment, the second baffle 820 separates the water receiving groove 920 from the dust collecting groove 910, and the water receiving groove 920 is provided on the front side of the dust collecting groove 910.

[0061] In other embodiments of the present invention, a through hole may be provided between the water receiving tank 920 and the dust collecting tank 910, so that water in the water receiving tank 920 enters the dust collecting tank 910 to clean the dust collecting tank 910, thereby preventing dust from breeding bacteria in the dust collecting tank 910 for a long time. Moreover, condensed water is reasonably used to save energy.

[0062] In some embodiments of the present invention, a groove is formed on the outer side of the volute tongue 30 , and when the cleaning device 50 is in the yield position, the cleaning device 50 is located in the groove.

[0063] In this embodiment, the groove is used to receive dust swept from the impeller 10. The outer side of the volute tongue 30 is formed with a groove, which reasonably utilizes the internal space of the air conditioner, is more convenient during production, and reduces the production cost of the air conditioner.

[0064] In some preferred embodiments of the present invention, Figures 1 to 4As shown, the cross-flow fan assembly includes an impeller 10, a volute 20, a volute tongue 30, a motion device 40 and a cleaning device 50. The volute 20 and the volute tongue 30 define an air supply duct 60, and the impeller 10 is arranged at the air inlet end of the air supply duct 60. The motion device 40 is arranged on the outside of the volute 20, and the motion device 40 includes a crank 420, a connecting rod 430 and a bracket 410. The two ends of the connecting rod 430 connect one end of the crank 420 and the bracket 410, and the other end of the crank 420 is rotatably arranged around the second axis 720. The bracket 410 is rotatably mounted on the volute 20 around the first axis 710, and the cleaning device 50 is mounted on the bracket 410. The movement of the motion device 40 drives the cleaning device 50 to rotate to the cleaning position or the yield position.

[0065] In this embodiment, when the impeller 10 needs to be cleaned, the crank 420 rotates counterclockwise, driving the connecting rod 430 to move, thereby driving the bracket 410 to rotate, so that the cleaning device 50 rotates clockwise to the cleaning position. At this time, the cleaning device 50 contacts the impeller 10, controls the impeller 10 to rotate, and enables the cleaning device 50 to clean the impeller 10. After the impeller 10 is cleaned, the crank 420 rotates clockwise, thereby driving the bracket 410 to rotate, so that the cleaning device 50 rotates counterclockwise to the yield position to prevent the cleaning device 50 from affecting the operation of the impeller 10. Since the cross-flow fan assembly includes a motion device 40 and a cleaning device 50, there is no need to disassemble the air conditioner when cleaning the impeller 10, and the cleaning method is simple and convenient. The user can clean the cross-flow fan regularly to avoid dust accumulation on the cross-flow fan, thereby preventing bacteria from growing in the air conditioner, improving the air quality of the air conditioner, and improving the user experience.

[0066] Furthermore, the motion device 40 has a simple structure, low manufacturing cost, and is practical and reliable. It can realize complex movements through a simple structure, thereby reducing the production cost of the air conditioner.

[0067] The embodiment of the utility model also provides an air conditioner indoor unit 100, including a driving device and a cross-flow fan assembly in any one of the above embodiments, wherein the driving device is configured to drive the cleaning device 50 from the air inlet side of the volute 30 to approach or move away from the impeller 10 through the motion device 40.

[0068] In this embodiment, the air conditioner indoor unit 100 can drive the cleaning device 50 to clean the impeller 10 inside the air conditioner indoor unit 100 through the motion device 40. When cleaning the impeller 10, there is no need to disassemble the air conditioner indoor unit 100, and the cleaning method is simple and convenient. Dust accumulation on the crossflow fan is avoided, thereby preventing bacteria from growing in the air conditioner indoor unit 100, improving the air quality of the air conditioner indoor unit 100, and improving the user experience.

[0069] The utility model also provides an air conditioner, including a driving device and a cross-flow fan assembly in any one of the above embodiments, wherein the driving device is configured to drive the cleaning device 50 from the air inlet side of the volute 30 to approach or move away from the impeller 10 through the motion device 40.

[0070] In this embodiment, the air conditioner can drive the cleaning device 50 to clean the impeller 10 inside the air conditioner through the motion device 40. When cleaning the impeller 10, there is no need to disassemble the air conditioner, and the cleaning method is simple and convenient. Avoid dust accumulation on the crossflow fan, thereby preventing bacteria from growing in the air conditioner, improving the air quality of the air conditioner, and improving the user experience. The air conditioner includes an air conditioner indoor unit 100 and an air conditioner outdoor unit, or the air conditioner is an integrated air conditioner.

[0071] At this point, those skilled in the art should recognize that, although multiple exemplary embodiments of the present invention have been shown and described in detail herein, many other variations or modifications that conform to the principles of the present invention can still be directly determined or derived from the contents disclosed in the present invention without departing from the spirit and scope of the present invention. Therefore, the scope of the present invention should be understood and recognized as covering all such other variations or modifications.

Claims

1. A crossflow fan assembly, comprising an impeller, and a volute and a volute tongue matched with the impeller; characterized in that: It also includes a motion device and a cleaning device for cleaning the impeller; the motion device is configured to drive the cleaning device to approach or move away from the impeller from the air inlet side of the volute tongue, so that the cleaning device has a cleaning position close to the impeller and a yielding position away from the impeller; The motion device comprises a bracket, which is rotatably mounted on the outer surface of the volute tongue around a first axis; The cleaning device is installed on the bracket.

2. The crossflow fan assembly according to claim 1, characterized in that: The sports device also includes: A crank, one end of which is rotatably arranged around a second axis; A connecting rod, one end of which is connected to the other end of the crank for rotation around a third axis, and the other end of which is connected to the bracket for rotation around a fourth axis; The crank and the connecting rod are arranged on a side of the bracket away from the impeller.

3. The crossflow fan assembly according to claim 2, characterized in that: When the cleaning device is in the cleaning position, the plane where the first axis and the fourth axis are located is a first plane; the second axis, the third axis and the fourth axis are coplanar, and the plane where the second axis, the third axis and the fourth axis are located is a second plane; the first plane is perpendicular to the second plane; When the cleaning device is in the yield position, the plane where the fourth axis and the second axis are located is the third plane; and the third axis is located on a side of the third plane close to the volute tongue.

4. The crossflow fan assembly according to claim 1, characterized in that: The cleaning device is a brush, and when the cleaning device is at the cleaning position, the brush is in contact with the impeller.

5. The crossflow fan assembly according to claim 1, characterized in that: The impeller extends in the horizontal direction, and the air inlet side of the volute tongue is the upper side of the volute tongue; A first baffle is provided on the outer surface of the volute tongue, and the first baffle and the volute tongue form a dust collecting groove with an upward opening; When the cleaning device is in the yield position, the cleaning device is located above the dust collecting tank or in the dust collecting tank.

6. The crossflow fan assembly according to claim 5, characterized in that: The dust collecting tank is also used to receive condensed water; or, The volute tongue or the first baffle is arranged on the second baffle to form a water receiving trough with an upward opening; the water receiving trough is located on the side of the dust collecting trough away from the impeller.

7. The crossflow blower assembly according to claim 1, characterized in that: A groove is formed on the outer side of the volute tongue, and when the cleaning device is at the yield position, the cleaning device is located in the groove.

8. An air conditioner indoor unit, characterized in that: It comprises a driving device and the cross-flow fan assembly according to any one of claims 1 to 7, wherein the driving device is configured to drive the cleaning device to approach or move away from the impeller from the air inlet side of the volute tongue through the motion device.

9. An air conditioner, characterized in that: It comprises a driving device and the cross-flow fan assembly according to any one of claims 1 to 7, wherein the driving device is configured to drive the cleaning device to approach or move away from the impeller from the air inlet side of the volute tongue through the motion device.

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