Air conditioner

Abstract

The invention provides an air conditioner, and relates to the technical field of air conditioners. The air conditioner comprises a filter screen assembly and a shell provided with a return air inlet, the filter screen assembly comprises a driving shaft, a driven shaft and a conveying belt, the driving shaft and the driven shaft are rotationally connected to the shell, the conveying belt sleeves the driving shaft and the driven shaft, the driving shaft and the driven shaft are located on the two opposite sides of the periphery of the return air inlet, and the conveying belt is connected with a filter screen capable of shielding the return air inlet; the air conditioner further comprises a driving assembly and a dust collection assembly which are arranged on the shell, and the driving assembly is connected to the driving shaft and used for driving the driving shaft to rotate. The annular conveying track of the filter screen comprises a dust removal section which is located in the dust collection area of the dust collection assembly. The dust collection assembly in the air conditioner can conduct dust collection treatment on dust of the filter screen, continuous use of the filter screen is achieved, and therefore disassembly, assembly, cleaning and replacement operations of the filter screen assembly are reduced, and the use convenience of the filter screen assembly and the air conditioner is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioning, and in particular to an air conditioner. Background Art

[0002] Air conditioners are widely used for temperature regulation in indoor environments. A filter is generally installed at the return air outlet of an existing indoor unit to filter the airflow entering the air duct, so as to reduce the blockage and damage to the air duct components caused by impurities and dust in the airflow, as well as the adverse effects on its heat exchange efficiency. As the filter is clogged by dust, the filter assembly needs to be removed for cleaning or replacement every once in a while, which is inconvenient to use. Summary of the invention

[0003] The purpose of the present invention includes providing an air conditioner to solve the technical problem that the existing filter assembly needs to be cleaned or replaced regularly and is less convenient to use.

[0004] In order to solve the above problems, the present invention provides an air conditioner, comprising a filter assembly and a housing provided with a return air outlet, the filter assembly comprising a driving shaft rotatably connected to the housing, a driven shaft and a conveyor belt sleeved on the two, the driving shaft and the driven shaft are located on two opposite sides of the outer periphery of the return air outlet, and the conveyor belt is connected to a filter capable of shielding the return air outlet;

[0005] The air conditioner also includes a driving component and a dust collection component arranged on the shell, the driving component is connected to the driving shaft and is used to drive the driving shaft to rotate; the annular transmission track of the filter includes a dust removal section, and the dust removal section is located in the dust collection area of ​​the dust collection component.

[0006] In the air conditioner provided by the present invention, the dust collection component can be controlled to start the dust collection process on the filter before the air conditioner is turned on or off according to actual needs. Specifically, the dust collection component and the driving component can be started, and the driving component drives the driving shaft to rotate, thereby driving the conveyor belt to drive the filter to rotate around the driving shaft and the driven shaft, so that all areas of the filter pass through the dust removal section in sequence, and in the process of passing through the dust removal section, the dust on it can be separated from the filter and enter the dust collection component under the suction action of the dust collection component, thereby realizing continuous dust collection processing of the filter by the dust collection component, correspondingly reducing the blocking of the filter by dust, and improving the filtering capacity and ventilation capacity of the filter; after completing the dust collection processing of all areas of the filter, the dust collection component can be turned off, and after the driving component drives the filter to a position that can block the return air outlet through the driving shaft and the conveyor belt, the driving component is turned off, and in the subsequent operation of the air conditioner, the filter with a higher degree of cleanliness can not only effectively filter the airflow passing through, but also cause less resistance to the airflow, thereby realizing long-term continuous use of the filter without disassembling and replacing the filter component, and correspondingly improving the convenience of using the filter component and the air conditioner.

[0007] Optionally, the return air outlet is rectangular, and the driving shaft and the driven shaft are located on both sides of the length direction of the return air outlet; the dust suction port of the dust suction assembly is strip-shaped, and the extension direction of the dust suction port is consistent with the width direction of the return air outlet, and the extension area of ​​the dust suction port completely covers the width range of the return air outlet.

[0008] Optionally, the dust suction port is located above the annular conveying track.

[0009] Optionally, the first end of the annular conveying track in the length direction faces the electric control box of the air conditioner, and the dust suction port is located above the first end of the annular conveying track in the length direction.

[0010] Optionally, the dust suction assembly includes a dust suction pipe located outside the shell, and the dust suction end of the dust suction pipe is connected to a suction nozzle extending downward, and the suction nozzle extends through the return air port to above the annular conveying track.

[0011] Optionally, the return air outlet is located on the top plate of the shell, and the dust suction pipe includes a horizontal section extending along the top plate and a vertical section extending along the side plate of the shell, one end of the horizontal section is connected to the top of the suction nozzle, and the other end is connected to the top of the vertical section; the suction nozzle is attached to the side wall on the corresponding side of the return air outlet.

[0012] Optionally, the output end of the dust suction pipe is connected to the dirty air discharge channel of the fresh air component in the air conditioner.

[0013] Optionally, the air conditioner further comprises a cleaning component arranged on the shell, wherein a cleaning end of the cleaning component is located upstream of the dust removal section, and is used for cleaning dust in a corresponding area of ​​the filter.

[0014] Optionally, the driving shaft and the driven shaft are both gear shafts, and the conveyor belt is a rack belt and meshes with the gear shaft.

[0015] Optionally, there are two conveyor belts, a frame is connected between the two conveyor belts, and the filter is supported by the frame.

[0016] Optionally, the filter screen is a screen segment, and the extended length of the filter screen is greater than the length of the return air outlet and less than or equal to the one-way length of the annular conveying track;

[0017] Alternatively, the filter screen and the conveyor belt are correspondingly ring-shaped screens. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0019] Figure 1 A schematic diagram of an air conditioner provided by the present invention from a first viewing angle;

[0020] Figure 2 A schematic diagram of the air conditioner provided by the present invention from a second viewing angle;

[0021] Figure 3 A schematic diagram of the interior of the air conditioner provided by the present invention;

[0022] Figure 4 for Figure 3 A partial enlarged view of middle A;

[0023] Figure 5 This is a schematic internal axonometric diagram of the air conditioner provided by the present invention.

[0024] Description of reference numerals:

[0025] 100-filter assembly; 110-driving shaft; 120-driven shaft; 130-conveyor belt; 140-filter; 150-skeleton; 200-shell; 210-top plate; 211-return air outlet; 300-dust suction assembly; 310-dust suction pipe; 311-horizontal section; 311a-first conveying section; 311b-expanding section; 311c-second conveying section; 312-vertical section; 320-suction nozzle; 321-dust suction port; 400-fresh air assembly; 410-fan; 420-dirty air discharge channel. DETAILED DESCRIPTION

[0026] In order to make the above-mentioned objects, features and advantages of the present invention more clearly understood, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0027] This embodiment provides an air conditioner, such as Figure 3 and Figure 5As shown, the air conditioner includes a filter assembly 100 and a shell 200 provided with a return air outlet 211, the filter assembly 100 includes a driving shaft 110 rotatably connected to the shell 200, a driven shaft 120 and a conveyor belt 130 sleeved on the two, the driving shaft 110 and the driven shaft 120 are located on two opposite sides of the outer periphery of the return air outlet 211, and the conveyor belt 130 is connected to a filter 140 capable of blocking the return air outlet 211; the air conditioner also includes a driving assembly and a dust collection assembly 300 arranged in the shell 200, the driving assembly is connected to the driving shaft 110, and is used to drive the driving shaft 110 to rotate; the annular transmission track of the filter 140 includes a dust removal section, and the dust removal section is located in the dust collection area of ​​the dust collection assembly 300.

[0028] In the air conditioner provided in this embodiment, the length and width of the filter 140 are not less than the length and width of the return air outlet 211 to ensure that the filter 140 blocks and filters the return air outlet 211; the driving component is used to drive the active shaft 110 to rotate, so as to drive the conveyor belt 130 and the filter 140 thereon to move along the length direction of the return air outlet 211; the dust suction component 300 is used to suck the dust on the filter 140 located in the dust removal section to reduce the degree of clogging of the filter 140 by dust and improve the effective filtering performance of the filter 140. When the air conditioner is in standby mode, the driving component can drive the active shaft 110 to rotate to drive the conveyor belt 130 and the filter 140 thereon to be located in a position to block the return air outlet 211, so as to reduce the pollution and blockage of the air duct components caused by dust from the external environment entering the air duct through the return air outlet 211; when the air conditioner is in operation, the filter 140 is also located in a position to block the return air outlet 211, and the airflow flowing through the return air outlet 211 needs to be filtered by the filter 140 to improve the cleanliness of the airflow entering the air duct, reduce the blockage and pollution of the air duct components caused by dust mixed in the airflow, and improve the cleanliness of the air outlet of the air conditioner.

[0029] Among them, the dust collection component 300 can be controlled to start the dust collection process on the filter 140 before the air conditioner is turned on or off according to actual needs. Specifically, the dust collection component 300 and the driving component can be started, and the driving component drives the active shaft 110 to rotate, thereby driving the conveyor belt 130 to drive the filter 140 to rotate around the active shaft 110 and the driven shaft 120. Then, all areas of the filter 140 pass through the dust removal section in turn, and in the process of passing through the dust removal section, the dust on it can be separated from the filter 140 and enter the dust collection component 300 under the suction action of the dust collection component 300, thereby realizing the continuous dust collection process of the filter 140 by the dust collection component 300, which reduces the dust accordingly. The filter 140 is blocked to improve the filtering capacity and ventilation capacity of the filter 140; after completing the dust collection process on the entire area of ​​the filter 140, the dust collection component 300 can be closed, and the driving component drives the filter 140 through the active shaft 110 and the conveyor belt 130 to reach a position that can block the return air outlet 211, and then the driving component is closed. During the subsequent operation of the air conditioner, the filter 140 with a higher degree of cleanliness can not only effectively filter the airflow passing through it, but also cause less resistance to the airflow, thereby realizing long-term continuous use of the filter 140 without disassembling and replacing the filter component 100, thereby correspondingly improving the convenience of using the filter component 100 and the air conditioner.

[0030] In addition, compared with one end of the filter 140 being wound on the reel and the other end being fixed to the conveyor belt 130, in the process of changing the location of the filter 140 in the dust removal section area by winding the filter 140 on the reel, when the reel and the conveyor belt 130 slip and cause relative movement, the filter 140 will be stacked and wrinkled, and even be torn in severe cases. In other words, this form requires the reel and the conveyor belt 130 to maintain synchronous transmission in order to ensure the flatness of the mesh section of the filter 140 wound on the reel and the mesh section connected between the conveyor belt 130 and the reel, and has high requirements on the synchronization of the reel and the conveyor belt 130; the air conditioner of the present application adopts a transmission mechanism composed of an active shaft 110, a driven shaft 120 and a conveyor belt 130 to drive the filter The net 140 moves along the circular conveying trajectory so that the entire area of ​​the filter 140 can pass through the dust removal section in sequence, wherein, since the filter 140 is independently connected to the conveyor belt 130 and is not affected by the driving shaft 110 and the driven shaft 120, even if slippage or lag occurs between the driving shaft 110, the driven shaft 120 and the conveyor belt 130, it will not affect the flatness of the filter 140. Therefore, on the basis of ensuring the flatness and effective use of the filter 140 and realizing the dust collection treatment of the entire area of ​​the filter 140 by the dust collection component 300, the synchronous transmission requirements of the conveyor belt 130 and the driving shaft 110 and the driven shaft 120 are reduced, and the failure of the filter assembly 100 is correspondingly reduced, ensuring the normal use of the filter assembly 100.

[0031] Specifically, in this embodiment, Figure 3 and Figure 4As shown, the driving shaft 110 and the driven shaft 120 are both gear shafts, and the conveyor belt 130 is a rack belt and meshes with the gear shaft. The gear shaft and the rack belt are used to improve the synchronous transmission of the conveyor belt and the driving shaft 110 and the driven shaft 120, thereby ensuring the effective transmission of the driving assembly, the driving shaft 110, the driven shaft 120 and the conveyor belt to the filter 140, and reducing the occurrence of slippage between the conveyor belt 130 and the driving shaft 110 and the driven shaft 120.

[0032] In this embodiment, Figure 5 As shown, there are two conveyor belts 130, a frame 150 is connected between the two conveyor belts 130, and the filter 140 is supported by the frame 150. The conveyor belts 130 are respectively located on both sides of the width direction of the filter 140 to unfold both ends of the width direction of the filter 140, and the frame 150 between the two conveyor belts 130 can effectively support the filter 140 to ensure the flatness of the filter 140, thereby ensuring that the filter 140 effectively blocks the return air outlet 211.

[0033] Optionally, in this embodiment, if Figure 5 As shown, the return air port 211 is rectangular, and the driving shaft 110 and the driven shaft 120 are located on both sides of the length direction of the return air port 211; the dust suction port 321 of the dust suction component 300 is strip-shaped, and the extension direction of the dust suction port 321 is consistent with the width direction of the return air port 211, and the extension area of ​​the dust suction port 321 completely covers the width range of the return air port 211. In indoor units, especially for wall-mounted indoor units, the length and width dimensions of their appearances vary greatly, and accordingly, the length and width dimensions of the return air port 211 also vary greatly. The driving shaft 110 and the driven shaft 120 are located on both sides of the length direction of the return air port 211, so the conveyor belt 130 and the filter 140 thereon are both conveyed along the length direction of the return air port 211; compared with the dust suction port 321 of the dust suction component 300 extending along the length direction of the return air port 211, the dust suction port 321 of the dust suction component 300 is provided with a longer pipeline, which not only occupies space The dust port 321 of the present application extends along the width direction of the return air port 211 and can cover the width range of the return air port 211. On the basis of ensuring comprehensive dust collection treatment of the exposed area of ​​the filter 140, it can greatly reduce the space occupied and the shielding area of ​​the return air port 211 and the heat exchange component, thereby ensuring that the air conditioner has a higher air intake volume and heat exchange efficiency.

[0034] Specifically, in this embodiment, Figure 4As shown, the dust suction port 321 is located above the circular conveying track. The dust suction port 321, the filter 140 and the air duct assembly are arranged in sequence in the up-down direction. The dust suction port 321 sucks the dust on the top surface of the filter 140 and moves upward away from the air duct assembly into the dust suction assembly 300, which can effectively reduce the dust suction port 321 being located below the circular conveying track, the dust on the bottom surface of the filter 140 is easy to fall downward, and the dust suction port 321 sucks the dust downward, and the dust moves downward toward the air duct assembly, which is easy to cause secondary pollution to the air duct assembly, thereby improving the dust suction effectiveness of the dust suction assembly 300 on the filter 140.

[0035] In this embodiment, the first end of the circular conveying track in the length direction faces the electric control box of the air conditioner, and the dust suction port 321 is located above the first end of the circular conveying track in the length direction. The dust suction port 321 is located at one end of the circular conveying track in the length direction, and has little obstruction on the filter 140. When the dust suction component 300 is started, it can produce a suction and dust removal effect on the area where the electric control box is located on the basis of producing a suction and dust removal effect on the dust removal section, thereby reducing the adverse effects caused by the electric control box being covered by dust; in addition, when the dust suction component 300 is started, it can also drive the air flow in the area where the electric control box is located, thereby enhancing the convective heat dissipation of the air flow to the electric control box. In particular, when the load of the electric control box is large and easily causes temperature rise, the dust suction component 300 can be started to dissipate heat for the electric control box, thereby ensuring the safe use of the electric control box and improving the functionality of the dust suction component 300.

[0036] Optionally, in this embodiment, if Figure 3 and Figure 4 As shown, the dust suction assembly 300 includes a dust suction pipe 310 located outside the shell 200, and the dust suction end of the dust suction pipe 310 is connected to a suction nozzle 320 extending downward, and the suction nozzle 320 extends through the return air port 211 to the top of the annular conveying track. On the one hand, the dust suction pipe 310 is located outside the shell 200. On the basis of realizing the suction and dust removal of the filter 140, it does not occupy the internal space of the shell 200, thereby ensuring the layout of the heat exchange components, air duct components, electrical control boxes, etc. inside the shell 200, and reducing the obstruction of the heat exchange components and air duct channels caused by the dust suction pipe 310; on the other hand, a suction nozzle 320 extending downward to the return air port 211 is provided at the dust suction end of the dust suction pipe 310. When the dust suction component 300 is started, the distance between the suction nozzle 320 and the filter 140 is relatively small, and the suction intensity of the filter 140 is correspondingly relatively large, so that the dust on the filter 140 can be effectively absorbed, thereby improving the dust removal effect of the dust suction component 300 on the filter 140, and ensuring the filtering effect and ventilation effect of the filter 140.

[0037] Specifically, in this embodiment, Figure 1 and Figure 2As shown, the return air outlet 211 is located on the top plate 210 of the shell 200, and the dust suction pipe 310 includes a horizontal section 311 extending along the top plate 210 and a vertical section 312 extending along the side plate of the shell 200, one end of the horizontal section 311 is connected to the top of the suction nozzle 320, and the other end is connected to the top of the vertical section 312; the suction nozzle 320 is attached to the side wall on the corresponding side of the return air outlet 211. The return air outlet 211 is located on the top plate 210, and the dust suction pipe 310 extends from the top plate 210 and the side plate of the shell 200. The volume protruding from the outside of the shell 200 is small, which has a correspondingly small impact on the overall size of the air conditioner. The area in which the user can see the dust suction pipe 310 from the front side of the shell 200 is small or even the dust suction pipe 310 is completely invisible, thereby ensuring the visual experience brought to the user by the appearance of the air conditioner; in addition, the suction nozzle 320 is attached to the side wall of the return air outlet 211, and the shielding area of ​​the return air outlet 211 is small, thereby ensuring the effective air intake of the return air outlet 211.

[0038] Preferably, a first vibration-damping gap is left between the horizontal section 311 and the top plate 210, and a second vibration-damping gap is left between the vertical section 312 and the side plate, so as to reduce noise pollution caused by vibration between the shell 200 and the dust suction pipe 310 when the air conditioner is running, or by vibration between the dust suction pipe 310 and the shell 200 when the dust suction assembly 300 is running.

[0039] In this embodiment, Figure 1 and Figure 2 As shown, the horizontal section 311 includes a first conveying section 311a, a flaring section 311b, and a second conveying section 311c in a direction away from the vertical section 312, wherein the size of the first conveying section 311a is consistent with the shrinking end of the flaring section 311b, and the size of the second conveying section 311c is consistent with the flaring end of the flaring section 311b. The horizontal section 311 is set as a variable diameter section to achieve the connection between the small-sized vertical section 312 and the large-sized suction nozzle 320 along the width direction of the return air port 211, and can reduce the dead angle in the dust suction pipe 310, and correspondingly reduce the deposition of dust in the dust suction pipe 310.

[0040] Optionally, in this embodiment, the output end of the dust suction pipe 310 is connected to the dirty air discharge channel 420 of the fresh air component 400 in the air conditioner. The fresh air component 400 of the air conditioner is also used as the power part of the dust suction component 300, thereby improving the functionality of the fresh air component 400 and reducing the space occupied by the dust suction component 300 in the air conditioner and the cost consumption; when the filter 140 needs to be dusted, the fresh air component 400 can be adjusted to the dirty air discharge mode, and the fan 410 of the fresh air component 400 can produce a suction effect on the dirty air discharge channel 420, and correspondingly produce a suction effect on the dust suction pipe 310 and the suction nozzle 320 through the dirty air discharge channel 420, so that the suction nozzle 320 can suction and remove dust from the filter 140.

[0041] Preferably, a control valve can be provided at the connection between the dust suction pipe 310 and the dirty air discharge channel 420. When only dirty air is needed to be discharged, the control valve can be adjusted to block the connecting port of the dust suction pipe 310; when only dust removal is needed, the control valve can be adjusted to block the port of the dirty air discharge channel 420 facing the room, thereby realizing relatively independent operation of dirty air discharge and suction dust removal.

[0042] Of course, in other embodiments, the dust collection component 300 may also include a power component independent of the fresh air component 400, or the dust collection tube 310 may be connected to a power component independent of the air conditioner during use.

[0043] Specifically, in this embodiment, the filter 140 is a mesh segment, and the extended length of the filter 140 is greater than the length of the return air port 211 and is less than or equal to the one-way length of the circular conveying track. The circular conveying track approximately includes an upper track segment and a lower track segment. When in use, the driving component drives the filter 140 to rotate to the upper track segment through the driving shaft 110 and the conveyor belt 130, and the dust all falls to the top surface of the filter 140; the dust suction port 321 is located at one end of the length direction of the filter 140. When the filter 140 needs to be dusted, the dust suction component 300 is first started, and then the driving component is started to drive the filter 140 to the dust suction port 321. The filter 140 will first be dusted by the dust suction port 321 before it rotates downward to the lower track segment, thereby reducing the situation where the filter 140 rotates to the lower track segment first, its top surface becomes the bottom surface, and the dust on it falls downward into the air duct to cause secondary pollution to the air duct components, etc., and accordingly further ensures the effective filtering of dust by the filter 140.

[0044] Of course, in other embodiments, the filter 140 can also be an annular mesh corresponding to the conveyor belt. When in use, it is not necessary to consider the stop position of the filter 140 to ensure that the filter 140 blocks and filters the return air outlet 211, thereby improving the effectiveness and convenience of the filter assembly 100 and reducing the occurrence of the situation where the stop position of the filter 140 is located on one side when the filter 140 is in the form of a segment, resulting in the partial exposure of the return air outlet 211.

[0045] In this embodiment, the air conditioner may further include a cleaning component disposed on the housing 200, and the cleaning end of the cleaning component is located upstream of the dust removal section, and is used to clean the dust in the corresponding area of ​​the filter 140. When the filter 140 needs to be dusted, the filter 140 moves toward the dust suction port 321 under the drive of the driving component, and the cleaning component first cleans the filter 140 to loosen the dust on it, and then the filter 140 section with loose dust is rotated to the dust removal section, and the loose dust is more easily separated from the filter 140 and enters the dust suction component 300 under the suction action of the dust suction port 321, thereby further improving the dust removal efficiency of the dust suction component 300 on the filter 140, and correspondingly further improving the effective filtering and ventilation of the filter 140.

[0046] Finally, it should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0047] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An air conditioner, characterized in that: The invention comprises a filter assembly (100) and a housing (200) provided with a return air outlet (211), wherein the filter assembly (100) comprises a driving shaft (110) rotatably connected to the housing (200), a driven shaft (120), and a conveyor belt (130) sleeved on the two, wherein the driving shaft (110) and the driven shaft (120) are located on two opposite sides of the outer periphery of the return air outlet (211), and the conveyor belt (130) is connected to a filter (140) capable of shielding the return air outlet (211); The air conditioner further comprises a driving assembly and a dust collecting assembly (300) arranged on the housing (200); the driving assembly is connected to the driving shaft (110) and is used to drive the driving shaft (110) to rotate; the annular transmission track of the filter (140) comprises a dust collecting section, and the dust collecting section is located in the dust collecting area of ​​the dust collecting assembly (300).

2. The air conditioner according to claim 1, characterized in that: The return air port (211) is rectangular, and the driving shaft (110) and the driven shaft (120) are located on both sides of the return air port (211) in the length direction; the dust suction port (321) of the dust suction component (300) is strip-shaped, and the extension direction of the dust suction port (321) is consistent with the width direction of the return air port (211), and the extension area of ​​the dust suction port (321) completely covers the width range of the return air port (211).

3. The air conditioner according to claim 2, characterized in that: The dust suction port (321) is located above the annular conveying track.

4. The air conditioner according to claim 3, characterized in that: The first end of the annular conveying track in the length direction faces the electric control box of the air conditioner, and the dust suction port (321) is located above the first end of the annular conveying track in the length direction.

5. The air conditioner according to claim 3, characterized in that: The dust suction assembly (300) comprises a dust suction pipe (310) located outside the shell (200), and the dust suction end of the dust suction pipe (310) is connected to a suction nozzle (320) extending downward, and the suction nozzle (320) passes through the return air port (211) and extends to above the annular conveying track.

6. The air conditioner according to claim 5, characterized in that: The return air outlet (211) is located on the top plate (210) of the shell (200); the dust suction pipe (310) comprises a horizontal section (311) extending along the top plate (210) and a vertical section (312) extending along the side plate of the shell (200); one end of the horizontal section (311) is connected to the top end of the suction nozzle (320), and the other end is connected to the top end of the vertical section (312); the suction nozzle (320) is attached to the side wall on the corresponding side of the return air outlet (211).

7. The air conditioner according to claim 5 or 6, characterized in that: The output end of the dust suction pipe (310) is connected to the dirty air discharge channel (420) of the fresh air component (400) in the air conditioner.

8. The air conditioner according to any one of claims 1 to 6, characterized in that: The air conditioner further comprises a cleaning component arranged on the housing (200), wherein a cleaning end of the cleaning component is located upstream of the dust removal section and is used to clean dust in a corresponding area of ​​the filter (140).

9. The air conditioner according to any one of claims 1 to 6, characterized in that: The driving shaft (110) and the driven shaft (120) are both gear shafts, and the conveyor belt (130) is a rack belt and meshes with the gear shaft.

10. The air conditioner according to any one of claims 1 to 6, characterized in that: There are two conveyor belts (130), a frame (150) is connected between the two conveyor belts (130), and the filter screen (140) is supported by the frame (150).

11. The air conditioner according to any one of claims 1 to 6, characterized in that: The filter screen (140) is a screen segment, and the extended length of the filter screen (140) is greater than the length of the return air port (211) and less than or equal to the one-way length of the annular transmission track; Alternatively, the filter screen (140) and the conveyor belt are correspondingly ring-shaped screens.

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