Filter screen cleaning module, air conditioner indoor unit and air conditioner

Abstract

The invention discloses a filter screen cleaning module, an air conditioner indoor unit and an air conditioner, and belongs to the technical field of air conditioner equipment.The filter screen cleaning module comprises a grating assembly, a filter screen, a cleaning box, a driving assembly and an ultrasonic assembly, and the filter screen is movably arranged in an installation space of the grating assembly; the grid assembly is arranged in the mounting space and can be moved in or out of the mounting space through the opening of the mounting space, the grid assembly is connected with a cleaning box, and an ultrasonic assembly and a driving assembly are arranged on the cleaning box, so that the grid assembly, the filter screen, the ultrasonic assembly and the driving assembly form a whole module structure; when the filter screen needs to be cleaned, the driving assembly drives the filter screen to move out of the installation space and enter the water tank to be cleaned, the filter screen moves between the installation space and the water tank of the cleaning box, automatic cleaning of the filter screen is achieved, ultrasonic waves generated by the ultrasonic assembly are transmitted to the cleaning box, water in the water tank oscillates, and the filter screen is cleaned more thoroughly. Cleaning is more efficient, and the cleaning effect is better.

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioning equipment, and in particular to a filter cleaning module, an indoor unit of an air conditioner, and an air conditioner. Background Art

[0002] An indoor unit of an air conditioner usually sets a filter at the air inlet for filtration. During use, the filter needs to be cleaned regularly to remove the dust accumulated on the filter.

[0003] In related technologies, some indoor units of air conditioners are provided with a filter cleaning device, and specifically use a brush to clean the filter. Since the brush cleaning cannot be done dry, water needs to be added for rinsing, and the rinsing process needs to be repeated, resulting in low work efficiency and unsatisfactory cleaning effect. Summary of the Invention

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art. For this purpose, the present invention provides a filter cleaning module applicable to an indoor unit of an air conditioner, which can effectively improve the cleaning efficiency and has a better cleaning effect.

[0005] The present invention also provides an indoor unit of an air conditioner and an air conditioner applying the above filter cleaning module.

[0006] According to the filter cleaning module of the first aspect of the embodiments of the present invention, it includes a filter, a grille assembly, an ultrasonic assembly, and a driving assembly. The grille assembly is provided with an installation space which has an opening for the filter to move into or out of the installation space; the cleaning box is connected to the grille assembly and has a water tank, and the installation space is communicated with the water tank through the opening; the ultrasonic assembly is connected to the cleaning box and is used to generate ultrasonic waves to oscillate the water in the water tank; the driving assembly is arranged in the cleaning box and is connected to the filter for driving the filter to move between the installation space and the water tank.

[0007] The filter cleaning module according to the embodiments of the present invention has at least the following beneficial effects:

[0008] The filter screen is movably arranged in the installation space of the grille assembly, and can be moved into or out of the installation space through the opening of the installation space. The grille assembly is connected with a cleaning box, and an ultrasonic component and a driving component are arranged on the cleaning box, so that the grille assembly, the filter screen, the ultrasonic component and the driving component form an entire modular structure, which is convenient for installation; when the filter screen needs to be cleaned, the driving component drives the filter screen to move out of the installation space and into the water tank for cleaning, so that the filter screen moves between the installation space and the water tank of the cleaning box, realizing automatic cleaning of the filter screen, and the ultrasonic wave generated by the ultrasonic component is transmitted to the cleaning box, causing the water in the water tank to oscillate, so that the dust accumulated on the filter screen can be effectively removed, making the filter screen cleaner, more efficient in cleaning, and better in cleaning effect.

[0009] According to some embodiments of the present invention, the installation space includes a first cavity and a second cavity, both the first cavity and the second cavity are communicated with the opening, the grille assembly includes a first grille, a second grille and a third grille arranged at intervals, a first cavity is formed between the first grille and the second grille, a second cavity is formed between the second grille and the third grille, and the first cavity and the second cavity are used to guide the two ends of the filter screen to move.

[0010] According to some embodiments of the present invention, the first grille, the second grille and the third grille are arranged in sequence from top to bottom, the cleaning box is arranged at one end of the grille assembly along its width direction, the grille assembly is provided with a bending section connected with the cleaning box, and the bending section is arranged in a direction away from the first grille.

[0011] According to some embodiments of the present invention, along the direction of the grille assembly away from the water tank, the lengths of the first grille and the third grille are both greater than the length of the second grille, and the ends of the first cavity and the second cavity away from the water tank are communicated to form a third cavity, and the height of the third cavity is less than the distance between the top wall of the first cavity and the bottom wall of the second cavity.

[0012] According to some embodiments of the present invention, the grille assembly includes a bracket, the second grille and the third grille are integrally formed with the bracket, and the first grille is detachably connected to the bracket.

[0013] According to some embodiments of the present invention, the driving component includes a roller and a driver, the roller is rotatably connected in the water tank, and the driver drives the roller to rotate to drive the filter screen to move around the roller.

[0014] According to some embodiments of the present invention, an overflow port is arranged on the side wall of the water tank, and the height of the overflow port relative to the bottom wall of the water tank is greater than the height of the roller relative to the bottom wall of the water tank.

[0015] According to some embodiments of the present invention, the cleaning box is integrally formed with the grille assembly, a metal part covers the outer side of the cleaning box, the ultrasonic assembly includes at least two ultrasonic vibrating sheets, and at least two of the ultrasonic vibrating sheets are connected to the metal part at intervals.

[0016] According to some embodiments of the present invention, the cleaning box is a metal part, the cleaning box is detachably connected to the grille assembly, the ultrasonic assembly includes at least two ultrasonic vibrating sheets, and at least two of the ultrasonic vibrating sheets are connected to the cleaning box at intervals.

[0017] According to some embodiments of the present invention, the filter screen cleaning module further includes an insulating housing covering the outer surface of the metal part.

[0018] According to some embodiments of the present invention, at least two of the filter screens and the installation spaces are respectively provided, at least two of the installation spaces are arranged at intervals along the length direction of the grille assembly, the filter screens are arranged in one-to-one correspondence with the installation spaces, and at least two of the filter screens are respectively connected to the driving assembly.

[0019] According to some embodiments of the present invention, the grille assembly includes a bracket, the first grille is detachably connected to the bracket, at least two of the first grilles are provided, the bracket is provided with at least two installation positions corresponding to the first grille one by one, at least two of the installation positions are arranged at intervals along the length direction of the bracket, and the first grille is slidably connected to the installation positions.

[0020] According to some embodiments of the present invention, the grille assembly includes a bracket, two filter screens are provided, the cleaning box includes a first box body and a second box body connected to the bracket, the driving assembly includes a first roller, a second roller and a driver, the first roller is rotatably connected to the first box body and is connected to one of the filter screens; the second roller is rotatably connected to the second box body and is connected to the other filter screen; the driver is connected to the middle of the bracket and is respectively drivingly connected to the first roller and the second roller.

[0021] According to some embodiments of the present invention, the filter screen cleaning module further includes an insulating housing covering the outer side of the cleaning box, the insulating housing includes a first housing part and a second housing part, the bracket is provided with a buckle and a chute arranged along the length direction of the cleaning box, ports are respectively provided on one side of the first housing part and the second housing part opposite to each other, the first housing part and the second housing part slide along the chute, and the two ports are abutted and respectively provided with slots clamped with the buckle.

[0022] According to some embodiments of the present invention, the cleaning cartridge is provided with a fixing member, one end of the fixing member is connected to a side wall of the cleaning cartridge, and the other end is connected to the grille assembly, so that the fixing member is fixed at the notch of the water tank.

[0023] An indoor air conditioner according to a second aspect of the embodiments of the present invention includes a front frame and the filter cleaning module according to the first aspect of the above embodiments. The front frame is provided with an air inlet; the filter cleaning module is detachably connected to the front frame and is located at the air inlet.

[0024] The indoor air conditioner according to the embodiments of the present invention has at least the following beneficial effects:

[0025] The indoor air conditioner is equipped with the filter cleaning module of the embodiment. The grille assembly, the filter, the ultrasonic assembly and the driving assembly form the entire module structure, which is convenient to install; when the filter needs to be cleaned, the filter is driven by the driving assembly to move out of the installation space and into the water tank for cleaning, so that the filter moves between the installation space and the water tank of the cleaning cartridge, realizing automatic cleaning of the filter, and using the ultrasonic wave generated by the ultrasonic assembly to be transmitted to the cleaning cartridge, causing the water in the water tank to oscillate, which can effectively remove the dust accumulated on the filter, making the filter cleaner, more efficient in cleaning, and better in cleaning effect; the filter cleaning module is detachably connected to the front frame, which can be applied to different model platforms and has higher compatibility.

[0026] According to some embodiments of the present invention, the air inlet is located on the top side of the front frame, the cleaning cartridge is located on the front side of the front frame and below the grille assembly, and the grille assembly covers the air inlet.

[0027] An air conditioner according to a third aspect of the embodiments of the present invention includes the indoor air conditioner according to the second aspect of the above embodiments.

[0028] Since the air conditioner adopts all the technical solutions of the above all embodiments, it has at least all the beneficial effects brought by the technical solutions of the above embodiments, which will not be elaborated one by one here.

[0029] Other features and advantages of the present invention will be described in the following specification, and part of them will become obvious from the specification or be understood by implementing the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 is an overall structural schematic diagram of a filter cleaning module according to an embodiment of the present invention;

[0031] Figure 2 is a structural schematic diagram of the bottom side view of a filter cleaning module according to an embodiment of the present invention;

[0032] Figure 3It is a schematic structural view of the side view of the filter cleaning module according to an embodiment of the present invention;

[0033] Figure 4 It is Figure 3 The schematic cross-sectional structure view in the A-A direction in;

[0034] Figure 5 It is a schematic structural view of the overall structure of the filter cleaning module according to another embodiment of the present invention;

[0035] Figure 6 It is a schematic structural view of the bottom side view of the filter cleaning module according to another embodiment of the present invention;

[0036] Figure 7 It is a schematic structural view of the side view of the filter cleaning module according to another embodiment of the present invention;

[0037] Figure 8 It is Figure 7 The schematic cross-sectional structure view in the B-B direction in;

[0038] Figure 9 It is Figure 8 The enlarged structural view at D in;

[0039] Figure 10 It is Figure 7 The schematic cross-sectional structure view in the C-C direction in;

[0040] Figure 11 It is Figure 8 The partial structural view of the cross-section in the E-E direction in;

[0041] Figure 12 It is a schematic assembly structure view of the left grid member in another embodiment of the present invention;

[0042] Figure 13 It is a schematic assembly structure view of the right grid member in an embodiment of the present invention;

[0043] Figure 14 It is a schematic assembly structure view of the second housing part in an embodiment of the present invention;

[0044] Figure 15 It is Figure 14 The schematic structural view of the bottom side view of the shown embodiment;

[0045] Figure 16 It is a schematic structural view of the air conditioner indoor unit in an embodiment of the present invention;

[0046] Figure 17 It is a schematic front structure view of the air conditioner indoor unit in an embodiment of the present invention;

[0047] Figure 18 It is Figure 17Schematic cross-sectional structure diagram in the F-F direction.

[0048] Reference numerals:

[0049] Grille assembly 100; installation space 110; first cavity 111; second cavity 112; third cavity 113; opening 114; first grille 120; left grille member 121; first limiting rib 1211; first limiting groove 1212; right grille member 122; second limiting rib 1221; second limiting groove 1222; extension section 123; second grille 130; third grille 140; bending section 150; bracket 160; support 161; chute 162; buckle 163; first plug end 1631; second plug end 1632; first installation position 164; first limiting buckle 1641; second installation position 165; second limiting buckle 1651; guiding groove 166; first limiting member 170; first clamping groove 171; second limiting member 180;

[0050] Filter screen 200;

[0051] Cleaning box 300; first box body 301; second flange 3011; second box body 302; water tank 310; support base 311; first flange 3111; metal part 320; overflow port 330; fixing part 340; boss 350; insulating shell 360; first shell part 361; first slot 3611; third flange 3612; second shell part 362; second slot 3621;

[0052] Drive assembly 400; motor 410; drum 420; first drum 421; second drum 422; gear set 430; transmission shaft 440; waterproof ring 450;

[0053] Ultrasonic assembly 500; ultrasonic vibrating sheet 510;

[0054] Chassis 600; volute 610; air duct 611;

[0055] Front frame 700; air inlet 710; air outlet 720; panel 730;

[0056] Filter screen cleaning module 1000;

[0057] Air conditioner indoor unit 2000. Detailed implementation manners

[0058] In order to more clearly understand the above-mentioned objects, features and advantages of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific implementation manners. It should be noted that, without conflict, the embodiments of the present application and the features in the embodiments can be combined with each other.

[0059] Embodiments of the present invention will be described in detail below. Examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the accompanying drawings are exemplary and are only used to explain the present invention and should not be construed as a limitation to the present invention.

[0060] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by terms such as "front", "rear", "upper", "lower", "left", "right", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present invention.

[0061] In the description of the present invention, if terms such as "first", "second", etc. are described, they are only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or implicitly indicating the sequence relationship of the indicated technical features.

[0062] In the description of the present invention, it should be noted that terms such as "set", "installed", "connected", etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific content of the technical solution.

[0063] The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described below are some embodiments of the present invention, not all embodiments.

[0064] During the long-term use of a wall-mounted air conditioner indoor unit, the filter screen at the air inlet will accumulate dust, which is prone to breed bacteria and affect air quality. Therefore, it needs to be cleaned regularly. In the related art, a wall-mounted air conditioner indoor unit uses a brush and flushing to clean the filter screen. This solution adds a pumping motor and a solenoid valve, and there are problems such as many components, high cost, low assembly efficiency, and easy failure. Moreover, the flushing process requires repeated operations, the working procedure is complex, the working efficiency is low, and the cleaning effect is difficult to satisfy.

[0065] In addition, by installing the brush in the space where the filter screen is located in the air conditioner indoor unit, since it is necessary to drive the brush to move, the body size needs to be increased, which easily leads to a body size that is too large for users to accept. The solution has poor compatibility, high cost, and the overall structure of the filter screen cleaning device is complex, and the disassembly and assembly operation of the filter screen is cumbersome, which is not conducive to maintenance.

[0066] To solve the above problems, an embodiment of the present invention provides a filter screen cleaning module 1000. The filter screen cleaning module 1000 is applicable to an air conditioner indoor unit 2000, specifically a wall-mounted air conditioner indoor unit. The following refers toFigures 1 to 15 To introduce the filter cleaning module 1000 of the embodiments of the present invention.

[0067] Refer to Figure 1 、 Figure 3 and Figure 4 As shown in

[0068] and

[0069]

[0070] Figure 1 Refer to Figure 1 The filter cleaning module 1000 provided by the embodiments of the present invention includes a grille assembly 100, a filter 200, a cleaning box 300, and a driving assembly 400. The grille assembly 100 is provided with an installation space 110, which is matched with the filter 200. The filter 200 is movably installed in the installation space 110. The cleaning box 300 is arranged on one side of the grille assembly 100. A water tank 310 is arranged in the cleaning box 300. The driving assembly 400 is connected to the filter 200 and is used to drive the filter 200 to move between the installation space 110 and the water tank 310, so that the filter 200 can be cleaned by the water in the water tank 310. Specifically, the filter cleaning module 1000 of the embodiment is used to be installed on the front frame 700 of the air conditioner indoor unit 2000. The grille assembly 100 covers the air inlet 710 of the front frame 700. The grille assembly 100 can be understood as the installation structure of the filter 200. The installation space 110 is a receiving structure on the grille assembly 100 for the filter 200 to move. The filter 200 can be received in the receiving structure, and the receiving structure has a guiding effect, such as a track, a guiding groove, or other guiding structures. It can be understood that after the filter 200 is installed in place, when the air conditioner indoor unit 2000 operates, air will pass through the grille assembly 100 and the filter 200 and enter the interior. The air can be filtered by the filter 200. When the filter 200 needs to be cleaned, under the action of the driving assembly 400, the filter 200 can be guided into the water tank 310 for cleaning, and the filter 200 can be moved out of the water tank 310, so that the filter 200 can move back and forth between the installation space 110 and the water tank 310, and the dust accumulated on the filter 200 can be removed, realizing automatic cleaning of the filter 200.As shown, the grille assembly 100 is generally rectangular, and an installation space 110 is formed inside the grille assembly 100. In the embodiment, the installation space 110 is specifically a cavity structure. The cleaning box 300 and the driving assembly 400 are located at the bottom of the grille assembly 100. The cleaning box 300 is arranged along the length direction of the grille assembly 100. An opening 114 is provided on one side of the installation space 110 facing the cleaning box 300, and the opening 114 is also arranged along the length direction of the grille assembly 100. The opening 114 can allow the filter screen 200 to move into or out of the installation space 110, and the opening 114 is oppositely arranged with the notch of the water tank 310. The installation space 110 is communicated with the water tank 310 through the opening 114, so that the filter screen 200 can enter the installation space 110 from the opening 114 and can enter the water tank 310 through the opening 114 for cleaning.

[0071] Among them, the driving assembly 400 may include a motor 410 and a transmission structure. The motor 410 drives the filter screen 200 to move through the transmission structure. For example, the transmission structure may be components such as rollers and gears. Taking the gear as an example, a rack is provided on the filter screen 200, and the gear meshes with the rack. By driving the gear to rotate through the motor 410, the filter screen 200 is driven to move.

[0072] Refer to Figure 2 As shown, the filter screen cleaning module 1000 further includes an ultrasonic assembly 500. The ultrasonic assembly 500 is connected to the cleaning box 300. Specifically, the ultrasonic assembly 500 is arranged at the bottom of the cleaning box 300. The ultrasonic assembly 500 is used to generate ultrasonic waves. By transmitting the ultrasonic waves into the water tank 310, the water in the water tank 310 can be made to generate high-frequency oscillations, which can accelerate the shedding of dirt such as dust from the filter screen 200. In this way, the filter screen 200 can be cleaned more cleanly, the cleaning efficiency can be improved, and the cleaning is more efficient and convenient.

[0073] It can be understood that the grille assembly 100, the filter screen 200, the ultrasonic assembly 500, and the driving assembly 400 are assembled to form the entire module structure. That is to say, the filter screen cleaning module 1000 is an independent component, which is detachably assembled on the front frame 700. When the air conditioner indoor unit 2000 is assembled, after the assembly of the filter screen cleaning module 1000 is completed, the entire filter screen cleaning module 1000 can be installed on the front frame 700. The maintenance and installation are more convenient, the cost is reduced, and it can be compatible with different model platforms, which is beneficial to the expansion of the filter screen cleaning module 1000 on various model platforms and has higher compatibility.

[0074] Specifically refer to Figure 16As shown, the air inlet 710 is located at the top of the front frame 700. The filter cleaning module 1000 is embedded in the front frame 700. After being installed in place, the cleaning box 300, the drive assembly 400, and the ultrasonic assembly 500 are located inside the indoor unit 2000 of the air conditioner, without affecting the appearance of the whole machine. Of course, the shape of the grille assembly 100 is not limited to a rectangle, and it can also be square, oval, etc. The specific size of the filter cleaning module 1000 can be designed according to the size of the air inlet 710.

[0075] Referring to Figure 3 and Figure 4 As shown, the installation space 110 includes a first cavity 111 and a second cavity 112. The grille assembly 100 includes a first grille 120, a second grille 130, and a third grille 140. The first grille 120, the second grille 130, and the third grille 140 are arranged at intervals from top to bottom in sequence. Among them, a first cavity 111 is formed between the first grille 120 and the second grille 130, and a second cavity 112 is formed between the second grille 130 and the third grille 140. The first cavity 111 is located above the second cavity 112, and the filter screen 200 can move back and forth between the first cavity 111 and the second cavity 112. Among them, the first cavity 111 can be understood as the upper track, and the second cavity 112 can be understood as the lower track.

[0076] Specifically, the first cavity 111 is communicated with the second cavity 112. The filter screen 200 can slide out of the first cavity 111 and enter the second cavity 112, or it can slide into the first cavity 111 from the second cavity 112. It can be understood that both the first cavity 111 and the second cavity 112 are communicated with the water tank 310. Under the action of the drive assembly 400, the filter screen 200 slides out of the first cavity 111 and enters the water tank 310, and after being cleaned by the water tank 310, it enters the second cavity 112; then it slides into the water tank 310 from the second cavity 112, and after being cleaned by the water tank 310, it returns to the first cavity 111 again. Repeating the above operations can clean the filter screen 200 multiple times. Combining the ultrasonic assembly 500 to oscillate the water in the water tank 310 makes the cleaning more efficient.

[0077] Referring to Figure 4 As shown, it can be understood that the first cavity 111 and the second cavity 112 are distributed in the height direction, which is beneficial to saving the installation space of the grille assembly 100. The water tank 310 is located on the same side of the first cavity 111 and the second cavity 112. Through the first cavity 111 and the second cavity 112, both ends of the filter screen 200 can be guided to move. As Figure 4 shows the state of the filter screen 200 during the moving process. One end of it is located in the first cavity 111, and the other end is located in the second cavity 112. That is to say, during the moving process, both ends of the filter screen 200 can be separated from each other without affecting each other, avoiding the filter screen 200 from bending and overlapping itself, which increases the resistance.

[0078] Considering that when the filter screen 200 moves back and forth between the first cavity 111 and the second cavity 112, it is necessary to bend and change the direction of the filter screen 200. In the embodiment, the filter screen 200 can be made of a flexible frame structure, which is convenient for the filter screen 200 to be bent and slide in the first cavity 111 and the second cavity 112.

[0079] It should be noted that the first grille 120, the second grille 130 and the third grille 140 respectively have a grid structure, and air can flow through all of them. When the air conditioner indoor unit 2000 is working normally, the filter screen 200 can be located in the first cavity 111 or the second cavity 112, so that the air is filtered by the filter screen 200.

[0080] Refer to Figure 1 and Figure 4 As shown, the cleaning box 300 is arranged at one end of the grille assembly 100 along its width direction. Specifically, considering that the cleaning box 300 protrudes from the bottom of the grille assembly 100, combined with Figure 18 it can be understood that in order to enable the filter screen cleaning module 1000 to be matched and installed on the air conditioner indoor unit 2000, in the embodiment, the cleaning box 300 is located on the front side of the grille assembly 100. When the filter screen cleaning module 1000 is installed on the air conditioner indoor unit 2000, the cleaning box 300 is located on the front side of the air conditioner indoor unit 2000. In this way, the space on the front side of the air conditioner indoor unit 2000 can be fully utilized, and the structural design is reasonable, realizing the smooth movement of the filter screen 200.

[0081] Refer to Figure 1 and Figure 4 As shown, in some embodiments, the driving assembly 400 includes a roller 420 and a driver. The roller 420 is arranged along the length direction of the cleaning box 300. The two ends of the roller 420 are rotatably connected to the opposite side walls in the water tank 310. The roller 420 contacts the filter screen 200. As Figure 4 shown, when the driver drives the roller 420 to rotate, it can drive the filter screen 200 to move around the roller 420. The filter screen 200 can be bent by itself, so that the filter screen 200 moves along the first cavity 111 and the second cavity 112.

[0082] It can be understood that in the embodiment, the driver is the motor 410. A rotating shaft may be provided inside the drum 420, and the motor 410 is connected to the rotating shaft through a gear set 430, so as to drive the drum 420 to rotate. The outer peripheral wall of the drum 420 and the filter screen 200 can be in contact through the connection mode of transmission gears. For example, a transmission gear is sleeved on the outer peripheral wall of the drum 420, and a tooth portion meshing with the transmission gear is provided on the filter screen 200. In this way, when the drum 420 rolls, it can drive the filter screen 200 to move, making it not easy for the filter screen 200 to shift. By driving the drum 420 to rotate forward or backward through the motor 410, the filter screen 200 can be slid from the first cavity 111 to the second cavity 112, or from the second cavity 112 to the first cavity 111.

[0083] Referring to Figure 1 As shown, the motor 410 is installed on the outer side wall on the right side of the cleaning box 300. The gear set 430 includes a driving wheel and a driven wheel. The driving wheel is connected to the driving shaft of the motor 410, the driven wheel is connected to the rotating shaft, and the driving wheel meshes with the driven wheel to drive the drum 420 to rotate.

[0084] Referring to Figure 4 As shown, since the drum 420 is located in the water tank 310, when the drum 420 drives the filter screen 200 to move around it, different parts of the filter screen 200 can be immersed in the water tank 310 for cleaning. The dust on the surface is removed by water washing, and the ultrasonic component 500 is used to generate oscillations in the water in the water tank 310, making the cleaning cleaner and more efficient; compared with the cleaning method of using a brush and water flushing, it can prevent dust from flying, the cleaning procedure is simpler, the cleaning cleanliness is higher, and the cost is lower.

[0085] It should be noted that in the embodiment of the present invention, the double cavity is combined with the drum 420. The double cavity not only has a guiding effect on the filter screen 200, but also can be used as the installation space 110 of the filter screen 200. Only one motor 410 and one drum 420 are required to meet the driving requirements, realizing the back-and-forth rolling cleaning of the filter screen 200, simplifying the structure, reducing the material cost and improving the production efficiency, and improving the reliability of the filter screen cleaning module 1000 while reducing the cost.

[0086] Considering that the grille assembly 100 has a structure of three layers of grilles and two layers of cavities, and the overall thickness is relatively high. When the filter screen cleaning module 1000 is installed on the top of the air conditioner indoor unit 2000, it will increase the height of the whole machine. The inventor found that when the air conditioner indoor unit 2000 adopts the above structure, its body height will increase by 40 mm, resulting in too large body size and being difficult for users to accept. Therefore, in some embodiments of the present invention, the structure of the grille assembly 100 is further optimized to reduce the overall thickness.

[0087] Referring to Figure 4As shown, in some embodiments, in the direction away from the sink 310 of the grille assembly 100, that is, along the front-rear direction of the grille assembly 100, the lengths of the first grille 120 and the third grille 140 are both greater than the length of the second grille 130. One end of the first cavity 111 and the second cavity 112 away from the sink 310 are connected and communicate to form a third cavity 113. The third cavity 113 is located between the first grille 120 and the third grille 140. It can be understood that the lengths of the first cavity 111 and the second cavity 112 are equal or close, and the length of the third cavity 113 can be close to or slightly less than the length of the first cavity 111 or the second cavity 112. The third cavity 113 is a single-layer cavity, and the filter screen 200 can slide into the third cavity 113 from the first cavity 111 and can also slide into the third cavity 113 from the second cavity 112.

[0088] It can be understood that a part of the installation space 110 has a double-layer cavity, and another part has a single-layer cavity, where the double-layer cavity is located at the front of the grille assembly 100, and the single-layer cavity is located at the rear of the grille assembly 100. The height of the third cavity 113 is less than the distance between the top wall of the first cavity 111 and the bottom wall of the second cavity 112. The single-layer cavity has a smaller thickness dimension relative to the double-layer cavity, so that the thickness of the rear part of the grille assembly 100 can be reduced.

[0089] Specifically, the third cavity 113 can be understood as being formed by the merger of the rear parts of the first cavity 111 and the second cavity 112. The sum of the length of the third cavity 113 and the length of the first cavity 111 or the second cavity 112 is set to be equal to or greater than the length of the filter screen 200. The length of the third cavity 113 is determined according to the length of the second grille 130. Considering that the second grille 130 is used to separate the first cavity 111 and the second cavity 112 to prevent the two ends of the filter screen 200 from overlapping. In some preferred embodiments, the sum of the length of the second grille 130 and the diameter of the drum 420 is set to be equal to or greater than half of the filter screen 200.

[0090] In addition, the heights of the first cavity 111, the second cavity 112, and the third cavity 113 are slightly greater than the thickness of the filter screen 200, so that there is enough clearance for the movement of the filter screen 200. The specific dimensions of the first cavity 111, the second cavity 112, and the third cavity 113 can be set according to the actual dimensions of the filter screen 200. In order to maintain a uniform thickness distribution at the rear of the grille assembly 100, the third grille 140 is thickened at the rear position, which is beneficial to improving the structural strength of the rear part of the grille assembly 100 while ensuring that the third cavity 113 has enough clearance.

[0091] Continue to refer to Figure 4As shown, it should be noted that since the cleaning box 300 is located at the lower front side of the grille assembly 100 and can utilize the space in front of the air conditioner indoor unit 2000. To match the position of the cleaning box 300, the front part of the grille assembly 100 has a bending section 150. Specifically, the first grille 120, the second grille 130, and the third grille 140 are all bent to form the bending section 150, so that the first grille 120, the second grille 130, and the third grille 140 respectively extend to the position of the water tank 310. In this way, the first cavity 111 and the second cavity 112 can communicate with the water tank 310, and the front part of the grille assembly 100 does not affect the overall dimensions of the machine.

[0092] That is to say, when the front part of the grille assembly 100 is bent downward and the rear part only has a single-layer cavity, the thickness dimension of the grille assembly 100 can be reduced, which is beneficial to reducing the height of the fuselage. The inventor adopts the structure of the embodiment shown in Figure 4 For the air conditioner indoor unit 2000, the height of the fuselage does not need to be increased by 40 mm, and even the height of the fuselage can be reduced.

[0093] It can be understood that, referring to Figure 1 As shown, since both the cleaning box 300 and the driving assembly 400 are located at the front side of the air conditioner indoor unit 2000, compared with the way of installing on the left or right side of the air conditioner indoor unit 2000, the space in front of the air conditioner indoor unit 2000 is fully utilized, the occupied space on both left and right sides is reduced, and further the length dimension of the fuselage can be reduced, and the acceptance degree of users is higher.

[0094] Referring to Figure 1 and Figure 4 As shown, in the embodiment, the cleaning box 300 is made of plastic, and the grille assembly 100 and the cleaning box 300 are made into an integrally injection-molded structure through an injection molding process. After injection molding, the cleaning box 300 is fixedly connected to the lower side of the front end of the grille assembly 100. In this way, the number of parts is reduced, the installation is more convenient, and the structure is stable and reliable.

[0095] Referring to Figure 3 and Figure 4 As shown, in some embodiments, a metal part 320 is provided on the outer side of the cleaning box 300. The metal part 320 is specifically a sheet metal part, and the outer surface of the cleaning box 300 is wrapped by the sheet metal part. In this way, the inner layer of the cleaning box 300 is a plastic layer and the outer layer is a metal layer; the ultrasonic component 500 includes a plurality of ultrasonic vibration sheets 510, and the plurality of ultrasonic vibration sheets 510 are arranged at intervals along the length direction of the cleaning box 300 and are connected to the metal part 320. The ultrasonic wave is transmitted through the metal part 320, so that the water in the water tank 310 can have a large enough oscillation frequency, and thus the filter screen 200 can be effectively cleaned.

[0096] Combined with Figure 2 andFigure 3 As shown, in the embodiment, there are four ultrasonic vibration plates 510, and the four ultrasonic vibration plates 510 are connected to the bottom of the cleaning box 300. Of course, the number of ultrasonic vibration plates 510 is not limited to four, and can also be three, five or more, which is specifically selected according to actual application requirements.

[0097] The ultrasonic vibration plates 510 can be distributed in parallel or in series on the bottom side of the cleaning box 300. The ultrasonic vibration plate 510 is a piezoelectric element that converts electrical energy into mechanical energy. It is composed of a piezoelectric ceramic material and a metal electrode. When an electric field is applied, the piezoelectric material will have a piezoelectric effect, thereby generating mechanical vibration to form ultrasonic waves. Ultrasonic waves have the characteristics of short wavelength and high frequency. Through the metal part 320 of the cleaning box 300, high-frequency vibration can be generated, so that the water in the water tank 310 oscillates. The high-frequency oscillation of water molecules will wash down the dust on the filter screen 200, realizing the rapid cleaning of the filter screen 200, which is cleaner than the method of using a brush for cleaning.

[0098] In some embodiments, the cleaning box 300 further includes an insulating housing 360. The insulating housing 360 is made of plastic material and is also called a plastic shell. The plastic shell covers the outer surface of the metal part 320. That is, the cleaning box 300 includes a plastic box body, a metal layer and a plastic shell from the inside to the outside in sequence. The plastic shell has an insulating and protective function, avoiding the exposure of the metal part 320 and preventing the generated ultrasonic waves from hurting people. Of course, the insulating housing 360 is not limited to plastic material, and can also be made of silicone, ceramic and other materials.

[0099] It should be noted that the metal part 320 can be connected to the cleaning box 300 by means of bonding, interference fit, etc.; the plastic shell can be connected to the metal part 320 by means of bonding, interference fit, etc., which is specifically selected according to actual application requirements.

[0100] Refer to Figure 4 As shown, in some embodiments, an overflow port 330 is provided on the side wall of the water tank 310. The height h1 of the overflow port 330 relative to the bottom wall of the water tank 310 is set to be greater than the height h2 of the roller 420 relative to the bottom wall of the water tank 310. Specifically, there is one overflow port 330, and the overflow port 330 can be set near the notch position of the water tank 310. The overflow port 330 can be connected to a water receiving tank in the air conditioner indoor unit 2000, and the water receiving tank is used to receive condensed water.

[0101] It can be understood that the roller 420 drives the filter screen 200 to roll, so that the filter screen 200 enters the water in the water tank 310 for cleaning. Considering that when the water level in the water tank 310 is too high, the water is likely to overflow from the water tank 310 and flow into the air conditioner indoor unit 2000, affecting the normal operation of the air conditioner indoor unit 2000. Therefore, the overflow water can be drained into the water receiving tank through the overflow port 330, and the water is discharged through the water receiving tank to prevent the water from overflowing and affecting the operation of components such as the motor 410 after too much water.

[0102] Of course, this is only an example here. The number of overflow ports 330 is not limited to one, and can also be two or more. The overflow ports 330 can be evenly distributed along the length direction of the cleaning box 300; in addition, the overflow ports 330 are not limited to being connected to the water receiving tank, and can also be directly discharged from the air conditioner indoor unit 2000 through a drain pipe.

[0103] Refer to Figure 1 and Figure 3 As shown, the cleaning box 300 is provided with a fixing member 340. One end of the fixing member 340 is connected to one side wall of the cleaning box 300, and the other end is arranged towards the opposite side wall and connected to the grille assembly 100, so that the fixing member 340 is fixed at the notch of the water tank 310. The fixing member 340 plays a limiting role on the roller 420 and can effectively prevent the roller 420 from disengaging from the water tank 310 during rotation.

[0104] Specifically, the water tank 310 is generally rectangular. The notch of the water tank 310 is located on the upper side, and the size of the notch is larger than that of the roller 420, so that the roller 420 can be installed into the water tank 310 through the notch. The fixing member 340 is an independent part and can be components such as a buckle or a baffle. Taking the buckle as an example, a boss 350 is provided on the outer side wall of the water tank 310 away from the grille assembly 100, and a card slot is provided on the grille assembly 100. The card slot can be arranged at the position of the first grille 120 or the second grille 130. One end of the buckle is fixedly connected to the boss 350, and the other end is inserted into the card slot, so that the buckle can be fixed at the notch. Among them, the buckle can be connected to the boss 350 by screws, which is convenient for installation.

[0105] Of course, this is only an example here. The buckle is not limited to being connected to the cleaning box 300 by screws, and can also be fixed by means such as snap connection. The number of fixing members 340 is not limited to one, and can also be two or more, and is specifically selected according to the sizes of the water tank 310 and the roller 420.

[0106] It can be understood that since the installation space 110 is formed inside the grille assembly 100 and the opening 114 of the installation space 110 is close to the cleaning box 300, the filter screen 200 can only be removed from the installation space 110 through the opening 114. Considering the limitations of the above assembly structure, in order to facilitate the disassembly of the filter screen 200, the grille assembly 100 of the embodiment of the present invention adopts a detachable assembly structure.

[0107] Referring to Figure 5 As shown, in some embodiments, the grille assembly 100 includes a bracket 160. The first grille 120 is detachably connected to the bracket 160. The second grille 130 and the third grille 140 are integrally formed with the bracket 160. The bracket 160 can be understood as the frame structure of the grille assembly 100, which is generally rectangular. The first grille 120 is located at the top of the bracket 160. After removing the first grille 120, the filter screen 200 can be moved to the first cavity 111 and then taken out. The operation is simple and convenient, facilitating the replacement and assembly of the filter screen 200, and the installation and maintenance of the filter screen cleaning module 1000 are more simple and fast.

[0108] It should be noted that the first grille 120 and the bracket 160 can be connected by means of snap connection, plug connection, screw connection, etc. For example, the first grille 120 is provided with a buckle, and the bracket 160 is provided with a slot, and they are fixed by the cooperation of the buckle and the slot. Specifically, it can be set according to application requirements.

[0109] Referring to Figure 7 and Figure 8 As shown, in the embodiment, the first cavity 111 and the second cavity 112 are distributed in the height direction. The water tank 310 is located on the same side of the first cavity 111 and the second cavity 112. The first cavity 111 and the second cavity 112 can guide the movement of both ends of the filter screen 200. During the movement, both ends of the filter screen 200 can be separated from each other without affecting each other, avoiding the bending and overlapping of the filter screen 200 itself and increasing the resistance.

[0110] Referring to Figure 1 and Figure 5 As shown, the filter screen cleaning module 1000 of the embodiment of the present invention includes two filter screens 200. Taking Figure 1 the direction shown as the reference direction, the two filter screens 200 are respectively a left filter screen and a right filter screen. Two installation spaces 110 are formed in the grille assembly 100, including a left installation space 110 and a right installation space 110. The left filter screen is movably installed in the left installation space 110, and the right filter screen is movably installed in the right installation space 110, realizing the movable assembly of the left filter screen and the right filter screen.

[0111] It can be understood that the left installation space 110 and the right installation space 110 are respectively provided with openings 114, and both openings 114 are arranged facing the water tank 310. In this way, the left filter screen can enter the water tank 310 from the left installation space 110 for cleaning, and the right filter screen can enter the water tank 310 from the right installation space 110 for cleaning, and the left and right filter screens 200 can be cleaned simultaneously.

[0112] It should be noted that Figure 1In the illustrated embodiment, the drum 420 can drive two filter screens 200 to move simultaneously. The motor 410 is installed on the right side of the cleaning box 300, and the motor 410 can drive the drum 420 to rotate through a gear set. In some embodiments, two drums 420 can be provided, one of which is connected to the left filter screen and the other is connected to the right filter screen. The two drums 420 are linked through a rotating shaft or other transmission components, so that one motor 410 can drive the two drums 420 to rotate. In addition, Figure 1 the cleaning box 300 in

[0113] Of course, this is only an example here. The number of the filter screens 200 and the installation spaces 110 is not limited to two, and can also be three or more, which is specifically selected according to actual application requirements.

[0114] Referring to Figure 5 as shown, in some embodiments, two first grilles 120 are provided. The top of the bracket 160 is provided with a first installation position 164 and a second installation position 165, and the first installation position 164 and the second installation position 165 are spaced along the length direction of the bracket 160. One of the first grilles 120 is slidably connected in the first installation position 164, and the other first grille 120 is slidably connected in the second installation position 165, so that the two first grilles 120 can be detachably connected to the bracket 160. The two first grilles 120 can also be understood as the left grille and the right grille, so that the left filter screen and the right filter screen can be disassembled and assembled separately, and the maintenance is more flexible.

[0115] It can be understood that the left installation space 110 and the right installation space 110 respectively include a first cavity 111 and a second cavity 112, and the two installation spaces 110 respectively have a second grille 130 and a third grille 140. Combining Figure 8 as shown, taking the left installation space 110 as an example for illustration, the left installation space 110 includes a first cavity 111 and a second cavity 112. The first grille 120, the second grille 130 and the third grille 140 are arranged in sequence from top to bottom. A first cavity 111 is formed between the first grille 120 and the second grille 130, and a second cavity 112 is formed between the second grille 130 and the third grille 140. Among them, the first grille 120 is a detachable structure, which is convenient for removing the left filter screen.

[0116] Driven by the driving component 400, the left filter screen moves out of the first cavity 111 along the opening 114 and enters the water tank 310 for cleaning. After passing through the water tank 310, it enters the second cavity 112. It can also move from the second cavity 112 into the water tank 310, and after being cleaned by the water tank 310, it enters the first cavity 111. In this way, the left filter screen is driven to move back and forth for multiple cleanings, and the ultrasonic component 500 generates ultrasonic waves to cause the water in the water tank 310 to oscillate at a high frequency, so as to improve the cleaning efficiency and make the cleaning of the left filter screen cleaner.

[0117] Referring to Figure 1 , Figure 10 and Figure 11 As shown, it should be noted that both the left filter screen and the right filter screen are driven by the driving component 400. In the embodiment, the driving component 400 includes a first roller 421, a second roller 422, and a motor 410. The cleaning box 300 includes a first box body 301 and a second box body 302. Among them, the first box body 301 corresponds to the left installation space 110. The first roller 421 extends along the length direction of the first box body 301. Both ends of the first roller 421 are rotatably connected inside the first box body 301. The first roller 421 is connected to the left filter screen. The motor 410 drives the first roller 421 to rotate, which can drive the left filter screen to move around the first roller 421, so that the left filter screen moves along the first cavity 111 and the second cavity 112 in the left installation space 110. The second box body 302 corresponds to the right installation space 110. The second roller 422 extends along the length direction of the second box body 302. Both ends of the second roller 422 are rotatably connected inside the second box body 302. The second roller 422 is connected to the right filter screen. The motor 410 drives the second roller 422 to rotate, which can drive the right filter screen to move around the second roller 422, so that the right filter screen moves along the first cavity 111 and the second cavity 112 in the right installation space 110. It should be noted that the first roller 421 and the second roller 422 are driven by the same motor 410, and can achieve synchronous operation, so as to drive the left filter screen and the right filter screen to be cleaned synchronously.

[0118] Referring to Figure 8 As shown, taking the first roller 421 and the left filter screen as an example for illustration, the outer peripheral wall of the first roller 421 and the left filter screen can be in contact through the connection method of transmission gears. For example, the outer peripheral wall of the first roller 421 is provided with teeth, and the left filter screen is provided with tooth parts meshing with the teeth. In this way, when the first roller 421 rolls, it can drive the left filter screen to move, making the left filter screen not easy to shift and the operation more stable.

[0119] Combined with Figure 7 , Figure 10 and Figure 11It can be understood that the motor 410 is fixedly connected to the middle position of the bracket 160. The drive assembly 400 further includes a gear set and a transmission shaft 440. A support 161 is formed at the middle position of the bracket 160. The support 161 is located between the first mounting position 164 and the second mounting position 165, and separates the first box body 301 and the second box body 302 through the support 161. The support 161 is provided with a mounting cavity, and the mounting cavity is located between the first box body 301 and the second box body 302. The gear set is rotatably connected in the mounting cavity, so that the drive assembly 400 can be isolated from water, and the size of the water tank 310 is not affected by the gear set.

[0120] Referring to Figure 10 and Figure 11 As shown, in the embodiment, the gear set has three gears. The motor 410 is located outside the mounting cavity. The motor 410 is connected to one of the gears through a drive shaft. The transmission shaft 440 is connected to the gear far from the motor 410. Both ends of the transmission shaft 440 pass through the first box body 301 and the second box body 302 respectively, and are connected to the first roller 421 and the second roller 422. In this way, the motor 410 drives the gear set to operate, drives the transmission shaft 440 to rotate through the gear set, so that the transmission shaft 440 can drive the first roller 421 and the second roller 422 to rotate synchronously. The transmission shaft 440 and the first roller 421 and the second roller 422 can be connected by direct coupling, coupling and other means, so as to realize that one motor 410 can drive two rollers 420 to rotate at the same time.

[0121] It can be understood that since the drive assembly 400 is installed in the middle position of the bracket 160 and drives two rollers 420 to rotate at the same time, the forces on the two rollers 420 can be more uniform, the rotation consistency is better, and the movement of the left filter screen and the right filter screen is more stable. In addition, compared with Figure 1 the overall structure of the embodiment shown, it can also save length space. The drive assembly 400 will not increase the overall length of the filter screen cleaning module 1000, which is convenient for module installation, and can shorten the length of the power cord of the motor 410. In the embodiment, the length of the power cord can be reduced from 1 meter to 0.5 meter, reducing the wiring cost.

[0122] It should be noted that the sizes of the first box body 301 and the second box body 302 in the embodiment can meet the requirements of accommodating the first roller 421 and the second roller 422, and driving the left filter screen and the right filter screen into the water tank 310 for cleaning respectively. It can be understood that the deeper the water tank 310 is, the larger the area where the filter screen 200 enters the water tank 310, the more the water level soaks the filter screen 200, and the better the cleaning effect, so that the filter screen 200 can be cleaned to the greatest extent. Combined with the ultrasonic component 500 to generate oscillations in the water in the water tank 310, the cleaning is cleaner and more efficient; compared with the cleaning method of brushes and water flushing, it can prevent dust from flying, the cleaning cleanliness is higher, and the cost is lower.

[0123] In the embodiment of the present invention, the first cavity 111 and the second cavity 112 not only have a guiding effect on the filter screen 200, but also can serve as the installation space 110 for the filter screen 200. Only one motor 410 and two rollers 420 are required to meet the driving requirements, realizing the back-and-forth rolling cleaning of the left filter screen and the right filter screen, simplifying the structure, reducing the material cost and improving the production efficiency. Moreover, while reducing the cost, the reliability of the filter screen cleaning module 1000 can also be improved.

[0124] Refer to Figure 11 As shown, it can be understood that the driving assembly 400 further includes a bearing, which supports the transmission shaft 440 through the bearing, making the operation of the transmission shaft 440 more stable. Considering that the transmission shaft 440 needs to pass through the cleaning box 300 and be connected to the two rollers 420, in some embodiments, a waterproof ring 450 is provided at the bearing, and the waterproof ring 450 can prevent the water in the water tank 310 from flowing out through the gap between the transmission shaft 440 and the cleaning box 300, increasing the waterproof seal.

[0125] Specifically, since the two ends of the transmission shaft 440 respectively pass through the first box body 301 and the second box body 302, there are two bearings, which respectively support the two ends of the transmission shaft 440, and waterproof rings 450 are respectively provided at the bearings at both ends, which can improve the waterproof performance of the first box body 301 and the second box body 302. Among them, the waterproof ring 450 can be a silicone sealing ring or other forms of sealing rings, and the number of the waterproof rings 450 is not limited to one, and more than two waterproof rings 450 can also be provided at the same bearing to improve the sealing performance.

[0126] It can be understood that since the two first grilles 120 are respectively slidably connected to the first installation position 164 and the second installation position 165, the embodiment of the present invention limits the two first grilles 120 by adding a limiting structure to ensure that they are not easily separated from the bracket 160 after being installed in place. The following is a specific example to illustrate the limiting structure.

[0127] Refer to Figure 12 and Figure 13 As shown, the first grille 120 on the left is the left grille member 121, and the first grille 120 on the right is the right grille member 122. The grille assembly 100 further includes a first limiting member 170 and a second limiting member 180. The left grille member 121 is provided with a first limiting rib 1211, and the first limiting rib 1211 is located on the side of the left grille member 121 close to the cleaning box 300 and extends along the length direction of the left grille member 121; the first limiting member 170 is specifically in a long strip shape, and a first card slot 171 is provided on the first limiting member 170, and the first card slot 171 extends along the length direction of the first limiting member 170.

[0128] It can be understood that guide grooves 166 are formed on both sides of the first installation position 164, facilitating the left grille member 121 to slide into the first installation position 164 along the guide grooves 166. During assembly, when the left grille member 121 is introduced into the first installation position 164 by a flat push method, both ends of the first limiting member 170 are respectively snapped into the guide grooves 166 on both sides, and at the same time, the first limiting rib 1211 is inserted into the first card slot 171 for limiting cooperation, which can prevent the left grille member 121 from loosening.

[0129] Combined with Figure 8 It can be understood that the first limiting rib 1211 is located at the end of the left grille member 121, and the first card slot 171 is arranged facing the left grille member 121. Through the cooperation of the first limiting rib 1211 and the first card slot 171, the left grille member 121 can be prevented from shaking up and down, and the structure is more stable and reliable.

[0130] It should be noted that in the embodiment, a groove is provided on one side of the support 161 facing the first installation position 164. One end of the first limiting member 170 can be inserted into the groove for fixation, and the other end can be fixedly connected to the bracket 160 through a screw. Thus, the left grille member 121 can be fixed with just one screw, which is convenient for assembly. In some embodiments, the left grille member 121 is fixed to the bracket 160 by a snap connection method. However, the snap connection method has problems such as difficult disassembly and long disassembly time. Compared with the snap connection method, Figure 12 using the first limiting member 170 of the shown embodiment to fix the left grille member 121 is more convenient for disassembly, facilitating installation and maintenance, and is beneficial to cost reduction.

[0131] Referring to Figure 13 As shown, the right grille member 122 is provided with a second limiting rib 1221. The second limiting rib 1221 is arranged on the side of the right grille member 122 away from the left grille member 121 and extends along the width direction of the right grille member 122; the second limiting member 180 is specifically in a long strip shape, and a second card slot (not shown in the drawings) is provided on the second limiting member 180, and the second card slot extends along the length direction of the second limiting member 180.

[0132] It can be understood that in the embodiment, guide grooves 166 are formed on both sides of the second installation position 165. The right grille member 122 is moved into the second installation position 165 through the guide grooves 166. A slot matching the second limiting member 180 is formed on the side of the second installation position 165 away from the first installation position 164, enabling the second limiting member 180 to be assembled into the second installation position 165. The second limiting rib 1221 and the second card slot cooperate for limiting, which can prevent the right grille member 122 and the second limiting member 180 from loosening and prevent the second grid from shaking up and down, and the structure is stable and reliable.

[0133] It should be noted that in the embodiment, the first and second limiting members 180 can be fixedly connected to the bracket 160 by a screw, which is convenient for assembly. When disassembling, the right grille member 122 and the second limiting member 180 can be removed from the second installation position 165 together along the guiding groove 166. Compared with the fixing method of the buckle, the structure is simplified, the disassembly is more convenient, which is convenient for installation and maintenance, and is beneficial to reducing costs.

[0134] In addition, in the embodiment, both of the two first grilles 120 are loaded onto the bracket 160 in a flat-pushing manner, and accurate positioning installation is not required, and the installation operation is simple. Moreover, the first limiting member 170 and the second limiting member 180 adopt different installation methods, which has the function of preventing misassembly and is convenient for installation. Of course, this is only an example here. The installation positions of the first limiting member 170 and the second limiting member 180 are not limited to the structures shown in the above embodiments. For example, the first limiting member 170 is arranged on the left side of the left grille member 121, and the second limiting member 180 is arranged on the front side of the right grille member 122.

[0135] Refer to Figure 12 and Figure 13 As shown, the left grille member 121 and the right grille member 122 are respectively provided with extension segments 123, the extension segments 123 are arranged towards the cleaning box 300, and the left grille member 121 and the right grille member 122 are respectively detachably connected to the cleaning box 300 through the extension segments 123.

[0136] In some embodiments, the extension segment 123 is connected to the cleaning box 300 by a screw, which is convenient for installation and disassembly. Moreover, by connecting with the cleaning box 300 through the extension segment 123, the reliability of the left grille member 121 and the right grille member 122 is further improved. After being installed in place, the extension segment 123 covers the notch position of the water tank 310, which can prevent the first roller 421 and the second roller 422 from detaching from the cleaning box 300.

[0137] Refer to Figure 12 As shown, a first limiting groove 1212 is arranged on the side of the left grille member 121 away from the cleaning box 300, and the first limiting groove 1212 is formed on the frame structure of the left grille member 121; a first limiting buckle 1641 is arranged on the bracket 160, and the first limiting buckle 1641 is formed on the peripheral wall position of the first installation position 164. Specifically, it can be a convex block or a convex rib, etc., protruding from the top of the peripheral wall and located at the corner position of the first installation position 164; the first limiting groove 1212 is a concave structure formed on the upper surface of the left grille member 121, and the first limiting buckle 1641 matches the first limiting groove 1212. When the left grille member 121 is pushed flat into the first installation position 164, the first limiting buckle 1641 is inserted into the first limiting groove 1212, so that the left grille member 121 can be pressed tightly by the first limiting buckle 1641, and thus the left grille member 121 can be limited.

[0138] It should be noted that in the embodiment, the first installation position 164 is generally rectangular, and the first limiting buckle 1641 can be arranged at two corner positions on the side of the first installation position 164 away from the cleaning box 300, so as to limit the two corners of the left grid member 121 at the same time. Since the first limiting member 170 and the first limiting rib 1211 limit the front side of the left grid member 121, and the first limiting buckle 1641 cooperates with the first limiting groove 1212 to limit the rear side of the left grid member 121, both the front and rear sides of the left grid member 121 are limited, which is simple to disassemble and assemble, effectively preventing the left grid member 121 from moving up and down and disengaging from the bracket 160, and the structure is more stable and reliable.

[0139] Referring to Figure 13 As shown, a second limiting groove 1222 is provided on the side of the right grid member 122 away from the cleaning box 300, and the second limiting groove 1222 is formed on the frame structure of the right grid member 122; a second limiting buckle 1651 is provided on the bracket 160, and the second limiting buckle 1651 is formed at the peripheral wall position of the second installation position 165, and the second limiting buckle 1651 matches the second limiting groove 1222. When the right grid member 122 is pushed flat into the second installation position 165, the second limiting buckle 1651 is inserted into the second limiting groove 1222, so as to limit the right grid member 122. The assembly structure of the second limiting buckle 1651 and the second limiting groove 1222 can specifically refer to Figure 12 the structure of the first limiting buckle 1641 and the first limiting groove 1212 shown in

[0140] It should be noted that the second limiting member 180 and the second limiting rib 1221 limit the right side of the right grid member 122, and the second limiting buckle 1651 cooperates with the second limiting groove 1222 to limit the rear side of the right grid member 122, so that different sides of the right grid member 122 are limited, effectively preventing the right grid member 122 from moving up and down and disengaging from the bracket 160, and the assembly is more stable and reliable.

[0141] Since the cleaning box 300 is located at the front side of the air conditioner indoor unit 2000;, and the driving component 400 is installed at the middle position of the grille component 100, the cleaning box 300 and the driving component 400 do not occupy the space on the left and right sides of the air conditioner indoor unit 2000;, which can reduce the length dimension of the fuselage and is more acceptable to users.

[0142] Referring to Figure 6As shown, in some embodiments, both the first box body 301 and the second box body 302 are metal parts, specifically made of sheet metal parts. The ultrasonic component 500 includes two ultrasonic vibrating sheets 510, and the two ultrasonic vibrating sheets 510 are respectively connected to the bottoms of the first box body 301 and the second box body 302. The ultrasonic wave is transmitted through the sheet metal part, so that the water in the water tank 310 can have a large enough oscillation frequency, thereby effectively cleaning the filter screen 200.

[0143] The difference from Figure 2 the embodiment shown is that Figure 6 in the embodiment shown, the ultrasonic vibrating sheet 510 is rectangular, and the two ultrasonic vibrating sheets 510 extend along the length direction of the first box body 301 and the second box body 302 respectively. It can be understood that each box body uses a single ultrasonic vibrating sheet 510 to generate ultrasonic waves. Compared with the structure of two or more ultrasonic vibrating sheets 510, the single ultrasonic vibrating sheet has a larger length. In this way, a single ultrasonic vibrating sheet 510 can be used to replace two or more ultrasonic vibrating sheets 510 with smaller sizes, reducing costs and improving the cleaning rate. In terms of cost saving, it is mainly to reduce the assembly cost, material cost and electronic control cost. The reason is that the cost of a single ultrasonic vibrating sheet 510 is equivalent to half of the cost of two sheets, the installation efficiency is higher, and the power supply cost also drops by 1 / 3.

[0144] It should be noted that since the parallel or series operation of two or more ultrasonic vibrating sheets 510 will cause the electronic control cost to increase exponentially, the embodiment of the present invention is optimized to use a high-power single-piece ultrasonic vibrating sheet 510. Taking the first box body 301 as an example, the ultrasonic vibrating sheet 510 is arranged in the middle position of the first box body 301, so that an effective cleaning effect can be achieved while reducing the electronic control cost.

[0145] Referring to Figure 5 and Figure 7 As shown, in some embodiments, the cleaning box 300 further includes an insulating shell 360, and the insulating shell is made of plastic, silica gel or other insulating materials. Taking the plastic insulating shell 360 as an example, the insulating shell 360 can be an integral structure, covering the outside of the first box body 301 and the second box body 302. The plastic shell has an insulating and protective effect, avoiding the exposure of the sheet metal part and preventing the generated ultrasonic wave from hurting people.

[0146] Referring to Figure 14 and Figure 15As shown, in some embodiments, the insulating housing 360 includes a first housing part 361 and a second housing part 362, that is, the insulating housing 360 adopts a split structure. Among them, the first housing part 361 is used to cover the first box body 301, and the second housing part 362 is used to cover the second box body 302. In the embodiment, the lengths of the first box body 301 and the second box body 302 are the same as those of the first housing part 361 and the second housing part 362. The bracket 160 is provided with a snap 163 and a sliding groove 162. Slots are respectively provided on the opposite sides of the first housing part 361 and the second part. The snap 163 is located at the middle position of the bracket 160, and the sliding groove 162 extends along the left-right direction of the cleaning box 300. The first housing part 361 and the second housing part 362 can slide along the sliding groove 162. Through the guiding action of the sliding groove 162, the first housing part 361 and the second housing part 362 can be relatively spliced to form the insulating housing 360. The snap 163 and the slot are cooperated for buckling, so that the first housing part 361 and the second housing part 362 can be fixed, and the assembly is simple. Figure 14 and Figure 15 The installation state in which the first housing part 361 is assembled in place and the second housing part 362 moves along the sliding groove 162 is shown.

[0147] Specifically, open ports are respectively provided on the first housing part 361 and the second housing part 362. The ports of the first housing part 361 and the second housing part 362 are arranged opposite to each other. When the first housing part 361 and the second housing part 362 are assembled in place along the sliding groove 162, the two ports can be abutted against each other, so that the first housing part 361 and the second housing part 362 are spliced to form the insulating housing 360, and are fixed by the cooperation of the snap 163 and the slot.

[0148] Combined Figure 11 It can be understood that the snap 163 is arranged at the bottom of the support 161 and protrudes from the bottom surfaces of the first box body 301 and the second box body 302. The snap 163 extends towards both sides to form a first plug end 1631 and a second plug end 1632. A first slot 3611 is provided at one end of the first housing part 361 facing the second housing part 362, and a second slot 3621 is provided at one end of the second housing part 362 facing the first housing part 361. The first plug end 1631 is cooperated with the first slot 3611 for buckling, and the second plug end 1632 is cooperated with the second slot 3621 for buckling to realize the fixation of the first housing part 361 and the second housing part 362. Taking the first housing part 361 and the first slot 3611 as an example, the first housing part 361 moves along the sliding groove 162 towards the first housing part 361. When approaching the position of the second housing part 362, the first plug end 1631 can be inserted into the first slot 3611 for buckling, so as to achieve the purpose of fixing the first housing part 361.

[0149] It can be understood that the splicing of the first housing 361 and the second housing 362 can be achieved through the cooperation of the insertion buckle 163 and the slot, which is also convenient for disassembly, enabling the first housing 361 and the second housing 362 to quickly separate from the cleaning box 300. The insertion buckle 163 and the slot have different connection forms, and their design can fix the opposite ends of the first housing 361 and the second housing 362 to prevent them from moving up and down and left and right. During the production process, the above installation method can effectively improve the installation efficiency and save the cost of structural parts. The specific forms of the insertion buckle 163 and the slot can be selected according to application requirements.

[0150] It should be noted that, as shown in combination with Figure 8 and Figure 9 , the first housing 361 can be smoothly inserted along the sliding groove 162, which can also effectively prevent misinstallation and enable the first housing 361 to be accurately assembled in place. In addition, in some embodiments, the first housing 361 and the second housing 362 can be respectively connected to the bracket 160 by screws. Specifically, the screw connection positions can be set away from the end of the insertion buckle 163, so that the first housing 361 and the second housing 362 can achieve the purpose of fixation by using one screw respectively, improving the installation efficiency.

[0151] In addition, since the insulating housing 360 is wrapped outside the first box body 301 and the second box body 302, when water overflows or leaks in the first box body 301 and the second box body 302, the insulating housing 360 can prevent the water from further flowing to the outside of the cleaning box 300, avoiding water leakage of the cleaning box 300 and improving the product reliability.

[0152] It should be noted that considering that both the first box body 301 and the second box body 302 are sheet metal parts, in order to facilitate the assembly of the first roller 421 and the second roller 422, in some embodiments, support seats 311 are respectively provided in the first box body 301 and the second box body 302, and both ends of the first roller 421 and the second roller 422 are rotatably connected to the support seats 311. The support seats 311 are made of plastic, and the support seats 311 are generally U-shaped, and their bottoms communicate with the inner cavities of the two box bodies, enabling the two rollers 420 to be immersed in water to ensure that the filter screen 200 is in contact with water.

[0153] Referring to Figure 8 and Figure 9As shown, taking the first box body 301 as an example for illustration, the support base 311 is fixed inside the first box body 301. A chute 162 is formed on one side of the bracket 160. Flanges are respectively provided on both sides of the first shell part 361, the first box body 301, and the support base 311. The flange on one side can be inserted into the chute 162 for assembly. In the chute 162, the first flange 3111 of the support base 311, the second flange 3011 of the first box body 301, and the third flange 3612 of the first shell part 361 are arranged in sequence from top to bottom, enabling the first shell part 361, the first box body 301, and the support base 311 to be slidably assembled along the chute 162. In addition, the flanges on the other side of the first shell part 361 and the support base 311 are connected to the extension section 123 of the first grille 120 by screws. The flange of the first box body 301 can be clamped by the support base 311 and the first shell part 361, so that the cleaning box 300 and the grille assembly 100 can be assembled into an integral structure.

[0154] It can be understood that the grille assembly 100 is assembled by the bracket 160 and the first grille 120, and both the left grille part 121 and the right grille part 122 can be assembled by flat-pushing and sliding; the grille assembly 100 and the cleaning box 300 are of a split structure. The cleaning box 300 is assembled by the first box body 301, the second box body 302, the first shell part 361, and the second shell part 362, enabling multiple components of the filter screen cleaning module 1000 to be easily disassembled, replaced, and have strong maintainability.

[0155] Refer to Figure 16 As shown, an embodiment of the present invention also provides an air conditioner indoor unit 2000, specifically a wall-mounted air conditioner indoor unit, which includes a chassis 600, a front panel 700, and the filter screen cleaning module 1000 of the above embodiment. The front panel 700 is installed on the chassis 600. An air inlet 710 is opened at the top of the front panel 700. The filter screen cleaning module 1000 is detachably connected to the front panel 700, so that the grille assembly 100 covers the air inlet 710; the filter screen cleaning module 1000 is an independent module structure and can be disassembled and assembled as a whole, making maintenance and installation more convenient, enabling the filter screen cleaning module 1000 to be extended to different model platforms with higher compatibility.

[0156] Refer to Figure 17 and Figure 18 As shown, a volute 610 and a wind wheel (not shown in the drawings) are provided on the chassis 600. The volute 610 forms an air duct 611. The air outlet 720 of the air duct 611 is located at the bottom of the front panel 700. The air conditioner indoor unit 2000 further includes a heat exchanger (not shown in the drawings), and the heat exchanger is arranged between the filter screen cleaning module 1000 and the volute 610.

[0157] During normal operation, air enters the interior of the air conditioner indoor unit 2000 through the grille assembly 100 and the filter screen 200 at the air inlet 710, and then is discharged from the air outlet 720 of the air duct 611 after heat exchange through the heat exchanger. The filter screen 200 can filter the air. When the filter screen 200 needs to be cleaned, the motor 410 drives the roller 420 to rotate, which can drive the filter screen 200 to rotate around the roller 420, so that different parts of the filter screen 200 can be immersed in the water tank 310 for cleaning. By transmitting the ultrasonic waves generated by the ultrasonic component 500 to the water tank 310, the water in the water tank 310 can be oscillated. The high-frequency oscillation will improve the cleaning efficiency, make the filter screen 200 cleaner, and realize the automatic cleaning of the filter screen 200.

[0158] It should be noted that in the embodiment, the cleaning box 300 is located on the front side of the front frame 700, which can make full use of the space on the front side of the air conditioner indoor unit 2000 without increasing the height and length dimensions of the fuselage. A panel 730 is also provided on the front side of the front frame 700, through which the cleaning box 300 can be blocked to prevent the cleaning box 300 from being exposed and affecting the appearance. In addition, when the filter screen 200 needs to be cleaned, the panel 730 can be opened to directly add water into the water tank 310, which is convenient to operate. And through the overflow port 330, the excess water can be discharged to the water receiving tank, realizing the design of quick water addition and preventing water leakage and overflow.

[0159] An embodiment of the present invention also provides an air conditioner, including the air conditioner indoor unit 2000 in the above embodiment. The air conditioner indoor unit 2000 is equipped with the filter screen cleaning module 1000 in the above embodiment, which can realize the automatic cleaning of the filter screen 200, with high cleaning efficiency and high cleanliness.

[0160] Since the air conditioner adopts all the technical solutions of the above all embodiments, it has at least all the beneficial effects brought by the technical solutions of the above embodiments, which will not be elaborated one by one here.

[0161] The above has described the embodiments of the present invention in detail with reference to the drawings, but the present invention is not limited to the above embodiments. Within the knowledge scope of those of ordinary skill in the art to which it pertains, various changes can be made without departing from the purpose of the present invention.

Claims

1. A filter screen cleaning module, characterized in that, it includes: a filter screen; a grille assembly provided with an installation space having an opening for the filter screen to move into or out of the installation space; a cleaning box connected to the grille assembly, the cleaning box being provided with a water tank, and the installation space communicating with the water tank through the opening; an ultrasonic component connected to the cleaning box for generating ultrasonic waves to oscillate the water in the water tank; a driving component connected to the filter screen for driving the filter screen to move between the installation space and the water tank.

2. The filter screen cleaning module according to claim 1, characterized in that, the installation space includes a first cavity and a second cavity, both the first cavity and the second cavity communicating with the opening, and the grille assembly includes a first grille, a second grille and a third grille arranged at intervals. A first cavity is formed between the first grille and the second grille, and a second cavity is formed between the second grille and the third grille. The first cavity and the second cavity can guide the two ends of the filter screen to move.

3. The filter screen cleaning module according to claim 2, characterized in that, the first grille, the second grille and the third grille are arranged in sequence from top to bottom, the cleaning box is provided at one end of the grille assembly along its width direction, and the grille assembly is provided with a bent section connected to the cleaning box, and the bent section is arranged in a direction away from the first grille.

4. The filter screen cleaning module according to claim 3, characterized in that, along the direction of the grille assembly away from the water tank, the lengths of the first grille and the third grille are both greater than the length of the second grille. The ends of the first cavity and the second cavity away from the water tank are connected to form a third cavity, and the height of the third cavity is less than the distance between the top wall of the first cavity and the bottom wall of the second cavity.

5. The filter screen cleaning module according to claim 3, characterized in that, the grille assembly includes a bracket, the second grille and the third grille are integrally formed with the bracket, and the first grille is detachably connected to the bracket.

6. The filter screen cleaning module according to claim 1, characterized in that, the driving component includes a roller and a driver, the roller is rotatably connected in the water tank, and the driver drives the roller to rotate to drive the filter screen to move around the roller.

7. The filter screen cleaning module according to claim 6, characterized in that, the side wall of the water tank is provided with an overflow port, and the height of the overflow port relative to the bottom wall of the water tank is greater than the height of the roller relative to the bottom wall of the water tank.

8. The filter screen cleaning module according to claim 1, characterized in that, the cleaning box and the grille assembly are integrally formed, the outside of the cleaning box is covered with a metal part, and the ultrasonic component includes at least two ultrasonic vibrating pieces, and at least two of the ultrasonic vibrating pieces are connected to the metal part at intervals.

9. The filter screen cleaning module according to claim 1, characterized in that, The cleaning box is a metal part, the cleaning box is detachably connected to the grille assembly, the ultrasonic assembly includes at least two ultrasonic vibration sheets, and at least two of the ultrasonic vibration sheets are connected to the cleaning box at intervals.

10. The filter screen cleaning module according to claim 8 or 9, wherein, the filter screen cleaning module further includes an insulating housing covering the outer surface of the metal part.

11. The filter screen cleaning module according to claim 2, wherein, at least two of the filter screens and the installation spaces are provided respectively, at least two of the installation spaces are arranged at intervals along the length direction of the grille assembly, the filter screens are arranged in one-to-one correspondence with the installation spaces, and at least two of the filter screens are respectively connected to the driving assembly.

12. The filter screen cleaning module according to claim 11, wherein, the grille assembly includes a bracket, the first grille is detachably connected to the bracket, at least two of the first grilles are provided, the bracket is provided with at least two installation positions corresponding to the first grille one by one, at least two of the installation positions are arranged at intervals along the length direction of the bracket, and the first grille is slidably connected to the installation positions.

13. The filter screen cleaning module according to claim 11, wherein, the grille assembly includes a bracket, two of the filter screens are provided, the cleaning box includes a first box body and a second box body connected to the bracket, the driving assembly includes a first roller, a second roller and a driver, the first roller is rotatably connected to the first box body and is connected to one of the filter screens; the second roller is rotatably connected to the second box body and is connected to the other filter screen; the driver is connected to the middle of the bracket and is respectively drivingly connected to the first roller and the second roller.

14. The filter screen cleaning module according to claim 13, wherein, the filter screen cleaning module further includes an insulating housing covering the outside of the cleaning box, the insulating housing includes a first housing part and a second housing part, the bracket is provided with a buckle and a chute arranged along the length direction of the cleaning box, opposite sides of the first housing part and the second housing part are respectively provided with ports, the first housing part and the second housing part slide along the chute, and the two ports are abutted and are respectively provided with slots clamped with the buckle.

15. The filter screen cleaning module according to claim 1, wherein, the cleaning box is provided with a fixing member, one end of the fixing member is connected to a side wall of the cleaning box, and the other end is connected to the grille assembly, so that the fixing member is fixed at the notch of the water tank.

16. An air conditioner indoor unit, wherein, including: a front panel provided with an air inlet; the filter screen cleaning module according to any one of claims 1 to 15, the filter screen cleaning module is detachably connected to the front panel and is located at the air inlet.

17. The air conditioner indoor unit according to claim 16, wherein, the air inlet is located at the top side of the front panel, the cleaning box is located at the front side of the front panel and is located at the lower side of the grille assembly, and the grille assembly covers the air inlet.

18. Air conditioner, characterized in that, it includes the air-conditioning indoor unit described in claim 16 or 17.

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