Filtering and cleaning module and laundry treatment apparatus

Abstract

The present disclosure relates to a filtering and cleaning module and a laundry treatment apparatus. The filtering and cleaning module comprises: a filter assembly, a spray assembly and a drive assembly. The filter assembly comprises a filter housing and a filter element, an air duct having an air inlet and an air outlet being formed in the filter housing, and the filter element being arranged in the air duct and being configured to filter gas passing through the air duct; the spray assembly comprises a water intake device, a spray pipe and a water distribution member, wherein the spray pipe is provided with a plurality of spray holes for spraying the filter element, and the water intake device is in communication with the spray pipe by means of the water distribution member; the water distribution member and the water intake device are engaged in a limiting manner in the direction of thickness and / or the circumferential direction of the water distribution member; and the drive assembly is connected to the spray pipe and is configured to drive the spray pipe to rotate. The filtering and cleaning module provided in the present disclosure improves the assembly precision of the water distribution member.

Description

Filtering and cleaning module and clothes treatment apparatus Cross-reference to Related Applications

[0001] The present disclosure claims priority to Chinese Patent Application No. 202422200736.5, filed on September 6, 2024, the entire contents of which are incorporated herein by reference. TECHNICAL FIELD

[0002] The present disclosure relates to the technical field of cleaning apparatuses, and in particular, to a filtering and cleaning module and clothes treatment apparatus. BACKGROUND

[0003] With the improvement of living standards, many household appliances with drying functions have appeared to dry objects, providing great convenience for people's lives. In household appliances using molecular sieves and other dehumidifiers with heating desorption performance as dehumidification components, dry air after passing through the objects to be dried carries away the moisture in the objects to be dried and becomes high-humidity air; the high-humidity air passes through the dehumidification components, is reabsorbed by the moisture, and becomes dry air again to be transported back to the objects to be dried for dehumidification; the heating components release the moisture in the dehumidification components, thereby forming a drying cycle.

[0004] It should be noted that the information disclosed in the above background section is only used to strengthen the understanding of the background of the present disclosure, and therefore can include information that does not constitute prior art known to those of ordinary skill in the art. SUMMARY

[0005] The purpose of the present disclosure is to provide a filtering and cleaning module and clothes treatment apparatus.

[0006] According to one aspect of the present disclosure, a filtering and cleaning module is provided, which comprises:

[0007] a filtering assembly comprising a filtering housing and a filter, the filtering housing forming an air duct with an air inlet and an air outlet, and the filter being arranged in the air duct for filtering the gas passing through the air duct;

[0008] a spraying assembly comprising a water inlet, a spraying pipe, and a water distribution member, the spraying pipe being provided with a plurality of spraying holes for spraying the filter, and the water inlet being in communication with the spraying pipe through the water distribution member; the water distribution member and the water inlet are limited and clamped in the thickness direction and / or the circumferential direction of the water distribution member; and

[0009] a driving assembly connected with the spraying pipe for driving the spraying pipe to rotate.

[0010] In an example embodiment of the present disclosure, the water inlet device is formed with a receiving space, and the water distribution member is arranged in the receiving space; the water inlet device is provided with a first protrusion in the receiving space, and the water distribution member is provided with a first recess on a surface thereof facing the water inlet device in a thickness direction, and the first protrusion is arranged in the first recess.

[0011] In an example embodiment of the present disclosure, the water inlet device is provided with a first limiting groove extending from a water inlet of the water inlet device to a water outlet of the water inlet device on a side wall of the receiving space, and the water distribution member is provided with a first protrusion arranged in the first limiting groove.

[0012] In an example embodiment of the present disclosure, the water distribution member includes a first water distribution piece and a second water distribution piece, the first water distribution piece and the second water distribution piece are arranged in a thickness direction, the water inlet device is communicated with the spray pipe through the first water distribution piece and the second water distribution piece, and the first water distribution piece is limited and clamped with the water inlet device in a thickness direction and / or a circumferential direction of the water distribution member.

[0013] In an example embodiment of the present disclosure, a first sealing ring is arranged between the first water distribution piece and the water inlet device, and the first sealing ring is used to seal a gap between a surface of the water inlet device facing a part of the first water distribution piece other than a water outlet hole of the first water distribution piece and the part of the first water distribution piece other than the water outlet hole.

[0014] In an example embodiment of the present disclosure, the first sealing ring is limited and clamped with the water inlet device in a thickness direction and / or a circumferential direction of the first sealing ring.

[0015] In an example embodiment of the present disclosure, the water inlet device is provided with at least one limiting structure for simultaneously limiting and clamping the first sealing ring and the first water distribution piece.

[0016] In an example embodiment of the present disclosure, the water inlet device is formed with a receiving space, and the first water distribution piece and the first sealing ring are arranged in the receiving space; the water inlet device is provided with a first protrusion in the receiving space, the first water distribution piece is provided with a first recess on a surface thereof facing the water inlet device in a thickness direction, and a first notch is arranged on a rim of the first sealing ring, and the first protrusion is arranged in the first recess and the first notch.

[0017] In an example embodiment of the present disclosure, the spray pipe is formed with a receiving space at a liquid inlet thereof, and the second water distribution piece is arranged in the receiving space; the spray pipe is provided with a second protrusion in the receiving space, and the second water distribution piece is provided with a second recess on a surface thereof facing the spray pipe in a thickness direction, and the second protrusion is arranged in the second recess.

[0018] In an exemplary embodiment of the present disclosure, a second sealing ring is arranged between the second water distribution piece and the spray pipe, and is used to seal the gap between the part of the second water distribution piece other than the water distribution hole and the surface of the spray pipe facing the part of the second water distribution piece other than the water distribution hole.

[0019] In an exemplary embodiment of the present disclosure, the edge of the second sealing ring is provided with a second notch, and the second boss is located in the second notch.

[0020] In an exemplary embodiment of the present disclosure, the spray pipe is provided with a first flow channel and a second flow channel arranged at intervals in the circumferential direction, and the spray holes of the first flow channel and the spray holes of the second flow channel are arranged in parallel and / or at intervals in the rotation direction.

[0021] The first water distribution piece is provided with a water outlet hole through which the cleaning liquid in the water inlet device flows out; the second water distribution piece is provided with a first water distribution hole and a second water distribution hole, the first water distribution hole is in communication with the first flow channel, and the second water distribution hole is in communication with the second flow channel; and the second water distribution piece is rotatable relative to the first water distribution piece.

[0022] In an exemplary embodiment of the present disclosure, in the circumferential direction of the spray pipe, the second boss is located between the liquid inlets of the adjacent first flow channel and second flow channel; the part of the accommodation space located between the liquid inlets of the first flow channel and the second flow channel is provided with a sealing recess, and the second sealing ring is formed with a sealing protrusion on the side facing the spray pipe in the thickness direction, and the sealing protrusion is located in the sealing recess.

[0023] In an exemplary embodiment of the present disclosure, the second sealing ring is provided with two annular sealing convex ribs on the side facing the second water distribution piece, and the two annular sealing convex ribs respectively extend into the first water distribution hole and the second water distribution hole of the second water distribution piece.

[0024] According to another aspect of the present disclosure, there is provided a laundry treatment apparatus, which comprises:

[0025] A laundry treatment tub;

[0026] A drying module;

[0027] The above-mentioned filter cleaning module, and the drying module is in communication with the laundry treatment tub through the air duct of the filter cleaning module.

[0028] In the assembly process, the water distribution member may shake and cause misalignment of the installation position. The filter cleaning module provided by the present disclosure avoids misalignment of the water distribution member during installation, thereby avoiding affecting the relative position of the rotating member and improving the reliability of the filter cleaning module.

[0029] It should be understood that the foregoing general description and the following detailed description are only exemplary and explanatory and are not restrictive of the present disclosure. BRIEF DESCRIPTION OF DRAWINGS

[0030] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and serve to explain the principles of the present disclosure. It is readily apparent to one skilled in the art that the following description in the drawings is merely exemplary of the present disclosure and that numerous other embodiments can be derived from the drawings without departing from the spirit and scope of the present disclosure.

[0031] FIG. 1 is a schematic view of a laundry treating apparatus according to an embodiment of the present disclosure.

[0032] FIG. 2 is a schematic view of a filter cleaning module according to an embodiment of the present disclosure.

[0033] FIG. 3 is a schematic view of the filter cleaning module according to an embodiment of the present disclosure.

[0034] FIG. 4 is a cross-sectional view of the filter cleaning module according to an embodiment of the present disclosure.

[0035] FIG. 5 is a schematic view of a driving motor according to an embodiment of the present disclosure.

[0036] FIG. 6 is a partial enlarged view of the filter cleaning module according to an embodiment of the present disclosure.

[0037] FIG. 7 is a schematic view of a housing according to an embodiment of the present disclosure.

[0038] FIG. 8 is a schematic view of a driving assembly and a spraying assembly according to an embodiment of the present disclosure.

[0039] FIG. 9 is an exploded view of the structure of FIG. 8.

[0040] FIG. 10 is a schematic view of a rotating shaft sealing ring according to an embodiment of the present disclosure.

[0041] FIG. 11 is a partial enlarged view of the housing according to an embodiment of the present disclosure.

[0042] FIG. 12 is a schematic view of a spraying pipe according to an embodiment of the present disclosure.

[0043] FIG. 13 is an exploded view of the filter cleaning module according to an embodiment of the present disclosure.

[0044] FIG. 14 is a schematic view of a water inlet device according to an embodiment of the present disclosure.

[0045] FIG. 15 is a schematic view of the lowest point of an overflow groove of a water inlet device and the lowest point of a rotating shaft according to an embodiment of the present disclosure.

[0046] FIG. 16 is a schematic view of a water inlet device according to an embodiment of the present disclosure.

[0047] FIG. 17 is a schematic view of a first water distribution piece and a second water distribution piece according to an embodiment of the present disclosure.

[0048] FIG. 18 is a schematic view of a first water distribution piece and a second water distribution piece according to an embodiment of the present disclosure.

[0049] FIG. 19 is a schematic view of a first water distribution piece arranged on a water inlet device according to an embodiment of the present disclosure.

[0050] FIG. 20 is a schematic view of a second water distribution piece arranged on a spray pipe according to an embodiment of the present disclosure.

[0051] FIG. 21 is a schematic view of a spray pipe according to an embodiment of the present disclosure.

[0052] FIG. 22 is a schematic view of a second water distribution piece according to an embodiment of the present disclosure.

[0053] FIG. 23 is an exploded view of a water inlet device, a first sealing ring, and a first water distribution piece according to an embodiment of the present disclosure.

[0054] FIG. 24 is an exploded view of a spray pipe, a second sealing ring, and a second water distribution piece according to an embodiment of the present disclosure.

[0055] FIG. 25 is a schematic view of a first sealing ring arranged on a water inlet device according to an embodiment of the present disclosure.

[0056] FIG. 26 is a schematic view of a first sealing ring according to an embodiment of the present disclosure.

[0057] FIG. 27 is a schematic view of a second sealing ring arranged on a spray pipe according to an embodiment of the present disclosure.

[0058] FIG. 28 is a schematic view of a spray pipe according to an embodiment of the present disclosure.

[0059] FIG. 29 is a schematic view of a second sealing ring according to an embodiment of the present disclosure.

[0060] FIG. 30 is a schematic view of a second sealing ring according to an embodiment of the present disclosure.

[0061] 10, filter cleaning module; 20, laundry treatment drum; 30, drying module; 110, filter assembly; 111, filter housing; 1111, outer shell; 1112, inner shell; 1113, support; 1114, sealing member; 1115, through hole; 1116, second annular protrusion; 112, filter piece; 113, air duct; 120, driving assembly; 121, motor housing; 122, rotating shaft; 123, motor sealing ring; 124, driving connecting piece; 125, transmission shaft; 130, spraying assembly; 131, spraying pipe; 1311, first sub-spraying pipe; 1312, second sub-spraying pipe; 1313, spraying hole; 1314, first flow channel; 1315, second flow channel; 1316, sealing recess; 1317, second boss; 1318, containing space; 132, water inlet device; 1321, water inlet; 1322, water storage space; 1323, overflow groove; 1324, water storage space; 1325, containing space; 1326, first boss; 1327, first limiting groove; 133, first water distribution piece; 1331, water outlet hole; 1332, first groove; 1333, first protrusion; 134, second water distribution piece; 1341, first water distribution hole; 1342, second water distribution hole; 1343, second groove; 141, rotating shaft sealing ring; 1411, first annular sealing protrusion; 142, first sealing ring; 1421, first water passing hole; 1422, first notch; 143, second sealing ring; 1431, second water passing hole; 1432, second notch; 1433, sealing protrusion; 1434, sealing protrusion. DETAILED DESCRIPTION

[0062] Example embodiments now will be described more fully hereinafter with reference to the accompanying drawings; however, the example embodiments can be implemented in many different forms and should not be construed as limited to the implementations set forth herein; rather, these implementations are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the example embodiments to those skilled in the art. Like reference numerals refer to like elements throughout the figures, and descriptions of the same or similar elements can be omitted from the descriptions of the figures.

[0063] Although relative terms such as "upper", "lower", etc. are used herein to describe one component's relative position to another component of the icon, these terms are used herein for convenience only and are not intended to limit the scope of the disclosure to only a particular orientation. It is to be understood that if the icon device is turned upside down, what is described as the "upper" component would become the "lower" component. When a structure is "on" another structure, it can mean that the structure is formed integrally with the other structure or that the structure is "directly" on the other structure, or that the structure is "indirectly" on the other structure with intervening structures therebetween.

[0064] The terms "one", "a", "an", "the", and "said" are used to indicate the presence of one or more elements / components / etc.; the terms "include" and "has" are used to indicate an open-ended inclusion of the elements / components / etc. listed after them and that additional elements / components / etc. can be present in addition to those listed; the terms "first", "second", and "third", etc. are used only as labels, not as a limitation on the number of objects.

[0065] The existing drying module usually needs to pass through the filter cleaning module to transmit the humid gas that needs to be dried, so the reliability requirement of the filter cleaning module is higher and higher.

[0066] In the embodiments of the present disclosure, as shown in FIGS. 1-3, the clothes treatment device 100 includes a filter cleaning module 10, a clothes treatment drum 20, and a drying module 30. The clothes treatment drum 20 is provided with an air inlet and an air outlet. The air inlet of the drying module 30 communicates with the air outlet of the clothes treatment drum 20 through the filter cleaning module 10. The air outlet of the drying module 30 communicates with the air inlet of the clothes treatment drum 20, so that the gas in the clothes treatment drum 20 is continuously dehydrated by the drying module 30, so that a circulating air flow is formed between the clothes treatment drum 20 and the drying module 30, thereby achieving the purpose of drying the clothes in the clothes treatment drum 20.

[0067] Generally, a part of lint and other impurities shed by the clothes in the wet air in the clothes treatment drum 20 will be carried. If these lint and other impurities are not filtered, the wet air will carry these impurities into the drying module 30 and adhere to the drying module 30, thereby causing the drying module 30 to be blocked, and even the lint adhering to the drying module 30 may be ignited after being heated, causing damage to the drying module 30.

[0068] Therefore, when the humidity in the clothes treatment drum 20 enters the drying module 30 through the filter cleaning module 10, the humidity usually filters the lint and other impurities in the filter 112 in the filter cleaning module 10.

[0069] However, after the clothes treatment device 100 is used for a long time, the lint and other impurities adhering to the filter 112 provided in the air duct 113 of the filter cleaning module 10 will increase. If the filter 112 is not cleaned for a long time, the lint and other impurities adhering to it will block the air duct 113 in the filter cleaning module 10, hinder the circulation of the gas, and thus affect the drying efficiency of the clothes treatment device 100.

[0070] To this end, as shown in Figs. 2-5 in combination with Fig. 12, the filter cleaning module 10 provided by the present disclosure includes a filter assembly 110, a driving assembly 120, and a spraying assembly 130. The filter assembly 110 includes a filter housing 111 and a filter element 112, the filter housing 111 is formed with an air duct 113 having an air inlet and an air outlet, and the filter element 112 is arranged in the air duct 113 and used to filter the gas passing through the air duct 113. The driving assembly 120 includes a driving motor assembly and a motor housing 121, the driving motor assembly is accommodated in the motor housing 121, and a rotating shaft 122 of the driving motor assembly extends out through a through hole in the motor housing 121. The spraying assembly 130 includes a spraying pipe 131 and a water inlet 132, the spraying pipe 131 is provided with a plurality of spraying holes 1313 for spraying the filter element 112, and the water inlet 132 is in communication with the plurality of spraying holes 1313 in the spraying pipe 131. One end of the spraying pipe 131 is connected with the rotating shaft 122 of the driving motor assembly, so as to rotate under the driving of the rotating shaft 122 of the driving motor assembly. The water inlet 132 is located between the spraying pipe 131 and the motor housing 121, and the water inlet 132 is fixedly arranged relative to the motor housing 121. The water inlet 132 is used to introduce water and / or cleaning liquid into the spraying pipe 131 from the outside.

[0071] The filter housing 111 forms a moisture circulation passage between the laundry treatment drum 20 and the drying module 30, and the filter element 112 arranged therein can filter the lint and other impurities in the moisture passing through the air duct 113 in the filter housing 111. When the filter element 112 has too much lint and other impurities, or when it is necessary to clean the filter element 112 regularly, the spraying assembly 130 arranged can be used to flush the filter element 112, so that the cleaning liquid sprayed through the spraying holes 1313 of the spraying pipe 131 can remove the impurities attached to the filter element 112, thereby ensuring the gas circulation in the air duct 113 of the filter cleaning module 10 and avoiding the influence of the lint and other impurities in the filtered moisture on the drying efficiency of the laundry treatment equipment 100.

[0072] However, in the process of rotating the spraying pipe 131 to spray the filter element 112 by the driving motor assembly in the driving assembly 120, the cleaning liquid may reach the driving motor of the driving motor assembly along the rotating shaft 122, which causes safety problems of the driving motor.

[0073] To this end, as shown in FIG. 5, the driving assembly 120 provided by the present disclosure further comprises a motor sealing ring 123 arranged at the through hole of the motor housing 121 to seal the gap between the rotating shaft 122 and the motor housing 121 at the through hole. By arranging the motor sealing ring 123, the sealing effect between the rotating shaft 122 and the motor housing 121 of the driving motor assembly is improved. When the cleaning liquid reaches the connection between the rotating shaft 122 and the motor housing 121 of the driving motor assembly along the rotating shaft 122, the motor sealing ring 123 can effectively prevent the cleaning liquid from entering the interior of the motor housing 121 from the gap between the rotating shaft 122 and the motor housing 121, thereby improving the safety and service life of the driving motor assembly.

[0074] In some embodiments, the motor sealing ring 123 can be a rubber sealing ring, and the edge of the motor sealing ring 123 can be clamped on the edge of the through hole of the motor housing 121, thereby limiting the motor sealing ring 123 in the axial direction of the rotating shaft 122, improving the stability of the motor sealing ring 123, and further improving the sealing effect of the gap between the rotating shaft 122 and the motor housing 121. In addition, by the deformation of the rubber sealing ring itself, the fitting effect of the motor sealing ring 123 and the surface of the rotating shaft 122 can be further improved, and the sealing effect can be further improved.

[0075] In some embodiments, the motor sealing ring 123 is sleeved on the rotating shaft 122. Specifically, the motor sealing ring 123 has a through hole, and the rotating shaft 122 passes through the through hole of the motor sealing ring 123 and can be in interference fit with the through hole of the motor sealing ring 123, so that the motor sealing ring 123 and the surface of the rotating shaft 122 are tightly fitted together, and the sealing effect is further improved. Further, the motor sealing ring 123 can be a rubber sealing ring, and by the deformation of the rubber sealing ring itself, the fitting effect of the motor sealing ring 123 and the surface of the rotating shaft 122 can be further improved, and the sealing effect can be further improved.

[0076] In some embodiments, as shown in FIGS. 6-9, the filter housing 111 is provided with a through hole 1115, and the rotating shaft 122 is connected with the spray pipe 131 located in the air duct 113 through the through hole 1115, that is, the driving assembly 120 can be arranged such that only one end of the rotating shaft 122 passes through the filter housing 111 to extend into the air duct 113 (for example, the upper part of the air duct 113), and the motor housing 121 and the driving motor assembly are located outside the filter housing 111.

[0077] In some embodiments, the shaft seal ring 141 is sleeved on the rotating shaft 122, and is used to seal the gap between the rotating shaft 122 and the filter housing 111 at the through hole 1115, and the gap between the facing surfaces of the motor housing 121 and the filter housing 111 at the through hole 1115. By arranging the shaft seal ring 141, a seal is formed between the rotating shaft 122 and the filter housing 111, so that the cleaning liquid can be effectively prevented from reaching the side where the motor housing 121 is located from the gap between the rotating shaft 122 and the filter housing 111.

[0078] In some embodiments, as shown in FIG. 10, the shaft seal ring 141 is provided with at least one first annular sealing protruding rib 1411 on the surface facing the motor housing 121, and the at least one first annular sealing protruding rib 1411 is arranged around the rotating shaft 122. When the shaft seal ring 141 is tightly attached to the motor housing 121, the first annular sealing protruding rib 1411 can further improve the attachment of the shaft seal ring 141 to the motor housing 121, thereby improving the sealing effect between the shaft seal ring 141 and the motor housing 121. In order to arrange the first annular sealing protruding rib 1411 on the shaft seal ring 141, a mold can be designed to form the shaft seal ring 141 with the first annular sealing protruding rib 1411 by the same process when the shaft seal ring 141 is formed, thereby reducing the production cost. The shaft seal ring 141 can be provided with one, two or more first annular sealing protruding ribs 1411. When the shaft seal ring 141 is provided with a plurality of first annular sealing protruding ribs 1411, the plurality of first annular sealing protruding ribs 1411 can have different diameters and be concentrically distributed.

[0079] In some embodiments, the motor housing 121 can also be provided with at least one first annular protrusion on the surface facing the shaft seal ring 141, and the at least one first annular protrusion is arranged around the rotating shaft 122. When the motor housing 121 is tightly attached to the shaft seal ring 141, the first annular protrusion can further improve the attachment of the motor housing 121 to the shaft seal ring 141, thereby improving the sealing effect between the motor housing 121 and the shaft seal ring 141. The motor housing 121 can be provided with one, two or more first annular protrusions. When the motor housing 121 is provided with a plurality of first annular protrusions, the plurality of first annular protrusions can have different diameters and be concentrically distributed.

[0080] In some embodiments, the at least one first annular sealing protrusion 1411 can be arranged on the shaft sealing ring 141 only, or the at least one first annular protrusion can be arranged on the motor housing 121 only, or both the at least one first annular sealing protrusion 1411 on the shaft sealing ring 141 and the at least one first annular protrusion on the motor housing 121. When both the at least one first annular sealing protrusion 1411 on the shaft sealing ring 141 and the at least one first annular protrusion on the motor housing 121 are arranged, the first annular sealing protrusion 1411 and the first annular protrusion are arranged in a radial direction of the shaft 122 in a staggered manner to avoid overlapping of positions and affecting the sealing effect. For example, the first annular sealing protrusion 1411 and the first annular protrusion are both one, and are arranged adjacent to each other. For another example, the first annular sealing protrusion 1411 and the first annular protrusion are both multiple, and one first annular protrusion is arranged between any two adjacent first annular sealing protrusions 1411, and one first annular sealing protrusion 1411 is arranged between any two adjacent first annular protrusions.

[0081] In some embodiments, the surface of the shaft sealing ring 141 facing the filter housing 111 is provided with at least one second annular sealing protrusion, and the at least one second annular sealing protrusion is arranged around the shaft 122. When the shaft sealing ring 141 is tightly attached to the filter housing 111, the second annular sealing protrusion can further improve the attachment of the shaft sealing ring 141 to the filter housing 111, thereby improving the sealing effect between the shaft sealing ring 141 and the filter housing 111. In order to arrange the second annular sealing protrusion on the shaft sealing ring 141, a mold can be designed to form the shaft sealing ring 141 with the second annular sealing protrusion by the same process when the shaft sealing ring 141 is formed, thereby reducing the production cost. The shaft sealing ring 141 can be provided with one, two or more second annular sealing protrusions. When the shaft sealing ring 141 is provided with multiple second annular sealing protrusions, the multiple second annular sealing protrusions can have different diameters and be concentrically distributed.

[0082] In some embodiments, as shown in FIG. 11, the surface of the filter housing 111 facing the shaft sealing ring 141 can also be provided with at least one second annular protrusion 1116, and the at least one second annular protrusion 1116 is arranged around the shaft 122. When the filter housing 111 is tightly attached to the shaft sealing ring 141, the second annular protrusion 1116 can further improve the attachment of the filter housing 111 to the shaft sealing ring 141, thereby improving the sealing effect between the filter housing 111 and the shaft sealing ring 141. The filter housing 111 can be provided with one, two or more second annular protrusions 1116. When the filter housing 111 is provided with multiple second annular protrusions 1116, the multiple second annular protrusions 1116 can have different diameters and be concentrically distributed.

[0083] In some embodiments, the at least one second annular sealing protrusion can be arranged on the shaft sealing ring 141 only, the at least one second annular protrusion 1116 can be arranged on the filter housing 111 only, or the at least one second annular sealing protrusion can be arranged on the shaft sealing ring 141 and the at least one second annular protrusion 1116 can be arranged on the filter housing 111 simultaneously. When the at least one second annular sealing protrusion is arranged on the shaft sealing ring 141 and the at least one second annular protrusion 1116 is arranged on the filter housing 111 simultaneously, the second annular sealing protrusion and the second annular protrusion 1116 are arranged in a staggered manner in the radial direction of the shaft 122 to avoid overlapping and affecting the sealing effect. For example, the second annular sealing protrusion and the second annular protrusion 1116 are both one, and the two are arranged adjacent to each other. For another example, the second annular sealing protrusion and the second annular protrusion 1116 are both multiple, one second annular protrusion 1116 is arranged between any two adjacent second annular sealing protrusions, and one second annular sealing protrusion is arranged between any two adjacent second annular protrusions 1116.

[0084] In some embodiments, as shown in FIG. 11, a sink is arranged around the through hole 1115 on the filter housing 111, and the portion of the shaft sealing ring 141 between the facing surfaces of the motor housing 121 and the filter housing 111 at the through hole 1115 is located in the sink. By assembling the shaft sealing ring 141 in the sink on the filter housing 111, the shaft sealing ring 141 is limited in the radial direction of the shaft 122, which can improve the fit between the shaft sealing ring 141 and the filter housing 111 and the motor housing 121, thereby improving the waterproof performance.

[0085] In some embodiments, when the second annular protrusion 1116 is arranged on the filter housing 111, the second annular protrusion 1116 is located in the sink. The depth of the sink in the axial direction of the shaft 122 is less than the thickness of the shaft sealing ring 141, so that the shaft sealing ring 141 is tightly fitted between the filter housing 111 and the motor housing 121. The size and shape of the sink match those of the shaft sealing ring 141 to form assembly positioning of the shaft sealing ring 141, while avoiding extrusion of the shaft sealing ring 141 in a free state.

[0086] In some embodiments, as shown in FIG. 12, the spray pipe 131 is provided with a first flow channel 1314 and a second flow channel 1315 arranged at intervals in the circumferential direction of the shaft 122, and a plurality of spray holes 1313, part of which communicates with the first flow channel 1314 and the rest of which communicates with the second flow channel 1315. The spray holes 1313 communicating with the first flow channel 1314 and the spray holes 1313 communicating with the second flow channel 1315 are arranged in parallel and / or at intervals in the rotation direction of the spray pipe 131.

[0087] Specifically, the first flow channel 1314 extends along the axial direction of the spray pipe 131, and the second flow channel 1315 extends along the axial direction of the spray pipe 131. The first flow channel 1314 and the second flow channel 1315 are arranged at intervals in the circumferential direction of the spray pipe 131. The plurality of spray holes 1313 of the spray pipe 131 that communicate with the first flow channel 1314 are arranged at intervals in the axial direction of the spray pipe 131, and these spray holes 1313 are located at the same position in the circumferential direction of the spray pipe 131. The plurality of spray holes 1313 of the spray pipe 131 that communicate with the second flow channel 1315 are arranged at intervals in the axial direction of the spray pipe 131, and these spray holes 1313 are located at the same position in the circumferential direction of the spray pipe 131.

[0088] In some embodiments, the plurality of spray holes 1313 of the spray pipe 131 that communicate with the first flow channel 1314 and the plurality of spray holes 1313 that communicate with the second flow channel 1315 are arranged at intervals in the axial direction of the spray pipe 131, respectively, forming two rows of spray holes 1313. In the height direction of the filter element 112, the two rows of spray holes 1313 can substantially cover the entire height of the filter element 112, so that through the rotation of the spray pipe 131, the plurality of spray holes 1313 that communicate with the first flow channel 1314 and the plurality of spray holes 1313 that communicate with the second flow channel 1315 can clean the filter element 112 at various positions in the height direction and the width direction.

[0089] In some embodiments, as shown in FIG. 12, the spray pipe 131 includes a first sub-spray pipe 1311 and a second sub-spray pipe 1312 connected together in the axial direction thereof. The first sub-spray pipe 1311 and the second sub-spray pipe 1312 can be detachably connected together by bolts after being butted. The spray holes 1313 on the first sub-spray pipe 1311 and the spray holes 1313 on the second sub-spray pipe 1312 can be arranged in alignment, i.e., two rows of spray holes 1313 can be arranged on the first sub-spray pipe 1311 and the second sub-spray pipe 1312, respectively. For example, the rows of spray holes 1313 on the first sub-spray pipe 1311 and the rows of spray holes 1313 on the second sub-spray pipe 1312 are arranged opposite to each other.

[0090] In some embodiments, as shown in FIG. 13, the filter assembly 110 further includes a support 1113, and the bottom of the second sub-spray pipe 1312 can be supported on the support 1113 and can rotate relative to the support 1113, thereby forming an assembly of the two ends of the spray pipe 131 in the axial direction thereof, and improving the stability during rotation.

[0091] In some embodiments, as shown in FIG. 13, the filter housing 111 comprises an outer shell 1111 and an inner shell 1112, the outer shell 1111 and the inner shell 1112 are buckled together to form the filter housing 111. The inner shell 1112 is arranged in the outer shell 1111, the inner shell 1112 is formed with an air duct 113, the inner shell 1112 is provided with a support 1113, and the filter element 112 and the spray pipe 131 are assembled on the support 1113 of the inner shell 1112. After the moisture enters the air duct 113 in the inner shell 1112, it passes through the filter element 112 and enters the side provided with the spray pipe 131, and then enters the drying module 30.

[0092] When assembling the driving assembly 120 and the spray assembly 130, the driving assembly 120 can be fixed on the outer shell 1111, and the outer shell 1111 is provided with a through hole 1115 for the rotating shaft 122 to pass through; the water inlet 132 of the spray assembly 130 can be arranged on the side of the inner shell 1112 away from the outer shell 1111, so as to be located in the air duct 113; the water inlet 132 can be fixedly connected with the inner shell 1112, and the parts of the outer shell 1111 and the inner shell 1112 for fixing the driving assembly 120 and the spray assembly 130 are clamped between the water inlet 132 and the motor housing 121.

[0093] In some embodiments, as shown in FIG. 13, the filter housing 111 is further provided with a sealing element 1114, which forms the sealing between the filter housing 111 and the target element during assembly, so as to avoid air leakage of the air duct 113.

[0094] In some embodiments, as shown in FIG. 14, the water inlet 132 is formed with a water storage space 1322 on the side (for example, the lower side of the filter housing 111) of the rotating shaft 122 close to the filter housing 111, and the water storage space 1322 is in communication with the air duct 113 outside the water inlet 132 through an overflow channel on the water inlet 132. By arranging the water storage space 1322 on the water inlet 132, when the rotating shaft sealing ring 141 or the first sealing ring 142 fails due to failure or life problem after long-term use of the filter cleaning module 10, the cleaning liquid on the water inlet 132 close to the inner shell 1112 along the transmission shaft 125 can be stored in the water storage space 1322, so as to avoid the spread of the cleaning liquid upward along the driving connecting piece 124, and further avoid the entry of the cleaning liquid into the driving motor assembly.

[0095] In addition, in order to ensure sufficient connection stability between the water inlet device 132 and the inner shell 1112, the entire periphery of the water inlet device 132 is in close abutment with the inner shell 1112, so that the cleaning liquid in the water storage space 1322 cannot flow out of the water inlet device 132 smoothly. By means of the overflow channel provided on the water inlet device 132, the water storage space 1322 can be in communication with the air duct 113 outside the water inlet device 132, so that the cleaning liquid accumulated in the water storage space 1322 can flow out in time, thereby avoiding the situation that, after the water storage space 1322 is filled with cleaning liquid, the cleaning liquid continues to spread upward along the driving connecting member 124.

[0096] As shown in FIG. 14, the water inlet device 132 is provided with an overflow groove 1323 near the edge of the inner shell 1112, which serves as an overflow channel. When there is a large amount of cleaning liquid in the water storage space 1322, the cleaning liquid can flow out of the water storage space 1322 through the overflow groove 1323. Of course, the overflow channel can also be a through hole provided on the water inlet device 132. When a plurality of overflow channels are provided, the plurality of overflow channels can include the overflow groove 1323 provided on the edge of the water inlet device 132 near the inner shell 1112, can include the through hole provided on the water inlet device 132, or can include both the overflow groove 1323 and the through hole, and the present disclosure does not limit this.

[0097] In some embodiments, as shown in FIG. 15, in the axial direction of the rotating shaft 122, the overflow groove 1323 has a height difference h between the bottom of the motor shell 121 and the end of the rotating shaft 122 (for example, the lower end of the rotating shaft 122) toward the water inlet device 132, that is, the lowest point of the overflow channel is lower than the lowest point of the rotating shaft 122 on the side thereof toward the water inlet device. After the water storage space 1322 is filled with cleaning liquid and the cleaning liquid flows out of the water storage space 1322 through the overflow channel, the liquid level of the cleaning liquid in the water storage space 1322 is lower than the lower end of the rotating shaft 122 (that is, there is a gap therebetween), so that the cleaning liquid cannot soak into the rotating shaft 122, thereby preventing the cleaning liquid from spreading along the rotating shaft 122 to the driving motor assembly, and ensuring the safety of the driving assembly 120.

[0098] In some embodiments, as shown in FIG. 16, the water inlet device 132 is formed with a water storage space 1324 on the side thereof near the spray pipe 131 in the axial direction of the rotating shaft 122. The cleaning liquid entering through the water inlet 1321 enters the water storage space 1324, and then enters the spray pipe 131 after being buffered in the water storage space 1324. By means of the water storage space 1324, a buffering area of the cleaning liquid is formed in the water inlet device 132, so that the cleaning liquid entering the spray pipe 131 can contain as few air bubbles as possible, thereby improving the cleaning effect of the filter element 112 by the spray holes 1313.

[0099] In some embodiments, the spraying assembly 130 further comprises a water distribution member, and the water inlet 132 is in communication with the spraying pipe 131 through the water distribution member. The water distribution member is limited and clamped with the water inlet 132 along the thickness direction and / or the circumferential direction of the water distribution member. In the assembly process, the water distribution member may shake and cause misalignment of the installation position. By limiting and clamping the water distribution member with the water inlet 132 along the thickness direction and / or the circumferential direction, the misalignment of the water distribution member during installation can be effectively improved, thereby avoiding affecting the relative position of the rotating member and improving the reliability of the filter and cleaning module 10.

[0100] As shown in FIG. 16, the water inlet 132 is formed with an accommodation space 1325, and the water distribution member is arranged in the accommodation space 1325. The water inlet 132 is provided with a first boss 1326 in the accommodation space 1325, and the water distribution member is provided with a first groove on the surface thereof along the thickness direction and towards the water inlet 132. The first boss 1326 is installed in the first groove. By arranging the first boss 1326, the first boss 1326 is aligned with and arranged in the first groove on the water distribution member during assembly of the water distribution member, so that the assembly of the water distribution member in the thickness direction can be limited by the first boss 1326.

[0101] The water inlet 132 is provided with a first limiting groove 1327 on the side wall of the accommodation space 1325, extending from the water inlet 132 to the water outlet 1328, and the edge of the water distribution member is provided with a first protrusion, which is installed in the first limiting groove 1327. By cooperating the first protrusion and the first limiting groove 1327, a guide during assembly of the water distribution member is formed, which ensures that the installation position of the water distribution member is not deviated, and at the same time, a limiting of the water distribution member relative to the water inlet 132 in the circumferential direction is formed.

[0102] In some embodiments, as shown in FIGS. 17-20, the water distribution member comprises a first water distribution piece 133 and a second water distribution piece 134 stacked together along the axial direction of the rotating shaft 122. The first water distribution piece 133 is provided with a water outlet hole 1331 and is fixed on the water inlet 132. The cleaning liquid in the water inlet 132 flows out through the water outlet hole 1331. The second water distribution piece 134 is provided with a first water distribution hole 1341 and a second water distribution hole 1342, and is fixed on the liquid inlet 1319 of the spraying pipe 131. The first water distribution hole 1341 is in communication with the first flow channel 1314, and the second water distribution hole 1342 is in communication with the second flow channel 1315.

[0103] The first water-dividing piece 133 is fixedly arranged on the water inlet device 132 and does not rotate with the rotating shaft 122, i.e., is fixedly arranged relative to the rotating shaft 122. The second water-dividing piece 134 is fixedly arranged on the spraying pipe 131 and rotates with the spraying pipe 131. Therefore, the second water-dividing piece 134 can rotate relative to the first water-dividing piece 133, and in the rotating process, one of the first water holes 1341 and the second water holes 1342 on the second water-dividing piece 134 has an overlapping part with the water outlet hole 1331, i.e., one of the first water holes 1341 and the second water holes 1342 is in communication with the water outlet hole 1331, and the other is blocked from the water outlet hole 1331 (i.e., not in communication).

[0104] Therefore, in the rotating process of the spraying pipe 131, the first flow channel 1314 and the second flow channel 1315 take turns to be filled with water, i.e., the spraying holes 1313 in communication with the first flow channel 1314 and the spraying holes 1313 in communication with the second flow channel 1315 take turns to spray liquid. By making the spraying holes 1313 in communication with the first flow channel 1314 and the spraying holes 1313 in communication with the second flow channel 1315 take turns to spray liquid, when the spraying holes 1313 in communication with the first flow channel 1314 correspond to the filter element 112, the spraying holes 1313 in communication with the first flow channel 1314 can spray and clean the filter element 112, and at this time, the second flow channel 1315 is not filled with cleaning liquid, i.e., the spraying holes 1313 in communication with the second flow channel 1315 do not perform the spraying operation on the filter element 112, thereby saving the cleaning liquid; when the spraying holes 1313 in communication with the second flow channel 1315 correspond to the filter element 112, the spraying holes 1313 in communication with the second flow channel 1315 can spray and clean the filter element 112, and at this time, the first flow channel 1314 is not filled with cleaning liquid, i.e., the spraying holes 1313 in communication with the first flow channel 1314 do not perform the spraying operation on the filter element 112, so that there is enough spraying water in a single spraying, thereby improving the cleaning effect.

[0105] In some embodiments, as shown in FIG. 19, the first water-dividing piece 133 and the water inlet device 132 are limitedly clamped in the thickness direction and / or the circumferential direction of the first water-dividing piece 133. In the assembly process, the first water-dividing piece 133 may shake and be misaligned in the installation position; by simultaneously limiting and clamping the first water-dividing piece 133 and the water inlet device 132 in the thickness direction and / or the circumferential direction, the misalignment of the first water-dividing piece 133 in the installation process is avoided, thereby avoiding affecting the relative position of the rotating device and improving the reliability of the filter cleaning module 10.

[0106] The first water distribution piece 133 is arranged in the accommodating space 1325. The water inlet device 132 is provided with a first boss 1326 in the accommodating space 1325, and the first water distribution piece 133 is provided with a first groove 1332 on the surface thereof in the thickness direction and faces the water inlet device 132. The first boss 1326 is matched with the first groove 1332. By arranging the first boss 1326, when the first water distribution piece 133 is assembled, the first boss 1326 is aligned with and arranged in the first groove 1332 on the first water distribution piece 133, so that the first boss 1326 can limit the assembly of the first water distribution piece 133 in the thickness direction. When the bottom of the first groove 1332 abuts against the side of the first boss 1326 facing the bottom of the first groove 1332, the first water distribution piece 133 is positioned and assembled. The number of the first boss 1326 and the first groove 1332 can be matched, for example, two, three or more first bosses 1326 and first grooves 1332 are arranged one by one.

[0107] The size of the first boss 1326 and the first groove 1332 can be matched, that is, when the first boss 1326 is arranged in the first groove 1332, the gap between the first boss 1326 and the sidewall of the first groove 1332 can be relatively small, for example, less than 2 mm, so that the first boss 1326 and the first groove 1332 can limit the assembly of the first water distribution piece 133 in the axial direction, further improve the limiting effect, and improve the assembly accuracy.

[0108] The water inlet device 132 is provided with a first limiting groove 1327 extending from the inlet of the accommodating space 1325 to the bottom on the sidewall of the accommodating space 1325, and the edge of the first water distribution piece 133 is provided with a first protrusion 1333 which can be matched with the first limiting groove 1327. When the first water distribution piece 133 is assembled on the water inlet device 132, the first protrusion 1333 and the first limiting groove 1327 are matched to guide the first water distribution piece 133 during assembly, the elements below the first water distribution piece 133 abut against the first water distribution piece 133 during installation, the first protrusion 1333 moves along the first limiting groove 1327, ensures that the installation position of the first water distribution piece 133 is not deviated, and the first water distribution piece 133 can be arranged in the accommodating space 1325 of the water inlet device 132 along the first limiting groove 1327, so as to complete the installation. In addition, the first protrusion 1333 and the first limiting groove 1327 limit the first water distribution piece 133 relative to the water inlet device 132 in the circumferential direction. The number of the first protrusion 1333 and the first limiting groove 1327 can be matched, for example, two, three or more first protrusions 1333 and first limiting grooves 1327 are arranged one by one.

[0109] In some embodiments, the second water diversion piece 134 is clamped along the thickness direction and / or the circumferential direction of the second water diversion piece 134 with the spray pipe 131. By clamping the second water diversion piece 134 with the spray pipe 131 along the thickness direction and / or the circumferential direction at the same time, the assembly accuracy of the second water diversion piece 134 in the thickness direction and / or the circumferential direction can be improved.

[0110] As shown in FIGS. 20-22, the spray pipe 131 is provided with a receiving space 1318 at the liquid inlet 1319, and the second water diversion piece 134 is arranged in the receiving space 1318. The spray pipe 131 is provided with a second boss 1317 in the receiving space 1318, and the second water diversion piece 134 is provided with a second groove 1343 on the surface thereof facing the spray pipe 131 along the thickness direction, and the second boss 1317 can be installed in the second groove 1343. By arranging the second boss 1317, when the second water diversion piece 134 is assembled, the second boss 1317 is aligned with and arranged in the second groove 1343 on the second water diversion piece 134, so that the assembly of the second water diversion piece 134 in the thickness direction can be limited by the second boss 1317. When the bottom of the second groove 1343 abuts against the side of the second boss 1317 facing the bottom of the second groove 1343, the second water diversion piece 134 is installed and positioned. The number of the second boss 1317 and the second groove 1343 can be matched, for example, two, three or more second bosses 1317 and second grooves 1343 are arranged one by one.

[0111] The size of the second boss 1317 and the second groove 1343 can be matched, that is, when the second boss 1317 is installed in the second groove 1343, the gap between the second boss 1317 and the sidewall of the second groove 1343 can be relatively small, for example, less than 2 mm, so that the assembly of the second water diversion piece 134 in the axial direction can be limited by the cooperation of the second boss 1317 and the second groove 1343, further improving the limiting effect and thus improving the assembly accuracy.

[0112] In some embodiments, the driving assembly 120 further comprises a driving connecting piece 124 and a transmission shaft 125. The driving connecting piece 124 is provided with a first mounting hole and a second mounting hole arranged separately, and the rotating shaft 122 extends into the first mounting hole to be connected with the driving connecting piece 124. The water inlet device 132 is provided with a through hole, and the transmission shaft 125 is arranged in the through hole. One end of the transmission shaft 125 extends out of the through hole and into the second mounting hole to be connected with the driving connecting piece 124, and the other end extends out of the through hole to be connected with the spray assembly 130.

[0113] However, since the first water diversion piece 133, the second water diversion piece 134 and the water inlet device 132 are sleeved on the transmission shaft 125, during the process that the transmission shaft 125 drives the spray pipe 131 to rotate to spray the filter element 112, the cleaning liquid may flow along the transmission shaft 125 to the driving motor, which causes a safety problem of the driving motor.

[0114] To this end, in some embodiments, as shown in FIG. 23, a first sealing ring 142 is arranged between the first water diversion piece 133 and the water inlet device 132, and the first sealing ring 142 is used to seal the gap between the part of the first water diversion piece 133 other than the water outlet hole 1331 and the surface of the water inlet device 132 facing the part of the first water diversion piece 133 other than the water outlet hole 1331. The first sealing ring 142 is provided with a first water passing hole 1421 corresponding to the water outlet hole 1331, so as to guide the water outlet hole 1331 and the water outlet 1328 of the water inlet device 132. By arranging the first sealing ring 142, the gap between the part of the first water diversion piece 133 other than the water outlet hole 1331 and the surface of the water inlet device 132 facing the part of the first water diversion piece 133 other than the water outlet hole 1331 is sealed, that is, the first sealing ring 142 has a part surrounding the transmission shaft 125, and the first sealing ring 142 can be regarded as being sleeved on the transmission shaft 125. The gap between the first water diversion piece 133 and the water inlet device 132 communicating with the transmission shaft 125 is blocked by the part of the shaft sealing ring 141 sleeved on the transmission shaft 125, so that the gap between the first water diversion piece 133 and the water inlet device 132 communicating with the transmission shaft 125 is sealed. Therefore, when the cleaning liquid enters the water outlet hole 1331 through the water outlet 1328 of the water inlet device 132, the cleaning liquid can be prevented from entering the transmission shaft 125.

[0115] In some embodiments, as shown in FIG. 24, a second sealing ring 143 is arranged between the second water diversion piece 134 and the spray pipe 131, and is used to seal the gap between the surface of the spray pipe 131 facing the part of the second water diversion piece 134 other than the first water diversion hole 1341 and the second water diversion hole 1342 and the part of the second water diversion piece 134 other than the first water diversion hole 1341 and the second water diversion hole 1342. The second sealing ring 143 is provided with a second water passing hole 1431 corresponding to the first water diversion hole 1341 and the second water diversion hole 1342, so as to guide the first water diversion hole 1341 to the first flow channel 1314 and the second water diversion hole 1342 to the second flow channel 1315. By arranging the second sealing ring 143, the gap between the surface of the spray pipe 131 facing the part of the second water diversion piece 134 other than the first water diversion hole 1341 and the second water diversion hole 1342 and the part of the second water diversion piece 134 other than the first water diversion hole 1341 and the second water diversion hole 1342 is sealed, that is, the second sealing ring 143 has a part surrounding the transmission shaft 125, that is, the second sealing ring 143 is sleeved on the transmission shaft 125, and the gap between the second water diversion piece 134 and the spray pipe 131 communicating with the transmission shaft 125 is blocked by the part of the second sealing ring 143 sleeved on the transmission shaft 125, thereby forming a seal for the gap between the second water diversion piece 134 and the spray pipe 131 communicating with the transmission shaft 125. Therefore, when the cleaning liquid enters the first flow channel 1314 through the first water diversion hole 1341 or enters the second flow channel 1315 through the second water diversion hole 1342, the cleaning liquid can be prevented from entering the transmission shaft 125.

[0116] By arranging the motor sealing ring 123, the shaft sealing ring 141, the first sealing ring 142 and the second sealing ring 143, four blocking pieces are arranged on the path of the cleaning liquid along the transmission shaft 122 and the transmission shaft 125 to the driving motor, which can completely improve this phenomenon and improve the safety and service life of the driving motor assembly.

[0117] In some embodiments, as shown in FIG. 25, when the first sealing ring 142 is arranged between the first water diversion piece 133 and the water inlet device 132, the first sealing ring 142 and the water inlet device 132 are limited and clamped in the thickness direction and / or the circumferential direction of the first sealing ring 142. By simultaneously limiting and clamping the first sealing ring 142 and the water inlet device 132 in the thickness direction and / or the circumferential direction, the assembly precision of the first sealing ring 142 in the thickness direction and / or the circumferential direction can be improved.

[0118] The water inlet device 132 is provided with at least one limiting structure for simultaneously limiting and clamping the first sealing ring 142 and the first water distribution piece 133. The simultaneous limiting of the first sealing ring 142 and the first water distribution piece 133 by the same limiting structure can simultaneously form the relative positions between the first sealing ring 142, the first water distribution piece 133 and the water inlet device 132, thereby improving the assembly precision of the first sealing ring 142 and the first water distribution piece 133.

[0119] As shown in FIG. 26, the first sealing ring 142 is provided with a first notch 1422, and the first boss 1326 can be installed in the first notch 1422. After the first sealing ring 142 is assembled on the water inlet device 132, the first notch 1422 on the first sealing ring 142 limits the first sealing ring 142 in the circumferential direction, and after the first sealing ring 142 abuts against the bottom of the accommodating space 1325 of the water inlet device 132, the first sealing ring 142 is limited in the thickness direction. After the first sealing ring 142 is assembled in place, the first water distribution piece 133 is assembled, and the first sealing ring 142 improves the sealing effect between the first water distribution piece 133 and the water inlet device 132.

[0120] In some embodiments, when the second sealing ring 143 is arranged between the second water distribution piece 134 and the spray pipe 131, the second sealing ring 143 is used to seal the gap between the part of the second water distribution piece 134 other than the water distribution hole and the surface of the spray pipe 131 facing the part of the second water distribution piece 134 other than the water distribution hole. By simultaneously limiting and clamping the second sealing ring 143 in the thickness direction and the circumferential direction, the assembly precision of the second sealing ring 143 in the thickness direction and the circumferential direction can be improved. For example, the second sealing ring 143 and the spray pipe 131 are limited and clamped in the thickness direction and the circumferential direction of the second sealing ring 143.

[0121] The spray pipe 131 is provided with at least one limiting structure for simultaneously limiting and clamping the second sealing ring 143 and the second water distribution piece 134. The simultaneous limiting of the second sealing ring 143 and the second water distribution piece 134 by the same limiting structure can simultaneously form the relative positions between the second sealing ring 143, the second water distribution piece 134 and the spray pipe 131, thereby improving the assembly precision of the second sealing ring 143 and the second water distribution piece 134.

[0122] As shown in FIGS. 27-29, the edge of the second sealing ring 143 is provided with a second notch 1432, and the second boss 1317 can be installed in the second notch 1432. After the second sealing ring 143 is assembled on the spray pipe 131, the second notch 1432 on the second sealing ring 143 and the second boss 1317 form a limit in the circumferential direction of the second sealing ring 143, and after the second sealing ring 143 abuts against the bottom of the accommodation space 1318 of the spray pipe 131, a limit in the thickness direction of the second sealing ring 143 is formed. After the second sealing ring 143 is assembled in place, the second water distribution sheet 134 is then assembled, and the sealing effect between the second water distribution sheet 134 and the spray pipe 131 is improved by the second sealing ring 143.

[0123] In some embodiments, as shown in FIGS. 27-29, in the circumferential direction of the spray pipe 131, the second boss 1317 is located between the liquid inlet of the adjacent first flow channel 1314 and the second flow channel 1315; the portion in the accommodation space 1318 between the liquid inlet of the first flow channel 1314 and the second flow channel 1315 is provided with a sealing recess 1316, and the side of the second sealing ring 143 facing the spray pipe 131 is formed with a sealing protrusion 1434, which can be installed in the sealing recess 1316. By arranging the second boss 1317 between the liquid inlet of the adjacent first flow channel 1314 and the second flow channel 1315, and providing the portion between the liquid inlet of the first flow channel 1314 and the second flow channel 1315 with a sealing recess 1316 to cooperate with the sealing protrusion 1434 on the second sealing ring 143, the sealing effect of the portion between the liquid inlet of the first flow channel 1314 and the second flow channel 1315 and the second sealing ring 143 can be improved, thereby avoiding water leakage between the first flow channel 1314 and the second flow channel 1315.

[0124] In some embodiments, as shown in FIG. 30, the second sealing ring 143 is provided with two annular sealing protrusions 1433 on the side facing the second water distribution sheet 134, and the two annular sealing protrusions 1433 respectively extend into the first water distribution hole 1341 and the second water distribution hole 1342 of the second water distribution sheet 134, further improving the sealing effect.

[0125] Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the features disclosed herein. It is intended that the specification and examples be considered as exemplary only, with the true scope and spirit of the disclosure being indicated by the following claims.

Claims

1. A filter cleaning module, characterized by, The utility model relates to a filter assembly, a spraying assembly and a driving assembly. The filter assembly comprises a filter housing and a filter element, the filter housing is formed with an air duct having an air inlet and an air outlet, and the filter element is arranged in the air duct for filtering the gas passing through the air duct. The spraying assembly comprises a water inlet device, a spraying pipe and a water distribution element, the spraying pipe is provided with a plurality of spraying holes for spraying the filter element, the water inlet device is communicated with the spraying pipe through the water distribution element, and the water distribution element is limitedly clamped with the water inlet device along the thickness direction and / or the circumferential direction of the water distribution element. The driving assembly is connected with the spraying pipe for driving the spraying pipe to rotate. The water inlet device is formed with an accommodating space, the water distribution element is arranged in the accommodating space, the water inlet device is provided with a first boss in the accommodating space, the water distribution element is provided with a first groove on the surface thereof facing the water inlet device along the thickness direction, and the first boss is arranged in the first groove.

2. The filter cleaning module of claim 1, wherein, The water inlet device is provided with a first limiting groove on the side wall of the accommodating space, the first limiting groove extends from the water inlet of the water inlet device to the water outlet of the water inlet device, the edge of the water distribution element is provided with a first protrusion, and the first protrusion is arranged in the first limiting groove.

3. The filter cleaning module of claim 2, wherein, The water distribution element comprises a first water distribution piece and a second water distribution piece, the first water distribution piece and the second water distribution piece are arranged in a stacked manner along the thickness direction, the water inlet device is communicated with the spraying pipe through the first water distribution piece and the second water distribution piece, and the first water distribution piece is limitedly clamped with the water inlet device along the thickness direction and / or the circumferential direction of the water distribution element.

4. The filter cleaning module according to any one of claims 1 to 3, characterized in that A first sealing ring is arranged between the first water distribution piece and the water inlet device, the first sealing ring is used for sealing the gap between the part of the first water distribution piece other than the water outlet hole and the surface of the water inlet device facing the part of the first water distribution piece other than the water outlet hole.

5. The filter cleaning module of claim 4, wherein, The first sealing ring is limitedly clamped with the water inlet device along the thickness direction and / or the circumferential direction of the first sealing ring.

6. The filter cleaning module of claim 5, wherein, At least one limiting structure is arranged on the water inlet device for simultaneously limiting and clamping the first sealing ring and the first water distribution piece.

7. The filter cleaning module of claim 6, wherein, The water inlet device is formed with an accommodating space, the first water distribution piece and the first sealing ring are arranged in the accommodating space, the water inlet device is provided with a first boss in the accommodating space, the first water distribution piece is provided with a first groove on the surface thereof facing the water inlet device along the thickness direction, the edge of the first sealing ring is provided with a first notch, and the first boss is arranged in the first groove and the first notch.

8. The filter cleaning module of claim 7, wherein, The water inlet device is formed with an accommodating space, the first water distribution piece and the first sealing ring are arranged in the accommodating space, the water inlet device is provided with a first boss in the accommodating space, the first water distribution piece is provided with a first groove on the surface thereof facing the water inlet device along the thickness direction, the edge of the first sealing ring is provided with a first notch, and the first boss is arranged in the first groove and the first notch.

9. The filter cleaning module of any one of claims 4-8, wherein, The second water distribution piece is arranged in the accommodating space of the liquid inlet of the spraying pipe, the spraying pipe is provided with a second boss in the accommodating space, the second water distribution piece is provided with a second groove on the surface thereof facing the spraying pipe along the thickness direction, and the second boss is arranged in the second groove.

10. The filter cleaning module of claim 9, wherein, A second sealing ring is arranged between the second water distribution piece and the spraying pipe, the second sealing ring is used for sealing the gap between the part of the second water distribution piece other than the water distribution hole and the surface of the spraying pipe facing the part of the second water distribution piece other than the water distribution hole.

11. The filter cleaning module of claim 10, wherein, The second sealing ring is provided with a second notch, and the second boss is located in the second notch.

12. The filter cleaning module of claim 11, wherein, The spray pipe is provided with first flow channels and second flow channels which are arranged at intervals in the circumferential direction, and the spray holes of the first flow channels and the spray holes of the second flow channels are arranged in parallel and / or at intervals in the rotation direction; The first water distribution piece is provided with water outlet holes through which the cleaning liquid in the water inlet device flows out; the second water distribution piece is provided with first water distribution holes and second water distribution holes, the first water distribution holes are in communication with the first flow channels, and the second water distribution holes are in communication with the second flow channels; and the second water distribution piece is rotatable relative to the first water distribution piece.

13. The filter cleaning module of claim 12, wherein, In the circumferential direction of the spray pipe, the second boss is located between the liquid inlets of the adjacent first flow channels and second flow channels; the part of the accommodation space located between the liquid inlets of the first flow channels and the second flow channels is provided with a sealing recess, and the second sealing ring is formed with a sealing protrusion on one side thereof facing the spray pipe in the thickness direction, and the sealing protrusion is located in the sealing recess.

14. The filter cleaning module of claim 13, wherein, The second sealing ring is provided with two annular sealing protrusions on the side thereof facing the second water distribution piece, and the two annular sealing protrusions respectively extend into the first water distribution holes and the second water distribution holes of the second water distribution piece. 15.A laundry treating apparatus, characterized by, The laundry treatment barrel; The drying module; The filter cleaning module according to any one of claims 1 to 14, wherein the drying module is in communication with the laundry treatment barrel through the air duct of the filter cleaning module. ​

Images