Drying system, clothes processing equipment and control method

Abstract

The invention relates to the technical field of clothes treatment equipment, particularly provides a drying system, clothes treatment equipment and a control method, and aims to solve the problem that a filter screen of a drying system of existing clothes treatment equipment needs to be frequently cleaned by a user, and the use experience of the user is seriously influenced. In order to achieve the purpose, the drying system comprises an air duct and a filter screen arranged in the air duct, and further comprises an electric scraping plate arranged on the upstream of the filter screen and used for scraping soft flocks on the filter screen; and the spraying device is arranged in the air duct and is used for washing the soft flocks. According to the filter screen cleaning device, soft flocks on the filter screen are scraped and gathered through the electric scraping plate, then the soft flocks gathered through the electric scraping plate are flushed out through the spraying device, the soft flocks on the filter screen are cleaned, a user can complete cleaning of the filter screen without disassembling the filter screen, automatic cleaning of the filter screen is achieved, and the use experience of the user is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of clothing processing equipment, and specifically provides a drying system, clothing processing equipment and a control method. Background Art

[0002] Clothes processing equipment with drying function refers to machines that can use hot air to dry clothes, mainly including washing and drying machines, clothes dryers or drying machines.

[0003] When clothes are being dried by the clothes treatment equipment, the circulating airflow will carry the hair dander shed during washing into the drying system. Over time, the hair dander will clog the drying system (for electric heating type washer-dryers, the hair dander will hang on the electric heater and the air duct; for heat pump type washer-dryers, the hair dander will get stuck in the fins), thus affecting the drying efficiency. To solve this problem, one (or two) layers of filters are usually set in the air inlet channel of the drying system to filter the hair dander shed by the clothes.

[0004] However, after the user uses the drying function several times, the filter needs to be pulled out and cleaned through the pull-out mechanism to ensure the stability of the drying system. In order to ensure the drying effect, the user needs to clean the filter frequently, which is very laborious and seriously affects the user experience.

[0005] Therefore, this field needs a new technical solution to solve the above problems. Summary of the invention

[0006] The present invention aims to solve the above technical problem, that is, to solve the problem that the filter screen of the drying system of the existing clothing processing equipment needs to be cleaned frequently by the user, which seriously affects the user experience.

[0007] In a first aspect, the present invention provides a drying system, comprising an air duct (21) and a filter (31) arranged in the air duct (21), the drying system also comprising an electric scraper (41) and a spray device (42), wherein the electric scraper (41) is arranged upstream of the filter (31) and is used to scrape hair debris on the filter (31); and the spray device (42) is arranged in the air duct (21) and is used to flush hair debris.

[0008] In the preferred technical solution of the above-mentioned drying system, the electric scraper (41) includes a scraper body and a driver, wherein the scraper body is arranged along the width direction of the filter (31), and the side of the scraper body close to the filter (31) is elastically abutted against the filter (31); the driver is connected to the scraper body and is used to drive the scraper body to reciprocate along the length direction of the filter (31).

[0009] In the preferred technical solution of the above-mentioned drying system, the scraper body includes a sliding seat and a flexible part, the sliding seat is transmission-connected to the working end of the driver; the flexible part extends from a side of the sliding seat close to the filter (31) toward the filter (31), and the extension length is greater than or equal to the gap between the sliding seat and the filter (31).

[0010] In the preferred technical solution of the above-mentioned drying system, the spray device (42) includes a first spray pipe (421) arranged on one side of the filter screen (31) and extending along the length direction of the filter screen (31), and the first spray pipe (421) is provided with a spray port opened toward the filter screen (31).

[0011] In the preferred technical solution of the above drying system, the filter screen (31) is inclined from top to bottom, toward the upstream of the air duct (21); and / or

[0012] The first spray pipe (421) is arranged upstream of the filter screen (31), and the spray opening on the first spray pipe (421) corresponds to the top of the filter screen (31), or the spray openings are arranged in a plurality of rows along the circumference of the first spray pipe (421), the uppermost spray opening corresponds to the top of the filter screen (31), and the lowermost spray opening corresponds to the bottom of the filter screen (31); and / or

[0013] The spray device (42) further comprises a second spray pipe (422) arranged near the air inlet end of the air duct (21), and the second spray pipe (422) is provided with a flushing port for flushing hair debris in the air duct (21) upstream of the filter screen (31).

[0014] In the preferred technical solution of the above-mentioned drying system, the air duct (21) is arranged above the drum module (1), and the air inlet end of the air duct (21) is bent downward and connected to the drum module (1); the second spray pipe (422) extends from the corner of the air inlet end of the air duct (21) into the air duct (21).

[0015] In the preferred technical solution of the above-mentioned drying system, the second spray pipe (422) extends to the middle part of the air duct (21), and the flushing port is arranged at the end of the second spray pipe (422), and the flushing port includes: a first flushing port (4221) extending axially along the second spray pipe (422) and toward the inner wall of the air inlet end of the air duct (21) close to the filter (31), and a second flushing port (4222) extending circumferentially along the second spray pipe (422) and toward the inner wall of the air inlet end of the air duct (21) away from the filter (31).

[0016] In a second aspect, the present invention further provides a clothes processing device, comprising the above-mentioned drying system, wherein the drying system (2) is connected to the drum module (1) of the clothes processing device.

[0017] In a third aspect, the present invention further provides a control method for a laundry processing device, the control method comprising the following steps:

[0018] During the washing and drainage stage, the hair scraps accumulated on the filter screen (31) are flushed, and the hair scraps are flushed into the outer cylinder of the cylinder module (1) and discharged through the drainage pipeline.

[0019] In the preferred technical solution of the above control method, the control method further includes:

[0020] When the spray device (42) is working, obtaining the water level in the outer cylinder;

[0021] The flow rate of the spray device (42) is controlled according to the water level in the outer cylinder so that the water level in the outer cylinder is lower than the bottom of the inner cylinder.

[0022] When adopting the above-mentioned technical scheme, the present invention scrapes and gathers the hair debris on the filter screen by an electric scraper, and then uses a spray device to flush out the hair debris gathered by the electric scraper. That is, the hair debris on the filter screen is cleaned by the cooperation of the electric scraper and the spray device, and the user can clean the filter screen without disassembling the filter screen, thereby realizing automatic cleaning of the filter screen, improving the automation level of the clothing processing equipment, and improving the user experience.

[0023] Furthermore, the present invention configures the spray device to include a first spray pipe and a second spray pipe, so that the wire scraps are separated from the filter under the spraying action of the water flow of the first spray pipe, and flow toward the air inlet end of the air duct under the flushing of the water flow, and the water flow of the second spray pipe flushes the hair debris remaining at the corners of the air inlet end of the air duct and on the inner wall of the port at the air inlet end of the air duct, thereby ensuring that all the hair debris cleaned from the filter is cleared away.

[0024] Furthermore, the present invention detects the water level in the outer drum and adjusts the flow rate of the spray device according to the water level in the outer drum, so that the water level of the spray water for flushing the lint is always lower than the bottom of the inner drum, thereby preventing the lint from sticking to the clothes in the inner drum and ensuring the cleaning effect of the clothes. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings, in which:

[0026] Figure 1 It is a structural schematic diagram of a cartridge module in an embodiment of the present invention;

[0027] Figure 2 It is a structural schematic diagram of a drum module and a drying system in an embodiment of the present invention;

[0028] Figure 3 It is a structural schematic diagram of a drying system in an embodiment of the present invention;

[0029] Figure 4 A top view of a drying system in an embodiment of the present invention;

[0030] Figure 5 It is a cross-sectional view of the corner of the second air duct in the embodiment of the present invention.

[0031] List of reference numerals:

[0032] 1. Cylinder module; 11. Air inlet; 111. Air inlet joint; 12. Air outlet; 121. First extension part; 2. Drying system; 21. Air duct; 211. First air duct; 2111. First air guide part; 212. Second air duct; 2121. Second air guide part; 22. Fan; 23. Air guide pipe; 31. Filter; 32. Pull-out mechanism; 321. Shell; 322. Pull-out part; 323. Decorative plate; 4. Filter cleaning structure; 41. Electric scraper; 42. Spray device; 421. First spray pipe; 422. Second spray pipe; 4221. First flushing port; 4222. Second flushing port; 7. Water box; 71. Detergent box; 72. Front decorative plate. DETAILED DESCRIPTION

[0033] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are only used to explain the technical principles of the present invention and are not used to limit the scope of protection of the present invention. Those skilled in the art can make adjustments to them as needed to adapt to specific application scenarios. For example, although the following content is described in conjunction with a washer-dryer, the technical solution of the present invention is also applicable to other types of clothing processing equipment with drying functions, such as dryers, etc. Such adjustments and changes to the application objects do not deviate from the principles and scope of the present invention and should be limited within the scope of protection of the present invention.

[0034] It should be noted that in the description of the present invention, the terms "upper", "lower", "left", "right", "top", "bottom" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings, which are only for the convenience of description, and do not indicate or imply that the relevant devices or elements must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, ordinal numbers "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0035] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installation", "setting" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0036] like Figures 1 to 5 As shown, the present invention provides a washer-dryer, which includes a drum module 1 and a drying system 2. The drying system 2 is connected to the drum module 1 and is used to dry the clothes in the drum module 1.

[0037] Among them, the drying system 2 includes an air duct 21, a fan 22, a condensation structure and a heating structure. The drying airflow is powered by the fan 22, circulates between the air duct 21 and the drum module 1, and the air is heated by the heating structure and blown into the drum module 1. The hot air comes into contact with the clothes in the drum module 1 and takes away moisture in the clothes, thereby drying the clothes in the drum module 1.

[0038] In this embodiment, the fan 22 can be provided separately, or can be integrated inside the air duct 21. Preferably, in this embodiment, the fan 22 is provided separately.

[0039] Preferably, if Figure 2 As shown, the drying system 2 is arranged above the drum module 1 .

[0040] For example, Figure 1 and Figure 2 As shown, the drum module 1 is provided with an air inlet 11 and an air outlet 12, the air inlet end of the air duct 21 is connected with the air outlet 12 on the drum module 1, and the air outlet end of the air duct 21 is connected with the air inlet 11 on the drum module 1. The air inlet 11 and the air outlet 12 are both provided at the top of the drum module 1, and the air duct 21 and the fan 22 are respectively fixed on the top inner wall of the housing of the washer-dryer.

[0041] Preferably, if Figure 1 and Figure 2 As shown, the air inlet 11 and the air outlet 12 on the barrel module 1 are respectively arranged at the top front end and the top rear end of the barrel module 1, and the air inlet 11 and the air outlet 12 are located on both sides of the central axis of the barrel module 1. The air duct 21 is set to be L-shaped. The air duct 21 first extends from the air inlet 11 along the axial direction of the barrel module 1 to the rear end of the barrel module 1, and after extending to the same level as the air outlet 12, it extends laterally to connect with the air outlet 12.

[0042] Preferably, if Figure 2 and Figure 3As shown, the air duct 21 includes a first air duct 211 extending axially backward from the air inlet 11 , and a second air duct 212 extending laterally from the rear end of the first air duct 211 and communicating with the air outlet 12 .

[0043] In this embodiment, by setting the air duct 21 to be L-shaped, the air duct 21 can avoid the top of the drum module 1, so that the overall structure of the drying system 2 is integrated in the space on both sides above the drum module 1. The gap between the box body and the drum module 1 can be fully utilized, making the overall layout of the washer-dryer more compact, thereby reducing the overall size of the washer-dryer.

[0044] Preferably, if Figure 1 As shown, the drum module 1 includes an inner drum and an outer drum coaxially sleeved outside the inner drum, and the drying system 2 is connected to the outer drum. The air inlet 11 is arranged on the window pad of the drum module 1, and is arranged as a strip hole extending along the circumference of the drum module 1. The window pad is provided with an air inlet connector 111 arranged around the air inlet 11 and extending radially outwardly of the drum module 1, and the air outlet end of the air duct 21 is connected to the air inlet connector 111.

[0045] Preferably, if Figures 1 to 3 As shown, a first air guide portion 2111 is provided at one end of the first air duct 211 connected to the air inlet connector 111, and a diameter of the first air guide portion 2111 gradually decreases in a direction approaching the air inlet 11, and a shape of an end of the first air guide portion 2111 close to the air inlet 11 is adapted to a shape of an end portion of the air inlet connector 111, and an end of the air inlet connector 111 away from the window pad is bent and extended backward and is socketed with a port of the first air guide portion 2111.

[0046] Preferably, if Figures 1 to 3 As shown, a second air guide portion 2121 is disposed at one end of the second air duct 212 connected to the air outlet 12 . The second air guide portion 2121 is bent toward the direction close to the central axis of the barrel module 1 and connected to the air outlet 12 .

[0047] Preferably, if Figures 2 to 5 As shown, the second air guide portion 2121 includes a first pipe segment, a second pipe segment and a third pipe segment that are spliced ​​or integrally formed, and the first pipe segment, the second pipe segment and the third pipe segment are arranged in sequence along a direction close to the air outlet 12.

[0048] The first pipe segment bends and extends downward in a direction away from the first air duct 211, at least the top wall of the first pipe segment is set to be arc-shaped, and the front side of the first pipe segment bends and extends backward in an extension direction away from the first air duct 211. The second pipe segment extends vertically downward from the port of the first pipe segment, and preferably, the second pipe segment is set to be a bellows for buffering the vibration of the barrel module 1. The third pipe segment bends and extends from the port of the second pipe segment in a direction close to the central axis of the barrel module 1, and the port of the third pipe segment is connected to the air outlet 12.

[0049] In this embodiment, the first air duct 211 and the second air duct 212 are connected via the fan 22. Specifically, the first air duct 211 is connected to the air outlet of the fan 22, and the second air duct 212 is connected to the air inlet of the fan 22.

[0050] Preferably, the drying system of the present invention also includes a heat pump module (not shown in the figure), which includes a condenser, an evaporator, a compressor and an expansion valve; the condenser is a heating structure and is arranged in the first air duct 211, and is used to heat the drying airflow entering the drum module 1; the evaporator is a condensation structure and is arranged in the second air duct 212, and is used to condense the airflow flowing out of the drum module 1.

[0051] In this embodiment, the first air duct 211 and the second air duct 212 are both split-type. Specifically, the first air duct 211 includes a detachably fixedly connected heating chamber section and a first air guide 2111, and the second air duct 212 includes a detachably fixedly connected condensing chamber section and a second air guide 2121, the condenser is arranged in the heating chamber, the evaporator is arranged in the condensing chamber, the heating chamber is connected to the air outlet end of the fan 22, and the condensing chamber is connected to the air inlet end of the fan 22.

[0052] Preferably, in this embodiment, the condenser and the evaporator are both finned heat sinks, the shape of the condenser is adapted to the shape of the heating chamber, and the shape of the evaporator is adapted to the shape of the condensing chamber.

[0053] Preferably, the fan 22 includes a volute and a drive motor, the drive motor is mounted on the volute, the working end of the drive motor extends into the volute, an impeller is provided at the working end of the drive motor, and the drive motor drives the impeller to rotate to drive the airflow.

[0054] Among them, the air inlet end of the fan 22 is coaxially arranged on the side of the volute opposite to the second air duct 212, the drive motor is coaxially arranged on the side of the volute opposite to the second air duct 212, and the air outlet end of the fan 22 extends toward the front end of the barrel module 1 along the axial direction of the barrel module 1.

[0055] Preferably, if Figure 2 As shown, the first air duct 211 is arranged on the upper right side of the cylinder module 1, extending horizontally from front to rear, the second air duct 212 is arranged on the upper rear side of the cylinder module 1, extending horizontally to the left from the rear end of the first air duct 211, the air inlet end of the fan 22 is arranged to the left, the impeller is arranged in the volute, and the axis of the impeller extends in the left and right directions.

[0056] Preferably, if Figure 2 and Figure 3As shown, a guide tube 23 connected to the air inlet end of the fan 22 is provided at the end of the second air duct 212, a first end (the left end in the figure) of the guide tube 23 is connected to the end of the second air duct 212, and a second end (the right end in the figure) of the guide tube 23 is connected to the air inlet end of the fan 22.

[0057] The second air duct 212 is configured as a flat pipe with a rectangular cross-section, the air inlet end of the fan 22 is configured as a circular opening coaxial with the volute, the first end of the guide tube 23 is configured as a rectangle adapted to the end of the second air duct 212, and the second end of the guide tube 23 is configured as a circle adapted to the shape of the air inlet end of the fan 22.

[0058] The guide pipe 23 bends and extends downward from the first end to the second end. Preferably, the second end of the guide pipe 23 is connected to the air inlet end of the fan 22 in a direction perpendicular to the side of the volute near the air outlet 12. By providing the guide pipe 23, a compact layout can be ensured, and smooth air flow can be ensured to prevent air flow turbulence.

[0059] The air outlet of the fan 22 is arranged toward the front end of the barrel module 1, and the first air duct 211 extends from the air outlet of the fan 22 toward the front of the barrel module 1. The shape of the end of the first air duct 211 away from the air inlet 11 is adapted to the shape of the air outlet of the fan 22, the top of the volute is flush with the top of the first air duct 211, and the bottom wall and left and right side walls of the end of the first air duct 211 are smoothly contracted inwardly in the direction close to the fan 22.

[0060] Preferably, if Figures 2 to 5 As shown, the drying system 2 of the present invention further includes a filtering device, which includes a filter screen 31 disposed in the air duct 21 and used for filtering hair debris entering the air duct 21 . The filter screen 31 is detachably installed in the air duct 21 .

[0061] Preferably, if Figures 2 to 4 As shown, the filtering device of the present invention further includes a pulling mechanism 32 for disassembling the filter screen 31 .

[0062] Exemplarily, the second air duct 212 extends horizontally in the left-right direction at the top rear side of the barrel module 1, the filter 31 is arranged in the second air duct 212 and extends in the front-back direction, and the pulling part of the pulling mechanism 32 is pulled from the front panel of the box.

[0063] In this embodiment, the filter screen 31 is arranged in the second air duct 212, near one end of the air outlet 12 of the cartridge module 1, and the arrangement direction of the filter screen 31 is arranged at a certain angle to the extension direction of the second air duct 212, so that the cross section of the filter screen 31 along the width direction is covered, so that the airflow flowing through the second air duct 212 is filtered by the filter screen 31. The extension direction of the filter screen 31 can be perpendicular to the extension direction of the second air duct 212, or it can be non-perpendicular, as long as the projection of the filter screen 31 can cover the cross section of the second air duct 212.

[0064] The filter 31 is set in the second air duct 212 and can be pulled out from one side of the second air duct 212. The user can pull out the filter 31 to take it out. The pulling mechanism 32 is set on the side of the second air duct 212 and is connected to the filter 31, so that the filter 31 can be pulled out and put in by the pulling mechanism 32.

[0065] Preferably, if Figures 2 to 4 As shown, the access opening of the filter 31 is arranged at the front side of the second air duct 212, and the user pulls out and takes out the filter 31 from the front end of the washer-dryer.

[0066] Preferably, if Figures 2 to 4 As shown, the pulling mechanism 32 includes a shell 321 and a pulling portion 322 installed in the shell 321. The shell 321 is configured to be strip-shaped, extending from the take-out port of the filter 31 along the pulling direction of the filter 31. The pulling portion 322 is slidably arranged in the shell 321. The pulling portion 322 is connected to the filter 31, and the pulling portion 322 extends in the shell 321 along the pulling direction of the filter 31. Therefore, the user can pull out and take out the filter 31 through the pulling portion 322 to realize the disassembly, replacement, maintenance and cleaning of the filter 31.

[0067] Preferably, if Figure 2 As shown, a detergent box 71 for storing detergent is also provided on the box body. The detergent box 71 is drawable and arranged on the front side of the box body. Specifically, the detergent box 71 can be drawn out from the panel of the box body.

[0068] The front end of the detergent box 71 is provided with a front decorative panel 72 for engaging with the panel and shielding the detergent box 71. The material, color, and / or glossiness of the front decorative panel 72 are consistent with the panel. When the detergent box 71 is closed, the front decorative panel 72 is engaged with the panel, and the surrounding side of the front decorative panel 72 has a smooth transition with the panel.

[0069] Preferably, if Figure 3 and Figure 4As shown, a decorative plate 323 for shielding the pulling mechanism 32 is embedded on the panel, and the material, color, and / or glossiness of the decorative plate 323 are consistent with those of the panel. When the pulling portion 322 of the pulling mechanism 32 is reset, the decorative plate 323 is embedded in the panel, and the surrounding side of the decorative plate 323 has a smooth transition with the panel.

[0070] Preferably, if Figures 3 to 5 As shown, in order to improve the intelligence level of the washer-dryer and enhance the user experience, in an embodiment of the present invention, a filter cleaning structure 4 for cleaning the filter 31 is provided in the air duct 21 .

[0071] Specifically, Figures 3 to 5 As shown, the filter cleaning structure 4 includes an electric scraper 41 and a spray device 42 . The electric scraper 41 is used to scrape and collect hair debris on the filter 31 , and the spray device 42 is used to rinse the hair debris collected on the filter 31 , thereby cleaning the hair debris out of the air duct 21 .

[0072] Preferably, the electric scraper 41 includes a scraper body and a driver for driving the scraper body to reciprocate. The working end of the driver is in transmission connection with the scraper body, and is used to drive the scraper body to reciprocate along the length direction of the filter screen 31.

[0073] The scraper body is arranged along the width direction of the filter screen 31 , and the side of the scraper body close to the filter screen 31 is elastically in contact with the filter screen 31 .

[0074] Preferably, the scraper body includes a sliding seat and a flexible part arranged on the sliding seat. The sliding seat is slidably matched with the air duct 21 and is transmission connected to the driver. The flexible part extends from the side of the sliding seat close to the filter 31 toward the filter 31, and the extension length is greater than or equal to the gap between the sliding seat and the filter 31, that is, the scraper body is elastically abutted against the filter 31 through the flexible part.

[0075] When the driver drives the scraper body to reciprocate along the length direction of the filter screen 31 , the flexible portion scrapes off the hair debris on the filter screen 31 and gathers it on both sides of the filter screen 31 to be cleaned.

[0076] Preferably, the top and bottom of the scraper body are respectively in contact with the top inner wall and bottom inner wall of the air duct 21, and a slide rail is provided between the top and / or bottom of the scraper body and the inner wall of the air duct 21. The scraper body is driven by the driver to reciprocate between the front and rear inner walls of the air duct 21 to clean the hair debris on the filter 31.

[0077] Preferably, a slide rail is provided on the top wall of the air duct 21, a slider adapted to the slide rail is provided on the top of the slide seat, the slider is embedded in the slide rail and slides along the slide rail, and the bottom of the slide seat is transmission-connected to the working end of the driver.

[0078] Preferably, the driver can be an electric cylinder, a pneumatic cylinder or a motor.

[0079] Preferably, the scraper body is driven by a motor and the transmission is performed through a screw.

[0080] The screw extends along the width direction of the air duct 21 and is parallel to the extension direction of the filter screen 31. The two ends of the screw are axially limited with the front and rear side walls of the air duct 21. The screw passes through the sliding seat and is threaded with the sliding seat. One end of the screw at least partially extends to the outside of the air duct 21 and is transmission-connected with the working end of the motor. The working end of the motor rotates to drive the screw to rotate, and the scraper body is driven to slide back and forth through the screw.

[0081] Preferably, the screw rod is spaced apart from the bottom wall of the air duct 21 to allow water to pass through.

[0082] Preferably, the side of the scraper body close to the filter 31 extends along the width direction of the filter 31, and the length of the side of the scraper body close to the filter 31 is greater than or equal to the width of the filter 31, that is, the side of the scraper body close to the filter 31 is in the width direction of the filter 31.

[0083] Preferably, the flexible portion is configured as a brush or a flexible plate. Further preferably, the flexible plate is a silicone plate or a rubber plate.

[0084] Preferably, the filter screen 31 extends in the front-to-back direction, and the length direction of the filter screen 31 is the width direction of the air duct 21 .

[0085] Preferably, if Figure 5 As shown, the spray device 42 includes a first spray pipe 421 disposed at one side of the filter screen 31 and extending along the length direction of the filter screen 31 , and a spray port opened toward the filter screen 31 is provided on the first spray pipe 421 .

[0086] It should be noted that the first spray pipe 421 can be set upstream of the filter 31, that is, the side of the filter 31 close to the air inlet end of the air duct 21, or can be set downstream of the filter 31, that is, the side of the filter 31 away from the air inlet end of the air duct 21.

[0087] Preferably, the inner wall of the air duct 21 at the bottom of the filter 31 is provided with a slope inclined downward in the direction close to the air inlet end of the air duct 21, that is, the bottom inner wall of the air duct 21 corresponding to the filter 31 is provided with a slope inclined downward in the direction close to the air inlet end of the air duct 21, so that the water sprayed into the air duct 21 flows toward the air outlet 12 of the barrel module 1.

[0088] Preferably, if Figure 5As shown, the first spray pipe 421 is arranged in the air duct 21 upstream of the filter 31 and extends along the length direction of the filter 31. A spray port arranged toward the filter 31 is arranged at the bottom of the first spray pipe 421 close to the filter 31, and spray water is sprayed from the spray port to rinse the filter 31.

[0089] There are multiple spray ports arranged at intervals along the axial direction of the first spray pipe 421, and one end of the first spray pipe 421 extends to the outside of the air duct 21 and is connected to the water inlet pipeline of the washer-dryer.

[0090] Preferably, if Figure 5 As shown, the filter screen 31 is inclined from top to bottom, toward the upstream of the air duct 21. Correspondingly, the scraper body is configured to be a trapezoid with a width gradually decreasing from top to bottom.

[0091] In this embodiment, the end of the first spray pipe 421 close to the water inlet pipe is the near water end, and the end away from the water inlet pipe is the far water end. The diameter of the spray port gradually decreases along the axial extension direction of the first spray pipe 421 to ensure that the water output of each spray pipe in the same row is the same.

[0092] In a first preferred situation, the spray ports are arranged in a row, and the spray ports on the first spray pipe 421 correspond to the top of the filter screen 31 .

[0093] In the second preferred situation, the spray ports are arranged in multiple rows along the circumferential direction of the first spray pipe 421 , the uppermost spray port corresponds to the top of the filter screen 31 , and the lowermost spray port corresponds to the bottom of the filter screen 31 .

[0094] When the spray ports are arranged in multiple rows along the circumference of the first spray pipe 421, the diameter of the spray ports gradually decreases along the arrangement direction from top to bottom, so that the spray water can not only ensure the flushing effect on the entire filter 31, but also avoid the accumulation of hair debris between the bottom of the filter 31 and the bottom inner wall of the air duct 21, thereby improving the cleaning effect of the filter 31.

[0095] Furthermore, two adjacent rows of spray ports are staggered in the circumferential direction of the first spray pipe 421 .

[0096] Preferably, if Figure 5 As shown, the spray device 42 further includes a second spray pipe 422 disposed near the air inlet end of the air duct 21 , and the second spray pipe 422 is provided with a flushing port for flushing hair debris in the air duct 21 upstream of the filter screen 31 .

[0097] Among them, the air duct 21 is arranged above the barrel module 1, the air outlet 12 of the barrel module 1 is arranged on the top side of the barrel module 1, the air inlet end of the air duct 21 is bent downward and connected to the air outlet 12 of the barrel module 1; the second spray pipe 422 extends from the corner of the air inlet end of the air duct 21 into the air duct 21.

[0098] Preferably, if Figure 5 As shown, the second spray pipe 422 extends from the top wall at the corner of the air inlet end of the air duct 21 to the inside of the air duct 21 , the end of the second spray pipe 422 extends to the middle of the air duct 21 , and the flushing port is set at the end of the second spray pipe 422 .

[0099] Preferably, if Figure 5 As shown, the second spray pipe 422 extends from the middle of the top wall at the corner of the air inlet end of the air duct 21 toward the inside of the air duct 21 along a direction perpendicular to the extension direction of the air duct 21 .

[0100] Preferably, if Figure 5 As shown, the flushing port includes: a first flushing port 4221 extending axially along the second spray pipe 422 and toward the inner wall of the air inlet end of the air duct 21 close to the filter 31, and a second flushing port 4222 extending circumferentially along the second spray pipe 422 and toward the inner wall of the air inlet end of the air duct 21 away from the filter 31.

[0101] Preferably, if Figure 5 As shown, the diameter of the second flushing port 4222 is larger than the diameter of the first water outlet. Of course, the flushing port may also only include the second flushing port 4222 without the first flushing port 4221.

[0102] Preferably, if Figure 5 As shown, the first flushing port 4221 is configured as a circular hole, and the second flushing port 4222 is configured as a fan-shaped hole.

[0103] By setting up a spray device 42 including a first spray pipe 421 and a second spray pipe 422, the wire scraps are separated from the filter 31 under the spraying action of the water flow of the first spray pipe 421, and flow toward the air inlet end of the air duct 21 under the flushing of the water flow. The water flow of the second spray pipe 422 flushes the hair scraps remaining on the corners of the air inlet end of the air duct 21 and the inner wall of the port at the air inlet end of the air duct 21, which can ensure that all the hair scraps cleaned from the filter 31 are cleared away.

[0104] Preferably, if Figure 2 As shown, the washer-dryer is provided with a water box 7, a detergent box 71 is drawable and arranged in the water box 7, a water separation tray is provided on the water box 7, and the first spray pipe 421 and the second spray pipe 422 are connected to the water separation tray of the water box 7.

[0105] Preferably, the first spray pipe 421 and the second spray pipe 422 are supplied with water through the same water supply pipe. Specifically, one end of the water supply pipe is connected to the water distribution plate of the water box 7, and the other end of the water supply pipe is connected to the first spray pipe 421 and the second spray pipe 422 through a diverter. Preferably, the diverter can be a three-way pipe.

[0106] The present invention also discloses a control method for the above-mentioned washer-dryer. Specifically, the washer-dryer includes a washing program and a drying program. When the washer-dryer is running the drying program, if the filter 31 is detected to be clogged, the electric scraper 41 can be controlled to operate to scrape the hair on the filter 31 and gather it on the side of the filter 31 to ensure that the drying program is carried out smoothly. Then, when the washer-dryer is running the washing program, the spray device 42 is operated to flush the gathered hair into the drum module 1 and discharge it from the drainage pipeline of the washer-dryer.

[0107] Preferably, during the washing and drainage stage, the hair scraps accumulated on the filter screen 31 are flushed, and the hair scraps are flushed into the outer drum of the drum module 1 and discharged through the drainage pipeline.

[0108] Preferably, during the operation of the spray device 42 , the electric scraper 41 can be operated synchronously to improve the cleaning effect of the filter screen 31 .

[0109] Preferably, a water level detection module is also provided in the barrel module 1 .

[0110] When the spray device 42 is working, the water level in the outer cylinder is obtained;

[0111] The flow rate of the spray device 42 is controlled according to the water level in the outer cylinder so that the water level in the outer cylinder is lower than the bottom of the inner cylinder.

[0112] In this embodiment, by detecting the water level in the outer drum and adjusting the flow rate of the spray device 42 according to the water level in the outer drum, the water level of the spray water for flushing the lint can be always lower than the bottom of the inner drum, thereby preventing the lint from sticking to the clothes and ensuring the cleaning effect of the clothes.

[0113] Those skilled in the art will appreciate that, although some embodiments herein include certain features included in other embodiments but not other features, the combination of features of different embodiments is meant to be within the scope of the present application and form different embodiments. For example, in the claims of the present application, any one of the claimed embodiments may be used in any combination.

[0114] So far, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

Claims

1. A drying system, comprising an air duct (21) and a filter (31) arranged in the air duct (21), characterized in that: The drying system further comprises an electric scraper (41) and a spray device (42). The electric scraper (41) is arranged upstream of the filter screen (31) and is used to scrape the hair debris on the filter screen (31); the spray device (42) is arranged in the air duct (21) and is used to flush the hair debris.

2. The drying system according to claim 1, characterized in that: The electric scraper (41) comprises a scraper body and a driver. The scraper body is arranged along the width direction of the filter screen (31), and the side of the scraper body close to the filter screen (31) is elastically in contact with the filter screen (31); the driver is connected to the scraper body and is used to drive the scraper body to reciprocate along the length direction of the filter screen (31).

3. The drying system according to claim 2, characterized in that: The scraper body includes a sliding seat and a flexible portion, The sliding seat is drivingly connected to the working end of the driver; the flexible portion extends from a side of the sliding seat close to the filter (31) toward the filter (31), and the extension length of the flexible portion is greater than or equal to the gap between the sliding seat and the filter (31).

4. The drying system according to any one of claims 1 to 3, characterized in that: The spray device (42) comprises a first spray pipe (421) arranged on one side of the filter screen (31) and extending along the length direction of the filter screen (31); the first spray pipe (421) is provided with a spray port opened toward the filter screen (31).

5. The drying system according to claim 4, characterized in that: The filter screen (31) is inclined from top to bottom, toward the upstream of the air duct (21); and / or The first spray pipe (421) is arranged upstream of the filter screen (31), and the spray opening on the first spray pipe (421) corresponds to the top of the filter screen (31), or the spray openings are arranged in a plurality of rows along the circumference of the first spray pipe (421), the spray opening on the uppermost side corresponds to the top of the filter screen (31), and the spray opening on the lowermost side corresponds to the bottom of the filter screen (31); and / or The spray device (42) further comprises a second spray pipe (422) arranged near the air inlet end of the air duct (21), and the second spray pipe (422) is provided with a flushing port for flushing hair debris in the air duct (21) upstream of the filter screen (31).

6. The drying system according to claim 5, characterized in that: The air duct (21) is arranged above the barrel module (1), and the air inlet end of the air duct (21) is bent downward and connected to the barrel module (1); the second spray pipe (422) extends from the corner of the air inlet end of the air duct (21) into the air duct (21).

7. The drying system according to claim 6, characterized in that: The second spray pipe (422) extends to the middle of the air duct (21), and the flushing port is arranged at the end of the second spray pipe (422), and the flushing port includes: a first flushing port (4221) extending axially along the second spray pipe (422) and facing the inner wall of the air inlet end of the air duct (21) close to the filter screen (31); and A second flushing port (4222) extends along the circumference of the second spray pipe (422) and faces the inner wall of the air inlet end of the air duct (21) away from the filter screen (31).

8. A clothes processing device, characterized in that: The laundry processing device comprises the drying system according to any one of claims 1 to 7, and the drying system (2) is connected to the drum module (1) of the laundry processing device.

9. A method for controlling a clothes processing device, characterized in that: The clothes processing device is the clothes processing device according to claim 8, and the control method comprises the following steps: During the washing and drainage stage, the hair scraps accumulated on the filter screen (31) are flushed, and the hair scraps are flushed into the outer cylinder of the cylinder module (1) and discharged through the drainage pipeline.

10. The control method of the clothes processing device according to claim 9, characterized in that: The control method further comprises: When the spray device (42) is working, obtaining the water level in the outer cylinder; The flow rate of the spray device (42) is controlled according to the water level in the outer cylinder, so that the water level in the outer cylinder is lower than the bottom of the inner cylinder.

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