CN117845564A - Clothes processing equipment and its lint filtering device and control method - Google Patents

Abstract

The invention relates to the technical field of clothes treatment equipment, in particular to clothes treatment equipment, a thread and chip filtering device and a control method thereof, and aims to solve the problems of complex structure and large size of the thread and chip filtering device of the traditional heat pump type washing and drying integrated machine. The thread scraps filtering device of the invention comprises: the shell is provided with an air inlet and an air outlet; a first filter member disposed within the housing, the first filter member having an arcuate filter surface; the thread scraps scraping mechanism comprises a scraping plate and a driving device, the free end of the scraping plate is abutted against the filtering surface, the pivoting end of the scraping plate is connected with the driving device and can swing relative to the shell under the action of the driving device, so that the free end is driven to slide relative to the filtering surface and scrape thread scraps accumulated on the filtering surface; a lint collecting box is removably provided under the first filter member so as to collect lint scraped from the filter surface. The thread scraps filtering device provided by the invention has the advantages of simple structure, small volume and high filtering efficiency.

Description

Clothes processing equipment and its lint filtering device and control method

Technical Field

The present invention relates to the technical field of clothing processing equipment, and specifically provides a clothing processing equipment and a lint filtering device and a control method thereof.

Background technique

In the process of washing clothes, it is inevitable that there will be lint falling off. However, the lint falling off during washing or drying cannot be completely discharged with the water flow, and some lint will adhere to the surface of clothes. In the process of drying clothes, as the air circulates, the airflow will carry the lint on the clothes to the surface of the condenser, evaporator and other components in the drying duct. After a long time, it will affect the drying performance of the washer-dryer.

At present, some heat pump washing and drying machines deal with lint in the following ways: The first is to set a spray device in the drying duct, and supply cleaning water to the inside of the drying duct through the spray device for flushing, so as to clean the residual lint in the drying duct and self-clean the drying duct, thereby improving the drying effect. However, spraying consumes a lot of water, and if there are residual lint that cannot be flushed away by clean water, the lint will dry into lumps and adhere to the filter, blocking the air path, and increasing the humidity of the air flow discharged from the inner drum to the drying duct, reducing the drying rate. The second is to configure a lint collector. The lint collectors of current heat pump washing and drying machines are all installed on the upper part of the all-in-one machine. Therefore, there must be installation space above the all-in-one machine, and a fully embedded design cannot be used, which affects the user experience. The third type is to configure a top-pullout lint filter module, which includes a filter and a panel. The user needs to remove the module from the top of the machine and manually clean the filter. The top-pullout lint filter module requires sufficient operating space to be reserved on the top of the all-in-one machine, making it impossible to make an embedded design for the washer-dryer, wasting top space and providing a poor user experience. In addition, the user needs to frequently take out and clean the filter, which is inconvenient to operate.

As an improvement, the patent document with publication number CN106149328A provides a filter system with a self-cleaning function and a clothes dryer using the filter system. Specifically, the filter system with a self-cleaning function includes a shell with an air inlet and an air outlet, a filter, a cleaning unit, a driving device, and a wire scrap collection drawer. The driving device includes a driving motor mounted on the outer wall of the shell and a screw inside the shell. The output shaft of the driving motor passes through a small hole on the shell and extends into the shell. One end of the screw cooperates with the output shaft of the driving motor, and the other end is installed in a small hole on the shell wall opposite to the motor output shaft. The cleaning unit is installed on the screw by a threaded connection and is driven to move back and forth by the screw. The lower end of the cleaning unit contacts the filter to realize the function of automatically collecting wire scraps. In the solution provided by the patent document, although the wire scraps can be automatically collected and the user is convenient for cleaning, the structure of the filter system is complex, the volume of the filter system is large, and the installation space occupied is large, which is not conducive to the cost control and miniaturization design of the washing and drying machine.

Accordingly, the art requires a new lint filtering device for a clothes processing device to solve the above problems.

Summary of the invention

The present invention aims to solve the above technical problem, that is, to solve the problem that the lint filtering device of the existing heat pump type washer-dryer has a complex structure and a large volume.

In a first aspect, the present invention provides a lint filtering device of a clothing processing equipment, the clothing processing equipment includes a drying air duct, and the lint filtering device includes: a shell, which is arranged in the drying air duct or constitutes a part of the drying air duct, the shell having an air inlet and an air outlet; a first filter component, which is arranged in the shell and located on the air circulation path so as to intercept lint carried in the drying air flow, the first filter component having an arc-shaped filtering surface; a lint scraping mechanism, which includes a scraper and a driving device, the free end of the scraper abuts against the filtering surface, the pivot end of the scraper is connected to the driving device, and can swing relative to the shell under the action of the driving device so as to drive the free end to slide relative to the filtering surface and scrape off the lint accumulated on the filtering surface; a lint collecting box, which is removably arranged below the first filter component so as to collect lint scraped from the filtering surface.

The wire scrap filtering device provided by the present invention is provided with a first filtering member having an arc-shaped filtering surface in the housing of the wire scrap filtering device, and a wire scrap scraping mechanism having a driving device and a scraper is provided, so that the scraper abuts against the surface of the first filtering member, and when the free end of the scraper slides relative to the filtering surface, the wire scraps accumulated on the surface can be scraped off. Compared with the prior art, since the first filtering member in the present invention has an arc-shaped filtering surface and cooperates with the rotatable scraper abutting therewith, the structure of the filtering device is more compact. Under the condition that the filtering area and the air outlet area are the same, the volume of the filtering device in the present invention is reduced by at least one third, and the required installation space is greatly reduced, which is conducive to the miniaturization design of the filtering device and the clothing processing equipment; in addition, since the movement amplitude of the driving end of the scraper is very small, there is no need to set a complex transmission mechanism, which is conducive to further reducing the volume of the filtering device; furthermore, the arc-shaped first filtering member is also conducive to shortening the filtering path, thereby facilitating the improvement of the filtering efficiency. The lint filtering device provided by the present invention has a simple structure, small size, and occupies a small installation space, which is conducive to the miniaturized design of clothing processing equipment. After drying, the user only needs to regularly pull out the lint collection box and clean it, which is convenient and easy to operate, and is conducive to improving product competitiveness.

When adopting the above technical solution, the implementation method of the shell can be flexibly selected. For example, it can be independently set in the drying air duct, which is conducive to the flexible arrangement of the filtering device; the shell can also constitute a part of the drying air duct, which can further save space and reduce costs.

In some embodiments of the lint filtering device of the above-mentioned laundry processing apparatus, the shell includes a first part, the first part includes a bottom plate, and the air inlet is formed on the bottom plate.

In the case of adopting the above technical solution, the air inlet is formed on the bottom plate, and the air is taken in from bottom to top during filtering, so that the setting position of the filter device in the drying air duct is more flexible. For example, the filter device can be set at a position close to the top of the box body, so that the height after setting is close to the user's operating height, which can facilitate the user to perform further cleaning. In addition, during the washing process, the scraper can cover the air inlet to prevent the generated foam from overflowing and contaminating the filter.

In some embodiments of the lint filtering device of the above-mentioned clothing processing equipment, the pivot end of the scraper is arranged close to the bottom plate so that the air inlet can be blocked by means of the scraper.

When adopting the above technical solution, the pivot end of the scraper is arranged at a position close to the bottom plate, so that the scraper can be opened and closed relative to the bottom plate. The air inlet is also formed on the bottom plate, and the free end of the scraper is in contact with the arc surface of the first filter. When the scraper is closed relative to the bottom plate, that is, the free end of the scraper moves to a position close to the bottom plate, the air inlet can be blocked to prevent the foam generated during the washing process from overflowing and entering the drying air duct; when the scraper is opened relative to the bottom plate, that is, the free end of the scraper moves to a position away from the bottom plate, the drying air duct can be kept unobstructed, thereby smoothly realizing lint filtering.

It can be understood that the pivot end of the scraper is arranged close to the bottom plate, and the pivot end of the scraper can be arranged on the bottom plate or on the side plate close to the bottom plate.

In some embodiments of the lint filtering device of the above-mentioned clothing processing equipment, the shell further includes a second part, the second part is communicated with the first part, and the air outlet is formed on the second part.

When the above technical solution is adopted, the air outlet is formed on the second part, and the position of the air outlet can be flexibly set by connecting the first part and the second part, which is more conducive to the flexible arrangement of the filter device in the drying duct.

It is understandable that, when the positions of the air inlet and the first filter element are determined, if the air outlet is formed in the first part, the air outlet direction of the air outlet in the first part is basically determined. When the second part is provided, the air outlet direction of the air outlet can be changed by a movable connection between the second part and the first part, or the air outlet direction of the air outlet can be determined by forming the air outlet on surfaces in different directions of the second part. The first part and the second part can both be square pipes, or pipes with curved surfaces, or pipes of other shapes, as long as the filter device can be smoothly connected to the drying duct. Those skilled in the art can determine the shape of the second part and the position of the air outlet according to the specific arrangement of the drying duct in the clothing processing device.

In some embodiments of the lint filtering device of the above-mentioned clothing processing equipment, the scraper includes a main body part and a flexible part connected to each other, the flexible part is located at the free end of the scraper, and the scraper abuts against the filtering surface through the flexible part.

When adopting the above technical solution, the scraper is divided into a main part and a flexible part. The scraper needs to rotate relative to the pivot end and scrape off the wire scraps on the first filter component, so it needs to have a certain rigidity. The free end of the scraper abuts against the first filter component, and excessive rigidity may easily damage the first filter component. Therefore, the scraper is divided into two functional areas, wherein the main part can be made of a material with greater rigidity to support the rotation of the scraper, and the flexible part is arranged at the free end of the scraper, and a relatively soft material can be selected to achieve the function of scraping off the wire scraps without damaging the first filter component. Specifically, the main part can be made of hard plastic, metal such as steel sheet, aluminum sheet and other materials with a certain rigidity, and the flexible part can be made of rubber, silicone, silicone rubber and other materials with strong deformation ability. The main part and the flexible part can be connected by bonding, embedding molding process and the like.

In some embodiments of the lint filtering device of the above-mentioned clothes processing equipment, a limiting member is further provided on the swinging path of the scraper.

In the case of adopting the above technical solution, that is, by setting a limiting member on the swinging path of the scraper, the swinging range of the scraper can be limited by means of the limiting member during the swinging process of the scraper to prevent the scraper from swinging excessively and losing contact with the first filter member. It should be noted that there can be multiple limiting members, and their structure is not limited. Specifically, the limiting member can be a limiting column, a limiting block, a limiting spring, etc. arranged on the first filter member or the shell, such as a long limiting block can be set at the middle position of the upper edge and the lower edge of the first filter member, or a plurality of limiting columns can be set at the end position, etc., as long as the swinging range of the scraper can be limited to prevent the scraper from swinging excessively. In addition, the limiting member includes a limiting portion that limits the scraper from continuing to swing downward and a limiting portion that limits the scraper from continuing to swing upward.

In some embodiments of the lint filtering device of the above-mentioned laundry processing apparatus, the lint filtering device further comprises a second filter member, which is disposed in the housing and located at a downstream side of the first filter member.

In the case of adopting the above technical solution, the second filter component is arranged on the downstream side of the first filter component to ensure that the airflow carrying wire scraps is first filtered by the first filter component to filter out the wire scraps with larger volume, and then filtered for the second time by the second filter component to filter out the wire scraps with smaller volume, thereby improving the filtering capacity of the filtering device. It should be noted that the position, shape and number of the second filter component are not fixed. For example, the second filter component can be installed in the first part, or the second part, or at the connection position between the first part and the second part; in addition, the second filter component can be a straight structure, an arc structure, a corrugated structure, etc.; in addition, the second filter component can be one or more. When there are multiple filter components, the filtering capacity of each filter component can be different to achieve refined filtering and improve the filtering effect. The contour shape of the second filter component depends on the shape of the shell at its installation position.

In a second aspect, the present invention provides a control method for a clothes processing device, the control method comprising: at a set time before a drying program of the clothes processing device ends, causing the scraper to swing and scrape off lint.

When the above technical solution is adopted, before the drying program ends, it is still in a state of drying airflow supply. At this time, the lint will overcome gravity under the action of the airflow and still cling to the first filter element. At this time, controlling the scraper to swing can smoothly scrape the lint into the lint collection box to prevent the lint from falling onto the bottom plate or into the air inlet under the action of gravity due to the end of the drying program and the end of the drying airflow. The problem of residual lint is prevented.

In a third aspect, the present invention provides a clothes processing device, wherein the clothes processing device comprises the lint filtering device of the clothes processing device described in any one of the above technical solutions.

Those skilled in the art can understand that, since the clothing processing device is equipped with the lint filtering device of the clothing processing device described in any of the aforementioned technical solutions, it has all the technical effects of the aforementioned lint filtering device, which will not be repeated here.

BRIEF DESCRIPTION OF THE DRAWINGS

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

FIG1 is a schematic diagram of the overall structure of a lint filtering device of a washer-dryer provided in an embodiment of the present invention;

FIG2 is a state diagram of the lint filtering device provided by an embodiment of the present invention when the washer-dryer performs drying operation;

FIG3 is a state diagram of the lint filtering device provided by an embodiment of the present invention when the washer-dryer performs washing operation;

List of reference numerals:

10. Shell; 101. First part; 1011. Bottom plate; 102. Second part; 11. Lint collecting box; 12. Scraper; 121. Main part; 122. Flexible part; 13. First filter component; 14. Second filter component; 15. Limiting component; 16. Air inlet.

Detailed ways

The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art 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 embodiments are described using a washing and drying machine as an example, the technical solution of the present invention is also applicable to other types of clothing processing equipment such as a clothes dryer, etc.

In order to better illustrate the present invention, numerous specific details are given in the following specific embodiments. It should be understood by those skilled in the art that the present invention can also be implemented without certain specific details.

In the description of the present invention, the terms "upper", "lower", "inner", "outer", "top", "bottom" and the like indicating directions or positional relationships are based on directions or positional relationships in actual applications, which are only for the convenience of description, and do not indicate or imply that the device to be protected 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, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installation" 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.

The washer-dryer provided in the embodiment of the present invention comprises a housing, a drum assembly arranged in the housing, and a drying duct arranged outside the drum assembly. A fan, an evaporator, a condenser and an electric heater are arranged in the drying duct. The fan is used to drive the air circulation in the duct, the electric heater is used to heat the circulating air, the evaporator and the condenser are used to condense the moisture in the hot and humid air and separate it from the airflow, and the clothes are dried by circulating the hot air. A lint filter is also arranged in the drying duct to filter the lint in the circulating air.

1 , a lint filtering device for a washer-dryer according to an embodiment of the present invention will be described.

As shown in FIG1 , the lint filter device of the washer-dryer provided in an embodiment of the present invention includes a housing 10, which can be arranged in the drying air duct of the washer-dryer, so as to facilitate the flexible arrangement of the lint filter device, and can also be a part of the drying air duct of the washer-dryer, so as to save installation space. In this embodiment, the housing 10 of the lint filter device is independent of the drying air duct. The housing 10 includes a first part 101 and a second part 102, the first part 101 is a square pipe structure, and the second part 102 is an arc-shaped pipe structure. The first part 101 is connected to the second part 102 by snap-fitting, and a sealing member or a sealing structure is provided at the connection position. In order to facilitate the observation of the internal structure of the lint filter device, the side wall of the first part 101 is not illustrated in FIG1 . It should be noted that the first part 101 and the second part 102 can also be both square pipe structures, can also be both arc-shaped pipe structures, and can also be pipe structures of other shapes. In addition, the first part 101 and the second part 102 can also be bonded, or the card connection and bonding are combined, but the sealing of the connection between the two parts must be ensured to prevent air leakage. In addition, the first part 101 and the second part 102 can also be relatively movable, such as the two can rotate relative to each other at the connection position. Specifically, the second part 102 can rotate relative to the first part 101 at the connection position shown in FIG. 1. Different air outlet directions can be achieved according to different connection methods and different settings of the air outlet.

Continuing to refer to FIG. 1 , the first part 101 includes a bottom plate 1011, a top plate (not shown), and a side plate (not shown). The air inlet 16 of the lint filter device is arranged on the bottom plate 1011 of the first part 101, and the air outlet (not shown) is arranged on the second part 102. The air inlet 16 is arranged on the bottom plate 1011 of the first part 101, and air can be introduced from bottom to top, which is conducive to the flexible arrangement of the lint filter device in the drying air duct. This is because the drying air duct is usually located near the top of the box, and the vent of the drying air duct is located near the top of the drum mouth. Therefore, during the drying process, the air flow needs to enter the drying air duct above the drum from bottom to top from the drum, and the air inlet 16 is arranged on the bottom plate 1011 of the first part 101, which is convenient for setting the lint filter device at a position near the top of the box. The height of the filter device after such arrangement is close to the operating height of the user, which can facilitate the user to extract the lint filter device for further cleaning. Secondly, during the washing process of the clothes processing device, the scraper 12 can cover the air inlet 16 to prevent the foam during the washing process from overflowing into the air duct and contaminating the filter component.

It is understood by those skilled in the art that, although FIG. 1 takes the air inlet 16 disposed on the bottom plate 1011 of the first part 101 as an example for description, the location of the air inlet 16 is not limited to the bottom plate 1011. According to actual needs, the air inlet 16 can also be located on the side wall or top wall of the first part 101 of the housing 10, and at the same time, the position of the rotating shaft of the scraper 12 needs to be adaptively adjusted. Specifically, the air inlet 16 can also be disposed on the right side wall of the first part 101 in FIG. 1, and the rotating shaft of the scraper 12 is disposed on the top wall or right side wall of the first part 101. These changes do not deviate from the principles of the present invention, and therefore will fall within the scope of protection of the present invention.

Continuing to refer to FIG. 1 , a first filter member 13 and a wire scraping mechanism are arranged in the first part 101 of the housing 10. The first filter member 13 is arranged on the air flow path and has an arc-shaped filtering surface. The first filter member 13 is connected to the first part 101 of the housing 10 by a snap-on method. The wire scraping mechanism includes a scraper 12 and a driving device, wherein the scraper 12 includes a main body 121 and a flexible part 122, the free end of the scraper 12 is formed on the flexible part 122, the pivot end of the scraper 12 is formed on the main body 121, the free end abuts against the filtering surface of the first filter member 13, the pivot end is connected with a rotating shaft, and the rotating shaft cooperates with the motor shaft of the driving device to drive the swinging motion of the scraping mechanism relative to the housing 10, that is, the free end slides relative to the surface of the first filter member 13 and scrapes the wire scraps accumulated on the surface of the first filter member 13. The flexible part 122 is made of elastic materials such as silica gel and silicone rubber to prevent damage to the first filter member 13 during the sliding process. The main body part 121 is made of hard plastic or metal plate, and the flexible part 122 is connected to the main body part 121 by bonding, clamping, etc.

The first filter member 13 is also provided with a limiting member 15 at both ends along the bending direction thereof. In the present embodiment, the limiting member 15 is a strip-shaped plate structure formed at the edge of the first filter member 13, and is simultaneously provided at both ends along the bending direction of the first filter member 13. When the scraper 12 is located at the position shown in FIG. 3, the lower limiting member 15 can prevent the scraper 12 from continuing to swing downward, and when the scraper 12 is located at the position shown in FIG. 2, the upper limiting member 15 can prevent the scraper 12 from continuing to swing upward. It is understandable that the limiting member 15 can also be other structures, such as a limiting column, a limiting block, a limiting spring, etc., and can also be provided on the inner wall surface of the housing 10, as long as the swing range of the scraper 12 can be limited to prevent the scraper 12 from swinging excessively. The number and setting position of the limiting member 15 are not limited, as long as the corresponding limiting effect can be achieved during the swinging process of the scraper 12.

The lint collection box 11 is arranged below the first filter component 13. As shown in Figure 1, the bottom plate 1011 of the first part 101 of the shell 10 is recessed downward to form a slot. When the lint collection box 11 is inserted into the slot, it can collect lint scraps scraped from the surface of the first filter component 13. When cleaning is needed, the lint collection box 11 can be pulled out for cleaning.

It should be noted that the connection between the first filter component 13 and the housing 10 can be a snap connection, a fastener connection, or an adhesive connection; the shape, material and connection method of the main part 121 and the flexible part 122 of the scraper 12 are not limited, but the main part 121 is required to have a certain rigidity, and the flexible part 122 cannot be too rigid to prevent damage to the first filter component 13 during operation. The sizes of the two should be determined in combination with the surface size of the first filter component 13. In addition, the free end of the scraper 12 can be a rubber brush or a flexible structure with an arc; the pivot end of the scraper 12 is set on the side close to the bottom plate 1011, the purpose is to use the scraper 12 to block the air inlet 16. It can be understood by those skilled in the art that if the setting position of the air inlet 16 is changed, the pivot end of the scraper 12 can be adjusted accordingly. These changes do not deviate from the principles of the present invention, and therefore will fall within the scope of protection of the present invention.

Those skilled in the art will appreciate that the lint collection box 11 can be directly pulled out from the slot, or a limit position can be set so that it can be pulled out without being separated from the housing 10, similar to a drawer structure.

Continuing to refer to FIG. 1 , a second filter member 14 is disposed at the connection between the first part 101 and the second part 102 of the housing 10. When viewed along the flow direction of the drying airflow, the second filter member 14 is located at the downstream side of the first filter member 13. After the drying airflow carrying the wire scraps passes through the first filter member 13 and the second filter member 14 in sequence, the filtering effect is greatly improved. It can be understood by those skilled in the art that, although the second filter member 14 in the figure is disposed at the connection between the first part 101 and the second part 102, the structure, quantity, shape and setting position of the second filter member 14 are not fixed. Those skilled in the art can dispose the second filter member 14 at the downstream side of the first filter member 13 in the first part 101 of the housing 10 or in the second part 102 of the housing 10 as needed. The shape of the second filter member 14 depends on the shape of the housing 10 at the setting position. The number of the second filter member 14 can be one or more, as long as it is disposed at the downstream side of the first filter member 13 and can filter the wire scraps in the drying airflow passing through the first filter member 13.

When the washer-dryer is in the washing state, the scraper 12 is in the closed state as shown in FIG. 3, and the air inlet 16 is blocked to prevent the foam generated during the washing process from overflowing and contaminating the filter net or even the entire filter device. When the washer-dryer is in the drying state, the scraper 12 is in the open state as shown in FIG. 2, and the drying airflow enters the first part 101 of the housing 10 from the air inlet 16, is filtered by the first filter component 13 and the second filter component 14, enters the second part 102 of the housing 10, and then passes through the air outlet and flows out from the wire scrap filtering device to filter the drying airflow. When the drying program is running, the motor first drives the scraper 12 to move from the position of FIG. 2 to the position of FIG. 3, and pre-cleans the wire scraps that may be on the first filter component 13, and then drives the scraper 12 to move from the position of FIG. 3 to the position of FIG. 2, and exposes the air inlet 16, so that the drying air duct is in the passage state, and then the washer-dryer enters the drying mode. After the drying is completed, the scraper 12 is driven to scrape off the lint 3 to 5 seconds before the end of the drying program. At this time, the drying air duct is still in the drying airflow supply state. The lint will overcome gravity under the action of the airflow and adhere to the first filter component. The motor then drives the scraper 12 to move from the position in Figure 2 to the position in Figure 3 to scrape the lint into the lint collection box 11 below.

In addition, an embodiment of the present invention further provides a control method for a clothes processing device. Taking a control method for a washing-drying machine as an example, the control method includes:

At a set time before the drying program of the washer-dryer ends, the scraper 12 is swung to scrape off the lint.

Specifically, in the control method provided by the embodiment of the present invention, the scraping action of the wire is performed before the drying program of the washer-dryer ends, and the purpose is to use the airflow to support the wire accumulated in the scraping process, so as to prevent the wire from falling during the scraping process and entering the drum assembly from the air inlet 16 on the bottom plate 1011. As shown in FIG2, during the drying process, the scraper 12 is in the position shown in FIG2, and the air inlet 16 is in an open state. During the process of the scraper 12 swinging counterclockwise to scrape the wire on the first filter member 13, the wire will gradually accumulate at a position close to the free end of the scraper 12, and then there is a risk of falling due to gravity. By controlling the scraper 12 to swing and scrape the wire at a set time before the drying program of the washer-dryer ends, such as 3 to 5 seconds before the drying ends, the wire can be prevented from falling by the lifting effect of the air flow until the scraper 12 moves to the position shown in FIG3, and the wire is completely scraped off and collected in the wire collection box 11.

It is understandable that the time in the above example is only illustrative, and those skilled in the art can adjust the specific time value as needed. In addition, the end of drying refers to the moment when the fan in the drying air duct is powered off.

Furthermore, the control method further includes:

During the period when the laundry treatment device is running a washing or rinsing program, the scraper 12 blocks the air inlet 16 .

Specifically, when the washer-dryer is running a washing or rinsing program, the scraper 12 is controlled to be in the position shown in FIG. 3 , and the scraper 12 is used to block the air inlet 16 , thereby effectively preventing foam generated during the washing or rinsing process from entering the lint filtering device.

In the control method of this embodiment, the program currently being run by the clothing processing device is obtained, and it is determined whether the program is running a washing program, a rinsing program, a drying program, or is 3 to 5 seconds before the end of the drying program. Based on the determination result, the position of the scraper 12 is selectively adjusted. Specifically, the step of "selectively adjusting the position of the scraper 12 according to the judgment result" includes: if the laundry processing device is running a washing program, the scraper 12 is placed in the position shown in FIG. 3, the scraper 12 is in a closed state, and the air inlet 16 is blocked to prevent the foam generated during the washing process from overflowing and polluting the entire filter device; if the laundry processing device is running a drying program, the scraper 12 is placed in the position shown in FIG. 2, the air inlet 16 is exposed, and the drying air duct is in a passage; if the laundry processing device is 3 to 5 seconds before the end of the drying program, it is still in a drying airflow supply state, the scraper 12 is moved from the position shown in FIG. 2 to the position shown in FIG. 3, and the lint accumulated on the first filter component is scraped off and collected into the lint collection box 11. In this process, the lint will overcome gravity under the action of the airflow and adhere to the first filter component to avoid falling below the air inlet 16. Based on experimental analysis, the lint scraping action is started 3 to 5 seconds before the end of the drying program, and the effect achieved is better. Of course, those skilled in the art can flexibly set the set time before the end of the drying program in actual applications. The adjustment of this time range does not constitute a limitation to the present invention and should be limited within the protection scope of the present invention.

The working process of the present invention can be as follows: after the clothing processing device is started, the washing program is first run, and the motor drives the scraper 12 to be in the position of Figure 3, so that the scraper 12 is in a closed state, and the air inlet 16 is blocked to prevent the foam generated during the washing process from overflowing and polluting the entire filtering device; when the washing program is over and the drying program starts to run, the motor first drives the baffle from the position of Figure 3 to the position of Figure 2, exposing the air inlet 16, so that the drying air duct is in passage, and then enters the drying mode; when the drying program runs to 3 to 5 seconds before the end, the scraper 12 is driven from the position of Figure 2 to the position of Figure 3, and the drying airflow is still supplied during the process. The lint will overcome gravity under the action of the airflow, adhere to the first filter component and be scraped off by the scraper 12, and finally collected in the lint collection box 11, which is convenient for users to clean.

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 (10)

1. A lint filter device for a clothes processing device, characterized in that the clothes processing device comprises a drying air duct, and the lint filter device comprises: A shell, which is arranged in the drying air duct or constitutes a part of the drying air duct, and the shell has an air inlet and an air outlet; A first filter component is disposed in the housing and located on the air flow path so as to intercept the lint carried in the drying air flow, and the first filter component has an arc-shaped filter surface; A wire scraping mechanism, comprising a scraper and a driving device, wherein the free end of the scraper abuts against the filter surface, the pivot end of the scraper is connected to the driving device and can swing relative to the housing under the action of the driving device, so as to drive the free end to slide relative to the filter surface and scrape off the wire scraps accumulated on the filter surface; A lint collecting box is removably disposed below the first filter member to collect lint scraped from the filter surface. 2 . The lint filtering device of a clothes processing apparatus according to claim 1 , wherein the housing comprises a first portion, the first portion comprises a bottom plate, and the air inlet is formed on the bottom plate. 3. The lint filtering device of the clothing processing equipment according to claim 2, characterized in that the pivot end of the scraper is arranged close to the bottom plate so that the air inlet can be blocked by means of the scraper. 4 . The lint filtering device of a clothes processing apparatus according to claim 2 , wherein the shell further comprises a second portion, the second portion is communicated with the first portion, and the air outlet is formed on the second portion. 5. The lint filtering device of a clothing processing apparatus according to claim 1, characterized in that the scraper comprises a main body portion and a flexible portion connected to each other, the flexible portion is located at a free end of the scraper, and the scraper abuts against the filtering surface through the flexible portion. 6 . The lint filtering device of a clothes processing apparatus according to claim 1 , wherein a limiting member is further provided on the swinging path of the scraper. 7 . The lint filtering device of a clothes processing apparatus according to claim 1 , characterized in that the lint filtering device further comprises a second filtering member, and the second filtering member is disposed in the housing and is located at a downstream side of the first filtering member. 8. A control method for a clothes processing device, characterized in that the clothes processing device comprises a drying air duct, the drying air duct is provided with a lint filtering device, and the lint filtering device comprises: A housing, which is arranged in the drying air duct or constitutes a part of the drying air duct, the housing comprises a first part, the first part comprises a bottom plate, and an air inlet of the housing is formed on the bottom plate; A first filter component is disposed in the housing and located on the air flow path so as to intercept the lint carried in the drying air flow, and the first filter component has an arc-shaped filter surface; A wire scraping mechanism, comprising a scraper and a driving device, wherein the free end of the scraper abuts against the filter surface, the pivot end of the scraper is connected to the driving device and can swing relative to the housing under the action of the driving device, so as to drive the free end to slide relative to the filter surface and scrape off the wire scraps accumulated on the filter surface; A lint collecting box is removably disposed below the first filter member to collect lint scraped from the filter surface; The control method comprises: At a set time before the drying program of the clothes processing device ends, the scraper is caused to swing and scrape off the lint. 9. The control method of the clothes processing device according to claim 8, characterized in that the control method further comprises: During the period when the laundry processing device runs a washing or rinsing program, the scraper is made to block the air inlet. 10 . A clothes processing device, characterized in that the clothes processing device comprises the lint filtering device of the clothes processing device according to any one of claims 1 to 7.