Filter screen self-cleaning method and device for washing and drying integrated machine, and filter screen self-cleaning system

Abstract

This invention discloses a method and apparatus for self-cleaning the filter screen of a washer-dryer combo, as well as a filter screen self-cleaning system. The method includes: acquiring the current operating information of the washer-dryer combo during operation; when the current operating information determines that the washer-dryer combo meets the filter screen self-cleaning conditions, controlling the drum of the washer-dryer combo to rotate in a predetermined direction; when the drum's rotation speed reaches a first predetermined speed, controlling the drum to rotate at the first predetermined speed; during the drum's rotation at the first predetermined speed, triggering the washer-dryer combo's spraying equipment to perform a spraying operation on the filter screen at a predetermined frequency, performing a self-cleaning operation on the filter screen until the cleanliness of the filter screen reaches a cleanliness threshold. This invention solves the technical problem in related technologies where the amount of fiber adhering to the lint filter device of a washer-dryer combo increases with usage time, requiring manual removal, cleaning, and reinstallation in the drying tunnel, thus severely affecting drying efficiency.

Description

Technical Field

[0001] This invention relates to the field of home appliance control technology, and more specifically, to a method and apparatus for self-cleaning the filter of a washer-dryer combo, and a filter self-cleaning system. Background Technology

[0002] Most heat pump washer-dryer combos on the market are equipped with lint filters in the drying tunnel to collect the fine fibers generated by the friction between clothes during drying. However, as the usage time increases, the amount of fibers adhering to the lint filter also increases, seriously affecting drying efficiency. Therefore, most lint filters need to be manually removed, cleaned, and then reinstalled in the drying tunnel, which is both troublesome and inconvenient. Users often neglect to clean them, which can lead to clothes not drying or taking a long time to dry.

[0003] Regarding the issue that the amount of fiber adhering to the lint filter device of the washer-dryer in the aforementioned related technologies increases with the duration of use, and that it needs to be manually removed, cleaned, and reinstalled in the drying tunnel, thus seriously affecting the drying efficiency, no effective solution has yet been proposed. Summary of the Invention

[0004] This invention provides a method and apparatus for self-cleaning the filter of a washer-dryer combo, and a filter self-cleaning system, to at least solve the technical problem in the related art that the amount of fiber adhering to the lint filter of the washer-dryer combo increases with the length of use, and that it needs to be manually removed, cleaned and then reinstalled in the drying tunnel, which seriously affects the drying efficiency.

[0005] According to one aspect of the present invention, a method for self-cleaning the filter of a washer-dryer combo is provided, comprising: during the operation of the washer-dryer combo, acquiring current operating information of the washer-dryer combo, wherein the current operating information includes at least one of the following: the current drying cycle value of the washer-dryer combo, the exhaust temperature of the washer-dryer combo, and the condensation temperature, wherein the drying cycle value represents the number of times the washer-dryer combo completes the drying process; when it is determined according to the current operating information that the washer-dryer combo meets the filter self-cleaning conditions, controlling the drum of the washer-dryer combo to rotate in a predetermined direction, wherein the filter self-cleaning conditions are used to determine whether the filter of the washer-dryer combo needs to perform a self-cleaning operation; when the rotation speed of the drum in the predetermined direction reaches a first predetermined speed, controlling the drum to rotate at the first predetermined speed; during the rotation of the drum at the first predetermined speed, triggering the spraying device of the washer-dryer combo to perform a spraying operation on the filter at a predetermined frequency to perform a self-cleaning operation on the filter until the cleanliness of the filter reaches a cleanliness threshold.

[0006] Optionally, when the current operating information includes the current drying cycle value, determining that the washer-dryer meets the filter self-cleaning condition based on the current operating information includes: comparing the current drying cycle value with a drying cycle threshold to obtain a comparison result, wherein the drying cycle threshold is a threshold determined based on the thickness of the deposits on the filter; when the comparison result indicates that the current drying cycle has reached the drying cycle threshold, determining that the washer-dryer meets the filter self-cleaning condition.

[0007] Optionally, when the current operating information includes the exhaust temperature and the condensation temperature, determining that the washer-dryer meets the filter self-cleaning condition based on the current operating information further includes: determining that the washer-dryer meets the filter self-cleaning condition when the difference between the exhaust temperature and the condensation temperature is greater than a temperature difference threshold, and / or when the condensation temperature is greater than a first temperature threshold.

[0008] Optionally, after performing a self-cleaning operation on the filter screen until the cleanliness of the filter screen reaches a cleanliness threshold, the method further includes: triggering the spraying device to stop performing the spraying operation; and continuing to control the roller to rotate at the first predetermined speed to perform a secondary cleaning of the filter screen.

[0009] Optionally, after performing self-cleaning on the filter until the cleanliness of the filter reaches a cleanliness threshold, the method further includes: controlling the roller to rotate at a reduced speed according to a first predetermined rate; during the process of the roller rotating at a reduced speed according to the first predetermined rate, acquiring the rotation speed according to a first predetermined period; and when it is determined that the rotation speed has decreased to a second predetermined speed, controlling the roller to rotate at the second predetermined speed.

[0010] Optionally, the filter self-cleaning method of the washer-dryer combo further includes: during the process of controlling the drum to rotate at the second predetermined speed, counting the first cumulative time of the drum rotating at the second predetermined speed; after the first cumulative time reaches the first predetermined time, controlling the drum to increase its speed at the second predetermined rate; during the process of the drum increasing its speed at the second predetermined rate, acquiring the speed of the drum according to the second predetermined cycle; when it is determined that the speed has increased to the third predetermined speed, controlling the drum to rotate at the third predetermined speed; during the process of the drum rotating at the third predetermined speed, controlling the drum to perform a dehydration operation.

[0011] Optionally, after controlling the drum to perform the dehydration operation, the process includes: triggering the heating component of the washer-dryer to start, thereby controlling the temperature inside the drum to rise until the temperature reaches a second temperature threshold; during the temperature rise inside the drum, controlling the drum to operate at a predetermined rotation-to-stop ratio, wherein the predetermined rotation-to-stop ratio indicates controlling the drum to operate at a rotation-to-stop ratio with more stops / fewer rotations; during the process of controlling the drum to operate at the predetermined rotation-to-stop ratio, calculating a second cumulative duration of the drum operating at the predetermined rotation-to-stop ratio; and when the second cumulative duration reaches a second predetermined duration, controlling the drum to stop operating.

[0012] Optionally, after the current operating information includes exhaust temperature and condensation temperature, and the drum is controlled to perform a dehydration operation, the method further includes: controlling the washer-dryer to continue performing a drying operation according to the current operating state, wherein the current operating state is a pre-stored state of the washer-dryer before it performs the self-cleaning operation.

[0013] According to another aspect of the present invention, a filter self-cleaning device for a washer-dryer combo is also provided, comprising: a first acquisition unit, configured to acquire current operating information of the washer-dryer combo during operation, wherein the current operating information includes at least one of the following: the current drying cycle value of the washer-dryer combo, the exhaust temperature of the washer-dryer combo, and the condensation temperature, wherein the drying cycle value represents the number of times the washer-dryer combo completes the drying process; a first control unit, configured to control the drum of the washer-dryer combo to rotate in a predetermined direction when it is determined, based on the current operating information, that the washer-dryer combo meets the filter self-cleaning condition, wherein the filter self-cleaning condition is used to determine whether the filter of the washer-dryer combo needs to perform a self-cleaning operation; a second control unit, configured to control the drum to rotate at the first predetermined speed when the rotation speed of the drum in the predetermined direction reaches the first predetermined speed; and a first triggering unit, configured to trigger the spraying device of the washer-dryer combo to perform a spraying operation on the filter at a predetermined frequency during the rotation of the drum at the first predetermined speed, so as to perform a self-cleaning operation on the filter until the cleanliness of the filter reaches a cleanliness threshold.

[0014] Optionally, the first control unit includes: an acquisition module, configured to compare the current drying cycle value with a drying cycle threshold to obtain a comparison result, wherein the drying cycle threshold is a threshold determined based on the thickness of the material attached to the filter screen; and a first determination module, configured to determine that the washer-dryer meets the filter screen self-cleaning condition when the comparison result indicates that the current drying cycle has reached the drying cycle threshold.

[0015] Optionally, the first control unit further includes: a first determining module, configured to determine that the washer-dryer meets the filter self-cleaning conditions when the difference between the exhaust temperature and the condensation temperature is greater than a temperature difference threshold, and / or when the condensation temperature is greater than a first temperature threshold.

[0016] Optionally, the filter self-cleaning device of the washer-dryer combo further includes: a second triggering unit, used to trigger the spraying device to stop performing the spraying operation after the filter screen is self-cleaned until the cleanliness of the filter screen reaches a cleanliness threshold; and a third control unit, used to continue to control the drum to rotate at the first predetermined speed to perform secondary cleaning of the filter screen.

[0017] Optionally, the filter self-cleaning device of the washer-dryer combo further includes: a fourth control unit, used to control the drum to rotate at a first predetermined speed after performing self-cleaning on the filter until the cleanliness of the filter reaches a cleanliness threshold; a second acquisition unit, used to acquire the rotational speed at a first predetermined period during the process of the drum rotating at the first predetermined speed; and a fifth control unit, used to control the drum to rotate at the second predetermined speed when it is determined that the rotational speed has dropped to the second predetermined speed.

[0018] Optionally, the filter self-cleaning device of the washer-dryer combo further includes: a first statistical unit, used to count the first cumulative time of the drum rotating at the second predetermined speed during the process of controlling the drum to rotate at the second predetermined speed; a sixth control unit, used to control the drum to increase its speed at the second predetermined rate after the first cumulative time reaches the first predetermined time; a third acquisition unit, used to acquire the speed of the drum according to a second predetermined period during the process of the drum increasing its speed at the second predetermined rate; a seventh control unit, used to control the drum to rotate at the third predetermined speed when it is determined that the speed has increased to the third predetermined speed; and an eighth control unit, used to control the drum to perform a dehydration operation during the process of the drum rotating at the third predetermined speed.

[0019] Optionally, the filter self-cleaning device of the washer-dryer combo further includes: a third triggering unit, used to trigger the heating component of the washer-dryer combo to start after controlling the drum to perform a spin-drying operation, so as to control the temperature inside the drum to rise until the temperature rises to a second temperature threshold; a ninth control unit, used to control the drum to operate at a predetermined rotation-stop ratio during the temperature rise inside the drum, wherein the predetermined rotation-stop ratio represents controlling the drum to operate at a rotation-stop ratio with more stops / fewer rotations; a second statistics unit, used to count the second cumulative time of the drum operating at the predetermined rotation-stop ratio during the process of controlling the drum to operate at the predetermined rotation-stop ratio; and a tenth control unit, used to control the drum to stop operating when the second cumulative time reaches the second predetermined time.

[0020] Optionally, the filter self-cleaning device of the washer-dryer combo further includes: an eleventh control unit, used to control the washer-dryer combo to continue performing the drying operation according to the current operating state after the current operating information includes the exhaust temperature and condensation temperature and the drum is controlled to perform the dehydration operation, wherein the current operating state is the state of the washer-dryer combo before the self-cleaning operation is performed.

[0021] According to another aspect of the present invention, a filter self-cleaning system for a washer-dryer combo is also provided, wherein the filter self-cleaning system for the washer-dryer combo uses any of the above-described filter self-cleaning methods for washer-dryer combos.

[0022] According to another aspect of the present invention, a computer-readable storage medium is also provided, the computer-readable storage medium including a stored program, wherein the program executes any of the above-described methods for self-cleaning the filter of a washer-dryer combo.

[0023] According to another aspect of the present invention, a processor is also provided, the processor being used to run a program, wherein the program, when running, executes any of the above-described methods for self-cleaning the filter of a washer-dryer combo.

[0024] In this embodiment of the invention, during the operation of the washer-dryer combo, the current operating information of the washer-dryer combo is acquired, wherein the current operating information includes at least one of the following: the current drying cycle value of the washer-dryer combo, the exhaust temperature of the washer-dryer combo, and the condensation temperature, wherein the drying cycle value represents the number of times the washer-dryer combo completes the drying process; when it is determined from the current operating information that the washer-dryer combo meets the filter self-cleaning conditions, the drum of the washer-dryer combo is controlled to rotate in a predetermined direction, wherein the filter self-cleaning conditions are used to determine whether the filter of the washer-dryer combo needs to perform a self-cleaning operation; when the rotation speed of the drum in the predetermined direction reaches a first predetermined speed, the drum is controlled to rotate at the first predetermined speed; during the rotation of the drum at the first predetermined speed, the spraying equipment of the washer-dryer combo is triggered to perform a spraying operation on the filter at a predetermined frequency to perform a self-cleaning operation on the filter until the cleanliness of the filter reaches a cleanliness threshold. The above technical solution achieves the goal of cleaning the filter screen by acquiring the current operating information of the washer-dryer and controlling the drum of the washer-dryer to rotate in a predetermined direction and speed when the filter screen self-cleaning conditions are met. It also triggers the spraying equipment to perform spraying operations on the filter screen at a predetermined frequency. This achieves the technical effect of automatically cleaning the filter screen when there is too much fiber attached to the lint filter of the washer-dryer, improving drying efficiency. This solves the technical problem in related technologies where the amount of fiber attached to the lint filter of the washer-dryer increases with the use time and needs to be manually removed, cleaned, and reinstalled in the drying tunnel, which seriously affects the drying efficiency. Attached Figure Description

[0025] The accompanying drawings, which are included to provide a further understanding of the invention and form part of this application, illustrate exemplary embodiments of the invention and, together with their description, serve to explain the invention and do not constitute an undue limitation thereof. In the drawings:

[0026] Figure 1 This is a hardware structure block diagram of a mobile terminal for a filter self-cleaning method of a washer-dryer combo according to an embodiment of the present invention.

[0027] Figure 2 This is a flowchart of a filter self-cleaning method for a washer-dryer combo according to an embodiment of the present invention;

[0028] Figure 3 This is a schematic diagram of the overall structure of a washer-dryer combo according to an embodiment of the present invention;

[0029] Figure 4 This is a schematic diagram of the filter installation position according to an embodiment of the present invention;

[0030] Figure 5 This is a flowchart illustrating the process of determining whether to perform a filter self-cleaning operation based on a drying cycle value, according to an embodiment of the present invention.

[0031] Figure 6 This is a flowchart illustrating how to determine whether to perform a filter self-cleaning operation based on the difference between exhaust temperature and condensation temperature, according to an embodiment of the present invention.

[0032] Figure 7 This is a flowchart of an optional self-cleaning method for the filter of a washer-dryer according to an embodiment of the present invention;

[0033] Figure 8 This is a schematic diagram of the filter self-cleaning device of a washer-dryer combo according to an embodiment of the present invention. Detailed Implementation

[0034] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of the present invention.

[0035] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this invention are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of the invention described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover a non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0036] As described in the background section, in related technologies, the amount of fiber adhering to the lint filter of a washer-dryer combo increases with usage time, requiring manual removal, cleaning, and reinstallation in the drying tunnel, thus severely affecting drying efficiency. To address these shortcomings, embodiments of the present invention provide a method and apparatus for self-cleaning the filter screen of a washer-dryer combo, and a filter screen self-cleaning system.

[0037] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

[0038] The methods and embodiments provided in this invention can be executed on a mobile terminal, a computer terminal, or a similar computing device. Taking running on a mobile terminal as an example, Figure 1This is a hardware structure block diagram of a mobile terminal for a self-cleaning method for the filter of a washer-dryer combo according to an embodiment of the present invention. Figure 1 As shown, a mobile terminal may include one or more ( Figure 1 Only one is shown in the diagram. A processor 102 (which may include, but is not limited to, a microprocessor MCU or a programmable logic device FPGA, etc.) and a memory 104 for storing data are also shown. The mobile terminal may further include a transmission device 106 for communication functions and an input / output device 108. Those skilled in the art will understand that... Figure 1 The structure shown is for illustrative purposes only and does not limit the structure of the mobile terminal described above. For example, the mobile terminal may also include components that are more... Figure 1 The more or fewer components shown, or having the same Figure 1 The different configurations shown.

[0039] The memory 104 can be used to store computer programs, such as application software programs and modules, like the computer program corresponding to the filter self-cleaning method of the washer-dryer combo in this embodiment of the invention. The processor 102 executes various functional applications and data processing by running the computer program stored in the memory 104, thereby implementing the above-described method. The memory 104 may include high-speed random access memory, and may also include non-volatile memory, such as one or more magnetic storage devices, flash memory, or other non-volatile solid-state memory. In some instances, the memory 104 may further include memory remotely located relative to the processor 102, and these remote memories can be connected to the mobile terminal via a network. Examples of the aforementioned networks include, but are not limited to, the Internet, corporate intranets, local area networks, mobile communication networks, and combinations thereof. The transmission device 106 is used to receive or send data via a network. Specific examples of the aforementioned networks may include wireless networks provided by the mobile terminal's communication provider. In one instance, the transmission device 106 includes a network interface controller (NIC), which can be connected to other network devices via a base station to communicate with the Internet. In one example, the transmission device 106 may be a radio frequency (RF) module, which is used to communicate with the Internet wirelessly.

[0040] According to an embodiment of the present invention, a method embodiment for self-cleaning the filter of a washer-dryer combo is provided. It should be noted that the steps shown in the flowchart in the accompanying drawings can be executed in a computer system such as a set of computer-executable instructions. Furthermore, although a logical order is shown in the flowchart, in some cases, the steps shown or described may be executed in a different order than that shown here.

[0041] Figure 2 This is a flowchart of a filter self-cleaning method for a washer-dryer combo according to an embodiment of the present invention, such as... Figure 2 As shown, the method includes the following steps:

[0042] Step S202: During the operation of the washer-dryer combo, the current operating information of the washer-dryer combo is obtained, wherein the current operating information includes at least one of the following: the current drying cycle value of the washer-dryer combo, the exhaust temperature of the washer-dryer combo, and the condensation temperature. The drying cycle value indicates the number of times the washer-dryer combo completes the drying process.

[0043] The following is combined with Figure 3 and Figure 4 The embodiments of the present invention will be described in detail below. Figure 3 This is a schematic diagram of the overall structure of a washer-dryer combo according to an embodiment of the present invention. Figure 4 This is a schematic diagram of the filter installation position according to an embodiment of the present invention.

[0044] like Figure 3 As shown, the aforementioned washer-dryer combo includes a drum assembly, an air duct assembly, a corrugated pipe, a filter screen, and also includes components such as an air outlet 11, a two-piece set 40, a fan 41, an air inlet 42, a corrugated pipe 43, and a spray system 44; Figure 4 As shown, the washer-dryer combo also includes a rear drum component 1, and a filter screen 3 is installed inside the air outlet 11 of the rear drum component 1 and fixed by screws, mainly used to filter dust and lint from clothes.

[0045] Step S204: When it is determined from the current operating information that the washer-dryer meets the filter self-cleaning conditions, the drum of the washer-dryer is controlled to rotate in a predetermined direction. The filter self-cleaning conditions are used to determine whether the filter of the washer-dryer needs to perform a self-cleaning operation.

[0046] Optionally, the above-mentioned predetermined direction can be: clockwise or counterclockwise.

[0047] The direction of the rotation is not specifically limited to clockwise or counterclockwise. The rotation direction of the drum can be determined according to the installation position of the filter screen in the washer-dryer combo. As long as the airflow disturbance generated by the inner drum rotation is perpendicular to the filter screen surface from bottom to top, it is acceptable. In this embodiment of the invention, the drum is rotated in a clockwise direction as an example for further explanation.

[0048] According to the above embodiments of the present invention, in step S204, when the current operating information includes the current drying cycle value, determining that the washer-dryer meets the filter self-cleaning condition based on the current operating information includes: comparing the current drying cycle value with the drying cycle threshold to obtain a comparison result, wherein the drying cycle threshold is a threshold determined based on the thickness of the material attached to the filter; when the comparison result indicates that the current drying cycle has reached the drying cycle threshold, determining that the washer-dryer meets the filter self-cleaning condition.

[0049] The following is combined with Figure 5 The embodiments of the present invention will be described in detail below. Figure 5 This is a flowchart illustrating how to determine whether to perform a filter self-cleaning operation based on a drying cycle value, according to an embodiment of the present invention. Figure 5 As shown, after each drying operation, the washer-dryer determines whether the current cumulative drying cycle value has reached N cycles (the drying cycle threshold determined by the thickness of the material adhering to the filter). If the current drying cycle value has not yet reached N cycles, the same determination is made again when the washer-dryer completes the next drying operation. If the current drying cycle value has reached N cycles, the filter self-cleaning operation is performed first during the next drying operation, and the drying operation is performed after cleaning the filter to restore it to a clean state, so as to avoid affecting the drying efficiency due to excessive fiber adhering to the filter.

[0050] According to the above embodiments of the present invention, in step S204, when the current operating information includes exhaust temperature and condensation temperature, determining that the washer-dryer meets the filter self-cleaning condition based on the current operating information further includes: when the difference between the exhaust temperature and the condensation temperature is greater than a temperature difference threshold, and / or when the condensation temperature is greater than a first temperature threshold, determining that the washer-dryer meets the filter self-cleaning condition.

[0051] The following is combined with Figure 6 The embodiments of the present invention will be described in detail below. Figure 6 This is a flowchart illustrating how to determine whether to perform a filter self-cleaning operation based on the difference between the exhaust temperature and the condensation temperature, according to an embodiment of the present invention. Figure 6 As shown, during the drying operation of the washer-dryer combo, if the difference between the exhaust temperature and the condensing temperature is detected to be greater than the first preset temperature value or the condensing temperature is greater than the second preset temperature value (T), the machine will automatically shut down. 排气 -T 冷凝 ≤T 设1 or T 冷凝 ≥T 设2If the above conditions are not met, the compressor and fan will stop working, and the dehydration process will be forced to begin. Then, the filter screen will be self-cleaned to restore it to a clean state. After cleaning the filter screen, the previous drying operation will continue to be performed to avoid affecting the drying efficiency due to excessive fiber adhesion on the filter screen. If the above conditions are not met, the drying operation will be performed normally.

[0052] Step S206: When the rotational speed of the drum in the predetermined direction reaches the first predetermined speed, control the drum to rotate at the first predetermined speed.

[0053] The following is combined with Figure 7 The embodiments of the present invention will be described in detail below. Figure 7 This is a flowchart of an optional self-cleaning method for the filter of a washer-dryer combo according to an embodiment of the present invention. Figure 7 As shown, after the filter self-cleaning operation begins, the control roller rotates clockwise at an increased speed until it reaches n1 (the first predetermined speed), and then rotates at that speed for t1 seconds.

[0054] In step S208, while the drum is rotating at a first predetermined speed, the spraying equipment of the washer-dryer is triggered to perform a spraying operation on the filter screen at a predetermined frequency to perform a self-cleaning operation on the filter screen until the cleanliness of the filter screen reaches the cleanliness threshold.

[0055] As above Figure 7 As shown, during the rotation of the drum at a speed of n1, the trigger nozzle (spraying device) is activated to perform a spraying operation at a frequency of t2sON / t3sOFF (predetermined frequency) and maintained for t4s.

[0056] To ensure that the water sprayed from the nozzle can hit the filter screen as much as possible, the following settings are made: n1 = 400 RPM, t1 > t4. The rotation speed n1 does not necessarily have to be 400 RPM in this embodiment of the invention, but can be other rotation speeds. It can be adjusted appropriately according to the distance between the filter screen and the inner cylinder, and the nozzle will not be turned on in the subsequent process.

[0057] According to the above embodiments of the present invention, after step S208, that is, after performing a self-cleaning operation on the filter screen until the cleanliness of the filter screen reaches a cleanliness threshold, the method further includes: triggering the spraying device to stop performing the spraying operation; and continuing to control the roller to rotate at a first predetermined speed to perform a secondary cleaning of the filter screen.

[0058] Since the time the drum rotates at speed n1 is longer than the time the nozzle performs the spraying operation, the drum can be used to re-pump the water sprayed by the nozzle back onto the filter screen for auxiliary rinsing. Auxiliary rinsing can effectively clean the dead corners at the bottom of the filter screen and remove stubborn lint, achieving a double cleaning effect.

[0059] According to the above embodiments of the present invention, after step S208, that is, after performing self-cleaning on the filter screen until the cleanliness of the filter screen reaches the cleanliness threshold, the method further includes: controlling the roller to rotate at a reduced speed according to a first predetermined rate; during the process of the roller rotating at a reduced speed according to the first predetermined rate, obtaining the rotation speed according to a first predetermined period; when it is determined that the rotation speed has dropped to a second predetermined speed, controlling the roller to rotate at the second predetermined speed.

[0060] Because a water film forms on the filter screen after the spraying operation is performed by the nozzle, which is not conducive to the airflow in the drying tunnel; therefore, in order to accelerate the rupture of the water film, the roller is first controlled to rotate at a reduced speed according to the first predetermined speed, so that its rotation speed is reduced to n2 (the second predetermined speed), in order to reduce the centrifugal force generated by its high-speed rotation and avoid damage to the clothes.

[0061] According to the above embodiments of the present invention, after step S208, that is, the filter self-cleaning method of the washer-dryer combo further includes: during the process of controlling the drum to rotate at a second predetermined speed, counting the first cumulative time of the drum rotating at the second predetermined speed; after the first cumulative time reaches the first predetermined time, controlling the drum to increase its speed at a second predetermined rate; during the process of the drum increasing its speed at the second predetermined rate, obtaining the drum speed according to a second predetermined cycle; when it is determined that the speed has increased to a third predetermined speed, controlling the drum to rotate at a third predetermined speed; during the process of the drum rotating at the third predetermined speed, controlling the drum to perform a dehydration operation.

[0062] As above Figure 7 As shown, after the control drum rotates at a speed of n2 for t5s (first predetermined time), the control drum restarts at a second predetermined speed until the drum speed reaches n3 (third predetermined speed). The drum rotation at speed n3 generates airflow disturbance and high-frequency vibration perpendicular to the filter screen surface to assist in breaking the water film on the filter screen, reducing the thickness of the water film or breaking a small amount of water film in the mesh, and completing the remaining dewatering process; under normal circumstances, n3 ≥ 800 RPM.

[0063] In the above embodiments of the present invention, after the control drum performs the dehydration operation, the process includes: triggering the heating component of the washer-dryer combo to start, so as to control the temperature inside the drum to rise until the temperature rises to a second temperature threshold; during the temperature rise inside the drum, controlling the drum to operate at a predetermined rotation-to-stop ratio, wherein the predetermined rotation-to-stop ratio indicates that the control drum operates at a rotation-to-stop ratio with more stops / fewer rotations; during the control drum to operate at the predetermined rotation-to-stop ratio, calculating a second cumulative time for the drum to operate at the predetermined rotation-to-stop ratio; and when the second cumulative time reaches the second predetermined time, controlling the drum to stop operating.

[0064] Since the airflow disturbance and high-frequency vibration generated by the high speed of the drum can only reduce the thickness of the water film or break a small number of mesh water films, the complete rupture of the water film still requires the large airflow disturbance generated by the drying fan in the later stage. Therefore, when the dehydration is completed and the heating stage is entered, the drum can be controlled to run with a rotation-stop ratio of more stops / fewer rotations for t6s, so that the airflow circulation resistance formed by the drying fan is smaller, thus making it easier for the water film to rupture.

[0065] According to the above embodiments of the present invention, after controlling the drum to perform the dehydration operation, the current operating information includes the exhaust temperature and the condensation temperature, the method further includes: controlling the washer-dryer to continue performing the drying operation according to the current operating state, wherein the current operating state is the state of the washer-dryer before the self-cleaning operation is performed, which is stored in advance.

[0066] If T is detected during the drying operation of the drum... 排气 -T 冷凝 ≤T 设1 or T 冷凝 ≥T 设2 This forces the filter to self-clean. After the filter cleaning operation is completed, the drying operation needs to be performed according to the pre-stored operation instructions of the washer-dryer combo.

[0067] As can be seen from the above, through the above steps, according to the technical solution provided by the above embodiments of the present invention, the current operating information of the washer-dryer can be obtained during the operation of the washer-dryer combo. The current operating information includes at least one of the following: the current drying cycle value of the washer-dryer combo, the exhaust temperature of the washer-dryer combo, and the condensation temperature. The drying cycle value represents the number of times the washer-dryer combo completes the drying process. When it is determined from the current operating information that the washer-dryer combo meets the filter self-cleaning conditions, the drum of the washer-dryer combo is controlled to rotate in a predetermined direction. The filter self-cleaning conditions are used to determine whether the filter of the washer-dryer combo needs to perform a self-cleaning operation. When the rotation speed of the drum in the predetermined direction reaches a first... When the predetermined speed is reached, the control drum rotates at the first predetermined speed. During the rotation of the drum at the first predetermined speed, the spraying equipment of the washer-dryer is triggered to perform a spraying operation on the filter screen at a predetermined frequency to perform a self-cleaning operation on the filter screen until the cleanliness of the filter screen reaches the cleanliness threshold. This achieves the technical effect of automatically cleaning the filter screen when there is too much fiber attached to the lint filter device of the washer-dryer, thus improving drying efficiency.

[0068] Therefore, the technical solution provided by the above embodiments of the present invention solves the technical problem in the related art that the amount of fiber attached to the lint filter device of the washer-dryer increases with the length of use, and needs to be manually removed, cleaned and then reinstalled in the drying tunnel, which seriously affects the drying efficiency.

[0069] It should be noted that, for the sake of simplicity, the foregoing method embodiments are all described as a series of actions. However, those skilled in the art should understand that this application is not limited to the described order of actions, as some steps may be performed in other orders or simultaneously according to this application. Furthermore, those skilled in the art should also understand that the embodiments described in the specification are preferred embodiments, and the actions and modules involved are not necessarily essential to this application.

[0070] Through the above description of the embodiments, those skilled in the art can clearly understand that the methods according to the above embodiments can be implemented by means of software plus necessary general-purpose hardware platforms. Of course, they can also be implemented by hardware, but in many cases the former is a better implementation method. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk) and includes several instructions to cause a terminal device (which may be a mobile phone, computer, server, or network device, etc.) to execute the methods described in the various embodiments of this application.

[0071] According to embodiments of the present invention, a filter self-cleaning device for a washer-dryer combo is also provided for implementing the above-described filter self-cleaning method for the washer-dryer combo. Figure 8 This is a schematic diagram of the filter self-cleaning device of a washer-dryer combo according to an embodiment of the present invention, as shown below. Figure 8 As shown, the device includes: a first acquisition unit 81, a first control unit 83, a second control unit 85, and a first triggering unit 87. The filter self-cleaning device of this washer-dryer combo will be described in detail below.

[0072] The first acquisition unit 81 is used to acquire the current operating information of the washer-dryer during the operation of the washer-dryer combo. The current operating information includes at least one of the following: the current drying cycle value of the washer-dryer combo, the exhaust temperature of the washer-dryer combo, and the condensation temperature. The drying cycle value represents the number of times the washer-dryer combo completes the drying process.

[0073] The first control unit 83 is used to control the drum of the washer-dryer to rotate in a predetermined direction when it is determined from the current operating information that the washer-dryer meets the filter self-cleaning conditions. The filter self-cleaning conditions are used to determine whether the filter of the washer-dryer needs to perform a self-cleaning operation.

[0074] The second control unit 85 is used to control the drum to rotate at the first predetermined speed when the speed at which the drum rotates in the predetermined direction reaches the first predetermined speed.

[0075] The first triggering unit 87 is used to trigger the spraying equipment of the washer-dryer to perform a spraying operation on the filter screen at a predetermined frequency during the process of the drum rotating at a first predetermined speed, so as to perform a self-cleaning operation on the filter screen until the cleanliness of the filter screen reaches the cleanliness threshold.

[0076] It should be noted that the first acquisition unit 81, the first control unit 83, the second control unit 85 and the first trigger unit 87 mentioned above correspond to steps S202 to S208 in the above embodiments. The four units and the corresponding steps implement the same instances and application scenarios, but are not limited to the content disclosed in the above embodiments.

[0077] As can be seen from the above, in the solution described in the above embodiments of the present invention, the first acquisition unit can acquire the current operating information of the washer-dryer combo during its operation. The current operating information includes at least one of the following: the current drying cycle value of the washer-dryer combo, the exhaust temperature of the washer-dryer combo, and the condensation temperature. The drying cycle value represents the number of times the washer-dryer combo completes the drying process. Then, when the first control unit determines, based on the current operating information, that the washer-dryer combo meets the filter self-cleaning conditions, it controls the drum of the washer-dryer combo to rotate in a predetermined direction. The filter self-cleaning conditions are used to determine whether the filter of the washer-dryer combo needs to perform a self-cleaning operation. Afterwards, the second control unit controls the rotation speed of the drum in the predetermined direction. When the first predetermined speed is reached, the control drum rotates at the first predetermined speed. Finally, the first trigger unit triggers the spraying equipment of the washer-dryer to perform a spraying operation on the filter screen at a predetermined frequency during the rotation of the drum at the first predetermined speed, so as to perform a self-cleaning operation on the filter screen until the cleanliness of the filter screen reaches the cleanliness threshold. This achieves the purpose of cleaning the filter screen by obtaining the current operating information of the washer-dryer and controlling the drum of the washer-dryer to rotate in a predetermined direction and speed when the self-cleaning conditions of the filter screen are met. This achieves the technical effect of automatically cleaning the filter screen when there is too much fiber attached to the lint filter device of the washer-dryer, thus improving the drying efficiency.

[0078] Therefore, the technical solution provided by the above embodiments of the present invention solves the technical problem in the related art that the amount of fiber attached to the lint filter device of the washer-dryer increases with the length of use, and needs to be manually removed, cleaned and then reinstalled in the drying tunnel, which seriously affects the drying efficiency.

[0079] Optionally, the first control unit includes: an acquisition module, used to compare the current drying cycle value with the drying cycle threshold to obtain a comparison result, wherein the drying cycle threshold is a threshold determined based on the thickness of the material attached to the filter screen; and a first determination module, used to determine that the washer-dryer meets the filter screen self-cleaning condition when the comparison result indicates that the current drying cycle has reached the drying cycle threshold.

[0080] Optionally, the first control unit further includes: a first determining module, used to determine that the washer-dryer meets the filter self-cleaning conditions when the difference between the exhaust temperature and the condensation temperature is greater than a temperature difference threshold, and / or when the condensation temperature is greater than a first temperature threshold.

[0081] Optionally, the filter self-cleaning device of the washer-dryer combo further includes: a second triggering unit, used to trigger the spraying equipment to stop spraying after the filter self-cleaning operation is performed until the cleanliness of the filter reaches a cleanliness threshold; and a third control unit, used to continue to control the drum to rotate at a first predetermined speed to perform secondary cleaning of the filter.

[0082] Optionally, the filter self-cleaning device of the washer-dryer combo further includes: a fourth control unit, used to control the drum to rotate at a first predetermined speed after performing self-cleaning on the filter until the cleanliness of the filter reaches a cleanliness threshold; a second acquisition unit, used to acquire the rotation speed according to a first predetermined cycle during the process of the drum rotating at a first predetermined speed; and a fifth control unit, used to control the drum to rotate at a second predetermined speed when it is determined that the rotation speed has dropped to a second predetermined speed.

[0083] Optionally, the filter self-cleaning device of the washer-dryer combo further includes: a first statistical unit, used to count the first cumulative time of the drum rotating at the second predetermined speed during the process of controlling the drum to rotate at the second predetermined speed; a sixth control unit, used to control the drum to increase its speed at the second predetermined rate after the first cumulative time reaches the first predetermined time; a third acquisition unit, used to acquire the drum speed according to a second predetermined cycle during the process of the drum increasing its speed at the second predetermined rate; a seventh control unit, used to control the drum to rotate at the third predetermined speed when it is determined that the speed has increased to the third predetermined speed; and an eighth control unit, used to control the drum to perform a dehydration operation during the process of the drum rotating at the third predetermined speed.

[0084] Optionally, the filter self-cleaning device of the washer-dryer combo further includes: a third triggering unit, used to trigger the heating component of the washer-dryer combo to start after the control drum performs the spin-drying operation, so as to control the temperature inside the drum to rise until the temperature rises to a second temperature threshold; a ninth control unit, used to control the drum to operate at a predetermined turn-to-stop ratio during the temperature rise inside the drum, wherein the predetermined turn-to-stop ratio indicates that the control drum operates at a turn-to-stop ratio with more stops / fewer turns; a second statistics unit, used to count the second cumulative time of the drum operating at the predetermined turn-to-stop ratio during the control drum operating at the predetermined turn-to-stop ratio; and a tenth control unit, used to control the drum to stop operating when the second cumulative time reaches the second predetermined time.

[0085] Optionally, the filter self-cleaning device of the washer-dryer combo also includes: an eleventh control unit, which, after controlling the drum to perform the dehydration operation based on the current operating information including the exhaust temperature and condensation temperature, controls the washer-dryer combo to continue performing the drying operation according to the current operating state, wherein the current operating state is the state of the washer-dryer combo before the self-cleaning operation is performed, which is stored in advance.

[0086] According to another aspect of the present invention, a filter self-cleaning system for a washer-dryer combo is also provided, wherein the filter self-cleaning system for the washer-dryer combo uses any of the above-described filter self-cleaning methods for washer-dryer combos.

[0087] According to another aspect of the present invention, a computer-readable storage medium is also provided, the computer-readable storage medium including a stored program, wherein the program executes the filter self-cleaning method of any of the above-described washer-dryer combos.

[0088] Optionally, in this embodiment, the computer-readable storage medium may be located in any computer terminal in a group of computer terminals in a computer network, or in any communication device in a group of communication devices.

[0089] Optionally, in this embodiment, the computer-readable storage medium is configured to store program code for performing the following steps: during the operation of the washer-dryer combo, acquiring the current operating information of the washer-dryer combo, wherein the current operating information includes at least one of the following: the current drying cycle value of the washer-dryer combo, the exhaust temperature of the washer-dryer combo, and the condensation temperature, wherein the drying cycle value represents the number of times the washer-dryer combo completes the drying process; when it is determined from the current operating information that the washer-dryer combo meets the filter self-cleaning conditions, controlling the drum of the washer-dryer combo to rotate in a predetermined direction, wherein the filter self-cleaning conditions are used to determine whether the filter of the washer-dryer combo needs to perform a self-cleaning operation; when the rotation speed of the drum in the predetermined direction reaches a first predetermined speed, controlling the drum to rotate at the first predetermined speed; during the rotation of the drum at the first predetermined speed, triggering the spraying equipment of the washer-dryer combo to perform a spraying operation on the filter at a predetermined frequency to perform a self-cleaning operation on the filter until the cleanliness of the filter reaches a cleanliness threshold.

[0090] Optionally, in this embodiment, the computer-readable storage medium is configured to store program code for performing the following steps: comparing the current drying cycle value with a drying cycle threshold to obtain a comparison result, wherein the drying cycle threshold is a threshold determined based on the thickness of the material attached to the filter screen; when the comparison result indicates that the current drying cycle has reached the drying cycle threshold, it is determined that the washer-dryer meets the filter screen self-cleaning condition.

[0091] Optionally, in this embodiment, the computer-readable storage medium is configured to store program code for performing the following steps: determining that the washer-dryer meets the filter self-cleaning conditions when the difference between the exhaust temperature and the condensation temperature is greater than a temperature difference threshold, and / or when the condensation temperature is greater than a first temperature threshold.

[0092] Optionally, in this embodiment, the computer-readable storage medium is configured to store program code for performing the following steps: triggering the spraying device to stop performing the spraying operation; continuing to control the drum to rotate at a first predetermined speed to perform secondary cleaning of the filter screen.

[0093] Optionally, in this embodiment, the computer-readable storage medium is configured to store program code for performing the following steps: controlling the roller to rotate at a reduced speed according to a first predetermined rate; acquiring the rotational speed according to a first predetermined period during the process of the roller rotating at a reduced speed according to the first predetermined rate; and controlling the roller to rotate at a second predetermined speed when it is determined that the rotational speed has dropped to a second predetermined speed.

[0094] Optionally, in this embodiment, the computer-readable storage medium is configured to store program code for performing the following steps: during the process of controlling the drum to rotate at a second predetermined speed, counting the first cumulative time of the drum rotating at the second predetermined speed; after the first cumulative time reaches the first predetermined time, controlling the drum to increase its speed at a second predetermined rate; during the process of the drum increasing its speed at the second predetermined rate, acquiring the drum's speed according to a second predetermined period; when it is determined that the speed has increased to a third predetermined speed, controlling the drum to rotate at a third predetermined speed; during the process of the drum rotating at the third predetermined speed, controlling the drum to perform a dehydration operation.

[0095] Optionally, in this embodiment, the computer-readable storage medium is configured to store program code for performing the following steps: triggering the heating element of the washer-dryer combo to start, thereby controlling the temperature inside the drum to rise until the temperature reaches a second temperature threshold; during the temperature rise inside the drum, controlling the drum to operate at a predetermined rotation-to-stop ratio, wherein the predetermined rotation-to-stop ratio indicates controlling the drum to operate at a rotation-to-stop ratio with more stops / fewer rotations; during the control of the drum to operate at the predetermined rotation-to-stop ratio, calculating a second cumulative duration of the drum operating at the predetermined rotation-to-stop ratio; when the second cumulative duration reaches a second predetermined duration, controlling the drum to stop operating.

[0096] Optionally, in this embodiment, the computer-readable storage medium is configured to store program code for performing the following steps: controlling the washer-dryer to continue performing the drying operation according to the current operating state, wherein the current operating state is a pre-stored state of the washer-dryer before performing the self-cleaning operation.

[0097] According to another aspect of the present invention, a processor is also provided, which is used to run a program, wherein the program executes the filter self-cleaning method of any of the above-described washer-dryer combos.

[0098] The sequence numbers of the above embodiments of the present invention are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments.

[0099] In the above embodiments of the present invention, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions of other embodiments.

[0100] In the several embodiments provided in this application, it should be understood that the disclosed technical content can be implemented in other ways. The device embodiments described above are merely illustrative; for example, the division of units can be a logical functional division, and in actual implementation, there may be other division methods. For instance, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the displayed or discussed mutual coupling, direct coupling, or communication connection may be through some interfaces; the indirect coupling or communication connection between units or modules may be electrical or other forms.

[0101] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0102] Furthermore, the functional units in the various embodiments of the present invention can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated unit can be implemented in hardware or as a software functional unit.

[0103] If the integrated unit is implemented as a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, in essence, or the part that contributes to the prior art, or all or part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of the present invention. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, read-only memory (ROM), random access memory (RAM), portable hard drives, magnetic disks, or optical disks.

[0104] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A method for self-cleaning the filter of a washer-dryer combo, characterized in that, include: During the operation of the washer-dryer combo, the current operating information of the washer-dryer combo is acquired, wherein the current operating information includes at least one of the following: the current drying cycle value of the washer-dryer combo, the exhaust temperature of the washer-dryer combo, and the condensation temperature, wherein the drying cycle value represents the number of times the washer-dryer combo completes the drying process; When it is determined from the current operating information that the washer-dryer meets the filter self-cleaning conditions, the drum of the washer-dryer is controlled to rotate in a predetermined direction. The filter self-cleaning conditions are used to determine whether the filter of the washer-dryer needs to perform a self-cleaning operation. When the rotational speed of the roller in the predetermined direction reaches the first predetermined speed, the roller is controlled to rotate at the first predetermined speed. During the rotation of the drum at the first predetermined speed, the spraying equipment of the washer-dryer is triggered to perform a spraying operation on the filter screen at a predetermined frequency to perform a self-cleaning operation on the filter screen until the cleanliness of the filter screen reaches the cleanliness threshold. The process includes, after performing a self-cleaning operation on the filter until the cleanliness of the filter reaches a cleanliness threshold, triggering the spraying device to stop performing the spraying operation; and continuing to control the roller to rotate at the first predetermined speed to perform a secondary cleaning of the filter. The method further includes, after performing self-cleaning on the filter until the cleanliness of the filter reaches a cleanliness threshold, controlling the roller to rotate at a reduced speed according to a first predetermined rate; during the process of the roller rotating at a reduced speed according to the first predetermined rate, acquiring the rotation speed according to a first predetermined period; and when it is determined that the rotation speed has dropped to a second predetermined speed, controlling the roller to rotate at the second predetermined speed. The method further includes: during the process of controlling the drum to rotate at the second predetermined speed, counting the first cumulative time of the drum rotating at the second predetermined speed; after the first cumulative time reaches the first predetermined time, controlling the drum to rotate at a second predetermined speed; during the process of the drum rotating at the second predetermined speed, acquiring the speed of the drum according to a second predetermined period; when it is determined that the speed has increased to a third predetermined speed, controlling the drum to rotate at the third predetermined speed; and during the process of the drum rotating at the third predetermined speed, controlling the drum to perform a dehydration operation.

2. The self-cleaning method for the filter of the washer-dryer combo according to claim 1, characterized in that, When the current operating information includes the current drying cycle value, determining that the washer-dryer combo meets the filter self-cleaning conditions based on the current operating information includes: The current drying cycle value is compared with the drying cycle threshold to obtain the comparison result. The drying cycle threshold is a threshold determined based on the thickness of the material attached to the filter screen. When the comparison result indicates that the current drying cycle has reached the drying cycle threshold, it is determined that the washer-dryer meets the filter self-cleaning condition.

3. The self-cleaning method for the filter of the washer-dryer combo according to claim 1, characterized in that, When the current operating information includes the exhaust temperature and the condensation temperature, determining that the washer-dryer combo meets the filter self-cleaning conditions based on the current operating information further includes: When the difference between the exhaust temperature and the condensation temperature is greater than the temperature difference threshold, and / or when the condensation temperature is greater than the first temperature threshold, it is determined that the washer-dryer combo meets the filter self-cleaning condition.

4. The self-cleaning method for the filter of the washer-dryer combo according to claim 1, characterized in that, After controlling the drum to perform the dewatering operation, the following steps are included: The heating element of the washer-dryer is triggered to start, thereby controlling the temperature inside the drum to rise until the temperature rises to a second temperature threshold. During the temperature rise inside the drum, the drum is controlled to operate at a predetermined rotation-to-stop ratio, wherein the predetermined rotation-to-stop ratio indicates that the drum is controlled to operate at a rotation-to-stop ratio with more stops / fewer rotations; During the process of controlling the roller to operate at the predetermined rotation-stop ratio, the second cumulative duration of the roller operating at the predetermined rotation-stop ratio is calculated. When the second cumulative duration reaches the second predetermined duration, the roller is controlled to stop running.

5. The self-cleaning method for the filter of the washer-dryer combo according to claim 4, characterized in that, After the current operating information includes exhaust temperature and condensation temperature, and the control of the drum to perform dehydration operation is completed, the following is also included: The washer-dryer is controlled to continue performing the drying operation according to the current operating state, wherein the current operating state is a pre-stored state of the washer-dryer before performing the self-cleaning operation.

6. A filter self-cleaning device for a washer-dryer combo, characterized in that, include: The first acquisition unit is used to acquire the current operating information of the washer-dryer during the operation of the washer-dryer combo, wherein the current operating information includes at least one of the following: the current drying cycle value of the washer-dryer combo, the exhaust temperature of the washer-dryer combo, and the condensation temperature, wherein the drying cycle value represents the number of times the washer-dryer combo completes the drying process; The first control unit is used to control the drum of the washer-dryer to rotate in a predetermined direction when it is determined from the current operating information that the washer-dryer meets the filter self-cleaning conditions. The filter self-cleaning conditions are used to determine whether the filter of the washer-dryer needs to perform a self-cleaning operation. The second control unit is used to control the roller to rotate at the first predetermined speed when the rotational speed of the roller in the predetermined direction reaches the first predetermined speed. The first triggering unit is used to trigger the spraying equipment of the washer-dryer to perform a spraying operation on the filter screen at a predetermined frequency during the process of the drum rotating at the first predetermined speed, so as to perform a self-cleaning operation on the filter screen until the cleanliness of the filter screen reaches a cleanliness threshold. The filter self-cleaning device of the washer-dryer combo further includes: a second triggering unit, used to trigger the spraying device to stop the spraying operation after the filter self-cleaning operation is performed until the cleanliness of the filter reaches a cleanliness threshold; a third control unit, used to continue controlling the drum to rotate at the first predetermined speed to perform secondary cleaning of the filter; a fourth control unit, used to control the drum to rotate at a first predetermined speed after the filter self-cleaning operation is performed until the cleanliness of the filter reaches a cleanliness threshold; a second acquisition unit, used to acquire the rotation speed at a first predetermined period during the process of the drum rotating at the first predetermined speed; and a fifth control unit, used to control the drum to stop the spraying operation when it is determined that the rotation speed has dropped to a second predetermined speed. The system comprises: a first statistical unit for controlling the drum to rotate at the second predetermined speed; a sixth control unit for controlling the drum to rotate at the second predetermined speed for a first cumulative duration; a third acquisition unit for acquiring the drum speed at a second predetermined period during the process of controlling the drum to rotate at the second predetermined speed; a seventh control unit for controlling the drum to rotate at the third predetermined speed when the speed is determined to rise to the third predetermined speed; and an eighth control unit for controlling the drum to perform a dehydration operation during the process of the drum rotating at the third predetermined speed.

7. A processor, characterized in that, The processor is used to run a program, wherein the program executes the filter self-cleaning method of the washer-dryer combo according to any one of claims 1 to 5.

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