Washing machine, control method and control device therefor, and storage medium

Abstract

The application provides a washing machine and a control method, a control device and a storage medium thereof. The control method comprises the following steps: after the clothes are taken out after the completion of washing, it is judged whether the drum cleaning is performed for the current washing; if yes, the water level in the outer drum is controlled to reach the cleaning water level, and the inner drum is controlled to rotate to drive the water flow to splash between the inner drum and the outer drum to flush the outer surface of the inner drum and the inner surface of the outer drum; if no, the flushing duration required for cleaning the inner drum and the outer drum for the current washing is calculated. The cleaning of the drum after the completion of washing can reduce the influence of dirt on the cleanliness of the clothes; and the drum cleaning program is not operated in a fixed period, the dirt deposition can be cleaned in a targeted manner, and the cleaning effect is improved.

Description

Technical Field

[0001] This application belongs to the field of washing machine technology, and in particular relates to a washing machine and its control method, control device and storage medium. Background Technology

[0002] With the continuous upgrading of washing machines, such as front-loading washing machines, and the increasing demands of users, consumers have higher requirements for the cleanliness of their clothes. The cleanliness of clothes is not only related to the washing program settings and the amount of detergent used, but also to the cleanliness of the inner and outer drums. There is a gap between the inner and outer drums of the washing machine, and dirty washing water can easily adhere to the outer surface of the inner drum and the inner surface of the outer drum. If not cleaned in time, this dirt can easily re-adhere to the clothes, causing secondary pollution.

[0003] In related technologies, in order to reduce the tediousness of disassembling the washing machine to clean the dirt between the inner and outer drums, a drum cleaning program is usually set for the washing machine. However, since the drum cleaning program is performed at a fixed cycle, there are deviations in the degree of cleanliness for areas with more or less deposited dirt, resulting in poor cleaning effect. Summary of the Invention

[0004] This application provides a washing machine and its control method, control device and storage medium. After washing, the drum is cleaned, which can reduce the impact of dirt on the cleanliness of clothes. Moreover, the drum cleaning program does not run at a fixed cycle, and can be targeted to clean the amount of dirt deposited, thereby improving the cleaning effect.

[0005] This application provides a control method for a washing machine, the washing machine including an inner drum and an outer drum sleeved outside the inner drum, the inner drum being used to hold clothes, the control method including:

[0006] After the washing is complete and the clothes are removed, determine whether a drum cleaning is needed for this wash.

[0007] If so, control the water level in the outer cylinder to reach the clean water level, and control the inner cylinder to rotate so that the water flow can be agitated between the inner cylinder and the outer cylinder to rinse the outer surface of the inner cylinder and the inner surface of the outer cylinder.

[0008] If not, calculate the rinsing time required to clean the inner and outer drums for this wash.

[0009] Optionally, if not, the rinsing time required for cleaning the inner and outer drums in this wash cycle is calculated, including:

[0010] Before washing, the rinsing time for rinsing the outer surface of the inner drum and the inner surface of the outer drum is determined based on at least one of the following: the weight of the clothes in the inner drum, the material of the clothes, and the washing time of the main washing stage.

[0011] Optionally, if so, controlling the water level in the outer cylinder to reach the cleaning water level and controlling the inner cylinder to rotate, thereby causing water to flow and ripple between the inner cylinder and the outer cylinder to rinse the outer surface of the inner cylinder and the inner surface of the outer cylinder, includes:

[0012] Get the cumulative duration of the wash that was not performed before this wash;

[0013] The cleaning time for this drum cleaning is determined based on the required rinsing time and the cumulative time.

[0014] The outer surface of the inner cylinder and the inner surface of the outer cylinder are rinsed according to the specified cleaning duration.

[0015] Optionally, before washing, the rinsing time for rinsing the outer surface of the inner drum and the inner surface of the outer drum is determined based on at least one of the weight of the clothes in the inner drum, the material of the clothes, and the washing time of the main washing stage, including:

[0016] Obtain a first rinsing time calculated based on the weight of the clothes in the inner drum, and a second rinsing time calculated based on the washing time of the main washing stage;

[0017] The third rinsing time is calculated based on the first rinsing time and the second rinsing time.

[0018] Optionally, if the above steps include controlling the water level in the outer cylinder to reach the cleaning water level and controlling the inner cylinder to rotate, so as to drive the water flow to agitate between the inner cylinder and the outer cylinder to rinse the outer surface of the inner cylinder and the inner surface of the outer cylinder, the method further includes:

[0019] Water is introduced into the inner cylinder while water is discharged from the outer cylinder to maintain the water level in the outer cylinder at a clean level.

[0020] Optionally, the step of introducing water into the inner cylinder while simultaneously draining water from the outer cylinder to maintain the water level in the outer cylinder at a clean water level includes:

[0021] Obtain the water inlet flow rate of the inner cylinder;

[0022] The timing of starting and stopping the drainage pump is set according to the inlet water flow rate.

[0023] Optionally, the step of introducing water into the inner cylinder while simultaneously draining water from the outer cylinder to maintain the water level in the outer cylinder at a clean water level further includes:

[0024] The rate of change of the water level in the outer cylinder is obtained;

[0025] The drainage pump's start and stop timing is set according to the rate of change.

[0026] This application embodiment also provides a control device for a washing machine, the washing machine including an inner drum and an outer drum sleeved outside the inner drum, the inner drum being used to hold clothes, and the control device including:

[0027] The judgment unit is used to determine whether to perform drum cleaning after the washing is completed and the clothes are taken out;

[0028] The control unit is used to control the water level in the outer cylinder to reach the clean water level if necessary, and to control the inner cylinder to rotate so as to drive the water flow to ripple between the inner cylinder and the outer cylinder to rinse the outer surface of the inner cylinder and the inner surface of the outer cylinder.

[0029] The calculation unit is used to calculate, if not, the rinsing time required to clean the inner and outer drums for this wash.

[0030] This application also provides a computer-readable storage medium having a computer program stored thereon, which, when executed on the computer, causes the computer to perform the control method for a washing machine as described in any of the preceding claims.

[0031] This application embodiment also provides a washing machine, including:

[0032] The inner tube is used to hold clothing;

[0033] The outer cylinder is fitted over the inner cylinder;

[0034] A processor, electrically connected to the inner drum, is used to execute the control method of the washing machine as described in any of the preceding claims.

[0035] In the washing machine, control method, control device, and storage medium provided in this application embodiment, the drum is cleaned after washing, which can reduce the impact of dirt on the cleanliness of clothes; and the drum cleaning program does not run at a fixed cycle, but can be targeted to clean the amount of dirt deposited, thereby improving the cleaning effect. Attached Figure Description

[0036] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0037] To gain a more complete understanding of this application and its beneficial effects, the following description will be provided in conjunction with the accompanying drawings. In the following description, the same reference numerals denote the same parts.

[0038] Figure 1This is a first flowchart illustrating the control method for a washing machine provided in an embodiment of this application.

[0039] Figure 2 This is a second flowchart illustrating the control method for a washing machine provided in an embodiment of this application.

[0040] Figure 3 This is a third flowchart illustrating the control method for a washing machine provided in an embodiment of this application.

[0041] Figure 4 This is a schematic diagram of the control device for a washing machine provided in an embodiment of this application.

[0042] Figure 5 This is a schematic diagram of the structure of a washing machine provided in an embodiment of this application.

[0043] Figure 6 This is a schematic diagram of the outer cylinder provided in an embodiment of this application.

[0044] Figure 7 This is a schematic diagram of the inner cylinder provided in an embodiment of this application.

[0045] Figure 8 A structural block diagram of a washing machine provided in an embodiment of this application. Detailed Implementation

[0046] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0047] Please see Figure 1 , Figure 1This is a first flowchart illustrating the control method for a washing machine provided in this application embodiment. This application embodiment provides a control method for a washing machine, wherein the washing machine can be a drum-type washing machine or a top-loading washing machine. The washing principles of top-loading washing machines differ from those of drum-type washing machines. A top-loading washing machine has a disc-shaped impeller at the bottom of the drum with protruding ribs. Driven by the impeller, the water flow inside the drum forms a vortex that rotates clockwise and counterclockwise, causing the fabric to rotate and tumble, thus removing dirt from the clothes. A drum-type washing machine is designed to mimic the principle of a hammer striking clothes. The drum rotation generates a large centrifugal force, resulting in repetitive motion, which, combined with the action of detergent and water, cleans the clothes. Of course, washing machines can be of other types, which will not be listed here. This application embodiment uses a drum-type washing machine as an example for illustration and should not be construed as a limitation on the type of washing machine. For example, the washing machine includes an inner drum and an outer drum sleeved outside the inner drum. The inner and outer drums are coaxially arranged, and the inner drum can rotate relative to the outer drum. The inner drum holds the clothes, while the outer drum holds the washing water. For example, the inner drum may have a water passage hole, allowing water from the outer drum to enter the inner drum. The rotation of the inner drum, combined with the detergent, washes the clothes. A washing machine is not limited to these components; it may also include a cabinet, display panel, motor, and shaft, which will not be elaborated upon here. The control methods for a washing machine include:

[0048] 101. After removing the clothes from the washing machine, determine whether to perform a drum cleaning for this wash.

[0049] Because there is a gap between the inner and outer drums, water in the outer drum enters the inner drum through the water passage hole, and water in the inner drum enters the outer drum through its water passage hole. In other words, during the process of washing water flowing between the inner and outer drums, dirt that falls off the clothes will accumulate on the outer surface of the inner drum and / or the inner surface of the outer drum. If it is not cleaned in time, the dirt will re-adhere to the clothes and cause secondary pollution.

[0050] In related technologies, in order to reduce the tediousness of disassembling the washing machine to clean the dirt between the inner and outer drums, a drum cleaning program is usually set for the washing machine. However, since the drum cleaning program is performed at a fixed cycle, there are deviations in the degree of cleanliness for areas with more or less deposited dirt, resulting in poor cleaning effect.

[0051] To reduce the occurrence of the above problems, the embodiments of this application use different cleaning and rinsing durations for different amounts of dirt accumulation when cleaning the cylinder, and the cylinder cleaning is not performed on a fixed cycle, and the duration of each cylinder cleaning is also different, which can improve the cleaning effect of the cylinder.

[0052] For example, after the clothes are removed from the washing machine, it can be determined whether to perform drum cleaning. It is understood that cleaning the drum during the washing process, if the removed dirt is not promptly drained, can easily cause secondary contamination of the clothes. Therefore, in this embodiment, drum cleaning can be performed directly after the washing is complete and the clothes are removed, without needing to consider the issue of contaminating the clothes.

[0053] The process of removing clothes after washing can be automated by setting the washing machine's automatic detection program. For example, it can detect whether the inner drum is empty. If it is empty, it can further determine whether to close the door. If the door is closed, and the user has selected drum cleaning, then the drum cleaning process will begin. If the user has not selected drum cleaning, then drum cleaning will not occur, but the rinsing time required to clean both the inner and outer drums for this wash needs to be calculated. This information will serve as a reference for the drum cleaning time in subsequent washes, or in other words, the time required for subsequent drum cleaning can compensate for the time not spent cleaning.

[0054] In some embodiments, the washing machine can also perform non-periodic drum cleaning by setting the program. For example, after the last drum cleaning, the next drum cleaning can be performed automatically after three washes, and the third drum cleaning can be performed automatically after six washes. Furthermore, the cleaning time for each drum cleaning is not equal.

[0055] 102. If so, control the water level in the outer cylinder to reach the clean water level, and control the inner cylinder to rotate so that the water flow can be agitated between the inner and outer cylinders to rinse the outer surface of the inner cylinder and the inner surface of the outer cylinder.

[0056] If drum cleaning is required, the water level inside the outer drum is controlled to reach the cleaning level. At this level, the inner drum is rotated, causing water to swirl between the inner and outer drums to rinse the outer surface of the inner drum and the inner surface of the outer drum. In essence, controlling the rotation of the inner drum causes water to swirl between the inner and outer drums, rinsing both surfaces. At the cleaning level, the rotation of the inner drum causes the water to perform a cutting motion, thus cleaning the drum.

[0057] The inner cylinder rotation speed can be a relatively high speed, such as greater than or equal to 80 rpm. At this speed, the centrifugal force is greater than the pressure of water in the outer cylinder pressing into the inner cylinder, thereby reducing the amount of water in the outer cylinder entering the inner cylinder and reducing the amount of dirt entering the inner cylinder.

[0058] 103. If not, calculate the rinsing time required to clean the inner and outer drums for this wash.

[0059] If drum cleaning is not required, calculate the rinsing time needed to clean both the inner and outer drums for this wash. This will allow for compensation of the rinsing time during subsequent drum cleaning, matching the appropriate rinsing time to the amount of dirt, thereby improving the cleaning effect on the drum.

[0060] In the washing machine control method provided in this application embodiment, the drum is cleaned after washing, which can reduce the impact of dirt on the cleanliness of clothes; and the drum cleaning program does not run at a fixed cycle, which can target the amount of dirt deposited and improve the cleaning effect.

[0061] The rinsing time can be calculated in the following way:

[0062] The rinsing time for drum cleaning can be determined based on at least one of the following: the weight of the clothes inside the drum, the fabric of the clothes, and the washing time of the main wash cycle. This determines the rinsing time for both the outer and inner surfaces of the inner and outer drums. It's important to note that the dirt between the inner and outer drums is primarily formed by the accumulation of fibers shed from the clothes. Different garment weights correspond to different amounts of fiber shedding; different fabric fabrics require different washing forces, and these forces also result in different amounts of fiber shedding. For example, the washing forces for cotton / linen washes and four-piece bedding washes differ. The washing force is determined based on the fabric fabric when designing the washing program. The washing time also determines the amount of fiber shedding; the longer the wash, the greater the amount of fiber shedding. Therefore, the rinsing time for drum cleaning can be determined based on at least one of the following: the weight of the clothes inside the drum, the fabric of the clothes, and the washing time of the main wash cycle.

[0063] The weight, fabric type, and main wash duration of the garments can all be determined before washing. For example, the weight can be measured after the garments are placed in the drum. Furthermore, by selecting a wash program such as cotton / linen wash or a four-piece bedding set, or by using sensors such as a camera, the fabric type can be determined, and the wash duration of the main wash program can be calculated based on the set program. Therefore, the rinsing time for both the outer and inner surfaces of the drum can be determined before the wash begins.

[0064] This application embodiment determines the rinsing time for cylinder cleaning in at least three ways, which will be described below.

[0065] The first method determines the rinsing time for drum cleaning based on the weight of the clothes. For example, the weight of the clothes in the inner drum is obtained. If the weight is within a preset range, the first rinsing time t1 is calculated based on the clothes weight WF1, the standard weight WF0, the rinsing time t0 corresponding to the standard weight, and a first coefficient k1. For example, t1 = k1 * WF1 / WF0 * t0. The clothes weight WF1 can be obtained by weighing. The standard weight WF0 can be determined experimentally, for example, by setting different clothing materials for the same weight and calibrating a standard weight WF0 for each material. For instance, the standard weight WF0 can be set according to the half-load of cotton material; for example, a 10kg model can be calibrated as 5kg. The rinsing time t0 is determined based on the standard weight and can also be called the standard rinsing time, which can be obtained through multiple experiments. The first coefficient k1 is a parameter coefficient that adjusts the time based on the material of the clothing. For example, the k1 value for cotton clothing is 1, the k1 value for synthetic fiber clothing is between 0.6 and 1, the k1 value for heavy clothing is between 0.8 and 1.5, the k1 value for down jacket clothing is between 0.4 and 0.8, and the k1 value for windproof clothing is between 0.3 and 0.7.

[0066] In some embodiments, the first rinsing time can also be calculated based on the weight of the clothing, the standard weight, and the rinsing time corresponding to the standard weight. The calculation rules are similar to those described above and can be referred to in the above calculations, which will not be repeated here.

[0067] If the weight of the clothing is outside the preset range, the first rinsing time is selected based on the set weight. It is understandable that since the weight of the clothing exceeds the preset range, the calculation cannot be performed using the above formula. Therefore, the first rinsing time can be selected based on the set weight. For example, a mapping table can be set up, where a rinsing time corresponds to a weight exceeding the preset range but within the first range, another rinsing time corresponds to a weight exceeding the preset range but within the second range, and so on, to determine the first rinsing time.

[0068] The second method determines the rinsing time for drum cleaning based on the washing duration of the main wash cycle. For example, the washing duration t3 of the main wash cycle, the material of the clothes in the drum, a first coefficient k1 for time adjustment based on the material, a second coefficient k2 for time adjustment based on the main wash cycle, and a rinsing compensation time t4 can be obtained. The second rinsing time t2 is then calculated based on the washing duration t3, the first coefficient k1, the second coefficient k2, and the rinsing compensation time t4. For example, t2 = k1 * k2 * t3 + t4. The washing duration t3 of the main wash cycle can be obtained from the set program after the material of the clothes is determined. The first coefficient k1 and the second coefficient k2 are coefficients used to adjust the time according to different parameters. For example, k1 is 1 for cotton clothing, 0.6 to 1 for synthetic fiber clothing, 0.8 to 1.5 for heavy clothing, 0.4 to 0.8 for down jackets, and 0.3 to 0.7 for waterproof jackets. The value of k2 can range from 0.015 to 0.2. The rinse compensation time t4 is a compensation value for the rinse time to ensure thorough cleaning of the drum. For example, the rinse compensation time t4 can range from 30 seconds to 2 minutes.

[0069] The determination of the second rinsing time is not limited to the methods described above. For example, the second rinsing time can be calculated based on the washing time of the main washing stage. Alternatively, the second rinsing time can be calculated based on the washing time of the main washing stage, a first coefficient, and a second coefficient.

[0070] The third method determines the rinsing time for drum cleaning based on the weight of the clothes and the washing time of the main wash stage. For example, obtain the first rinsing time t1 calculated based on the weight of the clothes in the drum and the second rinsing time t2 calculated based on the washing time of the main wash stage. Then, calculate the third rinsing time t6 based on the first rinsing time t1 and the second rinsing time t2. Where b1 is a coefficient for adjusting the time based on the weight of the clothes, for example, b1 ranges from 0.01 to 2. b2 is a coefficient for adjusting the time based on the washing duration of the main washing stage, for example, b2 ranges from 0.1 to 1.5. The third rinsing duration t6 can also be calculated using a linear equation.

[0071] The rinsing time for drum cleaning in this embodiment is determined based on at least one of the following: the weight of the clothes, the material of the clothes, and the washing time of the main washing stage. This allows for a more accurate determination of the amount of fibers shed from the clothes, thereby enabling the formulation of an appropriate rinsing time based on the amount of fibers shed, reducing dirt accumulation, and improving the cleaning effect on the drum.

[0072] If the cylinder needs to be cleaned, the cleaning time for the cylinder is calculated.

[0073] For example, please refer to Figure 2 , Figure 2 This is a second flowchart illustrating the control method for a washing machine provided in an embodiment of this application. This application also provides a control method for a washing machine, including:

[0074] 201. Obtain the cumulative duration of the wash that was not performed before this wash.

[0075] The drum can be cleaned continuously, meaning that the drum is cleaned after each wash. In this case, the cumulative time without rinsing between washes can be 0, and if cleaning is performed in this wash, it will not be counted in the cumulative time.

[0076] If the drum is not cleaned continuously, the accumulated time of the uncleaned section can be added to the cleaning time of this drum cleaning to supplement the cleaning of the inner and outer drums. Setting corresponding cleaning times for different amounts of dirt, rather than using a fixed time for cleaning, can improve the cleaning effect of the drum.

[0077] For example, if the drum is not cleaned continuously, the rinsing time required for each drum cleaning can be recorded and accumulated to increase the cumulative time in subsequent drum cleaning sessions.

[0078] 202. Determine the cleaning time for this drum cleaning based on the required rinsing time and the cumulative time.

[0079] The required rinsing time is calculated based on the amount of fibers shed in this wash. The cumulative time is the sum of the rinsing times from previous washes without cleaning the drum, and can be calculated based on the amount of fibers shed in each wash. The cleaning time for this drum cleaning is the sum of the rinsing time and the cumulative time, thus removing both the fibers shed in this wash and any fibers or dirt remaining from previous washes. This ensures precise removal of dirt, reduces residue and buildup, and improves cleaning effectiveness.

[0080] 203. Rinse the outer surface of the inner cylinder and the inner surface of the outer cylinder according to the cleaning time interval.

[0081] The rinsing of the outer surface of the inner cylinder and the inner surface of the outer cylinder can be achieved by the movement of water driven by the rotation of the inner cylinder. In essence, controlling the rotation of the inner cylinder causes water to swirl between the inner and outer cylinders, thus rinsing both surfaces. At the clean water level, the rotation of the inner cylinder drives the water flow in a cutting motion to clean the cylinder.

[0082] The inner cylinder rotation speed can be a relatively high speed, such as greater than or equal to 80 rpm, which can reduce the amount of water entering the inner cylinder from the outer cylinder.

[0083] Rinsing the outer surface of the inner drum and the inner surface of the outer drum according to the cleaning time not only cleans the loose fibers in this wash, but also removes the accumulated dirt over the cumulative time, reducing dirt buildup and thus improving the cleaning effect.

[0084] In the washing machine control method provided in this application embodiment, the cumulative time of the drum not being cleaned is included in the cleaning time of the current drum cleaning, which means that the dirt from the previous period can also be cleaned, reducing the residue of dirt and thus improving the cleaning effect.

[0085] The cleaning time can also be adjusted without increasing the washing time. For example, the working time of the washing program can be obtained, and the running time of the rinsing stage can be adjusted based on the cleaning time and the working time. For instance, a washing program may include a main washing stage, a rinsing stage, and a spin-drying stage. In the main washing stage, the inner drum rotates, agitating the water, and working together with the detergent dissolved in the water to clean the clothes. The rinsing stage removes detergent foam; multiple rinsing cycles can be performed to continuously remove foam and reduce the illusion of uncleanliness caused by foam residue. The spin-drying stage removes water from the clothes. For example, the cleaning time can be compensated for by shortening the rinsing stage, so that the cleaning time does not take up extra time.

[0086] During the cleaning process of the inner and outer cylinders, the cleaning water level in the outer cylinder can be kept in dynamic balance to continuously remove dirt and improve the cleaning effect of the cylinder.

[0087] For example, please refer to Figure 1 and Figure 2 And see Figure 3 , Figure 3 This is a third flowchart illustrating the control method for a washing machine provided in an embodiment of this application. An embodiment of this application also provides a control method for a washing machine, including:

[0088] 301. Water is introduced into the inner cylinder while water is discharged from the outer cylinder to maintain the water level in the outer cylinder at a clean level.

[0089] The embodiments of this application control the cleaning water level to maintain a dynamic balance, that is, while water is being introduced, water is also being drained to continuously remove dirt and improve the cleaning effect on the cylinder.

[0090] For example, water can be introduced into the inner drum while water in the outer drum is discharged to maintain the water level in the outer drum at a clean level. Introducing water into the inner drum can be achieved by spraying water. It is understood that the washing machine can be equipped with a water inlet valve and a spray valve. Opening the water inlet valve allows water to enter the outer drum, while opening the spray valve allows water to spray into the inner drum. For example, during rinsing, the spray nozzles spray water into the inner drum, removing at least some of the foam from the clothes to improve the foam removal rate. In this embodiment, spraying water and water inlet are performed simultaneously. For instance, the flow rate of the spraying water can be the same as the flow rate of the inlet water, so that the water in the inner and outer drums increases synchronously and stably, reducing the phenomenon of dirty water from the outer drum flowing into the inner drum, thereby reducing secondary contamination of the clothes.

[0091] The water in the outer drum can be drained by the drain pump drawing water to the washing machine's drain outlet. However, since the inlet and outlet water flow rates are usually not equal, continuous drainage can easily lead to the water level in the outer drum not reaching the cleaning level, thus affecting the cleaning effect on both the inner and outer drums. Therefore, a drainage sequence can be set for the drain pump to ensure that the water level in the outer drum remains at the cleaning level.

[0092] For example, the first inlet flow rate of the inner drum and the second inlet flow rate of the outer drum can be obtained, and the drainage pump's on / off sequence can be set according to these first and second inlet flow rates. For instance, the first and second inlet flow rates can be equal, causing water in the inner drum to flow towards the outer drum, reducing the probability of dirty water flowing between the inner and outer drums into the inner drum. Alternatively, the first inlet flow rate can be greater than the second inlet flow rate, also reducing the probability of dirty water flowing between the inner and outer drums into the inner drum, thereby reducing secondary contamination of clothing. Because the first inlet flow rate is greater than or equal to the second inlet flow rate, the first inlet flow rate of the inner drum can be used as a reference coefficient for the inlet flow rate.

[0093] For example, if the first inlet water flow rate is greater than or equal to the set flow rate, the drain pump is controlled to start and stop according to a first start-stop ratio. The set flow rate can be the drainage flow rate. If the second inlet water flow rate is less than the set flow rate, the drain pump is controlled to start and stop according to a second start-stop ratio, which is less than the first start-stop ratio. The start-stop ratio is the ratio of the drain pump's on-time to its off-time; multiple intervals of start-stop ratios can constitute a drainage sequence. It should be noted that setting the drain pump's drainage sequence based on the inlet water flow rate—if the inlet water flow rate is faster, the drain pump's on-time is longer; if the inlet water flow rate is slower, the drain pump's on-time is shorter—ensures that the inlet and outlet water volumes remain consistent per unit time, maintaining a dynamic balance in the clean water level within the outer cylinder. This ensures that the water at the clean water level in the rotating inner cylinder performs a cutting motion for cleaning, and continuously removes dirt, reducing the problem of dirt accumulating on the cylinder and becoming difficult to clean, thereby improving the cleaning effect.

[0094] In some embodiments, the starting and stopping sequence of the drainage pump can also be set based on the rate of change of the water level in the outer cylinder. For example, the rate of change of the water level in the outer cylinder can be obtained by calculating the change in water level height over a set period, and the starting and stopping sequence of the drainage pump can be set according to the rate of change. For example, if the water level changes rapidly, the drainage sequence can be accelerated, that is, the start-stop ratio can be increased; if the water level changes slowly, the drainage sequence can be slowed down, that is, the start-stop ratio can be decreased.

[0095] It should be noted that by optimizing the control sequence of the drainage pump, using a combination of water level control and fixed timing control, excessive water level fluctuations during high-speed rotation can be avoided, which could lead to excessively low or high cleaning water levels and affect the rinsing effect.

[0096] 302. Control the rotation of the inner cylinder to drive the water flow to ripple between the inner and outer cylinders to rinse the outer surface of the inner cylinder and the inner surface of the outer cylinder.

[0097] The rinsing of the outer surface of the inner cylinder and the inner surface of the outer cylinder is achieved by the movement of water driven by the rotation of the inner cylinder. In essence, controlling the rotation of the inner cylinder causes water to swirl between the inner and outer cylinders, thus rinsing both surfaces. At the clean water level, the rotation of the inner cylinder drives the water flow in a cutting motion to clean the cylinder. The inner cylinder can rotate at a relatively high speed, such as 80 rpm or higher, to reduce the amount of water entering the inner cylinder from the outer cylinder.

[0098] In the washing machine control method provided in this application embodiment, the inner drum is rotated at the clean water level to drive the water flow between the inner drum and the outer drum to rinse the outer surface of the inner drum and the inner surface of the outer drum, thereby cleaning the deposited dirt; by maintaining a dynamic clean water level through water inlet and water outlet, the required water level for rinsing can be provided on the one hand, and the dirt can be continuously discharged on the other hand, reducing the risk of repeated dirt accumulation and improving the cleaning effect.

[0099] To facilitate better implementation of the washing machine control method of this application embodiment, this application embodiment also provides a washing machine control device. Please refer to... Figure 4 , Figure 4 This is a schematic diagram of the control device for a washing machine provided in an embodiment of this application. The control device 500 includes a judgment unit 501, a control unit 502, and a calculation unit 503. The washing machine can be a drum-type or a pulsator-type washing machine. It includes an inner drum and an outer drum sleeved around the inner drum. The inner and outer drums are coaxially aligned, and the inner drum can rotate relative to the outer drum. The inner drum carries clothes, and the outer drum holds washing water. For example, the inner drum may have a water passage hole, through which water from the outer drum enters the inner drum. With the rotation of the inner drum and the washing liquid, the clothes are washed. The washing machine is not limited to the above-mentioned components; for example, it may also include a cabinet, a display panel, a motor, a rotating shaft, etc., which will not be elaborated here.

[0100] The judgment unit 501 is used to determine whether to perform drum cleaning after the washing is completed and the clothes are taken out.

[0101] Control unit 502 is used to control the water level in the outer cylinder to reach the clean water level if necessary, and to control the inner cylinder to rotate so that the water flow can be agitated between the inner and outer cylinders to rinse the outer surface of the inner cylinder and the inner surface of the outer cylinder.

[0102] The calculation unit 503 is used to calculate, if not, the rinsing time required to clean the inner and outer drums for this wash.

[0103] All of the above technical solutions can be combined in any way to form optional embodiments of this application, and will not be described in detail here.

[0104] As can be seen from the above, in the control device 500 of the washing machine provided in this application embodiment, cleaning the drum after washing can reduce the impact of dirt on the cleanliness of clothes; and the drum cleaning program does not run in a fixed cycle, allowing for targeted cleaning based on the amount of deposited dirt, thus improving the cleaning effect. By rinsing the outer surface of the inner drum and the inner surface of the outer drum in each washing process, rather than cleaning in a fixed cycle, dirt deposition can be reduced, improving the cleaning effect; and the rinsing time for drum cleaning is determined based on at least one of the weight of the clothes, the material of the clothes, and the washing time of the main washing stage, which can improve the precise cleaning of deposited dirt, rather than using a uniform cleaning time for different types of dirt, thus improving the cleaning effect of dirt.

[0105] Accordingly, this application also provides a washing machine, which can be a front-loading washing machine or a top-loading washing machine. Figures 5 to 7 As shown, Figure 5 This is a schematic diagram of the structure of a washing machine provided in an embodiment of this application. Figure 6 This is a schematic diagram of the outer cylinder provided in an embodiment of this application. Figure 7 This is a schematic diagram of the inner drum structure provided in an embodiment of this application. This application uses a drum-type washing machine as an example for illustration, and should not be construed as a limitation on the type of washing machine. The washing machine 600 may include an inner drum 601 and an outer drum 602. The outer drum 602 is sleeved outside the inner drum 601. The inner drum 601 and outer drum 602 are coaxially arranged, and the inner drum 601 can rotate relative to the outer drum 602. The inner drum 601 is used to hold clothes, and the outer drum 602 is used to hold washing water. For example, the inner drum 601 may be provided with a water passage hole. Water in the outer drum 602 enters the inner drum 601 through the water passage hole, and the clothes are washed by the rotation of the inner drum 601 and the washing liquid. The inner wall of the rear drum of the outer drum 602 may be made of a smooth material to reduce dirt accumulation on the outer drum 602. The washing machine 600 may also include a water inlet valve, a water inlet pipe, a spray valve, a spray pipe, and a drain pump. The water inlet valve controls the flow of water, and the water inlet pipe is connected to a water source. When the water inlet valve is open, water enters the outer drum 602 through the water inlet pipe. The spray valve controls the flow of spray water, and when the spray valve is open, water is sprayed into the inner drum 601 through the spray pipe. The drain pump controls the flow of drainage, and when the drain pump is activated, water in the outer drum 602 can be drained. The washing machine 600 is not limited to the above-mentioned components. For example, the washing machine 600 may also include components such as the cabinet, display panel, motor, and shaft (not shown in the figure), which are not specifically limited here.

[0106] Please see Figure 8 , Figure 8The structural block diagram of the washing machine provided in this application embodiment shows that the washing machine 600 may further include a processor 604 with one or more processing cores, a memory 605 with one or more computer-readable storage media, and a computer program stored in the memory 605 and executable on the processor 604. The processor 604 and the memory 605 are electrically connected. Those skilled in the art will understand that the structure of the washing machine 600 shown in the figure does not constitute a limitation on the washing machine, and may include more or fewer components than shown, or combine certain components, or have different component arrangements.

[0107] The processor 604 is the control center of the washing machine 600. It connects various parts of the washing machine 600 through various interfaces and lines. For example, the processor 604 can be electrically connected to the inner drum 601, the water inlet valve, the spray valve and the drain pump. By running or loading the software program and / or module stored in the memory 605, and calling the data stored in the memory 605, it executes various functions of the washing machine 600 and processes data, thereby performing overall monitoring of the washing machine 600.

[0108] In this embodiment, the processor 604 in the washing machine 600 loads the instructions corresponding to the processes of one or more applications into the memory 605 according to the following steps, and the processor 604 runs the applications stored in the memory 605 to achieve various functions:

[0109] After the washing is complete and the clothes are removed, determine whether a drum cleaning is needed for this wash.

[0110] If so, control the water level in the outer cylinder to reach the clean water level, and control the inner cylinder to rotate so that the water flow can be agitated between the inner and outer cylinders to rinse the outer surface of the inner cylinder and the inner surface of the outer cylinder.

[0111] If not, calculate the rinsing time required to clean the inner and outer drums for this wash.

[0112] For details on the implementation of each of the above operations, please refer to the previous examples, which will not be repeated here.

[0113] Those skilled in the art will understand that all or part of the steps in the various methods of the above embodiments can be performed by instructions, or by instructions controlling related hardware. These instructions can be stored in a computer-readable storage medium and loaded and executed by a processor.

[0114] Therefore, embodiments of this application provide a computer-readable storage medium storing a plurality of computer programs that can be loaded by a processor to execute the steps in the washing machine control method provided in embodiments of this application.

[0115] The storage medium may include various media capable of storing program code, such as read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0116] Since the computer program stored in the storage medium can execute the steps in the washing machine control method provided in the embodiments of this application, it can achieve the beneficial effects that any washing machine control method provided in the embodiments of this application can achieve, as detailed in the previous embodiments, and will not be repeated here.

[0117] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0118] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more features.

[0119] The washing machine and its control method, control device and storage medium provided in the embodiments of this application have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this application. The description of the above embodiments is only for the purpose of helping to understand the method and core ideas of this application. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this application. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. A control method for a washing machine, the washing machine comprising an inner drum and an outer drum sleeved outside the inner drum, the inner drum being used to hold clothes, characterized in that, The control method includes: After the washing is complete and the clothes are removed, determine whether a drum cleaning is needed for this wash. If so, control the water level in the outer drum to reach the cleaning level, and control the inner drum to rotate so that the water flow can agitate between the inner drum and the outer drum to rinse the outer surface of the inner drum and the inner surface of the outer drum, including: obtaining the cumulative time of no rinsing before this wash; determining the cleaning time for this drum cleaning based on the required rinsing time and the cumulative time; rinsing the outer surface of the inner drum and the inner surface of the outer drum according to the cleaning time; If not, calculate the rinsing time required to clean the inner and outer drums for this wash, including: before washing, determining the rinsing time for rinsing the outer surface of the inner drum and the inner surface of the outer drum based on at least one of the weight of the clothes in the inner drum, the material of the clothes, and the washing time of the main washing stage.

2. The control method according to claim 1, characterized in that, Before washing, the rinsing time for rinsing the outer surface of the inner drum and the inner surface of the outer drum is determined based on at least one of the following: the weight of the clothes in the inner drum, the material of the clothes, and the washing time of the main washing stage. Obtain a first rinsing time calculated based on the weight of the clothes in the inner drum, and a second rinsing time calculated based on the washing time of the main washing stage; The third rinsing time is calculated based on the first rinsing time and the second rinsing time.

3. The control method according to claim 1, characterized in that, If so, controlling the water level in the outer cylinder to reach the clean water level and controlling the inner cylinder to rotate, so as to drive the water flow to agitate between the inner cylinder and the outer cylinder to rinse the outer surface of the inner cylinder and the inner surface of the outer cylinder, further comprising: Water is introduced into the inner cylinder while water is discharged from the outer cylinder to maintain the water level in the outer cylinder at a clean level.

4. The control method according to claim 3, characterized in that, The process of introducing water into the inner cylinder while simultaneously draining water from the outer cylinder to maintain the water level in the outer cylinder at a clean water level includes: Obtain the water inlet flow rate of the inner cylinder; The timing of starting and stopping the drainage pump is set according to the inlet water flow rate.

5. The control method according to claim 3 or 4, characterized in that, The method of introducing water into the inner cylinder while simultaneously draining water from the outer cylinder to maintain the water level in the outer cylinder at a clean water level further includes: The rate of change of the water level in the outer cylinder is obtained; The drainage pump's start and stop timing is set according to the rate of change.

6. A control device for a washing machine, the washing machine comprising an inner tub and an outer tub sleeved outside the inner tub, the inner tub being used to hold clothes, characterized in that, The control device includes: The judgment unit is used to determine whether to perform drum cleaning after the washing is completed and the clothes are taken out; A control unit, configured to, if applicable, control the water level in the outer drum to reach the cleaning water level and control the inner drum to rotate, thereby causing water to flow and ripple between the inner drum and the outer drum to rinse the outer surface of the inner drum and the inner surface of the outer drum, comprising: acquiring the cumulative duration of no rinsing performed before this wash; determining the cleaning duration for this drum cleaning based on the required rinsing duration and the cumulative duration; and rinsing the outer surface of the inner drum and the inner surface of the outer drum according to the cleaning duration; The calculation unit is used to calculate, if not, the rinsing time required to clean the inner and outer drums for this wash, including: before washing, determining the rinsing time for rinsing the outer surface of the inner drum and the inner surface of the outer drum based on at least one of the weight of the clothes in the inner drum, the material of the clothes, and the washing time of the main washing stage.

7. A computer-readable storage medium having a computer program stored thereon, characterized in that, When the computer program is executed on the computer, it causes the computer to perform the control method for the washing machine as described in any one of claims 1-5.

8. A washing machine, characterized in that, include: The inner tube is used to hold clothing; The outer cylinder is fitted over the inner cylinder; A processor, electrically connected to the inner drum, is configured to execute the control method of the washing machine as described in any one of claims 1-5.

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