Laundry treating apparatus and dehydration control method, device thereof

Abstract

The present application provides a clothes treatment device and a dehydration control method and device thereof. The clothes treatment device is provided with a drainage stage and a dehydration stage, and different rinsing and dehydration processes are provided according to different amounts of foam. The dehydration control method comprises: identifying the amount of foam in the drum in the drainage stage and the dehydration stage; and executing the corresponding rinsing and dehydration process based on the amount of foam in the drum. Through the dehydration control method, the amount of foam in the drum can be monitored in the drainage stage and the dehydration stage, and the amount of foam is divided into multiple stages according to the detection result. Different rinsing and dehydration processes are executed for different stages of the amount of foam, which can ensure that the clothes are completely rinsed clean, save time and water consumption, and improve the utilization rate of energy efficiency.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of clothes processing equipment, and particularly relates to a clothes processing equipment and a dehydration control method and device thereof. BACKGROUND

[0002] With the improvement of people's living standards, the user group's requirements for the washing machine have not only met the basic washing and convenience, but also increasingly concerned about the energy consumption of water and electricity consumption of the washing machine. Especially in today's green energy advocacy, the energy consumption of the washing machine is too large, which is also a not small burden for the user. At the same time, in the fast-paced and efficient era, although the existing washing machine has various washing modes, the time spent on washing clothes is really a lot, therefore, shortening the washing time and reducing the washing energy consumption has become an urgent need of the user in the washing process. However, due to the over-addition of the user's detergent, the inaccuracy of the automatic feeding device and other reasons, it may cause too much foam in the washing process, not only makes the clothes difficult to rinse clean, but also easily triggers the washing machine failure, affecting the user's washing experience. SUMMARY

[0003] Therefore, the present application provides a clothes processing equipment and a dehydration control method and device thereof, to solve the problem that the current clothes processing equipment needs to go through washing, rinsing, dehydration and other processes in the washing process, and each process not only takes a lot of time, but also consumes a lot of water and electricity.

[0004] To solve the above technical problems, the first aspect of the present application provides a dehydration control method of a clothes processing equipment, the clothes processing equipment comprising a washing drum, the washing drum being provided with a spraying assembly, the clothes processing equipment being provided with a drainage stage and a dehydration stage, the clothes processing equipment being provided with different rinsing and dehydration processes according to different foam amounts, the dehydration control method comprising:

[0005] In the drainage stage and the dehydration stage, the foam amount in the drum is identified;

[0006] Based on the foam amount in the drum, a corresponding rinsing and dehydration process is executed.

[0007] Further optionally, in the dehydration stage, the foam amount in the drum is identified, comprising:

[0008] Before the motor speed reaches the dehydration speed, the motor operating power is monitored;

[0009] The interval of the motor operating power is determined to determine the stage of the foam amount in the drum.

[0010] Further optionally, in the process of determining the eccentricity of the motor at the first speed, the interval of the motor operating power is determined to determine the stage of the foam amount in the drum, comprising:

[0011] determining whether the motor operating power is less than or equal to a first preset power;

[0012] If not, it is determined that the amount of foam in the tub is in a high-foam stage.

[0013] Further optionally, during the process of accelerating the motor from the first rotating speed to the dewatering rotating speed, the interval of the motor operating power is determined to determine the stage of the amount of foam in the tub, comprising:

[0014] S1, determining whether the motor operating power is less than or equal to a first preset power; if yes, it is determined that the amount of foam in the tub is in a low-foam stage; if not, S2 is executed;

[0015] S2, determining whether the motor operating power is less than or equal to a second preset power; if yes, it is determined that the amount of foam in the tub is in a medium-foam stage; if not, it is determined that the amount of foam in the tub is in a high-foam stage.

[0016] Further optionally, during the dewatering stage, the amount of foam in the tub is identified, comprising:

[0017] monitoring the remaining water level in the tub and the corresponding dewatering time;

[0018] identifying the amount of foam in the tub according to the remaining water level in the tub and the corresponding dewatering time.

[0019] Further optionally, identifying the amount of foam in the tub according to the remaining water level in the tub and the corresponding dewatering time, comprising:

[0020] S3, determining whether the remaining water level in the tub reaches an empty-tub water level; if not, S4 is executed;

[0021] S4, determining whether the dewatering time is less than or equal to a preset dewatering time; if not, it is determined that the amount of foam in the tub is in a high-foam stage.

[0022] Further optionally, the laundry treatment apparatus is provided with a first peeling process, and a corresponding peeling process is executed based on the amount of foam in the tub, comprising:

[0023] when the amount of foam in the tub is in a high-foam stage, the first peeling process is executed;

[0024] The first peeling process comprises: first performing a defoaming treatment, then controlling the washing tub to dewater at a first rotating speed, then controlling the washing tub to dewater at a dewatering rotating speed, and controlling the spraying assembly to continuously spray for a first preset time length;

[0025] wherein V1 < V2, V1 represents the first rotating speed, and V2 represents the dewatering rotating speed.

[0026] Further optionally, the defoaming treatment comprises:

[0027] control the washing tub to stand for a second preset time length, so that the amount of foam in the tub is self-eliminated;

[0028] control the drain pump to open, and control the spraying assembly to be intermittently opened for a third preset time length, so as to flush the amount of foam in the tub.

[0029] Further optionally, the laundry treatment apparatus is provided with a second peeling process, and corresponding peeling processes are performed based on the amount of foam in the tub, including:

[0030] when the amount of foam in the tub is in the low-foam stage, the second peeling process is performed;

[0031] the second peeling process includes: first controlling the washing tub to perform dehydration at a fourth rotational speed, then controlling the washing tub to perform dehydration at a third rotational speed, and controlling the spraying assembly to continuously spray for a fourth preset time length;

[0032] then controlling the washing tub to perform final dehydration at the fourth rotational speed;

[0033] wherein V2 < V3 < V4, V3 represents the third rotational speed, and V4 represents the fourth rotational speed.

[0034] Further optionally, based on the amount of foam in the tub, corresponding peeling processes are performed, and the method further includes:

[0035] when the amount of foam in the tub is in the medium-foam stage, first controlling the washing tub to perform a rinse to remove part of the amount of foam in the tub, and then performing the second peeling process.

[0036] Further optionally, controlling the washing tub to perform a rinse includes:

[0037] controlling the motor to drive the washing tub to rotate at a fifth rotational speed, and introducing a preset amount of washing water into the washing tub to rinse the laundry;

[0038] wherein V0 < V1, V0 represents the fifth rotational speed.

[0039] Further optionally, after the second peeling process is performed, the dehydration control method further includes:

[0040] controlling the washing tub to perform final dehydration at the fourth rotational speed.

[0041] The second aspect of the application provides a dehydration control device of a laundry treatment apparatus, which includes one or more processors and a non-transitory computer-readable storage medium storing program instructions, and when the one or more processors execute the program instructions, the one or more processors are used to implement the dehydration control method of any one of the first aspect.

[0042] The third aspect of the application provides a laundry treatment apparatus, which adopts the dehydration control method of any one of the first aspect, or includes the dehydration control device of the second aspect.

[0043] Compared with the prior art, the present application has the following beneficial effects:

[0044] The present application removes the rinsing process in laundry, removes the rinsing clothes through spraying, greatly reduces the laundry running time, and saves water and electricity. The present application monitors the amount of foam in the barrel during the drainage and dehydration stages, divides the amount of foam into multiple stages according to the detection results, and performs different rinsing processes in different foam stages, which can ensure that the clothes are completely rinsed and cleaned, save time and water, and improve the utilization rate of energy efficiency.

[0045] The specific embodiments of the present application will be further described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS

[0046] The accompanying drawings, which are part of the present application, serve to provide a further understanding of the present application, and the schematic embodiments of the present application and their descriptions serve to explain the present application, but do not constitute an improper limitation on the present application. Obviously, the accompanying drawings described below are only some embodiments, and other drawings can be obtained by those skilled in the art without creative labor. In the drawings:

[0047] Figure 1 An appearance view of a laundry treatment apparatus according to an embodiment of the present application is shown.

[0048] Figure 2 An axial cross-sectional view of a laundry treatment apparatus according to an embodiment of the present application is shown.

[0049] Figure 3 A flowchart of a dehydration control method of a laundry treatment apparatus according to an embodiment of the present application is shown.

[0050] Figure 4 A rinsing judgment flowchart of a dehydration stage according to an embodiment of the present application is shown.

[0051] Figure 5 A rinsing judgment flowchart of a drainage stage according to an embodiment of the present application is shown.

[0052] Figure 6 A flowchart of a first rinsing process according to an embodiment of the present application is shown.

[0053] Figure 7 A flowchart of a second rinsing process according to an embodiment of the present application is shown.

[0054] 1 - detergent box, 2 - display screen, 3 - door body, 4 - drainage pump, 5 - shell, 6 - spray head, 7 - spray water droplets, 8 - axial barrel bottom.

[0055] It should be noted that the drawings and the written description are not intended to limit the scope of the present application in any way, but are merely to illustrate the concept of the present application to those skilled in the art by reference to a particular embodiment. DETAILED DESCRIPTION

[0056] In the description of the present application, it should be noted that the positions or position relationships indicated by the terms "in", "out", etc. are based on the positions or position relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as limiting the present application in terms of indicating or implying that the devices or elements referred to must have a particular position, be constructed and operated in a particular position, and therefore cannot be understood as limiting the present application.

[0057] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection", "contact", "communication" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0058] To solve the problem that the current clothes processing equipment needs to go through washing, rinsing, dehydration and other processes in the washing process, and each process not only takes a lot of time, but also consumes a lot of water and electricity. At the same time, during the washing process of the washing machine, the washing liquid penetrates into the clothes fibers, and it is difficult to remove the residual washing liquid contained in the clothes during the washing process, especially for the drum washing machine, it is more difficult to rinse the clothes; and these residual washing liquid not only easily damages the clothes, but also easily causes bacterial infection of sensitive groups. The first aspect of the embodiment provides a dehydration control method of clothes processing equipment. The clothes processing equipment includes a pulsator washing machine, a drum washing machine, etc.

[0059] Taking a drum washing machine as an example, Figure 1 It is the appearance diagram of the clothes processing equipment of the embodiment. In order to further illustrate the technical scheme of the present application, first, the clothes processing equipment will be described in combination with Figure 1 The clothes processing equipment includes a washing tub, a spraying assembly is arranged in the washing tub, the spraying assembly includes a spraying head 6, the clothes processing equipment further includes a detergent box 1, a display screen 2, a door body 3, a drainage pump 4, and an outer shell 5. The detergent box 1 is used for adding detergent. The clothes processing equipment is provided with a drainage stage and a dehydration stage, and the clothes processing equipment is provided with different rinsing and dehydration processes according to different foam amounts. The drainage pump 4 is used for draining water during the drainage and dehydration processes.

[0060] The dehydration control method of the clothes processing equipment of the embodiment will be described below in combination with the drawings.

[0061] In combination Figure 3 , the dehydration control method comprises steps A1-A2, wherein:

[0062] A1, in the drainage phase and the dehydration phase, identifying the amount of foam in the tub;

[0063] A2, based on the amount of foam in the tub, performing a corresponding spin-dry process;

[0064] Wherein, the spin-dry process is a process of controlling the motor to drive the washing tub to rotate to dehydrate the clothes in the tub, and controlling the spraying assembly to spray water into the washing tub to spray and rinse the clothes in the tub. Specifically, Figure 2 is a cross-sectional view of the laundry treatment device of the embodiment of the present application. As Figure 2 shown, in the spin-dry process, water flows are sprayed out of the spray head 6, and the spray water droplets 7 fall on the clothes on the inner tub axial bottom 8 via the spray path to spray and rinse the clothes.

[0065] The dehydration control method of the embodiment removes the rinsing process during washing, and uses spray spin-dry to rinse the clothes, i.e. rinses the clothes by spraying during the dehydration process, rinses and dehydrates at the same time, cooperates with the variable rhythm spin-dry scheme, can rinse the clothes completely, saves time due to the removal of multiple rinsing in the original program, and saves water and electricity. At the same time, the amount of foam in the drum is detected in the drainage phase and the dehydration phase, the amount of foam is divided into multiple stages according to the detection result, different spin-dry processes are performed in different foam stages, which can ensure that the clothes are completely rinsed and cleaned, save time and water, and improve the utilization rate of energy efficiency.

[0066] In the washing process, excessive detergent causes excessive foam, and the clothes are difficult to rinse clean, and high-foam failure is easily triggered. The traditional foam detection process is not only cumbersome, but also difficult to ensure accuracy, and a large amount of time is wasted if multiple repeated detections are performed; when entering the defoaming program, only clear water is sprayed to defoam, the defoaming method is single, and the effect is poor.

[0067] Further optionally, in step A1, in the dehydration phase, the amount of foam in the tub is identified, comprising steps A11-A12, wherein:

[0068] A11, before the motor speed reaches the dehydration speed, monitoring the motor operating power;

[0069] A12, determining the interval of the motor operating power to determine the stage of the amount of foam in the tub.

[0070] Figure 4 is a spin-dry judgment flowchart of the dehydration phase of the embodiment. Specifically, refer to Figure 4, after entering the dehydration stage, eccentricity detection needs to be performed first, and after judging that the clothes are uniformly attached to the inner drum wall, the speed can continue to be increased, and this eccentricity detection and speed increasing process can accurately judge the amount of foam in the clothes by detecting the power of the motor. The more the foam, the greater the power. In this embodiment, when the motor performs eccentricity detection at V1 speed, the inner drum speed is low and stable at this time, and during eccentricity detection, the motor power is preferably collected every 5s (not limited to 5s), the average power of the process is calculated, and the interval in which the average power is located is further judged to determine the stage of the foam in the tub. In this way, the accuracy of foam amount detection can be improved.

[0071] Further optionally, during the process of measuring eccentricity of the motor at the first speed, step A12 comprises:

[0072] A121, judging whether the motor operating power is less than or equal to the first preset power; if not, performing A122;

[0073] A122, determining that the amount of foam in the tub is in the high foam stage.

[0074] Specifically, referring to Figure 4 During the eccentricity measurement period, the motor power is collected every 5s, the average power of the process is calculated, and compared with the preset value P1. When P>P1, at this time, the motor exceeds the first preset power P1 at a lower eccentricity measurement speed, indicating that the amount of foam in the clothes is large, i.e. belongs to the high foam stage, and the speed continues to increase to dehydration, which is easy to trigger a fault due to the rapid increase in power. Therefore, defoaming needs to be performed first, and after completing defoaming, the dehydration process is re-entered.

[0075] Further optionally, during the process of controlling the motor to accelerate from the first speed to the dehydration speed, step A12 comprises:

[0076] S1, judging whether the motor operating power is less than or equal to the first preset power; if yes, determining that the amount of foam in the tub is in the low foam stage; if not, performing S2;

[0077] S2, judging whether the motor operating power is less than or equal to the second preset power; if yes, determining that the amount of foam in the tub is in the medium foam stage; if not, determining that the amount of foam in the tub is in the high foam stage.

[0078] Specifically, referring to Figure 4When the motor is at V1 rotating speed - dehydration rotating speed rising period, the motor continuously rises and the rotating speed is high, it is preferred to detect the motor power in real time and compare with the first preset power value P1 and the second preset power value P2. When P≤P1, the foam in the clothes is little, the normal dehydration process can be continued; when P1

[0079] Figure 5 The figure is the dehydration judgment flow chart of the present application. Further optionally, the dehydration judgment flow chart of the present application is combined with the Figure 5 In step A1, the foam amount in the drum in the draining stage is identified, including steps A13-A14, wherein:

[0080] A13, monitoring the residual water level in the drum and the corresponding draining time;

[0081] A14, identifying the foam amount in the drum according to the residual water level in the drum and the corresponding draining time.

[0082] Specifically, when the main washing is completed, the draining pump 4 is opened to start draining, whether the draining pump 4 is normally operated is detected, if not, the display panel is fed back to report the abnormal failure of the draining pump 4, and the residual water level in the drum and the corresponding draining time can be detected to accurately judge the foam amount in the drum.

[0083] Further optionally, step A14 includes:

[0084] S3, judging whether the residual water level in the drum reaches the empty drum water level; if not, executing S4;

[0085] S4, judging whether the draining time is less than or equal to the preset draining time; if not, determining that the foam amount in the drum is in the high foam stage.

[0086] Specifically, it is judged whether the water level in the tub has reached the empty tub water level at this time. If yes, the draining has been completed, and the dehydration process is directly entered. If no, the time t from opening the drain pump 4 to detecting the water level is obtained, and it is judged that t≤t1. t1 is a preset time, representing the time required for the water level in the tub to be completely drained. In this embodiment, t1=Q / (S-0.5) is preferred, Q is the water inflow after the main washing, in units of L, which is calculated from the water level difference before and after the water inflow, and S is the rated drainage of the drain pump 4, in units of L / min. When t≤t1, the water in the tub has not been completely drained at this time, and the draining is continued. When t>t1, the draining time has exceeded the water level's proper draining time, and the water level in the tub has not reached the empty tub water level, indicating that the inner tub is in the high foam stage at this time. Since the water level detection uses a pressure sensor to detect, at this time, the excessive foam increases the air pressure, and the water level sensor judges the foam as the water level, so it is displayed that the empty tub water level has not been reached. Since the foam amount at this time has caused the water level detection to be misjudged, that is, the foam amount is large at this time, and the clothes have been completely covered, so the defoaming process needs to be performed first, and then the normal dehydration process is entered.

[0087] The laundry treatment apparatus is provided with a first spin process, Figure 6 The flowchart of the first spin process of this embodiment is shown in FIG. 2. Further optionally, in combination with Figure 6 Step A2 includes A21:

[0088] A21, when the foam amount in the tub is in the high foam stage, the first spin process is performed.

[0089] The first spin process includes: first defoaming treatment, then controlling the washing tub to spin at a first speed, then controlling the washing tub to spin at a dehydration speed, and controlling the spraying assembly to continuously spray for a first preset time length.

[0090] Wherein, V1

[0091] Further optionally, in combination with Figure 6 The defoaming treatment includes:

[0092] Controlling the washing tub to stand still for a second preset time length, so that the foam amount in the tub self-annihilates;

[0093] Controlling the drain pump to be opened, and controlling the spraying assembly to be intermittently opened within a third preset time length, to flush the foam amount in the tub.

[0094] Specifically, after entering the first bleaching process, the motor is first stopped to make the inner drum stand for a period of time, the disturbance is stopped, and the foam is self-eliminated; then the drain pump 4 is opened to intermittently spray clean water into the clothes in the drum, and the spraying assembly is preferably opened for 15s and stopped for 15s for 2min, which is to dilute the washing foam with non-circulating clean water to reduce the residual amount of foam in the clothes, and the inner drum cannot rotate and the spraying is intermittent to prevent more foam from being stirred up due to the rotation of the inner drum and the continuous impact of the spraying water flow; then the dehydration is performed at V1 speed, the detergent residue in the clothes is first dehydrated out of the body at low speed, and finally the dehydration is performed at V2 speed for bleaching, the spraying dehydration is sprayed for 90s, and the first bleaching process is completed. The defoaming is performed in stages and in order in this bleaching method, the inner drum is stopped and the clean water is intermittently sprayed in the early stage to dilute the washing liquid in the clothes, and the clothes are continuously sprayed and washed clean at a medium speed in the later stage. This method is efficient, fast and has remarkable defoaming effect.

[0095] The laundry treatment apparatus is provided with a second bleaching process, Figure 7 The flowchart of the second bleaching process of the present embodiment is shown in the figure. Further optionally, the second bleaching process is combined with the first bleaching process to form a complete bleaching process. Figure 7 Step A2 includes A22:

[0096] A22, when the amount of foam in the drum is in the low foam stage, the second bleaching process is performed;

[0097] The second bleaching process includes: first controlling the washing drum to dehydrate at a fourth speed, then controlling the washing drum to dehydrate at a third speed, and controlling the spraying assembly to continuously spray for a fourth preset time;

[0098] Then control the washing drum to dehydrate at the fourth speed;

[0099] Wherein, V2 < V3 < V4, V3 represents the third speed, and V4 represents the fourth speed.

[0100] Specifically, after entering the second bleaching flow, the speed is first increased to V4 to remove the detergent residue contained in the clothes, then the speed is reduced to V3 for spraying and bleaching to remove the washing liquid in the clothes, the clothes are bleached clean, and finally the speed is increased to V4 for final dehydration, which is convenient for clothes drying or airing, until the end. During the spraying and bleaching, the drain valve is opened, the clean water is sprayed from the water inlet valve to the clothes at the bottom of the inner drum through the spray head 6, the spraying water dissolves and dilutes the residual detergent on the clothes, and then the washing machine is drained through the drain valve to perform the bleaching process. The clothes are bleached and dehydrated at the same time, first dehydrated at high speed for a period of time to remove the residual water in the clothes, then reduced to low speed to dehydrate and spray the clothes. After the main washing is drained, the residual water in the clothes is first removed at high speed, and then the clothes are dehydrated and sprayed at low speed to remove the residual water in the clothes, and the drain valve is opened at the same time. The residual water of the spraying and bleaching is directly discharged out of the drum to prevent secondary pollution, which eliminates the multiple rinsing in the original program, greatly reduces the running time of the washing machine, and also saves water and electricity.

[0101] Further optionally, step A2 further comprises A23:

[0102] A23, when the amount of foam in the tub is in the medium foam stage, first control the washing tub to perform a rinse to remove part of the foam in the tub, and then perform the second rinse-off process.

[0103] Further optionally, controlling the washing tub to perform a rinse comprises:

[0104] controlling the motor to drive the washing tub to rotate at a fifth rotating speed, and introducing a preset amount of washing water into the washing tub to rinse the laundry;

[0105] wherein V0 < V1, V0 represents the fifth rotating speed.

[0106] Specifically, when the amount of foam contained in the laundry in the drum is medium, first control the washing tub to rotate at V0 speed to perform a pre-rinse, which can eliminate part of the foam in the laundry, further reduce the amount of foam, and then perform the second rinse-off process to eliminate the remaining foam in the laundry while dehydrating, thereby ensuring the rinsing effect of the laundry and saving washing time.

[0107] Further optionally, after the second rinse-off process is performed, the dehydration control method further comprises:

[0108] controlling the washing tub to perform final dehydration at a fourth rotating speed.

[0109] Specifically, after the second rinse-off process is completed, the motor is accelerated to V4 rotating speed for dehydration, and finally completes the dehydration stage.

[0110] The second aspect of the embodiment provides a dehydration control device of a laundry treatment apparatus, comprising one or more processors and a non-transitory computer-readable storage medium storing program instructions, when the one or more processors execute the program instructions, the one or more processors are used to implement the dehydration control method of any one of the first aspect.

[0111] The third aspect of the embodiment provides a laundry treatment apparatus, which adopts the dehydration control method of any one of the first aspect, or comprises the dehydration control device of the second aspect.

[0112] The device embodiments described above are only schematic, wherein the units described as separate components can or can not be physically separate, and the components displayed as units can or can not be physical units, i.e. they can be located in one place, or distributed on multiple network units. Part or all of the modules can be selected according to actual needs to achieve the purpose of the embodiment scheme. Those skilled in the art can understand and implement without creative labor.

[0113] Those skilled in the art can clearly understand the implementation of the embodiments by the description of the above embodiments. The embodiments can be implemented by means of software and necessary universal hardware platforms, and of course, can also be implemented by hardware. Based on such understanding, the above technical solutions can be embodied in the form of a software product, which can be stored in a computer readable storage medium, such as a ROM / RAM, a magnetic disk, an optical disk, etc., and includes a plurality of instructions to make a computer device (which can be a personal computer, a server, or a network device, etc.) execute the methods described in each embodiment or some parts of the embodiments.

[0114] The above only describes the preferred embodiments of the present application, and does not limit the present application in any form. Although the present application has been disclosed as above with the preferred embodiments, it is not intended to limit the present application. Any skilled person in the art can make some changes or modifications to the above-mentioned technical content without departing from the scope of the technical solutions of the present application, and any simple modification, equivalent change and modification of the above embodiments based on the technical essence of the present application are still within the scope of the present application.

Claims

1. A method of controlling spin-drying of a laundry treating apparatus including a washing tub in which a spraying assembly is provided and a drain pump, the laundry treating apparatus being provided with a draining phase and a spin-drying phase, the method comprising: determining a water level of the washing tub; determining a water level of the drain pump; and determining whether to perform the spin-drying phase based on the water level of the washing tub and the water level of the drain pump. The laundry treating apparatus is provided with different spin-off processes according to different amounts of foam, and the spin-off control method comprises: In the draining phase and the spin-off phase, the amount of foam in the tub is identified; According to the amount of foam in the tub, a corresponding spin-off process is executed; Wherein, The laundry treating apparatus is provided with a first spin-off process, and according to the amount of foam in the tub, a corresponding spin-off process is executed, which comprises: When the amount of foam in the tub is in the high-foam stage, the first spin-off process is executed; The first spin-off process comprises: first, defoaming treatment is performed, then the washing tub is controlled to spin at a first speed, and then the washing tub is controlled to spin at a spin-off speed, and the spraying assembly is controlled to continuously spray for a first preset time; Wherein, V1 The defoaming treatment comprises: The washing tub is controlled to stand still for a second preset time, so that the amount of foam in the tub self-annihilates; The drain pump is controlled to open, and the spraying assembly is controlled to be intermittently opened for a third preset time to flush the amount of foam in the tub; The laundry treating apparatus is provided with a second spin-off process, and according to the amount of foam in the tub, a corresponding spin-off process is executed, which comprises: When the amount of foam in the tub is in the low-foam stage, the second spin-off process is executed; The second spin-off process comprises: first, the washing tub is controlled to spin at a fourth speed, then the washing tub is controlled to spin at a third speed, and the spraying assembly is controlled to continuously spray for a fourth preset time; Then, the washing tub is controlled to spin at the fourth speed for final spin-off; Wherein, V2 According to the amount of foam in the tub, a corresponding spin-off process is executed, which further comprises: When the amount of foam in the tub is in the medium-foam stage, first, the washing tub is controlled to perform a rinse to remove part of the amount of foam in the tub, and then the second spin-off process is executed; The control of the washing tub to perform a rinse comprises: The motor is controlled to drive the washing tub to rotate at a fifth speed, and a preset amount of washing water is supplied to the washing tub to rinse the clothes; Wherein, V0 2. The dewatering control method according to claim 1, characterized by, In the spin-off phase, the amount of foam in the tub is identified, which comprises: Before the motor speed reaches the spin-off speed, the motor operating power is monitored; The interval of the motor operating power is determined to determine the stage of the amount of foam in the tub.

3. The dewatering control method according to claim 2, characterized by, In the process of controlling the motor to accelerate from the first speed to the spin-off speed, the interval of the motor operating power is determined to determine the stage of the amount of foam in the tub, which comprises: It is judged whether the motor operating power is less than or equal to a first preset power; If not, it is determined that the amount of foam in the tub is in the high-foam stage.

4. The dewatering control method according to claim 2, characterized by, In the process of controlling the motor to accelerate from the first speed to the spin-off speed, the interval of the motor operating power is determined to determine the stage of the amount of foam in the tub, which comprises: S1, it is judged whether the motor operating power is less than or equal to a first preset power; if yes, it is determined that the amount of foam in the tub is in the low-foam stage; if not, S2 is executed; S2, it is judged whether the motor operating power is less than or equal to a second preset power; if yes, it is determined that the amount of foam in the tub is in the medium-foam stage; if not, it is determined that the amount of foam in the tub is in the high-foam stage.

5. The dewatering control method according to claim 1, characterized by, In the draining phase, the amount of foam in the vat is identified, including: monitoring the remaining water level in the vat and the corresponding draining time; identifying the amount of foam in the vat according to the remaining water level in the vat and the corresponding draining time.

6. The dewatering control method according to claim 5, characterized by, identifying the amount of foam in the vat according to the remaining water level in the vat and the corresponding draining time, including: S3, determining whether the remaining water level in the vat reaches the empty vat water level; if not, performing S4; S4, determining whether the draining time is less than or equal to the preset draining time; if not, determining that the amount of foam in the vat is in the high foam stage. 7.A dewatering control apparatus of a laundry treating apparatus, characterized by, The device comprises one or more processors and a non-transitory computer readable storage medium having stored program instructions, and when the one or more processors execute the program instructions, the one or more processors are configured to implement the dewatering control method according to any one of claims 1-6. 8.A laundry treating apparatus, characterized by, The device adopts the dewatering control method according to any one of claims 1-6, or comprises the dewatering control device according to claim 7.

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