A dehydration control method and a washing machine having a steam washing function

Abstract

The application provides a dehydration control method and a washing machine with a steam washing function. The dehydration control method comprises the following steps: obtaining an initial clothes weight value; performing weighing after pre-dehydration to obtain a pre-dehydration weight value; performing weighing after main dehydration to obtain a main dehydration weight value; if the pre-dehydration amount is less than a pre-dehydration lower limit value or the main dehydration amount is less than a main dehydration lower limit value, performing steam washing of easily water-absorbing clothes; if the pre-dehydration amount is greater than a pre-dehydration upper limit value or the main dehydration amount is greater than a main dehydration upper limit value, performing steam washing of not-easily water-absorbing clothes; and if it is other conditions, performing steam washing of neutral clothes. Different materials of clothes have different dehydration amounts after spinning, and different materials of clothes are divided into easily water-absorbing clothes, not-easily water-absorbing clothes and neutral clothes. Different steam washing modes are adopted for different materials of clothes, the water content of clothes is controlled, and user experience is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of washing machines, and in particular to a dehydration control method and a washing machine with a steam washing function. BACKGROUND

[0002] After the washing program ends, the clothes in the washing machine will have wrinkles. The reason is that the washing machine uses mechanical action to wash clothes, and the clothes will be wrinkled due to the extrusion of the mechanical action during the washing process. On the other hand, the clothes are also prone to wrinkles during wearing or storage.

[0003] If steam washing is added after the clothes are washed and the dehydration ends, the phenomenon of wrinkles can be reduced to some extent, and even the wrinkles can disappear. At the same time, steam washing can eliminate the dirt that cannot be eliminated by traditional washing to some extent, and can eliminate odors to some extent.

[0004] However, if steam washing is performed after dehydration ends, the water content of the clothes may be greater than the water content before steam washing is added, and the water content of the clothes is too high. SUMMARY

[0005] The present application provides a dehydration control method and a washing machine with a steam washing function to solve the problem that if steam washing is performed after dehydration ends, the water content of the clothes may be greater than the water content before steam washing is added, and the water content of the clothes is too high.

[0006] In a first aspect, the present application provides a dehydration control method, comprising: obtaining an initial clothes weight value; obtaining a pre-dehydration weight value, the pre-dehydration weight value being a weight value obtained by weighing after performing pre-dehydration on the clothes; obtaining a main dehydration weight value, the main dehydration weight value being a weight value obtained by weighing after performing main dehydration on the clothes; calculating a pre-dehydration amount and a main dehydration amount, the pre-dehydration amount being a difference between the initial clothes weight value and the pre-dehydration weight value, and the main dehydration amount being a difference between the initial clothes weight value and the main dehydration weight value; if the pre-dehydration amount is less than a pre-dehydration lower limit value, or the main dehydration amount is less than a main dehydration lower limit value, sending an easy-to-absorb clothes steam washing mode execution instruction; the pre-dehydration lower limit value is less than the pre-dehydration upper limit value, and the main dehydration lower limit value is less than the main dehydration upper limit value; if the pre-dehydration amount is greater than a pre-dehydration upper limit value, or the main dehydration amount is greater than a main dehydration upper limit value, sending a non-easy-to-absorb clothes steam washing mode execution instruction; if the pre-dehydration amount is greater than or equal to the pre-dehydration lower limit value, and the pre-dehydration amount is less than or equal to the pre-dehydration upper limit value, and the main dehydration amount is greater than or equal to the main dehydration lower limit value, and the main dehydration amount is less than or equal to the main dehydration upper limit value, sending a neutral clothes steam washing mode execution instruction.

[0007] Optionally, the neutral laundry steam washing mode comprises: using steam at a preset temperature to wash for a first preset time; the easily water-absorbing laundry steam washing mode comprises: using steam at a preset temperature to wash for a second preset time; the first preset time is greater than the second preset time; the not-easily water-absorbing laundry steam washing mode comprises: using steam at a preset temperature to wash for a third preset time; the second preset time is greater than the third preset time.

[0008] Optionally, the first preset time is 4-6 min, the second preset time is 3-5 min, and the third preset time is 2-4 min.

[0009] Optionally, the preset temperature is 80-95℃.

[0010] Optionally, the pre-dewatering of the laundry comprises setting the rotation speed to 300-500 rpm for 20-40 s, and generating an instruction to send to the washing drum.

[0011] Optionally, the main dewatering of the laundry comprises setting the rotation speed to 600-1000 rpm for 2-4 min, and generating an instruction to send to the washing drum.

[0012] Optionally, before obtaining the weight value after the pre-dewatering or obtaining the weight value after the main dewatering, the method comprises: sending an eccentricity detection instruction to obtain an eccentricity value; determining whether the eccentricity value meets the requirements of the weight value and the rotation speed according to a preset eccentricity comparison table; if the eccentricity value meets the requirements, sending an instruction to execute the pre-dewatering step or the main dewatering step; and if the eccentricity value does not meet the requirements, sending an eccentricity adjustment instruction.

[0013] Optionally, after the eccentricity adjustment instruction is sent, the method further comprises: re-sending the eccentricity detection instruction to obtain the eccentricity value; repeatedly determining whether the eccentricity value meets the requirements according to the preset eccentricity comparison table; and if the number of times of eccentricity adjustment is greater than a preset value, sending an alarm information.

[0014] Optionally, the eccentricity adjustment instruction is used to set the rotation speed of the washing drum to 80-100 rpm for 1-5 s.

[0015] In a second aspect, the application further provides a washing machine with a steam washing function, comprising: a washing drum configured to load laundry for washing and dewatering; an eccentricity sensor configured to detect the eccentricity value of the washing drum; a weighing sensor configured to detect the weight value of the washing drum; a steam washing mechanism configured to generate steam at a preset temperature for washing; and a controller configured to execute the dewatering control method of the first aspect.

[0016] The application provides a dehydration control method and a washing machine with a steam washing function, the dehydration control method comprising: obtaining an initial clothes weight value; performing weighing after pre-dehydration to obtain a pre-dehydration weight value; performing weighing after main dehydration to obtain a main dehydration weight value; if the pre-dehydration amount is less than a pre-dehydration lower limit value or the main dehydration amount is less than a main dehydration lower limit value, performing steam washing of easily water-absorbing clothes; if the pre-dehydration amount is greater than a pre-dehydration upper limit value or the main dehydration amount is greater than a main dehydration upper limit value, performing steam washing of not-easily water-absorbing clothes; and if it is other conditions, performing steam washing of neutral clothes. Different materials of clothes are spun to different dehydration amounts, and the different materials of clothes are divided into easily water-absorbing, not-easily water-absorbing and neutral. Different steam washing modes are adopted for different materials of clothes to control the water content of clothes and improve user experience. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the present application, the following will briefly introduce the drawings needed to be used in the embodiments. Obviously, for those skilled in the art, other drawings can also be obtained without creative labor based on these drawings.

[0018] Figure 1 A flowchart of a dehydration control method described in the present application;

[0019] Figure 2 A flowchart of a clothes adjusting step described in the present application;

[0020] Figure 3 A data flow relationship diagram of a dehydration control method described in the present application. DETAILED DESCRIPTION

[0021] The following will be described in detail, and its examples are shown in the drawings. When the following description refers to the drawings, the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following embodiments do not represent all the embodiments consistent with the present application. They are only examples of systems and methods consistent with some aspects of the present application as described in detail in the claims.

[0022] The washing machine is a cleaning electric appliance that uses electric energy to generate mechanical action to wash clothes. The cleaning process generally puts the clothes into the cleaning cylinder for cleaning, and then dehydrates and spins to dry. The centrifugal force generated by the high-speed rotation of the driving cleaning cylinder dehydrates and spins to dry the water in the clothes. When the dehydration and spinning to dry are finished, it is found that the clothes in the washing machine have wrinkles. The reason is that the washing machine uses electric energy to generate mechanical action to wash clothes, and the clothes are pressed by the mechanical action during the washing process, which causes the clothes to wrinkle. On the other hand, the clothes are also prone to wrinkles during wearing or storage.

[0023] In some embodiments, the washing machine will have a steam washing function. Steam washing, also called supersaturated steam cleaning, is a type of cleaning method. Through the action of high-temperature and high-pressure saturated steam, the oil particles on the surface being cleaned are dissolved and vaporized, which can make the surface cleaned by saturated steam reach an ultra-clean state. At the same time, supersaturated steam can effectively cut into any tiny holes and cracks, peeling off and removing the stains and residues therein. If steam washing is added after the clothes are washed and dehydrated, the wrinkles can be alleviated to a certain extent, and even the wrinkles can be eliminated. At the same time, steam washing can eliminate dirt that cannot be eliminated by traditional washing to a certain extent, and can eliminate odors to a certain extent. However, steam washing after dehydration may cause the moisture content of the clothes to be greater than the moisture content before steam washing was added, making the moisture content of the clothes unqualified.

[0024] In order to solve the above problems, the present application provides a dehydration control method, which can be applied to a washing machine with a steam washing function. In order to meet the implementation of the dehydration control method, the washing machine should at least have a washing drum for loading clothes for washing and dehydration; an eccentricity sensor is used to detect the eccentricity value of the washing drum, and the detected eccentricity value will be normalized to 1-255; a weighing sensor is used to detect the weight value of the washing drum, and the detected weight value will be normalized to 1-255; a steam washing mechanism is used to generate steam of a preset temperature for cleaning; and a controller is used to control the actions of each mechanism to execute the dehydration control method. Figure 1 As shown, the dehydration control method includes the following steps:

[0025] S100: Obtain an initial laundry weight value IB1.

[0026] After the clothes are washed, they enter the spin cycle, where they are weighed. The controller sends a command to the load cell, which detects the weight of the washing tub. This determines the initial weight of the clothes before spin (IB1). Since the clothes have just been washed, they contain a significant amount of water. The pre-spin weight is compared with the post-spin weight to determine whether the clothes absorb water easily.

[0027] S200: Acquire a weight value IB2 after pre-dehydration, where the weight value IB2 after pre-dehydration is obtained by weighing the clothes after pre-dehydration.

[0028] The washing machine can perform pre-spinning on the laundry. The pre-spinning is a work step of spinning out the water in the laundry directly at a medium speed for tens of seconds to reduce the weight of the laundry, and the pre-spinning can be triggered by a pre-spinning instruction. In an exemplary embodiment, when the pre-spinning is performed on the laundry, a pre-spinning instruction can be generated by setting a rotation speed of 300-500 rpm and a duration of 20-40 s, and then the pre-spinning instruction is sent to the washing drum. The washing drum can perform the pre-spinning according to the set rotation speed and duration in response to the pre-spinning instruction. The pre-spinning is to avoid that the laundry is directly spun at a high speed to generate relatively large noise, and it is also easier to spin at a high speed after the weight of the laundry is reduced. The weight value IB2 obtained after the pre-spinning is used to calculate the pre-spinning amount.

[0029] S300: obtaining a main-spinning-after-weight value IB3, the main-spinning-after-weight value IB3 being a weight value obtained by weighing after performing main-spinning on the laundry.

[0030] The washing machine can perform main-spinning on the laundry. The main-spinning is a work step of spinning out a large amount of water in the laundry at a high speed for several minutes to make the water content of the laundry less than a preset value, and the main-spinning can be triggered by a main-spinning instruction. In an exemplary embodiment, when the main-spinning is performed on the laundry, a main-spinning instruction can be generated by setting a rotation speed of 600-1000 rpm and a duration of 2-4 min, and then the main-spinning instruction is sent to the washing drum. The washing drum can perform the main-spinning according to the set rotation speed and duration in response to the main-spinning instruction. If the water content of the laundry is greater than the preset value, the water content of the laundry is unqualified, and then relatively more water will be left on the laundry when the laundry is taken out, which affects the drying of the laundry. The weight value IB3 obtained after the main-spinning is used to calculate the main-spinning amount.

[0031] S400: calculating a pre-spinning amount YB and a main-spinning amount ZB.

[0032] The pre-spinning amount is a difference between the initial laundry weight value IB1 and the pre-spinning-after-weight value IB2, and the main-spinning amount is a difference between the initial laundry weight value IB1 and the main-spinning-after-weight value IB3. For example, the initial laundry weight value IB1 is 100, the pre-spinning-after-weight value IB2 is 92, and the main-spinning-after-weight value IB3 is 75, then the pre-spinning amount YB is 8, and the main-spinning amount ZB is 25.

[0033] The pre-spin-off amount YB = IB1-IB2 and the main spin-off amount ZB = IB1-IB3 are calculated to determine whether the clothes are easy to absorb water. Different materials of clothes have different water absorption capacity, that is, different materials of clothes spin off different amounts of water during spinning. Different materials of clothes are divided into easy-to-absorb water, not easy-to-absorb water and neutral (between easy-to-absorb water and not easy-to-absorb water). Different steam washing modes are adopted for clothes of different materials to control the moisture content of clothes and improve user experience.

[0034] S500: If the pre-spin-off amount is less than the pre-spin-off lower limit value B, or the main spin-off amount is less than the main spin-off lower limit value B1, an easy-to-absorb water clothes steam washing mode execution instruction is sent.

[0035] The pre-spin-off lower limit value B is less than the pre-spin-off upper limit value A, and the main spin-off lower limit value B1 is less than the main spin-off upper limit value A1. For example, the pre-spin-off upper limit value A is in the range of 20-30, the pre-spin-off lower limit value B is in the range of 10-15, the main spin-off upper limit value A1 is in the range of 50-70, and the main spin-off lower limit value B is in the range of 30-50.

[0036] When YB < B, it indicates that the material of the clothes is easy to absorb water, and the easy-to-absorb water clothes steam washing mode is executed. Because the speed is not very high during pre-spinning, when YB > B, it is necessary to determine whether ZB is less than B1 to verify whether the clothes that do not meet the condition during pre-spinning will not spin off a large amount of water at high speed to further determine whether they are easy-to-absorb water clothes. If ZB < B1, it indicates that the material of the clothes is easy to absorb water, and the controller sends an easy-to-absorb water clothes steam washing mode execution instruction. The steam washing mechanism responds to the instruction to execute the easy-to-absorb water clothes steam washing mode. The pre-spin-off amount and the main spin-off amount are determined twice to more accurately determine whether the material of the clothes is easy to absorb water, thereby avoiding the use of the wrong steam washing mode.

[0037] S600: If the pre-spin-off amount is greater than the pre-spin-off upper limit value A, or the main spin-off amount is greater than the main spin-off upper limit value A1, a not-easy-to-absorb water clothes steam washing mode execution instruction is sent.

[0038] When YB>A, it indicates that the material of the clothes is not easy to absorb water, and then the steam washing mode for clothes not easy to absorb water is executed. Similarly, because the rotation speed during the pre-spinning is not very high, when YB<A, it is necessary to determine whether ZB is greater than A1, to verify whether the clothes not meeting the condition during the pre-spinning will spin out a large amount of water at a high rotation speed, to further determine whether the clothes are easy to absorb water. If ZB>A1, it indicates that the material of the clothes is easy to absorb water, and then the controller sends an execution instruction of the steam washing mode for clothes not easy to absorb water, and the steam washing mechanism executes the steam washing mode for clothes not easy to absorb water in response to the instruction. The twice determination of the pre-spinning amount and the main spinning amount can more accurately determine whether the material of the clothes is not easy to absorb water, thereby avoiding the use of the wrong steam washing mode.

[0039] S700: If the pre-spinning amount is greater than or equal to the pre-spinning lower limit value B, and the pre-spinning amount is less than or equal to the pre-spinning upper limit value A, and the main spinning amount is greater than or equal to the main spinning lower limit value B1, and the main spinning amount is less than or equal to the main spinning upper limit value A1, then an execution instruction of the steam washing mode for neutral clothes is sent.

[0040] When the clothes are between easy to absorb water and not easy to absorb water, that is, YB and ZB do not meet the conditions of easy to absorb water and not easy to absorb water, it indicates that the material of the clothes is neutral, and then the controller sends an execution instruction of the steam washing mode for neutral clothes, and the steam washing mechanism executes the steam washing mode for neutral clothes in response to the instruction.

[0041] It should be noted that A, B, A1, and B1 are constant limit values, which are selected by a large number of experiments and theoretical analysis, combined with the characteristics of whether all clothes are easy to absorb water.

[0042] Because the spinning amount of clothes of different materials is different, the clothes of different materials are divided into easy to absorb water, not easy to absorb water, and neutral, and the twice determination of the pre-spinning amount and the main spinning amount can more accurately determine the material of the clothes. If the same steam washing mode is used for clothes of different materials, it will cause, for example, the moisture content of the clothes easy to absorb water after steam washing will be qualified, but the moisture content of the clothes not easy to absorb water and neutral after steam washing will not be qualified. It can be seen that it is very difficult to use one steam washing mode to make the moisture content of the clothes easy to absorb water, not easy to absorb water, and neutral after steam washing all qualified. Using different steam washing modes for clothes of different materials can set up according to the water absorption characteristics of different materials, thereby controlling the moisture content of the clothes and improving the user experience.

[0043] In an illustrative embodiment, the neutral clothes steam washing mode comprises: using steam at a preset temperature to wash for a first preset time t1; the water-absorbing clothes steam washing mode comprises: using steam at a preset temperature to wash for a second preset time t2; the first preset time t1 is greater than the second preset time t2; the non-water-absorbing clothes steam washing mode comprises: using steam at a preset temperature to wash for a third preset time t3; the second preset time t2 is greater than the third preset time t3.

[0044] In an illustrative embodiment, the first preset time t1 is 4-6 min, the second preset time t2 is 3-5 min, and the third preset time t3 is 2-4 min.

[0045] The duration of steam washing has a greater impact on the water content of clothes, so the duration used for different steam washing modes is different. For example, if t1 is set to 4 min, t2 is 3 min, and t3 is 2 min; if t1 is set to 5 min, t2 is 4 min, and t3 is 3 min; if t1 is set to 6 min, t2 is 5 min, and t3 is 4 min. If the duration of steam washing of water-absorbing clothes is too long, water vapor will be absorbed into the clothes, resulting in unqualified water content; if the duration of steam washing of non-water-absorbing clothes is too long, water vapor will form water droplets on the surface of the clothes, resulting in dripping when the clothes are taken out and a wet feeling when touched, resulting in unqualified water content; and even if the duration of steam washing of neutral clothes is longer than that of water-absorbing clothes and non-water-absorbing clothes, it will still have a good effect. Therefore, the duration t1 of steam washing of neutral clothes needs to be the longest, the duration t3 of steam washing of non-water-absorbing clothes is the shortest, and the duration t2 of steam washing of water-absorbing clothes is between t1 and t3.

[0046] Because the higher the temperature, the better the effect of steam washing, but too high a temperature can damage the clothes. Therefore, in an illustrative embodiment, the preset temperature is 80-95°C. A preset temperature of 80-95°C can produce a good cleaning effect without damaging the clothes.

[0047] Because the pre-dewatering or main dewatering needs to increase the rotational speed of the washing drum to a certain value, in order to protect the washing drum from generating strong vibration and noise during rotation, a clothes adjustment step needs to be performed.

[0048] In an illustrative embodiment, the clothes adjustment step is performed before the pre-dewatering step or the main dewatering step, as shown in Figure 2 , which includes:

[0049] S201: Send an eccentricity detection instruction to obtain an eccentricity value.

[0050] In order to ensure that the washing tub can reach the set maximum rotating speed and have little vibration during the dehydration of the washing machine, it is necessary to detect the eccentricity of the laundry in the washing tub before dehydration. Excessive eccentricity value can cause the washing tub to hit the cabinet or control lever, and even strong vibration and noise during high-speed dehydration. Serious eccentricity value can even cause the washing machine to move, jump or damage, etc.

[0051] S202: According to the preset eccentricity comparison table, it is judged whether the eccentricity value meets the requirements of weight value and rotating speed.

[0052] The preset eccentricity comparison table includes the eccentricity value requirements corresponding to the rotating speed and weight value of each gear position. The eccentricity value needs to meet the requirements to make the washing tub safely rise to the corresponding rotating speed. For example, as shown in Table 1, when the rotating speed is less than 100 rpm, the eccentricity value is less than or equal to 255, which means no requirement for the eccentricity value; when the rotating speed is 300-500 rpm, the corresponding weight value is less than 50, the eccentricity value is less than 200, the corresponding weight value is 50-150, the eccentricity value is less than 150, the corresponding weight value is 150-255, the eccentricity value is less than 100; when the rotating speed is 600-1000 rpm, the corresponding weight value is less than 50, the eccentricity value is less than 150, the corresponding weight value is 50-150, the eccentricity value is less than 100, the corresponding weight value is 150-255, the eccentricity value is less than 50.

[0053] Table 1: Eccentricity Comparison Table

[0054]

[0055] S203: If the eccentricity value meets the requirements, send the pre-dehydration step or main dehydration step instruction.

[0056] The eccentricity value meets the requirements, which means that the washing tub can safely rise to the corresponding rotating speed. At this time, continuing to execute the pre-dehydration step or the main dehydration step will not cause the washing tub to produce strong vibration and noise. For example, before executing the pre-dehydration step, the initial laundry weight value IB1 is 100, and the detected eccentricity value is 100. As shown in Table 1, the eccentricity value meets the requirements, and the controller generates a pre-dehydration step instruction. Then the instruction is sent to the washing tub. The washing tub responds to the pre-dehydration instruction and works according to the set rotating speed and duration to perform pre-dehydration. Figure 3

[0057] S204: If the eccentricity value does not meet the requirements, send the eccentricity adjustment instruction.

[0058] ​The eccentricity value not meeting the requirement indicates that the washing tub cannot safely rise to the corresponding rotating speed, and if the pre-spinning step or the main spinning step is continuously executed, the washing tub will generate strong vibration and noise, and the eccentricity value exceeding the requirement will even cause the washing machine to move, jump or be damaged. Therefore, eccentricity adjustment needs to be executed. For example, before the main spinning step is executed, the weight value IB2 after pre-spinning is 100, and the detected eccentricity value is 100, which indicates that the eccentricity value does not meet the requirement, and the controller generates an eccentricity adjustment instruction and sends the instruction to the washing tub. The washing tub can work according to the set rotating speed and duration to perform eccentricity adjustment in response to the eccentricity adjustment instruction.

[0059] In an illustrative embodiment, the eccentricity adjustment instruction is used to set the rotating speed of the washing tub to 80-100 rpm and the duration to 1-5 s. The eccentricity adjustment is to shake the clothes at a relatively low rotating speed to achieve the purpose of adjusting the eccentricity. The rotating speed is relatively low and the duration is very short during the eccentricity adjustment, and therefore, the washing tub will not generate strong vibration and noise.

[0060] S205: If the number of times of eccentricity adjustment is greater than a preset value, an alarm information is sent.

[0061] In an illustrative embodiment, the eccentricity detection instruction is re-sent after the eccentricity adjustment to obtain the eccentricity value, and the step of judging whether the eccentricity value meets the requirement according to the preset eccentricity comparison table is repeatedly executed. The number of times of eccentricity adjustment needs to be increased by 1 after the eccentricity adjustment is executed. If the eccentricity value meets the requirement, the pre-spinning step or the main spinning step is continuously executed. If the eccentricity value still does not meet the requirement, the step S204 is repeatedly executed.

[0062] When the number of times of eccentricity adjustment is greater than a preset value, for example, the number of times of eccentricity adjustment is greater than 5, it indicates that the automatic clothes adjustment of the washing machine cannot meet the requirement, and at this time, the alarm information needs to be sent to let the user perform manual adjustment or enter other adjustment programs.

[0063] Based on the dehydration control method provided in the above embodiments, some embodiments of the present application further provide a washing machine with a steam washing function, which comprises: a washing tub configured to load clothes for washing and dehydration; an eccentricity sensor configured to detect the eccentricity value of the washing tub; a weighing sensor configured to detect the weight value of the washing tub; a steam washing mechanism configured to generate steam at a preset temperature for washing; and a controller configured to execute the dehydration control method provided in the above embodiments.

[0064] The application provides a dehydration control method and a washing machine with a steam washing function, the dehydration control method comprising: obtaining an initial clothes weight value; performing weighing after pre-dehydration to obtain a pre-dehydration weight value; performing weighing after main dehydration to obtain a main dehydration weight value; if the pre-dehydration amount is less than a pre-dehydration lower limit value or the main dehydration amount is less than a main dehydration lower limit value, performing steam washing of easily water-absorbing clothes; if the pre-dehydration amount is greater than a pre-dehydration upper limit value or the main dehydration amount is greater than a main dehydration upper limit value, performing steam washing of not-easily water-absorbing clothes; and if it is other conditions, performing steam washing of neutral clothes. Different materials of clothes are divided into easily water-absorbing, not-easily water-absorbing and neutral according to different dehydration amounts of the clothes after spinning. Different steam washing modes are adopted for clothes of different materials to control the water content of the clothes and improve user experience.

[0065] The similar parts among the embodiments provided by the application can be referred to each other, the specific embodiments provided above are only several examples under the general concept of the application and do not constitute the limitation of the protection scope of the application. Any other embodiments extended according to the application scheme without creative labor belong to the protection scope of the application for the person skilled in the art.

Claims

1. A dehydration control method characterized by, The method comprises: obtaining an initial clothes weight value; obtaining a post-pre-spinning weight value, which is a weight value obtained by weighing after pre-spinning is performed on the clothes; obtaining a post-main-spinning weight value, which is a weight value obtained by weighing after main spinning is performed on the clothes; calculating a pre-spinning amount and a main-spinning amount, the pre-spinning amount being a difference between the initial clothes weight value and the post-pre-spinning weight value, and the main-spinning amount being a difference between the initial clothes weight value and the post-main-spinning weight value; if the pre-spinning amount is less than a pre-spinning lower limit value, or the main-spinning amount is less than a main-spinning lower limit value, sending an easy-to-absorb clothes steam washing mode execution instruction; if the pre-spinning amount is greater than a pre-spinning upper limit value, or the main-spinning amount is greater than a main-spinning upper limit value, sending a non-easy-to-absorb clothes steam washing mode execution instruction; the pre-spinning lower limit value is less than the pre-spinning upper limit value; and the main-spinning lower limit value is less than the main-spinning upper limit value; if the pre-spinning amount is greater than or equal to the pre-spinning lower limit value, and less than or equal to the pre-spinning upper limit value, and the main-spinning amount is greater than or equal to the main-spinning lower limit value, and less than or equal to the main-spinning upper limit value, sending a neutral clothes steam washing mode execution instruction.

2. The dehydration control method according to claim 1, characterized by, The neutral clothes steam washing mode comprises: using steam at a preset temperature for cleaning for a first preset time. The easy-to-absorb clothes steam washing mode comprises: using steam at a preset temperature for cleaning for a second preset time; the first preset time is greater than the second preset time. The non-easy-to-absorb clothes steam washing mode comprises: using steam at a preset temperature for cleaning for a third preset time; the second preset time is greater than the third preset time.

3. A dewatering control method according to claim 2, wherein The first preset time is 4-6 min, the second preset time is 3-5 min, and the third preset time is 2-4 min.

4. The dehydration control method according to claim 2, characterized by, The preset temperature is 80-95°C.

5. The dehydration control method of claim 1, wherein The pre-spinning on the clothes comprises: setting a rotating speed of 300-500 rpm for a duration of 20-40 s, and generating an instruction sent to the cleaning drum.

6. The dehydration control method of claim 1, wherein The main spinning on the clothes comprises: setting a rotating speed of 600-1000 rpm for a duration of 2-4 min, and generating an instruction sent to the cleaning drum.

7. The dehydration control method of claim 1, wherein Before obtaining the post-pre-spinning weight value or the post-main-spinning weight value, the method comprises: sending an eccentricity detection instruction to obtain an eccentricity value; determining, according to a preset eccentricity comparison table, whether the eccentricity value meets the requirements of the weight value and the rotating speed; if the eccentricity value meets the requirements, sending an instruction to execute the pre-spinning step or the main spinning step; if the eccentricity value does not meet the requirements, sending an eccentricity adjustment instruction.

8. A dewatering control method according to claim 7, wherein After the eccentricity adjustment instruction is sent, the method further comprises: resending the eccentricity detection instruction to obtain an eccentricity value; repeatedly determining, according to the preset eccentricity comparison table, whether the eccentricity value meets the requirements; if the number of times of eccentricity adjustment is greater than a preset value, sending an alarm information.

9. The dehydration control method according to claim 7, characterized by, The eccentricity adjustment instruction is used to set a rotating speed of the cleaning drum to 80-100 rpm for a duration of 1-5 s.

10. A laundry machine having a steam washing function, characterized by, The method comprises: a cleaning drum configured to load clothes for cleaning and spinning; an eccentricity sensor configured to detect an eccentricity value of the washing drum; a load cell configured to detect a weight value of the washing drum; a steam washing mechanism configured to generate steam at a preset temperature for washing; a controller configured to perform the dehydration control method of any one of claims 1-9.

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