Washing machine control method, control device and washing machine

By introducing a control method for the concentration and dilution washing stages in the washing machine, the water volume and detergent concentration are optimized, solving the balance problem of the washing stage and achieving higher cleaning effect and intelligent control.

CN115404644BActive Publication Date: 2025-10-28QINGDAO HAIER WASHING MASCH CO LTD +1
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Patent Information

Application Number
CN202110586043.2
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2021-05-27
Publication Date
2025-10-28
Estimated Expiration
2041-05-27

AI Technical Summary

Technical Problem

Existing washing machines have difficulty effectively balancing water volume, detergent concentration, and mechanical force during the washing stage, resulting in poor cleaning performance, and it is also difficult to control high concentrations of detergent.

Method used

The system employs a concentrated washing stage and a diluted washing stage control method. The corresponding concentrated washing program is selected based on the water volume. The system optimizes the washing effect by controlling the water volume and detergent concentration at different stages, including the use of a circulating pump to extract and re-spray the washing water.

Benefits of technology

It improves the washing ratio, enhances the cleaning power of detergent, ensures washing effect while avoiding detergent residue, and improves the automation and intelligence of washing machines.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

This invention provides a control method, control device, and washing machine for a washing machine. The operation of the washing machine includes a concentrated washing stage where water is introduced to a first water volume and a dilution washing stage where water is introduced to a target water volume. The control method includes the following steps: S101: receiving an instruction; S102: determining a first water volume according to the instruction; S103: determining whether the first water volume is greater than a preset value. If so, a first concentrated washing program is selected; otherwise, a second concentrated washing program is selected. This invention provides corresponding first and second concentrated washing programs for different washing situations. The situation corresponding to the current washing water volume is determined based on the relationship between the first water volume and the preset value, and the corresponding program is selected. In the concentrated washing stage, this invention further selects the corresponding concentrated washing program based on the amount of water, thereby enabling the washing machine to adopt a more suitable concentrated washing program according to the specific situation, resulting in a higher washing ratio and better washing effect.
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Description

Technical Field

[0001] This invention relates to the field of washing machines, and more specifically, to a control method for a washing machine, a control device, and a washing machine. Background Technology

[0002] Washing machines are common household appliances, and various types of clothing handling devices have brought great convenience to people's lives. However, different control methods and strategies during the washing stage of a washing machine have different effects on the degree of cleaning of clothes. By changing the methods, the washing effect can be significantly improved, thereby achieving the effects of saving water, electricity, and time.

[0003] The three factors affecting a washing machine's cleaning ability are water, detergent, and mechanical force. Water acts as a medium, allowing stains to disperse and dissolve, while mechanical force helps to remove and peel off the stains.

[0004] Most existing washing machines follow a standard washing strategy: at the start of the wash cycle, the water level is set, either manually or automatically. Then, the water is filled, flushing detergent into the drum until the set water level is reached. The washing cycle then begins, with the pulsator rotating in both directions. After a certain washing time, the water is drained and the machine is spun dry.

[0005] Current washing technologies fail to adequately balance the effects of three washing factors: water volume, detergent concentration, and mechanical force. Existing technologies primarily rely on large amounts of water and strong mechanical force to accelerate the removal of stains from clothing, neglecting to enhance the washing power of the detergent during the washing process.

[0006] To enhance the washing power of detergents during the washing stage, it is necessary to increase the concentration of detergents in the washing water. However, how to increase the concentration of detergents in the washing water and how to control the operation of the machine in a high-concentration washing environment have become problems that urgently need to be solved in this field.

[0007] In view of this, the present invention is proposed. Summary of the Invention

[0008] To solve the above-mentioned technical problems, the present invention aims to provide a control method, a control device, and a washing machine. The operation of the washing machine includes a concentrated washing stage and a diluted washing stage. The corresponding concentrated washing program is selected according to the first water volume, so that the concentrated washing stage has a better washing effect and enhances the cleaning ability of the detergent on the clothes.

[0009] To solve the above-mentioned technical problems, the basic concept of the technical solution adopted by the present invention is as follows:

[0010] This invention provides a control method for a washing machine. The operation of the washing machine includes a concentration washing stage where water is introduced to a first water volume and a dilution washing stage where water is introduced to a target water volume. The control method for the washing machine includes the following steps:

[0011] S101: Receive instruction;

[0012] S102: Determine the first water volume according to the instruction;

[0013] S103: Determine whether the first water volume is greater than the preset value. If so, select the first concentrated wash program; otherwise, select the second concentrated wash program.

[0014] In the above technical solution, step S102 includes:

[0015] The target water volume is determined according to the instruction;

[0016] The first water volume is determined based on the target water volume as a preset percentage;

[0017] Preferably, the first water volume is 20% to 40% of the target water volume;

[0018] More preferably, the first water volume is 30% of the target water volume.

[0019] In the above technical solution, step S102 specifically includes:

[0020] The detergent dosage is obtained according to the instructions;

[0021] Obtain the target washing concentration for the concentrated washing stage;

[0022] The first water volume is determined based on the detergent dosage and the target washing concentration;

[0023] Preferably, the method further includes obtaining the detergent's factory concentration and determining the first water volume based on the detergent dosage, the detergent's factory concentration, and the target washing concentration.

[0024] In any of the above technical solutions, the washing machine has a circulation pump that draws washing water from the outer tub to the inner tub, wherein the preset value is greater than or equal to the minimum water volume required for the circulation pump to circulate.

[0025] In any of the above technical solutions, the preset value is less than or equal to the minimum amount of water that causes the drum to collide during the inner drum's rotation and dehydration.

[0026] In any of the above technical solutions, the first concentrated washing process includes:

[0027] The washing machine cycles through a first washing step that controls the rotation of the inner tub and / or the pulsator, and a first tumbling step that controls the forward and / or reverse rotation of the pulsator.

[0028] In any of the above technical solutions, the second concentrated washing process includes the following steps:

[0029] The washing machine cycles through a spin-water step that controls the inner tub and pulsator to rotate synchronously, a second tumbling step that controls the inner tub and / or pulsator to rotate forward and backward, and a second washing step that controls the inner tub and / or pulsator to rotate.

[0030] During the second washing step and / or the second tumbling step, the washing machine also controls the circulation pump to draw washing water from the outer tub and spray it back into the inner tub.

[0031] The present invention also provides a control device, comprising:

[0032] The receiving module is used to receive instructions;

[0033] The determining module is used to determine the first water volume according to the instruction;

[0034] The judgment module is used to determine whether the first water volume is greater than a preset value. If so, the first concentration wash program is selected; otherwise, the second concentration wash program is selected.

[0035] The above-mentioned technical solutions also include: a control module for controlling the washing machine to execute the selected first concentrated wash program or second concentrated wash program.

[0036] The present invention further provides a washing machine, including a memory, a processor, and a computer program stored in the memory and executable on the processor. When the processor executes the program, it implements the control method of the washing machine described in any of the above technical solutions.

[0037] During the concentrated washing stage, due to the small amount of water, two scenarios may occur. One is that although the water volume is small, washing can still be carried out, and the clothes can be fully tumbled and rubbed in the washing water, allowing the washing water to fully contact the clothes and achieve the purpose of concentrated washing. The other scenario is that the water volume is too small, causing the washing water to not be able to fully contact the clothes, thus resulting in the clothes not being washed thoroughly. If the water volume is increased further, the concentration of detergent in the washing water will decrease, failing to achieve the purpose of concentrated washing and affecting the effect of concentrated washing.

[0038] This invention provides a first concentrated wash program and a second concentrated wash program for two scenarios. The scenario corresponding to the current washing water volume is determined based on the relationship between the first water volume and the preset value, and the corresponding program is selected.

[0039] In the concentrated washing stage, the present invention further selects the corresponding concentrated washing program according to the amount of water, so that the washing machine can adopt a more suitable concentrated washing program according to the specific situation, resulting in a higher washing ratio and better washing effect.

[0040] The specific embodiments of the present invention will now be described in further detail with reference to the accompanying drawings. Attached Figure Description

[0041] The accompanying drawings, as part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments and descriptions of the invention are used to explain the invention, but do not constitute an undue limitation of the invention. Obviously, the drawings described below are merely some embodiments, and those skilled in the art can obtain other drawings based on these drawings without creative effort. In the drawings:

[0042] Figure 1 This is a schematic flowchart of a washing machine control method according to one embodiment of the present invention.

[0043] It should be noted that these accompanying drawings and textual descriptions are not intended to limit the scope of the invention in any way, but rather to illustrate the concept of the invention to those skilled in the art by referring to specific embodiments. Detailed Implementation

[0044] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0045] In the description of this invention, it should be noted that the terms "upper", "lower", "left", "right", "vertical", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0046] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0047] The following describes, with reference to illustrations, some embodiments of a washing machine control method, a control device, and a washing machine according to the present invention.

[0048] An embodiment of the first aspect of the present invention provides a control method for a washing machine, wherein the operation of the washing machine includes a concentrated washing stage with water entering to a first water volume and a diluted washing stage with water entering to a target water volume.

[0049] The concentrated washing stage refers to adding less water than the target amount in this stage, thereby increasing the concentration of detergent in the washing water. This allows the clothes to be agitated and washed in the washing water with a higher concentration of detergent, achieving concentrated washing. The high concentration of detergent allows the stains on the clothes to dissolve more fully in the washing water, effectively improving the cleaning effect.

[0050] The dilution washing stage refers to adding water to the washing machine to the target water volume after the concentration washing stage, thereby diluting the concentration of detergent in the washing water to a normal concentration. This makes it easier for the detergent with a higher concentration on the clothes to penetrate into the slightly lower concentration of the washing water, thus promoting the detergent to carry the stains into the washing water and further improving the cleaning effect.

[0051] Furthermore, the control method of this invention, without changing the water intake or detergent dosage, simply divides the washing process into a concentrated washing stage and a diluted washing stage to enhance the cleaning ability of the detergent on the laundry. Although this invention enables the laundry to be washed in high-concentration detergent water, since the total water intake and detergent dosage remain unchanged, it does not affect the dissolution and removal of detergent and stains in the subsequent rinsing stage, thus avoiding the problem of detergent residue.

[0052] like Figure 1 As shown, the washing machine control method provided in this embodiment includes at least the following steps:

[0053] S101: Receive instruction.

[0054] The washing machine receives instructions, which can be issued by the user through the washing machine's control panel or by a terminal connected to the washing machine. These instructions may include user-set washing modes (such as quick wash, gentle wash, down wash, etc.), set water temperature, and set time duration.

[0055] S102: Determine the first water volume according to the instruction.

[0056] The washing machine determines the first water volume based on the instruction. Specifically, the instruction may directly contain a specific first water volume value, or the washing machine may determine the first water volume based on other information in the instruction (such as the target water volume) and preset rules.

[0057] S103: Determine whether the first water volume is greater than the preset value. If so, select the first concentrated wash program; otherwise, select the second concentrated wash program.

[0058] During the concentrated washing stage, due to the small amount of water, two scenarios may occur. One is that although the water volume is small, washing can still be carried out, and the clothes can be fully tumbled and rubbed in the washing water, allowing the washing water to fully contact the clothes and achieve the purpose of concentrated washing. The other scenario is that the water volume is too small, causing the washing water to not be able to fully contact the clothes, thus resulting in the clothes not being washed thoroughly. If the water volume is increased further, the concentration of detergent in the washing water will decrease, failing to achieve the purpose of concentrated washing and affecting the effect of concentrated washing.

[0059] This embodiment provides a first concentrated wash program and a second concentrated wash program for two scenarios. The scenario corresponding to the current washing water volume is determined based on the relationship between the first water volume and the preset value, and the corresponding program is selected.

[0060] In the concentrated washing stage, the present invention further selects the corresponding concentrated washing program according to the amount of water, so that the washing machine can adopt a more suitable concentrated washing program according to the specific situation, resulting in a higher washing ratio and better washing effect.

[0061] In some embodiments, step S102 specifically includes:

[0062] Determine the target water volume according to the instructions;

[0063] The first water volume is determined based on the target water volume of a preset percentage.

[0064] The instruction includes the target water volume information. After receiving the instruction, the washing machine determines the target water volume according to the water volume setting in the instruction. This eliminates the need for the washing machine to weigh and calculate, making control simpler.

[0065] The washing machine has a preset relationship between the first water volume and the target water volume in the concentrated washing stage. The first water volume can be calculated based on the target water volume and the preset percentage. The calculation is simple and reduces the computational burden on the washing machine.

[0066] For example, if the preset percentage is set to a range of 20% to 40%, then the first water volume is the target water volume of 20% to 40%.

[0067] More preferably, the first water volume is 30% of the target water volume.

[0068] In some specific embodiments, determining the target water volume according to the instruction specifically includes: obtaining the set water intake volume according to the instruction. That is, the target water volume in the instruction is the value set by the user. Usually, the control panel of the washing machine provides multiple water volume levels. The user can select the corresponding water volume level according to different loads of clothes, and determine the target water volume according to the water volume level in the instruction. This eliminates the steps of weighing and calculating the washing machine, making control simpler.

[0069] Furthermore, to improve the matching between the target water volume and the amount of laundry, and to avoid waste or insufficient water, the system is configured to determine the target water volume based on instructions, specifically including:

[0070] Determine the amount of laundry according to the instructions;

[0071] Determine the target water volume based on the determined amount of laundry.

[0072] This eliminates the need for users to estimate and set the parameters. Instead, the washing machine weighs the laundry to determine its weight and then determines the target water volume based on the detergent settings. This method is more precise, helps achieve energy conservation and emission reduction, and eliminates the need for manual settings by the user, enhancing the product's automation and intelligence, which is more conducive to market promotion.

[0073] The above are just examples of methods for obtaining the target water volume. Those skilled in the art can use other methods to obtain the target water volume, such as obtaining image information of the laundry and determining the target water volume based on the image information. These will not be listed here.

[0074] In other embodiments, step S102 specifically includes:

[0075] Obtain the detergent dosage according to the instructions;

[0076] Obtain the target washing concentration for the concentrated washing stage;

[0077] The initial water volume is determined based on the detergent dosage and the target washing concentration.

[0078] Unlike the previous embodiments, this embodiment provides another method for determining the first water volume. This embodiment determines the water volume required to achieve the target washing concentration by considering the amount of detergent to be added and the target washing concentration. This method ensures controllability, consistency, and stability of the washing concentration during the concentrated washing stage. The target washing concentration can be included in the instructions, i.e., it can be a user-defined value or a preset value for the washing machine. This allows manufacturers to obtain the optimal washing concentration through extensive prior experiments or theoretical derivation, thereby guaranteeing the cleaning effect during the concentrated washing stage.

[0079] Furthermore, it also includes obtaining the detergent's factory concentration and determining the first water volume based on the detergent dosage, the detergent's factory concentration, and the target washing concentration.

[0080] Different brands of detergents have different concentrations. When detergents with different concentrations are added to the same amount of water, they are diluted to different degrees, resulting in different concentrations during the concentrated washing stage. In this embodiment, the first water volume is calculated by obtaining the detergent's factory concentration and combining it with the detergent dosage and the target washing concentration.

[0081] In some embodiments, the washing machine has a circulation pump that draws washing water from the outer tub to the inner tub. The circulation pump draws washing water from the outer tub and sprays it again onto the laundry, which facilitates full contact between the laundry and the washing water, and helps to accelerate the dissolution of the detergent, making the detergent more uniform, thereby improving the washing effect and washing efficiency in the concentrated washing process.

[0082] Among them, the preset value is greater than or equal to the minimum water volume required for the circulating pump to circulate.

[0083] The minimum water volume required for the circulation pump to operate normally without running dry is the lowest possible water volume. In this embodiment, the minimum water volume is used as a preset value as a reference. If the water volume is less than the minimum water volume required for circulation, it means that the water volume may not be sufficient to meet the washing requirements, thus affecting the second condensing wash cycle. Furthermore, this embodiment sets a preset value greater than or equal to the minimum water volume required for circulation, effectively preventing insufficient water intake during the condensing wash stage, which could cause the circulation pump to run dry due to insufficient water. This effectively protects the circulation pump and extends its service life.

[0084] Since different specifications of circulation pumps can cause them to run dry, this embodiment does not specify a minimum amount of water required for the circulation pump to circulate. Those skilled in the art can set it according to the actual situation.

[0085] In some embodiments, a preset value is set to the minimum amount of water that causes the inner tub to collide during the spin-drying process.

[0086] In this embodiment, the minimum water volume that causes the drum to collide during the inner tub's rotation and spin-drying process is used as the preset value as a reference. It is understandable that the inner tub is prone to significant shaking when rotating at high speed with washing water present. Violent shaking can easily lead to a collision. The more water there is, the greater the risk of collision; the less water, the lower the risk. When the water volume exceeds the minimum water volume that causes a collision during the inner tub's rotation and spin-drying process, it means that this water volume is likely sufficient for washing and is suitable for the first condensing wash program. Furthermore, this embodiment sets the preset value to be less than or equal to the minimum water volume that causes a collision during the inner tub's rotation and spin-drying process, effectively avoiding the risk of drum shaking and collision due to excessive water intake. This makes the machine's operation more stable and quieter during the condensing wash stage, improving the user experience.

[0087] Since the amount of water that can cause the drum to shake or collide varies depending on the product specifications, this embodiment does not specify a minimum amount of water that will cause the drum to collide during the inner drum's rotation and dehydration process. Those skilled in the art can set this amount according to the actual situation.

[0088] In some embodiments, the first concentrated wash procedure includes the following steps:

[0089] The washing machine cycles through a first washing step that controls the rotation of the inner tub and / or the pulsator, and a first tumbling step that controls the forward and / or reverse rotation of the pulsator.

[0090] In detail, the first washing step can be controlled by rotating the inner tub, rotating the pulsator, or rotating both the inner tub and the pulsator. The specific control can be referred to the control of the dilution washing stage.

[0091] In the first shaking and scattering step, the inner tub can be controlled to rotate forward and backward, the impeller can be controlled to rotate forward and backward, or both the inner tub and the impeller can be controlled to rotate forward and backward. The rotation directions of the inner tub and the impeller can be the same or opposite.

[0092] The first concentrated wash program corresponds to the situation where washing can still be performed even with a small amount of water. In this embodiment, washing is performed through the first washing step. Due to the small amount of water in the concentrated washing stage, the laundry can easily become tangled together during the rotation of the impeller and / or the inner tub. It can also cause the laundry to stick tightly to the inner tub wall under the action of water. This results in the laundry not being able to fully contact the washing water, affecting the washing effect. The control method of the present invention alternately executes the first washing step and the first shaking step. The first shaking step shakes the tangled laundry apart, allowing the laundry to fully tumble and rub in the washing water, thereby greatly improving the concentrated washing effect.

[0093] In some embodiments, the washing machine controls the inner tub and / or the pulsator to rotate at a first speed for a first preset time in the first washing step, and controls the pulsator and / or the pulsator to rotate in both directions at a second speed for a second preset time in the first shaking step, wherein the first speed is less than the second speed.

[0094] Setting the first washing cycle to a lower spin speed is more conducive to improving the washing effect, while the first shaking cycle has a higher spin speed. The higher spin speed increases the shaking force, allowing the laundry to be shaken more quickly and effectively.

[0095] For example, the first speed ranges from 15 rpm to 60 rpm.

[0096] Preferably, the first rotational speed is in the range of 30 rpm.

[0097] For example, the range of the second speed is 80 rpm to 150 rpm;

[0098] Preferably, the second rotational speed is in the range of 100 rpm.

[0099] Furthermore, the first preset time is longer than the second preset time, and the washing time is longer than the shaking time. This helps to shorten the washing time while achieving the washing effect.

[0100] Furthermore, the ratio of the first preset duration to the second preset duration is 3 to 7.

[0101] More preferably, the ratio of the first preset duration to the second preset duration is 5.

[0102] For example, the first preset duration ranges from 30s to 70s;

[0103] Preferably, the first preset duration is 50 seconds.

[0104] For example, the second preset duration ranges from 5s to 15s.

[0105] Preferably, the second preset duration is 10 seconds.

[0106] In some embodiments, to further enhance the shaking effect, the first rotation speed is set to be proportional to the second rotation speed. It is understood that during washing, the faster the impeller rotates, the stronger the water flow, resulting in better washing and more severe tangling of the laundry. Conversely, during shaking, the faster the rotation speed, the greater the shaking force. Thus, when the first rotation speed is higher, the washing effect is better, and when the laundry is more tangled, the second rotation speed is higher, thereby increasing the shaking force and improving the shaking effect. Furthermore, a more suitable speed difference between the first and second speeds allows for a stronger water flow to be generated when the first washing step stops and the first shaking step begins, further enhancing the shaking force.

[0107] For example, the ratio of the first rotation speed to the second rotation speed is 0.2 to 0.4. This results in a better speed difference between the first and second speeds, which can generate a stronger water flow when the first washing step stops and the first shaking step begins, thus making it more conducive to improving the shaking force.

[0108] Preferably, the ratio of the first speed to the second speed is 0.3.

[0109] In some embodiments, the washing machine controls the inner tub and / or the pulsator to rotate forward and backward at a first rotation-stop ratio during the first washing step, and controls the pulsator and / or the pulsator to rotate forward and backward at a second rotation-stop ratio during the first swishing step, wherein the first rotation-stop ratio is less than or equal to the second rotation-stop ratio.

[0110] The spin-stop ratio refers to the ratio of the time the washing machine's motor drives the inner tub and / or pulsator to rotate to the time it stops. The more time it rotates and the less time it stops, the larger the spin-stop ratio; conversely, the less time it rotates and the more time it stops, the smaller the spin-stop ratio. In this embodiment, the first spin-stop ratio is set to be less than or equal to the second spin-stop ratio. The larger the spin-stop ratio, the more frequently the inner tub and / or pulsator rotate in both directions, thereby allowing the laundry to be shaken and dispersed under greater shaking force, thus improving the shaking effect.

[0111] For example, the ratio of the first turnaround ratio to the second turnaround ratio ranges from 0.2 to 0.5.

[0112] More preferably, the ratio of the first turnaround stop ratio to the second turnaround stop ratio is 0.43.

[0113] For example, the second turn-stop ratio is (0.8 to 1.2) / (0.3 to 0.7).

[0114] To be more specific, the second turnaround time is 1.0 / 0.5.

[0115] In some embodiments, step S102 further includes:

[0116] During the first washing step and / or the first tumbling step, the washing machine also controls the circulation pump to draw washing water from the outer tub and spray it back into the inner tub.

[0117] In this embodiment, the washing water in the outer tub is drawn out by a circulating pump and sprayed back onto the laundry. This facilitates full contact between the laundry and the washing water, and accelerates the dissolution of the detergent, resulting in a more uniform detergent concentration and thus improving the washing effect and efficiency during the concentrated washing process.

[0118] Furthermore, the wash water is heated to a preset temperature during the operation of the circulation pump. Heating the wash water further promotes the dissolution of the detergent, resulting in a more uniform detergent distribution. The preset temperature can be a pre-defined temperature that is conducive to detergent dissolution.

[0119] More preferably, the preset temperature range is 28℃~35℃;

[0120] More preferably, the preset temperature range is 30℃~32℃.

[0121] In some embodiments, the second concentrated wash process includes the following steps:

[0122] The washing machine cycles through a spin-water step that controls the inner tub and pulsator to rotate synchronously, a second tumbling step that controls the inner tub and / or pulsator to rotate forward and backward, and a second washing step that controls the inner tub and / or pulsator to rotate.

[0123] During the second washing step and / or the second tumbling step, the washing machine also controls the circulation pump to draw washing water from the outer tub and spray it back into the inner tub.

[0124] In detail, the second washing step can be controlled by rotating the inner tub, rotating the pulsator, or rotating both the inner tub and the pulsator. The specific control can be referred to the control of the dilution washing stage.

[0125] In the second shaking step, the inner tub can be controlled to rotate forward and backward, the impeller can be controlled to rotate forward and backward, or both the inner tub and the impeller can be controlled to rotate forward and backward. The rotation directions of the inner tub and the impeller can be the same or opposite.

[0126] The second concentrated wash program addresses situations where the water volume is insufficient for washing. In this embodiment, the second washing step addresses this issue. Due to the insufficient water volume during the concentrated wash stage, the laundry cannot fully contact the washing water during the rotation of the pulsator and / or inner tub. Therefore, a spin-drying step is first executed, which controls the synchronous rotation of the inner tub and pulsator. This high-speed synchronous rotation of the inner tub and pulsator spins the washing water from the inner tub and the clothes into the outer tub. Then, a circulation pump draws water from the outer tub and discharges it back into the inner tub for washing. To further improve the washing effect, a second shaking and untangling step is executed after the spin-drying step, which untangles the clothes and increases the contact area between the clothes and the washing water, ensuring that the clothes are thoroughly washed. This significantly improves the concentrated wash effect.

[0127] A specific embodiment

[0128] This embodiment automatically identifies and distinguishes between two pre-wash programs based on the water volume set during washing, and selects the corresponding pre-wash program for different water volume conditions.

[0129] Obtain the weight of the laundry and determine the total water intake (i.e., the water volume for the dilution washing stage) and the amount of detergent to add based on the weight of the laundry; of course, the weighing step can be omitted, and the total water intake can be determined based on the water volume set by the user.

[0130] The water intake for the concentration and washing stage is determined based on 1 / 3 of the total water intake.

[0131] Determine if the water intake during the concentrated washing stage is greater than the preset value. If so, select the first concentrated washing program; otherwise, select the second concentrated washing program.

[0132] The preset value can be set with reference to whether the circulating pump can circulate the water volume.

[0133] In the first concentrated wash program, the cycle of circulation pump circulation - first wash step - first shake and walk - circulation pump recirculation is performed.

[0134] More specifically, the washing water is first heated to a preset temperature (e.g., 32°C). During the heating process, the washing water is simultaneously circulated from the bottom of the outer tub to the outer tub lid and sprayed downwards by a circulation pump. At the same time, the inner tub and pulsator rotate with the clothes during the water circulation process, which is the first washing step and makes the clothes soak better. After a period of time, the pulsator rotates in both directions to shake the tangled clothes apart. This process is repeated cyclically during the pre-wash stage.

[0135] During the entire operation, heating will be activated when the water temperature is detected to be lower than the preset temperature.

[0136] In the second concentrated wash cycle, the cycle repeats: circulation pump circulation - spin-drying step - second shaking step - second washing step - circulation pump restart. It should be noted that the cycle can begin at any of the first, second, or third steps.

[0137] More specifically, the water is first heated to 32°C, then heating is stopped. A circulation pump circulates the water from the bottom of the outer tub to the outer lid, where it is sprayed downwards. Simultaneously, the inner tub and pulsator rotate with the clothes during this water circulation, improving soaking efficiency. After a period of time, a low-speed spin-drying process begins, shaking the water from the clothes between the inner and outer tubs, and then the pulsator further disperses the water. During this process, the water is reheated to the preset temperature, and this cycle is repeated periodically.

[0138] During the entire operation, heating will be activated when the water temperature is detected to be lower than the preset temperature.

[0139] A second aspect of the present invention provides a control device for a washing machine, comprising:

[0140] The receiving module is used to receive instructions;

[0141] The determination module is used to determine the first water volume based on the instruction.

[0142] The judgment module is used to determine whether the first water volume is greater than the preset value. If so, the first concentrated wash program is selected; otherwise, the second concentrated wash program is selected.

[0143] In some embodiments, a control module is also included for controlling the washing machine to perform a selected first condensing wash program or a second condensing wash program.

[0144] A third aspect of the present invention provides a washing machine, including a memory, a processor, and a computer program stored in the memory and executable on the processor. When the processor executes the program, it implements the washing machine control method as described in any of the above embodiments.

[0145] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-described technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A control method for a washing machine, characterized in that, The operation of the washing machine includes a concentrated washing stage where water is introduced to a first water volume and a diluted washing stage where water is introduced to a target water volume. The control method of the washing machine includes the following steps: S101: Receive instruction; S102: Determine the first water volume according to the instruction; S103: Determine whether the first water volume is greater than the preset value. If so, select the first concentrated wash program; otherwise, select the second concentrated wash program. The washing machine has a circulation pump that draws washing water from the outer tub to the inner tub, wherein the preset value is greater than or equal to the minimum amount of water required to circulate the water for the circulation pump. The first concentrated washing process includes: The washing machine cyclically performs a first washing step that controls the rotation of the inner tub and / or the pulsator and a first tumbling step that controls the forward and / or reverse rotation of the pulsator; The second concentrated washing process includes the following steps: The washing machine cycles through a spin-water step that controls the inner tub and pulsator to rotate synchronously, a second tumbling step that controls the inner tub and / or pulsator to rotate forward and backward, and a second washing step that controls the inner tub and / or pulsator to rotate. During the second washing step and / or the second shaking step, the washing machine also controls the circulation pump to draw washing water from the outer tub and spray it back into the inner tub.

2. The control method for a washing machine according to claim 1, characterized in that, Step S102 includes: The target water volume is determined according to the instruction; The first water volume is determined based on the target water volume as a preset percentage.

3. The control method for a washing machine according to claim 2, characterized in that, The first water volume is 20% to 40% of the target water volume.

4. The control method for a washing machine according to claim 2, characterized in that, The first water volume is 30% of the target water volume.

5. The control method for a washing machine according to claim 1, characterized in that, Step S102 specifically includes: The detergent dosage is obtained according to the instructions; Obtain the target washing concentration for the concentrated washing stage; The first water volume is determined based on the detergent dosage and the target washing concentration.

6. The control method for a washing machine according to claim 5, characterized in that, It also includes obtaining the detergent's factory concentration and determining the first water volume based on the detergent dosage, the detergent's factory concentration, and the target washing concentration.

7. A control device for executing the control method of a washing machine as described in any one of claims 1 to 6, characterized in that, include: The receiving module is used to receive instructions; The determining module is used to determine the first water volume according to the instruction; The judgment module is used to determine whether the first water volume is greater than a preset value. If so, the first concentration wash program is selected; otherwise, the second concentration wash program is selected. The control module is used to control the washing machine to execute the selected first or second concentrated wash program.

8. A washing machine, characterized in that, It includes a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein when the processor executes the program, it implements the control method of the washing machine as described in any one of claims 1 to 6.

Citation Information

Patent Citations

  • Washing machine control method and device and washing machine

    CN116676746A