Detergent putting control method and clothes treatment equipment

Abstract

The invention belongs to the technical field of clothes treatment equipment, and discloses a detergent putting control method and clothes treatment equipment, and the detergent putting control method comprises the steps: determining the estimated putting amount S0 of a detergent; the release operation of the release amount S is executed, wherein S is smaller than S0; detecting the amount of foam in the washing drum after a preset duration; if the detected foam amount is lower than the foam threshold value, the operation of supplementing the detergent is executed. In the invention, the putting amount S when the detergent is put for the first time is smaller than the estimated putting amount S0, and whether the detergent is continuously added or not is controlled according to the condition that the foam is generated in the washing drum after the detergent is put, so that the actual putting amount of the detergent can be more accurately controlled, and particularly, the situation that the washing time is prolonged due to the fact that the detergent is put too much at a time can be avoided; and detergent residues are easily caused.

Description

Technical Field

[0001] The present invention belongs to the technical field of clothing processing equipment, and in particular, relates to a detergent delivery control method and clothing processing equipment. Background Art

[0002] When the washing machine is executing the washing program, the amount of detergent added will have a great impact on the washing result. If insufficient detergent is added, the clothes will not be washed thoroughly and the dirt removal effect will be poor. If excessive detergent is added, it will cause waste, and it will be more difficult to wash off the foam in the subsequent rinsing stage, which may easily lead to the problem of detergent residue.

[0003] Most washing machines with automatic dispensing functions currently control the amount of detergent dispensed by weighing the clothes or detecting the turbidity of the washing water. However, there are often large errors in the weighing of clothes or the turbidity detection of the washing water, which will result in inaccurate control of the amount of detergent dispensed, and may cause too much or too little detergent to be dispensed. In particular, if too much detergent is dispensed in the initial stage of the washing process, it is difficult to effectively remedy the situation, which may cause foam overflow during the subsequent washing process and may also increase the running time of the washing process and waste energy.

[0004] In view of this, the present invention is proposed. Summary of the invention

[0005] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art and provide a detergent dosing control method and a clothing processing device, which reduces the amount of detergent added during the first dosing and controls whether to continue to add detergent according to the foam generated in the washing drum, thereby achieving more precise control of the detergent dosing amount.

[0006] In order to solve the above technical problems, the basic concept of the technical solution adopted by the present invention is:

[0007] A method for controlling the dispensing of detergent, characterized by comprising:

[0008] Determine the estimated amount of detergent to be added S0;

[0009] Execute a delivery operation of delivery amount S, where S<S0;

[0010] After a preset time, the amount of foam in the washing drum is detected;

[0011] If the detected foam amount is lower than the foam threshold, the detergent replenishment operation is performed.

[0012] Furthermore, if the detected foam amount is greater than or equal to the foam threshold, the detergent addition process is terminated.

[0013] Further, the following steps are included:

[0014] S11, determining the estimated amount of detergent to be put in S0;

[0015] S12, executing a delivery operation of delivery amount S=a×S0, where 0<a<1;

[0016] S13, after a preset time, detecting the amount of foam in the washing tub;

[0017] S14. If the detected foam amount is lower than the foam threshold, the detergent addition operation of the amount S' is performed, and the process returns to step S13; otherwise, the detergent addition process ends.

[0018] Furthermore, the method further includes: detecting the concentration of active ingredients of detergent in the washing water, and controlling whether to perform the operation of adding detergent according to the concentration of active ingredients of detergent and the amount of foam in the washing tub.

[0019] Furthermore, before detecting the amount of foam in the washing tub, the concentration of the active ingredient in the detergent is detected first. If the concentration of the active ingredient in the detergent is lower than a preset concentration, the amount of foam in the washing tub is detected.

[0020] Furthermore, if the detected concentration of the active ingredient of the detergent is greater than or equal to a preset concentration, or the detected foam amount is greater than or equal to a foam threshold, the detergent addition process is terminated.

[0021] Further, the following steps are included:

[0022] S21, determining the estimated amount of detergent to be put in S0;

[0023] S22, executing a delivery operation of delivery amount S=b×S0, where 0<b<1;

[0024] S23, after a preset time, detecting the concentration of active ingredients of the detergent in the washing water;

[0025] S24, if the detected concentration of the active ingredient of the detergent is lower than the preset concentration, execute step S25, otherwise execute step S27;

[0026] S25, detecting the amount of foam in the washing tub, if the detected amount of foam is lower than the foam threshold, executing step S26, otherwise executing step S27;

[0027] S26, perform the operation of adding detergent in an amount S', and return to step S23;

[0028] S27, ending the detergent adding process.

[0029] Furthermore, the determining of the estimated amount of detergent to be added S0 includes: obtaining wash load information, and determining the estimated amount of detergent to be added S0 according to the wash load information.

[0030] Furthermore, the washed load information includes: the weight of the washed load, or the turbidity value of the washing water during the soaking process of the washed load.

[0031] A clothes processing device uses the above-mentioned detergent delivery control method.

[0032] After adopting the above technical scheme, the present invention has the following beneficial effects compared with the prior art.

[0033] In the present invention, the amount S of detergent added for the first time is controlled to be less than the estimated amount S0, and whether to continue to add detergent is controlled according to the foam generated in the washing drum after the addition is completed. In this way, the actual amount of detergent added can be more accurately controlled to match the actual situation of this washing, especially it can avoid excessive detergent addition at one time to generate a large amount of foam, resulting in increased washing time, energy waste, and detergent residue after washing.

[0034] In the present invention, whether to continue to add detergent is controlled based on the concentration of the active ingredient of the detergent and the amount of foam. For detergents with different foaming effects, the total amount of detergent added can be accurately controlled to match the actual situation. During the addition process, when one of the concentration of the active ingredient of the detergent and the amount of foam reaches the corresponding standard, the addition process is terminated. For different types of detergents such as concentrated detergents, low-foaming detergents and high-foaming detergents, it can be achieved that the amount of detergent added is sufficient and the excessive amount of foam that causes excessive washing time is avoided.

[0035] The specific implementation modes of the present invention are further described in detail below in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] The accompanying drawings are part of the present invention and are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention, but do not constitute an improper limitation of the present invention. Obviously, the drawings described below are only some embodiments. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. In the accompanying drawings:

[0037] Figure 1 is a flow chart of the delivery control method in Embodiment 1 of the present invention;

[0038] Figure 2 is a detailed flow chart of the delivery control method in Embodiment 1 of the present invention;

[0039] Figure 3 is a flow chart of a delivery control method in Embodiment 2 of the present invention;

[0040] Figure 4 is a detailed flow chart of the delivery control method in the second embodiment of the present invention;

[0041] Figure 5 is a flow chart of a delivery control method in Embodiment 3 of the present invention;

[0042] Figure 6 It is a flow chart of another delivery control method in Embodiment 3 of the present invention.

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

[0044] In order to make the purpose, 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 in conjunction with the drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention but are not used to limit the scope of the present invention.

[0045] In the description of the present invention, it should be noted that the directions or positional relationships indicated by terms such as “upper”, “lower”, “front”, “back”, “left”, “right”, “vertical”, “inside” and “outside” are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0046] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0047] An embodiment of the present invention provides a laundry processing device and a method for controlling the delivery of detergent used in the laundry processing device, wherein the laundry processing device may be a washing machine, a washer-dryer, or other device capable of performing laundry functions.

[0048] Specifically, the laundry processing device includes a washing drum for holding the load to be washed. The laundry processing device has an automatic delivery function, and when the laundry program is running, detergent can be automatically delivered to the washing drum for washing the load in the drum. However, in the actual operation process, if the delivery amount of detergent does not match the current washing situation, the washing effect will be affected.

[0049] Embodiment 1

[0050] This embodiment is used to solve the problem of inaccurate control of the amount of detergent added by the above-mentioned clothing processing equipment.

[0051] Specifically, this embodiment provides a method for controlling the dispensing of detergent for a clothing treatment device, and a clothing treatment device using the dispensing control method. The clothing treatment device may be a washing machine, a washer-dryer, or other device capable of performing a laundry function.

[0052] like Figure 1 As shown, the delivery control method includes:

[0053] Determine the estimated amount of detergent to be added S0;

[0054] Execute a delivery operation of delivery amount S, where S<S0;

[0055] After a preset time, the amount of foam in the washing drum is detected;

[0056] If the detected foam amount is lower than the foam threshold, the detergent replenishment operation is performed.

[0057] In the above solution, the clothes processing device can determine the estimated amount of detergent S0 in an existing manner, for example, the corresponding estimated amount of detergent S0 is calculated according to the washing water level, the load amount, etc. Afterwards, when the clothes processing device first puts the detergent in this washing program, the amount of detergent S put in for the first time is controlled to be less than the estimated amount of detergent S0. In this way, when the calculation of the estimated amount of detergent S0 is not accurate enough, it can avoid the problem of excessive detergent being put in at one time, causing excessive foam, and increasing the running time of the washing program.

[0058] The clothes processing device described in this embodiment is provided with a foam detection device. After the detergent is added for the first time, the clothes processing device waits for a preset time and then detects the amount of foam in the washing drum through the foam detection device. When the detected foam value is low, the detergent will continue to be added to ensure that the detergent is added in sufficient amount, avoiding the washing effect being affected by too little detergent.

[0059] Furthermore, in this embodiment, if the detected foam amount is greater than or equal to the foam threshold, it means that sufficient detergent has been added. At this time, the detergent addition process can be ended and the clothing processing device continues to run the subsequent stage of the washing program.

[0060] In this embodiment, the foam threshold is the amount of foam in the washing tub when the clothes processing device meets the load cleaning standard. Specifically, the amount of foam in the washing tub when the load cleaning standard is met can be obtained through a large number of previous tests, and the value of the foam amount is preset as the foam threshold in the control program of the clothes processing device.

[0061] After the laundry processing device has completed the operation of adding detergent, it waits for a preset time before detecting the amount of foam, to ensure that the added detergent is fully foamed, and to avoid misjudgment of insufficient amount due to insufficient foaming of the detergent. The preset time can be set to, for example, 1 minute, and preferably, during the waiting period of the preset time, the laundry processing device is controlled to stir the washing water in the washing tub to a certain extent, thereby accelerating the dissolution and foaming of the detergent.

[0062] For example, for a drum-type laundry processing device, the washing drum can be controlled to rotate alternately forward and reverse at a certain speed during the waiting period. Alternatively, for a pulsator-type laundry processing device, the pulsator and / or the washing drum can be controlled to rotate alternately forward and reverse at a certain speed during the waiting period. The speed of the pulsator / washing drum during the waiting period can be lower than the speed of the pulsator / washing drum during the washing stage of the laundry program, so as to ensure that the detergent already put in can be fully dissolved and foamed.

[0063] In a further scheme of this embodiment, when the clothing processing device detects that the amount of foam in the washing drum is lower than the foam threshold and then performs the operation of adding detergent, the amount of foam in the washing drum will be detected again, and based on the comparison result between the detected amount of foam and the foam threshold, it controls whether to continue to add detergent.

[0064] Specifically, each time the laundry processing device performs the operation of adding detergent, it waits for a preset time and then detects the amount of foam in the washing drum. When the detected amount of foam is greater than or equal to the foam threshold, the detergent addition process is terminated and the laundry program continues to run. If the detected amount of foam is less than the foam threshold, the operation of adding detergent is performed. This is repeated until the amount of foam is greater than or equal to the foam threshold, and the laundry program can continue to run.

[0065] Preferably, the amount S' of detergent added each time by the laundry treatment device is the same, which is conducive to simplifying the control logic. The amount S' is smaller than the amount S added for the first time, avoiding the problem of excessive detergent addition caused by performing a single detergent addition operation.

[0066] Furthermore, in this embodiment, the amount S of the first dose is calculated based on the estimated amount S0, specifically, the amount S = a × S0, where 0 < a < 1. In this way, when the laundry treatment device runs a laundry program each time, the amount S of the first dose of the laundry treatment agent is kept in a fixed proportional relationship with the estimated amount S0 of this time, making it easier to accurately control the overall amount of detergent in this laundry program to match the actual laundry demand through subsequent foam amount detection and the operation of adding detergent.

[0067] In detail, the method for controlling the placement of detergent in this embodiment is as follows: Figure 2 As shown, the following steps are included:

[0068] S11, determining the estimated amount of detergent to be put in S0;

[0069] S12, executing the delivery operation of delivery amount S=a×S0;

[0070] S13, after a preset time, detecting the amount of foam in the washing tub;

[0071] S14. If the detected foam amount is lower than the foam threshold, the detergent addition operation of the amount S' is performed, and the process returns to step S13; otherwise, the detergent addition process ends.

[0072] In the above scheme, after the laundry program starts, the laundry processing device first dispenses a small amount of detergent according to the estimated dosage S0, and then repeatedly performs foam amount detection and additional detergent dosage, so that the foam amount in the washing drum is finally equal to or slightly exceeds the foam threshold. At this point, the laundry processing device ends the detergent dosage process and continues to run the subsequent stages of the laundry program, which can ensure that the overall amount of detergent dispensed is accurately matched to the load being washed.

[0073] In this embodiment, when the laundry processing device runs a laundry program, the amount of detergent S added when the detergent is first added is controlled to be less than the estimated amount of detergent S0. When the estimated amount of detergent S0 is not accurate enough, it can avoid excessive detergent addition at one time, resulting in excessive foam during the washing process, which causes energy waste. After the detergent is added for the first time, the laundry processing device controls whether to continue to add detergent according to the foam generated in the washing drum. When the amount of foam in the washing drum is insufficient, the detergent is added once or multiple times until the amount of foam reaches or exceeds the foam threshold, and then the laundry program is continued. In the above manner, the control of the amount of detergent added is more accurate, and the influence of less or more detergent on the washing effect is effectively avoided.

[0074] Embodiment 2

[0075] The difference between this embodiment and the above-mentioned embodiment 1 is that the said dosage control method further comprises detecting the concentration of the active ingredient of the detergent in the washing water, and the clothing processing device controls whether to perform the operation of adding detergent according to the concentration of the active ingredient of the detergent and the amount of foam in the washing drum.

[0076] Specifically, Figure 3 As shown, in this embodiment, the laundry processing device first determines the estimated amount of detergent S0, and then performs the operation of adding the amount S. After a preset time, before detecting the amount of foam in the washing tub, the concentration of the active ingredient of the detergent in the washing water is first detected. If the concentration of the active ingredient of the detergent is lower than the preset concentration, the amount of foam in the washing tub is detected. When the amount of foam is lower than the foam threshold, the operation of adding more detergent is performed.

[0077] Furthermore, if the detected concentration of the active ingredient of the detergent is greater than or equal to the preset concentration, the detergent adding process is terminated and the amount of foam in the washing drum is no longer detected. If the concentration of the active ingredient of the detergent is less than the preset concentration, but the detected amount of foam is greater than the foam threshold, the detergent adding process is also terminated and the subsequent stage of the washing program is continued.

[0078] A general detergent includes at least surfactants, solvents and cosolvents, among which the surfactant is the active ingredient that plays a major role in separating stains from fabrics during the laundry process. Of course, for detergents of different types and functions, the active ingredients may include synergists, anti-soil redeposition agents, etc. in addition to surfactants. The concentrations of active ingredients in detergents of different brands or types are not the same, so when the dosage is the same, the actual amount of active ingredients added may not be the same, and the cleaning effect on the load may also be different.

[0079] In this embodiment, the concentration of the active ingredient of the detergent in the washing water refers to the concentration of active ingredients such as surfactants in the washing water when the detergent is dissolved in the washing water. Specifically, the clothing treatment device is provided with a concentration detection device, and after the detergent has been added to the washing water, the concentration of the active ingredient of the detergent in the washing water can be obtained by the concentration detection device, and the concentration of the active ingredient of the detergent in the washing water is preferentially used to judge whether the current amount of detergent added is sufficient.

[0080] The preset concentration is the concentration of active ingredients such as surfactants required in the washing water when the laundry treatment device meets the load cleaning standard. Specifically, the value of the preset concentration can be obtained through a large number of previous experiments and preset in the control program of the laundry treatment device.

[0081] When the concentration of the active ingredient of the detergent reaches the preset concentration, it means that the active ingredient content in the washing water is sufficient to clean the load in the drum, that is, the detergent has been added in sufficient amount, and the detergent addition process can be ended. If the concentration of the active ingredient of the detergent is low, the foam amount is further detected for judgment. When the foam amount is sufficient, no more addition is performed. If the foam amount is also low, it means that the detergent is insufficient and it is necessary to perform the operation of adding more detergent.

[0082] Similar to the first embodiment above, in this embodiment, after the detergent addition operation is completed, it is necessary to wait for a preset time and then detect the concentration of the active ingredient of the detergent, and preferably stir the washing water during the waiting period. In this way, it can be ensured that the detergent that has been added is fully dissolved in the water, so that the active ingredients therein are evenly dispersed in the washing water, and it is avoided that the local concentration of the active ingredients is too high or too low to affect the concentration detection result, thereby causing the clothing processing device to misjudge whether the detergent is added in sufficient amount.

[0083] In a further scheme of this embodiment, when the amount of foam detected by the clothing processing equipment is lower than the foam threshold, and then the operation of adding detergent is performed, the concentration of the active ingredient of the detergent in the washing water is detected again. If it reaches the preset concentration, the addition process is terminated. Otherwise, the amount of foam is detected again, and whether to continue to add detergent is controlled based on whether the amount of foam reaches the foam threshold.

[0084] Specifically, each time the laundry processing device performs the operation of adding detergent, it waits for a preset time and then detects the concentration of the active ingredient of the detergent in the washing water. When it is greater than or equal to the preset concentration, the detergent addition process is terminated and the laundry program continues to run. If it is less than the preset concentration, the amount of foam in the washing drum is detected again. When the amount of foam is greater than or equal to the foam threshold, the process can be terminated, otherwise the operation of adding detergent is performed. This is repeated until it is detected that the concentration of the active ingredient of the detergent is greater than or equal to the preset concentration, or the amount of foam is detected to be greater than or equal to the foam threshold, and the laundry program can continue to run.

[0085] In the above-mentioned adding process, the amount S' of detergent added by the laundry processing device each time is the same and is smaller than the amount S added during the first adding.

[0086] Furthermore, in this embodiment, the amount S of the first dose is calculated based on the estimated amount S0, specifically, the amount S = b × S0, where 0 < b < 1. In this way, when the laundry treatment device runs a laundry program each time, the amount S of the first dose of the laundry treatment agent and the estimated amount S0 of this time maintain a fixed proportional relationship, which makes it easier to pass the subsequent effective concentration detection and foam amount detection, and cooperate with the operation of adding detergent, and accurately control the overall amount of detergent in this laundry program to match the actual laundry demand.

[0087] In detail, the method for controlling the placement of detergent in this embodiment is as follows: Figure 4 As shown, the following steps are included:

[0088] S21, determining the estimated amount of detergent to be put in S0;

[0089] S22, executing a delivery operation of delivery amount S=b×S0;

[0090] S23, after a preset time, detecting the concentration of active ingredients of the detergent in the washing water;

[0091] S24, if the detected concentration of the active ingredient of the detergent is lower than the preset concentration, execute step S25, otherwise execute step S27;

[0092] S25, detecting the amount of foam in the washing tub, if the detected amount of foam is lower than the foam threshold, executing step S26, otherwise executing step S27;

[0093] S26, perform the operation of adding detergent in an amount S', and return to step S23;

[0094] S27, ending the detergent adding process.

[0095] In the above scheme, after the laundry program starts, the clothing treatment device first puts in a small amount of detergent according to the estimated amount S0, and then preferentially detects the concentration of the active ingredient of the detergent in the washing water for judgment. If the concentration is insufficient, the foam amount is detected. If it is determined that the detergent is insufficient, the detergent is added. The above process is repeated, and eventually the concentration of the active ingredient of the detergent in the washing water is just equal to or slightly higher than the preset concentration, or the amount of foam in the washing drum is just equal to or slightly higher than the foam threshold. At this point, the clothing treatment device ends the detergent addition process and continues to run the subsequent stages of the laundry program, which can ensure that the overall amount of detergent added is accurately matched to the load to be washed.

[0096] In this embodiment, the clothing treatment device controls whether to continue to add detergent according to the concentration of the active ingredients of the detergent in the washing water and the amount of foam in the washing drum, so that the dosing control method can be adapted to detergents with different foaming effects, avoiding the problem of excessive dosing of low-foaming detergents when only controlling the amount of foam. During the detergent dosing process, when one of the concentration detection and the foam amount detection reaches the corresponding standard, the detergent dosing process is terminated and the subsequent process of the washing program is continued. In this way, for different types of detergents such as concentrated detergents, low-foaming detergents and high-foaming detergents, it can be achieved that the amount of detergent added is sufficient to ensure the cleaning effect, and the problem of excessive foam causing excessive washing time is avoided.

[0097] Embodiment 3

[0098] This embodiment is a further limitation of the above-mentioned embodiment 1 or 2, and the estimated delivery amount S0 is determined by the wash load information.

[0099] Specifically, in this embodiment, the delivery control method further includes: acquiring the wash load information, and determining the estimated delivery amount S0 of the detergent according to the wash load information.

[0100] As a specific implementation of this embodiment, the clothing processing device has a load weighing function, and the washed load information is the weight of the washed load.

[0101] Specifically, the clothing processing equipment is provided with a weighing device. After the clothing processing equipment is turned on, when it is detected that a load is put into the washing drum, the load in the drum is weighed by the weighing device to obtain the weight of the load washed by this washing program, and then water is added to the washing drum.

[0102] More specifically, if Figure 5 As shown, the detergent delivery control method includes:

[0103] Get the weight of the load being washed;

[0104] Determine the estimated amount S0 based on the weight of the load to be washed;

[0105] Execute a delivery operation of delivery amount S, where S<S0;

[0106] After a preset time, the effective concentration of detergent in the washing water or the amount of foam in the washing tub is detected;

[0107] The operation of adding detergent is controlled according to the detection result.

[0108] In the above scheme, the clothes processing device first weighs the load to be washed this time to obtain the weight of the load to be washed, and then determines the estimated amount of detergent to be put in according to the weight. It can be understood that the larger the weight, that is, the larger the load to be washed, the more detergent is needed, and the larger the value of the estimated amount of detergent to be put in. After that, the clothes processing device can continue the process of putting in detergent using the method of controlling the putting in provided in the above embodiment 1 or 2 until the putting in process is completed, and then continue to run the subsequent stage of the washing program.

[0109] As another specific implementation of this embodiment, the washed load information is the turbidity value of the washing water during the soaking process of the washed load.

[0110] Specifically, the laundry processing device is provided with a turbidity detection device. After the laundry program is started, the laundry processing device fills water into the washing drum, and the load to be washed is immersed in the washing water. After the water filling is completed, a set time is waited, and preferably the washing water in the drum is stirred during the waiting period, and then the turbidity value of the washing water after immersion is detected by the turbidity detection device.

[0111] More specifically, if Figure 6 As shown, the detergent delivery control method includes:

[0112] Obtaining the turbidity value of the wash water during the soaking process of the washed load;

[0113] Determine the estimated amount of water to be added S0 according to the turbidity value of the washing water;

[0114] Execute a delivery operation of delivery amount S, where S<S0;

[0115] After a preset time, the effective concentration of detergent in the washing water or the amount of foam in the washing tub is detected;

[0116] The operation of adding detergent is controlled according to the detection result.

[0117] In the above scheme, the clothes processing device detects the turbidity value of the washing water after the load is soaked, and determines the estimated amount of the washing water S0 according to the detected turbidity value of the washing water. It can be understood that the higher the turbidity value of the washing water, the more serious the dirtiness of the load, and the more detergent is needed, and the larger the value of the estimated amount of the washing water S0. After the estimated amount of the washing water S0 is determined, the clothes processing device can continue the detergent delivery process using the delivery control method provided in the above embodiment 1 or 2 until the delivery process is completed, and then continue to run the subsequent stage of the washing program.

[0118] In the preferred scheme of this embodiment, the clothing processing device adopts the above scheme, and after determining the estimated amount S0 based on the weight of the wash load or the turbidity value of the washing water after soaking, the amount S for the first time is controlled to be half or less of the estimated amount S0.

[0119] Due to the error in weighing the load or detecting the turbidity of the washing water, the estimated amount S0 determined based on the weight of the load or the turbidity value of the washing water may not accurately match the actual situation of the load. When the laundry processing device first adds detergent in this laundry program, it only adds half or less of the estimated amount S0. When it is determined that the detergent is insufficient based on the concentration or foam amount detection, it continues to add detergent, which can avoid excessive detergent to the greatest extent.

[0120] In this embodiment, the clothes processing device can estimate the estimated amount of detergent S0 according to the weight of the load to be washed or the turbidity value of the washing water soaking the load to be washed, and then control the amount of detergent S when the detergent is first added in this washing process according to the obtained estimated amount of detergent S0. In this way, the amount of detergent added S for the first time and the actual situation of the load to be washed this time have a certain matching relationship, which is conducive to completing the detergent addition process with as few detergent re-addition times as possible, thereby ensuring the washing efficiency.

[0121] The above is only a preferred embodiment of the present invention, and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment, it is not used to limit the present invention. Any technician familiar with this patent can make some changes or modify the technical contents suggested above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention without departing from the content of the technical solution of the present invention still fall within the scope of the solution of the present invention.

Claims

1. A method for controlling the dosage of detergent, characterized in that: include: Determine the estimated amount of detergent S0; Execute a delivery operation of delivery amount S, where S<S0; After a preset time, the amount of foam in the washing drum is detected; If the detected foam amount is lower than the foam threshold, the detergent replenishment operation is performed.

2. The method for controlling the delivery of detergent according to claim 1, characterized in that: If the detected foam amount is greater than or equal to the foam threshold, the detergent delivery process is terminated.

3. The method for controlling the delivery of detergent according to claim 2, characterized in that: The following steps are involved: S11, determining the estimated amount of detergent to be put in S0; S12, executing a delivery operation of delivery amount S=a×S0, where 0<a<1; S13, after a preset time, detecting the amount of foam in the washing tub; S14. If the detected foam amount is lower than the foam threshold, the detergent addition operation of the amount S' is performed, and the process returns to step S13; otherwise, the detergent addition process ends.

4. The method for controlling the delivery of detergent according to claim 1, characterized in that: Also includes: The concentration of active ingredients of the detergent in the washing water is detected, and whether to perform the operation of adding detergent is controlled according to the concentration of the active ingredients of the detergent and the amount of foam in the washing tub.

5. The method for controlling the delivery of detergent according to claim 4, characterized in that: Before detecting the amount of foam in the washing tub, the concentration of the active ingredient of the detergent is detected first. If the concentration of the active ingredient of the detergent is lower than a preset concentration, the amount of foam in the washing tub is detected.

6. The method for controlling the delivery of detergent according to claim 5, characterized in that: If the detected concentration of the active ingredient of the detergent is greater than or equal to the preset concentration, or the detected foam amount is greater than or equal to the foam threshold, the detergent delivery process is terminated.

7. The method for controlling the delivery of detergent according to claim 6, characterized in that: The following steps are involved: S21, determining the estimated amount of detergent to be put in S0; S22, executing a delivery operation of delivery amount S=b×S0, where 0<b<1; S23, after a preset time, detecting the concentration of active ingredients of the detergent in the washing water; S24, if the detected concentration of the active ingredient of the detergent is lower than the preset concentration, execute step S25, otherwise execute step S27; S25, detecting the amount of foam in the washing tub, if the detected amount of foam is lower than the foam threshold, executing step S26, otherwise executing step S27; S26, perform the operation of adding detergent in an amount S', and return to step S23; S27, ending the detergent adding process.

8. The method for controlling the placement of detergent according to any one of claims 1 to 7, characterized in that: The step of determining the estimated amount of detergent to be added S0 includes: obtaining wash load information, and determining the estimated amount of detergent to be added S0 according to the wash load information.

9. The method for controlling the delivery of detergent according to claim 8, characterized in that: The washed load information includes: the weight of the washed load, or the turbidity value of the washing water during the soaking process of the washed load.

10. A clothes processing device, characterized in that: A method for controlling the dosage of detergent according to any one of claims 1 to 9.

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