Control method for washing equipment

A technology of washing equipment and control method, which is applied in the field of laundry washing and can solve the problems of excessive detergent foam and the like

Active Publication Date: 2020-05-29

QINGDAO HAIER WASHING MASCH CO LTD +1

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AI-Extracted Technical Summary

Problems solved by technology

[0005] In order to solve the above-mentioned problems in the prior art, that is, in order to solve the problem of excessive foam generated by the detergent during the operation of the existing washing equipment, the present invention provides a control method for the washing equipment. The washing equipment includes a drive The device and the washing tub, the control method includes the following steps: obtaini...

Abstract

The invention relates to the technical field of clothes washing, particularly provides a control method for washing equipment and aims at solving the problem that a detergent produces excessive bubbles during operation of existing washing equipment. For the purpose, the control method provided by the invention comprises the following steps of obtaining a preset rotation-stop ratio threshold of a drive device when the washing equipment runs a washing program last time; obtaining the quantity of bubbles in a washing bucket when the washing equipment runs the washing program last time; and adjusting a rotation-stop ratio of the drive device when the washing equipment runs the washing program again according to the preset rotation-stop ratio threshold and the quantity of the bubbles. Accordingto the control method, the rotation-stop ratio of the drive device when the washing equipment runs the washing program again is adjusted according to the preset rotation-stop ratio threshold and thequantity of the bubbles, so that the detergent is prevented from producing a large number of bubbles, the bubble overflow phenomenon is avoided, defoaming treatment on the washing equipment is avoidedand energy consumption of the washing equipment is reduced, thereby improving the user experience.

Application Domain

Other washing machinesControl devices for washing apparatus +2

Technology Topic

Process engineeringMechanical engineering +1

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Examples

Experimental program(1)

Example Embodiment

[0020] Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings. Those skilled in the art should understand that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the protection scope of the present invention. For example, although this application is described in conjunction with a washing machine, the technical solution of the present invention is not limited to this. Obviously, the control method can also be applied to other washing equipment such as shoe washing machines and washer-dryers. Without departing from the principle and scope of the present invention.

[0021] It should be noted that in the description of the present invention, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance.

[0022] Based on the technical problems raised in the background art, the present invention provides a control method for a washing machine, which aims to adjust the rotation-to-stop ratio of the driving motor when the washing machine runs the washing program again according to a preset rotation-to-stop ratio threshold and the amount of foam, so as to avoid Therefore, the detergent generates a large amount of foam, avoids the phenomenon of foam overflow, avoids defoaming the washing machine, reduces the energy consumption of the washing machine, and improves the user experience.

[0023] See figure 1 with figure 2 , figure 1 Is the flow chart of the control method of the present invention; figure 2 It is a flowchart of the control method of an embodiment of the present invention. Such as figure 1 As shown, the control method of the present invention includes the following steps:

[0024] S1. Obtain the preset rotation-stop ratio threshold value of the driving motor when the washing machine runs the washing program last time;

[0025] S2. Obtain the amount of foam in the washing tub when the washing machine runs the washing program last time;

[0026] S3. Adjust the rotation-stop ratio of the driving motor when the washing machine runs the washing program again according to the preset rotation-stop ratio threshold and the foam quantity.

[0027] Preferably, in the process of obtaining the preset injection volume threshold and obtaining the foam quantity, the preset spin-off ratio threshold value may be obtained first, and then the foam quantity; or the foam quantity may be obtained first, and then the preset spin-stop ratio threshold value; The preset spin-stop ratio threshold and the foam quantity can be obtained at the same time, and those skilled in the art can flexibly adjust and set the preset spin-stop ratio threshold and the sequence of obtaining the foam quantity in practical applications. This change does not deviate from the present invention. Principle and scope.

[0028] Preferably, the washing tub includes an outer tub and an inner tub rotatably arranged in the outer tub, the outer tub is used for holding water, and the inner tub is used for storing objects to be cleaned.

[0029] Preferably, the driving device is not limited to the above-listed driving motors, and may also be other driving members, no matter what kind of driving member is adopted, as long as it can drive the inner tub to rotate.

[0030] In a preferred embodiment, before step S1 "acquires the preset rotation-stop ratio threshold value of the driving motor when the washing machine was last running the washing program", the control method further includes:

[0031] S01. Obtain the first detergent type in the dispenser box when the washing machine was last running the washing program;

[0032] S02. Obtain the second detergent type in the dispenser box when the washing machine runs the washing program again;

[0033] S03. Determine whether the first detergent type is consistent with the second detergent type;

[0034] S04. If the first detergent type is inconsistent with the second detergent type, the operation of obtaining the preset dosage threshold of the detergent when the washing machine was last running the washing program is not performed;

[0035] S05. If the first detergent type is consistent with the second detergent type, determine whether to perform the operation of obtaining the preset dosage threshold of detergent when the washing machine was last running the washing program according to the material of the object to be cleaned.

[0036] Specifically, in step S04, if the first detergent type is inconsistent with the second detergent type, it can be considered that the foaming conditions of the first detergent and the second detergent are different, and the dispenser box cannot be used when the washing machine was last running the washing program. The first detergent type within is used to determine the detergent dosage when the washing machine runs the washing program again, and the operation of obtaining the preset dosage threshold of detergent when the washing machine runs the washing program last time is not performed.

[0037] Preferably, in step S05, if the first detergent type is the same as the second detergent type, it can be considered that the foaming conditions of the first detergent and the second detergent are the same, but the same detergent washes clothes of different materials. The foaming situation of the washing machine will also be different, so in order to be able to more accurately determine the amount of detergent when the washing machine runs the washing program again, according to the material of the object to be cleaned The operation of the preset delivery volume threshold.

[0038] Preferably, the washing machine further includes a concentration sensor for detecting the concentration of the detergent in the dispenser box. When the user selects the function of automatically adding detergent, the concentration sensor detects the first concentration of detergent in the dispenser box and stores the detection result. At the same time, it is compared with the second concentration of detergent when the washing machine was last running the washing program. If the first concentration is inconsistent with the second concentration, the operation of obtaining the preset dosage threshold of detergent during the last washing program run of the washing machine is not performed; if the first concentration is consistent with the second concentration, it is determined according to the material of the object to be cleaned. It is determined whether to perform the operation of acquiring the preset dosage threshold of detergent when the washing machine was last running the washing program.

[0039] Among them, the detergent dosage is selected according to the detergent dosage data table. The detergent dosage data table is the dosage data of the laundry amount and material combination under various concentration conditions, which are obtained through a large number of experiments and set in the washing machine control device. The same amount of clothes, the same material, and the concentration of the treatment agent are different, and the dosage is also different.

[0040] Further, in the above step S05, the step of "determining whether to perform the operation of obtaining the preset dosage threshold of detergent when the washing machine was last running the washing program according to the material of the object to be cleaned" specifically includes:

[0041] S051. Obtain the first material of the object to be cleaned when the washing machine runs the washing program last time;

[0042] S052. Obtain the second material of the object to be cleaned when the washing machine runs the washing program again;

[0043] S053: Determine whether the first material is consistent with the second material;

[0044] S054: If the first material is inconsistent with the second material, do not perform the operation of obtaining the preset dosage threshold of detergent when the washing machine was last running the washing program;

[0045] S055: If the first material is consistent with the second material, perform an operation of acquiring a preset dosage threshold of detergent when the washing machine was last running a washing program.

[0046] Specifically, in step S054, if the first material is inconsistent with the second material, it can be considered that the first detergent type is the same as the second detergent type, but the foaming condition of the same detergent when washing clothes of different materials is also It will be different. The preset amount of detergent when the washing machine runs the washing program last time cannot be used to determine the amount of detergent when the washing machine runs the washing program again, so the acquisition of the detergent when the washing machine last runs the washing program is not executed. The operation of the preset delivery volume threshold.

[0047] Preferably, in step S055, if the first material is consistent with the second material, and the first detergent type is consistent with the second detergent type, it can be considered that the washing machine running the washing program again is the same as the last time the washing machine runs the washing program. The detergent conditions are similar or the same. You can refer to the preset dosage threshold value of the detergent when the washing machine was last running the washing program to determine the detergent dosage when the washing machine runs the washing program again. The operation of the preset dosage threshold of the agent.

[0048] Preferably, the washing machine further includes an image sensor, and the material of the object to be cleaned is obtained through the image sensor. Of course, the method for obtaining the material of the object to be cleaned is not limited to the above-listed methods, and the material of the object to be cleaned can also be obtained through RFID, no matter what method is adopted, as long as the material of the object to be cleaned can be obtained.

[0049] Preferably, in the above step S055, the step of "acquiring the preset dosage threshold of detergent when the washing machine was last running the washing program" specifically includes:

[0050] S0551. Obtain the weight of the object to be cleaned when the washing machine runs the washing program last time;

[0051] S0552. Determine a preset throwing amount threshold according to the weight of the object to be cleaned and the first material.

[0052] Preferably, the washing machine further includes a weight sensor, and the weight of the object to be washed is obtained through the weight sensor.

[0053] In a preferred embodiment, after step S055 "Operation to obtain the preset dosage threshold of detergent when the washing machine was last running the washing program", the control method further includes:

[0054] S06. When the washing machine runs the washing program again, the detergent is injected according to the preset dosage threshold.

[0055] Preferably, for the same amount of clothes, the same material, and the same detergent concentration, the amount of detergent is the same.

[0056] In a preferred embodiment, after the step S06 "make the washing machine run the washing program again according to the preset dosage threshold for detergent injection", the control method further includes:

[0057] S07. Make the washing machine perform a water filling operation.

[0058] Preferably, the washing machine is filled with water to a first water level, which is less than a preset water level threshold for the washing machine to run a washing program again, so as to improve the detection accuracy of washing water turbidity.

[0059] In a preferred embodiment, after the step of "making the washing machine perform a water filling operation" in step S07, the control method further includes:

[0060] S08. Make the washing machine perform a washing operation, that is, make the washing machine perform a washing operation at the first water level, so as to dissolve the dirt on the object to be washed into the washing water to the greatest extent, so as to accurately detect the turbidity of the washing water.

[0061] In a preferred embodiment, the washing machine further includes detection electrodes. In the above step S2, the step of "obtaining the amount of foam in the washing tub when the washing machine was last running the washing program" specifically includes:

[0062] S21: Obtain the amount of foam in the washing tub through the detection electrode.

[0063] Of course, the method of obtaining the amount of foam in the washing tub is not limited to the above-listed methods. Other methods can also be used to obtain the amount of foam in the washing tub. For example, the working current of the washing machine motor is used to determine the amount of foam, no matter what As long as the detection method can measure the amount of foam in the washing tub.

[0064] In a preferred embodiment, in the above step S3, the step of "adjusting the rotation-stop ratio of the driving motor when the washing machine re-runs the washing program according to the preset rotation-stop ratio threshold and the amount of foam" specifically includes:

[0065] S31. Determine whether the number of bubbles is greater than or equal to a preset bubble threshold;

[0066] S32. If the amount of foam is less than the preset foam threshold, the drive motor is caused to run according to the preset rotation-stop ratio threshold when the washing machine runs the washing program again;

[0067] S33. If the amount of foam is greater than or equal to the preset foam threshold, adjust the rotation-stop ratio of the driving motor when the washing machine re-runs the washing program according to the turbidity of the washing water in the washing tub.

[0068] Specifically, in step S32, when the amount of foam is less than the preset foam threshold, it means that the drive motor runs the detergent according to the preset rotation-stop ratio threshold during the last washing program, and the amount of foam generated by the detergent does not need to be adjusted. Stop ratio, when the washing machine runs the washing program again, the drive motor runs according to the preset ratio threshold.

[0069] Preferably, in step S33, when the amount of foam is greater than or equal to the preset foam threshold, it means that the drive motor runs according to the preset rotation-stop ratio threshold when the washing program is run last time, so that the detergent generates a lot of foam, and foam will occur. Overflow phenomenon, such as overflowing to the circuit board, causing damage to the circuit board, or overflowing to the floor or other electrical appliances next to the washing machine, causing inconvenience to the user’s life. In order to avoid the occurrence of the above situation, follow the instructions in the washing tub. The turbidity of the washing water is used to adjust the rotation-stop ratio of the driving motor when the washing machine runs the washing program again, so as to reduce the amount of foam in the washing tub, avoid the detergent from producing a large amount of foam, avoid the foam overflow phenomenon, and avoid the washing machine. The defoaming treatment reduces the energy consumption of the washing machine, thereby improving the user experience.

[0070] In the above process, through the setting of the preset foam threshold, it can be concluded whether the driving motor of the washing machine runs the washing program again according to the preset rotation-stop ratio threshold. Among them, the setting of the preset foam threshold can be flexibly adjusted and set according to the actual situation. For example, the foam value obtained by the person skilled in the art according to experiments under specific working conditions, or the foam value obtained according to experience, as long as it meets It is sufficient if the predetermined foam threshold value determines whether the drive motor is operated according to the preset rotation-stop ratio threshold value.

[0071] Preferably, in the above step S33, the step of "adjusting the rotation-stop ratio of the driving motor when the washing machine re-runs the washing program according to the turbidity of the washing water in the washing tub" specifically includes:

[0072] S331. Obtain the turbidity of the washing water in the washing tub;

[0073] S332: Determine whether the turbidity of the washing water is greater than or equal to a preset turbidity threshold;

[0074] S333. If the turbidity of the washing water is greater than or equal to the preset turbidity threshold, the driving motor is operated according to the first rotation stop ratio when the washing machine runs the washing program again;

[0075] S334. If the turbidity of the washing water is less than the preset turbidity threshold, the driving motor is operated according to the second rotation stop ratio when the washing machine runs the washing program again;

[0076] Wherein, the first stop-to-turn ratio is less than the preset stop-to-turn ratio threshold; the second stop-to-turn ratio is less than the first stop-to-turn ratio.

[0077] Specifically, in step S333, if the turbidity of the washing water is greater than or equal to the preset turbidity threshold, a higher spin-off ratio is required to clean the object to be cleaned, but a too high spin-off ratio will produce a lot of foam In order to avoid the generation of a large amount of foam, when the washing machine runs the washing program again, the driving motor runs at a first rotation-stop ratio that is less than the preset rotation-stop ratio threshold to reduce the foaming amount of the detergent.

[0078] Preferably, in step S334, if the turbidity of the washing water is less than the preset turbidity threshold, it means that the object to be cleaned is relatively clean, and a lower rotation-stop ratio can clean the object to be cleaned. In order to avoid the generation of a large amount of foam, When the washing machine runs the washing program again, the drive motor runs according to the second rotation-stop ratio which is less than the first rotation-stop ratio, which prevents the detergent from producing a large amount of foam due to the excessively high rotation-stop ratio, avoids foam overflow, and avoids The washing machine performs defoaming treatment, which reduces the energy consumption of the washing machine, thereby improving the user experience.

[0079] In the above process, by setting the preset turbidity threshold, it can be concluded whether the driving motor of the washing machine runs the washing program again according to the first rotation stop ratio. Among them, the setting of the preset turbidity threshold can be flexibly adjusted and set according to the actual situation, for example, the turbidity value obtained by those skilled in the art according to experiments under specific working conditions, or the turbidity value obtained according to experience , As long as it meets the requirement of whether to make the drive motor run according to the first rotation-stop ratio determined by the preset turbidity threshold.

[0080] In a preferred embodiment, after step S33 "adjusting the rotation-stop ratio of the driving motor when the washing machine re-runs the washing program according to the turbidity of the washing water in the washing tub", the control method further includes:

[0081] S4. Make the washing machine continue to perform operations such as washing, draining, rinsing, dehydrating, etc. to clean the objects to be cleaned.

[0082] It should be further explained that the detergent in this application not only includes washing liquid, washing powder and other treatment agents used for washing, but also includes softeners, care machines and other auxiliary treatment agents related to washing.

[0083] Refer below figure 2 , figure 2 It is a flowchart of the control method of an embodiment of the present invention.

[0084] Such as figure 2 As shown, in a possible implementation manner, the flow of the control method of the washing machine of the present invention may be:

[0085] S01. Obtain the first detergent type in the dispenser box when the washing machine runs the washing program last time;

[0086] S02. Obtain the second detergent type in the dispenser box when the washing machine runs the washing program again;

[0087] S03. Determine whether the first detergent type is consistent with the second detergent type;

[0088] S04. If not, do not perform the operation of obtaining the preset dosage threshold of detergent when the washing machine was last running the washing program;

[0089] S051. If yes, obtain the first material of the object to be cleaned when the washing machine runs the washing program last time;

[0090] S052: Obtain the second material of the object to be cleaned when the washing machine runs the washing program again;

[0091] S053: Determine whether the first material is consistent with the second material;

[0092] S054. If not, do not perform the operation of obtaining the preset dosage threshold of detergent when the washing machine was last running the washing program;

[0093] S0551, if yes, obtain the weight of the object to be cleaned when the washing machine runs the washing program last time;

[0094] S0552: Determine a preset throwing amount threshold according to the weight of the object to be cleaned and the first material;

[0095] S06. When the washing machine runs the washing program again, the detergent is injected according to the preset dosage threshold;

[0096] S07. Make the washing machine perform water injection operation;

[0097] S08. Make the washing machine perform washing operations;

[0098] S2. Obtain the amount of foam in the washing tub when the washing machine runs the washing program last time;

[0099] S31. Determine whether the number of bubbles is greater than or equal to a preset bubble threshold;

[0100] S32. If not, when the washing machine runs the washing program again, the drive motor runs according to the preset rotation-stop ratio threshold;

[0101] S331. If yes, obtain the turbidity of the washing water in the washing tub;

[0102] S332: Determine whether the turbidity of the washing water is greater than or equal to a preset turbidity threshold;

[0103] S333. If yes, when the washing machine runs the washing program again, the driving motor runs according to the first rotation stop ratio;

[0104] S334. If not, make the driving motor run according to the second rotation-stop ratio when the washing machine runs the washing program again.

[0105] In the above control method, at least one or more of steps S04, S054, and S334 can also be deleted. This control method can still be executed without including at least one or more of steps S04, S054, and S334. This change does not It does not deviate from the principle and scope of the present invention. Of course, at least one or several of the remaining steps in the above method can also be deleted. The control method can still be executed without including at least one or several of the remaining steps, and this change does not deviate from the present invention. The principle and scope of

[0106] It should be pointed out that the above-mentioned embodiment is only a preferred embodiment of the present invention. It is only used to illustrate the principle of the method of the present invention and is not intended to limit the protection scope of the present invention. In practical applications, those skilled in the art The above-mentioned function allocation can be completed by different steps according to needs, that is, the steps in the embodiment of the present invention are decomposed or combined. For example, the steps in the above-mentioned embodiments can be combined into one step, or can be further divided into multiple sub-steps to complete all or part of the functions described above. The names of the steps involved in the embodiments of the present invention are only for distinguishing the various steps, and are not regarded as a limitation of the present invention.

[0107] So far, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the drawings. However, those skilled in the art will readily understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

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