WO2021218758A1 - 洗碗机的控制方法和控制装置 - Google Patents

洗碗机的控制方法和控制装置 Download PDF

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WO2021218758A1
WO2021218758A1 PCT/CN2021/088879 CN2021088879W WO2021218758A1 WO 2021218758 A1 WO2021218758 A1 WO 2021218758A1 CN 2021088879 W CN2021088879 W CN 2021088879W WO 2021218758 A1 WO2021218758 A1 WO 2021218758A1
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Prior art keywords
water
washing
stage
phase
hardness
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PCT/CN2021/088879
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English (en)
French (fr)
Inventor
黄隆重
徐伟
周静
黄海
许伟东
黄宁杰
Original Assignee
三花亚威科电器设备（芜湖）有限公司
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Priority to EP21797380.9A priority Critical patent/EP4144281A4/en
Publication of WO2021218758A1 publication Critical patent/WO2021218758A1/zh

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    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00—Washing or rinsing machines for crockery or tableware
    • A47L15/0018—Controlling processes, i.e. processes to control the operation of the machine characterised by the purpose or target of the control
    • A47L15/0021—Regulation of operational steps within the washing processes, e.g. optimisation or improvement of operational steps depending from the detergent nature or from the condition of the crockery
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00—Washing or rinsing machines for crockery or tableware
    • A47L15/0018—Controlling processes, i.e. processes to control the operation of the machine characterised by the purpose or target of the control
    • A47L15/0021—Regulation of operational steps within the washing processes, e.g. optimisation or improvement of operational steps depending from the detergent nature or from the condition of the crockery
    • A47L15/0023—Water filling
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00—Washing or rinsing machines for crockery or tableware
    • A47L15/42—Details
    • A47L15/4229—Water softening arrangements
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00—Washing or rinsing machines for crockery or tableware
    • A47L15/42—Details
    • A47L15/4229—Water softening arrangements
    • A47L15/4231—Constructional details of the salt container or the ion exchanger
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
    • C02F1/469—Treatment of water, waste water, or sewage by electrochemical methods by electrochemical separation, e.g. by electro-osmosis, electrodialysis, electrophoresis
    • C02F1/4691—Capacitive deionisation
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L2401/00—Automatic detection in controlling methods of washing or rinsing machines for crockery or tableware, e.g. information provided by sensors entered into controlling devices
    • A47L2401/11—Water hardness, acidity or basicity
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L2501/00—Output in controlling method of washing or rinsing machines for crockery or tableware, i.e. quantities or components controlled, or actions performed by the controlling device executing the controlling method
    • A47L2501/18—Water softening devices
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/42—Treatment of water, waste water, or sewage by ion-exchange
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/42—Treatment of water, waste water, or sewage by ion-exchange
    • C02F2001/425—Treatment of water, waste water, or sewage by ion-exchange using cation exchangers
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2209/00—Controlling or monitoring parameters in water treatment
    • C02F2209/005—Processes using a programmable logic controller [PLC]
    • C02F2209/006—Processes using a programmable logic controller [PLC] comprising a software program or a logic diagram
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2209/00—Controlling or monitoring parameters in water treatment
    • C02F2209/05—Conductivity or salinity
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2209/00—Controlling or monitoring parameters in water treatment
    • C02F2209/05—Conductivity or salinity
    • C02F2209/055—Hardness
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2307/00—Location of water treatment or water treatment device
    • C02F2307/12—Location of water treatment or water treatment device as part of household appliances such as dishwashers, laundry washing machines or vacuum cleaners

Definitions

  • This application relates to the field of household appliances, and in particular to a control method and control device of a dishwasher.
  • the water softening device used in the dishwasher in the related technology is used to treat metal cations such as calcium and magnesium in the water to reduce the content of metal cations in the washing water, thereby helping to reduce the generation of scale and improve the user's dishwashing experience.
  • the water softening device needs to be regenerated after a certain period of time or a certain number of times to restore the softening capacity.
  • the softening capacity of the water softening device will be affected by factors such as water temperature, water flow rate and water quality of the water source. It is possible that the actual softening capacity of the water softening device during the regeneration operation can continue to be softened, which is not conducive to improving the softening capacity of the water softening device. Reasonable application will increase the frequency of regeneration of the water softening device, which is not conducive to reducing the waste of water resources caused by regeneration.
  • the present application provides a method for controlling a dishwasher.
  • a single dishwashing process of the dishwasher includes at least one working phase, and each working phase includes a water intake phase and a washing phase.
  • the method for controlling the dishwasher includes the following steps :
  • the water softening device If the hardness value is less than the preset first hardness threshold, it is determined that the water softening device is sufficient to generate water that meets the hardness requirement of the next working stage that requires soft water washing;
  • the water softening device is controlled to run the softening function again after the water intake stage of the current working stage ends, until the next working stage that requires soft water washing.
  • the present application also provides a control device for a dishwasher.
  • the single dishwashing process of the dishwasher includes at least one working phase, and each working phase includes a water intake phase and a washing phase.
  • the control device for the dishwasher includes :
  • the hardness acquisition module is used to acquire the hardness value of the water produced by the water softening device running the softening function at the end of the water intake stage of the current working stage;
  • a softening ability judgment module configured to determine that the water softening device is sufficient to produce water that meets the hardness requirement of the next working stage that requires soft water washing if the hardness value is less than the preset first hardness threshold;
  • the softening control module is used to control the water softening device to run the softening function again after the water intake stage of the current working stage ends until the next working stage that requires soft water washing.
  • Fig. 1 is a schematic structural diagram of a water softening device according to an exemplary embodiment of the present application
  • Figure 2 is a cross-sectional view of the water softening device shown in Figure 1 from a perspective;
  • Fig. 3 is a flowchart of a method for controlling a dishwasher according to an exemplary embodiment of the present application
  • Fig. 4 is a flowchart of another method for controlling a dishwasher according to an exemplary embodiment of the present application.
  • Fig. 5 is a flowchart of another method for controlling a dishwasher according to an exemplary embodiment of the present application.
  • Fig. 6 is a flowchart of another method for controlling a dishwasher according to an exemplary embodiment of the present application.
  • FIG. 7 is a flowchart of yet another method for controlling a dishwasher according to an exemplary embodiment of the present application.
  • Fig. 8 is a schematic structural diagram of a control device for a dishwasher according to an exemplary embodiment of the present application.
  • the control method of the dishwasher provided in the present application can be applied to a dishwasher with a capacitive deionization type water softening device.
  • the water softening device may include a first electrode and a second electrode with opposite polarities, and the water softening device operates a softening function or a regeneration function by changing the polarity of the first electrode and the polarity of the second electrode.
  • the dishwasher is equipped with a control device, such as a control circuit board.
  • the control device is electrically connected with the water softening device, the washing device and other working components to control the operation of other devices or components.
  • control method for the dishwasher can also be applied to dishwashers with other types of water softening devices, and the water softening device may also be an ion exchange resin type water softening device.
  • This type of ion exchange resin water softening device can use cation exchange resin to exchange some cations (such as calcium and magnesium ions) in water with its own hydrogen ions to achieve the purpose of softening water, and when the water softener needs to be regenerated, It is helpful for water resources to dissolve the dishwashing salt in its salt tank, and the ion exchange resin is washed with concentrated salt water many times to replace the metal calcium and magnesium cations to realize the recovery of soft water capacity.
  • the working principle and related structure of the ion exchange resin type water softening device are the prior art, which will not be repeated in this application.
  • the capacitive deionization type water softening device 300 includes a plurality of first electrode plates 1 and a plurality of second electrode plates 2, and a plurality of first electrode plates 1 and a plurality of second electrode sheets 2 are alternately arranged, and a channel through which water flows is formed between adjacent first electrode sheets 1 and second electrode sheets 2.
  • the channel can be realized by the first electrode sheet Insert an insulating filter, etc. between 1 and the second electrode sheet 2.
  • the insulating filter screen can be a material with a porous structure. After the first electrode sheet 1 and the second electrode sheet 2 are fixed together by a certain pressure, the insulating filter screen is filled between the first electrode sheet 1 and the second electrode sheet 2. Thus, a channel for water to pass through between the first electrode sheet 1 and the second electrode sheet 2 is formed.
  • the first electrode sheet 1 and the second electrode sheet 2 can be thin graphite electrode sheets or other conductive materials.
  • the first electrode sheet 1 and the second electrode sheet 2 are respectively connected to the positive and negative electrodes of the power supply, so that the first electrode An electric field can be formed between the sheet 1 and the second electrode sheet 2.
  • the first electrode sheet 1 is provided with a first adsorption layer (not shown) for adsorbing cations (such as calcium and magnesium ions in water, etc.), and the second electrode sheet 2 is provided with a first adsorption layer (not shown) for adsorbing anions (such as chloride ions in water). Etc.) of the second adsorption layer (not shown).
  • a first adsorption layer for adsorbing cations (such as calcium and magnesium ions in water, etc.)
  • the second electrode sheet 2 is provided with a first adsorption layer (not shown) for adsorbing anions (such as chloride ions in water). Etc.) of the second adsorption layer (not shown).
  • the first electrode sheet 1 When the water softening device 300 is powered on, the first electrode sheet 1 is connected to the negative pole of the DC power supply, and the second electrode sheet 2 is connected to the positive pole of the DC power supply. At this time, when the water flows from the first electrode sheet 1 to the second electrode When the sheet 2 passes through the middle, the cations and anions in the water are adsorbed on the first adsorption layer and the second adsorption layer, respectively, so as to achieve the purpose of softening water.
  • the direction of the positive and negative poles of the power supply connected to the first electrode sheet 1 and the second electrode sheet 2 can be changed, that is, the connection between the first electrode sheet 1 and the DC power supply
  • the positive electrode is connected, and the second electrode sheet 2 is connected to the negative electrode of the DC power supply.
  • the cations adsorbed on the first adsorption layer are separated from the first adsorption layer under the action of the electric field, and the second adsorption layer adsorbs the cations Poor capacity, cations are not easily adsorbed on the second adsorption layer, so the cations return to the water to restore the adsorption capacity of the first adsorption layer.
  • the anions adsorbed on the second adsorption layer are removed from the second adsorption layer under the action of an electric field. The upper detachment restores the adsorption capacity of the second adsorption layer, thereby achieving the purpose of regeneration.
  • the first electrode sheet 1 when a forward voltage is applied between the first electrode and the second electrode, the first electrode sheet 1 is connected to the negative electrode of the DC power supply, and the second electrode sheet 2 is connected to the DC power supply. Connect to the positive pole.
  • the first electrode sheet 1 when a reverse voltage is applied between the first electrode and the second electrode, the first electrode sheet 1 is connected to the positive electrode of the DC power source, and the second electrode sheet 2 is connected to the negative electrode of the DC power source.
  • the method for controlling a dishwasher may include the following steps:
  • step S101 Obtain the hardness value of the water produced by the water softening device running the softening function at the end of the water intake stage of the first working stage.
  • the first work phase is the current work phase in progress.
  • step S103 if the hardness value is less than the preset first hardness threshold, the water softening device is controlled to continue to run the softening function until the second working stage after the water intake stage of the first working stage ends.
  • the second working stage and the first working stage may belong to the same dishwashing process, and the second working stage is the next working stage that requires soft water washing after the first working stage.
  • the second working phase may run immediately after the first working phase, or there may be other working phases between the second working phase and the first working phase.
  • the second working stage and the first working stage can also belong to different dishwashing processes.
  • the first working stage is a certain working stage in the first complete dishwashing process
  • the second working stage is the second time. A certain working stage in the complete dishwashing process.
  • Determining whether soft water washing is required for a certain working stage can be pre-set based on the dishwasher program, or selected by the user according to the actual situation.
  • the working stage using heated washing water may be determined as the working stage requiring soft water washing. Hot water washing is easier than cold water washing to make the metal cations become insoluble calcium carbonate and magnesium hydroxide, etc., so that scale is easily formed. Therefore, in the embodiment of the present application, the washing stage of the second working stage heats the washing water.
  • the hardness value is less than the preset first hardness threshold value, it can be determined that the water softening device is sufficient to generate water that meets the hardness requirement of the washing water in the washing chamber in the second working stage.
  • a single dishwashing process of a dishwasher includes at least one working phase, and each working phase includes a water intake phase and a washing phase.
  • the working phase of the dishwasher may include one or a combination of a prewash phase, a main wash phase, and a rinsing phase.
  • the pre-washing stage includes a pre-washing water intake stage and a pre-washing washing stage.
  • the main washing stage includes the main washing water inlet stage and the main washing washing stage.
  • the rinsing stage includes a rinsing water intake stage and a rinsing washing stage.
  • the working phase of a complete dishwashing process is only the main wash phase.
  • a complete dishwashing process includes the main washing stage and the rinsing stage in sequence.
  • the working stages of a complete dishwashing process include a pre-washing stage, a main washing stage, and a rinsing stage in sequence.
  • a dishwasher having two or more of the pre-washing stage, the main washing stage and the rinsing stage, and the washing mode of the dishwasher may include multiple. For example, for a dishwasher with a pre-washing stage and a main washing stage, its washing mode can be set to a variety of selectable washing modes.
  • the working phase of a complete dishwashing process includes only the main washing phase.
  • a complete dishwashing process includes the main washing stage and the rinsing stage.
  • the working phases of a complete dishwashing process include a prewash phase, a main wash phase, and a rinse phase.
  • Each working stage of the dishwasher can use heated washing water or unheated washing water.
  • Detergent can be added or not added to each working stage of the dishwasher.
  • the rinsing stage may include a hot water rinsing stage in which the tableware is washed with hot water or a cold water rinsing stage in which the tableware is washed with unheated water (such as tap water).
  • unheated water such as tap water.
  • the working phases of a dishwashing process of a dishwasher including a main washing phase and a rinsing phase are taken as an example for description.
  • the rinsing stage is a hot water rinsing stage in which heated water is used to wash the dishes.
  • brightener or rinse aid may be added during the rinsing phase to wash the dishes.
  • the first working stage is the main washing stage.
  • the second working stage is the hot rinsing stage.
  • the first working stage and the second working stage belong to the same dishwashing process.
  • a third working stage in which washing water is not required to be heated may also be included. That is, the working phase of the dishwasher may also include working phases that do not require heating of the washing water between the main washing phase and the hot rinsing phase, such as a working phase where the tableware can be washed directly with tap water.
  • the end of the water intake phase of the first working phase can be understood as a period from a certain moment when the water intake phase of the first working phase is about to end to the end of the water intake phase.
  • the end of the water intake phase of the first work phase may be set to last from 80% of the total time of the water intake phase of the first work phase to the end of the water intake phase.
  • the end of the water intake phase of the first work phase may be set to last from 90% of the total time of the water intake phase of the first work phase to the end of the water intake phase.
  • the end of the water intake phase of the first work phase may be set to last from 95% of the total time of the water intake phase of the first work phase to the end of the water intake phase.
  • the final stage of the water inlet stage can be set according to specific conditions, which is not limited in this application.
  • step S101 in some embodiments, obtaining the hardness value of the water produced at the end of the water inlet stage of the first working stage of the water softening device running the softening function can be specifically implemented by the following steps:
  • step S1011 the total dissolved solid matter value of the water at the water outlet of the water softening device at the end of the water inlet stage of the first working stage is detected.
  • step S1012 according to the conversion relationship between the total soluble solid matter value and the hardness value, the hardness value corresponding to the detected total soluble solid matter value is calculated.
  • a total dissolved solids value detector can be installed at the water outlet of the water softening device to detect the total dissolved solids value of the water at the water outlet of the water softening device at the end of the water inlet stage.
  • the total dissolved solids value detector can detect the total dissolved solids value of the water produced by the softening function of the water softening device in real time.
  • the total dissolved solids value detector or control device of the dishwasher can obtain the total dissolved solids detected in real time during the end of the water intake stage according to the preset end of the water intake stage in the dishwasher. Sexual solid material value.
  • the largest value among the multiple values can be taken as the total dissolved solid matter value of the water at the outlet of the water softening device at the end of the water inlet stage.
  • the average value of the multiple values can also be taken as the total dissolved solid matter value of the water at the outlet of the water softening device at the end of the water inlet stage.
  • the total dissolved solids value detector can also directly detect the total dissolved solids of the water produced by the softening function of the water softening device at the end of the water inlet stage set in the dishwasher according to the end of the water inlet stage. Material value. This application does not limit this, and can be set according to the specific application environment.
  • obtaining the hardness value of the water produced at the end of the water inlet stage of the first working stage of the water softening device running the softening function can be specifically implemented through the following steps:
  • step S1013 the conductivity value of the water at the outlet of the water softening device at the end of the water intake stage of the first working stage is detected.
  • step S1014 according to the conversion relationship between the conductivity value and the hardness value, the hardness value corresponding to the detected conductivity value is calculated.
  • a conductivity meter can be installed at the water outlet of the water softening device to detect the conductivity value of the water at the water outlet of the water softening device at the end of the water inlet stage.
  • the conductivity meter can detect the conductivity value of the water produced by the softening function of the water softening device in real time.
  • the conductivity meter or control device of the dishwasher can obtain the conductivity value detected in real time during the period of the end of the water intake phase according to the preset end of the water intake phase of the dishwasher. If the detected conductivity values are multiple values, the largest value among the multiple values can be taken as the conductivity value of the water at the outlet of the water softening device at the end of the water intake stage.
  • the average value of the multiple values can also be taken as the conductivity value of the water at the outlet of the water softening device at the end of the water inlet stage.
  • the conductivity meter can also directly detect the conductivity value of the water produced by the softening function of the water softening device at the end of the water intake stage according to the end of the water intake stage set in the dishwasher. This application does not limit this, and can be set according to the specific application environment.
  • the water softening device can be controlled to stop running the softening function after the water intake stage of the first working stage is over, so that it can be started when needed later.
  • stopping the softening function can turn off the softening function of the water softening device, or power off the water softening device.
  • control method of the dishwasher may include step S102: determining whether the hardness value obtained in step S101 is less than a first hardness threshold.
  • step S102 the dishwasher is controlled to execute step S103.
  • the hardness value of the water produced by the softening function of the water softening device at the end of the water inlet stage is less than the preset first hardness threshold, it can be understood that the water produced by the softening function of the water softening device can meet the needs of soft water washing.
  • the water demand in the second working stage that is, the water softening device continues to run the softening function to produce enough water to meet the hardness demand in the second working stage.
  • the first hardness threshold ranges from 2dh to 8dh. That is, the first hardness threshold can be set to any value from 2dh to 8dh.
  • the specific value of the first hardness threshold can be set according to specific requirements of dishwasher products, etc., which is not limited in this application.
  • the water hardness values involved in some embodiments of this application all adopt the water hardness standards currently used in Germany.
  • step S103 may specifically include the following steps:
  • step S1031 it is determined whether there is a third working stage that does not require soft water washing between the first working stage and the second working stage. Specifically, it can be determined whether there is a third working stage that does not require heating of washing water between the first working stage and the second working stage.
  • step S1032 is executed, and if the determination result of step S1031 is YES, step S1033 is executed.
  • step S1032 the water softening device is controlled to continue to operate the softening function in the water intake stage of the second working stage.
  • step S1033 in the water inlet stage of the third working stage, the water softening device is controlled to be in a power-off state and the tap water is controlled to pass into the washing chamber.
  • the water softening device of the dishwasher can be controlled to operate and soften again during the water intake stage of the second working stage. Function, and control the water softening device to continue to run the water generated by the softening function to flow into the washing chamber as the washing water in the second working stage.
  • the water softening device in the water inlet stage of the third working stage, is controlled to be off. Electricity and control to pass tap water into the washing chamber as the washing water in the third working stage.
  • the way for tap water to pass into the washing chamber can be that the outlet of the tap water valve and the washing chamber are directly connected through a pipeline, or the tap water first enters the water softener in the power-off state and enters the washing chamber from the water flow channel of the water softener.
  • the electric state does not soften or regenerate the tap water in the channel, which is equivalent to providing a flow channel for the tap water.
  • the water softening device of the dishwasher is controlled to run the softening function again in the water inlet stage of the second working stage, and the water generated by the water softening device to continue to run the softening function flows into the washing cavity as the second 2. Washing water in the working phase.
  • step S103 may specifically include step S1031, step S1032, and step S1034, and the determination result of step S1031 is no In this case, step S1032 is executed, and if the determination result of step S1031 is YES, step S1034 is executed.
  • step S1031 and step S1032 refer to the relevant description above.
  • step S1034 the water softening device is controlled to operate the regeneration function and the water generated by the operation regeneration function is passed into the washing chamber.
  • the water softening device can be controlled to operate the regeneration function and the water generated by the running regeneration function can be passed into the washing chamber, so that the relatively hard water produced by the water softening device’s operation regeneration function is not available.
  • the washing stage that requires soft water washing can be well utilized, which is beneficial to reduce the waste of water resources.
  • step S1031 if the determination result of step S1031 is yes, the water generated by the regeneration function of the water softening device can also be controlled to be discharged through the drain line of the dishwasher; and the tap water can be controlled to flow into The washing chamber is used as washing water for the third working stage.
  • This application does not limit this, and can be set according to the specific application environment.
  • the water outlet of the water softening device and the washing chamber may be communicated through a pipe.
  • a valve can be provided at the water inlet of the washing chamber, or in the pipeline or at the outlet of the water softening device, so that the opening and closing of the pipeline between the water outlet of the water softening device and the washing chamber can be controlled by controlling the opening and closing of the valve. closure. That is, by controlling the valve to open the pipe between the water softening device's water outlet and the washing chamber and closing the pipe between the water softening device's water outlet and the drainage pipe, the water generated by the water softening device running the softening function can flow into the washing dish.
  • the washing chamber of the machine is, by controlling the valve to open the pipe between the water softening device's water outlet and the washing chamber and closing the pipe between the water softening device's water outlet and the drainage pipe, the water generated by the water softening device running the softening function can flow into the washing dish.
  • the washing chamber of the machine is, by controlling the
  • the water outlet of the water softening device and the drain line of the dishwasher can also be connected through a pipe.
  • a valve can also be provided between the water outlet of the water softening device and the drain pipe of the dishwasher, so as to control the pipeline between the water outlet of the water softening device and the drain pipe of the dishwasher by controlling the opening and closing of the valve. Open or close.
  • the water outlet of the water softening device, the washing chamber, and the drain pipe can be connected in series by pipes. That is, the water outlet of the water softening device is communicated with the drainage pipeline through the washing cavity.
  • Valves can be set at the water inlet of the washing cavity and the water inlet of the drainage pipe, or in the pipeline or at the outlet of the water softening device, so that the water outlet and washing cavity of the water softening device can be controlled by controlling the opening and closing of the valve
  • the opening or closing between the water outlet, and the opening or closing of the pipe between the water outlet of the washing chamber and the drain pipe are controlled.
  • the pipe between the water outlet of the washing cavity and the drain pipe is opened, so that the water in the washing cavity of the dishwasher is drained from the drain pipe.
  • control method of the dishwasher further includes:
  • the hardness value is greater than or equal to the first hardness threshold but less than the second hardness threshold: for example, there is at least one third working stage that does not require soft water washing between the first working stage and the second working stage, Then control the water softening device to run the softening function again in the water intake stage of the third working stage and pass the water generated by the running softening function into the washing chamber; otherwise, control the water softening device to run the regeneration function before the second working stage runs .
  • step S102 it can be implemented by step S102, step S104, step S105, step S106, and step S107 as shown in FIG. 3.
  • step S102 can be executed, and step S104 is executed if the determination result of step S102 is no, step S105 is executed if the determination result of step S104 is yes, and further the determination of step S105 is If the result is yes, step S106 is executed, and if the result of the determination of step S105 is no, step S107 is executed.
  • step S102 reference may be made to the above-mentioned related description.
  • step S104 it is determined whether the hardness value acquired in step S101 is less than a second hardness threshold value.
  • step S105 it is determined whether there is a third working stage that does not require soft water washing between the first working stage and the second working stage.
  • step S106 the water softening device is controlled to continue to operate the softening function during the water intake phase of the third working stage and to pass the water generated by the softening function into the washing chamber.
  • step S107 the water softening device is controlled to operate the regeneration function before the second working stage is operated. In this way, the softening capacity of the water softening device can be restored before the second working stage is operated, so that the water softening device can provide washing water that meets the hardness requirement during the second working stage of the dishwasher.
  • step S107 may also be executed.
  • step S108 can also be directly entered: determine whether the hardness value obtained in step S101 is greater than or equal to the first hardness threshold and less than The second hardness threshold. Furthermore, under the condition that the determination result of step S108 is yes, step S105 and the related steps after step S105 can be executed.
  • the second hardness threshold characterizes the rated maximum hardness value of the water in the washing chamber during a working phase that requires soft water washing.
  • the second hardness threshold is greater than the aforementioned first hardness threshold.
  • the range of the second hardness threshold is 8dh-11dh. That is, the second hardness threshold can be set to any value from 8dh to 11dh.
  • the specific value of the second hardness threshold can be set according to specific dishwasher product requirements and the first hardness threshold, which is not limited in this application.
  • control method of the dishwasher further includes:
  • the water softening device is controlled to run a regeneration function before the second working phase is operated.
  • the second hardness threshold value is greater than the first hardness threshold value, and the second hardness threshold value represents the rated maximum hardness value of the water in the washing chamber during a working phase that requires soft water washing.
  • step S102 and step S104 may be executed in sequence, and step S107 may be executed when it is determined that the result of step S104 is no.
  • step S102 and step S104 are executed in sequence, and if the result of step S104 is determined to be no, it can be determined that the hardness value obtained in step S101 is greater than or equal to the second hardness threshold, and then step S107 is executed. .
  • step S109 can also be directly entered: determining whether the hardness value obtained in step S101 is greater than or equal to the second hardness threshold. And when it is determined that the result of step S109 is YES, step S107 is executed. In this way, the softening capacity of the water softening device can be restored before the second operating stage of the dishwasher, so that the water softening device can provide washing water that meets the hardness requirement during the second operating stage of the dishwasher.
  • the embodiment of the present application also provides a control device for a dishwasher.
  • the single dishwashing process of the dishwasher includes at least one working phase, and each working phase includes a water intake phase and a washing phase.
  • the control device for the dishwasher include:
  • the hardness acquisition module 100 is used to acquire the hardness value of the water produced by the water softening device running the softening function at the end of the water intake stage of the current working stage;
  • the softening capability judging module 200 is configured to determine that the water softening device is sufficient to produce water that meets the hardness requirement of the next working stage that requires soft water washing if the hardness value is less than the preset first hardness threshold;
  • the softening control module 300 is used to control the water softening device to run the softening function again after the water intake stage of the current working stage ends until the next working stage that requires soft water washing.
  • the hardness acquisition module 100 detects the hardness value of the water produced by the softening function of the water softening device at the end of the water intake stage of the current working stage, and the softening ability judgment module 200 measures the softening ability of the water softening device according to the hardness value.
  • the acquired hardness value confirms that the water softening device can still produce enough soft water to support the next working stage that requires soft water washing
  • the softening control module 300 controls the water softening device after the water intake stage of the current working stage ends, until the next The softening function needs to be run again during the working phase of soft water washing, so that the softening capacity of the water softening device can be effectively used, the regeneration frequency of the water softening device can be reduced, and the waste of water resources caused by the regeneration function can be reduced.
  • the embodiment of the present application also provides a non-transitory computer-readable storage medium on which a computer program is stored.
  • the computer program is executed by a processor, the method for controlling the dishwasher provided in the embodiment of the present application can be implemented.

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Abstract

一种洗碗机的控制方法和控制装置，其中，洗碗机的单次洗碗流程包括至少一个工作阶段，每一工作阶段包括进水阶段和洗涤阶段，洗碗机的控制方法包括：获取运行软化功能的水软化装置在当前工作阶段的进水阶段末段所产生水的硬度值（S101）；如果硬度值小于预设的第一硬度阈值，则确定水软化装置足够产生满足下一需要软水洗涤的工作阶段的硬度需求的水量；控制水软化装置在当前工作阶段的进水阶段结束后，直至下一需要软水洗涤的工作阶段才再次运行软化功能（S103）。由此，水软化装置的软化能力能够得到有效利用，减少水软化装置的再生频次，有利于减少水资源的浪费。

Description

洗碗机的控制方法和控制装置
本申请要求于2020年04月30日提交中国专利局、申请号为202010363841.4、发明名称为“洗碗机的控制方法”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及生活电器领域，尤其涉及一种洗碗机的控制方法和控制装置。
背景技术
相关技术中应用于洗碗机中的水软化装置被用来对水中的钙镁等金属阳离子进行处理，实现减少洗涤用水的金属阳离子的含量，从而有利于减少水垢产生，提高用户洗碗体验。一些技术中是对水软化装置使用一定时间或者一定次数后就需要进行再生处理以恢复软化能力。
水软化装置的软化能力会受水温、水的流速以及水源水质等因素影响，可能执行再生操作时水软化装置的实际软化能力还可以继续进行软水处理，从而不利于将水软化装置的软化能力更合理的应用，造成增加水软化装置的再生频次，不利于减少再生造成的水资源的浪费。
发明内容
本申请提供一种洗碗机的控制方法，洗碗机的单次洗碗流程包括至少一个工作阶段，每一工作阶段包括进水阶段和洗涤阶段，所述洗碗机的控 制方法包括如下步骤：
获取运行软化功能的水软化装置在当前工作阶段的进水阶段末段所产生水的硬度值；
如果所述硬度值小于预设的第一硬度阈值，则确定所述水软化装置足够产生满足下一需要软水洗涤的工作阶段的硬度需求的水量；
控制所述水软化装置在当前工作阶段的进水阶段结束后，直至下一需要软水洗涤的工作阶段才再次运行软化功能。
本申请还提供了一种洗碗机的控制装置，洗碗机的单次洗碗流程包括至少一个工作阶段，每一工作阶段包括进水阶段和洗涤阶段，所述洗碗机的控制装置包括：
硬度获取模块，用于获取运行软化功能的水软化装置在当前工作阶段的进水阶段末段所产生水的硬度值；
软化能力判断模块，用于如果所述硬度值小于预设的第一硬度阈值，则确定所述水软化装置足够产生满足下一需要软水洗涤的工作阶段的硬度需求的水量；
软化控制模块，用于控制所述水软化装置在当前工作阶段的进水阶段结束后，直至下一需要软水洗涤的工作阶段才再次运行软化功能。
附图说明
图1是根据本申请一示例型实施例提出的一种水软化装置的结构示意图；
图2是图1所示水软化装置的一个视角的剖视图；
图3是根据本申请一示例型实施例提出的一种洗碗机的控制方法的流 程图；
图4是根据本申请一示例型实施例提出的另一种洗碗机的控制方法的流程图；
图5是根据本申请一示例型实施例提出的另一种洗碗机的控制方法的流程图；
图6是根据本申请一示例型实施例提出的另一种洗碗机的控制方法的流程图；
图7是根据本申请一示例型实施例提出的又一种洗碗机的控制方法的流程图；
图8是根据本申请一示例型实施例提出的一种洗碗机的控制装置的结构示意图。
具体实施方式
这里将详细地对示例性实施例进行说明，其示例表示在附图中。下面的描述涉及附图时，除非另有表示，不同附图中的相同数字表示相同或相似的要素。以下示例性实施例中所描述的实施方式并不代表与本申请相一致的所有实施方式。相反，它们仅是与如所附权利要求书中所详述的、本申请的一些方面相一致的装置和方法的例子。
在本申请使用的术语是仅仅出于描述特定实施例的目的，而非旨在限制本申请。在本申请和所附权利要求书中所使用的单数形式的“一种”、“所述”和“该”也旨在包括多数形式，除非上下文清楚地表示其他含义。
应当理解，本申请说明书以及权利要求书中使用的“第一”、“第二”以及类似的词语并不表示任何顺序、数量或者重要性，而只是用来区分不同 的组成部分。同样，“一个”或者“一”等类似词语也不表示数量限制，而是表示存在至少一个；类似的，“多个”等表示两个及两个以上的数量。下面结合附图，对本申请示例型实施例进行详细说明。在不冲突的情况下，下述的实施例及实施方式中的特征可以相互补充或相互组合。
本申请提供的洗碗机的控制方法可应用于具有电容去离子型水软化装置的洗碗机。其中，水软化装置可包括极性相反的第一电极和第二电极，水软化装置通过变换第一电极的极性和第二电极的极性来运行软化功能或再生功能。洗碗机设有控制装置，比如控制电路板。控制装置与水软化装置、洗涤装置以及其他工作部件电连接，以控制其他装置或部件工作。当然，本申请提供的洗碗机的控制方法也可以应用于具有其他类型的水软化装置的洗碗机，水软化装置也可以是离子交换树脂型水软化装置。该种离子交换树脂型水软化装置可以采用阳离子交换树脂从而用自身的氢离子交换水中的一些阳离子(如钙、镁离子)，达到软化水的目的，并且在需要对软水器进行再生时，需要利于水资源对其盐箱中的洗碗盐溶解，并用浓盐水对离子交换树脂进行多次冲洗，以置换出金属钙镁阳离子，实现软水能力的恢复。离子交换树脂类型的水软化装置其工作原理和相关结构为已有技术，本申请不再过多赘述。
在本申请的一些实施方式中，请参照图1和图2所示，电容去离子型水软化装置300包括多个第一电极片1和多个第二电极片2，多个第一电极片1和多个第二电极片2交替设置，相邻的第一电极片1和第二电极片2之间形成有供水流通过的通道，具体的，该通道的实现可通过在第一电极片1与第二电极片2之间塞入绝缘滤网等。绝缘滤网可以为具有孔状结 构的材料，当第一电极片1和第二电极片2通过一定的压力固定在一起后，绝缘滤网填充于第一电极片1和第二电极片2之间，从而形成用以供水从第一电极片1与第二电极片2的中间穿过的通道。
第一电极片1和第二电极片2可以为薄的石墨电极片，也可以是其他导电材料，第一电极片1和第二电极片2分别与电源的正负极相连，从而第一电极片1和第二电极片2之间能够形成电场。
所述第一电极片1设有用以吸附阳离子(如水中的钙镁离子等)的第一吸附层(未图示)，所述第二电极片2设有用以吸附阴离子(如水中的氯离子等)的第二吸附层(未图示)。
当水软化装置300接通电源，第一电极片1与直流电源的负极相连接，第二电极片2与直流电源的正极相连接，此时，当水从第一电极片1与第二电极片2的中间穿过时，水中的阳离子与阴离子分别被吸附到第一吸附层与第二吸附层上，从而起到软水的目的。
当第一吸附层和第二吸附层的吸附能力饱和后，可以通过变换与第一电极片1和第二电极片2所连接的电源正负极方向，即第一电极片1与直流电源的正极相连接，第二电极片2与直流电源的负极相连接，此时，吸附在第一吸附层上的阳离子在电场作用下从第一吸附层上脱离，并且第二吸附层对阳离子的吸附能力较差，阳离子不容易吸附在第二吸附层，因此阳离子又回到水中使得第一吸附层的吸附能力恢复，同理吸附在第二吸附层上的阴离子在电场作用下从第二吸附层上脱离，使得第二吸附层的吸附能力恢复，从而实现再生的目的。
需要说明的是，本申请的一些实施例中，在第一电极和第二电极之间 施加正向电压时，第一电极片1与直流电源的负极相连接，第二电极片2与直流电源的正极相连接。相应地，在第一电极和第二电极之间施加反向电压时，第一电极片1与直流电源的正极相连接，第二电极片2与直流电源的负极相连接。
请参照图3，并在必要时结合图4至图7所示，本申请提供的洗碗机的控制方法可包括如下步骤：
在步骤S101中：获取运行软化功能的水软化装置在第一工作阶段的进水阶段末段所产生水的硬度值。第一工作阶段是当前正在进行的工作阶段。
在步骤S103中，如果所述硬度值小于预设的第一硬度阈值，控制所述水软化装置在第一工作阶段的进水阶段结束后，直至第二工作阶段才继续运行软化功能。其中，第二工作阶段和第一工作阶段可以属于同一个洗碗流程，第二工作阶段为在第一工作阶段之后运行的下一需要软水洗涤的工作阶段。例如，在某一洗碗流程中，第二工作阶段可以紧邻第一工作阶段之后运行，或者第二工作阶段与第一工作阶段之间还间隔其他工作阶段。当然，第二工作阶段和第一工作阶段也可以分属于不同的洗碗流程，例如第一工作阶段为第一次完整的洗碗流程中的某一工作阶段，第二工作阶段为第二次完整的洗碗流程中的某一工作阶段。
确定某一工作阶段是否需要软水洗涤可以基于洗碗机程序预先设定，或者由用户根据实际情况选择。在本申请的一些实施方式中，可以将采用加热洗涤用水的工作阶段确定为需要采用软水洗涤的工作阶段。热水洗涤相比冷水洗涤更容易使得金属阳离子变成难溶解制的碳酸钙和氢氧化镁等，从而容易形成水垢。因此，在本申请的实施方式中，第二工作阶段的 洗涤阶段加热洗涤用水。所述硬度值小于预设的第一硬度阈值时，可确定所述水软化装置足够产生满足第二工作阶段洗涤腔内的洗涤用水的硬度需求的水量。
洗碗机的单次洗碗流程包括至少一个工作阶段，每一工作阶段包括进水阶段和洗涤阶段。具体地，洗碗机的工作阶段可包括预洗阶段、主洗阶段和漂洗阶段中的一种或多种的组合。相应地，预洗阶段包括预洗进水阶段，预洗洗涤阶段。主洗阶段包括主洗进水阶段和主洗洗涤阶段。漂洗阶段包括漂洗进水阶段和漂洗洗涤阶段。
在一些洗碗机产品中，一次完整的洗碗流程其工作阶段只有主洗阶段。在另一些洗碗机产品中，一次完整的洗碗流程其工作阶段包括依序进行的主洗阶段和漂洗阶段。在又一些洗碗机产品中，一次完整的洗碗流程其工作阶段包括依序进行的预洗阶段、主洗阶段及漂洗阶段。具有预洗阶段、主洗阶段和漂洗阶段中两种或两种以上的洗碗机，洗碗机的洗涤模式可包括多种。比如，具有预洗阶段和主洗阶段的洗碗机，其洗涤模式可设置为多种可选择的洗涤模式。比如，在一种洗涤模式中，一次完整的洗碗流程其工作阶段只包括主洗阶段。在另一种模式中，一次完整的洗碗流程其工作阶段包括主洗阶段和漂洗阶段。在又一种模式中，一次完整的洗碗流程其工作阶段包括预洗阶段、主洗阶段以及漂洗阶段。
洗碗机的各工作阶段可采用加热的洗涤用水，也可采用不加热的洗涤用水。洗碗机的各工作阶段可以添加洗涤剂，也可不添加洗涤剂。比如，漂洗阶段可包括采用热水对餐具进行洗涤的热水漂洗阶段或采用不加热的水(比如自来水)对餐具进行洗涤的冷水漂洗阶段。需要采用加热的洗涤 用水的工作阶段，一般在其洗涤阶段需对洗涤用水进行加热。
本申请的一些实施例以洗碗机的一次洗碗流程其工作阶段包括主洗阶段及漂洗阶段为例进行说明。其中，在主洗阶段通过添加洗涤剂并采用热水洗涤的方式对餐具进行洗涤。漂洗阶段为采用加热的水对餐具进行洗涤的热水漂洗阶段。在一些场景中，漂洗阶段可添加光亮剂或者亮碟剂以对餐具进行洗涤。相应地，第一工作阶段为主洗阶段。第二工作阶段为热漂洗阶段。所述第一工作阶段与所述第二工作阶段同属于同一个洗碗流程。当然，在一些实施例中，洗碗机的第一工作阶段和第二工作阶段之间，还可包括不需要加热洗涤用水的第三工作阶段。即洗碗机的工作阶段在主洗阶段及热漂洗阶段之间还可包括不需要加热洗涤用水的工作阶段，比如可以直接采用自来水对餐具进行清洗的工作阶段。
本申请实施例中，第一工作阶段的进水阶段末段可以理解为自所述第一工作阶段的进水阶段快要结束的某一时刻直至该进水阶段结束的一个时段。比如，在一些实施例中，第一工作阶段的进水阶段末段可以设定为自所述第一工作阶段的进水阶段总时长的80％持续至进水阶段结束。在另一些实施例中，第一工作阶段的进水阶段末段可以设定为自所述第一工作阶段的进水阶段总时长的90％持续至进水阶段结束。在又一些实施例中，第一工作阶段的进水阶段末段可以设定为自所述第一工作阶段的进水阶段总时长的95％持续至进水阶段结束。进水阶段末段可根据具体情况进行设置，本申请对此不做限定。
在步骤S101中，在一些实施例中，获取运行软化功能的水软化装置第一工作阶段的进水阶段末段所产生水的硬度值，可具体通过如下步骤实现：
在步骤S1011中，检测第一工作阶段的进水阶段末段水软化装置出水口处水的总溶解性固体物质值。
在步骤S1012中，根据总溶解性固体物质值与硬度值的换算关系，计算出所检测到的总溶解性固体物质值所对应的硬度值。
具体可在水软化装置的出水口处设置总溶解性固体物质值检测仪，来检测进水阶段末段水软化装置出水口处水的总溶解性固体物质值。比如，该总溶解性固体物质值检测仪可实时检测水软化装置运行软化功能所产生水的总溶解性固体物质值。洗碗机的总溶解性固体物质值检测仪或控制装置可根据该洗碗机中预先设定的进水阶段末段，获取该进水阶段末段这一时段中所实时检测到的总溶解性固体物质值。若所检测到的总溶解性固体物质值为多个数值时，可以取该多个数值中最大的数值作为该进水阶段末段水软化装置出水口处水的总溶解性固体物质值。当然，在有些实施例中，也可取该多个数值的均值作为该进水阶段末段水软化装置出水口处水的总溶解性固体物质值。
当然，该总溶解性固体物质值检测仪也可根据洗碗机中所设定的进水阶段末段，直接在进水阶段末段检测水软化装置运行软化功能所产生水的总溶解性固体物质值。本申请对此不做限定，可根据具体应用环境进行设置。
在另一些实施例中，获取运行软化功能的水软化装置第一工作阶段的进水阶段末段所产生水的硬度值，可具体通过如下步骤实现：
在步骤S1013中，检测第一工作阶段的进水阶段末段水软化装置出水口处水的电导率值。
在步骤S1014中，根据电导率值与硬度值的换算关系，计算出所检测到的电导率值所对应的硬度值。
具体可在水软化装置的出水口处设置电导率仪，来检测进水阶段末段水软化装置出水口处水的电导率值。比如，该电导率仪可实时检测水软化装置运行软化功能所产生水的电导率值。洗碗机的电导率仪或控制装置可根据该洗碗机中预先设定的进水阶段末段，获取进水阶段末段这一时段中所实时检测到的电导率值。若所检测到的电导率值为多个数值时，可以取该多个数值中最大的数值作为该进水阶段末段水软化装置出水口处水的电导率值。当然，在有些实施例中，也可取该多个数值的均值作为该进水阶段末段水软化装置出水口处水的电导率值。
同样，该电导率仪也可根据洗碗机中所设定的进水阶段末段，直接在进水阶段末段检测水软化装置运行软化功能所产生水的电导率值。本申请对此不做限定，可根据具体应用环境进行设置。
需要说明的是，在第一工作阶段的进水阶段结束后，可控制水软化装置停止运行软化功能，以待后续需要时启动。相应地，停止运行软化功能可关闭水软化装置的软化功能，也可对水软化装置进行断电。
在一些实施例中，在步骤S103之前，所述洗碗机的控制方法可包括步骤S102：确定步骤S101中所获取的硬度值是否小于第一硬度阈值。
在步骤S102的确定结果为是的情况下，控制所述洗碗机执行步骤S103。
对于在进水阶段末段水软化装置运行软化功能所产生水的硬度值小于预设的第一硬度阈值的，可以理解为该水软化装置继续运行软化功能所产 生的水能够满足需要软水洗涤的第二工作阶段的用水需求，即该水软化装置继续运行软化功能足够产生满足第二工作阶段的硬度需求的水量。
在一些实施方式中，第一硬度阈值的范围为2dh～8dh。即第一硬度阈值可以设定为2dh～8dh中的任一值。第一硬度阈值的具体数值可根据具体的洗碗机产品要求等进行设置，本申请对此不做限定。本申请一些实施方式所涉及的水的硬度值均采用目前德国所用的水硬度标准。
在一些实施例中，请结合图4所示，在步骤S102的确定结果为是的情况下，步骤S103可具体包括如下步骤：
在步骤S1031中，确定第一工作阶段和第二工作阶段之间是否存在不需要软水洗涤的第三工作阶段。具体的，可以确定第一工作阶段和第二工作阶段之间是否存在不需要加热洗涤用水的第三工作阶段。
在步骤S1031的确定结果为否的情况下，执行步骤S1032，在步骤S1031确定结果为是的情况下，执行步骤S1033。
在步骤S1032中，控制所述水软化装置在第二工作阶段的进水阶段继续运行软化功能。
在步骤S1033中，在所述第三工作阶段的进水阶段，控制所述水软化装置处于断电状态以及控制将自来水通入洗涤腔。
即对于第一工作阶段和第二工作阶段之间没有其他需要采用加热洗涤用水的工作阶段的实施例而言，可控制洗碗机的水软化装置在第二工作阶段的进水阶段再次运行软化功能，并控制水软化装置继续运行软化功能所产生的水流入洗涤腔以作为第二工作阶段的洗涤用水。
而对于在第一工作阶段和第二工作阶段之间存在至少一个不需要加热 洗涤用水的第三工作阶段的实施例而言，则在第三工作阶段的进水阶段，控制水软化装置处于断电状态以及控制将自来水通入洗涤腔，以作为第三工作阶段的洗涤用水。自来水通入洗涤腔的方式可以是自来水阀的出口与洗涤腔通过管路直接连通，或者自来水先进入断电状态的软水器，从软水器的水流通道进入洗涤腔，由于此时软水器处于断电状态，其对通道内的自来水不进行软化功能或者再生功能，相当于给自来水提供了一个流动通道。
进而在完成第三工作阶段后，控制洗碗机的水软化装置在第二工作阶段的进水阶段再次运行软化功能，并控制水软化装置继续运行软化功能所产生的水流入洗涤腔以作为第二工作阶段的洗涤用水。
在另一些实施例中，请结合图5所示，在步骤S102的确定结果为是的情况下，步骤S103可具体包括步骤S1031、步骤S1032以及步骤S1034，并且在步骤S1031的确定结果为否的情况下，执行步骤S1032，在步骤S1031确定结果为是的情况下，执行步骤S1034。
步骤S1031和步骤S1032具体可参见上述相关描述。
在步骤S1034中，控制所述水软化装置运行再生功能以及将运行再生功能产生的水通入洗涤腔。
在一些实施方式中，即对于在确定所检测到的第一工作阶段的进水阶段末段水软化装置运行软化功能所产生水的硬度值小于第一硬度阈值，且在第一工作阶段和第二工作阶段之间存在至少一个不需要软水洗涤的第三工作阶段的，例如确定在第一工作阶段和第二工作阶段之间存在至少一个不需要加热洗涤用水的第三工作阶段，则在第三工作阶段的进水阶段，可 控制所述水软化装置运行再生功能以及将运行再生功能产生的水通入洗涤腔，以使得水软化装置运行再生功能所产生的硬度相对较大的水在不需要软水洗涤的洗涤阶段能够得到很好的利用，有利于减少水资源的浪费。
当然，在其他一些实施例中，在步骤S1031的确定结果为是的情况下，还可控制水软化装置运行再生功能所产生的水通过洗碗机的排水管路排出；并控制将自来水通入洗涤腔，以作为第三工作阶段的洗涤用水。本申请对此不作限定，可根据具体应用环境进行设置。
在一些实施例中，水软化装置的出水口与洗涤腔之间可通过管道连通。比如，可在洗涤腔的入水口处、或管道中或水软化装置的出水口处设置阀门，从而可通过控制阀门的开闭来控制水软化装置的出水口与洗涤腔之间管道的开通或者闭合。即可通过控制阀门开通水软化装置的出水口与洗涤腔之间管道并且闭合水软化装置的出水口与排水管路之间管道，来实现运行软化功能的水软化装置所产生的水流入洗碗机的洗涤腔。当然，对于水软化装置在运行再生功能所产生的软化水需要进入洗涤腔的，也可采用类似的方法实现，此处不予以赘述。此外，水软化装置的出水口与洗碗机的排水管路之间也可通过管道连通。具体地，水软化装置的出水口与洗碗机的排水管路之间也可设置阀门，以通过控制阀门的开闭来控制水软化装置的出水口与洗碗机的排水管路之间管道的开通或者闭合。
在另一些实施例中，水软化装置的出水口、洗涤腔以及排水管路三者可通过管道串接。即水软化装置的出水口通过洗涤腔与排水管路连通。可在洗涤腔的入水口处和排水管路的入水口处、或管道中或水软化装置的出水口处设置阀门，从而可通过控制阀门的开闭来控制水软化装置的出水口 与洗涤腔之间的开通或者闭合，以及控制洗涤腔的出水口与排水管路之间管道的开通或者闭合。相应地，在需要排水时则开通洗涤腔的出水口与排水管路之间管道，从而实现洗碗机的洗涤腔内的水从排水管路排出。
进一步，在步骤S101之后，所述洗碗机的控制方法还包括：
在确定所述硬度值满足大于或等于第一硬度阈值，但小于第二硬度阈值的条件下：如第一工作阶段和第二工作阶段之间存在至少一个不需要软水洗涤的第三工作阶段，则控制所述水软化装置在第三工作阶段的进水阶段再次运行软化功能以及将运行软化功能产生的水通入洗涤腔；否则控制所述水软化装置在第二工作阶段运行之前运行再生功能。
具体地，在一些实施例中，可通过如图3所示的步骤S102、步骤S104步骤S105、步骤S106以及步骤S107来实现。其中，在步骤S101之后，可执行步骤S102，并在步骤S102的确定结果为否的情况下通过执行步骤S104，在步骤S104的确定结果为是的情况下执行步骤S105，进一步在步骤S105的确定结果为是的情况下执行步骤S106，而在步骤S105的确定结果为否的情况下执行步骤S107。步骤S102可参考上述相关描述。
在步骤S104中，确定步骤S101中所获取的硬度值是否小于第二硬度阈值。
在步骤S105中，确定第一工作阶段和第二工作阶段之间是否存在不需要软水洗涤的第三工作阶段。
在步骤S106中，控制所述水软化装置在第三工作阶段的进水阶段继续运行软化功能以及将运行软化功能产生的水通入洗涤腔。
在步骤S107中，控制所述水软化装置在第二工作阶段运行之前运行再 生功能。如此，可以在第二工作阶段运行之前恢复水软化装置的软化能力，以便水软化装置在洗碗机的第二工作阶段能够提供满足硬度要求的洗涤用水。
此外，在一些实施例中，在上述步骤S104的确定结果为否的情况下，也可执行步骤S107。
需要说明的是，在另一些实施例中，如图6所示，在上述步骤S101之后，也可直接进入步骤S108：确定步骤S101中所获取的硬度值是否大于或等于第一硬度阈值并且小于第二硬度阈值。进而在步骤S108的确定结果为是的条件下可执行步骤S105以及步骤S105之后的相关步骤。
所述第二硬度阈值表征在需要软水洗涤的工作阶段所述洗涤腔内水的额定最大硬度值。第二硬度阈值大于上述第一硬度阈值。在一些实施例中，第二硬度阈值的范围为8dh～11dh。即第二硬度阈值可以设定为8dh～11dh中的任一值。第二硬度阈值的具体数值可根据具体的洗碗机产品要求以及第一硬度阈值等进行设置，本申请对此不做限定。
进一步，在步骤S101之后，所述洗碗机的控制方法还包括：
如果所述硬度值大于或等于第二硬度阈值，则控制所述水软化装置在所述第二工作阶段运行之前运行再生功能。其中，所述第二硬度阈值大于所述第一硬度阈值，所述第二硬度阈值表征在需要软水洗涤的工作阶段所述洗涤腔内水的额定最大硬度值。
具体地，在一些实施例中，如图3所示，在步骤S101之后，可依次执行步骤S102和步骤S104，并在确定步骤S104的结果为否的情况下执行步骤S107来实现。如图3所示，在依次执行步骤S102和步骤S104，并在确 定步骤S104的结果为否的情况下即可确定步骤S101中所获取的硬度值大于或等于第二硬度阈值，进而执行步骤S107。
当然，在另一些实施例中，如图7所示，在步骤S101之后，也可直接进入步骤S109：确定步骤S101中所获取的硬度值是否大于或等于第二硬度阈值。并在确定步骤S109的结果为是的情况下执行步骤S107。如此，可在洗碗机运行第二工作阶段之前恢复水软化装置的软化能力，以便水软化装置在洗碗机的第二工作阶段能够提供满足硬度要求的洗涤用水。
本申请的实施例还提供了一种洗碗机的控制装置，洗碗机的单次洗碗流程包括至少一个工作阶段，每一工作阶段包括进水阶段和洗涤阶段，洗碗机的控制装置包括：
硬度获取模块100，用于获取运行软化功能的水软化装置在当前工作阶段的进水阶段末段所产生水的硬度值；
软化能力判断模块200，用于如果所述硬度值小于预设的第一硬度阈值，则确定所述水软化装置足够产生满足下一需要软水洗涤的工作阶段的硬度需求的水量；
软化控制模块300，用于控制所述水软化装置在当前工作阶段的进水阶段结束后，直至下一需要软水洗涤的工作阶段才再次运行软化功能。
硬度获取模块100检测当前工作阶段的进水阶段末段水软化装置运行软化功能所产生水的硬度值，软化能力判断模块200根据该硬度值来对水软化装置的软化能力进行衡量，并在根据所获取的硬度值确定水软化装置还能产生足够的软水水量支撑下一需要软水洗涤的工作阶段时，软化控制模块300控制该水软化装置在当前工作阶段的进水阶段结束后，直至下一 需要软水洗涤的工作阶段才再次运行软化功能，从而有利于使得水软化装置的软化能力能够得到有效利用，减少水软化装置的再生频次，并且有利于减少为满足再生功能造成的水资源的浪费。
本申请实施例还提供一种非临时性计算机可读存储介质，其上存储有计算机程序，上述计算机程序被处理器执行时可以实现本申请实施例提供的洗碗机的控制方法。

Claims (12)

  1. 一种洗碗机的控制方法，其特征在于，洗碗机的单次洗碗流程包括至少一个工作阶段，每一工作阶段包括进水阶段和洗涤阶段，所述洗碗机的控制方法包括如下步骤：
    获取运行软化功能的水软化装置在当前工作阶段的进水阶段末段所产生水的硬度值；
    如果所述硬度值小于预设的第一硬度阈值，则控制所述水软化装置在当前工作阶段的进水阶段结束后，直至下一需要软水洗涤的工作阶段才再次运行软化功能；
    其中，所述第一硬度阈值为当前水软化装置的剩余软化能力足够产生满足下一需要软水洗涤的工作阶段的硬度需求的水量的最大值。
  2. 如权利要求1所述的控制方法，其特征在于，所述水软化装置包括堆叠在一起的若干第一电极和若干第二电极，所述第一电极和所述第二电极交替设置且该两个电极极性相反；所述第一电极和与其相邻的第二电极之间形成供水流通过的通道，该两个电极中的一个朝向所述通道的一侧设有用以吸附目标阳离子的吸附层；所述水软化装置通过变换所述第一电极的极性和所述第二电极的极性实现软化功能和再生功能的切换。
  3. 如权利要求2所述的控制方法，其特征在于，若所述当前工作阶段和所述下一需要软水洗涤的工作阶段之间存在至少一个不需要软水洗涤的工作阶段，则在该不需要软水洗涤的工作阶段对应的进水阶段，控制所述水软化装置处于断电状态以及控制将自来水通入洗涤腔，或者控制所述水软化装置运行再生功能以及将运行再生功能产生的水通入洗涤腔。
  4. 如权利要求2所述的控制方法，其特征在于，所述获取运行软化功能的水软化装置在当前工作阶段的进水阶段末段所产生水的硬度值的步骤之后，所述控制方法还包括：
    在所述硬度值满足大于或等于第一硬度阈值，但小于第二硬度阈值的条件下，如所述当前工作阶段和下一需要软水洗涤的工作阶段之间存在至少一个不需要软水洗涤的工作阶段，则在该不需要软水洗涤的工作阶段对应的进水阶段，控制所述水软化装置再次运行软化功能以及将运行软化功能产生的水通入洗涤腔；
    其中，所述第二硬度阈值表征在需要软水洗涤的工作阶段洗涤腔内洗涤用水的额定最大硬度值。
  5. 根据权利要求2所述的控制方法，其特征在于，所述获取运行软化功能的水软化装置在当前工作阶段的进水阶段末段所产生水的硬度值的步骤之后，所述控制方法还包括：
    如果所述硬度值大于或等于第二硬度阈值，则控制所述水软化装置在下一需要软水洗涤的工作阶段运行之前运行再生功能；其中，所述第二硬度阈值大于所述第一硬度阈值，所述第二硬度阈值表征在需要软水洗涤的工作阶段所述洗涤腔内洗涤用水的额定最大硬度值。
  6. 如权利要求1所述的控制方法，其特征在于，所述获取运行软化功能的水软化装置在当前工作阶段的进水阶段末段所产生水的硬度值包括：
    检测所述当前工作阶段的进水阶段末段水软化装置出水口处水的总溶解性固体物质值；根据总溶解性固体物质值与硬度值的换算关系，计算出所检测到的总溶解性固体物质值所对应的硬度值。
  7. 如权利要求1所述的控制方法，其特征在于，检测所述当前工作阶段的进水阶段末段水软化装置出水口处水的电导率值；根据电导率值与硬度值的换算关系，计算出所检测到的电导率值所对应的硬度值。
  8. 根据权利要求1至7任一所述的控制方法，其特征在于，所述当前工作阶段的进水阶段末段自所述当前工作阶段的进水阶段总时长的80％至进水阶段结束。
  9. 如权利要求1至7任一所述的控制方法，其特征在于，所述第一硬度阈值的范围为2dh～8dh。
  10. 如权利要求4或5所述的控制方法，其特征在于，所述第二硬度阈值的范围为8dh～11dh。
  11. 如权利要求1至10任一所述的控制方法，其特征在于，所述洗碗机的单次洗碗流程包括依序进行的预洗工作阶段、主洗工作阶段和漂洗工作阶段，其中，所述洗碗机的主洗工作阶段和漂洗工作阶段均为需要采用软水洗涤的工作阶段，且所述主洗工作阶段和所述漂洗工作阶段均对洗涤用水加热。
  12. 一种洗碗机的控制装置，洗碗机的单次洗碗流程包括至少一个工作阶段，每一工作阶段包括进水阶段和洗涤阶段，所述洗碗机的控制装置包括：
    硬度获取模块，用于获取运行软化功能的水软化装置在当前工作阶段的进水阶段末段所产生水的硬度值；
    软化能力判断模块，用于如果所述硬度值小于预设的第一硬度阈值，则确定所述水软化装置足够产生满足下一需要软水洗涤的工作阶段的硬度 需求的水量；
    软化控制模块，用于控制所述水软化装置在当前工作阶段的进水阶段结束后，直至下一需要软水洗涤的工作阶段才再次运行软化功能。
PCT/CN2021/088879 2020-04-30 2021-04-22 洗碗机的控制方法和控制装置 WO2021218758A1 (zh)

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