CN111685679B - Control method of dish washer - Google Patents
Control method of dish washer Download PDFInfo
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- CN111685679B CN111685679B CN202010365510.4A CN202010365510A CN111685679B CN 111685679 B CN111685679 B CN 111685679B CN 202010365510 A CN202010365510 A CN 202010365510A CN 111685679 B CN111685679 B CN 111685679B
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- water
- softening device
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- dishwasher
- regeneration
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- 238000000034 method Methods 0.000 title claims abstract description 66
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 425
- 238000005406 washing Methods 0.000 claims abstract description 186
- 230000008929 regeneration Effects 0.000 claims abstract description 121
- 238000011069 regeneration method Methods 0.000 claims abstract description 121
- 238000001179 sorption measurement Methods 0.000 claims abstract description 15
- 150000001768 cations Chemical class 0.000 claims abstract description 7
- 238000010438 heat treatment Methods 0.000 claims description 13
- 239000007787 solid Substances 0.000 claims description 10
- 238000006243 chemical reaction Methods 0.000 claims description 4
- 230000005611 electricity Effects 0.000 claims 2
- 238000004851 dishwashing Methods 0.000 description 11
- 238000002242 deionisation method Methods 0.000 description 5
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 3
- 150000001450 anions Chemical class 0.000 description 3
- 239000011575 calcium Substances 0.000 description 3
- 238000001514 detection method Methods 0.000 description 3
- 239000008233 hard water Substances 0.000 description 3
- 239000008399 tap water Substances 0.000 description 3
- 235000020679 tap water Nutrition 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 2
- 230000003213 activating effect Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 2
- 229910052791 calcium Inorganic materials 0.000 description 2
- 229910052749 magnesium Inorganic materials 0.000 description 2
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- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229920006395 saturated elastomer Polymers 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- JLVVSXFLKOJNIY-UHFFFAOYSA-N Magnesium ion Chemical compound [Mg+2] JLVVSXFLKOJNIY-UHFFFAOYSA-N 0.000 description 1
- 229910001424 calcium ion Inorganic materials 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 239000003599 detergent Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 239000007772 electrode material Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229910001425 magnesium ion Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 239000008234 soft water Substances 0.000 description 1
Images
Classifications
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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
- A47L15/0028—Washing phases
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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
- A47L15/42—Details
- A47L15/4214—Water supply, recirculation or discharge arrangements; Devices therefor
-
- 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
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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
- A47L15/42—Details
- A47L15/4297—Arrangements for detecting or measuring the condition of the washing water, e.g. turbidity
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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
- A47L15/42—Details
- A47L15/46—Devices for the automatic control of the different phases of cleaning ; Controlling devices
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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
- 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
- A47L2401/03—Operation mode, e.g. delicate washing, economy washing, reduced time, sterilizing, water softener regenerating, odor eliminating or service
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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
- 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
- A47L2401/06—Water supply, circulation or discharge information
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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
- 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
- A47L2401/09—Water level
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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
- 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
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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
- 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
- A47L2401/30—Variation of electrical, magnetical or optical quantities
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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
- 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
- A47L2501/01—Water supply, e.g. opening or closure of the water inlet valve
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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
- 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
- A47L2501/02—Water discharge, e.g. opening or closure of discharge valve
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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
- 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
- A47L2501/03—Water recirculation, e.g. control of distributing valves for redirection of water flow
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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
- 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
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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
- 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
- A47L2501/34—Change machine operation from normal operational mode into special mode, e.g. service mode, resin regeneration mode, sterilizing mode, steam mode, odour eliminating mode or special cleaning mode to clean the hydraulic circuit
Landscapes
- Engineering & Computer Science (AREA)
- Water Supply & Treatment (AREA)
- Washing And Drying Of Tableware (AREA)
- Treatment Of Water By Ion Exchange (AREA)
Abstract
The application discloses a control method of a dishwasher, which comprises the following steps: when it is determined that the washing water does not need to be heated in the washing stage to be operated by the dishwasher, controlling water generated by the water softening device for operating the regeneration function to flow into a washing cavity of the dishwasher or controlling water in the regeneration water tank to flow into the washing cavity of the dishwasher; when it is determined that the washing water needs to be heated in the washing stage of the dishwasher to be operated, controlling water generated by the water softening device operating the regeneration function to be discharged or flow into the regeneration water tank through the drainage pipeline; the water softening device comprises a plurality of first electrodes and a plurality of second electrodes which are stacked together, wherein the first electrodes and the second electrodes are alternately arranged and have opposite polarities, a channel for water to pass through is formed between each first electrode and the corresponding second electrode adjacent to the first electrode, and one side, facing the channel, of one of the two electrodes is provided with an adsorption layer for adsorbing target cations; the water softening device switches the softening function and the regeneration function by exchanging the polarity of the first electrode and the polarity of the second electrode.
Description
Technical Field
The application relates to the field of household appliances, in particular to a control method of a dish washing machine.
Background
In the related art, an electrode material is adopted to adsorb metal cations such as calcium, magnesium and the like in water so as to realize a capacitive deionization type water softener for softening water quality, and after the water softener is saturated in adsorption capacity of the metal cations, a regeneration function is required to be executed to desorb the adsorbed calcium, magnesium and the like into the water so as to recover the softening capacity of a water softening device. The water softener is mainly applied to professional large-scale water treatment equipment in some technologies, and when the dishwasher adopts the capacitive deionization water softener, how to control the regeneration process of the capacitive deionization water softener by combining the washing flow of the dishwasher, so that the problem that water resources are reasonably utilized to become a product to be solved is solved.
Disclosure of Invention
The present application provides a control method of a dishwasher, the control method of the dishwasher including the steps of:
when the washing stage to be operated of the dishwasher is determined to be a first washing stage without heating washing water, controlling water generated by a water softening device for operating a regeneration function to flow into a washing cavity of the dishwasher or controlling water in a regeneration water tank to flow into the washing cavity of the dishwasher for the first washing stage; the regeneration water tank stores water generated by the water softening device running a regeneration function;
when the washing stage to be operated of the dishwasher is determined to be a second washing stage requiring heating of the washing water, the water generated by the water softening device controlling the operation of the regeneration function is discharged or flows into the regeneration water tank through a drain line;
the water softening device comprises a plurality of first electrodes and a plurality of second electrodes which are stacked together, wherein the first electrodes and the second electrodes are alternately arranged and the polarities of the two electrodes are opposite; a channel for water to pass through is formed between the first electrode and the second electrode adjacent to the first electrode, and one side of one of the two electrodes, which faces the channel, is provided with an adsorption layer for adsorbing target cations; the water softening device switches the softening function and the regeneration function by exchanging the polarity of the first electrode and the polarity of the second electrode.
According to the control method of the dishwasher provided by the embodiment, when the washing stage to be operated does not need to heat the washing water, the water generated by the regeneration function of the water softening device or the water stored in the regeneration water tank is used in the washing stage, otherwise, the water generated by the regeneration function of the water softening device is discharged or flows into the regeneration water tank, so that the water with relatively high hardness generated by the regeneration function of the water softening device can be well utilized in the washing stage which does not need to be heated, and the waste of water resources is reduced.
Drawings
FIG. 1(a) is a flowchart of a control method of a dishwasher according to an exemplary embodiment of the present application;
FIG. 1(b) is a flowchart of another dishwasher control method according to an exemplary embodiment of the present application;
FIG. 1(c) is a flowchart of another dishwasher control method according to an exemplary embodiment of the present application;
FIG. 2 is a flow chart of another method of controlling a dishwasher in accordance with an exemplary embodiment of the present application;
FIG. 3 is a flow chart of another method of controlling a dishwasher in accordance with an exemplary embodiment of the present application;
FIG. 4 is a flow chart of another method of controlling a dishwasher in accordance with an exemplary embodiment of the present application;
FIG. 5 is a flow chart of another method of controlling a dishwasher in accordance with an exemplary embodiment of the present application;
FIG. 6 is a flow chart of yet another method of controlling a dishwasher in accordance with an exemplary embodiment of the present application;
FIG. 7(a) is a schematic diagram of a water softening device according to an exemplary embodiment of the present application;
fig. 7(b) is a cross-sectional view from one perspective of the water softener shown in fig. 7 (a).
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present application, as detailed in the appended claims.
The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in this application and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.
It should be understood that the use of "first," "second," and similar terms in the description and claims do not denote any order, quantity, or importance, but rather are used to distinguish one element from another. Similarly, the use of the terms "a" or "an" and the like do not denote a limitation of quantity, but rather denote the presence of at least one; similarly, "a plurality" and the like mean two or more.
The following describes exemplary embodiments of the present application in detail with reference to the drawings. The features of the following examples and embodiments can be supplemented or combined with each other without conflict.
The control method of the dishwasher provided by the application can be applied to the dishwasher with the capacitive deionization type water softening device. Wherein the water softener may include first and second electrodes having opposite polarities, and the water softener operates a regeneration function by changing the polarities of the first and second electrodes to restore the soft water capacity of the water softener. The dishwasher is provided 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 other devices or components to work.
Referring to fig. 7(a) and 7(b), the capacitive deionization water softener 300 includes a plurality of first electrode sheets 1 and a plurality of second electrode sheets 2, the plurality of first electrode sheets 1 and the plurality of second electrode sheets 2 are alternately arranged, a channel for water to pass through is formed between the adjacent first electrode sheets 1 and second electrode sheets 2, and specifically, an insulating filter screen or the like can be inserted between the first electrode sheets 1 and the second electrode sheets 2. The insulating filter screen may be made of a material having a porous structure, and when 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, so as to form a channel for water to pass through between the first electrode sheet 1 and the second electrode sheet 2.
The first electrode plate 1 and the second electrode plate 2 can be thin graphite electrode plates or other conductive materials, the first electrode plate 1 and the second electrode plate 2 are respectively connected with the positive electrode and the negative electrode of a power supply, and therefore an electric field can be formed between the first electrode plate 1 and the second electrode plate 2.
The first electrode sheet 1 may be provided with a first adsorption layer (not shown) for adsorbing target cations (e.g., calcium and magnesium ions in water), the second electrode sheet 2 may be provided with a second adsorption layer (not shown) for adsorbing anions (e.g., chloride ions in water), and the second electrode sheet 2 may not be provided with an adsorption layer for anions.
When the water softening device 300 is powered on, the first electrode plate 1 is connected with the negative electrode of the direct current power supply, and the second electrode plate 2 is connected with the positive electrode of the direct current power supply, at the moment, when water passes through the middle of the first electrode plate 1 and the second electrode plate 2, cations and anions in the water are respectively adsorbed on the first adsorption layer and the second adsorption layer, so that the purpose of softening the water is achieved.
After the adsorption capacities of the first adsorption layer and the second adsorption layer are saturated, the adsorption capacities of the first adsorption layer and the second adsorption layer can be recovered by exchanging the directions of the positive electrode and the negative electrode of a power supply connected with the first electrode plate 1 and the second electrode plate 2, namely the first electrode plate 1 is connected with the positive electrode of a direct-current power supply, and the second electrode plate 2 is connected with the negative electrode of the direct-current power supply.
The control method of the dishwasher provided by the application can comprise the following steps:
in step S101: when it is determined that the washing stage in which the dishwasher is to be operated is a first washing stage in which the washing water does not need to be heated, controlling the water generated by the water softening device operating the regeneration function to flow into the washing chamber of the dishwasher or controlling the water in the regeneration water tank to flow into the washing chamber of the dishwasher for the first washing stage. Wherein the regeneration water tank stores water generated by the operation of the water softening device with a regeneration function.
In step S102: when it is determined that the washing stage in which the dishwasher is to be operated is the second washing stage in which the washing water needs to be heated, the water generated from the water softening device controlling the regeneration function is discharged or flows into the regeneration tank through the drain line.
The washing phase of the dishwasher may comprise a combination of one or more of a pre-wash phase, a main wash phase and a rinse phase. For example, in some dishwasher products, a complete dishwashing cycle has only a main wash stage for the wash stage. In other dishwasher products, a complete dishwashing cycle includes a wash phase comprising a main wash phase and a rinse phase performed sequentially. In still other dishwasher products, a complete dishwashing cycle includes washing stages comprising a pre-wash stage, a main wash stage and a rinse stage performed sequentially. Some dishwashers also have a drying function and the like after the washing process is finished.
The dishwasher may use heated or unheated wash water for each washing stage. The washing agent may or may not be added in each washing stage of the dishwasher. For example, the rinsing stage may be embodied as a hot water rinsing stage in which the dishes are washed with hot water or a cold water rinsing stage in which the dishes are washed with unheated water (such as tap water).
Some embodiments of the present application are described in the context of a dishwasher having a wash phase comprising a pre-wash phase, a main wash phase and a rinse phase. Wherein the dishes are washed with unheated water (e.g., tap water) in a pre-washing stage, and washed with detergent in a main washing stage by hot water washing. The rinse phase is a cold water rinse phase in which the dishes are washed with unheated water, such as tap water. In some scenarios, the rinse stage may add a brightener or a dish polish to wash the dishes. Accordingly, the first washing stage may comprise a pre-wash stage or a cold water rinse stage. The second wash stage may comprise a main wash stage. Of course, in other embodiments, if the rinsing stage is hot water rinsing, the second washing stage may also include a hot water rinsing stage.
In step S101, it is determined that the washing stage to be operated of the dishwasher is the first washing stage that does not require heating of the washing water, which may be implemented by specifically determining that the washing stage to be operated of the dishwasher is a pre-washing stage or a cold water rinsing stage, and it is determined that the washing stage to be operated does not require heating of the washing water according to a characteristic that the dish is washed by non-heated water in the pre-washing stage or the cold water rinsing stage. For example, when it is determined that the washing stage to be operated by the dishwasher is a pre-washing stage, the water generated by the water softening device for controlling the regeneration function is flowed into the washing chamber of the dishwasher.
Accordingly, in step S102, it is determined that the washing stage to be operated by the dishwasher is the second washing stage requiring heating of the washing water, and it may be determined that the washing stage to be operated requires heating of the washing water according to the characteristic that the tableware needs to be washed by hot water in the main washing stage or the hot water rinsing stage by specifically determining that the washing stage to be operated by the dishwasher is the main washing stage or the hot water rinsing stage. For example, when the washing stage to be operated by the dishwasher is determined as the main washing stage, the water generated by the water softening device for controlling the regeneration function flows into the drain line instead of the washing chamber, thereby reducing the possibility of scale generation at the tableware and dishwasher lines.
In some embodiments, the water outlet of the water softening device and the washing chamber and the water outlet of the water softening device and the drain line may be in communication via a pipe. For example, valves may be provided at the water inlet of the washing chamber and the water inlet of the drain line, or in the pipe or at the water outlet of the water softening device, so that the opening or closing of the pipe between the water outlet of the water softening device and the washing chamber, and the opening or closing of the pipe between the water outlet of the water softening device and the drain line may be controlled by controlling the opening and closing of the valves. Correspondingly, when the washing stage to be operated of the dishwasher is determined to be the pre-washing stage, the pipeline between the water outlet of the water softening device and the washing chamber can be opened through the control valve, and the pipeline between the water outlet of the water softening device and the water drainage pipeline is closed, so that water generated by the water softening device with the regeneration function can flow into the washing chamber of the dishwasher. In addition, the water generated by the water softening device during the operation of the softening function needs to enter the washing chamber, and the water softening device can be implemented by a similar method, which is not described herein again.
In other embodiments, the water outlet of the water softener, the washing chamber and the drain line can be connected in series through pipes. Namely, the water outlet of the water softening device is communicated with the water drainage pipeline through the washing cavity. Valves can be arranged at the water inlet of the washing cavity and the water inlet of the water drainage pipeline, or in the pipeline or at the water outlet of the water softening device, so that the opening or closing between the water outlet of the water softening device and the washing cavity and the opening or closing of the pipeline between the water outlet of the washing cavity and the water drainage pipeline can be controlled by controlling the opening and closing of the valves. Correspondingly, when the washing stage to be operated of the dishwasher is determined to be the pre-washing stage, the pipeline between the water outlet of the water softening device and the washing chamber can be opened through the control valve, and the pipeline between the water outlet of the washing chamber and the water drainage pipeline is closed, so that water generated by the water softening device with the regeneration function can flow into the washing chamber of the dishwasher. When the water is drained, the pipeline between the water outlet of the washing cavity and the water drainage pipeline is opened, so that the water in the washing cavity of the dish washing machine is drained from the water drainage pipeline. The water generated by the water softening device during the operation of the softening function can be introduced into the washing chamber by a similar method, which is not described herein.
In some embodiments, water resources can be further saved by adding a regeneration water tank. Specifically, the water outlet of the water softening device can be respectively connected with the washing cavity of the dish washing machine and the water inlet of the regeneration water tank through devices such as a three-way valve, namely, under some working states, the three-way valve is communicated with the water outlet of the water softening device and the washing cavity of the dish washing machine, and under other working states, the three-way valve is communicated with the water outlet of the water softening device and the water inlet of the regeneration water tank.
The water outlet of the regeneration water tank and the washing cavity can be controlled to be in a conducting state through a switch valve.
And, in combination with the function of storing regenerated water in the regeneration tank, the regeneration time of the water softener may have more freedom, for example, in the middle of the dishwasher washing process, the water softener may also operate the regeneration function and store regenerated hard water in the regeneration tank.
And, the water softening installation can be designed great than the water outlet flow of regeneration water tank to regeneration water tank's water outlet flow can realize that it is long when the intaking of shorter dish washer, thereby is favorable to shortening whole time of washing dishes.
Fig. 1(a) is a flowchart of a control method of a dishwasher according to an exemplary embodiment of the present application. Please refer to fig. 1(a), and if necessary, refer to fig. 1(b), fig. 1(c) and fig. 2. Wherein, the same reference numerals are used for the same method steps in fig. 1(a), fig. 1(b), fig. 1(c) and fig. 2. In some embodiments, the control method of the dishwasher may include the following steps S11 and S12 before step S101:
in step S11, the water softener is activated to operate the regeneration function.
In step S12, it is determined whether the washing phase to be run requires heating.
In step S11, the water generated by activating the water softening device to operate the regeneration function may directly enter the dish washing chamber of the dishwasher in different application scenarios, or be supplemented into the regeneration water tank, or be discharged through the drainage pipeline.
After activating the water softening device to operate the regeneration function, the dishwasher may determine whether the washing phase to be operated requires heating. In particular, it may be determined by determining a washing stage in which the dishwasher is to be operated as a pre-wash stage, a main wash stage, a cold water rinse stage or a hot water rinse stage.
For example, please refer to fig. 2, which illustrates an example of determining whether the washing stage to be operated is a pre-washing stage. Step S12 may specifically include step S121. In step S121, it is determined whether the washing stage to be operated is a pre-washing stage.
Of course, in other embodiments, the step S11 may also be executed after the step S12, which is not limited in this application and may be set according to a specific application environment.
Further, after step S101, the control method may include step S103.
In step S103, it is determined whether the amount of water in the washing chamber reaches the rated amount of water.
Before step S103, the control method further includes: detecting the amount of water in the washing chamber.
Specifically, a water quantity detection device can be arranged in the washing cavity to detect the water quantity in the washing cavity in real time or detect the water quantity in the washing cavity at intervals of a preset time period. The water inlet of the dish washing cavity is also provided with a water inlet detection device, the water quantity entering the washing cavity at the current water inlet stage is detected in real time or the water quantity entering the washing cavity at the current water inlet stage is detected at preset time intervals, and the water quantity entering the washing cavity is used as the water quantity in the washing cavity. Before each washing stage of the dishwasher, the washing chamber is first filled with the washing water required for the washing stage. The stage of injecting the washing water into the washing chamber can be understood here as a water inlet stage.
When it is determined in step S103 that the amount of water in the washing chamber reaches the rated amount of water, step S104 is performed. Otherwise, the water produced by the water softening device, which is controllable to operate the regeneration function, continues to flow into the washing chamber of the dishwasher.
In step S104, the dishwasher is controlled to start operating the washing function.
Continuing to refer to fig. 2, when it is determined that the water amount in the washing chamber reaches the rated water amount, step S1041 is executed: the pre-wash is started, i.e. the dishwasher is controlled to enter a first washing phase. Otherwise, the water produced by the water softening device, which is controllable to operate the regeneration function, continues to flow into the washing chamber of the dishwasher.
It should be noted that, when the water amount in the washing chamber reaches the rated water amount, the step S104 is executed, and the pipeline between the water outlet of the water softening device and the washing chamber may be closed. Furthermore, the regeneration function of the water softening device can be switched off for the completion of the operation of the regeneration function. And if the regeneration function is not completed, a pipeline between the water outlet of the water softening device and the drainage pipeline can be opened, and water generated by the continuous operation of the water softening device and the regeneration function is drained through the drainage pipeline. Of course, the water outlet of the water softening device can be communicated with the water inlet of the regeneration water tank by controlling the three-way valve, and water generated by the continuous operation of the water softening device and the regeneration function flows into the regeneration water tank.
Further, referring to fig. 1(b), in some embodiments, after step S102, the control method includes step S105: it is determined whether the hardness value of the water produced by the water softening device operating the regeneration function at the present time is less than a first hardness threshold value.
The present embodiment determines whether the regeneration function of the water softening device has been completed by the hardness value of water. When the hardness value of the water produced by the water softening device for operating the regeneration function is less than the first hardness threshold value, the regeneration function of the water softening device is completed, and the softening capacity of the water softening device is restored to be completed. In some embodiments, the first hardness threshold is in the range of 0 to 11 dh. The specific value of the first hardness threshold may be set according to specific dishwasher product requirements, etc., and the present application is not limited thereto. In addition, in some embodiments, the hardness values of the water to which the present application relates are all based on the current German standard for water hardness.
Accordingly, before step S105, the control method may include: and acquiring the hardness value of the regenerated water generated by the water softening device which operates the regeneration function at the current moment.
Specifically, a total soluble solid matter value detector can be arranged at the water outlet of the water softening device to detect the total soluble solid matter value of the regenerated water generated at the water outlet of the water softening device at the current moment in real time. And calculating a hardness value corresponding to the detected total soluble solid matter value of the reclaimed water according to the conversion relation between the total soluble solid matter value and the hardness value.
Of course, a conductivity meter can be arranged at the water outlet of the water softening device to detect the conductivity value of the regenerated water generated at the water outlet of the water softening device at the current moment in real time. And calculating the hardness value corresponding to the conductivity value of the detected reclaimed water according to the conversion relation between the conductivity value and the hardness value.
Further, when it is determined in step S105 that the hardness value of the regeneration water is less than the first hardness threshold, the water softening device is controlled to perform step S106. Otherwise, the water softening device may be controlled to continue to operate the regeneration function. The regenerated water generated by the water softening device after continuously operating the regeneration function can be continuously discharged or flows into the regenerated water tank through the water discharge pipeline.
In step S106, the water softening device is controlled to end the operation of the regeneration function, i.e., to stop the operation of the regeneration function of the water softening device.
After the regeneration function of the water softening device is finished, step S107 of switching the water softening device to the operation softening function may also be performed.
And, the water produced by the water softening device operating the softening function can be controlled to flow into the washing chamber for the second washing phase.
Further, referring to fig. 1(c), in other embodiments, after step S102, the control method may include step S110: it is determined whether a hardness change value of water produced by the water softening device operating the regeneration function is less than a hardness change threshold value.
The present embodiment determines whether the regeneration function of the water softening device has been completed or not by the hardness change value of water. When the hardness change value of the water generated by the water softening device operating the regeneration function is smaller than the hardness change threshold value, it can be understood that the hardness change of the hardened water generated by the water softening device in the subsequent regeneration process is extremely small, the regeneration function of the water softening device is completed, and the softening capability of the water softening device is restored to be completed. The hardness change threshold may be set according to specific situations, and the application is not limited thereto.
Accordingly, before step S110, the control method may include: and acquiring the hardness change value of the water generated at the water outlet of the water softening device with the regeneration function in unit time.
This may be determined based on a ratio of a hardness change value to the interval period of time set in advance. The interval duration may be 1s, 3s, 5s, 8s, 10s, 12s, 15s … …, etc. The interval duration can be set according to specific conditions. Taking the interval duration as 10s as an example, the dishwasher obtains the hardness value of the water generated at the water outlet of the water softening device with the regeneration function once every 10 s. And taking the ratio of the difference value of the hardness values obtained at two adjacent times to the interval time length of 10s as the hardness change value of the water generated by the water softening device running the regeneration function. The above description is referred to for the manner of obtaining the hardness value of water, and details thereof are not repeated herein.
Further, when it is determined in step S110 that the hardness change value of the water produced by the water softening device operating the regeneration function per unit time length is less than the hardness change threshold value, step S106 is performed. Otherwise, the water softening device may be controlled to continue to operate the regeneration function. Also, water produced by the water softener continuing to operate the regeneration function may continue to drain or flow into the regeneration tank through the drain line.
Further, in some embodiments, the control method may further include: when the water softening device operates the softening function, whether the hardness value of water generated at the water outlet of the water softening device is larger than a second hardness threshold value is judged, if yes, the water softening device is determined to operate the regeneration function, and the water softening device is controlled to operate the regeneration function before the next washing stage after the washing stage corresponding to the operation softening function is started.
Specifically, in some embodiments, before step S11, the control method may include the following steps S1001 and S1002.
In step S1001, a hardness value of water generated at a water outlet of the water softening device when the water softening device operates a softening function is detected.
The hardness value of the water generated by the water softening device during the operation of the softening function can refer to the detection mode for detecting the hardness value of the water, for example, the total soluble solid matter value detector can be used for detecting the total soluble solid matter value of the water generated at the water outlet of the water softening device during the operation of the softening function, or the conductivity meter can be used for detecting the conductivity value of the water generated at the water outlet of the water softening device during the operation of the softening function. And determining the hardness value of the water generated when the water softening device operates the softening function according to the total soluble solid matter value or the conductivity value of the water. And will not be described in detail herein.
In step S1002, it is determined whether a water hardness value generated when the water softening device operates a softening function is greater than a second hardness threshold.
The embodiment determines whether the water produced by the water softening device operating the softening function can meet the washing requirement through the hardness value of the water. When the hardness value of the water generated by the water softening device operating the softening function is greater than the second hardness threshold value, it can be understood that the water generated by the water softening device operating the softening function cannot meet the washing requirement. Optionally, the second hardness threshold is in a range of 8dh to 11 dh. The specific value of the second hardness threshold may be set according to specific dishwasher product requirements, etc., and the application is not limited thereto.
When the hardness value of the water generated when the water softening device operates the softening function is determined to be greater than the second hardness threshold value, step S11 is executed before S1001, namely, the next washing stage after the washing stage corresponding to the softening function is executed, and the water softening device in the dishwasher is controlled to operate the regeneration function.
S1001 and S1002 running before step S11 are the same washing stage, for example, a main washing stage requiring heating of washing water; step S11 may be performed after the main washing stage is finished, and accordingly, in step S12(S121 or S122), the washing stage to be performed may be understood as a next washing stage after the washing stage corresponding to the above-described softening function, for example, a hot water rinsing stage.
It should be noted that, when it is determined that the hardness value of the water generated by the water softening device when the water softening device operates the softening function is less than or equal to the second hardness threshold, step S13 may be executed: and controlling the water softening device in the dishwasher to continue to operate the softening function before the rated water amount is not reached. The water produced by the water softening device operating the softening function will flow into the washing chamber of the dishwasher. Of course, the water softening device can stop the operation of the softening function when the water generated by the water softening device can meet the washing water required by the washing stage.
In addition, fig. 3 to 6 are respectively different control methods of a dishwasher according to exemplary embodiments of the present application. It should be noted that in the control method shown in fig. 3 to fig. 6, the same reference numerals are used for the same method steps as those in fig. 2, and the above-mentioned related description may be specifically referred to. The following mainly explains the differences.
The control method of the dishwasher shown in fig. 3, like the control method shown in fig. 2, takes as an example the determination of whether the washing stage to be operated is a pre-washing stage. In contrast, in the control method shown in fig. 2, step S105 is employed after step S102 to control continuation or termination of the regeneration function of the water softening device by determining whether the hardness value of water produced by the water softening device operating the regeneration function is less than the first hardness threshold value. In the control method shown in fig. 3, after step S102, step S110 is adopted to control the continuation or termination of the regeneration function of the water softening device by determining whether the hardness change value of the water produced by the operation of the regeneration function of the water softening device is less than the hardness change threshold value.
In the embodiment illustrated in fig. 2 and 3, the pre-washing stage of the dishwasher employs cold water washing, which is affected by the temperature of the washing water, the water generated by the operation of the water softening device and the regeneration function is used for washing, which has little influence on the scale, the water with relatively large hardness generated by the regeneration function can be used for washing, thereby avoiding the waste of water caused by the drainage pipeline, and enabling the dishwasher to achieve the purpose of saving water.
Unlike the control method shown in fig. 2, the control method of the dishwasher shown in fig. 4 specifically includes the step S121 of step S12 of fig. 2: it is determined whether the washing stage to be operated is a pre-washing stage, and in the control method shown in fig. 2, the start of the specific pre-washing function is indicated with step S1041 after step S103. Step S12 of fig. 4 specifically includes step S122: it is determined whether the washing stage to be operated is a main washing stage. Accordingly, when it is determined that the washing stage to be operated is not the main washing stage, the water generated from the water softening device operating the regeneration function is controlled to flow into the washing chamber of the dishwasher, and when it is determined that the washing stage to be operated is the main washing stage, the water generated from the water softening device operating the regeneration function is controlled to be discharged or flow into the regeneration tank through the drain line.
The method for controlling a dishwasher shown in fig. 5 is different from the method for controlling a dishwasher shown in fig. 2, except that it has the difference between fig. 4 and fig. 2, and includes the method for controlling the regeneration function of the water softening device to continue or end by determining whether the hardness change value of the water generated by the operation of the regeneration function of the water softening device is less than the hardness change threshold value by using step S110 after step S102, instead of using the method of step S105 to control the continuation or end of the regeneration function of the water softening device.
In the embodiment illustrated in fig. 4 and 5, the main washing stage of the dishwasher heats the washing water, affected by the temperature of the washing water, and the water softening device is used to operate the water with high hardness generated by the regeneration function to wash the water, so that the water with high hardness generated by the regeneration function is prevented from entering the dish washing cavity, the hard water generated by the regeneration function can be controlled to be discharged from the water discharge pipeline, thereby reducing the influence of the hard water on the generation of the scale in the hot water washing stage and improving the user experience. And other washing procedures, such as pre-washing and cold rinsing, can be carried out in a mode of not heating the washing water, so that the water with relatively high hardness generated by the regeneration function can be utilized for washing, the waste of the water caused by the drainage of the water from the drainage pipeline is avoided, and the purpose of saving the water quantity of the dishwasher is achieved.
The control method of the dishwasher shown in fig. 6 is different from the control method of the dishwasher shown in fig. 2 in that the control method of the dishwasher shown in fig. 6 further includes a step S1001 and a step S1002 before the step S11, and may further include a step S13 after the step S1002.
The method steps shown in fig. 3 to fig. 6 and denoted by the same reference numerals as fig. 2 (and fig. 1(a), fig. 1(b), and fig. 1(c)) can refer to the related descriptions, and are not repeated herein.
Although the present application has been described with reference to a preferred embodiment, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the application, and all changes, substitutions and alterations that fall within the spirit and scope of the application are to be understood as being covered by the following claims.
Claims (9)
1. A control method of a dishwasher is characterized in that the dishwasher comprises a water softening device, the water softening device comprises a plurality of first electrodes and a plurality of second electrodes which are stacked together, the first electrodes and the second electrodes are alternately arranged, and the polarities of the two electrodes are opposite; a channel for water to pass through is formed between the first electrode and the second electrode adjacent to the first electrode, an adsorption layer for adsorbing target cations is arranged on one side, facing the channel, of the first electrode, and the water softening device realizes switching between a softening function and a regeneration function by exchanging the polarity of the first electrode and the polarity of the second electrode; the control method of the dishwasher includes the steps of:
when the washing stage to be operated of the dishwasher is determined to be a first washing stage without heating washing water, controlling water generated by a water softening device for operating a regeneration function to flow into a washing cavity of the dishwasher or controlling water in a regeneration water tank to flow into the washing cavity of the dishwasher for the first washing stage; the regeneration water tank stores water generated by the water softening device running a regeneration function; when the water softening device operates a regeneration function, the first electrode is connected with positive electricity, and the second electrode is connected with negative electricity;
when the washing stage to be operated of the dishwasher is determined to be a second washing stage requiring heating of the washing water, the water generated by the water softening device controlling the operation of the regeneration function is discharged or flows into the regeneration water tank through a drain line; and after the water generated from the water softening device controlling the operation of the regeneration function is discharged through a drain line or flows into the regeneration tank, the method further includes:
acquiring the hardness value of water generated by a water softening device with a regeneration function operated at the current moment; and when the hardness value is smaller than the first hardness threshold value, controlling the water softening device to stop operating the regeneration function.
2. The control method according to claim 1, wherein the obtaining of the hardness value of the water produced by the water softening device operating the regeneration function at the present time comprises:
detecting the total soluble solid matter value of water generated at the water outlet of the water softening device with the regeneration function operated at the current moment; calculating a hardness value corresponding to the total soluble solid matter value of the water generated at the water outlet of the water softening device with the regeneration function according to the conversion relation between the total soluble solid matter value and the hardness value; or the like, or, alternatively,
detecting the conductivity value of water generated at the water outlet of the water softening device with the regeneration function operated at the current moment; and calculating the hardness value corresponding to the conductivity value of the water generated at the water outlet of the water softening device with the regeneration function according to the conversion relation between the conductivity value and the hardness value.
3. The control method of claim 1, wherein the first hardness threshold is in a range of 0 to 11 dh.
4. The control method as set forth in claim 1, wherein after controlling the water produced by the water softening device operating the regeneration function to be discharged or to flow into the regeneration tank through a drain line, the control method comprises:
acquiring a hardness change value of water generated at a water outlet of a water softening device with a regeneration function operating in unit time length;
and when the hardness change value in the unit time length is determined to be smaller than the hardness change threshold value, controlling the water softening device to stop operating the regeneration function.
5. The control method as claimed in any one of claims 1 to 4, wherein, after controlling the water generated from the water softening device operating the regeneration function to flow into the washing chamber of the dishwasher upon determining that the washing stage to be operated of the dishwasher is the first washing stage in which heating of the washing water is not required, the control method comprises:
detecting the amount of water in the washing chamber;
controlling the dishwasher to enter a first washing stage when the water quantity in the washing cavity is determined to reach the rated water quantity; otherwise, the water produced by the water softening device controlling the regeneration function continues to flow into the washing chamber of the dishwasher.
6. The control method according to any one of claims 1 to 4, wherein the first washing stage comprises a pre-washing stage or a cold water rinsing stage; the second washing stage includes a main washing stage or a hot water rinsing stage.
7. The control method according to claim 1, characterized by further comprising: when the water softening device operates the softening function, whether the hardness value of water generated at the water outlet of the water softening device is larger than a second hardness threshold value is judged, if yes, the water softening device is determined to operate the regeneration function, and the water softening device is controlled to operate the regeneration function before the next washing stage after the washing stage corresponding to the operation softening function is started.
8. The control method of claim 7, wherein the second hardness threshold is in a range of 8dh to 11 dh.
9. The control method as set forth in claim 1, wherein after controlling the water softening device to stop operating the regeneration function, the method further comprises:
switching the water softening device to an operational softening function;
controlling the water produced by the water softening device operating the softening function to flow into the washing chamber for the second washing phase.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010365510.4A CN111685679B (en) | 2020-04-30 | 2020-04-30 | Control method of dish washer |
| PCT/CN2021/088881 WO2021218759A1 (en) | 2020-04-30 | 2021-04-22 | Control method and control apparatus for dishwasher |
| EP21797871.7A EP4144278A4 (en) | 2020-04-30 | 2021-04-22 | Control method and control apparatus for dishwasher |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010365510.4A CN111685679B (en) | 2020-04-30 | 2020-04-30 | Control method of dish washer |
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| CN111685679A CN111685679A (en) | 2020-09-22 |
| CN111685679B true CN111685679B (en) | 2022-04-26 |
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| EP (1) | EP4144278A4 (en) |
| CN (1) | CN111685679B (en) |
| WO (1) | WO2021218759A1 (en) |
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| CN111685679B (en) * | 2020-04-30 | 2022-04-26 | 浙江三花智能控制股份有限公司 | Control method of dish washer |
| CN111685678A (en) * | 2020-04-30 | 2020-09-22 | 浙江三花智能控制股份有限公司 | Control method of dish washer |
| DE102020212182B3 (en) * | 2020-09-28 | 2022-01-05 | BSH Hausgeräte GmbH | Water-bearing household appliance and process |
| CN114271753B (en) * | 2021-12-17 | 2023-08-25 | 华帝股份有限公司 | Dishwasher washing method and dishwasher |
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Also Published As
| Publication number | Publication date |
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| EP4144278A1 (en) | 2023-03-08 |
| EP4144278A4 (en) | 2024-05-29 |
| WO2021218759A1 (en) | 2021-11-04 |
| CN111685679A (en) | 2020-09-22 |
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