EP2989958B1 - Procédé de commande de lave-vaisselle - Google Patents

Procédé de commande de lave-vaisselle Download PDF

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Publication number
EP2989958B1
EP2989958B1 EP15182066.9A EP15182066A EP2989958B1 EP 2989958 B1 EP2989958 B1 EP 2989958B1 EP 15182066 A EP15182066 A EP 15182066A EP 2989958 B1 EP2989958 B1 EP 2989958B1
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EP
European Patent Office
Prior art keywords
sump
water
filter
module
filter assembly
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP15182066.9A
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German (de)
English (en)
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EP2989958A1 (fr
Inventor
Jongmin Lee
Sungho Kim
Jaechul Lee
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LG Electronics Inc
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LG Electronics Inc
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Filing date
Publication date
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Publication of EP2989958A1 publication Critical patent/EP2989958A1/fr
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Publication of EP2989958B1 publication Critical patent/EP2989958B1/fr
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Classifications

    • 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
    • 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
    • A47L15/4202—Water filter means or strainers
    • A47L15/4208—Arrangements to prevent clogging of the filters, e.g. self-cleaning
    • 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
    • A47L15/0039—Filter cleaning phases
    • 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
    • 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
    • A47L15/4234—Steam generating 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
    • A47L15/46—Devices for the automatic control of the different phases of cleaning ; Controlling devices
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D7/00—Compositions of detergents based essentially on non-surface-active compounds
    • 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
    • A47L2401/22—Number of operational cycles

Definitions

  • the present disclosure relates to a control method of a dishwasher.
  • a dishwasher is an electric home appliance that sprays high-pressure wash water onto dishes through a spray nozzle to remove food waste from the surfaces of the dishes.
  • a conventional dishwasher includes a tub having a washing space defined therein and a sump mounted at the bottom of the tub to store wash water.
  • the wash water in the sump is moved to the spray nozzle by a pumping action of a washing pump mounted in the sump.
  • the wash water moved to the spray nozzle is sprayed at a high pressure through a spray port formed in the end of the spray nozzle.
  • the wash water sprayed at the high pressure strikes the surfaces of the dishes. As a result, garbage, such as food waste, is separated from the dishes, and then falls to the bottom of the tub.
  • a filter is disposed between the sump and the tub to filter foreign matter from the wash water.
  • An example of a conventional dishwasher is disclosed, for example, in Korean Registered Patent No. 10-1235952 .
  • EP2510864A1 discloses a dishwasher including a sump and a heater for heating wash water stored in the sump to generate steam for cleaning dishes and/or a filter of the dishwasher.
  • KR20130070275A discloses a dishwasher and a control method for a dishwasher including generating steam using a sump heater and supplying the steam into a tub and a filter mounting portion of the dishwasher.
  • the present disclosure has been made in view of the above problems, and the present disclosure provides a dishwasher that is capable of automatically cleaning a filter assembly.
  • the present disclosure provides a dishwasher that is capable of minimizing the amount of foreign matter attached to a filter assembly, thereby provide consistent washing force.
  • the present disclosure provides a dishwasher that is capable of sterilizing or deodorizing a filter assembly or removing foreign matter from the filter assembly before a washing cycle, thereby preventing contamination in the washing cycle.
  • the present disclosure provides a dishwasher that is capable of supplying an organic acid into a tub during sterilization or deodorization of a filter assembly or removal of foreign matter from the filter assembly using steam, thereby removing scale attached to the inside of the tub and restraining scale from being formed in the tub.
  • a control method of a dishwasher including supplying steam generated in a sump to a filter assembly to self-clean the filter assembly at the time of operating the dishwasher (a pre-filter cleaning cycle), wherein the pre-filter cleaning cycle includes driving a water supply module to supply wash water to the sump before operating the dishwasher (a pre-operation water supply step), driving a heater module to generate steam in the sump and supplying the generated steam to the filter assembly to clean the filter assembly (a pre-cleaning steam generation and supply step) after the pre-operation water supply step, and driving a drainage module to drain the wash water (a pre-cleaning drainage step) after the pre-cleaning steam generation and supply step.
  • the control method further includes driving the drainage module to drain the wash water stored in the sump (a pre-operation drainage step) before the pre-filter cleaning cycle.
  • the pre-filter cleaning cycle may be performed periodically.
  • the control method may further include supplying an organic acid into a tub through an organic acid module (an organic acid supply step) at a time of at least one selected from among before the pre-operation water supply step, after the pre-operation water supply step, and during the pre-operation water supply step.
  • an organic acid supply step an organic acid supply step
  • the control method may further include determining the number of times that dishes have been washed (i.e. the number of washing cycles) before the pre-operation water supply step.
  • the control method may further include washing dishes (a washing cycle) after the pre-cleaning drainage step.
  • the control method may further include supplying the steam generated in the sump to the filter assembly to self-clean the filter assembly before finishing the operation of the dishwasher (a post-filter cleaning cycle), wherein the post-filter cleaning cycle may include driving the water supply module to supply new wash water to the sump (a post-cleaning water supply step), driving the heater module to generate steam in the sump and supplying the generated steam to the filter assembly to clean the filter assembly (a post-cleaning steam generation and supply step) after the post-cleaning water supply step, and driving the drainage module to drain the wash water (a post-cleaning drainage step) after the post-cleaning steam generation and supply step.
  • the post-filter cleaning cycle may include driving the water supply module to supply new wash water to the sump (a post-cleaning water supply step), driving the heater module to generate steam in the sump and supplying the generated steam to the filter assembly to clean the filter assembly (a post-cleaning steam generation and supply step) after the post-cleaning water supply step, and driving the drainage module to drain the wash water (a post-cleaning drainage step
  • the post-filter cleaning cycle may be performed periodically.
  • the control method may further include supplying an organic acid into a tub through an organic acid module (an organic acid supply step) at a time of at least one selected from among before the post-cleaning water supply step, after the post-cleaning water supply step, and during the post-cleaning water supply step.
  • an organic acid supply step an organic acid supply step
  • FIG. 1 is a front sectional view schematically showing a dishwasher according to a first embodiment
  • FIG. 2 is a front sectional view of a filter and a sump shown in FIG. 1 .
  • the dishwasher includes a cabinet assembly 10 that defines the external appearance of the dishwasher, a rack 20 disposed in the cabinet assembly 10 to receive dishes, a spray module 30 disposed in the cabinet assembly 10 to spray wash water to the dishes, a sump 40 disposed in the cabinet assembly 10 to supply wash water to the spray module 30, a water supply module 50 configured to supply wash water to the sump 40 or the spray module 30, a drainage module 60 connected to the sump 40 to discharge wash water stored in the sump out of the dishwasher, a filter assembly 70 mounted in the sump 40 to filter the wash water, and a heater module 90 mounted in the sump 40 to heat the wash water.
  • the cabinet assembly 10 defines the external appearance of the dishwasher.
  • the cabinet assembly 10 includes a cabinet 12, a door 14 coupled to the cabinet 12 to open and close the cabinet 12, and a tub 16 mounted in the cabinet 12 such that the tub 16 contacts wash water or steam.
  • the cabinet 12 is open at the front thereof.
  • the door 14 is mounted at the open front of the cabinet 12.
  • the tub 16 is disposed in the cabinet 12.
  • the tub 16 is also open at the front thereof. When the door 14 is closed, the door 14 closes the open front of the tub 16.
  • the door 14 prevents wash water or steam from leaking out of the tub 16.
  • the rack 20 is mounted in the tub 16. Dishes are received in the rack 20.
  • the spray module 30 sprays wash water to the dishes.
  • the spray module 30 includes spray nozzles 32 and nozzle channels 34 configured to supply wash water to the spray nozzles 32.
  • three spray nozzles 32 are provided.
  • three nozzle channels 34 are also provided such that the nozzle channels 34 correspond to the respective spray nozzles 32.
  • a nozzle channel switching unit 36 is provided to selectively supply wash water to at least one of the nozzle channels 34.
  • the spray module 30 is configured to receive wash water from the sump 40, which stores wash water, and to spray the received wash water. Unlike this embodiment, water may be directly supplied to the spray module 30 through the water supply module 50.
  • the water supply module 50 receives water from the outside and supplies the received water to the sump 40.
  • water from the water supply module 50 is supplied to the sump 40 via the filter assembly 70.
  • the drainage module 60 discharges wash water stored in the sump 40 out of the dishwasher.
  • the drainage module 60 includes a drainage channel 62 and a drainage pump 64.
  • the filter assembly 70 filters foreign matter, such as food waste, from wash water.
  • the filter assembly 70 is disposed in a wash water flow channel along which wash water flows from the tub 16 to the sump 40.
  • the sump 40 is provided with a filter installation portion 42, at which the filter assembly 70 is installed.
  • a filter channel 41 configured to connect the filter installation portion 42 to the interior of the sump 40 is disposed in the sump 40.
  • a sump storage unit 45 configured to store wash water is disposed in the sump 40.
  • a pump module 80 configured to feed wash water stored in the sump 40 to the spray module 30 is disposed in the sump 40.
  • the pump module 80 includes a pump motor 82 and an impeller 84 connected to the pump motor 82 such that the impeller 84 can be rotated by the pump motor 82. Wash water stored in the sump 40 is fed to the spray module 30 according to the rotation of the impeller 84.
  • the pump module 80 is configured to move wash water using the impeller 84. Unlike this embodiment, the pump module 80 may be configured variously.
  • the pump module 80 is connected to the spray module 30 via a pump channel 81.
  • the sump 40 is connected to a steam channel 43 and a steam nozzle 44.
  • the sump 40 sprays steam generated by the heater module 90 into the tub 16.
  • a valve configured to control steam may be mounted in the steam channel 43. Steam to be sprayed to the tub 16 may be controlled through the valve. According to the circumstances, the amount of steam to be sprayed may be adjusted by the valve.
  • the steam generated in the sump 40 may be supplied into the tub 16 through the filter channel 41 and the filter installation portion 42 instead of the steam nozzle 44.
  • the sump 40 may supply steam into the tub 16 in opposite directions.
  • the sump 40 may be connected to the tub 16 through the steam channel 43 and the filter channel 41 in opposite directions.
  • the filter assembly 70 includes an outer filter 72 mounted in the filter installation portion 42 of the sump 40 and an inner filter 74 mounted in the outer filter 72 such that the inner filter 74 can be separated from the outer filter 72.
  • the inner filter 74 filters large-sized particles of foreign matter from the wash water
  • the outer filter 72 filters small-sized particles of foreign matter from the wash water having passed through the inner filter 74.
  • the wash water filtered by the outer filter 72 may move to the sump storage unit 45 via the filter channel 41.
  • the performance of the outer filter 72 is appropriately maintained using control methods which will hereinafter be described.
  • the heater module 90 is mounted outside the sump 40.
  • the heater module 90 mounted outside the sump 40 does not contact wash water.
  • the heater module 90 heats wash water in the sump storage unit 45.
  • the heater module 90 may convert wash water in the sump storage unit 45 into steam using thermal conduction.
  • an organic acid supply module 100 configured to supply an organic acid harmless to humans into the tub 16, may be further mounted in the cabinet assembly 10.
  • the organic acid supplied by the organic acid supply module 100 may remove scale deposited in the tub 16.
  • the organic acid may sterilize the interior of the tub 16.
  • FIG. 3 is a flowchart showing a control method of a dishwasher according to a first embodiment.
  • the control method of the dishwasher according to this embodiment is performed when the dishwasher is initially driven.
  • the control method of the dishwasher includes a pre-operation drainage step (S10) of driving the drainage module 60 to perform drainage before operating the dishwasher, a pre-operation water supply step (S20) of driving the water supply module 50 to supply wash water to the sump 40 before operating the dishwasher, a pre-cleaning steam generation and supply step (S30) of driving the heater module 90 to generate steam in the sump 40 and supplying the generated steam to the filter assembly 70 to clean the filter assembly 70, and a pre-cleaning drainage step (S40) of driving the drainage module 60 to drain the wash water in the tub 16 after the pre-cleaning steam generation and supply step (S30).
  • a pre-operation drainage step (S10) of driving the drainage module 60 to perform drainage before operating the dishwasher includes a pre-operation water supply step (S20) of driving the water supply module 50 to supply wash water to the sump 40 before operating the dishwasher, a pre-cleaning steam generation and supply step (S30) of driving the heater module 90 to generate steam in the sump 40 and supplying the generated steam to the filter assembly 70 to
  • the control method is performed to remove foreign matter from the filter assembly 70 before a washing cycle (S50) for washing dishes.
  • the control method is automatically performed even without manipulation on the part of a user. It is possible to remove foreign matter from the filter assembly 70 using the control method.
  • the pre-operation drainage step (S10) is performed to remove the contaminated water from the sump 40 or the drainage module 60.
  • the pre-operation drainage step (S10) is performed to drain the water stored in the tub 16, thus preventing the interior of the tub 16 from being contaminated again.
  • the pre-operation water supply step (S20) is a step of supplying clean water to generate steam.
  • wash water is supplied through the water supply module 50.
  • the wash water is stored in the sump 40 through the filter assembly 70.
  • the filter assembly 70 is wet by the wash water at the pre-operation water supply step (S20).
  • the pre-cleaning steam generation and supply step (S30) is a step of generating steam to clean the filter assembly 70.
  • the generated steam is supplied to the filter assembly 70.
  • the steam generated in the sump 40 may be supplied into the tub 16 in opposite directions, as described above. Foreign matter attached to the filter assembly 70 may be soaked in the steam flowing to the filter assembly 70. The soaked foreign matter may be easily removed from the outer filter 72.
  • the steam may be formed at high pressure.
  • the pressure of the steam flowing from the sump 40 to the filter assembly 70 may be high.
  • valve in the steam channel 43 may be closed such that a larger amount of steam can be supplied to the filter assembly 70 through the filter channel 41.
  • the steam generated in the sump 40 is supplied to the filter assembly 70 through the filter channel 41 along the shortest distance.
  • the loss of heat from the steam supplied through the filter channel 41 may be minimized.
  • the steam flows from the outside of the filter assembly 70 to the inside of the filter assembly 70.
  • the foreign matter separated from the filter assembly by the steam flowing from the outside of the filter assembly 70 to the inside of the filter assembly 70 is stored in the filter assembly 70.
  • the pre-cleaning drainage step (S40) the foreign matter separated from the outer filter 72 is discharged together with the wash water.
  • the pre-cleaning drainage step (S40) is performed to discharge the foreign matter separated from the outer filter 72, thus preventing the dishes from being contaminated again.
  • the washing cycle (S50) may be performed.
  • the foreign matter separated from the filter assembly 70 is discharged before the washing cycle (S50).
  • the washing cycle (S50) is a procedure for washing the dishes using various methods.
  • the washing cycle (S50) may include a series of processes, such as rinsing and drying.
  • the washing cycle (S50) is well known to those skilled in the art to which the present disclosure pertains, and therefore a detailed description thereof will be omitted.
  • Steps S20 to S40 according to this embodiment are steps of self-cleaning the filter assembly 70 during the initial operation of the dishwasher.
  • steps S20 to S40 are defined as a pre-filter cleaning cycle (ST10).
  • pre-filter cleaning cycle (ST10), about one liter of wash water is supplied.
  • steam is generated for about 10 minutes to separate foreign matter from the filter assembly 70.
  • pre-filter cleaning cycle (ST10) it is possible to prevent the outer filter 72 from being clogged due to foreign matter through self-cleaning.
  • the pre-filter cleaning cycle (ST10) may make it less troublesome for the user to clean the filter assembly 70.
  • a controller of the dishwasher may periodically perform the pre-filter cleaning cycle (ST10). That is, the controller of the dishwasher may count the number of washing cycles (C10), and may control the pre-filter cleaning cycle (ST10) to be performed every predetermined number of times.
  • the pre-filter cleaning cycle (ST10) is performed whenever the dishwasher is initially operated, and may be performed periodically in a predetermined manner.
  • the pre-filter cleaning cycle (ST10) also has the effect of pre-heating the interior of the tub 16 before the washing cycle (S50) even though the pre-filter cleaning cycle (ST10) is a cycle of removing foreign matter from the filter assembly 70.
  • the pre-filter cleaning cycle (ST10) is a cycle of removing foreign matter from the filter assembly 70.
  • the tub 16 is pre-heated in the pre-filter cleaning cycle (ST10), the effect of washing the dishes is improved.
  • the pre-filter cleaning cycle (ST10) also has the effect of sterilizing the filter assembly 70 since steam is supplied to the filter assembly 70 before the washing cycle (S50).
  • FIG. 4 is a flowchart showing a control method of a dishwasher according to a second embodiment.
  • the control method of the dishwasher according to this embodiment is similar to the control method of the dishwasher according to the first embodiment except that the filter assembly 70 is additionally self-cleaned after the washing cycle (S50) and before the operation of the dishwasher is finished.
  • control method of the dishwasher additionally includes a post-cleaning water supply step (S60) of supplying wash water to the sump 40 after the washing cycle (S50) is completed and before the operation of the dishwasher is finished, a post-cleaning steam generation and supply step (S70) of heating the supplied wash water to generate steam and supplying the generated steam to the filter assembly 70 to separate foreign matter from the filter assembly 70, and a post-cleaning drainage step (S80) of discharging the foreign matter separated from the filter assembly 70 together with wash water.
  • a post-cleaning water supply step (S60) of supplying wash water to the sump 40 after the washing cycle (S50) is completed and before the operation of the dishwasher is finished a post-cleaning steam generation and supply step (S70) of heating the supplied wash water to generate steam and supplying the generated steam to the filter assembly 70 to separate foreign matter from the filter assembly 70
  • a post-cleaning drainage step (S80) of discharging the foreign matter separated from the filter assembly 70 together with wash water.
  • Steps S60 to S80 are defined as a post-filter cleaning cycle (ST20).
  • both the pre-filter cleaning cycle (ST10) and the post-filter cleaning cycle (ST20) are performed.
  • the post-filter cleaning cycle (ST20) may be performed after the washing cycle (S50) without performing the pre-filter cleaning cycle (ST10).
  • FIG. 5 is a flowchart showing a control method of a dishwasher according to an example.
  • the control method of the dishwasher according to this example is performed in a case in which a specific course is selected in order to remove scale in the tub 16.
  • the control method of the dishwasher according to this example is similar to the control method of the dishwasher according to the first embodiment except that a scale removal cycle (ST30) of supplying an organic acid into the tub 16 to remove scale in the tub 16 is performed after the pre-cleaning steam generation and supply step (S30).
  • the control method of the dishwasher includes a pre-operation drainage step (S10) of driving the drainage module 60 to perform drainage before operating the dishwasher, a pre-operation water supply step (S20) of driving the water supply module 50 to supply wash water to the sump 40 before operating the dishwasher, a pre-cleaning steam generation and supply step (S30) of driving the heater module 90 to generate steam in the sump 40 and supplying the generated steam to the filter assembly 70 to clean the filter assembly 70, and a scale removal cycle (ST30) of supplying an organic acid into the tub 16 to remove scale in the tub 16 after the pre-cleaning steam generation and supply step (S30).
  • a pre-operation drainage step (S10) of driving the drainage module 60 to perform drainage before operating the dishwasher includes a pre-operation water supply step (S20) of driving the water supply module 50 to supply wash water to the sump 40 before operating the dishwasher, a pre-cleaning steam generation and supply step (S30) of driving the heater module 90 to generate steam in the sump 40 and supplying the generated steam to the filter assembly 70 to clean
  • the specific course may be a filter cleaning course or a filter sterilizing course.
  • the scale is formed from hard water.
  • Hard water is high-hardness water containing calcium ions and magnesium ions.
  • Ca 2 + and magnesium ions (Mg 2 +) contained in water are converted into calcium carbonate (CaCO 3 ), 1 mg/l corresponds to a hardness of 1.
  • Water having a hardness of 0 to 50 is soft water, water having a hardness of 50 to 100 is normal soft water, water having a hardness of 100 to 150 is slightly soft water, water having a hardness of 150 to 250 is normal hard water, and water having a hardness of more than 250 is hard water.
  • Hard water is generally found in limestone zones, inland basin lakes, and underground.
  • the organic acid reduces the scale.
  • the organic acid reduces the scale to calcium ions and magnesium ions, thus eliminating the scale.
  • the reducing process whereby the organic acid chemically react with the scale, is accelerated in a high temperature atmosphere.
  • the scale removal cycle (ST30) includes an organic acid supply step (S92) of supplying an organic acid into the tub 16, a rinsing step (S94) of supplying wash water into the tub 16 through the spray module 30, and a drying step (S96) of heating the interior of the tub 16 to dry the interior of the tub 16.
  • the organic acid reduces scale formed on the inside of the tub 16 into metal ions to remove the scale.
  • the supplied organic acid is circulated together with the wash water, and is then uniformly sprayed into the tub 16.
  • the user may select a specific course in order to remove scale and to clean the filter, and cleaning of the filter and removal of the scale may be simultaneously performed using the organic acid.
  • FIG. 6 is a flowchart showing a control method of a dishwasher according to a fourth embodiment.
  • an organic acid is supplied to remove scale from the tub 16 in the pre-filter cleaning cycle (ST10) of the first embodiment.
  • the control method of the dishwasher according to this embodiment may further include an organic acid supply step (S92) of supplying an organic acid into the tub 16 at a time of at least one selected from among before supplying wash water, after supplying wash water, and while supplying wash water in the pre-filter cleaning cycle (ST10).
  • the organic acid may be automatically supplied during self-cleaning. It is possible to restrain scale from being formed in the tub 16 by performing the organic acid supply step (S92).
  • FIG. 7 is a flowchart showing a control method of a dishwasher according to an example.
  • an organic acid is supplied to remove scale from the tub 16 in the post-filter cleaning cycle (ST20) of the second embodiment.
  • control method of the dishwasher according to this example may further include an organic acid supply step (S92) of supplying an organic acid into the tub 16 at a time of at least one selected from among before supplying wash water, after supplying wash water, and while supplying wash water in the post-filter cleaning cycle (ST20).
  • the organic acid may be automatically supplied during self-cleaning. It is possible to restrain scale from being formed in the tub 16 by performing the organic acid supply step (S92).
  • control method of the dishwasher according to the present disclosure has one or more of the following effects.
  • control method of the dishwasher according to the present disclosure has the effect of supplying steam to the filter assembly before or after the washing cycle (S50) of washing the dishes, whereby it is possible to self-clean the filter assembly.
  • control method of the dishwasher according to the present disclosure has the effect of supplying steam to the filter assembly, whereby it is possible to separate foreign matter firmly attached to the filter assembly by soaking.
  • control method of the dishwasher according to the present disclosure has the effect of discharging the foreign matter separated from the filter assembly before the washing cycle (S50), whereby it is possible to prevent the dishes from being contaminated again by the foreign matter.
  • control method of the dishwasher according to the present disclosure has the effect of performing at least one of the pre-filter cleaning cycle (ST10) of self-cleaning the filter assembly and the post-filter cleaning cycle (ST20) of self-cleaning the filter assembly, whereby it is possible to provide consistent washing force in the washing cycle.
  • control method of the dishwasher according to the present disclosure has the effect of sterilizing or deodorizing the filter assembly using steam supplied during the removal of the foreign matter.
  • control method of the dishwasher according to the present disclosure has the effect of preventing the dishes from being contaminated by bacteria or odors in the washing cycle through sterilization or deodorization of the filter assembly.
  • control method of the dishwasher according to the disclosure has the effect of supplying an organic acid into the tub during self-cleaning of the filter assembly, whereby it is possible to easily remove scale from the inside of the tub.

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  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Wood Science & Technology (AREA)
  • Organic Chemistry (AREA)
  • Washing And Drying Of Tableware (AREA)
  • Cleaning By Liquid Or Steam (AREA)

Claims (7)

  1. Procédé de contrôle du fonctionnement d'un lave-vaisselle comprenant un ensemble de filtrage (70) et un carter (40), le procédé comprenant les étapes suivantes, dans l'ordre :
    lorsque le lave-vaisselle est initialement mis en route,
    commande (S10) d'un module de drainage (60) pour éliminer l'eau contaminée du carter ;
    commande (S20) d'un module d'alimentation en eau (50) pour fournir de l'eau à le carter (40) ;
    commande (S30) d'un module de chauffage (90) pour générer de la vapeur dans le carter (40) ;
    alimentation de la vapeur générée à l'ensemble de filtrage (70) pour nettoyer l'ensemble de filtrage ; et
    commande (S40) du module de vidange (60) pour vidanger l'eau.
  2. Procédé selon la revendication 1, comprenant en outre l'étape d'alimentation (S92) d'un acide organique dans une cuve (16) à l'aide d'un module d'acide organique au moment où l'on exécute au moins une opération choisie dans le groupe comprenant :
    avant l'étape de commande (S20) du module d'alimentation en eau (50), fourniture d'eau au carter (40) ;
    après l'étape de commande (S20) du module d'alimentation en eau, fourniture d'eau au carter ; et
    pendant l'étape de commande (S20) du module d'alimentation en eau, fourniture d'eau au carter.
  3. Procédé selon la revendication 1 ou 2, comprenant en outre l'étape consistant à déterminer (C10) un nombre de fois que les plats ont été lavés avant l'étape de commande (S20) du module d'alimentation en eau (50) pour fournir de l'eau au carter (40).
  4. Procédé selon l'une quelconque des revendications précédentes, dans lequel le fonctionnement comprend en outre l'exécution d'un cycle de lavage (S50).
  5. Procédé selon la revendication 4, dans lequel le fonctionnement comprend les étapes suivantes, dans l'ordre :
    commande (S20) d'un module d'alimentation en eau (50) pour fournir de l'eau à un carter (40) ;
    commande (s30) d'un module de chauffage (90) pour générer de la vapeur dans le carter (40) ;
    alimentation de la vapeur générée à l'ensemble de filtrage (70) pour nettoyer l'ensemble de filtrage ; et
    commande (S40) du module de vidange (60) pour vidanger l'eau,
    exécutées après le cycle de lavage (S50).
  6. Procédé selon la revendication 4 ou 5 suivi de l'étape consistant à terminer le fonctionnement du lave-vaisselle.
  7. Procédé selon la revendication 2, comprenant en outre :
    la pulvérisation de l'eau stockée dans le carter (40) dans la cuve (16) à l'aide d'un module de pulvérisation (30) ; et
    le chauffage d'une partie interne de la cuve (16) pour sécher la partie interne de la cuve.
EP15182066.9A 2014-08-22 2015-08-21 Procédé de commande de lave-vaisselle Active EP2989958B1 (fr)

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KR102448861B1 (ko) * 2016-01-05 2022-09-30 엘지전자 주식회사 식기 세척기 및 식기 세척기의 제어방법
KR102411197B1 (ko) 2017-08-31 2022-06-17 엘지전자 주식회사 식기세척기
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CN105380584A (zh) 2016-03-09
KR20160023294A (ko) 2016-03-03
US20160051120A1 (en) 2016-02-25

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