EP2606804A1 - Control method for dish washer - Google Patents

Control method for dish washer Download PDF

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Publication number
EP2606804A1
EP2606804A1 EP12197734.2A EP12197734A EP2606804A1 EP 2606804 A1 EP2606804 A1 EP 2606804A1 EP 12197734 A EP12197734 A EP 12197734A EP 2606804 A1 EP2606804 A1 EP 2606804A1
Authority
EP
European Patent Office
Prior art keywords
air
heating
dishes
tub
control method
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.)
Withdrawn
Application number
EP12197734.2A
Other languages
German (de)
English (en)
French (fr)
Inventor
Jongmin Lee
Taehee Lee
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
LG Electronics Inc
Original Assignee
LG Electronics Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by LG Electronics Inc filed Critical LG Electronics Inc
Publication of EP2606804A1 publication Critical patent/EP2606804A1/en
Withdrawn legal-status Critical Current

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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
    • A47L15/0018—Controlling processes, i.e. processes to control the operation of the machine characterised by the purpose or target of the control
    • A47L15/0021—Regulation of operational steps within the washing processes, e.g. optimisation or improvement of operational steps depending from the detergent nature or from the condition of the crockery
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00—Washing or rinsing machines for crockery or tableware
    • A47L15/42—Details
    • A47L15/46—Devices for the automatic control of the different phases of cleaning ; Controlling devices
    • 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
    • A47L15/0034—Drying phases, including dripping-off 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
    • A47L15/48—Drying 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
    • A47L15/48—Drying arrangements
    • A47L15/488—Connections of the tub with the ambient air, e.g. air intake or venting 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
    • 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
    • A47L2501/06—Water heaters
    • 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
    • A47L2501/11—Air heaters
    • 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
    • A47L2501/12—Air blowers

Definitions

  • the document relates to a control method for a dish washer, and in particular to a control method for a dish washer capable of increasing energy efficiency, while temporally shortening a dish drying process by heating air in a tub.
  • a dish washer In general, a dish washer is referred to as a washing apparatus, which apparatus washes foreign materials such as slops attached to dishes by spraying washing water into an inside of a tub using a high pressure.
  • dish washer In order to increase washing efficiency, such dish washer is configured to perform heating washing water first and dissolving detergent in water more easily.
  • the dish washer is configured to be smoothly washed by soaking slops attached to dishes for a long time by washing water of a high temperature.
  • a washing cycle may be separated by a preliminary washing process, and a main washing process and a dish drying process.
  • the preliminary washing process the dish washing can be performed more reliably by soaking slops attached to dishes.
  • a sterilization process that irradiates the ultraviolet light to suppress growth of bacteria has been added.
  • the one of two methods may be a circulating drying method, in which the dishes in the tub is heated, the moisture is vaporized by evaporating the moisture from the dishes, the vaporized air in the tub is condensed by circulating it in the dish washer, and then the condensed water is discharged to the outside to dry the dishes.
  • the other one may be a discharge drying method, in which dry air is introduced into the tub from the outside of the dish washer, the steam vaporized from the dishes heated such as the circulating drying method is included in the dry air and then, humid air containing the moisture is discharged to the outside to dry the dishes.
  • the circulating drying method has a problem with efficiency lower than the discharge drying method in terms of performance of the dishes.
  • the discharge drying method is configured such that the washing water within the sump is typically heated up to a predetermined temperature in a rinsing process that rinses the washed dishes after the main washing process and the dish temperature in the tub is increased, in order to induce the evaporation of water. Accordingly, since the dish drying process is longer by a predetermined heating time of the washing water, and in heating at least the washing water, the washing water is heated up to a temperature suitable for washing the dishes and improvable for the dryness performance as described above, there is a severe problem of energy consumption.
  • the present invention has been made in an effort to provide a control method for a dish washer capable of increasing energy efficiency during a dish drying process, while shortening a dish drying time and improving entire drying performance.
  • a control method for a dish washer may include air-heating for heating air in a tub after a main washing process of washing dishes in the tub, and air-discharging for discharging the air containing a moisture in the tub into an outside, during the air-heating or at the same time as the air-heating.
  • control method may include further pre-heating for heating washing water accommodated in a sump to increase a temperature of the dishes, after the main washing process and before the air-heating.
  • the temperature (a first set temperature) of the dishes increased through the air heated in the air-heating may be higher than that (a second set temperature) of the dishes increased in the pre-heating.
  • a control method for a dish washer according to the present invention may include a preliminary washing process, after heating washing water accommodated in a sump by a washing water heater, for soaking slops attached to dishes by spraying heated washing water onto dishes in a tub, a main washing process for spraying the washing water onto the dishes having soaked slops using a high pressure after the preliminary washing process, and a dish drying process for drying the dishes in the tub after the main washing process, wherein the dish drying process includes air-heating for heating air in the tub, and air-discharging for discharging the air containing a moisture in the tub into an outside, after the air-heating.
  • the air-heating may increase a temperature of the dishes using an air heating heater installed in the tub.
  • the air-heating may heat the air such that the temperature of the dishes is increased up to a first set temperature.
  • the dish drying process may further include pre-heating for heating the washing water accommodated in the sump such that the temperature of the dishes is increased up to a second set temperature, after the main washing process and before the air-heating.
  • the first set temperature may be higher than the second set temperature.
  • the air-discharging may discharge the air in the tub containing water vapor into the outside by driving an exhaust fan.
  • the air heating heater may be disposed on a location where the dishes in the tub can be heated for heat radiation.
  • FIG. 1 is a side cross-sectional view illustrating a dish washer to which a control method for a dish washer according to an exemplary embodiment of the present invention is applied.
  • the dish washer to which the control method for the dish washer according to an exemplary embodiment of the present invention is applied may include a cabinet 10 forming an appearance, a door 100 for opening and closing an opening portion formed in the cabinet 10 , a tub 200 formed in an inside of the cabinet 10 to store dishes and forming a receiving space for washing the dishes through a washing process, and a sump assembly 400 including various parts coupled to a lower side of the tub 200 to store washing water, to spray the washing water onto the dishes and to dry the dishes, as shown in FIG. 1 .
  • a washing chamber 210 for accommodating the dishes is provided in an inside of the tub 200, and the washing chamber 210 is provided with a plurality of racks 220 to place the dishes.
  • the rack 220 may include an upper rack 222 installed on an upper side of the washing chamber 210 and a lower rack 224 installed on a lower side of the washing chamber 210.
  • the dishes are washed by spraying the washing water through a spray arm 230 in a state where the dishes are received in the rack 220.
  • the spray arm 230 is made of an upper arm 232 disposed on a lower side of the upper rack 222 and a lower arm 234 disposed on a lower side of the lower rack 224. Each of the upper arm 232 and the lower arm 234 is rotatably installed, and the spray arm 230 is provided with a plurality of spray nozzles to spray the washing water onto the dishes.
  • the sump assembly 400 is connected to the upper arm 232 and the lower arm 234 by a connection pipe 300.
  • the sump assembly 400 may store the washing water and supply the washing water selectively or simultaneously to the upper arm 232 and the lower arm 234 through the connection pipe 300.
  • the sump assembly 400 may include a sump to store the washing water supplied through a water supply pipe 500 connected to an external water source, a drain chamber (not shown) inserted with a drain filter (not shown) that filters foreign materials from the washing water drained after washing the dishes, a drain pump (not shown) draining the washing water and the like. If washing of the dishes is finished, the washing water is pumped by the drain pump and drained to an outside of the dish washer through a drain pipe 600.
  • the sump assembly 400 in order to increase an efficiency of washing of the dishes, it may further include a sump heater to increase a temperature of the washing water by directly applying heat to the washing water.
  • the sump heater can increase the washing water included in the sump assembly 400 up to a temperature suitable for washing the dishes.
  • a temperature of the washing water is higher, it is suitable for soaking slops attached to dishes for a long time and difficult to remove it.
  • the high temperature of the washing water is not necessary, but there is needed to be increased up to a temperature with an appropriate level by considering durability for heat of parts that makes up the sump assembly 400.
  • one side of the cabinet 10 is provided with an internal air discharging unit (not numeral undeclared) to discharge air in the tub 200 into the outside, such that the outside of the dish washer 1 and the inside of the washing chamber 210 are communicated with each other.
  • the internal air discharging unit may be provided such that the air is discharged to the outside of the cabinet 10 by driving an exhaust fan (not shown).
  • the dish washer 1 to which the control method for the dish washer according to an exemplary embodiment of the present invention is applied may include air heating heaters 700A and 700B that is disposed on at least any one portion of the inside of the washing chamber 210 to heat the internal air of the washing chamber 210, as shown in FIG. 1 .
  • the air heating heaters 700A and 700B may disposed on a middle part of any one wall side of the left and right of the washing chamber 210, as shown in FIG. 1 , in order to heat for heat radiation of dishes received in the upper rack 222 and the lower rack 224. However, it is not necessary to be disposed on a location where the air heating heaters 700A and 700B can be heated for heat radiation of the dishes. Accordingly, the air heating heaters 700A and 700B may disposed on a proper location suitable to be increased up to a predetermined temperature that can increase the temperature of the dishes by the convection phenomena in the washing chamber 210 of the heated air by considering caloric values of the air heating heaters 700A and 700B and the air flow by driving an exhaust fan in the tub 200.
  • an upper air heater 700a may be provided on a location corresponding to an upper one side of the upper rack 222
  • a lower air heater 700B may be provided on a middle part between the upper rack 222 and the lower rack 224, that is, a location corresponding to an upper one side of the lower rack 224.
  • the sump heater heats the washing water to a temperature suitable to wash for the dishes, and then the washing water of the high temperature is sprayed onto the dishes through the upper arm 232 or/and the lower arm 234.
  • the washing water sprayed through the upper arm 232 or/and the lower arm 234 is preferably sprayed onto the dishes with a high pressure (Hereinafter, a process spraying with the high pressure using the upper arm 232 or/and the lower arm 234 is referred to as 'main washing process' S200).
  • a preliminary washing process S100 may be performed that sprays the washing water of the high temperature onto the dishes with a low pressure in order to appropriately soak slops attached to the dishes for a long time and difficult to remove it by spraying the washing water once.
  • FIG. 2 is a graph illustrating an operation effect of a control method for the dish washer according to the present invention
  • FIG. 3 is a flow chart illustrating a control method for a dish washer according to the present invention.
  • the control method may include air-heating S410 for heating air in a tub, and air-discharging S420 for discharging the air containing a moisture in the tub into an outside, during the air-heating.
  • the main washing process S200 is referred to as a process spraying the washing water onto the dishes with the high pressure using the upper arm 232 or/and the lower arm 234, and before the main washing process S200, after the washing water accommodated in the sump is heated by the sump heater, a preliminary washing process S100 may be performed that sprays the heated washing water onto the dishes in the tub 200 and soaks slops attached to the dishes, as described above.
  • the rinsing process S300 may be performed as described above.
  • the above-mentioned air-heating S410 and air-discharging S420 performed after the main washing process S200 are processes that perform for the drying of the dishes. Accordingly, hereinafter, they are collectively referred to as "dish drying process S400.”
  • the air heating S410 in the dish drying process S400 is a step of heating air in the tub 200 using the air heating heaters 700A and 700B disposed in the washing chamber 210 of the tub 200.
  • the air in the washing chamber 210 is heated that means the dryness of the air is increased instantaneously, and may contain more moisture than air of the high temperature. They are already a well-known.
  • Reasons to heat the air in the washing chamber 210 through the air heating S410 are to increase the temperature of the dishes and to vaporize the remaining moisture in the dishes by directly heating the air and to increase content of the moisture that may be contained in the air by indirectly increasing the dryness of the air.
  • a method of increasing the temperature of the dishes is not limited to the above-mentioned air-heating S410. That is, it is possible to increase an entire internal temperature of the washing chamber 210 by heating the washing water accommodated in the sump using the sump heater before the air heating S410 or at the same time as the air heating S410. For the convenience of description, it is referred to as "pre-heating S430.”
  • the temperature of washing water heated by the pre-heating S430 is preferably set to at least proper temperature for washing the dishes (that is, the main washing process S200).
  • the temperature of the dishes can be increased under a discharge type drying way tub 200 that dries the dishes by discharging the air containing a moisture in the tub into an outside. Accordingly, the temperature of the dishes has been increased through only the above-mentioned pre-heating S430.
  • energy consumption is extreme since water that has relatively large specific heat is to be heated, and a temperature has to be set to satisfy the conditions for improving the drying performance of the dishes, rather than the heating temperature of the washing water or at least optimum temperature for washing the dishes. Accordingly, there is a problem in that execution time in the overall dish drying process is long, since the heating time of the washing water is long and the heating temperature of the washing water is increased.
  • the air in the washing chamber 210 that has a specific heat that is relatively small and can be heated in a shot time is directly heated by air heating S410.
  • the temperature of the dishes can be quickly increased, the moisture can be vaporized, and the air containing the moisture can be discharged to the outside through the discharge type drying way, by setting locations of the air heating heaters 700A and 700B such that the air is heated and the dishes are heated for heat radiation.
  • the dishes heated by the air heating S410 is increased up to at least the first set temperature that is added by a predetermined temperature from the increasing temperature (second set temperature) by heating the washing water of the sump heater.
  • the air-discharging S420 is a step of discharging the air in the tub 200 containing water vapor into the outside by driving an exhaust fan.
  • the discharging drying way having the higher drying performance is adopted, rather than the circulating drying method of the dish drying methods in the prior art, there is an advantage in that time required for the dish drying process can be greatly reduced, since the moisture contained in the dishes can be vaporized while increasing the temperature of the dishes in a shorter time, and the dryness of the air can be increased.
  • control method for the dish washer according to the present invention has the effect that can reduce energy consumption, compared to the increasing temperature of the dishes using the washing water, by quickly increasing the temperature of the dishes by heating air in the tub during the dish drying process.
  • control method for the dish washer according to the present invention has the effect in that time required for the dish drying process can be reduced and the dish drying can be quickly achieved, since the air in the tub is heated and the temperature of dishes is quickly increased.

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  • Washing And Drying Of Tableware (AREA)
  • Drying Of Solid Materials (AREA)
EP12197734.2A 2011-12-19 2012-12-18 Control method for dish washer Withdrawn EP2606804A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020110137518A KR20130070276A (ko) 2011-12-19 2011-12-19 식기 세척기의 제어방법

Publications (1)

Publication Number Publication Date
EP2606804A1 true EP2606804A1 (en) 2013-06-26

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP12197734.2A Withdrawn EP2606804A1 (en) 2011-12-19 2012-12-18 Control method for dish washer

Country Status (7)

Country Link
US (1) US20130152974A1 (ru)
EP (1) EP2606804A1 (ru)
KR (1) KR20130070276A (ru)
CN (1) CN103156564A (ru)
AU (1) AU2012265573B2 (ru)
BR (1) BR102012032335A2 (ru)
RU (1) RU2541282C2 (ru)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017119605A1 (en) * 2016-01-05 2017-07-13 Lg Electronics Inc. Dishwasher and controlling method thereof

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106725191A (zh) * 2017-01-17 2017-05-31 陕西理工学院 一种应用于洗碗机的清洗装置
TWI629038B (zh) * 2017-03-27 2018-07-11 台灣櫻花股份有限公司 烘碗機
KR20210138422A (ko) * 2020-05-12 2021-11-19 엘지전자 주식회사 식기세척기
CN113786150B (zh) * 2021-07-05 2023-02-28 良基（厦门）自动化设备有限公司 一种洗碗机加热烘干机构
CN113633237A (zh) * 2021-08-05 2021-11-12 珠海格力电器股份有限公司 一种洗碗机及其控制方法、装置、存储介质

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US3635229A (en) * 1970-05-19 1972-01-18 Gen Motors Corp Selective heating system for automatic washing machine
DE2232119A1 (de) * 1972-06-30 1974-01-17 Licentia Gmbh Geschirrspuelmaschine
EP1721559A1 (en) * 2005-05-10 2006-11-15 Electrolux Home Products Corporation N.V. Dish-washing machine
WO2009008828A1 (en) * 2007-07-09 2009-01-15 Asko Cylinda Ab Dish washer provided with a drying system
DE102009031433A1 (de) * 2009-07-01 2011-01-05 Henkel Ag & Co. Kgaa Verfahren zum Betrieb einer automatischen Geschirrspülmaschine

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KR20060124260A (ko) * 2005-05-31 2006-12-05 엘지전자 주식회사 식기세척기 및 식기세척기의 제어방법
JP2007181518A (ja) * 2006-01-05 2007-07-19 Hitachi Appliances Inc 食器洗浄機
JP2007202828A (ja) * 2006-02-02 2007-08-16 Toto Ltd 食器洗浄機
KR20080088122A (ko) * 2007-03-28 2008-10-02 삼성전자주식회사 식기세척기 및 그 제어방법
KR101356512B1 (ko) * 2007-08-31 2014-01-29 엘지전자 주식회사 식기세척기
EP2181636B1 (en) * 2008-10-31 2016-08-31 Electrolux Home Products Corporation N.V. Method for operating a dishwasher
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3635229A (en) * 1970-05-19 1972-01-18 Gen Motors Corp Selective heating system for automatic washing machine
DE2232119A1 (de) * 1972-06-30 1974-01-17 Licentia Gmbh Geschirrspuelmaschine
EP1721559A1 (en) * 2005-05-10 2006-11-15 Electrolux Home Products Corporation N.V. Dish-washing machine
WO2009008828A1 (en) * 2007-07-09 2009-01-15 Asko Cylinda Ab Dish washer provided with a drying system
DE102009031433A1 (de) * 2009-07-01 2011-01-05 Henkel Ag & Co. Kgaa Verfahren zum Betrieb einer automatischen Geschirrspülmaschine

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017119605A1 (en) * 2016-01-05 2017-07-13 Lg Electronics Inc. Dishwasher and controlling method thereof
AU2016385274B2 (en) * 2016-01-05 2019-05-16 Lg Electronics Inc. Dishwasher and controlling method thereof

Also Published As

Publication number Publication date
KR20130070276A (ko) 2013-06-27
AU2012265573A1 (en) 2013-07-04
BR102012032335A2 (pt) 2015-04-14
RU2012154954A (ru) 2014-06-27
US20130152974A1 (en) 2013-06-20
CN103156564A (zh) 2013-06-19
AU2012265573B2 (en) 2015-01-29
RU2541282C2 (ru) 2015-02-10

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