WO2020032714A1 - Lave-vaisselle - Google Patents

Lave-vaisselle Download PDF

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Publication number
WO2020032714A1
WO2020032714A1 PCT/KR2019/010115 KR2019010115W WO2020032714A1 WO 2020032714 A1 WO2020032714 A1 WO 2020032714A1 KR 2019010115 W KR2019010115 W KR 2019010115W WO 2020032714 A1 WO2020032714 A1 WO 2020032714A1
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WO
WIPO (PCT)
Prior art keywords
duct
air
circulation
tub
circulation duct
Prior art date
Application number
PCT/KR2019/010115
Other languages
English (en)
Korean (ko)
Inventor
김대규
김승훈
김일환
윤상헌
Original Assignee
엘지전자 주식회사
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 엘지전자 주식회사 filed Critical 엘지전자 주식회사
Priority to US17/267,647 priority Critical patent/US20210186299A1/en
Publication of WO2020032714A1 publication Critical patent/WO2020032714A1/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
    • 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
    • A47L15/00—Washing or rinsing machines for crockery or tableware
    • A47L15/42—Details
    • A47L15/4246—Details of the tub
    • 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
    • A47L15/486—Blower 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
    • A47L2501/10—Air circulation, e.g. air intake or venting arrangements

Definitions

  • the present invention relates to a dishwasher.
  • the dishwasher is a device that can wash dishes using water and detergent in a space where the dishes can be stored, and wash the dishes through a rinsing and drying process. Cleaning and rinsing with water and detergent can remove foreign substances from the dishes. In addition, it is possible to finish the washing of the dish through a drying process to remove the water remaining in the dish.
  • the drying process of the dishwasher increases the temperature of the water sprayed on the tableware, increases the temperature of the tableware, promotes the evaporation of the water on the tableware, and condenses the evaporated water vapor in a cooling duct located inside or outside the washing tank, Absorption can be done.
  • the problem to be solved by the present invention is to provide a dishwasher that can be discharged to the outside by lowering the humidity of the air discharged from the tub.
  • Another object of the present invention is to provide a dishwasher capable of effectively drying the tub by flowing the air of the tub in a circulating manner.
  • the dishwasher in order to achieve the above object, the tub to form a washing chamber for washing the washing object;
  • a first circulation duct through which air discharged from the tub flows;
  • External air inlet ducts through which air flows from the outside;
  • a fan assembly for introducing and discharging air flowing through the first circulation duct and the outside air inlet duct;
  • a second circulation duct for heating part of the air discharged from the fan assembly and supplying the tub to the tub;
  • the second circulation duct may include a circulation unit heater for heating the air supplied to the tub, and may heat the air introduced into the tub.
  • a first mixing duct for mixing the first circulation duct and the air introduced from the outside air inlet duct and supplying the air to the fan assembly; And a second mixing duct for supplying air discharged from the fan assembly to the second circulation duct and the exhaust duct, respectively, to mix the air discharged from the inside of the tub, and to divide or discharge the mixed air.
  • the second mixing duct may further include a second control valve for adjusting the ratio of the air discharged from the second circulation duct and the exhaust duct, respectively, it is possible to adjust the ratio of the air is mixed or disposed.
  • the first control valve is disposed in a portion where the first circulation duct and the outside air inlet duct are laminated, and between the first circulation passage formed inside the first circulation duct and the outside air passage formed inside the outside air inlet duct.
  • the first control valve may be arranged to reduce the amount of inlet air flowing into the outside air inlet duct as the drying step proceeds.
  • the second control valve is disposed in a portion where the second mixing duct is branched into the second circulation duct and the exhaust duct, and a second circulation passage formed in the second circulation duct and an exhaust passage formed inside the exhaust duct. Rotating therebetween, the ratio of the air discharged from the second mixed duct to the second circulation duct and the exhaust duct may be adjusted to adjust the ratio of the discharged air and the circulated air.
  • the flow path cross sectional area of the first circulation duct and the flow path cross sectional area of the external air inlet duct are different from each other, so that the ratio of air to be mixed can be adjusted.
  • the flow path cross sectional area of the second circulation duct and the flow path cross sectional area of the exhaust duct are different from each other, so that the ratio of air discharged or circulated can be adjusted.
  • the first circulation duct and the outside air inlet duct may be connected to the fan assembly, respectively, and the air and the outside air circulated may be mixed in the fan assembly.
  • FIG. 1 is a schematic front cross-sectional view of a dishwasher according to one embodiment of the present invention.
  • FIG. 2 is a perspective view illustrating a tub, a circulation duct, an outside air inlet duct, and an exhaust duct according to an embodiment of the present invention.
  • FIG. 3 is a view for explaining the air flowing in the dishwasher according to an embodiment of the present invention.
  • Figure 4 is a schematic diagram showing a first control valve for controlling the air flowing between the first circulation passage, the outside air inflow passage in accordance with an embodiment of the present invention.
  • FIG. 5 is a schematic diagram illustrating a second control valve for controlling air flowing between the second circulation passage and the exhaust passage according to an embodiment of the present invention.
  • FIG. 6 is a view for explaining the air flowing in the dishwasher according to another embodiment of the present invention.
  • FIG. 1 is a schematic front cross-sectional view of a dishwasher according to one embodiment of the present invention.
  • the dishwasher 10 is coupled to a cabinet 12 and a cabinet 12 forming an outer shape, and a door 16 and a cabinet 12 that open and close the inside of the cabinet 12. It includes a tub 14 installed therein and formed with a washing chamber 14a for processing the dishes placed therein.
  • the cabinet 12 and the tub 14 have a form in which the front surface on which the door 16 is disposed is opened.
  • the dishwasher 10 may include a dispenser (not shown) for storing the detergent introduced by the user and injecting the detergent into the tub 14 in the washing step.
  • the dispenser may be disposed in the door 16.
  • Cabinet 12 forms an outer shape, one side may be open.
  • the tub 14 according to the present embodiment is disposed inside the cabinet 12.
  • the tub 14 according to the present exemplary embodiment may form a space between the cabinet 12 and the heat exchange duct 80 and the circulation ducts 60 and 70 to be described below.
  • a circulation duct inlet hole 60b through which air flowing through the washing chamber 14a inside the tub 14 is discharged to the circulation ducts 60 and 70 is formed.
  • the side of the tub 14 according to the present embodiment is formed with a circulation duct exhaust hole 64b through which air flowing in the circulation ducts 60 and 70 is discharged into the washing chamber 14a inside the tub 14.
  • Dishwasher 10 is a rack (36, 38) for receiving the dishes in the tub 14, the spray nozzle 30 for spraying the washing water toward the dishes accommodated in the rack (36, 38) 32, 34, a sump 18 for supplying washing water to the injection nozzles 30, 32, and 34, and a washing pump 20 for pumping the washing water stored in the sump 18 into the injection module.
  • the racks 36 and 38 include an upper rack 36 disposed above the washing chamber 14a and a lower rack 38 disposed below the upper rack 36.
  • the spray nozzles 30, 32, and 34 are disposed on the upper side of the washing chamber 14a and disposed between the top spray nozzle 30, the upper rack 36, and the lower rack 38 for spraying the washing water into the washing chamber 14a. It is disposed below the upper injection nozzle 32 and the lower rack 38 for spraying the washing water to the upper rack 36 or the upper rack 36 and the lower rack 38, spraying the washing water to the lower rack (38) It may further include a lower portion four nozzles (34).
  • Each of the plurality of injection nozzles 30, 32, and 34 may be connected to a plurality of injection nozzle connecting pipes 40, 42, and 44.
  • the impeller 22 rotating to supply the washing water in the washing pump 20 to the plurality of injection nozzles, the washing motor 24 rotating the impeller 22, and the washing pump 20 inside the washing pump 20. It may include a heater 26 for heating the wash water.
  • the washing water pumped from the washing pump 20 flows through the washing water supply pipe 46, and the switching valve 28 connects at least one of the plurality of injection nozzles 30, 32, and 34 to the washing water supply pipe 46.
  • the dishwasher 10 may include a water supply assembly for supplying washing water into the dishwasher and a drainage assembly for draining the water stored in the dishwasher.
  • the water supply assembly includes a water supply pipe 48 for forming a water supply passage through which the washing water is supplied from an external water source, a water supply valve 50 for opening and closing the water supply passage formed in the water supply pipe 48, and a sump through the water supply passage. It may include a flow meter (not shown) for measuring the flow rate of the washing water flowing to 18.
  • the drainage assembly according to the present embodiment is disposed on the drainage pipe 52 in which the drainage flow path for guiding water stored in the sump 18 to the outside and the drainage flow path formed in the drainage pipe 52 is disposed to wash the water in the sump 18. It may be provided with a drain pump 54 for draining to the outside.
  • the drain pump 54 may include a drain motor (not shown) for generating a rotational force.
  • FIG. 2 is a perspective view illustrating a tub, a circulation duct, an outside air inlet duct, and an exhaust duct according to an embodiment of the present invention.
  • 3 is a view for explaining the air flowing in the dishwasher according to an embodiment of the present invention.
  • Figure 4 is a schematic diagram showing a first control valve for controlling the air flowing between the first circulation passage, the outside air inflow passage in accordance with an embodiment of the present invention.
  • 5 is a schematic diagram illustrating a second control valve for controlling air flowing between the second circulation passage and the exhaust passage according to an embodiment of the present invention.
  • Dishwasher 10 is disposed on one side of the tub 14, the air discharged from the tub 14 through the circulation duct inlet (60b) (hereinafter 'first air (A1)')
  • the first air duct 60 that flows, the outside air inflow duct 62 through which the air introduced from the outside (hereinafter referred to as 'second air A2') flows, and the first air that flows through the first circulation duct 60
  • the fan assembly 68 for introducing and discharging the second air A2 flowing through the A1 and the outside air inlet duct 62 and the air discharged from the fan assembly 68 are heated and supplied to the tub 14.
  • the second circulation duct 64 includes an exhaust duct 66 for exhausting the air discharged from the fan assembly to the outside of the cabinet 12.
  • the air flowing in the second circulation duct 64 is divided into the third air A3 and the air flowing in the exhaust duct 66 is described as the fourth air A4.
  • the air discharged from the washing chamber 14a inside the tub 14 is introduced through the circulation duct inlet hole 60b.
  • the air flowing through the first circulation duct 60 flows to the fan assembly 68.
  • a first circulation passage 60a through which air discharged from the tub 14 flows is formed in the first circulation duct 60.
  • the first circulation duct 60 according to the present embodiment may be connected to the external air inlet duct 62 at one side.
  • the outside air inlet duct 62 forms an outside air flow path 62a through which external air introduced from the outside of the cabinet 12 flows.
  • the outside air inlet duct 62 may communicate with the outside at the rear or the bottom of the cabinet 12. It is also possible to communicate with a space formed under the cabinet 12 and the tub 14.
  • the second air A2 flowing through the outside air passage 62a is mixed with the first air A1 to lower the humidity of the circulating air discharged from the tub 14.
  • the passage cross-sectional area of the first circulation duct 60 and the passage cross-sectional area of the external air inlet duct 62 may be formed differently. Therefore, by adjusting the size of the cross-sectional area of the first circulation passage (60a) and the cross-sectional area of the external air passage (62a), it is possible to adjust the mixing ratio of the outside air flowing into the fan assembly (68).
  • the second circulation duct 64 forms a second circulation passage 64a through which air mixed with the second air introduced from the outside of the first air A1 discharged from the tub 14 flows. Therefore, the third air A3 flowing through the second circulation duct 64 may maintain a state in which the humidity is lower than that of the first air A1.
  • a circulation unit heater 70 for heating air flowing through the second circulation channel 64a is disposed.
  • the circulation heater 70 is disposed at the inlet end of the second circulation duct 64.
  • the circulation heater 70 is disposed downstream of the second control valve 74 to be described below.
  • Only the third air A3 flowing through the second circulation duct 64 may be heated.
  • the third air A3 flowing through the second circulation duct 64 is heated by the circulation heater 70 and supplied to the washing chamber 14a inside the tub 14.
  • the exhaust duct 66 forms an exhaust passage 66a through which air mixed with the second air introduced from the outside of the first air A1 discharged from the tub 14 flows. Therefore, the fourth air A4 flowing through the exhaust passage 66a may be exhausted in a state where the humidity is lower than that of the first air A1. Therefore, the humid air discharged from the tub 14 to the outside of the cabinet 12 is not directly discharged.
  • the flow path cross-sectional area of the second circulation duct 64 and the flow path cross-sectional area of the exhaust duct 66 may be formed differently. Therefore, by adjusting the size of the cross-sectional area of the second circulation passage 64a and the cross-sectional area of the exhaust passage 66a, the flow rate of air circulating the air discharged from the tub 14 and the flow rate of the exhausted air can be adjusted. .
  • the exhaust duct 66 may form the exhaust ports 67a and 67b in the upper front of the tub 14.
  • a plurality of exhaust ports 67a and 67b according to the present embodiment may be formed at the front upper side of the tub 14.
  • the exhaust ports 67a and 67b according to the present exemplary embodiment may be disposed in an area that does not interfere with the configuration of the door 16 in consideration of the locked state of the door 16.
  • the fan assembly 68 forms an outer shape, a fan housing (not shown) connecting the first mixing duct 76 and the second mixing duct 78 and a fan disposed inside the fan housing to form a flow of air. (Not shown), a fan motor (not shown) for driving the fan may be included.
  • the first air A1 and the second air A2 introduced into the fan housing may flow through the inside of the fan housing by a fan rotating inside the fan housing, and may be further mixed.
  • one inlet port (not shown) communicating with the first mixing duct 76 and one outlet port (not shown) communicating with the second mixing duct 78 may be formed.
  • the dishwasher 10 includes a first mixing duct 76 and a fan that mix air supplied from the first circulation duct 60 and the air inlet duct 62 and supply the same to the fan assembly 68. And a second mixing duct 78 for supplying the air discharged from the assembly 68 to each of the second circulation duct 64 and the exhaust duct 66.
  • the first mixing duct 76 is mixed with wet air discharged from the tub 14 flowing the first circulation duct 60 and external air introduced from the outside of the cabinet 12 flowing the outside air inlet duct 62. Flow. Therefore, the air flowing through the first mixing duct 76 may maintain a lower humidity than the first air A1.
  • the air discharged from the fan assembly 68 flows.
  • the air flowing through the second mixing duct 78 may be air in which the first air A1 and the second air A2 are further mixed while passing through the fan assembly 68.
  • the dishwasher 10 includes a first control valve 72 for adjusting a ratio of the first air A1 and the second air A2 introduced into the first mixing duct 76, and the second control valve 72. And a second control valve 74 for controlling the ratio of air discharged from the mixing duct 78 to the second circulation duct 64 and the exhaust duct 66, respectively.
  • the first control valve 72 may be disposed at a portion where the first circulation duct 60 and the external air inlet duct 62 are laminated.
  • the first control valve 72 rotates between the first circulation passage 60a and the outside air passage 62a, and controls the first air A1 and the second air A2 flowing into the first mixing duct 76. You can adjust the ratio.
  • the first control valve 72 drives the fan assembly 68, operates the circulation heater 70, and is arranged to reduce the inflow of outside air introduced into the outside air inlet duct 62 when the drying step is performed.
  • the first control valve 72 is disposed so that the outside air ratio is high in the early stage of the drying step and the outside air ratio is low in the latter stage to discharge the humidity of the mixed air discharged to the exhaust duct 66 to a predetermined level or less.
  • the first control valve 72 when the fan assembly 68 is driven, the circulation heater 70 is operated, and the drying step is performed, the first control valve 72 is the first circulation passage 60a at the beginning of the progress. ) And the first control valve 72 may be disposed to the outside air flow path 62a side.
  • the second control valve 74 may be disposed at a portion where the second mixing duct 78 is branched into the second circulation duct 64 and the exhaust duct 66.
  • the second control valve 74 rotates between the second circulation passage 64a and the exhaust passage 66a, and the air discharged from the second mixing duct 78 receives the second circulation duct 64 and the exhaust duct 66. ) The rate of discharge can be adjusted.
  • FIG. 6 is a view for explaining the air flowing in the dishwasher according to another embodiment of the present invention.
  • the dishwasher 10 according to the present exemplary embodiment has a structure in which the first circulation duct 60 and the outdoor air inlet duct 62 are connected to the fan assembly 68, respectively.
  • the fan assembly 68 has the same configuration as the fan housing, the fan, and the fan motor, but the fan housing has a first inlet port (not shown) and an external air inlet duct communicating with the first circulation duct 60. A second inlet (not shown) in communication with 62 may be formed.
  • the size of the cross-section of the first inlet and the size of the second inlet according to the present embodiment may be formed in different sizes. Therefore, the mixing ratio of the outside air introduced into the fan assembly 68 can be adjusted.

Landscapes

  • Washing And Drying Of Tableware (AREA)

Abstract

La présente invention concerne un lave-vaisselle. Le lave-vaisselle selon la présente invention comprend : une cuve pour former une chambre de lavage pour laver un objet à laver ; un premier conduit de circulation dans lequel l'air évacué depuis la cuve s'écoule ; un conduit d'introduction d'air externe dans lequel l'air introduit depuis l'extérieur s'écoule ; un ensemble de ventilateur pour introduire l'air s'écoulant dans le premier conduit de circulation et le conduit d'introduction d'air externe, puis évacuer celui-ci ; un deuxième conduit de circulation pour chauffer une partie de l'air évacué depuis l'ensemble de ventilateur et distribuer celui-ci dans la cuve ; et un conduit d'échappement pour évacuer, à l'extérieur, la partie restante de l'air évacué depuis l'ensemble de ventilateur.
PCT/KR2019/010115 2018-08-10 2019-08-09 Lave-vaisselle WO2020032714A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US17/267,647 US20210186299A1 (en) 2018-08-10 2019-08-09 Dishwasher

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2018-0093689 2018-08-10
KR1020180093689A KR102541159B1 (ko) 2018-08-10 2018-08-10 식기세척기

Publications (1)

Publication Number Publication Date
WO2020032714A1 true WO2020032714A1 (fr) 2020-02-13

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ID=69415616

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2019/010115 WO2020032714A1 (fr) 2018-08-10 2019-08-09 Lave-vaisselle

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US (1) US20210186299A1 (fr)
KR (1) KR102541159B1 (fr)
WO (1) WO2020032714A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022267628A1 (fr) * 2021-06-23 2022-12-29 青岛海尔洗碗机有限公司 Dispositif de rideau d'air pour lave-vaisselle, et lave-vaisselle
EP4162858A1 (fr) * 2020-10-07 2023-04-12 Whirlpool Corporation Appareil de traitement de la vaisselle comprenant un circuit d'alimentation en air

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20230046683A1 (en) * 2021-08-11 2023-02-16 Whirlpool Corporation Air barrier for door condensation

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KR20110060340A (ko) * 2009-11-30 2011-06-08 삼성전자주식회사 식기세척기 및 그 제어방법
KR20110139538A (ko) * 2010-06-23 2011-12-29 삼성전자주식회사 건조덕트를 구비하는 가전제품
KR20130087847A (ko) * 2012-01-30 2013-08-07 한국과학기술연구원 제습장치를 구비한 식기세척기
JP2014212827A (ja) * 2013-04-23 2014-11-17 パナソニック株式会社 食器洗い乾燥機
US20160022116A1 (en) * 2014-07-23 2016-01-28 Whirlpool Corporation Dishwasher

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DE602005026916D1 (de) 2005-05-10 2011-04-28 Electrolux Home Prod Corp Geschirrspüler
EP3257425B1 (fr) * 2015-02-12 2020-09-16 Foshan Shunde Midea Washing Appliances Mfg. Co., Ltd. Machine à laver la vaisselle
CN106264409B (zh) 2016-09-05 2019-01-18 佛山市顺德区美的洗涤电器制造有限公司 洗碗机的干燥系统及洗碗机

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20110060340A (ko) * 2009-11-30 2011-06-08 삼성전자주식회사 식기세척기 및 그 제어방법
KR20110139538A (ko) * 2010-06-23 2011-12-29 삼성전자주식회사 건조덕트를 구비하는 가전제품
KR20130087847A (ko) * 2012-01-30 2013-08-07 한국과학기술연구원 제습장치를 구비한 식기세척기
JP2014212827A (ja) * 2013-04-23 2014-11-17 パナソニック株式会社 食器洗い乾燥機
US20160022116A1 (en) * 2014-07-23 2016-01-28 Whirlpool Corporation Dishwasher

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4162858A1 (fr) * 2020-10-07 2023-04-12 Whirlpool Corporation Appareil de traitement de la vaisselle comprenant un circuit d'alimentation en air
US11672404B2 (en) * 2020-10-07 2023-06-13 Whirlpool Corporation Dish treating appliance with an air supply circuit
WO2022267628A1 (fr) * 2021-06-23 2022-12-29 青岛海尔洗碗机有限公司 Dispositif de rideau d'air pour lave-vaisselle, et lave-vaisselle

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Publication number Publication date
US20210186299A1 (en) 2021-06-24
KR20200018014A (ko) 2020-02-19
KR102541159B1 (ko) 2023-06-07

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