WO2009028840A1 - Lave-vaisselle - Google Patents

Lave-vaisselle Download PDF

Info

Publication number
WO2009028840A1
WO2009028840A1 PCT/KR2008/004917 KR2008004917W WO2009028840A1 WO 2009028840 A1 WO2009028840 A1 WO 2009028840A1 KR 2008004917 W KR2008004917 W KR 2008004917W WO 2009028840 A1 WO2009028840 A1 WO 2009028840A1
Authority
WO
WIPO (PCT)
Prior art keywords
exhaust duct
washing machine
dish washing
door
machine according
Prior art date
Application number
PCT/KR2008/004917
Other languages
English (en)
Inventor
Jung Youp Han
Yong Jin Choi
Joon Ho Pyo
Young Hwan Park
Seong Ho Kim
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.
Priority to EP08793427.9A priority Critical patent/EP2180817B1/fr
Publication of WO2009028840A1 publication Critical patent/WO2009028840A1/fr

Links

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
    • A47L15/4251—Details of the casing
    • A47L15/4257—Details of the loading door
    • 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

Definitions

  • the present invention relates to a dish washing machine, and more particularly, to a dish washing machine that is capable of preventing moisture from being formed on a bottom or a wall around the bottom of the dish washing machine and preventing the bottom or the wall of the dish washing machine from being deformed due to the moisture.
  • a related art dish washing machine sprays washing water on dishes placed in a tub to remove foreign matter, such as food waste left on the dishes, thereby automatically washing the dishes.
  • the operation of the dish washing machine generally includes a washing cycle for spraying washing water mixed with detergent in the tub containing the dishes to remove the foreign matter left on the dishes, a rinsing cycle for spraying washing water not mixed with the detergent in the tub to remove the remaining foreign matter and the detergent after performing the washing cycle, and a drying cycle for drying the dishes.
  • FIG. 1 illustrates a related art dish washing machine.
  • the related art washing machine includes a case 100 forming the external appearance of the dish washing machine, and a door 120 for opening and closing the case 100.
  • a tub 150 is also mounted in the case 100 and defines a space for receiving dishes to be washed. Further, a sump 200 is mounted below the tub 150 for storing washing water.
  • the tub 150 includes shelves 160 and 170 for holding the dishes and spray arms 220 and 230 for spraying water toward the shelves 160 and 170.
  • the washing machine also includes a fan 90 and exhaust duct 92 mounted at the door 120. The fan 90 and exhaust duct 92 remove wet air from the tub 150.
  • the exhaust duct 92 extends to a lower part of the dish washing machine and guides air exhausted by the fan 90 out of the dish washing machine. Disclosure of Invention
  • the dish washing machine is generally installed in a kitchen in a built-in structure together with other articles of kitchen furniture "f", such as a sink, stove, etc.
  • other articles of kitchen furniture "f" such as a sink, stove, etc.
  • the exhaust duct 92 extends to the lower part of the dish washing machine, and therefore air is exhausted out of the dish washing machine through the lower part of the dish washing machine. However, and with reference to FIGs. 1 and 2, some of the exhausted is not exhausted through the front of the dish washing machine, but rather flows to the rear and the sides of the dish washing machine.
  • one object of the present invention is directed to a dish washing machine that substantially obviates one or more problems due to limitations and disadvantages of the related art.
  • Another object of the present invention is to provide a dish washing machine that is capable of preventing moisture from being formed on the bottom or the wall around the bottom of the dish washing machine and preventing the bottom or the wall of the dish washing machine from being deformed due to the moisture.
  • the present invention provides in one aspect a dish washing machine including a tub configured to form a space for a dish to be washed, a door configured to open or close the tub, and an exhaust duct extended to an under portion of the door to exhaust air in the tub. Further, the exhaust duct has a lower end sloped with respect to an installation surface of the dish washing machine.
  • the present invention provides a dish washing machine including a tub configured to form a space for a dish to be washed, a door configured to open or close the tub, and an exhaust duct configured to exhaust air in the tub to an under portion of the door and toward an opening direction of the door.
  • the air exhausted from the exhaust duct is directed in the opening direction of the door, and therefore, the air flows toward the open front of the dish washing machine. Consequently, the air is smoothly exhausted out of the dish washing machine without the introduction of the air to the sides and the rear of the dish washing machine, whereby the formation of moisture on the installation surface of the dish washing machine is minimized.
  • the high-temperature air is smoothly exhausted out of the dish washing machine, and therefore, the deformation of the installation surface of the dish washing machine due to heat is minimized.
  • FIG. 1 is a sectional view illustrating a structure of a related art dish washing machine
  • FIG. 2 is a front view illustrating the dish washing machine of FIG. 1, which is installed in a built-in structure;
  • FIG. 3 is a sectional view illustrating a structure of a dish washing machine according to an embodiment of the present invention.
  • FIG. 4 is a front view illustrating an interior of a door of the dish washing machine shown in FIG. 3;
  • FIG. 5 is a perspective view illustrating a portion of an exhaust duct of the washing machine shown in FIG. 3;
  • FIG. 6 is a sectional view illustrating the lower end of the exhaust duct of FIG. 5. Best Mode for Carrying Out the Invention
  • FIG. 3 is a sectional view illustrating a fan and a fan housing of a dish washing machine according to an embodiment of the present invention.
  • the dish washing machine includes the case 100 forming the external appearance of the dish washing machine, the door 120 for opening and closing the case 100, the tub 150, the shelves 160 and 170, and the spray arms 220 and 230.
  • These components are similar to those of the previously-described related dish washing machine, are denoted by the same reference numerals, and therefore a detailed description thereof is omitted.
  • the dish washing machine also includes a control panel 130 and a sump 205.
  • the sump 205 includes a pump 210 for pumping washing water and a filter (not shown) for filtering the washing water.
  • the sump 205 also includes a sump heater 290 for heating the washing water.
  • the sump 205 is connected to a first water supply pipe 250, through which fresh water is supplied from an external water source, and a drainage pipe 270, through which the washing water in the sump 205 is drained to an outside of the washing machine.
  • a first water supply valve 255 for controlling the supply of water into the sump 205 is also mounted on the sump 205.
  • the upper shelf 160 and the lower shelf 170 are mounted at the upper part and the lower part of the tub 150, respectively.
  • the upper spray arm 230 and the lower spray arm 220 are mounted at the upper part and the lower part of the tub 150 for spraying the water pumped by the pump 210 toward the upper shelf 160 and the lower shelf 170, respectively.
  • a top nozzle 240 for spraying the water pumped by the pump 210 from the upper part to the lower part of the tub 150, is mounted in the upper part of the tub 150.
  • a connecting pipe 110 connects the pump 210 and the top nozzle 240.
  • steam may be also sprayed or supplied into the tub 150 by the pump 210 and the spray arms 230 and 220 in addition to the washing water sprayed into the tub 150.
  • the washing machine includes a steam generator 300 which is driven separately from the sump heater 290 mounted in the sump 205.
  • the steam generator 300 communicates with a second water supply pipe 260 and also communicates with the tub 150 via a steam supply pipe 280.
  • a second water supply valve 265 for controlling the supply of water into the steam generator 300 is also mounted on the second water supply pipe 260.
  • the steam generator 300 includes a steam heater 310 for heating water supplied into the steam generator 300 and a water level sensor 320 for sensing the water level in the steam generator 300.
  • the water level sensor 320 may sense, for example, a low water level and a high water level.
  • the low water level is established to protect the steam heater 310
  • the high water level is established to prevent the overflow of the water supplied into the steam generator 300 from the steam generator 300.
  • the steam generator 300 may further include a steam supply valve (not shown) for controlling the opening and closing of the steam supply pipe 280 to supply steam at a desired time.
  • the dish washing machine may further include a contamination sensor
  • the contamination sensor may be mounted at one side of the sump 205 for sensing the contamination degree of washing water circulating in the tub.
  • a control unit for controlling the dish washing machine is electrically connected to electrically-operating components, such as the control panel 130, the pump 210, and the steam generator 300, to control the operation of the dish washing machine.
  • the upper side of the tub 150 includes mounted components for exhausting high-temperature wet air in the tub 150, heated by the steam and the heated washing water, out of the dish washing machine.
  • the component for exhausting air inside the washing machine includes an exhaust fan 390 for suctioning high-temperature wet air from the tub 150, a housing 394 defining a space for receiving the exhaust fan 390, and an exhaust duct 392 for guiding the high-temperature wet air, suctioned by the exhaust fan 390, out of the dish washing machine.
  • the exhaust fan 390 may be a bidirectional suction fan. Specifically, the exhaust fan 390 suctions the high-temperature wet air from the tub 150 into the housing 394, and, at the same time, suctions low-temperature, low-humidity air from the outside into the exhaust duct 392, such that the condensation of moisture is performed in the housing 394 or the exhaust duct 392.
  • the exhaust fan 390 may be configured to suction and exhaust only the air in the tub 150.
  • the exhaust duct 392 may be coupled to one side of the housing 394 such that the exhaust duct 392 communicates with the housing 394.
  • the exhaust duct 392 extends downward through the interior of the door 120 toward the installation surface of the dish washing machine. Consequently, air exhausted from the housing 394 is exhausted to the lower part of the door 120 along the exhaust duct 392.
  • the exhaust duct 392 also includes ribs 399 for guiding the flow of air exhausted from the exhaust duct 392.
  • FIG. 5 is a perspective view illustrating the exhaust duct 392 according to an embodiment of the present invention
  • FIG. 6 is a sectional view illustrating the lower end of the exhaust duct of FIG. 5.
  • one side of the middle part of the exhaust duct 392 includes a water recovering hole 393, which communicates with the tub 150 for recovering water flowing in the exhaust duct 392 to the tub 150.
  • the exhaust duct also includes a first bent part 397 such that a lower end 391 of the exhaust duct 392 is inclined at a predetermined angle with respect to the installation surface of the dish washing machine.
  • the first bent part 397 is formed adjacent to the lower end 391 of the exhaust duct 392. Consequently, the lower end 391 of the exhaust duct 392 is inclined at the predetermined angle to the installation surface of the dish washing machine such that the lower end 391 of the exhaust duct 392 is directed in the direction in which the door 120 is directed (i.e., the direction in which the door 120 is opened).
  • the lower end 391 of the exhaust duct 392 is directed in the direction in which the door 120 is directed is as follows.
  • the opposite sides of the dish washing machine are closed by the sides of the kitchen furniture "f" (see FIG. 2)
  • the rear of the dish washing machine is also closed by the wall, and an open space for opening and closing the door 120 is formed at the front of the dish washing machine. Therefore, the lower end 391 of the exhaust duct 392 is directed to the open space in the direction in which the door 120 is directed such that air exhausted from the exhaust duct 392 is exhausted toward the open space.
  • the exhaust duct 392 is mounted in the door 120.
  • the door 120 includes various parts, such as a frame for maintaining the strength of the door 120 and a noise isolation member for isolating noise.
  • the interior space of the door 120 is limited. Consequently, as shown in FIG. 6, the exhaust duct 392 is mounted in the door 120, such that the exhaust duct 392 is in tight contact with the inside of a panel 122 constituting the front of the door 120, for maximum spatial utilization.
  • the exhaust duct 392 preferably includes a second bent part 398 at the exhaust duct 392 such that the inclined lower end 391 of the exhaust duct 392 is located in the door 120 of the dish washing machine.
  • the second bent part 398 is formed at the upper side of the first bent part 397 of the exhaust duct 392.
  • the second bent part 398 is bent at least once in the rearward direction of the door 120, which is opposite to the direction in which the first bent part 397 is bent. Consequently, the first bent part 397, which is inclined to be directed toward the door 120, does not protrude outward from the dish washing machine, thereby increasing the aesthetical appearance of the dish washing machine.
  • the exhaust duct 392 is formed such that the second bent part 398 is bent in the direction opposite to the direction in which the door 120 is opened, and the first bent part 397 is bent in the direction in which the door is opened.
  • the exhaust duct 392 may be spaced by the protruding length of the inclined lower end 391 of the exhaust duct 392 from the panel 122 constituting the front of the door 120.
  • the exhaust duct 392 shown in FIG. 4 includes the ribs 399 for guiding the flow of air exhausted from the exhaust duct 392. That is, one or more ribs 399 are preferable formed at the lower end 391 of the exhaust duct 392.
  • the ribs 399 are also preferably inclined such that exhausted air flows not toward the sides of the dish washing machine, but toward a vertical center line C of the door 120 as shown in FIG. 4.
  • the vertical center line C of the door 120 is an imaginary perpendicular line drawn perpendicularly to the installation surface at the outer middle part of the door 120.
  • the ribs 399 being inclined minimizes the contact of the air exhausted from the exhaust duct 392 with the sides of the kitchen furniture located at the sides of the dish washing machine.
  • the lower end of the exhaust duct may be inclined toward the vertical center line of the door.
  • the exhaust duct 392 is mounted in the door 120, and preferably, the exhaust duct 392 is mounted in the door 120 such that the exhaust duct 392 is deviated to the left side or the right side when viewed from the front.
  • the following description will be given on the assumption that the exhaust duct 392 is deviated to the left side.
  • the exhaust duct 392 is preferably formed such that the air is gradually diffused during the flow of the air in the exhaust duct 392.
  • a sectional area of the exhaust duct 392 is gradually widened so the air is diffused in the exhaust duct.
  • an appropriate exhaust pressure is related to the distance between the lower end 391 of the exhaust duct 392 and the outer surface of the door 120 of the dish washing machine, the sectional area and shape of the exhaust duct 392, and the blowing pressure of the exhaust fan 390. However, these factors may be changed depending upon the size or model of the dish washing machine.
  • the frame for maintaining the strength of the door and various components for noise isolation and watertightness are mounted in the door 120, with the result that the inner space of the door 120 is very small. Consequently, the cross section of the exhaust duct 392 is preferably gradually lowered along the downward direction of the exhaust duct 392, whereas the width of the exhaust duct 392 is gradually increased along the downward direction of the exhaust duct 392, to avoid interference with the components and to diffuse the air flowing in the exhaust duct 392.
  • the cross section of an inlet end of the exhaust duct 392, which is coupled to the housing 394, is higher than the cross section of the lower end 391 of the exhaust duct 392 through which air is exhausted.
  • the width of the inlet end of the exhaust duct 392 coupled to the housing 394 is greater than the width of the lower end 391 of the exhaust duct 392 through which air is exhausted.
  • the exhaust duct 392 is also preferably formed in a structure in which the exhaust duct 392 has a step part 395 at least once such that the cross section of the exhaust duct 392 is gradually decreased along the downward direction of the exhaust duct 392.
  • the step part 395 is preferably formed to avoid interference with the components mounted in the door 120. Also, the step part 395 may be formed to serve as a guide 396 for guiding the water flowing in the exhaust duct 392 to the water recovering hole 393 along the step part 395.
  • the top of the step part 395 is preferably formed to be inclined downward toward the water recovering hole 393. Specifically, the water flowing along the inside of the exhaust duct 392 is guided to the water recovering hole 393 along the guide 396 of the step part 395.
  • the cross section of the exhaust duct 392 is gradually lowered along the downward direction of the exhaust duct 392, whereas the width of the exhaust duct 392 is gradually increased along the downward direction of the exhaust duct 392.
  • the side (i.e., the right side) of the exhaust duct 392 facing the imaginary vertical center line C of the door 120 of the right and left sides of the exhaust duct 392 is preferably gradually inclined toward the vertical center line C of the door 120 along the downward direction of the exhaust duct 392.
  • the side (i.e., the left side) of the exhaust duct 392 opposite to the side of the exhaust duct 392 facing the vertical center line C of the door 120 of the right and left sides of the exhaust duct 392 is preferably substantially formed perpendicularly to the installation surface.
  • the point where the right side of the exhaust duct 392 starts to be inclined may be located above the middle height of the exhaust duct 392.
  • the air exhausted from the exhaust duct 392 has inertia in which the air will diffuse in the exhaust duct 392. Consequently, the air exhausted from the exhaust duct
  • the air in the tub of the dish washing machine is exhausted outside through the following process.
  • the exhaust fan 390 when the exhaust fan 390 is operated, high-temperature, high-humidity air in the tub 150 is suctioned into the housing 394 and is guided to the exhaust duct
  • the air is exhausted toward the vertical center line C of the door 120.
  • the air is smoothly exhausted out of the dish washing machine without contact of the air with the furniture located at the sides of the dish washing machine.

Landscapes

  • Detail Structures Of Washing Machines And Dryers (AREA)
  • Washing And Drying Of Tableware (AREA)
  • Main Body Construction Of Washing Machines And Laundry Dryers (AREA)

Abstract

L'invention concerne un lave-vaisselle qui comprend une cuve (150) conçue de manière à former un espace pour une pièce de vaisselle à laver, une porte (120) permettant d'ouvrir ou de fermer cette cuve (150), et une conduite d'évacuation (392) qui s'étend vers une partie inférieure de la porte (120) pour évacuer l'air de la cuve (150). En outre, la conduite d'évacuation (392) comprend une extrémité inférieure (391) inclinée par rapport à la surface d'installation du lave-vaisselle.
PCT/KR2008/004917 2007-08-31 2008-08-22 Lave-vaisselle WO2009028840A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP08793427.9A EP2180817B1 (fr) 2007-08-31 2008-08-22 Lave-vaisselle

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2007-0088674 2007-08-31
KR1020070088674A KR101356513B1 (ko) 2007-08-31 2007-08-31 식기세척기

Publications (1)

Publication Number Publication Date
WO2009028840A1 true WO2009028840A1 (fr) 2009-03-05

Family

ID=40387493

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2008/004917 WO2009028840A1 (fr) 2007-08-31 2008-08-22 Lave-vaisselle

Country Status (4)

Country Link
US (1) US20090056769A1 (fr)
EP (1) EP2180817B1 (fr)
KR (1) KR101356513B1 (fr)
WO (1) WO2009028840A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10295256B2 (en) 2009-02-04 2019-05-21 Electrolux Home Products, Inc. Dishwasher, a door assembly for the dishwasher, and an associated method for drying dishware
KR101685357B1 (ko) * 2010-05-07 2016-12-12 엘지전자 주식회사 식기세척기
KR101694169B1 (ko) * 2010-05-07 2017-01-09 엘지전자 주식회사 식기세척기
KR101889778B1 (ko) * 2011-12-19 2018-08-21 엘지전자 주식회사 식기 세척기
CN107348928B (zh) * 2017-06-23 2019-09-20 珠海格力电器股份有限公司 排风系统及包括其的洗碗机

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3908681A (en) * 1973-11-09 1975-09-30 Gen Electric Forced air circulation system for a dishwasher
EP0556773A1 (fr) * 1992-02-17 1993-08-25 MERLONI ELETTRODOMESTICI S.p.A. Machine à laver la vaisselle avec un ventilateur pour la circulation d'air
CH683819A5 (de) * 1991-02-25 1994-05-31 Electrolux Ag Geschirrspüler.
US20060236556A1 (en) * 2005-04-25 2006-10-26 Viking Range Corporation Dishwasher drying system

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Publication number Priority date Publication date Assignee Title
US3068877A (en) * 1958-09-12 1962-12-18 Gen Motors Corp Dishwasher
DE3901170A1 (de) * 1989-01-17 1990-07-19 Licentia Gmbh Geschirrspuelmaschine mit entlueftungsoeffnung
IT1280784B1 (it) * 1995-01-16 1998-02-11 Merloni Elettrodomestici Spa Macchina lavastoviglie con ventola di asciugatura.
DE19704430A1 (de) * 1997-02-06 1998-08-13 Whirlpool Co Geschirrspülmaschine
JP2003260015A (ja) * 2002-03-07 2003-09-16 Hoshizaki Electric Co Ltd 食器洗浄機
DE102005023428A1 (de) * 2005-05-20 2006-11-23 Premark Feg L.L.C. (N.D.Ges.D. Staates Delaware), Wilmington Gewerbliche Geschirrspülmaschine
KR20070074273A (ko) * 2006-01-09 2007-07-12 엘지전자 주식회사 식기세척기
PL1961361T3 (pl) * 2007-02-20 2011-08-31 Electrolux Ab System suszenia dla zmywarki

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3908681A (en) * 1973-11-09 1975-09-30 Gen Electric Forced air circulation system for a dishwasher
CH683819A5 (de) * 1991-02-25 1994-05-31 Electrolux Ag Geschirrspüler.
EP0556773A1 (fr) * 1992-02-17 1993-08-25 MERLONI ELETTRODOMESTICI S.p.A. Machine à laver la vaisselle avec un ventilateur pour la circulation d'air
US20060236556A1 (en) * 2005-04-25 2006-10-26 Viking Range Corporation Dishwasher drying system

Also Published As

Publication number Publication date
EP2180817A4 (fr) 2012-06-20
KR101356513B1 (ko) 2014-01-29
EP2180817A1 (fr) 2010-05-05
EP2180817B1 (fr) 2014-01-01
US20090056769A1 (en) 2009-03-05
KR20090022950A (ko) 2009-03-04

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