EP1919348A2 - Lave-vaisselle - Google Patents

Lave-vaisselle

Info

Publication number
EP1919348A2
EP1919348A2 EP06798564A EP06798564A EP1919348A2 EP 1919348 A2 EP1919348 A2 EP 1919348A2 EP 06798564 A EP06798564 A EP 06798564A EP 06798564 A EP06798564 A EP 06798564A EP 1919348 A2 EP1919348 A2 EP 1919348A2
Authority
EP
European Patent Office
Prior art keywords
dish washer
base
sump
tub
sensor
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Withdrawn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
EP06798564A
Other languages
German (de)
English (en)
Inventor
Soon Yong Kwon
Ho June Song
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
Priority claimed from KR1020050079511A external-priority patent/KR20070027101A/ko
Priority claimed from KR1020050079509A external-priority patent/KR101241866B1/ko
Application filed by LG Electronics Inc filed Critical LG Electronics Inc
Publication of EP1919348A2 publication Critical patent/EP1919348A2/fr
Withdrawn legal-status Critical Current

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
    • A47L15/42—Details
    • A47L15/421—Safety arrangements for preventing water damage

Definitions

  • the present invention relates to a dish washer, and more particularly, to an improved base structure of a dish washer.
  • a dish washer is to remove food or dirt remaining on the dishes through chemical decomposition and mechanical control of water pressure. Since the dish washer serves to perform various functions such as rinsing, sterilizing, and drying, in addition to a washing function, its demand from the moderns in busy daily life is on an increasing trend.
  • a related art dish washer 1 washes the dishes by spraying washing water to the dishes.
  • the dish washer 1 includes a tub 3 provided with a space for washing the dishes, and a base 10 disposed below the tub 3 and provided with various parts for supplying washing water of high pressure to the tub 3.
  • a door 7 that can be opened and closed is provided on a front surface of the tub 3.
  • An upper rack 12 and a lower rack 14 are provided inside the tub 3, wherein the dishes are arranged in the upper and lower racks 12 and 14.
  • An upper spray arm 32 and a lower spray arm 34 are respectively provided below the upper rack 12 and the lower rack 14 to spray the washing water.
  • a heater 15 is provided at one side inside the tub 3 to form steam by heating the water remaining in the tub 3 during a drying stroke after a washing stroke is finished.
  • a sump 9 is provided in the base 10 to receive the washing water, and a washing pump is provided in the sump 9.
  • the washing pump serves to pump the washing water to supply the washing water to the upper spray arm 32 and the lower spray arm 34.
  • the sump 9, the upper spray arm 32 and the lower spray arm 34 are connected with one another by an upper connection pipe 322 and a lower connection pipe 324.
  • the washing pump generally includes a motor 13 generating a driving force, and an impeller (not shown) connected with the motor 13.
  • the base 10 is connected with a lower portion of the tub 3.
  • the motor 13 is connected with the sump 9.
  • the washing water in the sump 9 is pumped by the washing pump and then supplied to the upper spray arm 32 and/or the lower spray arm 34. Accordingly, the washing water is sprayed from the upper spray arm 32 and the lower spray arm 34 to the dishes arranged on the upper rack 12 and/or the lower rack 14 so as to wash the dishes.
  • the washing water may separately be supplied to the upper spray arm 32 and the lower spray arm 34. Alternatively, the washing water may simultaneously be supplied to the upper spray arm 32 and the lower spray arm 34.
  • the washing water sprayed to the dishes is again collected in the sump 9 through a collection hole (not shown) connected with the sump 9. At this time, since the washing water includes contaminant water generated by washing of the dishes, it can be filtered through a predetermined filtering means.
  • the present invention is directed to a dish washer that substantially obviates one or more problems due to limitations and disadvantages of the related art.
  • An object of the present invention is to provide a dsh washer, in which assembly of the dish washer is improved, and an error operation and trouble of a driver due to water leaked in a base can be avoided.
  • a dish washer according to the present invention includes a tub provided with a space for washing the dishes and a communication hole formed on the bottom, a base fixed to the bottom of the tub, having a plane portion which is not connected with the outside, a sump assembly provided in the plane portion of the base and fixed to the tub while shielding the communication hole of the bottom, having a sump and a driver, wherein washing water is received in the sump and the driver transmits a driving force to the sump, and a leakage sensing device provided in the base, sensing a water level of washing water leaked in the base.
  • the dish washer according to the present invention has the following advantages.
  • FIG. 1 is a sectional view illustrating an inner structure of a related art dish washer
  • FIG. is an exploded perspective view of FIG. 1 ;
  • FIG. 3 is a sectional view illustrating an inner structure of a dish washer according to the preferred embodiment of the present invention.
  • FIG. 4 is a perspective view illustrating a base structure of a dish washer according to the preferred embodiment of the present invention
  • HG. 5 is a perspective view illustrating the state that a leakage sensing device and a driver are provided in a base of a dish washer according to the preferred embodiment of the present invention
  • HG. 6 is a perspective view illustrating the process step of fixing a sump assembly of a dish washer according to the preferred embodiment of the present invention to a tub
  • FIG. 7 is a principal perspective view illustrating the state that a sump assembly of a dish washer according to the preferred embodiment of the present invention is fixed to a bottom of a tub
  • FIGs. 8 and 9 illustrate the operation of a leakage sensing device according to the preferred embodiment of the present invention.
  • a dish washer according to the preferred embodiment of the present invention includes a tub 3 provided with a space for washing the dishes, a base
  • the dish washer according to the present invention is provided inside the main body 1 , and a space for washing the dishes is formed inside the tub 3.
  • the tub 3 is provided with a communication hole 3 a formed on the bottom.
  • the communication hole 3 a is formed to communicate the sump 220 of the sump assembly 200 with the inside of the tub 3. [42] Also, it is preferable that the bottom of the tub 3 constituting the communication hole 3a is stepped downwardly along the circumference of the communication hole 3a.
  • the base 100 is fixed to the bottom of the tub 3 to constitute the lower portion of the dish washer.
  • the base 100 includes a plate shaped plane portion 100a. In this case, the plane portion 100a is formed so as not to communicate with the outside, whereby the sump assembly 200 can be provided therein.
  • the structure of the base 100 of the dish washer according to the present invention includes the plane portion 100a having no communication hole
  • the present invention is characterized in that the sump assembly 200 is provided on the plane portion 100a of the base 100 as shown in FIG. 4.
  • the sump assembly 200 includes the driver 210 generating a driving force, and the sump 220 whose lower end portion is fixed to the driver 210.
  • the driver 210 serves to generate the driving force to pump the washing water received in the sump 220, and includes a motor 211, a motor bracket 212, and guide ribs 213.
  • the motor 211 serves to rotate an impeller (not shown) to pump the washing water received in the sump 220.
  • the motor bracket 212 serves to fix the motor 211 to the guide ribs 213.
  • the motor bracket 212 may be formed in a single body with the motor 211. Alternatively, the motor bracket 212 may be formed separately from the motor 211. [51] In the preferred embodiment of the present invention, the motor 211 and the motor bracket 212 are formed in a single body. [52] At this time, the motor bracket 212 is externally extended from both sides of the motor 211, and is provided with a fitting hole 212a at the end, wherein the fitting hole
  • the guide ribs 213 are provided such that the motor 211 is spaced apart from the plane portion 100a of the base 100 at a predetermined height.
  • the guide ribs 213 are extended from the plane portion 100a of the base
  • the guide ribs 213 are respectively provided at both sides around an axis of the motor 211.
  • a screw hole 213a is formed in a position corresponding to the fitting hole 212a of the motor bracket 212 above the guide ribs 213, whereby the motor bracket 212 can be screwed onto the guide ribs 213.
  • the washing water for washing the dishes is received in the sump 220, and the sump 220 is fixed to the driver 210 so that a pumping force from the driver 210 is given to the sump 220 so as to supply the washing water to the tub 3.
  • a plurality of clamp hooks 221 are provided on the sump 220 so that the sump assembly 200 can easily be fixed to the tub 200.
  • the leakage sensing device 300 is provided inside the base 100, and senses the water level of the washing water leaked in the base 100 to transmit a sensing signal, which allows the leaked washing water to be drained out, to a microcomputer (not shown) if the water level reaches a proper water level.
  • the proper water level means a water level directly before the leaked washing water reaches the motor.
  • the leakage sensing device 300 includes a float 310 ascending and descending depending on the water level of the washing water leaked in the base 100, a guide portion 330 guiding ascent and descent of the float 310, and a sensor 350 sensing the water level of the washing water leaked in the base 100 to transmit the sensing signal to the microcomputer (not shown).
  • the float 310 is preferably formed of an expanded polystyrene
  • the float 310 is formed of a Styrofoam material, it is not limited to such a material.
  • the float 310 may be formed of another material having floating characteristics.
  • the float 310 may be formed of a hollow floating material.
  • the guide portion 330 includes a plurality of guides 331 provided in the plane portion 100a of the base 10 at a predetermined height, and inlets 333 provided between the respective guides 331 to allow inflow of the leaked washing water.
  • each of the guides 331 has an arc shaped cross section, and the float
  • the float 310 is provided inside the guide portion 330, and ascends and descends in only an area defined by the guide 331 if the water flows into the guide portion 330 through the inlets 333 formed between the respective guides 331.
  • a sensor guide 390 is preferably provided inside the guide portion 330 to ascend and descend along with the float 310.
  • the sensor guide 390 is provided to surround the float 310, and a first sensor 353 is provided above the sensor guide 390.
  • the float 310 ascends in the range of 8mm to 10mm from the plane portion 100a of the base 100.
  • the height of the guide 331 is preferably designed by considering the height of the float 310 and the ascending height of the float 310.
  • the sensor 350 includes the first sensor 353 and a second sensor 355, wherein the first sensor 353 ascends and descends along with the float 310, and the second sensor 355 is provided at a predetermined position to be in contact with the first sensor 353, for example, below the sump, as the float 310 ascend, so as to transmit a signal of the first sensor 353 to the microcomputer.
  • the height Hl of each of the guide ribs 213 that support the motor 211 is higher than the ascending height H2 of the float 310. This is to prevent the lower portion of the motor 13 from being submerged in the leaked washing water until the first sensor 353 is in contact with the second sensor 355 as the float 310 ascends due to the leaked washing water.
  • the motor 213 is provided below the sump 220.
  • the clamp hooks 221 are fixably hung in a stepped portion of the bottom constituting the communication hole 3a of the tub 3.
  • the base 100 is fixed to the lower portion of the tub 3 unlike the related art assembly process where the sump assembly 200 is provided through the lower portion of the base 100 after the base 100 is fixed to the tub 3.
  • Ac- cordngly in the present invention, more convenient assembly can be carried out.
  • the sump assembly 200 is doubly fixed to the base 100 and the bottom of the tub 3, it is possible to prevent the sump assembly 200 from being detached from the tub 3 or from being damaged even though impact is applied to the main body during falling test and transportation.
  • the operation of the aforementioned dish washer will be described with reference to FIGs. 8 and 9.
  • the first sensor 353 provided in the sensor guide 390 is in contact with the second sensor 355 as the water level of the washing water flown into the guide portion 330 increases.
  • the leaked washing water is drained out without reaching the maximum water level of the leaked washing water to the bottom of the motor 211.
  • the second sensor 355 transmits to the microcomputer a signal indicating the state that the first sensor 353 is in contact with the second sensor 355.
  • the microcomputer operates a drain pump (not shown) provided in the base 100 to drain out the washing water received in the base 100.
  • the driver not shown
  • the 210 is provided on the plane portion 100a of the base 100, and the base 100 is fixed to the bottom of the tub 3 in a state that the leakage sensing device 300 is provided, so that assembly between the base 100 and the tub 3 can be improved, and the driver can in advance be prevented from being operated in error and from being out of order due to the leaked washing water.
  • the dish washer according to the present invention excellent assembly among the base, the sump assembly and the tub can be obtained, and error operation and trouble of the driver can be avoided in advance even though the washing water is leaked in the base provided with the driver. Accordingly, the dish washer of the present invention can industrially be used.

Landscapes

  • Washing And Drying Of Tableware (AREA)
  • Food-Manufacturing Devices (AREA)

Abstract

Lave-vaisselle, à assemblage amélioré, permettant d'éviter une erreur et un défaut d'entraînement imputables à une fuite d'eau dans une base du lave-vaisselle. A cet effet, le lave-vaisselle comprend un bac à espace de lavage et un trou de communication au fond, une base, fixée au fond en question, avec un plan non relié à l'extérieur, un ensemble bassin établi dans le plan de cette base, et fixé au bac, sous protection du trou de communication prévu. Il existe ainsi un bassin et un système d'entraînement, et l'eau de lavage est reçue dans le bassin ; le système d'entraînement transmet une force d'entraînement au bassin, et un détecteur de fuite établi dans la base détecte un niveau d'eau pour l'eau de lavage ayant fui dans la base. Selon cette configuration, l'assemblage du lave-vaisselle peut être amélioré, et la durée de vie du système d'entraînement peut être accrue.
EP06798564A 2005-08-29 2006-08-29 Lave-vaisselle Withdrawn EP1919348A2 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
KR1020050079511A KR20070027101A (ko) 2005-08-29 2005-08-29 식기세척기 및 그 조립방법
KR1020050079509A KR101241866B1 (ko) 2005-08-29 2005-08-29 식기세척기
PCT/KR2006/003394 WO2007027036A2 (fr) 2005-08-29 2006-08-29 Lave-vaisselle

Publications (1)

Publication Number Publication Date
EP1919348A2 true EP1919348A2 (fr) 2008-05-14

Family

ID=37809299

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06798564A Withdrawn EP1919348A2 (fr) 2005-08-29 2006-08-29 Lave-vaisselle

Country Status (3)

Country Link
US (1) US20090211614A1 (fr)
EP (1) EP1919348A2 (fr)
WO (1) WO2007027036A2 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104342889A (zh) * 2014-10-30 2015-02-11 南京乐金熊猫电器有限公司 洗衣机溢水感知底托

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009000211B4 (de) * 2009-01-14 2019-05-29 BSH Hausgeräte GmbH Geschirrspülmaschine
US8833605B2 (en) * 2010-07-20 2014-09-16 Ecolab Usa Inc. Product delivery and monitoring system
EP2774527B1 (fr) 2013-03-05 2016-02-03 Vestel Beyaz Esya Sanayi Ve Ticaret A.S. Élément de fixation et dispositif de nettoyage/séchage
EP3197332B1 (fr) * 2015-05-20 2020-08-05 LG Electronics Inc. Lave-vaisselle

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US3038045A (en) * 1960-03-08 1962-06-05 Gonetz Irving Fluid leak detectors
US3335867A (en) * 1965-10-05 1967-08-15 Tappan Co Screen filter assembly
US3825373A (en) * 1973-01-02 1974-07-23 Gen Electric Dishwasher assembly
US4221547A (en) * 1978-09-18 1980-09-09 White Consolidated Industries, Inc. Resilient mount for dishwasher motor and pump assembly
DE3014427C2 (de) * 1980-04-15 1982-12-23 Bosch-Siemens Hausgeräte GmbH, 7000 Stuttgart Sicherungsvorrichtung gegen Überschwemmung bei flüssigkeitsführenden Haushaltgeräten
DE3614345C1 (de) * 1986-04-28 1987-09-24 Bosch Siemens Hausgeraete Geschirrspuelmaschine
DE3626357A1 (de) * 1986-08-04 1988-02-18 Licentia Gmbh Fluessigkeitfuehrendes geraet
US5076101A (en) * 1990-12-21 1991-12-31 Federal Industries Group Inc. Liquid level measurement system for tanks
US5299586A (en) * 1991-05-31 1994-04-05 Maytag Corporation Dishwasher tub bottom wall construction
US5118254A (en) * 1991-05-31 1992-06-02 Maytag Corporation Apparatus and method for dishwasher pump mounting
IT1298747B1 (it) * 1998-03-16 2000-02-02 Smeg Spa Macchina lavastoviglie o lavatrice con elemento di verifica della funzionalita' del dispositivo anti-allagamento
KR100457576B1 (ko) * 2002-11-28 2004-11-18 엘지전자 주식회사 식기세척기의 안전 급수밸브 어셈블리
US7032434B2 (en) * 2003-07-04 2006-04-25 Lg Electronics Inc. Water leakage detecting device in dishwasher

Non-Patent Citations (1)

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Title
See references of WO2007027036A3 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104342889A (zh) * 2014-10-30 2015-02-11 南京乐金熊猫电器有限公司 洗衣机溢水感知底托

Also Published As

Publication number Publication date
US20090211614A1 (en) 2009-08-27
WO2007027036A2 (fr) 2007-03-08
WO2007027036A3 (fr) 2007-04-26

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