EP0958777A1 - Wasserniveausteuerungsgerät für eine Geschirrspülmaschine - Google Patents

Wasserniveausteuerungsgerät für eine Geschirrspülmaschine Download PDF

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Publication number
EP0958777A1
EP0958777A1 EP99500062A EP99500062A EP0958777A1 EP 0958777 A1 EP0958777 A1 EP 0958777A1 EP 99500062 A EP99500062 A EP 99500062A EP 99500062 A EP99500062 A EP 99500062A EP 0958777 A1 EP0958777 A1 EP 0958777A1
Authority
EP
European Patent Office
Prior art keywords
lever
float
rod
water
level
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.)
Granted
Application number
EP99500062A
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English (en)
French (fr)
Other versions
EP0958777B1 (de
Inventor
Inaki Bilbao Olea
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.)
Fagor Electrodomesticos SCL
Original Assignee
Fagor Electrodomesticos SCL
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 Fagor Electrodomesticos SCL filed Critical Fagor Electrodomesticos SCL
Publication of EP0958777A1 publication Critical patent/EP0958777A1/de
Application granted granted Critical
Publication of EP0958777B1 publication Critical patent/EP0958777B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • A47L15/42—Details
    • A47L15/4244—Water-level measuring or regulating arrangements

Definitions

  • This invention relates to the regulation of the water level in the tub of a clothes washer or dishwasher, using a float.
  • FR-2202285 discloses a device to limit the water level in the dishwasher tub, which has a float inside an auxiliary chamber, an external electrical switch and a lever moved by a float to operate the switch.
  • the auxiliary float chamber is above the regulation level and the switch cuts off supply from the electrical water valve should the level in the tub exceed a pre-set level and enter the auxiliary chamber.
  • the switch actuator has a long stroke and, to start the pump operation cycle, a third electrical contact.
  • the object of the invention is a device to regulate the water level in the tub of a dishwashing machine, as defined in claim 1.
  • the device according to the invention resolves the problem of the dynamic regulation of the water level in the tub during washing, acting together with the programmer on the water feed electrical valve while the wash motor is running.
  • the formation of foam, principally, and water turbulence in the tub during the dishwasher's dynamic functioning cause fluctuations in the water level which should not affect the operation of the electrical switch.
  • the device according to the invention also resolves this specific problem by regulating the level dynamically, using a mechanism connected to the switch operating lever, which keeps the lever in just two stable positions in relation to said switch, depending on the height of the float, and which are snap switched from a water input setting when the float is low and the microswitch is at standstill, to a setting where the microswitch is on, to keep the electrical valve closed, when the water exceeds a predetermined level.
  • the mechanism impelling the lever is connected to the lever so that the float line which is unstable because of the surface turbulence of the water does not cause the lever to oscillate, thus avoiding intermittences in the switch.
  • a further beneficial characteristic of the regulation device is the use of a single microswitch and the simplicity of the float guide and the sliding joint of the lever to a rod of the float, making the device economical in cost.
  • Figure 1 is a general view of an embodiment of the level regulation device according to the invention.
  • Figure 2 is a partial view of the device in Figure 1, showing a second float position.
  • the preferred embodiment of the device 1 to regulate the water level 2 according to the invention comprises,
  • the hollow end 8b of the lever has a guide groove 16 in which the pin 17 of the rod 3a slips.
  • Said groove 16 is dimensioned for a movement h equal to the difference h in height level 2, regulated during the dishwasher's dynamic operation, and the lower level 2b, with the tub drained.
  • the support plate 12 has the opening 13 to allow the pivoting movement 14 of the mechanism 9, 10 in the vertical direction.
  • Said mechanism comprises a connecting rod 9 surrounded by a helical spring 10 which provides thrust force F on the lever 8.
  • the connecting rod 9 has an axial opening 9b where the intermediate element 11 of the lever fits, free to move in the pivoting direction 14.
  • the position of the mechanism 9, 10 above or below the support plate 12, depends on the height of the rod 3 so that the connecting rod 9 is pushed by the lever 8 in either direction until coming into the horizontal position, then the spring 10 pushes the lever 8 in the same direction so that it reaches one of the stable positions, at the top, connecting the microswitch 6 shown in Figure 1 and cutting off the water inlet 7, or at the bottom, disconnecting the microswitch 6, shown in Figure 2, to open the water inlet.
  • the lever 8 pivots in direction 14 and moves the mechanism 9, 10 until the spring 10 is almost horizontal and is no longer able to keep the lever 8 down in the stable position so that it pushes it upward with a force F applied on the intermediate element 11, switching the stable position from bottom to top, where the microswitch 6 is engaged.
  • the contact 6a now disconnects the electrical valve and cuts off the flow of water, while contact 6b drives the programmer to time an interval, e.g. of 5 seconds, prior to switching the wash motor on.
  • the water level 2a shown in Figure 1 is a static level which is possible in the tub when the wash motor is stopped.

Landscapes

  • Washing And Drying Of Tableware (AREA)
  • Control Of Non-Positive-Displacement Pumps (AREA)
EP99500062A 1998-05-22 1999-04-21 Wasserniveausteuerungsgerät für eine Geschirrspülmaschine Expired - Lifetime EP0958777B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ES009801063A ES2155332A1 (es) 1998-05-22 1998-05-22 Regulador del nivel de agua en un lavavajillas.
ES9801063 1998-05-22

Publications (2)

Publication Number Publication Date
EP0958777A1 true EP0958777A1 (de) 1999-11-24
EP0958777B1 EP0958777B1 (de) 2003-10-22

Family

ID=8303868

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99500062A Expired - Lifetime EP0958777B1 (de) 1998-05-22 1999-04-21 Wasserniveausteuerungsgerät für eine Geschirrspülmaschine

Country Status (3)

Country Link
EP (1) EP0958777B1 (de)
DE (1) DE69912183T2 (de)
ES (2) ES1050248Y (de)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002064010A2 (en) * 2001-02-15 2002-08-22 Multibrás S.A. Eletrodomésticos A water level indicating device for a dishwasher
EP1344861A2 (de) * 2002-03-12 2003-09-17 BITRON S.p.A. Ein verstellbares und doppelt isoliertes System zur Wasserstandssteuerung in einer Haushaltsmaschine
WO2006001623A1 (en) * 2004-06-24 2006-01-05 Lg Electronics Inc. Water level sensor and dishwasher having the same
DE102005018879B4 (de) * 2004-04-22 2008-04-24 Lg Electronics Inc. Geschirrspüler
DE112005001193B4 (de) * 2004-05-25 2012-04-05 Arcelik A.S. Waschmaschine mit einer eine Überflutung verhindernden Vorrichtung
CN106637841A (zh) * 2016-12-29 2017-05-10 无锡小天鹅股份有限公司 洗衣机喷瀑组件、洗涤桶组件及洗衣机
CN109662668A (zh) * 2018-06-06 2019-04-23 广东洁诺生活电器有限公司 一种双层洗碗机
CN110881933A (zh) * 2019-12-06 2020-03-17 佛山市顺德区美的洗涤电器制造有限公司 水位保护开关、洗碗机供水装置以及洗碗机

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3436502A (en) * 1966-02-08 1969-04-01 Patinvest Ag Electric pressure-control snap switch
DE2261604A1 (de) * 1972-10-06 1974-04-11 Elbi S P A Regina Margherita Vorrichtung mit elektromagnetischer steuerung zur ueberwachung des wasserstandes bei waschmaschinen
DE4029544A1 (de) * 1990-09-18 1992-03-19 Bosch Siemens Hausgeraete Sicherheitsvorrichtung fuer wasserfuehrende haushaltgeraete
JPH06113990A (ja) * 1992-10-07 1994-04-26 Sanyo Electric Co Ltd 食器洗い機

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3296629A (en) * 1964-07-13 1967-01-10 Charles J Clark Flushing mechanism for dry tank with built in overflow passage
US4495960A (en) * 1982-09-24 1985-01-29 Whirlpool Corporation Suds return valve for automatic washers
FR2663970B1 (fr) * 1990-06-29 1997-04-04 Torcy Sa Ets Dispositif a flotteur pour la commande du remplissage d'un reservoir de chasse d'eau.
US5230361A (en) * 1992-11-17 1993-07-27 Spirax Sarco, Inc. Snap action toggle valve actuator assembly

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3436502A (en) * 1966-02-08 1969-04-01 Patinvest Ag Electric pressure-control snap switch
DE2261604A1 (de) * 1972-10-06 1974-04-11 Elbi S P A Regina Margherita Vorrichtung mit elektromagnetischer steuerung zur ueberwachung des wasserstandes bei waschmaschinen
FR2202285A1 (en) 1972-10-06 1974-05-03 Elbi Spa Washing machine water level control - with float linked to programmer by three-position micro-switch
DE4029544A1 (de) * 1990-09-18 1992-03-19 Bosch Siemens Hausgeraete Sicherheitsvorrichtung fuer wasserfuehrende haushaltgeraete
JPH06113990A (ja) * 1992-10-07 1994-04-26 Sanyo Electric Co Ltd 食器洗い機

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 018, no. 395 (C - 1229) 25 July 1994 (1994-07-25) *

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002064010A3 (en) * 2001-02-15 2003-04-10 Multibras Eletrodomesticos Sa A water level indicating device for a dishwasher
WO2002064010A2 (en) * 2001-02-15 2002-08-22 Multibrás S.A. Eletrodomésticos A water level indicating device for a dishwasher
EP1344861A2 (de) * 2002-03-12 2003-09-17 BITRON S.p.A. Ein verstellbares und doppelt isoliertes System zur Wasserstandssteuerung in einer Haushaltsmaschine
EP1344861A3 (de) * 2002-03-12 2006-08-23 BITRON S.p.A. Ein verstellbares und doppelt isoliertes System zur Wasserstandssteuerung in einer Haushaltsmaschine
DE102005018879B4 (de) * 2004-04-22 2008-04-24 Lg Electronics Inc. Geschirrspüler
US7451773B2 (en) 2004-04-22 2008-11-18 Lg Electronics, Inc. Dishwasher
DE112005001193B4 (de) * 2004-05-25 2012-04-05 Arcelik A.S. Waschmaschine mit einer eine Überflutung verhindernden Vorrichtung
WO2006001623A1 (en) * 2004-06-24 2006-01-05 Lg Electronics Inc. Water level sensor and dishwasher having the same
US7520283B2 (en) 2004-06-24 2009-04-21 Lg Electronics Inc. Water level sensor and dishwasher having the same
CN106637841A (zh) * 2016-12-29 2017-05-10 无锡小天鹅股份有限公司 洗衣机喷瀑组件、洗涤桶组件及洗衣机
CN106637841B (zh) * 2016-12-29 2023-03-31 无锡小天鹅电器有限公司 洗衣机喷瀑组件、洗涤桶组件及洗衣机
CN109662668A (zh) * 2018-06-06 2019-04-23 广东洁诺生活电器有限公司 一种双层洗碗机
CN110881933A (zh) * 2019-12-06 2020-03-17 佛山市顺德区美的洗涤电器制造有限公司 水位保护开关、洗碗机供水装置以及洗碗机
CN110881933B (zh) * 2019-12-06 2021-05-07 佛山市顺德区美的洗涤电器制造有限公司 水位保护开关、洗碗机供水装置以及洗碗机

Also Published As

Publication number Publication date
ES1050248Y (es) 2002-07-01
DE69912183T2 (de) 2004-07-15
ES1050248U (es) 2002-03-16
EP0958777B1 (de) 2003-10-22
ES2155332A1 (es) 2001-05-01
DE69912183D1 (de) 2003-11-27

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