EP0958777B1 - Wasserniveausteuerungsgerät für eine Geschirrspülmaschine - Google Patents
Wasserniveausteuerungsgerät für eine Geschirrspülmaschine Download PDFInfo
- Publication number
- EP0958777B1 EP0958777B1 EP99500062A EP99500062A EP0958777B1 EP 0958777 B1 EP0958777 B1 EP 0958777B1 EP 99500062 A EP99500062 A EP 99500062A EP 99500062 A EP99500062 A EP 99500062A EP 0958777 B1 EP0958777 B1 EP 0958777B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- lever
- float
- rod
- microswitch
- 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.)
- Expired - Lifetime
Links
Images
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 A 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)
Claims (3)
- Wasserniveausteuerungsgerät (1) für das Wasserniveau (2) der Trommel einer Waschmaschine oder des Innenraums einer Geschirrspülmaschine während des dynamischen Waschvorgangs, wobei das Gerät (1) einen in der Schwimm-kammer (4) untergebrachten Schwimmer (3), einen Sschwimmerschaft (3a ), der die vertikale Bewegung des Schwimmers zwischen zwei Wasserständen (2, 2b) verursacht, und einen schwenkbaren Hebel (8) umfasst, der vom Schaft (3a ) verschoben wird, um einen elektrischen Mikroschalter (6) zu betätigen und den Wasserzufluss über das elektrische Ventil (7) zu iffnen oder zu schliessen, gekennzeichnet durch einen Zwischenmechanismus (9,10), die vom Schwimmer (3) unabhängig ist und vom Hebel (8) verschoben werden kann, bis der Hebel (8) von dem Zwischenmechanismus (9,10) verschoben wird, die ihn entweder in eine obere feste Stellung umschaltet, in der der Mikroschalter (6) betätigt wird, oder aber in eine untere feste Stellung zum Abschalten des Mikroschalters.
- Wasserniveausteuerungsgerät (1) für das Wasserniveau (2) nach Anspruch 1, bei welchem der Zwischenmechanismus (9,10) eine Pleuelstange (9) umfasst, die an dem an der Halterung (12) des Mechanismus befestigtem Ende einer Achse (9a) verschwenkt wird, sowie eine um die Pleuelstange (9) herum vorgesehene Schraubenfeder (10), welche den hebel (8) in Richtung der Schwenkbewegung verschiebt, um ein plötzliches Umschalten seiner beiden festen Stellungen zu bewirken.
- Wasserniveausteuerungsgerät (1) für das Wasserniveau (2) nach Anspruch 1, bei welchem der Schwimmer gelenkig an einem Ende (8b) des Hebels (8) befestigt wird, um einen vorgegebenen vertikalen Weg (16) zwischen den beiden Wasserständen (2, 2b) zurückzulegen, ohne den Hebel (8) zu beeinträchtigen.
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 EP0958777A1 (de) | 1999-11-24 |
EP0958777B1 true 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) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BR0100716A (pt) * | 2001-02-15 | 2002-11-05 | Multibras Eletrodomesticos Sa | Dispositivo indicador de nìvel de água para lava-louça |
ITTO20020207A1 (it) * | 2002-03-12 | 2003-09-12 | Bitron Spa | Sistema di controllo del livello dell'acqua regolabile e a doppio isolamento per apparecchio elettrodomestico. |
KR101052974B1 (ko) | 2004-04-22 | 2011-07-29 | 엘지전자 주식회사 | 식기 세척기의 에어 브레이크 구조 |
TR200606459T1 (tr) * | 2004-05-25 | 2007-04-24 | Arçeli̇k Anoni̇m Şi̇rketi̇ | Suyun taşması önlenen bir yıkama makinası |
KR20050122358A (ko) * | 2004-06-24 | 2005-12-29 | 엘지전자 주식회사 | 식기세척기의 수위감지장치 |
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 |
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 |
Family Cites Families (8)
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 |
DE1665312B2 (de) * | 1966-02-08 | 1975-11-06 | Patinvest Patent- U. Investment Ag, Chur (Schweiz) | Druckabhängiger, mehrpoliger elektrischer Schnappschalter |
IT975189B (it) | 1972-10-06 | 1974-07-20 | Elbi Spa | Dispositivo a comando elettroma gnetico per il controllo del livel lo dell acqua nelle macchine lava trici |
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. |
DE4029544A1 (de) * | 1990-09-18 | 1992-03-19 | Bosch Siemens Hausgeraete | Sicherheitsvorrichtung fuer wasserfuehrende haushaltgeraete |
JP3005370B2 (ja) * | 1992-10-07 | 2000-01-31 | 三洋電機株式会社 | 食器洗い機 |
US5230361A (en) * | 1992-11-17 | 1993-07-27 | Spirax Sarco, Inc. | Snap action toggle valve actuator assembly |
-
1998
- 1998-05-22 ES ES200102470U patent/ES1050248Y/es not_active Expired - Fee Related
- 1998-05-22 ES ES009801063A patent/ES2155332A1/es active Pending
-
1999
- 1999-04-21 DE DE69912183T patent/DE69912183T2/de not_active Expired - Fee Related
- 1999-04-21 EP EP99500062A patent/EP0958777B1/de not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
ES1050248U (es) | 2002-03-16 |
ES2155332A1 (es) | 2001-05-01 |
DE69912183D1 (de) | 2003-11-27 |
ES1050248Y (es) | 2002-07-01 |
DE69912183T2 (de) | 2004-07-15 |
EP0958777A1 (de) | 1999-11-24 |
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