EP0293031B1 - Dispositif de protection contre les dégâts d'eau pour lave-vaisselles - Google Patents

Dispositif de protection contre les dégâts d'eau pour lave-vaisselles Download PDF

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Publication number
EP0293031B1
EP0293031B1 EP88200948A EP88200948A EP0293031B1 EP 0293031 B1 EP0293031 B1 EP 0293031B1 EP 88200948 A EP88200948 A EP 88200948A EP 88200948 A EP88200948 A EP 88200948A EP 0293031 B1 EP0293031 B1 EP 0293031B1
Authority
EP
European Patent Office
Prior art keywords
hose
valve
water
level monitor
air
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
Application number
EP88200948A
Other languages
German (de)
English (en)
Other versions
EP0293031A2 (fr
EP0293031A3 (en
Inventor
Manfred Gumm
Josef Degel
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.)
Bauknecht Hausgeraete GmbH
Whirlpool Europe BV
Original Assignee
Bauknecht Hausgeraete GmbH
Whirlpool Europe BV
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 Bauknecht Hausgeraete GmbH, Whirlpool Europe BV filed Critical Bauknecht Hausgeraete GmbH
Publication of EP0293031A2 publication Critical patent/EP0293031A2/fr
Publication of EP0293031A3 publication Critical patent/EP0293031A3/de
Application granted granted Critical
Publication of EP0293031B1 publication Critical patent/EP0293031B1/fr
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
    • A47L15/421—Safety arrangements for preventing water damage
    • 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
    • A47L15/4214—Water supply, recirculation or discharge arrangements; Devices therefor
    • A47L15/4217—Fittings for water supply, e.g. valves or plumbing means to connect to cold or warm water lines, aquastops
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00 
    • D06F39/08—Liquid supply or discharge arrangements
    • D06F39/081—Safety arrangements for preventing water damage

Definitions

  • valves can be used in a known manner on the faucet, which, for example, close when the back pressure is too low and thus when the hose bursts Keep damage small by automatically closing the valve on the tap.
  • Another known possibility is to connect the valve, which is necessary anyway for the water supply to the machine, directly to the tap via an electrical control line lying parallel to the water hose, that is, to connect it upstream of the water hose. In such a case, the water hose is only under pressure during the feed phase; the risk of water damage is greatly reduced from the outset.
  • the water escaping here can be captured in a leakage water trough and e.g.
  • a valve can be controlled via a float that separates the supply hose from the supply network on the network side.
  • a leak within the machine or the tubing can also be detected via the leakage water trough and the float.
  • a device of the type mentioned with a monitoring device for the rinse tank liquid level which consists of at least one operational and / or security level monitor, which is reached when it is reached of the normal filling level or a safety level in the rinsing container and causes the closing of a program-dependent, machine-specific shut-off valve.
  • the operating and / or safety level monitor is connected to the flushing tank via an air trap chamber.
  • the connecting hose connected to the enveloping hose is either connected to the air boiler or directly to the washing tank and that the level monitor causes the machine's own shut-off valve and the inlet valve on the shut-off valve to close.
  • the invention has for its object to ensure beyond the damage described in DE-A-36 04 673 that the machine switches off as safely and defined when reaching a maximum permissible level as in the case of leaks in the enveloping tube.
  • Solenoid valves are among the elements that can be considered to be very reliable. However, since these valves work on a line network that is not always without additives, e.g. Sand, is, a malfunction of such valves can not be completely excluded. Another object of the invention is to largely rule out damage from such faults.
  • the second level monitor which detects the maximum level and a damage in the inlet hose, can in turn be looped in with a control contact.
  • connection according to the invention between the enveloping hose on the one hand and the wind boiler or the safety level monitor on the other hand via the specially designed and routed line connection can be used to easily ensure regeneration of the machine function after an excessive water level and to prevent the machine from being switched on again after a defect in the inlet hose will. If the level in the rinsing tank is elevated, the safety level monitor is pressurized via the air boiler and the two air lines in this function and closes the valve. As soon as the excessive liquid level has dropped, the pressure at the safety level monitor drops again so that the valve opens. The machine function is now restored. If the inlet hose is defective, leakage water first penetrates into the connecting hose and from there into the two parallel air lines.
  • Fig. 1 shows a schematic representation of an overall view of the device according to the invention in connection with a dishwasher.
  • FIG. 2 shows details of a water connection with valves and details of the connection to the dishwasher and the dishwasher-side connection.
  • Fig. 3 shows a schematic representation of a commercially available water inlet made of molded plastic with a molded component.
  • the washing compartment 2 with its front door 3 is arranged in the housing 1 of a dishwasher.
  • the rinsing tank is equipped in a known manner with a sump 4, to which two air tanks 5 and 6 are connected.
  • the housing 1 On the bottom side, the housing 1 is provided with a collecting trough 7, which has a float 8 and a switch 9 assigned.
  • the wastewater pump assigned to the sump 4 is not shown here.
  • the level monitor 10 is connected to the wind boiler 5 and switches off the water supply when the working level 11 is reached.
  • the wind boiler 6 is connected via the air line 12 and the component 13 on the one hand to the connecting hose 14 and on the other hand via the air line 15 to the level monitor 16, which responds to the maximum permissible level 17.
  • the component 13 is arranged in the machine in such a way that the connection to the level monitor 16 both from the connecting hose 14 and from the air hose 12 is above the maximum permissible level 17.
  • connection unit 19 and the double valve 20 with the magnetic coils 21 and 22 are provided, which are connected by the hose lines 23, 24.
  • the tubing consists of an inlet hose 23, an enveloping hose 24 and a protective hose 25.
  • the inlet hose 23 is tightly connected to the double valve 20.
  • the enveloping tube 24 is fastened to the connection unit 19 in such a way that the closed space between the inlet tube 23 and the enveloping tube 24 has an air connection to the connecting tube 14.
  • the envelope tube 24 is enclosed by a protective tube 25 which is fastened to the connection unit 19 and the housing 26 of the valve 20.
  • the electrical wiring 27 is laid between the enveloping tube 24 and the protective tube 25.
  • the connection unit 19 has a recess for leading out the wiring 27, which are connected to control the magnetic coils 21 and 22 with the program control device and the level monitors 10 and 16 and the contact 9 of the float switch.
  • solenoids 21 and 22 are individually controlled, e.g. the valve associated with the coil 21 is opened when the main switch is actuated.
  • the valve associated with the coil 22 is switched as a function of the program control device and the level monitor 10.
  • the level monitor 16 is acted upon with a corresponding air pressure via the wind boiler 6 and the air lines 12, 15, which partly run in the component 13, so that it switches and the magnet coil independently of the level monitor 10 21 de-excited.
  • the corresponding valve part closes.
  • the pressure at the level monitor 16 drops, so that the valve 21 can open again.
  • the component 13 according to FIG. 3 is designed as part of a water supply device in such a way that it is flat can be mounted on the side wall of the washing compartment 3.
  • a water supply device in such a way that it is flat can be mounted on the side wall of the washing compartment 3.
  • Such a unit consists of the water supply line 30, which leads via the free air gap 31 and the outlet 32 to the water softener, not shown.
  • the housing 33 forms chambers from which a certain amount of water can be passed through a valve 34 through the outlet 35 for regeneration in a salt vessel, not shown.
  • the component 13 is designed as a flat plastic body and has molded-in ribs such that the air lines 12, 15 and the connecting hose 14 can be mounted side by side.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Washing And Drying Of Tableware (AREA)

Claims (5)

  1. Dispositif de protection contre les dégâts d'eau pour un lave-vaisselle ou analogue comportant une cuve (2),
    - avec un tuyau d'arrivée (23) et un tuyau enveloppant (24) qui l'entoure à distance de façon étanche,
    - avec un contrôleur de niveau de service (10), un contrôleur de niveau de sécurité (16) et des réservoirs d'air (5, 6) coordonnés aux contrôleurs de niveau (10, 16), le tuyau enveloppant (24) débouchant à travers un tuyau de liaison (14) et un réservoir d'air dans la cuve (2) et
    - avec une vanne (20) installée en amont du tuyau d'arrivée (23) et commandée par un programmateur et les contrôleurs de niveau (10, 16) détectant le niveau d'eau dans la cuve (2),
    caractérisé en ce
    a) que le tuyau de liaison (14) est monté en série avec deux conduits d'air (12, 15) montés en parallèle, dont l'un (12) est relié au réservoir d'air (6) pour le contrôleur de niveau de sécurité (16) et dont l'autre (15) est relié à ce contrôleur de niveau de sécurité (16) lui-même,
    b) que les conduits d'air (12, 15) sont amenés à passer en partie, à la façon d'une crosse de débordement en U, au-dessus du niveau d'eau maximal (17) et
    c) que la vanne est une vanne double (20) fonctionnant en série et comportant deux éléments (21, 22) commandés électriquement, par exemple des bobines d'électroaimant, dont l'une au moins est fermée lors d'une réaction du contrôleur de niveau de sécurité (16).
  2. Dispositif selon la revendication 1, caractérisé en ce que les conduits d'air (12, 15), s'étendant parallèlement l'un à l'autre, communiquent entre eux à une extrémité par un coude en épingle à cheveux, et que le tuyau de liaison (14) est raccordé dans la zone de ce coude en épingle à cheveux.
  3. Dispositif selon la revendication 1 ou 2, caractérisé en ce que les conduits d'air (12, 15), coudés en épingle à cheveux et formant la crosse de débordement (13), sont réalisés comme une pièce ou un composant commun sur lequel les raccordements pour le réservoir d'air (6), le contrôleur de niveau de sécurité (16) et le tuyau de liaison (14) sont disposés l'un à côté de l'autre.
  4. Dispositif selon la revendication 3, caractérisé en ce que le composant commun est réalisé, ensemble avec un circuit d'arrivée d'eau (30, 31, 32) de l'appareil ménager et éventuellement aussi avec des réservoirs (33) pour le volume d'eau de régénération, sous la forme d'une unité plate pouvant être installée sur la paroi latérale de la cuve (2).
  5. Dispositif selon une des revendications 1 à 4, caractérisé en ce que la vanne (20) est entourée d'un boîtier (26) et les lignes électriques (27) sont disposées entre le tuyau enveloppant (24) et un tuyau protecteur (25) qui entoure celui-ci à distance et est relié fixe à ce boîtier (26) de la vanne par un côté et à une unité de raccordement (19) de la machine par l'autre côté.
EP88200948A 1987-05-26 1988-05-11 Dispositif de protection contre les dégâts d'eau pour lave-vaisselles Expired - Lifetime EP0293031B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19873717646 DE3717646A1 (de) 1987-05-26 1987-05-26 Vorrichtung zum schutz gegen wasserschaeden bei geschirrspuelmaschinen
DE3717646 1987-05-26

Publications (3)

Publication Number Publication Date
EP0293031A2 EP0293031A2 (fr) 1988-11-30
EP0293031A3 EP0293031A3 (en) 1989-05-24
EP0293031B1 true EP0293031B1 (fr) 1993-07-21

Family

ID=6328401

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88200948A Expired - Lifetime EP0293031B1 (fr) 1987-05-26 1988-05-11 Dispositif de protection contre les dégâts d'eau pour lave-vaisselles

Country Status (3)

Country Link
EP (1) EP0293031B1 (fr)
DE (2) DE3717646A1 (fr)
ES (1) ES2041777T3 (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3917014C2 (de) * 1989-05-24 1996-01-25 Bosch Siemens Hausgeraete Sicherheitsschlauch für den hydraulisch gesicherten Anschluß von wasserführenden Haushaltmaschinen
DE3931528A1 (de) * 1989-09-21 1991-04-11 Bosch Siemens Hausgeraete Sicherheitsschlauch fuer den hydraulisch gesicherten anschluss von wasserfuehrenden haushaltmaschinen
DE4029544A1 (de) * 1990-09-18 1992-03-19 Bosch Siemens Hausgeraete Sicherheitsvorrichtung fuer wasserfuehrende haushaltgeraete
DE4029543C2 (de) * 1990-09-18 1994-09-29 Bosch Siemens Hausgeraete Sicherheitsvorrichtung für wasserführende Haushaltgeräte, insbesondere Haushalt-Geschirrspülmaschinen
DE19548514A1 (de) * 1995-12-22 1997-06-26 Bosch Siemens Hausgeraete Wasserführendes, programmgesteuertes Haushaltgerät
DE19548513A1 (de) * 1995-12-22 1997-06-26 Bosch Siemens Hausgeraete Wasserführendes, programmgesteuertes Haushaltgerät
IT239876Y1 (it) * 1996-12-20 2001-03-13 Bitron Spa Dispositivo per il fissaggio ad un apparecchio elettrodomestico di uncondotto di connessione ad un acquastop.
DE19809114C1 (de) * 1998-03-04 1999-06-17 Whirlpool Co Sicherheitsschaltung für wasserführende Haushaltsgeräte
EP2372222B1 (fr) * 2010-03-29 2014-02-26 MT-Energie GmbH Dispositif de guidage de liquides s'écoulant pendant le fonctionnement d'installations de biogaz, de stations d'épuration ou d'installations agricoles

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2614053A1 (de) * 1976-04-01 1977-10-06 Licentia Gmbh Ueberwachungseinrichtung fuer den fluessigkeitszulauf von wasch- und geschirrspuelmaschinen
DE2817001A1 (de) * 1978-04-19 1979-10-31 Gerd Hoeffgen Schlauchverbindung
DE8330549U1 (de) * 1983-10-24 1984-01-26 Bosch-Siemens Hausgeräte GmbH, 7000 Stuttgart Einrichtung, insbesondere an geschirrspuelmaschinen, zur niveauregelung
DE8331795U1 (de) * 1983-11-05 1984-02-09 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Schlauchverbindung zwischen einer druckmittelleitung und einer geraeteseitigen zufuehrung
DE3425589A1 (de) * 1984-07-11 1986-01-23 Bosch-Siemens Hausgeräte GmbH, 7000 Stuttgart Sicherheitseinrichtung gegen ueberschwemmung bei fluessigkeitsfuehrenden haushaltsgeraeten
DE3425663A1 (de) * 1984-07-12 1986-01-16 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Sicherheitseinrichtung fuer ein haushaltsgeraet
DE3430639A1 (de) * 1984-08-21 1986-03-06 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Sicherheitseinrichtung mit zwei ventilen
DE3538604A1 (de) * 1985-10-30 1987-05-07 Licentia Gmbh Ueberwachungsvorrichtung fuer wasserfuehrende haushaltsgeraete
DE3604673A1 (de) * 1986-02-14 1987-08-20 Bauknecht Hausgeraete Vorrichtung zum schutz gegen wasserschaeden bei geschirrspuelmaschinen

Also Published As

Publication number Publication date
DE3882439D1 (de) 1993-08-26
EP0293031A2 (fr) 1988-11-30
EP0293031A3 (en) 1989-05-24
ES2041777T3 (es) 1993-12-01
DE3717646A1 (de) 1988-12-15

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