DE19841372C1 - Safety device is for washing machines and dishwashers and has float-operated electrical switch to control water supply - Google Patents

Safety device is for washing machines and dishwashers and has float-operated electrical switch to control water supply

Info

Publication number
DE19841372C1
DE19841372C1 DE19841372A DE19841372A DE19841372C1 DE 19841372 C1 DE19841372 C1 DE 19841372C1 DE 19841372 A DE19841372 A DE 19841372A DE 19841372 A DE19841372 A DE 19841372A DE 19841372 C1 DE19841372 C1 DE 19841372C1
Authority
DE
Germany
Prior art keywords
float
housing
water supply
safety device
dishwashers
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 - Fee Related
Application number
DE19841372A
Other languages
German (de)
Inventor
Robert Muether
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.)
Miele und Cie KG
Original Assignee
Miele und Cie KG
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 Miele und Cie KG filed Critical Miele und Cie KG
Priority to DE19841372A priority Critical patent/DE19841372C1/en
Application granted granted Critical
Publication of DE19841372C1 publication Critical patent/DE19841372C1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H35/00Switches operated by change of a physical condition
    • H01H35/18Switches operated by change of liquid level or of liquid density, e.g. float switch
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06FLAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F39/00Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00 
    • D06F39/08Liquid supply or discharge arrangements
    • D06F39/081Safety arrangements for preventing water damage

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Casings For Electric Apparatus (AREA)

Abstract

The float (3) and the switch (4,4a) are located inside a housing (1) and are encased completely by the housing (1), which features a bolt (6,7) molded on its underside (1a). The bolt (6,7) acts in conjunction with a plate section in the water collecting tub as a bayonet fastener. A seal (9) sprayed onto the underside of the housing (1a) surrounds the plate section (11) in the locked position and adjoins the tub.

Description

Die Erfindung betrifft eine Sicherheitseinrichtung für wasserführende Haushaltgeräte, insbe­ sondere für Wasch- und Geschirrspülmaschinen, mit einer schwimmerbetätigten elektrischen . Schalteinrichtung zum Steuern des Wasserzulaufs im Falle eines Lecks, bei dem aus dem re­ gulären Wasserführungssystem des Gerätes Wasser in eine Auffangwanne gelangt, in welcher der Schwimmer und die Schalteinrichtung innerhalb eines Gehäuses angeordnet ist.The invention relates to a safety device for water-bearing household appliances, in particular especially for washing machines and dishwashers, with a float-operated electrical. Switching device for controlling the water supply in the event of a leak, in which from the right gular water supply system of the device water in a drip pan, in which the float and the switching device is arranged within a housing.

Eine solche Einrichtung ist aus der DE 41 01 763 A1 bekannt. Dabei ist in einem als Fußplatte bezeichneten Bodenblech eines Haushaltgerätes eine Vertiefung als Auffangwanne eingear­ beitet. Von dieser Vertiefung wird ein scheibenförmiger Schwimmer aufgenommen, über dem eine Schalteinrichtung plaziert ist. Die Schalteinrichtung ist durch Montageböcke mit dem Bo­ denblech verbunden. Über der Schalteinrichtung und dem Schwimmer ist ein glockenförmiges Gehäuse angeordnet und in nicht näher beschriebener Art am Bodenblech befestigt. Durch die Verwendung einer nach unten geöffneten Glocke und einer separaten Schalteinrichtung müs­ sen zur Montage der Sicherheitseinrichtung mehrere Einzelteile auf das Bodenblech gelegt bzw. auf diesem befestigt werden. Dies führt zu einer aufwendigen Fertigung. Außerdem kann die Einrichtung erst im montierten Zustand getestet werden, Defekte würden deshalb eine De­ montage erfordern.Such a device is known from DE 41 01 763 A1. One is as a base plate designated base plate of a household appliance a recess as a sump beitet. A disc-shaped float is received from this recess, above which a switching device is placed. The switching device is connected to the Bo connected the sheet metal. Above the switch and the float is a bell-shaped one Housing arranged and attached to the floor panel in a manner not described in detail. Through the Use of a bell open at the bottom and a separate switching device put several individual parts on the floor panel to assemble the safety device or attached to it. This leads to complex production. Besides, can the device can only be tested in the assembled state, defects would therefore be a De require assembly.

Bajonettverschlüsse als leicht lösbare Verbindungselemente sind allgemein bekannt (s. O. Richter, R. v. Voss: Bauelemente der Feinmechanik; 5. Auflage; Berlin; Verlag Technik, 1952; S. 177-182).Bayonet locks as easily detachable connecting elements are generally known (see above Richter, R. v. Voss: components of precision engineering; 5th edition; Berlin; Verlag Technik, 1952; Pp. 177-182).

Der Erfindung stellt sich somit das Problem, eine hinsichtlich ihrer Montage optimierte Sicher­ heitseinrichtung der eingangs genannten Art zu offenbaren.The invention thus poses the problem of ensuring that its installation is optimized to disclose unit of the type mentioned.

Erfindungsgemäß wird dieses Problem durch eine Sicherheitseinrichtung für wasserführende Haushaltgeräte mit den im Patentanspruch angegebenen Merkmalen gelöst.According to the invention, this problem is solved by a safety device for water-carrying Household appliances with the features specified in the claim solved.

Der mit der Erfindung erreichbare Vorteil besteht darin, das die gesamte Sicherheitseinrichtung als Baugruppe vorgefertigt und geprüft werden kann und anschließend ohne zusätzliche Befe­ stigungsmittel mit dem Bodenblech bzw. einer darin angeordneten Auffangwanne verbunden werden kann.The advantage achievable with the invention is that the entire safety device can be prefabricated and tested as an assembly and then without additional attachments Stigungsmittel connected to the bottom plate or a sump arranged therein can be.

Ein Ausführungsbeispiel der Erfindung ist in den Zeichnungen rein schematisch dargestellt und wird nachfolgend näher beschrieben. Es zeigtAn embodiment of the invention is shown purely schematically in the drawings and is described in more detail below. It shows

Fig. 1 die erfindungsgemäß aufgebaute Sicherheitseinrichtung im Querschnitt Fig. 1 shows the safety device constructed according to the invention in cross section

Fig. 2 die Auffangwanne von unten mit montierter Sicherheitseinrichtung Fig. 2 shows the sump from below with the safety device installed

Die in Fig. 1 dargestellte Sicherheitseinrichtung besitzt ein in axialer Richtung geteiltes, als Kuntsstoffspritzteil gefertigtes Gehäuse (1). Durch die Teilung entstehen zwei Hälften, die durch ein Filmscharnier (2) verbunden sind. Diese werden um einen scheibenförmigen Schwimmkör­ per (3) und einen Mikroschalter (4) herum geschlossen und mit einer Rastvorrichtung (5) ver­ riegelt. Der Schwimmkörper (3) besitzt an seiner Oberseite einen Betätigungsfinger (3a). Direkt über dem Betätigungsfinger (3a) befindet sich der Schaltstößel (4a) des Mikroschalters (4), der über Anschlußfahnen (4b) in nicht dargestellter Weise mit der Programmsteuerung des Haus­ haltgeräts verbunden ist.The safety device shown in FIG. 1 has a housing ( 1 ) which is divided in the axial direction and manufactured as a plastic injection-molded part. The division creates two halves, which are connected by a film hinge ( 2 ). These are closed by a disc-shaped float ( 3 ) and a microswitch ( 4 ) and locked with a locking device ( 5 ). The float ( 3 ) has an actuating finger ( 3 a) on its top. Directly above the actuating finger ( 3 a) is the switching plunger ( 4 a) of the microswitch ( 4 ), which is connected via terminal lugs ( 4 b) in a manner not shown to the program control of the household device.

An der Unterseite des Gehäuses (1) (in Fig. 2 gestrichelt dargestellt) ist ein Riegel angeformt, der aus einem Ansatzstück (6) und zwei gegenüberliegenden Flügeln (7) in Form von Kreis­ segmenten besteht. Die nach oben gerichteten Flächen der Flügel (7) besitzen Anlaufschrä­ gen (8). Um den Riegel herum ist an die Gehäuseunterseite (1a) eine Santoprenedichtung (9) angespritzt.On the underside of the housing ( 1 ) (shown in dashed lines in Fig. 2), a bolt is formed, which consists of an extension ( 6 ) and two opposite wings ( 7 ) in the form of circular segments. The upward-facing surfaces of the wings ( 7 ) have chamfers ( 8 ). A santoprene seal ( 9 ) is molded around the latch on the underside of the housing ( 1 a).

In dem nicht vollständig dargestellten Bodenblech des Haushaltgeräts ist als Auffangwan­ ne (10) eine Vertiefung geprägt. In das Zentrum der Auffangwanne ist ein Blechausschnitt (11) gestanzt, der als Riegelfalle mit dem Riegel einen Bajonettverschluß bildet. Zur Befestigung des Gehäuses (1) werden dessen Flügel (7) durch den Blechausschnitt (11) gesteckt und durch Drehung gegen den Uhrzeigersinn mit der Wanne (10) verriegelt. Dabei bildet die Santoprene­ dichtung (9) eine geschlossenen Kontur um den Blechausschnitt (11). Die Anlaufschrägen (8) bewirken ein Anpressen der Dichtung (9) an die Wanne (10), so daß ein Austreten von Wasser aus dem Blechausschnitt (11) verhindert wird. Eine an die Unterseite (1a) angeformte Na­ se (12) begrenzt den Drehweg des Gehäuses (1).In the bottom plate of the household appliance, which is not shown in full, a recess is shaped as a catch pan ( 10 ). A sheet metal cutout ( 11 ) is punched into the center of the collecting trough, which forms a bayonet lock with the bolt as a latch catch. To fasten the housing ( 1 ), its wings ( 7 ) are inserted through the sheet metal cutout ( 11 ) and locked to the tub ( 10 ) by turning counterclockwise. The Santoprene seal ( 9 ) forms a closed contour around the sheet cutout ( 11 ). The run-on bevels ( 8 ) cause the seal ( 9 ) to be pressed against the trough ( 10 ), so that water cannot escape from the sheet metal cutout ( 11 ). A molded on the underside ( 1 a) Na se ( 12 ) limits the rotation of the housing ( 1 ).

Claims (1)

Sicherheitseinrichtung für wasserführende Haushaltgeräte, insbesondere für Wasch- und Ge­ schirrspülmaschinen, mit einer schwimmerbetätigten elektrischen Schalteinrichtung (4, 4a) zum Steuern des Wasserzulaufs im Falle eines Lecks, bei dem aus dem regulären Wasserführungs­ system des Gerätes Wasser in eine Auffangwanne (10) gelangt, in welcher der Schwimmer (3) und die Schalteinrichtung (4, 4a) innerhalb eines Gehäuses (1) angeordnet ist, dadurch gekennzeichnet, daß das Gehäuse (1) den Schwimmer (3) allseitig umschließt und auf seiner Unterseite (1a) einen angeformten Riegel (6, 7) besitzt, der mit einem als Riegelfalle fungierenden Blechaus­ schnitt (11) in der Auffangwanne (10) als Bajonettverschluß zusammenwirkt, wobei eine an der Gehäuseunterseite (1a) angespritzte Dichtung (9) mit geschlossener Kontur in Verriegelungs­ stellung den Blechausschnitt (11) umgibt und an der Auffangwanne (10) anliegt.Safety device for water-carrying household appliances, especially for washing machines and dishwashers, with a float-operated electrical switching device ( 4 , 4 a) for controlling the water supply in the event of a leak, in which water flows from the regular water supply system of the device into a drip pan ( 10 ) , in which the float ( 3 ) and the switching device ( 4 , 4 a) is arranged within a housing ( 1 ), characterized in that the housing ( 1 ) surrounds the float ( 3 ) on all sides and on its underside ( 1 a) has an integrally formed bolt ( 6 , 7 ) which interacts with a sheet metal cutout acting as a bolt latch ( 11 ) in the collecting trough ( 10 ) as a bayonet catch, with a seal ( 9 ) molded onto the underside of the housing ( 1 a) with a closed contour in locking position surrounds the sheet cutout ( 11 ) and rests on the collecting trough ( 10 ).
DE19841372A 1998-09-10 1998-09-10 Safety device is for washing machines and dishwashers and has float-operated electrical switch to control water supply Expired - Fee Related DE19841372C1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19841372A DE19841372C1 (en) 1998-09-10 1998-09-10 Safety device is for washing machines and dishwashers and has float-operated electrical switch to control water supply

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19841372A DE19841372C1 (en) 1998-09-10 1998-09-10 Safety device is for washing machines and dishwashers and has float-operated electrical switch to control water supply

Publications (1)

Publication Number Publication Date
DE19841372C1 true DE19841372C1 (en) 2000-02-17

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Application Number Title Priority Date Filing Date
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DE (1) DE19841372C1 (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002007581A1 (en) * 2000-07-26 2002-01-31 Arçelik A.S. Safety device against overflow
DE10149439A1 (en) * 2001-10-07 2003-04-17 Markus Braun Operating electric switch in circuit with two electrical contacts, current source, electric load, e.g. in aquarium, involves operating switch by means of electrically conducting fluid, i.e. water
WO2005113881A1 (en) * 2004-04-23 2005-12-01 Lg Electronics Inc. Float switch of washing machine
WO2008043706A1 (en) * 2006-10-10 2008-04-17 BSH Bosch und Siemens Hausgeräte GmbH Household appliance having a collecting apparatus for leakage water
WO2008043707A1 (en) * 2006-10-10 2008-04-17 BSH Bosch und Siemens Hausgeräte GmbH Household appliance having a collecting apparatus for leakage water
DE102005018879B4 (en) * 2004-04-22 2008-04-24 Lg Electronics Inc. dishwasher
DE102005038016B4 (en) * 2005-08-09 2009-01-29 Miele & Cie. Kg Safety device for water-bearing household appliances
DE102011050271A1 (en) 2011-05-11 2012-11-15 Miele & Cie. Kg Dishwasher has collecting pot, which is provided with connecting piece for connecting circulating pump and another connecting piece for connecting drainage pump, where device is provided for manual actuation of drainage pump

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4101763A1 (en) * 1991-01-22 1992-07-23 Bosch Siemens Hausgeraete Safety device for household dishwashers etc. - has float-operated switch and collecting tub whereby float switch and tub are covered by bell-shaped top

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4101763A1 (en) * 1991-01-22 1992-07-23 Bosch Siemens Hausgeraete Safety device for household dishwashers etc. - has float-operated switch and collecting tub whereby float switch and tub are covered by bell-shaped top

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
RICHTER, O., VOSS, R. v.: Bauelemente der Feinmechanik, 5. Aufl. Berlin: Verlag Technik, 1952, S. 177-182 *

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002007581A1 (en) * 2000-07-26 2002-01-31 Arçelik A.S. Safety device against overflow
DE10149439A1 (en) * 2001-10-07 2003-04-17 Markus Braun Operating electric switch in circuit with two electrical contacts, current source, electric load, e.g. in aquarium, involves operating switch by means of electrically conducting fluid, i.e. water
DE102005018879B4 (en) * 2004-04-22 2008-04-24 Lg Electronics Inc. dishwasher
US7451773B2 (en) 2004-04-22 2008-11-18 Lg Electronics, Inc. Dishwasher
WO2005113881A1 (en) * 2004-04-23 2005-12-01 Lg Electronics Inc. Float switch of washing machine
KR101082566B1 (en) * 2004-04-23 2011-11-10 엘지전자 주식회사 Plot switch of washing machine
DE112005000090B4 (en) * 2004-04-23 2012-04-19 Lg Electronics Inc. Float switch of a washing machine
DE102005038016B4 (en) * 2005-08-09 2009-01-29 Miele & Cie. Kg Safety device for water-bearing household appliances
WO2008043706A1 (en) * 2006-10-10 2008-04-17 BSH Bosch und Siemens Hausgeräte GmbH Household appliance having a collecting apparatus for leakage water
WO2008043707A1 (en) * 2006-10-10 2008-04-17 BSH Bosch und Siemens Hausgeräte GmbH Household appliance having a collecting apparatus for leakage water
EA014416B1 (en) * 2006-10-10 2010-12-30 Бсх Бош Унд Сименс Хаусгерете Гмбх Household appliance having a collecting apparatus for leakage water
DE102011050271A1 (en) 2011-05-11 2012-11-15 Miele & Cie. Kg Dishwasher has collecting pot, which is provided with connecting piece for connecting circulating pump and another connecting piece for connecting drainage pump, where device is provided for manual actuation of drainage pump

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Legal Events

Date Code Title Description
8100 Publication of patent without earlier publication of application
D1 Grant (no unexamined application published) patent law 81
8364 No opposition during term of opposition
8320 Willingness to grant licences declared (paragraph 23)
8327 Change in the person/name/address of the patent owner

Owner name: MIELE & CIE. KG, 33332 GUETERSLOH, DE

R119 Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee