EP1307129B1 - Dispositif anti-debordement - Google Patents

Dispositif anti-debordement Download PDF

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Publication number
EP1307129B1
EP1307129B1 EP01958808A EP01958808A EP1307129B1 EP 1307129 B1 EP1307129 B1 EP 1307129B1 EP 01958808 A EP01958808 A EP 01958808A EP 01958808 A EP01958808 A EP 01958808A EP 1307129 B1 EP1307129 B1 EP 1307129B1
Authority
EP
European Patent Office
Prior art keywords
float
overflow
chamber
water
safety device
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
EP01958808A
Other languages
German (de)
English (en)
Other versions
EP1307129A1 (fr
Inventor
Ferhan Ercin
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.)
Arcelik AS
Original Assignee
Arcelik AS
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 Arcelik AS filed Critical Arcelik AS
Publication of EP1307129A1 publication Critical patent/EP1307129A1/fr
Application granted granted Critical
Publication of EP1307129B1 publication Critical patent/EP1307129B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47LDOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00Washing or rinsing machines for crockery or tableware
    • A47L15/42Details
    • A47L15/421Safety arrangements for preventing water damage
    • A47L15/4212Detection of water leaks; Collection of leaked water, e.g. in the casing

Definitions

  • the present invention is related to a device that prevents the overflow of water out of the machine to be used in the washing machines wherein water is used as the fluid.
  • Overflow of water in washing machines may be caused by such factors as locating the machine in a position inclined to any direction with respect to the ground plane or the excessive amount of water taken in.
  • certain methods such as the use of pneumatic safety fitting and floats, as well as measuring the flow-rate of the excessive take-in water have been developed. These methods are discussed below.
  • a safety device comprising a tube that is in interaction with the chassis (frame) used in the dish washers.
  • Said tube is provided with an inlet at the point corresponding to the safety level of water collected in said chassis; and the pneumatic safety system is activated when water enters an air-proof chamber through said inlet, and it stops the machine.
  • This safety device determines the water level before water rises up to the safety level and activates the light-and sound-signals.
  • a float which is present in the tube is activated during the interaction and one or more switches are used to determine the location of the float.
  • EP 0951860 a device used to prevent water overflow in washing machines or dish washers.
  • This device consists of a chassis at the bottom of the machine wherein water coming from the hydraulic connections are collected in order to avoid its spilling out of any component of the machine, and a float disposed in said chassis, which actuates a micro switch when it rises due to the rising water level. Said micro switch closes the inflow valve and actuates the evacuation pump, thus avoids overflow.
  • the float, and a hole provided on the float are mentioned, said hole being closed by a diaphragm-shaped piece to make it water proof and the diaphragm-shaped piece activating the float by pushing it upwards. The pushing force exerted by the diaphragm-shaped piece on the float is transferred from the diaphragm-shaped piece to the float by means of a relay.
  • Said safety device consists of a float disposed in a chamber at a distance from the liquid container and a safety level switch which operates interactively with said float. There the float acts upon the switch which in turn, turns on the evacuation pump, and when the liquid level reaches a certain level above the expected level, the inflow valve is subsequently kept closed and when the amount of liquid attains the expected level, the float turns off the evacuation pump by means of the switch.
  • EP No. 0958777 a water level regulator used to regulate the water level in washing machines or dish washers.
  • Said device consists of a float guided in the floatation chamber, connected to the auxiliary chamber of the tub of the machine.
  • a rod provided in said auxiliary chamber moves on the vertical axis between the two water levels of the float and actuates the lever and thus acts on the micro switch.
  • the inflow valve is closed to avoid water inflow.
  • the lever is driven by an independent mechanism and operates on two main points, in connection with the micro switch.
  • a water supply and dosing device for the washing machines or dish washers. Dosing is realized by measuring the level of the liquid in the water tank provided in the chassis. Said device determines the level by determining the level of the liquid in the water tank, which is characterized in that the first float prevents the liquid from being filled in the tank by means of the first contact. Said first float is disposed in a chamber inside the device, within a body with defined borders; which is in turn placed outside the tank to which it is hydraulically connected. In this way, a rise in the water level in the tank causes the rising of the first float placed in the first chamber which leads to the actuation of the switch in order to lower the water level to a predetermined level.
  • At least a second chamber is provided in the body of said device, wherein a second float is placed to provide the activation of the micro switch by a second electrical contact.
  • the second chamber is also connected to the water tank, hydraulically.
  • the second float in the second chamber also rises, depending on the rising of the liquid level in the tank and consequently, when said liquid attains the predetermined second level, the second contact occurs.
  • the second float is spherical and the second chamber, second contact and second float are used for safety purposes in case the first contact is not switched on.
  • the threshold value required for the switching on of the second contact is at a higher level than that of the first contact.
  • the object of the present invention is to realize a device that avoids water from flowing over the machine, to be used in the water-conducting washing machines.
  • the switch can be triggered at different times and the time required for the machine to detect the undesired amount of water is shortened by obtaining the water column in a much shorter time. Moreover, frequent calls for service are avoided by preventing the machine warnings due to momentary irregularities.
  • the overflow float (1) comprises an outer float (2) and an inner float (3) placed inside the outer float chamber (5).
  • the safety device against overflow (14) is formed by disposing the over flow float (1) into the float chamber (4) wherein one or more than one chutes (13) that ensure the transfer of the undesired water which may cause an overflow due to an excessive amount of intake water or due to the mounting of the machine in an inclined manner with respect to the ground plane, are provided on its upper section, and a triggering switch (10) is provided in said float chamber (4).
  • the float chamber (4) is so formed that the outer float (2) can move freely in it and it is fixed to any point in the machine in such a manner that it can rest on the bottom of the machine/chassis.
  • the switch (10) located in the float chamber (4) at a certain height from the bottom of said chamber (4) is actuated by the rising of the outer and inner floats (2,3) which are telescopically nested in one another or by the rising of only the inner float (3).
  • the chutes (13) providing the transfer of the unwanted water that may lead to overflow, into the outer float chamber (5) are located at any point in the machine, above the float chamber said unwanted water is transferred to the outer float chamber (5) by means of the chutes (13) connected to hoses.
  • the inner float (3) is provided with discharges (12) and bosses (9). As the difference of the diameter is minimum between the inner (3) and outer (2) floats, they adhere to each other due to the surface tension occurring as the result of unwanted water coming from the chutes (13).
  • the purpose of the bosses (9) and discharges (12) is to provide a space at the bottom of the inner float (3) for the passage of the unwanted water. By virtue of these spaces (gaps), unwanted water easily enters below the inner float (3) and causes it to float. In case the difference between the diameters is too much, centering of the inner float (3) will be difficult, which in turn makes the actuation of the switch (10) more difficult.
  • Numerous discharges (12) of various shapes are provided at the regions in proximity to the side of the inner float (3) in order that unwanted water coming over the inner float (3) can easily be transferred inside the outer float chamber (5).
  • the top surface (6) of the inner float (3) is made inclined from the peak point towards the edge.
  • a hub (11) is provided on the upper surface (6) of the inner float (3), which provides the triggering of the switch (10) by conveying the buoyancy force of the water to the switch (10).
  • a drainage outlet (7) is provided at the center of the outer float chamber (5) located inside the outer float (2).
  • the bottom surface of the outer float chamber (5) is made with a gradient at a determined angle, by the manufacturer, towards the center of the outer float chamber (5) in order to avoid the unwanted water from collecting at one side and to facilitate the drainage of the unwanted water through the drainage hole (7).
  • Said drainage outlet (7) may also be formed by the holes arranged at certain angles on the side of the outer float chamber (5). However, the preferred embodiment is to place it in the middle of the outer float chamber (5).
  • the bottom surface of the outer float (2) can be inclined from the center towards the sides and the inner float (1) can be made in conformity with said form.
  • the bottom of the outer float (2) is provided with channels (8) and bosses (15). Said channels (8) at the bottom of the outer float (2) are connected to the drainage hole (7) and facilitate the evacuation of water; whereas the bosses (15) prevent the adhesion of the outer float (2) to the bottom of the machine, and are used to enable the outer float (2) to rise on the vertical plane in the float chamber (4) easily. In this way, leakage, escaped water (due to system connections and potential holes) can easily enter below the overflow float (1) and contributes it buoyancy.
  • the inner float (3) is located in the outer float chamber (5).
  • the chamber at the bottom of the machine serves as a pool for the outer float (2) and the outer float chamber (5) similarly serves as a pool for the inner float (3).
  • the switch (10) can communicate by the rising of the inner float (3) as well as of the inner and outer floats (2,3). In cases requiring the detection of the momentary overflow in a minimum time, the switch (10) is triggered by the inner float (3). When the switch (10) is triggered, the machine may stop or transmit a fault message.
  • One of such situations is causing water to collect, when the machine is located in an inclined manner, towards any direction, i.e. to the left, to the right, to and fro; and the other is excessive water intake.
  • the lateral movement of the inner float (3) located in the outer float chamber (5) is prevented by bringing the difference between the inner diameter of the outer float chamber (5) and the outer diameter of the inner float (3) to a minimum, and only the vertical, i.e. up-and down-movement of the inner float (3) within the outer float chamber (5) is allowed.
  • the outer (2) and inner (3) floats can be made in various shapes, a circular shape is preferred.
  • the overflow float (1) operates in two ways. First, upon the collecting of leakage, escaped water (due to system connections and potential holes) in the bottom/chassis of the machine, the overflow float (1) floats and triggers the switch (10) located in the float chamber (4). As the result of this operation, a service should be called for.
  • the second way of operation is related to the collecting of the unwanted water that may lead to an overflow, within the outer float chamber (5) which has a much smaller volume, causing the floating of only the inner float (3) to trigger the switch (10). If this happens due to momentary irregularities, service should not be called and the machine should be allowed to handle the irregularity by itself. As the floating of the inner float (3) during momentary irregularities is performed in a much shorter time, and consuming less water in comparison with the first operational mode, water collected in the bottom/chassis of the machine evaporates and is eliminated by the time.
  • the slopes and discharges (12) formed on the top surface (6) of the inner float unwanted water is passed to the outer float chamber (5) and by virtue of the inclined bottom surface of the latter, it is directed towards the water drainage outlet (7), to flow into the bottom of the machine.
  • the overflow float (1) may comprise an inner float (3) nested within more than one outer floats (2) of different diameters.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Level Indicators Using A Float (AREA)
  • Superstructure Of Vehicle (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Measuring Volume Flow (AREA)

Claims (7)

  1. Système de sécurité contre le débordement (14) ayant un flotteur de débordement (1), ledit flotteur de débordement (1) comprenant un flotteur extérieur (2) disposé dans une chambre de flotteur (4) et un interrupteur déclenchant (10) à une certaine hauteur à partir du bas de la chambre de flotteur (4), caractérisé en ce qu'un flotteur intérieur (3) soit placé dans une chambre extérieure de flotteur (5) du flotteur extérieur (2) et en ce que la chambre de flotteur (4) contienne un ou plusieurs toboggan (13) sur sa partie supérieure, lesdits toboggans (13) assurant la transmission de l'eau non désirée qui y aurait été prise excessivement ou qui y aurait été collectée en conséquence d'une fuite et qui pourrait donc conduire à un débordement à cause de l'installation inclinée de la machine.
  2. Système de sécurité contre le débordement (14) selon la Revendication 1, caractérisé par un flotteur intérieur (3) comprenant un moyeu (11) sur sa surface supérieure, qui assure la connexion entre le flotteur de débordement (1) et l'interrupteur (10), de nombreuses décharges (12) de diverses formes produites dans les régions à proximité du bord du flatteur intérieur (3) de façon à ce que l'eau non désirée débordant le flotteur intérieur (3) puisse facilement être transmise à la chambre extérieure de flotteur (5), des bosses (9) de diverses formes et de divers nombres produites au-dessus du flotteur intérieur (3), à l'aide desquelles l'eau peut facilement entrer dans le trou créé par les bosses entre le flotteur intérieur (3) et la chambre extérieure de flotteur (5), et par conséquent, le flotteur intérieur (3) peut librement flotter dans la chambre extérieure de flotteur (5) sans coller à sa base, et une surface supérieure (6) inclinée au point culminant vers le bord.
  3. Système de sécurité contre le débordement (14) selon la Revendication 1 ou 2, caractérisé par le flotteur extérieur (2) comprenant en dessus des bosses (15) qui empêchent l'adhésion du flotteur extérieur (2) au bas de la machine et qui sont utilisées pour activer le flotteur extérieur (2) à monter facilement au plan vertical dans la chambre de flotteur (4), des canaux (8) qui facilitent l'évacuation de l'eau et un trou de drainage (7) au centre pour le drainage de l'eau non désirée.
  4. Système de sécurité contre le débordement (14) selon les Revendications de 1 à 3, caractérisé par la chambre extérieure de flotteur (5), la surface supérieure de laquelle étant inclinée sur ses côtés avec un angle vers le trou de drainage (7) au centre.
  5. Système de sécurité contre le débordement (14) selon les Revendications de 1 à 3, caractérisé par la chambre extérieure de flotteur (5), la surface supérieure de laquelle étant inclinée avec un angle sur le centre vers les bords.
  6. Système de sécurité contre le débordement (14) selon la Revendications 5, caractérisé par la chambre extérieure de flotteur (5) avec des trous arrangés à certains trous aux régions proches des bords.
  7. Système de sécurité contre le débordement (14) selon les Revendications de 1 à 6, caractérisé par le flotteur de débordement (1) ayant un flotteur intérieur (3) niché dedans avec plusieurs flotteurs extérieurs (2) de différents diamètres.
EP01958808A 2000-07-26 2001-07-26 Dispositif anti-debordement Expired - Lifetime EP1307129B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
TR200002196 2000-07-26
TR200002196 2000-07-26
PCT/TR2001/000034 WO2002007581A1 (fr) 2000-07-26 2001-07-26 Dispositif anti-debordement

Publications (2)

Publication Number Publication Date
EP1307129A1 EP1307129A1 (fr) 2003-05-07
EP1307129B1 true EP1307129B1 (fr) 2008-02-13

Family

ID=21622620

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01958808A Expired - Lifetime EP1307129B1 (fr) 2000-07-26 2001-07-26 Dispositif anti-debordement

Country Status (6)

Country Link
EP (1) EP1307129B1 (fr)
AT (1) ATE385729T1 (fr)
AU (1) AU2001280423A1 (fr)
DE (1) DE60132779T2 (fr)
TR (1) TR200200809T1 (fr)
WO (1) WO2002007581A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITTO20060212A1 (it) * 2006-03-21 2007-09-22 Bitron Spa Sistema di sicurezza antiallagamento per macchina lavastoviglie
ES2352429T3 (es) * 2007-03-14 2011-02-18 Vestel Beyaz Esya Sanayi Ve Ticaret A.S. Dispositivo para detección de desbordamiento.
IT1401619B1 (it) * 2010-08-25 2013-07-26 Bitron Spa Sistema di sicurezza antiallagamento per apparecchi elettrodomestici di lavaggio.
TR201007807A2 (tr) * 2010-09-23 2011-02-21 Vestel Beyaz Eşya Sanayi̇ Ve Ti̇caret Anoni̇m Şi̇rketi̇@ Çamaşır yıkama makinaları için kazan çıkış aparatı.
CN108042084A (zh) * 2018-01-22 2018-05-18 佛山市顺德区美的洗涤电器制造有限公司 洗碗机的底座组件

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1298747B1 (it) * 1998-03-16 2000-02-02 Smeg Spa Macchina lavastoviglie o lavatrice con elemento di verifica della funzionalita' del dispositivo anti-allagamento
DE19841372C1 (de) * 1998-09-10 2000-02-17 Miele & Cie Sicherheitseinrichtung für wasserführende Haushaltgeräte

Also Published As

Publication number Publication date
EP1307129A1 (fr) 2003-05-07
DE60132779T2 (de) 2009-02-05
ATE385729T1 (de) 2008-03-15
DE60132779D1 (de) 2008-03-27
TR200200809T1 (tr) 2002-08-21
WO2002007581A1 (fr) 2002-01-31
AU2001280423A1 (en) 2002-02-05

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