EP1510610A2 - Procédé pour vérifier le fonctionnement des valves dans un appareil ménager utilisant de l'eau - Google Patents

Procédé pour vérifier le fonctionnement des valves dans un appareil ménager utilisant de l'eau Download PDF

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Publication number
EP1510610A2
EP1510610A2 EP20040015415 EP04015415A EP1510610A2 EP 1510610 A2 EP1510610 A2 EP 1510610A2 EP 20040015415 EP20040015415 EP 20040015415 EP 04015415 A EP04015415 A EP 04015415A EP 1510610 A2 EP1510610 A2 EP 1510610A2
Authority
EP
European Patent Office
Prior art keywords
water
valve
valves
detecting
measuring 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.)
Granted
Application number
EP20040015415
Other languages
German (de)
English (en)
Other versions
EP1510610B1 (fr
EP1510610A3 (fr
Inventor
Edwin Bolduan
Horst Wiemer
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.)
BSH Hausgeraete GmbH
Original Assignee
BSH Bosch und Siemens Hausgeraete GmbH
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 BSH Bosch und Siemens Hausgeraete GmbH filed Critical BSH Bosch und Siemens Hausgeraete GmbH
Publication of EP1510610A2 publication Critical patent/EP1510610A2/fr
Publication of EP1510610A3 publication Critical patent/EP1510610A3/fr
Application granted granted Critical
Publication of EP1510610B1 publication Critical patent/EP1510610B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • 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
    • 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
    • D06F33/00—Control of operations performed in washing machines or washer-dryers 
    • D06F33/30—Control of washing machines characterised by the purpose or target of the control 
    • D06F33/47—Responding to irregular working conditions, e.g. malfunctioning of pumps 
    • 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
    • D06F2103/00—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
    • D06F2103/18—Washing liquid level
    • 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
    • D06F2105/00—Systems or parameters controlled or affected by the control systems of washing machines, washer-dryers or laundry dryers
    • D06F2105/02—Water supply
    • 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
    • D06F2105/00—Systems or parameters controlled or affected by the control systems of washing machines, washer-dryers or laundry dryers
    • D06F2105/58—Indications or alarms to the control system or to the user
    • 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
    • D06F25/00—Washing machines with receptacles, e.g. perforated, having a rotary movement, e.g. oscillatory movement, the receptacle serving both for washing and for centrifugally separating water from the laundry and having further drying means, e.g. using hot air 
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/0318—Processes
    • Y10T137/0402—Cleaning, repairing, or assembling
    • Y10T137/0441—Repairing, securing, replacing, or servicing pipe joint, valve, or tank
    • Y10T137/0452—Detecting or repairing leak

Definitions

  • the invention is based on a method for checking valves in a program-controlled water-conducting household appliance, in particular in a washing machine or a washer-dryer, which with a control valve controlling the water supply, with a measuring device that detects the water flow and a safety feed system equipped with a shut-off valve to close the water supply in one Leakage caused by water leakage.
  • a safety device of this type is known from DE 39 17 013 C2.
  • the one described there Safety hose for a hydraulically secured connection of water-carrying Domestic appliances has to shut off the water supply in case of leakage a solenoid valve which is housed in a valve fitting directly connected to the domestic water network is.
  • the safety hose is the connection between the household appliance and the domestic water network.
  • the inflow of water via a pressure hose and is through controlled the control valve, which is located in the device immediately behind the hose connection is.
  • the pressure hose is axially spaced from a sheath enclosed, the leaking leak water absorbs and dissipates into the household appliance.
  • the shut-off valve on the domestic water network is closed by a switching signal, in the event of leakage of a Monitoring device is triggered in the household appliance.
  • Domestic appliances in which the incoming water still needs to be distributed, contain at least one control valve.
  • the blocking and control valves are hydraulically connected in series.
  • Such a system is safety-related redundant. Before starting the program and after the end of the program both valves are closed. In such an arrangement and this wiring leaks are barely recognizable on one of the two valves. Faults on the check valve, z. As by lime, in the long-term operation of the device or by defects in the control line have no effect if the control valve works smoothly.
  • the user receives no information as to whether the shut-off valve closes, ie whether the valve fulfills its function as an emergency shutdown switch for the rarely occurring case of a leakage water outlet as intended and thus can prevent greater damage to the device and the installation space.
  • the shut-off valve belonging to the safety system is opened when the program starts and remains in the open position over the entire program runtime. A leaking check valve has no effect on the program flow of the household appliance and therefore can not be detected in this phase.
  • the program-related water supply during the operation is controlled exclusively via the control valve according to the parameters specified for the respective program section.
  • pressure sensors are usually used, which detect the level in the device.
  • About the level of the water supply is regulated in such a way that when reaching a predetermined upper target level, a signal for closing the arranged in the supply line control valve is generated and that when lowering the water level below a lower switching level, the control valve is opened again.
  • the method controlled in this way can be improved according to DE 39 00 705 C1, if the water supply is based on an idealized supply curve suitable for the machine type is observed. Also in this improved method, the filling process is relatively slowly and has the further disadvantage that the inflowing amount of water is not can be limited enough and so regularly more water enters than for the Washing process is absolutely necessary. To the supplied for each program section To limit the amount of water to the necessary minimum, the incoming must Water volume independent of the fluctuating pressure conditions in the domestic water network as accurately as possible and can be limited as closely tolerated. For this and To accelerate the filling process, flow meters are increasingly being used.
  • the invention has for its object to provide a method that improves the safety of Improves inlet system described above. This is the effort to implement be kept to a minimum, in particular no additional Assemblies or parts must be used.
  • this object is achieved in that the functionality of the Control and the check valve before each startup of the household appliance before, after and / or checked during the program run.
  • the valves are evaluated measurement data obtained by means of existing devices to monitor the incoming water, z. B. the pressure sensor for level monitoring or the flow meter can be obtained.
  • the cost of implementing the method is limited on the extension of the software for the control system.
  • the washing machine shown schematically in Fig. 1 has a leak water safety hose 11, 12, by means of the screw 13 fixed to the power connector 10th connected is.
  • a leak water safety hose 11, 12 by means of the screw 13 fixed to the power connector 10th connected is.
  • shut off the Water supply via the immediately behind the power supply 10 arranged check valve. 8 this fed a corresponding closing signal.
  • This closing signal is from the monitoring device 4 triggered and via the signal line 7, the between pressure and Envelope hose 11 and 12 is guided, led to the check valve 8.
  • the monitoring device 4 is arranged in the molded in the bottom plate 2 of the washing machine housing 1 well 3 where the leak water is collected.
  • the filling of the tub 15 with the rotatably mounted laundry drum 16 is carried by the power supply 10 via the check valve 8, the pressure hose 11, the control valve 9 and the flow meter 5 and is controlled by a control device, not shown.
  • Control valves 9 are in washing machines because of the distribution required there on several Chambers of Waschstoffein Kunststoff Craft styles (not shown here) required. Such and further subsequently connected components and lines through which the water flows into the tub 15, are for the understanding of the method according to the invention without meaning and therefore also not shown.
  • the water supply is via the control valve 9, depending on the water level 18 in Lye container 15 via the pressure sensor 17 and / or in dependence on the incoming Amount of water regulated by the flow meter 5.
  • control valve 9 and the check valve 8 are closed.
  • the check valve 8 is opened with each program start and remains until the end of the program in open position.
  • the control valve 9 is only during the controlled water inlet open.
  • a first variant for realizing the method according to the invention is for functional verification the hydraulically connected in series valves 8 and 9 provided that before, after or during the program run in a phase in which the drum 16 in the Lye container 15 is not moved and the control valve 9 according to the program default is locked, the valves are mutually opened and closed and the Changing the water level is detected in the tub via the pressure sensor 18. at correspondingly long selected switching times, the defective valve 9 or 8 can be identified by comparison with a memory-stored setpoint, which consists of experiments for each device type is determined separately.
  • valve 9 For example, at first in the closed position controlled valve 9, the first valve. 8 briefly in the closed position and even during the closed position of valve 8, the valve. 9 temporarily controlled in open position. Changes the liquor level in the tub 15 clearly, then valve 8 is defective; because it should indeed according to a corresponding Control signal to be closed. In a further test phase, the valve 8 briefly in Open position and still during the open position of valve 8, the valve 9 briefly in Closed position to be controlled. If then - during the open position of the valve 8 - If the liquor level also changes significantly, the valve 9 is defective because it accordingly an applied closing signal should be closed.
  • FIGS. 2 and 3 A further preferred variant for carrying out the method according to the invention will be described below with reference to the diagrams shown in FIGS. 2 and 3.
  • V e is the total volume of water to be introduced for the program section
  • ⁇ V 1 is the amount of water entering over a specific time.
  • the water pressure is assumed to be constant.
  • control valve 9 and the shut-off valve 8 are closed in succession for a short period of time ⁇ t 9 or ⁇ t 8 during a selected water intake phase, and the change in the measured values, which are preferably recorded on the flowmeter 5, is compared with a stored setpoint value via an intelligent evaluation system ,
  • the closing time .DELTA.t for the valves 8 and 9 is to be dimensioned so that at normal water pressure in the supply network, the drop in the water flow in the flow meter can be reliably detected.
  • the filling of the tub should be interrupted as briefly as possible, that is, the closing time .DELTA.t should be so narrow that the program duration is not significantly extended overall.
  • the shooting time .DELTA.t the boundary conditions prevailing at the time of the functional check, e.g. the Water pressure in the domestic water network, adjusted automatically.
  • the extended Procedure is in the selected water inlet phase, first, the volume flow .DELTA.V measured over the period .DELTA.t. This ⁇ V should not fall below a minimum value. The minimum value is determined from trials for each washing machine model and in the program memory fixed as setpoint. If the ⁇ V / ⁇ t is below the setpoint, the Closing time .DELTA.t incremented by a unit of time and repeated the process.
  • the incoming volume per unit of time ⁇ t can be read with ⁇ V 2 .
  • ⁇ V 2 / ⁇ t is significantly smaller than ⁇ V 1 / ⁇ t in Figure 2 and should be below the predetermined setpoint in the example.
  • the process automatically controlled by the system is repeated again.
  • the closing time ⁇ t is extended by one time unit.
  • the setpoint is reached or exceeded, so that the calibration process is completed.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Control Of Washing Machine And Dryer (AREA)
  • Domestic Plumbing Installations (AREA)
  • Water Treatment By Sorption (AREA)
  • Regulation And Control Of Combustion (AREA)
EP20040015415 2003-08-26 2004-06-30 Procédé pour vérifier le fonctionnement des valves dans un appareil ménager utilisant de l'eau Not-in-force EP1510610B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10339252 2003-08-26
DE2003139252 DE10339252A1 (de) 2003-08-26 2003-08-26 Verfahren zum Überprüfen von Ventilen in einem programmgesteuerten wasserführenden Haushaltgerät

Publications (3)

Publication Number Publication Date
EP1510610A2 true EP1510610A2 (fr) 2005-03-02
EP1510610A3 EP1510610A3 (fr) 2008-08-27
EP1510610B1 EP1510610B1 (fr) 2010-09-01

Family

ID=34089195

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20040015415 Not-in-force EP1510610B1 (fr) 2003-08-26 2004-06-30 Procédé pour vérifier le fonctionnement des valves dans un appareil ménager utilisant de l'eau

Country Status (4)

Country Link
US (1) US7225056B2 (fr)
EP (1) EP1510610B1 (fr)
AT (1) ATE479790T1 (fr)
DE (2) DE10339252A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008000615A1 (fr) * 2006-06-29 2008-01-03 BSH Bosch und Siemens Hausgeräte GmbH Procédé de protection contre des dommages dus à une fuite d'eau et lave-linge à chargement frontal permettant la mise en oeuvre dudit procédé
EP3124672A1 (fr) * 2015-07-31 2017-02-01 Electrolux Appliances Aktiebolag Machine à laver le linge
CN106687641A (zh) * 2014-08-06 2017-05-17 伊莱克斯家用电器股份公司 用于操作洗衣机的方法和洗衣机
EP3315650A1 (fr) * 2016-10-27 2018-05-02 Miele & Cie. KG Système d'alimentation en eau et système d'incorporation de la composition détergente pour un lave-linge
CN108732077A (zh) * 2018-05-31 2018-11-02 四川大学 一种发动机油道管路渗透检测方法

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US7970494B2 (en) * 2002-09-23 2011-06-28 Liquidbreaker, Llc Systems and methods for monitoring relief valve drain in hot water Heater
DE102007014386A1 (de) * 2007-03-26 2008-10-02 Scotsman Beverage Systems Gmbh Verfahren und Einrichtung zur Steuerung eines wasserführenden Geräts, insbesondere zur Vermeidung von Wasserschäden
BE1017973A3 (nl) * 2008-01-29 2010-02-02 Abuhagiar Hisham Waterlek detectie inrichting.
DE102009027690A1 (de) 2009-07-14 2011-01-20 BSH Bosch und Siemens Hausgeräte GmbH Wasserführendes Haushaltsgerät
DE102009028588A1 (de) * 2009-08-17 2011-02-24 BSH Bosch und Siemens Hausgeräte GmbH Wasserführendes Hausgerät
US8439062B1 (en) * 2009-08-20 2013-05-14 Keith J. Ziegenbein Flood preventing system, and method of use
US8701703B2 (en) * 2010-08-09 2014-04-22 Sensus Usa Inc. Method and apparatus for controlling gas flow via a gas shut-off valve assembly
US9074770B2 (en) 2011-12-15 2015-07-07 Honeywell International Inc. Gas valve with electronic valve proving system
US8905063B2 (en) 2011-12-15 2014-12-09 Honeywell International Inc. Gas valve with fuel rate monitor
US9851103B2 (en) 2011-12-15 2017-12-26 Honeywell International Inc. Gas valve with overpressure diagnostics
US8947242B2 (en) 2011-12-15 2015-02-03 Honeywell International Inc. Gas valve with valve leakage test
US9995486B2 (en) 2011-12-15 2018-06-12 Honeywell International Inc. Gas valve with high/low gas pressure detection
US8899264B2 (en) 2011-12-15 2014-12-02 Honeywell International Inc. Gas valve with electronic proof of closure system
US9846440B2 (en) 2011-12-15 2017-12-19 Honeywell International Inc. Valve controller configured to estimate fuel comsumption
US8839815B2 (en) 2011-12-15 2014-09-23 Honeywell International Inc. Gas valve with electronic cycle counter
US9835265B2 (en) 2011-12-15 2017-12-05 Honeywell International Inc. Valve with actuator diagnostics
US9557059B2 (en) 2011-12-15 2017-01-31 Honeywell International Inc Gas valve with communication link
US10422531B2 (en) 2012-09-15 2019-09-24 Honeywell International Inc. System and approach for controlling a combustion chamber
US9234661B2 (en) 2012-09-15 2016-01-12 Honeywell International Inc. Burner control system
EP2868970B1 (fr) 2013-10-29 2020-04-22 Honeywell Technologies Sarl Dispositif de régulation
US10024439B2 (en) 2013-12-16 2018-07-17 Honeywell International Inc. Valve over-travel mechanism
US9841122B2 (en) 2014-09-09 2017-12-12 Honeywell International Inc. Gas valve with electronic valve proving system
US9645584B2 (en) 2014-09-17 2017-05-09 Honeywell International Inc. Gas valve with electronic health monitoring
US10503181B2 (en) 2016-01-13 2019-12-10 Honeywell International Inc. Pressure regulator
CN107034632B (zh) * 2016-02-03 2020-01-14 青岛海尔洗衣机有限公司 洗衣机耗水量监测方法、洗衣机及洗衣机系统
US10564062B2 (en) 2016-10-19 2020-02-18 Honeywell International Inc. Human-machine interface for gas valve
CN109797524B (zh) * 2017-11-17 2022-08-16 青岛海尔洗衣机有限公司 一种洗涤剂自动投放方法及洗衣机
US11073281B2 (en) 2017-12-29 2021-07-27 Honeywell International Inc. Closed-loop programming and control of a combustion appliance
US10794049B2 (en) 2018-01-24 2020-10-06 ENASI Industries Inc. Fluid management/control system
US10697815B2 (en) 2018-06-09 2020-06-30 Honeywell International Inc. System and methods for mitigating condensation in a sensor module

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DE4402913A1 (de) * 1993-02-08 1994-08-11 Elbi Int Spa Wartungssystem eines Sicherheitsventils eines elektrischen Haushaltsgeräts
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DE19548507A1 (de) * 1995-12-22 1997-06-26 Bosch Siemens Hausgeraete Wasserführendes, programmgesteuertes Haushaltgerät
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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008000615A1 (fr) * 2006-06-29 2008-01-03 BSH Bosch und Siemens Hausgeräte GmbH Procédé de protection contre des dommages dus à une fuite d'eau et lave-linge à chargement frontal permettant la mise en oeuvre dudit procédé
CN106687641A (zh) * 2014-08-06 2017-05-17 伊莱克斯家用电器股份公司 用于操作洗衣机的方法和洗衣机
CN106687641B (zh) * 2014-08-06 2019-01-08 伊莱克斯家用电器股份公司 用于操作洗衣机的方法和洗衣机
EP3124672A1 (fr) * 2015-07-31 2017-02-01 Electrolux Appliances Aktiebolag Machine à laver le linge
WO2017021030A1 (fr) * 2015-07-31 2017-02-09 Electrolux Appliances Aktiebolag Machine à laver le linge
EP3315650A1 (fr) * 2016-10-27 2018-05-02 Miele & Cie. KG Système d'alimentation en eau et système d'incorporation de la composition détergente pour un lave-linge
CN108732077A (zh) * 2018-05-31 2018-11-02 四川大学 一种发动机油道管路渗透检测方法
CN108732077B (zh) * 2018-05-31 2023-09-19 四川大学 一种发动机油道管路渗透检测方法

Also Published As

Publication number Publication date
ATE479790T1 (de) 2010-09-15
US7225056B2 (en) 2007-05-29
EP1510610B1 (fr) 2010-09-01
DE10339252A1 (de) 2005-03-31
DE502004011603D1 (de) 2010-10-14
US20050049756A1 (en) 2005-03-03
EP1510610A3 (fr) 2008-08-27

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