EP2684503B1 - Steuerverfahren einer laufenden Waschmaschine, und entsprechende Waschmaschine - Google Patents

Steuerverfahren einer laufenden Waschmaschine, und entsprechende Waschmaschine Download PDF

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Publication number
EP2684503B1
EP2684503B1 EP13176222.1A EP13176222A EP2684503B1 EP 2684503 B1 EP2684503 B1 EP 2684503B1 EP 13176222 A EP13176222 A EP 13176222A EP 2684503 B1 EP2684503 B1 EP 2684503B1
Authority
EP
European Patent Office
Prior art keywords
water
washing
tank
water tank
sump
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.)
Active
Application number
EP13176222.1A
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English (en)
French (fr)
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EP2684503A3 (de
EP2684503A2 (de
Inventor
Daniel Remeur
Philippe Bonnet
Guy-Marie Bodin
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.)
Groupe Brandt SAS
Original Assignee
Groupe Brandt SAS
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Filing date
Publication date
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Publication of EP2684503A2 publication Critical patent/EP2684503A2/de
Publication of EP2684503A3 publication Critical patent/EP2684503A3/de
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Publication of EP2684503B1 publication Critical patent/EP2684503B1/de
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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
    • A47L15/0018—Controlling processes, i.e. processes to control the operation of the machine characterised by the purpose or target of the control
    • A47L15/0021—Regulation of operational steps within the washing processes, e.g. optimisation or improvement of operational steps depending from the detergent nature or from the condition of the crockery
    • A47L15/0039—Filter cleaning phases
    • 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
    • A47L15/0018—Controlling processes, i.e. processes to control the operation of the machine characterised by the purpose or target of the control
    • A47L15/0049—Detection or prevention of malfunction, including accident prevention
    • 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
    • A47L15/4202—Water filter means or strainers
    • A47L15/4208—Arrangements to prevent clogging of the filters, e.g. self-cleaning
    • 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
    • A47L15/0018—Controlling processes, i.e. processes to control the operation of the machine characterised by the purpose or target of the control
    • A47L15/0021—Regulation of operational steps within the washing processes, e.g. optimisation or improvement of operational steps depending from the detergent nature or from the condition of the crockery
    • A47L15/0031—Water discharge phases
    • 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
    • A47L15/0018—Controlling processes, i.e. processes to control the operation of the machine characterised by the purpose or target of the control
    • A47L15/0057—Cleaning of machines parts, e.g. removal of deposits like lime scale or proteins from piping or tub
    • 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
    • A47L15/4225—Arrangements or adaption of recirculation or discharge pumps
    • 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
    • A47L15/4291—Recovery arrangements, e.g. for the recovery of energy or water
    • 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
    • A47L2401/00—Automatic detection in controlling methods of washing or rinsing machines for crockery or tableware, e.g. information provided by sensors entered into controlling devices
    • A47L2401/09—Water level
    • 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
    • A47L2401/00—Automatic detection in controlling methods of washing or rinsing machines for crockery or tableware, e.g. information provided by sensors entered into controlling devices
    • A47L2401/10—Water cloudiness or dirtiness, e.g. turbidity, foaming or level of bacteria
    • 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
    • A47L2401/00—Automatic detection in controlling methods of washing or rinsing machines for crockery or tableware, e.g. information provided by sensors entered into controlling devices
    • A47L2401/20—Time, e.g. elapsed operating time
    • 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
    • A47L2501/00—Output in controlling method of washing or rinsing machines for crockery or tableware, i.e. quantities or components controlled, or actions performed by the controlling device executing the controlling method
    • A47L2501/02—Water discharge, e.g. opening or closure of discharge valve
    • 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
    • A47L2501/00—Output in controlling method of washing or rinsing machines for crockery or tableware, i.e. quantities or components controlled, or actions performed by the controlling device executing the controlling method
    • A47L2501/05—Drain or recirculation pump, e.g. regulation of the pump rotational speed or flow direction

Definitions

  • the present invention relates to a washing machine comprising a washing and / or rinsing water tank, and in particular a dishwashing machine or a washing machine.
  • It also relates to a control method in operation of a washing machine comprising a wash water tank and / or rinse.
  • the present invention relates to washing machines comprising a wash water tank and / or rinse allowing the use of this washing water and / or rinse during a subsequent phase of a cycle operation or during a subsequent operating cycle.
  • the present invention finds its application in domestic washing machines, and in particular in dishwashing machines and washing machines.
  • WO 2010 009 890 A1 which describes a dishwashing machine comprising a wash tub, a wash and / or rinse water tank, and a hydraulic water distribution circuit.
  • the hydraulic water distribution circuit connects the wash tub to the water tank.
  • the hydraulic water distribution circuit comprises a single water circulation pump serving firstly to supply water to the dishwashing means and secondly to fill with washing and / or rinsing water the water tank from a sump of the wash tub.
  • the water tank comprises a water passage opening arranged in the lower part so as to fill the water tank with water, and an overflow opening arranged in the upper part so as to evacuate overflow a surplus of water introduced into the water tank to the wash tank.
  • the overflow opening of the water tank is connected to a water inlet opening in a wall of the wash tub so as to discharge excess water from the water tank to the water sump. the washing tub by a circulation of water along a wall of the washing tub.
  • a dishwashing machine having a washing and / or rinsing water tank has the drawback of filling the water tank with washing water and / or rinsing water with a flowing stream of water. gradually from the sump of the washing tub to the water tank by means of a water circulation pump.
  • the flow of water generated by the water circulation pump supplying water means for spraying the dishes and filling with wash water and / or rinsing the water tank from a sump of the washing tub is sucked through an opening in a side wall of the sump of the tank of the washing tub.
  • the waste present in the water does not pass through a large waste filter of a filtering device arranged inside and in the central part of the sump of the washing tub, since the water circulation pump Operation during water filling of the water tank does not generate a preferential flow of water through the large waste trap of the filtration device.
  • the deposition of waste on the filter wall can accumulate during the succession of operating cycles implemented by the dishwashing machine.
  • the filter wall becomes more clogged and causes a decrease in the washing performance of the dishwashing machine.
  • WO 2012 084 492 A1 discloses a dishwasher comprising a wash tub, a wash and / or rinse water tank, a hydraulic water distribution circuit, the hydraulic water distribution circuit connecting the washing tub of the machine to wash in the water tank, a water circulation pump supplying water to water spraying means, a water recovery pump supplying water to the water tank, and a microfiltration device disposed to inside a sump of the wash tub.
  • EP 0 317 990 A1 discloses a dishwasher comprising a vessel for receiving articles to be washed, a filter system disposed in the lower portion of the vessel and having a first filter surface disposed at a level above the lower portion of the vessel , a projection system designed to draw a washing or cleaning liquid through the filter system, in the lower part of the tank, and to project this liquid into the tank via spray nozzles, means draining device for draining the washing or cleaning liquid from the lowest part of the tank, and control means designed to automatically control the projection system and the emptying means during the washing procedure, this procedure being designed to be accomplished in a series of consecutive washing steps.
  • control means are designed to perform the following actions, after one of the washing steps: control of the emptying means for draining a sufficiently large quantity of the washing liquid present in the tank, so that the first filter surface is discovered and then interrupting the draining and activating the spraying system to clean the filter system by circulating the residual amount of washing or cleaning liquid in the spraying system.
  • the present invention aims to solve the aforementioned drawbacks and to provide a control method in operation of a washing machine, and a washing machine, during a water filling step of a washing and / or rinsing water tank, cleaning a filtration wall disposed above a sump of a washing tank and avoiding the deposit of waste thereon.
  • the present invention aims, in a first aspect, a control method in operation of a washing machine comprising a washing tank, a wash water tank and / or rinse, a hydraulic distribution circuit of water, wherein said hydraulic water distribution circuit connects said washing tub of said washing machine to said water tank, said method comprising a step of filling with water of washing and / or rinsing said water tank .
  • the step of filling said water tank with water comprises a step of cleaning a filter wall disposed above a sump of said washing tank by putting into operation a pump water recovery device supplying water to said water tank and by operating a water circulation pump supplying water with at least one water spraying means so as to water said filtration wall.
  • the waste retained by a filter wall disposed above a sump of the tank of water. washing, and in particular in the alignment of a lower wall of the washing tub, are driven by a stream of water generated by the water circulation pump supplying water at least one water spraying means .
  • the waste retained by a filtration wall disposed above the sump of the washing tank is directed to a filtering device arranged inside the sump of the washing tank, and in particular to a filter to large waste from the sump filtration device.
  • the method thus makes it possible, during a step of filling a water tank with washing and / or rinsing water, to clean the filtration wall disposed above the sump of the washing tub and avoid the deposit of waste on it.
  • said circulation pump of water generates a reduced flow of water.
  • the water circulation pump generates a flow of water. water reduced so as to water at least the pieces of dishes arranged inside the washing tub while ensuring a watering of the filtering wall.
  • the cooling of the dishware disposed inside the washing tub is limited, in particular when the step of filling the water tank with water is carried out after a hot rinsing phase of a operating cycle of the washing machine, since the dishes are sprayed weakly.
  • the water pressure generated during the operation of the water circulation pump at a reduced water flow rate during the cleaning step of the filtration wall is less than the water pressure. generated during the operation of the water circulation pump at a nominal water flow rate during a washing and / or rinsing phase of an operating cycle of the washing machine.
  • This reduction in the water pressure generated during the operation of the water circulation pump during the cleaning step of the filtering wall results in a reduction in the speed of rotation of a reel. sprinkling and a decrease in the watering height from the nozzles of a spraying means.
  • the evacuation of a reduced flow of water by the water circulation pump during the cleaning step of the filtration wall can be implemented by a periodic power supply of the electric pump. water circulation.
  • said method comprises a step of detecting a water level in said sump of said wash tank so as to stop said water circulation pump as soon as a predetermined water level is reached in said sump of said washing tank.
  • the water circulation pump is operated as long as the water level in the wash tank is above the predetermined water level in the sump of the wash tub so as to water the filter wall. And the water circulation pump is stopped as soon as the predetermined water level in the sump of the washing tub is reached so as to avoid defusing the water recovery pump. Stopping the water circulation pump as soon as the predetermined water level in the sump of the washing tub is reached also stops the watering of the pieces of dishes arranged inside the tank. washing so as to limit their cooling and to impair the drying performance thereof.
  • the watering of the filter wall by the operation of the water circulation pump during the cleaning step prevents waste from settling on the filter wall while the water level down in the sump of the washing tub due to the water filling of the water tank by the operation of the water recovery pump, and in particular when the water level drops below the wall of water filtration arranged above the sump of the wash tank.
  • the step of detecting a water level in said sump of said washing tank is implemented by a water level sensor.
  • the predetermined water level in said sump of said wash tank is located below said filter wall according to the height of said washing machine.
  • said method comprises a step of stopping said water circulation pump after the flow of a predetermined duration so as to avoid defusing said water recovery pump in case failure of the detection of the predetermined water level in said sump of said wash tank.
  • the duration of watering of the filter wall by operating the water circulation pump during the cleaning step is limited in the event of failure of the water level sensor so that avoid defusing the water recovery pump supplying water to the water tank.
  • the step of cleaning said filtering wall is carried out during a first step of supplying washing water and / or rinsing said water tank by putting into operation said recovery pump. of water.
  • the present invention aims, according to a second aspect, a washing machine comprising a control unit.
  • said control unit is adapted to implement the control method according to the invention.
  • This washing machine has characteristics and advantages similar to those described above in relation to the control method according to the invention.
  • This washing machine can be a domestic dishwashing machine, or a domestic washing machine, or a domestic washing and drying machine.
  • a dishwashing machine 1 comprises a washing tub 2 whose face frontal is closed by a door (not shown).
  • the wash tub 2 may include a body formed by at least side walls.
  • the body of the washing and drying machine 1 may also include a top wall for free-standing washing and drying machines.
  • the door of the washing tub 2 makes it possible to close off an opening made in the washing tub 2.
  • This door of the washing tub 2 can thus be movable between a closed position in which it closes the opening in a sealed manner. and an open position.
  • the door of the washing tub 2 is pivotally mounted about an axis of rotation integral with the body of the dishwasher 1.
  • the washing tub 2 comprises at least one water spraying means 24 of a washing and / or rinsing bath on the pieces of crockery, as illustrated in FIG. figure 9 .
  • the washing tub 2 comprises an upper water spraying reel, a lower spraying reel and a spraying nozzle disposed on the ceiling of the washing tub 2.
  • a water of a washing and / or rinsing bath is defined as water allowing the cleaning of the dishes and circulating in a hydraulic water distribution circuit of a dishwashing machine 1.
  • the origin water from a washing and / or rinsing bath is water coming from the supply network of the dishwashing machine 1.
  • the washing tank 2 comprises a bottom wall 2a, side walls 2b, a bottom wall 2c and an upper wall 2d.
  • the bodywork of the dishwashing machine 1 is adapted to house the washing tub 2.
  • Said washing tub 2 is adapted to contain in particular the water of the washing and / or rinsing baths of the different phases of a cycle of washing. cleaning.
  • At least one dish rack (not shown) is mounted inside the washing tub 2.
  • a dish rack may be located in the upper portion of the wash tub 2 and referred to as an upper basket, and a dish rack may be located in the lower portion of the wash tub 2 and referred to as a lower basket.
  • the dish baskets can be pushed and removed by sliding them inside the washing tub 2 of the dishwashing machine 1 either after the end of a cleaning cycle for unloading the dishes or before start of a cleaning cycle for loading dishes.
  • This dishwashing machine 1 is provided with a pump for circulation of water of a washing bath and / or rinse 3 in the washing tub 2.
  • the dishwashing machine 1 operates so as to minimize the washing bath and / or rinse retained in a sump 4 formed in the bottom wall 2a of the washing tub 2.
  • the water circulation pump 3 draws water from the washing and / or rinsing bath into the sump 4 to circulate the wash and / or rinse water under pressure to the spraying means. 24. Then, the washing and / or rinsing bath returns to the sump 4.
  • This water circulation pump 3 is driven by an electric motor.
  • the sump 4 formed in the bottom wall 2a of the washing tank 2 houses a filtration device 26 so as to filter the water of a washing bath and / or rinse sucked by the water circulation pump 3 and put into circulation to the water spraying means 24, as illustrated in FIG. figure 10 .
  • the dishwashing machine 1 may also include a drain pump 27 of the wastewater of the wash and / or rinse bath.
  • the drain pump 27 draws the waste water from the washing and / or rinsing bath into the washing tank 2, and in particular into the sump 4, to evacuate the waste water from the washing and / or rinsing bath in a wastewater network (not shown) connected to the dishwashing machine 1.
  • This drain pump 27 is driven by an electric motor.
  • the filtering device 26 housed in the sump 4 makes it possible to filter the water from a washing and / or rinsing bath sucked by the water circulation pump 3, in particular during the supply of water to the water tanks. water spraying means 24. And the drain pump 27 makes it possible to evacuate the trapped dirt from the filtration device 26 during the circulation of the water from the sump 4 to a network of wastewater external.
  • the water of at least one washing and / or rinsing bath contained in the washing tank 2, and in particular in the sump 4, can be heated by a heating means 20, such as for example an electric heating resistor .
  • the dishwashing machine 1 comprises control means (not shown), and in particular at least one microcontroller, for unfolding predetermined operating cycles.
  • this dishwashing machine comprises all the necessary organs (not shown) for the operation and execution of washing, rinsing and drying cycles of the dishes.
  • the washing machine 1 comprises a water storage tank 5 from at least one washing and / or rinsing and / or drying phase for reuse at during a subsequent phase of an operating cycle or during a subsequent operating cycle implemented by said machine 1.
  • the water tank 5 is internal to the body of the washing machine 1.
  • the water tank 5 can be fixed on the washing tub 2 and / or on the body of the washing machine 1, for example along a side wall 2b of the washing tub 2.
  • the water tank 5 comprises at least a first and a second water passage opening 6, 7.
  • the washing machine 1 comprises a hydraulic water distribution circuit, wherein the hydraulic water distribution circuit connects the washing tub 2 of the washing machine to the water tank 5.
  • the washing machine 1 may comprise a mains water supply (not shown) so as to fill the washing tub 2 during the different phases of a washing cycle with water that has not been used during the washing. a previous phase of the current operating cycle or during a previous operating cycle.
  • the hydraulic water distribution circuit of the washing machine 1 can be fed with water from the network via a mains water inlet pipe (not shown) connected directly to the washing machine 1 from a water network. external by means of a solenoid valve for regulating the quantity of water necessary for the operation of the washing machine 1.
  • the hydraulic water distribution circuit of the washing machine 1 connects the washing tub 2 to the water tank 5.
  • the hydraulic water distribution circuit comprises a water recovery pump 8 so as to fill in washing water and / or rinsing at least one internal compartment 11, 16 for storing water from the water tank 5 since a sump 4 of the washing tub 2.
  • the water tank 5 is connected to the sump 4 formed in the bottom wall 2a of the washing tank 2 by means of the water recovery pump 8.
  • the water recovery pump 8 is fluidly connected on the one hand to the sump 4 and on the other hand to the water tank 5.
  • the washing machine 1 provided with a water tank 5 makes it possible to recover water from at least one washing and / or rinsing phase, to store at least a portion of this water, and then to reuse at least a portion of this water during a subsequent phase of an operating cycle or during a subsequent operating cycle carried out by said washing machine 1.
  • the water tank 5 of the washing machine 1 can store all or part of the water of at least one washing and / or rinsing phase so as to reduce by the same amount the water consumption of an operating cycle implemented by said washing machine 1.
  • a valve 9 is disposed between the water recovery pump 8 and the water tank 5.
  • the water recovery pump 8 is put into operation and the valve 9 is activated in the open position so that to circulate the water from the sump 4 to the water tank 5.
  • valve 9 is activated in the closed position so as to retain the water inside the tank of water 5 and avoid a return of water to the sump 4.
  • the water filling of the water tank 5 is ensured by the operation of the water recovery pump 8, of the activation in the open position of the valve 9 and carried out through a first opening of the water passage. 6 water formed in the lower part of the water tank 5.
  • the water filling of the water tank 5 can be carried out chronologically. This method of filling the water tank with water in time is controlled by a period of time for putting the water recovery pump 8 into operation and for opening the valve 9 through the control means of the machine. washing 1, such as for example a microcontroller.
  • the period of time of operation of the water recovery pump 8 is dependent on the water flow of said pump 8 and the capacity of the water tank 5.
  • the valve 9 mounted in the hydraulic circuit of water distribution between the pump of recovery of water 8 and the water tank 5 is closed, then the water recovery pump 8 is stopped.
  • the water reservoir 5 comprises at least a first internal pipe 10 in fluid communication with on the one hand at least one internal compartment 11 of the water tank 5 and on the other hand with the sump 4 so as to achieve a overflow device and discharge of water in excess of the water tank 5 in the sump 4, as illustrated in FIGS. Figures 5 to 9 .
  • said at least one first internal pipe 10 is also called overflow pipe.
  • first internal pipe 10 of the water reservoir 5 extending according to the height of the latter, in particular said first internal channel 10 comprising a water passage opening 12 disposed in the upper part of said water tank 5, and a second water passage opening 7 formed in the lower part of the water tank 5.
  • the water recovery pump 8 is kept at a standstill and the valve 9 is activated in position open so as to circulate the water by gravity from the water reservoir 5 to the sump 4.
  • the water recovery pump 8 being stopped is adapted to allow a flow of water to flow therethrough when the valve 9 is in the open position so as not to block the flow of water by gravity through the hydraulic water distribution circuit of the washing machine 1 from the water tank 5 to the sump 4.
  • the valve 9 located between the water recovery pump 8 and the water tank 5 can be electrically controlled or else by the pressure in the hydraulic water distribution circuit.
  • the water discharge of the water tank 5 is carried out by gravity through the water recovery pump 8 kept at a standstill, the valve 9 activated in the open position and the first water passage opening 6 arranged in the lower part of the water tank 5.
  • the water discharge from the water tank 5 to the washing tank 2 is carried out by control means of the washing machine 1, such as for example a microcontroller, controlling the opening of the valve 9 and the maintenance when the water recovery pump 8 is stopped so as to allow a flow of water by gravity from the water tank 5 into the washing tank 2, and in particular into the sump 4, through a plurality of water circulation pipes 13a, 13b, 13c, the water recovery pump 8 and the valve 9.
  • control means of the washing machine 1 such as for example a microcontroller
  • the water discharge from the water tank 5 to the sump 4 is gravity and does not require any drive of the water by a pump.
  • the water discharge of the water tank 5 is implemented by the activation in the open position of the valve 9 for a predetermined time so that the water of the water tank 5 flows by gravity into the sump 4 when the water recovery pump 8 is kept at a standstill.
  • the predetermined duration of opening of the valve 9, during the water discharge of the water tank 5, is controlled by control means of the washing machine 1, such as for example by a microcontroller.
  • the water draining of the water tank 5 is controlled by pre-programmed control means of the washing machine 1 during the recovery of water for a next phase of an operating cycle and / or for a subsequent operating cycle of said machine 1.
  • the washing and / or rinsing water is fed into the water tank 5 and then stored inside the water tank 5 at the end of a previous operating cycle implemented by the washing machine. washing 1, in particular following a rinsing step. Then, the washing and / or rinsing water stored in the water tank 5 is drained into the sump 4 at the start of a subsequent operating cycle carried out by the washing machine 1, in particular when a washing or prewashing step.
  • an additional quantity of water from an external water network is fed into the sump 4 following the draining of the water reservoir 5 into the sump 4.
  • This additional water filling is implemented by means of the valve (not shown) connecting the washing machine 1 to an external water network.
  • the water discharge of the water tank 5 can also be controlled by a user or by means of control of the washing machine 1 so as to evacuate the water from the water tank 5 to a wastewater network, especially before or after an extended period of non-use of said machine 1.
  • the first water passage opening 6 formed in the lower part of the water tank 5 serves firstly to fill the said water tank 5 with water and secondly to drain the said water tank 5.
  • the first water passage opening 6 of the water tank 5 is fluidly connected to the valve 9 and located above the maximum water level in the wash tank 2 when the water of the water bath washing and / or rinsing inside the washing tub 2 is static.
  • the water recovery pump 8 is a centrifugal pump.
  • centrifugal pumps allow the passage of a flow of water inside their body when they are not put into operation.
  • the water recovery pump 8 is located below the water tank 5.
  • the water recovery pump 8 makes it possible to fill with washing water and / or rinsing the water tank 5 from the washing tub 2.
  • the positioning of the water recovery pump 8 being a centrifugal pump is also related to its design since this water recovery pump 8 can only work when it is filled with water.
  • the positioning of the water recovery pump 8 below the water tank 5 is also related to the space available inside the bodywork of the washing machine 1 so as to optimize the dimensions of the the washing tub 2 of the washing machine 1 and the water tank 5.
  • the sump 4 is connected to the water recovery pump 8 by a first water circulation pipe 13a.
  • the water recovery pump 8 is connected to the valve 9 by a second water circulation pipe 13b.
  • the valve 9 is connected to the water tank 5 by a third water circulation pipe 13c.
  • the sump 4 comprises a first water passage opening 14 connected to the first water circulation pipe 13a so as to circulate the water from the washing tank 2 to the water tank 5, and Conversely.
  • the sump 4 also comprises a second water inlet opening 15 connected to a fourth water circulation pipe 13d so as to discharge the excess water introduced into the water tank 5 towards the sump 4.
  • fourth water circulation pipe 13d is also connected to the second water passage opening 7 formed in the lower part of the water tank 5.
  • the sump 4 formed in the lower part of the washing tank 2 also comprises a water passage opening 30 to the water circulation pump 3 and a water passage opening to the drain pump 27.
  • the water circulation pump 3 is connected at the inlet to a fifth water circulation pipe with the sump 4, and at the outlet to at least one water circulation pipe with one or more water spraying means. 24 arranged in the washing tub 2.
  • the drain pump 27 is connected at the inlet to a sixth water circulation pipe with the sump 4, and at the outlet to a water circulation pipe with a wastewater network.
  • the hydraulic water distribution circuit of the washing machine 1 comprises a first branch.
  • the first branch comprises a water circulation pump 3 so as to supply water with at least one water spraying means 24 disposed in the washing tub 2.
  • the hydraulic water distribution circuit of the washing machine 1 also comprises a second branch.
  • the second branch comprises the water recovery pump 8 so as to supply water to at least one water storage zone of the water tank 5 during the recovery of water from at least one washing and / or rinsing phase.
  • the second branch also includes a valve 9 so as to prevent a flow of water from the water tank 5 to the wash tank 2 through a water passage opening 6 formed in the water tank 5 following the supply of water to the water tank 5, and so as to allow a flow of water from the water tank 5 to the washing tub 2 through the water passage opening 6 arranged in the water tank 5 when emptying the water tank 5 to the washing tank 2.
  • the valve 9 of the second branch of the hydraulic water distribution circuit is activated in the open position during the recovery of water from at least one washing and / or rinsing phase so as to allow a flow of water from the washing tub 2 to the water tank 5.
  • the second branch of the hydraulic water distribution circuit connects the washing tank 2 to a lower wall of the water tank 5.
  • a stream of washing and / or rinsing water entering the lower part of the water tank 5 during the supply of water to the water tank 5 from the washing tank 2 makes it possible to limit the noise of flow of water when filling the water tank with water 5.
  • the hydraulic water distribution circuit of the washing machine 1 is simplified while separating the first and second branches of the hydraulic water distribution circuit.
  • the valve 9 arranged in the second branch of the hydraulic circuit makes it possible to prevent a flow of water from the water tank 5 to the washing tank 2 through a water passage opening 6 formed in the lower part of the water tank 5 following the water supply of the water tank 5, to circulate a flow of water from the water tank 5 to the washing tank 2 through the opening of the water passage 5 water 6 formed in the lower part of the water tank 5 when emptying the water tank 5 to the washing tub 2, and to circulate a flow of water from the washing tub 2 to the reservoir of water water 5 through the water passage opening 6 formed in the lower part of the water tank 5 during the recovery of water from at least one washing and / or rinsing phase.
  • the second branch of the hydraulic circuit makes it possible to circulate the washing and / or rinsing water from the washing tub 2 to the water tank 5 when filling the water tank 5 with water. of the water recovery pump 8 and activating the valve 9 in the open position, and to circulate the washing water and / or rinse from the water tank 5 to the tank of washing 2 when the water tank 5 is drained by gravity by activating the valve 9 in the open position and keeping the water recovery pump 8 at a standstill.
  • the second branch of the hydraulic circuit extends from the washing tank 2 to the bottom wall of the water tank 5 so as to minimize the length of the water circulation lines 13a, 13b, 13c connecting the washing tank 2, the water recovery pump 8, the valve 9 and the water tank 5, and so as to reduce the cost of obtaining the washing machine 1.
  • the second branch of the hydraulic water distribution circuit of the washing machine 1 allows a flow of water in a direction from the sump 4 of the washing tub 2 to the water tank 5 through the valve 9 and of the water recovery pump 8, and in another direction from the water tank 5 to the sump 4 of the washing tub 2 through the valve 9 and the water recovery pump 8.
  • a flow of water in a second direction through the second branch of the hydraulic circuit can allow to drive the solid object blocked in the area of the second branch of the hydraulic circuit.
  • the water tank 5 comprises an overflow pipe 10 formed inside the water tank 5 and placed in fluid communication on the one hand with said at least one water storage zone of the tank of water 5 and secondly with the sump 4 of the washing tub 2.
  • the filling of the water tank with washing and / or rinsing water 5 from the washing tub 2 of the washing machine 1 is carried out by activating the water recovery pump 8 without controlling the level of water inside the water tank 5.
  • the excess water is returned to the sump 4 of the washing tank 2 by means of the overflow pipe 10 formed inside the water tank 5.
  • washing machine 1 having a washing water tank and / or rinsing 5 is less expensive and easier to assemble while avoiding to irrigate the pieces of dishes contained inside the washing tub 2 by the water introduced in excess into the water tank 5 and returned from the reservoir of water 5 to the washing tub 2.
  • the second branch of the hydraulic water distribution circuit comprises a plurality of water circulation pipes 13a, 13b, 13c connecting the sump 4 of the washing tub 2 to the water tank 5, and the overflow 10 of the water tank 5 is connected to the sump 4 of the washing tank 2 by another water circulation pipe 13d so as to discharge an excess of water introduced into the water tank 5 towards the sump 4 of the washing tub 2, said other water circulation pipe 13d connecting the overflow line 10 of the water reservoir 5 to the sump 4 of the washing tub 2 is separated from the plurality of water circulation pipes 13a, 13b, 13c of the second branch of the hydraulic water distribution circuit.
  • the hydraulic water distribution circuit comprises a third branch.
  • the third branch comprises a drain pump 27 so as to evacuate water from the washing tub 2 and / or from the water tank 5 to a waste water network.
  • the hydraulic water distribution circuit of the washing machine 1 uses the first branch comprising the water circulation pump 3 to supply water with at least one water spraying means 24 arranged in the washing tub 2, the second branch comprising the water recovery pump 8 and the valve 9 for supplying water to the water reservoir 5 during the recovery of water from at least one wash and / or rinsing phase and to drain in water the water tank 5 to the sump 4 of the washing tank 2 when reusing the stored water or when the stored water is drained to an external wastewater network, and the third branch comprising the drain pump 27 for discharging the water retained in the sump 4 and / or stored in the water tank 5 to an external wastewater network.
  • the first, second and third branches of the hydraulic water distribution circuit are separated from each other.
  • the first, second and third branches of the hydraulic circuit of water distribution are only connected by the sump 4 of the washing tub 2.
  • the device for recovering water from at least one washing and / or rinsing phase comprising the water tank 5, the water recovery pump 8 and the valve 9 can be deactivated or activated through the control means of the washing machine 1, and in particular a microcontroller, so as to disable or enable the recovery of washing water and / or rinsing.
  • the hydraulic water distribution circuit of a washing machine 1 makes it possible to adapt the operating cycles of said washing machine 1 as a function of the use or not of the water tank 5 with said washing machine 1.
  • the hydraulic water distribution circuit of a dishwashing machine is adapted to be installed on a dishwashing machine without a water tank without modifying the first and third branches of the hydraulic water distribution circuit of the dishwashing machine.
  • the hydraulic water distribution circuit of such a washing machine 1 comprises a first branch configured to supply the water spraying means 24 of the washing tub 2 so as to clean the pieces of dishes arranged in baskets. dishwashing dish 2, and a second independent leg configured to supply and drain water into a water tank 5 so as to recover the washing and / or rinsing water of a phase of a cycle of operation and to reuse this recovered water during a next phase of an operating cycle or during a subsequent operating cycle.
  • the hydraulic water distribution circuit of such a washing machine 1 may or may not be equipped with a water distribution means configured to supply water to water spraying means 24 of the tank of water. washing 2, such as for example a water distributor with rotating disk.
  • the water distribution means supplies water with water spraying means 24 either alternately or simultaneously.
  • the water supply of the water spraying means 24 can be carried out by a pipe water circulation system comprising a water inlet connected at the outlet of the water circulation pump 3 and a plurality of water outlets respectively connected to a water spraying means 24.
  • the water tank 5 When filling the washing water and / or rinsing water tank 5, the water tank 5 is supplied with water through the second branch of the hydraulic water distribution circuit comprising a plurality of circulation lines water 13a, 13b, 13c fluidly connecting the sump 4, the recovery pump 8, the valve 9 and the water tank 5 so that said water recovery pump 8 supplies washing water and / or rinsing only said water tank 5.
  • the water tank 5 is emptied of water through the second branch of the hydraulic water distribution circuit in the opposite direction , where the water recovery pump 8 is at a standstill so as to allow a flow of water to flow as soon as the valve 9 mounted on the second branch of the hydraulic water distribution circuit is opened.
  • the water tank 5 comprises a venting device so as to allow the water filling and the water draining of the water tank 5.
  • the device for venting the water tank 5 comprises a first air passage opening 22 disposed above a water passage opening 12 of the overflow pipe 10 arranged inside. of the water tank 5.
  • the water tank 5 comprises a second air passage opening 19 connected to a device for venting the washing tub 2, where the first and second air passage openings 22, 19 are in position. fluidic communication.
  • the water tank 5 comprises an overflow pipe 10 connecting at least one water storage zone of the water tank 5 with the sump 4 of the washing tank 2 and a venting device. connecting said at least one water storage area with the washing tub 2, wherein the overflow line 10 and the water tank venting device 5 are separate and independent.
  • the separation of the overflow line 10 and the device for venting the water tank 5 of the washing machine 1 makes it possible to guarantee the good flow of an excess flow of water introduced. from the water tank 5 to the sump 4 of the washing tank 2 and the good flow of air between the water tank 5 and a device for venting the washing tank 2 during filling in water from the water tank 5 from the sump 4 of the washing tank 2 and during the water draining from the water tank 5 to the sump 4 of the washing tank 2.
  • the overflow line 10 of the water tank 5 makes it possible to discharge by gravity an excess of water introduced into the water tank 5 towards the sump 4 of the washing tank 2 following the filling of the water with water tank 5 beyond the maximum permissible water level in the water tank 5.
  • At least one air passage opening 19 of the water tank venting device 5 is connected to an air passage opening 31 of the washing tub 2.
  • first and second air passage openings 22, 19 are fluidly connected by an air circulation duct 21 formed inside the water tank 5.
  • the air circulation duct 21 is arranged parallel to the overflow line 10.
  • the positioning of the air circulation duct 21 with respect to the overflow pipe 10 makes it possible to minimize the space occupied inside the water tank 5 so as to optimize the size of said at least one water storage area of the water tank 5 and to maximize the amount of water stored in the water tank 5.
  • the air circulation duct 21 and the overflow duct 10 are separated by a common partition 32 formed inside the water tank 5.
  • the air circulation duct 21 is adjacent to the overflow duct 10 so as to reduce the number of partitions inside the water tank 5.
  • the first and second air passage openings 22, 19 in the water reservoir 5 are in fluid communication with at least one third air passage opening 33 in the water reservoir. 5 and opening on the outside of the water tank 5 and the washing tank 2.
  • the water tank 5 comprises a venting device for fluidically connecting the washing tub 2, the water tank 5 and the outside of the washing machine 1 so as to allow a air flow through the first, second and third air passage openings 22, 19, 33 during the various stages of an operating cycle implemented by the washing machine 1.
  • the water tank 5 comprises two third air openings 33.
  • the arrangement of the two third air openings 33 in a wall of the water tank 5 makes it possible to increase the passage cross section. air from the water tank 5 to the outside thereof and the washing tub 2 while maintaining the rigidity of the water tank 5.
  • said at least one third air opening 33 is circular in shape so as to easily close it during the verification in production of the water tank 5 sealing.
  • the second and said at least one third air passage openings 19, 33 are arranged in an internal compartment 34 of the water tank 5, the internal compartment 34 of the water tank 5 being separated from said at least one water storage area of the water tank 5.
  • the arrangement of the second and third air passage openings 19, 33 in an internal compartment 34 of the water tank 5 separates these second and third air passage openings 19, 33 from said at least one water storage zone of the water tank 5 so as to avoid a flow water from said at least one water storage zone of the water reservoir 5 through the second and third air passage openings 19, 33 respectively fluidly connected to the wash tank 2 and to the outside of the washing tub 2 of the washing machine 1.
  • the internal compartment 34 of the water tank 5 in which the second and third air passage openings 19, 33 are arranged makes it possible to retain a quantity of water introduced in excess into the water tank 5 and having overflowed by the first air passage opening 22, in particular by means of at least one bottom wall of the inner compartment 34 disposed below the second and third air passage openings 19, 33.
  • said at least one lower wall of the inner compartment 34 disposed below the second and third air passage openings 19, 33 makes it possible to retain condensas resulting from the circulation of air charged with moisture between the washing tub 2 and the device for venting the water tank 5, the internal compartment 34 of the water tank 5 is an integral part.
  • the water tank 5 comprises a partition wall 35 disposed between the second and the said at least one third air passage openings 19, 33 so as to channel a flow of water introduced through the first opening of air passage 22 to the second air passage opening 19 following a water filling of the water tank 5 beyond the water passage opening 12 of the overflow pipe 10.
  • this quantity of water can be returned to the washing tank 2 by means of the second air passage opening 19 formed in the water tank 5 and in communication fluidic with the washing tub 2.
  • the quantity of water introduced through the first air passage opening 22 is recovered in the washing tub 2 so as to avoid an overflow of water outside the washing tub 2, and particularly in an area comprising organs of the washing machine 1 supplied with electrical energy.
  • the water reservoir 5 comprises a water retaining wall 36 disposed at least partly below the second air passage opening 19 so as to channel a flow of water introduced through the first opening air passage 22 to the second air passage opening 19, then to the washing tub 2 following a water filling of the water tank 5 beyond the water passage opening 12 of the overflow pipe 10.
  • this amount of water is channeled by a water retaining wall 36 disposed at least partly below the second air passage opening 19 so as to return this quantity of water in the washing tank 2 by means of the second air passage opening 19 formed in the water tank 5 and in fluid communication with the washing tank 2.
  • an air outlet opening 23 of the air circulation duct 21 opens into the internal compartment 34 of the water tank 5, and in particular between the partition wall 35 separating the second and third passage openings. 19, 33 and the partition 32 separating the overflow pipe 10 and the air circulation duct 21 so as to prevent a flow of water towards said at least one third air opening 33 connected in a manner fluidic outside the washing tub 2 in the case where a surplus of water is introduced into the water tank 5 beyond the water passage opening 12 of the overflow pipe 10 and that a quantity of water is introduced through the first air passage opening 22.
  • the sump 4 of the washing tank 2 comprises a water inlet opening 15 fluidly connected with the overflow line 10 formed inside the water tank 5.
  • the water coming from a washing and / or rinsing bath supplying the water storage tank 5 for reuse during a subsequent operating cycle carried out by the washing machine 1 is heated water. , and preferably the water of the last rinse bath, or called the hot rinse bath water.
  • the hydraulic water distribution circuit comprises a water filtration device 26 situated upstream of the water tank 5 so as to supply the washing water and / or filtered rinsing water tank 5.
  • the water supplying the water tank 5 is filtered by the filtration device 26 since the filtration device 26 is located upstream of the water recovery pump 8.
  • the water recovery pump 8 draws the water of the washing tank 2, in particular of the sump 4, following the passage of said water in the filtration device 26 to supply water to the water tank 5 so as to avoid fouling of said water tank 5 and the second branch of the hydraulic water distribution circuit.
  • the filtration device 26 is housed at least partially inside the sump 4.
  • the filtration device 26 housed in the sump 4 also makes it possible to filter the water from a washing and / or rinsing bath sucked by the water recovery pump 8 and then circulated to the reservoir of water 5.
  • the filtration device 26 may comprise a waste trap, an intermediate filter and a micro filter.
  • the hydraulic water distribution circuit of the washing machine 1 comprises the first water circulation pipe 13a connecting a first water opening opening 14 of the sump 4 of the washing tank 2 to an inlet opening of the water 28 of the water recovery pump 8.
  • a water outlet opening 29 of the water recovery pump 8 is connected to a valve 9 by a second water circulation pipe 13b.
  • the water tank 5 comprises at least two internal compartments 11, 16.
  • a partition wall 17 is formed between a first internal compartment 11 and a second internal compartment 16.
  • first and second internal compartments 11, 16 of the water tank 5 are water storage zones formed inside the water tank 5.
  • the water reservoir 5 comprises a first shell-shaped wall 5a and a second shell-shaped wall 5b.
  • Said at least two internal compartments 11, 16 of the water tank 5 are formed by assembling the two shell-shaped walls 5a, 5b of the water tank 5.
  • the first and second internal pipes 10, 21, as well as the partition wall 17, are formed inside the water tank 5 and formed by the assembly of the two shell-shaped walls 5a, 5b of the tank. water 5.
  • the fixing of the two shell-shaped walls 5a, 5b of the water tank 5 can be carried out by welding, in particular by a method of mirror welding by means of heating blades, or by an ultrasonic welding process, or by a vibration welding process.
  • the method of fixing the two shell-shaped walls 5a, 5b of the water tank 5 is in no way limiting and may be different, in particular by screwing.
  • the first and second shell-shaped walls 5a, 5b comprise partitions respectively forming first and second portions of the first and second internal pipes 10, 21 and the partition wall 17.
  • Partitions of the first and second parts of the first and second internal pipes 10, 21 and the partition wall 17 formed in the first and second shell-shaped walls 5a, 5b cooperate together so as to form the first and second internal pipes 10, 21 and the partition 17.
  • the peripheral wall 18 of the water tank 5 comprises a double partition so as to guarantee the robustness and the tightness of the water reservoir 5 formed by the assembly of two shell-shaped walls 5a, 5b.
  • the water tank 5 is made of plastic.
  • the water tank 5 is made of polypropylene, or acrylonitrile butadiene styrene commonly called ABS.
  • the plastic material used is intended to allow the welding of the first and second shell-shaped walls 5a, 5b of the water tank 5.
  • the plastic material of the water tank 5 is defined so as to minimize the cost of obtaining it, to guarantee the dimensional stability of the water tank 5, and the compatibility with the washing water and / or rinsing introduced into the water tank 5.
  • the plastic material can also be loaded, particularly with an antibacterial agent.
  • the water reservoir 5 is thermally and / or acoustically insulated by at least one layer of material (not shown).
  • the thermal and / or acoustic insulation covering the water tank 5 can consist of one or more layers made from a single material or several materials, such as for example bitumen and / or felt.
  • the number of layers of thermal and / or acoustic insulation and the type of thermal and / or acoustic insulation are in no way limiting and may be different.
  • the thermal insulation of the water tank 5 ensures a better conservation of the heat energy of the water of at least one washing and / or rinsing phase for reuse during a subsequent operating cycle implemented by the washing machine.
  • the thermal and / or acoustic insulation may be disposed between the water tank 5 and the washing tank 2.
  • the water tank 5 may be made of an antibacterial or antifungal material so as to avoid the formation of a bio film on the inner walls thereof.
  • the material used to make the water tank 5 may comprise for example silver ions so as to avoid the formation of a bio film on the inner walls thereof.
  • the partition or partitions constituting the peripheral contour of said at minus an inner compartment 11, 16 of the water tank 5 comprise wall portions extending along the width of the water tank, wherein these wall portions extending along the width of the water tank 5 are inclined by bottom up, or vice versa, depending on the height of the water tank 5.
  • the water tank 5 is kept clean by removing the dirt deposited therein so as to avoid contamination of the washing and / or rinsing water stored in the water tank 5 during a subsequent phase of an operating cycle or during a subsequent cycle of operation of the washing machine 1.
  • the partition or partitions constituting the peripheral contour of said at least one internal compartment 11, 16 of the water tank 5 comprise the peripheral wall 18 of the water tank 5 and the wall 25 formed between the first internal compartment 11 and the first one. internal pipeline 10.
  • the operating method of operation of a washing machine 1 comprises a step of filling the wash tank with water and / or rinsing water 5.
  • the water filling step of the water tank 5 comprises a step of cleaning a filter wall 37 disposed above the sump 4 of the washing tank 2 by putting the recovery pump into operation.
  • water 8 supplying water to the water tank 5 and by operating the water circulation pump 3 supplying water with at least one water spraying means 24 so as to water the filtering wall 37.
  • the waste retained by a filtration wall 37 disposed above the sump 4 of the washing tank 2, and in particular in the alignment of a bottom wall 2a of the washing tank 2, are driven by a stream of water generated by the water circulation pump 3 supplying water at least one water spraying means 24.
  • the waste retained by a filtration wall 37 disposed above the sump 4 of the washing tank 2 is directed to a filtration device 26 arranged inside the sump 4 of the washing tub 2, and in particular to a large waste filter of the filtration device 26 of the sump 4.
  • the method thus makes it possible, during a step of filling a water tank with washing and / or rinsing water 5, to clean the filtration wall 37 disposed above the sump 4 of the wash tub. 2 and avoid the deposit of waste on it.
  • the water circulation pump 3 Preferably, during the step of cleaning the filter wall 37 by putting into operation the water recovery pump 8 and the water circulation pump 3, the water circulation pump 3 generates a reduced flow of water.
  • the water circulation pump 3 generates a reduced water flow so as to water at least the dishes arranged inside the washing tub 2 while providing a watering of the filter wall 37.
  • the cooling of the dishware disposed inside the washing tub 2 is limited, in particular when the step of filling the water tank 5 with water is carried out after a hot rinsing phase. a cycle of operation of the washing machine 1, since the dishes are sprayed weakly.
  • the water pressure generated during the operation of the water circulation pump 3 at a reduced water flow rate during the cleaning step of the filtration wall 37 is less than the pressure of the water.
  • This reduction in the water pressure generated during the operation of the water circulation pump 3 during the cleaning step of the filter wall 37 causes a decrease in the speed of rotation of a reel. 24 and a decrease in the watering height from the nozzles of a spraying means 24.
  • evacuation of a flow of water reduced by the circulation pump water 3 during the cleaning step of the filter wall 37 may be implemented by a periodic power supply of the water circulation pump 3.
  • the method comprises a step of detecting a water level in the sump 4 of the washing tub 2 so as to stop the circulation pump water 3 upon reaching a predetermined water level in the sump 4 of the washing tub 2.
  • the water circulation pump 3 is put into operation as long as the level of water in the washing tub 2 is greater than the predetermined water level in the sump 4 of the washing tub 2 so as to water the water. filter wall 37. And the water circulation pump 3 is stopped as soon as the predetermined water level in the sump 4 of the washing tub 2 is reached so as to avoid defusing the water recovery pump 8 Stopping the water circulation pump 3 as soon as the predetermined water level in the sump 4 of the washing tub 2 is reached also makes it possible to stop the watering of the pieces of dishes arranged inside. of the washing tub 2 so as to limit their cooling and to impair the drying performance thereof.
  • the watering of the filter wall 37 by operating the water circulation pump 3 during the cleaning step prevents waste from settling on the filter wall 37 while the level of water drops in the sump 4 of the washing tub 2 because of the water filling of the water tank 5 by putting into operation the water recovery pump 8, and in particular when the water level down below the filter wall 37 disposed above the sump 4 of the washing tub 2.
  • the quantity of water consumed by the water circulation pump 3 and discharged into the first branch of the hydraulic water distribution circuit, in particular to at least one water spraying means 24, returns to the sump 4 so as to raise the water level inside the sump 4 and to prevent a defusing of the water recovery pump 8.
  • the step of detecting a water level in the sump 4 of the washing tank 2 is carried out by a water level sensor 38.
  • the water level sensor 38 is a float disposed inside the sump 4, the float being associated with a magnetic detector disposed along a vertical wall of the sump 4.
  • water level sensor is not limiting and may be different, for example a pressure switch.
  • the predetermined water level in the sump 4 of the tank of washing 2 is located below the filter wall 37 according to the height of the washing machine 1.
  • the method comprises a step of stopping the water circulation pump 3 after the flow of a predetermined duration so as to avoid defusing the water recovery pump 8 in the event of failure of the detection of the water pump. predetermined water level in the sump 4 of the washing tub 2.
  • the duration of the watering of the filter wall 37 by the operation of the water circulation pump 3 during the cleaning step is limited in the event of failure of the water level sensor 38 so as to avoid defusing the water recovery pump 8 supplying water to the water tank 5.
  • the water filling step comprises a first step of supplying water for washing and / or rinsing the water tank 5 by putting into operation the water recovery pump 8.
  • the cleaning step of the filtering wall 37 is carried out during the first step of supplying water for washing and / or rinsing the water tank 5 by putting into operation the water pump. water recovery 8.
  • the first water supply step of the water tank 5 is carried out to a water level in the water tank 5 exceeding the maximum allowable water level in the tank. water 5, and a surplus of water introduced into the water tank 5 is discharged by gravity to the sump 4 of the washing tank 2 by means of the overflow line 10.
  • the step of filling the water tank 5 with water can be carried out without having recourse to a water level sensor disposed in the water tank 5 which detects a high level of water in the reservoir. water 5 so as to minimize the costs of obtaining the washing machine 1 and to simplify the assembly of the water tank 5 on the washing machine 1 by avoiding an electrical connection between a water level sensor and the control unit of the washing machine 1.
  • the water recovery pump 8 is put into operation for a predetermined duration greater than the water filling time of said at least one internal compartment. 11, 16 of the water tank 5 so that a quantity of water flows through the overflow line 10 from said at least one internal compartment 11, 16 of the water tank 5 to the sump 4 of the tank of washing 2.
  • the water tank 5 is filled to its maximum permissible water level while diluting and removing any dirt from the water tank 5 to the sump 4 of the washing tank 2 by means of the overflow pipe 10.
  • the method comprises a step of emptying the water contained in the sump 4 of the tank of water washing 2 to a wastewater network.
  • soils returned from the water tank 5 to the sump 4 of the washing tank 2 by means of the overflow line 10 are discharged to a wastewater network, in particular by means of the drain pump. 27.
  • the filling of the water tank with washing and / or rinsing water 5 from the sump 4 of the washing tank 2 is implemented. through a water passage opening 6 formed in the lower part of the water tank 5, and the evacuation of a surplus of washing and / or rinsing water from the water tank 5 towards the washing tank 2 is implemented through a water passage opening 12 formed in the upper part of the water tank 5.
  • the operation of the water recovery pump 8 is preceded by an activation in the open position of a valve 9, the valve 9 being mounted in the hydraulic circuit for distributing water between the recovery pump and the water 8 and the water tank 5.
  • a standby phase is implemented so as to evacuate air that can be retained at room temperature. inside the water recovery pump 8.
  • the waiting phase between the activation in the open position of the valve 9 and the start of operation of the water recovery pump 8 is of the order of two seconds.
  • the step of filling the water tank 5 with water is preceded by a step of filtering water from a washing and / or rinsing bath contained in the washing tank 2.
  • the water recovery pump 8 takes water from the washing tank 2, in particular the sump 4, following filtration of said water to supply water to the water tank 5 so as to avoid the fouling of the water tank 5 and the second branch of the hydraulic water distribution circuit of the washing machine 1.
  • the method also comprises a washing water evacuation step and / or rinsing the water tank 5 to the washing tank 2 by gravity through the valve 9 activated in the open position and said water recovery pump 8 kept at a standstill.
  • control method in operation of the washing machine 1 provided with a water tank 5 makes it possible to recover water from at least one washing and / or rinsing stage, to store at least a portion of this water, and then to reuse at least a portion of this water during a subsequent phase of an operating cycle or during a subsequent operating cycle implemented by said washing machine 1.
  • the water tank 5 of the washing machine 1 makes it possible to store all or part of the water of at least one washing and / or rinsing phase so as to reduce by the same amount the water consumption of a operating cycle implemented by said washing machine 1.
  • the hydraulic water distribution circuit operates a water recovery pump 8 configured to supply water to the water tank 5 during the recovery of water from at least one washing and / or rinsing phase. more than the water circulation pump 3 configured to supply water with at least one water spraying means 24 in the washing tub 2.
  • the separation of the hydraulic water distribution circuit into a first branch comprising the water circulation pump 3 and into a second branch comprising the water recovery pump 8 makes it possible to circulate water in the first and second branches with great flexibility.
  • the step of discharging water from the water tank 5 is followed by a water reuse step during a washing and / or rinsing phase of a water cycle. operation carried out by the washing machine 1.
  • the water spraying means 24 of the washing tank 2 are supplied with water by means of the water circulation pump 3 and a distribution means of water. water.
  • step of reuse of water is followed by a step of draining water from the washing tub 2 to a waste water network by means of a drain pump 27.
  • this water can be discharged to a wastewater network if the shelf life of this water in said water tank has exceeded a time limit.
  • the emptying of the water tank 5 can be controlled by a user, or by means of control of the washing machine 1 so as to evacuate the water from the water tank 5 to a wastewater network, in particular before or after an extended period of non-use of the washing machine 1.
  • the water contained in the washing tank 2 can be discharged to a wastewater network directly in the case where the user does not wish to store this water in the water tank 5 for reuse of the water.
  • control means of the washing machine 1 detects too much soil level in the water of at least one washing bath and / or rinsing.
  • the washing machine 1 comprises a control unit (not shown), said control unit comprising at least one electronic card.
  • Said at least one electronic card comprises at least one microcontroller capable of implementing predetermined operating cycles of the washing machine 1.
  • the control unit controls in particular the water circulation pump 3, the recovery pump water pump 8, the drain pump 27, the valve 9 and the water supply valve of the network so as to recover washing and / or rinsing water from the washing tub 2 in the water tank. during a cycle of operation, and to reuse the quantity of water stored in the water tank 5 during a subsequent phase of an operating cycle or during a subsequent operating cycle as previously described.
  • the waste retained by a filter wall disposed above a sump of the washing tub, and in particular in the alignment of a lower wall of the washing tub, are driven by a stream of water generated by the water circulation pump supplying water at least one means of water spraying.
  • the waste retained by a filtration wall disposed above the sump of the washing tank is directed to a filtering device arranged inside the sump of the washing tank, and in particular to a filter to large waste from the sump filtration device.
  • the method thus makes it possible, during a step of filling a water tank with washing and / or rinsing water, to clean the filtration wall disposed above the sump of the washing tub and avoid the deposit of waste on it.
  • the washing machine can be a dishwashing machine, a washing machine, or a washing and drying machine.

Landscapes

  • Detail Structures Of Washing Machines And Dryers (AREA)
  • Control Of Washing Machine And Dryer (AREA)
  • Washing And Drying Of Tableware (AREA)

Claims (8)

  1. Verfahren zur Steuerung in Betrieb einer Waschmaschine (1), welche einen Laugenbehälter (2), einen Wasch- und/oder Spülflottenbehälter (5) und einen Hydraulikschaltkreis zur Wasserverteilung umfasst, wobei der besagte Hydraulikschaltkreis zur Wasserverteilung den besagten Laugenbehälter (2) der besagten Waschmaschine (1) mit dem besagten Flottenbehälter (5) verbindet, wobei das besagte Verfahren einen Schritt des Füllens des besagten Flottenbehälters (5) mit Wasch- und/oder Spülflotte umfasst, dadurch gekennzeichnet, dass der Schritt des Füllens des besagten Flottenbehälters (5) mit Wasser einen Schritt des Reinigens einer oberhalb eines Sammelbehälters (4) des besagten Laugenbehälters (2) angeordneten Filterwand (37) durch Einschalten einer Wasserrückführpumpe (8), welche den besagten Flottenbehälter (5) mit Wasser versorgt, und durch Einschalten einer Wasserumwälzpumpe (3), welche mindestens eine Wasserbesprengungsvorrichtung (24) mit Wasser versorgt, um die besagte Filterwand (37) zu besprengen, umfasst.
  2. Verfahren zur Steuerung in Betrieb einer Waschmaschine (1) nach Anspruch 1, dadurch gekennzeichnet, dass die besagte Wasserumwälzpumpe (3) während des Schrittes des Reinigens der besagten Filterwand (37) durch Einschalten der besagten Wasserrückführpumpe (8) und der besagten Wasserumwälzpumpe (3) einen verringerten Wasservolumenstrom erzeugt.
  3. Verfahren zur Steuerung in Betrieb einer Waschmaschine (1) nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass das besagte Verfahren während des Schrittes des Reinigens der besagten Filterwand (37) einen Schritt des Erfassens eines Wasserstands in dem besagten Sammelbehälter (4) des besagten Laugenbehälters (2) umfasst, um die besagte Wasserumwälzpumpe (3) abzuschalten, sobald in dem besagten Sammelbehälter (4) des besagten Laugenbehälters (2) ein vorbestimmter Wasserstand erreicht wird.
  4. Verfahren zur Steuerung in Betrieb einer Waschmaschine (1) nach Anspruch 3, dadurch gekennzeichnet, dass der Schritt des Erfassens eines Wasserstands in dem besagten Sammelbehälter (4) des besagten Laugenbehälters (2) durch einen Wasserstandsensor (38) durchgeführt wird.
  5. Verfahren zur Steuerung in Betrieb einer Waschmaschine (1) nach Anspruch 3 oder 4, dadurch gekennzeichnet, dass der vorbestimmte Wasserstand in dem besagten Sammelbehälter (4) des besagten Laugenbehälters (2) unterhalb der besagten Filterwand (37) entsprechend der Höhe der Waschmaschine (1) angeordnet ist.
  6. Verfahren zur Steuerung in Betrieb einer Waschmaschine (1) nach einem beliebigen der Ansprüche 3 bis 5, dadurch gekennzeichnet, dass das besagte Verfahren einen Schritt des Abschaltens der besagten Wasserumwälzpumpe (3) nach Ablauf eines vorbestimmten Zeitraums umfasst, um zu verhindern, dass die besagte Wasserrückführpumpe (8) bei Ausfall der Vorrichtung zur Erfassung des vorbestimmten Wasserstands in dem besagten Sammelbehälter (4) des besagten Laugenbehälters (2) abschaltet.
  7. Verfahren zur Steuerung in Betrieb einer Waschmaschine (1) nach einem beliebigen der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass der Schritt des Reinigens der besagten Filterwand (37) während des erstens Schrittes des Versorgens des besagten Flottenbehälters (5) mit Wasch- und/oder Spülflotte durch Einschalten der besagten Wasserrückführpumpe (8) durchgeführt wird.
  8. Waschmaschine (1), dadurch gekennzeichnet, dass sie eine Steuereinheit umfasst, welche dazu ausgelegt ist, das Steuerungsverfahren gemäß einem beliebigen der Ansprüche 1 bis 7 durchzuführen.
EP13176222.1A 2012-07-12 2013-07-11 Steuerverfahren einer laufenden Waschmaschine, und entsprechende Waschmaschine Active EP2684503B1 (de)

Applications Claiming Priority (1)

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FR1201983A FR2993165B1 (fr) 2012-07-12 2012-07-12 Procede de commande en fonctionnement d'une machine a laver et machine a laver associee

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EP2684503A2 EP2684503A2 (de) 2014-01-15
EP2684503A3 EP2684503A3 (de) 2014-01-22
EP2684503B1 true EP2684503B1 (de) 2015-09-09

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11459692B2 (en) 2019-01-31 2022-10-04 Ecolab Usa Inc. Laundry machine kit to enable control of water levels, recirculation, and spray of chemistry
US11525200B2 (en) 2019-01-31 2022-12-13 Ecolab Usa Inc. Controller for a rinse water reuse system and methods of use
US11572652B2 (en) 2019-01-31 2023-02-07 Ecolab Usa Inc. Controlling water levels and detergent concentration in a wash cycle

Family Cites Families (6)

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Publication number Priority date Publication date Assignee Title
SE459554B (sv) * 1987-11-26 1989-07-17 Asea Cylinda Ab Foerfarande foer sjaelvrengoering av silsystem vid diskmaskin samt diskmaskin med organ foer genomfoerande av foerfarandet
US5320120A (en) * 1993-06-17 1994-06-14 General Electric Company Dishwasher with dual pumps
ITPN940011A1 (it) * 1994-02-25 1995-08-25 Zanussi Elettrodomestici Lavatrice con sistema di recupero dell'acqua
IT1305528B1 (it) * 1998-11-02 2001-05-09 Electrolux Zanussi Elettrodome Programma operativo per lavastoviglie
DE102008040653A1 (de) 2008-07-23 2010-01-28 BSH Bosch und Siemens Hausgeräte GmbH Wasserführendes Haushaltsgerät, insbesondere Geschirrspül- oder Waschmaschine
PL2654543T3 (pl) * 2010-12-24 2020-11-02 Arçelik Anonim Şirketi Zmywarka do naczyń zawierająca zbiornik do przechowywania

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11459692B2 (en) 2019-01-31 2022-10-04 Ecolab Usa Inc. Laundry machine kit to enable control of water levels, recirculation, and spray of chemistry
US11525200B2 (en) 2019-01-31 2022-12-13 Ecolab Usa Inc. Controller for a rinse water reuse system and methods of use
US11572652B2 (en) 2019-01-31 2023-02-07 Ecolab Usa Inc. Controlling water levels and detergent concentration in a wash cycle

Also Published As

Publication number Publication date
FR2993165B1 (fr) 2014-07-11
EP2684503A3 (de) 2014-01-22
EP2684503A2 (de) 2014-01-15
ES2555655T3 (es) 2016-01-07
FR2993165A1 (fr) 2014-01-17

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