EP2486837B1 - Lave-vaisselle et procédé de fonctionnement de celui-ci - Google Patents

Lave-vaisselle et procédé de fonctionnement de celui-ci Download PDF

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Publication number
EP2486837B1
EP2486837B1 EP12152384.9A EP12152384A EP2486837B1 EP 2486837 B1 EP2486837 B1 EP 2486837B1 EP 12152384 A EP12152384 A EP 12152384A EP 2486837 B1 EP2486837 B1 EP 2486837B1
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EP
European Patent Office
Prior art keywords
dishwasher
phase
drying facility
drying
program
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
EP12152384.9A
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German (de)
English (en)
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EP2486837A3 (fr
EP2486837A2 (fr
Inventor
Andreas Heidel
Reinhard Hering
Bernd KRÄNZLE
Michael Georg Rosenbauer
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BSH Hausgeraete GmbH
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BSH Hausgeraete GmbH
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Publication date
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Priority to PL12152384T priority Critical patent/PL2486837T3/pl
Publication of EP2486837A2 publication Critical patent/EP2486837A2/fr
Publication of EP2486837A3 publication Critical patent/EP2486837A3/fr
Application granted granted Critical
Publication of EP2486837B1 publication Critical patent/EP2486837B1/fr
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    • 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
    • A47L15/0034—Drying phases, including dripping-off 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
    • A47L15/48—Drying arrangements
    • A47L15/481—Drying arrangements by using water absorbent materials, e.g. Zeolith
    • 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
    • A47L2401/19—Air humidity
    • 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
    • A47L2401/30—Variation of electrical, magnetical or optical quantities
    • 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
    • A47L2401/34—Other automatic detections
    • 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
    • A47L2501/06—Water heaters
    • 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
    • A47L2501/11—Air heaters
    • 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
    • A47L2501/12—Air blowers
    • 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
    • A47L2501/30—Regulation of machine operational steps within the washing process, e.g. performing an additional rinsing phase, shortening or stopping of the drying phase, washing at decreased noise operation conditions

Definitions

  • the present invention relates to a method for operating a dishwasher, in particular a domestic dishwasher, wherein the method in addition to at least one drying phase, is dried in the dishes, further program phases, such as a pre-rinse phase, a cleaning phase and / or an intermediate rinse phase comprises the dishwasher a control unit (20) and a drying device, by means of which the items to be cleaned is dried, comprises, and wherein the functionality of the drying device is monitored at least temporarily.
  • a dishwasher in particular a domestic dishwasher, with a drying device and a control unit for controlling the dishwasher proposed.
  • a rinsing program usually begins with a pre-rinsing phase in which rinsing liquor - usually fresh water in the pre-rinsing phase - is usually not or only slightly heated and by means of one or more spraying in the interior of the washing of the dishwasher on there in one or more dish racks housed items to be sprayed on.
  • the pre-rinse phase is used to remove coarse, easily removable dirt residues from the items to be washed. It usually ends with the pumping out of the dirty Spülflottenexcellent from the washing through a drain pump. This is followed by the actual cleaning phase, possibly with insertion of an intermediate rinsing phase.
  • the rinsing liquor liquid - here usually water - heated to a predetermined temperature and at the same time detergent added to enhance the cleaning effect of the rinsing liquor.
  • the detergent-added water is sprayed by means of one or more sprayers on the items to be washed in one or more dish racks.
  • the polluted water is usually once again pumped out of the washing compartment of the dishwasher by means of the drain pump.
  • an intermediate rinsing phase may, if appropriate, again follow, in order to use fresh water, which is sprayed via the one or more spray devices in the interior of the rinsing container, to contaminate the area of the bottom sump Rinse the dishwasher and then remove with the aid of a drain pump from the dishwasher.
  • a rinsing phase usually follows, while the heated water mixed with rinse aid is sprayed onto the items to be washed by means of the one or more spray units. This rinsing liquor liquid is pumped out of the interior of the rinsing container by means of the rinse pump at the end of the final rinse phase.
  • the drying phase follows, during which the remaining liquid adhering to the items to be washed evaporates and is removed, for example, by means of a sorption drying unit.
  • the DE 102 04 455 A1 specifies a method for influencing and / or controlling the program run of a sound-generating functional units, such as pumps, valves and the like. Equipped household appliance, in particular a dishwasher, by evaluating sensed in flushing sensor signals. Operating noise generated by the device is recorded by one or more acoustic sensors and, depending on the sensed noise patterns, has an influence on the wash program run, or the sensed noise patterns are used for defect detection of machine components.
  • the object of the present invention is to propose a method for operating a dishwasher and a corresponding dishwasher, by means of which it is possible to satisfactorily clean the items to be washed even in the case of a (partial) defect of one or more components of the drying apparatus, such as a sorption drying apparatus to be able to dry.
  • the object is achieved in terms of the method in that in case of malfunction of the drying device (which can be stored as needed and in particular for later diagnosis as error message in the memory of the dishwasher by type and time and / or displayed on a display) at least one of Program phases with the help of a control unit skipped, modified and / or replaced by an alternative program phase. In this way, it is ensured that even in the case of a defect or an impairment of the function of the drying device, a clean and dry items to be washed, in particular Crockery can be obtained.
  • the dishwasher according to the invention may also comprise other active drying devices.
  • drying devices which bring about active removal of the liquid evaporated in the interior of the dishwasher are conceivable in that the liquid-saturated air is blown or sucked out of the interior, for example with the aid of a blower.
  • Drying devices are also known which comprise heat exchangers, for example in the form of cooling rods or ribs or water-filled water pockets, on which the air moisture condenses inside the dishwasher in order to subsequently be removed from the dishwasher.
  • an advantageous alternative of the invention provides to skip at least one of the program phases according to the program. For example, it would be conceivable to dispense with an intermediate phase between the cleaning phase and the drying phase if the fan of a sorption drying device does not function properly. In this case, it would be ensured that the items to be warmed up in the cleaning phase also have a relatively high temperature in the drying phase, which ensures evaporation of adhering liquid and thus drying of the items to be washed.
  • the entire program can also be replaced by an alternative rapid program in which a reduced liquid input and thus a smaller amount of rinsing liquor liquid are provided.
  • the lower liquid input finally has the consequence that during the drying phase less liquid must be removed from the items to be washed.
  • dishes with the help of heated rinse liquor liquid to heat before the drying phase.
  • the liquid adhering to the items to be washed evaporates, which can finally be condensed and pumped off at the dishwashing space inside walls.
  • the functionality of the drying device is determined directly or indirectly.
  • a direct determination of the functionality means in this context that components of the drying device are monitored. These include, for example, the monitoring of the power consumption of the drying device, in particular a sorption drying device, or individual components thereof (eg a fan or a heater), the detection and evaluation of using one or more appropriate temperature sensors detected temperatures of one or more components of the drying device (eg reversibly dehydratable material of a sorption drying device or a heating device).
  • control components of the respective components of the drying device can also be monitored. If a defect of these control components is detected, then it can be assumed that the drying system is no longer functioning properly.
  • measured values or monitored physical data that vary depending on the operation of the drying device. It is thus possible, for example, to determine the presence of water within the drying system with the aid of a water sensor and to compare this value with given standard values. It is also conceivable to draw a conclusion on the functionality of the drying device by monitoring the humidity in the interior of the dishwasher. The detection can be done either continuously or at predetermined times, for example, at the beginning of each program phase, after certain time intervals or even once each rinse cycle.
  • One or more moisture sensors in the interior of the dishwasher sensors for measuring the power consumption or the power consumption of the heating device or the fan of a sorption drying device or even temperature sensors can be used for the detection, which detect a defective drying process.
  • the one or more sensors can also cause an alarm or the display of an error message on the display of the dishwasher. It would also be conceivable to evaluate the measured values of several sensors with mutual consideration.
  • the duration of at least one of the program phases is extended or shortened in comparison with the duration when the drying device functions.
  • the cleaning phase could be extended if it is known that the heating device of the sorption drying device, which is also used for heating the rinsing water, no longer works as desired.
  • the heating device of the sorption drying device which is also used for heating the rinsing water
  • the heated air finally comes into contact with the rinsing liquor and the items to be washed and causes the rinsing liquor and ware to heat up.
  • the Heating device of Sorptionstrocknungs noticed a defect and no longer works at full capacity, it would be particularly advantageous preferably to extend the cleaning phase accordingly, yet to achieve a satisfactory cleaning result. It would also be advantageous to extend the drying phase when the fan of the sorption drying device no longer works as desired, to ensure reliable drying of the items to be washed.
  • a program phase contains, for example, a specific partial phase during which a desorption of the reversibly dehydratable material is carried out, it would make sense in the event of a failure of the heating device of the sorption drying device to shorten this partial phase in order to keep the overall rinsing program as short as possible.
  • the temperature of a washing liquor circulating through the dishwasher is at least temporarily increased or decreased at least during one of the program phases in comparison to the temperature when the drying device functions.
  • an increase in the temperature of the rinsing liquor during the cleaning phase would make sense if the drying phase is followed by the drying phase and the sorption drying device has a defect.
  • the increased temperature would ensure that the items to be washed and the liquid still adhering after the cleaning phase also have an elevated temperature.
  • this elevated temperature ensures that the liquid can evaporate during the drying phase and condense on corresponding, possibly actively cooled surfaces within the dishwasher (e.g., the sidewalls).
  • At least one of the program phases is run through several times.
  • a double pass of the drying phase can be advantageous, for example, when the drying device can no longer guarantee complete drying in the course of a drying phase.
  • the cleaning phase can also be run through twice if the heating device of the sorption drying device no longer functions as desired and therefore the rinsing liquor can no longer be heated to the required temperature.
  • the individual program phases should always be combined in such a way that despite a malfunction and the associated limited functionality of the Drying device a satisfactory cleaning and drying of the dishes can be ensured.
  • the drying device is designed as a sorption drying device which, in addition to a reversibly dehydratable material, such as zeolite, comprises a heating device for heating the reversibly dehydratable material and a fan, with the aid of which air moves through the interior of the dishwasher and the sorption drying device can be.
  • a reversibly dehydratable material such as zeolite
  • the sorption drying device allows a particularly energy-efficient and efficient drying, as it comes during the adsorption of liquid on the reversibly dehydratable material to a temperature increase thereof and also the air passed to him.
  • the liquid absorption capacity of the air increases as a result, so that it comes to a fast and almost complete drying of the dishes.
  • the sorption drying device including the heating device and the fan comprises two electrical components that may be subject to malfunction, it is of enormous advantage if the method for operating the dishwasher according to the present invention can be changed. As a result, it is always ensured that the dishwasher has the necessary cleaning and drying performance.
  • the dishwasher comprises an additional water heater, wherein in case of malfunction of the sorption drying device, the water heater is operated to heat the circulating within the dishwasher rinse.
  • the water heater allows the indirect Heating the dishes, so that it can come during the drying phase to evaporate adhering to the dishes liquid and thus to a drying of the dishes.
  • the water heating can also be operated in addition, if the sorption drying device works properly, it is also possible to operate the water heater only if the Sorptionstrocknungs adopted has a malfunction. Likewise, it would eventually also possible to operate the water heater with an increased heating power, if it is necessary to dispense with the Sorptionstrocknungs announced.
  • an alternative drying phase is activated, while the liquid adhering to the items evaporates by increasing the temperature inside the dishwasher and then on the side walls, the floor and / or the ceiling area of the interior of the dishwasher condensed.
  • a drying phase also referred to as condensation drying, has the advantage that in addition to a water heater, which is optionally provided for heating the rinsing liquor during or the cleaning phase (s), no additional heating means must be present.
  • a heat exchanger is used to support the condensation. Even if there is already without a heat exchanger for a condensation of evaporated liquid in the side walls (which also includes the front door is), since these walls are usually cooled by the ambient air, a heat exchanger has two key advantages. First, the condensation is greatly accelerated because Within the walls of the heat exchanger, which come into contact with the air in the interior of the dishwasher, a liquid (eg fresh water) circulates, which has a substantially lower temperature than the air inside the interior of the dishwasher. On the other hand, the liquid is heated within the heat exchanger. If liquid fresh water from the cold water pipe of a house is used, it can be used as heating water during a subsequent rinse cycle. As this water is already warmed up, there is no need for further heating when the water first comes into contact with the items to be washed. This may for example be the case during a pre-rinse phase.
  • a liquid eg fresh water
  • the temperature within the dishwasher is increased before or during the drying phase with the aid of the heating device of the sorption drying device.
  • the sorption drying device as a whole should no longer be functional, since, for example, the reversibly dehydratable material is no longer present in sufficient quantity or because the power of the heating device is no longer sufficient to cause desorption of the reversibly dehydratable material, the sorption drying device serves In this case, still the heating of the air, which flows from the interior through the Sorptionstrocknungs Alpine and back into the interior, and thus causes the heating of the items to be washed and / or the rinsing liquor.
  • the heating device of the sorption drying device is operated at a lower heating power than during the desorption of the reversibly dehydratable material. This may also be useful if the reversibly dehydratable material for whatever reason is no longer able to absorb the necessary amount of liquid for drying. If, in this case, the drying is effected, for example, by the above-mentioned condensation drying, the heating device of the sorption drying device only has to be operated with a lower heating power, which ensures heating of the washing liquor during the cleaning phase or during the evaporation of liquid before or during the drying phase. An additional heating of the reversibly dehydratable material, however, is not necessary anymore.
  • the fan of the sorption drying device is operated at an increased speed or reduced speed in comparison with the operation when the drying device functions.
  • the background is that the sorption drying device with a corresponding malfunction no longer the drying of the items to be washed but rather the heating of air, washing liquor and / or dishes has to serve. Since a different contact time with the heated air is necessary here, the volume flow of air through the Sorptionstrocknungs announced can be changed accordingly. Likewise, a change in the fan speed is useful if the heater of Sorptionstrocknungs Published no longer works as desired.
  • the heating device only has half the heating power, then the air should remain longer in the area of the sorption drying device in which the heating device is located so that it can be heated to the required temperature. In this case, it would be advisable to reduce the speed of the fan accordingly. On the other hand, if the heating power of the heating device can no longer be throttled correctly, it would again be advisable to increase the speed in order to prevent overheating of the air and thus damage to the dishes or the dishwasher.
  • the functionality of the drying device by analyzing the functionality of individual components of the drying device, such as a heater and / or a fan, determined and skipped depending on the respective functional capabilities of the individual components at least one of the program phases using a control unit, modified and / or replaced by an alternative program phase.
  • the success of the entire washing program depends not only on the functionality of a single component of the sorption drying device. Rather, it may be that several components do not work as desired. In this case, it is important to consider which process changes are most likely to result in a good cleaning and drying result.
  • the functionality of the drying device is checked before each operation of the dishwasher and only in case of malfunction skipped at least one of the program phases using a control unit, modified or replaced by an alternative program phase.
  • the dishwasher according to the invention which comprises a drying device and a control unit for controlling the dishwasher, is characterized in that it comprises one or more sensors and / or evaluation units, with the aid of which the functionality of the drying device can be determined directly, for example by detecting the power consumption of the drying device. or indirectly, for example by detecting the humidity within the dishwasher, can be determined and that the control unit is adapted to operate the dishwasher by a method in the sense of the preceding description.
  • the selection of the respective change in the program sequence is primarily selected on the basis of data stored in the controller.
  • the method and the dishwasher thus allow a good cleaning and drying of the items to be washed even with limited or lack of proper functioning of the drying device, so that the invention provides a significant technical contribution to the prior art.
  • FIG. 1 only those components of a dishwasher are provided with reference numerals and explained which are necessary for the understanding of the invention. It goes without saying that the dishwasher according to the invention can comprise further parts and assemblies.
  • FIG. 1 shows an in the present embodiment designed as a domestic dishwasher dishwasher 1.
  • This has an interior 2, which is provided by a washing container and by means of a pivotally mounted on the dishwasher 1 door (not shown) for loading and unloading can be opened or closed ,
  • dish racks 3 are arranged for receiving items to be cleaned, which can be pulled out of the interior 2 of the dishwasher 1 in a conventional manner in order to facilitate the loading and unloading.
  • spray arms 4 are arranged to act on liquid items not shown in more detail, with the aid of which the items to be washed stored in the dishwashing baskets 3.
  • the rinsing liquor liquid so-called rinsing liquor, may, for example, be treated with cleaning agents and / or rinse aids and / or additives, such as, for example, Softener offset water act so that the desired cleaning effect and also a streak-free drying can be ensured.
  • the liquid flowing down from the items to be washed finally collects in a pump sump 5, which is arranged in the bottom area of the interior 2 of the dishwasher 1.
  • the spray arms 4 are fluidly connected via a supply line 6 with a circulation pump 8, which is arranged in a bottom assembly 7 below the interior 2 of the dishwasher 1 next to other components of the dishwasher. During operation of the circulating pump 8, this sucks the accumulated in the pump sump 5 liquid and promotes them through the supply line 6 to the spray arms. 4
  • the circulation pump 8 as in FIG. 1 shown, have an integrated water heater 9 for heating the liquid, which can be dispensed in the case of Sorptionstrocknungs worn on this additional heating means. Additionally or alternatively, in addition to the circulation pump 8, a separate water heater can be provided.
  • a drain pump 10 is finally provided, which is also in liquid-conducting connection with the pump sump 5 and can be connected to a disposal line 11 to a house-side sewage disposal network.
  • the dishwasher 1 may have a sorption drying device with the aid of which the ware items arranged and cleaned in the dishwashing baskets 3 can be dried at the end of a wash program run.
  • the bottom module 7 has a sorption container 12, which is connected in an air-conducting manner via an air channel 13 to an inlet 14, wherein a fan 15 is provided to produce a forced flow.
  • a fan 15 is provided to produce a forced flow.
  • an exhaust opening 16 is provided in the bottom area of the dishwasher 1.
  • a reversibly dehydratable material 17 is provided in the sorption 12 for performing an exothermic drying. It is, for example, zeolite, which absorbs water due to its hygroscopic property, at the same time heat energy is released. By this released heat energy heating of the circulating air is effected, which at the same time increases the moisture absorption capacity of the circulating air. Finally, at the end of a drying process, an amount of liquid is stored in the reversibly dehydratable material 17, which has to be expelled again before reuse of the sorption drying device.
  • a heating device 18 is provided, which is arranged in the present embodiment in the sorption container 12.
  • an air heater outside of the sorption container 12 for example in the air duct 13, in order to effect heating of the air conveyed into the sorption container 12.
  • an air flow generated by the fan 15 is heated, so that the reversibly dehydratable material 17 can be heated to temperatures at which the amount of water stored in the reversibly dehydratable material 17 is released again.
  • control unit 20 which can be arranged, for example, in the base assembly 7.
  • control unit 20 also monitors and carries out the execution of a factory programmed program flow, it also initiates a self-test of the dishwasher 1 (eg at the beginning of each wash program or between the individual program phases) to determine if the dryer 21 is functioning properly.
  • the signals of one or more sensors 19 are interrogated which are in contact with the individual components of the dishwasher 1 and in this case check specific data (for example power consumption, power consumption, temperature, speed, etc.) of the respective components.
  • the sensors can in this case be arranged in the air duct 13, in the interior 2 or else the bottom module 7 or within the respective components.
  • FIG. 2 A schematic sequence of such a program change shows FIG. 2 ,
  • the dishwasher 1 performs a self-test (T) to check whether the drying device 21 of the dishwasher 1 works properly. If there is no malfunction of the same (N), the dishwasher 1 is operated according to a standard program (S) stored in the control unit 20.
  • T self-test
  • S standard program
  • the water heater 9 is put into operation (W), on the one hand to heat the wash liquor to the temperature required during the cleaning phase and on the other hand to ensure a corresponding heating of the dishes. This ensures that during the drying phase evaporation of liquid adhering to the items to be washed occurs, so that the items to be washed can be dried satisfactorily even without a functioning sorption drying unit.
  • the cleaning phase (VR) and the drying phase (VT) are prolonged so that the air within the dishwasher 1 and thus also the rinsing liquor or the items to be washed can continue to be heated sufficiently by the heating device 18 of the sorption drying device.
  • a further embodiment of the invention is based on the starting situation that an error is signaled to the customer when a component of the drying device 21 (eg sorption drying device) is defective.
  • the drying device 21 is no longer operated in this case. This results in an inferior drying result.
  • Possible errors include, for example, a blocked fan 15, a malfunctioning electrical connection, a defective fan 15 or defective electronics.
  • the heating device 18 of the sorption drying device may be burned out, the amount of functional zeolite in the sorption drying device may not be sufficient or the zeolite may have an excess temperature.
  • an emergency program is finally activated.
  • certain program phases are skipped or replaced by modified phases.
  • the conventional water heater 9 can be used.
  • an extension of the cleaning phase is conceivable.
  • the conventional condensation drying can be activated. This can be improved by a heat exchanger 22.
  • the advantages of the invention are that the performance of the cleaning performance or drying performance can be maintained at a similar level as in functional drying device. In addition, customer service is minimized.

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  • Washing And Drying Of Tableware (AREA)

Claims (15)

  1. Procédé de fonctionnement d'un lave-vaisselle (1), en particulier d'un lave-vaisselle électroménager, ce procédé comprenant, outre au moins une phase de programme sous forme d'une phase de séchage, qui sèche la vaisselle, encore d'autres phases de programme comme par exemple une phase de prélavage, une phase de nettoyage et/ou une phase de lavage intermédiaire, le lave-vaisselle comprenant une unité de commande (20) et un dispositif de séchage (21) à l'aide duquel la vaisselle à nettoyer est séchée,
    la fonctionnalité du dispositif de séchage (21) étant au moins à certains moments évaluée, et dans le cas d'un dysfonctionnement du dispositif de séchage (21), au moins l'une des phases de programme étant sautée, modifiée et/ou remplacée par une phase de programme alternative à l'aide de l'unité de commande (20), caractérisé en ce que en cas de dysfonctionnement du dispositif de séchage (21) la phase de rinçage classique prévue étant prolongée, la température pendant cette phase étant augmentée ou la phase de rinçage se poursuivant plusieurs fois.
  2. Procédé selon la revendication précédente, caractérisé en ce que la fonctionnalité du dispositif de séchage (21) est déterminée directement, par exemple par détection de la prise de puissance du dispositif de séchage (21) ou indirectement, par exemple par détection de l'humidité de l'air dans l'espace intérieur (2) du lave-vaisselle (1).
  3. Procédé selon l'une ou plusieurs des revendications précédentes, caractérisé en ce que la durée d'au moins l'une des phases de programme est prolongée ou raccourcie en comparaison de la durée en cas de fonctionnement du dispositif de séchage (21).
  4. Procédé selon l'une ou plusieurs des revendications précédentes, caractérisé en ce que la température d'un bain de lavage circulant dans le lave-vaisselle (1) est au moins en partie augmentée ou diminuée au moins pendant l'une des phases de programme comparée à la température en cas de fonctionnement du dispositif de séchage (21).
  5. Procédé selon l'une ou plusieurs des revendications précédentes, caractérisé en ce qu'au moins l'une des phases de programme se poursuit plusieurs fois.
  6. Procédé selon l'une ou plusieurs des revendications précédentes, caractérisé en ce que le dispositif de séchage (21) est réalisé comme un dispositif de séchage par sorption, qui comprend outre une matière (17) réversiblement déshydratable, comme par exemple une zéolithe, un canal d'air (13), un appareil de chauffage (18) pour chauffer la matière réversiblement déshydratable (17), ainsi qu'un ventilateur (15) à l'aide duquel de l'air peut être mis en mouvement à travers l'espace intérieur (2) du lave-vaisselle (1) et le dispositif de séchage par sorption.
  7. Procédé selon la revendication précédente, caractérisé en ce que le lave-vaisselle (1) comprend un chauffage d'eau (9) supplémentaire et en ce qu'en cas de dysfonctionnement du dispositif de séchage par sorption, ce chauffage d'eau (9) est mis en service pour chauffer le bain de lavage circulant à l'intérieur du lave-vaisselle (1).
  8. Procédé selon l'une ou plusieurs des revendications précédentes, caractérisé en ce qu'en cas de dysfonctionnement du dispositif de séchage par sorption, une phase de séchage alternative est activée, pendant laquelle le liquide adhérant à la vaisselle est évaporé par l'augmentation de la température à l'intérieur du lave-vaisselle (1) et ensuite condensé des parois latérales, du fond et/ou la zone de plafond de l'espace intérieur (2) du lave-vaisselle (1).
  9. Procédé selon la revendication précédente, caractérisé en ce que pour soutenir la condensation, on utilise un échangeur de chaleur (22).
  10. Procédé selon l'une ou plusieurs des revendications 6 à 9, caractérisé en ce qu'en cas de dysfonctionnement, la température à l'intérieur du lave-vaisselle (1) est augmentée avant ou pendant la phase de séchage à l'aide de l'appareil de chauffage (18) du dispositif de séchage par sorption.
  11. Procédé selon l'une ou plusieurs des revendications 6 à 10, caractérisé en ce qu'en cas de dysfonctionnement, l'appareil de chauffage (18) du dispositif de séchage par sorption est mis en service avec une puissance de chauffage moindre que pendant la désorption de la matière réversiblement déshydratable (17).
  12. Procédé selon l'une ou plusieurs des revendications 6 à 11, caractérisé en ce que le ventilateur (15) du dispositif de séchage par sorption fonctionne à un régime augmenté ou diminué comparé au fonctionnement du dispositif de séchage (21) en service.
  13. Procédé selon l'une ou plusieurs des revendications précédentes, caractérisé en ce que la fonctionnalité du dispositif de séchage (21) est déterminée par l'analyse de la fonctionnalité des différents constituants du dispositif de séchage (21), comme par exemple d'un appareil de chauffage (18) et/ou d'un ventilateur (15) et, en fonction de chacune des fonctionnalités des différents constituants, au moins une des phases de programme est sautée, modifiée et/ou remplacée par une phase de programme alternative à l'aide d'une unité de commande (20).
  14. Procédé selon l'une ou plusieurs des revendications précédentes, caractérisé en ce que la fonctionnalité du dispositif de séchage (21) est évaluée avant chaque marche du lave-vaisselle (1) et seulement en cas de dysfonctionnement, au moins l'une des phases de programme est sautée, modifiée ou remplacée par une phase de programme alternative à l'aide d'une unité de commande (20).
  15. Lave-vaisselle (1), en particulier lave-vaisselle électroménager, avec un dispositif de séchage (21) et une unité de commande (20) destinée à commander le lave-vaisselle (1), caractérisé en ce que le lave-vaisselle comprend un ou plusieurs détecteurs (19) et/ou des unités d'évaluation, à l'aide desquels la fonctionnalité du dispositif de séchage (21) peut être déterminée directement, par exemple par détection de la prise de puissance du dispositif de séchage (21) ou indirectement, par exemple par détection de l'humidité de l'air à l'intérieur du lave-vaisselle, et en ce que l'unité de commande (20) est réalisée pour mettre en service le lave-vaisselle suivant un procédé selon l'une ou plusieurs des revendications précédentes.
EP12152384.9A 2011-02-10 2012-01-25 Lave-vaisselle et procédé de fonctionnement de celui-ci Active EP2486837B1 (fr)

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DE102012200361B3 (de) * 2012-01-11 2013-07-04 Premark Feg L.L.C. Transportspülmaschine mit Trocknungssystem und Verfahren zum Betreiben einer solchen Transportspülmaschine
DE102013202103A1 (de) * 2013-02-08 2014-08-14 BSH Bosch und Siemens Hausgeräte GmbH Haushaltsgerät mit einer Luftheizeinrichtung
CN112842218B (zh) * 2021-01-20 2022-09-30 宁波方太厨具有限公司 一种清洗机烘干方法及应用该方法的清洗机
EP4268698A1 (fr) * 2021-03-29 2023-11-01 Ali Group S.r.l. Machine de séchage de la vaisselle, et procédé de séchage de la vaisselle dans une telle machine

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DE10204455A1 (de) * 2002-02-05 2003-08-21 Miele & Cie Verfahren zur Beeinflussung und/oder Steuerung des Programmlaufs eines wasserführenden Haushaltgerätes, insbesondere Geschirrspülmaschine, sowie Geschirrspülmaschine zur Durchführung des Verfahrens
DE10238303A1 (de) * 2002-08-21 2004-03-04 BSH Bosch und Siemens Hausgeräte GmbH Verfahren zum Anpassen eines Spülprogramms in einer Geschirrspülmaschine und Geschirrspülmaschine
DE102005004097A1 (de) * 2004-12-09 2006-06-14 BSH Bosch und Siemens Hausgeräte GmbH Geschirrspülmaschine und Verfahren zum Betreiben derselben
DE102007017284B3 (de) * 2007-04-12 2008-11-13 BSH Bosch und Siemens Hausgeräte GmbH Temperaturerfassung bei Zeolithtrocknung
ES2437609T3 (es) * 2008-08-27 2014-01-13 BSH Bosch und Siemens Hausgeräte GmbH Lavavajillas doméstico con un equipo de secado por sorción así como procedimiento correspondiente

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PL2486837T3 (pl) 2020-02-28
EP2486837A2 (fr) 2012-08-15
DE102011003955A1 (de) 2012-08-16

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