EP3214990A1 - Geschirrspülmaschine mit einer trocknungseinrichtung - Google Patents
Geschirrspülmaschine mit einer trocknungseinrichtungInfo
- Publication number
- EP3214990A1 EP3214990A1 EP15785123.9A EP15785123A EP3214990A1 EP 3214990 A1 EP3214990 A1 EP 3214990A1 EP 15785123 A EP15785123 A EP 15785123A EP 3214990 A1 EP3214990 A1 EP 3214990A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- dishwasher
- speed
- air
- drying
- phase
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000001035 drying Methods 0.000 title claims abstract description 139
- 238000005406 washing Methods 0.000 claims abstract description 88
- 238000004140 cleaning Methods 0.000 claims abstract description 7
- 238000000034 method Methods 0.000 claims description 24
- 230000008569 process Effects 0.000 claims description 24
- 238000001179 sorption measurement Methods 0.000 claims description 23
- 238000009826 distribution Methods 0.000 claims description 21
- 238000003795 desorption Methods 0.000 claims description 6
- 239000011521 glass Substances 0.000 claims description 4
- 238000011144 upstream manufacturing Methods 0.000 claims description 4
- 238000007664 blowing Methods 0.000 abstract description 3
- 239000003570 air Substances 0.000 description 138
- 230000008859 change Effects 0.000 description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 9
- 238000010438 heat treatment Methods 0.000 description 7
- 238000007605 air drying Methods 0.000 description 6
- 238000011161 development Methods 0.000 description 6
- 230000018109 developmental process Effects 0.000 description 6
- 230000006870 function Effects 0.000 description 6
- 239000002594 sorbent Substances 0.000 description 6
- 238000009833 condensation Methods 0.000 description 5
- 230000005494 condensation Effects 0.000 description 5
- 229910021536 Zeolite Inorganic materials 0.000 description 4
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 4
- 230000002349 favourable effect Effects 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 238000011068 loading method Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 230000009467 reduction Effects 0.000 description 4
- 239000010457 zeolite Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000004851 dishwashing Methods 0.000 description 3
- 239000012080 ambient air Substances 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005485 electric heating Methods 0.000 description 2
- 230000008447 perception Effects 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 239000013598 vector Substances 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 238000010411 cooking Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000010981 drying operation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 230000004941 influx Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000003607 modifier Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000002123 temporal effect Effects 0.000 description 1
- 238000012549 training Methods 0.000 description 1
- 238000013022 venting Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
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
- A47L15/42—Details
- A47L15/48—Drying arrangements
- A47L15/486—Blower arrangements
-
- 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
- A47L15/0002—Washing processes, i.e. machine working principles characterised by phases or operational steps
- A47L15/0013—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
- A47L15/0021—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
- A47L15/0042—Desorption phases of reversibly dehydrogenated drying material, e.g. zeolite in a sorption drying system
-
- 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
-
- 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
- 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
- A47L15/00—Washing or rinsing machines for crockery or tableware
- A47L15/42—Details
- A47L15/50—Racks ; Baskets
-
- 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
- A47L2501/10—Air circulation, e.g. air intake or venting arrangements
-
- 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
Definitions
- the invention relates to a dishwasher, in particular a
- Rinsing container can be introduced, in particular according to the preamble of claim 1 or claim 2.
- Such assistance in drying the items to be washed by blowing air into the washing container is basically known, e.g. from WO 2010/012659 A2.
- the invention is based on the problem, the drying of items to be washed in the interior of the washing container of a dishwasher, in particular
- volume flow of the air Spülguttrocknung over the time course of the drying phase (considered) varies or fluctuates several times, arise over the time course of the drying phase in the washing considered repeatedly changed flow conditions.
- the volume of air respectively introduced through the inlet opening into the interior of the washing container per unit of time changes several times over the duration of the drying phase.
- the volume flow from a first time period or time to a next, second time period or time of the time course of the drying phase in each case has a specifically assigned
- Preferably flow-influencing or flow-changing means are provided such that targeted, in particular in a predeterminable manner, volumetric flow fluctuations of the air flow introduced into the washing compartment over the time duration of the respective drying phase are effected.
- location areas or zones in the interior volume of the washing container can be improved by the air stream introduced by means of at least one inlet opening into the washing container, or even a larger volume in the washing container can be swept by moving air or an air stream than at the entire drying phase
- the air is conveyed far away from the exit opening, for example into the area of an opposite corner in the rinsing container, so that even removed items to be washed are effectively dried.
- the exit velocity increases the drying air more in the vicinity of the Outlet opening upwards.
- the average noise level during the drying phase is lowered compared to a permanently maximum exit speed.
- the local flow distribution of the air in the rinsing container is varied several times during the drying phase. This comes in the washing on the
- Drying phase in any case and regardless of any sensor - on this is completely dispensable - different flow profiles to the effect.
- flow vectors varying in both magnitude and / or direction are obtained at each point or location in the system
- Exit speed is controlled by a sequence program, a readjustment is unnecessary.
- the invention therefore shows a high degree of simplicity.
- the multiple variation or change in the volume flow and / or the outlet velocity over a in a preferably electrical
- Control unit in particular control unit, the dishwasher deposited program fixed preset and therefore requires no external input data, which the o. G. Possibility of completely abandoning a sensor system opened.
- the dishwasher according to the invention thus enables an improved
- Inlet opening in particular blow-out opening is initiated, allows, even in the respective items to be washed shaded or hidden areas in the interior of the Rinse container sufficiently to get there to achieve a sufficient removal of any existing moisture during the drying phase.
- the dishwasher according to the invention is thus in terms of their drying in comparison to the drying of a conventional dishwasher, in which at least one outlet, in particular exhaust opening, a constant or
- Drying for example, in a circulating air drying, exhaust air drying, and / or condensation drying.
- Run through sorption drying device and there has given over adsorption liquid to the sorbent are introduced into the washing and cause a high degree of dryness. Then it is particularly favorable, in the initial phase, ie during an initial period of the drying phase in which the drying air removes a lot of moisture, with a high volume flow and / or a high Exit speed to work, and / or in the further time course of the drying phase can be lower overall.
- the structural design and the controllability of such an air flow or flow modifier are simple and inexpensive.
- the speed of the fan is in this case preset variably, in particular via the program sequence, so that no sensor system is required for input data. All it takes is a simple control, without having to provide a control loop.
- a (speed) interval between at least one, in particular predetermined, maximum and at least one minimum speed, so does not fall to zero, so that the drying time is used effectively.
- the interval can be chosen so that the noise level falls below a set limit on average. Due to the independence of the controller, the noise level is the same every time.
- the speed is initially raised to a maximum speed at the beginning of the drying phase and subsequently lowered to a minimum speed of the interval.
- the amount of water to be removed is particularly high at the beginning of the drying phase.
- the respective selected minimum speed (minimum) and maximum speed (maximum value) of the speed variation range determined for the speed variation is preferably outside the speed range established during the initial start or run of the fan.
- the minimum speed is in particular one of zero
- rpm revolutions per minute
- first lower target speed lower value of the speed variation interval
- second upper target speed maximum value of the speed variation value interval
- expedient which is at least 5000 revolutions per minute, in particular between 5000 and 6000 revolutions per minute.
- the distance between the lower or lower speed and the upper, higher speed is chosen in particular by more than 1000 revolutions per minute.
- the rotational speed of the blower passes at least twice the (speed) interval between the maximum and minimum rotational speed over the drying phase, a high change in the air flow can be effected so that the most varied local distributions of the (air) flow are realized in the washing container are.
- the speed of the fan alternates several times between a first (non-zero) setpoint speed and a different second (non-zero) setpoint speed during the period of the drying phase, i. is varied.
- blower 2 - 10 change between a, preferably predetermined, lower target speed and one, preferably predetermined, upper
- the time duration for the change between the first setpoint speed and the thereof different second target speed is expediently at least 30 seconds, in particular between 1 minute and 5 minutes.
- the speed curve can be variable over at least part of the drying phase in the manner of a sawtooth or sine curve between one or more maximum and minimum values, so that the speed always changes from one moment to the next.
- the speed curve over at least part of the drying phase in the manner of a step function between one or more maximum and minimum values is variable. Then at the beginning, for example, a time in the
- the respective minimum value of the setpoint speed is more than 5% below the respective one
- the lowest values of the speed are more than 1000 revolutions per minute below the maximum values, so large differences in the local
- Closing member (mit-) be effected, about a downstream of the fan, in
- Airflow rotating sector disk with one or more open and closed areas.
- the open areas can be extended over the circumference of different sizes, so as to also allow at the beginning of a high passage and a high flow rate, which can then become smaller during the drying phase.
- the outlet opening may be associated with at least one movable mechanical control means, such as an air baffle, a directionally variable nozzle, a movable flap or the like.
- the direction of the injected air is changeable, as well as the outlet cross-section, so that variations on this are possible.
- Dishwasher in particular a running dishwasher be performed.
- Such another process phase may e.g. in a dishwasher equipped with a sorption drying device, a
- Fig. 4 shows another possible speed curve of a fan for
- Fig. 5 is a diagram of the water absorbency of zeolite as
- Fig. 6 is a graph of the measured air outlet temperature in the. Sorptionstrocknungssch over time
- FIG. 7 is a view from the front in a filled washing container with marked flow arrows of an air flow during the drying phase
- Fig. 8 is a view similar to Figure 7 with an alternative
- FIG. 9 is a similar view as Figure 7 with an alternative
- Fig. 10 is a view similar to Figure 7 with an alternative
- FIG. 1 1 is a detailed view of a blowout with an upstream
- Fig. 12 is a schematic overall circuit diagram of a washing container with a
- the dishwashing machine 1 shown schematically in Figure 1 is a domestic dishwasher and has as part of a body ' 5 a washing container 2 for receiving ware to be processed such as dishes, pots, cutlery, glasses, cooking utensils u. on.
- the items to be washed can, for example, be held in dish racks 1 1 and / or a cutlery drawer 10 and can be acted upon by rinsing liquor.
- the rinsing container 2 may have an at least substantially rectangular outline with a front side VS facing a user in the operating position.
- the front side VS can form part of a kitchen front of kitchen furniture standing next to one another or, in the case of a standalone appliance, can also be without reference to other furniture.
- the loading opening of the washing container can be closed with a door.
- a frontal charging opening of the washing container 2 on the front side VS of the dishwasher can be closed by a door 3.
- This door 3 is shown in Figure 1 in partially open and then inclined to the vertical position. In its closed position, however, it stands upright approximately vertically. As shown in the drawing, it is a reference to the frontal loading opening of the
- Rinse container lower horizontal axis swung forward and down in the direction of arrow 4, so that it is at least almost horizontal in the fully open position. Close the walls of the washing container and the closed door a treatment or washing room, in which the respective items to be cleaned and / or to be dried items is accommodated.
- the door 3 may be provided with a decorative plate 6, so as to experience a visual and / or haptic appreciation and / or adaptation to surrounding kitchen furniture.
- the dishwasher 1 is designed here as a stand-alone or as a so-called. Semi-integrated or as a fully integrated device.
- the movable door 3 is assigned in its upper region a control panel 8 which extends in the transverse direction QR and which can comprise a front access opening 7 for manually opening and / or closing the door 3.
- the dishwasher 1 has an inlet opening into the washing container 2, in particular a blow-out opening 9, via which air can be introduced into the washing container during a program cycle for drying the washware during at least one drying phase. Also several inlet openings, in particular
- the exhaust opening 9 projects on the - viewed from the front side VS - from the rear right corner of the bottom of the washing compartment 2 in the interior thereof.
- the exhaust opening may alternatively be provided in the door.
- the exhaust opening 9 is invariable, in particular rigid and therefore does not require any control elements to their
- the dishwasher is provided here in the present embodiment with a Sorptionstrocknungs Surprise 12, which is located in Figure 12. During a phase which wicks the items to be washed or a drying cycle of the rinse cycle of a currently running dishwasher program, the air which is the
- the Sorption drying device 12 is preferably a component of an air circulation system. This comprises an air channel 24, which connects an air outlet opening 23 in the washing container 2 with the air outlet or outlet opening 9 in a wall, here for example in the bottom part of the washing container 2.
- an air channel 24 which connects an air outlet opening 23 in the washing container 2 with the air outlet or outlet opening 9 in a wall, here for example in the bottom part of the washing container 2.
- the air duct 24 is the air duct 24.
- Sorptionstrock device 12 inserted. Between the air outlet opening 23 and the Sorptionstrocknungseinnchtung 12, i. When viewed in the flow direction of the air, a blower 17 is inserted before the Sorptionstrocknungseinnchtung 12, the
- Drying operation ensures that moisture-laden air is sucked from the interior of the washing container through the outlet opening 23 in the air channel 24, is transported through the Sorptionstrocknungseinnchtung 12 and transported, where the sorbent material (such as zeolite) of the moist air by adsorption moisture withdraws, and then the thus dried air through the exhaust opening 9 in the
- Air duct with Sorptionstrocknungseinnchtung is finally ensured a desired degree of drying of the dishes.
- Sorptionstnungnung be provided at least one electric heating device.
- the heating device is designated HZ in FIG.
- Desorption is preferably carried out during a partial rinse with rinse liquid to be heated, such as during the cleaning cycle of a subsequent dishwashing program.
- the fan is put into operation, so that air from the interior of the washing through the
- Sorptionstnungnung 12 is transported.
- the sorption material and / or the passed-through air are heated by means of the electric heating device, so that the air absorbs the adsorbed on the sorbent moisture.
- the sorbent material is dried and is available for the drying cycle of the rinse cycle of a subsequent dishwashing program regenerated for adsorption drying.
- Dishwasher to be carried out moist, to be dried air from the
- Part of the air channel 24 moves in the direction of the exhaust opening 9 and blown through this back into the interior of the washing.
- Air circulation system with sorption drying device also another
- Drying principle works.
- a so-called exhaust air drying can be provided, in the process air from the washing container, for. over one
- the circulating air drying of the process air duct leads the optionally blended with outside air or mixed process air via a blow-out back into the washing.
- the process air duct and / or its fan may be provided with a condensation surface, so that there is a Condensation drying is caused by passing moist air. Possibly. Ambient air can be conducted past the condensation surface on the outside of the condensation surface via a fresh air channel.
- the fresh air duct may have its own fan or the fan of the process air duct is as a common fan for the
- Treatment room is guided or moved into it. If the drying is supported by opening the door by a gap, so may
- Inlet opening in particular be formed by this gap.
- the exhaust opening 9 is immobile in a first embodiment and shows a constant cross-section. Below are still versions described, which are different in so far and also by mechanical changes to the
- Outlet 9 change the flow distribution SV in the washing tank 2.
- the dishwasher goes through during a rinse different
- Program steps of a running dishwasher program u. a. at least one drying phase (several are possible), in which an air flow 13 through the
- Blow-out 9 is initiated for drying the washware located in the washing container 2 in this.
- the respective dishwashing program therefore converts one or more liquid-conducting partial rinses and at least one drying cycle.
- a variation of the local flow distribution 25 of the air in the washing container takes place in that the volume flow Q which can be introduced into the washing container via the blow-off opening 9 and / or the outlet velocity c of air 13 for washing drying over the drying phase TG varies several times.
- volumetric flow is understood in particular to mean the respective volume of the air which corresponds to the opening cross-section of the exhaust orifice per unit of time, ie. within a period of time, leaves.
- Dishwasher carried out rinse preferably lasts at least 15 minutes, especially typically several 10 minutes, preferably between 30 and 60 minutes. In the illustrations according to FIGS. 3 and 4, a period of 30 minutes is used as an example for the drying phase.
- the exit velocity of the air introduced into the rinsing container via the outlet opening causes the local flow distribution SV of the air in the air
- Rinsing container varies several times during the drying phase. Examples of these are shown in FIGS. 7 to 10. In other words, different local flow distributions of the air in the interior of the washing compartment result as a function of changes or variations of the volume flow and / or
- Outlet 9 to see a local air flow distribution with a high cross-flow component 14 in the vicinity of the bottom 16 of the washing, so that the entire lower portion of the washing container 2 is swept with high volume flow Q of the drying air and the vertical flow 17 over the entire width of the washing container. 2 distributed.
- FIGS. 9 and 10 also show how different air flows can form in the rinsing container. These images can also be snapshots during a change in the flow rate.
- cutlery drawer 10 and upper dish rack 1 1 are acted upon here from a direction of flow from above-unlike in FIGS. 7 and 8.
- the volumetric flow and / or the outlet velocity of the air introduced from the exhaust opening into the interior of the rinsing container are varied over the duration of the respective drying phase of a rinse cycle such that a turbulent air flow forms in the rinsing container.
- the probability is increased with which the respective local local area in the washing compartment of the washing container can be detected or recoatable by a sufficient flow of air for drying the items to be washed. It becomes clear how many different and mutually alternating distributions of flows of the air within a drying phase are possible, so that different areas of the interior of the washing container 2 times with high and sometimes with lower intensity of the air flow and / or from different
- Rinsing container on the exhaust air flowing in the air it is also not significant, for example, if large Spülgutmaschine in the washing compartment form obstacles to the air flow, as these obstacles are streamed from different directions and thus also behind.
- the described variation of the exit velocity of the air from the blow-off opening 9, which is accompanied by a change in the volume flow at a constant outlet cross-section, can be effected in a particularly advantageous manner via different rotational speeds DR of a blower 17 connected upstream of the blow-off opening 9 or at least can be effected with its assistance.
- volume flow and / or the outlet velocity is expediently controlled via a sequence program, which has one in one
- control unit CO preferably electrical control device, in particular control unit CO (see FIG. 12) of the dishwasher 1 is permanently preset. There are no data from the current operation required, but the
- DMA here: 6000 rpm
- DMI here: 3000 rpm
- the lowest values of the rotational speed DR are more than 5% below the maximum values.
- the lowest values of the rotational speed DR are in particular more than 1000 revolutions per
- the speed DR is first set to a
- a sorption drying device such as e.g. 12 takes up a lot of water in this phase and gives off a lot of heat energy (see Figures 5, 6). It is therefore particularly useful, in the initial phase, i. during an initial period, AP the
- FIG. 5 shows a schematic representation of the water absorption capacity of zeolite as sorption material as a function of the progression of the drying time t during a drying cycle TG, which here is for example 30 minutes in duration.
- the figure shows schematically the time evolution of the discharge temperature T in ° C of the air, which is blown out of the exhaust opening in the washing compartment of the washing during the drying phase TG, depending on the time t in minutes
- Sorption drying device passed through air their highest temperature and then drops to the end of the drying cycle or the drying phase TG, here at about 30 minutes from.
- the first maximum can be particularly high in order to make the drying very effective. Further maxima can then be lowered slightly to reduce the average noise level. How often then after the initial period AP in the further this speed interval is traversed, may be different. For example, with a
- Sorption drying device 12 the removal of water in the first few minutes is particularly large (see Figure 5), in the further example. predominantly at the minimum speed, e.g. DMI of the interval, e.g. IV be worked, also to reduce the noise and energy requirements. In particular, is also a shorter one
- Drying phase TG variable in the manner of a sine curve between maximum and minimum values.
- the speed curve DV is variable over at least part of the drying phase in the manner of a step function between maximum and minimum values.
- Maximum or minimum speeds can be kept for several minutes.
- hybrids or other curve characteristics are possible. For example, a sawtooth-shaped path through a multiple change is particularly easy be implemented between an upper target speed and a lower target speed of the fan. Between the lower setpoint speed and the upper setpoint speed, the speed increases substantially linearly. By contrast, the speed drops substantially linearly between the upper setpoint speed and the lower setpoint speed.
- the fan is controlled in this way, in particular by the control device CO is controlled via a control line 20, that the higher target speed such. DMA of the fan for a shorter period of time than the opposite lower target speed such. DMI is approached.
- the rotational speed DR of the blower 17 during the drying phase TG - outside a start-up and an outflow phase of the blower - is at a (speed) interval, e.g. IV between at least one, in particular specifiable, basolute maximum speed such. DMA (see, for example, Figure 3) and at least an absolute minimum speed such as e.g. Held DMI, so does not fall to zero, so the
- Speed limit such as DMA and higher than the lower speed limit DMI of this interval, e.g. IV.
- the interval can in particular be selected so that the noise level falls below a set limit on average. Due to the independence of the controller, the noise level is the same every time.
- the rotational speed is first of all raised to a maximum rotational speed, such as DMA, for example, and subsequently lowered to a minimum rotational speed, such as, for example, DMI of the interval.
- a maximum rotational speed such as DMA
- a minimum rotational speed such as, for example, DMI of the interval.
- the respective selected minimum speed (minimum) and maximum speed (maximum value) of the speed variation range determined for the speed variation is preferably outside the speed range established during the initial start or run of the fan.
- the minimum speed is in particular one of zero
- first lower target speed absolute low of the speed variation interval
- second, upper setpoint speed maximum value of the speed variation value interval
- a value is expedient which is at least 5000 revolutions per minute, in particular between 5000 and 6000 revolutions per minute (see FIG. 3).
- the distance between the lower or lower speed and the upper, higher speed is chosen in particular by more than 1000 revolutions per minute.
- the respective minimum value of the setpoint speed is expediently more than 5% below the respective maximum value of the setpoint speed and thus clearly above any tolerance fluctuations of a variable-speed motor.
- a speed variation between the lows and peaks is conveniently chosen to fall within a range of auditory perception that is perceived or accepted by users of dishwashers to be uncritical. If, according to an advantageous development of the invention, the rotational speed of the blower passes at least twice the (speed) interval between the maximum and minimum speed over the drying phase, a high change in the air flow can be effected so that the most varied local distributions of the (air) flow are realized in the washing compartment are.
- the time period for the change between the first setpoint speed and the second setpoint speed different therefrom is expediently at least 30 seconds, in particular between 1 minute and 5 minutes.
- the changes in the volume flow shown in mechanically uninfluenced exhaust port 9 can also via actuators whose cross-section and / or
- Outflow direction are influenced in phases.
- an actuator can cause a pivoting of the exhaust opening 9 about its vertical axis 18.
- the variation of the volume flow over at least one of the exhaust opening 9 associated, controllable closure member 19 be effected. This is arranged in Figure 1 1 and can interrupt the leading to the exhaust opening 9 air flow wholly or partially.
- the circuit in particular the input and output
- this closure member 19 may vary periodically or otherwise and is indicated in Figure 1 1 as a graph over time t. From the control device CO, in particular the control unit, with the program deposit leads out a
- valve may be provided as a closure member 19, for example, a rotating air stream sector (not shown) with open and closed areas, for example, continuously rotating and thereby alternately blocks the air flow (partially) or releases.
- the open areas may extend, for example, over the circumference of different sizes. Again, therefore, is not strict Periodicity required, but the opening and closing times can vary over the drying time.
- a variation of the volumetric flow and / or the exit velocity of the air introduced into the interior of the rinsing container through the blow-off opening can be brought about simply by a rotatable disk or other closure element which has only a single opening and is otherwise closed. Depending on whether this one opening is completely made to coincide with the exhaust opening, is brought only partially with the exhaust opening to cover and / or the closed area or the covering of the closure element completely covers the exhaust opening and thus closes, and in which temporal Sequence and duration of the opening, partial closing and / or complete closing of the exhaust opening is performed, alternate local
- the driving force of the closure member 19 may be effected via its own actuators. Also, a tap from a motor for the fan 17 is e.g. possible via a reduction gearbox.
- the exhaust opening 9 at least one movable mechanical
- Control means such as an air deflector, a direction variable nozzle, a movable flap or the like, be assigned, so that the outlet cross-section (and thus the exit velocity of the air) and / or the outlet direction AR varies over the duration of the drying phase. This too can alternate alternately between extreme positions, so that curves similar to those in FIGS. 3 and 4 can result for the cross-section or the blow-off direction.
- flaps or the like can also be controlled by the varying air flow itself, so that they are different
- a control line 20 controls the fan speed and another control line 20 for Influencing the exhaust opening 9 is provided.
- a switching element 22 at the outlet of air from the washing compartment 2, ie in the region of the air outlet opening 23 of the washing compartment and / or the suction opening of the air duct 24, can also be influenced via a third control line 20 to temporarily trap air there by closing an overpressure and temporarily produce a free passage.
- the invention therefore provides both an improved drying with the same energy input and an independence of the drying of the respective load.
- the solution is particularly customer-oriented and offers through the speed reductions with different operating points of the blower 17 without loss of effectiveness a reduced noise level.
- CO control device in particular control unit
Landscapes
- Washing And Drying Of Tableware (AREA)
- Drying Of Solid Materials (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102014222539.6A DE102014222539A1 (de) | 2014-11-05 | 2014-11-05 | Geschirrspülmaschine mit einer Trocknungseinrichtung |
PCT/EP2015/074848 WO2016071154A1 (de) | 2014-11-05 | 2015-10-27 | Geschirrspülmaschine mit einer trocknungseinrichtung |
Publications (2)
Publication Number | Publication Date |
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EP3214990A1 true EP3214990A1 (de) | 2017-09-13 |
EP3214990B1 EP3214990B1 (de) | 2022-04-27 |
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EP15785123.9A Active EP3214990B1 (de) | 2014-11-05 | 2015-10-27 | Geschirrspülmaschine mit einer trocknungseinrichtung |
Country Status (5)
Country | Link |
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US (1) | US10709309B2 (de) |
EP (1) | EP3214990B1 (de) |
CN (1) | CN107072463B (de) |
DE (1) | DE102014222539A1 (de) |
WO (1) | WO2016071154A1 (de) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102017223258A1 (de) | 2017-07-18 | 2019-01-24 | BSH Hausgeräte GmbH | Geschirrspülmaschine mit zumindest einer Lufttrocknungseinrichtung |
DE102018217549A1 (de) * | 2018-10-12 | 2020-04-16 | BSH Hausgeräte GmbH | Haushaltsgerät |
CN109549586B (zh) * | 2018-12-04 | 2020-06-26 | 珠海格力电器股份有限公司 | 洗碗机烘干方法、洗碗机控制方法和洗碗机 |
CN109662674A (zh) * | 2018-12-14 | 2019-04-23 | 佛山市顺德区美的洗涤电器制造有限公司 | 用于洗碗机的干燥装置及具有其的洗碗机 |
DE102019201929A1 (de) * | 2019-02-14 | 2020-08-20 | BSH Hausgeräte GmbH | Steuerlogik für den koordinierten Betrieb zwischen einer Haushalts- Geschirrspülmaschine und einer als Haushaltsgerät vorgesehenen Luftabzugs- und/oder Luftbehandlungsvorrichtung, sowie zugehöriges Steuerverfahren, dafür ausgebildete Haushalts- Geschirrspülmaschine und Luftabzugs- und/oder Luftbehandlungsvorrichtung |
CN110251020B (zh) * | 2019-06-19 | 2021-06-11 | 佛山市百斯特电器科技有限公司 | 一种送风控制的方法及洗碗机 |
CN110279367B (zh) * | 2019-06-19 | 2021-06-11 | 佛山市百斯特电器科技有限公司 | 一种控制柜门的方法及洗碗机 |
DE102019214045A1 (de) * | 2019-09-16 | 2021-03-18 | BSH Hausgeräte GmbH | Haushaltsgeschirrpülmaschine mit zumindest einer Lufttrocknungseinrichtung |
KR20210138422A (ko) * | 2020-05-12 | 2021-11-19 | 엘지전자 주식회사 | 식기세척기 |
DE102021207644A1 (de) * | 2021-07-19 | 2023-01-19 | BSH Hausgeräte GmbH | Haushaltsgeschirrspülmaschine mit einem Sorptionstrocknungssystem sowie zugehöriges Verfahren zum Durchführen eines Energiespar- Geschirrspülprogramms |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
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JPH0819502A (ja) * | 1994-07-06 | 1996-01-23 | Matsushita Electric Ind Co Ltd | 食器洗い機 |
DE102005004089A1 (de) * | 2004-12-09 | 2006-06-14 | BSH Bosch und Siemens Hausgeräte GmbH | Geschirrspülmaschine mit einer Sorptionstrockenvorrichtung und Verfahren zum Betreiben derselben |
US7887643B2 (en) * | 2005-04-18 | 2011-02-15 | Illinois Tool Works, Inc. | Dishwasher with counter-convection air flow |
DE102005023428A1 (de) * | 2005-05-20 | 2006-11-23 | Premark Feg L.L.C. (N.D.Ges.D. Staates Delaware), Wilmington | Gewerbliche Geschirrspülmaschine |
KR100712277B1 (ko) * | 2005-12-16 | 2007-04-27 | 주식회사 대우일렉트로닉스 | 식기 세척기의 건조용 송풍 방향 조절 구조 |
JP4211866B1 (ja) * | 2007-12-14 | 2009-01-21 | パナソニック株式会社 | 食器洗い乾燥機 |
DE102008040789A1 (de) | 2008-07-28 | 2010-02-04 | BSH Bosch und Siemens Hausgeräte GmbH | Geschirrspülmaschine mit Sorptionstrocknungsvorrichtung |
RU2536552C2 (ru) * | 2008-07-28 | 2014-12-27 | Бсх Бош Унд Сименс Хаусгерете Гмбх | Посудомоечная машина с системой сорбционной сушки |
EP2328453B1 (de) * | 2008-08-27 | 2019-06-12 | BSH Hausgeräte GmbH | Verfahren zum betreiben einer geschirrspülmaschine |
US10295256B2 (en) * | 2009-02-04 | 2019-05-21 | Electrolux Home Products, Inc. | Dishwasher, a door assembly for the dishwasher, and an associated method for drying dishware |
EP2371258A3 (de) * | 2011-06-06 | 2012-03-07 | V-Zug AG | Geschirrspüler mit Türspaltlüftung |
GB2512988B (en) * | 2013-02-12 | 2015-06-10 | Lg Electronics Inc | Dishwasher and method of controlling the same |
JP6145637B2 (ja) * | 2013-04-23 | 2017-06-14 | パナソニックIpマネジメント株式会社 | 食器洗い乾燥機 |
DE102013210468B3 (de) * | 2013-06-05 | 2014-10-30 | Premark Feg L.L.C. | Verfahren zum Betreiben einer Spülmaschine sowie Spülmaschine |
KR102188109B1 (ko) * | 2014-05-30 | 2020-12-07 | 삼성전자주식회사 | 식기세척기 |
-
2014
- 2014-11-05 DE DE102014222539.6A patent/DE102014222539A1/de active Pending
-
2015
- 2015-10-27 WO PCT/EP2015/074848 patent/WO2016071154A1/de active Application Filing
- 2015-10-27 EP EP15785123.9A patent/EP3214990B1/de active Active
- 2015-10-27 US US15/521,915 patent/US10709309B2/en active Active
- 2015-10-27 CN CN201580060000.3A patent/CN107072463B/zh active Active
Also Published As
Publication number | Publication date |
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CN107072463B (zh) | 2020-02-18 |
CN107072463A (zh) | 2017-08-18 |
DE102014222539A1 (de) | 2016-05-12 |
WO2016071154A1 (de) | 2016-05-12 |
EP3214990B1 (de) | 2022-04-27 |
US20170311771A1 (en) | 2017-11-02 |
US10709309B2 (en) | 2020-07-14 |
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