EP2449942A2 - Lave-vaisselle, notamment lave-vaisselle ménager - Google Patents
Lave-vaisselle, notamment lave-vaisselle ménager Download PDFInfo
- Publication number
- EP2449942A2 EP2449942A2 EP11186159A EP11186159A EP2449942A2 EP 2449942 A2 EP2449942 A2 EP 2449942A2 EP 11186159 A EP11186159 A EP 11186159A EP 11186159 A EP11186159 A EP 11186159A EP 2449942 A2 EP2449942 A2 EP 2449942A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- fat
- dishwasher
- program
- liquor
- sensor
- 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.)
- Withdrawn
Links
- 238000010438 heat treatment Methods 0.000 claims abstract description 32
- 230000008021 deposition Effects 0.000 claims abstract description 21
- 238000000034 method Methods 0.000 claims abstract description 15
- 239000003925 fat Substances 0.000 claims description 103
- 238000004140 cleaning Methods 0.000 claims description 23
- 239000007788 liquid Substances 0.000 claims description 15
- 239000007787 solid Substances 0.000 claims description 15
- 238000005086 pumping Methods 0.000 claims description 8
- 239000012459 cleaning agent Substances 0.000 claims description 6
- 239000003599 detergent Substances 0.000 claims description 5
- 238000005259 measurement Methods 0.000 claims description 2
- 239000008237 rinsing water Substances 0.000 abstract description 5
- 238000001035 drying Methods 0.000 description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 13
- 238000005406 washing Methods 0.000 description 8
- 239000004519 grease Substances 0.000 description 5
- 239000007921 spray Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 208000008589 Obesity Diseases 0.000 description 2
- 238000011109 contamination Methods 0.000 description 2
- 238000004851 dishwashing Methods 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 235000020824 obesity Nutrition 0.000 description 2
- 239000013042 solid detergent Substances 0.000 description 2
- 230000001960 triggered effect Effects 0.000 description 2
- 229910021536 Zeolite Inorganic materials 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 238000011086 high cleaning Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 230000033764 rhythmic process Effects 0.000 description 1
- 230000001953 sensory effect Effects 0.000 description 1
- 239000010457 zeolite Substances 0.000 description 1
Images
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
- A47L15/0057—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
- A47L15/0018—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
-
- 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
- A47L2401/34—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
- A47L2501/34—Change machine operation from normal operational mode into special mode, e.g. service mode, resin regeneration mode, sterilizing mode, steam mode, odour eliminating mode or special cleaning mode to clean the hydraulic circuit
Definitions
- the invention relates to a dishwasher, in particular a domestic dishwasher, with the at least one program section for dissolving fat deposits on to be cleaned and / or dried items to be washed and / or in the hydraulic circuit of the dishwasher can be carried out during the program section to release fat deposits in the hydraulic circuit circulated rinsing liquor is heated to a Fettablinatetemperatur at least with a heater.
- Dishwashers in particular domestic dishwashers, continuous wash programs for cleaning and drying of items to be washed, a plurality of part program steps, such.
- prewash cleaning, intermediate rinsing, rinsing and drying may include.
- the energy consumption of dishwashers can be reduced, in the z.
- the maximum temperature to the rinsing liquor ie water added to cleaning agents, heated during the cleaning part program step, is reduced. Due to their high cleaning performance at a comparatively low temperature in the range of 40 ° C., so-called low-temperature cleaners allow the cleaning performance to be kept substantially constant despite the lowered temperature. However, this has the consequence that it can lead to unwanted fat deposition, z. B.
- the temperature of the rinsing liquor for a predetermined period of time at least to the value of Fettabinatetemperatur, wherein the predetermined period of time until one end of a pumpdown of rinsing liquor for conveying out It therefore no longer deactivates the heating of the dishwasher after reaching a maximum temperature with the result that the rinsing liquor cools with increasing time until it is conveyed by pumping out of the dishwasher at the end of the respective program section, but it becomes by a continuous or temporary, z.
- the circulated rinsing liquor with the dissolved fats is kept at the fat removal temperature until this rinsing liquor has been conveyed out of the dishwasher by a pumping operation, so that back soiling is prevented. Therefore, it is expediently during the pumping process to a complete Abpumpvorgang in which the entire circulating in the dishwasher rinsing liquor is conveyed from the dishwasher to prevent pollanschmutzung by remaining in the dishwasher Spülflottenreste.
- the fat removal temperature is selected such that an added detergent for cleaning the items to be washed reaches its maximum effect.
- the fat removal temperature may be in the range of 40 ° C to 70 ° C.
- a solid fat sensor is preferably provided. With this solid fat sensor, the implementation of such a program section for releasing fat deposition can be triggered automatically, ie without intervention of an operator. Further, during a heating operation during a program portion for releasing grease deposit with such a solid-state grease sensor are detected, whether a sufficient temperature has been reached at which dissolve the fat deposits, as this can be detected by such a solid fat sensor.
- the solid fat sensor is designed as a turbidity sensor whose output signal can be influenced by fat deposition on measuring surfaces of the turbidity sensor.
- the advantage here is that z. B. such a turbidity sensor can also be used to detect the degree of contamination of the circulating wash liquor, and to adapt to the detected degree of soiling the program flow of the dishwasher, in the automatically heavy soiling a particularly intensive cleaning is made and vice versa with a low pollution z. B. the water consumption of the dishwasher is reduced.
- a liquid fat sensor for detecting fats dissolved in the rinsing liquor is preferably provided.
- the fats dissolved by the fat disbonding program section can be detected directly in the rinsing liquor, and not only conversely, as by using a solid fat sensor for detecting fat deposition.
- a liquid fat sensor for detecting fats dissolved in the rinsing liquor allows a more precise adaptation of the program segment with respect to its temperature, to which the rinsing liquor must be heated in order to dissolve fat deposits.
- the program section for releasing grease deposits is a partial program step of a washing program having a plurality of partial program steps, while the items to be washed can be whipped with heated wash liquor.
- the program section for releasing fat deposits is an integral part of at least one washing program for cleaning and / or drying items to be washed.
- the program section for releasing fat deposits may be stored as an integral part in one of a plurality of selectable washing programs that are then selected by the operator, or the program section for releasing fat deposits into one of an operator is triggered by corresponding sensor signals or at a fixed rhythm selected wash program inserted.
- the program section for releasing fatty deposits is a partial program section having a wash program having a plurality of partial program sections, while wash ware to be cleaned can be acted upon by washing liquor mixed with cleaning agents.
- the program section for dissolving fat deposits is integrated in a part program section cleaning a wash program, in which by cleaning agent addition while heating the wash liquor maximum cleaning performance is achieved.
- cleaning agents also increase the fat-dissolving effect of the rinsing liquor.
- the solid fat sensor for detecting fat deposition and / or the liquid fat sensor for detecting fats dissolved in the rinsing liquor is connected in a transferring manner to a heating control / measuring signal, the heating control being at least above and / or below a predetermined limit value for the Measuring signal activates and / or deactivates the heater control associated with the heating.
- the solid fat sensor for detecting fat deposition and / or the liquid fat sensor for detecting fats dissolved in the washing liquor allows the fat removal temperature to be attained to be adjusted during the program step for dissolving fat deposition to the type of the respective fat deposit and associated fat removal temperature. Thus, unnecessarily high temperatures are avoided and energy saved.
- the invention further relates to a method for operating a dishwasher, in particular a domestic dishwasher, during which at least one program section for dissolving fat deposits on to be cleaned and / or to be dried items and / or in the hydraulic circuit of the dishwasher is performed, during the program section to Dissolving fat deposition in the hydraulic circuit circulated rinsing liquor is heated with the heater at least to a Fettablinatetemperatur, which is provided according to the invention that during the program section to dissolve fat deposits by at least temporary operation of the heating, the temperature of the rinsing water for a predetermined period of time at least to the value of Fettablinatetemperatur is maintained, wherein the predetermined period of time extends to the end of a Abpumpvorgangs of wash liquor for feeding out of wash liquor from the dishwasher.
- FIG. 1 Referenced.
- a dishwasher designed as a household dishwasher GS which has a washing container SB, in the dishes to be cleaned on extendable crockery baskets (not shown) can be arranged.
- a hydraulic system is provided, the z. B. may have rotating spray arms (not shown), the liquid-conducting with a circulating pump (not shown) are connected, can be promoted with the dripping of the items to be washed water to the spray arms.
- a heating device (not shown) is provided for heating the water in the hydraulic system.
- a door TU is provided to open the rinse container in order to load and / or unload the baskets.
- the dishwasher GS has a control panel BL with wash program selection switches (not shown) and optical display means AZ.
- an addition unit ZU On the inside of the door TU, d. H. with the door TU in the interior of the washing container SB, an addition unit ZU is arranged, which can be provided with detergent and rinse aid before starting the dishwasher.
- the addition unit ZU communicates with the control means SM of the dishwasher GS, for example in the form of control electronics, in order to effect cleaning at least during a partial program step cleaning R and during a partial program step rinsing K a rinse aid addition.
- the addition unit ZU is designed to dispense a pulverulent or tablet-form solid detergent while the rinse aid is in liquid form.
- an addition unit which allows the delivery of both solid detergent and rinse aid or a solid rinse aid and a liquid detergent.
- the dishwasher GS has a turbidity sensor (not shown) arranged in the sump, with which, on the one hand, the degree of contamination of the circulated rinsing liquor can be detected, and on the other hand serves as a solid fat sensor for detecting fat deposition, since these fat deposits influence the measuring surface of the turbidity sensor.
- the turbidity sensor is connected by measuring signal technology by a corresponding signal line (not shown) to a heating control (not shown), which in turn is connected to the heating by lines (not shown).
- a liquid fat sensor (not shown) for detection is dissolved Fats provided, which is arranged in a portion of a supply line (not shown) to the spray arm and also via signal lines (not shown) is messsignaltechnisch with the heating control in communication.
- the heating control can be an independent module or part of a control electronics of a control unit for controlling the dishwasher GS, in particular for carrying out one or more washing programs, each having a plurality of part program sections.
- washing program which in addition to the partial program steps cleaning R and rinse K includes the further partial program steps pre-wash V, intermediate rinse Z and drying T, wherein said individual sub-program steps can also be hidden and / or executed multiple times.
- the items to be washed are pre-cleaned with unheated water without the addition of detergent or rinse aid, in order to dissolve and remove coarse soiling.
- detergent or rinse aid in order to dissolve and remove coarse soiling.
- a refilling of the dishwasher GS is performed before the subprogram cleaning R, in which by the heating the recirculated rinsing liquor or water up to a maximum temperature T MAX of eg 70 ° C is heated and then slowly cooled again when the heater is turned off.
- T MAX a maximum temperature of eg 70 ° C is heated and then slowly cooled again when the heater is turned off.
- the maximum temperature T MAX is above a fat-dissolving temperature FT, so that it is ensured that dissolve fat deposits.
- the heating control deactivates the heating, so that the rinsing fluid circulated by the circulating pump slowly cools down to a value which corresponds to the fat removal temperature FT.
- the achievement of the fat removal temperature FT can by circulating the temperature Rinse liquor by means of a temperature sensor (not shown), or by the fact that fat deposits are detected on the turbidity sensor or a decrease in the dissolved fats in the rinsing liquor are detected with the liquid fat sensor for detecting dissolved in the rinsing fats, wherein both the measurement signals of the heating control performed become.
- the heating control makes a comparison with selected, stored reference values, in order to re-activate the heating on an over and / or underruns, so that the circulated rinsing liquor is maintained at least at a temperature corresponding to the fat removal temperature, so that remindanschmutzisme by fat deposition are avoided.
- the subprogram step cleaning R is followed by a subprogram step intermediate rinsing Z, which is connected to a draining process of the used rinse liquor and a refill of the dishwasher GS with water and during which the cleaned ware is treated with water to remove cleaner residues and rinse aid residues.
- the dissolved fats from the dishwasher GS are promoted by the pumping. It is thus achieved that the items to be cleaned and / or plastic parts of the dishwasher, such as pumps, sieves or hoses, which form the hydraulic circuit of the dishwasher, are substantially free of fatty deposits.
- the rinse K which is again introduced by a pumpdown and refilling the dishwashing GS with water.
- the water added with rinse aid is heated up to a drying temperature TT by starting up the heating and during this time the wash ware is charged with this liquid.
- the drying temperature TT is chosen so high that a substantially stain-free drying of the items to be washed is ensured by self-drying.
- the dishwasher GS has a drying system for drying items that, for example, a reversible dehydratable material such. B. zeolite has, is passed through the humid air from the washing compartment of the dishwasher for dehumidifying, heating to the high temperatures is not necessary.
- the last part program step drying T during which no loading of the now cleaned items with rinse liquid takes place, but the items to be washed z. B. dries due to its own heat or dried by commissioning of the drying system, so that at the end of the partial program step drying T cleaned and dried items can be removed from the washing container SB of the dishwasher GS.
- z. B. during the sub-program step cleaning R may be additionally provided that during the wash program, the maximum cleaning temperature T MAX is raised in the presence of obesity when z. B. this has been detected sensory or rinsing of the dishwasher GS is provided by the program.
- the energy consumption can be provided to control the hydraulic system with the spray arm and the circulation pump such that an admission of items to be washed with a heated flushing front is avoided in the z. B. the circulating pump is operated at low speed and so exits the spray arm so that it does not reach the ware.
Landscapes
- Washing And Drying Of Tableware (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102010043330A DE102010043330A1 (de) | 2010-11-03 | 2010-11-03 | Geschirrspülmaschine, insbesondere Haushalts-Geschirrspülmaschine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP2449942A2 true EP2449942A2 (fr) | 2012-05-09 |
| EP2449942A3 EP2449942A3 (fr) | 2017-06-07 |
Family
ID=45098854
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP11186159.7A Withdrawn EP2449942A3 (fr) | 2010-11-03 | 2011-10-21 | Lave-vaisselle, notamment lave-vaisselle ménager |
Country Status (2)
| Country | Link |
|---|---|
| EP (1) | EP2449942A3 (fr) |
| DE (1) | DE102010043330A1 (fr) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3944804A1 (fr) * | 2020-07-28 | 2022-02-02 | Arçelik Anonim Sirketi | Lave-vaisselle comprenant un dispositif de chauffage |
| US20230042630A1 (en) * | 2021-08-06 | 2023-02-09 | Haier Us Appliance Solutions, Inc. | Dishwashing appliance clogged drain line prevention |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19758064B4 (de) * | 1997-12-29 | 2016-11-24 | BSH Hausgeräte GmbH | Verfahren zur Programmsteuerung von wasserführenden Haushaltgeräten, insbesondere Geschirrspülmaschinen |
| DE10257826A1 (de) * | 2002-05-16 | 2003-11-27 | Electrolux Home Prod Corp | Geschirrspülmaschine und Verfahren zum Betreiben einer Geschirrspülmaschine bei Verwendung von einem Kombinationspräparat mit mehreren Wirkstoffen |
| DE102008040647A1 (de) * | 2008-07-23 | 2010-01-28 | BSH Bosch und Siemens Hausgeräte GmbH | Wasserführendes Haushaltsgerät, insbesondere Geschirrspül- oder Waschmaschine |
| DE102009002147A1 (de) * | 2009-04-02 | 2010-10-14 | BSH Bosch und Siemens Hausgeräte GmbH | Geschirrspülmaschine |
-
2010
- 2010-11-03 DE DE102010043330A patent/DE102010043330A1/de active Pending
-
2011
- 2011-10-21 EP EP11186159.7A patent/EP2449942A3/fr not_active Withdrawn
Non-Patent Citations (1)
| Title |
|---|
| None |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3944804A1 (fr) * | 2020-07-28 | 2022-02-02 | Arçelik Anonim Sirketi | Lave-vaisselle comprenant un dispositif de chauffage |
| US20230042630A1 (en) * | 2021-08-06 | 2023-02-09 | Haier Us Appliance Solutions, Inc. | Dishwashing appliance clogged drain line prevention |
| US11839340B2 (en) * | 2021-08-06 | 2023-12-12 | Haier Us Appliance Solutions, Inc. | Dishwashing appliance clogged drain line prevention |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102010043330A1 (de) | 2012-05-03 |
| EP2449942A3 (fr) | 2017-06-07 |
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Effective date: 20171208 |