EP2160970A2 - Weight sensing method for dishwashers - Google Patents
Weight sensing method for dishwashers Download PDFInfo
- Publication number
- EP2160970A2 EP2160970A2 EP09167676A EP09167676A EP2160970A2 EP 2160970 A2 EP2160970 A2 EP 2160970A2 EP 09167676 A EP09167676 A EP 09167676A EP 09167676 A EP09167676 A EP 09167676A EP 2160970 A2 EP2160970 A2 EP 2160970A2
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- EP
- European Patent Office
- Prior art keywords
- water
- machine
- level
- rack
- tube
- 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.)
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Classifications
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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
- A47L15/42—Details
- A47L15/4244—Water-level measuring or regulating arrangements
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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
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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
- 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
- A47L2401/04—Crockery or tableware details, e.g. material, quantity, condition
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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
- A47L2401/00—Automatic detection in controlling methods of washing or rinsing machines for crockery or tableware, e.g. information provided by sensors entered into controlling devices
- A47L2401/09—Water level
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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
- A47L2501/00—Output in controlling method of washing or rinsing machines for crockery or tableware, i.e. quantities or components controlled, or actions performed by the controlling device executing the controlling method
- A47L2501/05—Drain or recirculation pump, e.g. regulation of the pump rotational speed or flow direction
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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
- 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
- A47L2501/20—Spray nozzles or spray arms
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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
- 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
- A47L2501/26—Indication or alarm to the controlling device or to the user
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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
- 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
- A47L2501/32—Stopping or disabling machine operation, including disconnecting the machine from a network, e.g. from an electrical power supply
Definitions
- the present invention relates to dishwashers that sense the dish load on upper and lower racks individually.
- the load sensing systems in dishwashers are realized by means of sensors disposed in the machine. These systems can be exemplified with the published patent applications DE10253017 and EP1252857 , in which the measurement is made according to the dirtiness of water that is used.
- load sensing is conducted by instantaneously monitoring the water level in the machine. This sensing can also be made separately for each rack.
- water-level measuring units are employed on the washing system of the machine.
- a tube of a length that corresponds to the distance between the lower starting point and the top ending level of the pool water level and a floating element, which comprise a magnetic core or whose material has magnetic features, is provided in said tube.
- Water in the tube moves the floating element according to the water's buoyancy force principle.
- the movement of the floating part in the tube (the level of water) is sensed by a coil system with a magnetic reader, coiled around the tube.
- the water level is read with the aid of a presostate, which is placed at the tip of a tube that is in connection with the pool.
- the presostate transmits signals of different frequencies, so that the water level can be determined.
- the control unit of the dishwasher conducts the entire control of the machine, such as operating the valves, pumps, and heaters, and managing the program steps, etc., and additionally, it determines the dish load with the aid of water level measuring units and the washing system.
- the water level in the pool of the machine is measured instantaneously, such measured instant values are reported to the control unit, so that the machine, by itself, measures instant water losses and accordingly determines the load rate, automatically senses the distribution of this load to the lower and upper racks, and carries out the washing steps by means of a predefined algorithm according to this load.
- the load density of dishes placed in the machine's lower and upper racks can be calculated.
- the washing intensity at that part is increased, such that a more efficient washing is ensured and the washing performance is developed.
- the machine is enabled to make the program selection automatically, so that once the washing step is determined, the determination of the load levels of dishes placed into the machine is taken over from the user's initiative.
- any abnormal water level alterations e.g. any uncontrolled intake of water into the machine, or the case in which pans or similar utensils in the machine are turned upside down so that their interior is filled with water, are sensed automatically.
- the machine does not proceed with the normal washing step, but generates an error signal to the user.
- the dishwasher may face difficulties in draining out the water.
- the water level is measured during the draining-out period as well, and when the drained-out amount of water is not in compliance with what has been determined by this period, this case is interpreted as a potential filter occlusion or extreme foam formation, so that the machine is stopped and an error signal is generated for the user.
- An aim of this invention is to ensure the calculation of the dish load by instantaneously measuring the water level in the dishwasher.
- Another aim of this invention is to ensure the determination of the load density of dishes placed in the dishwasher for the upper rack and for the lower rack separately.
- a further aim of the invention is to enable the dishwasher to determine the dishwasher load by itself.
- Yet another aim of the present invention is to enable the dishwasher to automatically determine the washing steps according to the load density present at the lower and upper racks and to conduct washes at differing intensities at the lower and upper racks.
- Yet another aim of the present invention is to make it possible to easily adapt the water-level measuring units to currently-used dishwashers.
- Still another aim of the present invention is to provide a load sensing system for currently-used dishwashers, by making use of the current components of such currently-used dishwashers and of inexpensive and reliable water-level measuring units.
- the operation of the washing system of a standard dishwasher is as follows. Before washing is started, the water taken into the machine from the mains via the valves is filled into a pool (7), including the machine' s filter system (6) as well. After a certain volume of water is taken in, the mains supply is cut off, then the water in the pool (7) is sucked by means of a pump (1) and passed through a heater (3) by means of an interconnection tube (2). Heated water is directed to the nozzle tubes (8) in connection with the upper nozzles (5) and lower nozzles (4) over the pool.
- the washing operation is carried out by delivering the water, which is pressurized by means of the washing pump (1), to the dishes from the lower nozzles (4) and upper nozzles (5).
- Water output from the pump (1) can be separately guided to the lower and upper nozzles (4, 5). This operation can be made by means of a part, i.e. a divisor.
- the water level present in the machine pool (7) can be read by two alternative applications.
- a tube (23) is disposed, which is in connection with the pool (7), and has a length that corresponds to the distance from the lowest starting point to the top ending level of the machine's water level.
- a floating element (32) which comprise a magnetic core or whose material has magnetic features. Water in the tube (23) moves the floating element (32) according to the water's buoyancy force principle.
- the water level in the machine is read by means of a presostate (41) disposed at the tip of the tube (23) (by referring to water pressure).
- the water level data read by means of the coil (31) or the presostate (41) is instantly reported to the machine's control panel.
- the control unit of the dishwasher conducts the entire control of the machine, such as operating the valves, pumps, and heaters, and managing the program steps, etc., and additionally, it determines the dish load with the aid of said water-level measuring units and the washing system.
- the water level in the machine is measured by any of the foregoing water level measurement approaches (presostate (41) or coil (31)), and this measurement result is reported to the machine's control unit.
- the initial water level is the level (a) illustrated in Figure 2 .
- the pump (1) is stopped, and waited for a certain period of time so that the water present at the upper rack (21) drains away, and then the water level is measured once more.
- This measured value is the level (b) illustrated in Figure 2 . Since the dishes present at the machine's upper rack (21) shall retain some amount of water, the second measured value (level b) is lower than the first measured value (value a).
- the dish load present at the upper rack (21) is determined by the control unit according to the difference between these two values.
- the load density at the machine's upper rack (21) is revealed according to the extent of water loss.
- the pump (1) is stopped, a certain time is allowed for the water present at the lower rack (22) to drain away, and then the water level is measured once more.
- This measured value is the level (c) illustrated in Figure 2 . Since the dishes present at the machine's lower rack (22) shall likewise retain some amount of water, the third measured value (level c) will be lower than the second measured value (value b).
- the dish load present at the lower rack (22) is determined by the control unit according to the difference between these two values.
- the load density at the machine's lower rack (22) is similarly revealed according to the extent of water loss.
- the machine's control unit can automatically change the wash algorithm according to the load density.
- the wash to be conducted at the upper rack (21) may have a differing intensity from that to be conducted at the lower rack (22).
- Maximum water loss and minimum water loss data are loaded in advance onto the control unit as reference values for determining the load density.
- the machine decides on the extent of density of the load, according to the extent of water loss as measured by referring to these values. So the present invention enables the dishwasher to conduct each operation by itself for measuring the load and takes over the determination of the load density from the user's initiative.
- any abnormal water level alterations e.g. any uncontrolled intake of water into the machine, or the case in which pans or similar utensils in the machine are turned upside down so that their interior is filled with water, are sensed automatically.
- the machine does not proceed with the normal washing step, but generates an error signal for the user.
- the dishwasher may face difficulties in draining out the water.
- the water level is measured during the draining-out period as well, and when the amount of water drained-out does not correspond to what has been determined by this period, this case is interpreted as a potential filter occlusion or extreme foam formation, so that the machine is stopped and an error signal is generated for the user.
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- Washing And Drying Of Tableware (AREA)
Abstract
Description
- The present invention relates to dishwashers that sense the dish load on upper and lower racks individually.
- During a normal wash in dishwashers, this operation is conducted by the circulation of the water transferred by means of a pump through the washing nozzles, and recirculation of the water, which accumulates in a pool, back to the nozzles by means of the pump. In these machines, the use of different washing programs according to the amount of dishes to be cleaned becomes significant with respect to the consumption of water, cleaning agent, and energy.
- The load sensing systems in dishwashers according to the prior art are realized by means of sensors disposed in the machine. These systems can be exemplified with the published patent applications
DE10253017 andEP1252857 , in which the measurement is made according to the dirtiness of water that is used. - In the dishwasher equipped with the load sensing feature according to the present invention, load sensing is conducted by instantaneously monitoring the water level in the machine. This sensing can also be made separately for each rack.
- In order to determine the water level in the machine, water-level measuring units are employed on the washing system of the machine. As an alternative embodiment for this purpose, there is provided a tube of a length that corresponds to the distance between the lower starting point and the top ending level of the pool water level and a floating element, which comprise a magnetic core or whose material has magnetic features, is provided in said tube. Water in the tube moves the floating element according to the water's buoyancy force principle. The movement of the floating part in the tube (the level of water) is sensed by a coil system with a magnetic reader, coiled around the tube. Or alternatively, the water level is read with the aid of a presostate, which is placed at the tip of a tube that is in connection with the pool. When the water starts raising or lowering, the presostate transmits signals of different frequencies, so that the water level can be determined.
- The control unit of the dishwasher according to the present invention conducts the entire control of the machine, such as operating the valves, pumps, and heaters, and managing the program steps, etc., and additionally, it determines the dish load with the aid of water level measuring units and the washing system.
- According to the present invention, the water level in the pool of the machine is measured instantaneously, such measured instant values are reported to the control unit, so that the machine, by itself, measures instant water losses and accordingly determines the load rate, automatically senses the distribution of this load to the lower and upper racks, and carries out the washing steps by means of a predefined algorithm according to this load.
- According to the present invention, the load density of dishes placed in the machine's lower and upper racks can be calculated. Thus, according to which rack contains a more dense load, the washing intensity at that part is increased, such that a more efficient washing is ensured and the washing performance is developed. According to the present invention, the machine is enabled to make the program selection automatically, so that once the washing step is determined, the determination of the load levels of dishes placed into the machine is taken over from the user's initiative.
- Additionally, since the amount of water in the machine is measured instantaneously according to the method of the present invention, any abnormal water level alterations, e.g. any uncontrolled intake of water into the machine, or the case in which pans or similar utensils in the machine are turned upside down so that their interior is filled with water, are sensed automatically. Thus, when the water level drops below a predetermined minimum level or exceeds a predetermined maximum level, the machine does not proceed with the normal washing step, but generates an error signal to the user.
- Additionally, in cases of extreme foaming or occlusion of the filter during a normal wash or following the completion of a wash, the dishwasher may face difficulties in draining out the water. According to the present invention, however, the water level is measured during the draining-out period as well, and when the drained-out amount of water is not in compliance with what has been determined by this period, this case is interpreted as a potential filter occlusion or extreme foam formation, so that the machine is stopped and an error signal is generated for the user.
- An aim of this invention is to ensure the calculation of the dish load by instantaneously measuring the water level in the dishwasher.
- Another aim of this invention is to ensure the determination of the load density of dishes placed in the dishwasher for the upper rack and for the lower rack separately.
- A further aim of the invention is to enable the dishwasher to determine the dishwasher load by itself.
- Yet another aim of the present invention is to enable the dishwasher to automatically determine the washing steps according to the load density present at the lower and upper racks and to conduct washes at differing intensities at the lower and upper racks.
- Yet another aim of the present invention is to make it possible to easily adapt the water-level measuring units to currently-used dishwashers.
- Still another aim of the present invention is to provide a load sensing system for currently-used dishwashers, by making use of the current components of such currently-used dishwashers and of inexpensive and reliable water-level measuring units.
- An exemplary dishwasher washing system and exemplary water-level measuring units according to the present invention are illustrated in the annexed figures, wherein:
-
Figure 1 is a general perspective illustration of the washing unit of a dishwasher. -
Figure 2 is a schematic illustration of water levels of a dishwasher. -
Figure 3 is an illustration of a water-level measuring unit for a dishwasher. -
Figure 4 is an illustration of another water-level measuring unit for a dishwasher. - The parts in the figures are numbered one by one and the corresponding terms of these numbers are given below.
- Pump (1)
- Interconnection tube (2)
- Heater (3)
- Lower nozzles (4)
- Upper nozzles (5)
- Filter system (6)
- Pool (7)
- Nozzle tubes (8)
- Upper rack (21)
- Lower rack (22)
- Tube (23)
- Coil (31)
- Floating element (32)
- Presostate (41)
- The operation of the washing system of a standard dishwasher, as illustrated in
Figure 1 , is as follows. Before washing is started, the water taken into the machine from the mains via the valves is filled into a pool (7), including the machine' s filter system (6) as well. After a certain volume of water is taken in, the mains supply is cut off, then the water in the pool (7) is sucked by means of a pump (1) and passed through a heater (3) by means of an interconnection tube (2). Heated water is directed to the nozzle tubes (8) in connection with the upper nozzles (5) and lower nozzles (4) over the pool. The washing operation is carried out by delivering the water, which is pressurized by means of the washing pump (1), to the dishes from the lower nozzles (4) and upper nozzles (5). (Water output from the pump (1) can be separately guided to the lower and upper nozzles (4, 5). This operation can be made by means of a part, i.e. a divisor.) - According to the present invention, the water level present in the machine pool (7) can be read by two alternative applications. In the water-level measuring unit of the first alternative, illustrated in
Figure 3 , a tube (23) is disposed, which is in connection with the pool (7), and has a length that corresponds to the distance from the lowest starting point to the top ending level of the machine's water level. In the tube (23) is provided a floating element (32), which comprise a magnetic core or whose material has magnetic features. Water in the tube (23) moves the floating element (32) according to the water's buoyancy force principle. Here is provided also a coil (31) coiled around the tube (23), thus, the movement of the magnetic featured floating element (32) in the tube (23) is sensed from the changes that occur on the coil's (31) impedance value. Thus the water level in the tube (23) is measured. The water level in the tube (23) is the same with the water level in the machine. - In the water-level measuring unit of the second alternative as illustrated in
Figure 4 , the water level in the machine is read by means of a presostate (41) disposed at the tip of the tube (23) (by referring to water pressure). The water level data read by means of the coil (31) or the presostate (41) is instantly reported to the machine's control panel. Thus, it becomes possible both to determine, if water in the machine is drained out, and if water in the machine reached the overflow level, as well as to sense the dish load in the dishwasher in an automatic manner. For this purpose, the steps of the following method are followed. - In the method for sensing the dish load in dishwashers, the following steps are followed separately both for the upper rack (21) and the lower rack (22),
- the first step of measuring the water level in the machine by means of a water-level measuring unit and of reporting this data to the control unit of said machine;
- the second step of operating the machine's washing pump (1) and thereby rotating the upper nozzles (5) or lower nozzles (4) to some extent;
- the third step of stopping said pump (1) and waiting some time so that the water on the upper rack (21) or lower rack (22) can drain away;
- the forth step of measuring again the water level in the machine by means of said measuring unit;
- the fifth step of determining the load amounts at each rack by means of the control unit, based on the difference between the water levels measured at the first and forth steps;
- The control unit of the dishwasher according to the present invention conducts the entire control of the machine, such as operating the valves, pumps, and heaters, and managing the program steps, etc., and additionally, it determines the dish load with the aid of said water-level measuring units and the washing system.
- In order to determine the dish load, after water is taken in to the machine, first the water level in the machine is measured by any of the foregoing water level measurement approaches (presostate (41) or coil (31)), and this measurement result is reported to the machine's control unit. For instance, the initial water level is the level (a) illustrated in
Figure 2 . - Then, with the machine's washing pump (1) being operated, only the upper nozzles (5) are rotated several times, then the pump (1) is stopped, and waited for a certain period of time so that the water present at the upper rack (21) drains away, and then the water level is measured once more. This measured value is the level (b) illustrated in
Figure 2 . Since the dishes present at the machine's upper rack (21) shall retain some amount of water, the second measured value (level b) is lower than the first measured value (value a). The dish load present at the upper rack (21) is determined by the control unit according to the difference between these two values. The load density at the machine's upper rack (21) is revealed according to the extent of water loss. - Then, with the machine's washing pump (1) being operated again, now only the lower nozzles (4) are rotated several times, then the pump (1) is stopped, a certain time is allowed for the water present at the lower rack (22) to drain away, and then the water level is measured once more. This measured value is the level (c) illustrated in
Figure 2 . Since the dishes present at the machine's lower rack (22) shall likewise retain some amount of water, the third measured value (level c) will be lower than the second measured value (value b). The dish load present at the lower rack (22) is determined by the control unit according to the difference between these two values. The load density at the machine's lower rack (22) is similarly revealed according to the extent of water loss. - Thus the machine's control unit can automatically change the wash algorithm according to the load density. The wash to be conducted at the upper rack (21) may have a differing intensity from that to be conducted at the lower rack (22).
- Maximum water loss and minimum water loss data are loaded in advance onto the control unit as reference values for determining the load density. The machine decides on the extent of density of the load, according to the extent of water loss as measured by referring to these values. So the present invention enables the dishwasher to conduct each operation by itself for measuring the load and takes over the determination of the load density from the user's initiative.
- Besides the two alternatives given above for measuring the water level, other measuring devices, which measures the water level in the machine and reports this to the control unit can also be used. Carrying out the load measurement by means of already-present components of a dishwasher, besides the water-level measuring units, is one of the advantages of the present invention. In other words, it is sufficient to load the algorithm of the load sensing method to the control unit with the steps disclosed above, and to use a water-level detection unit communicating with the control unit.
- Additionally, since the amount of water in the machine is measured instantaneously according to the method of the present invention, any abnormal water level alterations, e.g. any uncontrolled intake of water into the machine, or the case in which pans or similar utensils in the machine are turned upside down so that their interior is filled with water, are sensed automatically. Thus, when the water level drops below a predetermined minimum level or exceeds a predetermined maximum level, the machine does not proceed with the normal washing step, but generates an error signal for the user.
- Additionally, in cases of extreme foaming or occlusion of the filter during a normal wash or following the completion of a wash, the dishwasher may face difficulties in draining out the water. According to the present invention, however, the water level is measured during the draining-out period as well, and when the amount of water drained-out does not correspond to what has been determined by this period, this case is interpreted as a potential filter occlusion or extreme foam formation, so that the machine is stopped and an error signal is generated for the user.
Claims (10)
- A method for sensing the dish load in dishwashers, characterized by comprising the following steps to be conducted separately both for the upper rack (21) and the lower rack (22),• a first step of measuring the water level in the machine by means of a water-level measuring unit and of reporting this data to the control unit of said machine;• a second step of operating the machine's washing pump (1) and thereby rotating the upper nozzles (5) or lower nozzles (4) to some extent;• a third step of stopping said pump (1) and waiting some time so that the water on the upper rack (21) or lower rack(22) can drain away;• a forth step of measuring again the water level in the machine by means of said measuring unit;• a fifth step of determining the load amounts at each rack by means of the control unit, based on the difference between the water levels measured at the first and forth steps.
- A method according to Claim 1, characterized in that each of the upper and lower nozzles (5, 4) is operated at an intensity that is proportional to the load amounts determined for each individual rack (21, 22).
- A method according to Claim 1, characterized in that the water-level measuring unit comprises a tube (23) in connection with a pool (7); a coil (31) coiled around this tube (23), and a floating element (32) with magnetic feature provided in this tube (23).
- A method according to Claim 3, characterized by instantaneously measuring the water level according to impedance changes the floating element (32) generates on the coil (31).
- A method according to Claim 1, characterized in that said water-level measuring unit comprises a tube (23) in connection with the pool (7), and a presostate (41) provided at the tip of said tube (23).
- A method according to Claim 5, characterized in that said presostate (41) measures the water level instantaneously by referring to the water pressure in the tube (23).
- A method according to claim 4 or 6, characterized in that the machine operation is stopped, when the water level drops below a predetermined minimum level, or exceeds over a predetermined maximum level.
- A method according to claim 4 or 6, characterized in that the machine operation is stopped, when the water level measured during the discharge period is not at rates, as determined with the amount of drained-out water.
- A method according to claim 7 or 8, characterized in that when the machine is stopped, an error signal is generated for the user.
- A dishwasher using the method according to any of the preceding claims.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
TR2008/06744A TR200806744A2 (en) | 2008-09-05 | 2008-09-05 | Load detection method for dishwashers |
Publications (4)
Publication Number | Publication Date |
---|---|
EP2160970A2 true EP2160970A2 (en) | 2010-03-10 |
EP2160970A3 EP2160970A3 (en) | 2011-05-18 |
EP2160970A8 EP2160970A8 (en) | 2011-10-19 |
EP2160970B1 EP2160970B1 (en) | 2012-03-21 |
Family
ID=41531813
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP09167676A Not-in-force EP2160970B1 (en) | 2008-09-05 | 2009-08-12 | Weight sensing method for dishwashers |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP2160970B1 (en) |
AT (1) | ATE549963T1 (en) |
TR (1) | TR200806744A2 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2015197139A1 (en) * | 2014-06-27 | 2015-12-30 | Electrolux Appliances Aktiebolag | Dishwasher and method of operating the dishwasher |
CN105496333A (en) * | 2016-02-02 | 2016-04-20 | 长沙高汇环保科技有限公司 | Automatic balancing device for cleaning equipment |
CN110623613A (en) * | 2018-06-22 | 2019-12-31 | 青岛海尔智能技术研发有限公司 | Washing control method of dish washing machine and dish washing machine |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1252857A2 (en) | 2001-04-24 | 2002-10-30 | Miele & Cie. GmbH & Co. | Turbidity sensor for measuring turbidity in the washing liquid in a dishwasher |
DE10253017A1 (en) | 2002-11-14 | 2004-06-03 | Whirlpool Corp., Benton Harbor | Dishwasher operating method in which the turbidity of the cleaning water is measured in a pre-wash process and used by the dishwasher central control unit to automatically adjust operating parameters for the rest of the wash cycle |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2574645A1 (en) * | 1984-12-14 | 1986-06-20 | Esswein Sa | Process for determining the dishwashing load, and dishwasher implementing such a process |
DE19505552A1 (en) * | 1995-02-18 | 1996-08-22 | Aeg Hausgeraete Gmbh | Method for operating a dishwasher |
DE10233278B4 (en) * | 2002-07-23 | 2004-12-30 | Whirlpool Corp., Benton Harbor | Washing machine or dishwasher |
DE10246016A1 (en) * | 2002-10-02 | 2004-04-15 | Electrolux Home Products Corporation N.V. | Method of detecting dishwasher load based on measuring the quantity of washing fluid draining from dishes during washing |
-
2008
- 2008-09-05 TR TR2008/06744A patent/TR200806744A2/en unknown
-
2009
- 2009-08-12 EP EP09167676A patent/EP2160970B1/en not_active Not-in-force
- 2009-08-12 AT AT09167676T patent/ATE549963T1/en active
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EP1252857A2 (en) | 2001-04-24 | 2002-10-30 | Miele & Cie. GmbH & Co. | Turbidity sensor for measuring turbidity in the washing liquid in a dishwasher |
DE10253017A1 (en) | 2002-11-14 | 2004-06-03 | Whirlpool Corp., Benton Harbor | Dishwasher operating method in which the turbidity of the cleaning water is measured in a pre-wash process and used by the dishwasher central control unit to automatically adjust operating parameters for the rest of the wash cycle |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2015197139A1 (en) * | 2014-06-27 | 2015-12-30 | Electrolux Appliances Aktiebolag | Dishwasher and method of operating the dishwasher |
CN106455900A (en) * | 2014-06-27 | 2017-02-22 | 伊莱克斯电器股份公司 | Dishwasher and method of operating the dishwasher |
US20170119232A1 (en) * | 2014-06-27 | 2017-05-04 | Electrolux Appliances Aktiebolag | Dishwasher and method of operating the dishwasher |
CN106455900B (en) * | 2014-06-27 | 2019-10-18 | 伊莱克斯电器股份公司 | Dish-washing machine and the method for operating dish-washing machine |
US11076742B2 (en) | 2014-06-27 | 2021-08-03 | Electrolux Appliances Aktiebolag | Dishwasher and method of operating the dishwasher |
CN105496333A (en) * | 2016-02-02 | 2016-04-20 | 长沙高汇环保科技有限公司 | Automatic balancing device for cleaning equipment |
CN105496333B (en) * | 2016-02-02 | 2018-02-06 | 长沙高汇环保科技有限公司 | Cleaning equipment automatic balancing arrangement |
CN110623613A (en) * | 2018-06-22 | 2019-12-31 | 青岛海尔智能技术研发有限公司 | Washing control method of dish washing machine and dish washing machine |
Also Published As
Publication number | Publication date |
---|---|
TR200806744A2 (en) | 2010-03-22 |
EP2160970B1 (en) | 2012-03-21 |
EP2160970A3 (en) | 2011-05-18 |
ATE549963T1 (en) | 2012-04-15 |
EP2160970A8 (en) | 2011-10-19 |
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