EP3494856B1 - Ladung abhängige geschirrspülmaschine - Google Patents

Ladung abhängige geschirrspülmaschine Download PDF

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Publication number
EP3494856B1
EP3494856B1 EP17205936.2A EP17205936A EP3494856B1 EP 3494856 B1 EP3494856 B1 EP 3494856B1 EP 17205936 A EP17205936 A EP 17205936A EP 3494856 B1 EP3494856 B1 EP 3494856B1
Authority
EP
European Patent Office
Prior art keywords
light
duct
inlet
dishwasher
load
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP17205936.2A
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English (en)
French (fr)
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EP3494856A1 (de
Inventor
Onur ULUAG
Oguzhan Iren EROL
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Vestel Elektronik Sanayi ve Ticaret AS
Original Assignee
Vestel Elektronik Sanayi ve Ticaret AS
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Publication date
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Priority to EP17205936.2A priority Critical patent/EP3494856B1/de
Priority to TR2017/22175A priority patent/TR201722175A2/tr
Publication of EP3494856A1 publication Critical patent/EP3494856A1/de
Application granted granted Critical
Publication of EP3494856B1 publication Critical patent/EP3494856B1/de
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Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00—Washing or rinsing machines for crockery or tableware
    • A47L15/42—Details
    • A47L15/4295—Arrangements for detecting or measuring the condition of the crockery or tableware, e.g. nature or quantity
    • 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
    • A47L15/508—Hydraulic connections for racks
    • 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
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L2401/00—Automatic detection in controlling methods of washing or rinsing machines for crockery or tableware, e.g. information provided by sensors entered into controlling devices
    • A47L2401/30—Variation of electrical, magnetical or optical quantities
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • 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
    • A47L2501/03—Water recirculation, e.g. control of distributing valves for redirection of water flow
    • 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
    • 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
    • A47L2501/07—Consumable products, e.g. detergent, rinse aids or salt

Definitions

  • the present disclosure relates generally to load-sensitive dishwashers. It relates particularly to a dishwasher rack for use in a load-sensitive dishwasher machine. It further relates to a system comprising such a rack, to a load-sensitive dishwasher machine and to a method of operating a load-sensitive dishwasher machine.
  • Conventional dishwashers are typically programmed to perform an automated sequence of washing, rinsing and drying steps. Control parameters for the different steps, such as duration, temperature or an amount of cleaning liquid dispersed during the cleaning, are normally predetermined by the manufacturer or can be controlled by a user only to a limited extent, e.g., by manually selecting between different preconfigured programs. Meanwhile, the distribution of cleaning liquid in the dishwasher chamber is mainly determined by a structure of the dishwasher.
  • Control parameters of conventional dishwashers are normally preconfigured so as to provide an acceptable compromise between the quality of the cleaning, usually for a fully loaded machine, and the consumption of resources, including time, energy, water and detergent, during the cleaning.
  • an optimal choice of control parameters depends strongly on the type and the amount of items actually placed in the dishwasher, whereas manually selecting an appropriate program may not always be possible or convenient to a user.
  • DE 100 48 081 A1 describes the use of image recognition systems arranged in a dishwasher chamber for detecting a quantity and nature of loading and also a degree of soiling.
  • US 7,842,137 B2 describes techniques for 3D modelling of a dishwasher's content based on a transit time of light determined by an image detection system. Possible problems with these techniques consist in the demand for rather complex lighting, imaging or data processing.
  • EP 1 192 893 A2 describes an arrangement of light barriers through which a basket with items to be washed is passed before washing, which results in variations in the light interruptions depending on the placed items.
  • Possible problems with this technique consist in the demand for tracking also the movement of the basket to map the locations of the items causing the interruptions.
  • a user needs move the baskets in a suited way and no detection can be performed during the wash program, for example.
  • Document JP H07 327909 A discloses a dishwasher rack having all the features of the preamble of claim 1.
  • a dishwasher rack for use in a load-sensitive dishwasher machine.
  • the dishwasher rack comprises a plurality of rods, which are arranged to define at least one receptacle for an item to be washed, and at least one inlet.
  • Each of the rods comprises a duct for ducting cleaning liquid in an extension direction of the rod, and at least one duct opening adjacent to the at least one receptacle.
  • the duct of each rod is fluidly connected to the inlet such that a fluid connection exists between the inlet and the duct opening.
  • each rod is further configured for ducting light parallel to the extension direction of the rod, the duct being connected to the inlet in a light-conducting manner such that a light-conducting connection exists between the inlet and the duct opening.
  • the rods comprise at least one first rod and at least one second rod which are arranged on different sides of the receptacle, and the duct opening of the first rod faces the duct opening of the second rod, such that a light barrier of an optical load-sensing system of the dishwasher machine is constituted in the receptacle between the first rod and the second rod, when light is irradiated into the inlet by means of a light source of the load-sensing system.
  • the first rod and the second rod may be arranged such that the light barrier is blocked when an item to be washed is placed in the receptacle.
  • each rod may comprise a hollow tubular core and a light-reflecting cladding, a light-guiding cladding and/or an optical fiber.
  • the optical fiber may be arranged at least partly in the core of the rod.
  • each rod may be configured to function as a nozzle for spraying cleaning liquid from the duct towards the receptacle and as an interface for coupling light into, or out of, the duct.
  • the dishwasher rack may comprise multiple first rods and multiple second rods arranged on different sides of multiple receptacles of the dishwasher rack, such that at least one light barrier is constituted in each receptacle.
  • the dishwasher rack may further comprise at least one first canal, which extends between the multiple first rods and the inlet, wherein the duct of each of the first rods is connected fluidly and in a light-conducting manner to the inlet via the first canal.
  • the dishwasher rack may further comprise at least one second canal, which extends between the multiple second rods and the inlet, wherein the duct of each of the second rods is connected fluidly and in a light-conducting manner to the inlet via the second canal.
  • Each of the rods may further comprise at the duct opening a spring-loaded valve.
  • the spring-loaded valve may be biased in a first position and, when cleaning liquid is pumped through the duct, may be configured to be pushed into a second position.
  • the valve may comprise an optical filter, which in the first position of the valve is placed in a passage through the duct opening and in the second position of the valve is removed from the passage through the duct opening.
  • the optical filter may comprise a band-pass filter. Respective two of the band-pass filters, which pertain to a same light barrier, may have equal transmission bands. In addition, at least two of the band-pass filters, which pertain to different light barriers, may have different transmission bands.
  • a load-sensing system for use in a load-sensitive dishwasher machine.
  • the system comprises a dishwasher rack as presently described, at least one light source, which is arranged to irradiate light into the inlet of the dishwasher rack, and at least one light sensor, which is arranged to detect light emitted from the inlet of the dishwasher rack.
  • the light source may be arranged to irradiate the light into the inlet such that light is emitted into the first canal.
  • the light sensor may be arranged to detect light emitted from the inlet via the second canal.
  • the light source may emit light over a spectral range which includes different parts of the different transmission bands of the band-pass filters.
  • the load-sensing system may further comprise a diffraction device for enabling wavelength-specific light detection by means of the light sensor.
  • the load-sensing system may further comprise a processing unit.
  • the processing unit may be configured for processing a signal from the light sensor regarding the presence of one or more items being placed in one or more of the receptacles of the dishwasher rack.
  • the processing unit may further be configured to generate a control signal for at least one process parameter of the dishwasher machine based on the processed signal.
  • the dishwasher machine comprises a dishwasher rack as presently described and/or a load-sensing system as presently described.
  • a method of operating a load-sensitive dishwasher machine as presently described comprises controlling, by means of a processing unit of the dishwasher machine, the light source to irradiate light into the inlet, controlling, by means of the processing unit, a light sensor of the load-sensing system to detect an intensity of light emitted from the inlet, processing, by means of the processing unit, a sensor signal which is received from the light sensor and which is indicative of the detected intensity to determine whether an item to be washed is placed in the receptacle, and generating and outputting, by means of the processing unit, a control signal for at least one process parameter of the dishwasher machine based on the processed sensor signal.
  • Fig. 1 shows a perspective view of a schematic representation of a dishwasher rack 100 for use in a load-sensitive dishwasher machine.
  • the dishwasher rack 100 comprises a plurality of rods 110, a plurality of duct openings 112 arranged in the rods 110, inlets 120, a pipe 130, and one or more canals 140.
  • the rods 110 are arranged such that multiple receptacles 150a-150c for items to be washed are formed.
  • the duct openings 112 are arranged adjacent to respective receptacles 150a-150c of the dishwasher rack 100.
  • Each of the rods 110 comprises duct for ducting cleaning liquid in the extension direction of each rod 110.
  • the ducts of the rods 110 are in fluid connection with the inlet 120 via one or more canals 140 and/or via the pipe 130.
  • the dishwasher rack 100 is configured for spraying cleaning liquid, such as water or detergent, through the duct openings 112 when cleaning liquid is injected into the inlet 120.
  • the injected cleaning liquid is ducted from the inlet 120 via the pipe 130 and/or one or more canals 140 to one or more of the rods 110, from where the injected cleaning liquid is sprayed from respective duct openings 112 to get in contact with one or more items placed in the corresponding receptacles 150a-150c adjacent to the respective duct opening.
  • Each of the rods 110 is further configured to provide for light-conducting parallel to the extension direction of the rod 110.
  • the duct openings 112 are further configured to function as an optical interface for coupling-out light which has been ducted inside the respective rod 112 or for coupling-in light which is irradiated on the duct opening 112 from outside, for ducting the irradiated light into the structure of the dishwasher rack 100.
  • the dishwasher rack 100 Analogously to the fluid connection between the duct openings 112 and the inlet 120, the dishwasher rack 100 thus provides for a light-conducting connection between each of the duct openings 112 and the inlet 120 via one or more canals 140 and/or the pipe 130.
  • the dishwasher rack 100 enables ducting cleaning liquid and/or light from the inlet 120 to each of the duct openings 112 or reverse.
  • the duct openings 112 are arranged such that respective two of the duct openings 112 of different rods 110 face each other, while being positioned at different sides of a receptacle 150a-150c.
  • each facing pair of openings 120 constitutes a light barrier.
  • a light barrier extending in that receptacle is likely to be interrupted.
  • the dishwasher rack 100 allows for determining, based on a detected light intensity emitted from the inlet 120, the presence or absence of one or more items in one or more of the receptacles 150a-150c. Moreover, arranging a light barrier in each receptacle allows for spatially resolved information about objects placed in the dishwasher rack 100, for example, at various stages before, during or after a cleaning process. Spatial resolution can also be increased by implementing multiple, separate light circuits as above described, in different regions of the dishwasher rack 100. Moreover, techniques, such as filtering of light, can be used to locate more accurately received intensity information of light corresponding to different light barriers of the dishwasher rack 100, as will be described in more detail below.
  • the dishwasher rack 100 allows for acquiring information about items being placed in receptacles 150a-150c of the dishwasher rack 100 by sensing the presence of the item at the very same place where also cleaning liquid for the item is sprayed out. This allows for very accurate control of cleaning conditions adapted to the particular load in sensing area.
  • the dishwasher rack 100 enables, for example, controlling at least one process parameter of the cleaning process of the load-sensitive dishwasher machine to correspond to the particular load situation in one or more receptacles 150a-150c.
  • the dishwasher rack 100 comprises in some examples a valve system and/or multiple duct circuits that allow for selective delivery of cleaning liquid based on the determined presence of items to be cleaned in a respective receptacle 150a-150c.
  • the load-sensing functionality of the dishwasher rack 100 is integrated into the cleaning liquid delivery system of the dishwasher rack 100. Therefore, no external sensing devices are needed to be attached to the rack 100, hence a use of the dishwasher rack 100 is not hindered.
  • each rod 112 comprises a hollow tubular duct inside the rod 112, through which cleaning liquid can be ducted.
  • the duct is provided with a highly reflective cladding, such that light can be ducted with little loss through the same hollow duct, especially while no cleaning liquid is present in the duct.
  • light-guiding cladding is provided in the hollow duct of each rod 112.
  • an optical fibre is accommodated in each rod 112 and is arranged such that light irradiated from outside on the duct opening 112 becomes coupled into the light-guiding fibre.
  • Fig. 2 shows a schematic representation of an arrangement 200 of rods 210, 212 as described above.
  • the rods 210, 212 are arranged at different sides of a receptacle 250.
  • the arrangement 200 comprises a first rod 210, having a duct opening 114, a spring-loaded valve 220 with spring 224, a valve body 228, and an optical filter 230.
  • the first rod 210 further comprises a duct 240 for ducting cleaning liquid or light, as above described.
  • the arrangement 200 further comprises a second rod 212, which in the shown example corresponds structurally to the first rod 210.
  • the second rod 212 comprises a duct opening 216, a spring-loaded valve 222 with a spring 226 and a valve body 229, including an optical filter 232, and a duct 242 for ducting, for example, light and/or cleaning liquid.
  • the arrangement 200 of Fig. 2 is configured to constitute a light barrier between the rods 210, 212.
  • the duct openings 214, 216 are arranged such that they face each other.
  • the spring-loaded valves 220, 222 are biased in a first position.
  • the optical filters 230, 232 are placed in a passage of the duct openings 214, 216.
  • the optical filters function as filters for light which is guided through the duct 240 of the first rod 210 to be coupled out of the duct 240 via the filter 230 and the duct opening 214.
  • the out-coupled light passes the receptacle 250 and reaches the duct opening 216 of the duct 242 of the second rod 212.
  • the irradiated light is coupled into the duct 242 and guided back to the inlet 120.
  • the optical filters to 230, 232 have identical transmission bands, in some examples. In other examples, the filters 230, 232 have at least overlapping transmission bands at a wavelength of the light arriving via the duct 240 of the first rod 210.
  • the spring-loaded valves 220, 222 allow for optically sensing the presence of items in the receptacle 250, for example, during a loading stage and/or prior to starting of the cleaning process of the dishwasher machine. Furthermore, as set forth in more detail below, the provision of optical filters 230, 232 allows for spatially resolving the light intensity information detected by a load sensing system regarding the presence of items in different receptacles 250. It can be achieved by the use of a broad irradiation light spectrum and by using different filters 230, 232 having different transmission bands at different receptacles 250 or at different parts of a same receptacle 250.
  • Fig. 3 shows the arrangement 200 of Fig. 2 , wherein like numerals denote like features.
  • Fig. 3 shows the arrangement 200 during a cleaning stage of the dishwasher machine, while cleaning liquid is delivered via the duct 240.
  • the spring-loaded valve 420 is now pushed in a second position, in which the duct opening 214 provides an open passage for the cleaning liquid to be sprayed towards the receptacle 250.
  • the second rod 212 is delivered cleaning liquid via the duct 242 and acts similar to the first rod 210. In that manner, cleaning liquid is applied to an item in the receptacle 250 from either side, thereby increasing a cleaning efficiency of the dishwasher rack.
  • Fig. 4A shows a schematic representation of a tube 400 in which the first canal 410 and the second canal 420 are accommodated.
  • the tube 400 can be used in a dishwasher rack having a plurality of first rods according to the first rod 210 of Fig. 2 and a plurality of second rods according to the second rod 212 of Fig. 2 .
  • multiple first rods are connected to the first canal 410
  • multiple second rods are connected to the second canal 420.
  • light is irradiated into the inlet 120 such that the light is coupled into the first canal 410.
  • each of the first rods connected to the first canal 410 will thus receive light from the first canal 410.
  • all light collected by the multiple second rods 212 will become coupled into the second canal 420 and be emitted from the inlet 120 via the second canal 420.
  • a corresponding arrangement facilitates, for example, a placing of a light source and a detector of a load-sensing system and enables also for more accurate intensity measurements and evaluation.
  • cleaning liquid can be injected equally into both the first canal 410 and the second canal 420, such that all first and second rods act similarly in the cleaning process, as described in connection with Fig. 3 .
  • Fig. 4B shows an alternative arrangement 400' of a first canal 410' and a second canal 420'.
  • the arrangement 400' corresponds to a separate arrangement of the first and the second canals 410', 420'.
  • each of the first and second canals 410', 420' is shown connected to a rod.
  • Fig. 5 shows a schematic representation of light-guiding in a tubular duct 500, as described above.
  • the tubular duct 500 is provided with a reflective cladding to provide for the guiding of light in an extension direction of the duct 500, for example, during a process stage while no cleaning liquid is delivered via the duct 500.
  • Fig. 6 shows a schematic representation of an arrangement 600 for wavelength-specific intensity measurements.
  • the arrangement 600 is used in some examples as part of a load-sensing system for use with the dishwasher rack 100, as described above.
  • the arrangement 600 comprises a light sensor 610 having multiple sensing fields on which light of different wavelengths is directed.
  • the arrangement 600 further comprises a diffraction device 620, such as a diffraction prism or a diffraction grating, configured to spectrally resolve polychromatic light incident on the device 620.
  • the arrangement 600 further comprises focusing elements 630, 632.
  • the sensing arrangement 600 is used in some examples to differentiate the intensity information based on light emitted from the inlet 120 regarding different receptacles 158-150c of the dishwasher rack 100.
  • different rods pertaining to different light barriers are equipped with optical bandpass filters having different transmission bands.
  • spectral intensity information can be used to determine the presence or absence of items in different receptacles 150a-150c by analysing the intensity information related to the transmission band of the optical filters in rods adjacent to that receptacle.
  • a white light source may be used for radiating light into the inlet 120, whereas spectrally filtered light is returned from each of the light barriers, wherein the wavelength or wavelength range of the filtered light of each light barrier is indicative of the pertinent receptacle 150a-150c.
  • Fig. 7 shows a schematic view of a load-sensitive dishwasher 700.
  • the load-sensitive dishwasher 700 comprises a load-sensing system 710 comprising a dishwasher rack 720, a light source 730, a light sensor 740, and a processing unit 750. Concerning these elements, the above description applies correspondingly.
  • the load sensing system 710 further comprises a database 760, communicatively coupled to the processing unit 750, and a cleaning unit 770 configured to modify at least one condition pertaining to the cleaning process of the dishwasher machine 700. Examples of the cleaning unit 770 include a heating, a cleaning liquid pump, a detergent pump, etc.
  • the processing unit 750 is configured to generate a control signal based on the process signal received from the light sensor 714 and output the generated control signal to the cleaning unit 770 to drive the cleaning unit 770 accordingly.
  • the database 760 may comprise data, such as a mapping table, based on which the processing unit 750 generates the control signal in accordance with the processed signal received from the light sensor 740.
  • Fig. 8 shows a method 800 for operating a load-sensitive dishwasher machine, as described above.
  • the method 800 comprises controlling, by means of the processing unit of the dishwasher machine, a light source to irradiate light into the inlet of the dishwasher rack, block 810.
  • the method 800 further comprises controlling, by means of the processing unit, a light sensor of the load sensing system to detect an intensity of light emitted from the inlet, block 820, and processing the sensor signal received from the light sensor to determine whether an item to be washed is placed in the receptacle, block 830.
  • the method 800 further comprises generating and outputting, by means of the processing unit and towards a cleaning unit of the dishwasher, the control signal for at least one process parameter of the dishwasher machine based on the processed sensor signal, block 840.

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  • Washing And Drying Of Tableware (AREA)

Claims (15)

  1. Geschirrspülkorb (100; 720) zur Nutzung in einer beladungsabhängigen Geschirrspülmaschine (700), umfassend eine Mehrzahl von Stangen (110; 210, 212), die angeordnet sind, mindestens eine Aufnahme (150a bis 150c; 250) für einen zu waschenden Artikel zu definieren, und mindestens einen Einlass (120), wobei jede der Stangen (110; 210, 212) Folgendes umfasst:
    eine Leitung (240, 242) zum Leiten von Reinigungsflüssigkeit in einer Erstreckungsrichtung der Stange (110; 210, 212), und
    mindestens eine Leitungsöffnung (112; 214, 216) angrenzend an die mindestens eine Aufnahme (250),
    wobei die Leitung (240, 242) jeder Stange (110; 210, 212) mit dem Einlass (120) in Fluidverbindung steht, so dass eine Fluidverbindung zwischen dem Einlass (120) und der Leitungsöffnung (112; 214, 216) vorliegt;
    dadurch gekennzeichnet, dass
    die Leitung (240, 242) jeder Stange (110; 210, 212) ferner dazu ausgebildet ist, Licht parallel zu der Erstreckungsrichtung der Stange (110; 210, 212) zu leiten, wobei die Leitung (240, 242) in einer Licht leitenden Art und Weise mit dem Einlass (120) verbunden ist, so dass eine Lichtleitungsverbindung zwischen dem Einlass (120) und der Leitungsöffnung (112; 214, 216) vorliegt, und
    dadurch, dass
    die Stangen (110; 210, 212) mindestens eine erste Stange (210) und mindestens eine zweite Stange (212) umfassen, die auf verschiedenen Seiten der Aufnahme (150a bis 150c; 250) angeordnet sind, und die Leitungsöffnung (214) der ersten Stange (210) der Leitungsöffnung (216) der zweiten Stange (212) zugewandt ist, so dass eine Lichtschranke eines optischen Beladungserfassungssystems der Geschirrspülmaschine in der Aufnahme (150a bis 150c; 250) zwischen der ersten Stange (210) und der zweiten Stange (212) gebildet wird, wenn Licht mittels einer Lichtquelle des Beladungserfassungssystems in den Einlass (120) gestrahlt wird.
  2. Geschirrspülkorb (100; 720) nach Anspruch 1, wobei die erste Stange (210) und die zweite Stange (212) so angeordnet sind, dass die Lichtschranke blockiert ist, wenn ein zu waschender Artikel in der Aufnahme (250) platziert ist.
  3. Geschirrspülkorb (100; 720) nach Anspruch 1 oder 2, wobei die Leitung (240, 242) jeder Stange (110; 210, 212) einen hohlen röhrenförmigen Kern und mindestens eine von einer Licht reflektierenden Verkleidung, einer Licht führenden Verkleidung und einer optischen Faser umfasst.
  4. Geschirrspülkorb (100; 720) nach einem der vorhergehenden Ansprüche, wobei die Leitungsöffnung (214, 216) jeder Stange (110; 210, 212) dazu ausgebildet ist, als eine Düse zum Sprühen von Reinigungsflüssigkeit von der Leitung (240, 242) zu der Aufnahme (250) und als eine Schnittstelle zur Kopplung von Licht in die oder aus der Leitung (240, 242) zu fungieren.
  5. Geschirrspülkorb (100; 720) nach einem der vorhergehenden Ansprüche, umfassend mehrere erste Stangen (110; 210) und mehrere zweite Stangen (110; 212), die auf verschiedenen Seiten mehrerer Aufnahmen (150a bis 150c; 250) des Geschirrspülkorbs (100; 720) angeordnet sind, so dass mindestens eine Lichtschranke in jeder Aufnahme (150a bis 150c; 250) gebildet wird.
  6. Geschirrspülkorb (100; 720) nach Anspruch 5, ferner umfassend mindestens einen ersten Kanal (140; 410), der sich zwischen den mehreren ersten Stangen (110; 210) und dem Einlass (120) erstreckt, wobei die Leitung (240) jeder der ersten Stangen (110; 210) fluidisch und in einer Licht leitenden Art und Weise über den ersten Kanal (140; 410) und mindestens einen zweiten Kanal (140; 420), der sich zwischen den mehreren zweiten Stangen (110; 212) und dem Einlass (120) erstreckt, mit dem Einlass (120) verbunden ist, wobei die Leitung (242) jeder der zweiten Stangen (110; 212) fluidisch und in einer Licht leitenden Art und Weise über den zweiten Kanal (420) mit dem Einlass (120) verbunden ist.
  7. Geschirrspülkorb (100; 720) nach Anspruch 6, wobei jede der Stangen (110; 210, 212) ferner an der Leitungsöffnung (112; 214, 216) ein federgespanntes Ventil (220, 222) umfasst, das in einer ersten Position vorgespannt ist, und, wenn Reinigungsflüssigkeit durch die Leitung (240, 242) abgegeben wird, dazu ausgebildet ist, in eine zweite Position gedrückt zu werden, wobei das Ventil (220, 222) einen optischen Filter (230, 232) umfasst, der in der ersten Position des Ventils (220, 222) in einem Durchgang durch die Leitungsöffnung (214, 216) platziert und in der zweiten Position des Ventils (220, 222) aus dem Durchgang durch die Leitungsöffnung (214, 216) entfernt ist.
  8. Geschirrspülkorb (100; 720) nach Anspruch 7, wobei der optische Filter (230, 232) einen Bandpassfilter umfasst, wobei zwei jeweilige der Bandpassfilter (230, 232), die zu einer selben Lichtschranke gehören, gleiche Durchlassbereiche aufweisen, und wobei mindestens zwei der Bandpassfilter (230, 232), die zu verschiedenen Lichtschranken gehören, verschiedene Durchlassbereiche aufweisen.
  9. Beladungserkennungssystem (710) zur Nutzung in einer beladungsabhängigen Geschirrspülmaschine (700), umfassend:
    einen Geschirrspülkorb (720) nach einem der vorhergehenden Ansprüche;
    mindestens eine Lichtquelle (730), die angeordnet ist, Licht in den Einlass (120) des Geschirrspülkorbs (720) zu strahlen, und
    mindestens einen Lichtsensor (740), der angeordnet ist, Licht zu detektieren, das von dem Einlass (120) des Geschirrspülkorbs (720) abgegeben wird.
  10. Beladungserkennungssystem (710) nach Anspruch 9, umfassend einen Geschirrspülkorb (720) nach einem der Ansprüche 6 bis 9, wobei die Lichtquelle (730) angeordnet ist, das Licht in den Einlass (120) zu strahlen, so dass Licht in den ersten Kanal (410; 510) abgegeben wird, und wobei der Lichtsensor (740) angeordnet ist, Licht zu detektieren, das von dem Einlass (120) über den zweiten Kanal (420; 520) abgegeben wird.
  11. Beladungserkennungssystem (710) nach Anspruch 9 oder 10, umfassend einen Geschirrspülkorb (720) nach Anspruch 8, wobei die Lichtquelle (730) Licht über einen Spektralbereich abgibt, der verschiedene Teile der verschiedenen Durchlassbereiche der Bandpassfilter aufweist, und wobei das Beladungserkennungssystem (710) ferner eine Beugungsvorrichtung (620) zur Ermöglichung wellenlängenspezifischer Detektion mittels des Lichtsensors (610; 740) umfasst.
  12. Beladungserkennungssystem (710) nach Anspruch 11, ferner umfassend eine Verarbeitungseinheit (750), die zur Verarbeitung eines Signals von dem Lichtsensor (740) hinsichtlich des Vorhandenseins eines oder mehrerer Artikel ausgebildet ist, die in einer oder mehrerer der Aufnahmen (150a bis 150c) des Geschirrspülkorbs (720) platziert sind.
  13. Beladungserkennungssystem nach Anspruch 12, wobei die Verarbeitungseinheit ferner dazu ausgebildet ist, ein Steuersignal für mindestens einen Prozessparameter der Geschirrspülmaschine auf Grundlage des verarbeiteten Signals zu erzeugen.
  14. Beladungsabhängige Geschirrspülmaschine (700), umfassend einen Geschirrspülkorb (720) nach einem der Ansprüche 1 bis 8 und/oder ein Beladungserkennungssystem (710) nach einem der Ansprüche 9 bis 13.
  15. Verfahren (800) zum Betrieb eines beladungsabhängigen Geschirrspülers nach Anspruch 14, das Verfahren umfassend:
    Steuern (810) der Lichtquelle mittels einer Verarbeitungseinheit der Geschirrspülmaschine, so dass sie Licht in den Einlass strahlt;
    Steuern (820) eines Lichtsensors des Beladungserkennungssystems mittels der Verarbeitungseinheit, so dass er eine Intensität von Licht detektiert, das von dem Einlass abgegeben wird;
    Verarbeiten (830) eines Sensorsignals, das von dem Lichtsensor empfangen wird und das die detektierte Intensität angibt, mittels der Verarbeitungseinheit, um zu bestimmen, ob ein zu waschender Artikel in der Aufnahme platziert ist;
    Erzeugen und Ausgeben (840) eines Steuersignals für mindestens einen Prozessparameter der Geschirrspülmaschine auf Grundlage des verarbeiteten Sensorsignals mittels der Verarbeitungseinheit.
EP17205936.2A 2017-12-07 2017-12-07 Ladung abhängige geschirrspülmaschine Active EP3494856B1 (de)

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JPH07327909A (ja) * 1994-06-13 1995-12-19 Hitachi Ltd 食器洗い乾燥機
DE19961782A1 (de) * 1999-12-21 2001-06-28 Bsh Bosch Siemens Hausgeraete Haushaltgerät mit einem Temperatursensor
DE10048081A1 (de) 2000-09-28 2002-04-18 Miele & Cie Verfahren zur Erkennung der Spülgutbeladung und/oder des Verschmutzungsgrades von Spülgut in einer programmgesteuerten Geschirrspülmaschine und Geschirrspülmaschine dafür
DE10048088A1 (de) 2000-09-28 2002-04-11 Miele & Cie Verfahren zur Erkennung der Beladung einer programmgesteuerten Geschirrspülmaschine mit Spülgut und Geschirrspülmaschine zur Durchführung des Verfahrens
DE102004035847A1 (de) 2004-07-23 2006-03-23 BSH Bosch und Siemens Hausgeräte GmbH Verfahren zur Erkennung der Spülgutbeladung und Geschirrspülmaschine
KR20100032202A (ko) * 2008-09-17 2010-03-25 엘지전자 주식회사 세척기기의 랙 어셈블리
US20120291827A1 (en) * 2011-05-19 2012-11-22 General Electric Company Spray tines for a dishwasher rack
WO2016206712A1 (en) * 2015-06-22 2016-12-29 Electrolux Appliances Aktiebolag Dishwasher

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