EP2453783A1 - Verfahren und system zur detektion der rotation eines sprüharms in einer geschirrspülmaschine - Google Patents
Verfahren und system zur detektion der rotation eines sprüharms in einer geschirrspülmaschineInfo
- Publication number
- EP2453783A1 EP2453783A1 EP10713630A EP10713630A EP2453783A1 EP 2453783 A1 EP2453783 A1 EP 2453783A1 EP 10713630 A EP10713630 A EP 10713630A EP 10713630 A EP10713630 A EP 10713630A EP 2453783 A1 EP2453783 A1 EP 2453783A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- dishwasher
- conductivity sensor
- sensor
- dosing device
- spray arm
- 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- Withdrawn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
- 239000007921 spray Substances 0.000 title claims abstract description 49
- 238000000034 method Methods 0.000 title claims abstract description 30
- 238000005259 measurement Methods 0.000 claims abstract description 47
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 21
- 230000005484 gravity Effects 0.000 claims abstract description 9
- 238000005507 spraying Methods 0.000 claims abstract description 8
- 230000003287 optical effect Effects 0.000 claims description 43
- 230000005540 biological transmission Effects 0.000 claims description 19
- 229920001296 polysiloxane Polymers 0.000 claims description 10
- 230000008054 signal transmission Effects 0.000 claims description 5
- 239000008237 rinsing water Substances 0.000 claims 1
- 230000035899 viability Effects 0.000 claims 1
- 238000005406 washing Methods 0.000 abstract description 21
- 238000011161 development Methods 0.000 description 9
- 238000001514 detection method Methods 0.000 description 6
- 238000002360 preparation method Methods 0.000 description 5
- 238000004851 dishwashing Methods 0.000 description 4
- 238000001035 drying Methods 0.000 description 3
- 150000003839 salts Chemical class 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 238000011109 contamination Methods 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 238000011010 flushing procedure Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000003595 mist Substances 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- 238000000018 DNA microarray Methods 0.000 description 1
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 238000009529 body temperature measurement Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000012459 cleaning agent Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 239000003599 detergent Substances 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229910000037 hydrogen sulfide Inorganic materials 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000002032 lab-on-a-chip Methods 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000010287 polarization Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000008399 tap water Substances 0.000 description 1
- 235000020679 tap water Nutrition 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 238000009827 uniform distribution Methods 0.000 description 1
- 238000001429 visible spectrum Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L15/00—Washing or rinsing machines for crockery or tableware
- A47L15/0018—Controlling processes, i.e. processes to control the operation of the machine characterised by the purpose or target of the control
- A47L15/0049—Detection or prevention of malfunction, including accident prevention
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L15/00—Washing or rinsing machines for crockery or tableware
- A47L15/14—Washing or rinsing machines for crockery or tableware with stationary crockery baskets and spraying devices within the cleaning chamber
- A47L15/18—Washing or rinsing machines for crockery or tableware with stationary crockery baskets and spraying devices within the cleaning chamber with movably-mounted spraying devices
- A47L15/22—Rotary spraying devices
-
- 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
- A47L15/44—Devices for adding cleaning agents; Devices for dispensing cleaning agents, rinsing aids or deodorants
- A47L15/4445—Detachable devices
-
- 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
- A47L15/44—Devices for adding cleaning agents; Devices for dispensing cleaning agents, rinsing aids or deodorants
- A47L15/4463—Multi-dose dispensing arrangements
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- 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
- A47L2401/24—Spray arms status, e.g. detection of spray arm rotation
-
- 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
- A47L2501/26—Indication or alarm to the controlling device or to the user
Definitions
- the invention relates to a method and system for detecting the rotation of at least one spray arm rotating during operation of a dishwasher.
- Dishwashing items can, if improperly positioned in the dishware or cutlery basket, project from the level of the crockery or cutlery basket into the washing compartment so that the rotation of the sprayer arm during operation of the dishwasher is blocked by such dishwashing items being improperly positioned.
- the blockage of the Sprüharmrotation can - in addition to the improper positioning - also caused by slipping or tilting of items to be washed during a wash program.
- the blockage and the stoppage of the spray arm during a wash program can lead to a significant deterioration of the cleaning performance, especially in the areas no longer swept by the spray arm in the dishwasher.
- the object of the invention is therefore to provide a method and a system that allows a simple and reliable detection of the rotation of a spray arm in a dishwasher.
- the object is achieved by a method according to claim 1 and a system according to claim 2.
- the method and system for detecting the rotation of at least one spray arm in a dishwasher comprises a dishwasher with at least one spray arm rotating during operation of the dishwasher, a dispenser positionable inside the dishwasher, comprising at least one sensor unit and a control unit, wherein the sensor unit comprises at least one conductivity sensor, and is characterized in that the conductivity sensor is arranged in the operating position of the dosing device in the direction of gravity on the bottom of the dosing and the positionable dosing device is designed and arranged inside the dishwasher or is arranged that during operation of the dishwasher direct spraying of the conductive keitsensors with flushing water is effected by a spray arm, wherein the control unit and the conductivity sensor are configured such that a discontinuous, discrete resistance measurement is made to the conductivity sensor.
- the inventive system for detecting the rotation of at least one spray arm in a dishwasher comprises a dishwasher with at least one rotating during operation of the dishwasher sprayer, a positionable inside the dishwasher dosing device comprising at least one sensor unit and a control unit, wherein the sensor unit comprises at least one conductivity sensor and the Conductive sensor in the operating position of the dosing device in the direction of gravity boide arranged on the dosing and the positionable dosing device is designed and arranged inside the dishwasher or is arranged that during operation of the dishwasher direct spraying of the conductivity sensor with rinse water is effected by a spray arm, wherein the control unit and the conductivity sensor are configured such that a discontinuous, discrete resistance measurement at Leitfä sensitivity sensor is made.
- the resistance measurement takes place within at least one measurement interval that corresponds at least to the time duration required by the spray arm for at least one complete revolution, preferably at least 2 revolutions, particularly preferably at least 3 revolutions.
- the measurement interval is chosen such that the spray arm sweeps the conductivity sensor three times within the selected measurement interval, but no change in resistance is measured on the conductivity sensor within the measurement interval, this may indicate a blockage of the spray arm rotation or an inactive state of the spray arms.
- the measuring interval is selected between 1 and 120 seconds, preferably between 2 and 60 seconds, particularly preferably between 3 and 10 seconds.
- At least 100, preferably at least 200, resistance measurements are made on the conductivity sensor per second. It is particularly preferred that at least 100, preferably at least 200, resistance measurements are made on the conductivity sensor per second within a measuring interval, whereby a reduction of the energy consumption is achieved since the measurement is limited in time.
- the time interval between two consecutive measurement intervals is preferably between 1 second and 10 minutes, more preferably between 5 seconds and 5 minutes, particularly preferably between 10 seconds and 2 minutes.
- the time interval of more than two consecutive measurement intervals may be constant or vary.
- the sensor unit comprises at least one, at least 2-pole conductivity sensor.
- at least two poles of the conductivity sensor have a distance of 2-25 mm, preferably 5-15 mm, particularly preferably about 12 mm.
- At least two poles of a conductivity sensor are coated with an electrically conductive silicone, wherein it is particularly preferable that a substantially planar surface is formed between the silicone and the Dosier Anlagenière. Due to the elastomeric properties of the conductive silicone, the sensor can be sealed in a simple and effective manner with respect to the environment and embedded in a housing wall of the dosing device.
- the dosing device comprises an interface with which signals are transmitted from the dosing device to the dishwasher.
- the interface is designed for the wireless transmission of signals.
- the interface is designed for the transmission of optical signals.
- the signals represent measured values or measurement results of the dosing device.
- control unit necessary for carrying out the method according to the invention and at least one sensor unit, in particular a conductivity sensor, are integrated in the dosing device.
- at least one sensor unit in particular a conductivity sensor
- an actuator and / or an energy source are also arranged on or in the metering device.
- the dosing device comprises at least a first interface which cooperates in or on a dishwasher formed corresponding interface in such a way that a transfer of electrical energy and / or signals from the dishwasher to the dosing and / or from the dosing to the dishwasher is realized ,
- the interfaces are formed by connectors.
- the interface cells can be designed in such a way that a wireless transmission of electrical energy and / or electrical and / or optical signals is effected.
- the interfaces provided for the transmission of electrical energy are inductive transmitters or receivers of electromagnetic waves.
- the interface of a dishwasher as a transmitter-coil operated with alternating current with iron core and the interface of the dosing device can be designed as a receiver coil with iron core.
- the transmission of electrical energy can also be provided by means of an interface, the dishwasher side an electrically operated light source and dosier confuse smell a light sensor, such as a photodiode or a solar cell comprises.
- a light sensor such as a photodiode or a solar cell comprises.
- the light emitted by the light source is converted by the light sensor into electrical energy, which in turn feeds, for example, a metering unit-side accumulator.
- an interface is present on the dosing device and the dishwasher for the transmission (ie sending and receiving) of electromagnetic and / or optical signals, which in particular represent operating state, measuring and / or control information of the dosing device and / or the dishwasher. educated.
- such an interface can be designed such that a wireless transmission of electrical energy and / or electromagnetic and / or optical signals is effected.
- the interface is configured to transmit and / or receive optical signals. It is very particularly preferred that the interface is configured to emit or receive light in the visible range. Since darkness usually prevails in the interior of the dishwasher during operation of a dishwasher, signals in the visible, optical region, for example in the form of signal pulses or light flashes, can be emitted and / or detected by the dosing device. It has proven particularly advantageous to use wavelengths between 600-800 nm in the visible spectrum.
- the interface is configured to emit or receive infrared signals.
- the interface is configured for transmitting or receiving infrared signals in the near infrared range (780nm-3,000nm).
- the interface comprises at least one LED.
- the interface comprises at least two LEDs. It is also possible according to a further preferred embodiment of the invention to provide at least two LEDs which emit light in a mutually different wavelength. This makes it possible, for example, to define different signal bands on which information can be sent or received.
- At least one LED is an RGB LED whose wavelength is adjustable.
- an LED can be used to define different signal bands that emit signals at different wavelengths.
- light is emitted at a different wavelength during the drying process, during which there is a high level of atmospheric humidity (mist) in the washing compartment, than, for example, during a washing step.
- the metering device interface may be configured such that the LED is used both to send signals inside the dishwasher, and in particular when the dishwasher is closed. dishwasher door, as well as for optical indication of an operating state of the metering device, in particular when the dishwasher door is open, is provided.
- an optical signal is designed as a signal pulse with a pulse duration between 1 ms and 10 seconds, preferably between 5 ms and 100 ms seconds.
- the interface of the dosing device is configured such that it emits an optical signal with the dishwasher closed and unloaded, that a mean illuminance E between 0.01 and 100 lux, preferably between 0.1 and 50 lux measured on the Rinsing space limiting walls causes. This illuminance is then sufficient to cause multiple reflections with or on the other Spülraumassin and so possible signal shadows in the washing compartment, in particular in the loading condition of the dishwasher to reduce or prevent.
- the signal transmitted and / or received by the interface is in particular a carrier of information, in particular a control signal or a signal representing an operating state of the dosing device and / or the dishwasher.
- the optical transmitting unit may be an LED, which preferably emits light in the visible and / or IR range. It is also conceivable to use another suitable optical transmitting unit, e.g. a laser diode, to use. It is particularly preferable to use optical transmission units that emit light in the wavelength range between 600 and 800 nm.
- the dosing device may comprise at least one optical receiving unit.
- the dosing device can receive signals from an optical transmission unit arranged in the household appliance.
- This can be realized by any suitable optical receiving unit, such as photocells, photomultipliers, semiconductor detectors, photodiodes, photoresistors, solar cells, phototransistors, CCD and / or CMOS image sensors. It is particularly preferred that the optical receiving unit is suitable for receiving light in the wavelength range from 600 to 800 nm.
- the signals emitted by the transmitting unit into the surroundings of the metering device may preferably represent information regarding operating conditions or control commands.
- a sensor is a measuring sensor or measuring sensor which can quantitatively record certain physical or chemical properties and / or the material quality of its environment qualitatively or as a measured variable.
- the dosing unit comprises a sensor for detecting the conductivity, whereby in particular the presence of water or the spraying of water, in particular in a dishwasher, is detected.
- the dosing unit particularly preferably has at least one sensor which is suitable for detecting a temperature.
- the temperature sensor is designed in particular for detecting a water temperature.
- the dosing unit has a sensor which can determine physical, chemical and / or mechanical parameters from the surroundings of the dosing unit.
- the sensor unit may comprise one or more active and / or passive sensors for the qualitative and / or quantitative detection of mechanical, electrical, physical and / or chemical variables, which are passed as control signals to the control unit.
- the sensors of the sensor unit from the group of timers, temperature sensors, infrared sensors, brightness sensors, temperature sensors, motion sensors, strain sensors, speed sensors, proximity sensors, flow sensors, color sensors, gas sensors, vibration sensors, pressure sensors, conductivity sensors, turbidity sensors, Schall Bateldrucksensoren, "Lab-on-a Chip sensors, force sensors, acceleration sensors, inclination sensors, pH sensors, humidity sensors, magnetic field sensors, RFID sensors, magnetic field sensors, Hall sensors, biochips, odor sensors, hydrogen sulfide sensors and / or MEMS sensors.
- At least two sensor units are provided for measuring mutually different parameters, wherein very particularly preferably a sensor unit is a conductivity sensor and a further sensor unit is a temperature sensor. Furthermore, it is preferred that at least one sensor unit is a brightness sensor.
- the sensors are especially adapted to detect the beginning, the course and the end of a washing program. For this purpose, by way of example and not limitation, the sensor combinations listed in the following table can be used
- the conductivity sensor can be detected, for example, whether the conductivity sensor is wetted by water, so that, for example. determine if there is water in the dishwasher.
- the conductance or conductivity sensor may consist of an electrically conductive anode and a cathode which protrude from the housing of the metering device into the interior of the dishwasher or are electrically conductively connected to the interior of the dishwasher.
- the distance of the anode and cathode is selected so that an electrically conductive water bridge between the anode and cathode can form during operation of the dishwasher, which can be measured by a drop in the resistance between the anode and cathode.
- Rinsing programs usually have a characteristic temperature profile, the u.a. is determined by the heating of the rinse water and the drying of the dishes, which can be detected by a temperature sensor.
- the light penetration into the interior of a dishwasher can be detected when the dishwasher door is opened, resulting in e.g. indicates an end to the washing program.
- a turbidity sensor can also be provided. From this it is also possible, for example, to select a dosing program in the dosing device that applies to the determined contamination situation.
- the data line between the sensor and the control unit can be realized via an electrically conductive cable or wirelessly.
- at least one sensor outside the dosing device is positioned or positionable in the interior of a dishwasher and a data line - in particular wireless - for transmitting the measured data from the sensor to the dosing device is formed.
- a wirelessly formed data line is formed in particular by the transmission of electromagnetic waves or light. It is preferable to form a wireless data line according to standardized standards such as Bluetooth, IrDA, IEEE 802, GSM, UMTS, etc.
- At least one sensor unit is arranged on or in the control unit.
- the sensor unit is arranged at the bottom of the dosing device, wherein in the position of use the bottom of the dosing device is directed downward in the direction of gravity.
- the sensor unit comprises a temperature and / or a conductivity sensor.
- the energy consumers of the dosing in particular the control unit, including an on / off switch can be connected to the power source and the energy source only after reaching the On-state of the on / off switch loaded with a sensor unit forms the on / off switch or is connected to this and switches.
- the sensor unit prefferably has two contacts in contact with the environment at the bottom of the dosing device, in particular configured as contact pins projecting downwards from the bottom, one contact as anode contact and the other contact as cathode contact the power source is connected and that without electrically conductive connection between the contacts of the off-state located on / off switch remains in the off state and upon the emergence of an electrically conductive connection between the contacts of the off-state on / off Switch in the on state switches.
- the on / off switch is provided or combined with a self-holding circuit which ensures latching of the energy supply of the energy consumers after reaching the on state of the on / off switch up to a switch-off signal of the control unit . causes.
- the on / off switch can be designed in particular as a transistor circuit. It is preferable that the transistor of the on / off switch designed as a pnp transistor and the emitter, possibly via a drive circuit, to the supply voltage to the collector, possibly via a drive circuit to ground and to the cathode contact and the base on the one hand, possibly via a drive circuit, to the supply voltage, on the other hand, if necessary via a drive circuit to the anode contact, is connected.
- the drive circuit preferably has at least one drive resistor, which is designed in particular as a resistance voltage divider.
- a sensor unit designed as a conductivity sensor which has two contacts in contact with the environment at the bottom of the dosing device and the anode contact of the on / off Sensor unit is simultaneously the anode contact of the conductivity sensor forming sensor unit.
- the sensor unit forming the temperature sensor may be integrated in a contact, in particular the cathode contact, of the sensor unit forming the conductivity sensor.
- the contact of the sensor unit forming the conductivity sensor, which receives the temperature sensor may preferably be designed as a hollow contact pin, in which the temperature sensor of the sensor unit forming the temperature sensor is arranged.
- the contacts of a conductivity sensor arranged on the bottom side are surrounded by an electrically conductive silicone.
- the conductivity sensor may in this case be designed, in particular in the form of a resistance measurement, between two contacts spaced apart from one another and in contact with the surroundings of the dosing device.
- the silicone is flush-mounted in the bottom of the metering device.
- the silicone has an approximately circular base. The silicone shows a good wettability with water and thus provides good measurement results regarding the detection of water in the dishwasher.
- a control unit in the sense of this application is a device which is suitable for influencing the transport of material, energy and / or information.
- the control unit influences actuators with the aid of information, in particular of measuring signals of the sensor unit, which processes them in the sense of the control target.
- control unit may be a programmable microprocessor.
- a plurality of dosing programs is stored on the microprocessor, which are selectable and executable in a particularly preferred embodiment according to the container coupled to the dosing device.
- control unit is coupled to the existing controller of the household appliance.
- this coupling is wireless.
- a transmitter on or in a dishwasher preferably on or at the dosing chamber embedded in the door of the dishwasher, which wirelessly transmits a signal to the dosing unit when the dosing unit Control of the household appliance causes the dosage, for example, a detergent from the metering chamber or rinse aid.
- the control unit can store several programs for releasing different preparations or releasing products in different applications.
- data such as e.g. Control and / or dosing of the control unit or stored by the control unit operating parameters or logs are read from the control unit or loaded into the control unit.
- This can be realized for example by means of an optical interface, wherein the optical interface is correspondingly connected to the control unit.
- the data to be transmitted are then coded and transmitted or received as light signals, in particular in the visible range, the wavelength range between 600 and 800 nm being preferred.
- a present in the metering sensor for transmitting data from and / or to the control unit.
- the contacts of a conductivity sensor which are connected to the control unit and which provides a conductivity determination by means of a resistance measurement at the contacts of the conductivity sensor, can be used for data transmission.
- a dishwasher suitable for the metering system according to the invention has, in particular, a closable washing compartment.
- the washing compartment of a dishwasher is opened or closed by a door or drawer.
- the washing compartment is protected against the entry of ambient light.
- the walls of the washing compartment have in particular a gloss level of at least 10 gloss units, preferably at least 20 gloss units, particularly preferably at least 45 gloss units measured according to DIN 67530 with a 60 ° geometry.
- a gloss level of at least 10 gloss units preferably at least 20 gloss units, particularly preferably at least 45 gloss units measured according to DIN 67530 with a 60 ° geometry.
- Average gloss level means the gloss level averaged over the entire surface of a wall.
- the mean gloss level of Spülraumend is at least 10 gloss units, preferably at least 20 Gloss units, more preferably at least 45 gloss units measured according to DIN 67530 with a 60 ° geometry.
- Mean washroom gloss level means the gloss level averaged over the entire surface of all washroom walls.
- the mean flushing gloss level is at least 10 gloss units, preferably at least 20 gloss units, particularly preferably at least 45 gloss units measured according to DIN 67530 with a 60 ° geometry.
- the walls of the washing compartment have a reflectance of at least 50%.
- Average reflectance means the reflectance averaged over the entire surface of a wall.
- the mean reflectance of the Spülraumend is at least 50%.
- Average washdown reflectance means the reflectance averaged over the entire surface of all washroom walls.
- the average Spülraumreflexionsgrad is at least 50%.
- the walls of the washing compartment on optical reflection elements serve the most homogeneous possible distribution of the optical signals, in particular in the visible and / or IR range within the washing compartment, so that reduced or completely avoided by the corresponding reflections zones of optical signal shadow within the washing compartment.
- the reflection elements are formed integrally with the Spülraum concernedn.
- the optical reflection elements protrude out of the plane of the SpülraumDef and into the washing compartment inside.
- the optical reflection elements are formed as depressions in the Spülraum paragraphn.
- the optical reflection elements can take any suitable spatial form, in particular the optical reflection elements are, for example dome-shaped, cup-shaped, frustoconical, cuboidal, cube-shaped, with rounded or pointed edges and / or combinations thereof.
- the reflection elements can be arranged in particular approximately in the middle of a Spülraumwand. However, it is also conceivable additionally or alternatively, to provide reflection elements at the edges or corners of a Spülraumwand to the risk of signal shadow especially in the rear, lower and upper corners of the washing compartment (viewed from the dishwasher door).
- the dosing device can emit signals to a dispensing device fixed in a dishwasher and / or receive signals from a dispensing device fixed in a dishwasher.
- the dispensing device for dispensing at least one preparation into the interior of a dishwasher may, in particular, be a cleaning agent dispenser, a dispenser for rinse aid or salt or a combination dispenser.
- the dispensing device advantageously comprises at least one transmitting unit and / or at least one receiving unit for the wireless transmission of signals into the interior of the dishwasher or for the wireless reception of signals from the interior of the dishwasher.
- the transmitting unit and / or receiving unit is configured to transmit or receive optical signals. It is very particularly preferred that the transmitting unit and / or receiving unit is configured to emit or receive light in the visible range. Since darkness usually prevails in the interior of the dishwasher during operation of a dishwasher, signals in the visible and optical range, for example in the form of signal pulses or light flashes, can be emitted and detected.
- the transmitting unit and / or receiving unit is configured to emit or receive infrared signals.
- the transmitting unit and / or receiving unit is configured to transmit or receive infrared signals in the near infrared range (780nm-3,000nm).
- the transmitting unit comprises at least one LED.
- the transmitting unit comprises at least two LEDs. It is particularly advantageous that at least two LEDs are arranged in an offset by 90 ° to each other radiation angle. As a result, the danger of signal shadows, in which a freely positionable receiver of the signals, in particular a dosing device, could be due to the generated multiple reflections within the dishwasher reduce. It is also possible according to a further preferred embodiment of the invention to provide at least two LEDs which emit light in a mutually different wavelength. This makes it possible, for example, to define different signal bands on which information can be sent or received.
- At least one LED is an RGB LED whose wavelength is adjustable.
- an LED can be used to define different signal bands that emit signals at different wavelengths.
- light is emitted at a different wavelength during the drying process, during which there is a high level of atmospheric humidity (mist) in the washing compartment, than, for example, during a washing step.
- the transmitting unit of the dispensing device can be configured so that the LED both for transmitting signals inside the dishwasher, especially when the dishwasher door is closed, as well as for visual display of an operating condition, for example, the level of the salt or rinse aid storage container of a dishwasher, especially with the dishwasher door open is provided.
- an optical signal is designed as a signal pulse or a sequence of signal pulses with a pulse duration between 1 ms and 10 seconds, preferably between 5 ms and 100 ms seconds.
- the transmitting unit is configured such that it emits an optical signal with the dishwasher closed, that an average illuminance E between 0.01 and 100 lux, preferably between 0, 1 and 50 lux measured at the Spülraum limiting walls causes. This illuminance is then sufficient to cause multiple reflections with or on the other Spülraum14n and so possible signal shadows in the washing compartment, in particular in the loading condition of the dishwasher to reduce or prevent.
- the receiving unit of the dispensing device may in particular comprise a photodiode.
- the dispensing device can additionally or alternatively also be configured for transmitting or receiving radio signals.
- the signal transmitted by the transmitting unit and / or receiving unit is, in particular, a carrier of information, in particular a control signal. It is particularly preferred that the dispensing device is arranged in the door of a dishwasher.
- a receptacle for releasably fixing a dosing device to the dispensing device can be provided on the dispensing device. This makes it possible, for example, to position the dosing device not only in the dish drawer of a dishwasher, but also directly to a dispenser of the dishwasher, in particular a Kombidosier réelles to fix. On the one hand, this does not occupy a loading space in the dish drawer by the metering device, on the other hand, a defined positioning of the metering device takes place relative to the dispensing device.
- Frequently dispensing devices such as a Kombidosier réelle a hinged flap, which is opened within a wash program to deliver the cleaning preparation located in the dosing of the Kombi réelles inside the dishwasher.
- the receptacle for the dosing device can now be formed on the dispensing device in such a way that an opening of the flap is prevented when the dosing device is fixed in the receptacle. As a result, the risk of a double dose from the metering device and the dispenser is prevented.
- fixation of the dispensing device and the transmitting and / or receiving unit in such a way that at least the transmitting unit irradiates directly onto the receiver of the metering device arranged in the fixation.
- the metering device not permanently connected to the dishwasher for use in a dispensing system comprising the dispenser at least one receiving and / or at least one transmitting unit for wireless transmission of signals from the interior of the dishwasher to the dispenser or for wireless reception of signals from the dispenser.
- Fig. 1 positioning of the dosing in a dishwasher
- the dosing device 2 with the cartridge 1 is in principle positionable anywhere within the dish drawer 1 1, wherein it is advantageous, a dish-shaped or cup-shaped dosing 1, 2 in a corresponding plate or cup receptacle of the dish drawer. 1 1 provide.
- a metering chamber 53 in which a dishwasher cleaner preparation can be given, for example in the form of a tablet.
- FIG. 2 shows the possible arrangement of the dosing device in the dish rack of a dishwasher.
- FIG. 2 shows the dosing device 2 coupled to a cartridge 1 in the dish receptacle 1 10 of a dish drawer 41.
- the usually grid-like trained drawer tray 41 has struts 109 in which the fixing means 108 of the metering device 2 engage. In this way, a lateral slipping of the dosing device 2, for example, when pulling out or pushing the dish drawer 41 into the dishwasher 38, avoided.
- the metering device 2 has on the bottom side a conductivity sensor with a protruding from the bottom of the metering anode and cathode, which is also clearly visible in Fig. 3.
- the conductivity sensor is arranged at the bottom side on the dosing device 2 in the direction of gravity.
- the control unit (not visible) arranged in the dosing device 2 and the conductivity sensor are configured such that a discontinuous, discrete resistance measurement is performed on the conductivity sensor.
- the control unit is designed as, in particular programmable microcontroller.
- the frequency of the resistance measurement is adjusted via the control unit so that it corresponds to at least the maximum rotational frequency of a spray arm inside the dishwasher.
- the frequency of the resistance measurement is selected so that at least 100, preferably at least 200, resistance measurements are made on the conductivity sensor per second.
- the measurement frequency affects the detection or gautechnik the Sprüharmrotation.
- FIG. 6 a typical temperature course over a period of time for a wash program is recorded in the upper section.
- the measurement results of the resistance measurement on the conductivity sensor determined parallel to the temperature profile are plotted over time.
- the measuring frequency of the resistance measurement was set to 50 measurements / sec. limited. It can be seen that a concrete statement about the standstill of the spray arm or its frequency is not possible.
- the measurement frequency was increased to 250 measurements / sec. It can be seen immediately that no water was detected on the conductivity sensor between the approx. 21 and approx. 23 minutes after the beginning of the measurement, ie the spray arm did not rotate in this time interval. The same applies to the time after about 32 minutes after the beginning of the measurement.
- the resistance measurement on the conductivity sensor is plotted against time in seconds.
- the measuring frequency of the resistance measurement at the conductivity sensor is 100 measurements / sec. It can be seen on the basis of the recorded measurement curves that the spray arm passes the conductivity sensor approximately every 1.6 seconds, so that a rotation frequency of the two-legged spray arms arranged at 180 ° to one another Sprüharms of about 3.2 U / sec results.
- the information determined by the method and system according to the invention as to whether and at what speed the spray arm rotates during operation of the dishwasher can be used in a variety of ways within a rinsing process.
- the dosing device may include a corresponding optical or acoustic display device, or the information is, as will be explained in more detail below, optically transmitted to the control unit of the dishwasher and visually or acoustically displayed on the dishwasher.
- the information about the spray arm rotation transmitted to the dishwasher controller by the dosing device is compared with the executed rinse program so as to be able to conclude malfunctions of the spray arm, for example a too low or too high rotational speed of the spray arm.
- an adjustment of the rotational speed of the spray arm or of the spray arms takes place on the basis of the measured spray arm rotational speed in conjunction with further measuring parameters, such as, for example, the degree of soiling.
- further measuring parameters such as, for example, the degree of soiling.
- test program in the dishwasher that, when the machine is completely unloaded, checks whether the dosing device can reliably detect a spray arm rotation at a location selected by the user.
- This test program may, for example, provide for injection of tap water for a period of 1-5 minutes.
- the test program can particularly preferably be called up and activated via an associated control button on the dishwasher. Below will be discussed in more detail on the dosing device 2.
- Fig. 3 shows the cartridge
- the width (B) is substantially greater than the depth (T) of the cartridge 1.
- the ratio of the depth (T) to the width (B) of the cartridge 1 is approximately 1:20, whereby the dosing device 2 easily into a plate receptacle of a dish drawer 41 can be made.
- FIG. 4 shows a dishwasher 38 in a schematic cross-sectional view. Inside the dishwasher 38 are arranged one above the other, two dish drawers 41a, 41b for receiving dishes such as plates, cups, etc ..
- the dishwasher 38 has a pivotable door 39, which is shown in Figure 33 in the closed state.
- a transmission unit 87 is integrated, which is coupled to the control of the dishwasher 38.
- the transmitting unit 87 is integrated in a Kombidosierêt 53.
- the transmission unit 87 comprises an LED which emits an optical signal 88, which is a carrier of information, for example a control command, into the interior of the dishwasher 38. This signal and its direction are indicated by the arrow.
- the broken line of the arrow indicates that the optical signals 88 emitted by the transmitting unit 87 are light pulses or light pulses.
- the dosing device transmits optical signals to the dishwasher, in particular signals that contain information about the Sprüharmrotation.
- the dosing device 2 is positioned with a cartridge 1.
- the dosing device 2 with the cartridge 1 at any suitable location of the lower or upper dish drawer 41, wherein provided in or on the dish drawer 41 plate receptacles for the arrangement of the dosing
- the arrangement of the dosing device 2 should take place immediately above a spray arm, so that unimpeded, direct water wetting is ensured by the spray arm in the operation of the dishwasher.
- the dosing device 2 has a receiving unit 91, which is not shown.
- the optical signals 88 emitted by the transmitting unit 87 are received by the receiving unit 91 of the dosing device 2 and evaluated or converted by the control unit of the dosing device 2.
- Signals are sent from an optical transmitting unit of the dosing device 2 to the dishwasher and processed there.
- an optical signal 88 can be emitted by the transmitting unit 87 at the beginning of a washing program such that, after receipt by the dosing device 2, the control of the dosing device 2, in particular the control of dosing times and quantities, passes to the control of the dishwasher 38.
- This is particularly advantageous if the control of the dosing device 2 has own dosing programs for a self-sufficient operation of the dishwasher 38, but they should not be performed when detecting a corresponding signal 88 of an existing transmitting unit 87.
- FIG. 5 shows a metering chamber 53 into which a transmitting unit 87 and a receiving unit 91 are integrated.
- a metering chamber 53 is also referred to as Kombidosier réelle.
- the dosing chamber 53 has a receptacle for a dishwashing agent which can be closed by a hinged closure lid.
- the metering chamber 53 may still have a receptacle for a rinse aid, which is indicated by the circular closure to the right of the closure lid.
- the transmission unit 87 comprises a luminous means, which is arranged in the transmission unit 87 such that the luminous means radiates into the interior of the dishwasher.
- the lighting means may in particular be an LED or a laser diode.
- the LED is arranged so that it protrudes from the plane of the transmission unit 87, so that the LED generates the largest possible radiation angle.
- the transmission unit 87 can be configured such that the LED both for transmitting signals inside the dishwasher 38, in particular when the dishwasher door 39 is closed, and for visually displaying an operating state, for example the level of the salt or rinse aid storage container of a dishwasher, in particular when open Dishwasher door 39 is provided.
- the receiving unit 91 preferably consists of a photodiode, which is suitable for detecting light signals from the interior of the dishwasher. Like the transmitting unit 87, the photodiode of the receiving unit 91 can protrude out of the plane of the receiving unit in order to achieve the best possible irradiation characteristic on the photodiode.
Landscapes
- Washing And Drying Of Tableware (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE200910044960 DE102009044960A1 (de) | 2009-09-24 | 2009-09-24 | Verfahren und System zur Detektion der Rotation eines Sprüharms in einer Geschirrspülmaschine |
| PCT/EP2010/054683 WO2011035940A1 (de) | 2009-09-24 | 2010-04-09 | Verfahren und system zur detektion der rotation eines sprüharms in einer geschirrspülmaschine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP2453783A1 true EP2453783A1 (de) | 2012-05-23 |
Family
ID=43502845
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP10713630A Withdrawn EP2453783A1 (de) | 2009-09-24 | 2010-04-09 | Verfahren und system zur detektion der rotation eines sprüharms in einer geschirrspülmaschine |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP2453783A1 (de) |
| DE (1) | DE102009044960A1 (de) |
| WO (1) | WO2011035940A1 (de) |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102011079488A1 (de) * | 2011-07-20 | 2013-01-24 | Henkel Ag & Co. Kgaa | Verfahren und Vorrichtung zur Detektion eines Wasserwechsels in einem wasserführenden Haushaltsgerät, insbesondere einer Geschirrspülmaschine |
| DE102011084179B4 (de) * | 2011-10-07 | 2015-02-12 | BSH Bosch und Siemens Hausgeräte GmbH | Haushaltsgerät und Verfahren zum Übertragen von Daten in einem Haushaltsgerät |
| DE102012101112B4 (de) * | 2012-02-14 | 2018-10-31 | Miele & Cie. Kg | Programmgesteuerter Spülautomat |
| US9220393B2 (en) | 2012-09-13 | 2015-12-29 | Whirlpool Corporation | Dishwasher with controlled rotation of lower spray arm |
| US9198556B2 (en) | 2013-01-29 | 2015-12-01 | Whirlpool Corporation | Method of determining a blocked rotating spray arm in a dishwasher |
| AT514640B1 (de) * | 2013-07-22 | 2015-05-15 | Hagleitner Hans Georg | Messvorrichtung zur Erfassung wenigstens eines Parameters einer Flüssigkeit |
| DE102013226637A1 (de) | 2013-12-19 | 2015-06-25 | Meiko Maschinenbau Gmbh & Co. Kg | Reinigungsvorrichtung und Verfahren zur Reinigung von Reinigungsgut |
| DE102016112442A1 (de) * | 2016-07-07 | 2018-01-11 | Sanhua Aweco Appliance Systems Gmbh | Geschirrspüler mit Sensoreinheit zur Bestimmung einer Drehbewegung eines Sprüharms |
| DE102016112440A1 (de) * | 2016-07-07 | 2018-01-11 | Sanhua Aweco Appliance Systems Gmbh | Geschirrspüler mit Sensoreinheit zur Bestimmung einer Drehbewegung eines Sprüharms |
| CN109938662B (zh) * | 2017-12-21 | 2022-07-22 | 青岛海尔洗碗机有限公司 | 一种洗碗机的喷淋报警系统及安装有该系统的洗碗机 |
| KR20220072650A (ko) * | 2020-11-25 | 2022-06-02 | 엘지전자 주식회사 | 센서 고정 부재 및 센서 고정 부재를 포함하는 식기 세척기 |
| CN114018556B (zh) * | 2021-10-29 | 2024-07-30 | 北京红岸水滴科技发展有限公司 | 一种清洗设备的洗臂测试装置、方法及清洗设备 |
| CN114795048A (zh) * | 2022-06-06 | 2022-07-29 | 珠海格力电器股份有限公司 | 洗碗机喷臂碰撞检测方法、装置、设备以及洗碗机 |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4020898A1 (de) * | 1990-06-30 | 1992-01-02 | Licentia Gmbh | Geschirrspuelmaschine mit einem sprueharm |
| DE19732856C2 (de) * | 1997-07-30 | 2000-05-18 | Bht Hygiene Technik Ing H Bier | Reinigungsmaschine und Überwachungsverfahren |
| IT1310723B1 (it) * | 1999-09-16 | 2002-02-22 | Elbi Int Spa | Dispositivo per rilevare le condizioni di funzionamento di almenouna girante di spruzzatura di una macchina lavastoviglie |
| EP1306045A1 (de) * | 2001-10-23 | 2003-05-02 | Chemische Fabrik Dr. Weigert GmbH & Co. KG. | Vorrichtung zum Überwachen des Spülvorgangs in einer Spülmaschine |
| DE102005046803B4 (de) * | 2005-09-30 | 2008-04-03 | Electrolux Home Products Corporation N.V. | Geschirrspülmaschine mit Sprüharm |
| US7709781B2 (en) * | 2007-01-19 | 2010-05-04 | Marquardt Gmbh | Rotation sensor for a spraying arm in a dishwasher |
| DE102008027284A1 (de) * | 2007-10-30 | 2009-05-07 | Aweco Appliance Systems Gmbh & Co. Kg | Dosiervorrichtung für die Dosierung von Reinigungs-, Wasch- oder Spülmitteln in Haushaltsmaschinen, insbesondere Geschirrspülmaschinen |
| DE102008033108A1 (de) * | 2008-07-15 | 2010-01-21 | Henkel Ag & Co. Kgaa | Koppelbares Dosiergerät |
| EP2241241A1 (de) * | 2009-04-14 | 2010-10-20 | Chemische Fabrik Dr. Weigert GmbH & Co. KG | Vorrichtung zur Flüssigkeitsentnahme aus einem Behälter |
-
2009
- 2009-09-24 DE DE200910044960 patent/DE102009044960A1/de not_active Withdrawn
-
2010
- 2010-04-09 WO PCT/EP2010/054683 patent/WO2011035940A1/de not_active Ceased
- 2010-04-09 EP EP10713630A patent/EP2453783A1/de not_active Withdrawn
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2011035940A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102009044960A1 (de) | 2011-03-31 |
| WO2011035940A1 (de) | 2011-03-31 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP2453783A1 (de) | Verfahren und system zur detektion der rotation eines sprüharms in einer geschirrspülmaschine | |
| EP2544578B1 (de) | Verfahren zur steuerung eines im inneren eines wasserführenden haushaltsgeräts positionierbaren dosiersystems | |
| EP2299892B1 (de) | Koppelbares dosiergerät | |
| EP2642908B1 (de) | Dosiersystem für eine geschirrspülmaschine | |
| EP2297500B1 (de) | Aktuator für ein dosiersystem | |
| EP2296522B1 (de) | Dosiersystem mit bauelementträger | |
| EP2303091B1 (de) | Anordnung zur Kopplung eines Dosiersystems mit einer wasserführenden Leitung einer Geschirrspülmaschine | |
| EP2306881A2 (de) | Haushaltsmaschine | |
| EP2528487B1 (de) | Dosiergerät für eine geschirrspülmaschine mit optischer sende- und/oder empfangseinheit | |
| EP2451335B1 (de) | Verfahren zur steuerung einer im inneren einer geschirrspülmaschine beweglich angeordneten dosiervorrichtung | |
| EP2398952A1 (de) | Verfahren zum betrieb eines in einem haushaltsgerät angeordneten dosiergeräts, dosiergerät und haushaltsgerät hierzu | |
| EP2303092A2 (de) | Sensoranordnung für ein dosiersystem | |
| EP2398371A1 (de) | Abgabevorrichtung mit sende- und/oder empfangseinheit zur drahtlosen übermittlung von signalen | |
| WO2010007049A1 (de) | Dosiersystem mit abgabe einer zubereitung in die gasphase | |
| DE102012109560A1 (de) | Haushaltsgerät mit einem signalrelais | |
| EP2398373B1 (de) | Dosiergerät mit dosierkammer | |
| DE102011079488A1 (de) | Verfahren und Vorrichtung zur Detektion eines Wasserwechsels in einem wasserführenden Haushaltsgerät, insbesondere einer Geschirrspülmaschine | |
| EP2545216B1 (de) | Verfahren zum betrieb eines dosiersystems im inneren eines wasserführenden haushaltsgeräts | |
| WO2010094386A1 (de) | Dosiergerät zur abgabe von wenigstens einer wasch- und/oder reinigungsmittelzubereitung ins innere eines haushaltsgeräts |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
| 17P | Request for examination filed |
Effective date: 20120102 |
|
| AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM TR |
|
| RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: KESSLER, ARND Inventor name: NITSCH, CHRISTIAN Inventor name: FILECCIA, SALVATORE Inventor name: BASTIGKEIT, THORSTEN Inventor name: JANS, GEROLD |
|
| DAX | Request for extension of the european patent (deleted) | ||
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
| 18D | Application deemed to be withdrawn |
Effective date: 20131031 |
|
| R18D | Application deemed to be withdrawn (corrected) |
Effective date: 20131101 |