EP4026474A1 - Appareil électroménager, en particulier lave-vaisselle - Google Patents
Appareil électroménager, en particulier lave-vaisselle Download PDFInfo
- Publication number
- EP4026474A1 EP4026474A1 EP22150400.4A EP22150400A EP4026474A1 EP 4026474 A1 EP4026474 A1 EP 4026474A1 EP 22150400 A EP22150400 A EP 22150400A EP 4026474 A1 EP4026474 A1 EP 4026474A1
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- EP
- European Patent Office
- Prior art keywords
- door
- appliance
- appliance door
- actual value
- value
- 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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Images
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
- A47L15/4251—Details of the casing
- A47L15/4257—Details of the loading door
- A47L15/4261—Connections of the door to the casing, e.g. door hinges
-
- 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
- A47L15/42—Details
- A47L15/4251—Details of the casing
- A47L15/4257—Details of the loading door
- A47L15/4259—Arrangements of locking or security/safety devices for doors, e.g. door latches, switch to stop operation when door is open
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F33/00—Control of operations performed in washing machines or washer-dryers
- D06F33/30—Control of washing machines characterised by the purpose or target of the control
- D06F33/47—Responding to irregular working conditions, e.g. malfunctioning of pumps
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
- D06F37/42—Safety arrangements, e.g. for stopping rotation of the receptacle upon opening of the casing door
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00
- D06F39/12—Casings; Tubs
- D06F39/14—Doors or covers; Securing means therefor
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F58/00—Domestic laundry dryers
- D06F58/32—Control of operations performed in domestic laundry dryers
- D06F58/34—Control of operations performed in domestic laundry dryers characterised by the purpose or target of the control
- D06F58/50—Responding to irregular working conditions, e.g. malfunctioning of blowers
-
- 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
- A47L2401/26—Loading door status, e.g. door latch opened or closed state
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L2401/00—Automatic detection in controlling methods of washing or rinsing machines for crockery or tableware, e.g. information provided by sensors entered into controlling devices
- A47L2401/34—Other automatic detections
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L2501/00—Output in controlling method of washing or rinsing machines for crockery or tableware, i.e. quantities or components controlled, or actions performed by the controlling device executing the controlling method
- A47L2501/22—Loading doors, e.g. door latches, inflatable door seals
-
- 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
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F2103/00—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
- D06F2103/38—Time, e.g. duration
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F2103/00—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
- D06F2103/40—Opening or locking status of doors
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F2105/00—Systems or parameters controlled or affected by the control systems of washing machines, washer-dryers or laundry dryers
- D06F2105/58—Indications or alarms to the control system or to the user
- D06F2105/60—Audible signals
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F2105/00—Systems or parameters controlled or affected by the control systems of washing machines, washer-dryers or laundry dryers
- D06F2105/62—Stopping or disabling machine operation
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F25/00—Washing machines with receptacles, e.g. perforated, having a rotary movement, e.g. oscillatory movement, the receptacle serving both for washing and for centrifugally separating water from the laundry and having further drying means, e.g. using hot air
Definitions
- the invention relates to a household appliance, in particular a water-carrying household appliance, for example in the form of a dishwasher, with an appliance container providing a treatment space, which has a loading opening for access to the treatment space, which can be closed by means of an appliance door pivoted about a pivot axis, and with a motor device which is in operative connection with the appliance door and by means of which the appliance door can be transferred from an open position into a closed position which closes the charging opening.
- a household appliance in particular a water-carrying household appliance, for example in the form of a dishwasher
- an appliance container providing a treatment space, which has a loading opening for access to the treatment space, which can be closed by means of an appliance door pivoted about a pivot axis, and with a motor device which is in operative connection with the appliance door and by means of which the appliance door can be transferred from an open position into a closed position which closes the charging opening.
- Household appliances within the meaning of the invention are not only water-bearing household appliances such as dishwashers, washing machines and/or dryers, but also refrigerators, freezers, ovens, microwaves, steam cookers and/or the like.
- a household appliance of the generic type has a housing that accommodates a device container, which in turn provides a treatment room. When used as intended, this is used to hold goods, which in the case of a dishwasher, for example, are items to be washed, such as crockery, cutlery items and/or the like.
- the device container has a loading opening so that the user can access the treatment room. This can be closed by means of an appliance door, with the closure typically being fluid-tight in the case of a water-bearing household appliance.
- the appliance door can typically be pivoted on the housing by means of a hinge arranged, usually about a horizontally extending pivot axis.
- a hinge arranged, usually about a horizontally extending pivot axis.
- the appliance door is transferrable by means of the motor device from an open position to a closed position which closes the charging opening.
- the appliance door is typically oriented vertically in the closed position, whereas it is in a horizontal position when the loading opening is fully open.
- a motor device for at least motor-driven closing of the appliance door provides the user with the advantage of simplified handling.
- remote control of the appliance door is possible, for example via a mobile terminal device carried by the user.
- the disadvantage is that uncontrolled blockages can occur, for example because a washing basket that is not fully retracted prevents the appliance door from closing.
- the invention proposes a household appliance on the device side, which is characterized by a control device that uses a sensor device to detect the movement of the appliance door as a change in the appliance door position over time when the appliance door is moved from an open position to the closed position, and a sensor device that corresponds to the appliance door position Emits a signal as an actual value, which compares the actual value with a predefinable target value using a comparison circuit and switches off the motor device with a deactivation device if the actual value deviates from the target value outside of a predefinable tolerance window.
- an unwanted blocked position of the appliance door is reliably avoided in that a reliable emergency shutdown of the motor device takes place when sensors detect an actual position of the appliance door that deviates from the target position of the appliance door. If the door spring of the appliance door is defective and/or the appliance door cannot pivot as intended because it is blocked, the actual position will deviate from the target position, and this will be recognized by the appliance and result in an automatic emergency shutdown of the motor unit appliance door with the result that the appliance door is shut down. Stopping the appliance door in this way also provides the safety-relevant advantage in particular that the user's limbs cannot be accidentally trapped or crushed in the door gap between the appliance door and the appliance housing.
- sensing the motor current represents a common measure for detecting blockage positions in order to stop the drive by switching off the motor current if necessary.
- the motor current increases significantly, which can be recorded and used as a criterion for switching off.
- sensing the motor current is not sufficiently reliable as a criterion for detecting a blocked position. There are several reasons for this.
- the appliance door in the open position, the appliance door is basically in a horizontal alignment, whereas in the closed position it is aligned vertically. This means that due to the design, the closing force at the beginning of a closing movement is much higher than when the closed position is reached.
- the household appliance according to the invention has a control device.
- This control device in turn has a sensor device, a comparison circuit and a switch-off device.
- the sensor device detects the movement of the appliance door as a change in the position of the appliance door over time. This detection preferably takes place continuously, but can also take place at suitable discrete time intervals. However, continuous detection is preferred, since this achieves an increased level of security.
- the sensor device emits a signal corresponding to the appliance door position as an actual signal to the comparison circuit.
- the sensor device and the comparison circuit are connected in terms of communication technology.
- the comparison circuit By means of the comparison circuit, a comparison takes place between the actual values transmitted from the sensor device to the comparison circuit on the one hand and predeterminable desired values on the other hand. This comparison makes it possible to determine whether the appliance door is in its intended position during a closing movement. If the actual values deviate from the target values, i.e. if there is an inequality, this means that the appliance door is no longer in its intended position. In this case, the appliance door is shut down by means of a switch-off device by switching off the motor device.
- a predefinable tolerance range is taken into account when comparing actual values and target values.
- the motor device is therefore only switched off when an actual value deviates from a setpoint value outside of a predefinable tolerance window.
- the size of the tolerance window can preferably be adjusted, also retrospectively, so that the response behavior of the switch-off device can be readjusted if necessary and adapted to any special features at the installation site of the dishwasher.
- the invention proposes sensing the position of the appliance door.
- an automatic switch-off of the motor device ensures that the appliance door stops moving if the ascertained, actual position of the appliance door deviates from the position to be expected when it is used as intended.
- the configuration according to the invention is therefore aimed at monitoring the position of the appliance door over time during the movement process of a door closure.
- the position values of the appliance door change continuously according to a previously known movement profile. If the appliance door is blocked, the position values of the appliance door no longer change, although the motor device is still energized. The blockage is detected on the basis of the discrepancy between the actual position values on the one hand and the position values to be expected according to the movement profile on the other.
- a dishwasher which has a sensor device arranged on the appliance door for emitting a sensor signal which is integrative for the door.
- the dishwasher has a control device that is set up to detect the sensor signal and, depending on the detected sensor signal, to detect an abnormal door state from a number of predefined, possible abnormal states.
- this status detection does not make it possible to monitor a motor-driven transfer of an appliance door into the closed position. This is because the state of the appliance door changes constantly while a closing movement is being carried out, which means that an assignment to predeterminable abnormal states does not allow any conclusions to be drawn about a possible blockage position of the appliance door.
- the position of the appliance door in which it assumes a possible blocking position does not per se represent an abnormal condition. Because the decisive factor for a blocking position is that the motor device for the motorized transfer of the appliance door into the closed position is still energized, and it neither the position of the appliance door nor the energization of the motor device represent an anomalous state. It is therefore also not possible to detect a blocked position by selecting an anomalous state from a list of possible anomalous states.
- a fault in a door blockage can be reliably detected in a simple manner on the basis of a position or movement sensor system and the door drive can be switched off independently of the door weight and the door position over the entire door pivoting range.
- the sensor device has an acceleration sensor provided by the appliance door.
- a three-axis acceleration sensor can be used as such an acceleration sensor.
- Such a sensor is usually already installed in an appliance door, so that no additional expenditure and costs are required for implementation of the embodiment according to the invention.
- Such a three-axis acceleration sensor is known per se from the prior art. It measures acceleration, with vibration being proportional to acceleration.
- a possible measuring principle of such a sensor is that according to which the sensor capacitively measures the deflection of a reference mass. The deflection of the reference mass is proportional to the acceleration.
- Such sensors can be designed as a micro-electro-mechanical system (MEMS).
- an acceleration sensor in particular a three-axis acceleration sensor
- another sensor can also be used, including a combination of several sensors that work independently of one another. It is of essential importance to the invention that an actual appliance door position can be detected by means of the sensor device in the manner described above, so that a comparison between an actual position on the one hand and a target position on the other hand is made possible with the aim of in the event of a blockage and/or in the event of a to be able to bring about an emergency shutdown of the motor device interacting with the appliance door in the event of a defective door spring.
- Speed sensors, position sensors, inclination sensors and/or the like can be used as sensors in this sense.
- the household appliance has a signaling device for emitting acoustic and/or optical signals, the signaling device being in communication with the switch-off device. This allows a blocked position of the appliance door to be indicated visually and/or acoustically to a user. This makes sense in particular if the appliance door is remote controlled by the user.
- the predefinable tolerance window can be adjusted. It is permitted to set the response behavior of the defeat device. In particular, subsequent adjustment is also made possible, which enables adaptation to the environmental influences prevailing at the installation site of the household appliance.
- the invention also proposes a method for operating a household appliance, in particular a household appliance of the type described above, which has a device container that provides a treatment room and is used for access to the treatment room has a loading opening which can be closed by means of an appliance door which is mounted such that it can rotate about a pivot axis, and which has a motor device which is in operative connection with the appliance door and by means of which the appliance door can be transferred from an open position into a closed position which closes the loading opening, in which at a transfer of the appliance door from an open position to the closed position, the movement of the appliance door is detected as a change in the appliance door position over time by means of a sensor device and a signal corresponding to the appliance door position is emitted as an actual value, in which the actual value is compared with a predeterminable target value by means of a Comparison circuit is compared and in which the motor device is switched off by means of a switch-off device when the actual value deviates from the desired value outside a predeterminable
- the tolerance window is selected with a deviation of less than 10%, preferably less than 5%, even more preferably less than one percent of the target value.
- the tolerance window must always be selected in such a way that the motor device can be switched off reliably and safely. Particularly from the point of view of safety, the motor device must be switched off to avoid injuries to the user as a result of entrapment. On the other hand, the motor should not be switched off if, for example due to temperature influences and the associated material expansion, the actual position of the appliance door differs from an actually expected position of the appliance door by just a few millimeters and/or a few degrees in the angle of inclination. It is therefore proposed to form the tolerance window in that an actual value is still accepted if it is slightly above or slightly below the target value, with this range resulting as a percentage of the target value.
- the motor device As soon as a deviation in the actual value outside the tolerance window is detected, the motor device is switched off immediately. Due to the inertia inherent in the system, there may be a time delay between the detection of a different actual value and the actual switching off of the engine setup come. However, this time offset should be as small as possible.
- the configuration according to the invention advantageously makes it possible, in the event of a defect, to be able to distinguish between a blockage of the appliance door on the one hand and a door spring breaking on the other. If the appliance door is blocked, the actual value will no longer change. This is because the appliance door no longer moves in the event of a blockage, which means that its actual position no longer changes. From the time of the blockage, the actual value remains unchanged. As soon as a constant actual value can be detected by the sensor device, this is equivalent to the appliance door being blocked in its movement.
- the actual value continues to change, unlike in the case of a blockage. This is because the appliance door is not blocked, so movement can still take place.
- the door spring is defective, the actual value deviates from the target value. The actual value therefore changes, so it is not the same as in the case of a blockage, but despite the change in the actual value, the target value to be expected is not reached, which can ultimately be interpreted as a defective door spring.
- the particular advantage of the configuration according to the invention is that the case of a defective door spring can be detected both at the beginning of a door closing and also when the door spring breaks during a door closing, i.e. after the beginning of a proper door closing. Because in both cases the actual value deviates from the target value but does not remain the same.
- the household appliance is thus set up to be able to differentiate between a blockage of the appliance door on the one hand and a defect or break in the door spring on the other.
- the actual value determined and characterizing the detected appliance door position deviates from its target value beyond the tolerance window, it is also detected whether the actual value is still changing over time, ie the door continues to move moves in the closing direction, or remains the same.
- the actual value is recorded at least at a point in time t 1 and at a later point in time t 2 and compared with one another.
- the time period ⁇ t between t 2 and t 1 should preferably be selected sufficiently large, but not too large, in order to minimize the risk emanating from an appliance door moving on as far as possible.
- a suitable value for this period is preferably between 50 ms and 500 ms, in particular around 250 ms.
- a corresponding warning signal for example optical and/or acoustic, is emitted, which alerts the user to the defective or broken door spring.
- FIG 1 shows a household appliance according to the invention in the form of a dishwasher 1 in a schematic side view.
- the dishwasher 1 has a housing 2 which accommodates an appliance container 3 .
- the appliance container 3 in turn provides a treatment chamber 4 which, when used as intended, serves to accommodate items to be cleaned.
- the device container 3 has a loading opening 5 for user-side access to the treatment room 4.
- the loading opening 5 can be closed in a fluid-tight manner by means of a device door 6 which is mounted such that it can rotate about a pivot axis.
- a door spring 9 is provided for simplified handling of the appliance door 6 . This is operatively connected to the appliance door 6 via a cable pull 8 .
- the door spring 9 In the open position of the appliance door 6, ie in the open position, as shown in figure 1 is shown, the door spring 9 is tensioned. In accordance with a transfer of the appliance door 6 in the closed position figure 3 the door spring 9 pulls together, which supports the closing process, ie the transfer of the appliance door 6 into the closed position. In the opposite case, ie if the appliance door 6 from the closed position figure 3 into the open position figure 1 is transferred, the force of gravity acting on the appliance door 6 ensures that the door spring 9 is tensioned, with the appliance door 6 being braked in its pivoting movement at the same time. An unintentional hard slamming of the appliance door 6 against a stop provided for this purpose is thus reliably avoided.
- the cable 8 is guided over two elements, in particular rollers, namely a deflection roller 13 and a drive roller 12.
- the drive roller 12 is operatively connected to a motor device 11 and is driven by this in the intended use.
- This configuration makes it possible, if necessary, to open the appliance door 6 by means of the motor device 11 also to be driven by a motor and from the open position figure 1 to the locked position figure 3 to transfer.
- another power transmission means can also be provided, such as a toothed belt, in which case the drive roller 12 is designed as a gear wheel for a positive connection with the toothed belt.
- the power transmission means between the appliance door 6 and the door spring 9 is designed as a cable 8, as a toothed belt or otherwise.
- the first thing that is decisive is that there is a motor device 11 that enables a motorized closing process of the appliance door 6, ie a transfer of the appliance door 6 from the open position to the closed position.
- the dishwasher 1 has a control device 14.
- the functional structure of the control device 14 is shown schematically in FIG figure 4 shown.
- the control device 14 has a sensor device 15, a comparison circuit 17, a memory 19 and a switch-off device 22.
- the sensor device 15 in turn has an acceleration sensor 16.
- the control device 14 uses the acceleration sensor 16 of the sensor device 15 to detect the movement of the appliance door 6 as a change in the appliance door position over time. In doing so, it emits a corresponding signal as the actual value in accordance with the arrow 18 .
- This actual value 18 is transferred to the comparison circuit 17 . This compares the actual value 18 with a predefinable desired value, which is available to the comparison circuit from the memory 19 in accordance with the arrow 20 .
- the comparison circuit emits a signal in accordance with the arrow 21 to the switch-off device 22. This takes care of this in accordance with the arrow 23 for switching off the motor device 11 and optionally in accordance with the arrow 24 for activating a signaling device 25, by means of which a user is acoustically and/or optically informed that the motor device 11 has been switched off.
- the figures 5 , 6 and 7 each show possible process scenarios, each based on a schematic diagram representation.
- figure 5 shows the door position in the upper diagram, whereas the lower diagram shows the switching state of the motor device 11.
- the dashed line represents the target status and the solid line the current status.
- figure 5 indicates a standard blockage of the appliance door 6, which occurs, for example, if one of the washing baskets 7 has not been properly moved into the treatment chamber 4 and is protruding out of the loading opening 5, or if an object and/or limbs of a user are in the door gap between the appliance door 6 and device container 3 are located.
- the door drive ie the motor device 11 is switched on and the appliance door 6 begins to move out of the open position figure 1 to the locked position figure 3 to move.
- the movement of the appliance door 6 is detected as a change in the position of the appliance door over time.
- a deviation between the actual position and the target position of the appliance door 6 is determined due to a blockage occurring. This leads to the motor device 11 being switched off at time t 2 .
- the period between t 1 and t 2 is due to the inertia of the overall system and should be as short as possible.
- figure 6 shows in a diagram the case that the door spring 9 already at the beginning of a Closing movement of the appliance door 6 is defective, for example broken. Shortly after the motor device 11 is switched on at time t 0 , it is recognized that the appliance door 6 is still moving, but according to the dotted line on a much flatter curve than expected. This difference in the movement path of the appliance door 6 is detected by sensors in the manner already described above by means of the configuration according to the invention, which leads to the motor device 11 being switched off at time t 2 .
- figure 7 shows the case in which the door spring 9 breaks during a closing movement of the appliance door 6, specifically after the closing movement has started at time t 0 , the door spring 9 breaks at time t 1 .
- the motor device 11 is switched off in the manner already prescribed at time t 2 .
- the configuration according to the invention makes it possible, in the event of a defect, to be able to distinguish between a blockage of the appliance door 6 and a break in the door spring 9 interacting with the appliance door 6 .
- figure 5 shows a blocked position in the manner already explained. It is significant that the appliance door 6 is stopped in its movement from time t 1 due to its blockage. The associated actual value 18 therefore no longer changes from the point in time t 1 and therefore remains the same.
- a deviation of an actual value, which has remained the same from a point in time t 1 , to the target value is determined and recorded as a second comparison value ⁇ 2 .
- the two comparison values differ from one another, with the first comparison value ⁇ 1 falling below the second comparison value ⁇ 2 .
- a deviation from the desired curve, which indicates a door spring fracture is detected.
- This deviation in the form of the comparison value ⁇ 1 can be distinguished from a blockage of the appliance door 6 according to the actual curve 2 on the one hand and from a normal target curve on the other hand.
- the period of time ⁇ t between t 2 and t 1 must be chosen to be sufficiently long, but not too long, in order to minimize the risk emanating from an appliance door 6 moving further.
- a suitable value for this period is preferably between 50 ms and 500 ms, in particular around 250 ms.
- the course of the actual curve within the period between t 2 and t 1 can be recorded at several different points in time.
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DE102021100347.4A DE102021100347A1 (de) | 2021-01-12 | 2021-01-12 | Haushaltsgerät, insbesondere Geschirrspülmaschine |
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EP22150400.4A Pending EP4026474A1 (fr) | 2021-01-12 | 2022-01-06 | Appareil électroménager, en particulier lave-vaisselle |
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP4368093A1 (fr) | 2022-11-11 | 2024-05-15 | Miele & Cie. KG | Procédé de fonctionnement d'un appareil de nettoyage, procédé d'entraînement d'un réseau neuronal et appareil de nettoyage |
WO2024104698A1 (fr) * | 2022-11-14 | 2024-05-23 | Miele & Cie. Kg | Lave-vaisselle, en particulier lave-vaisselle ménager |
BE1031039B1 (de) * | 2022-11-15 | 2024-06-10 | Miele & Cie | Geschirrspülmaschine, insbesondere Haushaltsgeschirrspülmaschine |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP4437922A1 (fr) * | 2023-03-30 | 2024-10-02 | Miele & Cie. KG | Appareil ménager |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2636355A1 (fr) * | 2012-03-07 | 2013-09-11 | Miele & Cie. KG | Appareil ménager doté d'une porte |
DE102017221258A1 (de) | 2017-11-28 | 2019-05-29 | BSH Hausgeräte GmbH | Haushaltsgeschirrspülmaschine und Verfahren zum Betreiben einer Haushaltsgeschirrspülmaschine |
DE102017221868A1 (de) * | 2017-12-05 | 2019-06-06 | BSH Hausgeräte GmbH | Haushaltsgerät mit Sensor zum Detektieren einer Türbewegung |
KR102046339B1 (ko) * | 2019-04-10 | 2019-11-20 | 김화열 | 식기세척기 도어장치 |
CN110887337A (zh) * | 2019-10-18 | 2020-03-17 | 珠海格力电器股份有限公司 | 一种基于角度和角速度的冰箱门开闭控制方法、计算机可读存储介质及冰箱 |
Family Cites Families (1)
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CN105063958B (zh) | 2015-08-12 | 2018-11-23 | 无锡飞翎电子有限公司 | 洗衣机及其电动门的防夹手控制方法 |
-
2021
- 2021-01-12 DE DE102021100347.4A patent/DE102021100347A1/de active Pending
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2022
- 2022-01-06 EP EP22150400.4A patent/EP4026474A1/fr active Pending
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2636355A1 (fr) * | 2012-03-07 | 2013-09-11 | Miele & Cie. KG | Appareil ménager doté d'une porte |
EP2636355B1 (fr) | 2012-03-07 | 2015-10-07 | Miele & Cie. KG | Appareil ménager doté d'une porte |
DE102017221258A1 (de) | 2017-11-28 | 2019-05-29 | BSH Hausgeräte GmbH | Haushaltsgeschirrspülmaschine und Verfahren zum Betreiben einer Haushaltsgeschirrspülmaschine |
DE102017221868A1 (de) * | 2017-12-05 | 2019-06-06 | BSH Hausgeräte GmbH | Haushaltsgerät mit Sensor zum Detektieren einer Türbewegung |
KR102046339B1 (ko) * | 2019-04-10 | 2019-11-20 | 김화열 | 식기세척기 도어장치 |
CN110887337A (zh) * | 2019-10-18 | 2020-03-17 | 珠海格力电器股份有限公司 | 一种基于角度和角速度的冰箱门开闭控制方法、计算机可读存储介质及冰箱 |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP4368093A1 (fr) | 2022-11-11 | 2024-05-15 | Miele & Cie. KG | Procédé de fonctionnement d'un appareil de nettoyage, procédé d'entraînement d'un réseau neuronal et appareil de nettoyage |
BE1031032B1 (de) * | 2022-11-11 | 2024-06-10 | Miele & Cie | Verfahren zum Betreiben eines Reinigungsgeräts, Verfahren zum Trainieren eines neuronalen Netzes und Reinigungsgerät |
WO2024104698A1 (fr) * | 2022-11-14 | 2024-05-23 | Miele & Cie. Kg | Lave-vaisselle, en particulier lave-vaisselle ménager |
BE1031039B1 (de) * | 2022-11-15 | 2024-06-10 | Miele & Cie | Geschirrspülmaschine, insbesondere Haushaltsgeschirrspülmaschine |
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