EP2742844B1 - Domestic appliance - Google Patents
Domestic appliance Download PDFInfo
- Publication number
- EP2742844B1 EP2742844B1 EP13196261.5A EP13196261A EP2742844B1 EP 2742844 B1 EP2742844 B1 EP 2742844B1 EP 13196261 A EP13196261 A EP 13196261A EP 2742844 B1 EP2742844 B1 EP 2742844B1
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- EP
- European Patent Office
- Prior art keywords
- door
- domestic appliance
- appliance according
- coil
- position signal
- 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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- 238000011156 evaluation Methods 0.000 claims description 9
- 230000005540 biological transmission Effects 0.000 description 7
- 238000005406 washing Methods 0.000 description 6
- 230000008859 change Effects 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
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- 238000002347 injection Methods 0.000 description 1
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- 229910052751 metal Inorganic materials 0.000 description 1
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- 230000009467 reduction Effects 0.000 description 1
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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
- A47L15/4259—Arrangements of locking or security/safety devices for doors, e.g. door latches, switch to stop operation when door is open
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L2401/00—Automatic detection in controlling methods of washing or rinsing machines for crockery or tableware, e.g. information provided by sensors entered into controlling devices
- A47L2401/26—Loading door status, e.g. door latch opened or closed state
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L2501/00—Output in controlling method of washing or rinsing machines for crockery or tableware, i.e. quantities or components controlled, or actions performed by the controlling device executing the controlling method
- A47L2501/22—Loading doors, e.g. door latches, inflatable door seals
Definitions
- the present invention relates to a household appliance, in particular a dishwasher.
- dishwashers having a device for automatically opening the door have been developed.
- Such a dishwasher is for example in the EP 2 394 561 A2 described.
- EP 2 497 854 A1 describes a locking arrangement for locking a door of a household appliance, wherein the locking arrangement comprises a force accumulator, which acts on a locking element with a closing force by means of which it is movable from an open position to a locking position, and a drive unit, with the aid of which the locking element from the locking position is movable against the closing force in the open position.
- WO 2013/167490 A2 describes a household appliance with a door, a drive, an actuator and a flexible element, which is adapted to a To transmit tensile force from the drive to the actuator for opening or unlocking the door.
- An object of the present invention is to provide an improved home appliance.
- the influence of interference signals on the detection of a door opening request of an operator should be at least reduced.
- a household appliance in particular a dishwasher, with a body, a door, an actuating element and a sensor device.
- the actuator is movable by applying a compressive force from the outside to the door in a first direction towards the body.
- the sensor device is configured to generate a position signal for indicating a position of the actuating element relative to the body in the first direction.
- the position signal is relative to a position the actuating element is compensated relative to the body in at least a second direction perpendicular to the first direction.
- “Compensated” is to be understood in the present case that the position of the actuating element relative to the body in the second direction without influence on the position signal. This can be achieved by a corresponding mechanical, electrical, electromechanical, magnetic and / or electromagnetic design of the sensor device.
- the position signal can be generated as follows:
- the at least one coil generates a time-varying magnetic field in which the encoder body moves.
- the encoder body is partially or completely made of metal, in particular aluminum. Due to the time-varying magnetic field eddy currents are induced in the encoder body, which in turn react on the coil, in particular determine their inductance. This reaction to the coil depends on the distance between the encoder body and the coil.
- the position signal is then generated in response to the feedback.
- Your door opening request expresses the operator person by applying a compressive force on the door in the first direction to the body from the outside, whereby the door in particular moves slightly, for example, while compressing a corresponding door seal.
- the actuator which is mechanically coupled to the door, then moves accordingly.
- the movement of the actuating element is detected by the sensor device, which then generates the compensated position signal. Due to the presently generated, compensated position signal remain disturbing influences, such as vibrations in the vertical direction of the dishwasher, without influence on the position signal. Thus, a reliable detection of a door opening request of an operator is possible.
- the sensor device may be configured to output a sequence of position signals. In other words, the position of the operating member in the first direction is continuously scanned.
- the sensor device is configured to generate the position signal in such a way that it is compensated for a position of the actuating element relative to the body in a third direction perpendicular to the first and second directions.
- the position of the actuating element in the third direction is thus without influence on the generated position signal.
- the above for compensation in the second direction is executed accordingly.
- the first direction may be a direction perpendicular to the door leaf
- the second direction may be the vertical direction of the domestic appliance
- the third direction may be the transverse direction of the domestic appliance.
- the first, second and third directions are present perpendicular to each other.
- the sensor device has two encoder bodies, which lie opposite each other in the second direction and between which at least one coil for generating a measurement signal for calculating the position signal can be arranged, which is movable in the first direction by means of the actuating element.
- At least one coil is to be understood here as meaning that only one coil is always arranged between the two encoder bodies at a particular time, but different coils may be arranged between the two transmitter bodies at different times.
- the at least one coil is mechanically coupled to the actuator such that movement of the actuator in the first direction results in corresponding movement of the coil in the first direction.
- the coil may be firmly connected to the body, so that vibrations of the body in the vertical direction also lead to a corresponding movement of the coil in the vertical direction.
- the at least one coil moves in the second direction, it approaches the one encoder body and moves away from the other encoder body accordingly.
- the reaction to the at least one coil thus remains constant, ie, whose inductance does not change.
- a position signal compensated in the second direction is generated.
- a carrier element which has a U-shaped section with two legs, each carrying one of the encoder body.
- the support member may be made for example as a plastic injection molded part.
- the encoder body are each firmly connected to the carrier element.
- the carrier element may have receptacles in which a respective encoder body is partially or completely received.
- the encoder bodies each more than completely cover the coil in the third direction.
- the encoder bodies may each have an extension in the third direction, which exceeds the extent of the coil in the third direction, for example by more than 10%, more than 20% and more preferably more than 50%.
- the position signal in the third direction is compensated.
- vibrations in the third direction change the position of the at least one coil in the third direction. Due to the more than complete coverage, the reaction to the coil, in particular their inductance, does not change.
- the sensor device thus provides a constant position signal in household appliances, which are manufactured with different tolerances with respect to the position of the actuating element in the second and / or third direction.
- the door opening request of the operator can thus be reliably detected in any home appliance.
- At least two coils are provided, which are arranged one behind the other in the first direction.
- the coils may form a differential choke arrangement with one another.
- the position of the at least one encoder body changes the impedance of the two coils.
- the coils can be arranged electrically in a series connection, which when operating with a high-frequency square-wave voltage is acted upon, so that between the choke coils high-frequency alternating voltage pulses can be tapped.
- the position signal is then generated in response to a difference between voltage strokes of successive pulses.
- a throttle arrangement is in the DE 10 2010 043 637 A1 described.
- the sensor device has an electronic circuit board, in which the at least one coil is integrated.
- the electronic circuit board can also have an evaluation unit for generating the position signal as a function of the measurement signal of the at least one coil.
- the at least one coil is designed as an air-core coil. This creates insensitivity to external magnetic fields. Interference can therefore be further reduced.
- the two encoder bodies are arranged on a carrier element, which is biased against the actuating element.
- a mechanical coupling between the two encoder bodies and the actuating element is achieved in the first direction, so that a movement of the actuating element (due to application of the pressure force from the outside to the door) leads to a corresponding movement of the carrier element and thus the two encoder body.
- a leg spring is provided for biasing, which acts on the carrier element and opposite to this laterally offset from the first direction. This results in a position for the leg spring, which allows easy access from above, especially for maintenance or repair purposes.
- a respective encoder body is positively connected, in particular by means of H synthverlessnessgens, with the carrier element. This results in a simple producible structure.
- the actuating element is arranged in front of the carrier element in the first direction. Furthermore, a pressure ring behind the support element arranged. The pressure ring is adapted to hold a residual path for the support element with the door closed. The residual path makes it possible that the application of the pressure force from the outside on the door to a - albeit minor - movement of the support element and thus the encoder body leads. The opening request can thus be detected.
- the actuating element is designed as a locking element of a door lock.
- the locking element from a locking position in which it engages positively in the door, adjustable against an acting in the first direction return spring in an unlocked position, in which it releases the door for opening the same and is positively secured against return by the return spring ,
- a lever may be provided which reverses the positive locking when closing the door, wherein actuated by the return spring, the locking element in the locking position and pulls the door in the closing direction.
- This type of door lock unlocking the door with a slight opening of the same and the locking of the door with a slight closing of the same goes hand in hand.
- This type of door lock can also be referred to as a "pull-lock".
- the sensor device has an evaluation unit which is set up to decide over time whether a door opening request of an operator is present, depending on an integral of the position signal. This measure makes the evaluation even less susceptible to interference, so that the opening request can be detected even safer.
- a drive and a control device are provided, which controls the drive for actuating the actuating element for unlocking, opening, closing and / or locking the door in dependence on the position signal. This can be accomplished in particular an automatic unlocking and opening the door. An automatic closing and locking of the door is possible.
- Fig. 1 shows a schematic side view of a household appliance in the form of a dishwasher 1.
- This has a washing container 2 for receiving items to be washed.
- a door 3 is pivotably connected to a body 4 forming the washing container 2 by means of a joint 5.
- the closed position and in dashed line the open position of the door 3 is illustrated in a solid line.
- the door 3 is formed handleless and may have a decorative panel on the outside.
- the dishwasher 1 further comprises a module 6 and a door lock 7, which are each arranged below an upper cover 11 of the body 4.
- the door lock 7 comprises an actuating element in the form of a locking element 12 (see FIG. 4 ), which is formed according to the embodiment in the form of a striker.
- a recess 13 in which the locking element 12 engages in the closed position of the door 3 and pulls them in the direction of the washing compartment 2 against a seal, not shown.
- the seal is arranged circumferentially around the opening of the washing compartment 2.
- FIG. 2 shows an enlarged view II FIG. 1 in partially transparent representation.
- the dishwasher 1 has a frame 14, which is arranged on the washing container 2 on the opening side.
- the door lock 7 is fixed to the frame 14.
- the module 6 is in turn releasably attached to the door lock 7. In the closed position, the door 3 extends perpendicular to the plane of the paper under the frame 14th
- the module 6 comprises a drive in the form of an electric motor 15.
- the module 6 further comprises a flexible, pliable element in the form of a rope conductor 16, in particular made of plastic.
- the electric motor 15 drives the rope ladder 16 via a three-stage reduction gear 17.
- the rope ladder 16 is positively engaged with teeth 21 of a gear 22 of the transmission 17.
- the rope ladder 16 has a free end 23 and is attached at its other end 24 to a transmission lever 25.
- the transmission lever 25 is about an axis 26 perpendicular to the plane E (see also FIG. 4 ), in which the locking element 12 is movable, pivotable.
- a transmission element in the form of a bridge 27 mounted about an axis 31 also perpendicular to the plane E pivotally.
- the bridge 27 points, as well as in FIG. 4 to recognize a bar shape.
- the bridge 27 has a pressure surface 32.
- the pressure surface 32 is adapted to abut against a rear end 33 (see FIG FIG. 4 ) of the locking element 12 to push this from its locking position (this is in FIG. 4 shown) in its unlocked position (to press in the direction of arrow 34).
- the module 6 also has a sensor device 35.
- the sensor device 35 is in the FIGS. 3 to 6 shown in more detail.
- the sensor device 35 is configured to generate a position signal for indicating a position of the locking element 12 (see FIG FIG. 4 ) in a first direction y relative to the body 4, which is compensated for a position of the actuating element 12 relative to the body 4 in a second direction z and a third direction x.
- the directions x, y and z are each perpendicular to each other.
- the coordinate system x, y, z is fixed relative to the body 4.
- the direction y points perpendicular to the plane of the door in its closed position (see FIG. 1 ).
- the direction z points in the vertical direction of the dishwasher 1.
- the direction x points in the transverse direction of the dishwasher 1.
- the directions x, y define the plane E.
- the sensor device 35 is intended to detect a door opening request of an operator, for which purpose it generates the position signal.
- Your opening request brings the operator person by applying a compressive force 36 (see FIG. 1 ) from the outside to the door 3 in its closed position to expression.
- the compressive force 36 results in compression of the mentioned seal so that the door 3 moves slightly in the direction y by moving it around the hinge 5 (see FIG FIG. 1 ) pivots.
- the locking element 12 has a hook 37.
- the hook 37 engages in the locking position of the locking element 12 in the recess 13 (see FIG. 1 ). Now moves the door 3, the hook 37 and thus the locking member 12 is moved in the direction y to the body 4. This movement is detected by the sensor device 35.
- the legs 43, 44 are for example each part of a U-shaped portion 55 of the support member 45.
- the U-shaped portion 55 forms - among other things, by means of its legs 43, 44 - the gap 46, which is open on three sides.
- the sensor device furthermore has an electronic circuit board 56, as in FIGS Figures 3 and 5 to recognize.
- the electronic board 56 comprises two coils 57, 61 arranged one behind the other, which can be designed as air coils.
- the coils 57, 61 are arranged one behind the other in the direction y. This is for example in FIG. 3 to recognize.
- the coils 57, 61 are integrated in the electronic board 56.
- the support member 45 has on the front side a contact surface 62, as in the FIGS. 4 and 5 shown.
- the contact surface 62 bears against the end 33 of the locking element 12.
- the support member 45 is biased by a leg spring 63 in the direction y against the end 33.
- the leg spring 63 is arranged in the plane E.
- the leg spring 63 is arranged in the direction x laterally adjacent to the support member 45 and thus easily accessible for maintenance or replacement purposes. If the locking element 12 now moves in the direction y toward the body, then the encoder bodies 41, 42 move via the coils 57, 61 due to the mechanical coupling by means of the contact surface 62 and the end 33.
- the electronic board 56 has an evaluation unit 66, for example in the form of a microprocessor, see FIG. 5 , which is adapted to inductance changes of the coils 57, 61 in dependence on their position relative to the encoder bodies 41, 42nd (in the present case also referred to as measuring signals) and to generate therefrom a position signal for indicating the position of the locking element 12 in the direction y.
- FIG. 7 shows by way of example a position signal S over time.
- the evaluation unit 66 may be configured to evaluate a pulse width 67, a pulse height 71 and / or a slope 72 of the position signal S.
- the evaluation unit 66 may be configured to decide over time whether a door opening request is present, depending on an integral of the position signal.
- FIG. 7 shows by way of example three mutually offset pulses, with only the middle corresponds to a Mosö Samuels disrupte.
- the left pulse corresponds only to unintentional contact with the door 3 of the dishwasher, while the very right impulse corresponds to an unintentional ramming of the door.
- a pressure ring 76 may be arranged in the direction y. Thereby, a residual path for the support member 45 is provided to the body available to recognize the door opening request.
- the pressure ring 76 is composed, for example, of two superposed O-rings (not shown).
- the locking element 12 can be adjusted from its locking position against acting in the direction y return spring 77 in its unlocked position. In the unlocked position, the door 3 is a little opened and released for another particular manual opening. Furthermore, the locking element 12 is positively secured in the unlocked position against a return by the return spring 77. To release the positive connection, a non-illustrated lever may be provided. After canceling the positive connection, the return spring 77 pulls the locking element 12 into the locking position and pulls the door 3 in the closing direction.
- a control unit 78 of the dishwasher 1 which is signal-connected with the sensor device 35 controls the dishwasher 1 (see FIG FIG. 1 ) to the electric motor 15, whereupon this pulls on the rope ladder 16 and thereby by means of the bridge 27, the locking element 12 from his in FIG. 4 shown locking position is actuated in its unlocked position.
- the sensor device 35 may also be configured to hold the bridge 27 in contact with the locking element 12 when the return spring 77 actuates the locking element 12 from the unlocking position to the locking position, thereby enabling smooth closing and locking.
- the sensor device 35 may be configured to detect a self-healing position of the locking element 12.
- the self-healing position corresponds to the locking position of the Verrieglungselements 12 with the difference that the door 3 is in the open position (however, the Verrieglungselement 12 is arranged in its rearmost position to the body 4 back).
- the control unit 78 then controls the electric motor 15 such that it moves the locking element 12 in its unlocked position and the door 3 can then be closed again as usual.
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Description
Die vorliegende Erfindung betrifft ein Haushaltsgerät, insbesondere eine Geschirrspülmaschine.The present invention relates to a household appliance, in particular a dishwasher.
Mit dem Entriegeln und Öffnen der Tür einer herkömmlichen Geschirrspülmaschine, beispielsweise einer Geschirrspülmaschine mit Aufreißschloss, ist ein gewisser Kraftaufwand seitens der Bedienerperson verbunden, was teilweise als unkomfortabel empfunden wird. Ferner hat es sich in der Vergangenheit im Hinblick auf eine vollständige Trocknung als vorteilhaft herausgestellt, die Tür einer Geschirrspülmaschine während des Trocknungsvorgangs teilweise zu öffnen. Weiterhin besteht vielfach der Wunsch nach grifflosen Gerätefronten.By unlocking and opening the door of a conventional dishwasher, such as a dishwasher with a pull-lock, a certain amount of force on the part of the operator is connected, which is sometimes perceived as uncomfortable. Further, in the past, in view of complete drying, it has been found advantageous to partially open the door of a dishwasher during the drying process. Furthermore, there is often the desire for handleless device fronts.
Entsprechend wurden in der jüngsten Vergangenheit Geschirrspülmaschinen mit einer Einrichtung zum automatischen Öffnen der Tür entwickelt. Eine solche Geschirrspülmaschine ist beispielsweise in der
Wie weiter aus der
Eine Aufgabe der vorliegenden Erfindung besteht darin, ein verbessertes Haushaltsgerät bereitzustellen. Dabei soll insbesondere der Einfluss von Störsignalen auf die Erfassung eines Türöffnungswunsches einer Bedienerperson zumindest reduziert werden.An object of the present invention is to provide an improved home appliance. In particular, the influence of interference signals on the detection of a door opening request of an operator should be at least reduced.
Demgemäß wird ein Haushaltsgerät, insbesondere eine Geschirrspülmaschine, mit einem Korpus, einer Tür, einem Betätigungselement und eine Sensoreinrichtung bereitgestellt. Das Betätigungselement ist mittels Aufbringens einer Druckkraft von außen auf die Tür in einer ersten Richtung zum Korpus hin bewegbar. Die Sensoreinrichtung ist dazu eingerichtet, ein Positionssignal zur Angabe einer Position des Betätigungselements relativ zum Korpus in der ersten Richtung zu erzeugen. Das Positionssignal ist bezüglich einer Position des Betätigungselements relativ zum Korpus in zumindest einer zweiten Richtung senkrecht zur ersten Richtung kompensiert. "Kompensiert" ist vorliegend dahingehend zu verstehen, dass die Position des Betätigungselements relativ zum Korpus in der zweiten Richtung ohne Einfluss auf das Positionssignal ist. Dies kann durch eine entsprechende mechanische, elektrische, elektromechanische, magnetische und/oder elektromagnetische Gestaltung der Sensoreinrichtung erreicht werden.Accordingly, a household appliance, in particular a dishwasher, with a body, a door, an actuating element and a sensor device is provided. The actuator is movable by applying a compressive force from the outside to the door in a first direction towards the body. The sensor device is configured to generate a position signal for indicating a position of the actuating element relative to the body in the first direction. The position signal is relative to a position the actuating element is compensated relative to the body in at least a second direction perpendicular to the first direction. "Compensated" is to be understood in the present case that the position of the actuating element relative to the body in the second direction without influence on the position signal. This can be achieved by a corresponding mechanical, electrical, electromechanical, magnetic and / or electromagnetic design of the sensor device.
Grundsätzlich ist eine Spule mit zwei Geberkörpern vorgesehen. Das Positionssignal kann insbesondere wie folgt erzeugt werden: Die wenigstens eine Spule erzeugt ein zeitlich veränderliches Magnetfeld, in welchem sich der Geberkörper bewegt. Der Geberkörper besteht teilweise oder vollständig aus Metall, insbesondere Aluminium. Aufgrund des zeitlich veränderlichen Magnetfelds werden in dem Geberkörper Wirbelströme induziert, welche wiederum auf die Spule rückwirken, insbesondere deren Induktivität bestimmen. Diese Rückwirkung auf die Spule hängt von dem Abstand zwischen Geberkörper und Spule ab. Das Positionssignal wird dann in Abhängigkeit von der Rückwirkung erzeugt.Basically, a coil with two encoder bodies is provided. In particular, the position signal can be generated as follows: The at least one coil generates a time-varying magnetic field in which the encoder body moves. The encoder body is partially or completely made of metal, in particular aluminum. Due to the time-varying magnetic field eddy currents are induced in the encoder body, which in turn react on the coil, in particular determine their inductance. This reaction to the coil depends on the distance between the encoder body and the coil. The position signal is then generated in response to the feedback.
Ihren Türöffnungswunsch bringt die Bedienerperson dadurch zum Ausdruck, dass sie von außen eine Druckkraft auf die Tür in der ersten Richtung zum Korpus hin aufbringt, wodurch sich die Tür insbesondere geringfügig bewegt, beispielsweise unter Komprimierung einer entsprechenden Türdichtung. Das Betätigungselement, welches mit der Tür mechanisch gekoppelt ist, bewegt sich dann entsprechend. Die Bewegung des Betätigungselements wird von der Sensoreinrichtung erfasst, die dann das kompensierte Positionssignal erzeugt. Aufgrund des vorliegend erzeugten, kompensierten Positionssignals bleiben Störeinflüsse, beispielsweise Erschütterungen in Hochrichtung der Geschirrspülmaschine, ohne Einfluss auf das Positionssignal. Somit ist eine zuverlässige Erkennung eines Türöffnungswunsches einer Bedienerperson möglich.Your door opening request expresses the operator person by applying a compressive force on the door in the first direction to the body from the outside, whereby the door in particular moves slightly, for example, while compressing a corresponding door seal. The actuator, which is mechanically coupled to the door, then moves accordingly. The movement of the actuating element is detected by the sensor device, which then generates the compensated position signal. Due to the presently generated, compensated position signal remain disturbing influences, such as vibrations in the vertical direction of the dishwasher, without influence on the position signal. Thus, a reliable detection of a door opening request of an operator is possible.
Die Sensoreinrichtung kann dazu eingerichtet sein, eine Abfolge von Positionssignalen auszugeben. Mit anderen Worten wird die Position des Betätigungselements in der ersten Richtung kontinuierlich abgetastet.The sensor device may be configured to output a sequence of position signals. In other words, the position of the operating member in the first direction is continuously scanned.
Gemäß einer Ausführungsform ist die Sensoreinrichtung dazu eingerichtet, das Positionssignal in der Weise zu erzeugen, dass es bezüglich einer Position des Betätigungselements relativ zum Korpus in einer dritten Richtung senkrecht zur ersten und zweiten Richtung kompensiert ist. Die Position des Betätigungselements in der dritten Richtung ist somit ohne Einfluss auf das erzeugte Positionssignal. Hier gilt das vorstehend zur Kompensation in der zweiten Richtung Ausgeführte entsprechend.According to one embodiment, the sensor device is configured to generate the position signal in such a way that it is compensated for a position of the actuating element relative to the body in a third direction perpendicular to the first and second directions. The position of the actuating element in the third direction is thus without influence on the generated position signal. Here, the above for compensation in the second direction is executed accordingly.
Beispielsweise kann es sich bei der ersten Richtung um eine Richtung senkrecht zum Türblatt, bei der zweiten Richtung um die Hochrichtung des Haushaltsgeräts und bei der dritten Richtung um die Querrichtung des Haushaltsgeräts handeln. Die erste, zweite und dritte Richtung stehen vorliegend senkrecht zueinander.For example, the first direction may be a direction perpendicular to the door leaf, the second direction may be the vertical direction of the domestic appliance, and the third direction may be the transverse direction of the domestic appliance. The first, second and third directions are present perpendicular to each other.
Ferner weist die Sensoreinrichtung zwei Geberkörper auf, welche sich in der zweiten Richtung gegenüberliegen und zwischen denen zumindest eine Spule zum Erzeugen eines Messsignals für ein Berechnen des Positionssignals anordbar ist, die mittels des Betätigungselements in der ersten Richtung bewegbar ist. "Zumindest eine Spule" ist hier so zu verstehen, dass zu einem jeweiligen Zeitpunkt immer nur eine Spule zwischen den beiden Geberkörpern angeordnet ist, jedoch zu unterschiedlichen Zeitpunkten unterschiedliche Spulen zwischen den beiden Geberkörpern angeordnet sein können. Die zumindest eine Spule ist mit dem Betätigungselement mechanisch derart gekoppelt, dass eine Bewegung des Betätigungselements in der ersten Richtung zu einer entsprechenden Bewegung der Spule in der ersten Richtung führt. Außerdem kann die Spule mit dem Korpus fest verbunden sein, so dass Erschütterungen des Korpus in der Hochrichtung auch zu einer entsprechenden Bewegung der Spule in der Hochrichtung führen. Bewegt sich die zumindest eine Spule in der zweiten Richtung, so nähert sie sich dem einen Geberkörper an und entfernt sich von dem anderen Geberkörper entsprechend. Die Rückwirkung auf die zumindest eine Spule bleibt somit konstant, d.h., deren Induktivität ändert sich nicht. Folglich wird ein in der zweiten Richtung kompensiertes Positionssignal erzeugt.Furthermore, the sensor device has two encoder bodies, which lie opposite each other in the second direction and between which at least one coil for generating a measurement signal for calculating the position signal can be arranged, which is movable in the first direction by means of the actuating element. "At least one coil" is to be understood here as meaning that only one coil is always arranged between the two encoder bodies at a particular time, but different coils may be arranged between the two transmitter bodies at different times. The at least one coil is mechanically coupled to the actuator such that movement of the actuator in the first direction results in corresponding movement of the coil in the first direction. In addition, the coil may be firmly connected to the body, so that vibrations of the body in the vertical direction also lead to a corresponding movement of the coil in the vertical direction. If the at least one coil moves in the second direction, it approaches the one encoder body and moves away from the other encoder body accordingly. The reaction to the at least one coil thus remains constant, ie, whose inductance does not change. As a result, a position signal compensated in the second direction is generated.
Gemäß einer weiteren Ausführungsform ist ein Trägerelement vorgesehen, welches einen U-förmigen Abschnitt mit zwei Schenkeln aufweist, die jeweils einen der Geberkörper tragen. Das Trägerelement kann beispielsweise als Kunststoffspritzgussteil gefertigt sein. Die Geberkörper sind mit dem Trägerelement jeweils fest verbunden. Das Trägerelement kann Aufnahmen aufweisen, in welchen ein jeweiliger Geberkörper teilweise oder vollständig aufgenommen ist.According to a further embodiment, a carrier element is provided, which has a U-shaped section with two legs, each carrying one of the encoder body. The support member may be made for example as a plastic injection molded part. The encoder body are each firmly connected to the carrier element. The carrier element may have receptacles in which a respective encoder body is partially or completely received.
Gemäß einer weiteren Ausführungsform überdecken die Geberkörper jeweils die Spule in der dritten Richtung mehr als vollständig. Beispielsweise können die Geberkörper jeweils eine Ausdehnung in der dritten Richtung aufweisen, welche die Ausdehnung der Spule in der dritten Richtung übersteigt, beispielsweise um mehr als 10 %, mehr als 20 % und weiter bevorzugt mehr als 50 %. Durch das mehr als vollständige Überdecken wird das Positionssignal in der dritten Richtung kompensiert. Erschütterungen in der dritten Richtung verändern zwar die Position der zumindest einen Spule in der dritten Richtung. Aufgrund der mehr als vollständigen Überdeckung verändert sich die Rückwirkung auf die Spule, insbesondere deren Induktivität, nicht.According to a further embodiment, the encoder bodies each more than completely cover the coil in the third direction. For example, the encoder bodies may each have an extension in the third direction, which exceeds the extent of the coil in the third direction, for example by more than 10%, more than 20% and more preferably more than 50%. By covering more than completely, the position signal in the third direction is compensated. Although vibrations in the third direction change the position of the at least one coil in the third direction. Due to the more than complete coverage, the reaction to the coil, in particular their inductance, does not change.
Es sei angemerkt, dass anstelle der Erschütterungen auch unterschiedliche Positionen des Betätigungselements in der zweiten und dritten Richtung kompensiert werden können, welche sich aufgrund von Fertigungstoleranzen ergeben. Die Sensoreinrichtung liefert somit bei Haushaltsgeräten, welche mit unterschiedlichen Toleranzen in Bezug auf die Position des Betätigungselements in der zweiten und/oder dritten Richtung gefertigt werden, ein konstantes Positionssignal. Der Türöffnungswunsch der Bedienerperson kann somit bei jedem Haushaltsgerät sicher erkannt werden.It should be noted that, instead of the vibrations, different positions of the actuating element in the second and third directions, which result from manufacturing tolerances, can also be compensated. The sensor device thus provides a constant position signal in household appliances, which are manufactured with different tolerances with respect to the position of the actuating element in the second and / or third direction. The door opening request of the operator can thus be reliably detected in any home appliance.
Gemäß einer weiteren Ausführungsform sind zumindest zwei Spulen vorgesehen, welche in der ersten Richtung hintereinander angeordnet sind. Die Spulen können eine Differentialdrosselanordnung miteinander bilden. Die Lage des zumindest einen Geberkörpers verändert die Impedanz der beiden Spulen. Die Spulen können elektrisch in einer Reihenschaltung angeordnet sein, welche beim Betrieb mit einer hochfrequenten Rechteckspannung beaufschlagt wird, so dass zwischen den Drosselspulen hochfrequente Wechselspannungsimpulse abgreifbar sind. Das Positionssignal wird dann in Abhängigkeit von einer Differenz zwischen Spannungshüben aufeinanderfolgender Impulse erzeugt. Eine derartige Drosselanordnung ist in der
Gemäß einer weiteren Ausführungsform weist die Sensoreinrichtung eine Elektronikplatine auf, in welche die zumindest eine Spule integriert ist. Dadurch wird ein einfacher Aufbau geschaffen, welcher sich auch einfach herstellen lässt. Die Elektronikplatine kann auch eine Auswerteeinheit zum Erzeugen des Positionssignals in Abhängigkeit von dem Messsignal der zumindest einen Spule aufweisen.According to a further embodiment, the sensor device has an electronic circuit board, in which the at least one coil is integrated. As a result, a simple structure is created, which can also be easily produced. The electronic circuit board can also have an evaluation unit for generating the position signal as a function of the measurement signal of the at least one coil.
Gemäß einer weiteren Ausführungsform ist die zumindest eine Spule als Luftspule ausgebildet. Dadurch wird eine Unempfindlichkeit gegenüber externen Magnetfeldern geschaffen. Störeinflüssen können also weiter reduziert werden.According to a further embodiment, the at least one coil is designed as an air-core coil. This creates insensitivity to external magnetic fields. Interference can therefore be further reduced.
Gemäß einer weiteren Ausführungsform sind die beiden Geberkörper auf einem Trägerelement angeordnet, welches gegen das Betätigungselement vorgespannt ist. Dadurch wird eine mechanische Kopplung zwischen den beiden Geberkörpern und dem Betätigungselement in der ersten Richtung erzielt, so dass eine Bewegung des Betätigungselements (aufgrund von Aufbringens der Druckkraft von außen auf die Tür) zu einer entsprechenden Bewegung des Trägerelements und damit der beiden Geberkörper führt.According to a further embodiment, the two encoder bodies are arranged on a carrier element, which is biased against the actuating element. Thereby, a mechanical coupling between the two encoder bodies and the actuating element is achieved in the first direction, so that a movement of the actuating element (due to application of the pressure force from the outside to the door) leads to a corresponding movement of the carrier element and thus the two encoder body.
Gemäß einer weiteren Ausführungsform ist für das Vorspannen eine Schenkelfeder vorgesehen, welche an dem Trägerelement angreift und gegenüber diesem seitlich versetzt zur ersten Richtung angeordnet ist. Dadurch ergibt sich eine Position für die Schenkelfeder, welche einen einfachen Zugriff von oben insbesondere zu Wartungs- oder Reparaturzwecken erlaubt.According to a further embodiment, a leg spring is provided for biasing, which acts on the carrier element and opposite to this laterally offset from the first direction. This results in a position for the leg spring, which allows easy access from above, especially for maintenance or repair purposes.
Gemäß einer weiteren Ausführungsform ist ein jeweiliger Geberkörper formschlüssig, insbesondere mittels Heißverprägens, mit dem Trägerelement verbunden. Dadurch ergibt sich ein einfach herstellbarer Aufbau.According to a further embodiment, a respective encoder body is positively connected, in particular by means of Heißverprägens, with the carrier element. This results in a simple producible structure.
Gemäß einer weiteren Ausführungsform ist das Betätigungselement in der ersten Richtung vor dem Trägerelement angeordnet. Ferner ist ein Druckring hinter dem Trägerelement angeordnet. Der Druckring ist dazu eingerichtet, bei geschlossener Türe einen Restweg für das Trägerelement vorzuhalten. Der Restweg ermöglicht es, dass das Aufbringen der Druckkraft von außen auf die Tür zu einer - wenn auch nur geringfügigen - Bewegung des Trägerelements und damit des Geberkörpers führt. Der Öffnungswunsch kann damit detektiert werden.According to a further embodiment, the actuating element is arranged in front of the carrier element in the first direction. Furthermore, a pressure ring behind the support element arranged. The pressure ring is adapted to hold a residual path for the support element with the door closed. The residual path makes it possible that the application of the pressure force from the outside on the door to a - albeit minor - movement of the support element and thus the encoder body leads. The opening request can thus be detected.
Gemäß einer weiteren Ausführungsform ist das Betätigungselement als Verriegelungselement eines Türschlosses ausgebildet. Bevorzugt ist das Verriegelungselement aus einer Verriegelungsstellung, in welcher es in die Tür formschlüssig eingreift, gegen eine in der ersten Richtung wirkende Rückstellfeder in eine Entriegelungsstellung verstellbar, in welche es die Türe für ein Öffnen derselben freigibt und gegen ein Rückstellen durch die Rückstellfeder formschlüssig gesichert ist. Ferner kann ein Hebel vorgesehen sein, welcher beim Schließen der Tür den Formschluss aufhebt, wobei durch die Rückstellfeder das Verriegelungselement in die Verriegelungsstellung betätigt und die Tür in die Schließrichtung zieht. Bei dieser Art von Türschloss geht das Entriegeln der Tür mit einem geringfügigen Öffnen derselben und das Verriegeln der Tür mit einem geringfügigen Schließen derselben einher. Diese Art von Türschloss kann auch als "Aufreißschloss" bezeichnet werden.According to a further embodiment, the actuating element is designed as a locking element of a door lock. Preferably, the locking element from a locking position in which it engages positively in the door, adjustable against an acting in the first direction return spring in an unlocked position, in which it releases the door for opening the same and is positively secured against return by the return spring , Further, a lever may be provided which reverses the positive locking when closing the door, wherein actuated by the return spring, the locking element in the locking position and pulls the door in the closing direction. In this type of door lock unlocking the door with a slight opening of the same and the locking of the door with a slight closing of the same goes hand in hand. This type of door lock can also be referred to as a "pull-lock".
Gemäß einer weiteren Ausführungsform weist die Sensoreinrichtung eine Auswerteeinheit auf, welche dazu eingerichtet ist, in Abhängigkeit von einem Integral des Positionssignals über die Zeit zu entscheiden, ob ein Türöffnungswunsch einer Bedienerperson vorliegt. Diese Maßnahme macht die Auswertung noch unempfindlicher gegenüber Störeinflüssen, so dass der Öffnungswunsch noch sicherer detektiert werden kann.According to a further embodiment, the sensor device has an evaluation unit which is set up to decide over time whether a door opening request of an operator is present, depending on an integral of the position signal. This measure makes the evaluation even less susceptible to interference, so that the opening request can be detected even safer.
Gemäß einer weiteren Ausführungsform sind ein Antrieb und eine Steuereinrichtung vorgesehen, welche den Antrieb zum Betätigen des Betätigungselements für ein Entriegeln, Öffnen, Schließen und/oder Verriegeln der Tür in Abhängigkeit von dem Positionssignal ansteuert. Dadurch kann insbesondere ein automatisches Entriegeln und Öffnen der Tür bewerkstelligt werden. Auch ein automatisches Schließen und Verriegeln der Tür ist möglich.According to a further embodiment, a drive and a control device are provided, which controls the drive for actuating the actuating element for unlocking, opening, closing and / or locking the door in dependence on the position signal. This can be accomplished in particular an automatic unlocking and opening the door. An automatic closing and locking of the door is possible.
Weitere vorteilhafte Ausgestaltungen und Aspekte der Erfindung sind Gegenstand der Unteransprüche sowie der im Folgenden beschriebenen Ausführungsbeispiele der Erfindung. Im Weiteren wird die Erfindung anhand von bevorzugten Ausführungsformen unter Bezugnahme auf die beigelegten Figuren näher erläutert.Further advantageous embodiments and aspects of the invention are the subject of the dependent claims and the embodiments of the invention described below. Furthermore, the invention will be explained in more detail by means of preferred embodiments with reference to the attached figures.
Es zeigt dabei:
- Fig. 1:
- in einer schematischen Seitenansicht eine Geschirrspülmaschine gemäß einer Ausführungsform;
- Fig. 2:
- eine vergrößerte Ansicht II aus
Fig. 1 in teilweise durchsichtiger Darstellung; - Fig. 3:
- einige der Komponenten aus
Fig. 2 in mehr Detail; - Fig. 4:
- in einer perspektivischen Ansicht von schräg oben verschiedene Komponenten aus
Fig. 2 ; - Fig. 5:
- eine perspektivische Ansicht V aus
Fig. 4 samt einer Elektronikplatine; - Fig. 6:
- einen Schnitt VI-VI aus
Fig. 5 ; und - Fig. 7:
- ein Messsignal über die Zeit.
- Fig. 1:
- in a schematic side view of a dishwasher according to an embodiment;
- Fig. 2:
- an enlarged view II
Fig. 1 in partially transparent representation; - 3:
- out some of the components
Fig. 2 in more detail; - 4:
- in a perspective view obliquely from above different components
Fig. 2 ; - Fig. 5:
- a perspective view V from
Fig. 4 including an electronic board; - Fig. 6:
- a section VI-VI
Fig. 5 ; and - Fig. 7:
- a measuring signal over time.
In den Figuren sind gleiche oder funktionsgleiche Elemente mit denselben Bezugszeichen versehen worden, soweit nichts anderes angegeben ist.In the figures, the same or functionally identical elements have been given the same reference numerals, unless stated otherwise.
Das Türschloss 7 umfasst ein Betätigungselement in Form eines Verriegelungselements 12 (siehe
Wie in
Nachfolgend wird der Aufbau des Moduls 6 näher anhand von
Das Modul 6 weist weiterhin eine Sensoreinrichtung 35 auf. Die Sensoreinrichtung 35 ist in den
Die Sensoreinrichtung 35 soll einen Türöffnungswunsch einer Bedienerperson erkennen, wozu sie das Positionssignal erzeugt. Ihren Öffnungswunsch bringt die Bedienerperson durch Aufbringen einer Druckkraft 36 (siehe
Um das kompensierte Positionssignal zu erzeugen, kann die Sensoreinrichtung 35 den nachfolgenden Aufbau aufweisen:
Die Sensoreinrichtung 35 umfasst zwei Geberkörper 41, 42, siehe . Der untere Geberkörper 42 ist mit einer gestrichelten Bezugszeichenlinie versehen, weil verdeckt.Figur 4 41, 42 sind gemäß dem Ausführungsbeispiel jeweils als quadratische Aluminiumplättchen ausgebildet. Diese erstrecken sich mit ihrer Haupterstreckungsebene jeweils parallel zur Ebene E. Ferner liegen sich dieDie Geberkörper 41, 42 in der Richtung Z gegenüber.Geberkörper 41, 42 können jeweils anDie Geberkörper einem Schenkel 43 bzw. 44 eines Trägerelements 45der Sensoreinrichtung 35 formschlüssig befestigt sein. 43, 44 bilden einen Spalt 46 miteinander. An derDie Schenkel von dem Spalt 46 abgewandten Seite können die 43, 44 jeweils inSchenkel den Figuren 5 und6 gezeigte Aussparungen 47 bzw. 51 aufweisen, in denen jeweilsein Geberkörper 41 bzw. 42 aufgenommen ist. 41, 42 können eine mittige Öffnung 52 (nur fürDie Geberkörper den Geberkörper 41 in gezeigt) aufweisen, mit welcher sie auf einen Zapfen 53 bzw. 54 aufgesteckt werden. Nach einem Heißumformen der Zapfen 53, 54 sind dieFigur 4 41, 42 formschlüssig inGeberkörper 47, 51 gesichert.den Aussparungen
- The
sensor device 35 comprises two 41, 42, seeencoder bodies FIG. 4 , Thelower encoder body 42 is provided with a dashed reference line because hidden. The 41, 42 are each formed according to the embodiment as a square aluminum plate. These extend with their main extension plane each parallel to the plane E. Further, theencoder body 41, 42 are opposite in the direction Z. Theencoder body 41, 42 can each be fastened in a form-fitting manner on aencoder bodies 43 or 44 of aleg carrier element 45 of thesensor device 35. The 43, 44 form alegs gap 46 with each other. At the side facing away from thegap 46, the 43, 44 each in thelegs Figures 5 and6 have 47 and 51 shown, in each of which arecesses 41 and 42 is received. Thesensor body 41, 42 may have a central opening 52 (only for theencoder bodies encoder body 41 in FIGFIG. 4 shown), with which they are plugged onto a 53 and 54, respectively. After a hot forming of thepin 53, 54, thepins 41, 42 are positively secured in theencoder body 47, 51.recesses
Die Schenkel 43, 44 sind beispielsweise jeweils Teil eines U-förmigen Abschnitts 55 des Trägerelements 45. Der U-förmige Abschnitt 55 bildet - unter anderem mittels seiner Schenkel 43, 44 - den Spalt 46, der an drei Seiten offen ausgebildet ist.The
Die Sensoreinrichtung weist weiterhin eine Elektronikplatine 56 auf, wie in den
Das Trägerelement 45 weist vorderseitig eine Kontaktfläche 62 auf, wie in den
Die Elektronikplatine 56 weist eine Auswerteeinheit 66, beispielsweise in Form eines Mikroprozessors, siehe
Kommt es nun zu einer unbeabsichtigten Erschütterung der Geschirrspülmaschine 1, beispielsweise durch Abstellen eines schweren Gegenstandes auf der darüber angeordneten Küchenarbeitsplatte, so kann dies auch zu einer Bewegung des Trägerelements 45 und damit der Geberkörper 41, 42 in der Richtung z gegenüber den Spulen 57, 61 führen. Dabei bewegt sich die entsprechende der beiden Spulen 57, 61 näher an einen der Geberkörper 41, 42 heran, während sie sich von dem anderen weiter beabstandet. Im Ergebnis ergibt sich dadurch aber keine Induktivitätsänderung an der entsprechenden Spule 57, 61. Das Positionssignal ist damit kompensiert gegenüber der Richtung z. Ferner können die Geberkörper 41, 42 mit einer Ausdehnung 73 vorgesehen sein (siehe
In der Richtung y kann hinter dem der Kontaktfläche 62 gegenüberliegenden Ende 75 (siehe
Das Verriegelungselement 12 lässt sich aus seiner Verriegelungsstellung gegen eine in der Richtung y wirkende Rückstellfeder 77 in seine Entriegelungsstellung verstellen. In der Entriegelungsstellung ist die Tür 3 ein etwas geöffnet und für ein weiteres insbesondere manuelles Öffnen freigegeben. Weiterhin ist das Verriegelungselement 12 in der Entriegelungsstellung gegen ein Rückstellen durch die Rückstellfeder 77 formschlüssig gesichert ist. Zum Aufheben des Formschlusses kann ein nicht näher dargestellter Hebel vorgesehen sein. Nach Aufheben des Formschlusses zieht die Rückstellfeder 77 das Verriegelungselement 12 in die Verriegelungsstellung und zieht die Tür 3 in die Schließrichtung.The locking
Sobald die Auswerteeinheit 66 einen Türöffnungswunsch erkennt, steuert eine mit der Sensoreinrichtung 35 signaltechnisch verbundene Steuereinheit 78 der Geschirrspülmaschine 1 (siehe
Ferner kann die Sensoreinrichtung 35 dazu eingerichtet sein, eine Selbstheilungsstellung des Verriegelungselements 12 zu erkennen. Die Selbstheilungsstellung entspricht der Verriegelungsstellung des Verrieglungselements 12 mit dem Unterschied, dass sich die Tür 3 in der Offenstellung befindet (gleichwohl ist das Verrieglungselement 12 in seiner hintersten Position zum Korpus 4 hin angeordnet). Die Steuereinheit 78 steuert dann den Elektromotor 15 derart an, dass er das Verriegelungselement 12 in dessen Entriegelungsstellung verfährt und die Tür 3 sodann wieder wie üblich geschlossen werden kann.Furthermore, the
Obwohl die Erfindung vorliegend anhand von Ausführungsbeispielen beschrieben wurde, ist sie vielfältig modifizierbar.Although the invention has been described herein with reference to embodiments, it is variously modifiable.
- 11
- Geschirrspülmaschinedishwasher
- 22
- Behältercontainer
- 33
- Türdoor
- 44
- Korpuscorpus
- 55
- Gelenkjoint
- 66
- Modulmodule
- 77
- TürschlossLocks
- 1111
- Abdeckungcover
- 1212
- Verriegelungselementlocking element
- 1313
- Aussparungrecess
- 1414
- Rahmenframe
- 1515
- Elektromotorelectric motor
- 1616
- StrickleiterKnitters
- 1717
- Getriebetransmission
- 2121
- Zahntooth
- 2222
- Zahnradgear
- 2323
- EndeThe End
- 2424
- EndeThe End
- 2525
- Übertragungshebeltransmission lever
- 2626
- Achseaxis
- 2727
- Brückebridge
- 3131
- Achseaxis
- 3232
- Druckflächeprint area
- 3333
- EndeThe End
- 3434
- Pfeilarrow
- 3535
- Sensoreinrichtungsensor device
- 3636
- Druckkraftthrust
- 3737
- Hakenhook
- 4141
- Geberkörperdonor body
- 4242
- Geberkörperdonor body
- 4343
- Schenkelleg
- 4444
- Schenkelleg
- 4545
- Trägerelementsupport element
- 4646
- Spaltgap
- 4747
- Aussparungrecess
- 5151
- Aussparungrecess
- 5252
- Öffnungopening
- 5353
- Zapfenspigot
- 5454
- Zapfenspigot
- 5555
- Abschnittsection
- 5656
- Elektroplatineelectric board
- 5757
- SpuleKitchen sink
- 6161
- SpuleKitchen sink
- 6262
- Kontaktflächecontact area
- 6363
- SchenkelfederLeg spring
- 6666
- Auswerteeinheitevaluation
- 6767
- Impulsbreitepulse width
- 7171
- Impulshöhepulse height
- 7272
- Impulsflankepulse edge
- 7373
- Ausdehnungexpansion
- 7474
- Ausdehnungexpansion
- 7575
- EndeThe End
- 7676
- Druckringpressure ring
- 7777
- Federfeather
- 7878
- Steuereinheitcontrol unit
- SS
- Positionssignalposition signal
- tt
- ZeitTime
Claims (14)
- Domestic appliance (1), in particular dishwasher, having a body (4), a door (3), an actuation element (12), which can be moved in a first direction (y) toward the body (4) by applying a compressive force (36) from the outside onto the door (3), and a sensor facility (35), which is designed to generate a position signal (S) for specifying a position of the actuation element (12) relative to the body (4) in the first direction (y), said position signal, in respect of a position of the actuation element (12) relative to the body (4), being compensated in at least one second direction (z) at right angles to the first direction (y), characterised in that the sensor facility (35) has two sensor elements (41, 42), which oppose one another in the second direction (z) and between which is arranged at least one coil (57, 61) for generating a measuring signal for determining the position signal (S), which can be moved in the first direction (y) by means of the actuation element (12).
- Domestic appliance according to claim 1, characterised in that the sensor facility (35) is designed to generate the position signal (S) in a manner such that in respect of a position of the actuation element (12) relative to the body (4) it is compensated in a third direction (x) at right angles to the first and second direction (y, z).
- Domestic appliance according to claim 1 or 2, characterised by a support element (45), which has a U-shaped section (55) with two limbs (43, 44), which each support one of the sensor elements (41, 42).
- Domestic appliance according to one of claims 1 to 3, characterised in that the sensor elements (41, 42) each more than completely cover the at least one coil (57, 61) in the third direction (x).
- Domestic appliance according to one of claims 1 to 4, characterised in that at least two coils (57, 61) are provided, which are arranged one behind the other in the first direction (y).
- Domestic appliance according to one of claims 1 to 5, characterised in that the sensor facility (35) has an electronic circuit board (56), in which the at least one coil (57, 61) is integrated.
- Domestic appliance according to one of claims 1 to 6, characterised in that the at least one coil (57, 61) is embodied as an air-core coil.
- Domestic appliance according to one of claims 3 to 7, characterised in that the two sensor elements (41, 42) are arranged on the support element (45), which is pretensioned against the actuation element (12).
- Domestic appliance according to claim 8, characterised in that a limb spring (63) which engages with the support element (45) and is arranged opposite this and laterally offset in relation to the first direction (y) is provided for the pretensioning.
- Domestic appliance according to one of claims 3 to 9, characterised in that a respective sensor element (41, 42) is positively connected to the support element (45), in particular using hot stamping.
- Domestic appliance according to one of claims 3 to 10, characterised in that the actuation element (12) is arranged in the first direction (y) in front of the support element (45) and a pressure ring (76) is arranged behind the support element (45), wherein the pressure ring (76) is designed to provide a residual distance for the support element (45) when the doors (3) are closed.
- Domestic appliance according to one of claims 1 to 11, characterised in that the actuation element (12) is embodied as a locking element of a door lock (7), wherein the locking element (12) can preferably be moved from a locking position, in which it positively engages in the door (3), against a return spring (77) which operates in the first direction (y) into an unlocking position, in which it releases the door (3) for opening and is positively secured against a reset by the return spring (77).
- Domestic appliance according to one of claims 1 to 12, characterised in that the sensor facility (35) has an evaluation unit (66), which is designed to decide over the time (t) as a function of an integral of the position signal (S) whether an operator wishes to open the door.
- Domestic appliance according to one of claims 1 to 13, characterised by a drive (15) and a control facility (78), which is designed to actuate the drive (15) in order to actuate the actuation element (12) for unlocking, opening, closing and/or locking the door (3) as a function of the position signal (S).
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102012223219.2A DE102012223219A1 (en) | 2012-12-14 | 2012-12-14 | household appliance |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2742844A1 EP2742844A1 (en) | 2014-06-18 |
EP2742844B1 true EP2742844B1 (en) | 2016-08-24 |
Family
ID=49726622
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP13196261.5A Active EP2742844B1 (en) | 2012-12-14 | 2013-12-09 | Domestic appliance |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP2742844B1 (en) |
DE (1) | DE102012223219A1 (en) |
PL (1) | PL2742844T3 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104720717B (en) * | 2014-09-03 | 2017-10-20 | 佛山市顺德区美的洗涤电器制造有限公司 | Dish washing machine door lock construction |
DE102015207313A1 (en) | 2015-04-22 | 2016-10-27 | BSH Hausgeräte GmbH | Domestic refrigerating appliance and method for operating a household refrigerating appliance |
DE102016205367A1 (en) | 2016-03-31 | 2017-10-05 | Meiko Maschinenbau Gmbh & Co. Kg | Cleaning device and method for cleaning items to be cleaned |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ES2333608T3 (en) * | 2006-12-19 | 2010-02-24 | Bonferraro S.P.A. | EMPOTED APPLIANCE APPLIANCE PROVIDED WITH A DECORATIVE PANEL APPLIED TO THE DOOR. |
EP2394559B1 (en) | 2010-05-12 | 2013-07-31 | Miele & Cie. KG | Washing machine, in particular domestic dishwasher, with an automatically opening door |
DE102010037397A1 (en) * | 2010-09-08 | 2012-03-08 | Miele & Cie. Kg | Domestic appliance, in particular handle-less dishwasher |
DE102010043637A1 (en) | 2010-11-09 | 2012-05-10 | Ebe Elektro-Bau-Elemente Gmbh | encoder |
DE102011007538A1 (en) * | 2011-03-09 | 2012-09-13 | BSH Bosch und Siemens Hausgeräte GmbH | Locking arrangement for locking a door of a household appliance and household appliance |
DE102012207836A1 (en) * | 2012-05-10 | 2013-11-14 | BSH Bosch und Siemens Hausgeräte GmbH | household appliance |
-
2012
- 2012-12-14 DE DE102012223219.2A patent/DE102012223219A1/en not_active Withdrawn
-
2013
- 2013-12-09 PL PL13196261T patent/PL2742844T3/en unknown
- 2013-12-09 EP EP13196261.5A patent/EP2742844B1/en active Active
Also Published As
Publication number | Publication date |
---|---|
DE102012223219A1 (en) | 2014-06-18 |
PL2742844T3 (en) | 2017-01-31 |
EP2742844A1 (en) | 2014-06-18 |
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