EP2508666A1 - Washing machine with a tub and a detecting device - Google Patents

Washing machine with a tub and a detecting device Download PDF

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Publication number
EP2508666A1
EP2508666A1 EP11401056A EP11401056A EP2508666A1 EP 2508666 A1 EP2508666 A1 EP 2508666A1 EP 11401056 A EP11401056 A EP 11401056A EP 11401056 A EP11401056 A EP 11401056A EP 2508666 A1 EP2508666 A1 EP 2508666A1
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EP
European Patent Office
Prior art keywords
magnetic field
washing machine
housing
tub
securing means
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.)
Granted
Application number
EP11401056A
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German (de)
French (fr)
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EP2508666B1 (en
Inventor
Waldemar Kaftan
Wilhelm Sebeikat
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Miele und Cie KG
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Miele und Cie KG
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Publication date
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Priority to EP11401056.4A priority Critical patent/EP2508666B1/en
Priority to ES11401056.4T priority patent/ES2467935T3/en
Publication of EP2508666A1 publication Critical patent/EP2508666A1/en
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    • 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 
    • D06F39/001—Arrangements for transporting, moving, or setting washing machines; Protective arrangements for use during transport
    • 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
    • D06F34/00—Details of control systems for washing machines, washer-dryers or laundry dryers
    • D06F34/14—Arrangements for detecting or measuring specific parameters
    • D06F34/16—Imbalance

Definitions

  • the invention relates to a washing machine with a housing, with a tub arranged so as to be movable in the housing with a rotatably mounted drum with an at least approximately horizontal axis of rotation, which is driven by a motor and a detection device for detecting the position and / or position of the tub in the housing comprising a magnetic field sensor substantially fixedly associated with the housing and having a corresponding magnet mounted in a holding means on the tub, adapted to sense the flux density and the direction of the magnetic field emanating from the magnet; wherein the tub can be fixed by means of at least one transport securing means in the housing.
  • Known drum washing machines have a tub suspended in the housing suspended in the tub, in which a horizontally rotatable drum is mounted.
  • the tub is due to the laundry or the imbalance in vibration, the best intercepted due to the resilient suspension and additional damping or not transferred to the housing or the floor.
  • the swing of the tub must be monitored so that at the risk of excessive vibration, the washing motion or the spin cycle can be stopped so that no damage caused by a collision of the tub with the housing or other component.
  • the laundry weight or an imbalance can be determined on the basis of the vibration behavior, so that compensatory measures, such as a redistribution of the laundry, can be made.
  • a washing machine which has a detection device for detecting the position and / or the position of the tub in the housing.
  • the detection device comprises a magnet attached to the movable tub, which is in operative connection with a sensor fixed relative to the housing.
  • the sensor is set up to determine the direction of the magnetic field in addition to the flux density of the magnetic field.
  • the sensor is not coupled with the magnet.
  • a washing machine with a swingable tub and a rotating drum is known in which the tub can be fixed by means of a transport lock within the housing for transport to prevent deflections of the tub.
  • the means for securing transport are provided with sensors which cooperate with the control device to prevent a spin operation with inserted transport lock.
  • the means of transport used are provided with the corresponding sensors. In rare, unusual falcons, it is possible that due to shocks during transport, the sensors on the shock-absorbing securing means will be damaged and cause misdetection in the subsequent operation.
  • the invention is therefore based on the object to provide a drum washing machine with a reliable and safe sensor for the transport security means.
  • the achievable with the invention advantages are that a very accurate detection of the position and position of the tub is provided so that purposefully adapted measures to limit the deflections of the tub can be initiated. Furthermore, with the same sensor arrangement, the presence of an inserted transport securing means is detected and supplied as a result of the control device, which can then issue a warning message to the user and / or interrupt the further operation of an activated washing program.
  • the magnet and the magnetic field sensor are arranged in the region of the transport securing means in order to cause an inserted or activated transport securing means to influence the magnetic field.
  • the magnetic field influenced by the transport securing means is detected by the magnetic field sensor on the basis of the changed course of the magnetic field lines and supplied as a signal or date to the control device, which accordingly does not perform a spin cycle or wash cycle when it has started. Furthermore, other security functions can be performed.
  • the transport securing means comprises magnetically conductive or magnetic material. This ensures that a reliable influence of the magnetic field takes place in the detection range of the sensor when the transport securing means is used or activated.
  • the transport securing means consists of means of one of at least one rod which is fixed in the secured state in receiving devices on a front housing part and in other receiving devices on the rear wall of the machine housing, and wherein the rod in the central region with the tub by means of tabs positively connected.
  • Such transport rods are easy to handle and provide a very durable reliable fixation of the tub on or in the housing.
  • the magnetic field sensor is arranged at a distance in the range of 1 to 8 cm relative to the positioning region of the transport securing means. This ensures that the transport securing means in the inserted state causes a clearly detectable change in the magnetic field or the magnetic field lines.
  • the senor is attached to a fron solution within the housing. There is enough free space for the magnets attached to the tub, so that in normal operation no collisions with other components within the washing machine occur.
  • the washing machine comprises a control device, which is in operative connection with the magnetic field sensor and can perform an activated program for laundry treatment on the basis of the states.
  • the control device is in this case configured to perform a safety function when an activated transport securing means is detected or detected by the magnetic field sensor.
  • a safety function is advantageously a warning message to the user in the form of an acoustic or visual output.
  • a control device such a function can be provided simply and reliably by programming.
  • the transport securing means is adapted to change the course and / or the direction of the field lines in the inserted state, wherein the magnetic field sensor is adapted to a three-dimensional changes in location of the corresponding magnet based on the Feldinienverlaufs and due to the inserted transport securing means Capture change in field lines.
  • This can be detected or detected by unbalanced movements of the tub during operation of the washing machine and the presence of the transport securing means used with a single sensor arrangement. Additional sensors or other measures are then no longer necessary.
  • the magnetic field sensor is designed to distinguish the three-dimensional changes in the field lines occurring during operation from the change in the field lines caused by the inserted transport securing means and to supply them to the control device as a corresponding signal or datum.
  • the direction and position information refer to the operational installation position of the washing machine.
  • the Fig. 1 shows in a sketched view of a washing machine 1, which comprises a housing 2 with a tub 4 mounted therein swingably movable.
  • the tub 4 is suspended by means of spring elements 11 swingably in the housing 2 by means of springs 11 on a housing part in the upper region and damped by means of damper 12 which are supported on the housing bottom 13, with respect to its movement.
  • a rotatable drum 3 is arranged with an at least approximately horizontal axis of rotation 6.
  • the drum 3 is drivable with a motor 5, so that the rotational movement is provided during washing or spinning.
  • the washing machine 1 further comprises a detection device 7 for detecting the position and / or position and / or the movement of the tub 4 relative to the housing 2.
  • a holding means 14 is adapted to hold the magnet 9 to the magnet in preferred position relative to stationarily attached to the housing 2 mounted magnetic field sensor 8.
  • the washing machine 1 has a front-side loading opening, but the detecting device 7 can be used in the same way for a coat-loadable washing machine, such as a top loader.
  • the magnet 9 is in this case arranged in the effective range of the sensor 8, that a so-called three-dimensional detection of the magnet position is possible, wherein the sensor 8 is designed for such a three-dimensional detection.
  • the microcomputer of the control device 22 is used to which the signals of the sensor 8 are supplied.
  • the transformation of the sensor signals into data which can be utilized by the controller 22 may alternatively also be effected by means of a separate electronic circuit or a separate electronic circuit Microprocessor circuit are performed, which is preferably formed with the sensor 8 as a smart, compact unit.
  • Fig. 1 It can also be seen that the tub 4 is secured by means of transport rods 10 formed transport securing means against shocks.
  • the rods 10 are in the secured state in receiving means 15a in the front housing part 15 and further receiving means 16a in the rear wall 16.
  • the rod 10 In the front region of the middle section, the rod 10 is connected to the front flap 17a, in the rear region of the section extending inside the housing 2, the rod 10 is positively and / or non-positively connected to the rear flap 17b.
  • the tub 4 is provided in the lower lateral region, each with a cross member 18 on each side, which extends in the longitudinal direction of the tub 4.
  • the tabs or eyes 17a, 17b are formed or shaped for the transport bar 10 and the holding means 12a for the shock absorber 12th
  • FIG. 2 outlined the course of the magnetic field lines 19 with the transport rod 10 removed.
  • the magnetic field lines 19 extend arcuately starting from a first magnetic pole 20a and reach the second magnetic pole 20b.
  • the magnetic field sensor 8 is arranged in the effective range of these field lines 19 such that they are sensed and movements of the tub 4 relative to the stationary sensor 8 change the position of the field lines 19.
  • more and fewer field lines 19 sometimes hit the sensor 8, whereby this intensity is correspondingly sensed and fed to the control device 22 as a position signal.
  • Fig. 3 shows the situation with inserted transport rod 10.
  • the field lines 19 are deflected by the transport rod 10 something, whereby the arcuate course is slightly distorted.
  • This change causes the field lines 19 to impinge on the sensor 8 in different intensity or direction, and is sensed accordingly.
  • fewer field lines 19 impinge on the sensor 8 which thus has a reduced intensity compared with the situation in FIG Fig. 2 sensed.
  • This is then interpreted by the control device 22 accordingly so that a transport rod 10 is inserted.
  • the transport bar 10 is made in this example of a magnetically conductive steel.
  • the sensor 8 and the magnet 9 is slightly spaced from the traverse 18 and the tub 4 attached, since these components in This example are made of steel and an excessive influence of the magnetic field 19 is avoided.
  • a so-called Hall sensor is used in a preferred embodiment, which offers a 3-dimensinal detection of the field lines 19.
  • the sensor 8 also contains a circuit arrangement for signal or data generation in order to provide information that can be used for the control device.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Main Body Construction Of Washing Machines And Laundry Dryers (AREA)
  • Control Of Washing Machine And Dryer (AREA)

Abstract

The washing machine (1) has a housing (2), a bucking container (4) with a drum (3) having horizontal rotating axis (6), where the bucking container is movably arranged in the housing and rotating axis is driven by an engine (5). A magnet (9) and a magnetic field sensor (8) are arranged in the area of a transport safety unit (10) such that an inserted or activated transport safety unit influences the magnetic field to operate the detection of the affected magnetic field with the magnetic field sensor.

Description

Die Erfindung betrifft eine Waschmaschine mit einem Gehäuse, mit einem in dem Gehäuse schwingbeweglich angeordneten Laugenbehälter mit einer darin drehbar angeordneten Trommel mit einer wenigstens annähernd horizontalen Drehachse, die mittels eines Motors antreibbar ist und einer Erfassungseinrichtung zur Erfassung der Position und/oder Lage des Laugenbehälters in dem Gehäuse, die einen Magnetfeldsensor, der im wesentlichen fest dem Gehäuse zugeordnet ist und mit einem korrespondierenden Magneten, der in einem Haltemittel am Laugenbehälter angebracht ist, umfasst, der dazu eingerichtet ist, die Flussdichte und die Richtung des vom Magneten ausgehenden Magnetfeldes zu erfassen, wobei der Laugenbehälter, mittels zumindest einem Transportsicherungsmittel im Gehäuse fixiert werden kann.The invention relates to a washing machine with a housing, with a tub arranged so as to be movable in the housing with a rotatably mounted drum with an at least approximately horizontal axis of rotation, which is driven by a motor and a detection device for detecting the position and / or position of the tub in the housing comprising a magnetic field sensor substantially fixedly associated with the housing and having a corresponding magnet mounted in a holding means on the tub, adapted to sense the flux density and the direction of the magnetic field emanating from the magnet; wherein the tub can be fixed by means of at least one transport securing means in the housing.

Bekannte Trommelwaschmaschinen besitzen einen im Gehäuse schwingbeweglich aufgehängten Laugenbehälter, in dem eine horizontal drehbare Trommel gelagert ist. Beim Betrieb der Waschmaschine gerät der Laugenbehälter aufgrund des Wäschefalls oder der Unwuchten in Schwingung, die aufgrund der federnden Aufhängung und einer zusätzlichen Dämpfung möglichst gut abgefangen bzw. nicht auf das Gehäuse oder den Boden übertragen werden. Das Schwingen des Laugenbehälters muss jedoch überwacht werden, damit bei der Gefahr von zu großen Schwingungen die Waschbewegung oder der Schleudergang gestoppt werden kann, damit keine Schäden durch eine Kollision des Laugenbehälters mit dem Gehäuse oder einem anderen Bauteil entstehen. Ferner kann anhand des Schwingverhaltens das Wäschegewicht oder eine Unwucht ermittelt werden, so dass ausgleichende Maßnahmen, wie eine Neuverteilung der Wäsche, vorgenommen werden können.Known drum washing machines have a tub suspended in the housing suspended in the tub, in which a horizontally rotatable drum is mounted. During operation of the washing machine, the tub is due to the laundry or the imbalance in vibration, the best intercepted due to the resilient suspension and additional damping or not transferred to the housing or the floor. However, the swing of the tub must be monitored so that at the risk of excessive vibration, the washing motion or the spin cycle can be stopped so that no damage caused by a collision of the tub with the housing or other component. Furthermore, the laundry weight or an imbalance can be determined on the basis of the vibration behavior, so that compensatory measures, such as a redistribution of the laundry, can be made.

Aus der DE 20 2007 002 626 U1 ist eine Waschmaschine bekannt, die eine Erfassungseinrichtung zur Erfassung der Position und/oder der Lage des Laugenbehälters in dem Gehäuse besitzt. Die Erfassungseinrichtung umfasst einen am beweglichen Laugenbehälter angebrachten Magneten, der in Wirkverbindung mit einem relativ zum Gehäuse feststehenden Sensor steht. Der Sensor ist dazu eingerichtet, neben der Flussdichte des Magnetfeldes auch die Richtung des Magnetfeldes zu bestimmen. Der Sensor ist hierbei nicht mit dem Magneten gekoppelt.From the DE 20 2007 002 626 U1 a washing machine is known, which has a detection device for detecting the position and / or the position of the tub in the housing. The detection device comprises a magnet attached to the movable tub, which is in operative connection with a sensor fixed relative to the housing. The sensor is set up to determine the direction of the magnetic field in addition to the flux density of the magnetic field. The sensor is not coupled with the magnet.

Aus der DE 100 22 609 A1 ist es bekannt, am Umfang des Laugenbehälters mehrere Sensoren anzubringen, um eine genaue Erfassung von unwuchtbedingten Bewegungen oder Auslenkungen des Laugenbehälters zu erreichen. Diese Anordnung ist aufgrund der Verschaltung von mehreren Sensoren recht aufwändig.From the DE 100 22 609 A1 It is known to attach a plurality of sensors on the circumference of the tub in order to achieve an accurate detection of unbalanced movements or deflections of the tub. This arrangement is quite complex due to the interconnection of multiple sensors.

Aus der DE 196 43 008 C1 ist eine Waschmaschine mit einem schwingbeweglichen Laugenbehälter und einer darin drehenden Trommel bekannt, bei der der Laugenbehälter mittels einer Transportsicherung innerhalb des Gehäuses zum Transport fixiert werden kann, um Auslenkungen des Laugenbehälters zu verhindern. Die Mittel zur Transportsicherung sind hierbei mit Sensoren versehen, die mit der Steuereinrichtung zusammenwirken, um einen Schleuderbetrieb mit eingesetzter Transportsicherung zu verhindern. Um diese Sicherheitsfunktion bereitzustellen, ist es zwingend notwendig, dass die eingesetzten Transportmittel mit der entsprechenden Sensorik versehen sind. Hierbei kann es in seltenen, ungewöhnlichen Falken vorkommen, dass aufgrund von Stößen während des Transports die Sensoren an den stossbehafteten Sicherungsmitteln beschädigt werden und eine Fehlsensierung im nachfolgenden Betrieb verursachen.From the DE 196 43 008 C1 a washing machine with a swingable tub and a rotating drum is known in which the tub can be fixed by means of a transport lock within the housing for transport to prevent deflections of the tub. The means for securing transport here are provided with sensors which cooperate with the control device to prevent a spin operation with inserted transport lock. In order to provide this safety function, it is imperative that the means of transport used are provided with the corresponding sensors. In rare, unusual falcons, it is possible that due to shocks during transport, the sensors on the shock-absorbing securing means will be damaged and cause misdetection in the subsequent operation.

Der Erfindung liegt somit die Aufgabe zugrunde, eine Trommel-Waschmaschine mit einer zuverlässigen und sicheren Sensorik für die Transportsicherungsmittel bereit zu stellen.The invention is therefore based on the object to provide a drum washing machine with a reliable and safe sensor for the transport security means.

Erfindungsgemäß wird die Aufgabe durch eine Waschmaschine mit den Merkmalen des unabhängigen Anspruchs 1 gelöst. Vorteilhafte Ausgestaltungen und Weiterbildungen der Erfindung ergeben sich aus den nachfolgenden abhängigen Ansprüchen.According to the invention the object is achieved by a washing machine with the features of the independent claim 1. Advantageous embodiments and modifications of the invention will become apparent from the following dependent claims.

Die mit der Erfindung erreichbaren Vorteile bestehen darin, dass eine sehr genaue Erfassung der Position und Lage des Laugenbehälters bereitgestellt wird, so dass gezielt angepasste Maßnahmen zur Begrenzung der Auslenkungen des Laugenbehälters eingeleitet werden können. Ferner wird mit derselben Sensoranordnung auch das Vorhandensein eines eingesetzten Transportsicherungsmittels erfasst und als Ergebnis der Steuerungseinrichtung zugeführt, die dann entsprechend eine Warnungsmeldung an den Benutzer ausgeben kann und/oder den weiteren Betrieb eines aktivierten Waschprogramms unterbrechen kann.The achievable with the invention advantages are that a very accurate detection of the position and position of the tub is provided so that purposefully adapted measures to limit the deflections of the tub can be initiated. Furthermore, with the same sensor arrangement, the presence of an inserted transport securing means is detected and supplied as a result of the control device, which can then issue a warning message to the user and / or interrupt the further operation of an activated washing program.

Hierzu ist der Magnet und der Magnetfeldsensor, im Bereich des Transportsicherungsmittels angeordnet, um zu bewirken, dass ein eingesetztes bzw. aktiviertes Transportsicherungsmittel das Magnetfeld beeinflusst. Das durch das Transportsicherungsmittel beeinflusste Magnetfeld wird anhand des veränderten Verlaufs der Magnetfeldlinien vom Magnetfeldsensor erfasst und als Signal oder Datum der Steuereinrichtung zugeführt, die dann entsprechend ein Schleudergang oder Waschgang nicht durchführt, wenn er gestartet ist. Ferner können auch andere Sicherheitsfunktionen durchgeführt werden.For this purpose, the magnet and the magnetic field sensor are arranged in the region of the transport securing means in order to cause an inserted or activated transport securing means to influence the magnetic field. The magnetic field influenced by the transport securing means is detected by the magnetic field sensor on the basis of the changed course of the magnetic field lines and supplied as a signal or date to the control device, which accordingly does not perform a spin cycle or wash cycle when it has started. Furthermore, other security functions can be performed.

In einer zweckmäßigen Ausführung umfasst das Transportsicherungsmittel magnetisch leitfähiges oder magnetisches Material. Dadurch wird sichergestellt, dass zuverlässig eine Beeinflussung des Magnetfeldes im Erfassungsbereich des Sensors stattfindet, wenn das Transportsicherungsmittel eingesetzt bzw. aktiviert ist.In an expedient embodiment, the transport securing means comprises magnetically conductive or magnetic material. This ensures that a reliable influence of the magnetic field takes place in the detection range of the sensor when the transport securing means is used or activated.

In einer weiteren, zweckmäßigen Ausführung besteht das Transportsicherungsmittel aus mittels einer aus wenigstens einer Stange, die im gesicherten Zustand in Aufnahmeeinrichtungen an einem vorderen Gehäuseteil und in weiteren Aufnahmeeinrichtungen an der Rückwand des Maschinengehäuses fixiert ist, und wobei die Stange im Mittelbereich mit dem Laugenbehälter mittels Laschen kraftschlüssig verbunden ist. Solche Transportstangen sind einfach zu handhaben und bieten eine sehr haltbare zuverlässige Fixierung des Laugenbehälters am bzw. im Gehäuse.In a further expedient embodiment, the transport securing means consists of means of one of at least one rod which is fixed in the secured state in receiving devices on a front housing part and in other receiving devices on the rear wall of the machine housing, and wherein the rod in the central region with the tub by means of tabs positively connected. Such transport rods are easy to handle and provide a very durable reliable fixation of the tub on or in the housing.

In einer vorteilhaften Ausführung der Erfindung ist der Magnetfeldsensor in einem Abstand im Bereich von 1 bis 8 cm relativ zum Positionierbereich des Transportsicherungsmittels angeordnet. Damit ist sichergestellt, dass das Transportsicherungsmittel im eingesetzten Zustand eine deutlich erfassbare Änderung des Magnetfeldes bzw. Der Magnetfeldlinien bewirkt.In an advantageous embodiment of the invention, the magnetic field sensor is arranged at a distance in the range of 1 to 8 cm relative to the positioning region of the transport securing means. This ensures that the transport securing means in the inserted state causes a clearly detectable change in the magnetic field or the magnetic field lines.

In einer vorteilhaften Weiterbildung ist der Sensor an einem fronseitigen Gehäuseteil innerhalb des Gehäuses befestigt. Hier ist genügend Freiraum für den am Laugenbehälter angebrachten Magneten vorhanden, sodass im Normalbetreib keine Kollisionen mit anderen Bauteilen innerhalb der Waschmaschine vorkommen.In an advantageous development of the sensor is attached to a fronseitigen housing part within the housing. There is enough free space for the magnets attached to the tub, so that in normal operation no collisions with other components within the washing machine occur.

In einer insgesamt vorteilhaften Ausführung umfasst die Waschmaschine eine Steuereinrichtung, die mit dem Magnetfeldsensor in Wirkverbindung steht und anhand der Zustände ein aktiviertes Programm zur Wäschebehandlung durchführen kann.
Die Steuereinrichtung ist hierbei zur Durchführung einer Sicherheitsfunktion konfiguriert, wenn ein aktiviertes Transportsicherungsmittel durch den Magnetfeldsensor erfasst bzw. erkannt wird.In an overall advantageous embodiment, the washing machine comprises a control device, which is in operative connection with the magnetic field sensor and can perform an activated program for laundry treatment on the basis of the states.
The control device is in this case configured to perform a safety function when an activated transport securing means is detected or detected by the magnetic field sensor.

Als Sicherheitsfunktion dient in vorteilhafter Weise eine Warnmeldung an den Benutzer in Form einer akustischen oder visuellen Ausgabe. Mit der Steuereinrichtung kann eine solche Funktion durch Programmierung einfach und zuverlässig bereitgestellt werden.As a safety function is advantageously a warning message to the user in the form of an acoustic or visual output. With the control device, such a function can be provided simply and reliably by programming.

Insgesamt ist es vorteilhaft, dass das Transportsicherungsmittel dazu ausgebildet ist, den Verlauf und/oder die Richtung der Feldlinien im eingesteckten Zustand zu verändern, wobei der Magnetfeldsensor dazu ausgebildet ist, eine dreidimensionale Ortsveränderungen des korrespondierenden Magneten anhand des Feldinienverlaufs sowie die durch das eingesteckte Transportsicherungsmittel bedingte Veränderung der Feldlinien zu erfassen. Damit kann mit einer einzigen Sensoranordnung sowohl durch Unwucht bedingte Bewegungen des Laugenbehälters im Betrieb der Waschmaschine als auch das Vorhandensein des eingesetzten Transportsicherungsmittels erfasst bzw. erkannt werden. Weitere Sensoren oder andere Maßnahmen sind dann nicht mehr notwendig.Overall, it is advantageous that the transport securing means is adapted to change the course and / or the direction of the field lines in the inserted state, wherein the magnetic field sensor is adapted to a three-dimensional changes in location of the corresponding magnet based on the Feldinienverlaufs and due to the inserted transport securing means Capture change in field lines. This can be detected or detected by unbalanced movements of the tub during operation of the washing machine and the presence of the transport securing means used with a single sensor arrangement. Additional sensors or other measures are then no longer necessary.

In einer zweckmäßigen Weiterbildung ist der Magnetfeldsensor dazu ausgebildet, die im Betrieb auftretenden dreidimensionalen Veränderungen der Feldlinien von der durch da eingesteckte Transportsicherungsmittel bedingte Veränderung der Feldlinien zu unterscheiden und als entsprechendes Signal oder Datum der Steuereinrichtung zuzuführen.In an expedient development, the magnetic field sensor is designed to distinguish the three-dimensional changes in the field lines occurring during operation from the change in the field lines caused by the inserted transport securing means and to supply them to the control device as a corresponding signal or datum.

Insgesamt beziehen sich die Richtungs - und Positionsangaben auf die betriebsgemäße Aufstellposition der Waschmaschine.Overall, the direction and position information refer to the operational installation position of the washing machine.

Ein Ausführungsbeispiel der Erfindung ist in den Zeichnungen rein schematisch dargestellt und wird nachfolgend näher beschrieben. Es zeigen:

Fig. 1:
eine skizzierte Ansicht einer Waschmaschine mit der Erfassungseinrichtung;
Fig. 2:
eine skizzierte Detailansicht eines Laugenbehälterbereichs ohne Transportsicherungsmittel und
Fig. 3:
eine skizzierte Detailansicht des Laugenbehälterbereichs mit Transportsicherungsmittel.
An embodiment of the invention is shown purely schematically in the drawings and will be described in more detail below. Show it:
Fig. 1:
a sketched view of a washing machine with the detection device;
Fig. 2:
a sketched detail view of a tub area without transport locking means and
3:
a sketched detail view of the tub area with transport securing means.

Die Fig. 1 zeigt in einer skizzierten Ansicht eine Waschmaschine 1, welche ein Gehäuse 2 mit einem darin schwingbeweglich angebrachten Laugenbehälter 4 umfasst. Der Laugenbehälter 4 ist mittels Federelemente 11 schwingbeweglich in dem Gehäuse 2 mittels Federn 11 an einem Gehäuseteil im oberen Bereich aufgehängt und mittels Dämpfer 12, die am Gehäuseboden 13 abgestützt sind, hinsichtlich seiner Bewegung gedämpft. In dem Laugenbehälter 4 ist eine drehbare Trommel 3 mit einer wenigstens annähernd horizontalen Drehachse 6 angeordnet. Die Trommel 3 ist mit einem Motor 5 antreibbar, so dass die Drehbewegung beim Waschen oder beim Schleudern bereitgestellt wird. Die Waschmaschine 1 umfasst ferner eine Erfassungseinrichtung 7 zur Erfassung der Position und/oder Lage und/oder der Bewegung des Laugenbehälters 4 relativ zum Gehäuse 2. Ein Haltemittel 14 ist dazu eingerichtet, den Magneten 9 zu halten, um den Magneten in bevorzugte Position relativ zum ortsfest am Gehäuse 2 angebrachten Magnetfeldsensor 8 zu platzieren. In dem gezeigten Beispiel hat die Waschmaschine 1 eine stirnseitige Beladungsöffnung, die Erfassungseinrichtung 7 ist jedoch in gleicher Weise für eine mantelbeschickbare Waschmaschine, wie beispielsweise einen Toplader, verwendbar.The Fig. 1 shows in a sketched view of a washing machine 1, which comprises a housing 2 with a tub 4 mounted therein swingably movable. The tub 4 is suspended by means of spring elements 11 swingably in the housing 2 by means of springs 11 on a housing part in the upper region and damped by means of damper 12 which are supported on the housing bottom 13, with respect to its movement. In the tub 4 a rotatable drum 3 is arranged with an at least approximately horizontal axis of rotation 6. The drum 3 is drivable with a motor 5, so that the rotational movement is provided during washing or spinning. The washing machine 1 further comprises a detection device 7 for detecting the position and / or position and / or the movement of the tub 4 relative to the housing 2. A holding means 14 is adapted to hold the magnet 9 to the magnet in preferred position relative to stationarily attached to the housing 2 mounted magnetic field sensor 8. In the example shown, the washing machine 1 has a front-side loading opening, but the detecting device 7 can be used in the same way for a coat-loadable washing machine, such as a top loader.

Der Magnet 9 ist hierbei derart im Wirkbereich des Sensors 8 angeordnet, dass eine sogenannte dreidimensionale Erfassung der Magnetposition möglich ist, wobei der Sensor 8 für eine derartige dreidimensionale Erfassung ausgebildet ist. Zur Bestimmung der Unwucht bzw. der unwuchtbedingten Bewegungen des Laugenbehälters 4 wird der Mikrocomputer der Steuereinrichtung 22 verwendet, dem die Signale des Sensors 8 zugeführt werden. Die Transformation der Sensorsignale in von der Steuerung 22 verwertbare Daten kann alternativ auch mittels einer separaten elektronischen Schaltung oder einer separaten Mikroprozessorschaltung durchgeführt werden, die vorzugsweise mit dem Sensor 8 als smarte, kompakte Einheit ausgebildet ist.The magnet 9 is in this case arranged in the effective range of the sensor 8, that a so-called three-dimensional detection of the magnet position is possible, wherein the sensor 8 is designed for such a three-dimensional detection. To determine the imbalance or the unbalanced movements of the tub 4, the microcomputer of the control device 22 is used to which the signals of the sensor 8 are supplied. The transformation of the sensor signals into data which can be utilized by the controller 22 may alternatively also be effected by means of a separate electronic circuit or a separate electronic circuit Microprocessor circuit are performed, which is preferably formed with the sensor 8 as a smart, compact unit.

In Fig. 1 ist ferner zu erkennen, dass der Laugenbehälter 4 mittels aus Transportstangen 10 gebildeten Transportsicherungsmitteln gegen Stöße gesichert ist. Die Stangen 10 befinden sich im gesicherten Zustand in Aufnahmeeinrichtungen 15a im vorderen Gehäuseteil 15 und weiteren Aufnahmeeinrichtungen 16a in der Rückwand 16. Dabei sind die Stangen 10 im Abschnitt zwischen der Rückwand 16 und dem vorderen Gehäuseteil 15 mit dem Laugenbehälter 4 über Laschen oder Augen 17a, 17b form- und/oder kraftschlüssig mit dem Laugenbehälter 4 verbunden. Im vorderen Bereich des mittleren Abschnitts ist die Stange 10 mit der vorderen Lasche 17a verbunden, im hinteren Bereich des innerhalb des Gehäuses 2 erstreckenden Abschnitts ist die Stange 10 mit der hinteren Lasche 17b form- und/oder kraftschlüssig verbunden. Dadurch wird die Fixierung des Laugenbehälters 4 am bzw. im Gehäuse 2 erreicht, sodass Relativbewegungen des Laugenbehälters 4 gegenüber dem Gehäuse 2 beispielsweise beim Transport unterbunden werden. Der Laugenbehälter 4 ist im unteren seitlichen Bereich mit jeweils einer Traverse 18 an jeder Seite versehen, die sich in Längsrichtung des Laugenbehälters 4 erstreckt. An der Traverse 18 sind die Laschen oder Augen 17a, 17b für die Transportstange 10 angeformt bzw. herausgeformt und das Haltemittel 12a für den Stoßdämpfer 12.In Fig. 1 It can also be seen that the tub 4 is secured by means of transport rods 10 formed transport securing means against shocks. The rods 10 are in the secured state in receiving means 15a in the front housing part 15 and further receiving means 16a in the rear wall 16. The rods 10 in the section between the rear wall 16 and the front housing part 15 with the tub 4 via tabs or eyes 17a, 17b positively and / or non-positively connected to the tub 4. In the front region of the middle section, the rod 10 is connected to the front flap 17a, in the rear region of the section extending inside the housing 2, the rod 10 is positively and / or non-positively connected to the rear flap 17b. As a result, the fixation of the tub 4 is achieved on or in the housing 2, so that relative movements of the tub 4 relative to the housing 2 are prevented for example during transport. The tub 4 is provided in the lower lateral region, each with a cross member 18 on each side, which extends in the longitudinal direction of the tub 4. On the traverse 18, the tabs or eyes 17a, 17b are formed or shaped for the transport bar 10 and the holding means 12a for the shock absorber 12th

Zur Verdeutlichung der Sensierung ist in Fig. 2 der Verlauf der Magnetfeldlinien 19 bei entfernter Transportstange 10 skizziert. Die Magnetfeldlinien 19 breiten sich von einem ersten Magnetpol 20a ausgehend bogenförmig aus und erreichen den zweiten Magnetpol 20b. Der Magnetfeldsensor 8 ist so im Wirkbereich dieser Feldlinien 19 angeordnet, dass diese sensiert werden und Bewegungen des Laugenbehälters 4 relativ zum feststehenden Sensor 8 die Lage der Feldlinien 19 verändern. Je nach Lage treffen mal mehr und mal weniger Feldlinien 19 auf den Sensor 8, wobei diese Intensität entsprechend sensiert und als Positionssignal der Steuereinrichtung 22 zugeführt wird.To clarify the sensation is in Fig. 2 outlined the course of the magnetic field lines 19 with the transport rod 10 removed. The magnetic field lines 19 extend arcuately starting from a first magnetic pole 20a and reach the second magnetic pole 20b. The magnetic field sensor 8 is arranged in the effective range of these field lines 19 such that they are sensed and movements of the tub 4 relative to the stationary sensor 8 change the position of the field lines 19. Depending on the situation, more and fewer field lines 19 sometimes hit the sensor 8, whereby this intensity is correspondingly sensed and fed to the control device 22 as a position signal.

Fig. 3 zeigt die Situation mit eingesteckter Transportstange 10. Hierbei ist zu erkennen, dass die Feldlinien 19 durch die Transportstange 10 etwas abgelenkt werden, wodurch sich der bogenförmige Verlauf etwas verzerrt darstellt. Diese Veränderung führt dazu, dass die Feldlinien 19 in unterschiedlicher Intensität oder Richtung auf den Sensor 8 auftreffen, und entsprechend sensiert wird. Im skizzierten Beispiel treffen weniger Feldlinien 19 auf den Sensor 8 auf, der somit eine verminderte Intensität gegenüber der Situation in Fig. 2 sensiert. Dies wird dann von der Steuereinrichtung 22 entsprechend so interpretiert, dass eine Transportstange 10 eingesteckt ist. Die Transportstange 10 ist in diesem Beispiel aus einem magnetisch leitendendem Stahl hergestellt. Der Sensor 8 und der Magnet 9 ist etwas beabstandet von der Traverse 18 und vom Laugenbehälter 4 angebracht, da diese Bauteile in diesem Beispiel aus Stahl hergestellt sind und eine zu starke Beeinflussung des Magnetfeldes 19 vermieden wird. Fig. 3 shows the situation with inserted transport rod 10. Here it can be seen that the field lines 19 are deflected by the transport rod 10 something, whereby the arcuate course is slightly distorted. This change causes the field lines 19 to impinge on the sensor 8 in different intensity or direction, and is sensed accordingly. In the example sketched, fewer field lines 19 impinge on the sensor 8, which thus has a reduced intensity compared with the situation in FIG Fig. 2 sensed. This is then interpreted by the control device 22 accordingly so that a transport rod 10 is inserted. The transport bar 10 is made in this example of a magnetically conductive steel. The sensor 8 and the magnet 9 is slightly spaced from the traverse 18 and the tub 4 attached, since these components in This example are made of steel and an excessive influence of the magnetic field 19 is avoided.

Als Sensor 8 wird in einer bevorzugten Ausführung ein sogenannter Hall-Sensor verwendet, der eine 3-dimensinale Erfassung der Feldlinien 19 bietet. Der Sensor 8 beinhaltet neben dem Hall-Sensorbauteil auch eine Schaltungsanordnung zur Signal- oder Datenerzeugung, um eine für die Steuereinrichtung verwertbare Information bereitzustellen.As a sensor 8, a so-called Hall sensor is used in a preferred embodiment, which offers a 3-dimensinal detection of the field lines 19. In addition to the Hall sensor component, the sensor 8 also contains a circuit arrangement for signal or data generation in order to provide information that can be used for the control device.

Claims (9)

Waschmaschine (1) mit einem Gehäuse (2), mit einem in dem Gehäuse (2) schwingbeweglich angeordneten Laugenbehälter (4) mit einer darin drehbar angeordneten Trommel (3) mit einer wenigstens annähernd horizontalen Drehachse (6), die mittels eines Motors (5) antreibbar ist und einer Erfassungseinrichtung (7) zur Erfassung der Position und/oder Lage des Laugenbehälters (4) in dem Gehäuse (2), die einen Magnetfeldsensor (8), der im wesentlichen fest dem Gehäuse (2) zugeordnet ist und mit einem korrespondierenden Magneten (9), der in einem Haltemittel (14) am Laugenbehälter (4) angebracht ist, umfasst, der dazu eingerichtet ist, die Flussdichte und die Richtung des vom Magneten (9) ausgehenden Magnetfeldes (19) zu erfassen, wobei der Laugenbehälter (4), mittels zumindest einem Transportsicherungsmittel (10) im Gehäuse (2) fixiert werden kann,
dadurch gekennzeichnet,
dass der Magnet (9) und der Magnetfeldsensor (8), im Bereich des Transportsicherungsmittels (10) angeordnet ist, derart, dass ein eingesetztes bzw. aktiviertes Transportsicherungsmittel (10) das Magnetfeld (19) beeinflussen kann, um eine Erfassung des beeinflussten Magnetfeldes (19) mit dem Magnetfeldsensor (8) zu bewirken.A washing machine (1) having a housing (2) with a tub (4) arranged in a swinging motion in the housing (2) with a drum (3) rotatably disposed therein and having an at least approximately horizontal axis of rotation (6) ) and a detection device (7) for detecting the position and / or position of the tub (4) in the housing (2) having a magnetic field sensor (8) which is substantially fixed to the housing (2) and associated with a corresponding magnet (9), which is mounted in a holding means (14) on the tub (4) comprises, which is adapted to detect the flux density and the direction of the magnet (9) emanating magnetic field (19), wherein the tub (4), by means of at least one transport securing means (10) in the housing (2) can be fixed,
characterized,
in that the magnet (9) and the magnetic field sensor (8) are arranged in the region of the transport securing means (10) such that an inserted transport securing means (10) can influence the magnetic field (19) in order to detect the influenced magnetic field ( 19) with the magnetic field sensor (8) to effect. Waschmaschine (1) nach Anspruch 1,
dadurch gekennzeichnet,
dass das Transportsicherungsmittel (10) magnetisch leitfähiges oder magnetisches Material umfasst.Washing machine (1) according to claim 1,
characterized,
in that the transport securing means (10) comprises magnetically conductive or magnetic material. Waschmaschine (1) nach Anspruch 1,
dadurch gekennzeichnet,
dass das Transportsicherungsmittel (10) aus mittels einer aus wenigstens einer Stange (10) besteht, die im gesicherten Zustand in Aufnahmeeinrichtungen (15a) an einem vorderen Gehäuseteil (15) und in weiteren Aufnahmeeinrichtungen (16a) an der Rückwand (16) des Maschinengehäuses (2) fixiert ist, und wobei die Stange (10) im Mittelbereich mit dem Laugenbehälter (4) mittels Laschen (17a, 17b) kraftschlüssig verbunden istWashing machine (1) according to claim 1,
characterized,
in that the transport securing means (10) consists of one of at least one rod (10) which in the secured state in receiving devices (15a) on a front housing part (15) and in further receiving means (16a) on the rear wall (16) of the machine housing (16) 2) is fixed, and wherein the rod (10) in the central region with the tub (4) by means of tabs (17a, 17b) is non-positively connected Waschmaschine (1) nach Anspruch 1,
dadurch gekennzeichnet,
dass der Magnetfeldsensor (8) in einem Abstand im einem Bereich von 1 bis 8 cm relativ zum Positionierbereich für das Transportsicherungsmittel (10) angeordnet ist.Washing machine (1) according to claim 1,
characterized,
in that the magnetic field sensor (8) is arranged at a distance in a range of 1 to 8 cm relative to the positioning region for the transport securing means (10). Waschmaschine (1) nach Anspruch 4,
dadurch gekennzeichnet,
dass der Sensor (8) an einem fronseitigen Gehäuseteil (15) innerhalb des Gehäuses (2) befestigt ist.Washing machine (1) according to claim 4,
characterized,
in that the sensor (8) is fastened to a front-side housing part (15) within the housing (2). Waschmaschine (1) nach Anspruch 1,
umfassend eine Steuereinrichtung (22), die mit dem Magnetfeldsensor (8) in
Wirkverbindung steht und anhand der Zustände ein aktiviertes Programm zur
Wäschebehandlung durchführen kann,
dadurch gekennzeichnet,
dass die Steuereinrichtung (22) zur Durchführung einer Sicherheitsfunktion konfiguriert ist, bei einem erfassten aktivierten Transportsicherungsmittel (10).Washing machine (1) according to claim 1,
comprising a control device (22) connected to the magnetic field sensor (8) in
Active connection stands and based on the states of an activated program for
Can carry out laundry treatment,
characterized,
in that the control device (22) is configured to perform a safety function with a detected activated transport securing means (10). Waschmaschine (1) nach Anspruch 6,
dadurch gekennzeichnet,
dass die Sicherheitsfunktion eine Warnmeldung an den Benutzer in Form einer akustischen oder visuellen Ausgabe ist.Washing machine (1) according to claim 6,
characterized,
that the security function is a warning message to the user in the form of an audible or visual output. Waschmaschine (1) nach einem der Ansprüche 1 bis 7,
dadurch gekennzeichnet,
dass das Transportsicherungsmittel (10) dazu ausgebildet ist, den Verlauf und/oder die Richtung der Feldlinien (19) im eingesteckten Zustand zu verändern, wobei der Magnetfeldsensor (8) dazu ausgebildet ist, eine dreidimensionale Ortsveränderungen des korrespondierenden Magneten (9) anhand des Feldlinienverlaufs (19) sowie die durch das eingesteckte Transportsicherungsmittel (10) bedingte Veränderung der Feldlinien (19) zu erfassen.Washing machine (1) according to one of claims 1 to 7,
characterized,
in that the transport securing means (10) is designed to change the course and / or the direction of the field lines (19) in the inserted state, wherein the magnetic field sensor (8) is designed to produce a three-dimensional change in position of the corresponding magnet (9) on the basis of the field line profile (19) as well as the change of the field lines (19) caused by the inserted transport securing means (10). Waschmaschine (1) nach Anspruch 6 bis 8,
dadurch gekennzeichnet,
der Magnetfeldsensor (8) dazu ausgebildet ist, die im Betrieb auftretenden dreidimensionalen Veränderungen der Feldlinien (19) von der durch da eingesteckte Transportsicherungsmittel (10) bedingte Veränderung der Feldlinien (19) zu unterscheiden und als entsprechendes Signal oder Datum der Steuereinrichtung (22) zuzuführen.Washing machine (1) according to claims 6 to 8,
characterized
the magnetic field sensor (8) is designed to distinguish the three-dimensional changes in the field lines (19) occurring during operation from the change in the field lines (19) caused by the inserted transport securing means (10) and to supply them as a corresponding signal or date to the control device (22) ,
EP11401056.4A 2011-04-06 2011-04-06 Washing machine with a tub and a detecting device Active EP2508666B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP11401056.4A EP2508666B1 (en) 2011-04-06 2011-04-06 Washing machine with a tub and a detecting device
ES11401056.4T ES2467935T3 (en) 2011-04-06 2011-04-06 Washing machine with a laundry tray and detection equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP11401056.4A EP2508666B1 (en) 2011-04-06 2011-04-06 Washing machine with a tub and a detecting device

Publications (2)

Publication Number Publication Date
EP2508666A1 true EP2508666A1 (en) 2012-10-10
EP2508666B1 EP2508666B1 (en) 2014-04-30

Family

ID=44118507

Family Applications (1)

Application Number Title Priority Date Filing Date
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Country Status (2)

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EP (1) EP2508666B1 (en)
ES (1) ES2467935T3 (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19643008C1 (en) 1996-10-18 1997-11-20 Miele & Cie Washing machine
DE10022609A1 (en) 2000-05-09 2001-11-29 Whirlpool Co Device for limiting the unbalance effect of a washing unit in a washing machine
DE202007002626U1 (en) 2007-02-22 2007-04-19 BSH Bosch und Siemens Hausgeräte GmbH Combined washing machine and dryer includes magnetic detector sensing position and attitude of drum container vessel within outer casing
EP2175061A1 (en) * 2008-09-19 2010-04-14 Panasonic Corporation Washing machine

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19643008C1 (en) 1996-10-18 1997-11-20 Miele & Cie Washing machine
DE10022609A1 (en) 2000-05-09 2001-11-29 Whirlpool Co Device for limiting the unbalance effect of a washing unit in a washing machine
DE202007002626U1 (en) 2007-02-22 2007-04-19 BSH Bosch und Siemens Hausgeräte GmbH Combined washing machine and dryer includes magnetic detector sensing position and attitude of drum container vessel within outer casing
EP2175061A1 (en) * 2008-09-19 2010-04-14 Panasonic Corporation Washing machine

Also Published As

Publication number Publication date
ES2467935T3 (en) 2014-06-13
EP2508666B1 (en) 2014-04-30

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