EP0780507A2 - Driving device for a front loading washing machine - Google Patents

Driving device for a front loading washing machine Download PDF

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Publication number
EP0780507A2
EP0780507A2 EP96118606A EP96118606A EP0780507A2 EP 0780507 A2 EP0780507 A2 EP 0780507A2 EP 96118606 A EP96118606 A EP 96118606A EP 96118606 A EP96118606 A EP 96118606A EP 0780507 A2 EP0780507 A2 EP 0780507A2
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EP
European Patent Office
Prior art keywords
rotor
motor
shaft
stator
drive device
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Granted
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EP96118606A
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German (de)
French (fr)
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EP0780507B1 (en
EP0780507A3 (en
Inventor
Jörg Dipl.-Ing. Skrippek (FH)
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BSH Hausgeraete GmbH
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Individual
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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
    • D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
    • D06F37/30—Driving arrangements 
    • D06F37/304—Arrangements or adaptations of electric motors
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
    • D06F37/30—Driving arrangements 
    • D06F37/40—Driving arrangements  for driving the receptacle and an agitator or impeller, e.g. alternatively

Definitions

  • the invention relates to a drive device for a washing machine which can be loaded from the front and has a washing drum which is mounted on the inside of a bearing sleeve of a rigid supporting part which is attached to the rear wall of a tub, via an at least approximately horizontally lying shaft and which is also mounted on the back of the tub by a flat motor is directly driven.
  • Such drive devices are known from DE 39 27 426 A1 and DE 43 41 832 A1.
  • the stator of the motor designed as a brushless external rotor direct current motor is fastened directly on the bearing sleeve of the rigid support part.
  • the shaft is mounted in the bearing sleeve and is connected at its outer end to the rotor of the motor in a rotationally fixed manner.
  • This rotor is a so-called external rotor, which overlaps the stator windings as a pot and carries poles designed as permanent magnets.
  • the motor is additionally surrounded by an insulation hood, which dampens noise emitted by the motor directly to the surrounding atmosphere.
  • the known drive devices encapsulate the stator, which is exposed to a considerable temperature load due to current heat in its windings, by a pot-shaped rotor (in the case of DE 43 41 832 A1 additionally by the sound insulation hood) so strongly that cooling of the motor fails at all. This is supported above all by the fact that such a directly driving motor can hardly be cooled by the rotating rotor because of its necessarily low inherent speeds. Therefore, the known drive devices are practically only useful if they are protected from rapid overheating by external cooling.
  • the known drive devices are also not available as a fully assembled motor to the manufacturer of washing machines. Your stand and runner must be separate delivered and assembled in the washing machine factory. Since special assembly devices for completing motor assemblies are generally not available in a washing machine plant and are also not desired, the stator assembly to be initially connected to the tub system should only be inaccurately completed by the external rotor assembly. Since extremely high demands are made on maintaining a small air gap between the stator and rotor poles, as large as possible for each specimen, as well as on the centered storage, which cannot be met in the aforementioned assembly in a washing machine factory, the known ones Drive devices can only be used to a very limited extent in practice.
  • the invention has for its object to design the drive device mentioned above so that on the one hand cooling of the stator windings through the ambient air can be easily guaranteed and the motor can not overheat in proper operation with dimensioning according to requirements and on the other hand the motor is completed in the factory of the motor manufacturer and can be checked before it is to be installed at a washing machine manufacturer.
  • the stand is connected to the rigid support part or instead of the rigid support part with the rear wall of the tub and has a central bearing sleeve for the shaft of the laundry drum and for a hub of the rotor encompassing the shaft, that at the outer end the shaft, the hub of the rotor, which has a plurality of openings between its hub and the peripheral part and on its periphery a bell-shaped flange facing the tub, is centered and that the rotor with its magnetizable poles distributed on the inner periphery of the bell-shaped flange via a minimal air gap is opposed to the sheet metal packages distributed on the stand intended to accommodate exciter windings of the stand from the outside.
  • the configuration according to the invention gives the motor an open design, the heat-generating components of which, above all the stator windings, can be cooled from all sides by the ambient air. Even the low engine speed during washing operation is then sufficient for the rotor to generate heat-dissipating air movement.
  • the engine can also be fully assembled and tested in the engine supplier's factory.
  • the appropriate assembly and testing aids are available there, so that precisely assembled motor assemblies can always be delivered to the washing machine factory.
  • this assembly can be mounted on the rear wall of the tub system instead of a cast support star otherwise usual at this point or in addition.
  • the stator of the complete motor is attached to the rear wall of the tub by means of several screws. Then the shaft of the laundry drum from inserted into the hub of the rotor, which is already connected to the stand via the roller bearings, and secured from behind with a central screw.
  • parts of the rotor are designed to support an air movement which arises during its rotational movement, the rotor can be operated even with a slight rotational movement, e.g. at washing speed, produce enough cooling air for the stator windings.
  • a slight rotational movement e.g. at washing speed
  • the motor is an electronically commutated direct current motor
  • the heat development can moreover be kept extremely low. Maintenance is not necessary (no carbon brushes). The service life is only limited by possible bearing wear.
  • the rotor is at least partially equipped with an annular package of dynamo sheets and permanent magnet segments arranged thereon.
  • the permanent magnet segments produce a powerful torque, and the dynamo plates form a particularly good magnetic reflux.
  • the automation of the stacking process makes the production of the required laminated cores relatively uncomplicated and inexpensive.
  • the pole packs of the stator are advantageously composed of dynamo sheets and carry coils with the excitation windings.
  • the centered connection of the rotor can be supplemented in a rotationally fixed manner on the shaft by a positive profile shaft, profile hub, feather key, cone or keyway connection.
  • the motor can be designed as a so-called switched reluctance motor.
  • the rotor consists of a ferromagnetic material that is relatively poorly conductive.
  • the structure of the stator is comparable to that of the electronically commutated DC motor.
  • the advantage is in particular a more cost-effective design of the rotor (no expensive magnetic materials).
  • the tub 1 is swingingly mounted in a housing of a washing machine, also not shown, in a manner not shown here.
  • a motor 9 is mounted on the rear wall 6 of the tub 1, the stand supporting part 10 of which is connected to the rear wall 6 in a rotationally fixed manner via the flange 11.
  • a plurality of stator windings 12 are distributed on the rear surface of the stator support part 10 and, during the rotation of the rotor 13, alternately correspond to its poles 14, which here consist of permanent magnets and are also distributed in segments on the circumference of the rotor 13.
  • the magnetic return flow of the magnet segments 14 is formed by a packet of dynamo sheets 16 inserted into the bell flange 15.
  • the motor can introduce its drive torques directly into the washing drum 4 via the shaft journal 7.
  • the stator 10 of the motor like a supporting star replaced by it, also absorbs all bearing forces.
  • the rear wall 8 of the laundry drum 4 is stiffened with a support star 17, the hub 18 of which is connected in a rotationally fixed manner to a shaft journal 7.
  • the stand supporting part 10 carries on its outer circumference a plurality, preferably three, of fastening eyes 23 which are distributed around the circumference of the tub 1 and which provide a fixed connection to the tub by screws 24 via tabs 25 welded to the tub 1.
  • the stand support part 10 is screwed to a mounting disk 20 (screws 19), which in turn is screwed to the tub 1 on the rear wall 6 (screws 24).
  • the stand supporting part 10 can be made in one piece together with the mounting disk 20. Then the separate screwing of the bearing part 21 for the stator poles (consisting of windings 12 and laminated cores 32) to the mounting disc 20 would be omitted.
  • the bearing sleeve 22 of the stand supporting part 10 forms bearing seats 26 and 27 for rolling bearings 28 and 29, the inner rings of which are fitted onto the shaft journal 7 of the washing drum 4 with a good fit are.
  • the shaft 7 is inserted into the hub 31 of the rotor 13 and secured by means of a central screw 30, so that it connects the rotor 13 to the laundry drum 4 in a rotationally fixed manner via its hub 31 and the inner rings of the roller bearings 28 and 29.
  • the rotor disk 13 is equipped with openings 33 for better ventilation and cooling of the stator poles between its hub 22 and the bell flange 15 serving as a support ring for the magnetic segments 14.
  • These openings can advantageously be shaped at their edges so that the access of cooling air through these openings is supported in the sense of a fan effect.
  • so-called whirlers can be attached to the openings or in the vicinity thereof, which swirl the cooling air so that it receives better contact with the stator windings.
  • the motor is designed here as an electronically commutated DC motor. However, it can also be designed as a so-called switched reluctance motor.
  • at least the flange of the rotor or its inner support consists of a ferromagnetic material that is relatively poorly conductive.
  • the structure of the stator is comparable to that of an electronically commutated DC motor.
  • the advantage of the reluctance motor is, in particular, a more cost-effective design of the rotor (no expensive magnetic materials).
  • the screw connection 30 of the rotor 13 on the shaft 7 can be positively supplemented by a profile shaft, profile hub, feather key, cone or keyway connection, not shown.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Main Body Construction Of Washing Machines And Laundry Dryers (AREA)
  • Iron Core Of Rotating Electric Machines (AREA)
  • Cleaning By Liquid Or Steam (AREA)
  • Permanent Magnet Type Synchronous Machine (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
  • Vending Machines For Individual Products (AREA)
  • Brushless Motors (AREA)
  • Motor Or Generator Frames (AREA)
  • Detail Structures Of Washing Machines And Dryers (AREA)

Abstract

The drive for a front-loading washing machine has the stator (10) of the motor (9) mounted to the stiff carrier or the rear wall (6) of the container housing (1), with a central bearing bush (26) for the drum (4) shaft (7). The end of the shaft (7) has a hub (31) for the rotor (13). The hub (31) has a number of openings between it and the outer section, and a bell flange towards the container housing (1) in a central mounting. The rotor has a number of magnetising poles (14) distributed round the inner periphery of the flange, with a min. air gap to the plate packets (32) to hold the energising coils (12) at the stator (10), facing them from the outside. The packets (32) are composed of dynamo plates.

Description

Die Erfindung betrifft eine Antriebsvorrichtung für eine von vorn beschickbare Waschmaschine mit einer innerhalb einer Lagerhülse eines an der Rückwand eines Laugenbehälters angebrachten, steifen Tragteils über eine wenigstens annähernd horizontal liegende Welle fliegend gelagerten Wäschetrommel, die durch einen ebenfalls an der Rückseite des Laugenbehälters angebrachten, flachen Motor direkt angetrieben ist.The invention relates to a drive device for a washing machine which can be loaded from the front and has a washing drum which is mounted on the inside of a bearing sleeve of a rigid supporting part which is attached to the rear wall of a tub, via an at least approximately horizontally lying shaft and which is also mounted on the back of the tub by a flat motor is directly driven.

Solche Antriebsvorrichtungen sind aus der DE 39 27 426 A1 und der DE 43 41 832 A1 bekannt. Darin ist der Ständer des als kollektorloser Außenläufer-Gleichstrommotor ausgebildeten Motors unmittelbar auf der Lagerhülse des steifen Tragteils befestigt. Die Welle ist in der Lagerhülse gelagert und an ihrem äußeren Ende mit dem Läufer des Motors drehfest verbunden. Dieser Läufer ist hier ein sogenannter Außenläufer, der als Topf die Ständerwicklungen übergreift und als Permanentmagnete ausgebildete Pole trägt. Beim Waschautomaten gemäß der DE 43 41 832 A1 ist der Motor zusätzlich mit einer Dämmhaube umgeben, die vom Motor direkt an die umgebende Atmosphäre abgestrahle Geräusche dämpft.Such drive devices are known from DE 39 27 426 A1 and DE 43 41 832 A1. In it, the stator of the motor designed as a brushless external rotor direct current motor is fastened directly on the bearing sleeve of the rigid support part. The shaft is mounted in the bearing sleeve and is connected at its outer end to the rotor of the motor in a rotationally fixed manner. This rotor is a so-called external rotor, which overlaps the stator windings as a pot and carries poles designed as permanent magnets. In the automatic washing machine according to DE 43 41 832 A1, the motor is additionally surrounded by an insulation hood, which dampens noise emitted by the motor directly to the surrounding atmosphere.

Die bekannten Antriebsvorrichtungen kapseln den Ständer, der durch Stromwärme in seinen Wicklungen einer erheblichen Temperaturbelastung ausgesetzt ist, durch einen topfförmig gestalteten Läufer (im Falle der DE 43 41 832 A1 zusätzlich durch die Schalldämmhaube) so stark, daß eine Kühlung des Motors überhaupt ausfällt. Dies wird vor allem auch dadurch unterstützt, daß ein derartiger direkt antreibender Motor wegen seiner notwendigerweise geringen Eigendrehzahlen kaum zu einer eigenen Kühlung durch den sich drehenden Läufer kommen kann. Daher sind die bekannten Antriebsvorrichtungen praktisch nur brauchbar, wenn sie durch eine Fremdkühlung vor schneller Überhitzung geschützt werden.The known drive devices encapsulate the stator, which is exposed to a considerable temperature load due to current heat in its windings, by a pot-shaped rotor (in the case of DE 43 41 832 A1 additionally by the sound insulation hood) so strongly that cooling of the motor fails at all. This is supported above all by the fact that such a directly driving motor can hardly be cooled by the rotating rotor because of its necessarily low inherent speeds. Therefore, the known drive devices are practically only useful if they are protected from rapid overheating by external cooling.

Die bekannten Antriebsvorrichtungen sind außerdem nicht als bereits fertig montierter Motor an das Herstellerwerk von Waschmaschinen lieferbar. Ihre Ständer und Läufer müssen getrennt angeliefert und im Waschmaschinenwerk erst miteinander montiert werden. Da in der Regel in einem Waschmaschinenwerk speziellen Montageeinrichtungen zur Komplettierung von Motorbaugruppen nicht vorhanden und auch nicht gewünscht sind, dürfte die Komplettierung der zunächst mit dem Laugenbehältersystem zu verbindenden Ständerbaugruppe durch die Außenläufer-Baugruppe regelmäßig nur ungenau erfolgen. Da an die Einhaltung eines kleinen und bei jedem Exemplar möglichst immer gleich großen Luftspalts zwischen den Ständer- und den Läuferpolen sowie an die zentrierte Lagerung äußerst hohe Anforderungen gestellt werden, die bei der zuvor erwähnten Montage in einer Waschmaschinenfabrik nicht zu erfüllen sind, sind die bekannten Antriebsvorrichtungen praktisch nur sehr bedingt brauchbar.The known drive devices are also not available as a fully assembled motor to the manufacturer of washing machines. Your stand and runner must be separate delivered and assembled in the washing machine factory. Since special assembly devices for completing motor assemblies are generally not available in a washing machine plant and are also not desired, the stator assembly to be initially connected to the tub system should only be inaccurately completed by the external rotor assembly. Since extremely high demands are made on maintaining a small air gap between the stator and rotor poles, as large as possible for each specimen, as well as on the centered storage, which cannot be met in the aforementioned assembly in a washing machine factory, the known ones Drive devices can only be used to a very limited extent in practice.

Der Erfindung liegt die Aufgabe zugrunde, die eingangs bezeichnete Antriebseinrichtung so zu gestalten, daß einerseits eine Kühlung der Ständerwicklungen durch die Umgebungsluft ohne weiteres gewährleistet werden und der Motor sich im ordnungsgemäßen Betrieb bei anforderungsgerechter Dimensionierung nicht überhitzen kann sowie andererseits der Motor im Werk des Motorenherstellers komplettiert und geprüft werden kann, ehe er bei einem Waschmaschinen-Hersteller eingebaut werden soll.The invention has for its object to design the drive device mentioned above so that on the one hand cooling of the stator windings through the ambient air can be easily guaranteed and the motor can not overheat in proper operation with dimensioning according to requirements and on the other hand the motor is completed in the factory of the motor manufacturer and can be checked before it is to be installed at a washing machine manufacturer.

Erfindungsgemäß wird diese Aufgabe dadurch gelöst, daß der Ständer an dem steifen Tragteil oder anstelle des steifen Tragteils mit der Rückwand des Laugenbehälters verbunden ist und eine zentrale Lagerhülse für die Welle der Wäschetrommel und für eine die Welle umfassende Nabe des Läufers aufweist, daß am äußerem Ende der Welle die Nabe des Läufers, der zwischen seiner Nabe und der Umfangspartie eine Vielzahl von Öffnungen und an seinem Umfang einen zum Laugenbehälter weisenden, glockenartigen Flansch aufweist, zentriert befestigt ist und daß der Läufer mit seinen am Innenumfang des glockenförmigen Flansches verteilten magnetisierbaren Polen über einen minimalen Luftspalt den am Ständer verteilten, zur Aufnahme von Erregerwicklungen des Ständers vorgesehenen Blechpaketen von außen gegenübersteht.According to the invention this object is achieved in that the stand is connected to the rigid support part or instead of the rigid support part with the rear wall of the tub and has a central bearing sleeve for the shaft of the laundry drum and for a hub of the rotor encompassing the shaft, that at the outer end the shaft, the hub of the rotor, which has a plurality of openings between its hub and the peripheral part and on its periphery a bell-shaped flange facing the tub, is centered and that the rotor with its magnetizable poles distributed on the inner periphery of the bell-shaped flange via a minimal air gap is opposed to the sheet metal packages distributed on the stand intended to accommodate exciter windings of the stand from the outside.

Durch die erfindungsgemäße Ausgestaltung erhält der Motor eine offene Bauform, deren wärmeerzeugende Bauteile, das sind vor allem die Ständerwicklungen, von allen Seiten durch die Umgebungsluft gekühlt werden können. Selbst die geringe Motordrehzahl beim Waschbetrieb reicht dann noch dazu aus, daß der Läufer eine wärmeabführende Luftbewegung erzeugt.The configuration according to the invention gives the motor an open design, the heat-generating components of which, above all the stator windings, can be cooled from all sides by the ambient air. Even the low engine speed during washing operation is then sufficient for the rotor to generate heat-dissipating air movement.

Auf diese Weise kann der Motor außerdem im Herstellerwerk des Motorlieferanten komplett montiert und geprüft werden. Dort stehen die dafür geeigneten Montage- und Prüfhilfsmittel zur Verfügung, so daß immer gleich genau montierte Motorbaugruppen im Waschmaschinenwerk angeliefert werden können. Hier kann diese Baugruppe anstelle eines sonst an dieser Stelle üblichen Guß-Tragsterns oder zusätzlich dazu an die Rückwand des Laugenbehältersystems montiert werden. Dazu wird der Ständer des kompletten Motors mittels mehrerer Schrauben an irgend welchen Stellen der Rückwand des Laugenbehälters befestigt. Dann wird die Welle der Wäschetrommel von vom in die Nabe des Läufers gesteckt, der über die Wälzlager bereits mit dem Ständer verbunden ist, und mit einer zentralen Schraube von hinten gesichert. Diese Arbeitsvorgänge sind denen der Befestigung eines Tragsterns und einer Riemenscheibe gemäß den bisher üblichen Waschmaschinen-Konstruktionen äußerst gleichartig, so daß vom Montagepersonal keine völlig anderen Arbeitsvorgänge erlernt werden müssen.In this way, the engine can also be fully assembled and tested in the engine supplier's factory. The appropriate assembly and testing aids are available there, so that precisely assembled motor assemblies can always be delivered to the washing machine factory. Here, this assembly can be mounted on the rear wall of the tub system instead of a cast support star otherwise usual at this point or in addition. To do this, the stator of the complete motor is attached to the rear wall of the tub by means of several screws. Then the shaft of the laundry drum from inserted into the hub of the rotor, which is already connected to the stand via the roller bearings, and secured from behind with a central screw. These operations are extremely similar to those of attaching a support star and a pulley in accordance with the washing machine constructions which have been customary to date, so that no completely different operations have to be learned by the assembly personnel.

Wenn gemäß einer besonders vorteilhaften Ausgestaltung der erfindungsgemäßen Antriebseinrichtung Teile des Läufers zur Unterstützung einer bei seiner Drehbewegung entstehenden Luftbewegung ausgebildet sind, kann der Läufer bereits bei geringer Drehbewegung, z.B. bei Waschdrehzahl, genügend Kühlluft für die Ständerwicklungen produzieren. Dazu kann man sich beispielsweise einer speichenartigen Ausformung der Läuferscheibe und einer lüfterartigen Gestaltung dieser Speichen bedienen.If, according to a particularly advantageous embodiment of the drive device according to the invention, parts of the rotor are designed to support an air movement which arises during its rotational movement, the rotor can be operated even with a slight rotational movement, e.g. at washing speed, produce enough cooling air for the stator windings. For this purpose, one can use, for example, a spoke-like shape of the rotor disk and a fan-like design of these spokes.

Wenn der Motor gemäß einer vorteilhaften Ausführungsform der Erfindung ein elektronisch kommutierter Gleichstrommotor ist, kann überdies die Wärmeentwicklung äußert gering gehalten werden. Wartungen sind nicht erforderlich (keine Kohlebürsten). Die Lebensdauer ist lediglich durch einen eventuellen Lagerverschleiß begrenzt.If, according to an advantageous embodiment of the invention, the motor is an electronically commutated direct current motor, the heat development can moreover be kept extremely low. Maintenance is not necessary (no carbon brushes). The service life is only limited by possible bearing wear.

In einer besonders vorteilhaften Weiterbildung der Erfindung ist der Läufer wenigstens teilweise aus einem ringförmigen Paket von Dynamoblechen und darauf angeordneten Dauermagnetsegmenten ausgestattet. Die Dauermagnetsegmente ergeben ein kraftvolles Drehmoment, und die Dynamobleche bilden einen besonders guten magnetischen Rückfluß. Die Herstellung der erforderlichen Blechpakete ist durch Automatisierung des Stapelverfahrens relativ unkompliziert und kostengünstig.In a particularly advantageous development of the invention, the rotor is at least partially equipped with an annular package of dynamo sheets and permanent magnet segments arranged thereon. The permanent magnet segments produce a powerful torque, and the dynamo plates form a particularly good magnetic reflux. The automation of the stacking process makes the production of the required laminated cores relatively uncomplicated and inexpensive.

Vorteilhafterweise sind die Polpakete des Ständers aus Dynamoblechen zusammengesetzt und tragen Spulen mit den Erregerwicklungen.The pole packs of the stator are advantageously composed of dynamo sheets and carry coils with the excitation windings.

Zur erleichterten und reproduzierbar genauen Montage kann die zentrierte Verbindung des Läufers drehfest an der Welle durch eine formschlüssige Profilwellen-, Profilnaben-, Paßfeder-, Kegel- oder Keilnutverbindung ergänzt sein.For easier and reproducibly precise assembly, the centered connection of the rotor can be supplemented in a rotationally fixed manner on the shaft by a positive profile shaft, profile hub, feather key, cone or keyway connection.

Der Motor kann gemäß einer weiteren vorteilhaften Ausführungsform der Erfindung als sogenannter geschalteter Reluktanzmotor ausgebildet sein. In diesem Fall besteht der Läufer aus einem ferromagnetisch relativ schlecht leitenden Material. Der Aufbau des Ständers ist mit dem des elektronisch kommutierten Gleichstrommotors vergleichbar. Der Vorteil besteht insbesondere in einer kostengünstigeren Gestaltung des Läufers (keine teuren Magnetwerkstoffe).According to a further advantageous embodiment of the invention, the motor can be designed as a so-called switched reluctance motor. In this case, the rotor consists of a ferromagnetic material that is relatively poorly conductive. The structure of the stator is comparable to that of the electronically commutated DC motor. The advantage is in particular a more cost-effective design of the rotor (no expensive magnetic materials).

Anhand eines in der Zeichnung dargestellten Ausführungsbeispiels ist die Erfindung nachstehend erläutert. Es zeigen

Fig.1
eine schematische Darstellung eines Waschmaschinen-Laugenbehälters mit einer innenliegend horizontal gelagerten Wäschetrommel, deren Antriebswelle gemeinsam mit der Nabe der Läuferglocke in der Lagerhülse des Ständers gelagert ist und
Fig. 2
eine vergrößerte und teilweise geschnitten dargestellte Detail-Ansicht des an der Rückwand montierten Motors gemäß Fig. 1.
The invention is explained below using an exemplary embodiment shown in the drawing. Show it
Fig. 1
a schematic representation of a washing machine tub with an internally horizontally mounted laundry drum, the drive shaft is mounted together with the hub of the rotor bell in the bearing sleeve of the stand and
Fig. 2
an enlarged and partially sectioned detailed view of the motor mounted on the rear wall of FIG. 1st

Der Laugenbehälter 1 ist auf hier nicht näher dargestellte Weise in einem ebenfalls nicht dargestellten Gehäuse einer Waschmaschine schwingend gelagert. An seiner Vorderwand 2 hat er eine Öffnung 3 zum Be- und Entladen der Wäschetrommel 4, die in der Rückwand 6 des Laugenbehälters 1 um die horizontal liegende Achse 5 drehbar gelagert ist. Dazu dient die Welle 7, die an der Rückwand 8 der Wäschetrommel 4 drehfest mit ihr verbunden ist.The tub 1 is swingingly mounted in a housing of a washing machine, also not shown, in a manner not shown here. On its front wall 2 it has an opening 3 for loading and unloading the laundry drum 4, which is rotatably mounted in the rear wall 6 of the tub 1 about the horizontal axis 5. For this purpose, the shaft 7, which is rotatably connected to the rear wall 8 of the laundry drum 4.

An der Rückwand 6 des Laugenbehälters 1 ist ein Motor 9 montiert, dessen Ständertragteil 10 über den Flansch 11 drehfest mit der Rückwand 6 verbunden ist. An der rückwärtigen Fläche des Ständertragteils 10 sind mehrere Ständerwicklungen 12 verteilt und korrespondieren während der Drehung des Läufers 13 abwechselnd mit dessen Polen 14, die hier aus Permanentmagneten bestehen und ebenfalls segmentartig am Umfang des Läufers 13 verteilt sind. Der magnetische Rückfluß der Magnetsegmente 14 wird über ein in den Glockenflansch 15 eingelegtes Paket von Dynamoblechen 16 gebildet. Dadurch kann der Motor seine Antriebsmomente unmittelbar über den Wellenzapfen 7 in die Wäschetrommel 4 einleiten. Dabei nimmt der Ständer 10 des Motors wie ein durch ihn ersetzter Tragstern auch alle Lagerkräfte auf.A motor 9 is mounted on the rear wall 6 of the tub 1, the stand supporting part 10 of which is connected to the rear wall 6 in a rotationally fixed manner via the flange 11. A plurality of stator windings 12 are distributed on the rear surface of the stator support part 10 and, during the rotation of the rotor 13, alternately correspond to its poles 14, which here consist of permanent magnets and are also distributed in segments on the circumference of the rotor 13. The magnetic return flow of the magnet segments 14 is formed by a packet of dynamo sheets 16 inserted into the bell flange 15. As a result, the motor can introduce its drive torques directly into the washing drum 4 via the shaft journal 7. The stator 10 of the motor, like a supporting star replaced by it, also absorbs all bearing forces.

Gemäß Fig. 2 ist die Rückwand 8 der Wäschetrommel 4 mit einem Tragstern 17 versteift, dessen Nabe 18 mit einem Wellenzapfen 7 drehfest verbunden ist. Das Ständertragteil 10 trägt an seinem Außenumfang mehrere, vorzugsweise drei, um den Umfang des Laugenbehälters 1 verteilt angeordnete Befestigungsaugen 23, die mittels Schrauben 24 über an den Laugenbehälter 1 angeschweißte Laschen 25 eine feste Verbindung zum Laugenbehälter ergeben. Das Ständertragteil 10 ist an einer Montagescheibe 20 verschraubt (Schrauben 19), die ihrerseits an der Rückwand 6 mit dem Laugenbehälters 1 verschraubt ist (Schrauben 24). Anders als in diesem Beispiel kann das Ständertragteil 10 zusammen mit der Montagescheibe 20 einteilig ausgeführt sein. Dann würde die gesonderte Verschraubung des Lagerteils 21 für die Ständerpole (bestehend aus Wicklungen 12 und Blechpaketen 32) mit der Montagescheibe 20 entfallen.2, the rear wall 8 of the laundry drum 4 is stiffened with a support star 17, the hub 18 of which is connected in a rotationally fixed manner to a shaft journal 7. The stand supporting part 10 carries on its outer circumference a plurality, preferably three, of fastening eyes 23 which are distributed around the circumference of the tub 1 and which provide a fixed connection to the tub by screws 24 via tabs 25 welded to the tub 1. The stand support part 10 is screwed to a mounting disk 20 (screws 19), which in turn is screwed to the tub 1 on the rear wall 6 (screws 24). In contrast to this example, the stand supporting part 10 can be made in one piece together with the mounting disk 20. Then the separate screwing of the bearing part 21 for the stator poles (consisting of windings 12 and laminated cores 32) to the mounting disc 20 would be omitted.

Die Lagerhülse 22 des Ständertragteils 10 bildet Lagersitze 26 und 27 für Wälzlager 28 und 29, deren Innenringe mit einer guten Passung auf den Wellenzapfen 7 der Wäschetrommel 4 aufgesteckt sind. Am äußeren Ende ist die Welle 7 in die Nabe 31 des Läufers 13 gesteckt und mittels einer zentralen Schraube 30 gesichert, so daß sie den Läufer 13 über dessen Nabe 31 und die Innenringe der Wälzlager 28 und 29 drehfest mit der Wäschetrommel 4 verbindet.The bearing sleeve 22 of the stand supporting part 10 forms bearing seats 26 and 27 for rolling bearings 28 and 29, the inner rings of which are fitted onto the shaft journal 7 of the washing drum 4 with a good fit are. At the outer end, the shaft 7 is inserted into the hub 31 of the rotor 13 and secured by means of a central screw 30, so that it connects the rotor 13 to the laundry drum 4 in a rotationally fixed manner via its hub 31 and the inner rings of the roller bearings 28 and 29.

Die Läuferscheibe 13 ist zur besseren Lüftung und Kühlung der Ständerpole zwischen ihrer Nabe 22 und dem als Tragring für die Magnetsegmente 14 dienenden Glockenflansch 15 mit Durchbrüchen 33 ausgestattet. Diese Durchbrüche können vorteilhafterweise an ihren Kanten so geformt sein, daß der Zugang von Kühlluft durch diese Durchbrüche hindurch im Sinne einer Ventilatorwirkung unterstützt wird. Zur Verbesserung der Kühlwirkung können an den Durchbrüchen oder in deren Nähe noch sogenannte Wirbler angebracht sein, die für eine Verwirbelung der Kühlluft sorgen, damit sie besseren Kontakt mit den Ständerwicklungen erhält.The rotor disk 13 is equipped with openings 33 for better ventilation and cooling of the stator poles between its hub 22 and the bell flange 15 serving as a support ring for the magnetic segments 14. These openings can advantageously be shaped at their edges so that the access of cooling air through these openings is supported in the sense of a fan effect. To improve the cooling effect, so-called whirlers can be attached to the openings or in the vicinity thereof, which swirl the cooling air so that it receives better contact with the stator windings.

Der Motor ist hier als elektronisch kommutierter Gleichstrommotor ausgebildet. Er kann aber auch als sogenannter geschalteter Reluktanzmotor ausgeführt werden. In diesem Fall besteht zumindest der Flansch des Läufers bzw. dessen innere Auflage aus einem ferromagnetisch relativ schlecht leitenden Material. Der Aufbau des Ständers ist mit dem eines elektronisch kommutierten Gleichstrommotors vergleichbar. Der Vorteil des Reluktanzmotors besteht insbesondere in einer kostengünstigeren Gestaltung des Läufers (keine teuren Magnetwerkstoffe).The motor is designed here as an electronically commutated DC motor. However, it can also be designed as a so-called switched reluctance motor. In this case, at least the flange of the rotor or its inner support consists of a ferromagnetic material that is relatively poorly conductive. The structure of the stator is comparable to that of an electronically commutated DC motor. The advantage of the reluctance motor is, in particular, a more cost-effective design of the rotor (no expensive magnetic materials).

Zur besseren Verdrehsicherung zwischen dem Läufer 13 und der Welle 7 kann die Verschraubung 30 des Läufers 13 an der Welle 7 durch eine nicht dargestellte Profilwellen-, Profilnaben-, Paßfeder-, Kegel- oder Keilnutverbindung formschlüssig ergänzt sein.For a better protection against rotation between the rotor 13 and the shaft 7, the screw connection 30 of the rotor 13 on the shaft 7 can be positively supplemented by a profile shaft, profile hub, feather key, cone or keyway connection, not shown.

Claims (7)

Antriebsvorrichtung für eine von vorn beschickbare Waschmaschine mit einer innerhalb einer Lagerhülse eines an der Rückwand eines Laugenbehälters angebrachten, steifen Tragteils über eine wenigstens annähernd horizontal liegende Welle fliegend gelagerten Wäschetrommel, die durch einen ebenfalls an der Rückseite des Laugenbehälters angebrachten, flachen Motor direkt angetrieben ist, dadurch gekennzeichnet, daß der Ständer (10) des Motors (9) an dem steifen Tragteil oder anstelle des steifen Tragteils mit der Rückwand (6) des Laugenbehälters (1) verbunden ist und eine zentrale Lagerhülse (26) für die Welle (7) der Wäschetrommel (4) und für eine die Welle umfassende Nabe (31) des Läufers aufweist, daß am äußeren Ende der Welle die Nabe (31) des Läufers (13), der zwischen seiner Nabe und der Umfangspartie eine Vielzahl von Öffnungen und an seinem Umfang einen zum Laugenbehälter (1) weisenden, glockenartigen Flansch aufweist, zentriert befestigt ist und daß der Läufer mit seinen am Innenumfang des glockenförmigen Flansches verteilten magnetisierbaren Polen (14) über einen minimalen Luftspalt den am Ständer (10) verteilten, zur Aufnahme von Erregerwicklungen (12) des Ständers (10) vorgesehenen Blechpaketen (32) von außen gegenübersteht.Drive device for a washing machine which can be loaded from the front, with a washing drum which is mounted within a bearing sleeve of a rigid support part which is attached to the rear wall of a tub, via an at least approximately horizontally lying shaft and which is driven directly by a flat motor which is also attached to the rear of the tub, characterized in that the stator (10) of the motor (9) on the rigid support member or instead of the rigid support member is connected to the rear wall (6) of the tub (1) and a central bearing sleeve (26) for the shaft (7) of the Laundry drum (4) and for a hub (31) of the rotor comprising the shaft, that at the outer end of the shaft, the hub (31) of the rotor (13), between its hub and the peripheral part, a plurality of openings and on its periphery has a bell-shaped flange facing the tub (1), is attached in the center and that the Lä Shore with its magnetizable poles (14) distributed on the inner circumference of the bell-shaped flange has a minimal air gap opposite the sheet metal packages (32) distributed on the stator (10) and intended for receiving excitation windings (12) of the stator (10) from the outside. Antriebsvorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß Teile des Läufers (13) zur Unterstützung einer bei seiner Drehbewegung entstehenden Luftbewegung ausgebildet sind.Drive device according to claim 1, characterized in that parts of the rotor (13) are designed to support an air movement occurring during its rotational movement. Antriebsvorrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß der Motor (9) ein elektronisch kommutierter Gleichstrommotor ist.Drive device according to claim 1 or 2, characterized in that the motor (9) is an electronically commutated direct current motor. Antriebsvorrichtung nach Anspruch 3, dadurch gekennzeichnet, daß der Läufer (13) wenigstens teilweise aus einem ringförmigen Paket (16) von Dynamoblechen und darauf angeordneten Dauermagnetsegmenten (14) besteht.Drive device according to claim 3, characterized in that the rotor (13) at least partially consists of an annular packet (16) of dynamo sheets and permanent magnet segments (14) arranged thereon. Antriebsvorrichtung nach Anspruch 3 oder 4, dadurch gekennzeichnet, daß die Polpakete (32) des Ständers (10) aus Dynamoblechen zusammengesetzt sind und Spulen (12) mit den Erregerwicklungen tragen.Drive device according to claim 3 or 4, characterized in that the pole packs (32) of the stator (10) are composed of dynamo sheets and carry coils (12) with the excitation windings. Antriebsvorrichtung nach einem der Ansprüche 1,2, 4 oder 5, dadurch gekennzeichnet, daß der Motor ein geschalteter Reluktanzmotor ist.Drive device according to one of claims 1, 2, 4 or 5, characterized in that the motor is a switched reluctance motor. Antriebsvorrichtung nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, daß die zentrierte Verbindung (30) des Läufers (13) an der Welle (7) durch eine Profilwellen-, Profilnaben-, Paßfeder-, Kegel- oder Keilnutverbindung formschlüssig drehfest ist.Drive device according to one of the preceding claims, characterized in that the centered connection (30) of the rotor (13) on the shaft (7) is non-rotatably by a profile shaft, profile hub, feather key, cone or keyway connection.
EP96118606A 1995-12-20 1996-11-19 Driving device for a front loading washing machine Expired - Lifetime EP0780507B1 (en)

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DE19547745A DE19547745A1 (en) 1995-12-20 1995-12-20 Drive device for a washing machine that can be loaded from the front
DE19547745 1995-12-20

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EP0780507A2 true EP0780507A2 (en) 1997-06-25
EP0780507A3 EP0780507A3 (en) 1998-07-15
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EP (1) EP0780507B1 (en)
JP (1) JP3863612B2 (en)
KR (1) KR100427442B1 (en)
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AT (1) ATE229584T1 (en)
AU (1) AU720902B2 (en)
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DE (2) DE19547745A1 (en)
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Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998056974A1 (en) * 1997-06-12 1998-12-17 BSH Bosch und Siemens Hausgeräte GmbH Drive device for a washing machine
GB2332212A (en) * 1997-07-11 1999-06-16 Toshiba Kk Drum type washing machine
TR199802582A3 (en) * 1997-12-13 1999-10-21 Fhp Motors Gmbh Transport safety for an engine structure.
EP0953668A1 (en) * 1998-04-30 1999-11-03 Miele & Cie. GmbH & Co. Method for producing a laundry treatment apparatus in particular mounting of a drive motor, and a laundry treatment apparatus
FR2782856A1 (en) * 1998-09-02 2000-03-03 Peugeot ELECTRIC MOTOR INTENDED TO BE COUPLED TO A TRANSMISSION, ESPECIALLY OF A MOTOR VEHICLE
WO2000070138A1 (en) * 1999-05-17 2000-11-23 BSH Bosch und Siemens Hausgeräte GmbH Drive device for a washing machine
WO2000070139A1 (en) * 1999-05-17 2000-11-23 BSH Bosch und Siemens Hausgeräte GmbH Drive device for a washing machine
US6539753B1 (en) 1999-03-31 2003-04-01 Kabushiki Kaisha Toshiba Drum type washing machine
US7596973B2 (en) 1999-10-18 2009-10-06 Lg Electronics Inc. Structure of driving unit in drum type washing machine
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Families Citing this family (49)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19724475B4 (en) * 1997-06-10 2010-08-05 BSH Bosch und Siemens Hausgeräte GmbH Drive device for a front-loadable washing machine
DE19726246A1 (en) * 1997-06-20 1998-12-24 Bosch Siemens Hausgeraete Drive device for a washing machine
JP3042494B2 (en) * 1998-05-21 2000-05-15 松下電器産業株式会社 Washing machine
DE19859568B4 (en) * 1998-12-22 2007-06-28 BSH Bosch und Siemens Hausgeräte GmbH Drive device for a front-loadable washing machine
DE19859567A1 (en) * 1998-12-22 2000-06-29 Bsh Bosch Siemens Hausgeraete Drive device for a washing machine that can be loaded from the front
EP1118703B1 (en) * 1999-03-10 2006-01-18 Kabushiki Kaisha Toshiba Drum type washing machine
DE19911139A1 (en) 1999-03-12 2000-09-14 Bsh Bosch Siemens Hausgeraete Drive device for a washing machine that can be loaded from the front
TW472094B (en) 1999-05-19 2002-01-11 Toshiba Corp Rolling drum type washing machine
EP1502984B1 (en) * 1999-10-18 2012-02-01 LG Electronics, Inc. Structure of driving unit in drum type washing machine
AU2005200971B2 (en) * 1999-10-18 2009-05-21 Lg Electronics Inc. A driving unit for a drum type washing machine
KR100617217B1 (en) * 1999-10-19 2006-08-31 엘지전자 주식회사 structure of driving unit in drum-type washing machine
KR100617215B1 (en) * 1999-10-19 2006-08-31 엘지전자 주식회사 structure of driving unit in drum-type washing machine
AU753411B2 (en) 1999-10-19 2002-10-17 Lg Electronics Inc. Structure of driving unit in drum type washing machine
KR100617218B1 (en) * 1999-10-19 2006-08-31 엘지전자 주식회사 structure of driving unit in drum-type washing machine
KR100617213B1 (en) * 1999-10-19 2006-08-31 엘지전자 주식회사 structure of driving unit in drum-type washing machine
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DE19960501A1 (en) 1999-12-15 2001-06-21 Bsh Bosch Siemens Hausgeraete Suds container for a washing machine
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DE19963703A1 (en) * 1999-12-29 2001-07-05 Bsh Bosch Siemens Hausgeraete Drive device for a washing machine
DE10060633A1 (en) * 2000-12-06 2002-06-13 Bsh Bosch Siemens Hausgeraete Drum washing machine has drum whose angular position during reversing phase can be predefined by activating winding legs of motor with associated fixing of rotor in defined position
EP1249918B1 (en) * 2001-04-09 2005-10-26 Kabushiki Kaisha Moric Rotor for a permanent magnet type electrical machine
US6741007B2 (en) * 2001-07-27 2004-05-25 Beacon Power Corporation Permanent magnet motor assembly having a device and method of reducing parasitic losses
ATE452014T1 (en) * 2001-08-01 2010-01-15 Sumitomo Shi Demag Plastics Ma ELECTROMECHANICAL LINEAR DRIVE
KR20040026887A (en) * 2002-09-26 2004-04-01 엘지전자 주식회사 Tub assembly of drum-type washing machine
KR20040046955A (en) * 2002-11-28 2004-06-05 엘지전자 주식회사 The structure of drum in washer
EP1428924B1 (en) 2002-12-10 2008-01-16 LG Electronics Inc. Drum type washing machine
US7997103B2 (en) 2002-12-10 2011-08-16 Lg Electronics Inc. Tub having structurally strengthened rear wall and washing machine with the same therein
KR100464054B1 (en) * 2002-12-27 2005-01-03 엘지전자 주식회사 Drum type washing machine with united cabinet/tub
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US7342334B2 (en) * 2004-10-29 2008-03-11 Emerson Electric Co. Insulated stator with wire routing element
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US8621895B2 (en) * 2005-09-30 2014-01-07 Lg Electronics Inc. Drum type washing machine
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CN107482874B (en) * 2017-09-18 2019-11-26 安徽沃弗电力科技有限公司 A kind of permanent-magnet speed governor that air gap is constant
US11081930B2 (en) 2017-11-29 2021-08-03 Hamilton Sundstrand Corporation Kinetic energy storage with a switched reluctance machine
US11050322B2 (en) 2017-12-26 2021-06-29 Hamilton Sundstrand Corporation Flywheel energy storage with PM, induction, or variable reluctance machine

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3927426A1 (en) 1989-08-19 1991-02-21 Mulfingen Elektrobau Ebm DRIVE UNIT FOR A LAUNDRY TREATMENT MACHINE
DE4341832A1 (en) 1993-12-08 1995-06-14 Licentia Gmbh Washing machine

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE944157C (en) * 1945-01-04 1956-06-07 Siemens Ag Swing arrangement
NL291769A (en) * 1962-04-19
US3254545A (en) * 1963-10-08 1966-06-07 Fichtel & Sachs Ag Dual-speed transmission for a washing machine
DE3275393D1 (en) * 1981-12-18 1987-03-12 Cerac Inst Sa Washing machine
US4712035A (en) * 1985-11-12 1987-12-08 General Electric Company Salient pole core and salient pole electronically commutated motor
NZ215389A (en) * 1986-03-06 1992-02-25 Fisher & Paykel Washing machine: spin tub connected to drive at low water level
US4998052A (en) * 1989-07-28 1991-03-05 General Electric Company Gearless direct drive switched reluctance motor for laundry application
DE4335966C2 (en) * 1993-10-21 1998-07-16 Fhp Motors Gmbh Drive device for a washing machine or similar machine with a brushless DC motor

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3927426A1 (en) 1989-08-19 1991-02-21 Mulfingen Elektrobau Ebm DRIVE UNIT FOR A LAUNDRY TREATMENT MACHINE
DE4341832A1 (en) 1993-12-08 1995-06-14 Licentia Gmbh Washing machine

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998056974A1 (en) * 1997-06-12 1998-12-17 BSH Bosch und Siemens Hausgeräte GmbH Drive device for a washing machine
GB2332212A (en) * 1997-07-11 1999-06-16 Toshiba Kk Drum type washing machine
GB2332212B (en) * 1997-07-11 2000-09-20 Toshiba Kk Drum type washing machine
US6148647A (en) * 1997-07-11 2000-11-21 Kabushiki Kaisha Toshiba Drum type washing machine
TR199802582A3 (en) * 1997-12-13 1999-10-21 Fhp Motors Gmbh Transport safety for an engine structure.
EP0953668A1 (en) * 1998-04-30 1999-11-03 Miele & Cie. GmbH & Co. Method for producing a laundry treatment apparatus in particular mounting of a drive motor, and a laundry treatment apparatus
FR2782856A1 (en) * 1998-09-02 2000-03-03 Peugeot ELECTRIC MOTOR INTENDED TO BE COUPLED TO A TRANSMISSION, ESPECIALLY OF A MOTOR VEHICLE
EP0984548A1 (en) * 1998-09-02 2000-03-08 Automobiles Peugeot Electric motor for engagement with a transmission, especially with a motor vehicle transmission
US6539753B1 (en) 1999-03-31 2003-04-01 Kabushiki Kaisha Toshiba Drum type washing machine
WO2000070138A1 (en) * 1999-05-17 2000-11-23 BSH Bosch und Siemens Hausgeräte GmbH Drive device for a washing machine
US6477869B2 (en) 1999-05-17 2002-11-12 BSH Bosch und Siemens Hausgeräte GmbH Drive apparatus for a washing machine
WO2000070139A1 (en) * 1999-05-17 2000-11-23 BSH Bosch und Siemens Hausgeräte GmbH Drive device for a washing machine
US6655177B2 (en) 1999-05-17 2003-12-02 BSH Bosch und Siemens Hausgeräte GmbH Drive apparatus for a washing machine
US7596973B2 (en) 1999-10-18 2009-10-06 Lg Electronics Inc. Structure of driving unit in drum type washing machine
US8087148B2 (en) 1999-10-18 2012-01-03 Lg Electronics Inc. Structure of driving unit in drum type washing machine
EP2755305A3 (en) * 2013-01-14 2018-02-28 dormakaba Deutschland GmbH Drive unit, in particular for a revolving door, with an electronically commuted multiple-pole motor

Also Published As

Publication number Publication date
TR199601023A3 (en) 1997-07-21
DE19547745A1 (en) 1997-06-26
EP0780507B1 (en) 2002-12-11
KR100427442B1 (en) 2004-07-23
AU720902B2 (en) 2000-06-15
DE59609971D1 (en) 2003-01-23
ATE229584T1 (en) 2002-12-15
ES2188712T3 (en) 2003-07-01
KR970043521A (en) 1997-07-26
AU7540496A (en) 1997-06-26
BR9606097A (en) 1998-11-03
JPH09182369A (en) 1997-07-11
JP3863612B2 (en) 2006-12-27
US5862686A (en) 1999-01-26
TR199601023A2 (en) 1997-07-21
EP0780507A3 (en) 1998-07-15
CN1180260A (en) 1998-04-29
CN1230964C (en) 2005-12-07

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