EP1158086A2 - Laundry treatment machine with a direct driving motor - Google Patents
Laundry treatment machine with a direct driving motor Download PDFInfo
- Publication number
- EP1158086A2 EP1158086A2 EP01111084A EP01111084A EP1158086A2 EP 1158086 A2 EP1158086 A2 EP 1158086A2 EP 01111084 A EP01111084 A EP 01111084A EP 01111084 A EP01111084 A EP 01111084A EP 1158086 A2 EP1158086 A2 EP 1158086A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- stator
- rotor
- laundry treatment
- air gap
- treatment machine
- 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
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Classifications
-
- 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
Definitions
- the invention relates to a laundry treatment device (washing machine, washer dryer or Dryer) with an overhung drum, in which a shaft pivot in two spaced radial bearings, and with a drive motor in the form of a direct drive, one with the permanent magnet rotor connected to the shaft journal and one with includes a bearing seat connected stator, the rotor and stator concentric with each other arranged and spaced from each other by an air gap.
- a laundry treatment machine of the type mentioned at the outset is from, for example WO 98/36123 A1 known.
- a washing machine is already known from DE 38 19 651 A1, in which without use the usual intermediate drive (drive belt, pulley) directly into the laundry drum is driven.
- the rotor forms the rotary motion transmission part to the drum of the washing machine.
- a drive motor is known from WO 98/36123 A1 mentioned at the beginning and from DE 43 35 966 A1 known for washing machines, which one to be releasably connected to the drive shaft
- Permanent magnet rotor and a stator to be detachably connected to the bearing seat includes.
- Hard ferrites are used as permanent magnets in such a rotor develop large magnetic forces and are very brittle. It comes with one Laundry treatment machine through wear of the bearings to an increasing bearing play, can lower the drum. This results in the direct drive described above, that the air gap at the bottom gets smaller. In extreme cases, this can lead to the touch of Guide the stator and rotor, in which case the permanent magnets and possibly also the stator are destroyed would.
- a sensor is in the form of a washing machine of a Hall IC compared to the magnet of a permanent magnet rotor Direct drive rotor known. This sensor is used to measure the rotational speed of the Drum used.
- the invention thus poses the problem with a laundry treatment device described at the outset eccentricity between the rotor and stator due to bearing wear recognize and as a result a warning of the user and / or an interruption of continued operation to enable.
- At least one part assigned to the stator is Sensor means arranged approximately in the six o'clock position of the stator. At this point The reduction in the air gap is strongest and can therefore be sensed in a simple manner.
- the contact sensor is arranged on the stator closed conductor loop formed by at least one arranged on the rotor Separating element is interrupted permanently. This creates a permanent one Signal generated, which can be easily processed.
- the drive motor of a laundry treatment machine is a direct drive formed, the rotor with the shaft journal of the drum and the stator with the bearing seat of the drum, for example a bearing cross on the tub Washing machine, is connected.
- the rotor is a permanent magnet rotor and an external rotor formed and surrounds the stator poles concentrically to form an air gap.
- the above Construction is, for example, from WO 98/36123 A1 or from EP 0 953 668 A1 known and therefore not shown or explained in more detail.
- the rotor shown in Figures 1 to 4 consists of a rotor bell (1) in the form of a Pot-shaped deep-drawn part or aluminum injection molded part, which on the inside one annular iron yoke (2) and the permanent magnets (3) attached to it as Carries rotor poles.
- a pocket-shaped recesses (4) between the Iron yoke (2) and the bell (1) are one or more separating elements (5) as the first Sensor elements introduced frictionally and / or non-positively.
- the separating element (5, stamped and bent part or molded part, see Figure 5) is pressed against the iron yoke (2) until it stops.
- two lateral support ribs (6) are arranged supported on the magnet (3).
- the roof-shaped geometry of the upper part (8) protrudes its tip approx. 0.1-0.15mm compared to the magnets in the air gap (9).
- the stator of the direct drive is shown in FIGS. 1 and 6.
- the stator laminated core is in the essentially ring-shaped. It has a series of outward facing pronounced stator poles (10) with stator windings (11, not shown in Figure 6) are provided.
- the windings (11) are opposed to plastic bobbins (12) the stator laminated core is insulated.
- the tooth heads projecting outwards from the coil formers (12) (13) of the stator poles (10) are rounded.
- the separating element (5) is opposite a further sensor element in the form of a closed conductor loop on the coil former (12) (14) attached. This conductor loop (14) is form-fitting with the help of a dovetail guide (15) attached to the coil body (12) and also protrudes about 0.1-0.15mm in the Air gap (9) into it.
- the conductor loop (14) is severed, as a result of which a signal is sent to the device control. This signal can be converted into a warning display and / or via the controller Stop the device.
- the conductor loop (14) is part of a conductor track system (16), which also supplies power to the stator and other sensors (thermal switch etc.) contains and is integrated on a contact carrier (17) (see FIGS. 7 and 8). This is in turn fixed to the stator by means of fastening eyes (18).
- the closed conductor loop (14) there can be an open conductor track, a piezo element or a microswitch can be used as the second sensor element.
- the separating element must then be modified accordingly.
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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)
- Control Of Stepping Motors (AREA)
- Treatment Of Fiber Materials (AREA)
- Permanent Magnet Type Synchronous Machine (AREA)
Abstract
Description
Die Erfindung betrifft ein Wäschebehandlungsgerät (Waschmaschine, Waschtrockner oder Trockner) mit einer fliegend gelagerten Trommel, bei der ein Wellenzapfen drehbar in zwei beabstandeten Radiallagern geführt ist, und mit einem Antriebsmotor in Form eines Direktantriebs, der einen mit dem Wellenzapfen verbundenen Permanentmagnet-Rotor und einen mit einem Lagersitz verbundenen Stator beinhaltet, wobei Rotor und Stator konzentrisch zueinander angeordnet und durch einen Luftspalt voneinander beabstandet sind.The invention relates to a laundry treatment device (washing machine, washer dryer or Dryer) with an overhung drum, in which a shaft pivot in two spaced radial bearings, and with a drive motor in the form of a direct drive, one with the permanent magnet rotor connected to the shaft journal and one with includes a bearing seat connected stator, the rotor and stator concentric with each other arranged and spaced from each other by an air gap.
Eine Wäschebehandlungsmaschine der eingangs genannten Art ist beispielsweise aus der WO 98/36123 A1 bekannt.A laundry treatment machine of the type mentioned at the outset is from, for example WO 98/36123 A1 known.
Aus der DE 38 19 651 A1 ist bereits eine Waschmaschine bekannt, bei der ohne Verwendung des üblichen Zwischentriebs (Antriebsriemen, Riemenscheibe) die Wäschetrommel direkt angetrieben wird. Bei diesen Antrieben bildet der Rotor das Drehbewegungsübertragungsteil zur Trommel der Waschmaschine.A washing machine is already known from DE 38 19 651 A1, in which without use the usual intermediate drive (drive belt, pulley) directly into the laundry drum is driven. In these drives, the rotor forms the rotary motion transmission part to the drum of the washing machine.
Aus der eingangs genannten WO 98/36123 A1 und aus der DE 43 35 966 A1 ist ein Antriebsmotor für Waschmaschinen bekannt, welcher einen mit der Antriebswelle lösbar zu verbindenden Permanentmagnet-Rotor und einen mit dem Lagersitz lösbar zu verbindenden Stator beinhaltet. Als Permanentmagnete werden bei einem solchen Rotor Hartferrite verwendet, die große magnetische Kräfte entwickeln und sehr spröde sind. Kommt es bei einer solchen Wäschebehandlungsmaschine durch Verschleiß der Lager zu einem zunehmenden Lagerspiel, kann sich die Trommel absenken. Dies hat bei dem vorbeschriebenen Direktantrieb zur Folge, dass sich der Luftspalt an der Unterseite verkleinert. Im Extremfall kann das zur Berührung von Stator und Rotor führen, wobei dann die Permanentmagnete und evtl. auch der Stator zerstört würden.A drive motor is known from WO 98/36123 A1 mentioned at the beginning and from DE 43 35 966 A1 known for washing machines, which one to be releasably connected to the drive shaft Permanent magnet rotor and a stator to be detachably connected to the bearing seat includes. Hard ferrites are used as permanent magnets in such a rotor develop large magnetic forces and are very brittle. It comes with one Laundry treatment machine through wear of the bearings to an increasing bearing play, can lower the drum. This results in the direct drive described above, that the air gap at the bottom gets smaller. In extreme cases, this can lead to the touch of Guide the stator and rotor, in which case the permanent magnets and possibly also the stator are destroyed would.
Aus der GB 2 332 212 A ist bei einer Waschmaschine die Anordnung eines Sensors in Form eines Hall IC's gegenüber den Magneten eines als Permanentmagnetrotor ausgebildeten Direktantrieb-Rotors bekannt. Dieser Sensor wird zur Messung der Drehgeschwindigkeit der Trommel verwendet.From GB 2 332 212 A the arrangement of a sensor is in the form of a washing machine of a Hall IC compared to the magnet of a permanent magnet rotor Direct drive rotor known. This sensor is used to measure the rotational speed of the Drum used.
Der Erfindung stellt sich somit das Problem, bei einem eingangs beschriebenen Wäschebehandlungsgerät eine durch Lagerverschleiß bedingte Exzentrität zwischen Rotor und Stator zu erkennen und als Folge eine Warnung des Benutzers und/oder eine Unterbrechung des Weiterbetriebes zu ermöglichen. The invention thus poses the problem with a laundry treatment device described at the outset eccentricity between the rotor and stator due to bearing wear recognize and as a result a warning of the user and / or an interruption of continued operation to enable.
Erfindungsgemäß wird dieses Problem durch ein Wäschebehandlungsgerät mit den Merkmalen des Patentanspruchs 1 gelöst. Vorteilhafte Ausgestaltungen und Weiterbildungen der Erfindung ergeben sich aus den nachfolgenden Unteransprüchen.According to the invention, this problem is solved by a laundry treatment device with the features of claim 1 solved. Advantageous refinements and developments of the invention result from the following subclaims.
Die mit der Erfindung erreichbaren Vorteile bestehen in der Möglichkeit, eine Exzentrität zwischen Rotor und Stator zu sensieren und auf diese vor der Zerstörung des Motors durch Austausch der Lager reagieren zu können. Im Fehlerfall kann vor einer möglichen Berührung zwischen Rotor und Stator das Sensorsignal an eine Steuerelektronik weitergegeben werden und von dieser als Warnsignal oder Abschaltung des Geräts weiterverarbeitet werden.The advantages that can be achieved with the invention are the possibility of an eccentricity between the rotor and the stator and sense them before the motor is destroyed Exchange of bearings to be able to react. In the event of an error, there may be a possible touch the sensor signal between the rotor and stator are passed on to control electronics and processed by this as a warning signal or switch-off of the device.
In einer vorteilhaften Ausführungsform ist mindestens ein dem Stator zugeordnetes Teil der Sensormittel annähernd in der Sechs-Uhr-Position des Stators angeordnet. An dieser Stelle ist Verringerung des Luftspaltes am stärksten und kann somit in einfacher Weise sensiert werden.In an advantageous embodiment, at least one part assigned to the stator is Sensor means arranged approximately in the six o'clock position of the stator. At this point The reduction in the air gap is strongest and can therefore be sensed in a simple manner.
In einer besonders vorteilhaften Ausführungsform ist der Kontaktsensor als am Stator angeordnete geschlossene Leiterschleife ausgebildet, welche durch mindestens ein am Rotor angeordnetes Trennelement dauerhaft unterbrochen wird. Hierdurch wird ein permanent vorhandenes Signal erzeugt, welches in einfacher Weise weiterverarbeitet werden kann.In a particularly advantageous embodiment, the contact sensor is arranged on the stator closed conductor loop formed by at least one arranged on the rotor Separating element is interrupted permanently. This creates a permanent one Signal generated, which can be easily processed.
Ein Ausführungsbeispiel der Erfindung ist in den Zeichnungen rein schematisch dargestellt und wird nachfolgend näher beschrieben. Es zeigt
- Figur 1
- einen Schnitt durch den Antriebsmotor einer erfindungsgemäß ausgebildeten Wäschebehandlungsmaschine (Rotor, Stator);
Figur 2- ausschnittsweise die Draufsicht auf den Rotor gemäß Figur 1;
Figur 3- den Rotor gemäß Figur 1 in perspektivischer Darstellung
- Figur 4
- einen Ausschnitt aus
Figur 3 im Bereich des Trennelements Figur 5- das Trennelement als Einzelheit
Figur 6- ausschnittsweise die perspektivische Darstellung eines Stators gemäß Figur 1
Figur 7- den Kontaktträger aus
Figur 6 in perspektivischer Darstellung von oben - Figur 8
- den Kontaktträger aus
Figur 6 in perspektivischer Darstellung von unten
- Figure 1
- a section through the drive motor of an inventive laundry treatment machine (rotor, stator);
- Figure 2
- sections of the top view of the rotor according to Figure 1;
- Figure 3
- the rotor of Figure 1 in perspective
- Figure 4
- a section of Figure 3 in the region of the separating element
- Figure 5
- the separating element as a detail
- Figure 6
- a perspective view of a stator according to FIG. 1
- Figure 7
- the contact carrier from Figure 6 in a perspective view from above
- Figure 8
- the contact carrier of Figure 6 in a perspective view from below
Der Antriebsmotor einer erfindungsgemäßen Wäschebehandlungsmaschine ist als Direktantrieb ausgebildet, wobei der Rotor mit dem Wellenzapfen der Trommel und der Stator mit dem Lagersitz der Trommel, beispielsweise einem Lagerkreuz am Laugenbehälter einer Waschmaschine, verbunden ist. Der Rotor ist als Permanentmagnet-Rotor und als Außenläufer ausgebildet und umgibt die Statorpole konzentrisch unter Bildung eines Luftspalts. (Der vorbeschriebene Aufbau ist beispielsweise aus der WO 98/36123 A1 oder aus der EP 0 953 668 A1 bekannt und deshalb nicht dargestellt oder näher erläutert.) The drive motor of a laundry treatment machine according to the invention is a direct drive formed, the rotor with the shaft journal of the drum and the stator with the bearing seat of the drum, for example a bearing cross on the tub Washing machine, is connected. The rotor is a permanent magnet rotor and an external rotor formed and surrounds the stator poles concentrically to form an air gap. (The above Construction is, for example, from WO 98/36123 A1 or from EP 0 953 668 A1 known and therefore not shown or explained in more detail.)
Der in den Figuren 1 bis 4 dargestellte Rotor besteht aus einer Rotorglocke (1) in Form eines topfförmigen Tiefziehteils oder Aluminiumspritzgussteils, welche auf ihrer Innenseite einen ringförmigen Eisenrückschluss (2) und die darauf befestigten Permanentmagnete (3) als Rotorpole trägt. In einer oder mehreren taschenförmigen Aussparungen (4) zwischen dem Eisenrückschluss (2) und der Glocke (1) sind ein oder mehrere Trennelemente (5) als erste Sensorelemente reib- und/oder kraftschlüssig eingebracht. Das Trennelement (5, Stanz-Biegeteil oder Formteil, s. Figur 5) wird bis auf Anschlag gegen den Eisenrückschluss (2) gedrückt. Zur Stabilisierung des vorderen Bereiches sind zwei seitliche Stützrippen (6) angeordnet, die sich am Magneten (3) abstützten. An den Seiten befindet sich eine Verzahnung (7), die das Element (5) in der Aussparung (4) hält. Die dachförmige Geometrie des Oberteiles (8) ragt mit seiner Spitze ca. 0,1-0,15mm gegenüber den Magneten in den Luftspalt (9).The rotor shown in Figures 1 to 4 consists of a rotor bell (1) in the form of a Pot-shaped deep-drawn part or aluminum injection molded part, which on the inside one annular iron yoke (2) and the permanent magnets (3) attached to it as Carries rotor poles. In one or more pocket-shaped recesses (4) between the Iron yoke (2) and the bell (1) are one or more separating elements (5) as the first Sensor elements introduced frictionally and / or non-positively. The separating element (5, stamped and bent part or molded part, see Figure 5) is pressed against the iron yoke (2) until it stops. To stabilize the front area, two lateral support ribs (6) are arranged supported on the magnet (3). On the sides there is a toothing (7) that the Holds element (5) in the recess (4). The roof-shaped geometry of the upper part (8) protrudes its tip approx. 0.1-0.15mm compared to the magnets in the air gap (9).
In den Figuren 1 und 6 ist der Stator des Direktantriebs dargestellt. Das Statorblechpaket ist im wesentlichen ringförmig ausgebildet. Es weist am Umfang eine Reihe von nach außen gerichteten, ausgeprägten Statorpolen (10) auf, die mit Statorwicklungen (11, in Figur 6 nicht dargestellt) versehen sind. Die Wicklungen (11) sind über Spulenkörper (12) aus Kunststoff gegen das Statorblechpaket isoliert. Die die Spulenkörper (12) nach außen überragenden Zahnköpfe (13) der Statorpole (10) sind abgerundet. Dem Trennelement (5) gegenüberliegend ist am Spulenkörper (12) ein weiteres Sensorelement in form einer geschlossenen Leiterschleife (14) angebracht. Diese Leiterschleife (14) ist formschlüssig mit Hilfe einer Schwalbenschwanzführung (15) am Spulenkörper (12) befestigt und ragt ebenfalls ca. 0,1-0,15mm in den Luftspalt (9) hinein.The stator of the direct drive is shown in FIGS. 1 and 6. The stator laminated core is in the essentially ring-shaped. It has a series of outward facing pronounced stator poles (10) with stator windings (11, not shown in Figure 6) are provided. The windings (11) are opposed to plastic bobbins (12) the stator laminated core is insulated. The tooth heads projecting outwards from the coil formers (12) (13) of the stator poles (10) are rounded. The separating element (5) is opposite a further sensor element in the form of a closed conductor loop on the coil former (12) (14) attached. This conductor loop (14) is form-fitting with the help of a dovetail guide (15) attached to the coil body (12) and also protrudes about 0.1-0.15mm in the Air gap (9) into it.
Bei einer Annäherung von Rotor und Stator durch Verkleinerung des Luftspaltes (9) wird die Leiterschleife (14) durchtrennt, wodurch ein Signal an die Gerätesteuerung abgegeben wird. Dieses Signal kann in eine Warnanzeige umgewandelt werden und/oder über die Steuerung zur Stillsetzung des Gerätes führen. Die Leiterschleife (14) ist Bestandteil eines Leiterbahnsystems (16), welches außerdem die Stromversorgung des Stators und anderer Sensoren (Thermoschalter usw. ) beinhaltet und ist auf einem Kontaktträger (17) integriert (s. Figur 7 und 8). Dieser ist wiederum mittels Befestigungsaugen (18) am Stator fixiert.When the rotor and stator come closer by reducing the air gap (9), the The conductor loop (14) is severed, as a result of which a signal is sent to the device control. This signal can be converted into a warning display and / or via the controller Stop the device. The conductor loop (14) is part of a conductor track system (16), which also supplies power to the stator and other sensors (thermal switch etc.) contains and is integrated on a contact carrier (17) (see FIGS. 7 and 8). This is in turn fixed to the stator by means of fastening eyes (18).
Anstelle der geschlossenen Leiterschleife (14) kann eine offene Leiterbahn, ein Piezoelement oder ein Mikroschalter als zweites Sensorelement verwendet werden. Das Trennelement muss dann dementsprechend modifiziert werden.Instead of the closed conductor loop (14) there can be an open conductor track, a piezo element or a microswitch can be used as the second sensor element. The separating element must then be modified accordingly.
Claims (8)
dadurch gekennzeichnet, dass mindestens ein dem Stator (10-13) zugeordnetes Teil der Sensormittel (14) annähernd in der Sechs-Uhr-Position des Stators (10-13) angeordnet ist.Laundry treatment device according to claim 1,
characterized in that at least one part of the sensor means (14) assigned to the stator (10-13) is arranged approximately in the six o'clock position of the stator (10-13).
gekennzeichnet durch einen die Entfernung zwischen Rotor (1-4) und Stator (10-13) ermittelnden optischen oder magnetischen Sensor.Laundry treatment machine according to claim 1 or 2,
characterized by an optical or magnetic sensor which determines the distance between the rotor (1-4) and the stator (10-13).
gekennzeichnet durch einen zwischen Rotor (1-4) und Stator (10-13) angeordneten Kontaktsensor.Laundry treatment machine according to claim 1 or 2,
characterized by a contact sensor arranged between the rotor (1-4) and the stator (10-13).
dadurch gekennzeichnet, dass der Kontaktsensor als am Stator (10-13) angeordneter Mikroschalter mit einem in den Luftspalt (9) ragenden Schaltstößel ausgebildet ist.Laundry treatment machine according to claim 4,
characterized in that the contact sensor is designed as a microswitch arranged on the stator (10-13) with a switching plunger projecting into the air gap (9).
dadurch gekennzeichnet, dass der Kontaktsensor als am Stator (10-13) angeordnete, in den Luftspalt (9) ragende offene Leiterschleife ausgebildet ist, welche durch eine am Rotor (1-4) angeordnete, in den Luftspalt (9) ragende Kontaktvorrichtung geschlossen wird. Laundry treatment machine according to claim 4,
characterized in that the contact sensor is designed as an open conductor loop arranged on the stator (10-13) and projecting into the air gap (9), which is closed by a contact device arranged on the rotor (1-4) and projecting into the air gap (9) .
dadurch gekennzeichnet, dass der Kontaktsensor als am Stator (10-13) angeordnetes, in den Luftspalt (9) ragendes Piezoelement ausgebildet ist, welches bei Berührung durch ein am Rotor angeordnetes Betätigungselement ein elektrisches Signal auslöst.Laundry treatment machine according to claim 4,
characterized in that the contact sensor is designed as a piezo element arranged on the stator (10-13) and projecting into the air gap (9), which triggers an electrical signal when touched by an actuating element arranged on the rotor.
dadurch gekennzeichnet, dass der Kontaktsensor als am Stator (10-13) angeordnete, in den Luftspalt (9) ragende geschlossene Leiterschleife (14) ausgebildet ist, welche durch mindestens ein am Rotor (1-4) angeordnetes, in den Luftspalt (9) ragendes Trennelement (5) dauerhaft unterbrochen wird.Laundry treatment machine according to claim 4,
characterized in that the contact sensor is designed as a closed conductor loop (14) which is arranged on the stator (10-13) and projects into the air gap (9) and which is at least one in the air gap (9) arranged on the rotor (1-4) protruding separating element (5) is permanently interrupted.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10025016 | 2000-05-23 | ||
DE10025016A DE10025016B4 (en) | 2000-05-23 | 2000-05-23 | Laundry treatment device with a drive motor in the form of a direct drive |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1158086A2 true EP1158086A2 (en) | 2001-11-28 |
EP1158086A3 EP1158086A3 (en) | 2002-09-18 |
EP1158086B1 EP1158086B1 (en) | 2005-09-07 |
Family
ID=7642930
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP01111084A Expired - Lifetime EP1158086B1 (en) | 2000-05-23 | 2001-05-09 | Laundry treatment machine with a direct driving motor |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP1158086B1 (en) |
AT (1) | ATE304074T1 (en) |
DE (2) | DE10025016B4 (en) |
ES (1) | ES2245332T3 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2006018473A2 (en) * | 2004-08-19 | 2006-02-23 | Abb Oy | Arrangement in an electrical machine |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102007017215B4 (en) | 2007-04-12 | 2017-01-12 | Schaeffler Technologies AG & Co. KG | Rotary direct drive |
DE102008046187A1 (en) * | 2008-09-06 | 2010-03-11 | Schaeffler Kg | Rotor i.e. external rotor, for washing machine-direct drive, has reinforcing structure comprising segment-like surface sections, which are alternately arranged and comprise axial distance increasing in radial direction |
DE102014206637A1 (en) * | 2014-04-07 | 2015-10-08 | BSH Hausgeräte GmbH | A method for producing a drum base for a laundry drum of a household appliance, laundry drum and household appliance |
DE102020212198A1 (en) | 2020-09-28 | 2022-03-31 | Brose Fahrzeugteile SE & Co. Kommanditgesellschaft, Würzburg | Contact device of a stator |
Citations (12)
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US3798504A (en) * | 1971-03-25 | 1974-03-19 | Maschf Augsburg Nuernberg Ag | Device for shutting off drive motors of rotating machine parts in case of overload and/or destruction of a machine part |
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US4334189A (en) * | 1978-12-08 | 1982-06-08 | Tetsuya Sato | Operation supervisory apparatus of canned motor |
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JPS6059942A (en) * | 1983-09-12 | 1985-04-06 | Toshiba Corp | Air gap monitor of rotary machine |
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Family Cites Families (1)
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JPH1128298A (en) * | 1997-07-11 | 1999-02-02 | Toshiba Corp | Drum type washing machine |
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2000
- 2000-05-23 DE DE10025016A patent/DE10025016B4/en not_active Expired - Fee Related
-
2001
- 2001-05-09 DE DE50107333T patent/DE50107333D1/en not_active Expired - Lifetime
- 2001-05-09 EP EP01111084A patent/EP1158086B1/en not_active Expired - Lifetime
- 2001-05-09 AT AT01111084T patent/ATE304074T1/en not_active IP Right Cessation
- 2001-05-09 ES ES01111084T patent/ES2245332T3/en not_active Expired - Lifetime
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2006018473A2 (en) * | 2004-08-19 | 2006-02-23 | Abb Oy | Arrangement in an electrical machine |
WO2006018473A3 (en) * | 2004-08-19 | 2006-04-13 | Abb Oy | Arrangement in an electrical machine |
US7804209B2 (en) | 2004-08-19 | 2010-09-28 | Abb Oy | Arrangement in an electrical machine |
CN101010855B (en) * | 2004-08-19 | 2011-08-10 | Abb有限公司 | Arrangement in an electrical machine |
Also Published As
Publication number | Publication date |
---|---|
EP1158086B1 (en) | 2005-09-07 |
ES2245332T3 (en) | 2006-01-01 |
ATE304074T1 (en) | 2005-09-15 |
DE50107333D1 (en) | 2005-10-13 |
DE10025016A1 (en) | 2001-12-06 |
DE10025016B4 (en) | 2006-09-28 |
EP1158086A3 (en) | 2002-09-18 |
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