EP1580311B1 - Direct drive motor and assembly method - Google Patents
Direct drive motor and assembly method Download PDFInfo
- Publication number
- EP1580311B1 EP1580311B1 EP05005197A EP05005197A EP1580311B1 EP 1580311 B1 EP1580311 B1 EP 1580311B1 EP 05005197 A EP05005197 A EP 05005197A EP 05005197 A EP05005197 A EP 05005197A EP 1580311 B1 EP1580311 B1 EP 1580311B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- stator
- rotor
- motor according
- poles
- motor
- 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.)
- Not-in-force
Links
- 238000000034 method Methods 0.000 title claims description 6
- 238000004804 winding Methods 0.000 claims description 13
- 238000009413 insulation Methods 0.000 claims description 5
- 241000239290 Araneae Species 0.000 claims 4
- 238000001746 injection moulding Methods 0.000 claims 2
- 238000009434 installation Methods 0.000 claims 2
- 210000001331 nose Anatomy 0.000 description 6
- 125000006850 spacer group Chemical group 0.000 description 3
- 238000013459 approach Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Images
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
- D06F37/20—Mountings, e.g. resilient mountings, for the rotary receptacle, motor, tub or casing; Preventing or damping vibrations
- D06F37/206—Mounting of motor
-
- 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 present invention relates to a motor and a method for mounting the motor as a direct drive element for a laundry treatment appliance.
- Laundry treatment appliances include washing machines, spin dryers or tumble dryers. These machines comprise a drum rotatably mounted in a tub and driven by a motor. The drum is designed for receiving laundry or laundry and in a known manner from the front or from above fed.
- direct drives can be designed as external rotor or as internal rotor. The direct drive eliminates wearing parts such as belts or gears.
- the stator In external rotor motors, the stator consists of circularly arranged poles (laminated cores) with insulation and pole winding.
- EP 0 361 775 B1 form the stator with its windings, the tub rear wall and the bearing cross with bearing bore for the drum axis one unit. They are designed as plastic injection molded parts with inserts. The disadvantage of this is a poor heat dissipation and a large amount of material to Kriechstromfestem plastic.
- a bearing bore in a bearing cross or a tub rear wall is precisely machined for the seating of ball bearings.
- the invention makes use of this anyway required, defined and smooth bore for centering the stator.
- the stator has on the side facing the tub in the middle a preferably cylindrical or conical protuberance, which fits exactly into the bore in Lagerkeuz or in the tub rear wall.
- the stator may be made of e.g. two electrically insulating plastic shells carrying the laminated core, be composed.
- the two plastic cups, an inner shell and an outer shell are precisely molded parts.
- the inner shell has the center of the protuberance, which fits exactly into the bearing bore.
- the two plastic shells in addition to their holding function, form the insulation for the pole windings of the stator poles. To ensure that the required large leakage current path between stator laminated core and stator winding can be maintained, the two plastic shells overlap.
- the laminated core is placed in the shells.
- the two shells hold together by detents (e.g., on the inner shell).
- the entire stator with the inner protuberance can be placed centrally on the supporting star and conventionally, e.g. be fixed with screws. These screws are screwed through the two spacers of the outer plastic shell in the bearing cross or the tub rear wall. So they are isolated from the laminated core of the stator.
- the outer plastic shell according to the invention has above the Polisol ist in the direction of the rotor bell, for example, ejected lugs.
- the outer diameter over the lugs corresponds to the inner diameter of a rotor bell with its permanent magnetic poles.
- these noses serve for easy assembly of the rotor bell.
- the rotor bell is pushed over the noses in the direction of the drum.
- the inner hole of the bell pushes on the drum axis and the rotor bell is kept so centric. It can not even be driven by the magnetic forces of the permanent magnetic poles on the soft magnetic poles of the stator. Thus, damage to the permanent magnets of the rotor bell is excluded.
- the lugs are laterally offset outward next to the permanent magnet poles of the rotor bell in the interior.
- the rotor bell can rotate freely. She is on the drum axis in every conventional Way, eg with a mother, fixable.
- the same principle applies in an analogous manner as for the external rotor described above.
- the noses on the outer plastic shell need not be injected.
- the same assembly is with a nose part, e.g. made of plastic, which is snapped on the outer shell, possible.
- the pole windings for the stator poles could be wound independently of this and pushed over the poles before attaching the nose piece.
- the principle of the invention to center the stator in the bearing bore of the bearing cross or the tub rear wall can also be realized with an auxiliary part for mounting the stator.
- the auxiliary part then has in the middle the preferably cylindrical or conical protuberance, which fits exactly into the bearing bore.
- the auxiliary part could e.g. be designed as a bell into which the stator with its largest outer diameter just fits.
- the complete stator would be pushed together with the auxiliary part on the bearing cross or the tub rear wall and then, for. screwed with screws through holes in the auxiliary part. Thereafter, the auxiliary part would be withdrawn again and mounted the rotor as described above.
- FIG. 1 shows the sectional view of a direct drive fully assembled on a laundry treatment device.
- the tub of the laundry treatment appliance is shown only partially with its rear wall 1.
- the bearing cross 2 is fixed in place.
- the bearing cross 2 has a central bore 3, which is precisely processed for the seats of a bearing 16.
- a cylindrical protuberance 5 on a stator 18 is formed on an inner plastic shell 4. It protrudes precisely into the hole 3 of the bearing cross 2 and thus guarantees the centric seat of the stator 18.
- the stator 18 is held in a known manner by screws 11 fixed to the bearing cross 2.
- the screws 11 are insulated by high spacers 8 against laminated cores of the stator 18.
- the stator 18 is formed by the inner plastic shell 4 and an outer plastic shell 7 with inserted laminated cores.
- the plastic shells 4 and 7 are held together by snap hooks 6.
- the snap hooks 6 are attached to the inner plastic shell 4. In the assembled state, the plastic shells 4 and 7 are held by the screws 11 firmly in position.
- Polwicklungen 10 of the stator poles are insulated by the plastic shells 4 and 7 against the laminated cores.
- a rotor bell 12 carries in a known manner inside permanent magnetic poles 13. It is pushed during assembly in the direction of movement 17, ie from the outside on a drum shaft 14. The rotor bell 12 comes first into contact with lugs 9 of the outer plastic shell 7. The poles 13 of the rotor bell 12 slide during assembly via the lugs 9 of the outer plastic shell 7. At the same time pushes the inner hole of the rotor bell over the drum axis 14. In the assembled Condition are the lugs 9 at a distance next to the poles 13 of the rotor bell 12. The rotor bell 12 can rotate freely. It is connected by a nut 15 fixed to the drum axis 14.
- the described direct drive can also be formed by a motor that includes a stator 18, the like FIG. 5 was mounted visible.
- An auxiliary part 19 for mounting the stator 18 has centrally a cylindrical protuberance 5.
- the stator 18 is held in a bell 20 of the auxiliary part 19.
- the auxiliary part 19 is placed with the stator 18 on the bearing cross 2 and the tub rear wall 1. It is centered on the cylindrical protuberance 5.
- the stator 18 is fixed, for example with screws 11, and then the auxiliary part 19 is withdrawn.
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Manufacture Of Motors, Generators (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
Description
Die vorliegende Erfindung betrifft einen Motor und ein Verfahren zur Montage des Motors als Direktantriebselement für ein Wäschebehandlungsgerät.The present invention relates to a motor and a method for mounting the motor as a direct drive element for a laundry treatment appliance.
Wäschebehandlungsgeräte sind u.a. Waschmaschinen, Wäscheschleudern oder Wäschetrockner. Diese Maschinen umfassen eine in einem Bottich drehbar gelagerte Trommel, die motorisch angetrieben wird. Die Trommel ist zur Aufnahme von Waschgut oder Wäsche ausgebildet und in bekannter Weise von vorne oder von oben beschickbar. Als Antriebsmotoren werden heute zunehmend wegen ihrer guten Regelbarkeit und ihrer nahezu unbegrenzten Lebensdauer Direktantriebe (also direkt, d.h. ohne Kraftübertragung mittels Riemen oder Getriebe die Trommelwelle antreibende Motoren) eingesetzt. Direktantriebe können als Außenläufer oder als Innenläufer ausgebildet sein. Beim Direktantrieb entfallen Verschleißteile wie Riemen oder Getriebe. Bei Außenläufermotoren besteht der Stator aus kreisförmig angeordneten Polen (Blechpaketen) mit Isolierung und Polwicklung. Ihm gegenüber stehen permanentmagnetische Pole, die am Innenumfang eines meist glockenförmig ausgebildeten Außenläufers sitzen. Der tatsächliche Luftspalt beträgt z.B. 0,5 - 2 mm. Durch den auf den Umfang des Motors bezogenen kleinen Luftspalt ist sowohl eine genaue Positionierung des Stators zur Trommellagerung als auch eine gute Fixierung nötig. Die Isolierung der Polwicklungen muß die bei Hausgeräten geforderten Kriechstrecken sicher einhalten. Der Rotor (Außenläufer oder Innenläufer) darf bei der Montage nicht mit seinen Magneten auf die Pole des Stators schlagen. Zur Erfüllung dieser Forderungen sind nach dem Stand der Technik z. B. folgende Ansätze bekannt:Laundry treatment appliances include washing machines, spin dryers or tumble dryers. These machines comprise a drum rotatably mounted in a tub and driven by a motor. The drum is designed for receiving laundry or laundry and in a known manner from the front or from above fed. As drive motors are now increasingly due to their good controllability and their almost unlimited life direct drives (ie directly, ie without power transmission by means of belt or gear drum drive motor driving) used. Direct drives can be designed as external rotor or as internal rotor. The direct drive eliminates wearing parts such as belts or gears. In external rotor motors, the stator consists of circularly arranged poles (laminated cores) with insulation and pole winding. His opposite permanent magnetic poles, sitting on the inner circumference of a usually bell-shaped outer rotor. The actual air gap is eg 0.5 - 2 mm. Due to the small air gap related to the circumference of the motor, both an exact positioning of the stator for drum mounting and a good fixation are necessary. The insulation of the pole windings must safely comply with the creepage distances required for domestic appliances. The rotor (outer rotor or inner rotor) must not hit the poles of the stator with its magnets during assembly. To meet these requirements, according to the prior art z. B. the following approaches:
Nach der
Nach der
Nach der
Nach der
Es ist Aufgabe der vorliegenden Erfindung, durch konstruktive Ausbildung einen einfacher zu montierenden Motor zu schaffen und damit ein verbessertes Verfahren für die Montage dieses Motors an ein Wäschebehandlungsgerät zu finden.It is an object of the present invention to provide a simple to mount motor by structural design and thus to find an improved method for mounting this motor to a laundry treatment device.
Diese Aufgabe wird erfindungsgemäß durch einen Motor mit den Merkmalen des Anspruchs 1 und ein Verfahren für seine Montage gemäß Anspruch 10 gelöst.This object is achieved by a motor with the features of
Eine Lagerbohrung in einem Lagerkreuz bzw. einer Bottichrückwand ist für den Sitz von Kugellagern genau bearbeitet. Die Erfindung nutzt diese ohnehin nötige, definierte und glatte Bohrung zur Zentrierung des Stators aus. Damit dies möglich wird, hat der Stator an der zum Bottich zugewandten Seite mittig eine vorzugsweise zylindrische oder kegelige Ausstülpung, die genau in die Bohrung im Lagerkeuz bzw. in der Bottichrückwand passt.A bearing bore in a bearing cross or a tub rear wall is precisely machined for the seating of ball bearings. The invention makes use of this anyway required, defined and smooth bore for centering the stator. To make this possible, the stator has on the side facing the tub in the middle a preferably cylindrical or conical protuberance, which fits exactly into the bore in Lagerkeuz or in the tub rear wall.
Der Stator kann aus z.B. zwei elektrisch isolierenden Kunststoffschalen, die das Blechpaket tragen, zusammengesetzt sein.The stator may be made of e.g. two electrically insulating plastic shells carrying the laminated core, be composed.
Die beiden Kunststoffschalen, eine innere Schale und eine äußere Schale sind präzise Spritzteile. Die innere Schale hat mittig die Ausstülpung, die genau in die Lagerbohrung passt. Die beiden Kunststoffschalen bilden zusätzlich zu ihrer Haltefunktion die Isolierung für die Polwicklungen der Statorpole. Damit der nötige große Kriechstromweg zwischen Statorblechpaket und Statorwicklung eingehalten werden kann, überlappen sich die beiden Kunststoffschalen.The two plastic cups, an inner shell and an outer shell are precisely molded parts. The inner shell has the center of the protuberance, which fits exactly into the bearing bore. The two plastic shells, in addition to their holding function, form the insulation for the pole windings of the stator poles. To ensure that the required large leakage current path between stator laminated core and stator winding can be maintained, the two plastic shells overlap.
Bei der Fertigung des Stators wird das Blechpaket in die Schalen gelegt. Die beiden Schalen halten durch Rastnasen (z.B. an der inneren Schale) zusammen. Nach der Bewicklung der Pole kann der komplette Stator mit der inneren Ausstülpung zentrisch auf den Tragstern gesetzt werden und herkömmlich, z.B. mit Schrauben, fixiert werden. Diese Schrauben sind durch die beiden Abstandhalter der äußeren Kunststoffschale in das Lagerkreuz bzw. die Bottichrückwand geschraubt. Damit sind sie gegen das Blechpaket des Stators isoliert.When manufacturing the stator, the laminated core is placed in the shells. The two shells hold together by detents (e.g., on the inner shell). After winding the poles, the entire stator with the inner protuberance can be placed centrally on the supporting star and conventionally, e.g. be fixed with screws. These screws are screwed through the two spacers of the outer plastic shell in the bearing cross or the tub rear wall. So they are isolated from the laminated core of the stator.
Die äußere Kunststoffschale gemäß Weiterbildung der Erfindung hat oberhalb der Polisolierung in Richtung zur Läuferglocke z.B. ausgespritzte Nasen. Der Außendurchmesser über die Nasen entspricht dem Innendurchmesser einer Rotorglocke mit ihren permanentmagnetischen Polen. Erfindungsgemäß dienen diese Nasen zu einer problemlosen Montage der Rotorglocke. Die Rotorglocke wird über die Nasen in Richtung Trommel geschoben. Dabei schiebt sich das Innenloch der Glocke auf die Trommelachse und die Rotorglocke wird so zentrisch gehalten. Sie kann selbst durch die magnetischen Kräfte der permanentmagnetischen Pole getrieben nicht auf die weichmagnetischen Pole des Ständers schlagen. Somit ist eine Beschädigung der Permanentmagnete der Rotorglocke ausgeschlossen. Ist die Rotorglocke ganz aufgeschoben, stehen die Nasen seitlich nach außen versetzt neben den permantmagnetischen Polen der Rotorglocke in deren Innenraum. Die Rotorglocke kann sich frei drehen. Sie ist auf der Trommelachse in jeder herkömmlichen Weise, z.B. mit einer Mutter, fixierbar. Für einen Innenläufer gilt in analoger Weise das gleiche Prinzip, wie für den oben beschriebenen Außenläufer.The outer plastic shell according to the invention has above the Polisolierung in the direction of the rotor bell, for example, ejected lugs. The outer diameter over the lugs corresponds to the inner diameter of a rotor bell with its permanent magnetic poles. According to the invention, these noses serve for easy assembly of the rotor bell. The rotor bell is pushed over the noses in the direction of the drum. In this case, the inner hole of the bell pushes on the drum axis and the rotor bell is kept so centric. It can not even be driven by the magnetic forces of the permanent magnetic poles on the soft magnetic poles of the stator. Thus, damage to the permanent magnets of the rotor bell is excluded. If the rotor bell is fully pushed, the lugs are laterally offset outward next to the permanent magnet poles of the rotor bell in the interior. The rotor bell can rotate freely. She is on the drum axis in every conventional Way, eg with a mother, fixable. For an internal rotor, the same principle applies in an analogous manner as for the external rotor described above.
Die Nasen auf der äußeren Kunststoffschale müssen nicht ausgespritzt sein. Die gleiche Montage ist mit einem Nasenteil z.B. aus Kunststoff, das an der äußeren Schale angeschnappt wird, möglich. In diesem Fall könnten die Polwicklungen für die Statorpole unabhängig von diesem gewickelt werden und vor dem Befestigen des Nasenteils über die Pole geschoben werden.The noses on the outer plastic shell need not be injected. The same assembly is with a nose part, e.g. made of plastic, which is snapped on the outer shell, possible. In this case, the pole windings for the stator poles could be wound independently of this and pushed over the poles before attaching the nose piece.
Das Prinzip der Erfindung, den Stator in der Lagerbohrung des Lagerkreuz bzw. der Bottichrückwand zu zentrieren, kann man auch mit einem Hilfsteil zur Montage des Stators verwirklichen. Das Hilfsteil hat dann mittig die vorzugsweise zylindrische oder kegelige Ausstülpung, die genau in die Lagerbohrung passt. Das Hilfsteil könnte z.B. als Glocke ausgebildet sein, in die der Stator mit seinem größten Außendurchmesser gerade hineinpasst. Der komplette Stator würde zusammen mit dem Hilfsteil auf das Lagerkreuz bzw. die Bottichrückwand geschoben und dann z.B. mit Schrauben durch Löcher im Hilfsteil festgeschraubt. Danach würde das Hilfsteil wieder abgezogen und der Läufer wie oben beschrieben montiert.The principle of the invention to center the stator in the bearing bore of the bearing cross or the tub rear wall, can also be realized with an auxiliary part for mounting the stator. The auxiliary part then has in the middle the preferably cylindrical or conical protuberance, which fits exactly into the bearing bore. The auxiliary part could e.g. be designed as a bell into which the stator with its largest outer diameter just fits. The complete stator would be pushed together with the auxiliary part on the bearing cross or the tub rear wall and then, for. screwed with screws through holes in the auxiliary part. Thereafter, the auxiliary part would be withdrawn again and mounted the rotor as described above.
Unter Verwirklichung einiger der vorstehend beschriebenen Merkmale ergibt sich so ein Verfahren zur Montage eines Motors als Direktantrieb für ein Wäschebehandlungsgerät, bei dem der Stator ohne zusätzliche Behandlung eines weitgehend herkömmlichen Lagersystems einfach genau zentrisch montierbar ist und sich die Läuferglocke ohne Gefahr einer Beschädigung ihrer Permanentmagnete montieren läßt.By realizing some of the features described above, this results in a method for mounting a motor as a direct drive for a laundry treatment device, in which the stator is simply centric mountable without additional treatment of a largely conventional storage system and can mount the rotor bell without risk of damaging their permanent magnets ,
Nachfolgend werden Ausführungsbeispiele anhand von Zeichnungen näher erläutert.Embodiments will be explained in more detail with reference to drawings.
In den Zeichungen zeigen:
- Fig. 1
- eine Schnittdarstellung eines Motors als Direktantrieb für ein Wäschebehandlungsgerät,
- Fig. 2
- eine perspektivische Darstellung der inneren Kunststoffschale des Stators von der Bottichrückwand aus gesehen,
- Fig. 3
- eine perspektivische Darstellung der inneren Kunststoffschale des Stators von der Rückwand des Wäschebehandlungsgerätes aus gesehen,
- Fig. 4
- eine perspektivische Darstellung der äußeren Kunststoffschale des Stators von der Bottichrückwand aus gesehen und
- Fig. 5
- eine Schnittdarstellung des Motors mit einem Hilfsteil zur Montage des Stators auf dem Tragstern.
- Fig. 1
- a sectional view of a motor as a direct drive for a laundry treatment appliance,
- Fig. 2
- a perspective view of the inner plastic shell of the stator seen from the tub rear wall,
- Fig. 3
- a perspective view of the inner plastic shell of the stator seen from the rear wall of the laundry treatment device,
- Fig. 4
- a perspective view of the outer plastic shell of the stator seen from the tub rear wall and
- Fig. 5
- a sectional view of the engine with an auxiliary part for mounting the stator on the supporting star.
Die
Der Stator 18 wird durch die innere Kunststoffschale 4 und eine äußere Kunststoffschale 7 mit eingelegten Blechpaketen gebildet. Die Kunststoffschalen 4 und 7 werden durch Schnapphaken 6 zusammengehalten. Die Schnapphaken 6 sind an der inneren Kunststoffschale 4 angebracht. Im montierten Zustand werden die Kunststoffschalen 4 und 7 durch die Schrauben 11 fest in ihrer Position gehalten.The
Polwicklungen 10 der Statorpole sind durch die Kunststoffschalen 4 und 7 gegen die Blechpakete isoliert.
Eine Rotorglocke 12 trägt in bekannter Weise innen permanentmagnetische Pole 13. Sie wird bei der Montage in Bewegungsrichtung 17, also von außen auf eine Trommelwelle 14 geschoben. Dabei kommt die Rotorglocke 12 zuerst in Berührung mit Nasen 9 der äußeren Kunststoffschale 7. Die Pole 13 der Rotorglocke 12 gleiten bei der Montage über die Nasen 9 der äußeren Kunststoffschale 7. Gleichzeitig schiebt sich das Innenloch der Rotorglocke über die Trommelachse 14. Im fertig montierten Zustand liegen die Nasen 9 mit Abstand neben den Polen 13 der Rotorglocke 12. Die Rotorglocke 12 kann sich frei drehen. Sie ist durch eine Mutter 15 fest mit der Trommelachse 14 verbunden.A
Der beschriebene Direktantrieb kann auch durch einen Motor gebildet werden, der einen Stator 18 enthält, der wie aus
- 1.1.
- Bottichrückwand eines WäschebehandlungsgerätsVat back of a laundry treatment appliance
- 2.Second
- Lagerkreuzbearing cross
- 3.Third
- Bohrung im Lagerkreuz bzw. in der Bottichrückwand für die TrommellagerungBore in the bearing cross or in the tub rear wall for the drum storage
- 4.4th
- Innere KunststoffschaleInner plastic shell
- 5.5th
- Zylindrische Ausstülpung zur ZentrierungCylindrical protuberance for centering
- 6.6th
- Schnapphaken an der inneren KunststoffschaleSnap hook on the inner plastic shell
- 7.7th
- Äußere KunststoffschaleOuter plastic shell
- 8.8th.
- Abstandshalterspacer
- 99
- Nasennose
- 10.10th
- Wicklungen der StatorpoleWindings of the stator poles
- 11.11th
- Schrauben zur StatorbefestigungScrews for stator mounting
- 12.12th
- Rotorglockerotor bell
- 13.13th
- Permanentmagnetische PolePermanent magnetic poles
- 14.14th
- Trommelachsedrum axis
- 15.15th
- Muttermother
- 16.16th
- Trommellagerdrum bearing
- 17.17th
- Bewegungsrichtung Montage LäuferglockeDirection of movement Mounting rotor bell
- 18.18th
- Statorstator
- 19.19th
- Hilfsteil zur Montage eines StatorsAuxiliary part for mounting a stator
- 2020
-
Glocke im Hilfsteil 19Bell in the
auxiliary part 19
Claims (10)
- Motor, having a stator (18) and a rotor, preferably in the form of an external rotor motor or an internal rotor motor, as a direct drive for a laundry treatment appliance having a drum which is mounted in a bearing spider (2) or in a rear wall of the tub (1) so as to be rotatable, the stator being arranged such that its field coils are fixed to the bearing spider or to the rear wall of the tub, the rotor being secured on one end of a drum shaft, separated from the stator by a narrow air gap, in order to transmit a torque to the drum, and the drum shaft passing through a hole in the stator,
characterized
in that the edge of the hole in the stator is provided with a preferably cylindrical or conical protuberance (5) which engages in a bearing hole (3) in the bearing spider (2) or in the rear wall of the tub (1) and thus has the effect of centring the stator hole with respect to the bearing hole which, for its part, accommodates the bearings for mounting the drum shaft. - Motor according to Claim 1,
characterized
in that the stator (18) is formed from an inner (4) and an outer (7) shell which hold the laminate of the stator poles. - Motor according to Claim 2,
characterized
in that the inner and the outer shell overlap and are used as insulation for the pole windings (10). - Motor according to Claim 2 or 3,
characterized
in that lugs (9) are attached to the outer shell in the direction of the rotor bell (12) and the diameter across these lugs is a little smaller than the inside diameter of the rotor bell, such that these lugs are used for central guidance during installation of the rotor bell. - Motor according to Claim 4,
characterized
in that the guide lugs (9) are in the form of separate components which are secured on the stator. - Motor according to Claim 5,
characterized
in that the windings for the stator poles are pushed over the laminated poles as prefabricated shaped parts, for example as a baked winding, and the guide-lug part (9) is then secured to the stator (18). - Motor according to one of Claims 4 to 6,
characterized
in that each pole insulation for the stator is a dedicated component which has a guide lug (9) attached to it and is wound separately, and in that these components are pushed over the stator poles following winding and are latched to the inner and the outer shell. - Motor according to one of Claims 1 to 7,
characterized
in that the stator (18) is an injection-moulded part in which the laminated core is encapsulated by injection moulding with plastic as an insert in an injection-moulding die. - Motor according to one of Claims 1 to 8,
characterized
in that the windings of the stator poles are wound directly through the spaces between the poles onto the otherwise complete stator (18). - Method for installation of a motor, according to one of the preceding claims,
characterized
in that the stator (18) is installed using an auxiliary part (19) which has a preferably cylindrical or conical protuberance (5) by means of which said auxiliary part centres the stator, the protuberance engaging in the bearing hole (3) in the bearing spider or in the rear wall of the tub (1).
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102004014259 | 2004-03-24 | ||
| DE102004014259 | 2004-03-24 | ||
| DE102004049549A DE102004049549A1 (en) | 2004-03-24 | 2004-10-12 | Motor as direct drive and method of mounting the motor |
| DE102004049549 | 2004-10-12 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1580311A1 EP1580311A1 (en) | 2005-09-28 |
| EP1580311B1 true EP1580311B1 (en) | 2008-07-02 |
Family
ID=34862930
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP05005197A Not-in-force EP1580311B1 (en) | 2004-03-24 | 2005-03-10 | Direct drive motor and assembly method |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US7578149B2 (en) |
| EP (1) | EP1580311B1 (en) |
| DE (2) | DE102004049549A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8616029B2 (en) | 2008-05-14 | 2013-12-31 | Whirlpool Corporation | Washing machine with a direct drive system |
| US11670977B2 (en) | 2019-04-24 | 2023-06-06 | Black & Decker Inc. | Outer rotor brushless motor stator mount |
Families Citing this family (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006052073A2 (en) * | 2004-11-09 | 2006-05-18 | Lg Electronics Inc. | Direct drive motor in washing machine |
| KR101141638B1 (en) * | 2004-11-11 | 2012-05-04 | 엘지전자 주식회사 | direct drive motor in washing machine |
| DE102006043179A1 (en) * | 2006-09-14 | 2008-03-27 | Siemens Ag | Mill for grinding coarse, stone-like bulk material with axis-parallel drive |
| WO2009061080A1 (en) * | 2007-11-05 | 2009-05-14 | Daewoo Electronics Corporation | Washing machine and assembling method thereof |
| ITPN20080032A1 (en) | 2008-04-22 | 2009-10-23 | Appliances Components Companies Spa | "DOMESTIC WASHING MACHINE WITH PERFECT TANK". |
| KR101460133B1 (en) * | 2009-08-17 | 2014-11-11 | 삼성전자 주식회사 | Motor usable with washing machine and washing machine having the same |
| KR101104015B1 (en) * | 2010-05-04 | 2012-01-06 | 뉴모텍(주) | Rotor Housing for Easy and Safe Assembling and Method for Assembling Motor Set Using the Rotor Housing |
| KR101165411B1 (en) | 2010-08-12 | 2012-07-16 | 주식회사 아모텍 | Direct drive apparatus for drum washing machine and drum washing machine thereof |
| DE202011111030U1 (en) | 2010-12-22 | 2018-07-05 | Fisher & Paykel Appliances Limited | improved device, motor or stator |
| US8966057B2 (en) | 2011-01-21 | 2015-02-24 | At&T Intellectual Property I, L.P. | Scalable policy deployment architecture in a communication network |
| US9080279B2 (en) * | 2011-10-24 | 2015-07-14 | Lg Electronics Inc. | Washing machine to produce three-dimensional motion |
| KR20130091019A (en) * | 2012-02-07 | 2013-08-16 | 삼성전자주식회사 | Motor and washing machine having the same |
| WO2015009106A1 (en) * | 2013-07-19 | 2015-01-22 | 주식회사 아모텍 | Washing machine motor and washing machine comprising same |
| AU2015284163B2 (en) * | 2014-06-30 | 2019-06-27 | Nidec Motor Corporation | Stator with overmolded core and mold for producing same |
| KR101639022B1 (en) * | 2015-01-26 | 2016-07-13 | 주식회사 아모텍 | Rdum driving apparatus, drum washing machine having the same and driving method thereof |
| KR101639023B1 (en) * | 2015-01-26 | 2016-07-25 | 주식회사 아모텍 | Rdum driving apparatus, drum washing machine having the same and driving method thereof |
| EP3067457B1 (en) | 2015-03-12 | 2018-05-30 | Whirlpool Corporation | Washing machine with direct drive motor and method for its manufacturing |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT392708B (en) * | 1988-01-27 | 1991-05-27 | Zumtobel Ag | METHOD FOR PRODUCING AN IRON BODY WITH A WRAP |
| NZ226374A (en) * | 1988-09-28 | 1994-10-26 | Fisher & Paykel | Injection moulding of electric motor rotor or stator |
| WO1998036123A2 (en) * | 1997-02-17 | 1998-08-20 | Miele & Cie. Gmbh & Co. | Laundry treating equipment with a driving motor mounted on the drum shaft |
| CA2452703C (en) * | 1998-11-09 | 2006-08-29 | Fisher & Paykel Appliances Limited | Top loading 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 |
| DE19937229A1 (en) | 1999-08-06 | 2001-02-08 | Bsh Bosch Siemens Hausgeraete | Drive arrangement for washing machine, has shaft of laundry drum which is driven directly through motor attached at rear wall of washing water container |
| AU753411B2 (en) | 1999-10-19 | 2002-10-17 | Lg Electronics Inc. | Structure of driving unit in drum type washing machine |
| DE10056986A1 (en) | 2000-11-17 | 2002-05-23 | Bsh Bosch Siemens Hausgeraete | Fitting or removing drive elements in domestic machine involves fitting extension adapter part to free end of shaft, carrying out fitting and removal of drive elements using adapter part |
| DE10058409A1 (en) | 2000-11-24 | 2002-05-29 | Bsh Bosch Siemens Hausgeraete | Mounting electric motor external rotor e.g. for washing machines, involves moving it freely along shaft end into guide contact with mounting device, and bringing parts into contact with mounting device for final fixing |
| DE10060940A1 (en) | 2000-12-07 | 2002-06-13 | Bsh Bosch Siemens Hausgeraete | Motor has protrusion on stator bearer part to form guiding engagement with aperture near bearer star for assembly with approximate positioning with respect to center axis |
-
2004
- 2004-10-12 DE DE102004049549A patent/DE102004049549A1/en not_active Withdrawn
-
2005
- 2005-02-17 US US11/059,934 patent/US7578149B2/en not_active Expired - Fee Related
- 2005-03-10 EP EP05005197A patent/EP1580311B1/en not_active Not-in-force
- 2005-03-10 DE DE502005004551T patent/DE502005004551D1/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8616029B2 (en) | 2008-05-14 | 2013-12-31 | Whirlpool Corporation | Washing machine with a direct drive system |
| US9451869B2 (en) | 2008-05-14 | 2016-09-27 | Whirlpool Corporation | Washing machine with a direct drive system |
| US11670977B2 (en) | 2019-04-24 | 2023-06-06 | Black & Decker Inc. | Outer rotor brushless motor stator mount |
| US11973374B2 (en) | 2019-04-24 | 2024-04-30 | Black & Decker Inc. | Outer rotor brushless motor having an axial fan |
Also Published As
| Publication number | Publication date |
|---|---|
| US7578149B2 (en) | 2009-08-25 |
| US20050210604A1 (en) | 2005-09-29 |
| DE102004049549A1 (en) | 2005-10-13 |
| DE502005004551D1 (en) | 2008-08-14 |
| EP1580311A1 (en) | 2005-09-28 |
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