EP1580311B1 - Moteur à entraînement direct et procédé de montage - Google Patents

Moteur à entraînement direct et procédé de montage Download PDF

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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
Application number
EP05005197A
Other languages
German (de)
English (en)
Other versions
EP1580311A1 (fr
Inventor
Bertram Schmid
Rainer Holzer
Thomas Mehrer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Diehl AKO Stiftung and Co KG
Original Assignee
Diehl AKO Stiftung and Co KG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Diehl AKO Stiftung and Co KG filed Critical Diehl AKO Stiftung and Co KG
Publication of EP1580311A1 publication Critical patent/EP1580311A1/fr
Application granted granted Critical
Publication of EP1580311B1 publication Critical patent/EP1580311B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • D06F37/20—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.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Manufacture Of Motors, Generators (AREA)
  • Iron Core Of Rotating Electric Machines (AREA)

Claims (10)

  1. Moteur comprenant un stator (18) et un rotor, de préférence en tant que moteur à induit extérieur ou à induit intérieur, en tant qu'entraînement direct pour un appareil de traitement du linge, comprenant un tambour monté à rotation dans une croix de palier (2) ou une paroi arrière de cuve (1), le stator étant fixé avec ses bobines excitatrices sur la croix de palier ou sur la paroi arrière de cuve, le rotor étant fixé séparément du stator par le biais d'un mince entrefer à une extrémité d'un arbre de tambour, en vue de transmettre un couple de rotation au tambour, l'arbre de tambour traversant un alésage dans le stator,
    caractérisé en ce que
    le bord de l'alésage dans le stator est pourvu d'une protubérance (5) de préférence cylindrique ou conique, qui vient en prise dans un alésage de palier (3) dans la croix de palier (2) ou dans la paroi arrière de cuve (1), et qui provoque ainsi un centrage de l'alésage du stator par rapport à l'alésage du palier, qui pour sa part reçoit le palier en vue de supporter l'axe du tambour.
  2. Moteur selon la revendication 1,
    caractérisé en ce que
    le stator (18) est formé d'une coque intérieure (4) et d'une coque extérieure (7), qui retiennent la tôle des pôles du stator.
  3. Moteur selon la revendication 2,
    caractérisé en ce que
    la coque intérieure et la coque extérieure se chevauchent et servent d'isolation pour les enroulements des pôles (10).
  4. Moteur selon la revendication 2 ou 3,
    caractérisé en ce que
    des ergots (9) sont montés sur la coque extérieure dans la direction de la cloche d'induit (12), et le diamètre passant par ces ergots est un peu plus petit que le diamètre intérieur de la cloche d'induit, de sorte que ces ergots servent de guidage central lors du montage de la cloche d'induit.
  5. Moteur selon la revendication 4,
    caractérisé en ce que
    les ergots de guidage (9) sont réalisés sous forme de composants séparés qui sont fixés sur le stator.
  6. Moteur selon la revendication 5,
    caractérisé en ce que
    les enroulements pour les pôles du stator sont poussés sous forme de pièces moulées préfabriquées par exemple sous forme de bobinage, sur les pôles de tôle et ensuite la partie d'ergots de guidage (9) est fixée sur le stator (18).
  7. Moteur selon l'une quelconque des revendications 4 à 6,
    caractérisé en ce que
    chaque isolation de pôle du stator est un composant propre avec un ergot de guidage (9) monté, qui est enroulé séparément, et en ce que ces composants sont poussés après le bobinage par dessus les pôles du stator, et sont encliquetés avec la coque intérieure et la coque extérieure.
  8. Moteur selon l'une quelconque des revendications 1 à 7,
    caractérisé en ce que
    le stator (18) est une pièce moulée par injection, le paquet de tôles étant pourvu d'un surmoulage de plastique sous forme de pièce encastrée dans un outil de moulage par injection.
  9. Moteur selon l'une quelconque des revendications 1 à 8,
    caractérisé en ce que
    les enroulements des pôles du stator sont directement enroulés, par les distances entre les pôles, sur le stator (18) par ailleurs fini.
  10. Procédé de montage d'un moteur selon l'une quelconque des revendications précédentes,
    caractérisé en ce que
    le stator (18) est monté avec une pièce auxiliaire (19) qui présente une protubérance (5) de préférence cylindrique ou conique, par le biais de laquelle elle centre le stator, la protubérance venant en prise dans l'alésage du palier (3) dans la croix de palier ou dans la paroi arrière de cuve.
EP05005197A 2004-03-24 2005-03-10 Moteur à entraînement direct et procédé de montage Not-in-force EP1580311B1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE102004014259 2004-03-24
DE102004014259 2004-03-24
DE102004049549A DE102004049549A1 (de) 2004-03-24 2004-10-12 Motor als Direktantrieb und Verfahren zur Montage des Motors
DE102004049549 2004-10-12

Publications (2)

Publication Number Publication Date
EP1580311A1 EP1580311A1 (fr) 2005-09-28
EP1580311B1 true EP1580311B1 (fr) 2008-07-02

Family

ID=34862930

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05005197A Not-in-force EP1580311B1 (fr) 2004-03-24 2005-03-10 Moteur à entraînement direct et procédé de montage

Country Status (3)

Country Link
US (1) US7578149B2 (fr)
EP (1) EP1580311B1 (fr)
DE (2) DE102004049549A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7755228B2 (en) * 2004-11-09 2010-07-13 Lg Electronics Inc. Direct drive motor in washing machine
KR101141638B1 (ko) * 2004-11-11 2012-05-04 엘지전자 주식회사 세탁기의 직결식 모터
DE102006043179A1 (de) * 2006-09-14 2008-03-27 Siemens Ag Mühle zum Mahlen von grobem, steinartigem Schüttgut mit achsparallelem Antrieb
CN101849060B (zh) * 2007-11-05 2012-09-05 大宇电子株式会社 洗涤机及其组装方法
ITPN20080032A1 (it) 2008-04-22 2009-10-23 Appliances Components Companies Spa "lavabiancheria domestica con vasca perfezionata".
KR101460133B1 (ko) * 2009-08-17 2014-11-11 삼성전자 주식회사 세탁기용 모터와 이를 가지는 세탁기
KR101104015B1 (ko) * 2010-05-04 2012-01-06 뉴모텍(주) 모터 세트의 조립이 용이한 로터 하우징 구조 및 이를 이용한 모터 세트의 조립 방법
KR101165411B1 (ko) 2010-08-12 2012-07-16 주식회사 아모텍 드럼세탁기용 직결형 구동 장치 및 이를 이용한 드럼세탁기
WO2012087156A1 (fr) 2010-12-22 2012-06-28 Fisher & Paykel Appliances Limited Appareil amélioré, moteur ou 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 (ko) * 2012-02-07 2013-08-16 삼성전자주식회사 모터와 이를 가지는 세탁기
US10323350B2 (en) * 2013-07-19 2019-06-18 Amotech Co., Ltd. Washing machine motor and washing machine comprising same
EP3161942A4 (fr) * 2014-06-30 2018-04-25 Nidec Motor Corporation Stator à noyau surmoulé et moule pour sa production
KR101639023B1 (ko) * 2015-01-26 2016-07-25 주식회사 아모텍 드럼 구동장치, 이를 구비한 드럼 세탁기 및 구동방법
KR101639022B1 (ko) * 2015-01-26 2016-07-13 주식회사 아모텍 드럼 구동장치, 이를 구비한 드럼 세탁기 및 구동방법
EP3067457B1 (fr) 2015-03-12 2018-05-30 Whirlpool Corporation Machine à laver avec moteur à entraînement direct et procédé de fabrication de celle-ci

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AT392708B (de) * 1988-01-27 1991-05-27 Zumtobel Ag Verfahren zur herstellung eines eisenkoerpers mit einer wicklung
NZ226374A (en) 1988-09-28 1994-10-26 Fisher & Paykel Injection moulding of electric motor rotor or stator
WO1998036123A2 (fr) * 1997-02-17 1998-08-20 Miele & Cie. Gmbh & Co. Appareil de traitement de lessive avec un moteur d'entrainement monte sur l'arbre du tambour
CA2452703C (fr) * 1998-11-09 2006-08-29 Fisher & Paykel Appliances Limited Lave-linge a chargement par le dessus
DE19911139A1 (de) * 1999-03-12 2000-09-14 Bsh Bosch Siemens Hausgeraete Antriebsvorrichtung für eine von vorn beschickbare Waschmaschine
DE19937229A1 (de) 1999-08-06 2001-02-08 Bsh Bosch Siemens Hausgeraete Antriebsvorrichtung für eine Waschmaschine
AU753411B2 (en) 1999-10-19 2002-10-17 Lg Electronics Inc. Structure of driving unit in drum type washing machine
DE10056986A1 (de) 2000-11-17 2002-05-23 Bsh Bosch Siemens Hausgeraete Verfahren und Vorrichtung zur Montage oder Demontage von Antriebselementen eines Haushaltgeräts
DE10058409A1 (de) 2000-11-24 2002-05-29 Bsh Bosch Siemens Hausgeraete Verfahren und Vorrichtung zur Montage eines Außenläufers
DE10060940A1 (de) 2000-12-07 2002-06-13 Bsh Bosch Siemens Hausgeraete Motor und Verfahren zur Montage

Cited By (4)

* Cited by examiner, † Cited by third party
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
EP1580311A1 (fr) 2005-09-28
US7578149B2 (en) 2009-08-25
DE502005004551D1 (de) 2008-08-14
US20050210604A1 (en) 2005-09-29
DE102004049549A1 (de) 2005-10-13

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