EP0988410B1 - Dispositif d'entrainement pour un lave-linge a chargement frontal - Google Patents

Dispositif d'entrainement pour un lave-linge a chargement frontal Download PDF

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Publication number
EP0988410B1
EP0988410B1 EP98936314A EP98936314A EP0988410B1 EP 0988410 B1 EP0988410 B1 EP 0988410B1 EP 98936314 A EP98936314 A EP 98936314A EP 98936314 A EP98936314 A EP 98936314A EP 0988410 B1 EP0988410 B1 EP 0988410B1
Authority
EP
European Patent Office
Prior art keywords
rotor
motor
shaft
drive device
hub
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.)
Expired - Lifetime
Application number
EP98936314A
Other languages
German (de)
English (en)
Other versions
EP0988410B2 (fr
EP0988410A1 (fr
Inventor
Jörg SKRIPPEK
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.)
BSH Hausgeraete GmbH
Original Assignee
BSH Bosch und Siemens Hausgeraete GmbH
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=7832060&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0988410(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by BSH Bosch und Siemens Hausgeraete GmbH filed Critical BSH Bosch und Siemens Hausgeraete GmbH
Publication of EP0988410A1 publication Critical patent/EP0988410A1/fr
Publication of EP0988410B1 publication Critical patent/EP0988410B1/fr
Application granted granted Critical
Publication of EP0988410B2 publication Critical patent/EP0988410B2/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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 drive device for a loadable from the front Washing machine with one inside a bearing sleeve on the back of one Suds container attached, rigid support member at least approximately horizontally lying shaft overhung laundry drum through a also directly attached to the back of the tub, flat motor is driven.
  • Such drive devices are from DE 39 27 426 A1 and DE 43 41 832 A1 known.
  • the stator of the is the stator of the as a brushless external rotor DC motor trained motor attached directly to the bearing sleeve of the rigid support member.
  • the shaft is mounted in the bearing sleeve and at its outer end with the The rotor of the motor is non-rotatably connected.
  • This runner is a so-called External rotor that overlaps the stator windings as a pot and as permanent magnets trained poles.
  • the motor is also surrounded by an insulation hood that is directly connected to the motor the surrounding atmosphere muffles noise.
  • the known drive devices encapsulate the stand, which is caused by heat in electricity its windings are exposed to considerable temperature stress a pot-shaped rotor (in the case of DE 43 41 832 A1 additionally by the sound insulation hood) so strong that cooling of the engine fails at all.
  • a pot-shaped rotor in the case of DE 43 41 832 A1 additionally by the sound insulation hood
  • the known drive devices are also not already assembled Motor available to the manufacturer of washing machines. Your stand and runner must be delivered separately and first assembled in the washing machine factory become. As a rule, special assembly facilities in a washing machine factory to complete motor assemblies not available and also not are desired, the completion of the first with the tub system stator assembly to be connected by the external rotor assembly regularly only be imprecise. Because of compliance with a small and everyone The air gap between the stand and the should always be as large as possible Rotor poles as well as extremely high demands on the centered bearing will not be the case with the aforementioned assembly in a washing machine factory are to be met, the known drive devices are practically only very limited useful.
  • the invention is based on the object, the drive device described above to be designed so that on the one hand cooling of the stator windings the ambient air can be easily guaranteed and the engine in the proper operation with dimensioning according to requirements not can overheat as well as the engine in the factory of the engine manufacturer can be completed and checked before it goes to a washing machine manufacturer to be installed.
  • this object is achieved in that the stand on the rigid support part or instead of the rigid support part with the rear wall of the tub is connected and a central bearing sleeve for the shaft of the laundry drum and for a hub of the rotor encompassing the shaft, that on the outer End of the shaft the hub of the rotor that runs between his hub and the A large number of openings around the circumference and one on its circumference Alkaline-facing, bell-like flange, is attached centered and that the rotor is made entirely of magnetizable steel and with its bell-shaped flange over an air gap that is distributed on the stand, for Inclusion of excitation windings of the stator provided by faces on the outside.
  • the heat-generating components of which are before especially the stator windings, cooled from all sides by the ambient air can be. Even the low engine speed when washing is sufficient moreover, that the rotor creates a heat-dissipating air movement.
  • the training of the runner completely made of steel is simplified compared to the usual well-known "direct drive motors" with special dynamo sheet packages and Excitation windings the manufacture enormous.
  • the heat dissipation is not through Material interruptions or changes disrupted.
  • the engine can also be in the engine supplier's manufacturing plant completely assembled and checked.
  • the appropriate assembly and test aids are available so that motor assemblies are always assembled exactly the same can be delivered to the washing machine factory.
  • this can Assembly instead of a casting star or otherwise usual at this point can also be mounted on the rear wall of the tub system.
  • To the stator of the complete motor is attached to some which parts of the rear wall of the tub are attached.
  • the wave the washing drum from the inserted into the hub of the runner, which over the Rolling bearing is already connected to the stand, and with a central screw secured from behind.
  • These operations are those of attaching one Supporting star and a pulley in accordance with the washing machine constructions that were customary up to now extremely similar, so that none of the assembly staff completely other operations must be learned.
  • the runner can already low rotational movement, e.g. at washing speed, enough cooling air for the Produce stator windings. You can do this, for example, a spoke-like Formation of the rotor disc and a fan-like design of it Spokes or one with fan-shaped openings Operate the back of the bell.
  • the motor can be designed as a so-called switched reluctance motor.
  • the rotor made of a ferromagnetic steel that conducts relatively poorly.
  • the structure of the stator is that of the electronically commutated DC motor comparable.
  • the advantage is in particular a less expensive design of the rotor (no expensive magnetic materials).
  • the centered connection can be used to facilitate and reproducibly precise assembly of the rotor rotatably on the shaft by a positive profile shaft, Profile hub, feather key, taper or keyway connection can be added.
  • the invention is based on an exemplary embodiment shown in the drawing explained below.
  • the single figure shows a schematic representation of a Washing machine tub with a horizontally stored inside Laundry drum, the drive shaft of which together with the hub of the rotor bell the bearing sleeve of the motor stand is mounted.
  • the tub 1 is also in a manner not shown here in one housing of a washing machine, not shown, swinging. At his Front wall 2, it has an opening 3 for loading and unloading the laundry drum 4, in the rear wall 6 of the tub 1 about the horizontal axis 5 is rotatably mounted. For this purpose, the shaft 7, which is on the rear wall 8 of the Laundry drum 4 is rotatably connected to it.
  • the stand supporting part 10 On the rear wall 6 of the tub 1, a motor 9 is mounted, the stand supporting part 10 is non-rotatably connected to the rear wall 6 via the flange 11.
  • the Stand supporting part 10 carries several, preferably three, on its outer circumference the circumference of the tub 1 distributed mounting eyes, the are firmly connected to the tub by means of screws.
  • the stand supporting part 10 is additionally with a mounting flange in a manner not shown here Back wall 6 of the tub 1 screwed.
  • stator support member 10 On the rear surface of the stator support member 10 are a plurality of stator windings 12 distributed that the inner surface of a bell 15 of the rotor 13 with the distance of one face narrow air gap 14. The magnetic reflux of the bell flange 15 is automatically given by its ring shape.
  • the engine can be Driving torques therefore directly over the shaft journal 7 into the laundry drum 4 initiate.
  • the stator 10 of the motor takes like a Tragstem replaced by it also all bearing forces.
  • the bearing sleeve 26 of the stand supporting part 10 forms bearing seats for rolling bearings, the inner rings of which with a good fit on the hub 31 of the laundry drum 4 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 the runner 13 over it Hub 31 and the inner rings of the rolling bearings rotatably connected to the laundry drum 4.
  • the rotor disk 13 is between for better ventilation and cooling of the stator poles their hub 26 and the bell flange 15 equipped with openings 33.
  • These openings can advantageously be shaped at their edges so that the access of cooling air through these openings in the sense of a fan effect is supported.
  • the breakthroughs or in the vicinity of which so-called vortexes are attached, which are for a Whirl the cooling air to ensure better contact with the stator windings receives.
  • the motor is designed here as an electronically commutated DC motor. He can also be designed as a so-called switched reluctance motor. In in this case there is at least the flange of the rotor or its inner support made of a ferromagnetic relatively poorly conductive material. The structure of the stand is comparable to that of an electronically commutated DC motor.
  • the advantage of the reluctance motor is, in particular, that it is less expensive Design of the rotor (no expensive magnetic materials).

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Main Body Construction Of Washing Machines And Laundry Dryers (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
  • Motor Or Generator Frames (AREA)

Claims (5)

  1. Dispositif d'entraínement pour un lave-linge à chargement frontal comprenant un tambour à linge monté en porte à faux, par le biais d'un arbre au moins à peu près horizontal, à l'intérieur d'un coussinet d'un élément porteur rigide installé sur la paroi arrière d'une cuve, lequel tambour à linge est entraíné directement par un moteur plat également installé sur le côté arrière de la cuve, caractérisé en ce que le stator (10) du moteur (9) est relié à l'élément porteur rigide ou relié à la paroi arrière (6) de la cuve (1) à la place de l'élément porteur, et est pourvu d'un coussinet (26) central pour l'arbre (7) du tambour à linge (4) et pour un moyeu (31) du rotor (13) qui entoure l'arbre, en ce que le moyeu (31) du rotor (13), qui est pourvu, entre son moyeu et la partie circonférentielle, d'une pluralité d'ouvertures (33) et, sur sa circonférence, d'une bride (15) similaire à une cloche dirigée vers la cuve (1), est fixé de manière centrée sur l'extrémité extérieure de l'arbre, et en ce que le rotor est intégralement formé d'un acier magnétisable et, avec sa bride en forme de cloche, vient de l'extérieur en face des paquets de tôle (32) répartis sur le stator (10) et prévus pour recevoir les enroulements inducteurs (12) du stator (10), en ménageant un entrefer (14).
  2. Dispositif d'entraínement selon la revendication 1, caractérisé en ce que des parties du rotor (13) sont exécutées de manière à favoriser un mouvement d'air se produisant lors de son mouvement de rotation.
  3. Dispositif d'entraínement selon la revendication 1 ou 2, caractérisé en ce que le moteur (9) est un moteur à courant continu à commutation électronique.
  4. Dispositif d'entraínement selon l'une des revendications 1 ou 2, caractérisé en ce que le moteur (9) est un moteur à réluctance couplé.
  5. Dispositif d'entraínement selon l'une des revendications 1 à 4, caractérisé en ce que la liaison centrée (30) du rotor (13) sur l'arbre (7) empêche la torsion, par conjugaison de forme, grâce à une liaison avec un arbre profilé, un moyeu profilé, une clavette, une liaison conique ou une rainure de clavette.
EP98936314.8A 1997-06-10 1998-06-08 Dispositif d'entrainement pour un lave-linge a chargement frontal Expired - Lifetime EP0988410B2 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19724475A DE19724475B4 (de) 1997-06-10 1997-06-10 Antriebsvorrichtung für eine von vorn beschickbare Waschmaschine
DE19724475 1997-06-10
PCT/EP1998/003420 WO1998056973A1 (fr) 1997-06-10 1998-06-08 Dispositif d'entrainement pour un lave-linge a chargement frontal

Publications (3)

Publication Number Publication Date
EP0988410A1 EP0988410A1 (fr) 2000-03-29
EP0988410B1 true EP0988410B1 (fr) 2002-03-27
EP0988410B2 EP0988410B2 (fr) 2013-10-23

Family

ID=7832060

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98936314.8A Expired - Lifetime EP0988410B2 (fr) 1997-06-10 1998-06-08 Dispositif d'entrainement pour un lave-linge a chargement frontal

Country Status (6)

Country Link
US (1) US5996379A (fr)
EP (1) EP0988410B2 (fr)
DE (2) DE19724475B4 (fr)
ES (1) ES2175740T3 (fr)
TR (1) TR199902909T2 (fr)
WO (1) WO1998056973A1 (fr)

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19859567A1 (de) * 1998-12-22 2000-06-29 Bsh Bosch Siemens Hausgeraete Antriebsvorrichtung für eine von vorn beschickbare Waschmaschine
DE19922610A1 (de) * 1999-05-17 2000-11-23 Bsh Bosch Siemens Hausgeraete Antriebsvorrichtung für eine Waschmaschine
JP3434785B2 (ja) * 1999-06-07 2003-08-11 エルジー電子株式会社 洗濯機用ｂｌｄｃモータ
AU782017B2 (en) 1999-10-18 2005-06-30 Lg Electronics Inc. A driving unit for a drum type washing machine
KR100617213B1 (ko) * 1999-10-19 2006-08-31 엘지전자 주식회사 드럼세탁기의 구동부 구조
DE19960501A1 (de) * 1999-12-15 2001-06-21 Bsh Bosch Siemens Hausgeraete Laugenbehälter für eine Waschmaschine
DE19963703A1 (de) * 1999-12-29 2001-07-05 Bsh Bosch Siemens Hausgeraete Antriebsvorrichtung für eine Waschmaschine
US6487769B2 (en) 2000-11-30 2002-12-03 Emerson Electric Co. Method and apparatus for constructing a segmented stator
US6597078B2 (en) 2000-12-04 2003-07-22 Emerson Electric Co. Electric power steering system including a permanent magnet motor
US7012350B2 (en) 2001-01-04 2006-03-14 Emerson Electric Co. Segmented stator switched reluctance machine
US6897591B2 (en) 2001-03-26 2005-05-24 Emerson Electric Co. Sensorless switched reluctance electric machine with segmented stator
US6744166B2 (en) 2001-01-04 2004-06-01 Emerson Electric Co. End cap assembly for a switched reluctance electric machine
US6584813B2 (en) 2001-03-26 2003-07-01 Emerson Electric Co. Washing machine including a segmented stator switched reluctance motor
US6700284B2 (en) 2001-03-26 2004-03-02 Emerson Electric Co. Fan assembly including a segmented stator switched reluctance fan motor
CN100414029C (zh) * 2003-06-30 2008-08-27 乐金电子(天津)电器有限公司 全自动洗衣机的驱动装置
KR20050115342A (ko) * 2004-06-02 2005-12-07 삼성전자주식회사 드럼 세탁기
KR20050119269A (ko) * 2004-06-16 2005-12-21 삼성전자주식회사 드럼세탁기
JP2008516577A (ja) * 2004-10-08 2008-05-15 デーウー・エレクトロニクス・コーポレイション アウターロータ型モータ及びそれを備えたドラム洗濯機
US7282823B2 (en) * 2004-10-29 2007-10-16 Emerson Electric Co. Self-cooling electric machine
US7342334B2 (en) * 2004-10-29 2008-03-11 Emerson Electric Co. Insulated stator with wire routing element
US8405268B2 (en) 2010-02-18 2013-03-26 Nidec Motor Corporation Stator with monolithic mounting bosses and assembly comprising the same
KR102646735B1 (ko) * 2016-11-04 2024-03-13 삼성전자주식회사 세탁기용 모터 및 이를 구비하는 세탁기

Family Cites Families (10)

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Publication number Priority date Publication date Assignee Title
DE944157C (de) * 1945-01-04 1956-06-07 Siemens Ag Schwinganordnung
NL291769A (fr) * 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
US4998052A (en) * 1989-07-28 1991-03-05 General Electric Company Gearless direct drive switched reluctance motor for laundry application
DE3927426B4 (de) * 1989-08-19 2006-02-23 Ebm-Papst Mulfingen Gmbh & Co. Kg Antriebseinheit für eine Wäsche-Behandlungsmaschine
DE4341832C2 (de) * 1993-12-08 2001-11-08 Fhp Motors Gmbh Waschautomat
JP3229114B2 (ja) * 1994-03-31 2001-11-12 株式会社東芝 洗濯機
DE19546185B4 (de) * 1995-12-11 2010-07-01 BSH Bosch und Siemens Hausgeräte GmbH Antriebsvorrichtung für eine von vorn beschickbare Waschmaschine
DE19547745A1 (de) * 1995-12-20 1997-06-26 Bosch Siemens Hausgeraete Antriebsvorrichtung für eine von vorn beschickbare Waschmaschine

Also Published As

Publication number Publication date
ES2175740T3 (es) 2002-11-16
TR199902909T2 (xx) 2000-07-21
DE59803525D1 (de) 2002-05-02
EP0988410B2 (fr) 2013-10-23
DE19724475B4 (de) 2010-08-05
WO1998056973A1 (fr) 1998-12-17
EP0988410A1 (fr) 2000-03-29
US5996379A (en) 1999-12-07
DE19724475A1 (de) 1998-12-17

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