EP0988410B2 - 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
EP0988410B2
EP0988410B2 EP98936314.8A EP98936314A EP0988410B2 EP 0988410 B2 EP0988410 B2 EP 0988410B2 EP 98936314 A EP98936314 A EP 98936314A EP 0988410 B2 EP0988410 B2 EP 0988410B2
Authority
EP
European Patent Office
Prior art keywords
rotor
shaft
stator
motor
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
EP98936314.8A
Other languages
German (de)
English (en)
Other versions
EP0988410B1 (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
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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(B2) "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 front-loadable washing machine with a mounted inside a bearing sleeve on the rear wall of a tub, rigid support member via an at least approximately horizontally horizontal shaft flying drum mounted by a likewise attached to the back of the tub, flat motor directly driven.
  • Such drive devices are from the DE 39 27 426 A1 and the DE 43 41 832 A1 known.
  • the stator of the motor designed as a collectorless external rotor DC motor is mounted directly on the bearing sleeve of the rigid support member.
  • the shaft is mounted in the bearing sleeve and rotatably connected at its outer end to the rotor of the motor.
  • This runner is here a so-called external rotor, which engages over the stator windings as a pot and carries poles designed as permanent magnets.
  • the engine is additionally surrounded by a damping hood which dampens the noise emitted by the engine directly to the surrounding atmosphere.
  • a cup-shaped rotor in the case of DE 43 41 832 A1 additionally through the silencer hood
  • the known drive devices are also not available as an already assembled motor to the manufacturer of washing machines. Your stands and runners must be delivered separately and first assembled together in the washing machine work. Since usually in a washing machine factory special assembly facilities for completing engine assemblies are not available and not desired, the completion of the first to be connected to the tub container system stator assembly by the outer rotor assembly should be carried out only inaccurate regularly. Since extremely high demands are placed on the observance of a small air gap between the stator and rotor poles, which is as large as possible for each copy between the stator poles and the centered bearing, which are not to be met in the aforementioned assembly in a washing machine factory, the known ones Drive devices practically only very limited useful.
  • the invention has for its object to make the initially described drive means so that on the one hand cooling of the stator windings are easily ensured by the ambient air and the engine can not overheat in proper operation in requirements sizing and on the other hand completes the engine in the factory of the engine manufacturer and can be tested before it is to be installed at a washing machine manufacturer.
  • stator is connected to the rigid support member or instead of the rigid support member with the rear wall of the tub and a central bearing sleeve for the shaft of the laundry drum and for a shaft of the hub comprising the rotor, that at the outer end the shaft of the hub of the rotor, which has between its hub and the peripheral part a plurality of openings and at its periphery a pointing to the tub, bell-shaped flange centered and that the rotor is made entirely of magnetizable steel and with its bell-shaped flange over a Air gap the distributed on the stand, provided for receiving excitation windings of the stator sheet packs facing from the outside.
  • the motor according to the invention is an electronically commutated DC motor, whereby the heat generation can be kept extremely low. Maintenance is not required (no carbon brushes). The service life is limited only by possible bearing wear.
  • the engine receives an open design
  • the heat-generating components which are mainly the stator windings
  • the stator windings can be cooled from all sides by the ambient air. Even the low engine speed during the washing operation is then sufficient for the rotor to generate a heat-dissipating air movement.
  • the design of the rotor made entirely of steel simplifies the production enormously compared with the otherwise known "direct drive motors" with special dynamo plate packages and excitation windings.
  • the heat dissipation is not disturbed by material interruptions or changes.
  • the engine can also be completely assembled and tested in the factory of the engine supplier.
  • the appropriate assembly and testing aids are available so that always exactly the same assembled motor assemblies can be delivered to the washing machine factory.
  • this assembly can be mounted in place of a usual at this point casting-star or in addition to the rear wall of the tub system.
  • the stator of the complete motor is fastened by means of several screws at any point of the rear wall of the tub.
  • the shaft of the laundry drum is inserted from the in the hub of the rotor, which is already connected to the stator via the bearings, and secured with a central screw from behind.
  • parts of the rotor are designed to support an air movement arising during its rotary movement
  • the rotor can already move with a small rotational movement, e.g. at washing speed, produce enough cooling air for the stator windings.
  • a spoke-like shape of the rotor disk and a fan-like design of these spokes or a rear side of the rotor bell provided with fan-shaped formations of apertures can be used.
  • the motor can be designed as a so-called switched reluctance motor.
  • the rotor is made of ferromagnetic relatively poorly conductive steel.
  • the structure of the stator is comparable to that of the electronically commutated DC motor.
  • the advantage is in particular a cheaper design of the rotor (no expensive magnetic materials).
  • the centered connection of the rotor can be rotationally fixed to the shaft complemented by a positive profiled shaft, Profilnaben-, Plangefeder-, conical or keyway.
  • FIGURE shows a schematic representation of a washing machine-tub with an internally horizontally mounted laundry drum, the drive shaft is mounted together with the hub of the rotor bell in the bearing sleeve of the motor stator.
  • the tub 1 is mounted in a manner not shown here swinging in a housing, also not shown, a washing machine.
  • stator support member 10 On the rear wall 6 of the tub 1, a motor 9 is mounted, the stator support member 10 via the flange 11 rotatably connected to the rear wall 6 is connected.
  • the stator support member 10 carries on its outer circumference a plurality, preferably three, distributed around the circumference of the tub 1 fastening eyes, which are firmly connected by screws to the tub.
  • the stator support member 10 is additionally bolted via a mounting flange in a manner not shown here with the rear wall 6 of the tub 1.
  • stator support member 10 At the rear surface of the stator support member 10 a plurality of stator windings 12 are distributed, which face the inner surface of a bell 15 of the rotor 13 with the distance of a narrow air gap 14.
  • the magnetic reflux of the bell flange 15 is automatically given by its ring shape.
  • the motor can therefore initiate its drive torques directly over the shaft journal 7 in the laundry drum 4.
  • the stator 10 of the motor like a support member replaced by it, also absorbs all bearing forces.
  • the bearing sleeve 26 of the stator support member 10 forms bearing seats for rolling bearings, the inner rings are fitted with a good fit on the hub 31 of the laundry drum 4.
  • the shaft 7 is inserted into the hub 31 of the rotor 13 and secured by a central screw 30 so that it rotatably connects the rotor 13 via the hub 31 and the inner rings of the bearings with the laundry drum 4.
  • the rotor disk 13 is provided with openings 33 for better ventilation and cooling of the stator poles between its hub 26 and the bell flange 15.
  • These openings can advantageously be formed at their edges so that the access of cooling air through these openings is supported in terms of a fan effect.
  • so-called swirlers can still be attached to the openings or in their vicinity, which provide for a swirling of the cooling air, so that they get better contact with the stator windings.
  • the engine is designed here as an electronically commutated DC motor. But it can also be carried out in a not embraced by the invention embodiment as a so-called switched reluctance motor. In this case, at least the flange of the rotor or its inner support of a ferromagnetic relatively poorly conductive material.
  • the structure of the stator is comparable to that of an electronically commutated DC motor.
  • the advantage of the reluctance motor is, in particular, a more cost-effective design of the rotor (no expensive magnetic materials).

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 (3)

  1. Dispositif d'entraînement 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'un cuve, lequel tambour à linge est entraîné directement par un moteur plat également installé sur le côté arrière de la cuve, caractérisé en ce que le moteur (9) est un moteur à courant continu à commutation électronique, 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'entraînement 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'entraînement selon l'une des revendications 1 ou 2, 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 EP0988410B1 (fr) 2002-03-27
EP0988410B2 true 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
US6396190B1 (en) * 1999-06-07 2002-05-28 Lg Electronics Inc. Brushless dc motor in washing machine
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
US6700284B2 (en) 2001-03-26 2004-03-02 Emerson Electric Co. Fan assembly including a segmented stator switched reluctance fan motor
US7012350B2 (en) 2001-01-04 2006-03-14 Emerson Electric Co. Segmented stator switched reluctance machine
US6584813B2 (en) 2001-03-26 2003-07-01 Emerson Electric Co. Washing machine including a segmented stator switched reluctance motor
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
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
EP1797234A1 (fr) * 2004-10-08 2007-06-20 Daewoo Electronics Corporation Moteur du type a rotor exterieur et machine a laver de type a tambour comportant un tel moteur
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
EP0082828B1 (fr) * 1981-12-18 1987-02-04 Institut Cerac S.A. Machine à laver
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
WO1998056973A1 (fr) 1998-12-17
DE19724475A1 (de) 1998-12-17
DE59803525D1 (de) 2002-05-02
TR199902909T2 (xx) 2000-07-21
DE19724475B4 (de) 2010-08-05
EP0988410B1 (fr) 2002-03-27
US5996379A (en) 1999-12-07
EP0988410A1 (fr) 2000-03-29

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