EP0991805A1 - Dispositif d'entrainement pour lave-linge - Google Patents

Dispositif d'entrainement pour lave-linge

Info

Publication number
EP0991805A1
EP0991805A1 EP98929430A EP98929430A EP0991805A1 EP 0991805 A1 EP0991805 A1 EP 0991805A1 EP 98929430 A EP98929430 A EP 98929430A EP 98929430 A EP98929430 A EP 98929430A EP 0991805 A1 EP0991805 A1 EP 0991805A1
Authority
EP
European Patent Office
Prior art keywords
rotor
drive device
support part
motor
stator support
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
Application number
EP98929430A
Other languages
German (de)
English (en)
Other versions
EP0991805B2 (fr
EP0991805B1 (fr
Inventor
Klaus Bierbach
Reinhard Heyder
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=7833159&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0991805(A1) "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 EP0991805A1 publication Critical patent/EP0991805A1/fr
Application granted granted Critical
Publication of EP0991805B1 publication Critical patent/EP0991805B1/fr
Publication of EP0991805B2 publication Critical patent/EP0991805B2/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49002—Electrical device making
    • Y10T29/49009—Dynamoelectric machine

Definitions

  • the invention relates to a drive device for a washing machine with a laundry drum mounted within a bearing sleeve of a rigid support star attached to a bottom wall of a tub via an at least approximately horizontally lying shaft, the drive device being mountable on the back of the tub and comprising a flat motor with a Stator support part and excitation windings and with a rotor and magnetizable poles and drives the laundry drum directly.
  • the stator support part consists of an insulating part on which the field windings are mounted.
  • the insulating part is circular and pushed onto the bearing sleeve of the star.
  • the bell-shaped rotor surrounds this assembly unit and is attached to the shaft journal of the laundry drum with a screw cap, which projects beyond the bearing sleeve to the rear.
  • the stator support part with the excitation windings pre-assembled
  • the rotor bell must be placed on the shaft journal and screwed on.
  • the invention has for its object to design the drive device defined in such a way that the motor can be delivered preassembled and tested at the manufacturer's plant for washing machines, without any intervention being necessary when installing the motor on the washing machine, which requires compliance with the correct operation of the engine could jeopardize the tolerances required. It is also said to simplify assembly in the washing machine plant.
  • this object is achieved in that the stator support part and the rotor of the motor are detachably connected to one another for the duration of its transport until it is finally installed on the base wall of the tub in a relative position of the stator support part corresponding to the operating position.
  • a user e.g. the factory of a washing machine manufacturer.
  • stator support part and the rotor have identical hole patterns and at least one hole in the hole pattern in the stator support part is provided with a thread for a locking screw screwed in from the rotor. For security, at least two such locking screws will be provided.
  • At least one of the holes in the hole pattern in the stator support part is of the same diameter as that of the runner and has a smooth wall and is provided with a locking pin for securing the position during transport.
  • the rotor has the shape of a bell, the central part of which is designed as a flat disk and access holes on a circle with the same radius as the stator support part, fastening holes and such the support star has threaded holes for mounting the motor on the support star.
  • the drive device according to the invention can advantageously be developed in such a way that the stator support part is formed by a laminated core for the field windings.
  • the laminated core can be provided in a particularly advantageous manner on the side facing the supporting star with a plate-shaped ring, the outer edge of which extends over a labyrinth seal to the edge of the bell.
  • Both of the aforementioned embodiments also have the advantage that there are no other holes in the rotor bell for the locking screws and pins than those for fastening the motor to the support star.
  • the locked motor is first connected to the shaft journal of the washing drum via its rotor bell. Then a locking pin or one of the locking screws is pulled out and the rotational position of the motor covering the support star is sought and a mounting screw is screwed into the hole that has become free. Then proceed in sequence with all holes.
  • the drive device according to the invention is advantageously best protected in that the stator support part extends beyond the field windings and its edge forms a labyrinth seal with that of the bell.
  • stator support part and / or the bell is provided on the side facing the intermediate space with a circumferential collar which is connected to the counterpart on the Bell or on the stand support part forms a labyrinth seal.
  • stator support part has a central guide sleeve which fits over an outer cylinder of the bearing sleeve of the bearing sleeve via a defined sliding fit Tragsterns is settable.
  • This design facilitates the assembly of the motor on the washing machine in that the still locked motor with its guide sleeve can be placed securely on the bearing sleeve, so that the central bore for the attachment of the rotor bell to the shaft journal is automatically centered.
  • a particular advantage results from a further development of the washing machine according to the invention in that the guide sleeve has a cylinder fit on its outside with a collar attached to the side of the rotor facing the intermediate space, which sits in the transport position on the outer cylinder fit. Then the collar of the rotor together with the outer cylinder of the guide sleeve can already hold the stator support part and the rotor in the transport position.
  • stator support part and the rotor are solid, mounted on the support star
  • FIG. 2 shows the version according to FIG. 1 before mounting on the support star
  • Fig. 4 shows the version of FIG. 3 before mounting on the support star
  • Fig. 5 shows a third version with a guide sleeve on the stator support part, on which the runner's collar already secures the transport position.
  • the support star 1 has three beams. Its upward beam 2 lies in the plane of the drawing in FIGS. 1, 3 and 5. The two downward beams point backwards and forwards out of the plane of the drawing and are therefore not shown. 1, the support star 1 is fastened to the rear bottom wall 3 of the tub by means of screws, not shown. To support the shaft journal 4 of the laundry drum (not shown), the support star 1 has a bearing sleeve 5 with roller bearings.
  • a mounting flange 6 extends in the same direction from the supporting star 1, to which the motor 7 can be screwed.
  • the motor 7 shown in FIGS. 1 and 2 has a plate-shaped stator support part 8, the outer edge 9 of which extends to the edge of the rotor bell 10 and forms a labyrinth seal 11 with it.
  • the excitation windings 13 are distributed with their metal plates 14 on the circumference. They face the magnetizable poles 15 via an air gap, which are fastened to the inner circumference of the bell rim 16 of the rotor 10.
  • the stator support part 8 has on its surface facing the rotor 10 a ring of locking eyes 17 which extend to shortly before the inner surface of the rotor bell 10.
  • Your locking holes 18 are smooth-walled or threaded as at 19.
  • locking pins 20 are inserted into the smooth-walled locking holes 18, which correspond to corresponding locking holes 21 in the rotor bell 10.
  • At least one - better two or more - of the locking eyes 17 has threaded holes 19 for screwing in locking screws 22 with which the transport position can be fixed immovably.
  • a spacer sleeve 23 must be inserted before screwing in the locking screws 22.
  • the rotor bell of this motor 7 is attached to the threaded stub 24 of the shaft journal 4, screwed on and secured in a manner not shown by means of a screw in the position in which the stand supporting part 8 rests on the fastening eyes 6 of the supporting star 1. Then the fastening holes 25 in the stand supporting part 8 are brought into alignment with the fastening eyes 6 and fastening screws 26 are screwed in. The machining openings 27 in the rotor bell 10 serve as access to the fastening screws 26. The locking pins 20 and locking screws 22 are then unscrewed and the spacer sleeves 23 removed. Locking pins 20 and screws 22 and the spacer sleeves 23 can be returned to the engine plant as return parts.
  • the basic structure of the motor according to FIGS. 3 and 4 and its connection to the support star is similar to that of FIGS. 1 and 2.
  • the stator support part 8 according to FIGS is composed.
  • the laminated core also extends farther into the center of rotation than the laminated core 14 of the motor 7 in FIGS. 1 and 2, because the laminated core is provided with fastening holes 29 on a circle closer to the rotational center, by means of which the motor 30 on the fastening eyes 31 of the support star 1 can be mounted by fastening screws 26.
  • a plate-shaped ring 32 is also attached to the laminated core, which can also consist of sheet metal or plastic.
  • the ring 32 forms, together with the edge 16 of the rotor bell 10, a labyrinth-like seal 11.
  • a labyrinth seal 33 is formed from an inner edge of the Laminated core 28 is formed together with a circumferential collar 34 on the inside of the rotor bell 10.
  • the fastening holes 29 serve not only for fastening the motor 30 to the support star 1 but also for fixing the motor parts (stator and rotor) to one another before the motor 30 is installed.
  • the fastening holes 29 or part of them are provided with an internal thread. Its core diameter is at least as large as the nominal diameter of the fastening screws 26. However, the nominal diameter of the internal thread corresponds exactly to that of locking screws 35, with which the motor parts are fixed.
  • spacer sleeves 37 are also inserted into the processing openings 36 for access to the fastening screws 26, which keep a defined distance between the rotor bell 10 and the laminated core 28 when the locking screws 35 are screwed into the thread of the fastening holes 29.
  • some of the holes in this circle can only serve as fastening holes 29 and another part as locking holes. These two types of holes can also lie on circles with different radii for easier differentiation. Then the holes in the rotor bell 10 can also have different diameters, e.g. the machining holes 36 have a larger diameter than the holes provided for the spacer sleeves 37.
  • the installation of the motor 30 in the manufacturing plant for washing machines is similarly simple as in the example of FIGS. 1 and 2.
  • the rotor bell 10 is first screwed onto the threaded stub 24 until the outer surface of the ring 32 comes into contact with the fastening eyes 31. Then this position is secured in relation to the shaft journal 4 (screw or the like). If the fastening holes are different from the locking holes, the fastening screws 26 are now first turned through the machining holes 36 into the fastening eyes 31. Then the locking screws 36 and the spacer sleeves 37 are removed and returned to the manufacturer of the engine.
  • fastening holes and the locking holes are designed in the same way, only a few, for example three, of the holes will be used for locking by means of the spacer sleeves 37 and the locking screws 35. Then you can proceed as above. However, if all of these holes are, for example more than three, used for locking, then you have to proceed step by step during assembly, ie first a locking screw 35 and the associated spacer sleeve 37 are removed and a fastening screw 26 is inserted and screwed there. Then proceed step by step in the same way with the remaining holes.
  • the stator support part 38 on a circumferential collar 39 is also equipped with excitation windings 40 and laminated cores, which face poles 41 that can be magnetized via an air gap. These poles are fastened in the same way as in the examples described above on the inner circumference of the edge 42 of a rotor bell 43 which is provided with machining holes 44 for fastening screws 45.
  • the area created by the overlapping flange 47 of the stator support part 38 serves as the labyrinth seal 46. There is no need for a special seal on the inside because this area is already dustproof due to the construction described.
  • the stator support part 38 has a central guide sleeve 48, the outer cylinder surface 49 of which, together with the short inner cylindrical surface 50 of an annular bead 51 on the rotor bell 43, forms a sliding fit (e.g. H7 / j6) which serves to secure the position of the motor parts during transport. In this securing position, the motor parts are fixed with transport securing screws 52 and are seated against one another with their end faces.
  • the laminated core of the excitation windings 40 is offset inward from the poles 41 by, for example, 6 to 7 mm.
  • the guide sleeve 48 With its inner cylinder surface, the guide sleeve 48 also forms a sliding fit (for example also H7 / J6) with respect to the outer cylinder surface of the bearing sleeve 5.
  • the guide sleeve 48 is pushed onto the bearing sleeve 5 and the rotor bell 43 is guided with its central hole into the serration of the stub shaft 53.
  • the central shaft screw 54 is tightened slightly and the transport securing screws 52 are unscrewed. After the fastening screws 45 are tightened, the shaft screw can also be tightened.
  • the spacer 55 between the stator support part 38 and the support star 1 on the one hand and the spacer 56 between the rotor bell 43 and a shoulder 57 on the shaft journal 4 ensure the correct dimensional coordination of the motor parts to one another in the installed state.
  • All of the examples of the drive device according to the invention that are presented have an important advantage in common: compared to previous known proposals, they manage with fewer or smaller roller bearings for the shaft journal 4.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Manufacture Of Motors, Generators (AREA)
  • Permanent Magnet Type Synchronous Machine (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
  • Main Body Construction Of Washing Machines And Laundry Dryers (AREA)
  • Iron Core Of Rotating Electric Machines (AREA)
  • Motor Or Generator Frames (AREA)

Abstract

Un tambour de lavage est monté, par l'intermédiaire d'un arbre (4) au moins approximativement horizontal, à l'intérieur d'une douille-palier (5) d'un croisillon de support (1) rigide fixé sur une paroi de fond (3) d'un bac à lessive. Le dispositif d'entraînement se monte sur la face arrière du bac à lessive. Il est constitué d'un moteur plat (7) comportant un support de stator (8) et des enroulements inducteurs (13), ainsi qu'un rotor (10) et des pôles magnétisables (15), et entraîne directement le tambour de lavage. Afin que le moteur (7) soit livré pré-assemblé et contrôlé à l'usine productrice des lave-linge et puisse y être monté dans ces derniers de façon simplifiée, sans que lors du montage du moteur (7) sur le lave-linge soit encore nécessaire une intervention risquant de mettre en péril le respect des tolérances requises pour le bon fonctionnement du moteur, le support de stator (8) et le rotor (10) du moteur (7) sont solidarisés de manière amovible, pendant la durée de transport du moteur jusqu'à son montage final, sur la paroi de fond (3) du bac à lessive, dans une position relative du support de stator (8) par rapport au rotor (10) correspondant à la position de fonctionnement.
EP98929430A 1997-06-20 1998-06-08 Dispositif d'entrainement pour lave-linge Expired - Lifetime EP0991805B2 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19726246 1997-06-20
DE19726246A DE19726246A1 (de) 1997-06-20 1997-06-20 Antriebsvorrichtung für eine Waschmaschine
PCT/EP1998/003422 WO1998059102A1 (fr) 1997-06-20 1998-06-08 Dispositif d'entrainement pour lave-linge

Publications (3)

Publication Number Publication Date
EP0991805A1 true EP0991805A1 (fr) 2000-04-12
EP0991805B1 EP0991805B1 (fr) 2002-01-16
EP0991805B2 EP0991805B2 (fr) 2007-01-03

Family

ID=7833159

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98929430A Expired - Lifetime EP0991805B2 (fr) 1997-06-20 1998-06-08 Dispositif d'entrainement pour lave-linge

Country Status (6)

Country Link
US (1) US6131422A (fr)
EP (1) EP0991805B2 (fr)
DE (2) DE19726246A1 (fr)
ES (1) ES2172155T5 (fr)
TR (1) TR199903158T2 (fr)
WO (1) WO1998059102A1 (fr)

Families Citing this family (29)

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Publication number Priority date Publication date Assignee Title
DE19755537A1 (de) * 1997-12-13 1999-06-17 Fhp Motors Gmbh Transportsicherung für einen Motorbausatz eines kollektorlosen Gleichstrommotors als Außenläufermotor
DE19819410A1 (de) * 1998-04-30 1999-12-30 Miele & Cie Verfahren zur Herstellung eines Wäschebehandlungsgeräts bzw. zur Montage eines Antriebsmotors bei einem solchen Wäschebehandlungsgerät
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
DE19922611A1 (de) * 1999-05-17 2000-11-23 Bsh Bosch Siemens Hausgeraete Antriebsvorrichtung für eine Waschmaschine
TW472094B (en) * 1999-05-19 2002-01-11 Toshiba Corp Rolling drum type washing machine
AU782017B2 (en) 1999-10-18 2005-06-30 Lg Electronics Inc. A driving unit for a drum type washing machine
AU753411B2 (en) 1999-10-19 2002-10-17 Lg Electronics Inc. Structure of driving unit in drum type washing machine
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
DE10060940A1 (de) * 2000-12-07 2002-06-13 Bsh Bosch Siemens Hausgeraete Motor und Verfahren zur Montage
JP3994673B2 (ja) * 2001-02-28 2007-10-24 松下電器産業株式会社 ブラシレスモータ
CN1314188C (zh) * 2001-04-02 2007-05-02 Lg电子株式会社 用于洗衣机的马达
JP2002315245A (ja) * 2001-04-09 2002-10-25 Moric Co Ltd 永久磁石式発電機のロータ
KR20050119269A (ko) * 2004-06-16 2005-12-21 삼성전자주식회사 드럼세탁기
KR20060027678A (ko) * 2004-09-23 2006-03-28 삼성전자주식회사 세탁기
US7342334B2 (en) * 2004-10-29 2008-03-11 Emerson Electric Co. Insulated stator with wire routing element
KR101022222B1 (ko) * 2004-11-17 2011-03-17 삼성전자주식회사 세탁기
KR101187068B1 (ko) * 2005-06-30 2012-09-27 엘지전자 주식회사 드럼세탁기의 터브 구조
EP1795641A1 (fr) * 2005-12-06 2007-06-13 Electrolux Home Products Corporation N.V. Machine à laver le linge à usage domestique avec moteur d'entrainement compact
DE102007030508B4 (de) * 2007-06-30 2014-10-16 Schaeffler Technologies Gmbh & Co. Kg Waschmaschinen-Direktantrieb
KR101387882B1 (ko) * 2007-10-31 2014-04-29 엘지전자 주식회사 모터 및 그 모터를 이용하는 세탁기
ES2407431T3 (es) * 2008-05-14 2013-06-12 Whirlpool Corporation Lavadora con un sistema de accionamiento directo
US8405268B2 (en) 2010-02-18 2013-03-26 Nidec Motor Corporation Stator with monolithic mounting bosses and assembly comprising the same
DE102012203953A1 (de) * 2012-03-14 2013-09-19 Zf Friedrichshafen Ag Kupplungsaktuator und Verfahren zum Einbauen eines Kupplungsaktuators
US8907385B2 (en) 2012-12-27 2014-12-09 Taiwan Semiconductor Manufacturing Company, Ltd. Surface treatment for BSI image sensors
DE102013000417A1 (de) * 2013-01-14 2014-07-17 Dorma Gmbh & Co. Kg Antriebseinheit, inbesondere für eine Karusseltür, mit einem elektronisch kommutierten Vielpolmotor
CN109565208B (zh) * 2016-08-05 2021-06-08 日本电产株式会社 马达
US11346032B2 (en) * 2019-11-11 2022-05-31 Haier Us Appliance Solutions, Inc. Washing machine appliance and motor assembly therefor

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Publication number Priority date Publication date Assignee Title
DE3401776A1 (de) 1984-01-19 1985-08-01 Papst-Motoren GmbH & Co KG, 7742 St Georgen Kollektorloser gleichstrommotor mit eisenloser statorwicklung
DE3927426A1 (de) 1989-08-19 1991-02-21 Mulfingen Elektrobau Ebm Antriebseinheit fuer eine waesche-behandlungsmaschine

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NL291769A (fr) * 1962-04-19
US3254545A (en) * 1963-10-08 1966-06-07 Fichtel & Sachs Ag Dual-speed transmission for a washing machine
US3484934A (en) * 1967-08-28 1969-12-23 Emerson Electric Co Method of manufacturing dynamoelectric machine
DE227993C (fr) † 1968-10-11
EP0082828B1 (fr) * 1981-12-18 1987-02-04 Institut Cerac S.A. Machine à laver
JPH06168429A (ja) * 1992-11-30 1994-06-14 Matsushita Electric Ind Co Ltd 回転シリンダの着脱方法
DE4335966C2 (de) * 1993-10-21 1998-07-16 Fhp Motors Gmbh Antriebsvorrichtung für eine Wasch- oder eine ähnliche Maschine mit einem kollektorlosen Gleichstrommotor
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
DE19724930A1 (de) † 1997-06-12 1998-12-17 Bosch Siemens Hausgeraete Antriebsvorrichtung für eine Waschmaschine

Patent Citations (2)

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Publication number Priority date Publication date Assignee Title
DE3401776A1 (de) 1984-01-19 1985-08-01 Papst-Motoren GmbH & Co KG, 7742 St Georgen Kollektorloser gleichstrommotor mit eisenloser statorwicklung
DE3927426A1 (de) 1989-08-19 1991-02-21 Mulfingen Elektrobau Ebm Antriebseinheit fuer eine waesche-behandlungsmaschine

Also Published As

Publication number Publication date
ES2172155T3 (es) 2002-09-16
TR199903158T2 (xx) 2001-03-21
WO1998059102A1 (fr) 1998-12-30
DE19726246A1 (de) 1998-12-24
DE59802647D1 (de) 2002-02-21
US6131422A (en) 2000-10-17
EP0991805B2 (fr) 2007-01-03
ES2172155T5 (es) 2007-08-16
EP0991805B1 (fr) 2002-01-16

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