EP0780507B1 - Dispositif d'entraínement pour machine à laver à chargement frontal - Google Patents

Dispositif d'entraínement pour machine à laver à chargement frontal Download PDF

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Publication number
EP0780507B1
EP0780507B1 EP96118606A EP96118606A EP0780507B1 EP 0780507 B1 EP0780507 B1 EP 0780507B1 EP 96118606 A EP96118606 A EP 96118606A EP 96118606 A EP96118606 A EP 96118606A EP 0780507 B1 EP0780507 B1 EP 0780507B1
Authority
EP
European Patent Office
Prior art keywords
rotor
motor
stator
hub
shaft
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
EP96118606A
Other languages
German (de)
English (en)
Other versions
EP0780507A3 (fr
EP0780507A2 (fr
Inventor
Jörg Dipl.-Ing. Skrippek (FH)
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=7780768&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0780507(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 EP0780507A2 publication Critical patent/EP0780507A2/fr
Publication of EP0780507A3 publication Critical patent/EP0780507A3/fr
Application granted granted Critical
Publication of EP0780507B1 publication Critical patent/EP0780507B1/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
    • 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 
    • D06F37/40—Driving arrangements  for driving the receptacle and an agitator or impeller, e.g. alternatively

Definitions

  • the invention relates to a drive device for a loadable washing machine with one inside a bearing sleeve on the back wall of a tub attached, rigid support part via an at least approximately horizontal shaft overhung laundry drum, which is also on the back of the tub attached flat motor is driven directly.
  • Such drive devices are from DE 39 27 426 A1 and DE 43 41 832 A1 known. It contains the stator of the DC motor, which is designed as a collectorless external rotor Motor directly attached to the bearing sleeve of the rigid support part. The wave is stored in the bearing sleeve and at its outer end rotatably with the rotor of the motor connected. This rotor is a so-called external rotor, the stator windings as a pot overlaps and carries poles designed as permanent magnets.
  • the motor is additionally surrounded by an insulation hood, the noise emitted by the engine directly to the surrounding atmosphere attenuates.
  • the known drive devices encapsulate the stand, which is caused by the heat of electricity in its Windings are exposed to a significant temperature load through a cup-shaped designed rotor (in the case of DE 43 41 832 A1 additionally through the sound insulation hood) so strong that cooling of the engine fails at all. Above all, this will be supported by the fact that such a direct driving motor necessarily because of its low own speeds hardly to own cooling by the rotating Runner can come. Therefore, the known drive devices are practical only usable if it is protected from rapid overheating by external cooling become.
  • EP 0 410 784 A1 also provides a flat motor for a laundry drum known with a vertical axis, the rotor through holes in the rotor disc to be cooled. However, since his runner was enclosed on both sides effective cooling should hardly be given by this measure.
  • the known drive devices are also not as a fully assembled engine available to the washing machine manufacturer. Your stands and runners must delivered separately and assembled in the washing machine factory. There in usually in a washing machine factory special assembly facilities for completion of motor assemblies are not available and are also not desired, the Completion of the stand assembly to be initially connected to the tub system due to the external rotor assembly only inaccurately. Because of that Adherence to a small air gap that is as large as possible for each specimen extremely high between the stator and rotor poles and the centered bearing Requirements are made in the aforementioned assembly in a washing machine factory are not to be met, the known drive devices are practical only of limited use.
  • the invention is based, so the drive device described above to design that on the one hand the cooling of the stator windings by the ambient air is improved and the engine is in proper operation with requirements Dimensioning can not overheat as well as the engine in the factory of the other hand Engine manufacturer can be completed and checked before it is at a washing machine manufacturer to be installed.
  • this object is achieved in that the stator of the motor on the rigid support part or even as a rigid component instead of a rigid support part with the Back wall of the tub is connected and a central bearing sleeve for the case assembled motor from the tub from the insertable shaft of the laundry drum and for a rotor encompassing the shaft has that at the outer end of the shaft the hub of the runner, which has a variety of between its hub and the peripheral portion Breakthroughs and on its circumference a bell-like pointing towards the tub Has flange, is centered and that the rotor with its on the inner circumference of the bell-shaped flange distributed magnetizable poles over a minimal Air gap that is distributed on the stator support part, for receiving excitation windings of the Stand provided pole packs from the outside.
  • the design according to the invention gives the motor an open design, the Heat-generating components, above all, are the field windings from all sides can be cooled by the ambient air. Even the low engine speed at Washing mode is then sufficient for the runner to move the air away from the heat generated.
  • the engine can also be complete in the manufacturer's factory assembled and checked.
  • the appropriate assembly and testing aids are there are available, so that motor assemblies are always precisely Washing machine plant can be delivered.
  • This assembly can be used here one of the usual cast support brackets at this point or in addition to the rear wall of the tub system. For this, the stand of the complete Motor using several screws at any point on the rear wall of the tub attached. Then the shaft of the washing drum from the into the hub of the Inserted rotor, which is already connected to the stator via the roller bearings, and with secured by a central screw from behind.
  • These operations are those of fastening a support arm and a pulley in accordance with the washing machine constructions that have been customary up to now extremely similar, so that none of the assembly staff completely other operations must be learned.
  • the openings and / or one between the hub and the peripheral part of the rotor arranged rotor plate to support one in the Rotary movement of the rotor resulting air movement are formed, the rotor even with slight rotation, e.g. at washing speed, enough cooling air for the Produce stator windings. You can do this, for example, a spoke-like Use the shape of the rotor disc and a fan-like design of these spokes.
  • the motor is an electronic according to an advantageous embodiment of the invention commutated DC motor
  • the heat development can also be extremely low being held. Maintenance is not necessary (no carbon brushes). The lifespan is only limited by possible bearing wear.
  • the runner is at least partially from an annular package of dynamo sheets and permanent magnet segments arranged on them fitted.
  • the permanent magnet segments result in a powerful one Torque, and the dynamo sheets form a particularly good magnetic Reflux.
  • the production of the required sheet metal packages is possible through automation of the Stacking process relatively uncomplicated and inexpensive.
  • the pole packs of the stator are advantageously composed of dynamo sheets and carry the excitation windings.
  • the centered connection of the Rotor rotatably on the shaft through a positive profile shaft, profile hub, feather key, Taper or keyway connection may be added.
  • the motor can be used as so-called switched reluctance motor.
  • the Rotor made of a material that is relatively poorly conductive in terms of ferromagnetic properties.
  • the structure of the The stator is comparable to that of the electronically commutated DC motor.
  • the particular advantage is that the runner is made more cost-effective (none expensive magnetic materials).
  • the tub 1 is also not in a manner not shown here illustrated housing of a washing machine mounted swinging.
  • the shaft 7, which on the rear wall 8 of the laundry drum 4 rotates with it connected is.
  • the stator of a motor 9 On the rear wall 6 of the tub 1, the stator of a motor 9 is mounted, the Stand supporting part 10 is connected to the rear wall 6 in a rotationally fixed manner via the flange 11.
  • the stator support member 10 On the rear surface of the stator support member 10 are a plurality of excitation windings 12 of the Stator distributed and correspond alternately during the rotation of the rotor 13 with its poles 14, which here consist of permanent magnets and also segment-like are distributed around the circumference of the rotor 13.
  • the magnetic return flow of the magnet segments 14 is via a package of dynamo sheets inserted into the bell flange 15 16 formed.
  • the motor can drive its torque directly via the Introduce the shaft journal 7 into the washing drum 4.
  • the stator of the motor takes off via its bearing sleeve 22, like a supporting star replaced by it, also all bearing forces.
  • the rear wall 8 of the laundry drum 4 is stiffened with a support 17, the hub 18 is rotatably connected to a shaft journal 7.
  • the stand support part 10 carries several, preferably three, around the circumference of the tub on its outer circumference 1 distributed mounting eyes 23, which by means of screws 24 on the tub 1 welded tabs 25 a fixed connection to the tub result.
  • the stand support member 10 is screwed to a special support member 20 (Screws 19), which in turn stiffened the rear wall 6 of the tub 1 and with you are screwed (screws 24).
  • the stand support part 10 together with the special support part 20 similar to the example shown in FIG. 1 in one piece be executed. Then the separate screwing of the bearing part 21 for the Stator poles (consisting of windings 12 and laminated cores 32) with the special Support part 20 is eliminated.
  • the bearing sleeve 22 of the stand supporting part 10 forms bearing seats 26 and 27 for rolling bearings 28 and 29, the inner rings with a good fit on the shaft journal 7 of the laundry drum 4 are attached.
  • the shaft 7 is in the hub 31 of the rotor 13 inserted and secured by a central screw 30 so that it is the runner 13 via the hub 31 and the inner rings of the roller bearings 28 and 29 rotatably with the Laundry drum 4 connects.
  • the rotor disk 34 between the hub 31 and that as a support ring for the magnetic segments 16 serving bell flange 15 of the rotor 13 is for better ventilation and cooling the stator poles 12, 32 equipped with openings 33.
  • These breakthroughs can advantageously be shaped at their edges so that the access of cooling air through them Breakthroughs in the sense of a fan effect is supported.
  • the cooling effect can so-called at the openings 33 or in the vicinity thereof Swirlers are attached, which cause a swirling of the cooling air so that they receives better contact with the stator poles 12, 32.
  • the motor is designed here as an electronically commutated DC motor. He can but can also be designed as a so-called switched reluctance motor. In this case there is at least the flange of the rotor or its inner support of a ferromagnetic relatively poorly conductive material.
  • the structure of the stand is one electronically commutated DC motor comparable.
  • the advantage of the reluctance motor consists in particular in a cheaper design of the runner (no expensive Magnetic materials).

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Main Body Construction Of Washing Machines And Laundry Dryers (AREA)
  • Iron Core Of Rotating Electric Machines (AREA)
  • Cleaning By Liquid Or Steam (AREA)
  • Permanent Magnet Type Synchronous Machine (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
  • Brushless Motors (AREA)
  • Vending Machines For Individual Products (AREA)
  • Motor Or Generator Frames (AREA)
  • Detail Structures Of Washing Machines And Dryers (AREA)

Claims (7)

  1. Dispositif d'entraínement pour un lave-linge à chargement frontal comprenant un tambour à linge (4) monté en porte à faux, par le biais d'un arbre (7) au moins à peu près horizontal, à l'intérieur d'un support cylindrique (22) d'un élément porteur rigide installé sur la paroi postérieure (6) d'une cuve (1), lequel tambour à linge est entraíné directement par un moteur (9) plat également installé sur le côté postérieur de la cuve (1), caractérisé en ce que le stator (10, 12, 21, 22, 32 dans la Figure 2) du moteur (9) sur l'élément porteur (20) rigide est relié à la paroi postérieure (6) de la cuve (1) ou est relié lui-même, en tant qu'élément de construction rigide (10, 11, 12 et 22 dans la Figure 1), à la paroi postérieure (6) à la place d'un élément porteur rigide, et qu'il est pourvu d'un support cylindrique (22) central pour l'arbre (7) du tambour à linge (4), qui peut être introduit par la cuve (1) lorsque le moteur (9) est monté, et pour un moyeu (31) du rotor entourant l'arbre, en ce que le moyeu (31) du rotor (13) est fixé de manière centrée sur l'extrémité extérieure de l'arbre, lequel rotor 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), et en ce que le rotor (13) vient depuis l'extérieur, avec ses pôles (14) magnétisables répartis sur la circonférence intérieure de la bride (15) en forme de cloche, en face des empilages de tôles polaires (32) répartis sur la partie de support de stator (10) et prévus pour recevoir les enroulements inducteurs (12) du stator (10, 11, 12, 21, 22, 32), en ménageant un entrefer minimum.
  2. Dispositif d'entraínement selon la revendication 1, caractérisé en ce que les ouvertures (33) et/ou un disque (34) situé entre le moyeu (31) et la partie circonférentielle du rotor (13) sont exécutés de manière à favoriser un mouvement d'air se produisant lors du mouvement de rotation du rotor (13).
  3. Dispositif d'entraínement selon l'une des revendications 1 ou 2, caractérisé en ce que le moteur (9) est un moteur à courant continu à commutation électronique.
  4. Dispositif d'entraínement selon la revendication 3, caractérisé en ce que le rotor (13) est formé, au moins en partie, d'un paquet (16) annulaire de tôles pour dynamo sur lesquelles sont situés des segments d'aimant permanent (14).
  5. Dispositif d'entraínement selon l'une des revendications 3 ou 4, caractérisé en ce que les empilages de tôles polaires (32) du stator (10, 11, 12, 21, 22, 32) sont composés de tôles pour dynamo et portent les enroulements inducteurs (12).
  6. Dispositif d'entraínement selon l'une des revendications 1, 2, 4 ou 5, caractérisé en ce que le moteur est un moteur "à réluctance couplé".
  7. Dispositif d'entraínement selon l'une quelconque des revendications précédentes, caractérisé en ce que la liaison centrée (30) du rotor (13) sur l'arbre (7) est une liaison par conjugaison de forme avec un arbre profilé, un moyeu profilé, une clavette, une rainure de clavette ou une liaison conique qui empêche une torsion.
EP96118606A 1995-12-20 1996-11-19 Dispositif d'entraínement pour machine à laver à chargement frontal Expired - Lifetime EP0780507B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19547745 1995-12-20
DE19547745A DE19547745A1 (de) 1995-12-20 1995-12-20 Antriebsvorrichtung für eine von vorn beschickbare Waschmaschine

Publications (3)

Publication Number Publication Date
EP0780507A2 EP0780507A2 (fr) 1997-06-25
EP0780507A3 EP0780507A3 (fr) 1998-07-15
EP0780507B1 true EP0780507B1 (fr) 2002-12-11

Family

ID=7780768

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96118606A Expired - Lifetime EP0780507B1 (fr) 1995-12-20 1996-11-19 Dispositif d'entraínement pour machine à laver à chargement frontal

Country Status (11)

Country Link
US (1) US5862686A (fr)
EP (1) EP0780507B1 (fr)
JP (1) JP3863612B2 (fr)
KR (1) KR100427442B1 (fr)
CN (1) CN1230964C (fr)
AT (1) ATE229584T1 (fr)
AU (1) AU720902B2 (fr)
BR (1) BR9606097A (fr)
DE (2) DE19547745A1 (fr)
ES (1) ES2188712T3 (fr)
TR (1) TR199601023A2 (fr)

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US8677788B2 (en) 1999-10-18 2014-03-25 Lg Electronics Inc. Method of forming a drum type washing machine having a driving unit

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JP4044602B1 (ja) * 2007-02-14 2008-02-06 松下電器産業株式会社 洗濯機のモータの組み立て方法と洗濯機のモータ
US20110091314A1 (en) * 2009-10-15 2011-04-21 Asia Vital Components Co., Ltd. Fan structure
US8353671B2 (en) * 2009-10-15 2013-01-15 Asia Vital Components Co., Ltd. Fan with pressurizing structure
US8405268B2 (en) 2010-02-18 2013-03-26 Nidec Motor Corporation Stator with monolithic mounting bosses and assembly comprising the same
DE112011102148T5 (de) 2010-06-25 2013-05-29 Fisher & Paykel Appliances Limited Rotor für einen Motor, und Motor und den Rotor aufweisendes Gerät, und Verfahren zur Herstellung eines Rotors
DE102013000417A1 (de) * 2013-01-14 2014-07-17 Dorma Gmbh & Co. Kg Antriebseinheit, inbesondere für eine Karusseltür, mit einem elektronisch kommutierten Vielpolmotor
CN105796036B (zh) * 2014-12-30 2020-04-28 青岛海尔洗衣机有限公司 洗鞋机
KR102252508B1 (ko) 2015-01-05 2021-05-14 엘지전자 주식회사 세탁기
CN105862342A (zh) * 2016-04-29 2016-08-17 无锡小天鹅通用电器有限公司 洗衣机
KR102646735B1 (ko) 2016-11-04 2024-03-13 삼성전자주식회사 세탁기용 모터 및 이를 구비하는 세탁기
CN107482874B (zh) * 2017-09-18 2019-11-26 安徽沃弗电力科技有限公司 一种气隙不变的永磁调速器
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DE3927426B4 (de) 1989-08-19 2006-02-23 Ebm-Papst Mulfingen Gmbh & Co. Kg Antriebseinheit für eine Wäsche-Behandlungsmaschine
DE4335966C2 (de) * 1993-10-21 1998-07-16 Fhp Motors Gmbh Antriebsvorrichtung für eine Wasch- oder eine ähnliche Maschine mit einem kollektorlosen Gleichstrommotor
DE4341832C2 (de) 1993-12-08 2001-11-08 Fhp Motors Gmbh Waschautomat

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8677788B2 (en) 1999-10-18 2014-03-25 Lg Electronics Inc. Method of forming a drum type washing machine having a driving unit

Also Published As

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EP0780507A3 (fr) 1998-07-15
US5862686A (en) 1999-01-26
AU720902B2 (en) 2000-06-15
KR970043521A (ko) 1997-07-26
JPH09182369A (ja) 1997-07-11
ES2188712T3 (es) 2003-07-01
ATE229584T1 (de) 2002-12-15
TR199601023A2 (tr) 1997-07-21
KR100427442B1 (ko) 2004-07-23
DE59609971D1 (de) 2003-01-23
CN1180260A (zh) 1998-04-29
BR9606097A (pt) 1998-11-03
CN1230964C (zh) 2005-12-07
JP3863612B2 (ja) 2006-12-27
DE19547745A1 (de) 1997-06-26
AU7540496A (en) 1997-06-26
EP0780507A2 (fr) 1997-06-25
TR199601023A3 (fr) 1997-07-21

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