EP1141466B1 - Drive device for a front-loading washing machine - Google Patents

Drive device for a front-loading washing machine Download PDF

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Publication number
EP1141466B1
EP1141466B1 EP19990963516 EP99963516A EP1141466B1 EP 1141466 B1 EP1141466 B1 EP 1141466B1 EP 19990963516 EP19990963516 EP 19990963516 EP 99963516 A EP99963516 A EP 99963516A EP 1141466 B1 EP1141466 B1 EP 1141466B1
Authority
EP
European Patent Office
Prior art keywords
drive device
characterised
device according
motor
rear wall
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
EP19990963516
Other languages
German (de)
French (fr)
Other versions
EP1141466A1 (en
Inventor
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 Hausgaraete 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
Priority to DE1998159567 priority Critical patent/DE19859567A1/en
Priority to DE19859567 priority
Application filed by BSH Bosch und Siemens Hausgaraete GmbH filed Critical BSH Bosch und Siemens Hausgaraete GmbH
Priority claimed from SI9930477T external-priority patent/SI1141466T1/en
Priority to PCT/EP1999/009872 priority patent/WO2000037731A1/en
Publication of EP1141466A1 publication Critical patent/EP1141466A1/en
Publication of EP1141466B1 publication Critical patent/EP1141466B1/en
Application granted granted Critical
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06FLAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F37/00Details specific to washing machines covered by groups D06F21/00 - D06F25/00
    • D06F37/30Driving arrangements 
    • D06F37/304Arrangements or adaptations of electric motors

Description

The invention relates to a drive device for a loadable from the front Laundry treatment machine with at least approximately on a shaft laundry drum mounted horizontally in a carrying part, which is supported by one on its Rear arranged motor is driven directly, the one on the rotor arranged magnetizable poles from the outside on the stand for receiving Excitation windings provided laminated core over a minimal gap face.

Such a drive device is known from DE 195 47 745 A1. In it the stand is attached to a rigid supporting part, which in turn is attached to the rear wall a tub is connected. The supporting part has a central bearing sleeve for the shaft of the washing drum and for a scar of the Runner on. The hub carries a bell-like pointing towards the tub Flange, on the inner circumference of which magnetizable poles are distributed. The Magnetizable poles are located on the stand via a minimal air gap distributed, intended to accommodate excitation windings of the stator Sheet metal packages from the outside.

The invention is based on the object, the one mentioned To design the drive device so that it has a simple, compact structure Has.

This object is achieved in that the rear wall of the Washing drum a extending in the direction of the longitudinal axis of the shaft has bell-shaped recess, on the inner periphery facing the shaft the magnetizable poles of the rotor are distributed and that the laminated core of the Stand are attached to the supporting part protruding into the recess.

The invention provides a material and space-saving drive device created. The fact that the laundry drum has an indentation inwards has, the drive motor is housed inside the laundry drum, so that between the back of the laundry drum and the back wall of the Laundry treatment machine d. H. the dryer or the Washing machine, no space for a directly driving the laundry drum Flat motor or for a drive belt must be provided.

In contrast to the need to hold the magnetizable poles of the rotor State of the art, no additional component is to be provided; Rear wall of the laundry drum designed so that it directly the poles receives. This eliminates the complex construction of one, for example bell-shaped flange, as is provided according to DE 195 47 745 A1.

Part of the supporting part is also the bearing sleeve for the shaft of the Laundry drum and serves as a stator carrier for receiving the stator packs. Warmth, which arises during the operation of the engine is metallic and therefore good thermally conductive back wall of the laundry drum is removed and is used for heating the laundry or the wash liquor used.

Due to the focus of the laundry drum, the influence of Imbalance or wobble reduced. The support part is a metal casting, for example an aluminum casting or an iron gray casting.

The motor is, for example, a reluctance motor, with the magnetizable poles of the rotor are designed as layered iron sheets, or it is a electronically commutated DC motor, the poles as Permanent magnets are formed.

In the following, the invention is illustrated in one embodiment using the only one Figure explained in more detail. This shows a sectional view of a laundry drum and a drive device.

Other special embodiments of the invention are pointed out in claims 2-12.

A laundry drum 1 (FIG. 1) is essentially connected to a fixed one horizontally lying shaft 2 in a serving as a bearing sleeve for the shaft 2 bell-shaped flange 3 of a rear wall 4, a tub 5 rotatable stored. The flange 3 and the rear wall 4 form the supporting part for the Laundry drum 1. The laundry drum 1 is at the front via an opening 6 Laundry can be filled. The laundry drum 1 has a rear wall 7 which has a bell-shaped depression 8 symmetrical to the longitudinal axis of the shaft 2. The Indentation 8 has a jacket wall connecting the bottom 9 to the rear wall 7 10, which is substantially cylindrical or conical. The bottom 9 of the Indentation 8 is connected to a pin 11, for example welded to it Wave 2 connected. This is via bearings 12, 13, which are ball bearings, for example, mounted in the flange 3, which forms the bearing sleeve for the shaft 2.

The flange 3 also forms the stand for receiving laminated cores 14 of the motor. The laminated cores 14 carry stator windings 15. On the inner circumference the jacket wall 10 of the recess 8 are magnetizable poles 16 of the rotor distributed. These are available to the laminated cores 14 via a minimal air gap 17 across from. The shaft 2 ends on that facing away from the laundry drum 1 Side in a secured against the bearing 13 via a spring ring 18 Wave stub 19.

In the illustrated embodiment, the rear wall 4 carries the as a supporting part for the Shaft 2 and thus serving for the washing drum 1 flange 3. To Soapy water entering the area of the engine, i. H. the laminated cores 14 and the pole 16, is to be prevented between the rear wall 7 and the rear wall 4 an annular seal 20 with, for example, substantially V-shaped Cross section arranged.

In the case of a tumble dryer or one that is hermetically sealed to the outside Washing drum 1 of a washing machine does not require the outer tub 5. In in this case the flange 3 is connected to a supporting part which, in turn, for example via vibration dampers, is connected to the housing. The The supporting part can also extend in the direction of the rear wall 4.

The flange 3 is preferably a metal casting; it consists of, for example cast aluminum or is an iron gray cast iron part. The laminated cores 14 are either designed as rings around the flange 3 or as Circular segments. Likewise, the poles 16 as the jacket wall 10 from the inside covering rings or as segments. Instead of a radial one The arrangement of the laminated cores 14 and the poles 16, as shown, can be the poles 16 also be arranged axially to the laminated cores 14. In this case the poles are 16 attached to the bottom 9 of the recess 8. The laminated cores 14 are available to you, including the field windings compared to the illustrated embodiment rotated by 90 °, on the flange 3 opposite. In this case, the depression has 8 compared to the illustrated embodiment a smaller depth, but one larger diameter in the radial direction.

In addition to its function for dissipating heat from the engine, the depression 8 also for the sound absorption of engine noises.

The bearing 12 is on its side opposite the bottom 9 by a Sealing ring 21 encapsulated.

The washing drum 1 is either by a commutated DC motor or driven a switched reluctance motor. In the case of an electronic commutated DC motors are the magnetizable poles Permanent magnets. In the case of a switched reluctance motor, they are from layered iron sheets.

It is understood that in the rear wall 4 in the area between the seal 20 and the flange 3 to improve the cooling effect of the engine breakthroughs can be attached, which cause a swirling of the cooling air.

The invention provides a compact drive device, wherein a substantially horizontally mounted laundry drum 1 a Has rear wall 7 with a bell-shaped recess 8. In the field of Recess 8, the laundry drum 1 is connected to the shaft 2 carrying it. On bell-shaped flange 3 of a supporting part or a rear wall 4 of a Suds container 5, which surrounds the shaft 2 as a bearing bush, carries laminated cores 14 with stator windings 15 of a stator for a motor, the magnetizable Rotor poles 16 from the inner circumference of the casing wall 10 of the depression 8 are included.

Claims (12)

  1. Drive device for a front-loading laundry treatment machine with a laundry drum (1), which is mounted at least approximately horizontally in a support part by way of a shaft (2) and is directly driven by a motor (14, 16) arranged at its rear side and the magnetisable poles (16) of which are arranged at the rotor and disposed externally opposite the lamination stacks (14), which are provided at the stator for reception of excitation windings (15), by way of a minimum air gap (17), characterised in that the rear wall (7) of the laundry drum (1) has a bell-shaped recess (8) which extends in the direction of the longitudinal axis of the shaft (2) and at the inner circumference (10) of which the magnetisable poles (16) of the rotor are distributed, and that the lamination stacks (14) of the stator are fastened in the part (3) of the support part projecting into the recess.
  2. Drive device according to claim 1, characterised in that the support part is part of a solution container (5).
  3. Drive device according to claim 2, characterised in that the rear wall (4) of the solution container (5) has a bell-shaped flange (3) at which the lamination stacks (14) of the stator are fastened.
  4. Drive device according to claim 3, characterised in that the bell-shaped flange (3) forms the bearing sleeve of the shaft (2).
  5. Drive device according to claim 3 or 4, characterised in that the bell-shaped flange (3) is a cast metal part, particularly an aluminium casting or a grey cast iron casting.
  6. Drive device according to claim 2, characterised in that the motor (14 to 16) is sealed relative to the washing solution by a seal (20) arranged between the rear wall (7) of the laundry drum (1) and the rear wall of the solution container (5).
  7. Drive device according to one of claims 1 to 6, characterised in that the motor (14 to 16) is a switched reluctance motor.
  8. Drive device according to claim 7, characterised in that the magnetisable poles (16) are formed by laminated iron plates.
  9. Drive device according to one of claims 1 to 6, characterised in that the motor (14 to 16) is an electronically commutated direct-current motor.
  10. Drive device according to claim 9, characterised in that the magnetisable poles (16) are formed by permanent magnets.
  11. Drive device according to one of claims 1 to 10, characterised in that the lamination stacks (14) or magnetisable poles are formed to be segmental or annular.
  12. Drive device according to one of claims 1 to 11, characterised in that the lamination stacks (14) and the magnetisable poles (6) are disposed opposite one another, with respect to the shaft (2), in radial direction or in axial direction.
EP19990963516 1998-12-22 1999-12-13 Drive device for a front-loading washing machine Expired - Lifetime EP1141466B1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DE1998159567 DE19859567A1 (en) 1998-12-22 1998-12-22 Drive device for a washing machine that can be loaded from the front
DE19859567 1998-12-22
PCT/EP1999/009872 WO2000037731A1 (en) 1998-12-22 1999-12-13 Drive device for a front-loading washing machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SI9930477T SI1141466T1 (en) 1998-12-22 1999-12-13 Drive device for a front-loading washing machine

Publications (2)

Publication Number Publication Date
EP1141466A1 EP1141466A1 (en) 2001-10-10
EP1141466B1 true EP1141466B1 (en) 2003-09-17

Family

ID=7892317

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19990963516 Expired - Lifetime EP1141466B1 (en) 1998-12-22 1999-12-13 Drive device for a front-loading washing machine

Country Status (7)

Country Link
US (1) US6626014B2 (en)
EP (1) EP1141466B1 (en)
AT (1) AT250157T (en)
DE (1) DE19859567A1 (en)
ES (1) ES2207322T3 (en)
TR (1) TR200101797T2 (en)
WO (1) WO2000037731A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105624965A (en) * 2014-10-30 2016-06-01 青岛海尔洗衣机有限公司 Washing device

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU782017B2 (en) * 1999-10-18 2005-06-30 Lg Electronics Inc. A driving unit for a drum type washing machine
DE19963703A1 (en) * 1999-12-29 2001-07-05 Bsh Bosch Siemens Hausgeraete Drive device for a washing machine
US6584813B2 (en) * 2001-03-26 2003-07-01 Emerson Electric Co. Washing machine including a segmented stator switched reluctance motor
KR100464054B1 (en) 2002-12-27 2005-01-03 엘지전자 주식회사 Drum type washing machine with united cabinet/tub
EP2302123A3 (en) * 2002-12-27 2013-01-16 LG ELectronics INC. Drum type washing machine
DE60320587T2 (en) * 2002-12-31 2009-06-04 Arcelik A.S., Tuzla Washer / dryer
US8256246B2 (en) * 2003-10-29 2012-09-04 Miele & Cie. Kg. Aggregate for a washing machine with a plastic sudsing container
KR100634802B1 (en) 2004-07-20 2006-10-16 엘지전자 주식회사 Drum washing machine
US7342334B2 (en) * 2004-10-29 2008-03-11 Emerson Electric Co. Insulated stator with wire routing element
KR100673447B1 (en) * 2004-11-04 2007-01-24 엘지전자 주식회사 Washing machine
KR100662150B1 (en) * 2005-08-30 2006-12-27 엘지전자 주식회사 Washing machine
KR100651853B1 (en) 2005-09-30 2006-12-01 엘지전자 주식회사 Bearing housing assembly of an insert-molding type and cabinet-tub unified drum-washer having the same
US7841220B2 (en) 2005-09-30 2010-11-30 Lg Electronics Inc. Drum-type washing machine
EP1795641A1 (en) * 2005-12-06 2007-06-13 Electrolux Home Products Corporation N.V. Household-type clothes washing machine with compact drive motor
US7536882B2 (en) 2006-03-29 2009-05-26 Lg Electronics Inc. Drum type washing machine
KR101225971B1 (en) * 2006-04-07 2013-01-24 엘지전자 주식회사 Motor and air conditioner having the same
EP2119819B1 (en) 2008-05-14 2013-04-10 Whirlpool Corporation Washing machine with a direct drive system
KR20100045316A (en) * 2008-10-23 2010-05-03 엘지전자 주식회사 Washing machine
KR101090104B1 (en) * 2008-12-23 2011-12-07 주식회사 아모텍 Integrated Cover-Structured Stator
ITPD20090269A1 (en) * 2009-09-17 2011-03-18 Giuseppe Pengo washing machine Driven by electric motor with the rotor fixed to the drum inside the tub.
WO2011144559A1 (en) * 2010-05-20 2011-11-24 Arcelik Anonim Sirketi A washing machine wherein the unbalanced load is balanced
US9175430B2 (en) * 2010-05-20 2015-11-03 Arcelik Anonim Sirketi Washing machine wherein the unbalanced load is balanced
CN105544139B (en) * 2014-10-30 2019-11-12 青岛海尔洗衣机有限公司 A kind of wash mill

Family Cites Families (15)

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Publication number Priority date Publication date Assignee Title
US2861355A (en) * 1955-09-23 1958-11-25 Pennsylvania Range Boiler Co Laundry drying machines
US2975528A (en) * 1957-11-29 1961-03-21 Gen Motors Corp Prime mover for clothes drier
NL291769A (en) * 1962-04-19
US3167809A (en) * 1963-07-26 1965-02-02 Tobin Packing Co Inc Electrical stunning device
US3333443A (en) * 1965-05-19 1967-08-01 Skinner Prec Ind Inc Washing machine
DE3819651A1 (en) * 1988-06-09 1989-12-14 Miele & Cie Washing machine or laundry dryer with a drive motor directly driving the laundry drum
JP2839511B2 (en) * 1988-09-05 1998-12-16 三菱電機株式会社 Dehydration washing machine drive
DE4414768A1 (en) * 1994-04-27 1995-11-02 Mulfingen Elektrobau Ebm Laundry treatment appliance has rotating drum
DE19546185B4 (en) * 1995-12-11 2010-07-01 BSH Bosch und Siemens Hausgeräte GmbH Drive device for a front-loadable washing machine
DE19547456A1 (en) * 1995-12-19 1997-06-26 Bosch Siemens Hausgeraete Drive device for a washing machine that can be loaded from the front
DE19547745A1 (en) * 1995-12-20 1997-06-26 Bosch Siemens Hausgeraete Drive device for a washing machine that can be loaded from the front
DE19724475B4 (en) * 1997-06-10 2010-08-05 BSH Bosch und Siemens Hausgeräte GmbH Drive device for a front-loadable washing machine
DE19724930A1 (en) * 1997-06-12 1998-12-17 Bosch Siemens Hausgeraete Drive device for a washing machine
DE19726246A1 (en) * 1997-06-20 1998-12-24 Bosch Siemens Hausgeraete Drive device for a washing machine
JPH1128298A (en) * 1997-07-11 1999-02-02 Toshiba Corp Drum type washing machine

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105624965A (en) * 2014-10-30 2016-06-01 青岛海尔洗衣机有限公司 Washing device
CN105624965B (en) * 2014-10-30 2019-07-23 青岛海尔洗衣机有限公司 A kind of wash mill

Also Published As

Publication number Publication date
AT250157T (en) 2003-10-15
US20020000108A1 (en) 2002-01-03
EP1141466A1 (en) 2001-10-10
DE19859567A1 (en) 2000-06-29
ES2207322T3 (en) 2004-05-16
US6626014B2 (en) 2003-09-30
WO2000037731A1 (en) 2000-06-29
TR200101797T2 (en) 2002-01-21

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