EP0780507B1 - Antriebsvorrichtung für eine von vorn beschickbare Waschmaschine - Google Patents
Antriebsvorrichtung für eine von vorn beschickbare Waschmaschine Download PDFInfo
- 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
Links
- 238000005406 washing Methods 0.000 title claims abstract description 23
- 238000004804 winding Methods 0.000 claims description 11
- 230000005284 excitation Effects 0.000 claims description 5
- 238000001816 cooling Methods 0.000 description 10
- 239000003570 air Substances 0.000 description 7
- 101150114468 TUB1 gene Proteins 0.000 description 5
- 238000013461 design Methods 0.000 description 5
- 230000005291 magnetic effect Effects 0.000 description 3
- 239000012080 ambient air Substances 0.000 description 2
- 230000000712 assembly Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 210000003746 feather Anatomy 0.000 description 2
- 230000005294 ferromagnetic effect Effects 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 239000000696 magnetic material Substances 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Images
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).
Description
- Fig.1
- eine schematische Darstellung eines Waschmaschinen-Laugenbehälters mit einer innenliegend horizontal gelagerten Wäschetrommel, deren Antriebswelle gemeinsam mit der Nabe der Läuferglocke in der Lagerhülse des Ständers gelagert ist und
- Fig. 2
- eine vergrößerte und teilweise geschnitten dargestellte Detail-Ansicht des an der Rückwand montierten Motors gemäß Fig. 1.
Claims (7)
- Antriebsvorrichtung für eine von vom beschickbare Waschmaschine mit einer innerhalb einer Lagerhülse (22) eines an der Rückwand (6) eines Laugenbehälters (1) angebrachten, steifen Tragteils über eine wenigstens annähernd horizontal liegende Welle (7) fliegend gelagerten Wäschetrommel (4), die durch einen ebenfalls an der Rückseite des Laugenbehälters (1) angebrachten, flachen Motor (9) direkt angetrieben ist, dadurch gekennzeichnet, daß der Ständer (10, 12, 21, 22, 32 in Fig. 2) des Motors (9) an dem steifen Tragteil (20) oder selbst als steifes Bauelement (10, 11, 12, und 22 in Fig.1) anstelle eines steifen Tragteils mit der Rückwand (6) des Laugenbehälters (1) verbunden ist und eine zentrale Lagerhülse (22) für die bei montiertem Motor (9) vom Laugenbehälter (1) aus einführbare Welle (7) der Wäschetrommel (4) und für eine die Welle umfassende Nabe (31) des Läufers aufweist, daß am äußeren Ende der Welle die Nabe (31) des Läufers (13), der zwischen seiner Nabe und der Umfangspartie eine Vielzahl von Durchbrüche (33) und an seinem Umfang einen zum Laugenbehälter (1) weisenden, glockenartigen Flansch (15) aufweist, zentriert befestigt ist und daß der Läufer (13) mit seinen am Innenumfang des glockenförmigen Flansches (15) verteilten magnetisierbaren Polen (14) über einen minimalen Luftspalt den am Ständertragteil (10) verteilten, zur Aufnahme von Erregerwicklungen (12) des Ständers (10, 11,12, 21, 22, 32) vorgesehenen Polpaketen (32) von außen gegenübersteht.
- Antriebsvorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die Durchbrüche (33) und/oder eine zwischen der Nabe (31) und der Umfangspartie des Läufers (13) angeordnete Läuferscheibe (34) zur Unterstützung einer bei der Drehbewegung des Läufers (13) entstehenden Luftbewegung ausgebildet sind.
- Antriebsvorrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß der Motor (9) ein elektronisch kommutierter Gleichstrommotor ist.
- Antriebsvorrichtung nach Anspruch 3, dadurch gekennzeichnet, daß der Läufer (13) wenigstens teilweise aus einem ringförmigen Paket (16) von Dynamoblechen und darauf angeordneten Dauermagnetsegmenten (14) besteht.
- Antriebsvorrichtung nach Anspruch 3 oder 4, dadurch gekennzeichnet, daß die Polpakete (32) des Ständers (10), 11, 12, 21, 22, 32) aus Dynamoblechen zusammengesetzt sind und die Erregerwicklungen (12) tragen.
- Antriebsvorrichtung nach einem der Ansprüche 1,2, 4 oder 5, dadurch gekennzeichnet, daß der Motor ein geschalteter Reluktanzmotor ist.
- Antriebsvorrichtung nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, daß die zentrierte Verbindung (30) des Läufers (13) an der Welle (7) durch eine Profilwellen-, Profilnaben-, Paßfeder-, Kegel- oder Keilnutverbindung formschlüssig drehfest ist.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19547745A DE19547745A1 (de) | 1995-12-20 | 1995-12-20 | Antriebsvorrichtung für eine von vorn beschickbare Waschmaschine |
DE19547745 | 1995-12-20 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0780507A2 EP0780507A2 (de) | 1997-06-25 |
EP0780507A3 EP0780507A3 (de) | 1998-07-15 |
EP0780507B1 true EP0780507B1 (de) | 2002-12-11 |
Family
ID=7780768
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP96118606A Expired - Lifetime EP0780507B1 (de) | 1995-12-20 | 1996-11-19 | Antriebsvorrichtung für eine von vorn beschickbare Waschmaschine |
Country Status (11)
Country | Link |
---|---|
US (1) | US5862686A (de) |
EP (1) | EP0780507B1 (de) |
JP (1) | JP3863612B2 (de) |
KR (1) | KR100427442B1 (de) |
CN (1) | CN1230964C (de) |
AT (1) | ATE229584T1 (de) |
AU (1) | AU720902B2 (de) |
BR (1) | BR9606097A (de) |
DE (2) | DE19547745A1 (de) |
ES (1) | ES2188712T3 (de) |
TR (1) | TR199601023A2 (de) |
Cited By (1)
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 |
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DE19724475B4 (de) * | 1997-06-10 | 2010-08-05 | BSH Bosch und Siemens Hausgeräte GmbH | Antriebsvorrichtung für eine von vorn beschickbare Waschmaschine |
DE19724930A1 (de) * | 1997-06-12 | 1998-12-17 | Bosch Siemens Hausgeraete | Antriebsvorrichtung für eine Waschmaschine |
DE19726246A1 (de) * | 1997-06-20 | 1998-12-24 | Bosch Siemens Hausgeraete | Antriebsvorrichtung für eine Waschmaschine |
JPH1128298A (ja) * | 1997-07-11 | 1999-02-02 | Toshiba Corp | ドラム式洗濯機 |
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JP3042494B2 (ja) * | 1998-05-21 | 2000-05-15 | 松下電器産業株式会社 | 洗濯機 |
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US11050322B2 (en) | 2017-12-26 | 2021-06-29 | Hamilton Sundstrand Corporation | Flywheel energy storage with PM, induction, or variable reluctance machine |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE944157C (de) * | 1945-01-04 | 1956-06-07 | Siemens Ag | Schwinganordnung |
BE631280A (de) * | 1962-04-19 | |||
US3254545A (en) * | 1963-10-08 | 1966-06-07 | Fichtel & Sachs Ag | Dual-speed transmission for a washing machine |
EP0082828B1 (de) * | 1981-12-18 | 1987-02-04 | Institut Cerac S.A. | Waschmaschine |
US4712035A (en) * | 1985-11-12 | 1987-12-08 | General Electric Company | Salient pole core and salient pole electronically commutated motor |
NZ215389A (en) * | 1986-03-06 | 1992-02-25 | Fisher & Paykel | Washing machine: spin tub connected to drive at low water level |
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 |
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 |
-
1995
- 1995-12-20 DE DE19547745A patent/DE19547745A1/de not_active Withdrawn
-
1996
- 1996-11-19 DE DE59609971T patent/DE59609971D1/de not_active Expired - Lifetime
- 1996-11-19 EP EP96118606A patent/EP0780507B1/de not_active Expired - Lifetime
- 1996-11-19 ES ES96118606T patent/ES2188712T3/es not_active Expired - Lifetime
- 1996-11-19 AT AT96118606T patent/ATE229584T1/de not_active IP Right Cessation
- 1996-12-17 KR KR1019960066543A patent/KR100427442B1/ko not_active IP Right Cessation
- 1996-12-17 AU AU75404/96A patent/AU720902B2/en not_active Ceased
- 1996-12-18 JP JP33777396A patent/JP3863612B2/ja not_active Expired - Fee Related
- 1996-12-18 TR TR96/01023A patent/TR199601023A2/xx unknown
- 1996-12-19 BR BR9606097A patent/BR9606097A/pt not_active Application Discontinuation
- 1996-12-19 US US08/767,956 patent/US5862686A/en not_active Expired - Lifetime
- 1996-12-20 CN CNB961239689A patent/CN1230964C/zh not_active Expired - Lifetime
Cited By (1)
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
Publication number | Publication date |
---|---|
TR199601023A3 (de) | 1997-07-21 |
KR970043521A (ko) | 1997-07-26 |
BR9606097A (pt) | 1998-11-03 |
JP3863612B2 (ja) | 2006-12-27 |
AU7540496A (en) | 1997-06-26 |
TR199601023A2 (tr) | 1997-07-21 |
EP0780507A2 (de) | 1997-06-25 |
JPH09182369A (ja) | 1997-07-11 |
ES2188712T3 (es) | 2003-07-01 |
DE19547745A1 (de) | 1997-06-26 |
DE59609971D1 (de) | 2003-01-23 |
EP0780507A3 (de) | 1998-07-15 |
CN1180260A (zh) | 1998-04-29 |
ATE229584T1 (de) | 2002-12-15 |
US5862686A (en) | 1999-01-26 |
CN1230964C (zh) | 2005-12-07 |
AU720902B2 (en) | 2000-06-15 |
KR100427442B1 (ko) | 2004-07-23 |
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