EP1158086A2 - Machine de traitement du linge avec moteur à entrainement direct - Google Patents

Machine de traitement du linge avec moteur à entrainement direct Download PDF

Info

Publication number
EP1158086A2
EP1158086A2 EP01111084A EP01111084A EP1158086A2 EP 1158086 A2 EP1158086 A2 EP 1158086A2 EP 01111084 A EP01111084 A EP 01111084A EP 01111084 A EP01111084 A EP 01111084A EP 1158086 A2 EP1158086 A2 EP 1158086A2
Authority
EP
European Patent Office
Prior art keywords
stator
rotor
laundry treatment
air gap
treatment machine
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
EP01111084A
Other languages
German (de)
English (en)
Other versions
EP1158086B1 (fr
EP1158086A3 (fr
Inventor
Günter Esch
Frank Horstmann
Ulrich Martin
Peter Dr. Rode
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.)
Miele und Cie KG
Original Assignee
Miele und Cie KG
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
Application filed by Miele und Cie KG filed Critical Miele und Cie KG
Publication of EP1158086A2 publication Critical patent/EP1158086A2/fr
Publication of EP1158086A3 publication Critical patent/EP1158086A3/fr
Application granted granted Critical
Publication of EP1158086B1 publication Critical patent/EP1158086B1/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 laundry treatment device (washing machine, washer dryer or Dryer) with an overhung drum, in which a shaft pivot in two spaced radial bearings, and with a drive motor in the form of a direct drive, one with the permanent magnet rotor connected to the shaft journal and one with includes a bearing seat connected stator, the rotor and stator concentric with each other arranged and spaced from each other by an air gap.
  • a laundry treatment machine of the type mentioned at the outset is from, for example WO 98/36123 A1 known.
  • a washing machine is already known from DE 38 19 651 A1, in which without use the usual intermediate drive (drive belt, pulley) directly into the laundry drum is driven.
  • the rotor forms the rotary motion transmission part to the drum of the washing machine.
  • a drive motor is known from WO 98/36123 A1 mentioned at the beginning and from DE 43 35 966 A1 known for washing machines, which one to be releasably connected to the drive shaft
  • Permanent magnet rotor and a stator to be detachably connected to the bearing seat includes.
  • Hard ferrites are used as permanent magnets in such a rotor develop large magnetic forces and are very brittle. It comes with one Laundry treatment machine through wear of the bearings to an increasing bearing play, can lower the drum. This results in the direct drive described above, that the air gap at the bottom gets smaller. In extreme cases, this can lead to the touch of Guide the stator and rotor, in which case the permanent magnets and possibly also the stator are destroyed would.
  • a sensor is in the form of a washing machine of a Hall IC compared to the magnet of a permanent magnet rotor Direct drive rotor known. This sensor is used to measure the rotational speed of the Drum used.
  • the invention thus poses the problem with a laundry treatment device described at the outset eccentricity between the rotor and stator due to bearing wear recognize and as a result a warning of the user and / or an interruption of continued operation to enable.
  • At least one part assigned to the stator is Sensor means arranged approximately in the six o'clock position of the stator. At this point The reduction in the air gap is strongest and can therefore be sensed in a simple manner.
  • the contact sensor is arranged on the stator closed conductor loop formed by at least one arranged on the rotor Separating element is interrupted permanently. This creates a permanent one Signal generated, which can be easily processed.
  • the drive motor of a laundry treatment machine is a direct drive formed, the rotor with the shaft journal of the drum and the stator with the bearing seat of the drum, for example a bearing cross on the tub Washing machine, is connected.
  • the rotor is a permanent magnet rotor and an external rotor formed and surrounds the stator poles concentrically to form an air gap.
  • the above Construction is, for example, from WO 98/36123 A1 or from EP 0 953 668 A1 known and therefore not shown or explained in more detail.
  • the rotor shown in Figures 1 to 4 consists of a rotor bell (1) in the form of a Pot-shaped deep-drawn part or aluminum injection molded part, which on the inside one annular iron yoke (2) and the permanent magnets (3) attached to it as Carries rotor poles.
  • a pocket-shaped recesses (4) between the Iron yoke (2) and the bell (1) are one or more separating elements (5) as the first Sensor elements introduced frictionally and / or non-positively.
  • the separating element (5, stamped and bent part or molded part, see Figure 5) is pressed against the iron yoke (2) until it stops.
  • two lateral support ribs (6) are arranged supported on the magnet (3).
  • the roof-shaped geometry of the upper part (8) protrudes its tip approx. 0.1-0.15mm compared to the magnets in the air gap (9).
  • the stator of the direct drive is shown in FIGS. 1 and 6.
  • the stator laminated core is in the essentially ring-shaped. It has a series of outward facing pronounced stator poles (10) with stator windings (11, not shown in Figure 6) are provided.
  • the windings (11) are opposed to plastic bobbins (12) the stator laminated core is insulated.
  • the tooth heads projecting outwards from the coil formers (12) (13) of the stator poles (10) are rounded.
  • the separating element (5) is opposite a further sensor element in the form of a closed conductor loop on the coil former (12) (14) attached. This conductor loop (14) is form-fitting with the help of a dovetail guide (15) attached to the coil body (12) and also protrudes about 0.1-0.15mm in the Air gap (9) into it.
  • the conductor loop (14) is severed, as a result of which a signal is sent to the device control. This signal can be converted into a warning display and / or via the controller Stop the device.
  • the conductor loop (14) is part of a conductor track system (16), which also supplies power to the stator and other sensors (thermal switch etc.) contains and is integrated on a contact carrier (17) (see FIGS. 7 and 8). This is in turn fixed to the stator by means of fastening eyes (18).
  • the closed conductor loop (14) there can be an open conductor track, a piezo element or a microswitch can be used as the second sensor element.
  • the separating element must then be modified accordingly.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Main Body Construction Of Washing Machines And Laundry Dryers (AREA)
  • Control Of Washing Machine And Dryer (AREA)
  • Control Of Stepping Motors (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Permanent Magnet Type Synchronous Machine (AREA)
EP01111084A 2000-05-23 2001-05-09 Machine de traitement du linge avec moteur à entrainement direct Expired - Lifetime EP1158086B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10025016 2000-05-23
DE10025016A DE10025016B4 (de) 2000-05-23 2000-05-23 Wäschebehandlungsgerät mit einem Antriebsmotor in Form eines Direktantriebs

Publications (3)

Publication Number Publication Date
EP1158086A2 true EP1158086A2 (fr) 2001-11-28
EP1158086A3 EP1158086A3 (fr) 2002-09-18
EP1158086B1 EP1158086B1 (fr) 2005-09-07

Family

ID=7642930

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01111084A Expired - Lifetime EP1158086B1 (fr) 2000-05-23 2001-05-09 Machine de traitement du linge avec moteur à entrainement direct

Country Status (4)

Country Link
EP (1) EP1158086B1 (fr)
AT (1) ATE304074T1 (fr)
DE (2) DE10025016B4 (fr)
ES (1) ES2245332T3 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006018473A2 (fr) * 2004-08-19 2006-02-23 Abb Oy Dispositif equipant une machine electrique

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007017215B4 (de) 2007-04-12 2017-01-12 Schaeffler Technologies AG & Co. KG Rotatorischer Direktantrieb
DE102008046187A1 (de) * 2008-09-06 2010-03-11 Schaeffler Kg Rotor eines Waschmaschinen-Direktantriebs
DE102014206637A1 (de) * 2014-04-07 2015-10-08 BSH Hausgeräte GmbH Verfahren zum Herstellen eines Trommelbodens für eine Wäschetrommel eines Haushaltsgeräts, Wäschetrommel und Haushaltsgerät
DE102020212198A1 (de) 2020-09-28 2022-03-31 Brose Fahrzeugteile SE & Co. Kommanditgesellschaft, Würzburg Kontaktvorrichtung eines Stators

Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1001152A (en) * 1910-11-19 1911-08-22 William A Lawrence Attachment for electric motors.
US1492022A (en) * 1919-06-09 1924-04-29 Fritz W Falck Protective system for electrical machinery
US2794136A (en) * 1955-11-30 1957-05-28 Gen Electric Generator warning signal
US3373300A (en) * 1966-02-04 1968-03-12 Francis P. Sullivan Electric bearing failure indicator
US3678493A (en) * 1970-09-21 1972-07-18 Borg Warner Machinery shaft radial position monitor/alarm system
US3743934A (en) * 1970-05-20 1973-07-03 Bbc Brown Boveri & Cie Apparatus for monitoring the air gap in rotary electrical machines using magnetic field plates or magneto diodes
US3798504A (en) * 1971-03-25 1974-03-19 Maschf Augsburg Nuernberg Ag Device for shutting off drive motors of rotating machine parts in case of overload and/or destruction of a machine part
US4211973A (en) * 1972-10-11 1980-07-08 Kabushiki Kaisha Teikoku Denki Seisakusho Apparatus for detecting faults to be occurred or initially existing in a running electric rotary machine
US4334189A (en) * 1978-12-08 1982-06-08 Tetsuya Sato Operation supervisory apparatus of canned motor
US4379291A (en) * 1979-09-04 1983-04-05 Texas Eastern Scientific Research, Inc. Bearing failure indicator for rotating electric machines
JPS6059942A (ja) * 1983-09-12 1985-04-06 Toshiba Corp 回転機のエアギヤツプ監視装置
US4539499A (en) * 1984-01-03 1985-09-03 Punch William E Device for detection of contact between rotor and stator

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1128298A (ja) * 1997-07-11 1999-02-02 Toshiba Corp ドラム式洗濯機

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1001152A (en) * 1910-11-19 1911-08-22 William A Lawrence Attachment for electric motors.
US1492022A (en) * 1919-06-09 1924-04-29 Fritz W Falck Protective system for electrical machinery
US2794136A (en) * 1955-11-30 1957-05-28 Gen Electric Generator warning signal
US3373300A (en) * 1966-02-04 1968-03-12 Francis P. Sullivan Electric bearing failure indicator
US3743934A (en) * 1970-05-20 1973-07-03 Bbc Brown Boveri & Cie Apparatus for monitoring the air gap in rotary electrical machines using magnetic field plates or magneto diodes
US3678493A (en) * 1970-09-21 1972-07-18 Borg Warner Machinery shaft radial position monitor/alarm system
US3798504A (en) * 1971-03-25 1974-03-19 Maschf Augsburg Nuernberg Ag Device for shutting off drive motors of rotating machine parts in case of overload and/or destruction of a machine part
US4211973A (en) * 1972-10-11 1980-07-08 Kabushiki Kaisha Teikoku Denki Seisakusho Apparatus for detecting faults to be occurred or initially existing in a running electric rotary machine
US4334189A (en) * 1978-12-08 1982-06-08 Tetsuya Sato Operation supervisory apparatus of canned motor
US4379291A (en) * 1979-09-04 1983-04-05 Texas Eastern Scientific Research, Inc. Bearing failure indicator for rotating electric machines
JPS6059942A (ja) * 1983-09-12 1985-04-06 Toshiba Corp 回転機のエアギヤツプ監視装置
US4539499A (en) * 1984-01-03 1985-09-03 Punch William E Device for detection of contact between rotor and stator

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 009, no. 193 (E-334), 9. August 1985 (1985-08-09) & JP 60 059942 A (TOSHIBA KK), 6. April 1985 (1985-04-06) *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006018473A2 (fr) * 2004-08-19 2006-02-23 Abb Oy Dispositif equipant une machine electrique
WO2006018473A3 (fr) * 2004-08-19 2006-04-13 Abb Oy Dispositif equipant une machine electrique
US7804209B2 (en) 2004-08-19 2010-09-28 Abb Oy Arrangement in an electrical machine
CN101010855B (zh) * 2004-08-19 2011-08-10 Abb有限公司 电动机械的结构

Also Published As

Publication number Publication date
ES2245332T3 (es) 2006-01-01
DE10025016A1 (de) 2001-12-06
EP1158086B1 (fr) 2005-09-07
EP1158086A3 (fr) 2002-09-18
ATE304074T1 (de) 2005-09-15
DE10025016B4 (de) 2006-09-28
DE50107333D1 (de) 2005-10-13

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