EP0997568A1 - Machine à laver ou séchoir à linge - Google Patents

Machine à laver ou séchoir à linge Download PDF

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Publication number
EP0997568A1
EP0997568A1 EP99118591A EP99118591A EP0997568A1 EP 0997568 A1 EP0997568 A1 EP 0997568A1 EP 99118591 A EP99118591 A EP 99118591A EP 99118591 A EP99118591 A EP 99118591A EP 0997568 A1 EP0997568 A1 EP 0997568A1
Authority
EP
European Patent Office
Prior art keywords
drum
rotor
washing machine
washer
raceway
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
EP99118591A
Other languages
German (de)
English (en)
Other versions
EP0997568B1 (fr
Inventor
Wilfried Hüttemann
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 EP0997568A1 publication Critical patent/EP0997568A1/fr
Application granted granted Critical
Publication of EP0997568B1 publication Critical patent/EP0997568B1/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
    • D06F37/20—Mountings, e.g. resilient mountings, for the rotary receptacle, motor, tub or casing; Preventing or damping vibrations
    • D06F37/22—Mountings, e.g. resilient mountings, for the rotary receptacle, motor, tub or casing; Preventing or damping vibrations in machines with a receptacle rotating or oscillating about a horizontal axis
    • D06F37/225—Damping vibrations by displacing, supplying or ejecting a material, e.g. liquid, into or from counterbalancing pockets
    • 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 washing machine or a washer-dryer with a tub, in which a drum rotates about an at least approximately horizontal axis and with a drive motor, the rotor of which is connected directly to the drum shaft.
  • Such a washing machine is known for example from DE 19806258 A2. Furthermore it is known in washing machines or washer dryers to compensate for unbalance to provide one or more tracks rotatably connected to the drum, in which freely movable weights align with and counteract the unbalance can. From DE 19718321 A1, it is known that these raceways directly on the Arrange drum. As a result, they are inside the tub and therefore in contact with the washing and rinsing liquid. On the one hand, this is for energy reasons disadvantageous because the raceways and their contents are heated together with the wash liquor need, on the other hand, there is the disadvantage that viscous damping agents, which from later reasons described are introduced into the career, temperature fluctuations in the entire range of adjustable washing temperatures are exposed. Because the viscosity and that the damping behavior of these agents is very temperature-dependent, can only very difficult to define and therefore controllable compensation properties can be achieved.
  • the invention thus presents the problem in a washing machine of the type mentioned Way to avoid these disadvantages and to provide a simple unbalance compensation that is not exposed to the influence of washing and rinsing liquids.
  • this problem is solved by a washing machine or a washer-dryer solved with the features specified in claim 1.
  • the advantages that can be achieved with the invention include the avoidance of the above-mentioned. disadvantage in that the raceway can be attached to the rotor very easily, for example in the case of external rotors on the lateral surface (see claim 2). There must be the material from which it is made will not meet the high requirements in terms of caustic strength, for example would be placed on the drum.
  • the outer surface of the rotor has one Edge approach with an L-shaped cross-section and between the lateral surface and the parallel A seal is arranged in relation to the area of the edge extension that extends to the lateral surface. that lateral surface, edge approach and sealing a closed, circular raceway form. In this way, three walls of the track are already in production made of the rotor; this results in a simple and inexpensive to manufacture and easy to assemble construction.
  • washing machine dryers also result from filling the track with a viscous one Damping means and in that on the drum in the transition area between Another balancing system on the end face and jacket on the side facing away from the motor is arranged.
  • Figure 1 shows a section through a tub (1), a drum (2) and its drive motor (3).
  • Bearing cross (12) attached for the rotatable mounting of the drum (2) on the base of the tub (11)
  • Bearing cross (12) attached.
  • a bearing hub is located in the center of this bearing cross (12) (13), in which two radial roller bearings (14) are inserted.
  • These roller bearings (14) in turn serve for rotatably receiving a drive shaft (22), which rotates with the drum base (21) is connected.
  • the rear end of the drive shaft (22) protrudes from the bearing hub (13) out.
  • a permanent magnet rotor (31) designed as an external rotor is attached to it and thus drives the drum (2) directly.
  • the stator (32) of the drive motor (3) is on Bearing cross (11) attached.
  • the detailed structure of the engine is for example from DE 19806258 A2 is known and is therefore not described in more detail here.
  • the rotor (31) consists of a cup-shaped aluminum injection molded part with a lateral surface (311), which has an annular iron yoke and the permanent magnets attached to it (not shown) contains as rotor poles.
  • the rotor also has a hub (312), which is rotatably connected to the free end of the drive shaft (22).
  • On the A balancing system (see also FIG. 2) is arranged on the jacket of the rotor. It consists of one circular raceway (4) in which weights in the form of balls (41) move freely can.
  • On the end of the drum (2) opposite the motor (3) there can be another Balancing system (5) can be arranged so that larger unbalances can be compensated.
  • the disadvantages described above for within the tub (1) arranged balancing systems can be accepted.
  • each track (4) must be packed in the tightest package filled with balls (41) in an angular range ⁇ ⁇ 180 °. So with horizontal Rotation axis the gravity acting on the balls (41) from a desired rotational speed is overcome and the balls (41) are taken along by the track (4) must be filled with a viscous damping agent (42), advantageously Oil is used. Without this damping means (42), the balls (41) would only subject to rolling friction and therefore roll at the lowest point of the track (4) without to develop their compensatory effect.
  • a viscous damping agent advantageously Oil
  • the outer surface is attached (311) of the rotor (31) an L-shaped edge extension (43) is formed. Between the outer surface (311) and the area (431) of the edge extension which extends parallel to the lateral surface (43) a seal (44) is arranged such that the raceway (4) through the outer surface (311), the edge approach (43) and the seal (44) is formed.
  • a race (45) made of hardened steel is inserted in order to avoid the occurrence at high speeds Reduce surface pressure of the balls (41).
  • Figures 2a-c show possible variants this race (45).
  • the raceway (4) is arranged on the rotor (31) so that its or the plane of action of the balancing system runs between the two roller bearings (14). That way, through the balls (41) exerted no additional moments on the bearings (14).

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Main Body Construction Of Washing Machines And Laundry Dryers (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
  • Centrifugal Separators (AREA)
  • Processing Of Solid Wastes (AREA)
  • Manufacture Of Motors, Generators (AREA)
EP99118591A 1998-10-27 1999-09-21 Machine à laver ou séchoir à linge Expired - Lifetime EP0997568B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19849594 1998-10-27
DE19849594A DE19849594C1 (de) 1998-10-27 1998-10-27 Waschmaschine oder Waschtrockner

Publications (2)

Publication Number Publication Date
EP0997568A1 true EP0997568A1 (fr) 2000-05-03
EP0997568B1 EP0997568B1 (fr) 2003-08-06

Family

ID=7885855

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99118591A Expired - Lifetime EP0997568B1 (fr) 1998-10-27 1999-09-21 Machine à laver ou séchoir à linge

Country Status (4)

Country Link
EP (1) EP0997568B1 (fr)
AT (1) ATE246742T1 (fr)
DE (2) DE19849594C1 (fr)
PL (1) PL191084B1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120272690A1 (en) * 2011-04-26 2012-11-01 General Electric Company Motor-mounted balance ring for a washing machine appliance
EP3862478A1 (fr) * 2020-02-10 2021-08-11 The Procter & Gamble Company Ensembles d'équilibrage dynamiques et appareils de traitement de linge ayant un ou plusieurs ressorts spiralés
EP3862477A1 (fr) * 2020-02-10 2021-08-11 The Procter & Gamble Company Appareils de traitement de linge ayant des ensembles d'équilibrage dynamiques
US11697900B2 (en) 2020-02-10 2023-07-11 The Procter & Gamble Company Suspensionless laundry apparatuses and methods of balancing a laundry apparatus

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8621896B2 (en) * 2005-11-30 2014-01-07 Lg Electronics Inc. Washing machine
KR100960068B1 (ko) 2006-11-10 2010-05-31 삼성전자주식회사 볼밸런서 및 이를 구비한 세탁기
ES2638452T3 (es) 2008-12-30 2017-10-20 Lg Electronics Inc. Máquina de lavar
US9394643B2 (en) 2013-09-18 2016-07-19 Whirlpool Corporation Dynamic balancer in a laundry treating appliance

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2746989A1 (de) * 1976-10-20 1978-04-27 Hitachi Ltd Trommelwaschmaschine
WO1995032372A1 (fr) * 1994-05-20 1995-11-30 Eti Technologies Inc. Procede et appareil d'equilibrage dynamique
US5735006A (en) * 1996-06-05 1998-04-07 Maytag Corporation Washing machine pulley and fluid ring
US5746069A (en) * 1995-08-28 1998-05-05 Samsung Electronics Co., Ltd. Clothes washing machine having upper and lower dynamic balancers
DE19806258A1 (de) * 1997-02-17 1998-08-20 Miele & Cie Wäschebehandlungsgerät mit einem auf der Trommelwelle angeordneten Antriebsmotor
EP0878575A1 (fr) * 1997-04-30 1998-11-18 Miele & Cie. GmbH & Co. Procédé pour équilibrer un corps tournant

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2746989A1 (de) * 1976-10-20 1978-04-27 Hitachi Ltd Trommelwaschmaschine
WO1995032372A1 (fr) * 1994-05-20 1995-11-30 Eti Technologies Inc. Procede et appareil d'equilibrage dynamique
US5746069A (en) * 1995-08-28 1998-05-05 Samsung Electronics Co., Ltd. Clothes washing machine having upper and lower dynamic balancers
US5735006A (en) * 1996-06-05 1998-04-07 Maytag Corporation Washing machine pulley and fluid ring
DE19806258A1 (de) * 1997-02-17 1998-08-20 Miele & Cie Wäschebehandlungsgerät mit einem auf der Trommelwelle angeordneten Antriebsmotor
EP0878575A1 (fr) * 1997-04-30 1998-11-18 Miele & Cie. GmbH & Co. Procédé pour équilibrer un corps tournant

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120272690A1 (en) * 2011-04-26 2012-11-01 General Electric Company Motor-mounted balance ring for a washing machine appliance
EP3862478A1 (fr) * 2020-02-10 2021-08-11 The Procter & Gamble Company Ensembles d'équilibrage dynamiques et appareils de traitement de linge ayant un ou plusieurs ressorts spiralés
EP3862477A1 (fr) * 2020-02-10 2021-08-11 The Procter & Gamble Company Appareils de traitement de linge ayant des ensembles d'équilibrage dynamiques
WO2021163145A1 (fr) * 2020-02-10 2021-08-19 The Procter & Gamble Company Ensembles d'équilibrage dynamique et appareils de blanchisserie comprenant un ou plusieurs effets de ressort
WO2021163144A1 (fr) * 2020-02-10 2021-08-19 The Procter & Gamble Company Appareils de blanchisserie comprenant des ensembles d'équilibrage dynamique
CN114846192A (zh) * 2020-02-10 2022-08-02 宝洁公司 具有一个或多个发条的动态平衡组件和洗衣设备
US11655579B2 (en) 2020-02-10 2023-05-23 The Procter & Gamble Company Dynamic balancing assemblies and laundry apparatuses having one or more clocksprings
US11661695B2 (en) 2020-02-10 2023-05-30 The Procter & Gamble Company Laundry apparatuses having dynamic balancing assemblies
US11697900B2 (en) 2020-02-10 2023-07-11 The Procter & Gamble Company Suspensionless laundry apparatuses and methods of balancing a laundry apparatus
CN114846192B (zh) * 2020-02-10 2024-04-23 宝洁公司 具有一个或多个发条的动态平衡组件和洗衣设备

Also Published As

Publication number Publication date
DE59906488D1 (de) 2003-09-11
DE19849594C1 (de) 2000-03-30
ATE246742T1 (de) 2003-08-15
PL336218A1 (en) 2000-05-08
PL191084B1 (pl) 2006-03-31
EP0997568B1 (fr) 2003-08-06

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