EP0997568B1 - Machine à laver ou séchoir à linge - Google Patents

Machine à laver ou séchoir à linge Download PDF

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Publication number
EP0997568B1
EP0997568B1 EP99118591A EP99118591A EP0997568B1 EP 0997568 B1 EP0997568 B1 EP 0997568B1 EP 99118591 A EP99118591 A EP 99118591A EP 99118591 A EP99118591 A EP 99118591A EP 0997568 B1 EP0997568 B1 EP 0997568B1
Authority
EP
European Patent Office
Prior art keywords
drum
washing machine
rotor
disposed
travel track
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
EP99118591A
Other languages
German (de)
English (en)
Other versions
EP0997568A1 (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.
  • washing machine is known for example from DE 198 06 258 A2.
  • washing machines or washer dryers for compensation provide one or more raceways connected to the drum in a rotationally fixed manner, in which freely movable weights align themselves with the unbalance and this can counteract.
  • this is from energetic Disadvantages for reasons, because the raceways and their contents are heated together with the wash liquor on the other hand there is the disadvantage that viscous damping agents that temperature fluctuations for reasons described later exposed to the entire range of adjustable washing temperatures. There the viscosity and thus the damping behavior of these agents is very temperature-dependent is very difficult to define and therefore controllable compensation properties become.
  • a drum washing machine is known in which a liquid-filled Compensation ring is arranged in the drive wheel for the drum. Because such a balance ring attached to the end of the drive shaft, it tilts at high speeds on the rear drum bearing, which accelerate bearing wear. Also be in such an arrangement caused by the fluid or weight shift Compensatory forces partially canceled by the pretensioning of the belt.
  • 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.
  • 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 with external rotors on the lateral surface.
  • the material from which it is made does not have to be there meet the high requirements in terms of alkali resistance, for example when installing would be put on the drum.
  • the outer surface of the rotor has an 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 which extends to the lateral surface. that lateral surface, edge approach and seal 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 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).
  • For rotatable mounting of the drum (2) is 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 the rotatable mounting of 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 pot-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 (311) 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. Another can be on the end of the drum (2) opposite the motor (3) Balancing system (5) can be arranged so that even larger imbalances can be compensated.
  • Balancing system (5) can be arranged so that even larger imbalances 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 be 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 thus 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 projection (43) is formed. Between the outer surface (311) and the region (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 track (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)

Claims (7)

  1. Lave-linge ou sèche-linge comprenant une cuve de lessive (1) dans laquelle un tambour (2) est monté de manière à pouvoir tourner autour d'un axe au moins à peu près horizontal, et un moteur d'entraínement (3) dont le rotor (31) est directement relié à un arbre d'entraínement (22) du tambour (2), caractérisé par un système pour équilibrer le tambour, qui est composé d'une glissière (4) en forme d'anneau de cercle qui tourne en même temps que le tambour et qui est disposée de façon concentrique par rapport à l'axe de rotation de ce dernier, à l'intérieur de laquelle au moins deux poids (41) sont agencés de manière à pouvoir se déplacer librement, la glissière (4) étant disposée sur le rotor (31) du moteur d'entraínement (3).
  2. Lave-linge ou sèche-linge selon la revendication 1, caractérisé en ce que le rotor (31) est réalisé en tant qu'induit extérieur avec un carter en forme de pot, et en ce que la glissière (4) est disposée sur la surface latérale (311) du rotor (31).
  3. Lave-linge ou sèche-linge selon la revendication 2, caractérisé en ce que le niveau d'action du système d'équilibrage se situe à proximité des paliers du tambour, de manière à ce que les poids n'exercent aucun couple sur les paliers du tambour.
  4. Lave-linge ou sèche-linge selon la revendication 2 ou 3, caractérisé en ce que la surface latérale (311) du rotor (3) possède un rebord (43) de section transversale en L, et en ce qu'entre la surface latérale (311) et la zone (431) du rebord (43) qui s'étend parallèlement à la surface latérale (311) est placée une garniture d'étanchéité (44) de telle manière que la surface latérale (311), le rebord (43) et la garniture d'étanchéité (44) forment une glissière (4) fermée en forme d'anneau de cercle.
  5. Lave-linge ou sèche-linge selon la revendication 4, caractérisé en ce qu'un anneau de roulement trempé (45) est posé dans la glissière (4), qui recouvre au moins la zone (431) du rebord (43) qui s'étend parallèlement à la surface latérale (311).
  6. Lave-linge selon l'une des revendications 1 à 5, caractérisé en ce que la glissière (4) est remplie d'un agent amortissant visqueux (42).
  7. Lave-linge selon l'une des revendications 1 à 6, caractérisé en ce qu'un autre système d'équilibrage est placé sur le tambour dans la zone de transition entre la surface frontale et l'enveloppe, du côté opposé au moteur.
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 EP0997568A1 (fr) 2000-05-03
EP0997568B1 true 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 (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9394643B2 (en) 2013-09-18 2016-07-19 Whirlpool Corporation Dynamic balancer in a laundry treating appliance

Families Citing this family (7)

* 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
US20120272690A1 (en) * 2011-04-26 2012-11-01 General Electric Company Motor-mounted balance ring for a washing machine appliance
EP3862477B1 (fr) * 2020-02-10 2024-08-14 The Procter & Gamble Company Appareils de traitement de linge ayant des ensembles d'équilibrage dynamiques
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
EP3862479A1 (fr) 2020-02-10 2021-08-11 The Procter & Gamble Company Appareils de blanchisserie sans suspension et procédés d'équilibrage d'un appareil de blanchisserie

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5351671A (en) * 1976-10-20 1978-05-11 Hitachi Ltd Drum type washing machine
EP0760063B1 (fr) * 1994-05-20 1999-09-29 Eti Technologies Inc. Appareil d'equilibrage dynamique
KR970011127A (ko) * 1995-08-28 1997-03-27 김광호 세탁기의 밸런스
US5735006A (en) * 1996-06-05 1998-04-07 Maytag Corporation Washing machine pulley and fluid ring
WO1998036123A2 (fr) * 1997-02-17 1998-08-20 Miele & Cie. Gmbh & Co. Appareil de traitement de lessive avec un moteur d'entrainement monte sur l'arbre du tambour
DE19718321C1 (de) * 1997-04-30 1998-10-29 Miele & Cie Verfahren zum Auswuchten von rotierenden Körpern

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9394643B2 (en) 2013-09-18 2016-07-19 Whirlpool Corporation Dynamic balancer in a laundry treating appliance

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
EP0997568A1 (fr) 2000-05-03
PL191084B1 (pl) 2006-03-31

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