EP0997568B1 - Waschmaschine oder Waschtrockner - Google Patents
Waschmaschine oder Waschtrockner Download PDFInfo
- 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
Links
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
- D06F37/20—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)
- Manufacture Of Motors, Generators (AREA)
- Centrifugal Separators (AREA)
- Processing Of Solid Wastes (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Description
- Figur 1
- den Laugenbehälter, die Trommel und den Antriebsmotor mit Auswuchtsystem bei einer erfindungsgemäß ausgebildeten Waschmaschine
- Figur 2a-c
- Querschnitte durch verschiedene Auswuchtsysteme
Claims (7)
- Waschmaschine oder Waschtrockner mit einem Laugenbehälter (1), in dem eine Trommel (2) um eine wenigstens annähernd horizontale Achse drehbar gelagert ist, und mit einem Antriebsmotor (3), dessen Rotor (31) direkt mit einer Antriebswelle (22) der Trommel (2) verbunden ist,
gekennzeichnet durch ein System zum Auswuchten der Trommel, bestehend aus einer mit der Trommel umlaufenden, konzentrisch zu ihrer Rotationsachse angeordneten kreisringförmigen Laufbahn (4), innerhalb der mindestens zwei Gewichte (41) frei beweglich angeordnet sind wobei die Laufbahn (4) am Rotor (31) des Antriebsmotors (3) angeordnet ist. - Waschmaschine oder Waschtrockner nach Anspruch 1,
dadurch gekennzeichnet, daß der Rotor (31) als Außenläufer mit einem topfförmigen Gehäuse ausgebildet ist und daß die Laufbahn (4) auf der Mantelfläche (311) des Rotors (31) angeordnet ist. - Waschmaschine oder Waschtrockner nach Anspruch 2,
dadurch gekennzeichnet, daß die Wirkungsebene des Auswuchtsystems derart im Bereich der Trommellagerung angeordnet ist, daß durch die Gewichte keine Momente auf die Trommellager ausgeübt werden. - Waschmaschine oder Waschtrockner nach Anspruch 2 oder 3,
dadurch gekennzeichnet, daß die Mantelfläche (311) des Rotors (31) einen Randansatz (43) mit L-förmigem Querschnitt besitzt und daß zwischen der Mantelfläche (311) und dem sich parallel zur Mantelfläche (311) erstreckenden Bereich (431) des Randansatzes (43) eine Abdichtung (44) derart angeordnet ist, daß Mantelfläche (311), Randansatz (43) und Abdichtung (44) eine geschlossene, kreisringförmige Laufbahn (4) ausbilden. - Waschmaschine oder Waschtrockner nach Anspruch 4,
dadurch gekennzeichnet, daß in die Laufbahn (4) ein gehärteter Laufring (45) eingelegt ist, welcher mindestens den sich parallel zur Mantelfläche (311) erstreckenden Bereich (431) des Randansatzes (43) abdeckt. - Waschmaschine nach einem der Ansprüche 1 bis 5,
dadurch gekennzeichnet, daß die Laufbahn (4) mit einem viskosen Dämpfungsmittel (42) gefüllt ist. - Waschmaschine nach einem der Ansprüche 1 bis 6,
dadurch gekennzeichnet, daß an der Trommel im Übergangsbereich zwischen Stirnfläche und Mantel auf der dem Motor abgewandten Seite ein weiteres Auswuchtsystem angeordnet ist.
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 (de) | 2000-05-03 |
EP0997568B1 true EP0997568B1 (de) | 2003-08-06 |
Family
ID=7885855
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP99118591A Expired - Lifetime EP0997568B1 (de) | 1998-10-27 | 1999-09-21 | Waschmaschine oder Waschtrockner |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0997568B1 (de) |
AT (1) | ATE246742T1 (de) |
DE (2) | DE19849594C1 (de) |
PL (1) | PL191084B1 (de) |
Cited By (1)
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)
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 |
WO2010077025A2 (en) | 2008-12-30 | 2010-07-08 | Lg Electronics Inc. | Laundry machine |
US20120272690A1 (en) * | 2011-04-26 | 2012-11-01 | General Electric Company | Motor-mounted balance ring for a washing machine appliance |
EP3862478A1 (de) | 2020-02-10 | 2021-08-11 | The Procter & Gamble Company | Dynamische auswuchtanordnungen und waschvorrichtungen mit einem oder mehreren drehfedern |
EP3862477A1 (de) | 2020-02-10 | 2021-08-11 | The Procter & Gamble Company | Waschvorrichtungen mit dynamischen auswuchtanordnungen |
EP3862479A1 (de) | 2020-02-10 | 2021-08-11 | The Procter & Gamble Company | Aufhängungslose wäschevorrichtungen und verfahren zum auswuchten einer wäschevorrichtung |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5351671A (en) * | 1976-10-20 | 1978-05-11 | Hitachi Ltd | Drum type washing machine |
AU2442395A (en) * | 1994-05-20 | 1995-12-18 | Eti Technologies Inc | Dynamic balancing method and apparatus |
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 (de) * | 1997-02-17 | 1998-08-20 | Miele & Cie. Gmbh & Co. | Wäschebehandlungsgerät mit einem auf der trommelwelle angeordneten antriebsmotor |
DE19718321C1 (de) * | 1997-04-30 | 1998-10-29 | Miele & Cie | Verfahren zum Auswuchten von rotierenden Körpern |
-
1998
- 1998-10-27 DE DE19849594A patent/DE19849594C1/de not_active Expired - Fee Related
-
1999
- 1999-09-21 AT AT99118591T patent/ATE246742T1/de not_active IP Right Cessation
- 1999-09-21 DE DE59906488T patent/DE59906488D1/de not_active Expired - Fee Related
- 1999-09-21 EP EP99118591A patent/EP0997568B1/de not_active Expired - Lifetime
- 1999-10-26 PL PL336218A patent/PL191084B1/pl not_active IP Right Cessation
Cited By (1)
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 |
---|---|
ATE246742T1 (de) | 2003-08-15 |
PL336218A1 (en) | 2000-05-08 |
EP0997568A1 (de) | 2000-05-03 |
DE19849594C1 (de) | 2000-03-30 |
PL191084B1 (pl) | 2006-03-31 |
DE59906488D1 (de) | 2003-09-11 |
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