EP2376699B1 - Waschmaschine - Google Patents

Waschmaschine Download PDF

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Publication number
EP2376699B1
EP2376699B1 EP09793512.6A EP09793512A EP2376699B1 EP 2376699 B1 EP2376699 B1 EP 2376699B1 EP 09793512 A EP09793512 A EP 09793512A EP 2376699 B1 EP2376699 B1 EP 2376699B1
Authority
EP
European Patent Office
Prior art keywords
drain
valve
tub
washing machine
machine according
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.)
Active
Application number
EP09793512.6A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2376699A1 (de
Inventor
Ismael Gracia Bobed
Miguel Angel Gomez Caudevilla
Roberto Latre Abadia
Gerardo Martinez Perez
Juan Melantuche Fuente
Jose Luis Perez Luengo
Eduardo Recio Ferrer
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.)
BSH Hausgeraete GmbH
Original Assignee
BSH Hausgeraete GmbH
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 BSH Hausgeraete GmbH filed Critical BSH Hausgeraete GmbH
Publication of EP2376699A1 publication Critical patent/EP2376699A1/de
Application granted granted Critical
Publication of EP2376699B1 publication Critical patent/EP2376699B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00 
    • D06F39/08—Liquid supply or discharge arrangements

Definitions

  • the present invention relates to the field of washing machines comprising a washing tub to be filled with washing water and a drain port, a drain pump, a drain line which watertably connects the tub to the drain pump and has a valve member which is sealed to the tub , and a pipe part, which is watertermally connected to the drain pump; wherein the washing machine further comprises a drain valve floatable in the washing water, which is movably disposed inside the valve member to close the drain hole when wash water is inside the tub and the drain pump is at rest or to open the drain hole when there is no wash water inside the tub or the drain pump is in operation.
  • the Patent DE 4442089 A1 describes a washing machine having a washing tub, in which a drum is arranged, which can rotate inside and in which the clothes to be washed are placed.
  • the washing tub has in its upper part a washing water inlet port to partially fill the washing tub for washing and rinsing the materials to be washed.
  • a drain opening is arranged, to the outer part of the washing tub, a drain line is connected, which connects the washing tub with the drain pump to empty the washing water from the washing tub, if it requires the washing process.
  • the drain pump discharges all the water from the inside of the tub and the drain line, and therefore at the beginning of the following cycle, the water poured into the washing tub fills the drain line and does not participate in the washing process.
  • this has a valve member in which there is a buoyant valve in the form of a hollow ball, which fits into the drain opening, if enough water for the beginning of the cycle has flowed. In this way, the detergent does not escape through the drain line, thereby avoiding environmental damage.
  • the valve member of the drain line is a flexible part of rather complex shape, which must be tightly fastened to the wash tub by any system, such as a flange.
  • the Patent DE 3624065 A1 describes a washing machine similar to the preceding, which has a drain line similar to that of the previous machine with a valve member which is connected in a sealed manner with the washing tub by means of a flange.
  • the valve is located inside the valve part and is designed as a flap or tongue, which is connected in one piece with the wall of the drain line, more precisely with the wall of the valve part.
  • the valve part and the valve are made of a complex part of flexible material. If there is no water inside the drain line or the pump is operating, the valve lowers and allows communication between the interior of the tub and the drain line. Similar to the process of the previous machine, when the washing cycle starts, the drain line fills with water, and the water itself makes the valve float and pushes it against the drain opening of the washing tub.
  • a washing machine comprising a washing tub which is to be filled with washing water and a drain opening, a drain pump, a drain line which connects the washing tub to the drainage pump in water and has a valve part tightly connected to the washing tub. and a pipe part which is watertermally connected to the drain pump; and a drain valve floatable in the wash water and movably disposed inside the valve member to close the drain hole when wash water is inside the wash tub and the drain pump is at rest, or to open the drain hole when there is no wash water is located inside the washing tub or the drain pump is in operation, the valve part in a piece with the washing tub is formed and the pipe part is connected to an outlet port of the valve member.
  • the washing tub in addition to the drain opening, the valve member in one piece, which is why the tightness is always better, since connections between the two parts are avoided.
  • the drain line simplifies, since only one part of the pipe has to be connected to the outlet connection of the valve part when it is integrated into the washing tub in one piece.
  • the pipe part may be a cylindrical standard pipe which is inserted by means of conventional flanges into the outlet connection and into the drainage pump.
  • the washing machine may be a front loader or a top loader; it may have a drum with horizontal rotation or a drum with vertical rotation inside the washing tub.
  • the valve member is designed as part of the tub and has an inner space which is connected to the interior of the washing tub via the drain opening. Component means that it is not a part that can be dismantled and reassembled.
  • the drain opening can be closed by means of the valve floatable in the wash water.
  • the interior of the valve member has an outlet port to which the pipe part is connected.
  • the buoyant valve may be embodied as a lower density member than the washing water having a shape to fit in the drainage hole. It is particularly advantageous that the discharge opening is circular, since the valve may have a spherical shape or a partial spherical shape, which fits therein and blocks the flow of washing water.
  • valve member has such a shape as to allow the movement of the valve in its interior inadvertently while remaining closed.
  • the operation of the valve during the washing process is similar to that of the prior art, by keeping the drainage opening closed while there is water in the valve member to urge the valve against the opening.
  • the tub is made of two tub sections made of plastic.
  • Each of the tub sections has a portion of the valve member that has been molded in one piece with the corresponding section.
  • they are joined by means of plastic welding technology, although not necessarily, since they can be glued or clamped.
  • the Drain port is embodied in a first tub section, and thus, in the embodiment of an injection molded part, prevents its edge has burrs that could interfere with a proper closing of the valve.
  • valve In a particular embodiment of the valve is provided that it has the shape of a flap. With such a geometry, less space is needed inside the valve member.
  • the draining valve in the form of a flap has a plug portion that fits into the drain opening, a float portion, and a hinge member connected to the valve portion to permit rotation of the drain valve between the open and closed positions. In this configuration, the movement of the valve inside the valve member is limited and the closure system is better controlled.
  • the drain valve has a stop that limits the rotation of the drain valve in the open position and prevents it from sticking to the wall of the valve member.
  • the stop limits the rotation of the drain valve in the open position to an opening between 15 ° and 35 °, preferably between 20 ° and 30 ° °, advantageously 25 °.
  • the hinge member is designed as a rib which is inserted into a recess of the first tub section. This is an easy-to-install assembly that also secures the correct position by means of a slide that fits into the recess and limits its displacement in the recess. And to prevent it from shifting in the recess, the second tub section presses on the hinge element in the recess of the first section of the tub when the two sections are united.
  • the drain valve is made of elastic material.
  • the valve-type drain valve type which has a hinge part, to assist in bending this part, as it is preferably made in one piece and below the weight of the plug part and the float part in the region of the hinge must bend.
  • it is a valve in the form of a hollow sphere, it is not necessary that it is flexible, but that it is a smooth Has surface to adapt to the drain opening.
  • the drain valve has an anti-stick surface, at least in the plug part, to reduce the possibility of sticking detergent residues, filaments or other elements that could worsen closure.
  • the drain opening has a circular shape and the plug part partially has a spherical shape, which fits into the drain opening.
  • the shape of the plug part is not necessarily partly spherical, since a cone shape can also perform the same function.
  • the float part has a cylindrical hollow shape with one end connected to the plug part, and that its other end is open, where the air can enter, when the water level in the valve part rises, and supports the floating of the valve. It can also be hermetically sealed so that the air inside makes the valve swim.
  • FIG. 1 shows a schematic sectional view of the lower portion of a washing machine having a washing tub 30, in which a drum 10 is arranged, which can rotate in its interior and in which the clothes to be washed are placed.
  • the wash tub is made of two tub sections 32 and 34 which are connected by a connecting portion 35 which extends linearly through the connecting plane of the two sections.
  • the wash tub is disposed in a washing machine frame 20 suspended from a system of springs and dampers.
  • the washing tub has a washing water inlet port in its upper part to partially fill the washing tub for washing and rinsing the materials to be washed.
  • a drain opening 38 is executed in the lower wall 33 of the first tub section 32.
  • the bottom wall of the first tub section 32, where the drain opening 38 is formed, extends to the joint plane of the two tub sections and hermetically joins a wall of the second tub section 34 at the seal line 39 when both tubs Pieces are connected.
  • the drain line 50 is connected, which connects the washing tub 30 with the drain pump 40 to empty the washing water from the washing tub when it requires the washing process.
  • the drain line 50 is formed of a valve member 52, which is made in an entire plastic part with the tub sections 32 and 34, and a tube member 54 which is connected to the valve member at the outlet port 56 and the drain pump 40.
  • a valve 60 in the form of a hollow ball, which is buoyant and fits into the discharge opening 38 to close it when sufficient water has flowed into the valve member.
  • FIG. 2 shows in perspective the valve member 52 of the two tub sections 32 and 34 open wash tub 30. It shows the part of the first tub section 32, where the valve member 52 of the drain line is located.
  • the drain opening 38 of the tub In the lower wall of the first tub section is the drain opening 38 of the tub and the edge of the wall which forms the connecting line 39 with the wall of the second tub section 34 when both tub sections are connected.
  • On one side of the valve member 52 is a groove 36 into which the hinge portion 66 of the drain valve 60 is inserted until it is fitted by the slider 67.
  • the drain valve is in the closed position B, and you can see through the drain opening 38, the plug part 62 of the drain valve. It is also possible to see the float part 64 partly below the lower wall in the interior of the valve part 53 of the drainage pipe of the first tub section 32.
  • the connecting section 35 is defined as the periphery of both tub sections, which is preferably in a plane to facilitate closing of the tub.
  • the method of closing for this plastic wash tub is a plastic welding process.
  • the outlet port 56 of the valve portion of the drain line is made, although it could be easily implemented on the first tub section.
  • FIG. 3 shows in perspective the part of the first tub section 32, where the portion of the valve member 52 of the drain line corresponding portion is located.
  • the drain opening 38 of the tub and the edge of the wall forming the connection line 39 with the wall of the second tub section are located when both tub sections are connected.
  • On one side of the valve member 52 is a groove 36 into which the hinge part 66 of the drain valve 60 is inserted, following in the direction of the broken line, until it is fitted inside the valve member 53 of the drain pipe.
  • the hinge part 66 has at the end of the slide 67, which remains outside the groove 36.
  • the drain valve 60 is in a pre-assembly position where the plug portion 62 and the float portion 64 are seen.
  • FIG. 4 shows a front view of the first tub section 32 in the corresponding region of the valve member 52 of the drain line with the connecting portion 35 with the other tub section extending along its outer periphery.
  • the lower wall 33 of the first tub section 32 and the connection portion 35 define the interior of the valve member 53, where the valve 60 is in the closed position B, connected to the wall of the valve member with the slider 67 at its outermost part.
  • the bottom wall 33 is shown in section to show the drainage opening 38 where the plug portion 62 of the valve is seated, and below the plugging portion is the float portion 64.
  • the stop 68 In the area of the valve 60 closest to the hinge portion is located the stop 68 without contact with the wall of the valve member of the drain line.
  • FIG. 5 shows a front view of the first tub section 32 in the corresponding region of the valve member 52 of the drain line with the connecting portion 35 with the other tub section extending along its outer periphery.
  • the bottom wall 33 of the first tub section 32 and the connection portion 35 define the interior of the valve member 53 where the valve 60 is in the open position A connected to the wall of the valve member with the spool 67 at its outermost part.
  • the bottom wall 33 is shown in section to show the opened drain opening 38.
  • the stop 68 is in contact with the wall of the valve part of the drain line and holds the valve 60 in its maximum opening position.
  • the plug portion 62 of the valve is removed from the drain opening, and below the plug portion is the float portion 64.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Detail Structures Of Washing Machines And Dryers (AREA)
  • Main Body Construction Of Washing Machines And Laundry Dryers (AREA)
EP09793512.6A 2008-12-12 2009-12-11 Waschmaschine Active EP2376699B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ES200803571A ES2347114B1 (es) 2008-12-12 2008-12-12 Maquina lavadora.
PCT/EP2009/066976 WO2010066893A1 (de) 2008-12-12 2009-12-11 Waschmaschine

Publications (2)

Publication Number Publication Date
EP2376699A1 EP2376699A1 (de) 2011-10-19
EP2376699B1 true EP2376699B1 (de) 2016-08-03

Family

ID=41582164

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09793512.6A Active EP2376699B1 (de) 2008-12-12 2009-12-11 Waschmaschine

Country Status (7)

Country Link
US (1) US9127393B2 (es)
EP (1) EP2376699B1 (es)
CN (1) CN102245824B (es)
EA (1) EA018914B1 (es)
ES (1) ES2347114B1 (es)
PL (1) PL2376699T3 (es)
WO (1) WO2010066893A1 (es)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD665544S1 (en) * 2011-07-28 2012-08-14 Lg Electronics Inc. Drawer-shaped washing machine
USD667179S1 (en) * 2011-07-28 2012-09-11 Lg Electronics Inc. Drawer-shaped washing machine
EP2746448A1 (en) * 2012-12-21 2014-06-25 Electrolux Home Products Corporation N.V. Improved discharge system for laundry treatment appliance
EP2998426B1 (en) * 2014-09-16 2017-11-15 Electrolux Appliances Aktiebolag Washing machiine having an improved valve/filter assembly
US10179963B2 (en) 2015-07-27 2019-01-15 Whirlpool Corporation Fabric treating appliance
KR102604592B1 (ko) * 2015-09-04 2023-11-22 엘지전자 주식회사 의류처리장치
CN110195333B (zh) 2018-02-27 2021-09-07 青岛胶南海尔洗衣机有限公司 一种密封阀安装结构及免清洗洗衣机
CN112442831A (zh) * 2019-09-05 2021-03-05 博西华电器（江苏）有限公司 用于控制洗衣机的方法及相应的洗衣机
CN113137471B (zh) * 2020-01-20 2024-01-12 青岛海尔洗衣机有限公司 一种洗衣机盘座的密封结构及具有该密封结构的洗衣机
CN111560751B (zh) * 2020-04-02 2024-06-25 青岛海尔洗涤电器有限公司 排水阀及洗衣机

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2512394A (en) * 1945-05-12 1950-06-20 Apex Electrical Mfg Co Self-cleaning lint trap
US2662536A (en) * 1952-11-28 1953-12-15 Gen Electric Drainage control system
US2986917A (en) * 1958-06-04 1961-06-06 Maytag Co Combination washer-drier lint removal arrangements
US3172278A (en) * 1963-07-09 1965-03-09 Maytag Co Fabric treating machine with drive means to effect a tumble, distribution and extraction operation
US3172277A (en) * 1963-07-09 1965-03-09 Maytag Co Clothes washing machine with control means for providing a varying speed tumble operation
US3307825A (en) * 1965-11-04 1967-03-07 Neil W Sollenbarger Dump valve for washing machines
DE3683150D1 (de) * 1985-10-03 1992-02-06 Miele & Cie Waschmaschine oder waschtrockner mit einrichtungen zur vermeidung von waschmittelverlusten.
DE3608579A1 (de) * 1986-03-14 1987-09-17 Miele & Cie Waschmaschine oder waschtrockner mit einer ventileinrichtung zur vermeidung von waschmittelverlusten
DE3624065A1 (de) * 1986-07-16 1988-02-18 Bosch Siemens Hausgeraete Waschmaschine mit einem ventil in ihrer ablaufleitung
DE4442089C2 (de) * 1994-11-25 2000-09-21 Bsh Bosch Siemens Hausgeraete Ablaufvorrichtung für den Laugenbehälter einer Waschmaschine
DE10065404B4 (de) * 2000-12-27 2006-10-26 BSH Bosch und Siemens Hausgeräte GmbH Auslaufeinrichtung für eine Waschmaschine
CN100383326C (zh) * 2002-07-05 2008-04-23 乐金电子(天津)电器有限公司 洗衣机的液体洗涤剂自动投入装置
ITTO20050365A1 (it) * 2005-05-30 2006-11-30 Indesit Co Spa Macchina di lavaggio con valvola antiriflusso
ES2336520B1 (es) 2007-09-07 2011-02-18 Bsh Electrodomesticos Espana Cuba plastica de maquina lavadora

Also Published As

Publication number Publication date
EP2376699A1 (de) 2011-10-19
ES2347114A1 (es) 2010-10-25
EA018914B1 (ru) 2013-11-29
EA201170766A1 (ru) 2012-01-30
ES2347114B1 (es) 2011-08-18
WO2010066893A1 (de) 2010-06-17
PL2376699T3 (pl) 2017-01-31
US9127393B2 (en) 2015-09-08
CN102245824B (zh) 2013-05-29
CN102245824A (zh) 2011-11-16
US20110232698A1 (en) 2011-09-29

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