US20100180643A1 - Pump-out section for a detergent solution - Google Patents

Pump-out section for a detergent solution Download PDF

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Publication number
US20100180643A1
US20100180643A1 US12/309,204 US30920407A US2010180643A1 US 20100180643 A1 US20100180643 A1 US 20100180643A1 US 30920407 A US30920407 A US 30920407A US 2010180643 A1 US2010180643 A1 US 2010180643A1
Authority
US
United States
Prior art keywords
tube
lye
pumping
washing machine
subarea
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.)
Abandoned
Application number
US12/309,204
Other languages
English (en)
Inventor
Edwin Bolduan
Necdet Patel
Wolfgang Proppe
Raymond Römer
Horst Wiemer
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 Bosch und Siemens 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 Bosch und Siemens Hausgeraete GmbH filed Critical BSH Bosch und Siemens Hausgeraete GmbH
Assigned to BSH BOSCH UND SIEMENS HAUSGERAETE GMBH reassignment BSH BOSCH UND SIEMENS HAUSGERAETE GMBH ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: ROEMER, RAYMOND, PATEL, NECDET, PROPPE, WOLFGANG, BOLDUAN, EDWIN, WIEMER, HORST
Publication of US20100180643A1 publication Critical patent/US20100180643A1/en
Abandoned 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
    • 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
    • D06F39/083—Liquid discharge or recirculation arrangements
    • D06F39/086—Arrangements for avoiding detergent wastage in the discharge conduit

Definitions

  • the invention relates to a device for pumping out lye having a return flow tank, the volume of which is measured such that with the lye pump off, a predefined quantity of lye can flow back through the lye pump below the washing drum under gravity and having a lower pumping-out connecting element and an upper pumping-out connecting element.
  • DE 35 06 761 C2 and DE 100 58 413 A1 disclose a washing machine of this type with a device for pumping out lye, which comprises a lower pumping-out connecting element connected to the pressure side of the lye pump, an upper pumping-out connecting element which can be connected for instance to an outflow and an interposed return flow tank.
  • the return flow tank is manufactured in two pieces in DE 35 06 761 C2 and in one piece in DE 100 58 413 A1.
  • the pumping-out connecting element and the return flow tank are connected to one another using conventional means such as a pipe coupling etc.
  • the volume of the device for pumping out lye is measured such that with the lye pump off, a predefined quantity of lye can flow out of the device for pumping out lye back through the lye pump below the washing drum under gravity. This can take place by means of a simple backflow of the lye, but also by the back-flowing lye introducing a valve ball of the drain hose into a sealing seat for instance.
  • the device for pumping out lye in the washing machine comprises at least one return flow tank as well as a lower and an upper pumping-out connecting element.
  • the volume of the device for pumping out lye is measured such that with the lye pump off, a predefined quantity of lye can flow back through the lye pump below the washing drum under gravity, if necessary with the use of a return flow valve.
  • the lower pumping-out connecting element, the return flow tank and the upper pumping-out connecting element are designed in one piece or seamlessly in the form of at least one partially flexible tube, with the tube being routed at least partially through a tube holding device, i.e. molded and/or fixed.
  • the device for pumping out lye thus only has two parts, namely the tube and tube holding device.
  • the device for pumping out lye only needs to fulfill the functions of the known return flow tank and the pumping-out connecting element in respect of the lye backflow. It does not need to recreate the form of the known device for pumping out lye.
  • the function of the return flow tank and the pumping-out connecting element(s) can thus also be combined in a tube section.
  • the provision of the inventive device for pumping out lye firstly simplifies and reduces costs involved in the manufacture, secondly facilitates the assembly and thirdly increases reliability.
  • the device for pumping out lye at least one intermediate part is integrated in the tube, particularly if the intermediate part takes the form of a smooth connection with a ventilation hole.
  • the connection is expediently so short, that the flexibility of the tube in the region of the tube holding device and/or its assembly is not noticeably restricted.
  • the device for pumping out lye can however also comprise several intermediate parts, e.g. a further connection having a ventilation facility, e.g. for attaching sensors such as pressure or fluid sensors.
  • the device for pumping out lye features a tube holding device, which has a sealing area comprising a preferably cylindrical and/or annular tube feedthrough in the horizontal cross-section which is inserted therein as well as a connection attached thereto, and if the smooth connection can be introduced into the tube feedthrough of the sealing area of the tube holding device in a sealed manner.
  • the outer shape of the sealing area is not established.
  • the smooth connection in the sealing area is favorably sealed by means of sealing elements such as O-rings, particularly if the connection is restricted on both sides by the O-rings.
  • the ventilation hole can be positioned accurately in the region of the connection. This can be assisted for instance by means of guide elements, such as rails, grooves for example etc.
  • the tube can advantageously be fixed in the sealing area.
  • the inner volume of the tube can generally be designed in a simple manner such that the volume corresponding to the known device for pumping out lye is adjusted over the length or the internal diameter of the tube for instance.
  • the tube is at least partially a corrugated tube, preferably made out of plastic, in particular polypropylene.
  • the tube holding device has a first straight subarea facing the device connection, said first straight subarea merging via a curved area into a second straight subarea which runs perpendicular to the first straight subarea.
  • the sealing area is favorably integrated in the second straight subarea.
  • the tube can be positioned in a circular or arched manner in the connection region to the device and comprises a corresponding length.
  • FIG. 1 shows a schematic representation of a vertical section of a washing machine with a device for pumping out lye
  • FIG. 2 shows a perspective view of a tube holding device
  • FIG. 3 shows a further perspective view of the tube holding device
  • FIG. 4 shows a perspective view of a device for pumping out lye with the tube holding device from FIGS. 2 and 3 and with a suitable tube and
  • FIG. 5 shows a side view of a section from the tube according to FIG. 4 .
  • a washing drum 6 is mounted in a rotatable fashion about a horizontal axis. Water can be fed to the lye container 2 by way of a line 8 , a magnetic valve 10 and a detergent feed facility 12 .
  • the maximum water level 16 that can be reached in the lye container 2 is illustrated schematically using a dashed line.
  • a discharge line 20 is connected to the base 18 of the lye container 2 , said discharge line running past a fluff filter 22 to the intake side of a lye pump 24 .
  • a drain hose 25 , 26 is connected to the pressure side of the lye pump 24 , said drain pump consisting of a lower pumping-out connecting element 25 and an upper pumping-out connecting element 26 , which are connected with one another by way of a return flow tank 30 , with the two pumping-out connecting elements being flexible and preferably being so-called corrugated tubes.
  • the upper pumping-out connecting element 26 can be connected to an outflow or can be attached to a water outflow reservoir 28 .
  • the volume of the return flow tank 30 is dimensioned such that after pumping out lye, if the lye pump 24 is stopped, the lye flowing back out of the drain hose 25 , 26 and the return flow tank 30 through the lye pump 24 comes to rest at a level which is somewhat higher than the base area 18 of the lye container 2 . This ensures that if detergent is subsequently added from the detergent feed facility 12 , this detergent does not disappear in the discharge line 20 on the base 18 of the lye container 2 , but is instead fed by water from the water line 8 which also has to be introduced into the washing drum 6 again.
  • FIG. 2 shows a slanted perspective of a tube holding device 1 .
  • This has a first straight subarea 9 directed downwards in the direction of the YO axis, said subarea 9 merging via a curved region in a second straight subarea 11 , which lies perpendicular to the first straight subarea in the direction of the ZO axis.
  • a cylindrical and/or annular sealing area 13 in the horizontal cross-section is integrated into the second straight subarea 11 , said sealing area 13 having a connection 3 attached to the side.
  • the tube holding device 1 is provided with through holes for improved installability, weight and cost savings and is open on the side outside the sealing area 13 .
  • Retainers and/or installation aids 15 are also integrated into the sealing area 13 .
  • FIG. 3 shows the same tube holder device 1 ( FIG. 1 ) in another view, which emerges from the axis of coordinates.
  • FIG. 4 shows a device for pumping out lye 5 having a tube holding device 1 and a tube 17 guided therein.
  • This device for pumping out lye 5 replaces said device known from the prior art and referred to in FIG. 1 with 25 , 26 , 30 .
  • the lower opening 19 is provided to allow a connection to the pressure side of the lye pump 24 of a washing machine, the upper opening 21 is intended for a connection to the outlet, e.g. to an outflow 28 ( FIG. 1 ).
  • FIG. 5 shows a sketch of a section of the tube 17 associated with the sealing area 13 .
  • the tube 18 essentially consists of corrugated tube segments made out of polypropylene (PP).
  • PP polypropylene
  • a smooth, cylindrical or connection-like section is integrated into the tube 17 as a ventilation facility 27 .
  • this part of the tube is detached from the overall length of the tube 17 and is illustrated larger than the remaining parts of the tube 17 .
  • sealing O-rings 23 are attached to the exterior of the ventilation facility 27 .
  • the O-rings 23 axially seal the internal annular sealing area 13 on the ventilation facility 27 and thus the connections 3 .
  • the ventilation hole 29 is ideally positioned in front of the connection 3 , this being possible for instance by means of corresponding guides. Nevertheless, provided the annular area at the level of the ventilation hole 29 is at a sufficient distance from the internal wall of the tube holding device 1 , positioning of the ventilation hole 28 precisely opposite the input of the connection 3 is not necessary.
  • the tube 17 is provided with the ventilation facility 27 of the tube 17 which is sealed in the axial direction (see also FIG. 5 .)
  • the seal here O-rings 23 ) ensures that liquid lye or lye steam running out of the tube 17 through the ventilation facility 27 can be drained through connection 3 and a ventilation tube ( FIG. 4 ) disposed in a sealed manner thereupon, and does not escape into the environment at the open ends of the sealing area 13 .
  • the tube 17 is logically fixed to the tube holding device 1 , e.g. by means of a pressure connection by way of the O-rings 23 , or however by means of other methods such as adhesive, catch mechanisms, screws etc.
  • the tube 17 can expediently be so long that it is positioned in the area of the device connection in an arc, so that this arc creates additional volume.
  • An enlargement of the internal diameter can simultaneously create more volume in this area.
  • the length of the tube 17 can be adjusted as needed.
  • the device for pumping out lye 5 can be adapted to the structural conditions, e.g. as a result of varying the shape, diameter, length, material etc.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Detail Structures Of Washing Machines And Dryers (AREA)
  • Devices For Medical Bathing And Washing (AREA)
US12/309,204 2006-07-10 2007-06-15 Pump-out section for a detergent solution Abandoned US20100180643A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102006031861.7 2006-07-10
DE102006031861A DE102006031861A1 (de) 2006-07-10 2006-07-10 Laugenabpumpstrang
PCT/EP2007/055949 WO2008006665A1 (de) 2006-07-10 2007-06-15 Laugenabpumpstrang

Publications (1)

Publication Number Publication Date
US20100180643A1 true US20100180643A1 (en) 2010-07-22

Family

ID=38537928

Family Applications (1)

Application Number Title Priority Date Filing Date
US12/309,204 Abandoned US20100180643A1 (en) 2006-07-10 2007-06-15 Pump-out section for a detergent solution

Country Status (7)

Country Link
US (1) US20100180643A1 (ru)
EP (1) EP2041356B1 (ru)
CN (2) CN101479422B (ru)
DE (1) DE102006031861A1 (ru)
EA (1) EA014488B1 (ru)
PL (1) PL2041356T3 (ru)
WO (1) WO2008006665A1 (ru)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4162857A1 (en) * 2021-10-05 2023-04-12 Whirlpool Corporation Dishwasher with drain assembly

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011089625A1 (de) * 2011-12-22 2013-06-27 BSH Bosch und Siemens Hausgeräte GmbH Laugenabpumpstrang für ein Haushaltsgerät zur Pflege von Wäschestücken sowie entsprechendes Haushaltsgerät mit einem Laugenabpumpstrang
CN111304882A (zh) * 2018-12-11 2020-06-19 无锡小天鹅电器有限公司 衣物处理装置及衣物处理装置的箱体组件

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10058413A1 (de) * 2000-11-24 2002-06-13 Bsh Bosch Siemens Hausgeraete Laugenabpumpstrang in einer Waschmaschine
EP1400622A2 (de) * 2002-09-20 2004-03-24 BSH Bosch und Siemens Hausgeräte GmbH Vorrichtung zum Anschluss eines wasserführenden Haushaltgerätes an ein Hauswassernetz
EP1619289A1 (de) * 2004-07-22 2006-01-25 BSH Bosch und Siemens Hausgeräte GmbH Waschmitteleinspüleinrichtung für ein wasserführendes Haushaltgerät

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3506761C2 (de) 1985-02-26 1994-08-11 Bosch Siemens Hausgeraete Waschmaschine mit einer Laugenpumpe
AU597596B2 (en) * 1985-10-03 1990-06-07 Miele & Cie. Gmbh & Co. Washing machine drain
IT1216080B (it) * 1988-03-14 1990-02-22 Merloni A Spa Metodo e dispositivo per economizzare detersivo, particolarmente per una macchina lavabiancheria a ciclo automatico.
DE20315156U1 (de) * 2003-10-01 2003-12-11 Fränkische Rohrwerke Gebr. Kirchner GmbH + Co. KG Spül- und/oder Waschmaschinenablaufschlauch mit integrierter Ventileinrichtung
ES2208069B1 (es) * 2002-04-03 2005-10-01 Bsh Electrodomesticos España, S.A. Dispositivo de evacuacion de agua para una maquina de lavar.
KR100511960B1 (ko) * 2002-11-29 2005-09-02 엘지전자 주식회사 세탁기의 배수호스 안내 구조
CN1600974A (zh) * 2003-09-27 2005-03-30 乐金电子(天津)电器有限公司 洗衣机的排水软管设置结构
DE20319711U1 (de) * 2003-12-19 2004-04-01 Electrolux Home Products Corp. N.V. Geschirrspülmaschine

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10058413A1 (de) * 2000-11-24 2002-06-13 Bsh Bosch Siemens Hausgeraete Laugenabpumpstrang in einer Waschmaschine
EP1400622A2 (de) * 2002-09-20 2004-03-24 BSH Bosch und Siemens Hausgeräte GmbH Vorrichtung zum Anschluss eines wasserführenden Haushaltgerätes an ein Hauswassernetz
EP1619289A1 (de) * 2004-07-22 2006-01-25 BSH Bosch und Siemens Hausgeräte GmbH Waschmitteleinspüleinrichtung für ein wasserführendes Haushaltgerät

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
English Machine translation of Detailed Description of DE10058413A1 to Weimer et al. *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4162857A1 (en) * 2021-10-05 2023-04-12 Whirlpool Corporation Dishwasher with drain assembly
US11882978B2 (en) 2021-10-05 2024-01-30 Whirlpool Corporation Dishwasher with drain assembly

Also Published As

Publication number Publication date
CN101479422B (zh) 2011-03-23
WO2008006665A1 (de) 2008-01-17
EP2041356B1 (de) 2013-11-06
EA200970111A1 (ru) 2009-06-30
EA014488B1 (ru) 2010-12-30
PL2041356T3 (pl) 2014-04-30
CN101479422A (zh) 2009-07-08
EP2041356A1 (de) 2009-04-01
CN201065486Y (zh) 2008-05-28
DE102006031861A1 (de) 2008-01-17

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Legal Events

Date Code Title Description
AS Assignment

Owner name: BSH BOSCH UND SIEMENS HAUSGERAETE GMBH, GERMANY

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:BOLDUAN, EDWIN;PATEL, NECDET;PROPPE, WOLFGANG;AND OTHERS;SIGNING DATES FROM 20090106 TO 20100302;REEL/FRAME:024064/0373

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO PAY ISSUE FEE