EP2175063A1 - Waschmaschine mit Waschmitteleinspülvorrichtung mit getrenntem Spülflüssigkeitsfluss - Google Patents

Waschmaschine mit Waschmitteleinspülvorrichtung mit getrenntem Spülflüssigkeitsfluss Download PDF

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Publication number
EP2175063A1
EP2175063A1 EP08425653A EP08425653A EP2175063A1 EP 2175063 A1 EP2175063 A1 EP 2175063A1 EP 08425653 A EP08425653 A EP 08425653A EP 08425653 A EP08425653 A EP 08425653A EP 2175063 A1 EP2175063 A1 EP 2175063A1
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EP
European Patent Office
Prior art keywords
washing
flows
outlet
washing machine
solenoid valves
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
EP08425653A
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English (en)
French (fr)
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EP2175063B1 (de
Inventor
Silvano Fumagalli
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.)
Candy SpA
Original Assignee
Candy SpA
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 Candy SpA filed Critical Candy SpA
Priority to ES08425653T priority Critical patent/ES2356796T3/es
Priority to DE602008003692T priority patent/DE602008003692D1/de
Priority to EP08425653A priority patent/EP2175063B1/de
Publication of EP2175063A1 publication Critical patent/EP2175063A1/de
Application granted granted Critical
Publication of EP2175063B1 publication Critical patent/EP2175063B1/de
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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 
    • D06F39/02—Devices for adding soap or other washing agents
    • D06F39/028—Arrangements for selectively supplying water to detergent compartments

Definitions

  • the present invention relates to a domestic clothes washing machine with washing agents flushing-in device having split flushing liquid flow.
  • the various agents are taken up by means of a jet of water directed in turn onto one of the different sections.
  • the jet is oriented by means of mechanical directing devices, which are not very reliable, or, preferably, by generating different jets suitably oriented by means of solenoid valves, each of which produces a specific jet.
  • the conjoint generation of the first and the second jet, which are caused to interfere in a first intersection zone, makes it possible to obtain a fourth jet (with dispersed flows), having an orientation intermediate between those of the first and second jets, and which can be used for taking-up bleaching agent from a third compartment, while the dispersed flows pour into the compartment containing the washing detergent, emptied in a previous stage of the washing cycle, and into the washing tub.
  • the fifth jet may be used for taking up fabric softening substances, generally in liquid phase, from a fourth compartment, while the dispersed flows pour into the two compartments for containing the detergent for the main wash and the pre-wash.
  • the aim of the present invention is to eliminate these drawbacks to a great extent and to improve the efficacy of the entire washing operation.
  • the invention solves the problem of reducing to a minimum the dispersed flows which affect the containers of detergent, such that the likelihood of entrainment of residual detergent in the course of the subsequent stages of bleaching and fabric softening is reduced to a minimum and practically eliminated, and the efficacy of the two treatments is ensured and obtained, among other things, with a reduced use of bleaching and fabric softening substances.
  • the device comprises a group of solenoid valves 1, 2, 3 fed with water from a pipe E, connected to the water supply network.
  • the outlet channels 5, 6 of the solenoid valves 2 and 3 terminate respectively in two delivery nozzles 10, 11 of equal cross-section which, according to the pressure of the water supply network, provide equal outlet flow rates.
  • the outlet channel 4 of the solenoid valve 1 has a bifurcation 7 which divides it into two channels 41, 42 terminating in two delivery nozzles, respectively 8 and 9, having a cross-section equal to that of the nozzles 10, 11 such that the flow rates emerging from the different nozzles are equal.
  • the nozzle 8 is oriented in such a way as to inject its flow into a delivery channel 141, passing into an intersection node 12.
  • the nozzle 9 is oriented in such a way as to inject its flow into a delivery channel 142, passing into a second intersection node 13.
  • the nozzle 10 is oriented in such a way as to inject its flow into a delivery channel 15, passing through the node 12.
  • the nozzle 11 is oriented in such a way as to inject its flow into a delivery channel 16, passing through the node 13.
  • This flow is collected by a delivery channel 17, oriented precisely in the intermediate direction.
  • the dispersed flows impose a certain order of use, and therefore of generation, of the flows emerging from the different channels, such that the dispersed flows irrigate containing compartments from which the agents have already been taken up and in which only residues are present.
  • the flow emerging from the delivery channel 18 may be used for taking up a fabric softener from its container.
  • the dispersed flows emerging from the delivery channels 142 and 16 are respectively conveyed directly into the washing tub and onto the main wash detergent container, already emptied.
  • the volume of liquid used for taking up the fabric softener (generally in liquid phase) is a modest fraction of the entire volume of liquid delivered, and the dispersion flow which affects the main wash detergent container, already emptied, is an even more modest fraction, to obvious advantage, since the likelihood of unwanted residues of detergent being taken up and conveyed into the washing tub is reduced.
  • the symbols EV, CHAN, PW, WW, RIN, BLE, SOFT indicate respectively the solenoid valves (EV), the delivery channels (CHAN), the various containers for pre-wash (PW), main wash (WW), bleaching (BLE), fabric softening (SOFT) agents and the rinsing stage (RIN).
  • Figures 3 and 4 show a preferred embodiment of the take-up device shown diagrammatically in Figure 1 .
  • this consists of a flattened box-like body 20 ( Fig. 3 ) preferably obtained by injection-moulding of plastics material and closed at the top by a lid (not illustrated, in order to allow the inside of the box-like body 20 to be seen) heat-welded or fixed by snap fastening or screws onto the box-like body.
  • a pull-out sliding drawer 21 Arranged beneath the box-like body is a pull-out sliding drawer 21 ( Fig. 4 ), known per se and currently used in domestic washing machines.
  • the compartment 22 is intended to contain pre-wash detergent, the compartment 23 main wash detergent, the compartment 25 bleaching agent and the compartment 25 a fabric softener.
  • the various compartments are provided with a discharge opening, respectively 26, 27, 28, 29, in case formed by a reverse siphon, through which the liquid for transporting the washing agents is discharged into an underlying collecting funnel (not illustrated and known per se) and thence conveyed into the washing tub.
  • the box-like body 20 has three inlet pipes 4, 5, 6 (the elements functionally equivalent to those of Figure 1 are identified by the same reference numbers) which are connected to the outlet of the solenoid control valves 1, 2, 3.
  • the pipe 4 has a bifurcation 7 which divides it into two pipes 41, 42.
  • the different pipes terminate in the outflow nozzles 8, 9, 10, 11, which define two intersection nodes at which the base plate of the box-like body has a pair of openings 30, 31 which, in a known manner, form a so-called "free air path".
  • one or both of the pipes terminate in the gasket of the load opening, so as to irrigate directly the contents of the drum housed in the washing chamber.
  • the collecting channels 15, 16 Aligned in the direction of the nozzles 10 and 11 are formed the collecting channels 15, 16 which open respectively into two sections 34, 35 lying above the compartments 22 and 23 of the drawer 21.
  • the bottom of the sections 34, 35 has openings 36 which discharge the liquid admitted into the sections into the underlying compartments, distributing it uniformly, so as to bring about the efficient take-up of the detergent contained therein.
  • the collecting channels 17 and 18 Aligned in a direction intermediate to that of the nozzles 8, 10 and 9, 11 respectively are formed the collecting channels 17 and 18 which open respectively into two sections 37, 38 lying above the compartments 24 and 25 of the drawer 21.
  • the bottom of these sections also has openings which discharge the liquid present therein into the underlying compartments 24, 25 in order to take up the washing agents contained therein (bleaching agent and fabric softener).
  • the flow rate of the various flows may be defined by the same solenoid valves 1, 2, 3, suitably sized.
  • All the flow rates of liquid emerging from the solenoid valves may be equal to one another, providing for a suitable orientation of the collecting channels 17, 18 which takes account of the vectorial composition of the quantity of motion of the two flows which intersect each other.
  • the number of solenoid valves used may be more than three, or provision may be made for the division of the flow emerging from more than one solenoid valve and for interference between more than two pairs of flows.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Detail Structures Of Washing Machines And Dryers (AREA)
EP08425653A 2008-10-09 2008-10-09 Waschmaschine mit Waschmitteleinspülvorrichtung mit getrenntem Spülflüssigkeitsfluss Active EP2175063B1 (de)

Priority Applications (3)

Application Number Priority Date Filing Date Title
ES08425653T ES2356796T3 (es) 2008-10-09 2008-10-09 Lavadora doméstica con dispositivo de inyección de agentes de lavado dotado de un flujo de líquido de descarga dividido.
DE602008003692T DE602008003692D1 (de) 2008-10-09 2008-10-09 Waschmaschine mit Waschmitteleinspülvorrichtung mit getrenntem Spülflüssigkeitsfluss
EP08425653A EP2175063B1 (de) 2008-10-09 2008-10-09 Waschmaschine mit Waschmitteleinspülvorrichtung mit getrenntem Spülflüssigkeitsfluss

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP08425653A EP2175063B1 (de) 2008-10-09 2008-10-09 Waschmaschine mit Waschmitteleinspülvorrichtung mit getrenntem Spülflüssigkeitsfluss

Publications (2)

Publication Number Publication Date
EP2175063A1 true EP2175063A1 (de) 2010-04-14
EP2175063B1 EP2175063B1 (de) 2010-11-24

Family

ID=40473662

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08425653A Active EP2175063B1 (de) 2008-10-09 2008-10-09 Waschmaschine mit Waschmitteleinspülvorrichtung mit getrenntem Spülflüssigkeitsfluss

Country Status (3)

Country Link
EP (1) EP2175063B1 (de)
DE (1) DE602008003692D1 (de)
ES (1) ES2356796T3 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2295625A1 (de) * 2009-09-09 2011-03-16 Samsung Electronics Co., Ltd. Waschmaschine und Waschmittelzufuhrvorrichtung dafür
CN111254655A (zh) * 2020-03-06 2020-06-09 青岛海尔洗衣机有限公司 进水阀和洗衣机

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1263944A (en) 1968-04-24 1972-02-16 Philips Nv Machine for washing laundry, dishes or the like
GB2296507A (en) 1994-12-29 1996-07-03 Bosch Siemens Hausgeraete Washing machine with washing agent flushing-in equipment
EP0725182A1 (de) 1995-02-03 1996-08-07 Bosch-Siemens HausgerÀ¤te GmbH Wasserzuführungs-Einrichtung für ein wasserführendes Haushaltgerät

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1263944A (en) 1968-04-24 1972-02-16 Philips Nv Machine for washing laundry, dishes or the like
GB2296507A (en) 1994-12-29 1996-07-03 Bosch Siemens Hausgeraete Washing machine with washing agent flushing-in equipment
EP0725182A1 (de) 1995-02-03 1996-08-07 Bosch-Siemens HausgerÀ¤te GmbH Wasserzuführungs-Einrichtung für ein wasserführendes Haushaltgerät

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2295625A1 (de) * 2009-09-09 2011-03-16 Samsung Electronics Co., Ltd. Waschmaschine und Waschmittelzufuhrvorrichtung dafür
CN111254655A (zh) * 2020-03-06 2020-06-09 青岛海尔洗衣机有限公司 进水阀和洗衣机

Also Published As

Publication number Publication date
ES2356796T3 (es) 2011-04-13
DE602008003692D1 (de) 2011-01-05
EP2175063B1 (de) 2010-11-24

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