EP2214546B1 - Wasserführendes haushaltsgerät mit einer wasserweiche - Google Patents

Wasserführendes haushaltsgerät mit einer wasserweiche Download PDF

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Publication number
EP2214546B1
EP2214546B1 EP20080853213 EP08853213A EP2214546B1 EP 2214546 B1 EP2214546 B1 EP 2214546B1 EP 20080853213 EP20080853213 EP 20080853213 EP 08853213 A EP08853213 A EP 08853213A EP 2214546 B1 EP2214546 B1 EP 2214546B1
Authority
EP
European Patent Office
Prior art keywords
fluid
water
domestic appliance
passage openings
conducting domestic
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
EP20080853213
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2214546A1 (de
Inventor
Johannes BÜSING
Anton Oblinger
Pedro Sancho
David Semerad
Martin Stickel
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
Priority to PL08853213T priority Critical patent/PL2214546T3/pl
Publication of EP2214546A1 publication Critical patent/EP2214546A1/de
Application granted granted Critical
Publication of EP2214546B1 publication Critical patent/EP2214546B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00—Washing or rinsing machines for crockery or tableware
    • A47L15/42—Details
    • A47L15/4214—Water supply, recirculation or discharge arrangements; Devices therefor
    • A47L15/4219—Water recirculation
    • A47L15/4221—Arrangements for redirection of washing water, e.g. water diverters to selectively supply the spray arms
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/8593—Systems
    • Y10T137/877—With flow control means for branched passages
    • Y10T137/87909—Containing rotary valve

Definitions

  • the present invention relates to a water-conducting household appliance according to the preamble of patent claim 1.
  • water switches are used to control liquid flows in water-bearing household appliance.
  • water softeners serve to deliver washing or rinsing water, for example, to a first or a second rinsing chamber of two rinsing chambers.
  • water softeners serve to deliver rinsing water, also called rinsing liquors, for example, alternatively to a spray arm for an upper basket or to a spray arm for a lower basket of the respective dishwasher or at the same time to both spray arms.
  • a rotatable spool which connects by means of a pivot tube an inlet channel with one of a plurality of drain channels.
  • the pivot tube has a pivot pin which is arranged in the manner of a ball joint in a socket of the inlet channel.
  • a hollow cylindrical sealing member is fixed, which slides in a cylindrical concentric with the lateral surface of the housing extending guide.
  • a mechanical sealing device is only suitable for sealing in a cylindrical housing.
  • the prior art mechanical sealing device of this type is not suitable for sealing passages passing through a flat rotary disk with respect to these fluid discharge lines which are opposed to flat disks.
  • an undesirable pressure loss in the water flow to be distributed by the deflection by means of the pivot tube occur.
  • Another known water switch ( DE 101 33 130 A1 ) consists of a in the pressure chamber of a circulating pump before branching pressure port arranged rotary valve for locking and releasing the discharge nozzle for rinsing liquid and located outside and inside the pressure chamber drive for the rotary valve.
  • the rotary valve in question is formed by a cylindrical member, in the cylinder wall, there are one or more apertures between one and more movable closure elements with valve function.
  • the apertures and the closure elements are in their relative position with respect to the discharge nozzle, the water inlet or water outlet nozzle formed so that depending on the rotation of the rotary valve, the cylinder wall opposite the discharge nozzle are released or sealed off sealing.
  • this known sealing device is also suitable only for the sealing of openings provided in a cylinder wall.
  • the prior art mechanical sealing device of this type is not suitable for sealing passages passing through a flat rotary disk with respect to these fluid discharge lines which are opposed to flat disks.
  • an unwanted pressure loss occurs in the water flow to be distributed by its deflection in the mentioned rotary valve even in this known water switch.
  • the present invention is therefore based on the object, a water-conducting household appliance, such as a dishwasher or washing machine, with at least one water switch in such a way that an effective sealing of a transition region between an adjustable fluid distributor body, the one to be discharged from one or more fluid-discharge fluid from a fluid supply line can be fed and inlet areas of the respective fluid discharge lines can be achieved and at the same time reduce the pressure loss in the fluid delivery.
  • the invention relates to a water-conducting household appliance, in particular dishwashing or washing machine, comprising at least one water diverter with at least one adjustable fluid distributor body, to which a fluid to be discharged optionally through one or more fluid discharge lines can be supplied by a fluid supply line. Then, a seal of a transition region between the adjustable fluid distributor body and inlet regions of the respective fluid discharge lines can be provided.
  • the erfindungsgzeße solution is characterized in that the fluid distributor body has a plurality of through holes whose passage openings are each designed to seal such funnel-shaped, that the fluid pressure of the transition region between the outlet side of the respective passage opening and the inlet region in the respective fluid-discharge line flowing fluid is lower as the pressure in the surrounding area surrounding the transition area in question.
  • the fluid distributor body can be designed as an adjustable, in particular displaceable plate, for example, has a rectangular basic shape.
  • the fluid distributor body is designed as a hub.
  • the invention has the advantage that in a particularly simple manner, a transition region between a rotatable fluid distributor body formed by a flat turntable to which a fluid to be discharged to one or more fluid discharge conduits can be supplied from a fluid supply line, and the inlet regions of the respective fluid -Ab187technischen can be safely sealed by the respective through holes are formed as Venturiö réelleen such that the fluid pressure of the transition region between the outlet side of the respective passage opening and the inlet region in the respective fluid-discharge line flowing fluid is lower than the pressure in the respective transition region surrounding surrounding area. In this way, it is ensured that no fluid exits from the passage openings into the surrounding area in the transition area mentioned.
  • the sealing device according to the present invention can be completely done without mechanical seal body or elements, which in any case in the case of designed as a flat turntable rotary fluid body only - if at all possible - would be difficult to implement.
  • the present invention provides a relatively simple way to be able to manage with the fluid discharge through the respective fluid distributor body with less pressure loss than in the known water softs considered at the outset.
  • the through-openings of the rotary disk in the device according to the present invention are expediently connected to the fluid Supply line and to the fluid discharge lines each aligned such that the fluid flow directions extend into and out of the through holes in the axial direction of the hub.
  • This one comes from a relatively low flow rate for the transport of the fluid.
  • the relevant delivery rate is lower than in the case of the known water channels considered at the outset.
  • a lower-power feed pump motor can be used than in the mentioned known water switches.
  • an extension part which adjoins the peripheral area of the rotary disk and is connected to the fluid supply line.
  • a dishwasher GS is shown in its scope sufficient for an understanding of the present invention.
  • the dishwasher GS contains a preferably closable washing container, according to Fig. 1 contains a wet area NB.
  • this wet area NB is at least one dish rack - in the present case, however, two baskets are provided, namely a lower basket UK and an upper basket arranged above OK.
  • a lower spray arm US is arranged, which - as indicated by spray jets - allows to deliver a rinsing liquor from its upper side to the lower basket UK and optionally located therein Spülgut.
  • the lower spray arm US rotates in a known manner due to the water pressure of the rinsing liquor discharged by him.
  • an upper spray arm OS is arranged, which in a similar manner as the lower spray arm US allows a rinsing liquor from its upper side to the upper basket OK and to optionally leave it in Spülgut - as is also indicated by spray jets.
  • This upper spray arm OS also rotates as a result of the water pressure of the rinsing liquor discharged by it.
  • a so-called roof shower DB which may be formed for example by a rotatable spray arm, which is able to deliver a rinsing liquor from its underside in the direction of the upper basket OK and thus on the lower basket UK, as in Fig. 1 is indicated by spray jets.
  • the flushing liquors for the lower spray arm US, the upper spray arm OS and the overhead shower DB are provided by pipes R1, R2 and R3, respectively, from a pump pot PT which is located in the lower part of the dishwasher GS.
  • the pump pot PT which is preferably circular in shape in its upper region and received by a correspondingly shaped receiving opening of a pump pot receiver PA, constitutes a pump device for providing the aforementioned rinsing liquors, as will become apparent hereinafter.
  • These rinsing liquors are first fed by water from a water supply line (not shown) connected to the dishwasher GS and after receiving a fixed amount of water by using the rinsing water delivered by the rinsing liquors.
  • a sealing ring DI is arranged, by means of which a seal of the area of the dishwasher GS located below the pump pot receptacle PA is ensured with respect to its wet area NB.
  • this area of the dishwasher GS which is effectively a dry area, no water penetrate.
  • the tubes R2 and R3 it should also be noted here that they can be provided on an actual realization of the dishwasher GS on or in the rear wall of the washing container.
  • the mentioned control device ST is in Fig. 1 is shown as a control device containing, for example, six program keys I, II, III, IV, V and VI which, by operating their program keys I to VI, allows the water diverter WW to be set to one of six different setting positions.
  • the control device can be formed by a microcontroller with its own software or by a microcomputer system which has a central processing unit or CPU, a ROM program memory, a RAM main memory and interface circuits such as UART or USART. Contains circuits that act as interface circuits between the program buttons I to VI and the water softening motor WM on the one hand and the CPU or CPU on the other.
  • FIG. 2 shown perspective view of the pump pot PT, which according to the invention in the in Fig. 1 Dishwasher shown GS may be included.
  • the pump pot PT is in Fig. 2 illustrated with its essential facilities. These facilities include those associated with Fig. 1 also already mentioned circulation pump PU, which is driven by an electric pump motor PM.
  • the institutions concerned are associated with Fig. 1 also already mentioned water diverter WW, which consists of a receptacle with an upper part OT and a lower part UT.
  • this receptacle of the water-diverter WW there is a flat turntable provided with through-holes, which can be adjusted to different setting or rotational positions by means of an electric water-motor motor WM.
  • the combinations in question include the delivery of the rinsing water supplied through the supply pipe ZR to one of the discharge pipes AR1, AR2, AR3, the simultaneous delivery of said rinsing water to a plurality of the respective discharge pipes and the inhibition of such a rinsing water delivery.
  • FIG. 3 is not to scale a plan view of the lower part UT of the receptacle of in Fig. 2 illustrated water diverter WW illustrated.
  • This lower part UT is directly with the feed tube ZR according to Fig. 2 connected.
  • the outlet region of the feed tube ZR is surrounded on the upper side of the lower part UT by an extension part in the form of an oval-shaped sealing bead DW, which preferably consists of a soft-elastic plastic or rubber.
  • an extension part in the form of an oval-shaped sealing bead DW which preferably consists of a soft-elastic plastic or rubber.
  • Dichtungswulstes DW is the already mentioned, through holes having flat turntable, the 4, 5 and 6 can be seen, so tight that in each setting or rotational position between the sealing bead DW and the respective turntable no or no appreciable water leakage - or generally no fluid leakage - takes place.
  • FIG. 2 illustrates a bottom view, not to scale, of the aforesaid turntable DR included in the water diverter WW and shown by the perspective view in FIG Fig. 2 shown water softening motor WM is rotatable.
  • the turntable DR which is preferably made of a solid material or a viscoelastic plastic, has a number of here round through-holes DO1, DO2, DO3, DO4, DO5, DO6 and DO7, which also correspond to different tasks of the each to be issued by them rinsing liquors are formed differently large.
  • Each of the through-holes DO1, DO2, DO3, DO4, DO5, DO6 and DO7 is associated with its own inlet region EB1, EB2, EB3, EB4, EB5, EB6 and EB7.
  • Turntable DR In the middle of Turntable DR is a center hole ML, with which the respective hub DR is receivable by a drive shaft, which by the in Fig. 2 shown waterway motor WM is driven.
  • the respective inlet regions EB1 to EB7 are shaped so that they interact with the in Fig. 3 illustrated sealing bead DW to allow each a fixed combination of the through holes DO1 to D07 for a Spülwasser pentechnisch or for a lock of such Spülement pen effet to position, as will be seen in more detail below.
  • all inlet regions EB1 to EB7 are provided with surrounding borders which protrude from the turntable underside.
  • the individual inlet regions EB1 to EB7 are distinguished from one another and can thus be attached to the sealing bead DW of the in Fig. 2 represented lower part UT of the receptacle of the water diverter WW abut and supplied from the supply pipe ZR rinse water.
  • the turntable DR is illustrated in more detail.
  • the through-openings DO1 and DO5 with their inlet regions EB1 and EB5 and the center hole ML are illustrated in greater detail.
  • the inlet regions EB1 and EB5 associated with the through-openings DO1, DO5 are each funnel-shaped.
  • the thickness of the rotary disc DR is in the range between 5mm and 20mm, preferably about 12.5mm.
  • the just mentioned funnel-shaped design has a Venturi effect for the respectively through the respective through-holes DO1, DO5 from their inlet regions EB1 and EB5 forth respectively supplied rinse water result. The effect of the venturi effect in question will be discussed in more detail below.
  • Fig. 6 shows the in Fig. 4 in a bottom view shown turntable DR from its top.
  • the passage openings DO1 to D07 and the center hole ML can be seen.
  • the passage opening DO1 and the passage DO5 serve to deliver a rinsing liquor to the in Fig. 2 illustrated discharge pipe AR1 and thus for delivery to the lower spray arm US according to Fig. 1
  • the passage openings DO2, DO3 and D07 serve to deliver a rinsing liquor to the discharge pipe AR2 in accordance with FIG Fig. 2 and thus for delivery to the upper spray arm OS according to Fig. 1
  • the passage openings DO3 and D06 serve to deliver a rinsing liquor to the discharge pipe AR3 in accordance with Fig.
  • Fig. 6 In Fig. 6 are indicated by dashed lines, the positions of the through holes DO3 and D06 in a total of six different setting or rotational positions P1, P2, P3, P4, P5 and P6, in which the hub DR through the illustrated water softening motor WM in Fig. 2 in 60 ° increments around the center hole ML is adjustable.
  • the rotary disc DR In these six different rotational or adjustment positions P1 to P6, the rotary disc DR has six different effective ranges WB1, WB2, WB3, WB4, WB5 and WB6, which generally extend over an angle range between approximately 25 ° and 40 °.
  • the feed pipe ZR is in accordance with Fig. 2 connected to any of the through holes DO1 to D07.
  • a rinsing water supply from the supply pipe ZR to the exhaust pipes AR1, AR2, AR3 is shown in FIG Fig. 2 blocked.
  • the dishwasher GS is thus in the OFF state.
  • the passage openings DO1 and D02 between the feed tube ZR are within the associated effective area WB2 according to Fig. 2 and the exhaust pipes AR1 and AR2 according to FIG Fig. 2 connected.
  • the lower spray arm US and the upper spray arm OS are according to Fig. 1 Flushing supplied simultaneously.
  • a connection between the supply pipe ZR is within the associated area of action WB4 according to Fig. 2 and only the exhaust pipe AR2 according to Fig. 2 and thus solely to the upper spray arm OS according to Fig. 1 produced.
  • FIG. 4 illustrates, in a non-scale schematic representation, the top part OT of the in.
  • FIG Fig. 2 shown receiving container of the water diverter WW consisting of the already on hand of Fig. 3 explained lower part UT and the upper part OT.
  • Out Fig. 7 are the three aforementioned exhaust pipes AR1, AR2 and AR3 in their relative position to each other visible.
  • This situation corresponds to the in Fig. 6 shown representation of the through holes DO1, D02 and DO3. Due to this position of the discharge pipes AR1, AR2 and AR3 with respect to the 4 and 6 apparent through-holes DO1, DO2, DO3, DO4, DO5, DO6 and D07 are in connection with Fig. 6 explained setting positions P2 to P6 of the in Fig. 2 specified supply pipe ZR to the mentioned discharge pipes AR1, AR2 and AR3 flushing liquors deductible; in the setting position P1, no such rinsing liquor delivery takes place.
  • Fig. 8 illustrates in a non-scale sectional view of a realized construction of the in Fig. 2 shown water diverter WW with the existing from the upper part OT and the lower part UT receptacle for the turntable DR.
  • the rotary disk DR is aligned with its passage opening DO1 and its associated inlet region EB1 between the feed pipe ZR and the discharge pipe AR1. From the further passage DO5 is in Fig. 8 only their associated Inlet region EB5 shown, however, has no connection to another discharge pipe.
  • discharge pipe AR3 which to the in Fig. 1 shown roof shower DB points in Fig. 8 no connection to a through hole of the rotary disk DR.
  • this pressure reduction is so strong that the pressure of the wash liquor discharged through a through-hole DU formed in the aforementioned upper part OT or generally expressed fluid pressure of the fluid flowing through the transitional area between the exit side of the through-hole DO1 and the entrance area into the discharge pipe AR1 is lower than the pressure in the surrounding area surrounding the respective transition area.
  • atmospheric pressure of 1 bar normally prevails in the surrounding area of the relevant arrangement.
  • Fig. 8 Centering webs (and a total of three) shown, one of which is denoted by ZS.
  • some locking elements RA are provided, which together with the mentioned centering webs ZS for receiving a support body for the lower spray arm US in Fig. 1 Dishwasher GS shown schematically serve.
  • the present invention is not limited to the use of water as a fluid to the transition region between a rotatable fluid distributor body, which is supplied to a fluid to be discharged from one or more fluid discharge lines fluid from a fluid supply line, and inlet areas of the To seal the relevant fluid discharge lines. Rather, the present invention can be used to adequately seal transition areas in devices employing fluids other than water, such as oil or gases.

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  • Engineering & Computer Science (AREA)
  • Water Supply & Treatment (AREA)
  • Textile Engineering (AREA)
  • Washing And Drying Of Tableware (AREA)
  • Cleaning By Liquid Or Steam (AREA)
  • Cookers (AREA)
  • Pens And Brushes (AREA)
  • Massaging Devices (AREA)
  • Water Treatment By Sorption (AREA)
  • Domestic Plumbing Installations (AREA)
EP20080853213 2007-11-27 2008-10-28 Wasserführendes haushaltsgerät mit einer wasserweiche Active EP2214546B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL08853213T PL2214546T3 (pl) 2007-11-27 2008-10-28 Prowadzące wodę urządzenie gospodarstwa domowego z rozdzielaczem wody

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102007056921A DE102007056921A1 (de) 2007-11-27 2007-11-27 Wasserführendes Haushaltsgerät mit einer Wasserweiche
PCT/EP2008/064588 WO2009068393A1 (de) 2007-11-27 2008-10-28 Wasserführendes haushaltsgerät mit einer wasserweiche

Publications (2)

Publication Number Publication Date
EP2214546A1 EP2214546A1 (de) 2010-08-11
EP2214546B1 true EP2214546B1 (de) 2011-04-13

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP20080853213 Active EP2214546B1 (de) 2007-11-27 2008-10-28 Wasserführendes haushaltsgerät mit einer wasserweiche

Country Status (8)

Country Link
US (1) US8915257B2 (pl)
EP (1) EP2214546B1 (pl)
CN (1) CN101877989B (pl)
AT (1) ATE505126T1 (pl)
DE (3) DE102007056921A1 (pl)
ES (1) ES2362820T3 (pl)
PL (1) PL2214546T3 (pl)
WO (1) WO2009068393A1 (pl)

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Also Published As

Publication number Publication date
WO2009068393A1 (de) 2009-06-04
DE202007019198U1 (de) 2011-02-10
DE502008003212D1 (de) 2011-05-26
US20100269938A1 (en) 2010-10-28
CN101877989A (zh) 2010-11-03
DE102007056921A1 (de) 2009-05-28
ES2362820T3 (es) 2011-07-13
CN101877989B (zh) 2012-08-08
US8915257B2 (en) 2014-12-23
ATE505126T1 (de) 2011-04-15
PL2214546T3 (pl) 2011-09-30
EP2214546A1 (de) 2010-08-11

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