EP2404539B1 - Water distributor for a water conducting domestic appliance - Google Patents
Water distributor for a water conducting domestic appliance Download PDFInfo
- Publication number
- EP2404539B1 EP2404539B1 EP11183962A EP11183962A EP2404539B1 EP 2404539 B1 EP2404539 B1 EP 2404539B1 EP 11183962 A EP11183962 A EP 11183962A EP 11183962 A EP11183962 A EP 11183962A EP 2404539 B1 EP2404539 B1 EP 2404539B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- water
- passage openings
- switch
- feed path
- turntable
- 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
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 111
- 239000012530 fluid Substances 0.000 claims abstract description 31
- 238000005406 washing Methods 0.000 claims description 9
- 238000007599 discharging Methods 0.000 abstract 1
- 238000007789 sealing Methods 0.000 description 24
- 239000007921 spray Substances 0.000 description 24
- 230000000694 effects Effects 0.000 description 11
- 230000007704 transition Effects 0.000 description 8
- 230000008901 benefit Effects 0.000 description 7
- 239000008237 rinsing water Substances 0.000 description 7
- 239000011324 bead Substances 0.000 description 4
- 238000011010 flushing procedure Methods 0.000 description 4
- 238000004851 dishwashing Methods 0.000 description 2
- 230000009969 flowable effect Effects 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 238000001363 water suppression through gradient tailored excitation Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 239000011343 solid material Substances 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
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
- 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
- D06F39/088—Liquid supply arrangements
-
- 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
Definitions
- the present invention relates to a water diverter for a water-conducting household appliance according to the preamble of 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.
- such 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 through-holes passing through a flat rotary disk with respect to fluid discharge lines facing this flat rotary disk.
- 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 through-holes passing through a flat rotary disk with respect to fluid discharge lines facing this flat rotary disk.
- 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.
- Another known water switch ( US 5,331,986 ) has a rotatable valve body, a radially arranged inlet and a plurality of axially arranged outlets on. On the side facing the inlet of the valve body, a fluid chamber is provided, so that the water gate requires an undesirably large space. In addition, the fluid undergoes a deflection of 90 ° on its way from the inlet to the outlet, so that a significant pressure drop occurs.
- the invention is therefore based on the object to provide a water diverter for a water-conducting household appliance, in particular a dishwasher or washing machine, with reduced pressure loss.
- the invention relates to a water-conducting household appliance, in particular dishwashing or washing machine, at least comprising a water separator, which is formed by an adjustable fluid distribution body provided with one or more through openings.
- the fluid distributor body is designed as a turntable. Furthermore, it is preferably provided that the water flow direction is defined in and out of the through-openings in each case in a substantially axial direction of the rotary disk.
- the present invention provides a possibility for forming the respective passage openings in the turntable as venturi openings in such a way that the pressure of the transition area between the exit side of the exit wall each passage opening and the inlet region in the respective Wasserabriosweg flowing water is lower than the pressure in the respective transition region surrounding surrounding area. This means that can be done in the said transition area without additional mechanical sealing devices.
- an extension part which adjoins the peripheral area of the turntable and is connected to the water supply path.
- the through holes in the turntable based on the Wasserzu Georgiaweg and the Wasserab adoptedwege each laid and shaped Einstocked Kunststoffe that in different rotational positions of the turntable each have a fixed number of Wasserab adoptedwege connected to the Wasserzu Switzerlandweg for water passage is.
- the water diverter according to the present invention is contained in a domestic appliance, in particular in a dishwasher.
- a domestic appliance thus comprises the advantages that have been pointed out above with regard to the water diverter according to the invention.
- 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 this 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 its upper region and of a corresponding formed receiving opening of a pump pot holder PA, represents 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. This will be discussed further below.
- 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, includes a RAM memory and interface circuits, such as UART and USART circuits, which act as interface circuits between the program keys I to VI and the water softening motor WM on the one hand and the central processing unit or CPU on the other hand.
- a microcontroller with its own software or by a microcomputer system which has a central processing unit or CPU, a ROM program memory, includes a RAM memory and interface circuits, such as UART and USART circuits, which act as interface circuits between the program keys I to VI and the water softening motor WM on the one hand and the central processing unit or CPU on the other hand.
- 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.
- 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.
- a center hole ML In the center of the rotary disk DR is a center hole ML, with which the respective rotary disk 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 a respective fixed combination of the through holes DO1 to DO7 allow for a Spülwasser pentechnisch or for a lock of such Spülement pen effet to position, as will be seen in more detail below.
- 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 each other and therefore can each at the sealing bead DW of 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 DO7 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 DO7 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 DO6 serve to deliver a rinsing liquor to the discharge pipe AR3 in accordance with Fig.
- Fig. 6 are dashed through Representing the positions of the passage openings DO3 and DO6 in a total of six different setting or rotational positions P1, P2, P3, P4, P5 and P6 indicated, in which the hub DR through the illustrated water wetting motor WM in Fig. 2 in 60 ° increments around the center hole ML is adjustable.
- 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 none of the through holes DO1 to DO7.
- 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 DO2 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 passage openings DO1, DO2 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 DO7 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.
- 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)
- Textile Engineering (AREA)
- Water Supply & Treatment (AREA)
- Washing And Drying Of Tableware (AREA)
- Domestic Plumbing Installations (AREA)
- Detail Structures Of Washing Machines And Dryers (AREA)
- Multiple-Way Valves (AREA)
- Sliding-Contact Bearings (AREA)
Abstract
Description
Die vorliegende Erfindung betrifft eine Wasserweiche für ein wasserführendes Haushaltsgerät nach dem Oberbegriff des Anspruchs 1.The present invention relates to a water diverter for a water-conducting household appliance according to the preamble of claim 1.
In wasserführenden Haushaltsgeräten, wie beispielsweise Wasch- oder Geschirrspülmaschinen, werden Wasserweichen eingesetzt, um Flüssigkeitsströme im wasserführenden Haushaltsgerät zu steuern. Im Falle eines Einsatzes in einer Waschmaschine dienen Wasserweichen dazu, Wasch- oder Spülwasser beispielsweise an eine erste oder eine zweite Spülkammer von zwei Spülkammern abzugeben. Im Falle des Einsatzes in Geschirrspülmaschinen dienen Wasserweichen dazu, Spülwasser, auch Spülflotten genannt, beispielsweise alternativ an einen Sprüharm für einen Oberkorb oder an einen Sprüharm für einen Unterkorb der jeweiligen Geschirrspülmaschine oder gleichzeitig an beide Sprüharme abzugeben.In water-bearing household appliances, such as washing machines or dishwashers, water switches are used to control liquid flows in water-bearing household appliance. In the case of use in a washing machine, water softeners serve to deliver washing or rinsing water, for example, to a first or a second rinsing chamber of two rinsing chambers. In the case of use in dishwashers, 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.
Bei einer bekannten Wasserweiche (
Eine andere bekannte Wasserweiche (
Eine weitere bekannte Wasserweiche (
Es ist auch schon eine Dehnungsverbindungsvorrichtung für eine ein unter Druck und hoher Temperatur stehendes fließfähiges Medium führende Rohrleitung, insbesondere für eine den Auspuff eines Kraftwagens mit einem der Verdichtung des Kraftstoffgemisches dienenden Turbolader verbindende Rohrleitung bekannt (
Der Erfindung liegt daher die Aufgabe zugrunde, eine Wasserweiche für ein wasserführendes Haushaltsgerät, insbesondere eine Geschirrspül- oder Waschmaschine, mit reduziertem Druckverlust bereitzustellen.The invention is therefore based on the object to provide a water diverter for a water-conducting household appliance, in particular a dishwasher or washing machine, with reduced pressure loss.
Die Erfindung geht aus von einem wasserführenden Haushaltsgerät, insbesondere Geschirrspül- oder Waschmaschine, wenigstens aufweisend eine Wasserweiche, die durch einen mit einer oder mehreren Durchgangsöffnungen versehenen, verstellbaren Fluidverteilerkörper gebildet ist.The invention relates to a water-conducting household appliance, in particular dishwashing or washing machine, at least comprising a water separator, which is formed by an adjustable fluid distribution body provided with one or more through openings.
Die erfindungsgemäße Lösung ist durch die Merkmale des Anspruchs 1 gekennzeichnet.The solution according to the invention is characterized by the features of claim 1.
Erfindungsgemäß ist vorgesehen, dass der Fluidverteilerkörper als Drehscheibe ausgebildet ist. Ferner ist vorzugsweise vorgesehen, dass die Wasserströmungsrichtung in die Durchgangsöffnungen hinein und aus diesen heraus jeweils in im Wesentlichen axialer Richtung der Drehscheibe festgelegt ist.According to the invention, it is provided that the fluid distributor body is designed as a turntable. Furthermore, it is preferably provided that the water flow direction is defined in and out of the through-openings in each case in a substantially axial direction of the rotary disk.
Hierdurch ergibt sich der Vorteil, dass der Wasserdurchtritt durch die Wasserweiche gemäß der Erfindung einen geringeren Druckverlust erfährt, als bei den eingangs betrachteten bekannten Wasserweichen. Der betreffende Druckverlust beträgt bei der Wasserweiche gemäß der Erfindung beispielsweise 20mbar und ist damit deutlich niedriger als jener bei den eingangs betrachteten bekannten Wasserweichen. Daraus resultiert der weitere Vorteil, dass durch die vorliegende Erfindung mit geringerer Förderleistung für das durch die Wasserweiche abzugebende Wasser und damit mit einem leistungsschwächeren Pumpenmotor für den Antrieb einer das betreffende Wasser bereitstellenden Wasserpumpe ausgekommen werden kann als bei den eingangs betrachteten bekannten Wasserweichen.This has the advantage that the passage of water through the water diverter according to the invention experiences a lower pressure drop than in the case of the known water diverters considered at the outset. The pressure loss in question is in the water switch according to the invention, for example, 20mbar and is thus significantly lower than that of the initially considered known water points. This results in the further advantage that can be provided by the present invention with lower flow rate for the water to be dispensed through the water and thus with a lower performance pump motor for driving a water pump providing the water in question as in the initially considered known water points.
Überdies eröffnet die vorliegende Erfindung durch Ausbildung der Durchgangsöffnungen auf der dem Wasserzuführweg zugewandten Seite der Drehscheibe mit trichterförmig erweiterten Einführbereichen auf relativ einfache Weise eine Möglichkeit dafür, die jeweiligen Durchgangsöffnungen in der Drehscheibe als Venturiöffnungen derart auszubilden, dass der Druck des den Übergangsbereich zwischen der Austrittsseite der jeweiligen Durchgangsöffnung und dem Eintrittsbereich in den jeweiligen Wasserabführweg durchströmenden Wassers jeweils niedriger ist als der Druck im den betreffenden Übergangsbereich umgebenden Umgebungsbereich. Dies bedeutet, dass in dem genannten Übergangsbereich ohne zusätzliche mechanische Dichtungsvorrichtungen ausgekommen werden kann.Moreover, by forming the passage openings on the side of the turntable facing the water supply path with funnel-shaped widened lead-in areas, the present invention provides a possibility for forming the respective passage openings in the turntable as venturi openings in such a way that the pressure of the transition area between the exit side of the exit wall each passage opening and the inlet region in the respective Wasserabführweg flowing water is lower than the pressure in the respective transition region surrounding surrounding area. This means that can be done in the said transition area without additional mechanical sealing devices.
Erfindungsgemäß ist auf der dem Wasserzuführweg zugewandten Seite der Durchgangsöffnungen ein an dem Umfangsbereich der Drehscheibe anliegendes, mit dem Wasserzuführweg verbundenes Erweiterungsteil vorgesehen. Dies ermöglicht auf relativ einfache Weise, Durchgangsöffnungen der genannten Drehscheibe in unterschiedlicher Anzahl mit Wasser von dem Wasserzuführweg zu versorgen und damit an entsprechende Wasserabführwege unter geringem Druckverlust in der Wasserweiche und unter Ausnutzung der erwähnten Dichtungswirkung durch den Venturieffekt weiterzuleiten.According to the invention, on the side of the passage openings facing the water supply path, there is provided an extension part, which adjoins the peripheral area of the turntable and is connected to the water supply path. This makes it possible in a relatively simple manner to supply through holes of the turntable in different numbers with water from the Wasserzuführweg and thus forward to appropriate Wasserabführwege under low pressure drop in the water switch and taking advantage of the aforementioned sealing effect by the Venturi effect.
Zweckmäßigerweise ist das vorstehend erwähnte Erweiterungsteil im Bereich der Umfangsrichtung der Drehscheibe verlaufend ovalförmig ausgebildet. Dadurch ergibt sich der Vorteil einer besonders einfachen Gestaltungsmöglichkeit für die Durchgangsöffnungen in der genannten Drehscheibe.Conveniently, the above-mentioned extension part in the region of the circumferential direction of the turntable extending oval shaped. This results in the advantage of a particularly simple design possibility for the passage openings in said hub.
In weiterer zweckmäßiger Ausgestaltung der Wasserweiche gemäß der vorliegenden Erfindung weisen die Durchgangsöffnungen in der Drehscheibe bezogen auf den Wasserzuführweg und die Wasserabführwege jeweils so gelegte und geformte Einführbereiche auf, dass in unterschiedlichen Drehstellungen der Drehscheibe jeweils eine festgelegte Anzahl der Wasserabführwege mit dem Wasserzuführweg für einen Wasserdurchtritt verbunden ist. Hierdurch ergibt sich der Vorteil, dass die Drehscheibe hinsichtlich der jeweils im Hinblick auf einen geringen Druckverlust in der Wasserweiche und unter Ausnutzung des Venturieffekts gestalteten Durchgangsöffnungen so ausgebildet werden kann, dass durch die Durchgangsöffnungen in jeweils vorgegebener Anzahl eine Wasserabführung von dem Wasserzuführweg an eine jeweils festgelegte Anzahl von Wasserabführwegen ermöglicht ist.In a further expedient embodiment of the water switch according to the present invention, the through holes in the turntable based on the Wasserzuführweg and the Wasserabführwege each laid and shaped Einführbereiche that in different rotational positions of the turntable each have a fixed number of Wasserabführwege connected to the Wasserzuführweg for water passage is. This results in the advantage that the turntable can be designed with respect to the each with a view to a low pressure drop in the water gate and taking advantage of the venturi effect through holes so that through the through holes in each case predetermined number of water drainage of the Wasserzuführweg to a set number of Wasserabführwegen is possible.
Vorzugsweise ist die Wasserweiche gemäß der vorliegenden Erfindung in einem Hausgerät, und zwar insbesondere in einer Geschirrspülmaschine enthalten. Ein solches Hausgerät umfasst somit die Vorteile, die vorstehend bezüglich der Wasserweiche gemäß der Erfindung aufgezeigt worden sind.Preferably, the water diverter according to the present invention is contained in a domestic appliance, in particular in a dishwasher. Such a domestic appliance thus comprises the advantages that have been pointed out above with regard to the water diverter according to the invention.
Anhand von Zeichnungen wird die Erfindung nachstehend an einem Ausführungsbeispiel näher erläutert.With reference to drawings, the invention is explained in more detail below using an exemplary embodiment.
In den Zeichnungen zeigen
- Fig. 1
- eine schematische Darstellung einer Geschirrspülmaschine, bei der die vorliegende Erfindung angewandt ist,
- Fig. 2
- eine perspektivische Darstellung in nicht maßstäblicher Größe einer gemäß der Erfindung ausgestalteten Pumpentopfvorrichtung, wie sie in der Geschirrspülmaschine gemäß
Fig. 1 einsetzbar ist, - Fig. 3
- eine Draufsicht in nicht maßstäblicher Größe auf ein Unterteil eines Aufnahmebehälters einer mit der in
Fig. 2 dargestellten Pumpentopfvorrichtung verbundenen Wasserweiche, die gemäß der Erfindung ausgebildet ist, - Fig. 4
- eine Unteransicht in nicht maßstäblicher Größe einer flachen Drehscheibe die in dem in
Fig. 2 dargestellten Aufnahmebehälter der Wasserweiche enthalten ist, - Fig. 5
- eine Schnittansicht der Drehscheibe längs der in
Fig. 4 eingetragenen Schnittlinie A-A, - Fig. 6
- eine Draufsicht auf die in
Fig. 4 in einer Unteransicht dargestellte flache Drehscheibe, - Fig. 7
- in einer nicht maßstäblichen Darstellung eine Draufsicht auf das Oberteil des in
Fig. 2 dargestellten Aufnahmebehälters der Wasserweiche und - Fig. 8
- in nicht maßstäblicher Größe eine ausschnittweise Darstellung der in
Fig. 2 gezeigten, gemäß der Erfindung ausgebildeten Wasserweiche mit der zwischen dem erwähnten Unterteil und dem erwähnten Oberteil des Aufnahmebehälters angeordneten flachen Drehscheibe.
- Fig. 1
- a schematic representation of a dishwasher to which the present invention is applied,
- Fig. 2
- a perspective view in scale not to scale of a designed according to the invention sump device, as used in the dishwasher according to
Fig. 1 can be used, - Fig. 3
- a plan view of not to scale on a lower part of a receptacle one with the in
Fig. 2 illustrated sump device connected water separator, which is formed according to the invention, - Fig. 4
- a bottom view to scale to a flat turntable in the in
Fig. 2 Contained receptacle of the water distributor is included, - Fig. 5
- a sectional view of the hub along the in
Fig. 4 registered section line AA, - Fig. 6
- a top view of the in
Fig. 4 in a bottom view shown flat turntable, - Fig. 7
- in a not to scale representation of a plan view of the upper part of in
Fig. 2 shown receptacle of the water switch and - Fig. 8
- in not to scale a fragmentary representation of in
Fig. 2 shown, formed according to the invention waterway with the arranged between the mentioned lower part and said upper part of the receptacle flat turntable.
Bevor auf die Zeichnungen näher eingegangen wird, sei zunächst angemerkt, dass gleiche Elemente bzw. Einrichtungen in sämtlichen Zeichnungsfiguren durch gleiche Bezugszeichen bezeichnet sind.Before referring to the drawings, it should first be noted that the same elements or devices in all drawing figures are denoted by the same reference numerals.
In der in
Im Nassbereich NB der Geschirrspülmaschine GS ist gemäß
Die Spülflotten für den unteren Sprüharm US, den oberen Sprüharm OS und die Dachbrause DB werden durch Rohre R1, R2 bzw. R3 von einem Pumpentopf PT bereitgestellt, der sich im unteren Teil der Geschirrspülmaschine GS befindet. Der Pumpentopf PT, der vorzugsweise in seinem oberen Bereich kreisförmig ausgebildet und von einer entsprechend geformten Aufnahmeöffnung einer Pumpentopfaufnahme PA aufgenommen ist, stellt eine Pumpenvorrichtung zur Bereitstellung der erwähnten Spülflotten dar, wie dies nachstehend noch näher ersichtlich werden wird. Diese Spülflotten werden zunächst durch Wasser von einer mit der Geschirrspülmaschine GS verbundenen Wasserzuführleitung (nicht dargestellt) gespeist und nach Aufnahme einer festgelegten Wassermenge durch Nutzung des durch die Spülflotten abgegebenen Spülwassers.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 its upper region and of a corresponding formed receiving opening of a pump pot holder PA, represents 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.
Zwischen der Pumpentopfaufnahme PA und dem in diese eingesetzten Pumpentopf PT ist, wie aus
Mit dem zuvor erwähnten Pumpentopf PT ist, wie in
Nunmehr wird auf die in
Im oberen Bereich des in
In
Jeder der Durchgangsöffnungen DO1, DO2, DO3, DO4, DO5, DO6 und DO7 ist ein eigener Einlaufbereich EB1, EB2, EB3, EB4, EB5, EB6 bzw. EB7 zugehörig. In der Mitte der Drehscheibe DR befindet sich ein Mittelloch ML, mit welchem die betreffende Drehscheibe DR von einer Antriebswelle aufnehmbar ist, die durch den in
In der in
Dadurch, dass die Durchgangsöffnungen DO1 bis DO7 mit ihren zugehörigen Einlaufbereichen EB1 bis EB7 in Bezug auf das Zuführrohr ZR und die Abführrohre AR1, AR2, AR3 so ausgerichtet sind, dass die Fluidströmungsrichtungen in die betreffenden Durchgangsöffnungen DO1 bis DO7 der Drehscheibe DR hinein und aus diesen heraus jeweils in axialer Richtung der Drehscheibe und damit praktisch in einer geraden Linie von dem Zuführrohr ZR zu den Abführrohren AR1, AR2, AR3 ohne eine Strömungsumlenkung verlaufen, ist zugleich in diesem Bereich eine Fluidströmung ohne nennenswerten Druckverlust sichergestellt. Der betreffende Druckverlust beträgt hier beispielsweise lediglich 20mbar, was deutlich niedriger ist als bei den bisher bekannten Wasserweichen.Characterized in that the passage openings DO1 to DO7 with their associated inlet regions EB1 to EB7 with respect to the feed tube ZR and the discharge tubes AR1, AR2, AR3 are aligned so that the fluid flow directions in the respective through holes DO1 to DO7 of the rotary disk DR in and out of these out in the axial direction of the hub and thus practically in a straight line from the feed tube ZR to the discharge pipes AR1, AR2, AR3 run without a flow deflection, at the same time in this area, a fluid flow is ensured without significant pressure loss. The pressure loss in question here is for example only 20mbar, which is significantly lower than in the previously known water points.
In der Einstellposition P1 mit dem Wirkungsbereich WB1 ist das Zuführrohr ZR gemäß
In der Einstellposition P2 sind innerhalb des dieser zugehörigen Wirkungsbereiches WB2 die Durchgangsöffnungen DO1 und DO2 zwischen dem Zuführrohr ZR gemäß
In der Einstellposition P3 wird durch die Drehscheibe DR innerhalb des Wirkungsbereiches WB3, der in der Größe jedem der anderen Wirkungsbereiche entspricht, durch die Durchgangsöffnung DO3 eine Verbindung zwischen dem Zuführrohr ZR gemäß
In der Einstellposition P4 ist innerhalb des dieser zugehörigen Wirkungsbereiches WB4 eine Verbindung zwischen dem Zuführrohr ZR gemäß
In der Einstellposition P5 der Drehscheibe DR ist innerhalb des Wirkungsbereiches WB5 eine Verbindung lediglich zwischen dem Zuführrohr ZR gemäß
In der Einstellposition P6 der Drehscheibe DR ist schließlich innerhalb des Wirkungsbereiches WB6 eine gleichzeitige Verbindung zwischen dem Zuführrohr ZR gemäß
Durch die aus
Innerhalb des Abführrohres AR1 sind in
Die vorstehend erläuterte Dichtungswirkung unter Ausnutzung des Venturieffekts tritt nicht nur in der in
Dadurch, dass die Durchgangsöffnungen DO1 bis DO7 mit ihren zugehörigen Einlaufbereichen EB1 bis EB7 in Bezug auf das Zuführrohr ZR und die Abführrohre AR1, AR2, AR3 so ausgerichtet sind, dass die Fluidströmungsrichtungen in die betreffenden Durchgangsöffnungen DO1 bis DO7 der Drehscheibe DR hinein und aus diesen heraus jeweils in axialer Richtung der Drehscheibe und damit praktisch in einer geraden Linie von dem Zuführrohr ZR zu den Abführrohren AR1, AR2, AR3 ohne eine Strömungsumlenkung verlaufen, ist zugleich in diesem Bereich eine Fluidströmung ohne Druckverlust sichergestellt. Abschließend sei noch angemerkt, dass die vorliegende Erfindung auf den Einsatz von Wasser als Fluid nicht beschränkt ist, um den Übergangsbereich zwischen einem drehbaren Fluidverteilerkörper, dem ein an ein oder mehrere Fluid-Abführleitungen abzuführendes Fluid von einer Fluid-Zuführleitung zuführbar ist, und Eintrittsbereichen des betreffenden Fluid-Abführleitungen abzudichten. Vielmehr kann die vorliegende Erfindung zur entsprechenden Abdichtung von Übergangsbereichen in Vorrichtungen angewandt werden, in denen andere Fluids als Wasser, wie beispielsweise Öl oder Gase zur Anwendung gelangen.Characterized in that the passage openings DO1 to DO7 with their associated inlet regions EB1 to EB7 with respect to the feed tube ZR and the discharge pipes AR1, AR2, AR3 are aligned so that the fluid flow directions into the relevant through holes DO1 to DO7 of the rotary disk DR in and out of these in the axial direction of the rotary disk and thus practically in a straight line from the supply pipe ZR to the discharge pipes AR1, AR2, AR3 without a flow deflection is at the same time in this area a fluid flow without pressure loss ensured. Finally, it should be noted that 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.
Im Hinblick auf die Durchgangsöffnungen DO1 bis DO7 der Drehscheibe DR sei noch darauf hingewiesen, dass diese gegebenenfalls auch alle gleich groß ausgebildet sein können und dass die den unterschiedlichen Dreh- bzw. Einstellpositionen P1 bis P6 der Drehscheibe DR zugehörigen Wirkungsbereiche WB1 bis WB6 gegebenenfalls unterschiedlich groß sein können.With regard to the through-holes DO1 to DO7 of the rotary disk DR, it should also be pointed out that they may also be of equal size and that the effective ranges WB1 to WB6 associated with the different rotary or setting positions P1 to P6 of the rotary disk DR may vary in size could be.
- AOAO
- WasserauffangöffnungWater collection opening
- AR1, AR2, AR3AR1, AR2, AR3
- WasserabführwegWasserabführweg
- DBDB
- Dachbrausetop spray
- Dldl
- Dichtungsringsealing ring
- DO1, DO2, DO3, DO4, DO5, DO6, DO7DO1, DO2, DO3, DO4, DO5, DO6, DO7
- DurchgangsöffnungThrough opening
- DRDR
- Drehscheibeturntable
- DUYOU
- DurchgangsöffnungThrough opening
- DWDW
- Erweiterungsteilextension part
- EB1, EB2, EB3, EB4, EBS, EB6, EB7EB1, EB2, EB3, EB4, EBS, EB6, EB7
- Einführbereichinsertion
- GSGS
- Geschirrspülmaschinedishwasher
- I, II, III, IV, V, VII, II, III, IV, V, VI
- Programmtastenprogram keys
- MLML
- Mittellochcenter hole
- NBNB
- Nassbereichwet areas
- OKOK
- Oberkorbupper basket
- OSOS
- Obere SprüheinrichtungUpper sprayer
- OTOT
- Oberteiltop
- P1, P2, P3, P4,P5, P6P1, P2, P3, P4, P5, P6
- Einstell- bzw. DrehpositionSetting or rotational position
- PAPA
- PumpentopfaufnahmeSump recording
- PMPM
- Pumpenmotorpump motor
- PTPT
- Pumpentopfsump
- PUPU
- Umwälzpumpecirculating pump
- R1, R2, R3R1, R2, R3
- Rohrpipe
- RARA
- Rastelementlocking element
- STST
- Steuereinrichtungcontrol device
- UKUK
- Unterkorblower basket
- USUS
- Untere SprüheinrichtungLower sprayer
- UTUT
- Unterteillower part
- WB1, WB2, WB3, WB4,WB1, WB2, WB3, WB4,
- Wirkungsbereich WB5, WB6Effective range WB5, WB6
- WMWM
- WasserweichenmotorWater switch engine
- WWWW
- Wasserweichewater points
- ZRZR
- WasserzuführwegWasserzuführweg
- ZSZS
- Zentrierstegcentering
Claims (6)
- Water switch (WW) for a water-conducting domestic appliance (GS), particularly a dishwasher or washing machine, which is formed by an adjustable fluid distributor body (DR) provided with one or more passage openings (DO1 to D07), wherein a water feed path (ZR) is so connectible with a respective water discharge path (AR1, AR2, AR3) via the respective passage openings (DO1 to D07) that the water flow direction into the passage openings (DO1 to D07) and out of these is fixed in substantially the same water flow direction, and wherein the fluid distributor body (DR) is constructed as a rotary disc (DR), characterised in that provided on the side of the passage openings (DO1 to D07) facing the water feed path (ZR) is a widening part (DW) adjoining the rotary disc (DR) and connected with the water feed path (ZR).
- Water switch (WW) according to claim 1, characterised in that the water flow direction into the passage openings (DO1 to D07) and out of these is respectively fixed in substantially the axial direction of the rotary disc (DR).
- Water switch (WW) according to claim 1 or 2, characterised in that the passage openings (DO1 to D07) on the side of the rotary disc facing the water feed path are formed by entry regions (EB1 to EB7) widening in funnel shape.
- Water switch (WW) according to any one of claims 1 to 3, characterised in that the widening part (DW) is formed to extend in oval shape in the circumferential region of the rotary disc (DR).
- Water switch (WW) according to any one of claims 1 to 4, characterised in that the entry regions (EB1 to EB7) of the passage openings (DO1 to D07) are each so shaped with respect to the water feed path (ZR) and the water discharge paths (AR1, AR2, AR3) that in different setting positions (P1 to P7) of the fluid distributor body (DR) a respective fixed number of the water discharge paths (AR1, AR2, AR3) is connected with the water feed path (ZR) for water passage.
- Water-conducting domestic appliance (GS), particularly dishwasher or washing machine, comprising at least one water switch (WW), characterised in that the water switch (WW) is constructed in accordance with any one of claims 1 to 5.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PL11183962T PL2404539T3 (en) | 2007-11-27 | 2008-10-28 | Water distributor for a water conducting domestic appliance |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102007056922A DE102007056922A1 (en) | 2007-11-27 | 2007-11-27 | Water-carrying household appliance with a water diverter |
EP08855595A EP2217128B1 (en) | 2007-11-27 | 2008-10-28 | Water diverter for a water-bearing domestic appliance |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP08855595.8 Division | 2008-10-28 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2404539A1 EP2404539A1 (en) | 2012-01-11 |
EP2404539B1 true EP2404539B1 (en) | 2013-03-20 |
Family
ID=40227543
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP08855595A Active EP2217128B1 (en) | 2007-11-27 | 2008-10-28 | Water diverter for a water-bearing domestic appliance |
EP11183962A Active EP2404539B1 (en) | 2007-11-27 | 2008-10-28 | Water distributor for a water conducting domestic appliance |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP08855595A Active EP2217128B1 (en) | 2007-11-27 | 2008-10-28 | Water diverter for a water-bearing domestic appliance |
Country Status (8)
Country | Link |
---|---|
US (1) | US8978674B2 (en) |
EP (2) | EP2217128B1 (en) |
CN (1) | CN101877987B (en) |
AT (1) | ATE536797T1 (en) |
DE (1) | DE102007056922A1 (en) |
ES (2) | ES2375805T3 (en) |
PL (2) | PL2217128T3 (en) |
WO (1) | WO2009068394A1 (en) |
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2007
- 2007-11-27 DE DE102007056922A patent/DE102007056922A1/en not_active Withdrawn
-
2008
- 2008-10-28 EP EP08855595A patent/EP2217128B1/en active Active
- 2008-10-28 AT AT08855595T patent/ATE536797T1/en active
- 2008-10-28 ES ES08855595T patent/ES2375805T3/en active Active
- 2008-10-28 PL PL08855595T patent/PL2217128T3/en unknown
- 2008-10-28 CN CN2008801179365A patent/CN101877987B/en active Active
- 2008-10-28 ES ES11183962T patent/ES2402606T3/en active Active
- 2008-10-28 PL PL11183962T patent/PL2404539T3/en unknown
- 2008-10-28 EP EP11183962A patent/EP2404539B1/en active Active
- 2008-10-28 WO PCT/EP2008/064589 patent/WO2009068394A1/en active Application Filing
- 2008-10-28 US US12/743,242 patent/US8978674B2/en active Active
Also Published As
Publication number | Publication date |
---|---|
EP2217128B1 (en) | 2011-12-14 |
DE102007056922A1 (en) | 2009-05-28 |
US20110114139A1 (en) | 2011-05-19 |
CN101877987B (en) | 2013-02-06 |
EP2404539A1 (en) | 2012-01-11 |
ES2375805T3 (en) | 2012-03-06 |
EP2217128A1 (en) | 2010-08-18 |
US8978674B2 (en) | 2015-03-17 |
CN101877987A (en) | 2010-11-03 |
PL2404539T3 (en) | 2013-08-30 |
WO2009068394A1 (en) | 2009-06-04 |
PL2217128T3 (en) | 2012-05-31 |
ES2402606T3 (en) | 2013-05-07 |
ATE536797T1 (en) | 2011-12-15 |
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