EP1660711A1 - Washing machine with a ventilation system - Google Patents

Washing machine with a ventilation system

Info

Publication number
EP1660711A1
EP1660711A1 EP03753530A EP03753530A EP1660711A1 EP 1660711 A1 EP1660711 A1 EP 1660711A1 EP 03753530 A EP03753530 A EP 03753530A EP 03753530 A EP03753530 A EP 03753530A EP 1660711 A1 EP1660711 A1 EP 1660711A1
Authority
EP
European Patent Office
Prior art keywords
tub
washing machine
ventilation
detergent
cover
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.)
Withdrawn
Application number
EP03753530A
Other languages
German (de)
French (fr)
Inventor
Edwin Bolduan
Andreas Hanau
Edmund Seiffert
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
Publication of EP1660711A1 publication Critical patent/EP1660711A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06FLAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F37/00Details specific to washing machines covered by groups D06F21/00 - D06F25/00
    • D06F37/26Casings; Tubs
    • D06F37/264Tubs provided with reinforcing structures, e.g. ribs, inserts, braces
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06FLAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F37/00Details specific to washing machines covered by groups D06F21/00 - D06F25/00
    • D06F37/26Casings; Tubs
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06FLAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F37/00Details specific to washing machines covered by groups D06F21/00 - D06F25/00
    • D06F37/26Casings; Tubs
    • D06F37/267Tubs specially adapted for mounting thereto components or devices not provided for in preceding subgroups
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06FLAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F39/00Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00 
    • D06F39/02Devices for adding soap or other washing agents

Definitions

  • the present invention is based on a washing machine with a detergent dispenser and a detergent supply line leading to the tub, which has a free connection to the surrounding atmosphere, and an additional ventilation line connected to the tub.
  • the care products required for a wash cycle are deposited in an insert or a drawer in the dispenser before the program begins.
  • the winding device is regularly arranged in the upper area of the washing machine.
  • To hold different types and / or quantities of laundry care products there are several compartments that are automatically controlled and rinsed out during the individual washing program phases by means of fresh water that is fed to the washing machine in a valve-controlled manner from an external supply network.
  • the water / care agent mixture flows into the tub through a induction hose.
  • the laundry is fed into and removed from the washing machine via the loading opening in the appliance housing, which can be closed watertight by a door.
  • the door size is adapted to the laundry drum.
  • the tub with the drum and the induction bowl as well as their connections and hose connections are a tightly sealed system when the loading door is closed. Ventilation of the system is regularly provided for trouble-free and low-noise operation of the washing machine. Such aeration means that a pressure equalization can take place during the filling of the tub with water or wash liquor and during spinning. This is particularly necessary to reduce the noise caused by compression when spinning. In addition, pressure equalization also enables greater accuracy in regulating the liquid level in the tub.
  • the loading opening adapted to the drum is so wide that children can enter the appliance unsupervised.
  • the ventilation systems described above are often not sufficient to ventilate the tub when the washing machine is stopped and the door closed so that children who have climbed in can be prevented from suffocation.
  • washing machines of this size are equipped with additional emergency ventilation.
  • Emergency ventilation in washing machines from well-known manufacturers is implemented by means of a hose which is connected to the tub in a low area and is led upwards from there.
  • the opening of the hose which has a free connection to the atmosphere, lies above the tub or at least in the area of the upper limit of the tub.
  • Such an emergency ventilation is easy to implement, its installation does not pose any fundamental problems.
  • the efficiency of such a ventilation hose depends on its inner diameter. Adequate ventilation requires the hose to be wide. This results in the disadvantage that, without additional countermeasures, the operating noises penetrate outward through the hose in an almost undamped manner and thus significantly increase the noise level.
  • Another disadvantage is that water vapor and foam can escape to the outside via the ventilation hose.
  • the invention has for its object to provide an improved ventilation system that performs the function of supplying sufficient fresh air to the tub, in an effective manner and thereby prevents the escape of water vapor and foam to the outside and largely prevents the noise from the inside of the device to the outside suppressed so that the noise level does not increase noticeably when the washing machine is in operation.
  • the object is achieved by the features mentioned in the characterizing part of patent claim 1. Further advantageous embodiments of the invention are contained in the subclaims.
  • the additional ventilation line is connected to an opening provided as far up as possible on the tub and to a nozzle arranged as far up as possible on the detergent dispenser.
  • the detergent supply line is led from the detergent dispensing device to an inlet nozzle in the upper region of the tub, which is as far away from the ventilation nozzle that no water reservoir can form in the line. Both lines have a connection to the atmosphere via the detergent dispenser.
  • the detergent dispenser has a lower part and a cover resting on the lower part, and on the other hand the cover and / or its support surface for the lower part of the dispenser device with respect to a part adjoining the cover on the side and / or the lower part with air-permeable spacing spaces.
  • its cover has raised webs on its underside, which are aligned parallel to the spacing spaces, for splash-proof sealing of the detergent dispensing device.
  • the two lines, the detergent supply line and the ventilation line can best be arranged far apart from one another in that the detergent supply line is connected to an inlet socket arranged on the base of the tub and that the base of the tub has a chimney-like shape in the area of the inlet port.
  • a major advantage of the ventilation system according to the invention is that fresh air can be supplied by circulation.
  • a chimney-like extension of the base of the tub in the area of the inlet connector is provided in an embodiment of the invention.
  • the chimney-like extension can advantageously be part of a shape that stabilizes the tub.
  • Fig. 2 shows a detergent dispenser in a sectional front view
  • Fig. 3 is a rear view of a tub designed according to the invention.
  • FIG. 1 a washing machine 1 is shown from the side in section. As in FIGS. 2 and 3, only the components that are important for the functioning of the ventilation system according to the invention were included in this illustration.
  • the tub 2 and the laundry drum 5 rotatable therein about a horizontal axis have a front loading opening which is accessible from the outside via the door 4 in the housing of the washing machine 1.
  • An elastic sleeve seals the tub 2 against the housing 1, with the door 4 the tub 2 can be closed to the outside in a water-tight manner.
  • the detergent dispenser 6, a plastic component, is arranged directly under the cover plate of the washing machine 1 and is accessible via an opening in the cover 19, which is designed here as an operating panel, for filling with laundry care products. Program-controlled, the laundry care products are rinsed out by means of fresh water which is supplied from an external water supply system via the connection 18.
  • the bottom of the detergent dispenser 6 has a slope and opens into the outlet nozzle 11 for the detergent supply line 8. This is to the inlet nozzle 7 arranged at the rear upper area of the tub container 2 so that the formation of a water bag is excluded in any case and thus Passage opening can not be narrowed.
  • the inlet connector 7 on the tub 2 is laterally offset over a bead 17 formed in the tub bottom 3.
  • the ventilation nozzle 9 for the additional ventilation hose 10 is attached at the highest point on the front jacket edge of the tub 2.
  • the corresponding nozzle 12 is also integrally formed on the detergent dispenser 6 at a point as high as possible.
  • the hoses 8 and 10 guided from the suds container 2 to the detergent dispenser 6 are designed to be vibration-elastic in order to avoid the transmission of vibrations from the spring-loaded detergent container 2 to the detergent dispenser 6 permanently installed in the housing of the washing machine 1.
  • the connecting pieces 7 and 9 on the tub 2 are as far apart as possible on the edges of the tub shell 2.
  • the ventilation of the tub 2 in the lower area can be done by this arrangement in the shortest possible way through the vertical spaces formed by the tub 2 and the drum 5.
  • the air supply is additionally conveyed by the chimney-like formation of beads 17, which are formed in a star shape as stabilization in the base 3 of the tub anyway (see FIG. 3).
  • the atmospheric connection of the ventilation system takes place via air-permeable spacing spaces 14 in the detergent dispenser 6 between the edges of the cover 13 and those of the cover 19 (see FIG. 2).
  • the spacing spaces 14 surrounding the cover are oriented obliquely so that water penetrating into these spaces can run off more easily.
  • the spacing spaces 14 are formed in that the cover 13 of the detergent flushing device 6, which is flush with the cover 19 and is pivotably articulated thereon, rests only at two points at the front corners, so that the edge is no longer tightly sealed all around the lower housing part 16 or the cover 19 rests.
  • slot-like spacing spaces 14 are formed on all four sides of the cover 13, via which the ventilation system has free access to the atmosphere.
  • webs 15 are formed on the underside of the cover and are aligned parallel to the spacing spaces 14.
  • the large condensation areas in the detergent supply line 8 and the detergent dispenser 6 and the special design of the spacing spaces 14 in the detergent dispenser 6 prevent foam and water vapor from escaping when the washing machine 1 is in operation. also has the effect that the noise level during operation of the washing machine 1 is kept within narrow limits.
  • the invention is simple to implement. In particular, no additional components are required; the special arrangements and configurations of the elements which are used and which are essentially known can be implemented using methods customary in the industry.
  • the chimney-like extension 17 of the tub base 3 proposed in accordance with the invention in the area of the inlet nozzle 7 can also be implemented without additional effort, as shown in the example, by an existing shape with shape-stabilizing beads 17.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Detail Structures Of Washing Machines And Dryers (AREA)
  • Main Body Construction Of Washing Machines And Laundry Dryers (AREA)

Abstract

The invention relates to a washing machine (1) in which the supplementary ventilation line (10) is connected to an opening as high as possible on the washing tub (2) and running to a nozzle (12), arranged as high as possible on the detergent flushing device (6), by means of an additional ventilation system which provides a ventilation to prevent an accident with a stopped machine and a closed door (4). The detergent introduction line (8) runs from the detergent flushing device (6) to an inlet nozzle (7), placed as far as possible from the ventilation nozzle (9) in the upper region of the washing tub (2), such that no reservoirs of water can form in the line (8). Both lines (8, 10) are connected to the atmosphere by means of the flushing device. According to the invention, the ventilation system provides an adequate supply of fresh air. Noise on operation of the washing machine (1) is adequately damped and the foam and water vapour outlet can be as good as excluded.

Description

WASCHMASCHINE MIT BELUFTUNGSSYSTEM WASHING MACHINE WITH VENTILATION SYSTEM
Die vorliegende Erfindung geht aus von einer Waschmaschine mit einer Waschmitteleinspül- einrichtung und einer zum Laugenbehälter führenden Waschmittelzuführungsleitung, die zur umgebenden Atmosphäre freie Verbindung hat, sowie einer zusätzlichen am Laugenbehälter angeschlossenen Belüftungsleitung.The present invention is based on a washing machine with a detergent dispenser and a detergent supply line leading to the tub, which has a free connection to the surrounding atmosphere, and an additional ventilation line connected to the tub.
Die für einen Waschgang erforderlichen Pflegemittel werden vor Programmbeginn in einem Einsatz oder einer Schublade der Einspulvorrichtung deponiert. Die Einspulvorrichtung ist regelmäßig im oberen Bereich der Waschmaschine angeordnet. Zur Aufnahme von unterschiedlichen Arten und/oder Mengen von Wäschepflegemitteln sind mehrere Fächer vorhanden, die automatisch gesteuert während der einzelnen Waschprogrammphasen mittels Frischwasser ausgespült werden, das aus einem externen Versorgungsnetz ventilgesteuert der Waschmaschine zugeleitet wird. Über einen Einspülschlauch fließt das Wasser-Pflegemittel-Gemisch in den Laugenbehälter. Die Eingabe und Entnahme der Wäsche in die bzw. aus der Waschmaschine erfolgt über die im Gerätegehäuse vorhandene Beschickungsöffnung, die durch eine Tür wasserdicht verschließbar ist. Die Türgröße ist der Wäschetrommel angepasst.The care products required for a wash cycle are deposited in an insert or a drawer in the dispenser before the program begins. The winding device is regularly arranged in the upper area of the washing machine. To hold different types and / or quantities of laundry care products, there are several compartments that are automatically controlled and rinsed out during the individual washing program phases by means of fresh water that is fed to the washing machine in a valve-controlled manner from an external supply network. The water / care agent mixture flows into the tub through a induction hose. The laundry is fed into and removed from the washing machine via the loading opening in the appliance housing, which can be closed watertight by a door. The door size is adapted to the laundry drum.
Der Laugenbehälter mit der Trommel und der Einspülschale sowie deren Anschlüsse und Schlauchverbindungen sind bei geschlossener Beschickungstür ein nach außen dicht abgeschlossenes System. Für einen störungsfreien und geräuscharmen Betrieb der Waschmaschine ist regelmäßig eine Belüftung des Systems vorgesehen. Eine solche Belüftung bewirkt, dass ein Druckausgleich während des Befüllens des Laugenbehälters mit Wasser bzw. Waschlauge und beim Schleudern stattfinden kann. Dies ist insbesondere notwendig zur Reduzierung der Geräusche, die durch Kompressionen beim Schleudern entstehen. Darüber hinaus ermöglicht der Druckausgleich auch eine höhere Genauigkeit bei der Regulierung des Flüssigkeitsniveaus im Laugenbehälter.The tub with the drum and the induction bowl as well as their connections and hose connections are a tightly sealed system when the loading door is closed. Ventilation of the system is regularly provided for trouble-free and low-noise operation of the washing machine. Such aeration means that a pressure equalization can take place during the filling of the tub with water or wash liquor and during spinning. This is particularly necessary to reduce the noise caused by compression when spinning. In addition, pressure equalization also enables greater accuracy in regulating the liquid level in the tub.
Bei bekannten Waschmaschinen erfolgt die Belüftung über den Laugenbehälter oder die Einspülschale. Nach einer in der DE 44 31 075 A1 beschriebenen Lösung sind für den Druckausgleich im oberen Bereich des Laugenbehälters vom Inneren ausgehend Öffnungen nach außen führend vorgesehen. Um während des Programmdurchlaufs den Austritt von Dampf oder Schaum zu unterbinden, sind zusätzlich Kondensationseinrichtungen vorgesehen. Als Beispiel einer Belüftung über die Einspülschale wird die DE 196 19 602 A1 angeführt. Darin wird vorgeschlagen, das Gehäuse der Einspülschale durch einen Trenneinsatz in einen Einspülbereich für das Wasser-Pflegemittel-Gemisch und in einen Be- und Entlüftungsbereich für den Laugenbehälter aufzuteilen. In Wirkverbindung mit im Einspülschalen- gehäuse angeformten und senkrecht verlaufenden Leitstegen wird dabei sichergestellt, dass für die Belüftung des Laugenbehälters immer ein freier Querschnitt vorhanden ist.In known washing machines, ventilation takes place via the tub or the induction bowl. According to a solution described in DE 44 31 075 A1, openings are provided leading outwards from the inside for pressure equalization in the upper region of the tub. To prevent the exit of To prevent steam or foam, additional condensation devices are provided. DE 196 19 602 A1 is given as an example of ventilation via the induction bowl. It proposes dividing the housing of the induction bowl into a flushing area for the water / cleaning agent mixture and a ventilation area for the tub by a separating insert. In active connection with vertically extending guide webs formed in the induction bowl housing, it is ensured that there is always a free cross-section for the ventilation of the tub.
Bei Waschmaschinen mit einem sehr großen Fassungsvermögen ist die der Trommel ange- passte Beschickungsöffnung so weit, dass Kinder unbeaufsichtigt in das Gerät einsteigen können. Die oben beschriebenen Belüftungssysteme sind oft nicht ausreichend, bei Stillstand der Waschmaschine und geschlossener Tür den Laugenbehälter so zu belüften, dass eingestiegene Kinder vor dem Ersticken bewahrt werden können.In washing machines with a very large capacity, the loading opening adapted to the drum is so wide that children can enter the appliance unsupervised. The ventilation systems described above are often not sufficient to ventilate the tub when the washing machine is stopped and the door closed so that children who have climbed in can be prevented from suffocation.
Aus diesem Grunde sind derartig große Waschmaschinen mit einer zusätzlichen Notbelüftung ausgerüstet. Realisiert wird die Notbelüftung bei Waschmaschinen bekannter Hersteller durch einen Schlauch, der in einem weit unten liegenden Bereich an den Laugenbehälter angeschlossen ist und von dort nach oben geführt wird. Die Öffnung des Schlauches, die freie Verbindung zur Atmosphäre hat, liegt oberhalb des Laugenbehälters oder zumindest im Bereich der oberen Begrenzung des Laugenbehälters. Eine solche Notbelüftung ist einfach zu realisieren, ihre Installation bereitet keine prinzipiellen Probleme. Der Wirkungsgrad eines derartigen Belüftungsschlauches ist abhängig von dessen innerem Durchmesser. Eine ausreichende Belüftung erfordert eine große lichte Weite des Schlauches. Daraus ergibt sich der Nachteil, dass ohne zusätzliche Gegenmaßnahmen die Betriebsgeräusche nahezu ungedämpft über den Schlauch nach außen dringen und damit den Lärmpegel deutlich wahrnehmbar erhöhen. Nachteilig ist auch, dass über den Belüftungsschlauch Wasserdampf und Schaum nach außen austreten können.For this reason, washing machines of this size are equipped with additional emergency ventilation. Emergency ventilation in washing machines from well-known manufacturers is implemented by means of a hose which is connected to the tub in a low area and is led upwards from there. The opening of the hose, which has a free connection to the atmosphere, lies above the tub or at least in the area of the upper limit of the tub. Such an emergency ventilation is easy to implement, its installation does not pose any fundamental problems. The efficiency of such a ventilation hose depends on its inner diameter. Adequate ventilation requires the hose to be wide. This results in the disadvantage that, without additional countermeasures, the operating noises penetrate outward through the hose in an almost undamped manner and thus significantly increase the noise level. Another disadvantage is that water vapor and foam can escape to the outside via the ventilation hose.
Der Erfindung liegt die Aufgabe zugrunde, ein verbessertes Belüftungssystem anzugeben, dass die Funktion, ausreichend Frischluft in den Laugenbehälter zu leiten, auf effektive Weise erfüllt und dabei den Austritt von Wasserdampf und Schaum nach außen verhindert und die vom Inneren des Gerätes nach außen dringenden Geräusche weitestgehend unterdrückt, so dass der Geräuschpegel beim Betrieb der Waschmaschine nicht merklich ansteigt. Erfindungsgemäß wird die Aufgabe durch die im kennzeichnenden Teil des Patentanspruchs 1 genannten Merkmale gelöst. Weitere vorteilhafte Ausgestaltungen der Erfindung sind in den Unteransprüchen enthalten.The invention has for its object to provide an improved ventilation system that performs the function of supplying sufficient fresh air to the tub, in an effective manner and thereby prevents the escape of water vapor and foam to the outside and largely prevents the noise from the inside of the device to the outside suppressed so that the noise level does not increase noticeably when the washing machine is in operation. According to the invention the object is achieved by the features mentioned in the characterizing part of patent claim 1. Further advantageous embodiments of the invention are contained in the subclaims.
Nach Maßgabe der Erfindung ist die zusätzliche Belüftungsleitung an einer möglichst weit oben am Laugenbehälter vorgesehenen Öffnung angeschlossen und zu einem möglichst weit oben an der Waschmitteleinspulvorrichtung angeordneten Stutzen geführt. Die Waschmittelzuführungsleitung ist von der Waschmitteleinspulvorrichtung zu einem möglichst weit vom Belüftungsstutzen entfernten Einlaufstutzen im oberen Bereich des Laugenbehälters so geführt, dass sich in der Leitung kein Wasserreservoir bilden kann. Beide Leitungen haben über die Waschmitteleinspüleinrichtung Verbindung zur Atmosphäre.According to the invention, the additional ventilation line is connected to an opening provided as far up as possible on the tub and to a nozzle arranged as far up as possible on the detergent dispenser. The detergent supply line is led from the detergent dispensing device to an inlet nozzle in the upper region of the tub, which is as far away from the ventilation nozzle that no water reservoir can form in the line. Both lines have a connection to the atmosphere via the detergent dispenser.
In Ausgestaltung der Erfindung weist dazu einerseits die Waschmitteleinspüleinrichtung ein Unterteil und einen auf dem Unterteil aufliegenden Deckel und andererseits der Deckel und/oder dessen Auflagefläche zum Unterteil der Einspulvorrichtung in bezug zu einem seitlich an den Deckel angrenzenden Teil und/oder zum Unterteil luftdurchlässige Abstandsräume auf.In an embodiment of the invention, on the one hand, the detergent dispenser has a lower part and a cover resting on the lower part, and on the other hand the cover and / or its support surface for the lower part of the dispenser device with respect to a part adjoining the cover on the side and / or the lower part with air-permeable spacing spaces.
Zur spritzschutzsicheren Abdichtung der Waschmitteleinspüleinrichtung weist ihr Deckel gemäß einer vorteilhaften Fortbildung der Erfindung auf seiner Unterseite erhabene Stege auf, die parallel zu den Abstandsräumen ausgerichtet sind.According to an advantageous development of the invention, its cover has raised webs on its underside, which are aligned parallel to the spacing spaces, for splash-proof sealing of the detergent dispensing device.
Die beiden Leitungen, die Waschmittelzuführungsleitung und die Belüftungsleitung, können am besten dadurch weit voneinander entfernt angeordnet sein, dass die Waschmittelzuführungsleitung mit einem am Laugenbehälterboden angeordneten Einlaufstutzen verbunden ist und dass der Laugenbehälterboden im Bereich des Einlaufstutzens eine kaminartige Ausformung aufweist.The two lines, the detergent supply line and the ventilation line, can best be arranged far apart from one another in that the detergent supply line is connected to an inlet socket arranged on the base of the tub and that the base of the tub has a chimney-like shape in the area of the inlet port.
Als ein wesentlicher Vorteil ergibt sich aus dem erfindungsgemäßen Belüftungssystem, dass die Zufuhr von Frischluft durch Zirkulation erfolgen kann. Zur weiteren Verbesserung der Belüftung ist in Ausgestaltung der Erfindung eine kaminartige Erweiterung des Laugenbehälterbodens im Bereich des Einlaufstutzens vorgesehen. Die kaminartige Erweiterung kann vorteilhafterweise Bestandteil einer den Laugenbehälter stabilisierenden Formgebung sein.A major advantage of the ventilation system according to the invention is that fresh air can be supplied by circulation. To further improve the ventilation, a chimney-like extension of the base of the tub in the area of the inlet connector is provided in an embodiment of the invention. The chimney-like extension can advantageously be part of a shape that stabilizes the tub.
Durch die nach Maßgabe der Erfindung ausgestaltete Belüftung des Laugenbehälters wer- den die Geräusche beim Betrieb der Waschmaschine ausreichend gedämpft. Schaum- und Wasserdampfaustritt sind wegen der großen Kondensationsflächen im Einlaufschlauch und der Einspülschale sowie der speziellen konstruktiven Auslegung der Öffnungsschlitze in der Einspülschale nahezu ausgeschlossen.Due to the ventilation of the tub, which is designed in accordance with the invention, the noise is muffled sufficiently when operating the washing machine. Foam and water vapor discharge are almost impossible due to the large condensation areas in the inlet hose and the induction bowl as well as the special design of the opening slots in the induction bowl.
Die Erfindung wird nachstehend an einem Ausführungsbeispiel näher erläutert. Die zugehörigen Zeichnungen zeigenThe invention is explained in more detail below using an exemplary embodiment. The associated drawings show
Fig. 1 eine Waschmaschine in einer geschnitten dargestellten Seitenansicht,1 is a washing machine in a sectional side view,
Fig. 2 eine Waschmitteleinspüleinrichtung in einer geschnitten dargestellten Frontansicht undFig. 2 shows a detergent dispenser in a sectional front view and
Fig. 3 eine Rückansicht auf einen erfindungsgemäß ausgebildeten Laugenbehälter.Fig. 3 is a rear view of a tub designed according to the invention.
In Figur 1 ist eine Waschmaschine 1 von der Seite im Schnitt dargestellt. In diese Darstellung wurden, wie auch in den Figuren 2 und 3, nur die Bauteile aufgenommen, die für die Funktion des erfindungsgemäßen Belüftungssystems von Bedeutung sind. Der Laugenbehälter 2 und die darin um eine waagerechte Achse drehbare Wäschetrommel 5 weisen eine frontale Beschickungsöffnung auf, die über die Tür 4 im Gehäuse der Waschmaschine 1 von außen zugänglich ist. Eine elastische Manschette dichtet den Laugenbehälter 2 gegen das Gehäuse 1 ab, mit der Tür 4 ist der Laugenbehälter 2 nach außen wasserfest verschließbar.In Figure 1, a washing machine 1 is shown from the side in section. As in FIGS. 2 and 3, only the components that are important for the functioning of the ventilation system according to the invention were included in this illustration. The tub 2 and the laundry drum 5 rotatable therein about a horizontal axis have a front loading opening which is accessible from the outside via the door 4 in the housing of the washing machine 1. An elastic sleeve seals the tub 2 against the housing 1, with the door 4 the tub 2 can be closed to the outside in a water-tight manner.
Die Waschmitteleinspüleinrichtung 6, ein Kunststoffbauteil, ist unmittelbar unter der Abdeck- platte der Waschmaschine 1 angeordnet und über eine Öffnung in der Abdeckung 19, die hier als Bedienblende ausgebildet ist, zum Befüllen mit Wäschepflegemitteln zugänglich. Programmgesteuert werden die Wäschepflegemittel mittels Frischwasser ausgespült, das von einem externen Wasserversorgungssystem über den Anschluss 18 zugeführt wird.The detergent dispenser 6, a plastic component, is arranged directly under the cover plate of the washing machine 1 and is accessible via an opening in the cover 19, which is designed here as an operating panel, for filling with laundry care products. Program-controlled, the laundry care products are rinsed out by means of fresh water which is supplied from an external water supply system via the connection 18.
Der Boden der Waschmitteleinspüleinrichtung 6 weist ein Gefälle auf und mündet in dem Auslaufstutzen 11 für die Waschmittelzuführungsleitung 8. Diese ist zu dem am hinteren oberen Bereich des Laugenbehältermantels 2 angeordneten Einlaufstutzen 7 so verlegt, dass die Bildung eines Wassersacks in jedem Fall ausgeschlossen ist und somit die Durchlassöffnung nicht eingeengt werden kann. Der Einlaufstutzen 7 am Laugenbehälter 2 ist seitlich versetzt über einer im Laugenbehälterboden 3 angeformten Sicke 17 angesetzt. Der Belüftungsstutzen 9 für den zusätzlichen Belüftungsschlauch 10 ist an der höchstgelegenen Stelle am vorderen Mantelrand des Laugenbehälters 2 angebracht. Das entsprechende Stutzen 12 ist an der Waschmitteleinspüleinrichtung 6 ebenfalls an einer möglichst hoch gelegenen Stelle angeformt.The bottom of the detergent dispenser 6 has a slope and opens into the outlet nozzle 11 for the detergent supply line 8. This is to the inlet nozzle 7 arranged at the rear upper area of the tub container 2 so that the formation of a water bag is excluded in any case and thus Passage opening can not be narrowed. The inlet connector 7 on the tub 2 is laterally offset over a bead 17 formed in the tub bottom 3. The ventilation nozzle 9 for the additional ventilation hose 10 is attached at the highest point on the front jacket edge of the tub 2. The corresponding nozzle 12 is also integrally formed on the detergent dispenser 6 at a point as high as possible.
Die vom Laugenbehälter 2 zur Waschmitteleinspüleinrichtung 6 geführten Schläuche 8 und 10 sind schwingungselastisch ausgebildet, um die Übertragung von Schwingungen vom federnd aufgehängten Laugenbehälter 2 auf die fest im Gehäuse der Waschmaschine 1 installierte Waschmitteleinspüleinrichtung 6 zu vermeiden. Die Anschlussstutzen 7 und 9 am Laugenbehälter 2 liegen möglichst weit auseinander an den Rändern des Laugenbehältermantels 2. Die Belüftung des Laugenbehälters 2 im unteren Bereich kann durch diese Anordnung auf kürzestem Wege über die von dem Laugenbehälter 2 und der Trommel 5 gebildeten senkrechten Zwischenräume erfolgen. Die Luftzuführung wird zusätzlich befördert durch die kaminartige Ausbildung von Sicken 17, die ohnehin als Stabilisation im Laugenbehälterboden 3 sternförmig eingeformt sind (s. Figur 3).The hoses 8 and 10 guided from the suds container 2 to the detergent dispenser 6 are designed to be vibration-elastic in order to avoid the transmission of vibrations from the spring-loaded detergent container 2 to the detergent dispenser 6 permanently installed in the housing of the washing machine 1. The connecting pieces 7 and 9 on the tub 2 are as far apart as possible on the edges of the tub shell 2. The ventilation of the tub 2 in the lower area can be done by this arrangement in the shortest possible way through the vertical spaces formed by the tub 2 and the drum 5. The air supply is additionally conveyed by the chimney-like formation of beads 17, which are formed in a star shape as stabilization in the base 3 of the tub anyway (see FIG. 3).
Die atmosphärische Verbindung des Belüftungssystems erfolgt über luftdurchlässige Abstandsräume 14 in der Waschmitteleinspüleinrichtung 6 zwischen den Kanten des Deckels 13 und denen der Abdeckung 19 (s. Figur 2). Im Ausführungsbeispiel sind die den Deckel umgebenden Abstandsräume 14 schräg orientiert, damit in diese Räume eindringendes Wasser leichter ablaufen kann. Die Abstandsräume 14 werden dadurch gebildet, dass der Deckel 13 der Waschmitteleinspüleinrichtung 6, der in die Abdeckung 19 flächenbündig ein- gepasst und an dieser drehbar angelenkt ist, an den frontseitigen Ecken nur an zwei Punkten aufliegt, so dass der Rand nicht mehr umlaufend dicht auf dem Gehäuseunterteil 16 bzw. der Abdeckung 19 aufliegt. Durch diese Maßnahme werden an allen vier Seiten des Deckels 13 schlitzartige Abstandsräume 14 gebildet, über die das Belüftungssystem freien Zugang zur Atmosphäre hat. Um zu verhindern, dass beim Wassereinlauf Spritzwasser austreten kann, sind auf der Unterseite des Deckels 13 Stege 15 angeformt, die parallel zu den Abstandsräumen 14 ausgerichtet sind.The atmospheric connection of the ventilation system takes place via air-permeable spacing spaces 14 in the detergent dispenser 6 between the edges of the cover 13 and those of the cover 19 (see FIG. 2). In the exemplary embodiment, the spacing spaces 14 surrounding the cover are oriented obliquely so that water penetrating into these spaces can run off more easily. The spacing spaces 14 are formed in that the cover 13 of the detergent flushing device 6, which is flush with the cover 19 and is pivotably articulated thereon, rests only at two points at the front corners, so that the edge is no longer tightly sealed all around the lower housing part 16 or the cover 19 rests. As a result of this measure, slot-like spacing spaces 14 are formed on all four sides of the cover 13, via which the ventilation system has free access to the atmosphere. In order to prevent splash water from escaping when the water flows in, webs 15 are formed on the underside of the cover and are aligned parallel to the spacing spaces 14.
Die großen Kondensationsflächen in der Waschmittelzuführungsleitung 8 und der Waschmitteleinspüleinrichtung 6 sowie die spezielle konstruktive Auslegung der Abstandsräume 14 in der Waschmitteleinspüleinrichtung 6 verhindern das Austreten von Schaum und Wasserdampf beim Betrieb der Waschmaschine 1. Das erfindungsgemäße Belüftungssystem be- wirkt auch, dass der Lärmpegel beim Betrieb der Waschmaschine 1 sich in engen Grenzen hält.The large condensation areas in the detergent supply line 8 and the detergent dispenser 6 and the special design of the spacing spaces 14 in the detergent dispenser 6 prevent foam and water vapor from escaping when the washing machine 1 is in operation. also has the effect that the noise level during operation of the washing machine 1 is kept within narrow limits.
Wie aus dem beschriebenen Ausführungsbeispiel erkennbar, ist die Erfindung einfach umzusetzen. Es werden insbesondere keine zusätzlichen Bauteile benötigt, die speziellen Anordnungen und Ausformungen der eingesetzten und im Wesentlichen bekannten Elemente sind mit branchenüblichen Verfahren realisierbar. Die nach Maßgabe der Erfindung vorgeschlagene kaminartige Erweiterung 17 des Laugenbehälterbodens 3 im Bereich des Einlaufstutzens 7 ist wie im Beispiel gezeigt durch eine ohnehin vorhandene Ausformung mit formstabilisierenden Sicken 17 ebenfalls ohne zusätzlichen Aufwand umsetzbar. As can be seen from the exemplary embodiment described, the invention is simple to implement. In particular, no additional components are required; the special arrangements and configurations of the elements which are used and which are essentially known can be implemented using methods customary in the industry. The chimney-like extension 17 of the tub base 3 proposed in accordance with the invention in the area of the inlet nozzle 7 can also be implemented without additional effort, as shown in the example, by an existing shape with shape-stabilizing beads 17.

Claims

Patentanspüche Patentanspüche
1. Waschmaschine mit einer Waschmitteleinspüleinrichtung (6) und einer zum Laugenbehälter (2) führenden Waschmittelzuführungsleitung (8), die zur umgebenden Atmosphäre freie Verbindung hat, sowie einer zusätzlichen am Laugenbehälter angeschlossenen Belüftungsleitung (10), dadurch gekennzeichnet, dass von einer möglichst weit oben am Laugenbehälter (2) vorgesehenen Öffnung (9) zu einem möglichst weit oben an der Waschmitteleinspüleinrichtung (6) angeordneten Stutzen (9) die zusätzliche Belüftungsleitung (10) geführt ist und dass die Waschmittelzuführungsleitung (8) von der Waschmitteleinspüleinrichtung (6) zu einem möglichst weit von der Öffnung des Belüftungsstutzens (9) entfernten, oberen Bereich des Laugenbehälters (2) ohne eine Formung, in der sich ein Wasserreservoir bilden kann, geführt ist.1. washing machine with a detergent dispenser (6) and a detergent supply line (8) leading to the tub (2), which has a free connection to the surrounding atmosphere, as well as an additional ventilation line (10) connected to the tub, characterized in that one of the highest possible on the tub (2) provided opening (9) to a nozzle (9) arranged as far up on the detergent dispenser (6), the additional ventilation line (10) is guided and that the detergent supply line (8) from the detergent dispenser (6) to one as possible far from the opening of the ventilation nozzle (9), the upper area of the tub (2) without a shape in which a water reservoir can form, is guided.
2. Waschmaschine nach Anspruch 1, dadurch gekennzeichnet, dass die Waschmitteleinspüleinrichtung (6) ein Unterteil (16) und einen auf dem Unterteil aufliegenden Deckel (13) aufweist und dass der Deckel (13) und/oder dessen Auflagefläche zum Unterteil (16) der Einspulvorrichtung (6) in bezug zu einem seitlich an den Deckel (13) angrenzenden Teil (19) und/oder zum Unterteil (16) luftdurchlässige Abstandsräume (14) aufweist.2. Washing machine according to claim 1, characterized in that the detergent dispenser (6) has a lower part (16) and a cover (13) resting on the lower part and that the cover (13) and / or its support surface for the lower part (16) Dispenser (6) has air-permeable spacing spaces (14) in relation to a part (19) laterally adjoining the cover (13) and / or to the lower part (16).
3. Waschmaschine nach Anspruch 2, dadurch gekennzeichnet, dass der Deckel (13) der Waschmitteleinspüleinrichtung (6) auf seiner Unterseite erhabene Stege (15) aufweist, die parallel zu den Abstandsräumen (14) ausgerichtet sind.3. Washing machine according to claim 2, characterized in that the cover (13) of the detergent dispenser (6) has raised webs (15) on its underside, which are aligned parallel to the spacing spaces (14).
4. Waschmaschine nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass die Waschmittelzuführungsleitung (8) mit einem am Laugenbehälterboden (3) angeordneten Einlaufstutzen (7) verbunden ist und dass der Laugenbehälterboden (3) im Bereich des Einlaufstutzens (7) eine kaminartige Ausformung (17) aufweist.4. Washing machine according to one of claims 1 to 3, characterized in that the detergent supply line (8) is connected to an inlet nozzle (7) arranged on the base of the tub (3) and that the base of the tub (3) in the region of the inlet (7) is a chimney-like Forming (17).
5. Waschmaschine nach Anspruch 4, dadurch gekennzeichnet, dass die kaminartige Ausformung (17) im Laugenbehälterboden (3) Bestandteil einer dessen Stabilität erhöhenden Formgebung ist. 5. Washing machine according to claim 4, characterized in that the chimney-like shape (17) in the base of the tub (3) is part of a shape which increases its stability.
EP03753530A 2003-08-27 2003-10-08 Washing machine with a ventilation system Withdrawn EP1660711A1 (en)

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DE10339504A DE10339504A1 (en) 2003-08-27 2003-08-27 Washing machine
PCT/EP2003/011136 WO2005031058A1 (en) 2003-08-27 2003-10-08 Washing machine with a ventilation system

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US20070017257A1 (en) 2007-01-25
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AU2003271706A1 (en) 2005-04-14
DE10339504A1 (en) 2005-04-07

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