EP2794981B1 - Household appliance for the care of laundry items with a dispensing tray and a suds container - Google Patents

Description

The invention relates to a household appliance for the care of items of laundry, with a dispensing tray and a layer container, which is connected to the dispenser via an inlet strand, wherein in the feed line a vapor barrier device is formed in a curved line section.

From the DE 10 2006 029 953 A1 is a washing machine with a controllable fresh water inlet for at least two detergent chambers known. In a top portion of the housing of the washing machine Waschmitteleinspüleinrichtung is arranged. From an uneven bottom of the housing of this Waschmitteleinspüleinrichtung down detergent feed lines open to the inlet to a cuff on the one hand and to the inlet to a tub on the other.

Through this Waschmitteleinspüleinrichtung a ventilation of the tub without additional ventilation line is given, and due to the two separate detergent supply lines and their connection to the uneven bottom of the housing of the detergent supply device is guaranteed always one of these two lines unoccupied.

In addition, from the DE 10 2009 029 523 A1 a water-conducting household appliance with a water supply device known. In a feed line to a cuff or a tub of the domestic appliance, a first bent pipe section and a second bent pipe section, which are connected to each other, arranged. Spaced to the two inside openings of this connected entire pipe section, a siphon is formed in the interior, which is formed by a siphon channel. When a water supply device is flushed with fresh water, then the fresh water flows through both the flow channel, which is formed adjacent to the Saugheberkanal, as well as through the Saugheberkanal itself. If the fresh water supply is interrupted, then on the siphon channel water from the Suction section sucked until the water level reaches the original level. The original level is below an overflow level, from which water flows through the flow channel into the treatment area of the domestic appliance. In addition, the original level is below an entrance of the original section. During a washing or drying operation, the water supply device filled with water in the master section to the original level forms a vapor barrier. As a result, a steam outlet from the tub during this process can be prevented. That is, under a vapor barrier in the context of the invention is a substantially U-shaped pipe system, wherein the mutually communicating pipe strands of the pipe system can be filled with a liquid medium to a level that no gaseous media flow is made possible. The vapor barrier is effective when the pipe system is filled to this level. The pipe system may also have a deviating from the U-shape, provided that the mutually communicating pipe strands of the pipe system can provide the same effect such a vapor barrier.

It is an object of the present invention to provide a household appliance for the care of laundry, in which a compact construction of a liquid flushing on the one hand and a ventilation on the other hand is achieved.

This object is achieved by a household appliance according to claim 1.

An inventive household appliance for the care of items of laundry comprises a dispenser tray and a tub, which is connected to the dispenser tray via at least one inlet strand. In particular, liquid medium, in particular detergent and water, are fed to the sleeve or to the tub via the feed line. In the feed train, a vapor barrier device or a vapor barrier is formed in a curved line section. In the line section, a ventilation channel is formed, which opens at a first end of the line section. At the first end of this ventilation duct is separated from one of the vapor barrier device associated feed channel for supplying liquid medium from the dispenser tray to the tub. Thus, a line section is formed in which both the ventilation channel and the feed channel open at a first end and also these two channels at this first end are formed separated from each other. In this line section two different channels are thus integrated in extremely compact and space-minimizing design, which are also designed separated from each other. As a result, a line section is also generated with a connection at this first end, which has two channels. The connection of two separate lines is no longer required, but it is virtually only on this first end a connection performed. Thus, a line section is provided which has an integrated multi-path system, for which purpose a water inlet system and an air duct system are realized in one component. For this purpose, separate air and water ways are realized at the front end. As a result, a vapor barrier is formed in the water inlet, which prevents the steam or condensate outlet from a tub. In addition, a functional ventilation in the area of the cold water inflow of the induction bowl is achieved by the warm process air. This causes a temperature compensation and prevents water condensation. Effective prevention of vapor escape from the inflator formed by the tub and drum is achieved.

It is preferably provided that the first end of the line section is a level end viewed in terms of level. As a result, the conceptual realization of the vapor barrier on the one hand and the ventilation on the other hand can be achieved particularly secure and a particularly simple connection to the dispenser shell is guaranteed.

It is preferably provided that the ventilation channel is formed in regions circumferentially around the feed channel at the first end. By no complete circulation is formed, a particularly mechanically stable configuration is realized and a particularly suitable positioning of the ventilation duct and the feed channel is achieved. In particular, the venting can then be designed positionally quite specific to this first end and done specifically targeted and dense at the transition to an induction dish and a vent there.

Preferably, it is provided that the ventilation duct opens into the supply channel at a point of confluence, wherein the point of confluence, viewed in terms of level, lies above a liquid level in the feed channel in which the vapor barrier is formed. This junction is thus formed at the end remote from the first end of the line section of this ventilation channel and thus at an in the line section inwardly offset position.

Preferably, it is provided that the feed channel has a flexible channel section after the mouth of the ventilation channel, in particular this flexible channel section is designed as a corrugated pipe. By such a configuration, an otherwise, in particular rigidly formed line section or intake line experience a certain reversible deformability to experience no damage in a moving system during operation of the household appliance.

It is preferably provided that the inlet strand is formed as a one-piece component in the form of the line section itself, in particular formed as a molded part.

This filling hose or this line section accomplishes the connection from the filling arrangement with the dispensing tray and the detergent dosing to the tub. This line section also has the task to transport the process water in the tub. Due to the dynamic movements of the washing unit or of the oscillating system, the movement compensation of this line section takes place, in particular, by means of a flexible fold region or the already mentioned flexible channel section.

Due to the very specific configuration of the line section, this simultaneously transports the heated process air to a condensation area in the flushing arrangement. The special feature is that the air duct is integrated into the line section, but is transported via a separate channel from the waterway. A transport over the waterway back is excluded by the default Wasservorlageeinrichtung. The required passage cross section for the air duct is achieved in particular by an eccentric arrangement of a nozzle in the nozzle. As a result, in addition to a particularly space-minimized, and a simple connection principle gestaltendes, also allows a mechanically stable and robust concept.

The sealing of the inner and outer connecting pieces is advantageously achieved by specific sealing elements or sealing ribs. The hose connection can be additionally secured by suitable hose clamps on the outer nozzle.

Fig. 1

eine schematische Darstellung eines Ausführungsbeispiels eines erfindungsgemäßen Haushaltsgeräts;

Fig. 2

eine perspektivische Darstellung eines Zulaufstrangs eines Haushaltsgeräts gemäß Fig. 1;

Fig. 3

eine Schnittdarstellung durch die Ausgestaltung gemäß Fig. 2;

Fig. 4

eine perspektivische Draufsicht auf die Ausgestaltung gemäß Fig. 2 und Fig. 3,

Fig. 5

eine perspektivische Darstellung eines Ausführungsbeispiels einer Einspülanordnung mit einer Einspülschale;

Fig. 6

eine Horizontalschnittdarstellung durch die Ausgestaltung gemäß Fig. 5;

Fig. 7

eine Vertikalschnittdarstellung durch die Ausgestaltung gemäß Fig. 5; und

Fig. 8

eine weitere Darstellung der Ausführung in Fig. 7.

An embodiment of the invention will be explained in more detail with reference to schematic drawings. Show it.

Fig. 1

a schematic representation of an embodiment of a household appliance according to the invention;

Fig. 2

a perspective view of a supply line of a household appliance according to Fig. 1 ;

Fig. 3

a sectional view through the embodiment according to Fig. 2 ;

Fig. 4

a perspective top view of the embodiment according to Fig. 2 and Fig. 3 .

Fig. 5

a perspective view of an embodiment of a Einspülanordnung with a dispenser tray;

Fig. 6

a horizontal sectional view through the embodiment according to Fig. 5 ;

Fig. 7

a vertical sectional view through the embodiment according to Fig. 5 ; and

Fig. 8

another illustration of the execution in Fig. 7 ,

In the figures, identical or functionally identical elements are provided with the same reference numerals.

In Fig. 1 is shown as a water-conducting household appliance 1, which is designed for the care of laundry, a washing machine. However, the household appliance 1 can also be a washer-dryer.

The household appliance 1 has a tub 2, in which a drum 3 is arranged for receiving the items of laundry and is rotatable about a perpendicular axis of rotation to the plane of the figure.

In addition, the household appliance 1 comprises a first inflow line 4a, via which fresh water into the drum 3 can be guided. Furthermore, a connection 5 is formed, which can be connected to a domestic installation or the like. From the port 5, a fresh water line 6 leads into the interior of the household appliance 1. In the fresh water line 6, a check valve 7 is arranged, which is controlled for example by a controller according to a program sequence. The fresh water line 6 leads over a free air gap in a dispenser 8a Einspülanordnung 8. In the dispenser 8a, for example, a laundry treatment agent, in particular a detergent may be provided, which is flushed with the fresh water through a line 9a of the intake line 4a.

The household appliance 1 has a flexible sleeve 10, which is connected to the tub 2.

As from the illustration in Fig. 1 A pipe section of the intake line 4a opens at this feed point 11a to the suds container 2. Thus, via the inlet line 4a fresh water and optionally a mixture of fresh water and a Laundry treatment are also performed in the drum 3.

The household appliance 1 also has a pumping line 12 which comprises a closure flap 13, a drain pump 14 and a line 15. When the closure flap 13 is open, liquor provided in the tub 2 can be pumped via the line 15 to an outlet 16 by actuating the drain pump 14. The output 16 can in this case be connected to a suitable outflow of a domestic installation or the like.

In the inlet string 4a, a vapor barrier device 17a is formed. This is formed in a curved line section 18a of the intake line 4a. The vapor barrier device 17a is formed by a water supply device.

Like the illustration in Fig. 1 Furthermore, the intake line 4a at the feed point 11a opens to the tub 2, wherein on the other hand at the junction 20a, the dispenser 8a of the dispensing 8 opens.

In addition, a second inlet strand 4b is provided in the exemplary embodiment, which likewise has a line section 18b in which a curved upper section is formed. Again, a vapor barrier device 17b is configured. A connection between the dispensing tray 8a and the additional feed line 4b is formed via the line 9b via a further opening 20b into the dispenser tray 8a. On the other hand, the further feed line 4b opens at a feed point 11b to the sleeve 10, which is located between the tub 2 and the drum 3.

In the exemplary embodiment, it is provided that the intake line 4b without a specific ventilation duct, as it is provided in the intake line 4a, is formed.

The line section 18a will be explained in more detail with reference to the following figures.

In Fig. 2 For this purpose, a perspective view of the inlet section 4a with the line section 18a is shown. The line section 18a has a first upper end 19, which is connected to a connecting piece 20 of the dispensing tray 8a. At this first end 19 opens a feed channel 21 and separated from it a ventilation duct 22 at this first end 19, these two channels 21 and 22 for connection with continuations to opening and beyond also designed separated from each other.

The line section 18a, which represents the inlet section 4a in the exemplary embodiment, is a one-piece injection-molded part. It is predominantly rigid and has only in a central portion of a flexible channel portion 23 which is formed as a corrugated tube.

In Fig. 3 is a partially sketched as a sectional view view of the line section 18a according to Fig. 2 shown. As from the illustration in Fig. 2 to 4 can be seen, at this first end 19 of the ventilation channel 22 is not completely formed circumferentially around the feed channel 21, but in this respect only partially circulating designed. The ventilation channel 22 is separated from the feed channel 21 by a boundary wall 24.

As from the illustration in Fig. 3 can be seen, the first end 19 in terms of altitude is a level considered upper end.

The ventilation channel 22 opens with its upper end 19 facing away from the lower end 25 in the curved feed channel 21.

A respective confluence point 26 is formed level higher level than a liquid level 27 in the feed channel 21. By forming a boundary wall 24 and the liquid level 27, which extends over the lower end of the boundary wall 24, the vapor barrier is formed. This fluid level 27 lies level under the junction point 26. A problem-free removal of the process air 28, which is represented by the corresponding arrow, can thus take place via the inlet section 4a and the ventilation channel 22 into the dispenser 8a. On the other hand, the liquid medium 29 in the form of the fresh water and an optionally added detergent according to the arrow display shown by the dispenser 8a on the pipe section designed as a curved pipe section 18a to the feed point 11 a promoted.

As well as in Fig. 3 can be seen, the flexible channel section 23 is formed in the supply channel 21 and thus arranged after the junction 26 of the ventilation channel 22. As well as out Fig. 3 can be seen, the confluence point 26 is considered level arranged above a kink portion 32 of the feed channel 21, said kink portion 32 is arranged following the bend of the feed channel 21, in which bend the vapor barrier is formed. Even if a corresponding over spilling of the liquid takes place via this bend region 32 or the liquid level 27 would rise to this bend 32, the problem-free aeration process is still possible via the ventilation channel 22. This ventilation channel 22 then opens, as already mentioned, in a ventilation channel not shown in detail in the dispenser 8a, where the venting channel is then guided so that it contacts with a boundary wall, which limits the volume range in which the liquid medium is contained. As a result, the process air is guided along a condensation area for as long as possible and then forward again from the latter, in order in particular to be able to exit from the dispensing tray 8a at the front.

In Fig. 4 is in a perspective plan view of the upper first end 19 can be seen. The discharge relationship or opening region of the ventilation duct 22, which is designed as a ring section in this representation, can be seen.

In Fig. 5 is an embodiment of the Einspülanordnung 8 with the dispenser 8a shown in a perspective view.

The dispensing tray 8a comprises an upper part 8b and a lower part 8c, which are produced as separate parts, for example as one-piece injection-molded parts, and can be connected to one another, for example can be latched.

In the dispenser 8a, a water supply device 8d is formed with a water receiving trough in the lower part 8c. The water receiving trough is in the present embodiment as shown in FIG Fig. 7 , which shows a sectional view in the xz-plane, a siphon.

On the lower part 8c, an outlet connection 8e is formed, to which the line section 18a can be connected via the line 9a.

At a further outlet connection 8f, which is integrated at the lower part 8c, the line section 18b can then be connected via the line 9b.

As from the illustration in Fig. 5 Furthermore, a venting channel 8g is formed in the outlet connection 8e and in a further continuation, the illustration here being shown partially broken away, so that it is possible to see into the interior of the channel 8g. In the connected state of the line section 18a to the outlet connection 8e, the air is then guided via the ventilation channel 22 in accordance with the arrow direction 30 shown in the ventilation channel 8g in the dispensing bowl 8a. This is guided by a front end of the dispensing tray 8a, on which the outlet nozzle 8e is formed, over the entire depth (y-direction) to the rear, and from there again blown forward and over a front opening 8h from the dispenser 8a.

In the illustration according to Fig. 6 It can be seen that the very narrow vent channel 8g is bounded inwardly by a boundary wall 8i. This wall 8i is also at the same time the boundary wall of a water receiving space 8j in the lower part 8c. The water therein, which optionally also has a detergent, is then passed through the feed channel 21 to the tub 2.

Due to the specifically designed and arranged vent channel 8g, the air is passed as long as possible in the area of the liquid receiving water receiving space 8j, so that a corresponding condensation can take place.

The design of the dispenser tray 8a is also provided so that in the lower part 8c, a sub-channel 8k is formed, which forms with a further sub-channel in the upper part 8b the closed entire vent channel 8g.

In addition, it is provided that the upper part 8b has a guide wall, not shown, through which in the assembled state of the upper part 8b with the lower part 8c, an interior of the dispenser 8a is divided into two Einspülkanäle 8l and 8m. A first dispensing channel 8m is formed with the water supply device as a vapor barrier. A second dispensing channel 8 l is formed with a water supply device as a connection to the tub 3.

In the already mentioned illustration in Fig. 7 the design of the water supply device 8d designed as a siphon 8n and broken away is shown. This is integrated in the lower part 8c.

For easier manufacture of the lower part 8c as a one-piece injection-molded part is initially provided that only the water well is formed. In order to produce the siphon, a dividing wall 31 is then produced and provided as a one-piece, separate component, which can then be inserted into the lower part 8c in the region of the water trough, in particular can be positioned there in a latching manner. In Fig. 7 that's already it positioned final state of this partition wall 31 is shown, which then results in the siphon-like configuration of the water well of the water supply device 8d and according to the arrows shown in FIG Fig. 7 the flow path of the liquid medium is shown.

In Fig. 8 to a side view is shown, in which the partition wall 31 is removed. With such an embodiment of the dispenser 8a is also a very specific water supply system for the flushing formed, which reliably prevents the escape of steam from the tub 3 during the washing and drying cycle. This is done via the water reservoir in the integrated siphon 8n in the dispenser 8a.

Runs water from the dispenser 8a to the cuff between the tub 2 and the drum 3, the said water supply system is completely flooded. Water flows through the channel.

An inventive Einspülanordnung for a household appliance for the care of laundry comprises a dispenser shell having an upper part and a lower part connectable thereto, wherein in the lower part of a water supply device is formed with a water receiving trough, and an outlet nozzle is formed on the lower part, which opens into the water receiving trough , The lower part has an opening to the outlet connection part of a channel integrated in the dispenser drainage channel. By such a design of the dispenser shell, a highly integrated system of a vapor barrier on the one hand and a corresponding ventilation on the other hand can be achieved.

It is preferably provided that the sub-channel is bounded by a wall, which is also a boundary wall of a water receiving space of the dispenser tray. The compact design is favored. In particular, however, this achieves a particularly noteworthy variant with regard to the condensation of the gaseous medium conducted via the venting channel.

It is preferably provided that the sub-channel is formed substantially over the entire length of a water receiving space of the dispenser tray in the lower part. In particular, it is provided that the sub-channel is closed by a second sub-channel in the upper part, when the lower part is connected to the upper part.

In particular, it is provided that the venting channel is guided from a front end of the lower part, on which the outlet nozzle is arranged, to a rear end of the lower part and up into the upper part and from there back to the front end to an outlet opening out. As a result, a particularly long path is achieved in the dispensing tray for the gas flow, which is led along in particular over a particularly long path to the water receiving space. The desired condensation is thereby particularly favored.

Preferably, it is provided that a separate partition to the lower part is formed, which is attachable to the lower part, and in the arranged state of the partition, a siphon between the outlet nozzle and the water receiving trough is formed.

Preferably, it is provided that the upper part has a guide wall through which the interior of the dispenser shell is divided into two dispensing channels in the assembled state of the upper part with the lower part.

In particular, it is provided that a first flushing channel is formed with the water supply device as a vapor barrier.

Preferably, a second Einspülkanal with the water supply device is designed as a connection to a tub of the household appliance.

Furthermore, the invention also relates to a household appliance for the care of laundry items, in particular a washing machine or a washer-dryer, which has an inventive Einspülanordnung or an advantageous embodiment thereof.

An inventive Einspülanordnung for a household appliance for the care of laundry comprises a dispenser shell, which has an upper part and a lower part connectable thereto, wherein in the lower part of a water supply device with a water receiving trough is formed, and an outlet nozzle is formed on the lower part, which opens into the water receiving trough. It is formed a separate partition to the lower part, which is attachable to the lower part, and in the arranged state of the partition, a siphon between the outlet nozzle and the water receiving trough is formed. By such a configuration, the one-piece production of the lower part is simplified and cheaper. Especially when manufactured as an injection molded part, the design and shape of a siphon is extremely difficult and error-prone. By virtually the partition is made and provided independently and as a separate component and only later arranged as a non-destructive detachable component and removable again, these problems are eliminated in the production, on the other hand still achieved the desired design of a siphon.

It is particularly advantageous if the dividing wall is attachable to the lower part in a latching manner. As a result, a very fast and secure position mounting is possible, in which case the partition can be easily removed again.

LIST OF REFERENCE NUMBERS

1

household appliance

2

tub

3

drum

4a

inlet strand

4b

inlet strand

5

connection

6

Fresh water pipe

7

check valve

8th

Einspülanordnung

8a

dispenser tray

8b

top

8c

lower part

8d

Water supply facility

8e

outlet connection

8f

outlet connection

8g

vent channel

8h

opening

8i

boundary wall

8j

Water receiving chamber

8k

subchannel

8l

Einspülkanal

8m

Einspülkanal

8n

siphon

9a

management

9b

management

10

cuff

11a

feed point

11b

feed point

12

Abpumpstrang

13

flap

14

Drain pump

15

management

16

output

17a

Vapor barrier device

17b

Vapor barrier device

18a

line section

18b

line section

19

first upper end

20a

junction

20b

junction

21

feed

22

ventilation duct

23

channel section

24

boundary wall

25

lower end

26

junction point

27

liquid level

28

process air

29

medium

30

arrow

31

partition wall

32

bend region

Claims (7)

1. Household appliance (1) for the care of laundry items, with a dispensing tray (8a) and a suds container (2), which is connected to the dispensing tray (8a) via at least one supply duct (4a, 4b), wherein a vapour barrier device (17a, 17b) is formed in a curved line section (18a, 18b) in the supply duct (4a, 4b), characterised in that a ventilating channel (22) is formed in the line section (18a, 18b) and opens into a first end (19) of the line section (18a, 18b) and is separated at the first end (19) from a supply channel (21) associated with the vapour barrier device (17a, 17b) for supplying liquid medium from the dispensing tray (8a) to the suds container (2).
2. Household appliance (1) according to claim 1, characterised in that, considered with respect to levels, the first end (19) is an upper end.
3. Household appliance (1) according to claim 1 or 2, characterised in that the ventilating channel (22) is formed so that it encircles the supply channel (21) at the first end (19) in some regions.
4. Household appliance (1) according to one of the preceding claims, characterised in that a lower end (25) of the ventilating channel (22) opens into the supply channel (21) at an opening point (26), wherein, considered with respect to levels, the opening point (26) lies above a liquid level (27) forming the vapour barrier in the supply channel (21).
5. Household appliance (1) according to one of the preceding claims, characterised in that, after the opening of the ventilating channel (22), the supply channel (21) comprises a flexible channel section (23) in particular formed as a corrugated tube.
6. Household appliance (1) according to one of the preceding claims, characterised in that the supply duct (4a, 4b) is formed as a one-piece line section (18a, 18b), in particular as an injection-moulded part.
7. The household appliance (1) according to one of the preceding claims, characterised in that it is a washing machine or a washer drier.

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