EP2478141B1 - Water-bearing household appliance having a water reservoir device - Google Patents

Description

The invention relates to a water-conducting domestic appliance, in particular laundry treatment appliance for washing and drying laundry, with a treatment area having at least one feed point for supplying water to the treatment area, and a water supply device which is at least indirectly connected to the inflow point of the treatment area and through which Water flows to the treatment area.

Such a household appliance emerges from each of the documents DE 35 25 365 A1 . DE 10 2005 018 550 B3 and EP 1 197 592 A2 ,

Specifically, the invention relates to the field of laundry dryers in which the function of washing and drying are integrated in one device.

In a washer-dryer, during a washing process, fresh water, which optionally carries laundry treatment agent, can be led via a feed line into a suds container. There is the problem that during a washing or drying cycle steam can escape via the intake line.

It is conceivable that in the inlet strand a bent pipe section is integrated, which absorbs a certain amount of water, whereby a vapor barrier is formed. However, such a vapor barrier has the disadvantage that spills over by vibrations or the like water, whereby water enters the treatment area during the drying process.

The object of the invention is to provide a water-conducting domestic appliance, which has an improved structure. Specifically, it is an object of the invention to provide a water-conducting household appliance, in which an advantageous vapor barrier is realized. A further object of the invention is to provide a water-conducting household appliance, in which a reliable vapor barrier is provided for the treatment area, wherein an undesirable entry of water from the vapor barrier is prevented in the treatment area.

The object is achieved by a water-conducting domestic appliance, in particular laundry treatment appliance for washing and drying laundry, with a treatment area having at least one feed point for supplying water to the treatment area, and a water supply device which is at least indirectly connected to the inflow point of the treatment area and by which the water flows to the treatment area; In this case, the water supply device has a siphon, which siphon is arranged to lower a level of water remaining in the water supply device after interrupting the supply of water.

The measures listed in the dependent claims and the following description, preferred and advantageous developments of the water-conducting household appliance according to the invention are possible.

It is advantageous that the siphon is formed by a siphon channel. Furthermore, it is advantageous that the water supply device has at least one curved pipe section and that the siphon channel is integrated into the bent pipe section of the water supply device. During the feeding of water into the treatment area, the bent pipe section is flushed through by the supplied water together with the siphon channel. When the supply of water is interrupted, the siphon lowers a water level in the water supply device. This allows you to set the level of the water template. In this way, on the one hand, a sufficient amount of water in the water supply device remain to form a reliable vapor barrier for a washing and / or drying cycle. On the other hand, an undesirable outflow of water from the water supply device is prevented. This ensures a constant water level of the water reservoir in the water supply device, so that the function of the vapor barrier is maintained even when vibrations or the like occur. In addition, it is prevented that, for example, when opening the door of the water-bearing household appliance or the like water exits due to the pressure equalization of the water supply device and enters the treatment area. As a result, wetting of laundry or the like as well as a water trough which may possibly be perceived by the user can be prevented. Furthermore, even during operation, in particular during a drying process, leakage of water from the water supply device into the treatment area can be prevented.

It is advantageous that the water supply device has a master section and an upper arc section, which is arranged above the master section, and that a suction side of the suction lifter opens into the master section under an overflow level of the curved section. Further, it is advantageous that the template portion is formed by a bent pipe piece and / or that the upper arc portion is formed by a bent pipe section. As a result, during the flushing in of water into the treatment area, an advantageous guidance of the water flow, which optionally entrains laundry treatment means or the like, is ensured. The Water supply device may be one or more parts, in particular two parts, configured. Specifically, it is advantageous that the template portion of a soft material, in particular a soft plastic, is formed and / or that the upper arc portion of a hard material, in particular a hard plastic, is formed. Specifically, when the siphon is integrated as a siphon channel or the like in the upper arc portion, then the design of the upper arc portion with the siphon channel of the hard material ensures reliable operation of the water supply device. Due to the design of the template section of the soft material, a certain balance against vibration or the like and a simpler installation can be ensured.

It is also advantageous that an inlet level of an inlet of the master section is arranged higher than the suction side of the siphon. As a result, the master portion of the water supply means completely absorbs the stored amount of water, and the water level of the water supply does not protrude beyond a junction or the like at the entrance of the original portion. As a result, the occurrence of shocks or the like over the life of the occurrence of an undesirable leak is prevented from the outset. In addition, this is the amount of stored water regardless of the connection conditions.

Advantageously, the treatment area is surrounded by a container, wherein a container connected to the flexible sleeve is provided, wherein the feed point of the treatment area is provided on the flexible sleeve and wherein the water supply device directly or by means of a piece of pipe at the inlet point with the flexible sleeve connected is. As a result, the transmission of vibrations or the like from the drum to the water supply device can be further damped. In addition, the assembly is simplified.

It is also advantageous that the water supply device is arranged in a supply line, via the fresh water in the treatment area can be guided. Depending on the program sequence, the fresh water can also flush one or more treatment agents into the treatment area. The water supply device However, it may also be located elsewhere in the water-bearing household appliance to form a reliable vapor barrier.

Fig. 1

ein wasserführendes Hausgerät in einer auszugsweisen, schematischen Schnittdarstellung entsprechend einem Ausführungsbeispiel.

Preferred embodiments of the invention are explained in more detail in the following description with reference to the accompanying drawings. It shows:

Fig. 1

a water-conducting household appliance in a partial, schematic sectional view according to an embodiment.

Fig. 1 shows a water-conducting household appliance 1 in a partial, schematic sectional view according to an embodiment. The water-bearing domestic appliance 1 can in particular be configured as a laundry treatment appliance and serve for washing and / or drying laundry. Specifically, the water-bearing domestic appliance 1 can be configured as a washer-dryer. The water-bearing domestic appliance 1 is suitable in accordance with adapted modification, however, also for other applications.

The water-bearing domestic appliance 1 has a container 2 designed as a tub, which surrounds a treatment area 3. The treatment area 3 serves, for example, for receiving laundry which can first be washed and then dried. In this case, an interruption may be provided between the washing and the drying to remove a portion of the laundry before drying.

In addition, the water-bearing domestic appliance 1 on a supply line 4, via the fresh water in the treatment area 3 is feasible. The intake line 4 has a connection 5 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 water-conducting domestic appliance 1. In the fresh water line 6, a check valve 7 is arranged, which is driven, for example, by a controller according to a program sequence. The fresh water line 6 leads via a free air gap in a dispensing bowl 8. In the dispenser 8, for example, a laundry treatment agent, in particular a detergent may be provided, which is rinsed with the fresh water through a line 9.

The water-bearing domestic appliance 1 also has a water supply device 10, which is arranged in the intake line 4. In this embodiment, the water supply device 10 is connected on the one hand to the line 9. Here, the line 9 is connected to an input 11 of the water supply device 10. On the other hand, the water supply device 10 is connected via a pipe section 12 with the treatment area 3. Here, the pipe section 12 is connected to an outlet 13 of the water supply device 10.

The water-bearing domestic appliance 1 has a flexible sleeve 15 which is connected to the container 2. In this embodiment, the pipe section 12 is connected to the flexible sleeve 15. In this case, a feed point 16 is provided on the sleeve 15, which serves as a feed point 16 for the treatment area 3. The pipe section 12 opens at the feed point 16 in the treatment area. 3

Thus, fresh water and possibly a mixture of fresh water and a laundry treatment agent can be fed into the treatment area 3 via the intake line 4.

The water-bearing domestic appliance 1 also has a pumping line 17 which comprises a closure flap 18, a drain pump 19 and a line 20. When the closure flap 18 is open, the liquor provided in the container 2 can be pumped via the line 20 to an outlet 21 by actuating the drain pump 19. The output 21 can in this case be connected to a suitable outflow of a domestic installation or the like.

The water supply device 10 has a master section 22 and an upper arch section 23. The upper arcuate portion 23 is connected at a junction 24 to the master portion 22 with the upper arcuate portion 23 disposed at the junction 24 above the master portion 22. The master section 22 is formed by a bent pipe section 25. In addition, the upper arc portion 23 is formed by a bent pipe section 26. Here, the bent pipe section 25 is formed of a soft material. The bent pipe piece 26 is formed of a hard material. The curved formed from the hard material Pipe piece 26 has a siphon 27. In this embodiment, the siphon 27 is formed by a siphon channel 28, which is configured next to a passage channel 29 in the bent pipe section 26 of the upper arc portion 23. The siphon 27 has a suction side 30 and an outlet 31. In this case, the outlet 31 of the siphon 27 is arranged below the suction side 30. Through the suction side 30 of the siphon 27 a template level 32 is specified.

When the water supply device 10 is flushed with fresh water, then the fresh water flows through both the flow channel 29 and the siphon channel 28 of the bent pipe section 26. When the fresh water supply is interrupted, then water is sucked from the master section 22 via the siphon channel 28 until the Water level reaches the template level 32. The original level 32 is below an overflow level 33, from which water flows through the flow channel 29 into the treatment area 3. In addition, the original level 32 is below the entrance 11 of the original section 22.

During a washing or drying operation, the water supply device 10 filled with water in the master section 22 to the original level 32 forms a vapor barrier. If, due to vibration or the like, the water in the master section 22 is set in motion, then a sloshing of water is reliably prevented because the master level 32 is significantly lower than the overflow level 33. Thus, the functionality of the vapor barrier remains guaranteed. In addition, it is prevented that water flows through the pipe section 12 in the treatment area 3 due to such movements. In addition, there may be some movement of the water in the master section 22 when opening the container 2 due to the pressure equalization. Even with these movements, a flow of water into the treatment area 3 is prevented.

Thus, the water remaining in the water supply device 10 after flushing up to the original level 32 reliably remains in the master section 22. Depending on the design of the water supply device 10, the outlet 13 can also be connected directly to the feed point 16 of the treatment area 3. Specifically, the outlet 13 may be connected to the cuff 15 at the feed point 16.

Thus, the water-bearing domestic appliance 1 may have a process-safe cuff flushing through the inlet string 4, which prevents vapor leakage from the tub 2 during the washing and drying process, a thermal washer or the like and at the same time spilling excess water from the water supply device 10 when opening a door, which is connected to the container 2, avoids. In this case, an at least approximately hermetic closure of the treatment area 3 can be achieved. The water supply device 10 takes over the closure on the side of the intake line 4. The water supply device 10 can receive a relatively large volume of water to form a vapor barrier. By the siphon 27, the amount of water and the template level 32 of the amount of water is specified. In particular, unwanted wetting of a dried laundry can be reliably avoided.

The water supply device 10 may also be configured in one piece. However, a multi-part, in particular two-part, embodiment is advantageous, wherein advantageously a combination of a soft material and a hard material can be used. Here, the two parts, namely the master section 22 and the upper arc section 23, are connected to each other at the connection point 24 by nesting. For example, the bent pipe section 25 may be formed of a soft material, in particular rubber or EPDM.

The siphon channel 28 preferably has a relatively small diameter. The forwarding of fresh water and possibly in the fresh water entrained treatment agents can be carried out substantially via the passage channel 29. This allows a sufficient flow rate can be achieved. Thus, the occurrence of leakage water in the area of the feed point 16 of the flexible sleeve 15, in particular when opening the door complex, can be avoided. In addition, a Nachbefeuchtung the laundry when opening the window complex is prevented because a process-safe water mask is ensured by the water level control by means of the siphon 27. Here, a space-saving installation space and a compact design can be realized. Thus, an advantageous and reliable vapor barrier for the tub or other container 2 is given.

LIST OF REFERENCE NUMBERS

1

Water-conducting household appliance

2

container

3

treatment area

4

inlet strand

5

connection

6

Fresh water pipe

7

check valve

8th

dispenser tray

9

management

10

Water feeding device

11

entrance

12

pipe section

13

output

15

cuff

16

feed point

17

Abpumpstrang

18

flap

19

Drain pump

20

management

21

output

22

presentation section

23

upper arch section

24

junction

25, 26

bent piece of pipe

27

Saugheber

28

Saugheberkanal

29

Pass Channel

30

suction

31

outlet

32

template level

33

Overflow level

Claims (9)

1. Water-conducting domestic appliance (1), particularly laundry treatment appliance for washing and drying laundry, with a treatment region (3), which has at least one feed point (16) for the feed of water to the treatment region (3), and a water storage device (10), which is connected at least indirectly with the feed point (16) of the treatment region (3) and through which the water flows to the treatment region (3), characterised in that the water storage device (10) comprises a siphon (27), which siphon (27) is arranged for lowering a level of water remaining in the water storage device (10) after interruption of the feed of water.
2. Water-conducting domestic appliance according to claim 1, characterised in that the siphon (27) is formed by a siphon channel (28).
3. Water-conducting domestic appliance according to claim 2, characterised in that the siphon channel (28) is integrated in a bent pipe length (26) of the water storage device (10).
4. Water-conducting domestic appliance according to any one of claims 1 to 3, characterised in that the water storage device (10) comprises a storage section (22) and an upper bend section (23), which is arranged above the storage section (22), and that a suction side (30) of the siphon (27) opens into the storage section below an overflow level of the upper bend section (23).
5. Water-conducting domestic appliance according to claim 4, characterised in that the storage section (22) is formed by a bent pipe length (25) and/or that the upper bend section (23) is formed by a bent pipe length (26).
6. Water-conducting domestic appliance according to claim 4 or 5, characterised in that the storage section (22) is formed from a soft material and/or that the upper bend section (23) is formed from a hard material.
7. Water-conducting domestic appliance according to any one of claims 4 to 6, characterised in that an inflow level of an inlet (11) of the storage section (22) is arranged to be higher than the suction side (30) of the siphon (27).
8. Water-conducting domestic appliance according to any one of claims 1 to 7, characterised in that the treatment region (3) is surrounded at least substantially by a container (2), that a flexible collar (15) connected with the container (2) is provided, that the feed point (16) of the treatment region (3) is provided at the flexible collar (15) and that the water storage device (10) is connected directly or by means of a pipe length (12) with the flexible collar (15) at the feed point (16).
9. Water-conducting domestic appliance according to any one of claims 1 to 8, characterised in that the water storage device (10) is arranged in a feed run (4) by way of which fresh water can be conducted into the treatment region (3).

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