Household appliances for treating waste, including water tanks.

Abstract

This invention relates to a household appliance for processing treated items, comprising a processing chamber for receiving the treated items, a supply device for supplying water from a fresh water inlet to the processing chamber, and a water tank. The supply device has a front chamber, a first supply line connecting the fresh water inlet to the front chamber, and at least one transfer line connecting the front chamber to the processing chamber. An inlet valve assembly including at least one first valve is arranged in the first supply line, and a first air passage connecting the front chamber is arranged between the first valve and the front chamber. The water tank is connected to the fresh water inlet via a second supply line, which has a second valve. Furthermore, a second air passage is arranged in the second supply line between the second valve and the water tank, the second air passage connecting to the front chamber, and the second supply line extends into the water tank below a predetermined water level. The household appliance is particularly configured as a laundry detergent machine for processing laundry items as treated items.

Description

Technical Field

[0001] The present invention relates to a household appliance for processing treated matter, comprising a processing chamber for receiving the treated matter, a supply device for supplying water from a fresh water inlet to the processing chamber, and a water tank, wherein the supply device has a front chamber, a first supply line connecting the fresh water inlet to the front chamber, and at least one transfer line connecting the front chamber to the processing chamber, wherein an inlet valve assembly including at least one first valve is arranged in the first supply line, and a first air passage connecting the front chamber is arranged between the first valve and the front chamber, wherein the water tank is connected to the fresh water inlet via a second supply line having a second valve. Background Technology

[0002] Document EP 2 850 241 B1 discloses a household appliance of the aforementioned type. This appliance is specifically configured as a laundry care machine for handling laundry, particularly a washing machine or washer-dryer, and includes a mist generator. The mist generator comprises a water tank filled with fresh water from a fresh water inlet, in which an ultrasonic generator is arranged. Through this ultrasonic generator, a cold mist is generated in the water tank above the water level. This cold mist is supplied to the processed material, specifically in an alkaline solution container having a rotatable drum, within a processing chamber via a mist channel configured as a loop, by means of an airflow generated by a blower. Furthermore, the mist channel includes a reactive gas generator for generating reactive gases, particularly ozone, which can be supplied to the processed material along with the mist. Finally, the mist channel also includes a reactive gas filter, which removes the reactive gases from the airflow to prevent uncontrolled diffusion.

[0003] Document EP 2 855 754 B1 discloses a household appliance for guiding water, the appliance having a treated gas generator, a flushing assembly, and a mist generator. A mist channel for introducing the treated gas and mist into a treatment chamber containing the treated material is connected to the flushing assembly, which is connected to the treatment chamber via multiple water reservoirs or a siphon structure.

[0004] Document EP 2 858 545 B1 discloses a household appliance for guiding water, comprising an ozone generator, a mist generator, and an ozone filter. The ozone generator and ozone filter are arranged in a mist channel, which forms a substantially closed loop with a treatment chamber. The mist channel also includes a blower for driving an airflow that guides ozone and mist into the treatment chamber. To guide the airflow into the treatment chamber, the blower operates such that the airflow flows in the main direction through the mist channel. To remove the ozone after treatment of the provided material, the blower operates such that the airflow flows against the main direction through the mist channel. In this way, ozone travels from the treatment chamber to the ozone filter in the mist channel, where it is decomposed, in particular, through a reaction with activated carbon.

[0005] Document EP 2 598 682 B1 discloses a household appliance having an ozone generator. An air stream mixed with water vapor is supplied to the ozone generator, and ozone is generated in this air stream by the action of ultraviolet light from a corresponding light source. The ozone-mixed air stream is then supplied to a treatment chamber containing a substance for treatment, so that the substance is treated with ozone.

[0006] Standard DIN EN 61770 / A11:2018 requires that household appliances that direct water to a fresh water inlet in a supply network for human use must not cause any health risk to the water or any alteration in quality, appearance, odor, or taste. Therefore, such appliances must ensure that no water flows back into the fresh water inlet, and that contact between the fresh water introduced into the appliance and any material or agent is permitted only downstream of a corresponding backflow prevention safety device that poses a potential risk of harm to the fresh water for human use. An air circuit can be used as a backflow prevention safety device; this is a device that can be installed in a piping or hose system, in which the flowing liquid flows from one pipe joint to another in a short circuit without fittings. Instructions for designing such air circuits are available from the standard.

[0007] Household appliances are understood herein as devices suitable for and determined to be used in the management of private households to achieve the desired results in terms of materials. Particular attention is paid to household appliances that direct water, in which water plays a role in producing the desired results, wherein the water must, in particular, be drawn from a supply network for human use. Such appliances may, in particular, be dishwashers for rinsing dishes and laundry care machines for caring for, and especially washing, laundry items. Summary of the Invention

[0008] The objective of this invention is to provide a further development of a household appliance of the type defined at the beginning.

[0009] To address this task, a household appliance is proposed according to the present invention, which additionally has features according to an embodiment.

[0010] Preferred configurations of the invention are set forth in the following description and can also be applied in combination with each other, provided that technical considerations permit this, even if this is not explicitly implemented herein.

[0011] To address this task, a household appliance for processing treated matter is proposed according to the present invention, comprising a processing chamber for receiving the treated matter, a supply device for supplying water from a fresh water inlet to the processing chamber, and a water tank, wherein the supply device has a front chamber, a first supply line connecting the fresh water inlet to the front chamber, and at least one transfer line connecting the front chamber to the processing chamber, wherein an inlet valve assembly including at least one first valve is arranged in the first supply line, and a first air passage connecting the front chamber is arranged between the first valve and the front chamber, wherein the water tank is connected to the fresh water inlet via a second supply line having a second valve, and furthermore, in the household appliance, a second air passage connecting the front chamber is arranged in the second supply line between the second valve and the water tank, and the second supply line extends into the water tank below a predetermined water level.

[0012] Therefore, in the household appliance according to the invention, on the one hand, the water tank is connected to a fresh water interface corresponding to an effective provision for supplying fresh water from a corresponding supply network, and on the other hand, the air space above the water level in the water tank prevents connection with other air-guiding areas of the household appliance, particularly the front chamber. This second air passage, a safety device to prevent water backflow from the water tank, is combined with the first air passage in such a way that both air passages are connected to the interior of the front chamber and thus to the interior of the processing chamber, the first air passage being a safety device to prevent backflow from the front chamber. Thus, the second air passage maintains the isolation of the system consisting of the water tank and the processing chamber. The same air pressure is always present in both air passages. Therefore, both air passages respond simultaneously in the event of backflow.

[0013] In principle, this invention can be applied to any type of water-directing household appliance, especially since the cost of applying this invention is quite low. In particular, laundry appliances such as washing machines and washer-dryers, as well as dishwashers for cleaning dishes, are considered.

[0014] In principle, water tanks can be installed in household appliances for any purpose. For example, their function could be to form a counterweight to dampen vibrations during certain operating conditions of the appliance, such as those generated by the spin-drying process in a washing machine via tumbling or centrifugation. Water tanks can also be used to store water for specific processing procedures, such as treating materials with steam or mist, with a corresponding generator producing the steam or mist from the stored water. Finally, water stored in this way can be used to dilute or dissolve specific reagents, such as detergents, rinse aids, and water softeners.

[0015] In a preferred embodiment of the invention, the water level corresponds to a minimum fill level of the water tank predetermined for use. Therefore, within the scope of using the household appliance, the water tank must be filled so high that the actual water level is the same as or higher than the water level corresponding to the minimum fill level. This ensures that the air space within the water tank is sealed in every conceivable operating state of the household appliance.

[0016] In another preferred embodiment of the invention, the water tank is connected to a pump outlet line via a drain pipe and a drain valve, the pump outlet line being connected to a wastewater inlet. Thus, to terminate the use of the household appliance, any water remaining in the water tank can be drained into the wastewater inlet.

[0017] In another preferred embodiment of the invention, the front chamber is covered on the upper side by a cover, and a second air passage is mounted on the cover and has a connection portion through the cover that connects to the front chamber. More preferably, the second air passage is a raised portion of the cover, to which two first pipe fittings are connected, and a second supply line is connected to the first pipe fittings. Here, it is also more preferably that the second air passage, the first pipe fittings, and the cover are integrally formed. In this way, the second air passage is largely integrated into the construction of existing components of the household appliance, thus allowing for simple and cost-effective manufacturing and robust integration into the structure of the household appliance.

[0018] In another preferred embodiment of the invention, the first valve assembly / inlet valve assembly and the second valve are spatially connected to each other, particularly arranged and fixed together in the front chamber. This also allows for simple and cost-effective manufacturing and robust integration into the structure of household appliances.

[0019] In an additional preferred embodiment of the invention, the water tank and the treatment chamber are connected in a loop via a process air passage. More preferably, this loop is substantially self-closing. Even more preferably, the process air passage has a blower by which an airflow flowing in the main direction can be formed in the loop. Furthermore, it is also preferred that the blower is arranged upstream of the water tank about the main direction. In a household appliance of this type, loading of the treatment chamber containing the treated material can be achieved by the blower pushing steam or mist generated by the water present in the water tank into the treatment chamber through the process air passage in the main direction. Alternatively, the blower can be configured such that the airflow in the process air passage flows in the opposite direction to the main direction, and in this way, the mist remaining in the treatment chamber after treatment is completed is returned to the process air passage for removal.

[0020] In a particularly preferred embodiment of the invention, a reactive gas generator for generating reactive gases is arranged downstream of the blower and upstream of the processing chamber in the main direction of the circuit, and a reactive gas filter for eliminating reactive gases is arranged upstream of the blower and downstream of the processing chamber in the main direction of the circuit. Thus, the workpiece can be treated with reactive gases, which are generated in the process air passage with the addition of steam or mist. The arrangement of the reactive gas generator downstream of the water tank allows the reactive gases to be generated in an airflow rich in steam or mist, wherein, if necessary, the reactive gases can be generated by reacting with water in the steam or mist, or by combining the reactive gases (e.g., through diffusion of the reactive gases into the droplets of mist) with the steam or mist. The treatment can also be configured such that a reaction occurs on or in the workpiece, requiring the simultaneous presence of water and reactive gases, wherein the steam or mist ensures the presence of an effective amount of water on or in the workpiece. Finally, it is also advantageous to provide a visual indication using mist that is visible to the user of the household appliance, from which the user can perceive the treatment of the workpiece with reactive gases.

[0021] In another preferred embodiment of the invention, the reaction gas generator is configured to produce ozone as the reaction gas, and the reaction gas filter is an activated carbon filter. Thus, the application of ozone in this invention can be developed independently of or in conjunction with other treatment processes, ozone being a very effective oxidant, capable, for example, of decomposing stubborn dirt and effectively deodorizing and disinfecting treated materials, especially laundry.

[0022] In another preferred embodiment of the invention, the water tank is a fog generator that produces fog, which is then conveyed to the processing chamber via a process air channel. More preferably, the fog generator is configured to produce cold fog. Additionally, preferably, an ultrasonic generator for producing cold fog is arranged in the water tank. Cold fog is the dispersion of extremely fine water droplets in the air and is produced solely by the action of ultrasonic waves generated by the ultrasonic generator on the water in the tank, without significantly increasing the temperature of the water or fog. Therefore, the fog generator does not require a temperature increase relative to the surrounding environment of the household appliance to form fog, which improves the operational safety of the household appliance.

[0023] In another preferred embodiment of the invention, the corresponding household appliance is configured as a laundry care machine for treating laundry as the subject of treatment. More preferably, the household appliance is constructed for washing laundry. Additionally preferably, a rotatable and perforated drum is arranged in the treatment chamber for receiving the laundry. Still more preferably, the front chamber has a flushing assembly, particularly a flushing shell, in which fresh water flowing toward the treatment chamber can be mixed with a treatment agent, particularly a laundry care agent such as detergent and fabric softener. Attached Figure Description

[0024] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

[0025] Figure 1 A schematic front view of a household appliance according to the configuration of the present invention;

[0026] Figure 2 according to Figure 1 A schematic diagram of the second air path in household appliances; and

[0027] Figure 3 according to Figure 1 A schematic diagram of the vertical cross-section of a water tank in a household appliance. Detailed Implementation

[0028] Figure 1 A schematic first embodiment of a household appliance 1 (configured herein as a washing machine) according to the invention is shown for processing a processed item 2 (here, a laundry item). The household appliance 1 includes a processing chamber 3 for receiving the processed item 2, which is configured herein as a vibratingly suspended lye container, in which a rotatable and perforated drum 4 is arranged, which receives the processed item 2 and moves by rotation during washing or other processing, for which a carrying member 5 is also used.

[0029] The supply device 7 is capable of supplying water from a fresh water inlet 6 to the processing chamber 3, which is connected to a network for supplying water (drinking water) determined for human use. The supply device 7 has a front chamber 8 with a cover 9 and a first supply line 10 connecting the fresh water inlet 6 to the front chamber 8. An inlet valve assembly including at least one first valve 11 is arranged in the first supply line 10, and a first air passage 12 connecting the front chamber 8 is arranged between the first valve 11 and the front chamber 8. The front chamber 8 is here a flushing chamber 8, which has a [missing information - likely a device or component] disposed therein. Figure 1 For clarity, the flushing assembly, in which fresh water flowing toward the treatment chamber 3 is mixed with a treatment agent, particularly detergent or fabric softener. The first valve 11 can be considered representative of multiple valves used to sequentially flush in different amounts of treatment agent, which may be located in different chamber sections of the flushing assembly. At least one transfer line 13 connecting the front chamber 8 to the treatment chamber 3 supplies water to the treatment chamber 3. Through multiple transfer lines 13, water mixed with treatment agent can be directed to different parts of the treatment chamber 3, particularly to ensure uniform wetting of the treated material 2, if necessary.

[0030] The pump outlet line 14, together with the alkali pump 15 arranged therein, is used to discharge water, washing alkali or rinsing alkali from the treatment chamber 3 after the treatment is completed and to discharge it through the wastewater interface 16 into the connected wastewater discharge network.

[0031] The household appliance 1 also includes a fog generator 17 for generating fog and supplying it to the processing chamber 3. The fog generator 17 has a water tank 18 and is configured to generate cold fog by placing an ultrasonic generator 19, also configured to generate cold fog, below the water level 20 in the water tank 18. Cold fog is the dispersion of the finest water droplets in the air and is generated solely by the action of ultrasonic waves generated by the ultrasonic generator 19 on the water in the water tank 18, without significantly increasing the temperature of the water or the fog.

[0032] Water tank 18 is connected to fresh water interface 6 via a second supply line 21, which has a second valve 22. A second air passage 23 is arranged in the second supply line 21 between the second valve 22 and water tank 18, and this second air passage is connected to the front chamber 8. Furthermore, the first valve assembly and the second valve 22 are spatially connected to each other, forming a unified valve assembly comprising all the first valves 11 and the second valves 22.

[0033] The water level 20 corresponds to the minimum fill level of the water tank 18 predetermined for use of the water tank 18. Within the scope of use of the household appliance 1, the fill level of the water tank 18 must be so high that the actual water level is the same as or higher than the water level 20 corresponding to the minimum fill level. This ensures that the air space in the water tank 18 is sealed in any conceivable operating state of the household appliance 1.

[0034] A discharge pipe 24 and a discharge valve 25 are provided so that water remaining in the water tank 18 can flow to the pump outlet pipe 14 after treatment.

[0035] The mist generator 17, together with the water tank 18 and the processing chamber 3, are connected in a loop via a process air passage 26, which is essentially self-closing. The process air passage 26 also includes a blower 27, through which an airflow flowing in the main direction 28 can be formed in the loop. The blower 27 is arranged upstream of the mist generator 17 about the main direction 28. This reduces the amount of mist applied to the blower. If necessary, the blower can also be configured to run the airflow in the opposite direction to the main direction 28, so as to draw the mist out of the processing chamber 3 in almost the opposite direction.

[0036] In addition to the fog generator 17, a reaction gas generator 29 for generating reaction gases is arranged downstream of the blower 27 and upstream of the processing chamber 3 in the main direction 28 of the circuit, and a reaction gas filter 30 for eliminating reaction gases is arranged upstream of the blower 27 and downstream of the processing chamber 3 in the main direction 28. The reaction gas generator 29 is configured to generate ozone as a reaction gas, and the reaction gas filter 30 is an activated carbon filter 30, on which ozone is decomposed if necessary. Thus, the processed material 2 can be treated with ozone, which is added to the fog generated in the fog channel 26. The arrangement of the reaction gas generator 29 downstream of the fog generator 17 allows the generation of reaction gases in a fog-rich airflow. Ozone is a very effective oxidant, which, for example, can achieve the decomposition of stubborn dirt independently of or in addition to other treatment processes, such as washing and rinsing, and effectively deodorize and disinfect laundry.

[0037] Figure 2 Showing according to Figure 1 A schematic diagram of the second air passage 23 in household appliance 1. Figure 2 The front chamber 8, which is not visible in the center, is covered on its upper side by a cover 9, and a second air passage 23 is mounted on the cover 9 and has a connecting portion 31 that passes through the cover 9 and connects to the front chamber 8. The second air passage 23 is therefore a raised portion of the cover 9, to which two first pipe fittings 32 are connected, and a second supply line 21 is connected to the first pipe fittings. The second air passage 23, the first pipe fittings 32, and the cover 9 are integrally formed here, particularly by injection molding.

[0038] according to Figure 2 Within the air passage 23, the adjacent ends of the two first pipe fittings 32 are spaced apart by a certain distance, wherein the corresponding distance is determined according to the relevant standard DIN EN 61770 / A11:2018. Corresponding to Figure 1 As illustrated, fresh water flows from left to right through air section 23. Fresh water exits from the left-hand first connector 32 via connection 31 and freely passes through a short air flight path, then enters the right-hand first connector 32 and flows to the water tank 18. If the supply pressure of fresh water at the fresh water inlet 6 changes from positive to negative due to pressure surge, suction is generated in the second supply line 21, but this suction only extends to the second air section 23, where it causes the free-flying jet of water to separate between the ends of the first connector 32. This prevents the return of fresh water from the second supply line 21 behind the second air section 23.

[0039] Figure 3 It shows that according to Figure 1 A schematic diagram of the vertical cross-section of the water tank 18 in a household appliance. A second supply line 21 connects to a second pipe fitting 33, which is located below the water level 20 as specified during operation of the mist generator 17 and extends into the water-filled area of ​​the water tank 18 for operation. This prevents mist- and / or ozone-rich air from reaching the second air path 23 and the front chamber 8 from the process air passage 26, where the unfilled area of ​​the water tank 18 is located. Figure 1 This is part of the process air passage. Therefore, a sealing section is formed, separating the process air passage 26 from the front chamber 8. This sealing section is specifically used to prevent the uncontrolled transfer of ozone from the air space in the process air passage 26 and the water tank 18 into the front chamber 8. Ozone has an unpleasant odor and can corrode mucous membranes at correspondingly high concentrations. This sealing section essentially helps to prevent the uncontrolled leakage of ozone from the household appliance 1.

[0040] In the household appliance 1 according to the invention, on the one hand, the water tank 18 is connected to the fresh water interface 6 according to applicable regulations for supplying fresh water from a corresponding supply network, and on the other hand, the air space above the water level 20 in the water tank 18 is prevented from connecting with other air-guiding areas of the household appliance 1, particularly the front chamber 8. This safety device, in the form of a second air passage 23, preventing backflow of water from the water tank 18, is combined with the first air passage 12 in such a way that both air passages 12 and 23 are connected to the interior of the front chamber 8 and thus to the interior of the processing chamber 3, the first air passage being the safety device preventing backflow from the front chamber 8. Thus, the second air passage 23 maintains the isolation of the system consisting of the water tank 18 and the processing chamber 3. The same air pressure is always present in both air passages 12 and 23. Therefore, both air passages 12 and 23 respond simultaneously in the event of backflow.

[0041] List of reference numerals

[0042] 1. Household appliances, washing machines

[0043] 2. Processing materials and washing materials

[0044] 3. Processing chamber

[0045] 4 rollers

[0046] 5. Carrying parts

[0047] 6. Fresh water inlet

[0048] 7. Supply device

[0049] 8 Anterior chamber

[0050] 9. Cover

[0051] 10 First supply pipeline

[0052] 11 First Valve

[0053] 12 First Air Section

[0054] 13 Transfer pipeline

[0055] 14 Pump outlet pipeline

[0056] 15. Alkali Pump

[0057] 16 Wastewater inlet

[0058] 17 Fog Generator

[0059] 18 Water Tanks

[0060] 19. Ultrasonic generator

[0061] 20 water level

[0062] 21 Second supply pipeline

[0063] 22 Second valve

[0064] 23 Second Air Section

[0065] 24 Discharge Pipeline

[0066] 25 Discharge valve

[0067] 26 Process Air Channel

[0068] 27. Blower

[0069] 28 main direction

[0070] 29. Reaction Gas Generator

[0071] 30 Reaction Gas Filter

[0072] 31 Connecting part

[0073] 32 First pipe joint

[0074] 33 Second pipe fitting.

Claims

1. A household appliance (1) for processing a processed item (2), comprising a processing chamber (3) for receiving the processed item (2), a supply device (7) for supplying water from a fresh water inlet (6) to the processing chamber (3), and a water tank (18), wherein, The supply device (7) has a front chamber (8), a first supply line (10) connecting the fresh water inlet (6) to the front chamber (8), and at least one transfer line (13) connecting the front chamber (8) to the processing chamber (3). An inlet valve assembly including at least one first valve (11) is arranged in the first supply line (10), and a first air passage (12) connecting the front chamber (8) is arranged between the first valve (11) and the front chamber (8). The water tank (18) is connected to the fresh water interface (6) via a second supply pipe (21), the second supply pipe (21) having a second valve (22), characterized in that a second air passage (23) is arranged in the second supply pipe (21) between the second valve (22) and the water tank (18), the second air passage is connected to the front chamber (8), and the second supply pipe (21) is introduced into the water tank (18) below a predetermined water level (20).

2. The household appliance (1) according to claim 1, wherein, The water level (20) corresponds to the minimum filling amount of the water tank (18) pre-given for the use of the water tank (18).

3. The household appliance (1) according to any one of the preceding claims, wherein, The water tank (18) is connected to the pump outlet pipe (14) via the discharge pipe (24) and the discharge valve (25), and the pump outlet pipe is connected to the wastewater interface (16).

4. The household appliance (1) according to claim 1 or 2, wherein, The front chamber (8) is covered on the upper side by a cover (9), and the second air passage (23) is mounted on the cover (9) and has a connection (31) that passes through the cover (9) and connects to the front chamber (8).

5. The household appliance (1) according to claim 4, wherein, The second air passage (23) is the raised portion of the cover (9), and two first pipe joints (32) are connected to the raised portion, and the second supply pipe (21) is connected to the first pipe joints.

6. The household appliance (1) according to claim 5, wherein, The second air section (23), the first pipe joint (32) and the cover (9) are integrally formed.

7. The household appliance (1) according to any one of claims 1, 2, 5, and 6, wherein, The inlet valve assembly and the second valve (22) are spatially connected to each other.

8. The household appliance (1) according to any one of claims 1, 2, 5, and 6, wherein, The water tank (18) and the processing chamber (3) are connected in a loop through the process air channel (26).

9. The household appliance (1) according to claim 8, wherein, The circuit is essentially self-closing.

10. The household appliance (1) according to claim 8, wherein, The process air passage (26) has a blower (27) by which an airflow flowing in the main direction (28) can be constructed in the circuit.

11. The household appliance (1) according to claim 10, wherein, The blower (27) is arranged upstream of the water tank (18) in the main direction (28).

12. The household appliance (1) according to claim 11, wherein, In the circuit, a reaction gas generator (29) for generating reaction gases is arranged downstream of the blower (27) and upstream of the processing chamber (3) with respect to the main direction (28), and a reaction gas filter (30) for eliminating reaction gases is arranged upstream of the blower (27) and downstream of the processing chamber (3) with respect to the main direction (28).

13. The household appliance (1) according to claim 12, wherein, The reaction gas generator (29) is configured to generate ozone as the reaction gas, wherein the reaction gas filter (30) is an activated carbon filter.

14. The household appliance (1) according to claim 8, wherein, The water tank (18) is a fog generator (17), which can generate fog, and the fog can be transported to the processing chamber (3) through the process air channel (26).

15. The household appliance (1) according to claim 14, wherein, The fog generator (17) is configured to generate cold fog.

16. The household appliance (1) according to claim 15, wherein, An ultrasonic generator (19) configured to generate the cold mist is arranged in the water tank (18).

17. The household appliance (1) according to any one of claims 1, 2, 5, 6, 9-16, wherein the household appliance is configured as a laundry care machine for treating laundry as a treatment item (2).

18. The household appliance (1) according to claim 15, wherein the household appliance is configured for washing laundry.

19. The household appliance (1) according to any one of claims 15 and 16, wherein, A rotatable and perforated drum (4) is arranged in the processing chamber (3) for receiving laundry.

20. The household appliance (1) according to any one of claims 15 and 16, wherein, The front chamber (8) has a flushing assembly in which fresh water flowing toward the treatment chamber (3) is mixed with a treatment agent.

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