Water-conducting domestic appliance

Abstract

The invention relates to a washing machine comprising: a housing and a drum for laundry arranged therein; a water-conducting system having water inflow from the outside into the washing machine; a water outflow from the washing machine to the outside; water lines (LD, LE, LM, LP); a pump (P) and valves (V1, V2, V3, V4, V5, V6) in the water-conducting system; and a dosing device (20b, 20c, 20d) for detergent, washing-active substances, or the like. The dosing device comprises a plurality of containers (24b, 24c, 24d) for the detergent, is connected to the water-conducting system, and has a dosing line which extends from the detergent container to the water-conducting system, and dosing means in the dosing line which are designed to set a quantity of detergent that can be dosed from the container into the water-conducting system. At least one container chamber (31b, 33b) for the detergent is provided in each container (24b). Pressure-generating means (35b, 35c, 35d, 35e) are also provided and are connected to the container chamber (33b, 33c, 33d, 33e) for the detergent in order to apply pressure to the container chamber, thereby forcing the detergent into and through the dosing line.

Description

[0001] Water-bearing household appliance

[0002] Application area and state of the art

[0003] The invention relates to a water-bearing household appliance with a water guide and a dosing device.

[0004] Household appliances of this type with dosing devices, in particular washing machines, are known from the prior art; see, for example, DE 10 2006 026 800 A1 or DE 102019214481 A1. The dosing device allows detergents, surfactants, or similar substances to be applied to and onto the laundry to be treated or washed. To minimize the consumption of detergent or similar substances, precise dosing is advantageous. This also helps to reduce negative environmental impacts. However, depending on the condition of the detergents and the quantity to be dosed, this can be challenging.

[0005] Task and solution

[0006] The invention is based on the objective of creating a water-bearing household appliance as described above, with which problems of the prior art can be solved and in particular it is possible to dose detergents, washing-active substances or the like as well and, above all, as accurately as possible.

[0007] This problem is solved by a water-bearing household appliance with the features of claim 1. Advantageous and preferred embodiments of the invention are the subject of further claims and are explained in more detail below. The wording of the claims is incorporated by express reference into the description.

[0008] The water-bearing household appliance comprises a housing and a treatment chamber within that housing, advantageously, in the case of a washing machine, a drum holder and a rotatable drum therein. Alternatively, in the case of a dishwasher, a single wash chamber may be provided. Furthermore, the household appliance has a water supply system with a water inlet leading into the appliance from the outside and a water outlet leading out of the appliance. Most importantly, the water supply system also includes several water pipes, a pump, and valves, and optionally a filter and / or a heating element to heat the water for the treatment of the items. The aforementioned functional units can either be combined into a single assembly or advantageously connected to one another via the water pipes.

[0009] Furthermore, the household appliance features a dosing device for dispensing detergents, surfactants, or similar substances, i.e., adding them to the desired items for treatment, particularly cleaning. The dosing device itself has at least one container holding the detergent or surfactants; advantageously, it has several containers with different contents. These containers are preferably designed to hold enough detergent or surfactants for multiple treatments, eliminating the need to manually add detergent or similar substances for each treatment. This dosing device is connected to the water supply, primarily via a dosing line that runs from the at least one container to the water supply. Advantageously, exactly one such dosing line is provided per container.Dosing devices are arranged in or on the dosing line to allow for the precise metering of detergent, surfactants, or similar substances from the container into the water supply for treatment of the items. These dosing devices can advantageously be designed as valves or metering valves, and are particularly advantageously electrically controlled. If the household appliance or dosing device contains several containers of detergent, surfactants, or similar substances, then advantageously exactly one dosing line, including its dosing devices, leads from each of these containers to the water supply. Thus, the detergents, surfactants, or similar substances are mixed together only within the water supply. This is advantageously done with a larger quantity of water, which immediately dilutes them, allowing for better mixing and incorporation to prevent clumping.

[0010] According to the invention, the container includes at least one chamber for the detergent or for the surfactants, etc. Furthermore, pressure-generating devices are provided, which are connected to said chamber to pressurize it. This allows the detergent or surfactants to be dispensed into the dosing line and, from there, metered into the water supply for intended use by means of the dosing devices. The use of these pressure-generating devices, which are advantageously controllable, improves dosing. In particular, this ensures that the detergent or surfactants to be dosed are always present at the dosing devices under pressure, especially between 5 mbar and 0.5 bar or even 1 bar above normal pressure, with this pressure advantageously being within a precisely defined range.Then, by actuating the dosing devices in a predetermined manner, in particular by opening a dosing valve, a precisely predictable amount of detergent or surfactants can be dosed for a predetermined time.

[0011] The invention thus enables more precise and efficient dosing, as it achieves a more uniform flow of detergent or surfactants through the dosing devices, particularly regardless of the fill level of the detergent in the container chamber. Both the pressure generation devices and the dosing devices contribute to this.

[0012] In a possible first basic embodiment of the invention, the container in the dosing device can have two compartments, i.e., be internally subdivided. These two compartments can advantageously be separated from each other by a flexible partition. The container itself can be rigid or have rigid walls, particularly as outer walls. One compartment can then be designed as a storage compartment containing the detergent, surfactants, or the like. The other compartment can then be designed as a pressurized compartment, containing a pressurized medium, preferably gas, or a pressurized material, for example, a spring or the like.As the reservoir chamber empties due to the dispensing of detergent, surfactants, or similar substances and their application to a treatment process, the pressure chamber expands via the flexible partition. This expansion is precisely what forces the detergent out of the reservoir chamber.

[0013] In an alternative embodiment of the invention, the container in the dosing device can also have two container chambers separated from each other by a flexible partition. One container chamber contains the detergent, surfactants, or the like, and can thus be considered a storage container chamber. The other container chamber, located on the other side of the flexible partition, can be relatively small and, as a pressure container chamber, has a pressure supply line leading to pressure-generating means. These pressure-generating means can be, for example, a pump, or alternatively, an external supply of pressurized gas or the like. This can have the advantage that the dosing device has several containers and thus also several storage container chambers, each with an adjacent pressure container chamber and pressure supply line.If all these pressure supply lines lead to a single pressure generator, this generator only needs to be provided once, which helps to reduce the overall effort. If no detergent is to be dispensed from a storage tank chamber, it is sufficient for the dosing devices in the respective dosing line downstream to remain closed, so that they only dispense detergent or surfactants in the desired quantity where explicitly required. This helps to reduce the overall effort.

[0014] The pressurized medium in the pressure vessel chamber can be a pressurized gas. In the simplest case, this can be air or ambient air that has been introduced into the pressure vessel chamber. Other gases, possibly with specific properties, can also be used.

[0015] If the pressure vessel chamber contains a material, a mechanical spring device can be advantageous. This could be a compressed helical spring. This spring can push the flexible partition away from itself, like a piston, or push it into the reservoir chamber. The partition is then flexible in its arrangement, meaning it can be moved. Alternatively, a leaf spring could be used instead of a helical spring. Suitable materials for this include plastic and metal.

[0016] As an alternative to a leaf spring or coil spring, which derive their spring force primarily from bending, a mechanical spring mechanism can also be achieved using elastic materials such as rubber, foam rubber, or similar. This material is then highly compressed and presses against the flexible partition. This partition can optionally be integrated with the material as a single unit, or the flexible partition can be formed by the material itself.

[0017] In a further embodiment of the invention, it is advantageous if the dosing device comprises at least two containers with two different detergents or surfactants. Each of these containers is connected to the water supply via its own dosing line, with each dosing line containing exactly one of the aforementioned dosing agents or possibly two dosing agents. These at least two dosing agents can be of different designs and, in particular, adapted to the type, viscosity, and quantity of the substance to be dosed from the container. Possible dosing agents can be selected generally from the group consisting of shut-off valves, proportional valves, and pumps such as gear pumps, peristaltic pumps, or vibratory pumps. If a pump of the aforementioned type is used as the dosing agent, it can be advantageous to provide an additional shut-off valve. This additional shut-off valve can, in principle, be located upstream or downstream of the pump.It is particularly advantageous to arrange the shut-off valve upstream of the pump or between the pump and the container. This protects the pump from pressure that may be exerted by the storage container chamber or under which the substance contained therein is subject. In a further embodiment of the invention, the aforementioned pressure supply line can lead to a pressure container chamber or directly into the container in order to pressurize the container chamber containing the substances. A controllable valve, preferably a proportional valve, should be arranged in this pressure supply line to regulate the pressure. This makes it possible to utilize this water pressure when sufficient water pressure exists in the water system, which is generated in particular by a pump for circulating water in the water system or for introducing or pumping water into the treatment chamber under pressure, and for example, for pumping it out.This allows the described pressure to be exerted on the container chamber containing the substances, so that these can be introduced into the water supply via the associated dosing line. In this case, the pressure is generated by a pump already present in the household appliance.

[0018] Furthermore, in the aforementioned design, an automatic pressure regulator can be installed in the pressure supply line from the water supply to the pressure tank chamber or the tank itself. This automatic pressure regulator can preferably be a throttle valve set to a preset value or pressure. This can be preset, for example, during the initial installation of the appliance, possibly also to match the water pressure at the appliance's location. This water supply, or the pressure it generates in the water supply, can then also be a certain pressure, which can then be applied to the tank via the pressure supply line, albeit with a throttle valve and possibly a valve. The pressure can then be adjusted later by a plumber or qualified person, or automatically by the appliance itself.

[0019] In a possible second fundamental embodiment of the invention, the aforementioned pressure supply line can lead directly into the container, so that the container has only a single chamber. This reduces the required installation space or offers more volume for detergents or surfactants and also ensures good and precise dosing of substances with significantly different viscosities.

[0020] In a further development of the invention, the water system can be equipped with a sensor that can analyze the composition of the fluid within the system. This can also be used to determine the amount of detergent, surfactant, or similar substances added. Furthermore, this sensor, or one additional sensor, can be used to detect contamination or bacterial growth in the water. For this purpose, appropriate marker substances can advantageously be introduced from one of the reservoir chambers into the water system or onto the sensor to enable this analysis.

[0021] Furthermore, this additional line can be used to transfer fluid or water from the sensor back into the water supply. This allows the sensor to be cleaned and prepared for further use.

[0022] Preferably, the household appliance has at least three containers, two of which contain detergents or surfactants with different viscosities. For example, a first detergent could be for whites or cottons, a second for coloreds, and a third for wool or delicate fabrics. Additional surfactants could include water softeners, fabric softeners, sanitizing rinses, or similar products.

[0023] These and other features are evident not only from the claims but also from the description and the drawings, whereby the individual features, either alone or in combination, may be implemented in one embodiment of the invention and in other fields, and may represent advantageous and individually protectable embodiments for which protection is claimed here. The division of the application into individual sections and subheadings does not limit the general validity of the statements made therein.

[0024] Brief description of the drawings

[0025] Further advantages and aspects of the invention will become apparent from the claims and from the description of exemplary embodiments of the invention, which are explained below with reference to the figures. These figures show:

[0026] Fig. 1 shows a schematic representation of a washing machine as a water-bearing household appliance according to the invention with a dosing device below a drum,

[0027] Fig. 2 shows a modification of the washing machine from Fig. 1 with a dosing device above the drum,

[0028] Fig. 3 shows a schematic functional representation of a water line with a mixing circuit including a pump and two containers with detergent or surfactants, which are connected to a mixing line by means of a shut-off valve and throttle or metering pump. Fig. 4 shows a modification of the metering device similar to Fig. 3 with a single container for detergent, which is connected to the mixing line and which has a flexible partition to which pressure can be applied by means of a water line to dispense the detergent.

[0029] Fig. 5 shows a further modification of the dosing device from Fig. 4 with a sensor through which the detergent is passed before it enters the mixing line.

[0030] Fig. 6 shows a further embodiment of a dosing device with a sensor on the mixing line and with a compressed air reservoir which is connected by means of a valve to a container with detergent in it,

[0031] Fig. 7 shows a further modification of a dosing device similar to Fig. 6 with a so-called air lifter to meter detergent from the container into the mixing line using compressed air, and

[0032] Fig. 8 shows a rest state and a metering state of the air lifter from Fig. 7.

[0033] Detailed description of the exemplary implementations

[0034] Figure 1 shows a washing machine 11 with a housing 12 and a drum holder 14 therein. A drum 15, shown with dotted lines, is mounted in the drum holder 14 and is rotatable about a horizontal axis of rotation, as is known. A water inlet W z passes through an inlet valve V z into the washing machine 11. A water drain W A leads out.

[0035] An inflow line L z leads from the inlet valve V z to a filter 17, from where another line L D via a pump valve V designed as a three-way valve P into a metering device 20 according to the invention. A short water line leads to a pump 18, and from there to an outlet valve V designed as a three-way valve. A An inlet line L E leads from the outlet valve V Ato an injection device 19 which sprays water in a known manner onto laundry located in the drum 15.

[0036] Below, a drain 16 extends from the drum holder 14 and is connected to a drain line L. A and a shut-off valve V F to filter 17. The line L z from the water inflow W z The flow to filter 17 could also be directed directly into the dosing device 20, but it is advantageous for the incoming water to be filtered first in filter 17.

[0037] The dosing device 20 is explained in more detail below in Figures 3 ff. Figure 1 illustrates that this dosing device 20 can be located just below the drum holder 14 and thus in the lower area of ​​the washing machine 11. As will be explained below, this dosing device 20 is designed for the automatic dosing of detergents, surfactants, or the like. Therefore, an operator only very rarely needs access to the dosing device, for example, to refill it. An advantage of this is that more space is available in the upper part of the washing machine housing 12, for example, for a larger drum holder 14 and drum 15, or alternatively, simply to position it higher for better accessibility.The dosing device 20 can then also be arranged in a kind of pull-out drawer, as is known, for example, from WO 2019 / 081014 A1 or DE 10 2022 213 808 A1.

[0038] Figure 2 shows an alternative washing machine 111 with a housing 112, of which only the drum holder 114 including the drain 116 and injection device 119 is shown here. A dosing device 120 is arranged above the drum holder 114, specifically almost at the highest possible point in the washing machine 11 or in the housing 12. Water can be fed into the dosing device 120 either from the water inlet W. z and inlet valve V z come via an inflow line L Z1 Fresh water can be mixed with detergent and then applied directly to the laundry via the injection device 119. A further inlet line L Z2leads to filter 117 and from there to a pump 118. From there, an injection line L leads. E at a drain valve V A past the metering device 120, and from there to the injection device 119. A comparison with Fig. 1 shows that the pump valve V P missing, with which a kind of closed circuit of pump 18 and dosing device 20 can be created.

[0039] Figure 3 schematically illustrates a first embodiment of a metering device 20a. The metering device 20a has a mixing circuit 22a, which consists of a pump line L. P and a mixed line L M consists of two three-way valves, V2 and V1. They are connected by means of two three-way valves. Valve V2 could be connected to the pump valve V1. P from Fig. 1, and the other valve V1 corresponds to the drain valve V A . Then it would have to be a four-way valve.

[0040] Water flows into valve V2 from the right; can the mixing line L M through and into injection line L at valve V1 E run in and thus to the injection device 19 as shown in Fig. 1. In the lower pump line L P A pump P is provided. This can correspond to pump 18 from Fig. 1, but it can also be a separate mixing pump that is only responsible for mixing.

[0041] The dosing device 20a further comprises a first container 24a and a second container 24'a. Each container 24a and 24'a can contain detergent, surfactants, or the like. These are intended to support a washing cycle in the washing machine or the cleaning of laundry. Figure 3 shows how the dosing agents from containers 24a and 24'a enter the mixing circuit 22 and then flow via the injection line L. EIntroduce or dose them. The precise dosage or amount of these substances is important for the reasons mentioned above.

[0042] Behind the left container 24a and before the left dosing agent, a shut-off valve V4 is connected via a possibly short line. This valve is essentially set to be fully open or fully closed; its flow rate is controlled by the duration of its open position, not by a partially open cross-section. This allows the design of the shut-off valve V4 to be as simple as possible.

[0043] Behind the shut-off valve V4 is a throttle valve D. It may be adjustable, but in simpler designs it may simply be set to a specific flow rate at a specific applied pressure. This throttle valve is connected to the mixing line L by a short line. M tied together.

[0044] Behind the right-hand container 24'a is a shut-off valve V'4, which is advantageously designed and used in the same way as the shut-off valve V4 behind the left-hand container 24a. Behind the shut-off valve V'4 is a small metering pump 26'a. It can be designed, for example, as a gear pump, a peristaltic pump, or the like. Its outlet is connected to the mixing line L. M tied together.

[0045] Thus, both containers 24a and 24'a are each connected to the mixing line L via a shut-off valve V4 and V'4. M connected. In the case of container 24a, an adjustable or fixed throttle D is interposed; in the case of container 24'a, a metering pump 26'a. With throttle D and metering pump 26'a, the flow rate can be adjusted to the expected and known viscosity of the substance to be metered or mixed in. These substances can then be mixed with water in the mixing line L. Mand with valves V1 and V2 appropriately adjusted in the mixing circuit or in the circuit through the pump line L P The water is pumped around and thoroughly mixed in the process. This can be driven by pump P. If complete mixing can be assumed after a certain duration or after a certain water flow rate through pump P, then valve V1 can be opened to the injection line L. E The unit is opened and the water-substance mixture is applied to the laundry, as is generally known. Figure 4 shows a slightly differently designed dosing device 20b with a mixing circuit 22b, which is basically designed as shown in Figure 3. Here, the mixing line L M A sensor 28 is connected, which is used to check whether substances are added to the water in the mixing line L in the correct quantity, as desired. Mor have been introduced into the mixing circuit 22b.

[0046] The dosing device 20b has a container 24b which contains a flexible partition 30b (shown as a dotted line) inside. This partition divides the container 24b into a lower (left) first chamber 31b and an upper (right) second chamber 33b. The first chamber 31b contains detergent or a surfactant, which is introduced into the mixing circuit 22b in the desired quantity and at the desired time via throttle D and shut-off valve V4. To ensure that even highly viscous, very thick, or viscous substances enter the mixing circuit 22b, the second chamber 33b is under the aforementioned pressure and exerts this pressure on the first chamber 31b.The separation 30b serves here to ensure that, for example, the medium in the second container chamber 33b does not come into contact with the detergent or the washing-active substance in the first container chamber 31b and negatively affect it.

[0047] A pressure line L is connected to the second container chamber 33b as a type of pressure generating means 35. D connected to a shut-off valve V5. This pressure line L is connected via a valve V6 designed as a three-way valve. D One connection is either to a line that can be used, for example, for backwashing filter 17 or 117 according to Fig. 1 or Fig. 2. The other connection leads via a pressure regulator 37b and another valve V3 to the dosing line L. DThe pressure regulator 37b can be adjustable or fixed at a specific pressure. Thus, by controlling valves V3, V6, and V5, pressure can be exerted on the second reservoir chamber 33b and, via the flexible partition 30b, on the first reservoir chamber 31b, which is ultimately supplied by a pump or by the water inlet W. z The generated amount can be used to dose a detergent or substance of any viscosity with sufficient pressure and adjustable quantity through the throttle D and the shut-off valve V4 into the mixing circuit 22b.

[0048] The flexible partition 30 can be a water- and air-impermeable flexible membrane. It can be designed and arranged such that, when the container 24b is freshly filled with detergent, it separates a very small second container chamber 33b, thus maximizing the size of the first container chamber 31b for the detergent. As the amount of detergent decreases, the partition 30b expands accordingly, or the first container chamber 31b becomes smaller and the second container chamber 33b correspondingly larger. Figure 5 shows another dosing device 20c with a mixing circuit 22c, which is similarly designed to the one in Figure 4. A line for the detergent to be dosed leads from the container 24c or a lower first container chamber 31c via the shut-off valve V4 and a throttle D to a sensor 28c. From there, the detergent can flow via a short line into the mixing line L. MThe detergent enters the mixing circuit 22c, regardless of its viscosity, due to the pressure. The detergent passes through sensor 28c, which may not only chemically analyze it but also, or even exclusively, function as a quantity or flow sensor. This allows the precise determination of the amount of detergent flowing through and thus being dosed. Sensor 28c is connected to valve V5 via a line, allowing it to be rinsed and cleaned after use. Otherwise, a pressure line L leads to the sensor. D from the pressure generating means 35c into the second container chamber 33c, where a pressure regulator 37c is also provided in the valve V3. Unlike in Fig. 4, the sensor 28c is therefore arranged in a different location, is directly exposed to the detergent being dosed, and can also be rinsed clean.

[0049] The configuration shown in Fig. 5 also allows for the use of marker substances, for example, for pH measurement. In this case, valve V7 could optionally be provided behind sensor 28c, which is connected via a line to either the second container chamber 33c or a third container chamber (not shown) in container 24c. The marker substances could be placed in this third container chamber after being discharged from sensor 28c for storage until they can be replaced or disposed of together with container 24c.

[0050] Figure 6 shows a further embodiment of a dosing device 20d with a mixing circuit 22d. Similar to Figure 4, a sensor 28d is located on the mixing line L. MA container 24d has a first container chamber 31d containing detergent or surfactants. It is separated from a second container chamber 33d by a flexible partition 30d as previously explained. Detergent can flow from the first container chamber 31d through a throttle D into the mixing line L at a set or adjustable flow rate. M be introduced.

[0051] Pressure generating means 35d are provided to generate the pressure that forces the detergent out of the container 24d. The pressure generating means 35d have a compressed air reservoir 39d, for example, a compressed air cartridge or a CO2 cartridge, as known from a wide variety of applications. They can be under very high pressure. This compressed air is supplied via a suitably designed valve V5 and the pressure line L. Dinto the second container chamber 33d. While in Figures 4 and 5 the pressure is applied to the container 24 via a water line, in Figure 6 it is air that serves as the pressure medium. This will eventually be used up, or the compressed air container 39d will be empty. Then it must be replaced, possibly with an empty container 24d, to obtain new detergent or other substances.

[0052] Figure 7 shows a further metering device 20e with a mixing circuit 22e. The mixing circuit 22e is designed in the same way as in Figure 6; therefore, reference is made to the description there. The connection of a container 24e to the mixing line L M This is done via a V4 shut-off valve.

[0053] The pressure generating means 35e also include a compressed air reservoir 39e and a shut-off valve V5, one of which is a pressure line L. Dinto the lower section of container 24e. As an enlarged view of container 24e in Fig. 8 shows, there is no flexible partition or similar device, and therefore no defined division into two container chambers. A so-called airlift pump is used here, which draws compressed air from a compressed air reservoir 39e, the flow of which can be precisely regulated by means of a shut-off valve V5. In the enlarged version of Fig. 8, the state in container 24e with shut-off valve V5 closed is shown on the left. A riser pipe 41e runs approximately vertically and is open downwards just above the bottom of container 24e. It is surrounded by a circumferential sleeve 43e, to which the pressure line L is connected. D is connected. The riser pipe 41e extends upwards almost to a lid of the container 24e, bends to the right there and runs out of the container 24e as a line to the shut-off valve V4 according to Fig. 7.

[0054] If the shut-off valve V5 is closed, as shown on the left in Fig. 8, the liquid level of detergent WM inside the riser pipe 41e is the same as in the rest of the container 24e. If air from the compressed air reservoir 39e is now admitted into the sleeve 43e by opening the valve V5 as shown on the right in Fig. 8, rising air bubbles form in the detergent WM and carry it upwards into the pressure line L. D into. Even with a known viscosity of the detergent WM, precise dosing of the detergent is possible, even if its viscosity is quite high. Further quantity determination of the dosed detergent WM can be carried out, as previously described, for example via a sensor 28 on the mixing circuit 22e.

[0055] The invention thus allows for the advantages of increased and more easily achievable dosing accuracy with concentrated or even highly concentrated detergents and other surfactants, particularly when their viscosities vary considerably or are very high. By adjusting the pressure via the pressure generating means 35, a resource already present in the washing machine, namely water pressure, can potentially be utilized. If passive throttles for the dosing agents are used in the dosing device, they are easy to use and robust in operation. Often, simple shut-off valves can be used, which can, for example, also be pinch valves, thus keeping the effort to a minimum.

Claims

Patent claims 1. A water-carrying household appliance comprising: a housing and a treatment chamber for objects in the housing, a water supply system with an external water inlet into the household appliance, a water outlet from the household appliance to the outside, water pipes, a pump and valves in the water supply system, and a dosing device for detergents, surfactants, or the like, wherein the dosing device comprises: at least one container for the detergent, is connected to the water supply system, and has a dosing line leading from the container for the detergent to the water supply system. Dosing devices arranged in the dosing line and designed to adjust the quantity of detergent, surfactants, or the like that can be dosed from the container into the water supply, characterized in that: at least one container chamber for the detergent, surfactants, or the like is provided in the container, Pressure generating means are provided which are connected to the container chamber for the detergent in order to pressurize it in order to force the detergent, the washing-active substances or the like into and through the dosing line.

2. Household appliance according to claim 1, characterized in that the container has two container chambers which are separated from each other by a flexible partition, wherein one chamber as a storage container chamber contains the detergent, the washing-active substances or the like, and wherein the other chamber as a pressure container chamber contains either a pressurized medium or a pressurized material.

3. Household appliance according to claim 2, characterized in that a pressurized gas, preferably air or ambient air, is located in the pressure container chamber separated from the storage container chamber containing detergent.

4. Household appliance according to claim 1 or 2, characterized in that the pressure on the flexible partition in the container is exerted by a mechanical spring device as a pressure generating means, wherein the mechanical spring device is preferably arranged in the pressure container chamber.

5. Household appliance according to claim 4, characterized in that the spring device is a leaf spring or a coil spring, preferably made of plastic or metal.

6. Household appliance according to claim 1, characterized in that the container in the dosing device has two container chambers which are separated from each other by a flexible partition, wherein the detergent, the washing-active substances or the like are located in one chamber as a storage container chamber, and wherein the other chamber as a pressure container chamber has a pressure supply line to pressure generating means.

7. Household appliance according to claim 6, characterized in that the pressure supply line is led from the water supply to the pressure vessel chamber, preferably with at least one valve in the pressure supply line, wherein the pressure supply line is preferably connected to the water supply near the pump.

8. Household appliance according to claim 6 or 7, characterized in that an automatic pressure regulator is arranged in the pressure supply line between the water guide and the pressure vessel chamber, wherein the automatic pressure regulator is preferably a throttle and is set to a preset pressure, in particular having been preset during the assembly of the household appliance.

9. Household appliance according to one of the preceding claims, characterized in that the dosing device has at least two containers with two different detergents, washing-active substances or the like, and each container is connected to the water supply by means of a dosing line, wherein the dosing agents provided in the dosing line of these two containers are of a different design, and wherein each of the containers is provided with pressure generating means.

10. Household appliance according to one of the preceding claims, characterized in that the dosing means are selected from the group consisting of: shut-off valve, proportional valve, pump, in particular gear pump, peristaltic pump or vibration pump, wherein Preferably, an additional shut-off valve is provided in the dosing line behind or before a pump.

11. Household appliance according to one of the preceding claims, characterized in that the water guide has a sensor for analyzing the composition of fluid in the water guide, wherein marker substances can preferably be introduced from one of the storage container chambers into the sensor by means of a direct line.

12. Household appliance according to claim 11, characterized in that fluid from the sensor or from the sensor can be introduced back into the water supply by means of a further line.

13. Household appliance according to one of the preceding claims, characterized in that at least 3 containers are provided, wherein at least 2 containers contain detergents or washing-active substances with different viscosities.

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