Flushing system, water-carrying household appliance and method for conveying fluid

Description

[0001] The invention relates to a flushing system for a water-conducting household appliance, a water-conducting household appliance and a method for conducting fluid.

[0002] The use of a flushing system in water-using household appliances, such as washing machines or washer-dryers, is well known. A known flushing system typically represents part of a water supply system designed to direct the media conditions external to the water-using household appliance, in particular the water line pressure and volume flow, into a treatment chamber of the water-using household appliance, either adjusted or unadjusted. For this purpose, the flushing system can supply a fluid (water or a mixture of water and other substances) to the treatment chamber.

[0003] In laundry treatment appliances, the treatment chamber can be a tub, for example. A perforated drum, which can hold textiles to be treated, can be rotatably mounted in the tub. Depending on the function that the laundry treatment appliance is intended to perform, it may be necessary to either direct the fluid directly onto the drum in order to directly moisten the textiles contained in the drum, or to feed the fluid to the tub in such a way that it does not directly moisten the textiles. In the latter case, the fluid can, for example, be fed to a heating element in the treatment chamber to be evaporated there. These two functionalities contradict each other, which is why it often happens that fluid cannot be fed into the treatment chamber according to the respective function.For example, a laundry treatment appliance may result in textiles placed in the drum being directly moistened, even though this is supposed to be prevented.

[0004] DE 20 2011 104 270 U1 describes a water-conducting household appliance for washing and drying laundry with a water retention device, wherein a lower retention rib is provided at an outflow-side end of the water retention device.

[0005] EP 3 358 067 A1 describes a washing machine in which washing water is divided by dividing a flow path.

[0006] Therefore, it is an object of the present invention to provide a rinsing system for a water-conducting household appliance, a water-conducting household appliance and a method for conducting fluid, in which a fluid can be supplied in a targeted manner to a tub even when the water-conducting household appliance has several functionalities.

[0007] This object is achieved by a dispensing system having the features of claim 1, a water-conducting household appliance having the features of claim 9 and a method for conducting fluid into a tub of a water-conducting household appliance having the features of claim 11.

[0008] According to one aspect of the present invention, a dispensing system for a water-conducting household appliance is provided, wherein the dispensing system is designed to be flowed through by a fluid from an upstream end to a downstream end in a main flow direction, wherein the dispensing system comprises: a hose main body, an outlet region arranged at the downstream end of the hose main body and having an opening for discharging the fluid, wherein the opening extends in an outlet plane, and a fluid guide geometry designed to guide the fluid, wherein the fluid guide geometry is arranged in the outlet region of the dispensing system such that it is located upstream of the outlet plane.

[0009] The water-conducting household appliance can, for example, be a laundry treatment appliance or a washer-dryer. It is also conceivable for the water-conducting household appliance to be a dishwasher. The water-conducting household appliance can have a treatment chamber to which a fluid (e.g. water or a mixture of water and other substances) is to be supplied. Furthermore, the water-conducting household appliance can have at least two different functionalities in which the fluid is to be supplied to the treatment chamber in different ways. In particular, the at least two functionalities can differ with regard to a volume flow of fluid to be supplied. For example, with the first functionality it can be desired that the fluid is introduced into the treatment chamber with a high volume flow and a high flow velocity (i.e. with high kinetic energy).In contrast, with the second functionality, it may be desirable for the fluid to be supplied to the treatment chamber at a lower volume flow and lower flow velocity (i.e., with lower kinetic energy). Compared to the known prior art, the present invention offers the advantage that the inventive arrangement of the fluid guidance geometry in the flushing system efficiently enables both the first functionality and the second functionality.

[0010] This ensures that multiple functionalities of the water-conducting household appliance can be implemented with only simple structural changes to the water-conducting household appliance (i.e., compared to a household appliance that does not have the functionalities). In other words, by providing only the dispensing system according to one embodiment of the present invention, it can be ensured that multiple functionalities can be implemented without problems. This offers the advantage that existing water-conducting household appliances can be modified easily and cost-effectively.

[0011] The induction system can be a tubular element designed to transport a fluid. In other words, the induction system can be designed to conduct and / or guide the fluid. The induction system can have a closed cross-section through whose center the main flow direction can run.

[0012] In other words, the main flow direction can follow the general course of the induction system. The induction system can have a curved course so that the induction system can be installed even in a confined space. Furthermore, the induction system can be easily adapted to different installation locations. The induction system can comprise a siphon designed to retain a certain amount of fluid and thus block the outflow cross-section for gases and / or odors. This can prevent gases and / or odors from being discharged from the treatment room through the induction system. The induction system can have an upstream end and a downstream end with regard to the flow direction of the fluid through the induction system. In other words, the fluid can flow through the induction system from the upstream end to the downstream end.The main flow direction can extend from the upstream end to the downstream end. The upstream end can be a cross-section of the dispensing system on its inlet side, and the downstream end can be a cross-section of the dispensing system on its outlet side. At the upstream end, the dispensing system can have a connection with which the dispensing system can be connected, for example, to a dispensing tray complex of a laundry treatment appliance and / or a water supply system of a water-conducting household appliance. The downstream end of the dispensing system can fix the dispensing system to a treatment chamber. In other words, the downstream end of the dispensing system can be attached or attachable to a treatment chamber. In a laundry treatment appliance, the treatment chamber can comprise, for example, a laundry drum and a tub.An outer boundary of the treatment room can be defined by the lye container.

[0013] The fluid can be a mixture of water and other substances. However, the fluid can also be just water. The other substances can be, for example, laundry treatment agents such as detergents, fabric softeners, fragrances, waterproofing agents, and the like.

[0014] The hose main body can extend between the upstream end and the downstream end of the dispensing system and form part of the dispensing system. More specifically, the hose main body can connect the siphon provided in the dispensing system to the outlet area of ​​the dispensing system. The hose main body can be formed from a flexible material so that the dispensing system can be laid or provided flexibly and variably. Furthermore, elasticity of the hose main body can provide the advantage that the dispensing system can connect a stationary system (e.g., a dispensing bowl complex) to a moving or oscillating system (e.g., an oscillating system of a laundry treatment appliance) without itself being damaged. The elasticity can be provided, for example, by a choice of material and / or by a geometric design of the hose main body.For example, the hose body can be made of rubber. Furthermore, the hose body can have a bellows section that can compensate for vibrations (i.e., changes in the length of the induction system) without causing the induction system to fail.

[0015] The outlet region may refer to a part of the induction system that is provided at the downstream end of the induction system with respect to the main flow direction of the fluid. The outlet region may directly adjoin the hose main body. The outlet region may extend a certain distance from the downstream end of the induction system toward the upstream end of the induction system. The most downstream cross-section of the induction system may be arranged in the outlet region. In other words, this most downstream cross-section may be the opening of the induction system, from which the fluid that has passed through the induction system can be discharged. The opening may be located in the outlet plane, which may be substantially orthogonal to the main flow direction of the fluid. The outlet plane may also be a curved or curved plane.Thus, the outlet area can be optimally adapted to the shape of a treatment room. This enables leak-free transport of the fluid from the flushing system into the treatment room. In particular, it is possible to connect the flushing system to the treatment room without adapters or the like. Preferably, the outlet area can be formed from an elastically deformable material, so that the outlet area can simultaneously provide a seal to the treatment room.

[0016] The fluid guidance geometry can be a structural element that can guide a fluid flowing through the induction system. In other words, the fluid guidance geometry can be provided within the flow cross-section of the induction system. Guidance can be understood here to mean that flow properties of the fluid, such as a flow velocity and / or a flow direction, can be influenced (i.e., changed) by the fluid guidance geometry. The fluid guidance geometry can be provided in the induction system in such a way that the fluid flows over it at least partially. This can ensure that the fluid can be guided in an efficient manner.The fluid guidance geometry can cause the fluid transported or guided through the induction system to have a different direction and / or flow velocity at the outlet plane compared to the case where no fluid guidance geometry is provided in the induction system. Thus, the fluid guidance geometry in the induction system can ensure that the fluid flows out of the induction system in a predefined manner without the need for additional components and / or devices outside the induction system. Thus, simply providing the induction system can influence the manner in which fluid is supplied to a treatment chamber.

[0017] The fluid geometry can be arranged such that it is not located directly in or at the outlet plane, but is shifted towards the upstream end of the induction system. In other words, the fluid geometry can be spaced from the opening of the induction system. The upstream shift of the fluid guidance geometry has the effect that the fluid can be guided before reaching the outlet plane in such a way that the fluid has already been influenced (e.g. has already been deflected) when it reaches the outlet plane. A greater deflection of the fluid can thus be provided at the location of the outlet plane, so that immediately downstream of the outlet plane (i.e. outside the induction system) the fluid is deflected in the desired direction and / or has a desired flow velocity. The fluid guidance geometry can be designed such that it redirects fluid up to a certain volume flow.If, on the other hand, the volume flow of the fluid is above this specific volume flow, the fluid can flow through the induction system without being significantly influenced by the fluid guide geometry. In other words, a first functionality of the water-conducting household appliance can transport fluid of, for example, approximately 10 l per minute, whereas a second functionality of the water-conducting household appliance transports fluid through the induction system at a rate of only approximately 0.5 l per minute. The fluid guide geometry can be designed such that, in the first functionality, it does not significantly influence the outflow of the larger volume flow, whereas in the second functionality the fluid can be guided through the fluid guide geometry. This can be achieved by completely overflowing the fluid guide geometry in the first functionality.In some cases, the first functionality may involve a pressure discharge in the induction system. Thus, the influence of the fluid flow geometry on the flow may be minimal. In contrast, the second functionality may involve a gravity discharge in the induction system, so that the fluid flow is significantly influenced by the fluid flow geometry. In other words, more fluid can be directed through the induction system in the first functionality than in the second. This offers the advantage that the induction system can be used efficiently for both functionalities without having to compromise on the respective functionality.

[0018] By providing the fluid guidance geometry, the flow properties of the fluid in the area of ​​the outlet plane can be influenced depending on the fluid's volume flow. In other words, the fluid can be discharged from the induction system in different ways at different volume flows. Thus, the induction system can be particularly useful if, for example, different functionalities are provided in a water-conducting household appliance and the fluid is to exhibit different flow properties (such as flow velocity and / or flow direction) after flowing through the outlet plane.

[0019] The fluid guide geometry preferably has a region over which fluid can flow, which is arranged essentially orthogonal to the main flow direction of the fluid through the induction system. The fluid guide geometry can have a lip over which a fluid can flow in the operating state. The lip can define a type of drip edge, beyond which, during operation, the fluid is no longer in contact with the induction system. In other words, after passing through the fluid guide geometry, in particular the lip, the fluid can be discharged in free fall, driven by the flow velocity and gravity. In other words, after passing through the fluid guide geometry, the fluid can flow away in a fluid jet.Because the fluid guide geometry can be arranged essentially orthogonal to the main flow direction of the fluid, it can be ensured that the entire fluid discharged through the induction system is discharged via the fluid guide geometry and can therefore be guided through it. Furthermore, the lip or drip edge can have the same distance from the outlet plane along its extent. In this way, the flow properties of the fluid can be influenced uniformly. Essentially orthogonal can mean that the fluid guide geometry is arranged such that an angle between the main flow direction and the fluid guide geometry is 90° plus or minus 5°. In this range, it can be ensured that the fluid is deflected or influenced such that it has the desired flow direction and / or flow velocity in the outlet plane.

[0020] Alternatively, the separation edge can also be curved or inclined, so that only a part of the area over which the flow passes, or no section of the area over which the flow passes, is orthogonal to the main flow direction of the fluid. In this case, too, the fluid guidance geometry can be arranged upstream of the outlet plane. However, not every part of the fluid guidance geometry, in particular the separation edge, can have the same distance from the outlet plane. In other words, the distance of the separation edge can vary along the direction of extension of the separation edge relative to the outlet plane. This allows the fluid to be guided in a targeted manner. This is advantageous, for example, if fluid is to be introduced into the treatment chamber in a specific manner distributed along the main flow direction.

[0021] Preferably, a separation edge of the fluid guidance geometry is 0.2 mm to 5 mm, preferably 1 mm to 4 mm, more preferably 2.5 mm to 3 mm, away from the outlet plane. The separation edge can be the lip and / or the drip edge of the fluid guidance geometry. It has been found that a distance of 0.2 mm to 5 mm for the fluid guidance geometry is particularly suitable if a fluid discharged through the induction system is to be supplied to a specific point in the treatment chamber. In other words, the flow properties of the fluid can be reliably influenced in this range. In the distance range of 1 mm to 4 mm, it has been shown that the fluid can still be reliably guided even if the induction system deflects the main flow of the fluid immediately upstream of the outlet area (i.e., for example, in the main hose body).In other words, due to the fluid guidance geometry, the fluid can have a specific direction that deviates from the main flow direction in the dispensing system when the fluid flows into the outlet plane. Thus, in the distance range from 1 mm to 4 mm, satisfactory guidance of the fluid can also be achieved, for example by influencing the direction and / or flow velocity of the fluid so that it corresponds to a desired flow velocity and / or flow direction of the fluid in the outlet plane. In the distance range of the separation edge of the fluid guidance geometry from 2.5 mm to 3 mm, it has proven particularly advantageous for use in laundry treatment appliances. In this case, it may happen that the fluid discharged from the dispensing system has to be deflected relatively sharply, for example to prevent fluid from hitting a drum provided in the treatment chamber.This clearance allows the fluid to be introduced satisfactorily into the treatment chamber without coming into contact with the drum. Thus, the clearance range of 2.5 mm to 3 mm allows the fluid to be discharged between a drum provided in the treatment chamber and an inner wall of the treatment chamber without impacting the drum.

[0022] Preferably, an outflow cross-section available to the fluid at the location of the fluid guide geometry is at least 10%, more preferably at least 20%, smaller than the outflow cross-section at the location of the opening. The outflow cross-section at the location of the opening can lie in the outlet plane. In other words, the outlet region can have at least two different outflow cross-sections: a first outflow cross-section at the location of the fluid guide geometry and a second outflow cross-section at the location of the opening. The first outflow cross-section can be smaller than the second outflow cross-section. This can force the fluid transported through the induction system to flow away via the fluid guide geometry. This allows the fluid to be guided efficiently through the fluid guide geometry and, for example, a flow velocity of the fluid can be reduced.Furthermore, by reducing the outflow cross-section, similar to the way a nozzle works, the flow direction of the fluid can be determined. The percentage of reduction refers to the fully open flow cross-section in the outlet plane. In other words, the outflow cross-section at the point where the outlet plane opens is 100% open (in other words, reduced by 0%). Furthermore, by reducing the outflow cross-section, the fluid flows evenly over the fluid guide geometry. This ensures a uniform flow depth on and / or at the fluid guide geometry, so that all of the fluid transported through the induction system can be guided evenly through the fluid guide geometry. In other words, this avoids possible wave formation on the fluid guide geometry, thus preventing fluid from escaping from the induction system in an undesirable manner.

[0023] The fluid guide geometry preferably has at least one guide lip that extends substantially along the main flow direction and is designed to guide the fluid. The at least one guide lip can, for example, be orthogonal to the separation edge of the fluid guide geometry. The guide lip can be designed to even out the flow of the fluid on the fluid guide geometry. This is particularly advantageous when the induction system or the main flow direction of the induction system forms a curve and the fluid thus impacts the fluid guide geometry with a swirling flow. The guide lip can ensure that the fluid exits the outlet plane of the induction system evenly. This can ensure that the fluid is supplied to the treatment chamber in a targeted and even manner.

[0024] According to the invention, the outlet region has an impact surface arranged between the outlet plane and the fluid guide geometry, which is designed to reduce the kinetic energy of the fluid that has passed through the fluid geometry. In other words, the impact surface can be arranged in the induction system such that the fluid that has passed through the fluid guide geometry during operation of the induction system is directed directly onto the

[0025] impact surface. The fluid guidance geometry can thus be designed to guide the fluid onto the impact surface. The impact surface can, for example, represent the wall of the outlet region. The wall can, for example, be an inner surface of the outlet region. In other words, the fluid can first be guided through the fluid guidance geometry onto the impact surface and from the impact surface can exit the induction system through the opening in the outlet plane. In this way, kinetic energy built up, in particular when passing through the main hose body, can be at least partially dissipated before the fluid leaves the induction system. This makes it possible to provide particularly precise and targeted guidance of the fluid as it exits the opening in the outlet plane.This is particularly advantageous when there is limited space available for the fluid to drain away after exiting the induction system, and the fluid needs to be directed into the available space. Furthermore, it can reduce the radius of the jet arc that the fluid can describe after leaving the induction system.

[0026] The outlet region preferably has a receiving region designed to receive a flange of a treatment chamber. In other words, the dispensing system can be placed with the outlet region onto a flange of a treatment chamber (e.g., a tub). The flange can thus contact the inner circumferential surface of the outlet region. In order to attach the dispensing system to the treatment chamber, the dispensing system can be fixed to the treatment chamber externally via the outlet region (i.e., on the outer surface of the outlet region) using a clamp or the like. In this case, the impact surface can be realized by the flange. The dispensing system can thus be designed to be removable from a treatment chamber, so that the dispensing system can be easily integrated into existing water-conducting household appliances.

[0027] Preferably, the fluid guide geometry has a flow-over region on its downstream side, wherein the flow-over region can have a radius designed to guide the fluid along the flow-over region during operation of the induction system. The downstream region of the fluid guide geometry can face the outlet plane. In other words, the downstream region of the fluid guide geometry can be the drip edge or the lip of the fluid guide geometry.

[0028] The fluid can drip off from the area over which it can flow (i.e. leave the fluid guidance geometry) and enter a free fall. By providing a radius on the fluid guidance geometry, the fluid can be guided in a desired direction before leaving the fluid guidance geometry. The radius can be selected such that boundary layer separation or flow separation of the fluid does not occur. For example, the radius can be selected such that the fluid is deflected by no more than 6° from its flow direction in front of the fluid guidance geometry. This can ensure that the fluid follows the radius and can be deflected accordingly. At the point on the fluid guidance geometry where the fluid is to separate from the fluid guidance geometry, the radius can be reduced abruptly or a step back can be provided so that the fluid separates from the fluid guidance geometry.This allows for even more precise control of the direction in which the fluid should be discharged from the induction system.

[0029] According to a further aspect of the present invention, a water-conducting household appliance is provided, comprising: a dispensing system according to the above embodiment, a substantially cylindrical tub with a connection flange to which the dispensing system is connected or connectable, and a drum for receiving laundry to be treated, which drum is rotatably arranged in the tub, wherein the dispensing system is connected or connectable in the upper half of the tub. The water-conducting household appliance can have a treatment agent chamber (e.g., a dispensing tray) for receiving a treatment agent. Furthermore, the water-conducting household appliance can have a water supply connection, which is connectable or connected to an external water source and which can supply the water to the treatment agent chamber. From there, the water or a mixture of treatment agent and water (iea fluid) can be fed to the dispensing system. The fluid can then be fed from the dispensing system to the tub. When the water-conducting household appliance is in operation (e.g. a washing operation), media conditions external to the household appliance (in particular water pressure and volume flow) can be passed on to the household appliance almost unhindered. A valve block can also be provided to control the water supply to the household appliance. The fluid can reach the actual process space (the oscillating system) through downstream water-conducting devices (inlet hose, dispensing bowl, filler hose, etc.). The process space can be formed by the tub and the laundry drum.

[0030] Thus, a relatively high volume flow (for example 10 l per minute) can ensure that the laundry in the drum is quickly moistened and that a sufficiently high water level is quickly provided in the tub. This ensures that a heating device is sufficiently covered with water so that no damage occurs when it heats up. This ensures that textiles are cleaned quickly and effectively. The above corresponds to one function of the water-using household appliance. Another function of the water-using household appliance can be a steaming function, in which water is fed into the tub, which is then evaporated by a heating device. The steam is intended to be fed to the textiles in the drum in order to treat them. With the steaming function, however, it is important that no fluid comes into direct contact with the drum and therefore also not with the laundry.In contrast, it is necessary for the fluid to be drained to the heating element via a gap between the inner wall of the tub and the outer surface of the drum. The distance between the inner wall of the tub and the outer surface of the drum can be, for example, approximately 8 mm. The provided induction system allows the fluid to be reliably drained into this gap, preventing the laundry in the drum from being directly moistened. This can prevent the laundry from developing water spots. The induction system can be connected to the upper half of the tub. This ensures reliable moistening of the laundry in the drum during washing.Preferably, the dispensing system is connected to the tub such that the center of the dispensing system opening is at an angular distance of 20° to 45° from a horizontal line passing through the tub center. Thus, both functionalities can be efficiently provided using the dispensing system.

[0031] Preferably, the connecting flange of the tub has a baffle surface designed to reduce the kinetic energy of the fluid that has passed through the fluid guide geometry. The baffle surface of the connecting flange can be designed to correspond to the baffle surface of the outlet area of ​​the dispensing system.

[0032] According to a further aspect of the present invention, a method for supplying fluid to a tub of a water-conducting household appliance is provided, the method comprising supplying fluid through a dispensing system according to one of the above embodiments, and guiding the fluid via the fluid guidance geometry such that the fluid is guided to an inner wall of the tub and terminates there. Thus, the dispensing system can cause the fluid to reach the inner surface of the treatment chamber after leaving the dispensing system. Thus, the inner surface of the treatment chamber can be referred to as a destination for the fluid in the treatment chamber. From the inner surface of the treatment chamber, the fluid can then, driven by gravity, reach the lowest point of the treatment chamber, where, for example, a heating device is arranged. The heating device can cause the fluid to evaporate.

[0033] According to a further aspect of the present invention, a use of the above-mentioned dispenser system is provided in a water-conducting household appliance. In particular, the water-conducting household appliance is a washing machine or a washer-dryer.

[0034] The advantages and effects mentioned in connection with the device also apply analogously to the method, and vice versa. Individual features can be combined with other features or other embodiments to form new embodiments. The advantages and effects of the features then also apply to the new embodiments.

[0035] In the following, the invention is described in detail using embodiments with reference to the attached figures.

[0036] In the figures shows: Fig. 1 a schematic view of a flushing system according to an embodiment of the present invention, Fig. 2a schematic and perspective view of a part of a dispensing system according to a further embodiment of the present invention, Fig. 3 a cross-section of a part of a dispenser system according to an embodiment of the present invention, and Fig. 4 a schematic and perspective view of a water-conducting household appliance according to an embodiment of the present invention.

[0037] Figure 1is a schematic side view of a dispensing system 1 according to an embodiment of the present invention. The dispensing system 1 is formed from a hose main body 4, an outlet region 5, and a siphon 13. A fluid can flow through the dispensing system 1 from an upstream end 2 to a downstream end 3. In the order from the upstream end 2, the fluid first flows through the siphon 13, then the hose main body 4, and finally the outlet region 5. The dispensing system 1 is arranged or can be arranged in a water-conducting household appliance 100 between a water supply and a treatment chamber 101. The fluid can flow through the dispensing system 1 in a main flow direction from the upstream end 2 to the downstream end 3. The outlet region 5, which is arranged at the downstream end 3 of the induction system 1, has an opening 6 through which the fluid can leave the induction system 1.The opening 6 lies in an outlet plane 8. Furthermore, the induction system 1 has a fluid guide geometry 7 that is designed to guide the fluid. In the present embodiment, the fluid guide geometry 7 is a baffle-like structure that blocks part of the outflow cross-section through the induction system 1. In other words, fluid flowing in the main flow direction from the upstream end 2 to the downstream end 3 of the induction system 1 must flow over the fluid guide geometry 7. The fluid can be guided through the fluid guide geometry 7. In the present embodiment, the fluid guide geometry has two incisions through which the fluid can pass. This allows the fluid flow to be concentrated downstream of the fluid guide geometry 7. Furthermore, the fluid guide geometry 7 is arranged upstream of the outlet plane 8 in the induction system 1. Thus, the fluid guide geometry 7 is spaced from the opening 6 or the outlet plane 8.If the fluid flows over the fluid guidance geometry 7, it describes an arc shape (i.e. a jet arc). In other words, the shape of the fluid flowing over the fluid guidance geometry 7 can be described as a jet arc. In other words, when flowing over an object in the gravity flow, the fluid cannot directly change its flow direction (e.g., change from a horizontal flow direction to a vertical flow direction), but the change in direction is described successively, i.e., in the form of a jet arc. Because the fluid guidance geometry 7 is arranged upstream of the outlet plane 8, the jet arc can be formed relative to the induction system 1 such that the fluid immediately downstream of the outlet plane 8 has already assumed the vertical flow direction or is at least already significantly deflected.This ensures that the fluid has the desired flow direction immediately after leaving the induction system 1.

[0038] In summary, by arranging the fluid guidance geometry 7 upstream of the outlet plane 8, the jet arc described by the fluid upon leaving the fluid guidance geometry can be shifted by the amount of the offset of the fluid guidance geometry relative to the outlet plane 8. Furthermore, with a sufficiently large offset of the fluid guidance geometry 7 relative to the outlet plane 8, the jet arc of the fluid can be arranged such that the fluid is guided onto an impact surface 12 of the induction system 1 after leaving the fluid guidance geometry 7. This can reduce the flow velocity of the fluid and, due to the resulting turbulence, reduce the kinetic energy of the fluid. The fluid can thus leave the induction system 1 at a lower flow velocity and form a very flat jet arc upon running off the impact surface 12.This can also cause the fluid to change its direction immediately downstream of the outlet plane 8 of the dispensing system 1. For example, the fluid can be directed to an inner surface of the tub in a targeted manner to drain away there.

[0039] Furthermore, the dispensing system 1 has a bellows region 14 designed to compensate for changes in length between the upstream end 2 and the downstream end 3 of the dispensing system 1. Thus, the dispensing system 1 can be attached or attachable to a stationary element (e.g., a dispensing bowl) with its upstream end 2 and attached or attachable to an oscillating system (e.g., a tub) with its downstream end 3.

[0040] Figure 2is a schematic and perspective view of a part of a dispenser system 1 according to another embodiment of the present invention. The dispenser system 1 of the present embodiment is similar to that shown in Figure 1illustrated induction system 1 with the difference that the fluid guide geometry 7 has a different design. In the present embodiment, the fluid guide geometry 7 does not have a baffle-like structure, but is realized by an overflow region with guide lips 11 extending in the flow direction. The fluid guide geometry 7 also has an overflow region 9 over which the fluid flows. Furthermore, the fluid guide geometry has a separation edge 10 from which the fluid drips. In other words, the fluid leaves the fluid guide geometry 7 after passing the separation edge 10. The separation edge 10 can be part of the overflow region 9. The separation edge 10 can define the most downstream point of the overflow region 9. In the present embodiment, the fluid guide geometry 7 is also spaced from the outlet plane 8 in the direction of the upstream end 2 of the induction system 1.More precisely, the separation edge 10 is spaced from the outlet plane 8. Thus, the same effects as in connection with the in . Figure 1 shown embodiment.

[0041] Furthermore, Figure 2 A receiving area 13 is shown, with which the flushing system 1 can be attached to a flange of a treatment chamber 101. The receiving area 13 is an inner surface of the outlet area 5.

[0042] Figure 3 is a schematic cross-section of a part of a flushing system according to the Figure 2 illustrated embodiment. Furthermore, the rinsing system 1 with its receiving area 13 is attached to a treatment chamber 101. In Figure 3The offset between the downstream end of the fluid guide geometry 7 and the outlet plane 8 can be seen. Thus, after leaving the fluid guide geometry 7, the fluid can be reliably directed to an inner circumference of the treatment chamber 101 and discharged there. In the present embodiment, a baffle surface 103 can be formed by the treatment chamber 101. In other words, the treatment chamber 101 can have its own baffle surface 103, onto which the fluid impacts after leaving the fluid guide geometry 7. The baffle surface 103 can be formed by the inner circumference of a flange of the treatment chamber 101.

[0043] According to the invention, the induction system 1 has an impact surface 12, which the fluid that has passed through the fluid guide geometry 7 impinges on, even when the induction system 1 is attached to a treatment chamber 101. Furthermore, the fluid that has impinged on the impact surface 12 of the induction system 1 can subsequently impinge on the impact surface 103 of the treatment chamber 101. This allows an even more reliable reduction of the kinetic energy of the fluid to be achieved, whereby the fluid can be reliably deflected in a desired direction.

[0044] Figure 4is a perspective and schematic view of a laundry treatment appliance 100 as an example of a water-conducting household appliance. The laundry treatment appliance 100 has a drum 102, which is rotatably mounted in the tub 101. A dispensing system 1 is arranged in the laundry treatment appliance 100. The laundry treatment appliance 100 has the functionality of washing textiles accommodated in the drum 102. In addition, the laundry treatment appliance 100 has the functionality of steaming laundry. For the washing functionality, the water flow within the laundry treatment appliance 100 is designed such that at least two valves are provided, one each for the pre-wash and main wash, which control the media conditions (water line pressure, volume flow, etc.) external to the laundry treatment appliance 100.) almost unhindered into the interior of the laundry treatment appliance if the activated washing program of the washing functionality provides for it. The water or fluid reaches the actual process chamber, the oscillating system, or more precisely the tub and the laundry drum, via the water-carrying devices downstream of the valves (inlet hoses, dispenser tray, dispenser hose). The relatively high volume flow of the water or fluid thus transferred (approx. 10 l per minute), in conjunction with the geometric design of the components involved, enables rapid moistening of the laundry in the drum 102 and a sufficiently high water level in a heating compartment of the tub. This results in rapid and effective cleaning of the textiles. The functionality of steaming the laundry is intended to provide the user with the option of preparing clean, dry clothing for easier ironing through a suitable steam treatment.This can be achieved by providing a targeted, slight and even moistening of the textiles in the drum 102 by steaming, with simultaneous drum movement. This moistening objective therefore contradicts the above-described washing functionality of the water-conducting household appliance 100. More precisely, the objective of the washing functionality is rapid moistening of the laundry to saturation. The level of moistening for a noticeable reduction in subsequent ironing effort is approximately 3% to 13% water content (mass percentage compared to dry textiles), specifically approximately 6% to 9%. A water content of 2.5% to 5% has proven particularly advantageous, with even heavily wrinkled textiles being very easy to iron. Together with the introduction of moisture, the temperature in the textile is advantageously raised to 30° to 60°, specifically to 40° to 50°.This can make the dry, more or less wrinkled fibers of the fabric soft and supple. Subsequent ironing is less laborious, and the result is better in a shorter time. For some textiles of appropriate quality (especially easy-iron shirts), the wrinkle reduction achieved by this treatment is sufficient, so the shirt can be worn immediately without ironing after a brief airing on a hanger.

[0045] By providing the dispensing system 1 in the water-conducting household appliance 100, both functionalities can be provided without major structural changes. More specifically, after flowing through the dispensing tray complex, the fluid can flow into the dispensing system 1. This leaves the fluid and flows into the treatment chamber (into the tub 101). If the fluid is passed through the pre-wash or main wash valve at a volume flow of approximately 10 l per minute, it leaves the dispensing system 1 at a high flow velocity and strikes the perforated drum 102, enters through the perforations into an interior of the drum 102, and directly moistens the textiles there. Excess fluid flows downwards from the drum by gravity into the tub and into a heating device provided there.

[0046] During the steaming function, a lower volume flow of fluid, approximately 0.5 l per minute, is supplied to the dispensing system 1 from the dispensing bowl complex. Due to the water conduction geometry 7 described above, the lower volume flow prevents the water from reaching the drum 102 directly and thus directly moistening the dry laundry contained therein. The distance between the outlet plane 8 and the outer circumference of the drum 102 is approximately 8 mm. Due to the fluid conduction geometry 7 in the outlet area 5 of the dispensing system 1, the fluid is redirected such that it reaches the space between the inner surface of the tub 101 and the outer surface of the drum 102 and is drained there. The fluid thus drained can be guided to the lowest point of the tub 101 without coming into contact with the laundry in the drum 102 and there, for example, fed to a heating device to be evaporated.The best results are achieved in embodiments in which the water guide geometry 7 is offset in a range of 3 mm to 5 mm from the outlet plane 8 towards the upstream end 2 of the induction system 1.

[0047] This reliably prevents water stains from forming on laundry when the water-based household appliance is equipped with a steaming function. Furthermore, by providing the dispensing system 1, a reliable steaming function can be realized with only very minor modifications to the water-based household appliance. List of reference symbols

[0048] 1Induction system 2Upstream end 3Downstream end 4Hose main body 5Outlet area 6Opening 7Fluid guide geometry 8Outlet plane 9Overflow area 10Tear-off edge 11Guide lip 12Baffle surface 13Receiving area 14Bellows area 100Water-conducting household appliance 101Soap container 102Drum 103Baffle surface

Claims

1. Flushing system (1) for a water-conducting household appliance, wherein the flushing system (1) is configured to be flown through by a fluid from an upstream end (2) to a downstream end (3) in a main flow direction, wherein the flushing system (1) comprises: a main tube body (4), an outlet region (5) which is arranged at the downstream end of the main tube body (4), and an opening (6) for discharging the fluid, wherein the opening (6) extends in an outlet plane (8), and a fluid guiding geometry (7) which is configured to guide the fluid, wherein the fluid guiding geometry (7) is arranged in the outlet region (5) of the flushing system (1) such that it is located downstream of the outlet plane (8), characterised in that the outlet region (5) has a deflector surface (12) arranged between the outlet plane (8) and the fluid guiding geometry (7), which is configured to reduce a kinetic energy of the fluid which has passed the fluid guiding geometry (7).

2. Flushing system (1) according to claim 1, wherein the fluid guiding geometry (7) has an overflowable region (9), which is arranged essentially orthogonally to the main flow direction of the fluid through the flushing system (1).

3. Flushing system (1) according to claim 2, wherein the fluid guiding geometry (7) has the overflowable region (9) on its downstream side, wherein the overflowable region (9) has a radius which is configured to conduct the fluid along the overflowable region (9) during operation of the flushing system (1).

4. Flushing system (1) according to claim 1, wherein the fluid guiding geometry (7) has an overflowable region (9) on its downstream side, wherein the overflowable region (9) has a radius which is configured to conduct the fluid along the overflowable region (9) during operation of the flushing system (1).

5. Flushing system (1) according to one of the preceding claims, wherein a tear-off edge (10) of the fluid guiding geometry (7) is distanced from the outlet plane (8) by 0.2 mm to 5 mm, preferably 1 mm to 4 mm, more preferably 2.5 mm to 3 mm.

6. Flushing system (1) according to one of the preceding claims, wherein a drain cross-section available to the fluid at the point of the fluid guiding geometry (7) is smaller than the drain cross-section at the point of the opening (6) by at least 10%, more preferably at least 20%.

7. Flushing system (1) according to one of the preceding claims, wherein the fluid guiding geometry (7) has at least one guiding lip (11) which extends essentially along the main flow direction and is configured to guide the fluid.

8. Flushing system (1) according to one of the preceding claims, wherein the outlet region (5) has a receiving region (13) which is configured to receive a flange of a treatment space (101).

9. Water-conducting household appliance (100), comprising a flushing system (1) according to one of the preceding claims, an essentially cylindrical outer tub (101) with a connecting flange, to which the flushing system (1) is or can be connected, and a drum (102) for receiving laundry to be treated, which is arranged in a rotatable manner in the outer tub (101), wherein the flushing system (1) is or can be connected in the upper half of the outer tub (101).

10. Water-conducting household appliance (100) according to claim 9, wherein the connecting flange of the outer tub has a deflector surface (103), which is configured to reduce a kinetic energy of the fluid which has passed the fluid guiding geometry (7).

11. Method for feeding fluid into an outer tub (101) of a water-conducting household appliance (100), wherein the method comprises: feeding fluid through a flushing system (1) according to one of claims 1 to 8 and conducting the fluid via the fluid guiding geometry (7), so that the fluid is guided to an inner wall of the outer tub (101), in order to drain off there.