Water-guiding household appliance and method for controlling a water-guiding household appliance

Abstract

A water-guiding household appliance (1) is proposed. The water-guiding household appliance (1) comprises a housing (2) having a treatment chamber (4) accommodated in the housing, a water supply device (3) designed to supply water to the treatment chamber (4), a shut-off device (5) designed to shut off the water supply, at least one measuring device (6) designed to detect a liquid outside the housing (2) and to output a signal, and a control unit (7) designed to control the shut-off device (5) and / or to output a notification on the basis of the signal of the measuring device (6). Furthermore, a method for controlling a water-guiding household appliance (1) is proposed.

Description

Technical Field

[0001] This invention relates to a water-conducting household appliance and a method for controlling the water-conducting household appliance. Background Technology

[0002] It is known that leak-proof systems are incorporated into water-conducting household appliances such as washing machines or dishwashers. These appliances typically feature a closed base with a partial water collection trough at its lowest point. A float switch is located within this trough. If the interior of the appliance becomes leak-proof and water enters the base, the water causes the float switch's float to rise and actuate a switch, thereby shutting off the leak-proof system coupled to the switch at the appliance's inlet. The water supply is then permanently interrupted until the float switch is raised. In this system, the base is designed such that no water can leave the appliance's housing.

[0003] Water in the base area can be caused by a lack of sealing within the water-conducting assembly of the water-conducting household appliance and / or a lack of sealing within the internal water delivery pipe.

[0004] Using the above design, currently known household appliances can only detect leaks inside the appliance. In contrast, these systems are not designed to identify water leaks outside the appliance and then trigger an appropriate response. Summary of the Invention

[0005] Therefore, the object of the present invention is to provide a water-conducting household appliance that can detect liquid outside the system boundary of the water-conducting household appliance and thereby trigger additional actions.

[0006] This task is solved by a water-guiding household appliance having the features of the present invention and a water-guiding household appliance having the features of the present invention.

[0007] According to one aspect of the present invention, a water-conducting household appliance is provided, comprising: a housing having a treatment chamber contained therein; a water supply device designed to supply water to the treatment chamber; a shut-off device designed to cut off the water supply; at least one measuring device designed to detect liquid outside the housing and output a signal; and a control unit designed to control the shut-off device and / or output a notification based on the signal from the measuring device.

[0008] Compared to existing technologies, the present invention provides the advantage of controlling existing shut-off devices based not only on liquid detected inside the water-conducting household appliance but also on liquid detected outside the appliance. This shut-off device can be, for example, a leak-proof system located at the water supply device supplying water to the appliance. In other words, the shut-off device can be controlled based on information about the presence of liquid both inside and outside the appliance.

[0009] For example, when liquid flows from the opening of a water-conducting household appliance and flows onto the floor outside the casing, liquid will appear outside the casing of the appliance. Additionally, liquid can leak from the water supply system, particularly between the connectors and shut-off devices. For example, a failure in the sealing element (O-ring, flat gasket, etc.) or intermediate hose between the water connector (e.g., a faucet) and the shut-off device can allow water to leak unimpeded. This liquid will be detected by a measuring device, and the control unit will accordingly output a notification, allowing the user to manually shut off the faucet. Alternatively, the control unit can also be designed to interrupt the entire water supply in this situation. Within the framework of home automation, it is also possible for the control unit to control a central shut-off valve and thus interrupt the water supply.

[0010] A water-conducting household appliance can be a laundry detergent, dishwasher, or water-conducting kitchen appliance. Here, the housing can be the system boundary between the interior space of the water-conducting household appliance and the space outside the housing. The water-conducting household appliance may have an operating position in which it typically operates. In the following text, "above" and "below" always refer to the operating position of the water-conducting household appliance. A closed base can be provided inside the housing. A local low point can be provided in this base, where a sensor device monitors the presence of liquid. Thus, it is possible to monitor whether liquid accumulates in the base inside the water-conducting household appliance.

[0011] In water-conducting household appliances, the treatment chamber may be an alkali container in the case of a laundry detergent or a washing space for dishes in the case of a dishwasher. Alternatively, the treatment chamber may be a boiler in the water-conducting household appliance, in which the supplied water is heated.

[0012] A water supply device can be, for example, a flexible hose leading from a faucet or wall fitting to a water-conducting household appliance. Alternatively, the water supply device can also be a rigid pipe. The water supply device can consist of a flexible inner hose encased by a flexible outer hose. Here, the outer hose may concentrically encase the inner hose. The outer hose may be watertight, so that it can completely capture water in the event of a leak in the inner hose and, for example, deliver that water to the interior of the housing.

[0013] The shut-off device can be a leak-proof system with a solenoid valve that can close the water supply. The shut-off device can be installed within the water supply system. Preferably, the shut-off device is directly mounted on a wall connector (e.g., a faucet), and the water supply extends from the shut-off device into the housing of the water-conducting household appliance. This ensures that further water flow to the water supply system can be prevented by operating the shut-off device.

[0014] The inner hose of the water supply device can be connected to other water-guiding components inside the water-guiding household appliance. Conversely, the outer hose of the water supply device can be connected to the inner space of the housing, allowing water to flow directly into the housing from the outer hose. This ensures that in the event of a leak in the inner hose, water from the leak point can be delivered through the outer hose to the base in the housing, where a sensor can detect the water and accordingly control the shut-off device to shut off the water supply.

[0015] The measuring device may, for example, include a floating switch inside the housing. This measuring device can detect liquid outside the housing by supplying the liquid outside the housing to a liquid sensor inside the housing. Alternatively, the measuring device may have a liquid sensor outside the housing, which can therefore directly detect the liquid outside the housing. That is, the measuring device may have at least one liquid sensor to determine the presence of liquid outside the housing. According to another aspect of the invention, the measuring device has at least two liquid sensors, one arranged inside the housing and one arranged outside the housing. This allows for reliable determination of whether the liquid flow is due to a leak inside or outside the housing. Accordingly, a notification or control signal can be output.

[0016] The control unit may include a processor that can receive and process signals and output control commands. For example, a control unit already installed in the household appliance can be used as the control unit.

[0017] The humidity sensor can communicate with the control unit via cable or radio. For example, the measuring device may include a humidity sensor located outside the housing and connected to the control unit via wireless communication (e.g., WLAN, NFC, Bluetooth, etc.). Here, the measuring device may have a power source, such as a battery, to power the humidity sensor. This expands the functionality of any potential leak-proof system in the water-conducting household appliance (which can detect leaks inside the appliance) by allowing the measuring device to also detect the presence of liquid outside the housing. Regardless of where the liquid is detected, the control unit can actively control the shut-off device and / or output a notification after liquid detection is complete. This notification can be output to the user, for example, via WLAN or a smart home application. Thus, the user can receive information on their smartphone, for example, that the measuring device has detected liquid. Furthermore, this information may include a description of where the liquid was detected (i.e., either inside or outside the housing). This allows the user to take appropriate countermeasures. Simultaneously or alternatively, the control unit can control the shut-off device to prevent further water from being supplied to the water-conducting household appliance.

[0018] Therefore, the present invention provides the possibility of providing comprehensive protection against unwanted leaks in water-conducting household appliances by attaching a measuring device to a known leak-proof system. This is achieved by not only placing a monitoring sensor inside the housing, but also incorporating the surrounding environment of the water-conducting household appliance into the monitoring. This can be achieved either by placing an additional humidity sensor outside the housing and connecting it directly to the control unit of the water-conducting household appliance, or by directing water leaking outside the appliance to a humidity sensor located inside the appliance. This ensures that the water-conducting household appliance can operate without user supervision, as the user can be immediately notified in the event of damage and / or potential damage can be prevented and / or minimized through automatic control of shut-off devices.

[0019] Preferably, the measuring device includes at least one conductivity sensor. In the prior art, it is common practice to use a floating sensor or similar device to detect liquid inside the housing of a water-conducting household appliance. However, this requires a structural design that causes the water level to rise accordingly and the floating switch of the floating sensor to move accordingly so that the sensor reacts. This approach is disadvantageous when such a structural design is not possible and / or when the amount of water present is so small that the response sensitivity of such a floating sensor is insufficient to reliably detect the presence of liquid.

[0020] In contrast, conductivity sensors can detect even minute amounts of liquid without any problems. This conductivity sensor can include two electrodes to which a defined voltage is applied. Therefore, the conductivity sensor can be designed to continuously measure the resistance between the two electrodes. If the two electrodes are neither directly nor indirectly connected, the resistance is approximately infinitely high. Conversely, if the two electrodes are electrically connected, the resistance drops rapidly. This occurs, for example, when the two electrodes are in contact with the same body of water. Therefore, the conductivity sensor can detect changes in conductivity and, based on this, determine the presence of liquid at the electrodes of the conductivity sensor.

[0021] Preferably, the two electrodes are at least 4 cm apart. This ensures that false alarms are not triggered, which can occur if the two electrodes are too close together and connected by damp dust, lint, or similar contaminants. In another preferred embodiment, the two electrodes are at least 2 cm apart. This is particularly advantageous when used in laundry appliances and / or dishwashers, as liquid can be detected at an earlier stage (i.e., even in the presence of relatively small amounts of liquid). According to another aspect of the invention, the two electrodes are approximately 1 cm apart. Therefore, the conductivity sensor does not need to be placed in a specially designed location, ensuring that a certain liquid depth can be quickly established even in the presence of small amounts of liquid to ensure a rapid response from the sensor. In contrast, a humidity sensor with electrodes approximately 1 cm apart can be placed in any location, as it can already detect minute water levels.

[0022] In addition, this distance also ensures sufficient protection against accidental triggering: for example, when a wet laundry is removed from the drum in the case of a laundry appliance and some droplets fall onto the floor.

[0023] Preferably, the housing has at least one opening and the measuring device includes at least one capture tank disposed on the housing, such that liquid flowing out from the at least one opening can be captured by the at least one capture tank.

[0024] The opening can be, for example, an opening in a water-conducting household appliance that establishes a connection between the exterior and interior of the housing via a system boundary. Thus, in the case of a laundry detergent appliance, this opening can be, for example, a detergent drawer and / or an entrance to the treatment chamber. Furthermore, the opening can be the lid of a dishwasher. The opening can be any opening in a water-conducting household appliance that overcomes the system boundary between the interior and exterior of the housing.

[0025] By means of a capture trough arranged below the opening, liquid flowing from the opening can be captured by the passive expansion of the water-conducting household appliance, so that the liquid does not flow to the ground outside the water-conducting household appliance and cause damage there.

[0026] By capturing the liquid flowing from the opening, damage caused by the liquid (e.g., to furniture or real estate, or the like) can be prevented. The measuring device can identify the liquid captured in the capture tank and control the shut-off device and / or output a notification as described above.

[0027] Here, the trapping channel can extend across the entire width of the water-conducting household appliance, for example, on its base. This ensures that liquid flowing down the casing of the appliance can also be reliably trapped. In this case, a single trapping channel can be provided on the appliance. Therefore, the appearance of the appliance is not affected by the trapping channel, increasing design freedom.

[0028] Preferably, the at least one capture tank is designed, and in particular, tilted so that the captured liquid can be guided to the collection point and the measuring device is preferably designed to detect the liquid at the collection point.

[0029] The trapping trough can have a U-shaped or V-shaped cross-section. This allows for reliable capture of liquid within the trapping trough. Furthermore, the trapping trough can be inclined to reliably drain the captured liquid. The collection point can be designed such that the cross-section of the trapping trough widens there. This allows a defined amount of liquid to be collected at the collection point without overflowing from the trapping trough and flowing onto the floor or furniture. Therefore, during the time between the initial liquid outflow and the stoppage by the shut-off device, the outflowing liquid can be reliably captured and stored (i.e., in the trapping trough and / or collection point) to prevent potential damage. Preferably, the trapping trough has a capacity greater than 100 ml. This allows a sufficient time period to pass before the shut-off device is activated without any liquid flowing out of the trapping trough. According to another aspect of the invention, the trapping trough has a capacity greater than 200 ml. In this case, even in the event of a large leak, water can be sufficiently blocked by the trapping trough and / or collection point.

[0030] Preferably, at least two openings are provided on the housing and each opening is preferably configured with a capture slot, the opening having a collection point configured for each capture slot or a common collection point.

[0031] In other words, each opening in the housing of a water-conducting household appliance can have its own and separate capture tank. Each opening in the housing of the water-conducting household appliance can also have its own collection point. Thus, in addition to detecting the liquid at the collection point, it is possible to determine which opening the liquid is flowing from. This information can be output to the user, for example, by the control unit. Alternatively, different capture tanks can also have a single collection point to which liquid from all capture tanks can be delivered. Thus, the housing can be designed to be more compact because the collection point requires very little space.

[0032] Preferably, the at least one collection point is arranged inside the housing.

[0033] Therefore, the liquid captured by the at least one capture tank can be transferred from the outside of the housing to the inside of the housing through the system boundary. For this purpose, the at least one capture tank can extend into the interior space of the housing through an opening in the housing. The liquid can then be delivered, for example, to a humidity sensor located there within the interior space of the housing. In particular, liquid captured outside the housing can be delivered to the base tray and especially to a localized collection tank. Thus, this water-guiding household appliance can utilize an existing humidity sensor by means of passive extension to detect the presence of liquid outside the housing. Furthermore, multiple collection points can also be provided in the housing. For this purpose, each capture tank extends into the housing towards a corresponding collection point. Thus, as described above, the advantage provided is that it is possible to determine from which opening the liquid flows out, because each capture tank can correspond to a specific opening.

[0034] Preferably, the measuring device includes a liquid sensor, particularly a conductivity sensor, and the liquid sensor is preferably arranged at the at least one collection point so as to detect the liquid at the at least one collection point.

[0035] Thus, each capture tank can have its own liquid sensor, allowing the presence of liquid to be determined individually for each tank. For example, the tank can be designed in a bag shape, and the collection point can be located at the lowest point of the capture tank. The electrodes of the conductivity sensor can be arranged on the side of the capture tank. Here, the electrodes are preferably arranged above the level of the lowest point of the capture tank, so that the conductivity sensor is activated from a determined water level in the capture tank or collection point. This prevents false triggering, as the conductivity sensor is only activated when the water level in the capture tank or collection point rises above a predetermined level. Preferably, the electrodes of the conductivity sensor are located at the lower third of the total height of the collection point or capture tank. In this case, particularly advantageous operation is achieved because the sensor can be activated sufficiently early before the collection point or capture tank overflows, and false triggering is still avoided.

[0036] Preferably, the measuring device includes a ground humidity sensor, particularly a conductivity sensor, wherein the ground humidity sensor is preferably arranged below the housing during the operation of the water-conducting household appliance.

[0037] Preferably, the humidity sensor is in contact with the ground beneath the water-conducting household appliance. Specifically, the electrodes of the conductivity sensor are in contact with the ground. Preferably, the distance between these electrodes is at least 2 cm. This avoids false triggering. These electrodes can be pre-tensioned using a tensioning device so that they reliably contact the ground. Thus, these electrodes can reliably detect the presence of liquid beneath the housing. According to another aspect of the invention, the conductive legs of the water-conducting household appliance are used as electrodes for the conductivity sensor. Here, for example, a voltage is applied to the legs of the water-conducting household appliance, thereby reliably detecting the presence of moisture or liquid beneath the housing of the water-conducting household appliance. Preferably, a voltage is applied to at least three legs of the water-conducting household appliance so that even small surface liquid leaks can be detected. Here, these legs are designed such that they include conductive elements in contact with the ground.

[0038] Preferably, the measuring device includes a humidity sensor designed as a conductivity sensor with at least two electrodes, wherein the electrodes are preferably spaced at least 3 cm, preferably at least 2 cm apart.

[0039] Within this range, sufficient sensitivity for detecting liquids can be achieved without increasing false triggering.

[0040] According to another aspect of the present invention, a method for controlling a water-conducting household appliance is provided, wherein the method includes the following steps: providing one of the water-conducting household appliances as described above; detecting liquid outside the housing and controlling a shut-off device to cut off the water supply to the water-conducting household appliance, and / or outputting a notification that liquid is present outside the housing.

[0041] The advantages and design of the device mentioned can also be applied to this method in a similar way.

[0042] A single aspect or feature of an implementation can be combined with other aspects or features of other implementations to form a new implementation. Attached Figure Description

[0043] Preferred embodiments of the present invention will now be described with reference to the accompanying drawings.

[0044] As shown in the attached figure:

[0045] Figure 1 According to existing technology, water-conducting household appliances,

[0046] Figure 2According to existing technology, water-conducting household appliances,

[0047] Figure 3 A water-guiding household appliance according to one embodiment of the present invention,

[0048] Figure 4 According to another embodiment of the present invention, a water-guiding household appliance,

[0049] Figure 5 According to another embodiment of the present invention, a water-guiding household appliance,

[0050] Figure 6 A water-guiding household appliance according to another embodiment of the present invention. Detailed Implementation

[0051] Figure 1 A schematic and perspective view of a laundry detergent appliance 100 disclosed in the prior art is shown. The laundry detergent appliance 100 has a treatment chamber 40 for treating laundry. Furthermore, the laundry detergent appliance 100 has a housing 20 defining an internal space. A measuring device 60 is disposed in this internal space, which can detect water present inside the laundry detergent appliance 100. Furthermore, the laundry detergent appliance 100 is connected to a water source via a water supply device 30. A shut-off device 50 is disposed in the water supply device 30. If the measuring device 60 detects liquid, the shut-off device 50 is controlled such that it shuts off the water supply to the water-conducting household appliance.

[0052] Figure 2 Show Figure 1A schematic front view of a laundry detergent appliance 100. The laundry detergent appliance 100 also has a detergent drawer 90. Furthermore, the laundry detergent appliance 100 has an opening in the form of a porthole as an entrance to the treatment chamber. Both the detergent drawer 90 and the porthole are openings in the system boundary of the housing 20. Additionally, known laundry detergent appliances have inlets to the lint filter of the detergent appliance's lye pump or other mechanisms. All these openings are closable and, in an emergency, act as a watertight barrier between the interior space of the laundry detergent appliance 100 and its exterior. However, if water (i.e., liquid) still leaks from at least one of these openings due to misoperation, wear, and / or other reasons, this liquid 8 flows down the housing 20 to the exterior of the laundry detergent appliance. Even if the liquid leakage is only in the form of droplets, a large amount of liquid 8 will accumulate below the laundry detergent appliance 100. This liquid can cause damage to property and furniture. Here, liquid present on the exterior cannot be detected by a measuring device 60 arranged inside the laundry detergent appliance. Therefore, the operation of the laundry processor 100 continues unnoticed, and damage increases as a result.

[0053] Figure 3 A schematic front view of a laundry detergent appliance 1 according to an embodiment of the present invention is shown. This laundry detergent appliance 1 should eliminate the aforementioned disadvantages of the prior art. The laundry detergent appliance 1 of the present invention has the aforementioned features of known laundry detergent appliances. In particular, the laundry detergent appliance 1 has a housing 2 that defines an inner space therein. A measuring device 6 is disposed in this inner space. The measuring device 6 is located at the deepest point of the closed base. Furthermore, the laundry detergent appliance 1 has a detergent drawer 9 and a porthole 10. The detergent drawer and porthole form a transition between the exterior and interior of the housing 2. Furthermore, the laundry detergent appliance 1 has a control unit 7 designed to receive, process, and output control signals. Furthermore, the laundry detergent appliance 1 has a shut-off device (not shown) corresponding to a shut-off device 50 in the prior art and arranged in a water supply line 3. In addition to the porthole and the detergent drawer, the laundry detergent appliance 1 also has other openings, which are not shown in the drawings.

[0054] Compared to existing technologies, the laundry detergent appliance 1 of this embodiment has two capture slots 11, each configured to an opening. Therefore, one capture slot 11 is configured for the detergent drawer 9 and another for the porthole 10. If liquid 8 leaks from the detergent drawer 9 and / or the porthole 10, the liquid is captured in the capture slot 11 and guided to the collection point 12. In this embodiment, the liquid 8 is guided from the collection point 12 into the interior of the housing 2 and there to the base. This causes the liquid level inside the housing 2 to rise and raise the float of the measuring device 6, which is designed as a float switch in this embodiment. A signal is then sent to the control unit 7, which then controls the shut-off device to further interrupt the water supply to the water-conducting household appliance 1. In all the figures, the signal path from the measuring device to the control unit 7 is schematically indicated by arrows. In another embodiment, not shown, the control unit 7 sends an instruction (e.g., an alarm) to the user, preferably via the Internet to a smart device. Preferably, the control unit sends a signal and shuts off the water supply.

[0055] Therefore, in this embodiment, water appearing outside the housing 2 will also be detected, and the shut-off device 5 and / or output signal will be automatically operated based on the detection result to prevent further water supply to the laundry detergent 1.

[0056] Figure 4 A schematic front view of a water-guiding household appliance 1 according to another embodiment of the present invention is shown. This embodiment of the water-guiding household appliance 1 substantially corresponds to... Figure 3 The difference in this embodiment of the water-guiding household appliance is that it has only one capture channel 11. In this embodiment, the capture channel 11 extends across the entire width of the water-guiding household appliance 1 (that is, across the entire width of the housing 2). The capture channel 11 is arranged near the base below the lowest opening. This ensures that all liquid 8 flowing from one of these openings is captured by the capture channel 11. If liquid 8 flows out, it is captured by the capture channel 11 and transported to the collection point 12. From there, the liquid 8 returns to the interior of the housing 2, allowing the measuring device 6 disposed within the housing 2 to detect the liquid 8.

[0057] Therefore, existing leak-proof systems can be passively extended and upgraded into comprehensive leak-proof systems. Because in the event of unintentional leakage from a detergent drawer or porthole, water adheres to the front of the machine and flows along it to the property floor, a trap can be integrated into the base area of ​​the front of the machine, extending across the entire front. This can be implemented very aesthetically pleasingly in terms of design. However, some localized traps can also be installed (see...). Figure 3One is located in the detergent drawer area and the other in the porthole area (see description above). They can also be inconspicuously integrated into existing recesses on the front of the appliance. All the capture slots share the common feature that they can be designed at an angle and have an opening at their deepest point leading to the interior of the machine, specifically, for example, through a drain pipe towards the bottom. The collected water activates the existing internal leak-proof system.

[0058] In this embodiment, small amounts of liquid (e.g., the amount that flows out when the laundry is removed from the washing drum) are not detected and therefore do not trigger false alarms. Small amounts of water evaporate in the trap and / or do not effectively flow into the laundry appliance 1. Only harmful leaks are detected.

[0059] Figure 5 A schematic front view of a water-guiding household appliance 1 according to another embodiment of the present invention is shown. This embodiment of the water-guiding household appliance 1 substantially corresponds to the water-guiding household appliance of the above-described embodiment, except that the measuring device has two conductivity sensors 6, one of which is disposed in one of the collection tanks 11. More specifically, one collection tank 11 is arranged below the treatment agent drawer 9 and another collection tank 11 is arranged below the porthole 10. Here, each collection tank 11 has its own liquid sensor 6 configured for it. The corresponding detection results of the liquid sensor 6 are provided to the control unit 7. The control unit 7 can thus identify where the liquid 8 is flowing out. The control unit 7 can send this information to the user. Furthermore, this information can also be stored internally so that it can be used later in damage tracking to specifically eliminate the damage.

[0060] Figure 6 A schematic diagram is shown according to another embodiment of the present invention. The laundry processor of this embodiment has 1 and Figure 5 The difference in the laundry detergent appliance 1 shown is that another conductivity sensor 6 is arranged below the housing 2. Specifically, this conductivity sensor 6 has two electrodes that contact the ground where the laundry detergent appliance 1 is located. Here, the electrodes are pressed into the ground by a pre-tightening device to ensure reliable contact between the electrodes and the ground. This further enhances safety by allowing the detection of liquids that reach the ground below the laundry detergent appliance 11, even if they are not captured by the capture tank 11 and detected by the measuring device 6 located there, but instead reach the ground in other ways.

[0061] In another embodiment (not shown), a wired conductivity sensor is placed near the laundry appliance 1 as part of the measuring device 6. This conductivity sensor (e.g., a conductivity value sensor) can be connected to the control unit 7 via cable or wirelessly. This allows for the detection of liquid flowing out in front of the shut-off device and flowing towards or falling onto the ground in the surrounding environment of the laundry appliance 1. The described conductivity sensor can also be a battery-powered, autonomous liquid sensor, which can be supplied with the laundry appliance. It can be wirelessly connected to or connected to the laundry appliance 1, allowing the control unit 7 to actively control the shut-off device 5 based on the detection results of this external conductivity sensor.

[0062] List of reference numerals

[0063] 1. Water-conducting household appliances

[0064] 2. Shell

[0065] 3. Water supply device

[0066] 4 Processing Room

[0067] 5. Cut-off device

[0068] 6. Measuring device

[0069] 7 Control Unit

[0070] 8 Liquids

[0071] 9. Treatment agent drawer

[0072] 10 Portholes

[0073] 11 Capture Slots

[0074] 12 Collection Points.

Claims

1. A water-guiding household appliance (1), comprising: A housing (2) having a processing chamber (4) housed therein; Water supply device (3), which is designed to supply water to the treatment chamber (4); Cut-off device (5), which is designed to cut off the water supply; At least one measuring device (6) with a liquid sensor, wherein the measuring device is designed to detect liquid outside the housing (2) and output a signal such that liquid outside the housing is supplied to the liquid sensor inside the housing. The housing (2) has at least two openings (9, 10) and each opening (9, 10) is configured with a collection slot (11), which has a collection point (12) configured for each collection slot (11) or a common collection point (12); and Control unit (7), which is designed to control the cut-off device (5) and / or output notifications based on signals from the measuring device (6), Each capture tank (11) has its own liquid sensor, thereby determining the presence of liquid individually for each tank.

2. The water-guiding household appliance (1) according to claim 1, wherein, The measuring device (6) includes at least one conductivity sensor.

3. The water-conducting household appliance (1) according to any one of the preceding claims. in, The housing (2) has at least one opening (9, 10); and The measuring device (6) includes at least one capture tank (11) arranged on the housing (2) so that liquid (8) flowing out from the at least one opening (9, 10) can be captured by the at least one capture tank (11).

4. The water-guiding household appliance (1) according to claim 3. in, The at least one capture tank (11) is designed such that the captured liquid (8) can be guided to the collection point (12); and The measuring device (6) is designed to detect the liquid (8) at the collection point (12).

5. The water-guiding household appliance (1) according to claim 4, wherein, The at least one collection point (12) is arranged inside the housing (2); and / or The at least one capture tank (11) is tilted so that the captured liquid (8) can be guided to the collection point (12).

6. The water-guiding household appliance (1) according to claim 4 or 5. in, The liquid sensor of the measuring device (6) is a conductivity sensor; The liquid sensor is arranged at the at least one collection point (12) so that the liquid (8) at the at least one collection point (12) can be detected.

7. The water-conducting household appliance (1) according to any one of claims 1, 2, 4, and 5 above, wherein, The measuring device (6) includes a ground humidity sensor, which is arranged below the housing (2) during the operation of the water-conducting household appliance (1).

8. The water-guiding household appliance (1) according to claim 7, wherein, The ground humidity sensor is a conductivity sensor.

9. The water-conducting household appliance (1) according to any one of claims 1, 2, 4, 5, and 8 above. in, The measuring device (6) includes a humidity sensor designed as a conductivity sensor with at least two electrodes, wherein the electrodes are spaced at least 3 cm apart.

10. The water-guiding household appliance (1) according to claim 9. in, These electrodes are spaced at least 2 cm apart.

11. A method for controlling a water-conducting household appliance (1), wherein, The method includes the following steps: - Provide a water-conducting household appliance (1) according to any one of the preceding claims; - Detect the liquid outside the housing by means of delivering the liquid outside the housing to the liquid sensor inside the housing (8). - Control the shut-off device (5) to cut off the water supply to the water-conducting household appliance (1), and / or - Output notification: Liquid (8) is present outside the housing (2).

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