Household Dishwasher and Method

Abstract

The invention relates to a household dishwasher (1) having a rinsing container (2) for receiving the items to be rinsed, a hydraulic circuit (17) for circulating fresh water and / or rinsing liquid (F) in the rinsing container (2), a pump device (16) for supplying fresh water and / or rinsing liquid (F) to the hydraulic circuit (17), and a closure (22) made of a water-soluble material which separates a part of the hydraulic circuit (17) from the pump device (16) during a one-time calibration process of the household dishwasher (1) and dissolves in fresh water and / or rinsing liquid (F) during and / or after the calibration process.

Description

Technical Field

[0001] The invention relates to a domestic dishwasher and a method for calibrating such a domestic dishwasher. Background Art

[0002] A dishwasher has a rinse container that can accommodate items to be rinsed. A spray zone can be provided in the rinse container to apply fresh water and / or a rinse liquid to the items to be rinsed. The spray zone can be configured, for example, as a spray arm rotatably mounted in or on the rinse container. Furthermore, a spray zone in the form of a so-called concentrated spray zone can be provided. Such a concentrated spray zone can be provided, for example, on a rinse receptacle that can be accommodated in the rinse container. The concentrated spray zone can be used, for example, to specifically clean heavily soiled items to be rinsed. For this purpose, the concentrated spray zone can be manually activated or deactivated using a valve.

[0003] To detect whether the manually operated intensive spray zone is enabled or disabled, the motor current of the dishwasher's circulation pump can be used. However, this requires calibrating the dishwasher during commissioning, which is performed in a defined hydraulic state. This defined hydraulic state is one in which the intensive spray zone is disabled. In other words, to commission the dishwasher, the user must manually disable the intensive spray zone. Summary of the Invention

[0004] Against this background, it is an object of the present invention to provide an improved domestic dishwasher.

[0005] Accordingly, a domestic dishwasher is proposed, comprising a rinsing container for receiving items to be rinsed, a hydraulic circuit for circulating fresh water and / or a rinsing liquid in the rinsing container, a pump device for supplying fresh water and / or the rinsing liquid to the hydraulic circuit, and a closure made of a water-soluble material. The closure separates a portion of the hydraulic circuit from the pump device during a one-time calibration process of the domestic dishwasher. The closure dissolves in the fresh water and / or the rinsing liquid during and / or after the calibration process.

[0006] By providing a shutoff, defined hydraulic conditions can be established in the hydraulic circuit. For example, the shutoff can be used to disable the intensive spray zone, such as the one described above, or any other spray zone used for calibration procedures. This means that the user does not need to take any precautions for calibration procedures or commissioning a domestic dishwasher. This simplifies the operation of the domestic dishwasher.

[0007] The rinse container is preferably square. It can be closed by means of a door that pivots against the rinse container. The rinse container can contain multiple rinse items, such as a lower basket, an upper basket, and a cutlery drawer. The rinse item receptacle can accommodate items to be rinsed, which are supplied with fresh water and / or a rinse liquid via a hydraulic circuit. "Rinse liquid" is understood herein to mean water mixed with a cleaning agent and / or dirt particles dislodged from the items to be rinsed.

[0008] Preferably, the pump device is a circulation pump for a domestic dishwasher. In particular, the pump device can be arranged on a pump sump of the rinse container. Alternatively, the pump sump is arranged at the bottom of the rinse container. "Supplying" the hydraulic circuit with fresh water and / or rinsing liquid by the pump device means in this context that the pump device pumps fresh water and / or rinsing liquid through the hydraulic circuit. The pump device can, but does not necessarily, be part of the hydraulic circuit.

[0009] A calibration process is preferably performed during commissioning of a domestic dishwasher. "Separating" a portion of the hydraulic circuit from the pump unit is understood to mean, in particular, that the closure fluidically isolates the portion of the hydraulic circuit from the pump unit. This means that the pump unit cannot pump fresh water and / or rinsing fluid into this portion of the hydraulic circuit. Preferably, the closure completely dissolves after the calibration process. However, any remaining closure can also completely dissolve during a subsequent rinsing process.

[0010] According to one embodiment, the hydraulic circuit has a plurality of spray zones, wherein the closure separates at least one of the spray zones from the pump device.

[0011] The spray device can be, for example, a spray arm mounted in or on the rinsing container. However, the spray arm can also include one or more so-called concentrated spray zones, which are arranged, for example, on the rinsing product receptacle as described above. The closure is suitable for separating the spray zone configured as a spray arm or concentrated spray zone from the pump device. The closure can also separate multiple spray zones from the pump device.

[0012] According to a further embodiment, at least one spray zone separated from the pump device by means of a closure can be switched from an activated state to a deactivated state by means of a valve.

[0013] The valve is preferably a switching valve. In particular, a "switching valve" or "on-off valve" is understood herein to mean a valve that enables a spray zone to be switched back and forth between an active state and a deactivated state without entering an intermediate state. Preferably, the valve is manually operated. Alternatively, however, the valve can also be electrically controlled. For example, the valve can be a solenoid valve.

[0014] According to another embodiment, the obturator is arranged upstream of the valve.

[0015] "Upstream" is currently understood to mean that the closure is arranged before the valve in the direction of flow of the fresh water and / or flushing liquid. This has the advantage that the closure can then be dissolved not only when the valve is open but also when it is closed. However, the closure can also be arranged downstream of the valve. In this case, the closure will only be dissolved when the valve is open and the spray zone is in its active state. "Downstream" currently means that the closure is arranged after the valve in the direction of flow of the fresh water and / or flushing liquid.

[0016] According to a further embodiment, the at least one spray zone separated from the pump device by means of a closure is an intensive spray zone.

[0017] The intensive spraying zone can also be referred to as an intensive rinsing zone. As previously described, the intensive spraying zone can be arranged, for example, on one of the rinse product receptacles. However, the intensive spraying zone can also be attached to the side wall, the top cover, or the rear wall of the rinse container. The spray arms are preferably located in a spraying zone that is not separated from the pump device by a closure. However, this is not mandatory.

[0018] According to a further embodiment, at least one spray zone separated from the pump device by means of a closure and a further spray zone are connected to the pump device by means of a common supply line.

[0019] In particular, the supply line branches off before the two spray zones. A distribution element can be provided for this purpose. Alternatively, the two spray zones can also each have a separate supply line.

[0020] According to a further embodiment, the closure is arranged between the spray zone, which is separated from the pump device by the closure, and the supply line.

[0021] That is to say that a spray zone which is not separated from the pump device by means of a closure can be further supplied with fresh water and / or flushing liquid by means of a supply line.

[0022] According to a further embodiment, the domestic dishwasher further comprises a water switch arranged downstream of the pump device for activating and deactivating the spray zone.

[0023] The water switch can preferably be controlled by means of a control unit of the domestic dishwasher. The water switch is suitable for supplying fresh water and / or rinsing liquid to one or all spray zones simultaneously. In particular, the water switch is arranged between the pump device and the spray zones.

[0024] According to a further embodiment, the domestic dishwasher further comprises a control device for detecting the motor current of the pump device during a calibration process.

[0025] The motor current is changed according to which spray zone is enabled or disabled. By separating a part of the hydraulic circuit from the pump device by means of a closure, a defined hydraulic state can be generated as described above, in which, for example, the reference operating point of the pump device is detected when fresh water and / or rinsing liquid is applied to one or more non-separated spray zones.

[0026] According to another embodiment, the closure is made of a water-soluble plastic, in particular polyvinyl alcohol.

[0027] However, the closure can also be made of any other water-soluble material. For example, the closure can also be made of salt, sugar or wax.

[0028] Furthermore, a method for calibrating a household dishwasher is proposed, which household dishwasher has a rinsing container for receiving the rinsing objects, a hydraulic circuit for circulating fresh water and / or rinsing liquid in the rinsing container, and a pump device for applying fresh water and / or rinsing liquid to the hydraulic circuit. Here, the method has the following steps: a) during a one-time calibration process of the household dishwasher, separating a part of the hydraulic circuit from the pump device by means of a closure made of a water-soluble material; and b) dissolving the closure in fresh water and / or rinsing liquid during and / or after the calibration process.

[0029] In particular, the method is suitable for calibrating or commissioning the household dishwasher as described above. The method can be called a calibration method or a commissioning method. Steps a) and b) can be carried out successively or simultaneously.

[0030] According to one embodiment, in step b), the closure is dissolved according to the temperature of the fresh water and / or rinsing liquid, and / or according to the duration of contact of the closure with the fresh water and / or rinsing liquid.

[0031] Thus, for example, it can be achieved that the closure is completely or selectively dissolved approximately at the end of the calibration process by means of suitable temperature control.

[0032] According to another embodiment, in step a), at least one spray zone among a plurality of spray zones of the hydraulic circuit is separated from the pump device by means of the closure.

[0033] In particular, the intensive spray zone as described above is separated from the other spray zones.

[0034] According to another embodiment, in step a), the closure is arranged in or on the supply line of at least one spray zone separated from the pump device by means of the closure.

[0035] The arrangement of the closure can be achieved, for example, before installing the household dishwasher. In particular, the arrangement of the closure can have been achieved at the supplier.

[0036] According to a further embodiment, the motor current of the pump device is detected by means of the control device during the calibration process.

[0037] During operation of the domestic dishwasher, the control device can detect by monitoring and / or evaluating the motor current which of the spray zones is activated and which is deactivated.

[0038] Further aspects of the domestic dishwasher and / or method also include combinations of features or embodiments not described in detail above or below with reference to the exemplary embodiments. A person skilled in the art can also supplement these respective aspects as improvements or supplements to the corresponding basic design of the domestic dishwasher and / or method. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Further advantageous embodiments and aspects of the domestic dishwasher are the subject matter of the dependent claims and the following exemplary embodiments of the domestic dishwasher and / or the method. The domestic dishwasher and / or the method are further explained in more detail based on preferred embodiments with reference to the accompanying drawings.

[0040] Figure 1 A schematic perspective view showing an embodiment of a domestic dishwasher;

[0041] Figure 2 Show the basis Figure 1 A highly schematic illustration of a household dishwasher;

[0042] Figure 3 A highly schematic illustration of another embodiment of a domestic dishwasher is shown; and

[0043] Figure 4 Shown for calibration according to Figure 1 or Figure 3 Schematic block diagram of an embodiment of a method for a domestic dishwasher.

[0044] Unless otherwise indicated, identical or functionally identical elements in the figures are provided with the same reference numerals. DETAILED DESCRIPTION

[0045] Figure 1 A schematic perspective view shows an embodiment of a domestic dishwasher 1. The domestic dishwasher 1 comprises a washing container 2 that can be closed, in particular watertightly, by a door 3. For this purpose, a sealing ring can be provided between the door 3 and the washing container 2. The washing container 2 is preferably cuboid. The washing container 2 can be arranged in the housing of the domestic dishwasher 1. The washing container 2 and the door 3 can form a washing chamber 4 for rinsing the items to be washed.

[0046] Door 3 in Figure 1It is shown in its open position. By pivoting about a pivot shaft 5 provided at the lower end of the door 3, the door 3 can be closed or opened. By means of the door 3, the filling opening 6 of the rinsing container 2 can be closed or opened. The rinsing container 2 has a bottom 7, a top lid 8 opposite to the bottom 7, a rear wall 9 opposite to the closed door 3, and two opposite side walls 10, 11. The bottom 7, the top lid 8, the rear wall 9 and the side walls 10, 11 can be made of, for example, stainless steel plates. Alternatively, for example, the bottom 7 can be made of plastic.

[0047] In addition, the household dishwasher 1 has at least one rinsing item accommodation part 12 to 14. Preferably, a plurality of, for example, three rinsing item accommodation parts 12 to 14 can be provided, wherein the rinsing item accommodation part 12 can be a bottom rinsing item accommodation part or a bottom basket, the rinsing item accommodation part 13 can be an upper rinsing item accommodation part or an upper basket, and the rinsing item accommodation part 14 can be a tableware drawer. Also as Figure 1 shown, the rinsing item accommodation parts 12 to 14 are arranged in a stacked manner in the rinsing container 2. Each of the rinsing item accommodation parts 12 to 14 can be optionally moved into or out of the rinsing container 2. In particular, each of the rinsing item accommodation parts 12 to 14 can be inserted or enter into the rinsing container 2 along the insertion direction E or be withdrawn or protruded from the rinsing container 2 along the withdrawal direction A opposite to the insertion direction E.

[0048] Figure 2 An extremely schematic view of the household dishwasher 1 is shown. The household dishwasher 1 includes a control device 15. Preferably, the control device 15 is an adjustment and control device, and by means of the control device 15, different rinsing programs of the household dishwasher 1 can be implemented, for example. For this purpose, the rinsing programs can be stored or deposited in the control device 15. Preferably, the control device 15 is arranged outside the rinsing container 2. The control device 15 can be arranged in or on the door 3. Preferably, the control device 15 is provided at the upper edge of the door 3. The control device 15 can be operated or manipulated by means of an operation element (not shown). The operation element can include, for example, keys, buttons and / or a touch screen.

[0049] The household dishwasher 1 also includes a pump device 16. The pump device 16 is a circulation pump. The pump device 16 can be arranged at a pump trough (not shown) of the rinsing container 2. The pump trough is provided at the bottom 7 of the rinsing container 2. The pump device 16 can be arranged in or on the pump trough. Preferably, the pump device 16 is positioned outside the rinsing container 2. However, the pump device 16 can also be at least partially arranged in the rinsing container 2.

[0050] In addition, the household dishwasher 1 includes a hydraulic circuit 17 for circulating fresh water and / or a rinsing liquid F in the rinsing container 2. The "rinsing liquid" can currently be understood as water mixed with a cleaning agent and / or dirt particles detached from the rinsed objects. The hydraulic circuit 17 includes a plurality of spray zones 18, 19. The spray zones 18, 19 can be, for example, spray arms rotatably supported in the rinsing container 2. However, the spray zones 18, 19 can also be so-called intensive spray zones. Each spray zone 18, 19 has a plurality of spray heads for distributing fresh water and / or the rinsing liquid in the rinsing container 2.

[0051] The spray zone 18 is in fluid connection with the pump device 16 via a supply line 20. By means of the supply line 20, the pump device 16 can apply fresh water and / or the rinsing liquid F to the spray zone 18. A supply line 21 is allocated to the spray zone 19, and the supply line connects the spray zone 19 with the pump device 16 in fluid connection. Via the supply line 21, the pump device 16 can apply fresh water and / or the rinsing liquid F to the spray zone 19. Here, each spray zone 18, 19 is provided with its own supply lines 20, 21. Alternatively, the two spray zones 18, 19 can also have a common branched supply line.

[0052] A pump sump (not shown) can be provided between the pump device 16 and the supply lines 20, 21, and the pump sump can enable: applying fresh water and / or the rinsing liquid F to only one of the spray zones 18, 19 or to both spray zones 18, 19 simultaneously. In addition, the supply line 20, 21 or one of the supply lines 20, 21 can have a valve, in particular a switching valve, and the valve can enable: separating the corresponding spray zone 18, 19 from the pump device 16. The valve can be, for example, a manually operable valve, however, the valve can also be electrically controlled.

[0053] A closure 22 can be provided in or on one of the two supply lines 20, 21, and the closure is made of a water-soluble material. The closure 22 closes or seals the supply line 20, 21 in or on which the closure 22 is provided. The water-soluble material can be, for example, polyvinyl alcohol, a water-soluble salt, sugar, a water-soluble wax or the like. The closure 22 can include a mixture of different materials. Here, a water-insoluble material can also be combined with the water-soluble new material as a filling material, for example.

[0054] The closure 22 can be arranged as Figure 2 shown in or on the supply line 21. However, the closure can also be arranged in or on the supply line 20. By means of the closure 22, it can be achieved that a part of the hydraulic circuit 17, currently the spray zone 19, is separated from the pump device 16. "Separation" is currently understood as: the pump device 16 cannot apply fresh water and / or the rinsing liquid F to the spray zone 19 due to the closure 22 arranged in or on the supply line 21. That is to say, the spray zone 19 is fluidically isolated from the pump device 16.

[0055] Next, the function of the stopper 22 will be described. The control device 15 is adapted to detect the motor current I of the pump device 16 and determine from the motor current I which of the spray zones 18, 19 is enabled. The pump device 16 uses different motor currents I for the cases where only the spray zone 18, only the spray zone 19, or both spray zones are enabled. In particular, the control device 15 can identify which of the spray zones 18, 19 is enabled based on the motor current difference.

[0056] However, for this purpose, calibration or a calibration process of the household dishwasher 1 is required during commissioning. By means of calibration, it is ensured that it is possible to reliably identify which of the spray zones 18, 19 is enabled. This calibration is carried out in a defined hydraulic state of the household dishwasher 1. This defined hydraulic state is achieved in such a way that the hydraulic circuit 17 is coupled to the pump device 16 by means of the stopper 22. Currently, this calibration is carried out with the spray zone 18 enabled and the spray zone 19 disabled. This is achieved in such a way that the stopper 22 separates the spray zone 19 from the pump device 16. Here, this separation is carried out without the assistance of the user. After or during the calibration process, the stopper 22 dissolves in fresh water and / or the rinsing liquid F.

[0057] By means of the stopper 22, it is ensured that the user does not inadvertently enable both spray zones 18, 19 during the commissioning of the household dishwasher 1. The stopper 22 dissolves slowly when in contact with fresh water and / or the rinsing liquid F, so that both spray zones 18, 19 are enabled after the calibration process of the household dishwasher 1 has ended. Thus, the calibration process of the household dishwasher 1 can be carried out in a defined hydraulic state regardless of whether the spray zone 19 is enabled or disabled. The stopper 22 then dissolves according to the temperature of the fresh water and / or the rinsing liquid F and the duration of the application of the fresh water and / or the rinsing liquid F. Here, for example, the duration until the stopper 22 dissolves can be influenced or controlled by means of its composition and / or the temperature of the fresh water and / or the rinsing liquid F.

[0058] Therefore, regardless of the user's adjustment of the respective spray zones 18, 19, the calibration can always be carried out reliably. This improves the operating stability of the household dishwasher 1. The stopper 22 can, for example, already be introduced into the corresponding supply lines 20, 21 when the hydraulic circuit 17 is installed. The stopper 22 is also protected from the initial rinsing process by the valves corresponding to the respective spray zones 18, 19. This results in cost savings and simple operation for the user.

[0059] In addition, no additional prompts for the household dishwasher 1 are required to prompt the user of the necessity to disable the spray zone 19. Further cost savings are achieved here and waste is avoided. The calibration is carried out during the initial commissioning without the assistance of the user. This results in simple operation. By implementing the calibration on the user side, the commissioning at the end of manufacturing can be dispensed with. This results in further cost savings.

[0060] Figure 3 An extremely schematic view of another embodiment of the household dishwasher 1 is shown. Only the differences from the household dishwasher 1 according to Figure 1 and Figure 2 will be discussed next. In addition to the rinsing container 2, the household dishwasher 1 includes a base support 23 which bears the rinsing container 2. The base support 23 is, for example, a plastic part, in particular a plastic injection-molded part.

[0061] A pump sump 24 is provided on the bottom 7. A pump device 16 is arranged on the pump sump 24. For example, the pump device 16 can be connected to the pump sump 24 by means of a supply line 25. A water switch 26 is provided downstream of the pump device 16. The water switch 26 is coupled to the pump device 16 by means of a supply line 27, for example.

[0062] The household dishwasher 1 also includes the hydraulic circuit 17 as described above. The hydraulic circuit 17 includes a spray zone 28 which is configured as a spray arm rotatably supported in the rinsing container 2. In addition, the hydraulic circuit 17 includes a further spray zone 29 which is likewise configured as a spray arm rotatably arranged in the rinsing container 2. Each spray zone 28, 29 includes a plurality of spray heads for evenly distributing fresh water and / or rinsing liquid F in the rinsing container 2.

[0063] For example, the spray zone 28 is assigned to the rinsing receptacle 12 and the spray zone 29 is assigned to the rinsing receptacle 13. The spray zone 28 is coupled to the water switch 26 by means of a supply line 30. The spray zone 29 is coupled to the water switch 26 by means of a supply line 31. By means of the water switch 26, for example, fresh water and / or rinsing liquid F can be applied only to the spray zone 28 or only to the spray zone 29 or to both spray zones 28, 29 simultaneously during the course of the rinsing program.

[0064] The hydraulic circuit 17 also includes a further spray zone 32, which is designed as a so-called dense spray zone. The spray zone 32 also includes a plurality of spray heads. For example, the spray zone 32 can be fastened to the flushing material container 13. The spray zone 32 is also fluidically coupled to the pump device 16 via the supply line 31. However, a valve 33 is provided between the supply line 31 and the spray zone 32, by means of which the spray zone 32 can be fluidically separated from the hydraulic taming system 17 or recoupled. In particular, the valve 33 can be manually operated by the user, so that the spray zone 32 can be disabled or enabled. The valve 33 is a switching valve. In other words, the valve 33 is completely open or completely closed. The valve 33 can be a switching valve.

[0065] Upstream of the valve 33, a closure 22 made of a water-soluble material, as described above, is arranged. The closure 22 can be arranged on or in a distribution element 34, which is suitable for distributing fresh water and / or flushing liquid F to the spray zones 29, 32. However, the closure 22 can also be arranged downstream of the valve 33. "Upstream" in this case means being arranged before the valve 33, as seen in the direction of flow of the fresh water and / or flushing liquid F. "Downstream" in this case means being arranged after the valve 33, as seen in the direction of flow of the fresh water and / or flushing liquid F.

[0066] according to Figure 3 The functionality of the domestic dishwasher 1 essentially corresponds to that according to Figure 1 and Figure 2 In order to be able to detect whether the manually operable spray zone 32 is activated or deactivated during operation of the domestic dishwasher 1 by means of the control device 15, it is necessary to calibrate the domestic dishwasher 1. As described above, this calibration is carried out in a defined hydraulic state.

[0067] This defined state can be achieved by disabling the spray zone 32 during commissioning or calibration of the domestic dishwasher 1. This disabling is ensured by the closure 22. The switching position of the valve 33 is irrelevant to the disabling of the spray zone 32 during commissioning of the domestic dishwasher 1. During calibration, the spray zone 29, the spray zone 28, or both spray zones 28, 29 can be calibrated during operation by actuating the water switch 26 via the control device 15. The closure 22 is released after or during calibration. After calibration, the operating state of the spray zone 32 can be detected by the change in the motor current I.

[0068] Figure 4 shows the calibration according to Figure 1 and Figure 2 Household dishwasher 1 and according to Figure 3 Schematic block diagram of an embodiment of a method for a domestic dishwasher 1 .

[0069] In step S1, during a one-time calibration of the domestic dishwasher 1, the hydraulic circuit 17 is separated from the pump device 16 by means of a seal 22 made of a water-soluble material. Subsequently or simultaneously, during and / or after the calibration process, the seal 22 is dissolved in fresh water and / or rinse fluid F.

[0070] In particular, in step S2, the closure 22 is dissolved depending on the temperature of the fresh water and / or the flushing liquid F and / or depending on the duration of contact of the closure 22 with the fresh water and / or the flushing liquid F. In step S1, at least one of the plurality of spray zones 19, 32 of the hydraulic circuit 17 is separated from the pump device 16 by means of the closure 22. Furthermore, in step S1, the closure 22 is arranged in or on one of the supply lines 21, 31 of the at least one spray zone 19, 32 separated from the pump device 16 by means of the closure 22.

[0071] Although the present invention has been described based on the embodiment, the present invention is capable of various modifications.

[0072] Reference Number List

[0073] 1. Household dishwasher

[0074] 2. Rinse the container

[0075] 3 doors

[0076] 4. Flushing room

[0077] 5 Pivot Axis

[0078] 6 Filling the opening

[0079] 7 Bottom

[0080] 8 Top cover

[0081] 9 Posterior wall

[0082] 10 Sidewall

[0083] 11 Sidewall

[0084] 12. Flushing material storage area

[0085] 13. Flushing material storage area

[0086] 14. Flushing material storage area

[0087] 15 Control device

[0088] 16 Pump unit

[0089] 17 Hydraulic circuit

[0090] 18 Spray Zone

[0091] 19 Spray Zone

[0092] 20 Supply Pipe

[0093] 21 Supply Pipe

[0094] 22 Sealer

[0095] 23 Foundation Bracket

[0096] 24 Pump Sump

[0097] 25 Supply Pipe

[0098] 26 Water Switch

[0099] 27 Supply Pipe

[0100] 28 Spray Zone

[0101] 29 Spray Zone

[0102] 30 Supply Pipe

[0103] 31 Supply Pipe

[0104] 32 Spray Zone

[0105] 33 Valve

[0106] 34 Distribution Element

[0107] A Withdrawal Direction

[0108] E Insertion Direction

[0109] F Fresh Water and / or Flushing Liquid

[0110] I Motor Current

[0111] S1 Step

[0112] S2 Step

Claims

1. A household dishwasher (1) having a rinsing container (2) for receiving rinsing items, a hydraulic circuit (17) for circulating fresh water and / or rinsing liquid (F) in the rinsing container (2), a pump device (16) for applying the fresh water and / or rinsing liquid (F) to the hydraulic circuit (17), and a closure (22) made of a water-soluble material, the closure separating a part of the hydraulic circuit (17) from the pump device (16) during a one-time calibration process of the household dishwasher (1), and the closure dissolving in the fresh water and / or rinsing liquid (F) during and / or after the calibration process.

2. The household dishwasher according to claim 1, wherein The hydraulic circuit (17) has a plurality of spraying zones, wherein the closure (22) separates at least one of the spraying zones from the pump device (16).

3. The household dishwasher according to claim 2, characterized in that, At least one spraying zone separated from the pump device (16) by means of the closure (22) can be transitioned from an enabled state to a disabled state by means of a valve (33).

4. The household dishwasher according to claim 3, characterized in that, The closure (22) is arranged upstream of the valve (33).

5. The household dishwasher according to any one of claims 2 to 4, characterized in that, At least one spraying zone separated from the pump device (16) by means of the closure (22) is a dense spraying zone.

6. The household dishwasher according to any one of claims 2 to 4, characterized in that, At least one spraying zone separated from the pump device (16) by means of the closure (22) and another spraying zone are connected to the pump device (16) by means of a common supply line (31).

7. The household dishwasher according to claim 6, characterized in that, The closure (22) is arranged between the spraying zone separated from the pump device (16) by means of the closure (22) and the supply line (31).

8. The household dishwasher according to any one of claims 2 to 4, further comprising a water switch (26) arranged downstream of the pump device (16), the water switch being used to enable and disable the spraying zone.

9. The household dishwasher according to any one of claims 1 to 4, further comprising a control device (15) for detecting the motor current (I) of the pump device (16) during the calibration process.

10. The household dishwasher according to any one of claims 1 to 4, characterized in that, The closure (22) is made of a water-soluble plastic.

11. The household dishwasher according to claim 10, wherein, The water-soluble plastic is polyvinyl alcohol.

12. A method for calibrating a household dishwasher (1), the household dishwasher having a rinsing container (2) for receiving rinsing items, a hydraulic circuit (17) for circulating fresh water and / or a rinsing liquid (F) in the rinsing container (2), and a pump device (16) for applying the fresh water and / or the rinsing liquid (F) to the hydraulic circuit (17), wherein, The method comprises the following steps: a) During a one-time calibration process of the household dishwasher (1), separating a part of the hydraulic circuit (17) from the pump device (16) by means of a closure (22) made of a water-soluble material; and b) Dissolving the closure (22) in the fresh water and / or rinsing liquid (F) during and / or after the calibration process.

13. The method according to claim 12, wherein In step b), the closure (22) is dissolved according to the temperature of the fresh water and / or rinsing liquid (F), and / or according to the duration of contact of the closure (22) with the fresh water and / or rinsing liquid (F).

14. The method according to claim 12 or 13, characterized in that, In step a), at least one spraying zone among the plurality of spraying zones of the hydraulic circuit (17) is separated from the pump device (16) by means of the closure (22).

15. The method according to claim 12 or 13, characterized in that In step a), the closer (22) is arranged in or on a supply line of at least one spray zone separated from the pump device (16) by means of the closer (22).

16. The method according to claim 12 or 13, characterized in that, During the calibration process, the motor current (I) of the pump device (16) is detected by means of the control device (15).

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