Dishwasher with improved spraying device

Abstract

A dishwasher (100) for washing dishes, the dishwasher comprising: a washing chamber (110) for receiving dishes; and a spraying device (120) arranged to be fixed in the washing chamber (110), where the spraying device is configured to generate a liquid spray (122), and where the spraying device comprises a conduit (123) for supplying liquid. The spraying device (120) comprises a movable device (121) provided with at least first and second nozzle members (124, 125) arranged to provide different modes of liquid spraying (122). Each nozzle member includes a nozzle outlet (127, 128) and a nozzle inlet (411, 412) for fluid communication with the outlet of the conduit (123). The movable device (121) is arranged relative to the outlet of the conduit (123) such that the movable device is movable between a first position and a second position. In a first position, the nozzle inlet (411) of the first nozzle member (124) is in fluid communication with the outlet of the conduit (123), and in a second position, the nozzle inlet (412) of the second nozzle member (125) is in fluid communication with the outlet of the conduit.

Description

Technical Field

[0001] The present disclosure relates to a dishwasher having a structure capable of reconfiguring liquid spraying of a fixed spraying device in a washing chamber. Background Art

[0002] Dishwashers intended for domestic use typically wash dishes in batches. Such dishwashers include a washing chamber for receiving dishes and a plurality of baskets located within the washing chamber. Dishwashers typically include one or more arms arranged below the respective baskets and provided with means for spraying wash water towards the baskets. Such arms rotate to evenly distribute the wash water.

[0003] Tableware may be soiled to different degrees, i.e. some tableware, such as pans and pots, may take longer in order to remove all the dirt. For this purpose, there are special pot programmes with higher wash cycle times or higher temperatures than programmes for, e.g., delicate tableware. This consumes energy and time, meaning that even lightly soiled tableware will be exposed to the same treatment, i.e. unnecessarily long washing times or unnecessarily high temperatures, which causes unnecessary wear and tear on the tableware.

[0004] WO2004019747A1 proposes a dishwasher having a container area for tableware, wherein the container area comprises a power zone for particularly dirty tableware. The dishwasher further comprises a power rinse nozzle, which is arranged to direct a localized spray beam toward the power zone and its corresponding storage area. The power rinse nozzle is fixed and attached to a rigid non-attached rinse arm, which is attached to the circulation system both mechanically and in terms of washing liquid. Summary of the invention

[0005] The object of the present disclosure is to provide an improved dishwasher, and in particular to provide a dishwasher with an improved fixed spray device. The object is at least partially achieved by a dishwasher for washing tableware. The dishwasher comprises: a washing chamber for receiving tableware; and a spray device, which is arranged to be fixed in the washing chamber, wherein the spray device is configured to produce a liquid spray, and wherein the spray device comprises a conduit for supplying liquid. The spray device comprises a movable device, which is provided with at least a first nozzle member and a second nozzle member, and the first nozzle member and the second nozzle member are arranged to provide different modes of liquid spray. Each nozzle member comprises a nozzle outlet and a nozzle inlet for communicating with the outlet fluid of the conduit. The movable device is arranged relative to the outlet of the conduit so that the movable device can move between a first position and a second position. In the first position, the nozzle inlet of the first nozzle member is in fluid communication with the outlet fluid of the conduit, and in the second position, the nozzle inlet of the second nozzle member is in fluid communication with the outlet fluid of the conduit.

[0006] The liquid spray provides a directional spray in a predetermined area of ​​the dishwasher, where, for example, highly soiled dishes or dishes with a specific shape that benefit from a fixed directional spray, such as bottles, may be placed. The disclosed spray device enables lower energy consumption of the dishwasher, because a fixed directional spray may require less liquid than a more general spray device, such as a rotating arm with a nozzle. The disclosed spray device can be used with minimal modifications in existing dishwashers.

[0007] Being able to switch twice between at least two different modes of liquid spraying of the fixed spraying device makes it possible to select a preferred spray beam according to the situation. For example, if the first nozzle member is configured to provide a wide range liquid spray and the second nozzle member is arranged to provide a narrow range liquid spray, the movable device can be set to the first position when washing pots and can be set to the second position when washing bottles. The movable device can thus wash dishes more efficiently, which can save energy, because a more general spraying may take longer to wash dishes and / or require a higher temperature of the liquid and / or inside the washing chamber.

[0008] According to various aspects, the movable device is rotatable, wherein the movable device is arranged relative to the outlet of the conduit so that the movable device can rotate between a first position and a second position. This provides a convenient way to move the movable device between the first position and the second position, especially when moved by hand. In this case, the movable device preferably has a circular shape, such as a disc or a cylinder. In addition, the first nozzle member and the second nozzle member can be circumferentially distributed on the movable member around the first rotation axis of the movable device. This provides a secure connection between the outlet of the conduit and the nozzle inlet of the nozzle member that is connected to the conduit fluid, i.e. a secure connection with minimal leakage. In addition, the rotational motion and the circumferentially distributed nozzle members guide the operator to easily switch between the first position and the second position.

[0009] According to various aspects, the first position and the second position are fixed in position relative to the conduit by a snap-fit ​​mechanism. This firmly connects the outlet of the conduit and the nozzle inlet of the nozzle. The snap-fit ​​mechanism makes each position distinguishable to the operator. In addition, the snap-fit ​​mechanism, especially when combined with the circumferentially distributed nozzle members and the rotational movement of the movable device, guides the operator to easily switch between the first position and the second position.

[0010] According to various aspects, the spraying device is arranged at the bottom surface of the washing chamber and is configured to generate a liquid spray towards the top surface of the washing chamber, wherein the top surface is opposite to the bottom surface. In this way, the liquid spray can be directed towards the side of the dishes facing the bottom of the washing chamber, which is advantageous because the liquid is less likely to accumulate in the dishes.

[0011] According to various aspects, the movable device is further arranged to provide a closed position, which is arranged to block the liquid supply from the outlet of the conduit, wherein the movable device is arranged relative to the outlet of the conduit so that the movable device can be moved between a first position, a second position and a closed position. In this way, the spray device can be effectively turned off if it is not needed, for example if there are no particularly dirty dishes. This can reduce the pressure required in the circulation system in the dishwasher, which in turn can reduce the energy consumption of the dishwasher.

[0012] According to various aspects, different modes of liquid spraying have different cone shapes. This provides different modes suitable for different types of tableware and for tableware with different degrees of soiling. Preferably, one mode has a wide range spraying and the other has a narrow range spraying. In addition, at least one mode of liquid spraying can be a rotating mode, which can be suitable for different types of tableware and for tableware with different degrees of soiling.

[0013] According to various aspects, one or more rotatable arms are included, which are arranged to rotate around a second rotation axis in the washing chamber, wherein each rotatable arm includes a device for spraying liquid. In this case, at least one rotatable arm can be arranged to be connected to a spraying device to periodically interrupt the liquid spraying of the spraying device when at least one rotatable arm rotates. The periodically interrupted spraying can be suitable for different types of tableware and for tableware with different degrees of soiling.

[0014] According to various aspects, the dishwasher comprises a support device arranged in the washing chamber, wherein the support device is configured to support one or more rotatable arms, and wherein the spray device is fixedly connected to the support device. This provides a convenient way of arranging the spray device with minimal modifications to existing dishwashers.

[0015] According to various aspects, the first nozzle member has a through hole with an internal geometry different from the corresponding internal geometry of the second nozzle member, the through hole connecting its nozzle outlet and nozzle inlet. When connected to the outlet fluid of the conduit, this provides different spray patterns, flow rates, spray pressures and / or spray directions from each nozzle member.

[0016] Generally, all terms used in the claims will be interpreted according to their ordinary meaning in the technical field, unless otherwise expressly defined herein. All references to "a / an / the element, device, part, device, step, etc." should be publicly interpreted as referring to at least one instance of an element, device, part, device, step, etc., unless otherwise expressly stated. Further features and advantages of the present disclosure will become apparent when studying the attached claims and the following description. The skilled person recognizes that different features of the present disclosure can be combined to create embodiments other than the embodiments described below without departing from the scope of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] With reference to the accompanying drawings, the following is a more detailed description of embodiments of the present disclosure cited as examples. In the accompanying drawings:

[0018] Figure 1 shows a schematic diagram of a dishwasher,

[0019] Figure 2-Figure 4 A schematic diagram showing a spraying device, and

[0020] Figure 5-Figure 9 Different views of the spraying device are shown. DETAILED DESCRIPTION

[0021] The present disclosure will now be described more fully below with reference to the accompanying drawings, in which certain aspects of the present disclosure are shown. However, the present disclosure may be embodied in many different forms and should not be construed as limited to the embodiments and aspects set forth herein; rather, these embodiments are provided by way of example so that the present disclosure will be thorough and complete and will fully convey the scope of the present disclosure to those skilled in the art. Throughout the specification, like numbers refer to like elements.

[0022] It should be understood that the present disclosure is not limited to the embodiments described herein and shown in the drawings; rather, the skilled artisan will recognize that many changes and modifications are possible within the scope of the appended claims.

[0023] Figure 1 A schematic diagram of a disclosed dishwasher 100 for washing dishes is shown. The dishwasher comprises a washing chamber 110 for receiving dishes. The washing chamber is an enclosed space in which dishes can be stored. The washing chamber may comprise an opening face allowing access to the washing chamber and a door for closing and opening the opening face. The dishwasher may further comprise one or more baskets 151, 152 distributed on various layers, in which dishes can be arranged. These baskets can be moved into and out of the washing chamber 110 through an opened door. The baskets typically comprise a mesh structure so that the dishes can be sprayed with a liquid, such as wash water, i.e., water mixed with detergent.

[0024] The dishwasher can be connected to a pressurized liquid system via a chamber inlet, and can include a chamber outlet for emptying the liquid of the washing chamber 110. During the wash cycle, the liquid can circulate in the washing chamber in a closed circulation system. Such a circulation system can include a fluid basin formed by the lower container portion of the washing chamber for collecting the liquid for recirculation. The circulation system can further include a circulation pump, which is arranged to circulate the liquid under pressure during the washing step of the wash cycle. The circulation pump can be a controlled control unit for each process step of the dishwasher. The circulation pump is usually arranged to circulate the liquid so that the spraying device located inside the washing chamber sprays the tableware with the liquid.

[0025] As described above, if the tableware includes some particularly dirty tableware, it may be desirable to spray these particularly dirty tableware more powerfully than the rest of the tableware directly. Therefore, the dishwasher 100 disclosed herein includes a spraying device 120 arranged to be fixed in the washing chamber 110, wherein the spraying device is configured to produce a liquid spray 122, and wherein the spraying device includes a conduit 123 for supplying liquid. The spraying device 120 can be arranged to direct the liquid spray toward the basket 151, in which the tableware is arranged. For example, the spraying device 120 can be arranged at the bottom surface of the washing chamber 110, and is configured to produce a liquid spray 122 toward the top surface of the washing chamber 110, wherein the top surface is opposite to the bottom surface. In this case, the basket can be arranged between the spraying device and the top surface of the washing chamber. For example, a pot or a pan can be stored in a basket, wherein the surface to be washed faces downward. The spraying device is then preferably arranged at a distance from the bottom of the basket, wherein the liquid spray 122 is directed toward the surface to be washed. However, the spraying device 120 may be placed on any surface of the washing chamber, or more generally, at any location in the washing chamber. The spraying device 120 may be fluidly connected to the above-mentioned circulation system via a conduit for receiving liquid.

[0026] Liquid spray 122 can be directed toward the area for storing particularly dirty dishes. In this case, the impact of liquid spray 122 is limited to a smaller volume than the entire washing chamber. For example, the area can include a portion of the bottom surface of the basket.

[0027] The conduit can be designed with a rigid material, i.e. the conduit 123 can be rigid. The conduit can, for example, comprise a plastic pipe or a metal pipe. The rigid conduit can freely support the spraying device at a distance from the bottom or side wall of the washing chamber without any additional mechanical attachments. The spraying device is usually arranged to provide a single liquid spray during operation. In other words, the spraying device usually does not have nozzles distributed over the length of the conduit.

[0028] exist Figure 1 In the illustrative example of , the dishwasher comprises a single spray device. However, the dishwasher may comprise a plurality of spray devices. For example, the dishwasher may comprise four spray devices, which are distributed on four different quadrants of the rectangular bottom of the washing chamber.

[0029] The spray device 120 of the disclosed dishwasher 100 further includes a movable device 121 . Figure 2-Figure 4 A schematic diagram of a movable device is shown. In particular, Figure 2 An angled view is shown, Figure 3 A top view is shown, and Figure 4 A side view is shown. The movable device 121 is provided with at least a first nozzle member 124 and a second nozzle member 125, which are arranged to provide different modes of liquid spraying 122. Each nozzle member includes a nozzle outlet 127, 128 and a nozzle inlet 411, 412, wherein the nozzle inlet is suitable for communicating with the outlet fluid of the conduit 123. The movable device 121 is arranged relative to the outlet of the conduit 123 so that the movable device can be moved between a first position and a second position. In the first position, the nozzle inlet 411 of the first nozzle member 124 is in fluid communication with the outlet fluid of the conduit 123, and in the second position, the nozzle inlet 412 of the second nozzle member 125 is in fluid communication with the outlet fluid of the conduit.

[0030] Preferably, the movable device 121 is movably attached to the conduit 123. The movable device may be movable between a first position and a second position, or more generally between a predetermined number of positions, for example by sliding or rotating.

[0031] Nozzle member is a device that can be connected to the outlet of a conduit to configure the liquid flow leaving the outlet. The nozzle member includes a through hole and has a nozzle inlet for connecting to the conduit outlet. The nozzle member further includes a nozzle outlet, through which liquid spray can be ejected. The nozzle member is arranged to provide a desired pattern of liquid spray, i.e. a specific shape. When the liquid flow enters or leaves the nozzle member, the nozzle member can change the speed of the liquid flow compared to the flow in the conduit. The nozzle member can additionally or alternatively change the flow direction and / or pressure of the spray ejected from the nozzle member. The nozzle member can include a pipe or a pipeline, and the pipe or pipeline has a cross-sectional area that changes along the pipe or pipeline.

[0032] The first nozzle member and the second nozzle member provide the liquid spraying of the different modes of the spraying device 120. Here, the mode of spraying refers to the shape of the liquid stream leaving the nozzle outlet. Therefore, the first nozzle member 124 can have a through hole with an internal geometry different from the corresponding internal geometry of the second nozzle member 125, and the through hole connects its nozzle outlet 127 and the nozzle inlet 411. The internal geometry of the nozzle member can, for example, include a conical shape. In other words, the first nozzle member and the second nozzle member are arranged to provide the corresponding liquid spraying with different characteristics. Except for the mode, the different characteristics can be speed, pressure and / or flow direction.

[0033] The nozzle member can be designed so that it can spray a liquid stream that diverges when it leaves the nozzle outlet. The amount of divergence can be selected so that the tableware positioned in front of the spray (for example, at a distance of several centimeters apart) is hit on most of the surface facing the spray. The diffusion angle and therefore the flow amount to a certain extent usually affect the intensity of the spray. If the spray is conical, the diffusion angle is uniform around the vertex of the cone. In addition, the liquid spray 122 of different modes can have different cone shapes, that is, the first nozzle member and the second nozzle member can be configured to provide liquid sprays with different cone shapes. The shape of the liquid spray can also have other shapes, such as a triangle with thickness. In this case, the diffusion angle can be measured at the widest part of the vertex. The diffusion angle can be, for example, any number between close to 0 ° and 135 °. According to various aspects, the first nozzle member and the second nozzle member are configured to provide liquid sprays with different diffusion angles. The preferred angle or more general preferred shape of the liquid spray depends on the size and type of the tableware to be cleaned by the liquid spray, and depends on the distance between the spraying device and the tableware to be cleaned. Furthermore, one pattern may have a cone shape and another pattern may have a narrow jet shape. According to a further aspect, at least one pattern of liquid spray 122 may be a rotating pattern that may be suitable for use with different types of tableware and for tableware with different levels of soiling.

[0034] Being able to switch twice between at least two different modes of liquid spraying of the fixed spray device makes it possible to select a preferred spray beam according to the situation. For example, if the first nozzle member is configured to provide a wide range of liquid spraying and the second nozzle member is configured to provide a narrow range of liquid spraying, the movable device can be set to the first position when washing pots and can be set to the second position when washing bottles.

[0035] Each nozzle member includes a nozzle outlet 127, 128 and a nozzle inlet 411, 412 for communicating with the outlet fluid of the conduit 123. When the movable device is set to the first position, the nozzle inlet 411 of the first nozzle member 124 is in fluid communication with the outlet fluid of the conduit 123. In the first position, the second nozzle member is not in fluid communication with the outlet fluid of the conduit 123. This means that in the first position, the liquid flow from the outlet of the conduit flows into the nozzle inlet 411 of the first nozzle member, and the liquid spray 122 from the spraying device is ejected from the outlet of the first nozzle member. This provides a first shape of liquid spraying. When the movable device is set to the second position, the nozzle inlet 411 of the second nozzle member 125 is in fluid communication with the outlet fluid of the conduit 123. In the second position, the first nozzle member is not in fluid communication with the outlet fluid of the conduit 123. This means that in the second position, the liquid flow from the outlet of the conduit flows into the nozzle inlet 412 of the second nozzle member, and the liquid spray 122 from the spraying device is ejected from the outlet of the second nozzle member. This provides a second shape of liquid spraying.

[0036] The movable device 121 may be provided with three or more nozzle members arranged to provide corresponding different modes of liquid spray 122. In this case, the movable device 121 is arranged relative to the outlet of the conduit 123 so that the movable device can be moved between corresponding positions for each nozzle member. In each position, the nozzle inlet of the corresponding nozzle member is in fluid communication with the outlet of the conduit.

[0037] The movable device 121 may advantageously comprise plastic for cost-effective production. In this case, the nozzle member may be a through hole arranged in the movable device. However, the nozzle member may comprise metal, such as a metal insert tube inserted into a plastic disc. For example, the nozzle member may be provided with a metal pipe that is screwed to the plastic part of the movable device.

[0038] The movable device 121 may have a disc shape. Preferably, the size of the movable device is suitable for being easily moved by hand. For example, if the movable device has a disc shape, its radius may be 2-10 cm. In this way, the operator can easily move the movable device between the first position and the second position to change the pattern of liquid spraying.

[0039] The movable device 121 may be rotatable. In this case, the movable device may be arranged relative to the outlet of the conduit 123 so that the movable device can rotate between the first position and the second position. This provides a convenient way to move the movable device between the first position and the second position, especially when moved by hand. In this case, the movable device is preferably in a circular shape, such as a disc or a cylinder. In addition, the first nozzle member 124 and the second nozzle member 125 may be circumferentially distributed on the movable member 121 around the first rotation axis A1 of the movable device 121. This provides a good connection between the outlet of the conduit and the nozzle inlet of the nozzle member that is connected to the conduit fluid, i.e., a secure connection with minimal leakage. In addition, the rotational motion and the circumferentially distributed nozzle members guide the operator to easily switch between the first position and the second position.

[0040] Alternatively, the movable device may slide in a linear direction. In this case, the movable device may be arranged relative to the outlet of the conduit 123 so that the movable device is displaced between the first position and the second position in a linear direction.

[0041] The movable device 121 can be further arranged to provide a closed position 126, which is arranged to block the liquid supply from the outlet of the conduit 123. In this case, the movable device 121 is arranged relative to the outlet of the conduit so that the movable device can move between a first position, a second position and a closed position. The closed position is arranged to seal the outlet of the closed conduit so that no liquid can flow through the outlet of the conduit. In this way, if it is not necessary, for example, if there are no particularly dirty tableware, the spraying device can be effectively closed. This can reduce the pressure required in the circulation system in the dishwasher, which in turn can reduce energy consumption. Alternatively, the liquid can then be directed to other spraying devices of the dishwasher at a higher pressure, which can improve the function of other spraying devices and may be desirable in some cases.

[0042] Alternatively or in combination, the dishwasher may be provided with an alternating valve, which is, for example, arranged to be connected to the inlet of the conduit and which is electrically controlled to open and close the conduit. Such a valve may periodically alternate between an open position and a closed position. The alternation may be given a relatively high frequency, such as 10 Hz or more, to achieve a pulsating effect of the liquid spraying.

[0043] The movable device 121 may include sealing means operating between the movable device and the outlet of the conduit. These sealing means may, for example, include rubber gaskets. The sealing means may be securely connected to the outlet of the conduit. Alternatively, the sealing means may be securely connected to the movable device, for example by arranging a corresponding gasket around the nozzle inlet of the nozzle member.

[0044] Figure 2-Figure 4 A cylindrical movable device 121 is shown, which is arranged to be rotatable around a first rotation axis A1. In the figure, the movable device is set in the second position, and the nozzle inlet 128 of the second nozzle member 125 is in fluid communication with the outlet of the conduit 122. The movable device can be rotated around the first rotation axis A1 to alternatively fluidly connect the nozzle inlet 127 of the first nozzle member 124. The movable device can alternatively be rotated around the first rotation axis A1 to be set in the closed position 126.

[0045] The movable device may include two parts: a first part fixedly connected to the conduit and a second part movably connected to the first part. The first part may include a through hole in fluid communication with the outlet of the conduit. The nozzle member may be arranged in the second part. The sealing device may be arranged between the first part and the second part. The first position and the second position of the movable device may be fixed in position relative to the conduit by a snap-fit ​​mechanism. Such a snap-fit ​​may be arranged between the first part and the second part. Such a snap-fit ​​mechanism may include a plurality of grooves arranged to snap-fit ​​with the protrusion.

[0046] Figure 5-Figure 9 Different views of an example spraying device are shown, wherein Figure 7 1 and 2 are exploded views. In these figures, the first portion 620 comprises an arm fixedly connected to the conduit 123, and the second portion 630 is a rotatable disc. Figure 7 As shown, the second part 630 includes two sub-components 732, 733. These two sub-components are fixedly attached to each other by, for example, an adhesive. The second part 630 is rotatably attached to the first part 620 by a snap-fit ​​device in the first orifice 722, and can rotate around the extension direction of the first orifice. The first part is fixedly attached to the conduit 123 via a screw or bolt 621. The first part 620 includes a second orifice 723, which is a through hole that is fluidly connected to the conduit outlet. The second part 630 is therefore arranged relative to the outlet of the conduit and the first part 620 so that the second part can rotate between a first position, a second position and a closed position.

[0047] In addition, Figure 5-Figure 9 In the example spray device of the embodiment of the present invention, the second part 630 of the movable device 121, i.e., the rotatable disc, includes a plurality of grooves 631 arranged to snap fit with the protrusion 721 located on the first part 620, i.e., the arm. The arm includes a single protrusion, and the rotatable disc includes corresponding grooves for the first position, the second position, and the closed position.

[0048] The dishwasher 100 may further comprise one or more rotatable arms 130 , 132 arranged to be rotatable about a second rotation axis A2 in the washing chamber 110 , wherein each rotatable arm comprises means 131 , 133 for spraying liquid. Figure 1 The example dishwasher in FIG. 1 includes two rotatable arms: a lower arm 130 and an upper arm 132. The rotatable arm may include a plurality of tilted nozzles configured to rotate the rotatable arm. The tilted nozzles may be directed upward and / or downward to spray the dishes in the baskets 151, 152.

[0049] At least one rotatable arm 130, 132 can be arranged to be connected to the spraying device 120 to periodically interrupt the liquid spraying 122 of the spraying device when at least one rotatable arm rotates. In other words, the rotatable arm is arranged so that the rotatable arm blocks the path of the liquid spraying during at least one opportunity during the rotation cycle of the rotatable arm. The liquid spraying 122 from the spraying device 120 is therefore briefly and repeatedly interrupted and deflected. In some cases, the spraying of the periodic interruption produced can provide a desired washing effect. In this configuration, the rotatable arm does not necessarily completely block the liquid spraying. For example, if the liquid spraying has a conical shape, the arm can block half of the cross-sectional area of ​​the cone.

[0050] The dishwasher 100 may further include a support device 140 disposed in the washing chamber 110, wherein the support device is configured to support one or more rotatable arms 130, and wherein the spray device 120 is fixedly connected to the support device. The support device may include a central channel that is fluidly connected to the circulation system for distributing liquid to the rotatable arms and the spray device 120. The spray device 120 may be attached to the support device via a conduit 123.

Claims

1. A dishwasher (100) for washing dishes, the dishwasher comprising: a washing chamber (110) for receiving the tableware, and a spraying device (120) arranged to be fixed in the washing chamber (110), wherein the spraying device is configured to generate a liquid spray (122), wherein the spraying device comprises a conduit (123) for supplying the liquid, The spraying device (120) comprises a movable device (121), wherein the movable device is provided with at least a first and a second nozzle member (124, 125), wherein the first and the second nozzle members are arranged to provide different modes of liquid spraying (122), Each nozzle member comprises a nozzle outlet (127, 128) and a nozzle inlet (411, 412) for communicating with the outlet fluid of the conduit (123), wherein the movable device (121) is arranged relative to the outlet of the conduit (123) so that the movable device can move between a first position and a second position, wherein, in the first position, the nozzle inlet (411) of the first nozzle member (124) is in fluid communication with the outlet fluid of the conduit (123), and wherein, in the second position, the nozzle inlet (412) of the second nozzle member (125) is in fluid communication with the outlet fluid of the conduit.

2. The dishwasher (100) according to claim 1, wherein: The movable device (121) is rotatable, and wherein the movable device is arranged relative to the outlet of the duct (123) such that the movable device can be rotated between the first position and the second position.

3. The dishwasher (100) according to claim 2, wherein: The first and second nozzle members (124, 125) are distributed circumferentially on the movable member (121) around a first rotation axis (A1) of the movable device (121).

4. The dishwasher (100) according to any of the preceding claims, wherein The first position and the second position are secured in position relative to the conduit (123) by a snap-fit ​​mechanism.

5. The dishwasher (100) according to any of the preceding claims, wherein The spraying device (120) is arranged at a bottom surface of the washing chamber (110) and is configured to generate a liquid spray (122) towards a top surface of the washing chamber, wherein the top surface is opposite to the bottom surface.

6. The dishwasher (100) according to any of the preceding claims, wherein The movable device (121) is further arranged to provide a closed position (126), which is arranged to prevent the supply of liquid from the outlet of the conduit (123), wherein the movable device (121) is arranged relative to the outlet of the conduit (123) so that the movable device can move between the first position, the second position and the closed position.

7. The dishwasher (100) according to any of the preceding claims, wherein Different modes of liquid spray (122) have different cone shapes.

8. The dishwasher (100) according to any of the preceding claims, wherein At least one mode of the liquid spraying (122) is a rotational mode.

9. The dishwasher (100) according to any of the preceding claims, further comprising one or more rotatable arms (130, 132), the one or more rotatable arms being arranged to be rotatable about a second rotation axis (A2) in the washing chamber (110), wherein each rotatable arm comprises means (131, 133) for spraying liquid.

10. The dishwasher (100) according to claim 9, wherein: At least one rotatable arm (130, 132) is arranged to be connected to the spraying device (120) to periodically interrupt the spraying of liquid (122) by the spraying device when the at least one rotatable arm rotates.

11. The dishwasher (100) according to any one of claims 9 to 10, further comprising a supporting device (140) arranged in the washing chamber (110), wherein: The support device is configured to support the one or more rotatable arms (130), and wherein the spray device (120) is fixedly connected to the support device.

12. The dishwasher (100) according to any of the preceding claims, wherein The conduit (123) is rigid.

13. The dishwasher (100) according to any of the preceding claims, wherein The first nozzle member (124) has a through hole having an internal geometry different from the corresponding internal geometry of the second nozzle member (125), the through hole connecting its nozzle outlet (127) and nozzle inlet (411).

Images