Dishwasher

Abstract

A dishwasher according to an embodiment of the present disclosure includes: a tub; a basket disposed inside the tub and configured to receive tableware; a spraying device including a spraying rotor that sprays washing water to wash the dishware so as to be rotatable; and a duct including a duct body configured to allow washing water to flow, a duct bearing configured to rotatably support the spray rotor and to supply washing water from the duct body to the spray rotor, and a duct support configured to rotatably support the spray rotor together with the duct bearing, the spray rotor includes: a nozzle body rotatably coupled to the duct bearing and configured to receive wash water from the duct bearing; and a base main body which is supported by the pipe support and is combined with the nozzle main body so as to accommodate the washing water flowing into the nozzle main body.

Description

dishwasher Technical Field

[0001] This disclosure relates to a dishwasher including a spray device. Background Technology

[0002] A dishwasher is a device that uses detergent and washing water to automatically wash away food residue and other debris left on tableware.

[0003] A dishwasher may include a main body, a tub disposed inside the main body, a basket disposed inside the tub for holding dishes, a spray unit for spraying washing water into the basket, and pipes for directing the washing water to the spray unit.

[0004] The spray unit may include a bearing and a spray arm that rotates around the bearing. The spray arm may form a propulsion nozzle that generates propulsion while spraying wash water. The propulsion nozzle needs to be at a sufficient distance from the bearing to generate torque. That is, the spray arm may be configured to have sufficient length.

[0005] Dishwashers can effectively wash small dishes by miniaturizing the spray unit. This reduces friction with the bearings, allowing the miniaturized spray unit to generate sufficient torque for rotation. Technical problems of the invention

[0006] One aspect of this disclosure is to provide a dishwasher with improved washing performance.

[0007] One aspect of this disclosure is to provide a dishwasher that includes a miniaturized spray unit.

[0008] One aspect of this disclosure is to provide a dishwasher capable of reducing the friction of bearings.

[0009] The technical problems to be solved in this article are not limited to those mentioned above. Those skilled in the art will clearly understand other technical problems not mentioned from the following description. Technical Solution

[0010] A dishwasher according to one embodiment may include a tub, a basket located inside the tub and equipped for storing tableware, a spray device, and a conduit. The spray device may include a spray rotor, which may include a nozzle body and a base body coupled to the nozzle body so that a base body and the nozzle body together form a space. The conduit may include a conduit body capable of supplying washing water. The conduit may further include a conduit bearing, which is rotatably coupled to the nozzle body and configured to supply washing water flowing within the conduit body from the conduit body to the space formed by the base body and the nozzle body. The conduit may further include a conduit support, which supports the base body to rotatably support the spray rotor together with the conduit bearing, and is configured to spray washing water supplied to the space formed by the base body and the nozzle body toward the basket via the spray rotor to wash the tableware stored in the basket.

[0011] The pipe support may include: a support bearing facing the pipe bearing and having a cross-sectional area that decreases as it approaches the base body.

[0012] The pipe support may include: an extension extending from the pipe body along the protruding direction of the pipe bearing; and a support portion bent from the extension. The support bearing may be located at the end of the support portion.

[0013] The jet rotor may include a jet nozzle that sprays washing water from the space formed by the base body and the nozzle body toward the basket to wash the tableware contained in the basket.

[0014] The injection port may include a propulsion injection port located on the outer peripheral surface of the injection rotor.

[0015] The spray nozzle may further include an upper spray nozzle, formed in the nozzle body, and configured to spray washing water in a direction different from the direction of spraying washing water through the propulsion spray nozzle.

[0016] The nozzle body may include: a nozzle portion having a flow path, the flow path having a cross-sectional area corresponding to the cross-sectional area of ​​the flow path of the pipe bearing, so as to form a distribution flow path together with the pipe bearing.

[0017] The pipe body may include a bend to prevent a decrease in the flow rate of washing water flowing from the pipe body to the pipe bearing.

[0018] The nozzle section may be configured such that the cross-sectional area of ​​the flow path of the nozzle section increases as it moves away from the pipe bearing.

[0019] The nozzle portion may include a sealing portion surrounding the pipe bearing to prevent washing water from flowing out between the nozzle portion and the pipe bearing.

[0020] The pipe support may include an elastic material capable of elastic deformation during the arrangement of the nozzle body coupled to the pipe bearing and the base body supported by the pipe support.

[0021] The basket may include a base configured to support the tableware. The main body of the pipe may be positioned above the base.

[0022] The bottom may include: an inclined support portion configured to support the cutlery at an angle toward the lower side; and a pipe support portion connected to the inclined support portion and on which the pipe body is placed.

[0023] The jet rotor can be located on the lower side of the pipe body to spray washing water onto the tableware supported by the inclined support.

[0024] The dishwasher may include multiple pipe bearings and multiple pipe supports, arranged at predetermined intervals along the length of the pipe body. The dishwasher may include multiple jet rotors. The pipe supports, together with the pipe bearings, can support the jet rotors of the multiple jet rotors.

[0025] A dishwasher according to one embodiment may include: a basket including a bottom for supporting tableware; a pipe, configured to allow washing water to move, including a pipe body located above the bottom, a pipe bearing protruding from the pipe body, and a pipe support including a support bearing facing the pipe bearing; and a spray rotor, rotatably coupled between the pipe bearing and the support bearing, for receiving washing water from the pipe bearing and spraying the washing water to wash the tableware.

[0026] A dishwasher according to one embodiment may include: a tub; a basket including a bottom located inside the tub and supporting tableware; a pipe, configured to allow washing water to move, including a pipe body located above the bottom, a pipe bearing protruding from the pipe body, and a pipe support including a support bearing facing the pipe bearing; and a spray rotor, rotatably coupled between the pipe bearing and the support bearing, for receiving washing water from the pipe bearing and spraying washing water to wash tableware, wherein the spray rotor may include: a nozzle body rotatably coupled to the pipe bearing and configured to receive washing water from the pipe bearing; and a base body rotatably supported by the support bearing. Attached Figure Description

[0027] Figure 1 is a perspective view of a dishwasher according to one embodiment.

[0028] Figure 2 is a cross-sectional view showing a section of the dishwasher shown in Figure 1.

[0029] Figure 3 is a front view showing a portion of a dishwasher according to an embodiment.

[0030] Figure 4 is a perspective view showing a portion of a dishwasher according to one embodiment.

[0031] Figure 5 is an exploded view showing the basket, pipes, and jet rotor of Figure 4.

[0032] Figure 6 is a perspective view showing a pipe and a jet rotor according to one embodiment.

[0033] Figure 7 is an exploded perspective view showing the pipe and the jet rotor.

[0034] Figure 8 is a diagram showing the exploded view of the pipe and jet rotor of Figure 7 from another angle.

[0035] Figure 9 is an exploded view showing the jet rotor according to one embodiment.

[0036] Figure 10 is a side view showing the combined structure of the pipe and jet rotor of Figure 6.

[0037] Figure 11 is a cross-sectional view showing the pipe and spraying device of Figure 6 taken along the extension direction of the pipe.

[0038] Figure 12 is a diagram showing the action of the washing water sprayed from the jet rotor from the top side. Detailed Implementation

[0039] The embodiments and configurations shown in the accompanying drawings described in this specification are merely preferred examples of the disclosed invention. At the time of filing this application, there may be various modifications that can replace the embodiments and drawings in this specification.

[0040] Furthermore, the same reference numerals or symbols shown in the various figures of this specification indicate parts or components that perform substantially the same function.

[0041] Furthermore, the terminology used in this specification is for illustrative purposes and is not intended to limit or restrict the disclosed invention. Unless the context clearly specifies otherwise, singular expressions include plural expressions. In this specification, terms such as "comprising" or "having" are used to specify the presence of features, numbers, steps, operations, constituent elements, components, or combinations thereof described in the specification, and do not preclude the presence or additional possibilities of one or more other features or numbers, steps, operations, constituent elements, components, or combinations thereof.

[0042] Furthermore, the ordinal terms such as "first," "second," etc., used in this specification are used to describe various constituent elements, but the constituent elements are not limited to the terms described above; these terms are only used to distinguish one constituent element from other constituent elements. For example, without departing from the scope of the claims of this invention, a first constituent element may be named a second constituent element, and similarly, a second constituent element may be named a first constituent element. The term "and / or" includes a combination of multiple related described items or one of multiple related described items.

[0043] In addition, the terms “vertical direction”, “lower side” and “front and back direction” used in the following description are defined based on the accompanying drawings, and the shape and position of each component are not limited to these terms.

[0044] Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

[0045] Figure 1 is a perspective view of a dishwasher according to one embodiment. Figure 2 is a cross-sectional view showing a section of the dishwasher of Figure 1.

[0046] Referring to Figures 1 and 2, the dishwasher 1 may include a body 10. The body 10 may form the appearance of the dishwasher 1.

[0047] The dishwasher 1 may include a tub 12 disposed inside the main body 10. The tub 12 may form a washing chamber 10a. The tub 12 may be configured in a generally box shape. One side of the tub 12 may be open. That is, the tub 12 may have an opening 12a. As an example, the front of the tub 12 may be open.

[0048] The dishwasher 1 may include a door 11. The door 11 may be configured to open and close the tub 12. The door 11 may be configured as an opening portion 12a for opening and closing the tub 12. The door 11 may be configured to open and close the washing chamber 10a. The door 11 may be disposed on the main body 10 to open and close the tub 12. The door 11 may be rotatably mounted on the main body 10. The door 11 may be detachably mounted on the main body 10.

[0049] The dishwasher 1 may include a storage container 50. The storage container 50 may be fitted inside the tub 12. The storage container 50 can hold tableware. The storage container 50 can hold tableware. The storage container 50 can hold tableware. The storage container 50 can hold tableware.

[0050] The storage container 50 may include at least one basket for storing tableware. The storage container 50 may also include at least one rack assembly for storing tableware. The basket and rack assembly are interchangeable. Of course, the basket described below may be referred to as a rack assembly.

[0051] For example, storage container 50 may include multiple baskets 51, 52, and 53. These multiple baskets 51, 52, and 53 may be configured to store various types of tableware. However, this is not the only possibility. For example, storage container 50 may include only a portion of the multiple baskets 51, 52, and 53. For example, storage container 50 may also include additional baskets besides the multiple baskets 51, 52, and 53. For example, storage container 50 may include a single basket.

[0052] The storage container 50 may include a central basket 52 located in the middle of the height direction of the dishwasher 1. The central basket 52 may be configured to be removed from or introduced into the drum 12. For example, the central basket 52 may be configured to be supported by a central guide (not shown). For example, the central guide (not shown) may be provided on the side 12c of the drum 12 in a manner that allows it to slide toward the opening 12a of the drum 12.

[0053] The storage container 50 may include a lower basket 51 located at the bottom in the height direction of the dishwasher 1. The lower basket 51 may be configured to be removed from or introduced into the tub 12. For example, the lower basket 51 may be configured to be supported by a lower guide 13a. For example, the lower guide 13a may be provided on the side 12c of the tub 12 in a manner that allows it to slide toward the opening 12a of the tub 12.

[0054] Multiple baskets 51 and 52 can store relatively large tableware. However, the types of tableware stored in the multiple baskets 51 and 52 are not limited to relatively large tableware. That is, the multiple baskets 51 and 52 can store not only relatively large tableware, but also relatively small tableware.

[0055] The storage container 50 may include an upper basket 53 located at the top of the dishwasher 1 in the height direction. The upper basket 53 may be configured as a rack assembly to store relatively small tableware. For example, cooking utensils such as spoons, knives, spatulas, and even cutlery may be stored in the upper basket 53. For example, small tableware such as cups may be stored in the upper basket 53. However, this is only an example, and the types of tableware stored in the upper basket 53 are not limited to the examples described above.

[0056] The upper basket 53 can be configured to be removed from or introduced into the bucket 12. For example, the upper basket 53 can slide by means of an upper guide 13c. For example, the upper basket 53 can be configured to be supported by the upper guide 13c. For example, the upper guide 13c can be provided on the side 12c of the bucket 12.

[0057] The dishwasher 1 may include a washing chamber 10a, which is a space formed inside the tub 12. The washing chamber 10a may be defined as the inner space of the tub 12. The washing chamber 10a may represent a space capable of washing and drying dishes placed in the storage container 50 by means of washing water.

[0058] The dishwasher 1 may include a spray device 40 equipped with a spray unit for spraying washing water. The spray device 40 can spray washing water into the washing chamber 10a. The spray device 40 can spray washing water toward the dishes stored in the storage container 50. The spray device 40 can receive washing water from the water collection tank 70 described later.

[0059] The spraying device 40 may include at least one spraying arm. The spraying device 40 may include multiple spraying units 41, 42, and 43.

[0060] For example, the spraying device 40 may include a first spraying unit 41 disposed at the lower part of the lower basket 51 in the height direction of the dishwasher 1. For example, the spraying device 40 may include a second spraying unit 42 disposed at the lower part of the middle basket 52 in the height direction of the dishwasher 1. For example, the spraying device 40 may include a third spraying unit 43 disposed at the upper part of the upper basket 53 in the height direction of the dishwasher 1. However, the number of spraying units is not limited to the examples described above. The spraying device 40 may include two or fewer spraying units. The spraying device 40 may include four or more spraying units.

[0061] Spraying units 41, 42, and 43 may include spray arms. Taking the second spraying unit 42 as an example, a brief description of the operation of the spray arm will be provided. The description of the second spraying unit 42 can be applied to the first spraying unit 41 and / or the third spraying unit 43.

[0062] The second spray unit 42 may include a spray arm. The spray arm may be configured to be rotatable relative to the pipe 100. The spray arm can spray washing water while rotating relative to the pipe 100.

[0063] The spray arm can have a shape that extends in one direction. The spray arm can extend in a direction perpendicular to the axis of rotation. Alternatively, the spray arm can extend along the diameter of a circle drawn as the spray arm rotates.

[0064] The spray arm can be configured to form a flow path for the flow of washing water. The second spray unit 42 may include spray holes for spraying washing water. The spray holes may be formed in the spray arm. For example, multiple spray holes may be configured. For example, multiple spray holes may be arranged spaced apart from each other along the extension direction of the spray arm.

[0065] According to one embodiment of the present disclosure, the injection device 40 may include an injection rotor 200.

[0066] The spray rotor 200 can rotate while spraying washing water. That is, the spray rotor 200 can rotate by spraying washing water. The spray rotor 200 can be rotatably connected to the pipe 100 described later.

[0067] The dishwasher 1 may include a water collection tank 70. The water collection tank 70 may be configured to collect washing water. The water collection tank 70 can collect washing water from the washing chamber 10a. For example, to allow the water collection tank 70 to collect water smoothly, the lower surface 12b of the tub 12 may be configured to slope downwards towards the water collection tank 70. The washing water from the washing chamber 10a can flow along the slope of the lower surface 12b of the tub 12 and smoothly flow into the water collection tank 70. Furthermore, the water collection tank 70 may be configured to supply the collected washing water to the spray device 40.

[0068] The dishwasher 1 may include a circulation pump 71, equipped to pump washing water stored in a water collection tank 70. The circulation pump 71 may be an integral part of the water collection tank 70. For example, the circulation pump 71 may be arranged in the machine compartment 10b. The washing water pumped by the circulation pump 71 may flow to the spray device 40.

[0069] The dishwasher 1 may include a drain pump 72 to drain residual washing water and / or foreign matter (e.g., food scraps, etc.) in the water collection tank 70. The drain pump 72 may be configured as part of the water collection tank 70. For example, the drain pump 72 may be arranged in the machine compartment 10b.

[0070] The dishwasher 1 may include a machine chamber 10b as a space located below the tub 12. The machine chamber 10b may be a location for arranging components for circulating washing water. The dishwasher 1 may include a base frame 16 forming the machine chamber 10b.

[0071] For example, at least a portion of the water collection tank 70 can be arranged in the machine room 10b. Most of the water collection tank 70 can also be arranged in the machine room 10b. That is, the area of ​​the water collection tank 70 located in the washing chamber 10a can be smaller than the area of ​​the water collection tank 70 located in the machine room 10b. By reducing the area occupied by the water collection tank 70 in the washing chamber 10a, the area of ​​the washing chamber 10a can be ensured. Therefore, the capacity of the washing chamber 10a increases, thereby improving the storage capacity of tableware.

[0072] The dishwasher 1 may include a filter assembly 60. The filter assembly 60 may be configured to filter out impurities contained in the wash water flowing into the collection tank 70. The wash water filtered by the filter assembly 60 may be pumped by a circulation pump 71 and supplied to the jet device 40. The filter assembly 60 may be detachably mounted to the collection tank 70. For example, the filter assembly 60 may include at least one of a fine filter, a coarse filter, and a micro filter.

[0073] The dishwasher 1 may include an inflow pipe 14 for allowing washing water to flow from the collection tank 70. Furthermore, the dishwasher 1 may include a pipe 100 for directing the washing water flowing through the inflow pipe 14 to the jet rotor 200.

[0074] Inflow pipe 14 and pipe 100 can be arranged inside tank 12. Piping assemblies can be arranged in washing chamber 10a.

[0075] The inflow pipe 14 can be installed between the water collection tank 70 and the pipe 100. For example, the pipe 100 can be installed between the inflow pipe 14 and the jetting device 40. For example, the inflow pipe 14 and the pipe 100 can be installed as a duct assembly.

[0076] However, not limited to the above example, the inflow pipe 14 and the pipe 100 can be configured as a single unit. In this case, the integrated pipe can directly guide the washing water flowing in from the water collection tank 70 to the spray device 40.

[0077] Figure 3 is a front view showing a portion of a dishwasher according to an embodiment. Figure 4 is a perspective view showing a portion of a dishwasher according to an embodiment. Figure 5 is an exploded view showing the basket, pipes, and jet rotor in Figure 4.

[0078] Referring to Figures 3 to 5, a dishwasher 1 according to one embodiment may include a conduit 100 provided for supplying washing water to a jet rotor 200.

[0079] Pipe 100 can extend in one direction. Pipe 100 can be arranged in a front-to-back direction.

[0080] Pipe 100 can be arranged on the upper side of basket 53. Pipe 100 can be installed on the upper side of basket 53. Pipe 100 can be equipped with washing water for washing dishes supported by basket 53.

[0081] The basket 53 may include a base 531 provided for supporting cutlery. The base 531 may form the base of the basket 53. For example, the base 531 may be formed by lines 53a, 53b described later. The base 521 may be referred to as the base frame.

[0082] The first line 53a and the second line 53b can be arranged orthogonally to each other. As an example, as shown in the figure, the first line 53a can extend in the left-right direction, and the second line 53b can extend in the front-back direction. The first line 53a and the second line 53b can be spaced apart from each other and intersect.

[0083] Multiple lines 53a and 53b can be provided, and multiple lines 53a and 53b can be formed into a single basket 53 through operations such as welding and deep drawing. That is, multiple openings (not shown) can be formed between the first line 53a and the second line 53b.

[0084] The basket 53 may include a side portion 532. The side portion 532 may be configured to surround the bottom 531. The side portion 532 may have a shape extending upward from the edge of the bottom 531. For example, the side portion 532 may be formed into a frame shape by means of lines 53a, 53b described later. The side portion 532 may be referred to as a side frame.

[0085] The bottom 531 may include a horizontally extending horizontal support portion 5311. The horizontal support portion 5311 may form at least a portion of the bottom 531. The horizontal support portion 5311 may horizontally support the tableware.

[0086] The bottom 531 may include inclined support portions 5312a and 5312b for inclined support of tableware. The inclined support portions 5312a and 5312b may extend from the horizontal support portion 5311. The inclined support portions 5312a and 5312b may be formed inclined downwards. That is, tableware supported by the inclined support portions 5312a and 5312b may be placed with the open side facing downwards.

[0087] The inclined support portions 5312a and 5312b may include: a first inclined support portion 5312a and a second inclined support portion 5312b, configured to have different inclinations and / or lengths from each other.

[0088] The first inclined support portion 5312a and the second inclined support portion 5312b can be configured to have different inclinations from each other. As shown in the figure, the inclination of the first inclined support portion 5312a can be less than the inclination of the second inclined support portion 5312b. That is, the first inclined support portion 5312a can have a longer length than the second inclined support portion 5312b. Therefore, the first inclined support portion 5312a can hold taller tableware, and the second inclined support portion 5312b can hold shorter tableware.

[0089] The first inclined support portion 5312a and the second inclined support portion 5312b can support tableware at a predetermined horizontal height. As an example, the first inclined support portion 5312a and the second inclined support portion 5312b can support cups, etc. However, the tableware that can be placed on the first inclined support portion 5312a and the second inclined support portion 5312b is not limited to this, and it is fine to place tableware of any other shape.

[0090] The bottom 531 may include a pipe support 5313 connected to the inclined support portions 5312a, 5312b. The pipe support 5313 may be configured to accommodate the pipe body 110.

[0091] The pipe support 5313 can be arranged in one direction to support the pipe body 110 extending in that direction. As an example, the pipe support 5313 can be arranged in the front-back direction.

[0092] The pipe supports 5313 can be arranged at predetermined intervals. The bottom 531 may include a rotor opening 533a, configured to allow the jet rotor 200 to pass through between the pipe supports 5313. That is, the pipe 100 may be located on the upper side of the pipe supports 5313, and the jet rotor 200 may be located on the lower side of the pipe supports 5313.

[0093] A space may be formed between the first inclined support 5312a and the second inclined support 5312b on the lower side of the pipe support 5313. The jet rotor 200 may be located between the first inclined support 5312a and the second inclined support 5312b.

[0094] The open side of the tableware supported by the inclined support parts 5312a and 5312b can be supported towards the spray rotor 200. The spray rotor 200 can spray washing water into the tableware through the open side of the tableware.

[0095] The pipe 100 may be positioned above the bottom 531. That is, the pipe 100 may be positioned above the horizontal support 5311, the inclined support 5312a, 5312b, and the pipe support 5313 that constitute the bottom 531. In other words, the pipe support 5313, provided for housing the pipe 100, may be positioned above the horizontal bottom 5311. The pipe support 5313 may be located at at least the same height as the horizontal bottom 5311.

[0096] The pipe 100 can be positioned above the bottom 531, so that the spray rotor 200 can be located between the inclined supports 5312a and 5312b. That is, the spray rotor 200 can be configured to face the open side of the tableware, so that the inside of the tableware can be washed evenly.

[0097] Furthermore, the jet rotor 200 can discharge residual water inside the pipe 100. The pipe 100 extends relatively long in one direction, so washing water inside the pipe 100 may not flow and may remain. In particular, after the dishwasher 1 has finished operating, if no washing water is supplied, no washing water flow will occur, and residual water may form inside the pipe 100. The jet rotor 200 is arranged below the pipe 100, so residual water inside the pipe 100 can be discharged to the jet rotor 200.

[0098] Furthermore, since the pipe 100 is located above the bottom 531, the size of the jet rotor 200 located below the pipe 100 can be increased. As the size of the jet rotor 200 increases, the rotational force generated from the propulsion jet port 200a (described later) increases, allowing the rotation of the jet rotor 200 to proceed more smoothly. Furthermore, it prevents the jet rotor 200 from stopping its rotation.

[0099] Furthermore, since the pipe 100 is located on the upper side relative to the bottom 531, the tableware supported by the inclined support parts 5312a and 5312b can also be supported by the pipe 100. Specifically, the tableware can be supported by the inclined support parts 5312a and 5312b and the pipe body 110.

[0100] Furthermore, the pipe 100 is located above the bottom 531, thereby ensuring the vertical length of the jet rotor 200. Specifically, this ensures the length of the nozzle portion 211 of the jet rotor 200, which will be described later. By ensuring the length of the nozzle portion 211, the interior of the nozzle portion 211 can be equipped with a Venturi tube structure with a gradually increasing diameter. That is, the flow rate of the washing water flowing into the nozzle portion 211 can be ensured.

[0101] The pipe 100 can be configured to supply washing water to the jet rotor 200. The jet rotor 200 can be installed on the lower side of the pipe 100. The washing water flowing through the inside of the pipe 100 can flow to the jet rotor 200 by gravity.

[0102] The jet rotor 200 can be arranged on the underside of the pipe 100. The jet rotor 200 can be rotatably connected to the pipe 100. The jet rotor 200 can obtain rotational force from the force of jetting washing water. The jet rotor 200 can rotate and jet washing water on the underside of the pipe 100.

[0103] The spray rotor 200 can rotate while spraying washing water in multiple directions. The spray rotor 200 can spray washing water toward the dishes placed around it.

[0104] Figure 6 is a perspective view showing a pipe and an injection rotor according to one embodiment. Figure 7 is an exploded perspective view showing the pipe and injection rotor. Figure 8 is an exploded view of the pipe and injection rotor of Figure 7 from another angle.

[0105] Referring to Figures 6 to 8, the combined structure of the pipe 100 and the jet rotor 200 will be described.

[0106] The conduit 100 may include a conduit body 110 forming a flow path 110f (see Figure 2) for the flow of washing water. The conduit 100 may be arranged such that the conduit body 110 extends in one direction. For example, the conduit body 110 may be arranged in a front-to-back direction.

[0107] Multiple jet rotors 200 can be configured. Multiple jet rotors 200 can be arranged at predetermined intervals along the extension direction of the pipe 100.

[0108] The pipe 100 may include a plurality of pipe supports 130 configured to rotatably support a plurality of injection rotors 200. That is, the plurality of pipe supports 130 and the plurality of injection rotors 200 may be combined to allow each injection rotor 200 to rotate.

[0109] Although one injection rotor 200 and one pipe support 130 are described in this figure, the description is directly applicable to multiple injection rotors 200 and multiple pipe supports 130.

[0110] The pipe body 110 may include a connection 111 configured to receive washing water from the inflow pipe 14. The connection 111 may be connected to the inflow pipe 14 that receives washing water from the collection tank 70 (see Figure 2). However, it is not limited thereto; for example, the connection 111 may also be directly connected to the collection tank 70.

[0111] The pipe body 110 may include a support guide 112 provided for support by means of a pipe support 5313. The support guide 112 can guide the pipe 100 to be placed on the pipe support 5313.

[0112] The support guide 112 can be supported by the pipe support portion 5313. The support guide 112 may include a contact portion 1121 (see FIG10) configured to be supported by the pipe support portion 5313. Specifically, the contact portion 1121 may be located in front of the pipe body 110 and may be supported by the foremost pipe support portion 5313 of the pipe support portions 5313.

[0113] The pipe body 110 may include an insertion guide 113 configured for inserting at least a portion of the pipe support 5313. The insertion guide 113 may be configured to clamp at least a portion of the pipe support 5313 between the pipe body 110 and the insertion guide 113.

[0114] The pipe support 5313 can be fixed in a state where it is inserted into the gap formed between the insertion guide 113 and the pipe body 110. The insertion guide 113 can be formed as a part of the pipe body 110. It can be configured such that after the pipe support 5313 is inserted between the insertion guide 113 and the pipe body 110, the support guide 112 contacts the foremost pipe support 5313.

[0115] With respect to the pipe body 110, after at least a portion of the pipe support 5313 is inserted into the insertion guide 113, the support guide 112 contacts the foremost pipe support 5313, so that the pipe 100 can be placed in the pipe support 5313 in a manner that allows it to be easily joined to or easily disassembled from the pipe support 5313.

[0116] The pipe supports 5313 can be arranged at predetermined intervals. The bottom 531 may include a rotor opening 533a, configured to allow the jet rotor 200 to pass through between the pipe supports 5313.

[0117] The jet rotor 200 can be attached to the lower side of the pipe 100. With the jet rotor 200 attached to the lower side of the pipe 100, the pipe 100 can be placed on the pipe support 5313. That is, the jet rotor 200 can pass through the rotor opening 533a and be located lower than the pipe support 5313.

[0118] The jet rotor 200 can be rotatably coupled to the pipe 100.

[0119] The pipe 100 may include a pipe bearing 120 for supplying washing water from the pipe body 110 to the jet rotor 200. The pipe bearing 120 may be rotatably coupled to the jet rotor 200.

[0120] The pipe bearing 120 can protrude downward from the pipe body 110. The pipe bearing 120 can be equipped to supply washing water flowing through the flow path 110f (see Figure 2) inside the pipe body 110 to the jet rotor 200.

[0121] The pipe 100 may include a pipe support 130, configured to rotatably support the jet rotor 200 together with the pipe bearing 120.

[0122] The pipe support 130 may include a support bearing 133 disposed facing the pipe bearing 120. The support bearing 133 may be disposed at a predetermined interval from the pipe bearing 120. The jet rotor 200 may be coupled between the pipe bearing 120 and the support bearing 133.

[0123] The pipe support 130 may include an extension 131 extending from the pipe body 110 along the projecting direction of the pipe bearing 120. The extension 131 may form a gap for engaging the jet rotor 200 between the pipe bearing 120 and the support bearing 133.

[0124] The pipe 100 can be integrally formed. Specifically, the pipe body 110, pipe bearing 120, and pipe support 130 can be integrally formed. The pipe body 110 and pipe support 130 can be integrally formed, thereby allowing the spacing between the pipe bearing 120 and the pipe support 130 to be manufactured consistently. Therefore, the tolerances of the jet rotor 200 coupled between the pipe bearing 120 and the pipe support 130 can be minimized.

[0125] Furthermore, the pipe support 130 may comprise an elastically deformable material. The jet rotor 200 may have a height corresponding to the gap between the pipe bearing 120 and the pipe support 130. That is, when the jet rotor 200 is coupled between the pipe bearing 120 and the pipe support 130, the pipe support 130 needs to be elastically deformable. In order to engage the jet rotor 200, a portion of the pipe support 130 needs to be elastically deformed, thereby increasing the gap between the pipe bearing 120 and the pipe support 130. Therefore, the pipe support 130 may be configured to be elastically deformable.

[0126] The pipe support 130 may include a support portion 132 that bends from the extension 131. The support portion 132 may extend in a direction substantially the same as the extension direction of the pipe body 110. That is, the extension 131 and the support portion 132 may be formed substantially orthogonal. However, the shape of the pipe support 130 is not limited to this, and the support bearing 133 may be configured in any shape as long as it is arranged to face the pipe bearing 120.

[0127] The support bearing 133 can be located at the end of the bracket portion 132. In other words, the support bearing 133 can be formed at a position opposite to the position where the bracket portion 132 bends from the extension portion 131.

[0128] The support bearing 133 may include a support end 133a, configured with a cross-sectional area that decreases as it moves toward the jet rotor 200, in order to reduce frictional forces generated while supporting the jet rotor 200.

[0129] The support end 133a may have a generally sharp shape. However, it may be formed as a surface contact to provide a predetermined level of stability for the rotation of the jet rotor 200.

[0130] The jet rotor 200 is capable of rotation. The jet rotor 200 can rotate in a state where it is engaged between the pipe bearing 120 and the support bearing 133. The jet rotor 200 can rotate by jetting washing water.

[0131] The jet rotor 200 may include a nozzle body 210 equipped for receiving washing water. The nozzle body 210 may be rotatably coupled to the pipe bearing 120.

[0132] The jet rotor 200 may include a base body 220 configured to engage with a nozzle body 210 to receive washing water flowing into the nozzle body 210. The base body 220 may together with the nozzle body 210 form a space for internally receiving washing water.

[0133] The base body 220 can be rotatably supported by the pipe support 130.

[0134] The base body 220 may include a recessed portion 221 that is recessed in such a way as to contact the support bearing 133. The recessed portion 221 of the base body 220 may be rotatably supported by the support bearing 133 of the pipe support 130. Specifically, the base body 220 may contact the support end 133a of the support bearing 133.

[0135] The jet rotor 200 may include a propulsion jet port 200a formed on the outer peripheral surface of the jet rotor 200. The propulsion jet port 200a can generate rotational force on the jet rotor 200 by jetting washing water. The propulsion jet port 200a may be formed at a predetermined angle with the radial direction of the jet rotor 200.

[0136] The propulsion nozzle 200a is formed on the outer peripheral surface of the jet rotor 200, thus it can be spaced approximately by the radius of the jet rotor 200. That is, the magnitude of the torque generated by the tangential force of the jet rotor 200 in the force component generated by the washing water ejected from the propulsion nozzle 200a can be maximized.

[0137] The jet rotor 200 may include an upper jet port 210a (see Figure 12), equipped to jet washing water in a direction different from that of the propulsion jet port 200a.

[0138] The upper spray port 210a can be formed in the nozzle body 210. The upper spray port 210a can be formed by the upper spray port forming part 212. The upper spray port 210a can spray washing water upward along the radial direction of the spray rotor 200.

[0139] The upper injection port 210a can be formed along the radial direction of the injection rotor 200. However, it is not limited to this; the upper injection port 210a can be formed at a predetermined angle to the radial direction of the injection rotor 200, similar to the propulsion injection port 200a. That is, the upper injection port 210a can also spray washing water in a manner that generates the rotational force of the injection rotor 200.

[0140] Thus, the upper spray port 210a and the propulsion spray port 200a are configured with different spray directions, thereby improving the efficiency of washing dishes.

[0141] Although the accompanying drawings show one propulsion nozzle 200a and one upper nozzle 210a, this is not the only possible scenario. The position, size, and / or number of the propulsion nozzle 200a and the upper nozzle 210a are not limited to this, and they may have various shapes and / or structures.

[0142] Figure 9 is an exploded view showing the jet rotor according to one embodiment.

[0143] Referring to FIG9, an injection rotor 200 according to an embodiment of the present disclosure may be formed by combining a nozzle body 210 and a base body 220. The injection rotor 200 may include a sealing body 230 provided to cover the joint between the nozzle body 210 and the base body 220.

[0144] The nozzle body 210 may include a nozzle body joint 2101. The nozzle body joint 2101 may be formed along the circumferential direction of the nozzle body 210. The nozzle body joint 2101 may be in a shape that protrudes from the outer peripheral surface of the nozzle body 210.

[0145] The base body 220 may include a base body joint 2201. The base body joint 2201 may be formed along the circumferential direction of the base body 220. The base body joint 2201 may be a shape that protrudes from the outer peripheral surface of the base body 220.

[0146] The nozzle body joint 2101 and the base body joint 2201 can be provided correspondingly to each other. The nozzle body joint 2101 and the base body joint 2201 can be inserted into the joint groove 231 of the sealing body 230 in a joined state.

[0147] The mating groove 231 can accommodate the nozzle body mating portion 2101 and the base body mating portion 2201. That is, the sealing body 230 can cover the gap between the nozzle body mating portion 2101 and the base body mating portion 2201. Therefore, it can prevent washing water from leaking from between the nozzle body mating portion 2101 and the base body mating portion 2201.

[0148] The nozzle body 210 and the base body 220 can together form the propulsion injection port 200a. The nozzle body 210 may include a first injection port forming portion 213. The base body 220 may include a second injection port forming portion 223. That is, the first injection port forming portion 213 and the second injection port forming portion 223 can form the propulsion injection port 200a.

[0149] The propulsion nozzle 200a may not be covered by the sealing body 230. The portions of the sealing body 230 corresponding to the first nozzle forming portion 213 and the second nozzle forming portion 223 may be cut open.

[0150] According to one embodiment of the present disclosure, the base body 220 may include a drainage section 224 formed to prevent water residue.

[0151] Washing water may remain inside the spray rotor 200. Alternatively, food or other contaminants stuck to the tableware may flow into the spray rotor 200 through the push spray port 200a or the upper spray port 210a. As a result, the inside of the spray rotor 200 may become contaminated, or the tableware may be washed with contaminated washing water. Therefore, it is necessary to drain the washing water or food from inside the spray rotor 200.

[0152] The drain section 224 can be formed by recessing it into the inner side of the base body 220. The drain section 224 can be formed inclined downward toward the propulsion nozzle 200a. Washing water or food residue remaining in the drain section 224 can be discharged through the propulsion nozzle 200a.

[0153] Furthermore, residual water inside the pipe 100 can be drained. Since the pipe 100 extends relatively long in one direction, washing water inside the pipe 100 may not flow and may remain inside. In particular, if washing water is not supplied after the dishwasher 1 has finished operating, no washing water flow will occur, and residual water may form inside the pipe 100.

[0154] The jet rotor 200 is located below the pipe 100, so residual water inside the pipe 100 can flow to the jet rotor 200 through the pipe bearing 120. The residual water flowing into the jet rotor 200 can be discharged to the propulsion jet port 200a through the drain section 224.

[0155] Although the jet rotor 200 according to one embodiment of this disclosure is described as having a separate nozzle body 210 and base body 220, it is not limited thereto. The nozzle body 210 and base body 220 can be integrally formed. Moreover, the nozzle body 210, base body 220 and / or sealing body 230 can also be integrally formed. Furthermore, when the nozzle body 210 and base body 220 are integrally formed, a separate sealing body 230 may not be necessary.

[0156] Figure 10 is a side view showing the combined structure of the pipe and jet rotor of Figure 6. Figure 11 is a cross-sectional view showing the pipe and jet device of Figure 6 along the extension direction of the pipe. Figure 12 shows the jet rotor from above to illustrate the effect of the washing water jetted from the jet rotor.

[0157] Referring to Figures 10 to 12, according to an embodiment of the present disclosure, a jet rotor 200 can be rotatably coupled to the lower part of the pipe 100.

[0158] The jet rotor 200 can rotate by jetting washing water flowing through a flow path 110f formed inside the pipe 100. The pipe 100 may be equipped to allow the washing water to move through a pipe bearing 120 protruding from the pipe body 110.

[0159] The nozzle portion 211 of the nozzle body 210 can be rotatably coupled to the pipe bearing 120. The nozzle portion 211 can be coupled to the outside of the pipe bearing 120. Specifically, the nozzle portion 211 can be coupled to surround the pipe bearing 120. The nozzle portion 211 can be coupled with the pipe bearing 120 slightly spaced apart to allow the jet rotor 200 to rotate smoothly.

[0160] The nozzle section 211 may have a flow path cross-sectional area corresponding to the flow path cross-sectional area of ​​the pipe bearing 120, so as to form a distribution flow path P together with the pipe bearing 120.

[0161] The pipe bearing 120 can form a flow path 120f for supplying washing water to the jet rotor 200. The nozzle portion 211 can form a flow path 211f communicating with the flow path 120f of the pipe bearing 120. That is, the diameters of the portions connecting the flow path 120f of the pipe bearing 120 and the flow path 211f of the nozzle portion 211 can be of corresponding sizes. Therefore, the flow rate of the washing water passing through the boundary between the flow path 120f of the pipe bearing 120 and the flow path 211f of the nozzle portion 211 can remain almost unchanged.

[0162] The pipe body 110 may include a bend 114, configured to prevent a decrease in the flow rate of the washing water as it flows through the flow path 110f formed inside the pipe body 110 toward the pipe bearing 120.

[0163] The bend 114 has a curved shape so as not to obstruct the flow of washing water, thus preventing the flow rate of washing water from decreasing. When the washing water flowing through the flow path 110f inside the pipe body 110 flows to the pipe bearing 120, a flow rate above a predetermined level can be ensured.

[0164] The flow path 120f of the pipe bearing 120 can have a constant cross-sectional area. That is, the flow velocity of the washing water flowing inside the pipe bearing 120 can vary little. Conversely, the cross-sectional area of ​​the flow path 211f of the nozzle portion 211 can gradually increase as the washing water flows. That is, the cross-sectional area of ​​the flow path 211f of the nozzle portion 211 can increase as it moves toward the base body 220.

[0165] Accordingly, the washing water flowing through the distribution flow path P can pass through the flow path 120f of the pipe bearing 120, and its flow velocity can decrease as it passes through the flow path 211f inside the nozzle section 211. The flow velocity decreases as the cross-sectional area of ​​the flow path increases, so the flow velocity can slow down as it approaches the base body 220. For example, the flow velocity v1 in the flow path 120f of the pipe bearing 120 can be greater than the flow velocity v2 on the downstream side of the nozzle section 211.

[0166] As described above, the flow velocity at the joint between the pipe bearing 120 and the nozzle portion 211 can be sufficiently high. Therefore, leakage from the gap between the joint between the pipe bearing 120 and the nozzle portion 211 can be minimized.

[0167] However, some washing water may seep into the joint between the pipe bearing 120 and the nozzle portion 211. Even if some washing water seeps into the joint between the pipe bearing 120 and the nozzle portion 211, the friction between the pipe bearing 120 and the nozzle portion 211 can be reduced. Therefore, this helps the rotation of the jet rotor 200.

[0168] The nozzle portion 211 may include sealing portions 2111a and 2111b, which are configured to surround the pipe bearing 120 to prevent washing water from flowing out through the gap between the pipe bearing 120 and the nozzle portion 211.

[0169] The sealing portions 2111a and 2111b can have a size corresponding to the outer diameter of the pipe bearing 120 to accommodate the pipe bearing 120. If the pipe bearing 120 is accommodated in the sealing portions 2111a and 2111b, the washing water passing through the distribution flow path P needs to pass through the first sealing portion 2111a and the second sealing portion 2111b in sequence. That is, a labyrinth seal structure that prevents washing water from flowing out can be formed.

[0170] The sealing part 2111 disclosed herein is merely an example, and the sealing part 2111 may be configured to allow the washing water to undergo more sealing steps.

[0171] The nozzle body 210 may include an upper spray port forming portion 212 configured to form an upper spray port 210a. The upper spray port 210a can spray washing water upward along the radial direction of the spray rotor 200. However, it is not limited to this, and the upper spray port 210a may be configured to have various shapes, sizes and / or positions.

[0172] The efficiency of washing dishes can be improved by equipping the upper spray port 210a and the propulsion spray port 200a with different spray directions. Furthermore, in addition to the upper spray port 210a, a spray port formed on the lower side of the base body 210 can be added. In this case, the spray rotor 200 can spray washing water in more diverse directions.

[0173] Furthermore, although the illustration shows the upper spray nozzle 210a spraying washing water in the same direction as the radial direction of the spray rotor 200, it is not limited to this. The upper spray nozzle 210a may also be arranged to form a predetermined angle with the radial direction of the spray rotor 200, thereby generating rotational force.

[0174] The jet rotor 200 can jet washing water through the propulsion jet port 200a and / or the upper jet port 210a. The jet rotor 200 may include a guide protrusion 222 for guiding the washing water flowing in through the distribution flow path P toward the propulsion jet port 200a and / or the upper jet port 210a.

[0175] The guide protrusion 222 can be formed at a position corresponding to the rotation axis of the jet rotor 200. Therefore, the washing water flowing in through the distribution flow path P can be evenly distributed from the jet rotor 200 in the radial direction via the guide protrusion 222. That is, the washing water flows evenly inside the jet rotor 200, thus allowing the jet rotor 200 to rotate stably. In other words, the washing water inside the jet rotor 200 will not move unevenly, thus preventing unstable rotation of the jet rotor 200.

[0176] Referring to Figures 11 and 12, the force acting on the rotating jet rotor 200 according to an embodiment of the present disclosure will be described.

[0177] The jet rotor 200 can rotate in the opposite direction to the jetting direction of the washing water. Specifically, the washing water jetted from the propulsion jet port 200a can be jetted in the direction formed by the propulsion jet port 200a. That is, the washing water jetted from the propulsion jet port 200a can form a predetermined angle with the radius r1 direction of the jet rotor 200.

[0178] The washing water ejected from the propulsion nozzle 200a can generate propulsion in the opposite direction to Fr, which is the normal component of the direction of the radius r1 of the jet rotor 200. At this time, the distance from the rotation axis of the jet rotor 200 to Fr is equivalent to the radius r1 of the jet rotor 200. Therefore, the torque generated by the washing water ejected from the propulsion nozzle 200a can be the magnitude of Fr multiplied by the magnitude of the radius r1 of the jet rotor 200.

[0179] According to one embodiment of this disclosure, the radius of the spray rotor 200 can be smaller than the radius of the spray arms 41, 42, 43 of the spraying device 40. Therefore, the rotational force occurring in the spray rotor 200 can be smaller.

[0180] However, according to an embodiment of the present disclosure, the connection structure between the pipe 100 and the jet rotor 200 can reduce the frictional force acting on the jet rotor 200 and the torque generated therefrom, thereby enabling the jet rotor 200 to rotate smoothly.

[0181] The jet rotor 200 can be rotatably supported by the pipe bearing 120 and the support bearing 133.

[0182] The jet rotor 200 can rotate while in contact with the support bearing 133. The support bearing 133 can support the base body 220. Specifically, the support bearing 133 can support the recess 221 of the base body 220.

[0183] The support bearing 133 may include a support end 133a having a shape in which the cross-sectional area decreases toward the recess 221 of the base body 220. For the rotation of the jet rotor 200, a smaller contact area between the support bearing 133 and the recess 221 is more advantageous. Therefore, the cross-sectional area of ​​the support end 133a can decrease toward the recess 221.

[0184] However, the support bearing 133 can make contact with a predetermined area to enable the jet rotor 200 to rotate stably. That is, in order to enable the jet rotor 200 to rotate stably, it can be configured to be closer to surface contact than point contact. In this figure, the support end 133a is shown as having a predetermined radius r2.

[0185] That is, the torque caused by the frictional force generated between the support end 133a and the groove portion 221 can be the value of the frictional force multiplied by the radius r2 of the support end 133a. Since the radius r2 of the support end 133a is relatively small, both the frictional force and the resulting torque are likely to be small. Therefore, the jet rotor 200 can rotate smoothly.

[0186] Furthermore, the frictional force between the pipe bearing 120 and the nozzle portion 211 can play a role. This frictional force can be generated between the pipe bearing 120 and the sealing portion 2111. Therefore, the torque caused by the frictional force generated by the jet rotor 200 rotating around the pipe bearing 120 axis can be the value of the frictional force generated between the pipe bearing 120 and the sealing portion 2111 multiplied by a distance equivalent to the distance r3 to the sealing portion.

[0187] Friction may occur between the pipe bearing 120 and the seal 2111 during the rotation of the jet rotor 200, with the pipe bearing 120 as the axis. However, due to the labyrinth seal structure including the first seal 2111a and the second seal 2111b, the contact between the pipe bearing 120 and the seal 2111 can be minimized. That is, the frictional force generated between the pipe bearing 120 and the seal 2111 may be almost ineffective. Therefore, the torque caused by the frictional force generated between the pipe bearing 120 and the seal 2111 may also be almost ineffective.

[0188] As described above, even though the spray rotor 200 is smaller than the spray arms 41, 42, 43 (see Figure 2), the forces that hinder the rotation of the spray rotor 200 can be minimized, thereby allowing the rotation of the spray rotor 200 to proceed smoothly.

[0189] A dishwasher according to one embodiment includes: a tub 12; a basket 50 disposed inside the tub and configured to hold tableware; a spray device 40 including a spray rotor 200 that sprays washing water to wash the tableware, thereby being rotatable; and a conduit 100 including a conduit body 110 configured to supply washing water flow, a conduit bearing 120 configured to rotatably support the spray rotor and supply washing water from the conduit body to the spray rotor, and a conduit support 130 configured to rotatably support the spray rotor together with the conduit bearing, wherein the spray rotor includes: a nozzle body 210 rotatably coupled to the conduit bearing and configured to receive washing water from the conduit bearing; and a base body 220 supported by the conduit support and coupled to the nozzle body to contain washing water flowing into the nozzle body.

[0190] The pipe support may include a support bearing 133, which is arranged facing each other in a straight line with the pipe bearing and has a range in which the cross-sectional area decreases as it approaches the base body.

[0191] The pipe support may include: an extension 131 extending from the pipe body along the protruding direction of the pipe bearing; and a support portion 132 bent from the extension, wherein the support bearing may be located at the end of the support portion.

[0192] The spray rotor may include spray nozzles 200a and 210a, configured to spray washing water from inside the spray rotor toward the tableware.

[0193] The injection port may include a propulsion injection port 200a, which is formed on the outer peripheral surface of the injection rotor.

[0194] The spray nozzle may further include an upper spray nozzle 210a, configured to spray washing water in a direction different from that of the propulsion spray nozzle, and formed in the nozzle body.

[0195] The nozzle body may include a nozzle portion 211 having a flow path cross-sectional area corresponding to the size of the flow path cross-sectional area of ​​the pipe bearing, so as to form a distribution flow path P together with the pipe bearing.

[0196] The pipe body may include a bend 114, which is formed to prevent a decrease in the flow rate of washing water flowing from the pipe body to the pipe bearing.

[0197] The nozzle portion may be configured such that the cross-sectional area of ​​the flow path increases as it moves away from the pipe bearing.

[0198] The nozzle portion may include a sealing portion 2111, configured to surround the pipe bearing to prevent washing water from flowing out between the nozzle portion and the pipe bearing.

[0199] The pipe support may include an elastic material capable of elastic deformation during the period when the jet rotor is attached to the pipe.

[0200] The basket may include a bottom 531 configured to support the tableware, and the pipe body may be located on top of the bottom.

[0201] The bottom may include: inclined support portions 5312a and 5312b, configured to support the tableware at an angle to the lower side; and a pipe support portion 5313, connected to the inclined support portions and configured to accommodate the pipe body.

[0202] The jet rotor can be arranged on the lower side of the pipe body to spray washing water onto the tableware placed on the inclined support.

[0203] The main body of the pipe can extend in one direction, and the pipe bearings and pipe supports can be arranged in multiple ways along the one direction at predetermined intervals. The multiple injection devices can be configured in multiple ways to be rotatably coupled to the multiple pipe supports and the multiple pipe bearings, respectively.

[0204] A dishwasher according to one embodiment may include: a basket 50 including a bottom 531 for supporting tableware; a pipe 100, which is configured to allow washing water to move, including a pipe body 110 located above the bottom, a pipe bearing 120 protruding from the pipe body, and a pipe support 130 including a support bearing arranged facing the ground with the pipe bearing; and a spray rotor 200, which is rotatably coupled between the pipe bearing and the support bearing, as a spray rotor that receives washing water from the pipe bearing and sprays the washing water to wash the tableware.

[0205] The jet rotor may include: a nozzle body 210 rotatably coupled to the pipe bearing and configured to receive washing water from the pipe bearing; and a base body 220 supported by the pipe support and coupled to the nozzle body to contain washing water flowing into the nozzle body.

[0206] The support bearing may include a support end 133a, the diameter of which decreases as it approaches the base body.

[0207] The jet rotor may further include: a propulsion jet port 200a formed on the outer peripheral surface of the jet rotor; and an upper jet port 210a configured to spray washing water in a direction different from that of the propulsion jet port, and formed on the nozzle body.

[0208] A dishwasher according to one embodiment includes: a tub 12; a basket 300 disposed inside the tub and including a bottom for supporting tableware; a conduit 100, configured to allow washing water to move, including a conduit body 110 located above the bottom, a conduit bearing 120 protruding from the conduit body, and a conduit support 130 including a support bearing 133 arranged facing the conduit bearing; and a spray rotor 200, rotatably coupled between the conduit bearing and the support bearing, for receiving washing water from the conduit bearing and spraying the washing water to wash the tableware, wherein the spray rotor includes: a nozzle body 210 rotatably coupled to the conduit bearing and configured to receive washing water from the conduit bearing; and a base body 220 configured to be rotatably supported by the support bearing.

[0209] According to various embodiments of this disclosure, the washing performance of a dishwasher can be improved.

[0210] According to various embodiments of this disclosure, the dishwasher can include a miniaturized spray unit.

[0211] According to various embodiments of this disclosure, the dishwasher can reduce the friction of the bearings.

[0212] The effects achievable by this disclosure are not limited to those mentioned above. Those skilled in the art to which this disclosure pertains can clearly understand other effects not mentioned above through the foregoing description.

[0213] The above description and illustrations have provided specific embodiments. However, the present invention is not limited to the embodiments described above. Anyone skilled in the art can make various modifications and implement the invention without departing from the spirit of the inventive concept described in the claims.

Claims

1. A dishwasher, comprising: bucket; A basket, located inside the bucket, is provided for storing tableware; A spraying device, comprising a spraying rotor, the spraying rotor including a nozzle body and a base body coupled to the nozzle body to form a space together with a base body; and a pipe, comprising a pipe body, a pipe bearing, and a pipe support, wherein the pipe body is capable of supplying washing water, the pipe bearing being rotatably coupled to the nozzle body and configured to supply washing water flowing within the pipe body from the pipe body to the space formed by the base body and the nozzle body, and the pipe support being a pipe support supporting the base body to rotatably support the spraying rotor together with the pipe bearing and configured to spray the washing water supplied to the space formed by the base body and the nozzle body toward the basket by the spraying rotor to wash the tableware contained in the basket.

2. The dishwasher according to claim 1, wherein, The pipe support includes a support bearing facing the pipe bearing and having a cross-sectional area that decreases as it approaches the base body.

3. The dishwasher according to claim 2, wherein, The pipe support includes: an extension extending from the pipe body along the protruding direction of the pipe bearing; and a support portion bent from the extension, wherein the support bearing is located at the end of the support portion.

4. The dishwasher according to claim 1, wherein, The spray rotor includes a spray nozzle that sprays washing water from the space formed by the base body and the nozzle body toward the basket to wash the tableware contained in the basket.

5. The dishwasher according to claim 4, wherein, The injection port includes a propulsion injection port located on the outer peripheral surface of the injection rotor.

6. The dishwasher according to claim 5, wherein, The spray nozzle further includes an upper spray nozzle, formed in the nozzle body, and configured to spray washing water in a direction different from the direction of spraying washing water through the propulsion spray nozzle.

7. The dishwasher according to claim 1, wherein, The nozzle body includes a nozzle portion having a flow path, the flow path having a cross-sectional area corresponding to the cross-sectional area of ​​the flow path of the pipe bearing, so as to form a distribution flow path together with the pipe bearing.

8. The dishwasher according to claim 7, wherein, The main body of the pipe includes a bend to prevent a decrease in the flow rate of the washing water flowing from the main body of the pipe to the pipe bearing.

9. The dishwasher according to claim 7, wherein, The nozzle section is configured such that the cross-sectional area of ​​the flow path of the nozzle section increases as it moves away from the pipe bearing.

10. The dishwasher according to claim 9, wherein, The nozzle portion includes a sealing portion surrounding the pipe bearing to prevent washing water from flowing out between the nozzle portion and the pipe bearing.

11. The dishwasher according to claim 1, wherein, The pipe support includes an elastic material capable of elastic deformation during the arrangement of the nozzle body coupled to the pipe bearing and the base body supported by the pipe support.

12. The dishwasher according to claim 1, wherein, The basket includes a bottom for supporting the tableware, with the pipe body positioned above the bottom.

13. The dishwasher according to claim 12, wherein, The bottom includes: an inclined support portion configured to support the tableware at an angle toward the lower side; and a pipe support portion connected to the inclined support portion and on which the pipe body is placed.

14. The dishwasher according to claim 13, wherein, The jet rotor is located on the lower side of the pipe body to spray washing water onto the tableware supported by the inclined support.

15. The dishwasher according to claim 1, wherein, The dishwasher includes: multiple pipe bearings and multiple pipe supports, arranged at predetermined intervals along the length of the pipe body; the dishwasher includes multiple jet rotors, and the pipe supports in the multiple pipe supports and the pipe bearings in the multiple pipe bearings respectively support the jet rotors of the multiple jet rotors.

Images