Washing machine

Abstract

A washing machine includes: a cabinet; a cylinder which is rotatably arranged inside the cabinet; and a detergent supply device which is provided in the cabinet and supplies detergent to the tub, the detergent supply device comprising: a housing which is fixedly attached to the cabinet and which is connected to a water supply device; a drawer which is installed on the housing so as to be capable of entering and exiting, and which comprises an accommodation part which is formed in a recessed manner so as to accommodate a detergent, and a rotary boss which extends upward from the bottom of the accommodation part; a mixing member which is rotatably disposed in the accommodating part and mixes the detergent in the accommodating part; and a flow path member coupled to the housing above the drawer and forming a flow path through which the washing water supplied from the water supply device is supplied to the drawer, the mixing member including: a rotating shaft into which the rotating boss is inserted, the diameter of the rotating shaft gradually increasing toward the lower end; and a plurality of blades extending in the radial direction from the outer surface of the rotating shaft.

Description

[0001] Cross-references to related applications

[0002] This application claims priority to Korean Patent Application No. 10-2024-0110337, filed on August 19, 2024, the entire contents of which are incorporated herein by reference. Technical Field

[0003] This invention relates to washing machines. Background Technology

[0004] Generally speaking, a washing machine is a household appliance that allows users to put laundry into the washing tub and input an action command to mix detergent and water appropriately to perform the washing operation.

[0005] Modern washing machines are equipped with detergent dispensers that can use both solid and liquid detergents, which are supplied to the washing tub along with the wash water.

[0006] On the other hand, there is a problem that when powdered or solid detergent is added to the detergent supply device, the detergent does not dissolve easily when the temperature of the supplied washing water is low, and it is supplied to the washing tank in a clump state.

[0007] To improve this problem, a washing machine with the following structure has been developed: a fan-shaped mixing component for dissolving powdered or solid detergent is provided in the detergent supply device, and water is sprayed toward the mixing component to force it to rotate.

[0008] Korean Patent Publication No. 10-2022-0099876 (July 14, 2022) discloses a washing machine with a rotating component inside the detergent dispenser. In particular, it discloses a structure in which the connecting part of the agitator is rotatably inserted into a siphon tube protruding from the bottom of the detergent container.

[0009] When supplying washing water into the detergent dispenser, the aforementioned agitator may float due to buoyancy, potentially causing its connection to detach from the siphon tube. If the agitator separates from the siphon tube, the washing water sprayed into the detergent dispenser may cause it to collide with the inner wall of the dispenser, generating noise and potentially damaging the agitator blades. Furthermore, it may result in difficulties in properly mixing the detergent and washing water. Summary of the Invention

[0010] This invention was made to improve the problems described above.

[0011] A washing machine according to an embodiment of the present invention for achieving the objectives described above includes: a cabinet; a drum rotatably disposed inside the cabinet; and a detergent supply device disposed in the cabinet for supplying detergent to the drum, wherein the detergent supply device includes: a housing fixedly mounted in the cabinet and connected to a water supply device; a drawer mounted in the housing for retraction and including: a recessed receiving portion for receiving detergent and a rotating boss extending upward from the bottom of the receiving portion; a mixing component rotatably disposed in the receiving portion for mixing the detergent inside the receiving portion; and a flow path component combined with the housing above the drawer to form a flow path for supplying washing water supplied from the water supply device to the drawer, wherein the mixing component includes: a rotating shaft inserted internally into the rotating boss, the diameter increasing towards the lower end; and a plurality of blades extending radially from the outer surface of the rotating shaft.

[0012] The feature is that the above-mentioned hybrid component further includes: a shaft support portion extending from the inner upper end of the above-mentioned rotating shaft, the shaft support portion being disposed on the upper surface of the above-mentioned rotating boss.

[0013] The aforementioned shaft support includes: a support protrusion that extends a predetermined length downward from the inner upper end of the aforementioned rotating shaft; and a plurality of support seats that extend from the outer surface of the aforementioned support protrusion in the shape of reinforcing ribs.

[0014] The feature is that the lower end of each of the plurality of support seats extends to a point that separates upward from the lower end of the support protrusion.

[0015] The feature is that the end of the support protrusion is formed into a sharp shape, and a recess for placing the end of the support protrusion is formed on the upper surface of the rotating boss.

[0016] The characteristic is that the diameter of the aforementioned rotating boss is constant or increases as it approaches the lower end.

[0017] The characteristic is that the inner diameter of the aforementioned rotating shaft decreases as it approaches the upper end.

[0018] The aforementioned rotating shaft includes: a first portion whose inner diameter decreases linearly from the lower end to the upper side; and a second portion formed at the upper end of the first portion, having a parabolic cross-sectional shape.

[0019] The feature is that the upper surface of the aforementioned rotating boss forms the same surface as the horizontal plane at the point where the aforementioned first part and the aforementioned second part intersect.

[0020] The feature is that a drainage groove is formed at the bottom of the receiving portion corresponding to the edge of the rotating boss, and the lower end of the rotating shaft is located in the drainage groove and separated from the bottom of the drainage groove.

[0021] The aforementioned hybrid component also includes a ring that connects to the lower end of the radial end of the plurality of blades.

[0022] The aforementioned hybrid component further includes an auxiliary wing that connects the radial end of each of the plurality of blades to the upper surface of the ring.

[0023] The feature is that the auxiliary wing extends a predetermined length along the ring at a predetermined height.

[0024] The characteristic is that the side ends of the blade and the auxiliary wing are formed to tilt in the direction of rotation of the blade as they approach the upper end from the lower end.

[0025] The feature is that at least one of the following is formed by bending: the corner where the upper end of the auxiliary wing intersects with the blade, the corner where the upper end of the auxiliary wing intersects with the side end, or the corner where the side end of the auxiliary wing intersects with the ring.

[0026] The washing machine according to the disclosed embodiments can achieve the following effects.

[0027] According to an embodiment of the washing machine, a flow path component is provided above the drawer into which powder detergent is dispensed, and a flow path for supplying water is formed. The flow path component is combined with the outer casing to form a flow path.

[0028] In particular, it has a nozzle for spraying water to rotate the mixing component for dissolving powder detergent and a rinsing hole for washing the container holding powder detergent, thus having the advantage of being able to effectively dissolve powder detergent.

[0029] Furthermore, both the nozzle and the rinsing hole are formed in a flow path component, which can be integrated with the housing to form a flow path. Therefore, by simply combining the housing with the flow path component, a flow path for dissolving and washing powdered detergent can be formed, thus simplifying the overall structure of the detergent supply device and improving production efficiency.

[0030] Furthermore, the nozzle formed on the flow path component sprays water in a direction that intersects with one side of the blades of the aforementioned mixing component, and sprays water at an angle downward, thereby having the advantage of effectively achieving the rotation of the mixing component.

[0031] Furthermore, the water sprayed from the nozzle is angled forward and downward, thereby preventing the powder detergent from splashing within the aforementioned containment section. This has the advantage of preventing contamination of the detergent supply device and maintaining a clean state.

[0032] Furthermore, by forming a ring connecting the lower end of the blade, the sharp corner of the lower end of the blade, which is at an acute angle, is eliminated, thereby preventing injury to the user.

[0033] Furthermore, the length of the rotating boss inserted into the rotating shaft is long enough so that the blades and the nozzle portion of the discharge flow path interfere before the rotating shaft detaches from the rotating boss. Therefore, it has the advantage of avoiding the phenomenon of the mixing component detaching from the rotating boss. Attached Figure Description

[0034] Figure 1 This is a perspective view of a washing machine according to an embodiment of the present invention.

[0035] Figure 2 This is the rear view of the washing machine mentioned above.

[0036] Figure 3 This is a perspective view of the upper frame showing the detergent supply device in the extended position.

[0037] Figure 4 This is a top view of the aforementioned detergent supply device.

[0038] Figure 5 This is a perspective view of the aforementioned detergent supply device.

[0039] Figure 6 This is a split perspective view showing the drawer separated from the outer casing of the aforementioned detergent supply device, viewed from the front.

[0040] Figure 7 This is a split perspective view of the drawer from the rear, showing the drawer separated from the outer casing.

[0041] Figure 8 This is a split perspective view of the aforementioned detergent supply device.

[0042] Figure 9 This is a three-dimensional view of the housing with the flow path components, viewed from the lower front side.

[0043] Figure 10 This is a split perspective view of the aforementioned outer casing and flow path components viewed from above.

[0044] Figure 11 This is a split perspective view of the aforementioned outer casing and flow path components viewed from below.

[0045] Figure 12 This is a top view of the aforementioned flow path components.

[0046] Figure 13 This is a three-dimensional view of the aforementioned flow path components viewed from above.

[0047] Figure 14 This is a three-dimensional view of the aforementioned flow path components viewed from the rear.

[0048] Figure 15 This is a perspective view of the aforementioned flow path components from below.

[0049] Figure 16 yes Figure 5 16-16 cut 3D diagram.

[0050] Figure 17 This is a split-view perspective view of the drawer, mixing components, and storage compartment cover, viewed from above, showing their separated state.

[0051] Figure 18 This is a split perspective view showing the drawer, mixing components, and housing cover separated from the viewer.

[0052] Figure 19 This is a three-dimensional view of the aforementioned hybrid components.

[0053] Figure 20 This is a schematic diagram of the flow path of the washing water supplied to the detergent supply device.

[0054] Figure 21 This is a schematic diagram of the flow state of washing water in the distribution path of the detergent supply device mentioned above.

[0055] Figure 22 This is a schematic diagram showing the configuration of the water supply inlets connected to the various receiving sections of the aforementioned drawers.

[0056] Figure 23 This is a schematic diagram showing the state of spraying washing water into the mixing component through the nozzle of the flow path component.

[0057] Figure 24 This is a schematic diagram showing the state in which washing water falls into the first receiving part through the first flushing hole of the aforementioned flow path component.

[0058] Figure 25 This is a schematic diagram showing the state in which washing water falls into the second receiving section through the second flushing hole formed in the flow path component.

[0059] Figure 26 This is a schematic diagram showing the state of washing water falling into the third receiving section through the third flushing hole of the flow path component.

[0060] Figure 27 This is a perspective view of a hybrid component according to an embodiment of the present invention.

[0061] Figure 28 This is an enlarged perspective view of the rotation axis of the aforementioned hybrid component, viewed from below.

[0062] Figure 29 It is along Figure 27 The longitudinal section view cut from point 29-29.

[0063] Figure 30 This is a longitudinal cross-sectional view showing the state of the hybrid component mounted on the rotating boss. Detailed Implementation

[0064] The specific embodiments of the present invention will now be described in detail with reference to the accompanying drawings. However, the present invention is not limited to the embodiments used to disclose the concept of the present invention. Other inventions can be proposed by adding, changing, or deleting other constituent elements, or other embodiments that are included within the scope of the present invention can be easily proposed.

[0065] Before proceeding with the explanation, let's first define the direction. In this embodiment of the invention, with... Figure 1 , Figure 2 Taking the center point of the washing machine shown as a reference, the direction towards the ground where the washing machine is installed can be defined as downward, the direction towards the surface with the inlet formed on the cabinet can be defined as upward, the direction towards the surface with the back panel can be defined as rearward, and the direction towards the surface opposite to the rearward can be defined as frontward. Furthermore, when undefined directions are mentioned, they will be defined and explained with reference to the respective attached drawings.

[0066] Furthermore, this embodiment of the invention is illustrated using a pulsator-type washing machine with a door formed on its upper surface, through which laundry is inserted. However, it should be stated firstly that the invention is not limited to the structure and form of the washing machine and can be applied to washing machines of all types equipped with a detergent supply device. For example, the invention can be applied to various types of washing machines, including drum washing machines.

[0067] Figure 1 This is a perspective view of a washing machine according to an embodiment of the present invention. Figure 2 This is the rear view of the washing machine mentioned above.

[0068] Reference Figure 1 as well as Figure 2 According to an embodiment of the present invention, the washing machine 1 may include a cabinet 10, an upper frame 12 disposed on the upper surface of the cabinet 10, a door 13 rotatably attached to the upper frame 12, and a control panel 14 mounted on the rear edge of the upper frame 12.

[0069] In detail, the cabinet 10 forms the exterior of the washing machine 1, and the interior can form a washing space.

[0070] As an example, the cabinet 10 can be formed in a hexahedral shape with an open upper surface, and the upper frame 12 covers the open upper surface of the cabinet 10. Furthermore, the upper frame 12 has an inlet 101 (see reference). Figure 3 The aforementioned door 13 opens and closes the aforementioned input port 101.

[0071] Furthermore, a cylinder 11 communicating with the inlet 101 is housed inside the cabinet 10. The upper surface of the cylinder 11 is open and communicates with the inlet 101, and the interior of the cylinder 11 can accommodate a washing tub for holding laundry. The washing tub may include a cylindrical drum. Additionally, a drive device including a motor for driving the drum may be installed inside the cabinet 10.

[0072] As an example, the control panel 14 can be located on the upper surface of the upper frame 12 corresponding to the rear side of the inlet 101. Furthermore, the control panel 14 may include an operating component 141 for operating the washing machine 1. As an example, the operating component 141 may include multiple knobs and buttons. Additionally, the control panel 14 may also include a display for showing the operation of the washing machine 1.

[0073] The rear end of the door 13 is rotatably connected to the upper frame 12, allowing the user to lift or lower the front end of the door 13 to open or close the inlet 101. Furthermore, at least a portion of the door 13 can be made transparent. Therefore, the user can view the interior of the washing tub through the transparent portion of the door 13.

[0074] On the other hand, the back of the cabinet 10 can be formed by a back cover 102. When the back cover 102 is separated or removed, it becomes accessible for maintenance of various components located inside the washing machine 1. For example, when the back cover 102 is separated, the power supply device 16, water level sensor 17, water supply device 15, etc., which are located on the control panel 14, can be replaced or repaired.

[0075] Additionally, a water supply pipe connection 152 may be provided on the back of the aforementioned cabinet 10. A water supply pipe extending from an external water source may be connected to the aforementioned water supply pipe connection 152. The aforementioned water supply pipe connection 152 may be the water supply device 15 described later (see reference). Figure 4 The water supply device 15 includes multiple valves that can be connected to the detergent supply device 20 disposed inside the cabinet 10. The water supply pipe connection 152 may include a hot water pipe connection 152a for supplying hot water and a cold water pipe connection 152b for supplying cold water. The water supply device 15 will be described in more detail below with reference to the accompanying drawings.

[0076] The detergent supply device 20 can be located on one side of the inlet 101, specifically, on the rear side of the inlet 101. The detergent supply device 20 is configured to be pulled forward from the rear edge of the inlet 101, allowing the user to add detergent into it. Furthermore, the detergent supply device 20 is connected to the water supply device 15, so that the detergent added to the detergent supply device 20 mixes with the water supplied from the water supply device 15 and is then supplied to the inside of the drum 11.

[0077] The detergent supply device 20 described above will now be described in more detail with reference to the accompanying drawings.

[0078] Figure 3 This is a perspective view of the upper frame showing the detergent dispenser in the extended position. Figure 4 This is a top view of the aforementioned detergent supply device. Figure 5 This is a perspective view of the aforementioned detergent supply device.

[0079] Reference Figures 3 to 5 An upper frame 12 for forming the input port 101 is attached to the upper surface of the cabinet 10.

[0080] Specifically, the upper frame 12 forms the upper part of the washing machine 1, and the inlet 101 can be opened and closed through the door 13. Additionally, the control panel 14 can be disposed on the rear side of the upper surface of the upper frame 12.

[0081] Furthermore, the detergent supply device 20 can be disposed on the upper frame 12. The detergent supply device 20 can be inserted into a frame opening 121 formed on one side of the inlet 101, specifically on the back side of the inlet 101. Additionally, the detergent supply device 20 is installed inside the upper frame 12 through the frame opening 121. The detergent supply device 20 includes a housing 30 fixed inside the upper frame 12, a drawer 50 connected to the housing 30 in an inward and outward manner, and a flow path member 40 connected to the housing 30 to form a flow path for supplying water to the drawer 50. Furthermore, when the drawer 50 is closed, i.e., inserted inside the housing 30, the front surface of the drawer 50 can form part of the back side of the inlet 101.

[0082] The detergent supply device 20 can be disposed at the lower center of the control panel 14. Additionally, a power supply device 16 for supplying power to drive the washing machine 1 and a water level sensor 17 for detecting the water level in the drum 11 can be respectively provided on the left and right edges of the control panel 14, corresponding to the left and right edges of the detergent supply device 20. Furthermore, a PCB electrically connected to various components, including the operating section, disposed on the front surface of the control panel 14 can be disposed in the central portion of the control panel 14 above the detergent supply device 20.

[0083] Furthermore, the water supply device 15 can be connected to the rear end of the detergent supply device 20. In addition, when the detergent supply device 20 is installed, the water supply device 15 can be exposed to the outside from the back of the washing machine 1 and connected to the water supply pipe.

[0084] The water supply device 15 can be connected to the housing 30 of the detergent supply device 20. Specifically, the water supply device 15 can be positioned at a point offset to the left or right of the back of the housing 30. As an example, the water supply device 915 can be connected to a point closer to the right edge of the back of the housing 30. By positioning the water supply device 15 off-center, the wiring connected to the multiple valves 152, 153, and 154 constituting the water supply device 15 becomes easier. Furthermore, by effectively configuring other electrical components inside the control panel 14, interference with the water supply device 15 can be minimized.

[0085] The aforementioned water supply device 15 may include a water supply body 151 having the aforementioned water supply pipe connection portion 152, and a plurality of valves 153 and 154 connected to the aforementioned water supply body 151. As described above, the aforementioned water supply pipe connection portion 152 may include a hot water connection portion 152a and a cold water connection portion 152b protruding rearward.

[0086] Additionally, the aforementioned valve may include a hot water valve 153 and a cold water valve 154. The hot water valve 153 can selectively supply hot water supplied through the hot water connection 152a to the detergent supply device 20. Furthermore, the cold water valve 154 can selectively supply cold water supplied through the cold water connection 152b to the detergent supply device 20.

[0087] The aforementioned cold water valve 154 may include a first cold water valve 154a and a second cold water valve 154b. The first cold water valve 154a can be understood as a valve that selectively supplies cold water to either the first receiving portion 54 or the second receiving portion 55, which will be described below. Furthermore, the second cold water valve 154b can be understood as a valve that selectively supplies cold water to the third receiving portion 56, which will be described below. The first cold water valve 154a and the second cold water valve 154b are configured to cross each other in a direction away from each other, which can prevent incorrect wiring or minimize the possibility of incorrect wiring.

[0088] On the other hand, an additional water supply section 156 may also be formed in the aforementioned water supply main body 151. The additional water supply section 156 may be configured to directly spray water into the aforementioned drum 11. The additional water supply section 156 can further improve the efficiency of the washing operation. The additional water supply section 156 may extend further to the side of the aforementioned detergent supply device 20. In addition, the additional water supply section 156 is also provided with an additional valve 155, thereby enabling the opening and closing of the flow path for directly spraying water into the aforementioned drum 11.

[0089] The water supply device 15 is connected to the back of the outer casing 30, and the flow path component 40 is installed on the upper surface inside the outer casing 30, thereby forming a flow path communicating with the water supply device 15. Furthermore, the flow path component 40 is positioned above the drawer 50 when the drawer 50 is closed. Therefore, water can fall from above the drawer 50 through the flow path component 40, and the falling water mixes with detergent added inside the drawer 50 before being supplied to the drum 11.

[0090] As an example, the drawer 50 may have a receiving section 53. Specifically, the receiving section 53 may include a first receiving section 54, a second receiving section 55, and a third receiving section 56. Furthermore, the flow path component 40 may have a separate flow path leading to each of the first receiving section 54, the second receiving section 55, and the third receiving section 56. That is, by mounting one flow path component 40 to the housing 30, multiple flow paths are provided that can supply water to each of the multiple receiving sections 54, 55, and 56 formed in the drawer 50.

[0091] The detailed structure of the housing 30, flow path component 40, and drawer 50 constituting the water supply device 15 described above is described in detail below with reference to the accompanying drawings.

[0092] Figure 6 This is a split perspective view showing the drawer separated from the outer casing of the aforementioned detergent supply device, viewed from the front. Figure 7 This is a split perspective view of the drawer from the rear, with the drawer separated from the outer casing. Figure 8 This is a split perspective view of the aforementioned detergent supply device.

[0093] Reference Figures 6 to 8 The aforementioned outer casing 30 can be molded into a box shape with an open front surface, and the interior can form a receiving space 300 for accommodating the aforementioned flow path component 40 and drawer 50. As an example, the aforementioned outer casing 30 can be molded as a single piece by plastic injection molding.

[0094] A water supply device 15 can be connected to the back of the outer casing 30. Water supplied by the water supply device 15 can be supplied to the drawer 50 after passing through the flow path component 40. Therefore, the flow path component 40 can be integrated inside the outer casing 30.

[0095] Specifically, the aforementioned flow path component 40 can be installed on the inner upper surface of the housing 30. Furthermore, the flow path component 40 can form multiple flow paths with openings on its upper surface. Therefore, when the flow path component 40 is installed on the housing 30, one or more flow paths for supplying water to the drawer 50 can be formed through the housing 30 and the flow path component 40. Additionally, with the flow path component 40 installed, the one or more flow paths can communicate with the water supply device 15.

[0096] The aforementioned flow path component 40 can be positioned on the upper side of the drawer 50 when installed on the housing 30. Furthermore, the front end of the flow path component 40 can extend to the front end of the upper surface of the housing 30. Therefore, water can fall onto the drawer 50 across the entire area of ​​the upper surface of the receiving space 300.

[0097] The aforementioned receiving space 300 can accommodate the aforementioned drawer 50. The aforementioned drawer 50 is configured to be accessible through the front surface of the opening in the aforementioned housing 30. The aforementioned drawer 50 can be formed in a drawer shape, and can have a plurality of downwardly recessed receiving portions 53. Detergent for washing can be filled in the plurality of receiving portions 53.

[0098] As an example, the aforementioned receiving section 53 may include a first receiving section 54 for receiving powdered detergent, a second receiving section 55 for receiving liquid detergent, and a third receiving section 56 for receiving fabric softener. Needless to say, the second receiving section 55 or the third receiving section 56 may be omitted if necessary.

[0099] The flow path formed in the flow path component 40 can be formed on the upper side corresponding to the first receiving portion 54, the second receiving portion 55, and the third receiving portion 56. In addition, the water supplied from the water supply device 15 can be diverted to the first receiving portion 54, the second receiving portion 55, and the third receiving portion 56 to achieve independent supply.

[0100] On the other hand, a mixing component 60 may be provided inside the first receiving portion 54. The mixing component 60 may be formed in the shape of a fan or propeller with multiple blades. Furthermore, the mixing component 60 is rotatably disposed in the first receiving portion 54. The mixing component 60 can be driven through a nozzle 451 (see reference 451) formed in the flow path component 40. Figure 15 The sprayed water rotates. The aforementioned mixing component 60 can be defined as a mixing component or a mixing fan.

[0101] With powdered detergent contained in the first receiving section 54, when washing water is supplied through the nozzle 451, the mixing member 60 rotates, simultaneously mixing the washing water and the powdered detergent. Alternatively, the powdered detergent can be supplied to the cylinder 11 in a state where it dissolves in water within the first receiving section 54. For this purpose, at least a portion of the back side of the first receiving section 54 can be formed as an opening.

[0102] A cover 57 may be disposed on the second receiving portion 55 and the third receiving portion 56. The cover 57 is placed on the upper surface of the openings of the second receiving portion 55 and the third receiving portion 56, and may be formed to slope downwards along the recessed shape of the second receiving portion 55 and the third receiving portion 56. Furthermore, cover holes 571, 572, 575, and 576 (see reference) may be formed at the bottom of the recessed portion of the downwardly sloped cover 57 and at the rear end of the cover 57 for supplying water falling from the flow path member 40. Figure 17 In this embodiment, the cover 57 is integrally formed and has recesses corresponding to the second and third receiving portions 55 and 56. However, it can also be configured as separate structures that cover the second and third receiving portions 55 and 56 respectively.

[0103] The above-mentioned outer casing 30 will now be described in more detail with reference to the accompanying drawings.

[0104] Figure 9 This is a perspective view of the housing with the flow path components, viewed from the lower front side. Figure 10 This is a top-view, exploded perspective view of the aforementioned outer casing and flow path components. Figure 11 This is a split perspective view of the aforementioned outer casing and flow path components viewed from below.

[0105] Reference Figures 9 to 11 The aforementioned housing 30 can be configured as a hexahedron with an open front surface and an internal receiving space 300. As an example, the aforementioned housing 30 may include an upper housing surface 31, a lower housing surface 32, a pair of housing side surfaces 33, and a housing back surface 34.

[0106] A housing mounting portion 311 may be formed on the upper surface 31 of the aforementioned housing. The housing mounting portion 311 can be coupled to the aforementioned upper frame 12. As an example, the housing mounting portion 311 may include a boss for fastening the helical body, which may be formed on the frame fastening portion 122 of the aforementioned upper frame 12 (see reference). Figure 3 The corresponding position. In addition, the spiral body that passes through the frame fastening part 122 is fastened to the outer shell mounting part 311, so that the outer shell 30 can be fixed to the upper frame 12.

[0107] Furthermore, a side mounting portion 331 may be formed protruding from the outer surface of the aforementioned housing side 33. Specifically, the aforementioned side mounting portion 331 protrudes laterally from the aforementioned housing side 33, and a spiral extending through the aforementioned side mounting portion 331 is coupled to the aforementioned upper frame 12, thereby allowing the aforementioned housing 30 to be securely fixed inside the aforementioned upper frame 12.

[0108] A stepped housing guide 332 is formed on the side 33 of the aforementioned housing to guide the drawer 50 in and out, and a drawer guide 513 is formed on the drawer 50 (see reference). Figure 17 The drawer guide 513 is placed on the upper surface of the housing guide 332. The housing guide 332 can extend from the front end to the rear end of the housing side 33. In addition, the housing guide 332 is stepped in the center direction of the receiving space 300, so that the drawer guide 513 can be placed on the upper surface of the housing guide 332.

[0109] A drawer limiting portion 333 may be formed at the rear end of the aforementioned outer casing side surface 33. The drawer limiting portion 333 extends from the point where the front end of the aforementioned outer casing side surface 33 separates rearward to the rear end of the aforementioned outer casing side surface 33. In addition, the drawer limiting portion 333 protrudes downward from the upper surface of the aforementioned outer casing 30 and is located above the aforementioned outer casing guide 332.

[0110] Furthermore, an elastic member is installed in the drawer limiting part 333. When the drawer 50 is fully pushed into the outer casing 30, the elastic member presses against the limiting protrusion 514 of the drawer 50 (see reference). Figure 17 The upper surface of the drawer restricts the pulling out of the drawer 50. That is, the drawer 50 can only be pulled out by the user pulling it with a force that overcomes the elasticity of the elastic member.

[0111] A casing outlet 321 can be formed on the lower surface 32 of the casing to allow washing water mixed with detergent in the drawer 50 to fall downwards. Multiple casing outlets 321 can be formed in the area adjacent to the front end 322 of the lower surface 32 of the casing. Furthermore, the front end 322 of the lower surface 32 of the casing can be formed in a rearwardly recessed shape. For example, the front end 322 of the lower surface 32 of the casing can have a shape where the central portion is more recessed than the left and right sides. Therefore, the front end 322 becomes longer than when it is formed in a straight line, allowing the washing water flowing along the lower surface 32 of the casing to fall evenly over a wider area.

[0112] The water supply device 15 can be installed on the back surface 34 of the aforementioned housing. Additionally, a rearwardly protruding connection port 341 can be formed on the back surface 34 of the aforementioned housing. The connection port 341 can be connected to the aforementioned water supply body 151. The connection port 341 may include a hot water port 342 and a cold water port 343. Furthermore, the cold water port 343 may include a first cold water port 343a and a second cold water port 343b.

[0113] The hot water port 342, the first cold water port 343a, and the second cold water port 343b can be arranged side-by-side on the same plane. When the water supply device 15 is installed, the hot water port 342 can be opened and closed by the hot water valve 153, and the first cold water port 343a and the second cold water port 343b can be opened and closed by the first cold water valve 154a and the second cold water valve 154b, respectively. Furthermore, when the flow path component 40 is installed, the hot water port 342, the first cold water port 343a, and the second cold water port 343b are connected to the distribution flow path 43 formed in the flow path component 40.

[0114] The flow path component 40 can be formed to correspond to the dimensions of the upper surface 31 of the housing. As an example, the flow path component 40 can be formed to such that, when mounted on the upper surface 31 of the housing, the front and rear ends of the flow path component 40 extend to the front and rear ends of the upper surface 31 of the housing, and the left and right ends of the flow path component 40 extend to the left and right ends of the upper surface 31 of the housing.

[0115] Furthermore, the rear end of the aforementioned flow path component 40 can extend downwards to connect with the back surface 34 of the aforementioned housing. Additionally, the back surface of the aforementioned flow path component 40 can communicate with the connection port 341 connected to the aforementioned water supply device 15.

[0116] The aforementioned flow path component 40 may be formed with a distribution flow path 43 for supplying water to the aforementioned receiving section 53 and a discharge flow path 44. Furthermore, the aforementioned discharge flow path 44 may be formed with a predetermined recess depth, and by combining with the aforementioned housing 30, separate and independent flow paths can be formed. The structure and function of the aforementioned flow path component 40, including the aforementioned plurality of flow paths 43 and 44, will be described in more detail below with reference to the accompanying drawings.

[0117] Figure 12 This is a top view of the flow path components. Figure 13 This is a three-dimensional view of the flow path components as seen from above. Figure 14 This is a three-dimensional view of the aforementioned flow path components from the rear. Figure 15 This is a perspective view of the flow path components viewed from below. Figure 16 It is along Figure 5 A 3D view of a 16-16 cut section.

[0118] Reference Figures 12 to 16 The aforementioned flow path component 40 may include an upper portion 41, a rear portion 42, and a corner R where the rear end of the upper portion 41 and the upper end of the rear portion 42 intersect. The upper portion 41 may be defined as the surface facing the upper surface 31 of the outer casing. Furthermore, a portion of the upper portion 41 contacts the upper surface 31 of the outer casing, while another portion is recessed, thereby forming a flow path for water to flow through the drawer 50. That is, the upper surface of the openings of the plurality of flow paths formed in the flow path component 40 can be blocked by the upper surface of the upper surface 31 of the outer casing. The corner R may be formed into a rearward bulging and curved shape.

[0119] The rear portion 42 extends downward from the rear end of the upper portion 41. Furthermore, the rear portion 42 can connect with the back surface of the outer casing 30. Additionally, the corner portion R separates from the corner intersecting the upper surface 31 and the back surface 34 of the outer casing, thereby forming a predetermined space between the back surface of the flow path member 40 and the rear corner of the outer casing 30. This predetermined space can be defined as a washing water supply space, communicating with the connection port 341. Therefore, water supplied from the water supply device 15 to the outer casing 30 can be supplied to the upper portion 41 after passing through the washing water supply space. That is, the washing water ejected from the water supply device 15 and impacting the corner portion R naturally flows through the flow path formed in the upper portion 41.

[0120] On the other hand, the aforementioned flow path may include a distribution flow path 43 and a discharge flow path 44. The discharge flow path 44 may supply water supplied from the distribution flow path 43 to the drawer 50.

[0121] As an example, the aforementioned discharge path 44 may include a first discharge path 45 that supplies water to the first receiving section 54, a second discharge path 46 that supplies water to the mixing component 60, and a third discharge path 47. The aforementioned distribution path 43 may divert water supplied from the water supply device 15 to the first discharge path 45, the second discharge path 46, and the third discharge path 47.

[0122] In addition, the above-mentioned discharge path 44 may also include a fourth discharge path 48 for supplying water to the second containment section 55.

[0123] In addition, the above-mentioned discharge flow path 44 may also include a fifth discharge flow path 49 for supplying water to the above-mentioned third containment section 56.

[0124] The aforementioned distribution flow path 43 can extend laterally along the rear end of the aforementioned flow path component 40. Furthermore, the aforementioned distribution flow path 43 can distribute water to the aforementioned first discharge flow path 45, second discharge flow path 46, and third discharge flow path 47. Additionally, the aforementioned distribution flow path 43 can also distribute water to the aforementioned fourth discharge flow path 48.

[0125] Specifically, the aforementioned distribution flow path 43 can be formed at the aforementioned corner R. Furthermore, the aforementioned hot water port 342 and cold water port 343 communicate with the aforementioned distribution flow path 43, thereby allowing hot and cold water to be supplied to the aforementioned distribution flow path 43. The aforementioned hot water port 342 and cold water port 343 can be positioned biased towards one of the left and right edges of the aforementioned distribution flow path 43. The aforementioned hot water port 342 and cold water port 343 can be positioned closer to the first discharge flow path 45 than the aforementioned second discharge flow path 46.

[0126] Furthermore, the aforementioned distribution flow path 43 may be formed with multiple distribution ribs 430. Through the aforementioned distribution ribs 430, water flowing along the aforementioned distribution flow path 43 is diverted to the aforementioned first discharge flow path 45 to fifth discharge flow path 49. In addition, the aforementioned distribution flow path 43 can be understood as a flow path formed between the leftmost distribution rib and the rightmost distribution rib.

[0127] The aforementioned distribution rib 430 may include a guide rib 437 that guides water introduced into the inner side of the flow path component 40 to one side. With respect to the lateral direction of the flow path component 40, the hot water port 342 and the cold water port 343 may be positioned biased to one side. Figure 12 The location is on the right side of the flow path 43. In particular, the aforementioned cold water port 343 can be located at the right end of the aforementioned distribution flow path 43.

[0128] Therefore, the guide rib 437 can be formed at the edge of the distribution flow path 43 corresponding to the location of the cold water port 343. The guide rib 437 can be formed to be bent or inclined with a predetermined curvature so as to guide the water supplied from the cold water port 343 to the left edge side of the distribution flow path 43.

[0129] As an example, the aforementioned guide rib 437 extends forward from the rear end of the aforementioned distribution flow path 43, and can be bent or tilted toward the left edge of the aforementioned flow path component 40.

[0130] The aforementioned distribution rib 430 may further include a first distribution rib 431 that guides the flow of hot and cold water. The aforementioned first distribution rib 431 may be formed at a point where it is bent with a predetermined curvature and separates from the aforementioned guide rib 437 toward the left edge of the aforementioned flow path component 40.

[0131] Specifically, the first distribution rib 431 can bend forward from the rear end of the distribution flow path 43, i.e., the rear end of the flow path component 40. Furthermore, the rear end of the first distribution rib 431 can be located between the hot water port 342 and the cold water port 343. Additionally, the first distribution rib 431 bends forward towards the first discharge flow path 45 and the second discharge flow path 46. Therefore, water discharged from the hot water port 342 can be guided to the first discharge flow path 45 and the second discharge flow path 46 via the first distribution rib 431. Furthermore, water discharged from the first cold water port 34a can be guided to the first discharge flow path 45 and the second discharge flow path 46 via the first distribution rib 431 and the guide rib 437.

[0132] The first distribution rib 431 can extend to the vicinity of the inlet of the fourth discharge flow path 48. Therefore, hot and cold water can be guided along the first distribution rib 431. Furthermore, at least a portion of the supplied hot and cold water can be mixed at the end of the first distribution rib 431 and then guided to the fourth discharge flow path 48. Additionally, the remaining portion of the supplied hot and cold water can be supplied to the first discharge flow path 45, the second discharge flow path 46, and the third discharge flow path 47, which are formed at points separating to the left from the fourth discharge flow path 48.

[0133] Additionally, the rear end side of the aforementioned first distribution rib 431 ( Figure 12An auxiliary rib 436 extends horizontally to the side of the right side of the flow path component 40. This auxiliary rib 436 can extend toward the cold water port 343, specifically toward the first cold water port 343a. Furthermore, the auxiliary rib 436 can extend from the point where it splits downwards from the upper end of the first distribution rib 431. Additionally, the front end of the auxiliary rib 436 can extend forward to connect with the corner R. By forming the auxiliary rib 436, cold water flowing in from the rear of the flow path component 40 is prevented from excessively bypassing downwards, allowing the cold water to flow along the first distribution rib 431 through the plurality of flow paths 45-48 constituting the discharge flow path 44.

[0134] The aforementioned distribution rib 430 may include a second distribution rib 432 that guides the flow of hot and cold water passing through the aforementioned first distribution rib 431. The aforementioned second distribution rib 432 may extend linearly for a predetermined length from the point where it separates from the end of the aforementioned first distribution rib 431 toward the left end of the aforementioned flow path component 40.

[0135] Furthermore, the second distribution rib 432 can extend upwards from the corner R to a predetermined height. Additionally, the second distribution rib 432 can be located at a point where it separates rearwards from the end of the first distribution rib 431. Therefore, hot water discharged from the hot water port 342 flows along the left side of the first distribution rib 431 and then branches onto the front and back surfaces of the second distribution rib 432.

[0136] The second distribution rib 432 extends linearly in the left-right direction to maintain a straight line for the cold and hot water flowing through the first distribution rib 431. Furthermore, it can be designed such that, based on the front-back separation distance between the second distribution rib 432 and the first distribution rib 431, hot water is diverted in a predetermined ratio in the front-back direction, and hot and cold water flow through in an appropriate mixed state.

[0137] At this point, the mixing ratio of hot and cold water can be determined based on the distance between the end of the first distribution rib 431 and the second distribution rib 432 in the front-back direction, and the width of multiple flow paths in the front-back direction with reference to the second distribution rib 432. The width of the multiple flow paths in the front-back direction with reference to the second distribution rib 432 can be understood as representing the width of the flow path between the back of the outer casing 30 and the second distribution rib 432, and the width between the second distribution rib 432 and the front end of the corner R, i.e., the front end of the washing water supply space.

[0138] The aforementioned distribution rib 430 may further include a third distribution rib 433 for guiding water flowing through the first discharge flow path 45 and the second discharge flow path 46. Specifically, the third distribution rib 433 may extend between the first discharge flow path 45 and the second discharge flow path 46. As an example, the front end of the third distribution rib 433 may be positioned closer to the end of the first discharge flow path 45.

[0139] The aforementioned third distribution rib 433 can extend rearward. In addition, the front half of the aforementioned third distribution rib 433 can be formed into a curved shape, and the rear half can extend side by side with the aforementioned second distribution rib 432.

[0140] According to another aspect, the right end (rear end) of the third distribution rib 433 is located at the point where it separates forward from the second distribution rib 432, and at the point where it separates to the right from the left end of the second distribution rib 432, so that the third distribution rib 433 and the second distribution rib 432 can overlap by a predetermined length in the front-rear direction. Furthermore, the third distribution rib 433 extends linearly for a predetermined length in the left direction and then bends forward, so that the left end (front end) of the third distribution rib 433 can be connected to the left edge of the inlet of the first distribution flow path 45. Therefore, washing water flowing towards the front of the third distribution rib 433 is guided to the first discharge flow path 45, and washing water flowing towards the rear of the third distribution rib 433 is guided to the second discharge flow path 46.

[0141] At this time, the cold water passes through the separation space between the second distribution rib 432 and the third distribution rib 433, and mixes with the hot water flowing along the second distribution rib 432, and can then be guided to the second discharge flow path 46. The amount of washing water guided to the second discharge flow path 46 and the mixing ratio of hot and cold water vary depending on the front-to-back separation distance between the second distribution rib 432 and the third distribution rib 433.

[0142] The aforementioned distribution rib 430 may further include a fourth distribution rib 434. The fourth distribution rib 434 is a rib connecting the right end of the inlet of the first discharge flow path 45 and the rear end of the upper part 41, and can be formed to slope forward as it approaches the left side from the right. Specifically, the left and right ends of the inlet of the first discharge flow path 45 can be connected to the third distribution rib 433 and the fourth distribution rib 434, respectively. Therefore, washing water can be guided to the first discharge flow path 45 through the third distribution rib 433 and the fourth distribution rib 434. Furthermore, the flow rate of water distributed to the first discharge flow path 45 and the second discharge flow path 46 can be determined based on the arrangement position and shape of the third distribution rib 433.

[0143] The aforementioned distribution flow path 43 may further include a fifth distribution rib 435. Specifically, the fifth distribution rib 435 extends forward from the rear end of the corner R, and can be positioned between the inlet of the second discharge flow path 46 and the inlet of the third discharge flow path 47. The fifth distribution rib 435 may be formed to curve or extend obliquely forward as it approaches the left side. Furthermore, the fifth distribution rib 435 can be understood as a rib extending from the rear end of the corner R to the front end. Therefore, the rear end of the fifth distribution rib 435 is located behind the second distribution rib 432, and may be located at the point where it separates forward from the rear end of the flow path component 40 (or the back side of the housing 30). Therefore, a portion of the washing water flowing to the left side of the flow path component 40 via the second distribution rib 432 and the third distribution rib 433 can be guided to the third discharge flow path 47.

[0144] The left end of the aforementioned distribution flow path 43 can be defined by the left edge of the aforementioned flow path component 40, and the right end can be defined by the fence 438. Specifically, the fence 438 extends from the rear end of the aforementioned flow path component 40 to the front end of the aforementioned corner R, and can be formed at the point where it separates from the right end of the aforementioned flow path component 40 to the left.

[0145] Furthermore, the aforementioned fence 438 is connected to the left edge of the inlet of the fifth discharge flow path 49, and the right edge of the inlet of the fifth discharge flow path 49 can be defined by the right side of the flow path component 40. Additionally, the aforementioned second cold water port 343b communicates with the inlet of the fifth discharge flow path 49, thereby allowing cold water to be supplied to the fifth discharge flow path 49 independently. That is, the cold water discharged from the aforementioned second cold water port 343b can be supplied only to the fifth discharge flow path 49. The flow path connecting the inlet of the fifth discharge flow path 49 to the back of the housing 30 can be defined as an additional distribution flow path different from the aforementioned distribution flow path 43.

[0146] On the other hand, the inlet (or rear end) of the discharge flow path 44 is connected to the front end of the distribution flow path 43 and can extend forward by a predetermined length. The discharge flow path 44 can be formed by recessing a predetermined depth downward from the upper surface of the upper part 41 or by forming a stepped shape. In addition, the upper surface of the remaining upper part 41, excluding the discharge flow path 44, contacts the bottom of the upper surface 31 of the housing. Therefore, by combining the housing 30 with the flow path component 40, the upper surface of the discharge flow path 44 is blocked, thereby completing the flow path.

[0147] When viewed from above the first receiving section 54, the first discharge path 45, the second discharge path 46, and the third discharge path 47 are arranged within the space defining the first receiving section 54, and are configured to supply washing water to the first receiving section 54.

[0148] Specifically, the first discharge flow path 45 extends forward from the front end of the distribution flow path 43 toward the blades of the mixing component 60. That is, the first discharge flow path 45 can extend toward a point that separates to the right in the axial radial direction from the rotation center of the mixing component 60. In addition, an open nozzle 451 can be formed at the lower end of the front surface of the first discharge flow path 45. The nozzle 451 can open toward the surface of the blade 62, and the shape of the opening of the nozzle 451 can be designed in various shapes.

[0149] On the other hand, the lower surface of the first discharge flow path 45 can extend downwards towards the front end. Furthermore, an open nozzle 451 can be formed at the lower end of the front surface of the first discharge flow path 45. Therefore, water sprayed from the nozzle 451 tilts downwards and impacts the surface of the blade 62, causing the mixing component 60 to rotate. As an example, the inclination angle of the bottom of the first discharge flow path 45 can be designed such that the washing water sprayed from the nozzle 451 intersects the surface of the blade 62 perpendicularly. The nozzle 451 can be defined as the first nozzle 451.

[0150] Furthermore, the first discharge path 45 is located at a point radially separated from the rotation axis 61 of the mixing component 60. The torque generated by the washing water ejected from the nozzle 451 causes the mixing component 60 to rotate. Therefore, the further away the point where the water ejected from the first nozzle 451 strikes the blade surface of the mixing component 60 from the rotation axis 61, the faster the mixing component 60 rotates. Thus, the mixing of washing water and detergent can be optimized, and the extension position of the first nozzle 451 can be appropriately designed according to the rotation speed of the mixing component 60.

[0151] The first discharge flow path 45 provides only a flow rate sufficient to rotate the mixing component 60 at a predetermined speed, so the width of the first discharge flow path 45 can be designed to be narrower than the width of the second discharge flow path 46.

[0152] The second discharge flow path 46 extends forward from the distribution flow path 43 and can extend through the center of the first receiving portion 54. Additionally, the left edge of the second discharge flow path 46 can extend forward from the end of the fifth distribution rib 435. Furthermore, the second discharge flow path 46 can extend to the front end of the first receiving portion 54. Additionally, the second discharge flow path 46 can extend to the front end of the flow path component 40. The first receiving portion 54 can be defined as including a portion curved along the circumferential surface of the mixing component 60. The recessed portion at the upper end of the front surface of the first receiving portion 54 can be understood as a guide portion formed to collect splashed washing water in the first receiving portion 54.

[0153] The second discharge path 46 can be configured such that water for dissolving the powdered detergent filled inside the first receiving portion 54 and rinsing off detergent adhering to the surface of the first receiving portion 54 falls from the upper side of the first receiving portion 54. For this purpose, the second discharge path 46 can have a plurality of rinsing holes 463. The rinsing holes 463 are evenly arranged within the first receiving portion 54, thereby minimizing the presence of powdered detergent residue inside the first receiving portion 54. The rinsing holes 463 can be defined as first rinsing holes 463 to distinguish them from the second rinsing hole 481 and the third rinsing hole 491 described later.

[0154] Furthermore, the aforementioned second discharge path 46 may include a main body 461 extending forward from the aforementioned distribution path 43 and extension portions 462 extending to both sides from the front end of the main body 461. That is, the main body 461 may be designed in a shape corresponding to the main body of the arrow, and the extension portions 462 may be designed in a shape corresponding to the head of the arrow.

[0155] Furthermore, multiple first flushing holes 463 may be formed along the main body 461 and the extension 462. The first flushing holes 463 may be formed to penetrate the flow path member 40 in a vertical direction. Additionally, the first flushing holes 463 may be formed in a nozzle-shaped flushing portion 466 protruding downwards from the lower surface of the flow path member 40. However, depending on the shape of the flushing portion 466 or the arrangement of the first flushing holes 463, the first flushing holes 463 may also penetrate the flow path member 40 at a downward angle, rather than penetrating vertically downwards.

[0156] The main body 461 extends from the distribution flow path 43 and can extend further forward via the center of the mixing component 60. Additionally, the extension 462 extends from the front end of the main body 461 to the front surface edge of the flow path component 40, and can extend to the left and right sides with respect to the main body 461. At least a portion of the edge of the extension 462 can be formed with a curvature corresponding to the curvature of the front surface edge of the first receiving portion 54. The first flushing hole 463 can be formed in both the main body 461 and the extension 462.

[0157] Additionally, the first flushing hole 463 may include a main flushing hole 464 formed on the main body portion 461 and an extended flushing hole 465 formed on the extension portion 462. Multiple main flushing holes 464 may be formed and may be positioned to overlap with the mixing component 60 when viewed from above.

[0158] As an example, the main flushing hole 464 can be formed on a vertical line through the rotating shaft 61 of the mixing component 60. Therefore, washing water passing through the main flushing hole 464 can fall to the tip of the rotating shaft 61 and flow along its surface, simultaneously washing away any powdered detergent adhering to the rotating shaft 61. Alternatively, the main flushing hole 464 can also be formed on the upper side of the blades 62 of the mixing component 60. Therefore, washing water falling from the main flushing hole 464 can rinse away any powdered detergent adhering to the surface of the blades 62.

[0159] Multiple extended flushing holes 465 can be separately arranged along the front end of the extended portion 462. Furthermore, when viewed from above, the extended flushing holes 465 can be located directly above the curved front surface of the first receiving portion 54. For example, the front surface of the first receiving portion 54 is curved, so the multiple extended flushing holes 465 can also be arranged on a virtual front surface arc extending along the front surface of the first receiving portion 54. Additionally, one or more extended flushing holes 465 can be further formed at a point corresponding to the edge of the blade 62 and the rotation axis 61. In this case, the position of the extended flushing holes 465 can be formed at a point corresponding to the ring 63 of the mixing component 60. Therefore, water falling from the main flushing hole 464 can wash away the powdered detergent adhering to the blade 62, especially to the ring 63.

[0160] The third discharge path 47, used for washing powdered detergent adhering to the surface of the blade 62, can be disposed to the side of the second discharge path 46. Furthermore, taking the second discharge path 46 as a reference, the first discharge path 45 and the third discharge path 47 can be disposed side-by-side on opposite sides of each other. The surface (back side) of the blade 62 impacted by the washing water discharged from the third discharge path 47 can be understood as the opposite surface (front surface) of the blade 62 impacted by the washing water sprayed from the nozzle 451 of the first discharge path 45.

[0161] The aforementioned third discharge flow path 47 can extend forward from the aforementioned distribution flow path 43. The aforementioned third discharge flow path 47 can be recessed in the aforementioned upper portion 41. In addition, the aforementioned third discharge flow path 47 can extend to a position where, when viewed from above, it overlaps with at least a portion of the aforementioned mixing component 60 in the vertical direction. Similar to the aforementioned first discharge flow path 45, the aforementioned third discharge flow path 47 can be formed such that its bottom slopes downward as it approaches the front.

[0162] A second nozzle 471 may be formed at the lower end of the front surface of the third discharge flow path 47, spraying water in a direction opposite to the rotation direction of the mixing component 60. The second nozzle 471 may be formed at the lower end of the third discharge flow path 47. In addition, the water sprayed from the second nozzle 471 is directed toward the back of the blade 62.

[0163] Furthermore, the width of the third discharge flow path 47 is smaller than the width of the first discharge flow path 45, resulting in a lower flow rate in the third discharge flow path 47. Therefore, it is possible to prevent the mixing component 60 from rotating in reverse or stopping due to water ejected from the second nozzle 471. Additionally, the second nozzle 471 can be located behind the first nozzle 451. That is, the first discharge flow path 45 can extend in front of the third discharge flow path 47.

[0164] Furthermore, the interval between the left side of the third discharge flow path 47 and the second discharge flow path 46 can be designed to be smaller than the interval between the right side of the first discharge flow path 45 and the second discharge flow path 46. According to another aspect, it can be interpreted that the distance between the third discharge flow path 47 and the rotation axis of the mixing component 60 can be designed to be smaller than the distance between the first discharge flow path 45 and the rotation axis of the mixing component 60.

[0165] In detail, the reverse rotational torque M2 of the washing water ejected from the second nozzle 471 acts on the mixing component 60 in the opposite direction to the forward rotational torque M1 of the washing water ejected from the first nozzle 451. Therefore, by making the resulting reverse rotational torque M2 smaller than the forward rotational torque M1, the obstruction to the forward rotation of the mixing component 60 can be minimized.

[0166] On the other hand, the fourth discharge path 48 can be located above the second receiving portion 55. The fourth discharge path 48 can extend forward from the distribution path 43. The fourth discharge path 48 can be formed in front of the first distribution rib 431, and the inlet of the fourth discharge path 48 can be formed at a position separating forward from the front end of the first distribution rib 431. More specifically, the front end of the first distribution rib 431 can be located between the left and right edges of the fourth discharge path 48. Furthermore, the fourth discharge path 48 can extend further forward via the center of the second receiving portion 55.

[0167] The aforementioned fourth discharge passage 48 may be recessed downward from the aforementioned upper portion 41. Furthermore, the aforementioned fourth discharge passage 48 may have a plurality of second flushing holes 481. The aforementioned second flushing holes 481 are formed through the opening of the aforementioned fourth discharge passage 48, and can be configured such that water supplied to the aforementioned fourth discharge passage 48 falls downward.

[0168] The aforementioned second flushing hole 481 may include a plurality of first front holes 482 and a plurality of first rear holes 483. The first front holes 482 may be formed at positions corresponding to the first front cover holes 571 of the receiving cover 57 of the second receiving portion 55. The first rear holes 483 may be formed at positions corresponding to the first rear cover holes 572 of the receiving cover 57. Therefore, the first rear holes 483 may be located behind the first front holes 482.

[0169] The fifth discharge flow path 49 can be located above the third receiving section 56. The fifth discharge flow path 49 extends forward from the distribution flow path 43. The fifth discharge flow path 49 communicates with an additional distribution flow path formed between the fence 438 and the right side of the flow path member 40, and the width of the fifth discharge flow path 49 can be greater than the width of the additional distribution flow path. That is, the right side of the fifth discharge flow path 49 is defined by the right side of the flow path member 40, and the left side of the fifth discharge flow path 49 can be formed at the point where it separates to the left from the fence 438.

[0170] The additional distribution flow path is positioned in front of the second cold water port 343b, supplying the washing water flowing in from the second cold water port 343b to the fifth discharge flow path 49. Furthermore, the fifth discharge flow path 49 can extend further forward from the center of the third receiving section 56.

[0171] The aforementioned fifth discharge flow path 49 can be recessed downward from the aforementioned upper part 41. Furthermore, the aforementioned fifth discharge flow path 49 may have a plurality of third flushing holes 491. The aforementioned third flushing holes 491 are formed through the opening of the aforementioned fifth discharge flow path 49, and can be configured so that water supplied to the aforementioned fifth discharge flow path 49 falls downward.

[0172] The third flushing hole 491 may include a plurality of second front holes 492 and a plurality of second rear holes 493. The number of second front holes 492 is greater than the number of second rear holes 493, thereby allowing more water to be supplied to the rear side compared to the front side of the third receiving portion 56.

[0173] The second front hole 492 can be formed at a position corresponding to the second front cover hole 575 of the receiving cover 57 disposed on the third receiving portion 56. The second rear hole 493 can be formed at a position corresponding to the second rear cover hole 576 of the receiving cover 57. Therefore, the second rear hole 493 is located behind the second front hole 492.

[0174] On the other hand, the rear side of the aforementioned rear portion 42 may be recessed to form a plurality of drainage portions 421. These drainage portions 421, designed to prevent backflow of water supplied to the interior of the housing 30, are recessed forward from the rear side of the rear portion 42 and can extend from the upper end to the lower end of the rear portion 42. Furthermore, the plurality of drainage portions 421 can be arranged separately in the width direction of the rear portion 42. Therefore, when the water pressure supplied from the water supply device 15 is high, a portion of the supplied water flows downward through the drainage portions 421 towards the rear side of the housing 30. Through the plurality of drainage portions 421, even if the water pressure supplied from the water supply device 15 suddenly increases, backflow of water into the water supply device 15 or the water supply pipe connection 152, preventing leakage, can be prevented.

[0175] Side guides 412 may be formed at both ends of the flow path component 40. The side guides 412 may extend rearward from the front end of the flow path component 40 by a predetermined width along the side edge of the flow path component 40. Furthermore, a side limiting portion 413 may protrude downward from the bottom of the side guide 412. The side limiting portion 413 protrudes downward from the front end of the side guide 412, so that when the drawer 50 is pulled out to the maximum extent, the side limiting portion 413 interacts with the limiting protrusion 514 formed on the drawer 50 (see reference). Figure 17 This creates interference and can prevent the drawer 50 from falling off.

[0176] With the flow path component 40 installed on the housing 30, the side guide 412 can be positioned above the housing guide 332. Furthermore, with the drawer 50 pushed in, the drawer guide 513 can be positioned between the housing guide 332 and the side guide 412.

[0177] Furthermore, the bottom of the side guide 412 can contact the upper end of the limiting protrusion 514 of the drawer guide 513. In addition, when the drawer 50 is pulled out to its maximum extent, the upper end of the limiting protrusion 514 is hooked on the side limiting part 413 to prevent the front end of the drawer 50 from drooping downward.

[0178] On the other hand, sidewalls 411 may be formed on both sides of the flow path member 40 corresponding to the bottom of the side guide 412. The sidewalls 411 extend downward from the outermost edge of the bottom of the side guide 412 and extend rearward for a predetermined length, so that they contact the side of the housing 30 when the flow path member 40 is installed on the housing 30. Therefore, the drawer guide 513 is placed between the lower end of the sidewall 411 and the upper surface of the housing guide 332.

[0179] Specifically, the drawer 50 may include a drawer body 51 having the aforementioned receiving portion 53 and a drawer handle 52 formed on the front surface of the drawer body 51. The drawer handle 52 may be configured to cover the frame opening 121 when the drawer 50 is pushed in. Furthermore, by inserting a finger into the grip groove 520 formed between the back of the drawer handle 52 and the front surface of the drawer body 51 and pulling the drawer handle 52 forward, the drawer 50 can be pulled out.

[0180] The drawer 50 described above will now be explained in more detail with reference to the accompanying drawings.

[0181] Figure 17 This is a top-down perspective view of the drawer, assembly components, and storage compartment cover in a disassembled state. Figure 18 This is a perspective view of the drawer, the mixing components, and the receiving compartment cover from below, showing them disassembled. Figure 19 This is a three-dimensional view of the aforementioned hybrid components.

[0182] Reference Figures 17 to 19 The drawer 50 is configured as a drawer with an open upper surface, which can be inserted into the receiving space of the outer casing 30 or pulled forward from the receiving space.

[0183] Specifically, the aforementioned receiving portion 53 may be recessed on the upper surface of the drawer body 51. The receiving portion 53 may include the aforementioned first receiving portion 54 for mounting the aforementioned hybrid component 60. In addition, the receiving portion 53 may also include a second receiving portion 55 and a third receiving portion 56 arranged side by side on the side of the first receiving portion 54.

[0184] The upper surface and back surface of the first receiving portion 54 are formed into openings, which can accommodate the mixing component 60. In addition, a rotating boss 541 is formed on the bottom of the first receiving portion 54 for rotatably mounting the mixing component 60. Therefore, the mixing component 60 can rotate within the first receiving portion 54 about the rotating boss 541 as the central axis.

[0185] The front surface of the first receiving portion 54 is formed into a curved surface. Specifically, it is curved with a radius of curvature slightly larger than the radius of rotation of the mixing component 60, so that it will not interfere with the mixing component 60 when the mixing component 60 rotates. Therefore, after the mixing component 60 is received in the first receiving portion 54, the edge of the mixing component 60 is adjacent to but not in contact with the inner surface of the first receiving portion 54.

[0186] Furthermore, the two sides of the first receiving portion 54 extend parallel to each other. Therefore, the dissolved powdered detergent and water inside the first receiving portion 54 can be smoothly discharged to the back side of the opening of the first receiving portion 54.

[0187] Furthermore, a rear plate 542 may be formed on the back side of the opening of the first receiving portion 54. The rear plate 542 may extend horizontally in such a way that it connects multiple rear ends of the two sides of the first receiving portion 54 at points separating upwards from the bottom of the first receiving portion 54. The rear plate 542 prevents the powder detergent inside the first receiving portion 54 from being discharged all at once. Additionally, the rear plate 542 prevents the mixing component 60 from detaching from the outside of the first receiving portion 54. The rear plate 542 may be formed at a point closer to the bottom than the upper surface of the first receiving portion 54.

[0188] Additionally, one or more drainage channels 543 extending rearward may be formed at the bottom of the first receiving portion 54. The drainage channels 543 allow for easy discharge of powdered detergent and water from inside the first receiving portion 54.

[0189] The mixing component 60 is configured in a fan shape and, while rotating inside the first receiving portion 54, can mix the powdered detergent and washing water introduced into the first receiving portion 54. The mixing component 60 may include a rotating shaft 61 (or hub) mounted on the rotating boss 541 and a plurality of blades 62 extending from the rotating shaft 61. The mixing component 60 may be named a mixing fan, propeller, or helix.

[0190] The aforementioned rotating shaft 61 is formed at the center of the aforementioned mixing component 60, and can serve as the rotation center of the aforementioned mixing component 60. Furthermore, the lower surface of the aforementioned rotating shaft 61 is formed into an opening, allowing the aforementioned rotating boss 541 to be inserted into the interior of the aforementioned rotating shaft 61. The aforementioned rotating boss 541 rotatably supports the aforementioned rotating shaft 61 within the aforementioned rotating shaft 61.

[0191] The blade 62 is formed with an angle of less than 90 degrees relative to the bottom surface of the receiving portion 53, and is tilted such that the upper end of the blade 62 is located at a point on the vertical plane passing through the lower end of the blade 62 toward the rotation direction of the blade 62. That is, the blade 62 can be formed to tilt toward the rotation direction of the mixing member 60 as it approaches the upper end from the lower end. Therefore, when the mixing member 60 rotates, the powder detergent at the bottom of the first receiving portion 54 can be effectively mixed.

[0192] Furthermore, the blade 62 can be tilted so as to be orthogonal to the extension line of the first nozzle 451. Therefore, when water jetted from the first nozzle 451 impacts the front surface of the blade 62 perpendicularly, the blade 62 can be rotated.

[0193] Additionally, the mixing component 60 may include a ring 63. The ring 63 is circular and may be formed at the edge of the mixing component 60. The ring 63 may connect to the ends of the plurality of blades 62. The ring 63 serves to minimize sloshing and stably maintain the rotational state when the mixing component 60 rotates. Furthermore, it may guide the powdered detergent mixed between the plurality of blades 62 to collect inside the ring 63.

[0194] Furthermore, an auxiliary wing 64 may be formed at the end of the blade 62. The auxiliary wing 64 can extend from the end of the blade 62 along the ring 63. Therefore, water and powdered detergent flowing along the blade 62 will not splash outside the mixing component 60, but can be guided to the inside of the mixing component 60 for mixing.

[0195] The drawer body 51 may also include a second receiving section 55 and a third receiving section 56. The second receiving section 55 and the third receiving section 56 may be arranged side by side to the side of the first receiving section 54. The second receiving section 55 and the third receiving section 56 may have the same shape, but different positions.

[0196] The following description focuses on the shape of the second containment section 55, and the detailed description of the third containment section 56 is omitted. Needless to say, the second containment section 55 or the third containment section 56 can be omitted as needed.

[0197] The upper surface of the second receiving portion 55 can be formed as an opening and recessed downwards. Furthermore, the open upper surface of the second receiving portion 55 can be formed as a quadrilateral shape. Additionally, the bottom of the second receiving portion 55 can be formed to slope downwards towards the rear end. Furthermore, a siphon tube boss 551 protruding upwards can be formed on the rear side of the bottom of the second receiving portion 55. A hollow 552 penetrating vertically through the siphon tube boss 551 is formed inside the siphon tube boss 551, allowing washing water containing dissolved detergent added to the second receiving portion 55 to drain below the drawer 50. Furthermore, a siphon tube recess 553 can be formed at the lower edge of the siphon tube boss 551.

[0198] Additionally, the drawer 50 may also include a cover 57 placed in the second receiving section 55. The cover 57 may be configured as a single cover that simultaneously covers both the second receiving section 55 and the third receiving section 56, or it may be configured as two separate covers.

[0199] The edge of the aforementioned receiving cover 57 can be placed on a stepped portion 511 that forms a height difference along the upper surface edges of the second receiving portion 55 and the third receiving portion 56. Furthermore, a siphon extension portion 573 extends downward from the bottom surface of the aforementioned receiving cover 57. The siphon extension portion 573 is configured as a barrel shape with an opening 574 formed on its lower surface. When the receiving cover 57 is placed on the second receiving portion 55, the siphon boss 551 can be inserted into the siphon extension portion 573.

[0200] Furthermore, the lower end of the aforementioned siphon extension 537 can be positioned within the aforementioned siphon recess 553. In this case, the lower end of the aforementioned siphon extension 573 is located below the bottom surface of the aforementioned second receiving portion 55, separating from the bottom surface of the aforementioned siphon recess 553. In other words, the lower end of the aforementioned siphon extension 573 can be located between the bottom of the aforementioned second receiving portion and the bottom of the aforementioned siphon recess 553. Therefore, when water and detergent are supplied to the aforementioned second receiving portion 55, the detergent mixture fills the space formed between the outer surface of the aforementioned siphon boss 551 and the inner surface of the aforementioned siphon extension 537. Additionally, when the water level reaches the upper surface of the aforementioned siphon boss 551, it can be discharged downwards into the drawer 50 through the aforementioned hollow 552 by the action of the siphon.

[0201] On the other hand, the aforementioned receiving cover 57 may have a first front cover hole 571 and a first rear cover hole 572. The periphery of the aforementioned first front cover hole 571 may be inclined to guide water falling from the upper second flushing hole 481 through the aforementioned first front cover hole 571.

[0202] The first rear cover hole 572 can be formed behind the first front cover hole 571. Alternatively, the first front cover hole 571 can be formed in front of the siphon extension 573, and the first rear cover hole 572 can be formed behind the siphon extension 573. The first rear cover hole 572 can be recessed forward from the rear end of the receiving cover 57, forming a through hole through the rear edge of the first receiving portion 55 when the receiving cover 57 is placed in the drawer 50. Furthermore, the through hole is located directly below the second flushing hole 481, and washing water falling from the second flushing hole 481 fills the interior of the second receiving portion 55 after passing through the through hole.

[0203] On the other hand, when viewed from above, at least a portion of the first rear cover hole 572 overlaps with the siphon tube recess 553. Therefore, a portion of the washing water passing through the first rear cover hole 572 falls directly into the siphon tube recess 553.

[0204] On the other hand, the third receiving portion 56 may have the same structure and shape as the second receiving portion 55. That is, the third receiving portion 56 may have a siphon tube boss 561 with a hollow 562 and a siphon tube recess 563. In addition, the receiving portion cover 57 may cover the third receiving portion 56. The receiving portion cover 57 may have a siphon tube extension 577 for inserting the siphon tube boss 561. In addition, the receiving portion cover 57 may have a second front cover hole 575 and a second rear cover hole 576. The structure and shape of the second front cover hole 575 and the second rear cover hole 576 may be the same as the first front cover hole 571 and the first rear cover hole 572.

[0205] Furthermore, a hook portion 512 may be formed on the upper surface of the drawer body 51. The hook portion 512 protrudes from the upper surface of the drawer body 51 and may be configured as a hook shape capable of elastic deformation. Additionally, when the drawer 50 is pulled out to its maximum extent, the hook portion 512 is engaged with the outer casing 30 or the flow path component 40, preventing the drawer 50 from separating. Undoubtedly, the user can also pull the drawer 50 with a force exceeding the elasticity of the hook portion 512, thereby separating the drawer 50 from the outer casing 30.

[0206] Furthermore, drawer guides 513 can extend a considerable length in the front-to-back direction on both the left and right sides of the drawer body 51. These drawer guides 513 can extend from the drawer handle 52 to the rear end of the drawer body 51. Additionally, the drawer guides 513 are positioned within the outer casing guide 332, thereby guiding the sliding of the drawer 50 in and out.

[0207] An upwardly protruding limiting protrusion 514 may be formed at the rear end of the drawer guide 513. When the drawer 50 is pulled out to its maximum extent, the limiting protrusion 514 is engaged with and limited by the drawer limiting portion 333, thereby preventing the drawer 50 from separating.

[0208] The water flow state of the detergent supply device 20 having the structure described above will now be described in detail with reference to the accompanying drawings.

[0209] Figure 20 This is a schematic diagram of the flow path of the washing water from the detergent supply device. Figure 21 This is a schematic diagram showing the flow state of washing water in the distribution path of the aforementioned detergent supply device. Figure 22 This is a schematic diagram showing the configuration of the water supply inlets connected to the various receiving sections of the aforementioned drawers.

[0210] Reference Figures 20 to 22 Based on the operation of the water supply device 15, water is supplied to the interior of the outer casing 30. That is, by selectively operating the hot water valve 153 and the cold water valve 154, water can be supplied to the hot water port 342 and the cold water port 343. At this time, the cold water supplied from the second cold water port 343b can be directly supplied to the fifth discharge flow path 49 via the additional distribution flow path, thereby supplying the third receiving section.

[0211] Water supplied from the hot water port 342 and the first cold water port 343a flows into the distribution flow path 43. The hot water flowing in through the hot water port 342 and the cold water flowing in through the first cold water port 343a mix in the distribution flow path 43 and flow along the distribution flow path 43, while being guided to the discharge flow path 44.

[0212] In detail, the cold water supplied through the first cold water port 343a can be guided to the side via the guide rib 437. Figure 21 (Left side of the middle). At this time, a portion of the cool water supplied through the first cool water port 343a flows downward along the back of the outer casing 30, while the remaining portion is guided by the auxiliary rib 436 to flow along the distribution flow path 43. In addition, the cool water guided by the auxiliary rib 436 flows through a flow path formed along the front surface of the first distribution rib 431.

[0213] In addition, the hot water supplied through the hot water port 342 can be guided to the side along the back of the first distribution rib 431. Figure 21 (Left side of the middle). The hot and cold water can be mixed at the end of the first distribution rib 431, and a portion of the mixed hot and cold water is guided to the fourth discharge flow path 48 so that it can be supplied to the second receiving part 55.

[0214] The remaining portion of the mixed hot and cold water separates at the end of the second distribution rib 432 and can move laterally in a straight line along the front and back of the second distribution rib 432. At this time, the washing water moving along the front of the second distribution rib 432 flows into the first discharge path 45 through the third distribution rib 433 and the fourth distribution rib 434, and can be supplied to the first receiving portion 54 via the first discharge path 45. The washing water flowing along the first discharge path 45 is dispersed by the first nozzle 451 and collides with the front surface of the blade 62, thereby causing the mixing component 60 to rotate.

[0215] Furthermore, the washing water moving behind the second distribution rib 432 is supplied to the first receiving portion 54 via the third distribution rib 433 and the fifth distribution rib 435, and through the second discharge flow path 46. Water supplied through the second discharge flow path 46 can be supplied to the inner surface of the first receiving portion 54 through the first flushing hole 463. Additionally, water can also be supplied to the mixing component 60 through the first flushing hole 463.

[0216] On the other hand, when passing through the left end of the second distribution rib 432, the hot water and cold water in front of and behind the second distribution rib 432 can mix again, and the mixed water can flow into the second discharge path 46 through the third distribution rib 433 and the fifth distribution rib 435.

[0217] A portion of the washing water flowing behind the second distribution rib 432 flows into the third discharge path 47 via the space between the fifth distribution rib 435 and the back surface of the outer casing 30, and can be supplied to the first receiving portion 54 through the third discharge path 47. Additionally, the washing water flowing along the third discharge path 47 is dispersed by the second nozzle 471 and can wash the back surface of the blade 62.

[0218] The operation of the washing water supplied from the flow path component 40 to each receiving section 53 will now be described in further detail with reference to the accompanying drawings.

[0219] Figure 23 This is a schematic diagram showing the state of spraying washing water into the mixing component through the nozzle of the flow path component. Figure 24 This is a schematic diagram showing the state in which washing water falls into the first receiving part through the first flushing hole of the aforementioned flow path component.

[0220] Reference Figure 23 as well as Figure 24 Water flowing along the first discharge path 45 flows along the downwardly sloping bottom boundary surface of the first discharge path 45 and is sprayed onto the front surface of the blade 62 through the first nozzle 451 formed at the lower end of the front surface of the first discharge path 45.

[0221] The bottom of the first discharge path 45 can extend obliquely in a direction intersecting with one side of the blade 62, i.e., the front surface. Therefore, the water sprayed from the first nozzle 451 can impact the front surface of the blade, causing the mixing component 60 to rotate. The angle α formed by the washing water sprayed from the first nozzle 451 and the front surface of the blade 62, i.e., the spray angle of the washing water sprayed from the first nozzle 451, is 90 degrees, thereby maximizing the rotational force of the mixing component 60.

[0222] Furthermore, compared to the rotation axis 61 which is close to the mixing component 60, the rotational torque of the mixing component 60 increases when the first nozzle 451 approaches the edge of the blade 62. Therefore, the formation position of the first discharge path 45 can be appropriately selected according to the design conditions.

[0223] Furthermore, during the spraying of water from the first nozzle 451, the mixing component 60 can continuously rotate. At this time, the first receiving portion 54 is filled with powdered detergent. When the mixing component 60 rotates, the powdered detergent and water mix, causing the powdered detergent to dissolve in the washing water. The mixing component 60 can pulverize unevenly distributed powdered detergent or lumpy powdered detergent in the first receiving portion 54, dissolve it in water, and discharge it to the rear of the drawer 50.

[0224] In addition, the dissolved detergent discharged to the rear of the drawer 50 can be discharged into the cylinder 11 through the outer casing outlet 321 on the lower surface 32 of the outer casing and the front end of the lower surface 32 of the outer casing.

[0225] In addition, such as Figure 22 as well as Figure 24 As shown, the washing water flowing along the second discharge path 46 flows to the extension section 462 after passing through the main body 461. In addition, the washing water falling into the first receiving section 54 through the first flushing hole 463 of the second discharge path 46 can wash the interior of the first receiving section 54 and the mixing component 60.

[0226] Specifically, a portion of the washing water from the main body 461 can be supplied to the mixing component 60 after falling downwards through the multiple main flushing holes 464. The mixing component 60 can be washed by the water falling from the main flushing holes 464.

[0227] A portion of the aforementioned main flushing holes 464 may be located directly above the aforementioned rotating shaft 61. Therefore, water falling from the aforementioned main flushing holes 464 can wash away detergent adhering to the surface of the aforementioned rotating shaft 61. Additionally, another portion of the plurality of aforementioned main flushing holes 464 may be located directly above the aforementioned blade 62. Therefore, water falling from the aforementioned main flushing holes 464 can wash away detergent adhering to the aforementioned blade 62.

[0228] Washing water flowing into the extension portion 462 after passing through the main body portion 461 fills the extension portion 462 and falls downward through the plurality of extension rinsing holes 465, thereby washing the first receiving portion 54. Specifically, the extension rinsing holes 465 may be located directly above the curved front surface of the first receiving portion 54. In particular, the extension rinsing holes 465 may be arranged along the front end of the first receiving portion 54.

[0229] Therefore, the washing water falling from the extended rinsing hole 465 can fall onto the upper end of the front surface portion of the first receiving portion 54 or onto the front surface forming the first receiving portion 54. Furthermore, the washing water falling from the extended rinsing hole 465 flows along the front surface of the first receiving portion 54 and flows rearward along the inclined bottom surface of the first receiving portion 54. Therefore, detergent adhering to the inner surface of the first receiving portion 54 can be washed away by the washing water falling from the extended rinsing hole 465.

[0230] Additionally, the water used to wash the first receiving section 54 can be discharged along with the detergent to the rear of the drawer 50. Furthermore, the water and detergent discharged to the rear of the drawer 50 can be discharged into the cylinder 11 through the outer casing outlet 321 on the lower surface 32 of the outer casing and the front end of the lower surface 32 of the outer casing.

[0231] Figure 25 This is a schematic diagram showing the state in which washing water falls into the second receiving section through the second flushing hole formed in the flow path component.

[0232] Reference Figure 22 as well as Figure 25 Water flowing into the fourth discharge path 48 flows forward along the fourth discharge path 48 and can be supplied to the second receiving part 55 through the second flushing hole 481 formed in the fourth discharge path 48.

[0233] As an example, the second receiving section 55 can contain liquid detergent, which, after being diluted in the washing water supplied from the second rinsing hole 481, can be discharged to the bottom of the outer casing 30 through the siphon protrusion 551.

[0234] Specifically, a portion of the washing water flowing along the fourth discharge path 48 falls downward through the first front hole 482. At this time, the water then falls through the first front cover hole 571 of the receiving cover 57 to the front of the second receiving section 55. Additionally, it can mix with liquid detergent inside the second receiving section 55.

[0235] Additionally, another portion of the washing water flowing along the fourth discharge path 48 falls downward through the first rear hole 483. At this time, the washing water falling through the first rear hole 483 flows through the first rear cover hole 572 of the receiving cover 57 and then falls behind the second receiving section 55.

[0236] The first rear hole 483, the first rear cover hole 572, and a portion of the siphon recess 553 can overlap vertically. Therefore, water falling from the first rear hole 483 can pass through the first rear cover hole 572 and directly fall into the siphon recess 553. This dissolves or pulverizes the high-viscosity liquid detergent or solid liquid detergent accumulated in the siphon recess 553, facilitating drainage based on the siphon effect.

[0237] Liquid detergent mixed with water supplied to the second receiving section 55 flows from the siphon tube recess 553 between the siphon tube extension 573 and the siphon tube protrusion 551, into the upper opening of the siphon tube protrusion 551, and can then be discharged downwards into the drawer 50. Additionally, the liquid detergent mixed with water discharged downwards into the drawer 50 can be discharged into the cylinder 11 via the outer casing outlet 321 on the lower surface 32 of the outer casing and the front end of the lower surface 32 of the outer casing.

[0238] Figure 26 This is a schematic diagram showing the state of washing water falling into the third receiving section through the third flushing hole of the flow path component.

[0239] Reference Figure 22 as well as Figure 26 Water flowing into the fifth discharge flow path 49 flows forward along the fifth discharge flow path 49 and can be supplied to the third receiving part 56 through the third flushing hole 491 formed in the fifth discharge flow path 49.

[0240] As an example, the third receiving section 56 can contain fabric softener, which can be diluted in the washing water supplied from the third rinsing hole 491 and discharged downward through the siphon tube boss 561.

[0241] Specifically, a portion of the washing water flowing along the fifth discharge path 49 falls downwards from the second front hole 492. At this time, the washing water falling from the second front hole 492 falls through the second front cover hole 575 of the receiving cover 57 and into front of the third receiving section 56. Furthermore, the washing water falling into the third receiving section 56 can be mixed with fabric softener.

[0242] Additionally, a portion of the remaining washing water flowing along the fifth discharge path 49 falls downwards through the second rear hole 493. At this time, the washing water falling from the second rear hole 493 falls through the second rear cover hole 576 of the receiving cover 57 behind the third receiving section 56.

[0243] The second rear hole 493, the second rear cover hole 576, and a portion of the siphon recess 563 can overlap vertically. Therefore, water falling from the second rear hole 493 can directly fall into the siphon recess 563 through the second rear cover hole 576. This allows for the dissolution or pulverization of high-viscosity liquid or solid liquid detergent accumulated in the siphon recess 563, facilitating siphon-based drainage.

[0244] Fabric softener mixed with water supplied to the third receiving section 56 flows from the siphon tube recess 563 between the siphon tube extension 577 and the siphon tube protrusion 561, into the upper opening of the siphon tube protrusion 561, and can then be discharged downwards into the drawer 50. Additionally, the fabric softener mixed with water discharged downwards into the drawer 50 can be discharged into the cylinder 11 via the outer casing outlet 321 on the lower surface 32 of the outer casing and the front end of the lower surface 32 of the outer casing.

[0245] Figure 27 This is a perspective view of a hybrid component according to an embodiment of the present invention. Figure 28 This is an enlarged perspective view of the rotation axis of the aforementioned hybrid component, viewed from below. Figure 29 It is along Figure 27 The longitudinal section view cut from point 29-29.

[0246] Reference Figures 27 to 29 The mixing component 60 constituting the detergent supply device 20 according to an embodiment of the present invention may be configured in the shape of a fan.

[0247] In detail, as described above, the hybrid component 60 includes a rotating shaft 61, a plurality of blades 62 extending radially from the outer surface of the rotating shaft 61, and a ring 63 connecting the lower end corners of the plurality of blades 62.

[0248] More specifically, the aforementioned hybrid component 60 may further include an auxiliary wing 64 formed at the point where the blade 62 and the ring 63 intersect.

[0249] The diameter of the aforementioned rotating shaft 61 gradually decreases from the bottom end to the top end, and decreases non-linearly, thereby forming a shape in which the outer surface is slowly bent.

[0250] The blade 62 can be configured to tilt in the direction of rotation of the blade 62 as it approaches the upper end from the lower end of the rotation axis. Therefore, the angle formed by the horizontal plane penetrating the ring 63 and the radial end of the blade 62 can be less than 90 degrees.

[0251] With this structure, when the washing water is sprayed in the direction of arrow S and collides with the front surface of the blade 62, the mixing component 60 rotates clockwise as shown in the figure. Furthermore, the auxiliary wing 64 suppresses the splashing of powdered detergent within the space between the rotation shaft 61 and the ring 63 out of the mixing component 60.

[0252] Furthermore, the ring 63 passes through the lower corner of the blade 62 in the radial direction, thereby preventing the lower corner of the blade 62 from being exposed in a sharp and pointed state. As a result, even if the user touches the blade 62, they can avoid being scratched by the blade 62.

[0253] The ring 63 extends upward to a predetermined height from the lower end of the blade 62, and the outer surface of the auxiliary wing 64 and the outer surface of the ring 63 can form a flat surface without any height difference. That is, the rotation trajectory of the auxiliary wing 64 and the ring 63 can be formed into a cylindrical shape with the height of the auxiliary wing 64 and a diameter corresponding to the diameter of the ring 63. In addition, when the mixing component 60 is installed on the rotating boss 541, the bottom surface of the ring 63 can be separated from the bottom of the first receiving portion 54.

[0254] The auxiliary wing 64 can extend upwards and to a predetermined height from the upper surface of the ring 63. As an example, the auxiliary wing 64 can extend to a point corresponding to half the length reaching the upper and lower ends of the blade 62.

[0255] Furthermore, the aforementioned auxiliary wing 64 can extend a predetermined length circumferentially from one of the adjacent plurality of blades 62 toward the other. As an example, the length of the lower end of the aforementioned auxiliary wing 64 can be set to be less than half of the circumferential distance between the lower ends of two adjacent auxiliary wings 62.

[0256] On the other hand, the auxiliary wing 64 includes an upper surface 641 and a side surface 642. The side surface 642 represents the circumferential end of the auxiliary wing 64 and can be inclined in the same direction as the radial end of the blade 62. Furthermore, the corner where the upper and lower surfaces of the auxiliary wing 64 intersect can be slowly bent with a predetermined curvature. The angle θ formed by the side surface 642 and the ring 63 can be set to less than 90 degrees. At least one of the corner where the side surface of the auxiliary wing 64 intersects the upper surface of the ring 63 and the corner where the upper surface of the auxiliary wing 64 intersects the blade 62 can be bent.

[0257] On the other hand, a rotating boss insertion groove 613 is formed inside the rotating shaft 61, and a shaft support portion 611 extends from the upper end of the inner surface of the rotating shaft 61.

[0258] The aforementioned shaft support portion 611 includes a support protrusion 6112 extending a predetermined length downward from the upper end of the aforementioned rotating shaft 61, and a support seat 6111 extending from the outer surface of the aforementioned support protrusion 6112 in the manner of reinforcing ribs.

[0259] Specifically, the lower end of the aforementioned support 6111 is formed into a sharp shape and rests on the upper surface of the aforementioned rotating boss 541. In addition, the aforementioned support 611 includes a plurality of support ribs arranged at predetermined angles along the circumferential direction. For example, three support ribs may be arranged at 120-degree intervals.

[0260] The inner surface of the aforementioned rotating shaft 61 may be recessed to a predetermined depth to form a plurality of gaps 612, and the plurality of gaps 612 may be arranged at predetermined intervals in the circumferential direction. In addition, the gaps 612 extend from the lower end to the upper end of the aforementioned support shaft 61, so that air flowing into the interior of the rotating boss insertion groove 613 can be smoothly discharged to the outside of the aforementioned rotating shaft 61 along the gaps 612.

[0261] Figure 30 This is a longitudinal cross-sectional view showing the state of the hybrid component mounted on the rotating boss.

[0262] Reference Figure 30 As described above, the rotating boss 541 is inserted into the rotating shaft 61 of the hybrid component 60.

[0263] In detail, in order to minimize the friction between the inner surface of the rotating shaft 61 and the rotating boss 541, the rotating boss 541 can be configured as a cylindrical shape with a constant diameter, and the rotating shaft 61 can be configured as a conical shape with a diameter that gradually increases as it approaches the lower end.

[0264] Alternatively, the aforementioned rotating boss 541 may also be formed with a diameter that gradually increases as it approaches the lower end, and designed to be smaller than the inner diameter of the aforementioned rotating shaft 61 passing through the same plane, thereby minimizing the contact area between the aforementioned rotating boss 541 and the aforementioned rotating shaft 61, and minimizing the frictional force generated when the aforementioned hybrid component 60 rotates.

[0265] As an example, the aforementioned rotating shaft 61 may include a first portion 61a whose inner diameter gradually decreases linearly as it approaches the top, and a second portion 61b formed at the upper end of the first portion 61a, with the upper end shaped as a sharp parabola. The shape of the second portion 61b can be described as a bullet shape. Alternatively, it can be interpreted as a conical shape where the inner diameter of the second portion 61b gradually decreases non-linearly as it approaches the top.

[0266] Thus, due to the bending of the outer surface of the second part 61b, the washing water falling towards the upper end of the rotating shaft 61 can flow evenly over the entire surface of the second part 61b. As a result, it has the advantage of thoroughly rinsing away detergent adhering to the surface of the rotating shaft 61. Furthermore, it has the advantage of minimizing resistance from the air generated by the rotating shaft 61 or from the powdered detergent when the mixing component 60 rotates.

[0267] Furthermore, the horizontal plane P passing through the intersection of the first part 61a and the second part 61b can be designed to pass through the upper surface of the rotating boss 541. With this structure, even if the rotating shaft 61 tilts due to the pressure of the washing water, the upper edge of the rotating boss 541 will only contact the first part 61a.

[0268] Furthermore, a recess 5411 is formed on the upper surface of the rotating boss 541, and a support protrusion 6112 of the shaft support portion 611 is placed on the recess 5411. That is, the shaft support portion 611 and the recess 5411 are in point contact, thereby minimizing the frictional force generated between the shaft support portion 611 and the rotating boss 541 when the mixing component 60 rotates.

[0269] Furthermore, the shaft support portion 611 is in point contact with the upper surface of the rotating boss 541, so that even if the mixing component 60 tilts due to the pressure of the washing water acting on the blade 62, it can immediately return to its original state.

[0270] Furthermore, the lower end of the aforementioned rotating shaft 61 is placed in the drainage groove 543 formed on the edge of the aforementioned rotating boss 541, and is designed not to contact the aforementioned drainage groove 543.

[0271] In addition, the lower end of the blade 62 is designed to separate upward from the lower end of the rotating shaft 61, thereby avoiding interference between the lower end of the blade 62 and the bottom of the first receiving portion 54.

Claims

1. A washing machine, comprising: cabinet; A cylinder, which is rotatably disposed inside the aforementioned cabinet; as well as A detergent supply device, located in the aforementioned cabinet, supplies detergent to the aforementioned drum. The aforementioned detergent supply device includes: The outer casing is fixedly installed in the aforementioned cabinet and connected to the water supply device; A drawer is mounted in the aforementioned housing in a manner that allows it to be opened and closed, and includes: a recessed receiving portion for accommodating detergent and a rotating boss extending upward from the bottom of the aforementioned receiving portion. A mixing component, rotatably disposed within the aforementioned housing, mixes detergent within the housing; and A flow path component, which is attached to the outer casing above the drawer, forms a flow path for supplying washing water from the water supply device to the drawer. The aforementioned hybrid component includes: A rotating shaft, into which the aforementioned rotating boss is inserted, its diameter increasing as it approaches the lower end; and Multiple blades extend radially from the outer surface of the aforementioned rotating shaft.

2. The washing machine according to claim 1, characterized in that, The aforementioned hybrid components also include: The shaft support extends from the upper interior of the aforementioned rotating shaft. The aforementioned shaft support portion is placed on the upper surface of the aforementioned rotating boss.

3. The washing machine according to claim 2, wherein, The aforementioned shaft support includes: A support protrusion extending a predetermined length downward from the upper inner end of the aforementioned rotating shaft; and Multiple support seats extend from the outer surface of the aforementioned support protrusions in the form of reinforcing ribs.

4. The washing machine according to claim 3, characterized in that, The lower end of each of the aforementioned plurality of support seats extends to a point that separates upward from the lower end of the aforementioned support protrusion.

5. The washing machine according to claim 3, characterized in that, The ends of the aforementioned support protrusions are formed into a sharp shape. A recess is formed on the upper surface of the aforementioned rotating boss for placing the end of the aforementioned support protrusion.

6. The washing machine according to claim 1, characterized in that, The diameter of the aforementioned rotating boss is constant or increases as it approaches the lower end.

7. The washing machine according to claim 6, characterized in that, The inner diameter of the aforementioned rotating shaft decreases as it approaches the upper end.

8. The washing machine according to claim 7, wherein, The aforementioned rotating shaft includes: The first part, its inner diameter decreases linearly from the bottom end towards the top; and The second part is formed at the upper end of the first part, and its longitudinal cross-section is parabolic.

9. The washing machine according to claim 8, characterized in that, The upper surface of the aforementioned rotating boss forms the same surface as the horizontal plane at the point where the first part and the second part intersect.

10. The washing machine according to claim 6, characterized in that, A drainage groove is formed at the bottom of the receiving portion corresponding to the edge of the aforementioned rotating boss. The lower end of the aforementioned rotating shaft is located in the aforementioned drainage trough and is separate from the bottom of the aforementioned drainage trough.

11. The washing machine according to claim 1, wherein, The aforementioned hybrid components also include: A ring, which connects the lower end of the radial ends of the aforementioned multiple blades.

12. The washing machine according to claim 11, wherein, The aforementioned hybrid components also include: An auxiliary wing connects the radial end of each of the plurality of blades to the upper surface of the ring.

13. The washing machine according to claim 12, characterized in that, The aforementioned auxiliary wing extends a predetermined length along the aforementioned ring at a predetermined height.

14. The washing machine according to claim 13, characterized in that, The side ends of the aforementioned blade and the aforementioned auxiliary wing are formed to tilt in the direction of rotation of the aforementioned blade as they approach the upper end from the lower end.

15. The washing machine according to claim 14, characterized in that, The corner where the upper end of the auxiliary wing intersects with the blade, the corner where the upper end of the auxiliary wing intersects with the side end, or the corner where the side end of the auxiliary wing intersects with the ring is formed by bending at least one of the following:

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