Detergent dispensing device and laundry treatment apparatus

Abstract

A detergent dispensing device (100), comprising a detergent supply assembly, a liquid output line (20), a first line (40A), and a second line (50A). The detergent supply assembly is provided with a detergent passage and a first water discharge port, and the detergent passage is in communication with the external space of the detergent dispensing device (100). The liquid output line (20) has a water inlet end and a water outlet end. The first line (40A) is in communication with a water source, the detergent passage, the first water discharge port, and the water inlet end of the liquid output line (20). The second line (50A) is in communication with the water source and the water inlet end of the liquid output line (20). The fluid in the first line (40A) and the fluid in the second line (50A) are converged in the liquid output line (20), and the fluid in the first line (40A) is a mixed detergent solution. In the detergent dispensing device (100), a detergent, especially a powdered detergent, is fully dissolved and then dispensed into a laundry treatment cavity, which improves the degree of dissolution of the detergent and improves the cleaning effect, thereby improving the user experience. Further provided is a laundry treatment apparatus.

Description

A detergent dispensing device and a laundry treating apparatus

[0001] Cross Reference to Related Applications

[0002] The present application is based on Chinese Patent Application No. 202410745839.1, filed on June 7, 2024, and Chinese Patent Application No. 202421311362.8, filed on June 7, 2024, and claims priority to both of the above Chinese Patent Applications, the contents of which are incorporated herein by reference in their entirety. TECHNICAL FIELD

[0003] The present application relates to the technical field of laundry treatment, and in particular to a detergent dispensing device and a laundry treating apparatus. BACKGROUND

[0004] In related art, a laundry treating apparatus mainly includes a laundry treating drum, a detergent box, and a pipeline, the pipeline connecting the detergent box and the laundry treating drum. When washing laundry, an external fluid is introduced into the detergent box to form a detergent solution, which is finally introduced into the laundry treating drum through the pipeline to add detergent. However, the detergent, especially laundry powder, is often not fully dissolved and mixed with the fluid, resulting in that the detergent is not fully utilized, the washing effect is poor, and the user experience is affected. SUMMARY

[0005] Therefore, the embodiments of the present application aim to provide a detergent dispensing device and a laundry treating apparatus, which fully dissolve the detergent, especially powder detergent, before being introduced into the laundry treating cavity, so as to improve the dissolution degree of the detergent and the washing effect, and improve the user experience.

[0006] The first aspect of the embodiments of the present application provides a detergent dispensing device, comprising:

[0007] a detergent supply assembly having a detergent passage and a first water outlet, the detergent passage being in communication with an external space of the detergent dispensing device;

[0008] a liquid outlet waterway having a water inlet end and a water outlet end;

[0009] a first waterway and a second waterway for conveying fluid, the first waterway being in communication with a water source, the detergent passage, the first water outlet, and the water inlet end of the liquid outlet waterway; and the second waterway being in communication with the water source and the water inlet end of the liquid outlet waterway;

[0010] the fluid in the first waterway and the fluid in the second waterway converge in the liquid outlet waterway, and the fluid in the first waterway is a detergent mixed solution.

[0011] In some embodiments, the outlet pressure of the second waterway is greater than the outlet pressure of the first waterway.

[0012] In some embodiments, the first drain is higher than the inlet end of the liquid outlet waterway in the direction of gravity, so that the detergent mixed solution in the first waterway converges with the fluid in the second waterway in the liquid outlet waterway under the action of gravity.

[0013] In some embodiments, the outlet end of the second waterway is provided with a reduced diameter section, so that the flow rate of the outlet end of the second waterway is increased.

[0014] In some embodiments, the end of the reduced diameter section forms the outlet end of the second waterway; or, the end of the reduced diameter section is further connected with a constant diameter section and / or an expanded diameter section, and the constant diameter section and / or the expanded diameter section form the outlet end of the second waterway.

[0015] In some embodiments, the constant diameter section and the expanded diameter section are both less than or equal to the extension length of the reduced diameter section along the second waterway.

[0016] In some embodiments, the detergent feeding device further comprises a turbulent structure arranged in the second waterway, for providing a circumferential velocity component to the fluid in the second waterway.

[0017] In some embodiments, the turbulent structure comprises one or more spiral vanes for guiding the spiral movement of the fluid.

[0018] In some embodiments, the outer edge of the spiral vane in the spiral direction is connected with the inner wall of the second waterway, and the inner edge of the spiral vane in the spiral direction is arranged spaced apart from the inner wall of the second waterway.

[0019] In some embodiments, the reduced diameter section is located downstream of the turbulent structure.

[0020] In some embodiments, the detergent feeding assembly further has an overflow cavity for containing the detergent mixed solution overflowing from the detergent passage, and a second drain for draining the detergent mixed solution in the overflow cavity.

[0021] In some embodiments, the detergent supply assembly comprises a detergent box and a dispenser box arranged in the detergent box, the dispenser box having a detergent feeding cavity, the detergent box having a mixing cavity and the overflow cavity, the mixing cavity and the overflow cavity being arranged below the dispenser box, the mixing cavity being used for receiving the mixed solution of the detergent flowing through the detergent feeding cavity, the first drain port being arranged on the cavity wall of the mixing cavity, and the overflow cavity being used for receiving the mixed solution of the detergent overflowing from the mixing cavity.

[0022] In some embodiments, the detergent feeding device comprises a first pipeline and a second pipeline, one end of the first pipeline being connected to a water source, the other end of the first pipeline being connected to the detergent supply assembly, and one end of the second pipeline being connected to the first drain port, the other end of the second pipeline being connected to the liquid outlet pipeline.

[0023] In some embodiments, the detergent feeding device comprises a third pipeline, one end of the third pipeline being connected to a water source, the other end of the third pipeline being connected to the liquid outlet pipeline, and the space in the third pipeline independently defining the second pipeline or defining a part of the second pipeline.

[0024] The laundry treatment device according to any one of the embodiments of the present application comprises:

[0025] a laundry treatment cavity;

[0026] the detergent feeding device according to any one of the embodiments of the present application;

[0027] the water outlet end of the liquid outlet pipeline being connected to the laundry treatment cavity.

[0028] In some embodiments, the laundry treatment device comprises a door seal ring, the door seal ring having a mounting opening, the water outlet end of the liquid outlet pipeline penetrating through the mounting opening and extending to the radial inner side of the door seal ring.

[0029] The detergent feeding device according to the embodiments of the present application, the first pipeline flowing through the detergent passage which is connected to the external space of the detergent feeding device, so that the fluid in the first pipeline is depressurized, and the second pipeline does not flow through the first drain port, thereby causing a pressure difference between the end of the first pipeline and the end of the second pipeline, and further causing a flow rate difference, the flow rate difference enabling the detergent carried by the first pipeline to be further impacted, diluted, dissolved and mixed by the fluid of the second pipeline with a higher flow rate in the liquid outlet pipeline, so that the dissolution of the detergent can be further promoted before the detergent enters the laundry treatment cavity, the uniformity of the mixing of the detergent and water is improved, and thus the utilization efficiency of the detergent and the cleaning ratio are improved. BRIEF DESCRIPTION OF DRAWINGS

[0030] FIG. 1 is a partial structural schematic view of a laundry treatment device according to an embodiment of the present application;

[0031] Fig. 2 is a schematic view of a detergent dispensing device and a water inlet valve according to an embodiment of the present application;

[0032] Fig. 3 is a schematic view of the structure shown in Fig. 2 from another perspective;

[0033] Fig. 4 is a partially enlarged sectional view of the structure shown in Fig. 2 at A;

[0034] Fig. 5 is a schematic view of a necked-down section according to an embodiment of the present application;

[0035] Fig. 6 is a schematic view of a first water path, a second water path and a liquid outlet water path according to a first embodiment of the present application;

[0036] Fig. 7 is a schematic view of a first water path, a second water path and a liquid outlet water path according to a second embodiment of the present application;

[0037] Fig. 8 is a schematic view of a first water path, a second water path and a liquid outlet water path according to a third embodiment of the present application. DETAILED DESCRIPTION

[0038] In order to make the objects, technical solutions and advantages of the present application clearer, the present application will be further described in detail below with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and not intended to limit the present application.

[0039] In the specific embodiments, each specific technical feature described can be combined in any suitable manner without contradiction, for example, different embodiments and technical solutions can be formed by combining different specific technical features. In order to avoid unnecessary repetition, various possible combinations of each specific technical feature in the present application are not described again.

[0040] In the following description, the terms "first\second\..." are only used to distinguish different objects and do not mean that the objects have the same or related aspects. It should be understood that the terms "upper", "lower", "outer", "inner" refer to the positions in the normal use state, and the terms "left" and "right" refer to the left and right directions shown in the specific schematic view, which can be the left and right directions in the normal use state or not.

[0041] It should be noted that the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus. An element proceeded by "comprises... a" does not, without more constraints, exclude the presence of additional identical elements in the process, method, article, or apparatus that comprises the element. "Multiple" means two or more.

[0042] The embodiment of the present application provides a detergent dispensing device 100. Referring to FIGS. 2, 6-8, the detergent dispensing device 100 comprises a detergent supply assembly, a liquid outlet waterway 20, a first waterway 40A, and a second waterway 50A. The detergent supply assembly has a detergent passage and a first water outlet. The first waterway 40A and the second waterway 50A are used to transport fluid.

[0043] The embodiment of the present application also provides a laundry treating apparatus. The type of the laundry treating apparatus is not limited, for example, the laundry treating apparatus can be a washing machine, a washer-dryer, or the like.

[0044] Referring to FIGS. 1 and 2, the laundry treating apparatus comprises a laundry treating cavity and the detergent dispensing device 100 in any embodiment of the present application. The liquid outlet end of the liquid outlet waterway 20 of the detergent dispensing device 100 is communicated with the laundry treating cavity.

[0045] It can be understood that the detergent passage refers to the flow path of the detergent mixed solution in the detergent supply assembly.

[0046] It should be noted that the detergent mixed solution mentioned in the present specification is merely for the convenience of description, which refers to a solution in which the detergent is dissolved, and the mass percentage concentration is not limited. Of course, the detergent mixed solution is not limited to the complete dissolution of the detergent. In some embodiments, the detergent mixed solution can be the detergent stock solution added by the user. In other embodiments, after the user adds the detergent to the detergent dispensing device, the detergent is mixed with the fluid from the water source.

[0047] The first waterway 40A is communicated with the water source, the detergent passage, the first water outlet, and the water inlet end of the liquid outlet waterway 20. That is, the fluid of the first waterway 40A flows through the detergent passage and the first water outlet, that is, the detergent passage and the first water outlet constitute part of the first waterway 40A.

[0048] The second waterway 50A is communicated with the water source and the water inlet end of the liquid outlet waterway 20.

[0049] The fluid in the first waterway 40A and the fluid in the second waterway 50A converge in the liquid outlet waterway 20. The fluid in the first waterway 40A is a detergent mixed solution. The fluid in the second waterway 50A is not limited, and can be clean water, a detergent mixed solution, or a solution added with other care components.

[0050] That is, the fluid from the water source in the first waterway 40A flows through the position where the detergent is placed, mixes with the detergent, forms a detergent mixed solution, flows to the first drain port, is drained through the first drain port, and flows to the liquid outlet waterway 20. Please refer to Figs. 2 to 8, all the arrows in the drawings of the present application show the direction of liquid flow.

[0051] Exemplarily, the detergent passage includes a detergent placing cavity, which can be adapted to contain powder detergent, and the fluid in the first waterway 40A flows through the detergent placing cavity to preliminarily dissolve the powder detergent. Of course, the detergent placing cavity can also be adapted to contain detergent with flow characteristics, such as laundry liquid, softener, perfume, etc.

[0052] In this embodiment, the detergent passage communicates with the external space of the detergent placing device, that is, the detergent passage communicates with the atmosphere to form a pressure relief space. The water pressure of the fluid in the first waterway 40A at any cross section of the end of the first waterway 40A connected to the water source is the initial water pressure, and when the fluid in the first waterway 40A flows through the detergent passage, the fluid in the first waterway 40A is caused to drop in water pressure, that is, to be pressure relieved, because the fluid enters the pressure relief space from the closed pipe section. The fluid after being pressure relieved flows from the first drain port to the water inlet end of the liquid outlet waterway 20, so that the water pressure of the fluid flowing through the first waterway 40A at any cross section of the water inlet end of the liquid outlet waterway is less than the initial water pressure at any cross section of the end of the first waterway 40A connected to the water source. That is, the fluid from the water source enters the first waterway 40A with relatively large pressure, and is pressure relieved in the detergent passage, so that the water pressure at the end of the first waterway 40A is less than the water pressure at the water inlet end.

[0053] It should be noted that the specific type of the fluid in the second waterway 50A is not limited, for example, it can be water or a washing medium mixed solution, which can be the same as or different from the detergent mixed solution in the first waterway 40A. In some preferred embodiments, the fluid in the second waterway 50A is water, and the following embodiments are described by taking the fluid in the second waterway 50A as water as an example.

[0054] It should be noted that in the embodiments of the present application, the first waterway 40A refers to the flow path of the fluid, and does not specifically refer to a pipe structure. The second waterway 50A refers to the flow path of the fluid, and does not specifically refer to a pipe structure.

[0055] It should be noted that the water source refers to a water source for supplying fluid to the first waterway 40A and the second waterway 50A, which can be a water source such as tap water or an internal water source such as circulating water of the laundry treatment apparatus. The first waterway 40A and the second waterway 50A can be connected to the same water source or different water sources. For example, referring to FIG. 2, the laundry treatment apparatus includes a water inlet valve 90 connected to the water source, and the first waterway 40A and the second waterway 50A can be connected to different water inlet valves 90 or the same water inlet valve 90, which is not limited herein. As an optional embodiment, the laundry treatment apparatus includes a circulating pump (not shown), one of the first waterway 40A and the second waterway 50A is connected to the water inlet valve 90, and the other of the first waterway 40A and the second waterway 50A is connected to the water outlet of the circulating pump (not shown) of the laundry treatment apparatus.

[0056] It can be understood that after flowing through the detergent passage and the first drain, the first waterway 40A carries the detergent mixed solution to continue to flow into the liquid outlet waterway 20, and the second waterway 50A enters the liquid outlet waterway 20. The first waterway 40A and the second waterway 50A converge in the liquid outlet waterway 20, so that the two streams of water are mixed. After mixing, they are discharged from the water outlet end of the liquid outlet waterway 20 and enter the laundry treatment cavity. That is, the liquid outlet waterway 20 is used to guide the mixed liquid of the first waterway 40A and the second waterway 50A into the laundry treatment cavity.

[0057] The detergent feeding device of the embodiment of the present application is used to further promote the dissolution of the detergent and improve the mixing uniformity of the detergent and water before the detergent enters the laundry treatment cavity, thereby improving the utilization efficiency of the detergent and improving the cleaning ratio.

[0058] In some embodiments, the second waterway 50A can be connected to the water inlet valve 90 to mix with the water of the first waterway 40A at a water pressure not lower than that when flowing from the water inlet valve 90, thereby further improving the mixing effect.

[0059] It should be noted that for the embodiment in which the detergent is washing powder, part of the washing powder in the first waterway 40A can not be completely dissolved, and when the first waterway 40A and the second waterway 50A impact and mix, the impact fluid helps to promote the dissolution of the washing powder.

[0060] It should be noted that the water inlet end of the liquid outlet waterway 20 refers to the position where the fluid in the first waterway 40A exits the first waterway 40A and enters the liquid outlet waterway 20, and the position where the fluid in the second waterway 50A exits the second waterway 50A and enters the liquid outlet waterway 20. The water outlet end of the liquid outlet waterway 20 refers to the position where the fluid in the liquid outlet waterway 20 exits the liquid outlet waterway 20.

[0061] For example, in some embodiments, referring to FIG. 6, the liquid outlet waterway 20 includes a mixing space 20a, the wall surface of the mixing space 20a is provided with two ports 20b, the fluid in the first waterway 40A enters the mixing space 20a from one of the two ports 20b, and the fluid in the second waterway 50A enters the mixing space 20a from the other port 20b. Both of the two ports 20b can be considered as the water outlet end of the first waterway 40A and the second waterway 50A, and also as the water inlet end of the liquid outlet waterway 20, and the outlet end of the liquid outlet waterway 20 is arranged on the wall surface of the mixing space 20a.

[0062] For example, in some embodiments, referring to FIG. 6, the liquid outlet waterway 20 includes a mixing space 20a, the wall surface of the mixing space 20a is provided with two ports 20b, the fluid in the first waterway 40A enters the mixing space 20a from one of the two ports 20b, and the fluid in the second waterway 50A enters the mixing space 20a from the other port 20b. Both of the two ports 20b can be considered as the water outlet end of the first waterway 40A and the second waterway 50A, and also as the water inlet end of the liquid outlet waterway 20, and the outlet end of the liquid outlet waterway 20 is arranged on the wall surface of the mixing space 20a.

[0063] In some other embodiments, referring to FIG. 8, the laundry treating apparatus includes a first tubular structure 1001 and a second tubular structure 1002. At least a portion of the second tubular structure 1002 extends into the interior of the first tubular structure 1001. The liquid outlet waterway 20 includes a mixing space 20a, which is formed by a portion of the first tubular structure 1001, i.e., the mixing space 20a of the liquid outlet waterway is formed by the first tubular structure 1001 itself. The portion of the first tubular structure 1001 upstream of the mixing space 20a defines a portion of the first waterway 40A. A portion of the second waterway 50A is formed by the second tubular structure 1002. The water outlet end of the second tubular structure 1002 is located in the interior space of the mixing space 20a formed by the first tubular structure 1001, and the fluid in the second waterway 50A flows out of the water outlet end of the second tubular structure 1002 and mixes with the fluid in the first waterway 40A in the mixing space 20a formed by the first tubular structure 1001. The water outlet cross section 1003 adjacent to the upstream of the mixing space 20a formed by the first tubular structure 1001 can be considered as the water outlet end of the first waterway 40A, and also as one of the water inlet ends of the liquid outlet waterway 20, and the water outlet end of the second tubular structure 1002 can be considered as the other water inlet end of the liquid outlet waterway 20, and the water outlet end of the liquid outlet waterway is provided on the first tubular structure 1001.

[0064] Exemplarily, the outlet pressure of the second waterway 50A is greater than the outlet pressure of the first waterway 40A. Here, the outlet pressure of the first waterway 40A refers to the dynamic pressure on the cross section of the outlet end of the first waterway 40A. The outlet pressure of the second waterway 50A refers to the dynamic pressure on the cross section of the outlet end of the second waterway 50A. Dynamic pressure is a fluid mechanics term, which refers to the pressure increase on the surface directly opposite to the direction of fluid movement when the object moves in the fluid, at which the fluid speed is 0, the kinetic energy is converted into pressure energy, and the pressure is increased. The pressure is called full blocked pressure (simply called full pressure or total pressure), which is the difference between the pressure at the un-disturbed place (i.e., static pressure) and the dynamic pressure.

[0065] In this embodiment, since the outlet pressure of the second waterway 50A is greater than the outlet pressure of the first waterway 40A, the impact force of the fluid out of the water outlet end of the second waterway 50A is greater than the impact force of the fluid out of the water outlet end of the first waterway 40A, so that the impact force of the fluid out of the first waterway 40A can be improved, which is more conducive to dispersing the detergent and improving the solubility of the detergent.

[0066] Exemplarily, the detergent supply assembly has an overflow cavity and a second drain 30a (see FIG. 3).

[0067] The overflow cavity is used to receive the detergent mixed solution overflowing from the detergent passage, and the second drain port 30a is used to drain the detergent mixed solution in the overflow cavity. Exemplarily, the second drain port 30a is arranged on the cavity wall of the overflow cavity, and the liquid in the overflow cavity can be directly drained from the second drain port 30a.

[0068] When the water level in the detergent passage is not higher than the overflow water level, the water in the detergent passage is drained from the first drain port and flows to the liquid outlet waterway 20. When the water level in the detergent passage is higher than the overflow water level, the excess water overflows into the overflow cavity and is drained from the second drain port 30a to the outside of the detergent supply assembly, thereby reducing the fluid congestion in the detergent passage and playing a safety protection role. If the washing powder put into the detergent supply assembly may be damp and clumped, and it is difficult to completely dissolve in a short time, the flow rate of the first drain port is small, and the overflow cavity and the second drain port 30a can also timely drain the overflow water in the detergent passage.

[0069] In some embodiments, the flow area of the second drain port 30a is greater than the flow area of the first drain port, that is, under the condition that the water volume is sufficient, the drainage volume of the second drain port 30a is greater than the drainage volume of the first drain port. The above-mentioned flow area refers to the cross-sectional area of the fluid.

[0070] Since the flow area of the first drain port is small, the outflow volume of the first drain port is relatively small. The second drain port 30a and the overflow cavity can timely drain the detergent mixed solution or fluid of the first waterway 40A under the overflow condition, further enhancing the safety protection role.

[0071] In some embodiments, as shown in FIG. 1, the laundry treating apparatus includes a drum assembly, the drum assembly includes an outer tub 11 and an inner tub arranged in the outer tub, the inner tub is rotatably arranged in the outer tub 11, the outer tub 11 is used to hold water for laundry washing, and the inner tub is used to hold laundry. In this embodiment, the inner tub holds water through the outer tub 11, and the inner tub can also be referred to as a perforated inner tub. In other embodiments, the inner tub holds water by itself, and can also be referred to as a non-perforated inner tub. The outer part of the inner tub can be provided with the outer tub 11, or can not be provided with the outer tub 11.

[0072] It can be understood that in some embodiments, the drum assembly 10 can only have the inner tub without the above-mentioned outer tub 11. In this embodiment, the inner tub is a non-perforated inner tub, and the inner tub can hold water by itself.

[0073] The outer tub 11 is provided with a water inlet, and the second drain port 30a communicates with the water inlet. For example, the laundry treating apparatus further includes a water outlet pipeline 70 connecting the second drain port 30a and the water inlet. When the water level of the detergent passage is higher than the overflow water level, the excess water overflows into the overflow cavity and enters the water outlet pipeline 70 from the second drain port 30a, and auxiliary water inlet can also be achieved.

[0074] For example, referring to FIG. 2, the detergent supply assembly includes a detergent box 30 and a dispenser box (not shown) disposed in the detergent box 30, the dispenser box having a detergent dispensing cavity. In some embodiments, the dispenser box is pullably disposed in the detergent box 30, for example, the dispenser box is pulled out at least partially from the detergent box 30 to the outside of the detergent box 30 in a horizontal direction. A user can pour detergent into the detergent dispensing cavity.

[0075] The detergent box 30 has a mixing cavity and an overflow cavity, the mixing cavity and the overflow cavity being located below the dispenser box, the mixing cavity being used to receive a detergent mixed solution flowing through the detergent dispensing cavity, a first drain being disposed on a cavity wall of the mixing cavity, and the overflow cavity being used to receive the detergent mixed solution overflowing from the mixing cavity. It should be noted that the detergent in the detergent dispensing cavity can flow to the first drain under the action of fluid.

[0076] It can be understood that the detergent dispensing cavity and the mixing cavity at least constitute part of a detergent passage, and the fluid in the first waterway 40A flows through the detergent dispensing cavity and the mixing cavity, and the detergent passage belongs to part of the first waterway 40A. No additional pipeline is needed for the drainage of the detergent dispensing cavity, so that the structure of the detergent supply assembly is relatively compact.

[0077] Referring to FIG. 3, the first drain is higher than the water inlet end of the liquid outlet waterway 20 in the gravity direction G, so that the detergent mixed solution in the first waterway 40A is mixed with the fluid in the second waterway 50A in the liquid outlet waterway 20 under the action of gravity.

[0078] Due to the height difference between the first drain and the water inlet end of the liquid outlet waterway 20, the fluid passing through the first drain flows under the action of gravity and is mixed with the fluid in the second waterway 50A at a certain speed. In this way, the gravitational potential energy can be used to mix with the fluid in the second waterway 50A, without the need for additional electric devices such as water pumps, so that power-free mixing can be achieved, cost can be saved, the structure can be simplified, and the working stability can be enhanced.

[0079] It should be noted that the liquid outlet waterway 20 can be disposed directly below the first drain, or can be disposed obliquely below the first drain, as long as the water inlet end of the liquid outlet waterway 20 has a height difference with the first drain in the gravity direction G.

[0080] In some embodiments, referring to FIG. 3, any position of the detergent supply assembly is higher than the water inlet end of the liquid outlet waterway 20 in the gravity direction G. The detergent mixed solution in the detergent supply assembly has a higher gravitational potential energy than the liquid outlet waterway 20, and when it is discharged through the first drain, the acceleration effect of gravity is more obvious.

[0081] In some embodiments, any position of the first waterway 40A is not lower than the water inlet end of the liquid outlet waterway 20 in the gravity direction G. That is, the junction of the liquid outlet waterway 20 and the first waterway 40A is located at the lowest point of the first waterway 40A, so that the energy loss of the detergent mixed solution in the first waterway 40A is less when it converges at the liquid outlet waterway 20.

[0082] In some embodiments, any position of the second waterway 50A is not lower than the water inlet end of the liquid outlet waterway 20 in the gravity direction G. The junction of the liquid outlet waterway 20 and the second waterway 50A is located at the lowest point of the second waterway 50A, so that the energy loss of the fluid in the second waterway 50A is less when it converges at the liquid outlet waterway 20.

[0083] Exemplarily, the flow rate at the end of the first waterway 40A is less than that at the end of the second waterway 50A. Wherein, the end of the first waterway 40A refers to the position where the fluid in the first waterway 40A exits the first waterway 40A, and can also be understood as the junction of the first waterway 40A and the liquid outlet waterway 20. The end of the second waterway 50A refers to the position where the fluid in the second waterway 50A exits the second waterway 50A, and can also be understood as the junction of the second waterway 50A and the liquid outlet waterway 20.

[0084] The slower flow rate of the fluid from the first waterway 40A in the liquid outlet waterway 20, and the faster flow rate of the fluid from the second waterway 50A, can further promote the dissolution of the detergent.

[0085] In some embodiments, referring to FIG. 4, the detergent dispenser 100 further comprises a turbulence structure 21 arranged in the second waterway 50A, for providing a circumferential velocity component to the fluid in the second waterway 50A.

[0086] The above-mentioned circumferential velocity component refers to the component of the velocity direction of the fluid in the second waterway 50A after passing through the turbulence structure 21 in the circumferential direction of the second waterway 50A, which is perpendicular to the extension direction of the second waterway 50A.

[0087] After the fluid passes through the turbulence structure 21, the state of the fluid changes, and has a tendency to spread in the circumferential direction, forming multiple streams of fluid flowing in different directions, so that it enters the liquid outlet waterway 20 and mixes with the fluid in the liquid outlet waterway 20 better, improving the mixing efficiency. It can also make the fluid sprayed from the water outlet end of the liquid outlet waterway 20 spread in a roughly conical shape, with a wider radiation range and a better visual effect.

[0088] It can be understood that the turbulence structure 21 can also increase the flow rate of the fluid by limiting the flow area of the region of the second waterway 50A where it is located. In this way, the speed difference between the two streams of fluid entering the liquid outlet waterway 20 is greater, further promoting the dissolution of the detergent.

[0089] Exemplarily, the turbulence structure 21 comprises one or more helical blades for guiding the fluid to move helically. The helical blade refers to a blade having a shape of a helix, and the blade extends in a helical direction. After passing through the helical blade, the fluid presents a helical motion with a circumferential velocity component. The helical blade structure is simple, has a good turbulence effect on the fluid, and has a small resistance, thereby reducing the energy loss of the fluid when passing through.

[0090] In some embodiments, the helical blade is arranged in the second water channel 50A, and an outer edge of the helical blade in the helical direction is connected to an inner wall of the second water channel 50A, and an inner edge of the helical blade in the helical direction is arranged in a spaced manner with the inner wall of the second water channel 50A, that is, there is a gap between the inner edge of the helical blade and the inner wall of the second water channel 50A, so that the inner wall of the second water channel 50A provides a connection support for the helical blade.

[0091] In some embodiments, the second water channel 50A is provided with a reduced-diameter section 22, and exemplarily, in some embodiments, an end of the reduced-diameter section 22 forms the water outlet end of the second water channel 50A. That is, the fluid of the second water channel 50A is sprayed out from the end of the reduced-diameter section 22. In other embodiments, the end of the reduced-diameter section 22 is further connected to a constant-diameter section and / or an enlarged-diameter section, and the constant-diameter section and / or the enlarged-diameter section form the water outlet end of the second water channel 50A.

[0092] It should be noted that, in the direction of the motion of the fluid, the flow area of the fluid in the above-mentioned reduced-diameter section decreases, the flow area of the fluid in the above-mentioned constant-diameter section is basically unchanged, and the flow area of the fluid in the above-mentioned enlarged-diameter section increases.

[0093] The reduced-diameter section 22 can increase the impact force of the fluid by limiting the flow area when the fluid is sprayed out, so as to generate a greater impact force on the fluid at the water outlet end of the first water channel 40A, thereby achieving a better mixing effect.

[0094] At the same time, the reduced-diameter section 22 makes the water outlet end of the second water channel 50A have a greater jet speed, so as to generate a significant negative pressure in a relatively large surrounding area, so that the fluid at the water outlet end of the first water channel 40A is sucked under the action of the negative pressure and mixed with the fluid of the second water channel 50A, thereby improving the mixing and foaming effect.

[0095] In some embodiments, the length of the constant-diameter section and the enlarged-diameter section along the extension length of the second water channel 50A is less than or equal to the length of the reduced-diameter section 22 along the extension length of the second water channel 50A. Since the longer the flow path of the fluid is, the more obvious the energy loss of the fluid is, limiting the length of the constant-diameter section and / or the enlarged-diameter section can reduce the loss of the circumferential velocity component and the impact force of the fluid after flowing out of the reduced-diameter section 22.

[0096] As an optional embodiment, in the embodiment provided with the turbulent structure 21 and the reduced-diameter section 22, the reduced-diameter section 22 is located downstream of the turbulent structure 21. The fluid sequentially passes through the turbulent structure 21 and the reduced-diameter section 22, and is sprayed out of the washing machine treatment cavity in a conical shape.

[0097] In this embodiment, the fluid in the first waterway 40A is a laundry detergent mixed solution or a laundry powder mixed solution, especially a laundry powder mixed solution. Since the laundry powder is a powdery detergent, it is more likely to block and remain than the laundry detergent, which may reduce the reliability of the first waterway 40A. If the turbulent structure 21 and the reduced-diameter section 22 are arranged in the first waterway 40A, the above problems are more likely to occur. The fluid in the second waterway 50A is water, that is, the second waterway 50A is used to transport water from the water source. The turbulent structure 21 and the reduced-diameter section 22 are arranged in the second waterway 50A. The water flows through the second waterway 50A and is discharged at a high speed from the water outlet end. The laundry powder mixed solution at the water outlet end of the first waterway 40A is impacted, fully mixed, and a large amount of foam is generated. Finally, the fluid is sprayed out of the water outlet end of the liquid outlet waterway 20 in a substantially conical shape and with a large amount of foam.

[0098] In some embodiments, referring to FIG. 2, the detergent feeding device 100 includes a first pipe 41 and a second pipe 42. One end of the first pipe 41 is connected to a water source, for example, a water inlet valve 90. The other end of the first pipe 41 is connected to a detergent supply assembly, for example, a detergent box 30, for guiding the fluid into the detergent supply assembly. In some specific embodiments, the other end of the first pipe 41 is connected to the detergent box 30, for guiding the fluid into the detergent box 30.

[0099] One end of the second pipe 42 is connected to the first drain port, and the other end of the second pipe 42 is connected to the liquid outlet waterway 20, for guiding the fluid discharged from the first drain port to the liquid outlet waterway 20. In this embodiment, the space in the first pipe 41, the space in the second pipe 42, and part of the space in the detergent box 30 together constitute at least part of the first waterway 40A.

[0100] In some embodiments, referring to FIG. 2, the detergent feeding device 100 includes a third pipe 50. One end of the third pipe 50 is connected to a water source, and the other end of the third pipe 50 is connected to the liquid outlet waterway 20, for guiding the water from the water source to the liquid outlet waterway 20. In this embodiment, the space in the third pipe 50 can independently define the second waterway 50A, or the space in the third pipe 50 defines part of the second waterway 50A.

[0101] It should be noted that the first pipe 41 described above can be a complete pipe body or can be connected by multiple pipe bodies, which is not limited here.

[0102] The second pipe 42 described above can be a complete pipe body or can be connected by multiple pipe bodies, which is not limited here.

[0103] The third pipeline 50 can be a complete pipe body or can be connected by multiple pipe bodies, which is not limited herein.

[0104] Exemplarily, as shown in FIG. 2, the third pipeline 50 can be integrally arranged outside the detergent box 30; or a part of the third pipeline 50 is integrated on the shell of the detergent box 30, that is, a part of the shell of the detergent box 30 constitutes a part of the third pipeline 50; or the third pipeline 50 is a pipeline structure penetrating through the detergent box 30.

[0105] Exemplarily, referring to FIG. 1, the laundry treating apparatus further comprises a door (not shown), a cabinet (not shown), and a door seal ring 60 arranged at the front side of the drum assembly 10. The drum assembly 10 is arranged in the cabinet. The cabinet is provided with an opening in communication with the inside of the drum assembly 10, and the door is used to open or close the opening. The door seal ring 60 is used to seal the gap between the drum assembly 10 and the opening of the cabinet. When the door closes the opening, the door sealingly abuts on the door seal ring 60, so that the communication space formed by the door, the door seal ring 60 and the inside of the drum assembly 10 constitutes a laundry treating cavity.

[0106] The door seal ring 60 has a mounting hole, and the water outlet end of the liquid outlet waterway 20 penetrates through the mounting hole of the door seal ring 60 and extends to the radial inside of the door seal ring 60, so as to facilitate the water outlet end of the liquid outlet waterway 20 to directly pour the mixed liquid of the first waterway 40A and the second waterway 50A into the laundry treating cavity.

[0107] The above-mentioned direct pouring into the laundry treating cavity means that the mixed liquid of the first waterway 40A and the second waterway 50A discharged by the liquid outlet waterway 20 does not need to be guided by other structures, but is directly poured into the laundry treating cavity under the action of the gravity and pressure of the fluid itself. In this way, the mixed liquid sprayed to wet the laundry can improve the washing effect.

[0108] In some embodiments, the water outlet end of the liquid outlet waterway 20 is inclined to the lower rear of the laundry treating cavity to facilitate the sprayed water to cover a large range of laundry in the laundry treating cavity.

[0109] In some embodiments, referring to FIG. 2, the laundry treating apparatus comprises a water inlet valve 90, and the water inlet valve 90 has a first outlet 90a, and the first waterway 40A and the second waterway 50A are both in communication with the first outlet 90a. A water source supplies water to the laundry treating apparatus through the water inlet valve 90, and the first waterway 40A and the second waterway 50A are both connected to the first outlet 90a of the water inlet valve 90, so as to facilitate the installation of the first waterway 40A and the second waterway 50A, simplify the setting of the water inlet valve 90, and save costs.

[0110] As shown in Fig. 2, the water inlet valve 90 also has a second outlet 90b, which can be used to supply water to other pipelines.

[0111] In the description of the present application, the description of the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the embodiments of the present application. In the present application, the illustrative description of the above terms is not necessarily directed to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any appropriate manner in any one or more embodiments or examples. In addition, different embodiments or examples described in the present application and the features of different embodiments or examples can be combined by those skilled in the art without contradiction.

[0112] The above only describes the preferred embodiments of the present application and is not intended to limit the present application. Those skilled in the art can make various modifications and changes to the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A detergent dispensing device, wherein, The application relates to a detergent supply assembly and a detergent dispenser. The detergent supply assembly comprises a detergent supply assembly, a liquid outlet waterway, a first waterway and a second waterway. The first waterway is connected with a water source, the detergent supply path, the first water outlet and the water inlet end of the liquid outlet waterway. The second waterway is connected with the water source and the water inlet end of the liquid outlet waterway. The fluid in the first waterway and the fluid in the second waterway converge in the liquid outlet waterway, and the fluid in the first waterway is a detergent mixed solution.

2. The detergent dispensing device according to claim 1, wherein The outlet pressure of the second waterway is greater than the outlet pressure of the first waterway.

3. The detergent dispensing device according to any one of claims 1-2, wherein, The first water outlet is higher than the water inlet end of the liquid outlet waterway in the direction of gravity, so that the detergent mixed solution in the first waterway converges with the fluid in the second waterway in the liquid outlet waterway under the action of gravity.

4. The detergent dispensing device according to any one of claims 1 to 3, wherein, The water outlet end of the second waterway is provided with a reduced diameter section, so that the flow rate of the water outlet end of the second waterway is increased.

5. The detergent dispensing device according to claim 4, wherein The end of the reduced diameter section forms the water outlet end of the second waterway, or the end of the reduced diameter section is further connected with an equal diameter section and / or an expanded diameter section, and the equal diameter section and / or the expanded diameter section form the water outlet end of the second waterway.

6. The detergent dispensing device according to claim 5, wherein The equal diameter section and the expanded diameter section are both less than or equal to the extension length of the reduced diameter section along the second waterway.

7. A detergent dispensing device according to any one of claims 4-6, wherein, The detergent dispenser further comprises a turbulence structure arranged in the second waterway and used for providing a circumferential velocity component to the fluid in the second waterway.

8. The detergent dispensing device according to claim 7, wherein The turbulence structure comprises one or more spiral blades used for guiding the spiral movement of the fluid.

9. The detergent dispensing device according to claim 8, wherein The outer edge of the spiral blade in the spiral direction is connected with the inner wall of the second waterway, and the inner edge of the spiral blade in the spiral direction is arranged in a spaced mode with the inner wall of the second waterway.

10. A detergent dispensing device according to any one of claims 7-9, wherein, The reduced diameter section is located downstream of the turbulence structure.

11. A detergent dispensing device according to any one of claims 1-10, wherein, The detergent supply assembly further comprises an overflow cavity used for containing the detergent mixed solution overflowing from the detergent supply path and a second water outlet used for discharging the detergent mixed solution in the overflow cavity.

12. The detergent dispensing device according to claim 11, wherein, The detergent supply assembly comprises a detergent box and a distributor box arranged in the detergent box, the distributor box is provided with a detergent feeding cavity, the detergent box is provided with a mixing cavity and the overflow cavity, the mixing cavity and the overflow cavity are located below the distributor box, the mixing cavity is used for containing the detergent mixed solution flowing through the detergent feeding cavity, the first water outlet is arranged on the cavity wall of the mixing cavity, and the overflow cavity is used for containing the detergent mixed solution overflowing from the mixing cavity.

13. A detergent dispensing device according to any one of claims 1-12, wherein, The detergent dispenser comprises a first pipeline and a second pipeline, one end of the first pipeline is introduced into a water source, and the other end of the first pipeline is connected with the detergent supply assembly. One end of the second pipeline is connected with the first water outlet, and the other end of the second pipeline is connected with the liquid outlet waterway.

14. A detergent dispensing device according to any one of claims 1-13, wherein, The detergent dispensing device comprises a third pipeline, one end of which is introduced into a water source and the other end of which is communicated with the liquid outlet water channel; the space in the third pipeline independently defines the second water channel, or the space in the third pipeline defines a part of the second water channel. 15.A laundry treating apparatus, wherein, Comprising: a laundry treatment cavity; and the detergent dispensing device of any one of claims 1-14; the water outlet end of the liquid outlet water channel is communicated with the laundry treatment cavity. 16.The laundry treating apparatus according to claim 15, wherein, The laundry treatment device comprises a door seal ring, the door seal ring has a mounting port, the water outlet end of the liquid outlet water channel passes through the mounting port and extends to the radial inner side of the door seal ring.

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