Dispensing apparatus for clothes treatment device, and clothes treatment device

Abstract

A dispensing apparatus for a clothes treatment device, and a clothes treatment device. The dispensing apparatus comprises a first valve (1) and a second valve (2). The first valve (1) is adapted to control the flow rate of water flowing through a first water inlet flow path, and the first water inlet flow path is adapted to dissolve an additive and dispense same into a clothes treatment chamber. The second valve (2) is adapted to control the flow rate of water flowing through a second water inlet flow path, the second water inlet flow path is isolated from the first water inlet flow path, and the flow rate of the second valve (2) is greater than that of the first valve (1).

Description

Dispensing device for laundry treatment apparatus and laundry treatment apparatus

[0001] Cross-reference to Related Applications

[0002] This application claims priority to Chinese Patent Application No. 202421830246.7, filed on July 30, 2024, entitled "Dispensing device for laundry treatment apparatus and laundry treatment apparatus", the entire contents of which are incorporated herein by reference. TECHNICAL FIELD

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

[0004] In the field of washing machine technology, the traditional atomization washing technology sprays the detergent onto the surface of the clothes after atomizing it by high-pressure water flow, in order to enhance the washing effect and reduce water consumption. However, this technology faces a significant technical problem in actual application: due to the huge pressure generated by the water flow in the high-pressure atomization process, the existing washing machine design often needs to set up a special pressure relief port to balance the system pressure, prevent equipment damage (such as causing water box rupture, leakage or performance degradation, etc.), but this compromise in design directly leads to part of the atomized washing liquid under the action of high pressure backflows to the space between the detergent box and the inner and outer barrels through the pressure relief port, rather than directly acting on the clothes. This phenomenon not only weakens the penetration and stripping ability of the atomized bubbles on the clothes stains, greatly reduces the advantages of the atomization washing technology, but also causes waste of detergent, reduces the utilization rate of detergent, and increases the user's washing cost.

[0005] SUMMARY

[0006] The present application aims to at least partially solve one of the technical problems in the related art.

[0007] To this end, one object of the present application is to provide a dispensing device for a laundry treatment apparatus which can cancel the additional setting of a pressure relief port and realize that the washing medium can all directly act on the clothes, so as to improve the effect of detergent atomization bubbles.

[0008] Another object of the present application is to provide a laundry treatment apparatus having the above-mentioned dispensing device for a laundry treatment apparatus.

[0009] A dispensing device for a laundry treatment apparatus, comprising: a first valve adapted to control the water flow rate through a first water inlet flow path adapted to dissolve an additive and to be dispensed into a laundry treatment chamber; and a second valve adapted to control the water flow rate through a second water inlet flow path which is isolated from the first water inlet flow path and has a flow rate greater than that of the first valve.

[0010] According to the dispensing device for a laundry treatment apparatus provided by the embodiments of the present application, by providing the first valve and the second valve to control the water flow rates through the first water inlet flow path and the second water inlet flow path respectively, the water flow rates for dissolving the additive and for washing water can be differentiated, the flow rate of the first valve is relatively small to reduce the fluid pressure of the water path where the additive is dissolved, so as to avoid damage to the dispensing component caused by excessively high fluid pressure, thereby the additional pressure relief port can be cancelled, the washing medium can be prevented from flowing back from the pressure relief port to the space between the dispensing component and the inner and outer drums of the laundry treatment apparatus, the washing medium can be directly applied to the laundry, so as to improve the detergent atomization bubble effect, improve the utilization rate of the detergent, enhance the laundry washing effect and efficiency, and save the washing cost. Meanwhile, the second valve can ensure a proper washing water flow rate to meet the cleaning requirements of the laundry and the laundry treatment apparatus.

[0011] According to some embodiments of the present application, the flow rate of the first valve is less than or equal to 4 L / min.

[0012] According to some embodiments of the present application, the first water inlet flow path is a continuous closed water path having one end in communication with an external water source and the other end in communication with the laundry treatment chamber.

[0013] According to some embodiments of the present application, the dispensing device for a laundry treatment apparatus further comprises a dispensing unit adapted to dispense the additive into the first water inlet flow path.

[0014] According to some embodiments of the present application, the dispensing device for a laundry treatment apparatus further comprises a water box having a first water inlet cavity, a first inlet and a first outlet in communication with the first water inlet cavity, and a dispensing unit adapted to dispense the additive towards the first water inlet cavity; a first pipe having one end connected to the first inlet and the other end provided with the first valve; and a second pipe having one end connected to the first outlet and the other end in communication with the laundry treatment chamber; wherein the first pipe, the first water inlet cavity and the second pipe define the first water inlet flow path.

[0015] According to some embodiments of the present application, the dispensing device for a laundry treatment apparatus further comprises a spray head in communication with the second pipe and having an atomizing outlet formed thereon and facing the laundry treatment chamber.

[0016] According to some embodiments of the present application, the water box is formed with a second water inlet cavity which is isolated from the first water inlet cavity, and a second inlet and a second outlet which are in communication with the second water inlet cavity, and the laundry treating device further comprises: a third pipe and a fourth pipe, one end of the third pipe is connected with the second inlet, and the other end of the third pipe is provided with the second valve; one end of the fourth pipe is connected with the second outlet, and the other end of the fourth pipe is in communication with the laundry treating cavity.

[0017] According to some embodiments of the present application, the dispensing unit further comprises: a dispensing box, the dispensing box is accommodated in the water box, and the dispensing box has a dispensing cavity, and the water box is formed with a water outlet which is in communication with the second water inlet cavity and the dispensing cavity.

[0018] According to some embodiments of the present application, the second inlet and the first inlet are arranged on the same side surface of the water box, and the first valve and the second valve are arranged adjacently and fixedly connected.

[0019] A laundry treating device, comprising the dispensing device for the laundry treating device according to any one of the above embodiments.

[0020] Additional aspects and advantages of the present application will be in part apparent and in part pointed out hereinafter. BRIEF DESCRIPTION OF DRAWINGS

[0021] Fig. 1 is a schematic view of a dispensing device for a laundry treating device according to an embodiment of the first aspect of the present application;

[0022] Fig. 2 is a schematic view of a dispensing device for a laundry treating device according to an embodiment of the second aspect of the present application;

[0023] Fig. 3 is a schematic view of a partial structure of a dispensing device for a laundry treating device according to some embodiments of the present application;

[0024] Fig. 4 is a schematic view of a flow limiting device according to some embodiments of the present application;

[0025] Fig. 5 is a schematic view of a flow limiting device according to some embodiments of the present application. DETAILED DESCRIPTION

[0026] Embodiments of the present application are described in detail below with reference to the accompanying drawings, wherein the same or similar components are denoted by the same or similar reference numerals throughout the drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to explain the present application, and should not be understood as limiting the present application.

[0027] A dispensing device 100 for a laundry treatment apparatus according to embodiments of the present application and a laundry treatment apparatus are described below with reference to Figs. 1-5.

[0028] As shown in Figs. 1 and 2, the dispensing device 100 for a laundry treatment apparatus according to embodiments of the first aspect of the present application comprises a first valve 1 and a second valve 2.

[0029] The first valve 1 is adapted to control the water flow rate through the first water inlet flow path which is adapted to dissolve the additive and to be dispensed into the laundry treatment cavity; the second valve 2 is adapted to control the water flow rate through the second water inlet flow path which is isolated from the first water inlet flow path and the flow rate of the second valve 2 is greater than that of the first valve 1.

[0030] The dispensing device 100 for a laundry treatment apparatus can have two water inlet flow paths, i.e. the first water inlet flow path and the second water inlet flow path. The first water inlet flow path is adapted to dissolve the additive and to be dispensed into the laundry treatment cavity for cleaning the laundry, wherein the additive can be liquid detergent and / or solid detergent, the liquid detergent can include detergent, softener, sterilizer, care agent and other commonly used agents, and the solid detergent can include laundry powder, laundry gel and laundry gel bead, etc., and the first valve 1 can control the water flow rate through the first water inlet flow path to achieve accurate control of the flow rate, pressure, etc. of the first water inlet flow path to meet the pressure requirements of the surrounding components involved in defining the first water inlet flow path and the washing requirements, etc.; the second water inlet flow path is isolated from the first water inlet flow path, and the second water inlet flow path can be used to dispense washing water, etc. into the laundry treatment cavity, and the second valve 2 can control the water flow rate through the second water inlet flow path to control the dispensing speed and water consumption of the washing water, etc.

[0031] It should be noted that if the water flow pressure of the first water inlet flow path for dissolving the additive is too large, an additional pressure relief port needs to be provided to avoid damage to the components and system caused by high pressure, and in the present application, the flow rate of the second valve 2 is greater than that of the first valve 1, and the flow rate of the first valve 1 is small to sufficiently restrict the flow of the first water inlet flow path to reduce the pressure of the fluid on the surrounding components of the first water inlet flow path, etc. so that damage to the equipment caused by high pressure of the fluid can be avoided, and thus the additional pressure relief port can be cancelled, which can avoid the additive and water flow from the pressure relief port back to the space between the dispensing component and the inner and outer barrels of the laundry treatment apparatus, and can achieve that the washing medium can act directly on the laundry, which can improve the additive atomization bubble effect and improve the utilization rate of the detergent; at the same time, because sufficient water consumption and appropriate flow rate are needed for laundry washing, etc. to ensure the cleaning effect, the flow rate of the second valve 2 is greater than that of the first valve 1, which is helpful for efficient cleaning of the laundry and rapid flushing of the foam and additive residues on the inner wall of the laundry treatment cavity, etc. to improve the utilization rate of the additive, which can effectively improve the cleaning ability of the laundry treatment apparatus for the laundry and maintain the hygiene and appearance of the equipment.

[0032] According to the dispensing device 100 for the laundry treatment apparatus provided by the present application, by arranging the first valve 1 and the second valve 2 to control the water flow through the first water inlet flow path and the second water inlet flow path respectively, the water flow for dissolving the additive and the water flow such as the washing water can be differentiated, the flow of the first valve 1 is relatively small to reduce the fluid pressure of the water flow path where the additive is dissolved, so as to avoid the damage to the dispensing component caused by the excessively high fluid pressure, thereby the additional pressure relief port can be cancelled, the washing medium can be prevented from flowing back to the space between the dispensing component and the inner and outer barrels of the laundry treatment apparatus, the washing medium can be directly applied to the laundry, thereby the detergent atomization bubble effect can be improved, the utilization rate of the detergent can be improved, the laundry washing effect and efficiency can be enhanced, and the washing cost can be saved, meanwhile, the second valve 2 can ensure the appropriate washing water flow to meet the cleaning requirements of the laundry and the laundry treatment apparatus.

[0033] As shown in FIG. 1 and FIG. 2, according to some embodiments of the present application, the flow of the first valve 1 is less than or equal to 4 L / min.

[0034] When the flow of the first valve 1 exceeds 4 L / min, for example, the flow of the first valve 1 is 5 L / min or 6 L / min, etc., the fluid of the first water inlet flow path will generate excessive pressure to the surrounding components, which is easy to cause the components to be broken, leaked or even severely damaged, and the working reliability and cleaning ability of the laundry treatment apparatus are reduced. The flow of the first valve 1 of the present application is set in the range of less than or equal to 4 L / min, so that the pressure of the washing medium is relatively small, and the fluid pressure can be further ensured to be within a safe range, thereby effectively avoiding the risk of damaging the components due to high pressure impact. After the additional pressure relief port is cancelled, the components can work in a safe pressure range, and the integrity of the dispensing component and the like can be effectively protected, thereby prolonging the service life.

[0035] It should be pointed out that the flow of the first valve 1 is set to be less than or equal to 4 L / min, which also considers the adaptability and flexibility of the equipment, so that the dispensing device 100 for the laundry treatment apparatus can be applied to laundry treatment apparatuses of different models and specifications to meet different washing requirements.

[0036] In addition, in some specific embodiments of the present application, the flow of the second valve 2 is set to 8 L / min to further ensure the washing water flow and enhance the water flow impact force, thereby further improving the cleaning efficiency and effect, and at the same time, setting the flow of the second valve 2 to 8 L / min is also beneficial to improve the adaptability of the second valve 2 applied to the conventional flow external water source.

[0037] As shown in FIG. 1-FIG. 3, according to some embodiments of the present application, the first water inlet flow path is a continuous closed water path with one end communicating with the external water source and the other end communicating with the laundry treatment cavity.

[0038] The first water inlet flow path is a continuous and closed water path from the external water source to the laundry treatment cavity, so that the first water inlet flow path has good sealing performance, optimizes the anti-leakage performance of the first water inlet flow path, can avoid leakage of additives and water flow, and can further improve the washing effect and utilization rate of the additives. It can be understood that the part of the first water inlet flow path where the additives are added is also a closed structure. For example, the addition of additives can be achieved by automatically pumping from the addition component to the first water inlet flow path, and the first valve 1 controls the water flow of the first water inlet flow path to be small, so as to reduce the fluid pressure in the continuous closed water path and ensure that the fluid pressure is within the safe pressure range of the components around the first water inlet flow path, thereby protecting the components around the first water inlet flow path from high pressure damage.

[0039] It should be noted that the second water inlet flow path is different from the first water inlet flow path. The second water inlet flow path can not be a closed water path, so that the components will not be damaged due to excessive flow and inability to release pressure in a closed structure. Even if the second water inlet flow path is configured as a closed water path, since the water path for dissolving additives and adding to the laundry treatment cavity is the first water inlet flow path, when the second water inlet flow path has part of the cleaning water flowing between the components and the inner and outer barrels of the laundry treatment equipment due to pressure, it will not have a negative impact on laundry cleaning and the operation of the laundry treatment equipment. Therefore, it is not necessary to focus on the flow limiting strength of the second water inlet flow path.

[0040] As shown in FIGS. 1-3, according to some embodiments of the present application, the adding device 100 for the laundry treatment equipment further comprises: an adding unit, the adding unit being adapted to add additives to the first water inlet flow path.

[0041] The adding unit is used to add additives to the first water inlet flow path. Exemplarily, the adding unit can accurately control the amount of additives to be added according to a preset washing program or user instruction, and accurately add the additives to the first water inlet flow path. At the same time, since the first valve 1 limits the flow of the first water inlet flow path, the water flow can have a suitable pressure to have good ability to dissolve additives without causing high pressure damage to the equipment, so that the washing effect and equipment safety can be considered.

[0042] In addition, in some specific embodiments of the present application, the adding unit should be configured as a structure that is easy to disassemble and clean, so as to maintain its good working state and adding precision during long-term use.

[0043] As shown in FIGS. 1-3, according to some embodiments of the present application, the adding device 100 for the laundry treatment equipment further comprises: a water box 3, a first pipe 4, and a second pipe 5.

[0044] The water box 3 has a first water inlet cavity 3a, and a first inlet 3c and a first outlet in communication with the first water inlet cavity 3a, the dosing unit is adapted to dose the additive towards the first water inlet cavity 3a; one end of the first pipe 4 is connected with the first inlet 3c, and the other end is provided with the first valve 1; one end of the second pipe 5 is connected with the first outlet, and the other end is in communication with the laundry treatment cavity; the first pipe 4, the first water inlet cavity 3a and the second pipe 5 define a first water flow path.

[0045] The first water inlet cavity 3a of the water box 3 can be used for injection, storage and discharge of fluid, the first water inlet cavity 3a is in communication with the first inlet 3c and the first outlet, an external water source can enter the first water inlet cavity 3a from the first inlet 3c, and the additive can be dosed into the first water inlet cavity 3a and dissolved in the water flow, the washing medium formed by the additive and the water flow can flow out of the first outlet after flowing through the first water inlet cavity 3a. Among them, the first inlet 3c is connected with the first pipe 4, the first pipe 4 has a certain length, the end of the first pipe 4 away from the first inlet 3c is provided with the first valve 1, and the first valve 1 is located upstream of the first inlet 3c, so that the first valve 1 can accurately control the water flow rate flowing into the first water inlet cavity 3a from the first pipe 4, so as to limit the fluid pressure of the first water flow path, so as to protect the water box and other components from high pressure damage. The first outlet is connected with the second pipe 5, the second pipe 5 has a certain length, the end of the second pipe 5 away from the first outlet is in communication with the laundry treatment cavity, and the second pipe 5 can accurately guide the washing medium flowing out of the first outlet into the laundry treatment cavity, so as to realize cleaning the laundry.

[0046] As shown in FIGS. 1-5, according to some embodiments of the present application, the dosing device 100 for the laundry treatment apparatus further comprises: a spray head in communication with the second pipe 5 and having an atomizing outlet formed thereon towards the laundry treatment cavity.

[0047] The spray head can be in communication with the second pipe 5, and the washing medium formed by the mixture of the water flow and the additive can flow into the spray head after sequentially flowing through the first water inlet cavity 3a, the first outlet and the second pipe 5, the spray head has an atomizing outlet formed thereon, which can be configured as a micropore or a special spray structure to refine the washing medium into tiny droplets and uniformly spray them out. Therefore, by providing the spray head, the washing medium can be sprayed in the form of atomization into the laundry treatment cavity to clean the laundry. It can be understood that by means of atomization spraying, the contact area of the washing medium with the laundry can be increased, and the additive can be more uniformly distributed on the laundry, so as to improve the washing effect and cleanliness.

[0048] As shown in FIG. 3, according to some embodiments of the present application, the water box 3 is formed with a second water inlet cavity 3b isolated from the first water inlet cavity 3a, and a second inlet 3d and a second outlet in communication with the second water inlet cavity 3b, and the dispensing device 100 for the laundry treatment apparatus further comprises: a third pipe 6 and a fourth pipe 7, one end of the third pipe 6 is connected to the second inlet 3d, and the other end is provided with a second valve 2; one end of the fourth pipe 7 is connected to the second outlet, and the other end is in communication with the laundry treatment cavity.

[0049] The second water inlet cavity 3b is isolated from the first water inlet cavity 3a, which can be understood as that a partition plate is arranged in the water box 3 to separate the second dispensing cavity from the first dispensing cavity 3a, so as to ensure the isolation of the second water flow path and the first water flow path. The second inlet 3d and the second outlet are both in communication with the second water inlet cavity 3b, and an external water source can enter the second water inlet cavity 3b from the second inlet 3d and flow into the laundry treatment cavity through the second outlet for washing clothes or spraying the door glass, etc. The third pipe 6 is connected at the second inlet 3d, the third pipe 6 has a certain length, and the second valve 2 is arranged at the end of the third pipe 6 away from the second inlet 3d, so that the second valve 2 is located upstream of the second inlet 3d, thereby precisely controlling the water flow of the second water flow path to meet the needs of washing and spraying cleaning of the door glass. The fourth pipe 7 is connected at the second outlet, the fourth pipe 7 has a certain length, and the end of the fourth pipe 7 away from the second outlet is in communication with the laundry treatment cavity, so that the fourth pipe 7 can deliver the water flow from the second outlet into the laundry treatment cavity.

[0050] By arranging the second water inlet cavity 3b, the second inlet 3d, the second outlet, and the corresponding pipe and valve configuration, the water box 3 can simultaneously process water flow from different water inlet flow paths to perform different functions (the first water inlet flow path dissolves additives, and the second water inlet flow path dispenses clean water), thereby improving the multifunctionality of the water box 3. By precisely controlling the flow rate of the second valve 2 (e.g., 8 L / min), sufficient water quantity and appropriate flow rate can be provided to meet the needs of cleaning and spraying the door glass, etc., thereby improving the cleaning efficiency and effect.

[0051] As shown in FIGS. 1-3, according to some embodiments of the present application, the dispensing unit further comprises: a dispensing box, the dispensing box is accommodated in the water box 3 and has a dispensing cavity, and the water box 3 is formed with a water outlet in communication with the second water inlet cavity 3b and the dispensing cavity.

[0052] The delivery box can be accommodated inside the water box 3, and the delivery cavity of the delivery box can be used to store and release the additive, ensuring that the additive is delivered into the water flow at the appropriate time, and at the same time, the delivery cavity is in communication with the second water inlet cavity 3b through the water outlet of the water box 3, so that the water flow can enter the delivery cavity from the second water inlet cavity 3b and mix with the additive to achieve accurate adjustment of the flow and concentration of the mixed liquid. The number of water outlets can be one or more, and the water outlets can be arranged at the bottom or side of the second water inlet cavity 3b, so that the water flow can smoothly flow into the delivery cavity, and the size and shape of the water outlet can be designed according to actual needs to ensure that the mixed liquid can be uniformly and fully mixed with the additive. For example, the second water inlet cavity 3b can be formed with a plurality of sequentially communicating curved flow channels at the end away from the second inlet 3d, and the bottom of each flow channel can be formed with a plurality of water outlets so that the water flow flows into the delivery cavity.

[0053] As shown in FIG. 3, according to some embodiments of the present application, the second inlet 3d and the first inlet 3c are arranged on the same side of the water box 3, and the first valve 1 and the second valve 2 are arranged adjacent to and fixedly connected.

[0054] The water box 3 has a plurality of side surfaces, and the second inlet 3d and the first inlet 3c can be arranged on the same side of the water box 3, which helps to simplify the connection of the pipes such as the first pipe 4 and the third pipe 6, reduce the length and complexity of the pipes, and at the same time, make the overall structure of the water box 3 more compact, which is conducive to installation and layout inside the clothes treatment equipment. The first valve 1 and the second valve 2 are arranged adjacent to and fixedly connected, which improves the integration of the first valve 1 and the second valve 2, helps to reduce the space occupation between the valves, can further improve the space utilization, and also makes the layout between the external water source and the water box 3 more convenient.

[0055] In addition, the arrangement of the first inlet 3c and the second inlet 3d on one side of the water box 3 and the fixed connection of the first valve 1 and the second valve 2 also help to form a neat and orderly internal structure, making the division of the internal structure clearer and more understandable, and improving the convenience of replacement and maintenance of the components.

[0056] As shown in FIGS. 1 and 4, according to some embodiments of the present application, the delivery device 100 for the clothes treatment equipment further comprises a flow limiting device 8 arranged in the first pipe 4, a flow limiting channel 8a is formed in the flow limiting device 8, the flow limiting channel 8a is in communication with the first water inlet cavity 3a, and the flow limiting device 8 is adapted to limit the flow of fluid in the flow limiting channel 8a.

[0057] The flow limiting device 8 can be arranged on the first pipe 4 upstream of the first inlet 3c, and a flow limiting passage 8a is formed in the flow limiting device 8 and communicates with the first water inlet cavity 3a of the water box 3. By limiting the flow of fluid (water flow) in the flow limiting passage 8a, i.e. the volume of fluid passing through the flow limiting passage 8a per unit time, the flow velocity of the fluid on the inlet side of the flow limiting passage 8a can be increased, and the dynamic pressure of the fluid on the inlet side is increased accordingly. At the same time, due to the increase of the dynamic pressure, the pressure energy (mainly in the form of static pressure) of the fluid is reduced accordingly to maintain the conservation of total energy (dynamic pressure + static pressure + potential pressure, which can be ignored in horizontal pipeline). Therefore, due to the increase of the flow velocity, the static pressure of the fluid near the outlet of the flow limiting passage 8a is reduced, so that the flow limiting device 8 can further limit the flow and reduce the pressure, thereby further reducing the pressure of the fluid entering the first water inlet cavity 3a from the first inlet 3c, and avoiding damage to the equipment due to high pressure of the fluid. Therefore, the additional pressure relief port can be cancelled, and the backflow of the washing medium from the pressure relief port to the space between the dispensing part and the inner and outer barrels of the laundry treatment equipment can be avoided.

[0058] It should be noted that the first pipe 4 is provided with the flow limiting device 8 only as an example of the present application. As shown in FIG. 1, the flow limiting device 8 is additionally arranged on the first pipe 4, which can further enhance the flow limiting and pressure reducing effect and further ensure that the fluid is within the safe pressure range of the equipment. However, in other embodiments of the present application, as shown in FIG. 2, the flow limiting device 8 can also not be arranged on the first pipe 4, and only the first valve 1 is controlled to limit the flow and reduce the pressure of the washing medium, which can also completely meet the safe pressure requirement of the part and fully protect the equipment from high pressure damage, thereby achieving the purpose of cancelling the additional pressure relief port.

[0059] As shown in FIG. 5, according to some embodiments of the present application, the flow limiting device 8 includes a flow limiting plate 81 arranged in the flow limiting passage 8a and adapted to block at least part of the fluid, and a plurality of flow limiting holes 81a are formed in the flow limiting plate 81.

[0060] A flow limiting plate 81 can be arranged in the flow limiting channel 8a. The flow limiting plate 81 can span the entire cross section of the flow limiting channel 8a, or can be designed to cover part of the cross section of the flow limiting channel 8a as needed. The flow limiting plate 81 can block at least part of the fluid in the flow limiting channel 8a. It should be noted that the blocking here is not to completely prevent the fluid from flowing, but to block at least part of the fluid from directly passing through the flow limiting channel 8a. At least part of the fluid needs to bypass the blocking part on the flow limiting plate 81 to pass through the flow limiting channel 8a from the flow limiting hole 81a on the flow limiting plate 81. In this way, the fluid flow can be limited, and the fluid flow rate can be changed. Specifically, when the fluid passes through the flow limiting plate 81, the flow rate of the fluid will increase on the inlet side of the flow limiting channel 8a due to the reduction of the flow area, so that the dynamic pressure of the fluid on the inlet side increases, and the static pressure of the fluid near the outlet of the flow limiting channel 8a decreases, thereby reducing the fluid pressure on the outlet side of the flow limiting channel 8a.

[0061] In addition, in some embodiments of the present application, the flow limiting hole 81a can be configured as a regular-shaped hole such as a circular hole, a rectangular hole or an elliptical hole, so as to facilitate production and improve the uniformity of the flow distribution. In some other embodiments of the present application, the flow limiting hole 81a can also be configured as a special-shaped hole to provide more complex flow control characteristics or to meet specific process requirements.

[0062] As shown in FIGS. 1-5, the laundry treating apparatus according to the second aspect of the present application comprises the dispensing device 100 for a laundry treating apparatus according to any one of the above embodiments, and the technical effects are the same as those of the above embodiments, which will not be repeated here.

[0063] In summary, the dispensing device 100 for a laundry treating apparatus comprises a first valve 1, a second valve 2, a water box 3, a dispensing box, a first pipe 4, a second pipe 5, a third pipe 6 and a fourth pipe 7. The first pipe 4, the first water inlet cavity 3a of the water box 3 and the second pipe 5 define a first water inlet flow path to realize dissolution of the additive and dispensing into the laundry treating cavity. The first water inlet flow path is a continuous closed water path with one end communicating with an external water source and the other end communicating with the laundry treating cavity. The first valve 1 can control the water flow through the first water inlet flow path to limit the fluid flow in the first water inlet cavity 3a and reduce the fluid pressure, thereby avoiding damage to the dispensing box and the water box 3 caused by excessive pressure, eliminating the need for an additional pressure relief port, avoiding backflow of the washing medium from the pressure relief port to the space between the dispensing box and the inner and outer drums of the laundry treating apparatus, and enabling the washing medium to act directly on the laundry, thereby improving the detergent atomization bubble effect and increasing the utilization rate of the detergent.

[0064] In the description of the application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship shown in the drawings based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the application.

[0065] In the description of the application, "first feature" and "second feature" can include one or more of the features.

[0066] In the description of the application, "a plurality of" means two or more.

[0067] In the description of the application, the first feature "above" or "below" the second feature can include the first and second features in direct contact, or the first and second features not in direct contact but in contact through another feature between them.

[0068] In the description of the application, the first feature "above", "above" and "above" the second feature includes the first feature directly above and obliquely above the second feature, or only indicates that the first feature is higher than the second feature in height.

[0069] In the description of the application, the description of the terms "one embodiment", "some embodiments", "illustrative embodiment", "example", "specific example", or "some examples" and the like 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 application. In the description of the application, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0070] Although embodiments of the application have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirit of the application, and the scope of the application is defined by the claims and their equivalents.

Claims

1.A dispensing device for a laundry treating apparatus, wherein, The dispensing device for the laundry treatment apparatus comprises: a first valve adapted to control the flow rate of water flowing through a first water inlet channel, wherein the first water inlet channel is adapted to dissolve an additive and to introduce the additive into a laundry treatment cavity; a second valve adapted to control the flow rate of water flowing through a second water inlet channel, wherein the second water inlet channel is disposed separately from the first water inlet channel, and the flow rate of the second valve is greater than the flow rate of the first valve. 2.The dosing device for a laundry treating apparatus according to claim 1, wherein, The flow rate of the first valve is less than or equal to 4 L / min. 3.The dosing device for a laundry treating apparatus according to claim 2, wherein, The first water inlet channel is a continuous closed water channel having one end in communication with an external water source and the other end in communication with the laundry treatment cavity. 4.The dosing device for a laundry treating apparatus according to claim 2, wherein, The dispensing device for the laundry treatment apparatus further comprises: 5.The dosing device for a laundry treating apparatus according to any one of claims 1-4, wherein, a dispensing unit adapted to dispense an additive into the first water inlet channel. The dispensing device for the laundry treatment apparatus further comprises: a water box having a first water inlet cavity, a first inlet and a first outlet in communication with the first water inlet cavity, the dispensing unit being adapted to dispense an additive towards the first water inlet cavity; a first pipe having one end connected to the first inlet and the other end provided with the first valve; a second pipe having one end connected to the first outlet and the other end in communication with the laundry treatment cavity; wherein 6.The dosing device for a laundry treating apparatus according to claim 5, wherein, the first pipe, the first water inlet cavity and the second pipe define the first water inlet channel. 7.The dosing device for a laundry treating apparatus according to claim 5, wherein, The dispensing device for the laundry treatment apparatus further comprises: a spray head in communication with the second pipe and having an atomizing outlet formed thereon and directed towards the laundry treatment cavity. The water box further has a second water inlet cavity disposed separately from the first water inlet cavity, a second inlet and a second outlet in communication with the second water inlet cavity, and the dispensing device for the laundry treatment apparatus further comprises: 8.The dosing device for a laundry treating apparatus according to claim 7, wherein, a third pipe having one end connected to the second inlet and the other end provided with the second valve; a fourth pipe having one end connected to the second outlet and the other end in communication with the laundry treatment cavity. 9.The dosing device for a laundry treating apparatus according to claim 7, wherein, The dispensing unit further comprises: 10.A laundry treating apparatus, wherein, a dispensing box accommodated in the water box and having a dispensing cavity, the water box being formed with a water outlet in communication with the second water inlet cavity and the dispensing cavity. The second inlet and the first inlet are disposed on the same side surface of the water box, and the first valve and the second valve are disposed adjacently and fixedly connected. The dispensing device for the laundry treatment apparatus comprises: any one of claims 1-9.

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