A detergent dispenser, a washing machine and a water intake control method thereof

Abstract

The application provides a detergent feeding device, a washing machine and a water inlet control method thereof. The detergent feeding device can be arranged in a water inlet channel of the washing machine, and the detergent feeding device comprises a dissolving unit, the dissolving unit comprises a dissolving cavity, the dissolving cavity is provided with a water inlet and a water outlet, wherein: a friction medium is arranged in the dissolving cavity; the dissolving cavity is provided with a blocking assembly which can allow water and detergent to pass through and keep the friction medium in the dissolving cavity; under the driving of water flow: the friction medium can contact with water and detergent in the dissolving cavity, and the dissolving cavity can introduce water and detergent into the washing machine. The application can mix the detergent and water in the dissolving cavity, and the kinetic energy of the water flow can make the friction medium collide with water, detergent, the inner wall of the dissolving cavity, so as to accelerate the dissolution speed of the detergent in water. Further, the detergent can play a good cleaning role in the initial stage of cleaning of the washing machine, thereby improving the cleaning efficiency and effect of the washing machine.

Description

Technical Field

[0001] This invention belongs to the technical field of washing machines and their control methods, specifically relating to a detergent dispensing device, a washing machine, and a water inlet control method. Background Technology

[0002] Washing machines are widely used in daily life due to their excellent features such as small footprint, multi-functionality, and ease of use.

[0003] Washing machines require detergent (such as laundry liquid, laundry powder, laundry pods, etc.) to clean clothes. Currently, this is usually done manually by placing the detergent directly into the washing machine drum, turning on the machine, and starting to fill with water. The washing machine begins washing clothes once the water has filled. However, since clothes are generally dry, the detergent only begins to mix and dissolve in the water after it has filled. This insufficient mixing during the initial washing stage can lead to low washing efficiency and affect the overall cleaning effect. This is especially true when there are few clothes to wash, as the washing machine requires less water and the water filling time is shorter. This reduced mixing time further decreases the detergent's solubility in the water, potentially reducing the washing machine's cleaning efficiency and effectiveness.

[0004] As an improvement, a detergent dispenser is installed in the water inlet pipe of the washing machine. Users can add detergent (such as laundry liquid or powder) to the dispenser before washing clothes. During the water inlet phase, the detergent enters the washing machine drum with the water flow. However, because the detergent is only carried into the drum by the water flow, it only dissolves and foams in small amounts before entering the drum. This results in insufficient dissolution of the detergent in the initial stage of washing, meaning the detergent cannot take effect promptly, thus affecting the washing machine's cleaning efficiency and effectiveness. In summary, existing washing machines suffer from insufficient detergent dissolution before entering the machine. Summary of the Invention

[0005] In view of this, the present invention provides a detergent dispensing device, a washing machine and a water inlet control method thereof, which can solve the problem that the detergent in existing washing machines does not dissolve well before entering the washing machine.

[0006] To address the above problems, the present invention mainly provides the following technical solutions:

[0007] On one hand, the present invention provides a detergent dispensing device that can be configured in the water inlet channel of a washing machine. The detergent dispensing device includes a dissolving unit, which includes a dissolving chamber with an inlet and an outlet.

[0008] A friction medium is provided inside the dissolution chamber;

[0009] The dissolving chamber is equipped with a blocking component that allows water and detergent to pass through while keeping the friction medium always within the dissolving chamber.

[0010] Driven by the water flow, the friction medium can come into contact with water and detergent in the dissolving chamber, which in turn introduces water and detergent into the washing machine.

[0011] In some embodiments, the friction medium includes a friction element placed within the melting chamber.

[0012] In some implementations, there are multiple friction elements.

[0013] In some embodiments, the blocking component includes a second baffle screen disposed at the outlet of the dissolving chamber.

[0014] In some embodiments, the blocking assembly further includes a first baffle, which is disposed at the inlet of the dissolving chamber.

[0015] In some embodiments, the first baffle is detachably disposed in the dissolving chamber, and / or the second baffle is detachably disposed in the dissolving chamber.

[0016] In some implementations, the density of the friction medium is no greater than the density of water.

[0017] In some implementations, when the direction of water flow into the dissolution chamber is opposite to the direction of gravity, the density of the friction medium is greater than the density of water.

[0018] In some embodiments, the detergent dispensing device further includes an anti-backflow unit connected to the inlet of the dissolving chamber, which is capable of preventing at least a portion of the liquid in the dissolving chamber from flowing back.

[0019] In some embodiments, the anti-backflow unit includes a connecting pipe having a connecting pipe inlet and a connecting pipe outlet, the connecting pipe outlet being connected to the inlet of the dissolving chamber.

[0020] On the other hand, the present invention also provides a washing machine, which includes the detergent dispensing device described above.

[0021] On the other hand, the present invention also provides a water inlet control method for a washing machine, the washing machine including the detergent dispensing device described above, the water inlet control method specifically including the following steps:

[0022] Step 1) The washing machine controls the main water inlet to turn on, and the water flow carries the detergent into the water inlet channel;

[0023] Step 2) Set the washing machine to shut off the main water inlet at the preset time;

[0024] Step 3) After the preset time is reached, the washing machine will control the main water inlet to start again. When the washing machine detects that the water level in the washing machine has reached the threshold required by the clothes, the washing machine will control the main water inlet to stop again, and the water inlet of the washing machine will end.

[0025] Compared with the prior art, the detergent dispensing device, washing machine and water inlet control method provided by the present invention have at least the following beneficial effects:

[0026] In the technical solution provided by this invention, a detergent dispensing device can be configured in the water inlet channel of a washing machine. The detergent dispensing device includes a dissolving unit, which includes a dissolving chamber with an inlet and an outlet. A friction medium is provided inside the dissolving chamber. The dissolving chamber is equipped with a blocking component that allows water and detergent to pass through while keeping the friction medium within the dissolving chamber. Under the influence of water flow, the friction medium can contact water and detergent within the dissolving chamber, allowing the dissolving chamber to introduce water and detergent into the washing machine. Based on this, by adding a detergent dispensing device to the water inlet channel of the washing machine, this invention allows detergent and water to mix within the dissolving chamber. The kinetic energy of the water flow causes the friction medium to move, and the frictional collision between the friction medium and the water and detergent improves the solubility of the detergent in the water, allowing the detergent to dissolve fully in a shorter time. Thus, since the detergent entering the washing machine is already relatively fully dissolved in the water, the detergent can effectively clean clothes at the beginning of the washing process, thereby improving the washing efficiency and effectiveness of the washing machine.

[0027] In some embodiments, the friction medium includes a friction element placed within the dissolution chamber. The friction medium of this invention employs a friction element, which, through the impact force and kinetic energy of the water flow, allows the friction element to move with the water flow. The detergent achieves rapid and thorough dissolution through mutual friction and scouring between itself, the friction element, and the water flow.

[0028] In some embodiments, the present invention uses multiple friction elements. Under the impact and kinetic energy of the water flow, the present invention causes friction between the detergent and the friction elements, as well as friction between the friction elements themselves, thereby enhancing the movement within the dissolving chamber and further increasing the dissolving speed and efficiency of the detergent during its movement.

[0029] In some embodiments, the blocking component of the present invention includes a second baffle, which is disposed at the outlet of the dissolving chamber. By placing the second baffle at the outlet of the dissolving chamber, the design of the second baffle ensures that it does not obstruct the flow of water and detergent. Furthermore, the second baffle ensures that the friction medium remains within the dissolving chamber and does not flow out with the water and into the washing machine, thus preventing damage to the washing machine.

[0030] In some embodiments, the blocking component further includes a first baffle, which is disposed at the inlet of the dissolving chamber. By placing the first baffle at the inlet of the dissolving chamber, the present invention ensures that the design of the first baffle does not obstruct the flow of water and detergent. Since the movement of water, detergent, and friction media within the dissolving chamber may cause the friction media to exit through the outlet of the dissolving chamber, the first baffle can prevent the friction media from escaping through the outlet, thus avoiding problems such as blockage of the inlet channel by the friction media.

[0031] In some embodiments, the first baffle of the present invention is detachably disposed in the dissolving chamber, and / or the second baffle is detachably disposed in the dissolving chamber. The present invention, through its flexible design for the assembly and disassembly of the first and second baffles, makes assembly and disassembly more convenient, thereby improving the efficiency of replacing or maintaining the detergent dispensing device.

[0032] In some embodiments, the density of the friction medium of the present invention is no greater than that of water. In this way, because the friction medium is lighter than water, it can float on the water. The water flowing through the dissolving chamber, under the influence of the water's kinetic energy, can rapidly impact and tumble the friction medium, thereby increasing the speed at which water and detergent mix and dissolve.

[0033] In some implementations, when the direction of water flow into the dissolving chamber is opposite to the direction of gravity, the density of the friction medium is greater than the density of water. In this case, after the water flows into the dissolving chamber, the friction medium does not immediately float away from the water inlet, allowing the water to quickly impact and tumble the friction medium under the action of the water kinetic energy, thereby increasing the dissolution rate of the detergent.

[0034] In some embodiments, the detergent dispensing device of the present invention further includes an anti-backflow unit connected to the inlet of the dissolving chamber. The anti-backflow unit is capable of preventing at least a portion of the liquid in the dissolving chamber from flowing back. The anti-backflow unit includes a connecting pipe having a connecting pipe inlet and a connecting pipe outlet, the connecting pipe outlet being connected to the inlet of the dissolving chamber. By configuring the connecting pipe at the inlet of the dissolving chamber, the present invention aims, on the one hand, to prevent the backflow of liquid that may swirl and turn within the dissolving chamber. On the other hand, when detergent is mixed and dissolved in a short time through physical action, it generates a certain amount of foam. By designing the connecting pipe, some of the foam can be prevented from flowing back, thus reducing detergent residue.

[0035] On the other hand, the present invention also provides a washing machine having the detergent dispensing device described above. A washing machine employing the detergent dispensing device of the present invention allows the detergent to be fully mixed with water within the detergent dispensing device during the water intake stage, resulting in a higher degree of detergent dissolution after entering the washing machine. This allows the detergent to quickly take effect during the washing process, thereby improving the efficiency and effectiveness of the washing machine in cleaning clothes.

[0036] On the other hand, the present invention also provides a water inlet control method for a washing machine, the washing machine including the aforementioned detergent dispensing device. The water inlet control method includes: step 1) the washing machine controls the main water inlet to open, and the water flow carries the detergent into the water inlet channel; step 2) the washing machine presets a time to close the main water inlet; step 3) after the preset time is reached, the washing machine controls the main water inlet to open again, and when the washing machine detects that the water level in the washing machine has reached the threshold required by the clothes, the washing machine controls the main water inlet to close again, and the water inlet of the washing machine ends. The present invention controls the timing of water inlet of the washing equipment, especially by designing to control the main water inlet to close after a certain period of time, so that the water and detergent can mix in advance in the water inlet channel during this period of time, which to a certain extent reduces the residue of detergent in the detergent box, the pipe through which the detergent flows and the dissolving chamber, improves the solubility and utilization rate of detergent, and improves the washing effect.

[0037] The above description is merely an overview of the technical solution of the present invention. In order to better understand the technical means of the present invention and to implement it in accordance with the contents of the specification, the preferred embodiments of the present invention are described in detail below with reference to the accompanying drawings. Attached Figure Description

[0038] To more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below. The drawings described below are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0039] Figure 1 This is a schematic diagram of the structure of a detergent dispensing device according to an embodiment of the present invention;

[0040] Figure 2 This is a schematic diagram of the structure of a washing machine with a detergent dispensing device according to an embodiment of the present invention;

[0041] Figure 3 This is a schematic diagram of the detergent dispensing device according to another embodiment of the present invention from another angle;

[0042] Figure 4 This is a flowchart illustrating the water inlet control method of the washing machine according to the present invention.

[0043] Figure label:

[0044] 1. Dissolution chamber;

[0045] 101. Second baffle; 102. Friction particles; 103. Dissolving cylinder; 104. First baffle.

[0046] 2. Outer cylinder; 3. Connecting pipe;

[0047] 301. Connecting pipe outlet; 302. Connecting pipe inlet;

[0048] 4. Detergent dispenser; 401. Detergent dispenser outlet;

[0049] 5. Inner cylinder, 6. Spray inlet, 7. Main water inlet. Detailed Implementation

[0050] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0051] It should be noted that if the embodiments of the present invention involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0052] Furthermore, if the embodiments of this invention involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. If the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0053] Currently, most washing machines dispense detergent by placing it in a detergent dispenser (4), and then allowing the detergent to enter the machine through a water flow that washes over the dispenser. However, this method results in a short mixing time between the detergent and water before the detergent enters the machine, and the mixing is only achieved through flow. Consequently, the detergent and water do not mix sufficiently in the water inlet, affecting the cleaning efficiency and potentially leading to poor washing results.

[0054] To address this, this application proposes a detergent dispensing device that can be configured in the water inlet channel of a washing machine. The detergent dispensing device includes a dissolving unit, which includes a dissolving chamber 1. The dissolving chamber 1 has an inlet and an outlet, wherein:

[0055] A friction medium is provided inside the dissolution chamber 1;

[0056] The dissolving chamber 1 is equipped with a blocking component that allows water and detergent to pass through and keeps the friction medium always within the dissolving chamber 1;

[0057] Driven by the water flow, the friction medium can come into contact with water and detergent in the dissolving chamber 1, and the dissolving chamber 1 can introduce water and detergent into the washing machine.

[0058] like Figure 1 and Figure 2As shown in the figure, in one embodiment, the detergent dispensing device of the present invention can be disposed between the detergent box 4 and the main water inlet 7. The detergent dispensing device contains a friction medium. During the water intake stage of the washing machine, after the water flow carries the detergent into the detergent dispensing device of the present invention, the kinetic energy impact of the water flow causes the friction medium to contact and rub against the water and detergent in the dissolving chamber 1, generating friction between the friction medium and the dissolving chamber 1, and between the friction medium and the water and detergent. This increases the degree of friction between the detergent and water in the dissolving chamber 1, and improves the solubility of the detergent in the water. Therefore, the detergent, which is relatively fully dissolved in the water, can achieve a good cleaning effect as soon as it enters the washing machine during the washing process, thereby improving the washing efficiency and cleaning effect of the washing machine to a certain extent.

[0059] As a preferred embodiment, the friction medium includes a friction element, which is placed inside the melting chamber 1.

[0060] In some embodiments, the friction element of the present invention may include friction particles 102, which are freely placed within the dissolving chamber 1. The present invention uses friction particles 102 as the friction medium of the detergent dispensing device, and the friction particles 102 are movably disposed within the dissolving chamber 1, allowing them to tumble and move within the dissolving chamber 1 under the influence of water flow. This intensifies the friction between the detergent and water, thereby increasing the dissolution rate of the detergent in the water. Of course, in actual operation, the shape and material of the friction particles 102 can be selected and adjusted according to actual needs. For example, the shape of the friction particles 102 can be, but is not limited to, circular, rhomboid, elliptical, etc. The material selection of the friction particles 102 is more flexible; for example, the material of the friction particles 102 can be, but is not limited to, nylon, PP, rubber, etc. The outer shell of the dissolving chamber 1 can be a cylindrical dissolving cylinder 103, or it can be flexibly designed into a spherical, elliptical, or other shapes according to actual needs. Water flowing through the dissolving chamber 1 continuously impacts the friction particles 102 under the action of kinetic energy, causing them to tumble, thus achieving the purpose of rapid mixing and dissolution of water and detergent. The purpose of friction particles 102 is to move with the water flow and make contact and friction with the water and detergent, thereby making the detergent dissolve quickly in the water.

[0061] like Figures 1-3 As shown, based on this, as a preferred embodiment, the number of friction components in this invention is multiple. In some embodiments, multiple friction particles 102 are placed, so that under the impact force and kinetic energy of the water flow, the movement between the detergent, friction particles 102, and water can be more complex and intense. In addition, the frictional movement between the friction particles 102 further enhances the movement of water and detergent, thereby further improving the dissolution rate and efficiency of the detergent in the water during the movement process.

[0062] In practical design, as a preferred option, friction particles 102 with a relatively high surface roughness can be selected, or the surface of the selected friction particles 102 can be processed to improve the roughness. For example, multiple particles, protrusions, or grooves can be formed on the surface of the friction particles 102. Choosing a method to increase the degree of friction allows the friction force generated between the friction particles 102 and the detergent and water during the movement carried by the water flow to make the movement of water and detergent in the dissolving chamber 1 more intense, thereby making the detergent dissolve more completely.

[0063] As a preferred embodiment, the blocking component includes a second baffle 101, which is disposed at the outlet of the dissolving chamber 1.

[0064] This invention incorporates a baffle at the outlet of the dissolving chamber 1, allowing water and detergent to pass smoothly while preventing the friction medium from passing through. By confining the friction medium within the dissolving chamber 1, the auxiliary mixing and dissolving effect and efficiency of the friction medium are enhanced. Furthermore, it effectively prevents the friction medium from being flushed out of the outlet of the dissolving chamber 1 and affecting the smoothness of the water inlet channel, and also prevents the friction medium from being carried into the washing machine by the water flow and causing damage.

[0065] As a preferred embodiment, the blocking component also includes a first baffle 104, which is disposed at the inlet of the dissolving chamber 1. In some embodiments, the first baffle 104 is also installed at the inlet of the dissolving chamber 1. The function of the first baffle 104 is similar to that of the second baffle 101, except that the position is different. The first baffle 104 can block the friction medium from being removed to the outlet of the dissolving chamber 1 or from being thrown out by the water flow, thereby preventing the friction medium from causing a certain degree of blockage to the water inlet channel.

[0066] In actual design, as a specific embodiment, the first baffle 104 and the second baffle 101 can be, but are not limited to, the structure of a filter screen. Of course, the size of the friction particles 102 needs to be larger than the size of the filter screen mesh, so as to ensure that detergent and water pass through the first baffle 104 and the second baffle 101, while the friction particles 102 are locked in the dissolving chamber 1.

[0067] As a preferred embodiment, the first baffle 104 is detachably disposed in the dissolving chamber, and / or the second baffle 101 is detachably disposed in the dissolving chamber 1.

[0068] As one embodiment, the present invention can optionally install the first baffle 104 and / or the second baffle 101 in a detachable manner at the port of the dissolving chamber 1. In actual operation, if the first baffle 104 or the second baffle 101 is chosen to be non-detachable, it can be connected by, but is not limited to, methods such as integral molding or welding. If it is chosen to be detachable, it can be connected by, but is not limited to, clamp connections, threads, etc., and the appropriate method can be selected according to actual needs. Choosing integral molding or welding can obviously improve its strength, but it is inconvenient for cleaning and maintenance. Choosing threaded or clamp connections, although its strength and stability may be relatively reduced, greatly increases the convenience of cleaning or maintenance. Of course, obviously at least one of the baffles should be installed in a detachable manner to facilitate cleaning and maintenance of the interior of the dissolving chamber 1, or replacement of the friction particles 102, etc.

[0069] As a preferred option, the density of the friction medium is no greater than that of water.

[0070] In this invention, when selecting the material of the friction medium, a friction medium with a density not greater than that of water can be selected. Of course, as a more preferred embodiment, the density of the friction medium is close to but less than that of water. In this way, after the water flow and detergent enter the dissolving chamber 1, the buoyancy of the friction particles 102 maintains a tendency to move in the opposite direction to the direction of water flow. Based on this, after the water flow and detergent enter the dissolving chamber 1, the kinetic energy of the water flow and detergent can be used to fully impact the friction particles 102, so that the friction particles 102 can continuously roll in the mixture of water and detergent. Only after mutual impact and friction with the friction particles 102 can they flow out of the dissolving chamber 1, thereby further improving the dissolution efficiency of the detergent.

[0071] Of course, the above effect is achieved when the water flow direction is the same as the gravity direction, that is, when the friction particles 2 are naturally located at the bottom of the dissolving chamber 1. If the water flow direction is opposite to the gravity direction, it can be understood as the dissolving chamber 1 being installed upside down. In this case, the effect of the above design method will obviously be reduced to a certain extent. To address this, in the case where the direction of water flow into the dissolving chamber 1 is opposite to the gravity direction, the present invention chooses to make the density of the friction particles 102 greater than the density of water. Of course, as a more preferred method, the density of the friction particles 102 should not be too high; the density of the friction particles 102 is close to but greater than that of water. When the friction particles are naturally located at the water inlet of the dissolving chamber, after the water and detergent enter, the friction particles 102 continue to move in the opposite direction to the water flow direction, similar to before. Based on this, after the water enters the dissolving chamber 1, the kinetic energy of the water flow can fully impact the friction particles 102, thereby ensuring improved detergent dissolution efficiency.

[0072] The present invention can flexibly adjust the density of the friction particles 102 according to the direction of water flow, thereby enhancing the frictional impact of the friction particles 102 and ensuring the dissolution effect of the detergent in the detergent dispensing device of the present invention.

[0073] As a preferred embodiment, the detergent dispensing device of the present invention further includes an anti-backflow unit connected to the inlet of the dissolving chamber, which is capable of preventing at least a portion of the liquid in the dissolving chamber from flowing back.

[0074] In one specific embodiment, the anti-backflow unit includes a connecting pipe 3, which has a connecting pipe inlet 302 and a connecting pipe outlet 301. The connecting pipe outlet 301 is connected to the inlet of the dissolving chamber 1. The connecting pipe 3 of this invention is disposed between the dissolving chamber 1 and the detergent box 4. The purpose of the connecting pipe 3 is to create a water seal at the inlet of the dissolving chamber 1. Because the movement within the dissolving chamber 1 is relatively vigorous, backflow of water and detergent may occur, and foam will be generated during the detergent mixing and dissolving process, leading to detergent residue and waste. The purpose of the connecting pipe 3 in this application is to prevent the backflow of liquid and foam. In practical selection, such as... Figure 2 and Figure 3 As shown, the connecting pipe 3 can be selected, but is not limited to, U-shaped, S-shaped, W-shaped or other more complex shapes to prevent the backflow of liquid and foam in the dissolution chamber 1.

[0075] The present invention provides a washing machine having the detergent dispensing device described above.

[0076] In some implementations, such as Figure 1 and Figure 2As shown, the washing machine includes a detergent dispensing device, a detergent dispenser 4, a connecting pipe 3, an inner drum 5, an outer drum 2, a main water inlet 7, and a spray nozzle 6. The connecting pipe 3 includes a connecting pipe inlet 302 and a connecting pipe outlet 301. The connecting pipe inlet 302 connects to the detergent dispenser outlet 401 of the detergent dispenser 4, and the connecting pipe outlet 301 connects to the inlet of the dissolving chamber 1. The detergent dispenser 4 is connected to the water inlet pipe. During the water intake phase of the washing machine, detergent is first placed in the detergent dispenser 4, and water begins to flow in. The water flow carries the detergent into the connecting pipe 3, and then into the dissolving chamber 1. Driven by the water flow, the friction particles 102 begin to move within the dissolving chamber 1, causing the water and detergent to move together, thereby rapidly mixing and dissolving the detergent. The connecting pipe 3 is an S-shaped pipe, which can prevent the backflow of water and detergent within the dissolving chamber 1, and can also prevent the backflow of foam generated by the detergent dissolving. Simultaneously, the water flow carries the detergent and water, which have been mixed and dissolved with the assistance of friction particles 102, into the main water inlet 7 of the washing machine and into the inner drum 5. Based on this, the detergent and water entering the inner drum 2 are relatively evenly mixed, and the detergent is relatively fully dissolved in the water. After the water intake is complete, the washing machine begins to wash the clothes, and the detergent can achieve a relatively good cleaning effect on the clothes immediately. Therefore, the washing machine of this invention has good cleaning efficiency and effect.

[0077] The present invention also provides a water inlet control method for a washing machine, the washing machine including the detergent dispensing device described above. The water inlet control method includes:

[0078] Step 1) The washing machine controls the main water inlet to turn on, and the water flow carries the detergent into the water inlet channel;

[0079] Step 2) Set the washing machine to shut off the main water inlet at the preset time;

[0080] Step 3) After the preset time is reached, the washing machine will control the main water inlet to start again. When the washing machine detects that the water level in the washing machine has reached the threshold required by the clothes, the washing machine will control the main water inlet to stop again, and the water inlet of the washing machine will end.

[0081] like Figure 4 As shown, in a specific implementation, step 2) preferably involves controlling the water inlet for α seconds, where α has the following relationship:

[0082] in:

[0083]

[0084] Where d is the diameter of the connecting pipe, L is the length of the connecting pipe, ρ is the density of the washing water, and V is the flow rate of the washing machine's inlet valve.

[0085] The control system of the washing machine of this invention, based on parameters d, L, ρ, and V, controls the main water inlet time to α seconds, causing the water flow to stop after entering the water inlet channel, while the spray water inlet continues to enter. During this stage, a water seal is formed by storing a section of water in the connecting pipe 3, and the water and detergent in the connecting pipe 3 and detergent box 4 are pre-mixed to improve the solubility of the detergent before it enters the washing machine.

[0086] As one embodiment, the initial preset water volume can be the water level reaching the bottom of the inner drum 5. Based on this, the spray water intake stops when the washing machine's control system detects that the water level has reached the bottom of the inner drum 5 (water level ≥ β). During this stage, the detergent and water in the connecting pipe 3 and detergent box 4 can be pre-mixed and dissolved. After the spray water intake is closed, the main water intake is reopened. At this time, the detergent and water are mixed and dissolved relatively well. The main water intake is then reopened until the water volume reaches the amount required for washing clothes (water level ≥ γ). After the main water intake is reopened, the detergent enters the washing machine, which improves the washing effect on clothes. This invention, by controlling the water intake stage of the washing machine, can improve the dissolution effect and speed of detergent to a certain extent, and reduce detergent residue in the detergent box and the pipes through which detergent flows to a certain extent, thereby improving the degree of detergent dissolution and thus improving the washing efficiency of the washing machine. It has certain practical significance.

[0087] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present invention shall still fall within the scope of the technical solution of the present invention.

Claims

1. A detergent dispensing device, characterized in that, The detergent dispensing device can be configured in the water inlet channel of the washing machine. The detergent dispensing device includes a dissolving unit, which includes a dissolving chamber (1). The dissolving chamber (1) has an inlet and an outlet, wherein: The dissolution chamber (1) is provided with a friction medium; The dissolving chamber (1) is provided with a blocking component that allows water and detergent to pass through and keeps the friction medium always within the dissolving chamber (1); Driven by the water flow: the friction medium can come into contact with water and detergent in the dissolving chamber (1), and the dissolving chamber (1) can introduce water and detergent into the washing machine; The friction medium includes friction elements, which are placed in the dissolution chamber (1); the friction elements are friction particles (102); the number of friction elements is multiple; In this case, the direction in which the water flows into the dissolving cavity (1) is the same as the direction of gravity, and the density of the friction medium is less than the density of water; or, the direction in which the water flows into the dissolving cavity (1) is opposite to the direction of gravity, and the density of the friction medium is greater than the density of water, so that the friction particles (102) maintain a tendency to move in the opposite direction to the direction in which the water flows into the dissolving cavity (1).

2. The detergent dispensing device according to claim 1, characterized in that, The blocking assembly includes a second baffle (101), which is located at the outlet of the dissolving chamber (1).

3. The detergent dispensing device according to claim 2, characterized in that, The blocking assembly also includes a first baffle (104), which is disposed at the inlet of the dissolving chamber (1).

4. A detergent dispensing device according to claim 3, characterized in that, The first baffle (104) is detachably disposed in the dissolution chamber (1), and / or the second baffle (101) is detachably disposed in the dissolution chamber (1).

5. A detergent dispensing device according to claim 1, characterized in that, The detergent dispensing device also includes an anti-backflow unit, which is connected to the inlet of the dissolving chamber (1) and can prevent at least a portion of the liquid in the dissolving chamber (1) from flowing back.

6. A detergent dispensing device according to claim 5, characterized in that, The anti-backflow unit includes a connecting pipe (3), which has a connecting pipe inlet (302) and a connecting pipe outlet (301). The connecting pipe outlet (301) is connected to the inlet of the dissolving chamber (1).

7. A washing machine, characterized in that, The washing machine includes the detergent dispensing device according to any one of claims 1-6.

8. A water inlet control method for a washing machine, characterized in that, The washing machine includes a detergent dispensing device according to any one of claims 1-7, and the water inlet control method specifically includes the following steps: Step 1) The washing machine controls the main water inlet to turn on, and the water flow carries the detergent into the water inlet channel; Step 2) Set the washing machine to shut off the main water inlet at the preset time; Step 3) After the preset time is reached, the washing machine will control the main water inlet to start again. When the washing machine detects that the water level in the washing machine has reached the threshold required by the clothes, the washing machine will control the main water inlet to stop again, and the water inlet of the washing machine will end.

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