A laundry treatment agent dispensing control method and a washing machine

Abstract

The present application belongs to the technical field of clothes treating equipment, and discloses a clothes treating agent dispensing control method and a washing machine. The dispensing control method comprises the following steps: S1, controlling the inner drum to rotate at a first set rotating speed, so that the load in the drum adheres to the inner wall of the inner drum under the action of centrifugal force; S2, adding clothes treating agent to the water inflow of the washing machine, mixing through a mixing unit, and dispensing the mixed clothes treating agent solution to the load surface adhered to the inner wall of the inner drum. In the present application, the load in the drum adheres to the inner wall of the inner drum by controlling the rotation of the inner drum, the clothes treating agent and the water inflow are fully mixed in the mixing unit, and then the clothes treating agent is dispensed to the load surface during the continuous rotation of the inner drum. The load in the drum continuously passes through the coverage area of the clothes treating agent solution dispensing, and then the load in the drum and the clothes treating agent are uniformly and fully contacted, thereby improving the washing effect.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of clothes treatment equipment, in particular, relates to a clothes treatment agent dispensing control method and a washing machine. BACKGROUND

[0002] The washing machine in the prior art generally dispenses the clothes treatment agent such as detergent and softener along with the water flow in the water inlet process, and the clothes treatment agent is directly flushed into the inner drum of the washing machine by the water flow. This dispensing method is not conducive to the full mixing of the clothes treatment agent and the water flow, resulting in that the clothes treatment agent cannot be fully dissolved when being put into the inner drum and is quickly deposited at the bottom in the inner drum. Especially in the initial stage of washing, the detergent is not fully dissolved in the water, and the initial washing is only to wash the clothes with water without the addition of detergent solution, which leads to poor washing effect. After a period of time after the start of washing, most of the detergent can be uniformly distributed in the water along with the rotation of the inner drum, so as to fully contact with the clothes to remove the stains on the clothes. In order to ensure the washing effect, it is necessary to prolong the washing time, which causes the prolongation of the overall washing time and leads to the increase of energy consumption, and also increases the degree of wear of the clothes.

[0003] On the other hand, since the clothes treatment agent is not fully mixed with the water flow before entering the inner drum, part of the clothes treatment agent solution with high concentration may be directly absorbed by the clothes in the inner drum, which is more unfavorable to the subsequent dissolution process of the clothes treatment agent. If the amount of clothes in the inner drum is large during the water inlet process, it may not be possible to wet all the clothes, and even part of the clothes is not completely soaked after several minutes of starting washing, and thus cannot fully contact with the clothes treatment agent. The clothes treatment agent acts unevenly on the clothes in the drum, resulting in low utilization efficiency of the clothes treatment agent, which causes the waste of the clothes treatment agent.

[0004] In view of this, the present application is proposed. SUMMARY

[0005] The technical problem to be solved by the present application is to overcome the shortcomings of the prior art, and to provide a clothes treatment agent dispensing control method and a washing machine. The clothes treatment agent and the water flow can be fully mixed by a mixing unit before being put into the inner drum, and the inner drum is continuously rotated during the dispensing process, so that the load in the drum is attached to the inner wall of the inner drum, and the clothes treatment agent solution is uniformly put onto the surface of the load by the rotation of the inner drum, which is conducive to the uniform and full contact between the load in the drum and the clothes treatment agent, and improves the washing effect.

[0006] To solve the above technical problems, the basic idea of the technical solution of the present application is:

[0007] A clothes treatment agent dispensing control method, comprising the following steps:

[0008] S1, rotating the inner drum at a first set rotating speed, so that the load in the drum adheres to the inner wall of the inner drum under the action of centrifugal force;

[0009] S2, adding a laundry treatment agent to the water inflow of the washing machine, mixing through a mixing unit, and putting the mixed laundry treatment agent solution onto the surface of the load adhering to the inner wall of the inner drum.

[0010] Further, after step S2, step S3 is further included: the washing machine continues to add water, stops adding the laundry treatment agent, and the inner drum continues to rotate at the first set rotating speed.

[0011] Further, after step S3, step S4 is further included: stopping adding water, and controlling the rotating speed of the inner drum to reduce to a second set rotating speed and continue to rotate;

[0012] Preferably, the inner drum rotates at the second set rotating speed, and the load in the drum is turned over with the rotation of the inner drum.

[0013] Further, step S3 is continuously executed for a first preset time length, and step S4 is executed.

[0014] Alternatively, the washing machine executes step S4 when the continuous water inflow amount during step S3 reaches a preset water inflow amount.

[0015] Further, step S4 is continuously executed for a second preset time length, and the process returns to step S1.

[0016] Further, step S4 is continuously executed for a second preset time length, and the washing machine determines whether the execution number n of step S2 reaches a preset number N, if yes, the dispensing process is ended, otherwise, the process returns to step S1.

[0017] Preferably, before step S1 is executed for the first time, step S0 is further included: determining a total amount X of the laundry treatment agent according to the load information in the drum and / or the washing program information, and calculating the preset number N according to a single dispensing amount X0 of the laundry treatment agent in step S2 and the total amount X.

[0018] More preferably, the washing machine determines the value of the single dispensing amount X0 according to the load information in the drum and / or the washing program information.

[0019] Further, step S4 is continuously executed for a second preset time length, and the washing machine detects the turbidity value of the water in the drum, if the detected turbidity value is less than or equal to a preset turbidity value, the dispensing process is ended, otherwise, the process returns to step S1.

[0020] Further, in step S2, the mixed laundry treatment agent solution is sprayed onto the surface of the load in the drum.

[0021] Preferably, the laundry treatment solution is sprayed from the opening of the inner tub into the inner tub, the sprayed laundry treatment solution has a coverage area on the bottom of the inner tub, and the coverage area extends at least from the outer periphery of the bottom to the center position of the bottom.

[0022] Another object of the present application is to provide a washing machine using the laundry treatment solution dispensing control method described above, comprising:

[0023] an inner tub;

[0024] a water inlet device for performing a water inlet operation;

[0025] a dispensing device for adding the laundry treatment solution to the water inlet flow and dispensing the laundry treatment solution, the dispensing device comprising a mixing unit for mixing the laundry treatment solution and water.

[0026] Further, the mixing unit comprises:

[0027] a mixing tank provided with an inlet and an outlet, the water inlet flow with the laundry treatment solution added thereto entering the mixing tank through the inlet and being mixed therein;

[0028] an auxiliary mixer provided in the mixing tank and having a certain liquid receiving capacity;

[0029] the water inlet flow entering through the inlet impacts the liquid already received in the auxiliary mixer, the laundry treatment solution in the liquid is mixed with water under the impact, and the overflowed liquid is discharged from the auxiliary mixer and then discharged from the outlet of the mixing tank;

[0030] Preferably, the dispensing device further comprises a nozzle in communication with the outlet of the mixing tank, the liquid discharged from the mixing tank is sprayed through the nozzle and sprayed onto the load surface in the inner tub.

[0031] After the above technical solution is adopted, the present application has the following beneficial effects compared with the prior art.

[0032] In the present application, the rotation of the inner tub makes the load in the inner tub adhere to the inner wall of the inner tub, thereby increasing the spreading area of the load. The laundry treatment solution and the water inlet flow are fully mixed in the mixing unit, and then the laundry treatment solution is dispensed during the rotation of the inner tub. The dispensed laundry treatment solution can only cover a local area, but the load at different positions in the inner tub can continuously pass through the coverage area of the dispensed laundry treatment solution with the rotation of the inner tub, thereby realizing the uniform dispensing of the laundry treatment solution to the load surface, expanding the contact area between the laundry treatment solution and the load in the inner tub, and facilitating the uniform and sufficient contact between the load in the inner tub and the laundry treatment solution. The above dispensing method avoids the problem that the laundry treatment solution is deposited at the bottom of the inner tub at the initial stage of washing, improves the utilization rate of the laundry treatment solution, and is beneficial to improving the washing effect. At the same time, the washing time can be shortened while improving the washing ratio, which is beneficial to reducing energy consumption.

[0033] In the present application, after the first dispensing of the laundry treatment agent is completed, water is continuously fed into the inner drum, which can increase the water content of the load in the drum and achieve the purpose of quickly wetting the laundry. The feeding of water is stopped after a period of time, and the inner drum is controlled to rotate at a low speed before the next dispensing is started, so that the load in the drum is turned over in the inner drum, which has a similar effect to hand-wringing, and the laundry treatment agent solution that has been dispensed is more evenly attached to the load.

[0034] In the present application, the laundry treatment agent solution is dispensed into the inner drum by spraying, which can further enhance the mixing effect of the laundry treatment agent and water at the same time of spraying, and also can increase the area of the coverage area formed by the spraying into the inner drum, thereby further increasing the contact area of the laundry treatment agent and the load in the drum during the dispensing process, and further improving the effect of the laundry treatment agent.

[0035] In the present application, the mixing unit for mixing the laundry treatment agent and the water flow includes a mixing tank and an auxiliary mixer, the water flow entering the mixing tank is received by the auxiliary mixer, and the subsequent water flow can impact the liquid in the auxiliary mixer, so that the laundry treatment agent and water in the liquid are fully mixed before overflowing from the auxiliary mixer and being discharged from the mixing tank, which effectively improves the mixing degree of the laundry treatment agent and the water flow, and is beneficial to improving the utilization rate of the laundry treatment agent.

[0036] The specific embodiments of the present application will be described in further detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS

[0037] The accompanying drawings are part of the present application and serve to provide a further understanding of the present application, the schematic embodiments of the present application and their descriptions serve to explain the present application, but do not constitute an improper limitation on the present application. Obviously, the drawings described below are only some embodiments, and other drawings can be obtained by those skilled in the art without creative labor. In the drawings:

[0038] Figure 1 is a structural schematic diagram of a washing machine in an embodiment of the present application;

[0039] Figure 2 is a structural schematic diagram of a dispensing device in an embodiment of the present application;

[0040] Figure 3 is a flow chart of a dispensing control method of a laundry treatment agent in an embodiment one of the present application;

[0041] Figure 4 is a schematic diagram of a nozzle of the present application;

[0042] Figure 5 is a schematic diagram of a mixing unit in an embodiment two of the present application;

[0043] Figure 6 is the internal structure schematic diagram of the mixing unit in the second embodiment of the application;

[0044] Figure 7 is the flow schematic diagram of the liquid in the mixing tank in the second embodiment of the application;

[0045] Figure 8 is the perspective structure schematic diagram of the mixing unit from the top view in the second embodiment of the application;

[0046] Figure 9 is the structure schematic diagram of the auxiliary mixer in the second embodiment of the application.

[0047] In the figure: 100, mixing tank; 101, liquid inlet; 102, liquid outlet; 103, mounting part; 110, upper shell; 120, lower shell; 200, auxiliary mixer; 210, receiving part; 211, limiting part; 212, flow hole; 220, support rod; 300, adding unit; 310, water inlet; 320, liquid outlet; 410, spray pipe; 420, spray head; 510, inner cylinder; 511, inner cylinder shaft; 520, outer cylinder; 531, water inlet valve; 532, water inlet pipe; 541, driving motor; 542, transmission belt.

[0048] It should be noted that these drawings and textual descriptions are not intended to limit the scope of the concept of the application in any way, but to illustrate the concept of the application to those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0049] In order to make the purpose, technical scheme and advantages of the embodiments of the application more clear, the technical scheme in the embodiments will be described clearly and completely below in conjunction with the drawings in the embodiments of the application. The following embodiments are used to illustrate the application, but are not used to limit the scope of the application.

[0050] In the description of the application, it should be noted that the terms "upper", "lower", "vertical", "inner", "outer" and the like indicate the orientation or positional relationship 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 devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the application.

[0051] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connecting" should be understood in a broad sense, for example, can be fixedly connected, or detachably connected, or integrally connected, can be directly connected, or indirectly connected through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0052] Embodiment one

[0053] The present embodiment provides a laundry treatment agent dispensing control method and a washing machine applying the same. The laundry treatment agent includes, but is not limited to, detergent, softener, disinfectant, etc.

[0054] As shown in Figure 1 and Figure 2 The washing machine of the present embodiment includes:

[0055] an outer tub 520;

[0056] an inner tub 510 coaxially arranged inside the outer tub 520;

[0057] a water inlet device for performing a water inlet operation;

[0058] a dispensing device for adding a laundry treatment agent to a water inlet flow and dispensing the laundry treatment agent, the dispensing device including a mixing unit for mixing the laundry treatment agent with water.

[0059] Specifically, the water inlet device includes a water inlet valve 531 for controlling water inlet of the washing machine, and a water inlet pipe 532 for conveying the water inlet flow.

[0060] The dispensing device includes an adding unit 300, a mixing unit and a spraying unit connected in sequence. The adding unit 300 includes a water inlet port 310 connected with the outlet of the water inlet pipe 532, and a liquid outlet 320. The adding unit 300 is connected with a liquid storage cavity for storing the laundry treatment agent. The water inlet flow enters the adding unit 300 from the water inlet port 310 through the water inlet valve 531 and the water inlet pipe 532, the adding unit 300 adds the laundry treatment agent to the water inlet flow, and then sends the water inlet flow containing the laundry treatment agent out through the liquid outlet 320.

[0061] The mixing unit includes a mixing tank 100, and the mixing tank 100 is provided with an inlet 101 and an outlet 102. The inlet 101 is in communication with the liquid outlet 320 of the adding unit 300, and the laundry treatment agent flowing out of the liquid outlet 320 and water enter the mixing tank 100 through the inlet 101 and mix inside the mixing tank 100. After sufficient mixing, the laundry treatment agent solution is discharged through the outlet 102 of the mixing tank 100.

[0062] The spraying unit comprises a spraying pipe 410 connected to the liquid outlet 102 of the mixing tank 100, and a spraying head 420 arranged at the outlet end of the spraying pipe 410, and the fully mixed laundry treatment agent solution is sprayed out through the spraying head 420 and sprayed into the inner drum 510, so that the laundry treatment agent can achieve a larger coverage area.

[0063] The washing machine of the embodiment further comprises a driving motor 541 for driving the rotation of the inner drum 510. Specifically, the bottom of the inner drum 510 is connected to an inner drum shaft 511 penetrating through the bottom of the outer drum 520, the driving motor 541 is arranged below the outer drum 520, and the output shaft of the driving motor 541 is in driving connection with the inner drum shaft 511 through a transmission belt 542 to drive the rotation of the inner drum 510.

[0064] It should be noted that the direct-drive type drum washing machine can also apply the following laundry treatment agent dispensing control method.

[0065] In the embodiment, the laundry treatment agent dispensing control method comprises the following steps as shown in Figure 3

[0066] S1, control the inner drum to rotate at a first set speed, so that the load in the drum adheres to the inner wall of the inner drum under the action of centrifugal force;

[0067] S2, add the laundry treatment agent to the water flow of the washing machine, mix through the mixing unit, and dispense the mixed laundry treatment agent solution to the load surface adhered to the inner wall of the inner drum.

[0068] Specifically, after the washing machine receives the instruction to start the washing program, the dispensing of the laundry treatment agent is performed according to the above dispensing control method.

[0069] In step S1, the computer board of the washing machine controls the driving motor 541 to start and drive the inner drum 510 to rotate at a first set speed. The first set speed is relatively high, for example, 90-100 rpm, so that the load in the inner drum 510 can be evenly spread on the inner side of the side wall of the inner drum 510 under the action of centrifugal force, thereby increasing the surface area of the load, which is beneficial to quickly wet the load when the water flow enters the inner drum 510.

[0070] ​In step S2, the inlet valve 531 is opened, and water flows through the inlet valve 531 and inlet pipe 532 into the adding unit 300. The water flows through the adding unit 300, where laundry detergent is added. The water carries the detergent into the mixing tank 100, where it is thoroughly mixed to obtain a uniformly mixed laundry detergent solution. The laundry detergent solution flows through the spray pipe 410 and is finally sprayed into the inner cylinder 510 by the spray nozzle 420, forming a certain area of ​​coverage within the inner cylinder 510, achieving the effect of directly spraying the laundry detergent solution onto the load surface. Simultaneously, the load inside the cylinder continuously passes through the covered area as the inner cylinder 510 rotates, thus ensuring that the load is evenly contacted with the laundry detergent solution and wetted.

[0071] Steps S1 and S2 can be executed simultaneously. That is, after the washing machine receives the instruction to start the washing program, it controls the drive motor 541 to start and opens the water inlet valve 531 at the same time.

[0072] In detail, the nozzle opening of nozzle 420 is as follows: Figure 4 As shown, the shape is wider at the top than at the bottom, which can increase the spray distance of the laundry detergent solution through the nozzle 420. In particular, it can increase the difference in spray distance between the upper and lower ends of the nozzle 420, which is beneficial to increase the coverage area of ​​the solution, so that the load in the drum can come into more full contact with the laundry detergent and improve the washing effect.

[0073] In this embodiment, the nozzle 420 is installed at the opening of the inner cylinder 510. The laundry detergent solution is sprayed into the cylinder from the opening, forming a strip-shaped coverage area on the cylinder wall that is nearly parallel to the axis of the inner cylinder 510. The strip-shaped coverage area extends from the opening to the bottom of the cylinder, so that as the inner cylinder 510 rotates, the load adhering to the inner wall of the inner cylinder 510 can directly contact the sprayed laundry detergent solution.

[0074] The furthest point of the laundry detergent solution spray can be sprayed onto the bottom of the inner drum 510, thus forming a certain size of coverage area on the bottom of the inner drum 510, ensuring that the load adhering to the bottom of the inner drum 510 can also be wetted by the laundry detergent solution.

[0075] By designing the nozzle structure of spray head 420 to match the dimensions of the inner drum 510, the coverage area of ​​the laundry detergent solution on the bottom of the inner drum 510 extends at least from the outer periphery to the center of the bottom. For example, a strip-shaped coverage area extending upwards from the lowest point of the bottom to the center of the bottom is formed on the bottom of the inner drum 510. In this way, during the rotation of the inner drum 510, the entire bottom of the inner drum 510 can pass through the coverage area of ​​the laundry detergent solution, thereby ensuring that the load inside the drum can fully contact the laundry detergent and achieve uniform spraying of the laundry detergent solution onto the load surface.

[0076] In this embodiment, the nozzle 420 is installed at the highest position near the opening of the inner drum 510, and the sprayed laundry treatment agent solution is sprayed in a parabolic shape to the load surface in the drum.

[0077] It should be noted that the installation position of the nozzle can also be changed, for example, installed at any position around the opening of the drum, and the nozzle direction and structure are adjusted accordingly, as long as the sprayed laundry treatment agent solution can cover the entire range from the opening of the drum to the bottom of the drum, and cover a certain area extending from the outer periphery to the center of the bottom of the drum, and cooperate with the above-mentioned dispensing control method, the same effect of uniformly spraying the laundry treatment agent solution to the load surface can be achieved.

[0078] In a further scheme of this embodiment, after step S2, step S3 is further included: the washing machine continues to water, stops adding laundry treatment agent, and the inner drum keeps rotating at the first set speed.

[0079] When the amount of laundry treatment agent added in step S2 reaches a certain amount, the adding unit 300 stops adding laundry treatment agent, and at the same time, the water inlet valve 531 remains open, and continues to spray water into the inner drum 510 through the water inlet pipe 532, the adding unit 300, the mixing tank 100, the spraying pipe 410 and the nozzle 420. On the one hand, it can carry out the laundry treatment agent remaining in the mixing tank 100, and ensure that the laundry treatment agent added in step S2 fully enters the inner drum 510. On the other hand, the total amount of liquid sprayed into the inner drum 510 in step S2 is limited, and when the load in the drum is large, the side of the load close to the inner wall of the inner drum 510 may not be wet. Continuing to spray water into the inner drum 510 can further increase the water content of the load, so that the load in the drum is fully soaked before starting the washing / rinsing process.

[0080] In this embodiment, after step S3, step S4 is further included: stopping water, controlling the rotation speed of the inner drum to reduce to the second set speed and keeping rotating.

[0081] In step S4, the water inlet valve 531 is closed, and the driving motor 541 is controlled to reduce the output speed to drive the inner drum 510 to rotate at the second set speed. The second set speed can be 30-40 rpm, and the centrifugal force acting on the load is greatly reduced, so that the load is no longer attached to the inner wall of the inner drum 510, but is lifted to a certain height and then falls down with the rotation of the inner drum 510, so that the load in the drum is turned over in the inner drum 510 with the rotation of the inner drum 510.

[0082] In this stage, the load in the drum is turned over by the low-speed rotation of the inner drum 510, which has the effect of hand-washing kneading, so that the load forms a stirring action on the laundry treatment agent solution in the drum, and the already dispensed laundry treatment agent solution can be more uniformly attached to the load.

[0083] In one embodiment of the present embodiment, step S3 is executed for a first preset time period, and then step S4 is executed. The washing machine can automatically determine the value of the first preset time period according to the load in the drum, to ensure that the load in the drum can be sufficiently wetted.

[0084] In another embodiment of the present embodiment, the washing machine is provided with a flow sensor for detecting the amount of water entering the inner drum 510 through the water inlet pipe 532. The washing machine executes step S4 when the detected continuous water inlet amount reaches a preset water inlet amount during the execution of step S3. The specific value of the preset water inlet amount can be automatically determined by the washing machine according to the load in the drum, to ensure that the load in the drum is sufficiently wetted.

[0085] In a further aspect of the present embodiment, step S4 is executed for a second preset time period, and then returns to step S1.

[0086] Specifically, step S4 is executed for a second preset time period, and then the washing machine determines whether the execution number n of step S2 reaches a preset number N. If yes, the dispensing process is ended, otherwise, it returns to step S1.

[0087] In the above aspect, the washing machine dispenses the laundry treatment agent into the inner drum 510 in multiple times, to complete the dispensing process of the laundry treatment agent. After a certain amount of laundry treatment agent is dispensed each time, a certain amount of water is further added into the inner drum 510, and then the solution of the laundry treatment agent that has been dispensed is mixed with the load sufficiently and uniformly by reducing the rotation speed of the inner drum 510. Since the amount of laundry treatment agent dispensed each time is relatively small, compared with the mode of dispensing a large amount of laundry treatment agent at one time, it is more conducive to the uniform and sufficient contact between the load in the drum and the laundry treatment agent, and improves the washing effect.

[0088] In a specific aspect of the present embodiment, before the first execution of step S1, step S0 is further included, which comprises determining the total amount X of the laundry treatment agent to be dispensed according to the load information in the drum and / or the washing program information, and calculating the preset number N according to the single dispensing amount X0 of the laundry treatment agent in step S2 and the total amount X of the laundry treatment agent.

[0089] Further, the washing machine determines the value of the single dispensing amount X0 according to the load information in the drum and / or the washing program information.

[0090] The load information in the drum includes but is not limited to the load amount, color information, material information, and dirtiness, etc. The load information in the drum can be determined by receiving the setting operation information of the user, or a recognition device can be provided on the washing machine to recognize the load in the drum and obtain the relevant information.

[0091] The washing program information at least includes the program type and / or program parameters. The washing program information can be determined by receiving the setting operation of the user on the washing program, or the washing program information can be automatically generated according to the obtained load information in the drum, to further determine the washing program information.

[0092] In another aspect of the embodiment, the washing machine does not preset the total amount of the laundry treatment agent to be dispensed before starting the dispensing, but detects relevant parameters during the dispensing to determine whether to continue the dispensing process.

[0093] Specifically, the step S4 is continuously performed for a second preset time length, and the washing machine detects the turbidity value of the water in the tub. If the detected turbidity value reaches a preset turbidity value, the dispensing process is ended, otherwise, it returns to step S1.

[0094] The above scheme is mainly applicable to the dispensing process of the detergent. As the amount of the detergent being dispensed into the inner tub 510 increases, the turbidity value of the water in the tub gradually decreases. When it is detected that the current turbidity value of the water in the tub decreases to a preset turbidity value or lower, it indicates that the current total amount of the detergent dispensed can be well adapted to the load amount in the tub and the dirtiness of the load. At this time, the dispensing process is ended, and the washing machine continues to fill water to the set washing water level for washing, which can obtain a washing ratio that meets the user's demand, while avoiding the problems of waste caused by excessive dispensing of the detergent, or the situation of detergent residue after the completion of the washing of the load due to insufficient removal of the detergent in the rinsing process.

[0095] The laundry treatment agent dispensing control method provided in the embodiment can be applied to a washing machine, which can avoid the problem that the dispensed laundry treatment agent directly sinks to the bottom of the inner tub 510 and needs to be gradually dissolved and contacted with the load during the washing / rinsing process, thereby causing a low utilization rate of the laundry treatment agent.

[0096] The laundry treatment agent is sprayed into the inner tub 510 after being fully mixed with the water flow, and at the same time, the load in the tub is attached to the inner wall of the inner tub 510 due to the high-speed rotation of the inner tub 510, and is flipped by the low-speed rotation of the inner tub 510 between two adjacent dispensing processes, which is beneficial to the load in the tub being quickly and fully wetted by the laundry treatment agent solution. At the same time, the laundry treatment agent solution and the load in the tub can be fully contacted and uniformly mixed, thereby improving the washing ratio and improving the washing effect. On the other hand, since the laundry treatment agent does not need to be gradually dissolved during the washing / rinsing process, the overall washing time can be shortened, thereby achieving the purpose of reducing energy consumption.

[0097] Embodiment Two

[0098] As shown in Figure 1 , Figure 2 and Figures 5 to 9 , the embodiment is a further limitation of the above-mentioned embodiment one, and the mixing unit further comprises an auxiliary mixer 200 arranged inside the mixing tank 100 and having a certain liquid receiving capacity.

[0099] The water flow entering through the liquid inlet 101 impacts the liquid already received in the auxiliary mixer 200, and the laundry treatment agent in the liquid mixes with the water under the impact and overflows from the auxiliary mixer 200. The overflowed liquid is discharged from the liquid outlet 102 of the mixing tank 100. The flow path of the liquid entering and exiting the mixing tank 100 is specifically shown by arrows in Figure 7 the figure. In this way, the water flow entering the mixing tank 100 will not be directly discharged from the liquid outlet 102, avoiding the situation that the laundry treatment agent is not fully mixed with the water and is directly put into the inner drum 510 of the washing machine, resulting in uneven concentration of the laundry treatment agent solution absorbed by the load in the drum.

[0100] In the specific scheme of the embodiment, the auxiliary mixer 200 includes a receiving portion 210 arranged below the liquid inlet 101. The upper side surface of the receiving portion 210 is concave downward, forming a mixing space with an open upper side. The liquid outlet 102 of the mixing tank 100 is lower than the opening of the upper side of the mixing space. The liquid entering the mixing tank 100 is received in the mixing space, and the laundry treatment agent mixed therein and the water are mixed under the impact of the subsequent liquid entering, and overflow through the opening of the upper side of the mixing space and are discharged through the liquid outlet 102.

[0101] In the above scheme, the water flow containing the laundry treatment agent enters the mixing tank 100 through the liquid inlet 101. At the beginning stage, the entering liquid impacts the upper side surface of the receiving portion 210. Since the upper side surface of the receiving portion 210 is concave to form the mixing space, the entering liquid will not directly flow to the liquid outlet 102 bypassing the receiving portion 210, but will be temporarily stored in the mixing space. Only when the subsequent liquid (which can be a mixed solution of the laundry treatment agent and water, or water not containing the laundry treatment agent) continues to enter the mixing tank 100, the liquid level in the mixing space rises, and the liquid will overflow from the opening of the upper side of the mixing space, flow downward, and then be discharged from the liquid outlet 102 of the mixing tank 100. The liquid entering the mixing tank 100 falls onto the liquid level in the mixing space, continuously impacting the liquid already in the mixing space, so that the laundry treatment agent and the water therein are fully mixed before overflowing, ensuring that the overflowed liquid is not simply the laundry treatment agent or water.

[0102] By setting the auxiliary mixer 200 with a certain liquid receiving capacity in the mixing tank 100, the auxiliary mixer 200 can receive a certain amount of mixed solution through the receiving part 210, and the liquid in the receiving part 210 can be impacted by the subsequent entering liquid to achieve the purpose of fully mixing the laundry treatment agent and water. In this way, the laundry treatment agent can be more fully mixed and dissolved before it is discharged from the mixing tank 100, and the discharge control method described in Embodiment 1 can be used for discharge to achieve more sufficient contact between the laundry treatment agent and the load being washed in the early stage of the washing / rinsing stage. Especially for the detergent discharged by the washing machine in the washing stage, the utilization efficiency of the detergent in the early stage of washing can be effectively improved, thereby improving the washing ratio of the clothes, and at the same time, it is beneficial to shorten the washing time of the washing machine and achieve the effect of reducing energy consumption.

[0103] In the preferred scheme of the present embodiment, the liquid inlet 101 is arranged at the top of the mixing tank 100. This arrangement can maximize the vertical distance between the liquid inlet 101 and the receiving part 210 under the condition that the shape and size of the mixing tank 100 are fixed, thereby improving the impact force of the liquid to the receiving part 210, and achieving a more sufficient mixing effect.

[0104] The liquid outlet 102 is arranged at the bottom of the mixing tank 100, preferably at the lowest position of the mixing tank 100, so that the liquid overflowing from the upper side of the receiving part 210 can more easily flow to the liquid outlet 102 and be smoothly discharged from the mixing tank 100.

[0105] In a further scheme of the present embodiment, the receiving part 210 has a bowl-shaped structure with a lower middle part than the surrounding part, and the laundry treatment agent and water fall into the bowl-shaped structure through the liquid inlet 101 and overflow from the bowl opening of the bowl-shaped structure.

[0106] Preferably, the downward projection of the liquid inlet 101 covers the lowest position of the bowl-shaped structure, further increasing the falling distance of the liquid entering through the liquid inlet 101 when impacting on the receiving part 210, and ensuring the mixing effect.

[0107] The outer periphery of the bowl opening of the bowl-shaped structure of the receiving part 210 has a certain interval with the inner wall of the mixing tank 100, and the liquid overflowing from the bowl-shaped structure flows to the liquid outlet 102 through the interval.

[0108] Further, the bowl opening of the bowl-shaped structure of the receiving part 210 is provided with a limiting part 211 protruding outwardly around the periphery, the limiting part 211 abuts against the inner wall of the mixing tank 100, and the limiting part 211 forms an interval for the overflowing liquid to pass through along the two sides of the bowl opening in the circumferential direction.

[0109] By setting the limiting part 211 at the bowl mouth, the relative position of the receiving part 210 in the mixing tank 100 can be defined, and enough space for the overflow liquid to flow downward can be ensured at the outer periphery of the bowl mouth of the receiving part 210, so that the overflow liquid can flow smoothly to the lower side of the receiving part 210 after the mixing is completed, and then be discharged from the mixing tank 100 through the liquid outlet 102.

[0110] Preferably, a plurality of limiting parts 211 are arranged along the circumference of the bowl mouth of the receiving part 210, and a space for the overflow liquid to pass through is formed between two adjacent limiting parts 211.

[0111] In the specific scheme of the embodiment, four limiting parts 211 are arranged on the receiving part 210, and the four limiting parts 211 are uniformly distributed along the circumference of the bowl mouth. The upper bowl mouth of the receiving part 210 is circular, and the deviation angle between two adjacent limiting parts 211 is 90°. The cross section of the mixing tank 100 perpendicular to the axis of the liquid inlet 101 is also circular, so that the receiving part 210 can be stably positioned in the center of the mixing tank 100 through the four limiting parts 211.

[0112] In the further scheme of the embodiment, a drain hole 212 is arranged on the receiving part 210 to communicate the space on the upper side and the lower side of the receiving part 210. The drain hole 212 is preferably arranged at the lowest position of the receiving part 210.

[0113] In the above scheme, the diameter of the drain hole 212 is much smaller than the diameter of the liquid inlet 101. During the process that the liquid continuously enters the mixing tank 100 through the liquid inlet 101, the amount of liquid leaking out of the receiving part 210 through the drain hole 212 is negligible compared with the amount of liquid overflowing from the open part of the receiving part 210, and thus has no obvious influence on the mixing effect of the laundry treatment agent and water. When the liquid supply to the mixing tank 100 is stopped, the liquid level in the receiving part 210 no longer rises, and the residual liquid in the receiving part 210 can be slowly discharged from the receiving part 210 through the drain hole 212, thereby preventing the problem of residual laundry treatment agent and water in the receiving part 210.

[0114] In the embodiment, the auxiliary mixer 200 further comprises a support part connected to the receiving part 210, and the support part is used to support the receiving part 210 at a certain height in the mixing tank 100. The support part supports the receiving part 210 from below, so that the auxiliary mixer 200 can be stably fixed in the mixing tank 100, and the receiving part 210 can be prevented from moving downward or even being overturned due to the impact of the mixed solution, thereby affecting the mixing effect of the laundry treatment agent and water.

[0115] Further, a plurality of protruding mounting parts 103 are arranged on the inner wall of the mixing tank 100, and the support part comprises a plurality of support rods 220. The upper end of the support rod 220 is connected to the receiving part 210, and the lower end of the support rod 220 abuts against the upper surface of the mounting part 103.

[0116] Specifically, three mounting portions 103 are uniformly arranged on the inner wall of the mixing tank 100 in the embodiment. Three support rods 220 are correspondingly arranged, the upper end of the support rod 220 is connected to the outer surface of the bottom region of the receiving portion 210, and the support rod 220 extends downwardly and inclines gradually towards the inner wall of the mixing tank 100 until the lower end is supported on the mounting portion 103, so that the structure is more stable.

[0117] In the embodiment, the mixing tank 100 is assembled by the upper shell 110 and the lower shell 120 arranged in two parts. The liquid inlet 101 is arranged on the top of the upper shell 110, and the liquid outlet 102 is arranged on the bottom of the lower shell 120. The mounting portion 103 is arranged on the inner wall of the lower shell 120, the auxiliary mixer 200 is placed inside the lower shell 120, supported above the mounting portion 103 by the support rod 220, and then the upper shell 110 is buckled with the lower shell 120. The limiting portion 211 on the outer periphery of the open upper side of the receiving portion 210 abuts against the inner wall of the upper shell 110, so that the auxiliary mixer 200 is stably fixed inside the mixing tank 100.

[0118] The mixing tank 100 is centrally symmetrical about the vertical direction, the axes of the liquid inlet 101 and the liquid outlet 102 coincide with the symmetry axis of the mixing tank 100, and the receiving portion 210 of the auxiliary mixer 200 is also centrally symmetrical about the symmetry axis, and the flow hole 212 on the receiving portion 210 is located on the symmetry axis.

[0119] The mixing tank 100 in the embodiment is in the shape of an ellipsoid. It can be understood that the mixing tank can be arranged in other shapes, such as a spherical shape, a square shape, etc., and the shape of the auxiliary mixer can be correspondingly adjusted to achieve the same effect.

[0120] The mixing tank 100 for mixing the laundry treatment agent and water is arranged in the laundry treatment agent dispensing device in the embodiment, and the auxiliary mixer 200 with a certain liquid receiving capacity is arranged inside the mixing tank 100. The liquid entering the mixing tank 100 is received in the receiving portion 210 of the auxiliary mixer 200, and the subsequent liquid entering the receiving portion 210 produces an impact effect on the liquid in the receiving portion 210, thereby achieving sufficient mixing of the laundry treatment agent and water. The laundry treatment agent can be put into the inner drum 510 of the washing machine after being fully dissolved, and the washing effect can be further improved.

[0121] The above merely describes the preferred embodiments of the present application, and is not intended to limit the present application in any form. Although the present application has been disclosed with the preferred embodiments as above, it is not intended to limit the present application, and any person skilled in the art can make some changes or modifications to the above-mentioned technical content with the prompt as equivalent embodiments of equivalent changes without departing from the technical solution of the present application. Any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present application, which does not depart from the technical solution of the present application, still belongs to the scope of the present application.

Claims

1. A method for controlling the application of a clothing treatment agent, characterized in that, Includes the following steps: S1. Control the inner cylinder to rotate at a first set speed, so that the load inside the cylinder adheres to the inner wall of the inner cylinder under the action of centrifugal force; S2. Add laundry detergent to the water inlet of the washing machine, mix it through the mixing unit, and then put the mixed laundry detergent solution onto the load surface that is attached to the inner wall of the inner drum. S3: The washing machine continues to fill with water, stops adding laundry detergent, and the inner drum continues to rotate at the first set speed. S4. Stop water intake, control the rotation speed of the inner cylinder to reduce to the second set speed and continue to rotate, the load inside the cylinder flips with the rotation of the inner cylinder; After step S4 continues for the second preset duration, return to step S1; The mixing unit includes: The mixing tank is equipped with an inlet and an outlet. Water containing the laundry detergent flows into the mixing tank through the inlet for mixing. An auxiliary mixer is installed inside the mixing tank, including a receiving part located below the inlet for receiving the mixed solution; The receiving part is a bowl-shaped structure with the center lower than the surrounding area. The water flow entering through the inlet impacts the liquid already received in the bowl-shaped structure. The laundry detergent in the liquid mixes with the water under the impact and overflows from the bowl-shaped structure, and is discharged through the outlet of the mixing tank.

2. The method for controlling the application of the garment treatment agent according to claim 1, characterized in that, If step S3 continues for the first preset duration, then proceed to step S4. Alternatively, if the washing machine reaches a preset water intake level during step S3, step S4 will be executed.

3. The method for controlling the application of the garment treatment agent according to claim 1, characterized in that, Step S4 continues to execute until the second preset time is reached. The washing machine then determines whether the number of times step S2 has been executed, n, has reached the preset number N. If so, the dispensing process ends; otherwise, it returns to step S1.

4. The method for controlling the application of the garment treatment agent according to claim 3, characterized in that, Before the first execution of step S1, step S0 is also included: determining the total amount X of laundry detergent to be added based on the load information inside the drum and / or the washing program information, and calculating the preset number of times N based on the single amount X0 of laundry detergent added in step S2 and the total amount X.

5. The method for controlling the application of the garment treatment agent according to claim 4, characterized in that, The washing machine determines the value of the single load X0 based on the drum load information and / or washing program information.

6. The method for controlling the application of the garment treatment agent according to claim 1, characterized in that, Step S4 continues until the second preset time is reached. The washing machine detects the turbidity value of the water in the drum. If the detected turbidity value is less than or equal to the preset turbidity value, the loading process ends; otherwise, it returns to step S1.

7. The method for controlling the application of the garment treatment agent according to any one of claims 1-6, characterized in that, In step S2, the mixed clothing treatment solution is sprayed out through the nozzle onto the load surface inside the cylinder.

8. The method for controlling the application of the garment treatment agent according to claim 7, characterized in that, The nozzle is installed at the highest position of the inner tube opening, and the laundry detergent solution is sprayed into the inner tube from the inner tube opening. The nozzle has an upper width greater than a lower width. The sprayed laundry detergent solution forms a strip-shaped coverage area on the inner tube wall that extends from the tube opening to the bottom of the tube. It also has a coverage area on the bottom of the inner tube, and the coverage area on the bottom of the inner tube extends at least from the outer periphery of the bottom of the tube to the center of the bottom of the tube.

9. A washing machine, comprising: Inner cylinder; The water inlet device is used to perform the water inlet operation; A dispensing device for adding laundry detergent to the incoming water flow and dispensing the laundry detergent, the dispensing device including a mixing unit for mixing the laundry detergent with water; The washing machine is characterized by employing the method for controlling the dispensing of the garment treatment agent as described in any one of claims 1-8.

10. The washing machine according to claim 9, characterized in that, The outer periphery of the bowl-shaped structure is spaced apart from the inner wall of the mixing tank; a limiting part protruding outward is provided at the rim of the bowl-shaped structure, the limiting part abuts against the inner wall of the mixing tank, and the limiting part forms a gap along both sides of the circumference of the rim for overflowing liquid to pass through; the liquid overflowing from the rim of the bowl-shaped structure flows through the gap between the outer periphery of the rim and the inner wall of the mixing tank and is discharged to the outlet of the mixing tank; The inner wall of the mixing tank is provided with several protruding mounting parts, and the outer surface of the receiving part is connected to several support rods. The support rods extend downward at an inclination toward the inner wall of the mixing tank, and their lower ends abut against the upper surface of the mounting parts. The dispensing device also includes a nozzle connected to the outlet of the mixing tank, through which the liquid discharged from the mixing tank is sprayed onto the load surface inside the cylinder.

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