A method of dispensing an additive for a washing machine and a washing machine

Abstract

The application provides an additive feeding method of a washing machine. After water flow and the fed additive are mixed in a water supply channel, the mixed solution is directly sprayed into a rotating washing drum. Through the control method, the additive mixed solution is directly and uniformly sprayed onto clothes in the washing drum, so that the clothes to be washed are directly sprayed with the mixed solution, thereby reducing water consumption in the washing process, and the additive is directly and uniformly distributed on the clothes, thereby improving the use efficiency of the additive and reducing the loss of the additive. The application further discloses a washing machine applying the additive feeding method.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of laundry treating apparatuses, in particular to an additive dispensing device of a washing machine, and further to a washing machine provided with the additive dispensing device, and especially to an additive dispensing method applied to the washing machine. BACKGROUND

[0002] The existing washing machine is generally provided with a water containing drum for containing washing water, and a rotatable washing drum is arranged in the water containing drum, and a dewatering hole is formed in the washing drum to communicate the inside and outside of the washing drum, so that the washing water flowing into the water containing drum can flow in and out of the washing drum through the dewatering hole, so as to realize the effect that the washing water contacts with the load to be treated arranged in the washing drum and the load is treated by the washing water.

[0003] The additive dispensing method of the existing washing machine is as follows: the additive is dispensed into the pipeline communicated with the water containing drum of the washing machine by the additive dispensing device, and then the dispensed additive flows into the water containing drum of the washing machine along the pipeline. Therefore, the dispensed additive is in the water containing drum of the washing machine and outside the washing drum, and cannot directly contact with the load arranged in the washing drum.

[0004] Then, when the washing machine performs the washing program, the dispensed additive is mixed with the washing water flowing into the water containing drum, and part of the washing water mixed with the additive flows into the washing drum through the dewatering hole and contacts with the load to be treated in the washing drum, so that a small part of the additive mixed in the washing water contacts with the load and has an effect on the load. Therefore, the conventional additive dispensing method has the problems of low utilization efficiency of the dispensed additive and waste of the additive.

[0005] At the same time, in the conventional additive dispensing method, in order to ensure that the additive dispensed between the water containing drum and the washing drum contacts with the load to be treated in the washing drum, a large amount of water needs to flow into the water containing drum, and only after the water level of the washing water in the water containing drum is higher than that of the washing drum, the washing water can flow into the washing drum through the dewatering hole, and the additive can contact with the load in the washing drum. Therefore, the conventional additive dispensing method also has the problem of excessive water used for dispensing the additive.

[0006] In addition, the existing additive dispensing device generally has an outer shell constituting a water box, and the water box is connected in series with the water inlet pipe of the washing machine. After the additive to be dispensed flows into the water box through the water channel, the additive to be dispensed in the water box is flushed out when the water inlet of the washing machine flows through the water box, and the flushed out additive to be dispensed flows into the water containing drum of the washing machine together with the water inlet, and is outside the washing drum, so as to realize the purpose of dispensing the additive.

[0007] However, the additive dispensing device with the above structure has the following problems:

[0008] 1. The additive needs to flow through the water box for dispensing, which increases the dispensing path of the additive, resulting in more additive residue in the dispensing path and a decrease in the actual amount dispensed.

[0009] 2. The additive flows through the water box and into the water container. Because the cross-section of the water box is larger than that of the water channel, the flow rate of the water flowing through the water box will be slower, which may cause the water flow to fail to rinse the additive in time and leave residues in the water box.

[0010] In view of this, the present invention is hereby proposed. Summary of the Invention

[0011] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art and provide an additive dosing method to achieve the purpose of uniformly mixing water and detergent and then spraying it directly into the washing drum to wash the clothes.

[0012] To achieve the above-mentioned objectives, the basic concept of the technical solution adopted by this invention is as follows:

[0013] This invention provides a method for adding additives to a washing machine. After the inlet water and the added additives are mixed in the water supply circuit, the mixture is directly sprayed into the rotating washing drum.

[0014] Furthermore, the specific steps of the additive application process are as follows:

[0015] Step S1: Add the additive into the water supply system until the amount added reaches the preset amount;

[0016] Step S2: Introduce water into the water supply system;

[0017] Step S3: The incoming water and additives are mixed in the water supply circuit;

[0018] Step S4: The mixture is directly sprayed into the washing drum, and the washing drum rotates around the axis simultaneously.

[0019] Furthermore, during step S2, the specific form of water inflow into the water supply circuit is as follows:

[0020] Step S21: First, water is introduced into the water supply circuit for a second set time t2. Then, step S3 is executed to mix the additives in the water supply circuit to form an additive mixture.

[0021] Step S22: Continue to introduce water into the water supply circuit for a third set time t3 to flush out the additive mixture in the water supply circuit.

[0022] Preferably, before performing step S1, water is continuously introduced into the water supply circuit for a first set time t1 to flush the water supply circuit.

[0023] Further, in the above-mentioned additive feeding process, the specific form of the water flow flowing in the water supply channel is as follows:

[0024] Step S11, water is supplied at a first set water pressure p1 for a first set time t1;

[0025] Step S12, water is supplied at a second set water pressure p2 for a second set time t2;

[0026] Step S13, water is supplied at a third set water pressure p3 for a third set time t3;

[0027] The p1 is greater than p2, and p3 is greater than p2; t1 is greater than t2, and t3 is greater than t2.

[0028] Further, when step S2 is performed, the water flow flowing in the water supply channel is alternately operated in the following steps,

[0029] Step S121, the water inlet of the water supply channel is closed for a first set time period t21, and the water flow no longer flows in the water supply channel;

[0030] Step S122, the water inlet of the water supply channel is opened for a second set time period t22, and the water flow flows in the water supply channel.

[0031] Further, the additive feeding process is divided into multiple feeding units, and each feeding unit is sequentially performed according to the above-mentioned steps S1 to S4;

[0032] Preferably, the interval time between each adjacent feeding unit is T2, the total time of each feeding unit performing the above-mentioned steps S1 to S4 is T1, and T2 is not less than T1;

[0033] Further preferably, during the interval time T2, the washing drum rotates around the shaft at a set speed V2.

[0034] Further, in each feeding unit, the feeding amount of the additive is not greater than the maximum set amount M.

[0035] Further, when step S3 is performed, the stirring motor in the water supply channel drives the stirring impeller to rotate, and stirs the mixed liquid of the water and the additive flowing through, to improve the mixing uniformity of the mixed liquid.

[0036] Further, when steps S2 to S4 are performed, the mixed liquid is sprayed from the drum port of the washing drum into the washing drum, and the washing drum rotates at a set speed V1;

[0037] Preferably, when step S3 is performed, the washing drum rotates at a first set speed V11; when step S4 is performed, the washing drum rotates at a second set speed V12; and the V12 is greater than or equal to V11.

[0038] Further preferably, before the step S1, when the first set time t1 for water to flow into the water supply channel, the washing drum rotates at a set speed V2, which is greater than V11.

[0039] The application also provides a washing machine using the above additive dispensing method, comprising an additive dispensing device; the additive dispensing device is provided with a water supply channel for water flow and a dispensing structure for dispensing additives into the water supply channel; the outlet of the water supply channel is connected with a nozzle, which is arranged towards the washing drum of the washing machine, for spraying the mixture of additives and water into the washing drum.

[0040] Further, the water supply channel is provided with a turbulence structure for forming a vortex flow in the water supply channel to mix the dispensed additives with the water.

[0041] After the above technical solution, the application has the following beneficial effects compared with the prior art:

[0042] Through the above control method, the additive mixture is directly and uniformly sprayed onto the clothes in the washing drum, so that the clothes to be washed are directly sprayed with the mixture, which not only reduces the water consumption in the washing process, but also uniformly distributes the additives on the clothes, improves the use efficiency of the additives, and reduces the loss of the additives.

[0043] Meanwhile, the application has simple structure, remarkable effect, and is suitable for popularization and use.

[0044] The specific embodiments of the application will be further described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS

[0045] The accompanying drawings, which are part of the present application, serve to provide a further understanding of the present application, and the illustrative 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 accompanying 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:

[0046] Figures 1 to 3 is a structure schematic view of the washing machine from different perspectives in the embodiments of the application;

[0047] Figure 4 is a structure schematic view of the washing machine after the first part of the upper cover is removed in the embodiments of the application; Figure 3

[0048] Figure 5 is a structure schematic view of the washing machine after the first part of the upper cover is removed in the embodiments of the application;

[0049] Figure 6 ​is a schematic view of a top structure of a washing machine after a first part of an upper cover is removed in an embodiment of the present application;

[0050] Figure 7 and Figure 8 is a schematic view of a structure of a washing machine after an explosion at an additive dispensing device in an embodiment of the present application;

[0051] Figure 9 is a schematic view of a top structure of an additive dispensing device after a first part of an upper cover is removed in an embodiment of the present application;

[0052] Figure 10 is a control logic diagram of an additive dispensing method in an embodiment of the present application;

[0053] Figure 11 is a control logic diagram of additive dispensing metering in an embodiment of the present application.

[0054] Main elements in the figure are explained as follows:

[0055] 100, dispensing device; 200, tub; 300, washing drum; 400, window pad; 500, nozzle; 600, conduit; 700, spoiler structure; 1, water supply channel; 2, shell; 3, upper cover; 31, first part; 32, second part; 4, liquid storage cavity; 5, liquid storage box; 6, pump; 7, communicating vessel; 8, liquid pumping flow channel; 11, outlet; 12, inlet; 13, liquid suction port; 15, impeller; 16, mixing part; 17, central shaft; 18, fan blade; 81, inlet; 82, outlet.

[0056] It should be noted that the drawings and the written description are not intended to limit the scope of the present application in any way, but to illustrate the concept of the present application to those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0057] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments will be described clearly and completely below with reference to the drawings of the embodiments of the present application. The following embodiments are used to illustrate the present application, but not to limit the scope of the present application.

[0058] In the description of the present application, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "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 present application and simplifying the description, and therefore cannot be understood as indicating or implying 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 limiting the present application.

[0059] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be 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.

[0060] As shown in Figures 1 to 9 The embodiment of the present application also introduces a washing machine, which comprises a water containing drum 200 for containing water, a rotatable washing drum 300 for containing a load to be treated is installed in the water containing drum 200, and an additive feeding device 100 for directly feeding additives into the washing drum 300. Through the above arrangement, the washing machine can realize the use effect of directly feeding additives into the washing drum 300 and directly spraying the added additives onto the load to be treated in the washing drum 300, thereby achieving a significant technical progress in improving the utilization rate of additives.

[0061] As shown in Figures 1 to 9 The additive feeding device 100 described in the embodiment of the present application comprises:

[0062] A water supply waterway 1 for supplying water flowing into the additive feeding device 100;

[0063] A feeding structure for feeding additives into the water supply waterway 1;

[0064] A nozzle 500, the outlet 11 of the water supply waterway 1 is connected with the nozzle 500, and the nozzle 500 is arranged towards the washing drum 300 of the washing machine. When the additives are fed, a small amount of water flows into the water supply waterway, so that the additive solution formed by mixing the additives with the small amount of water in the water supply waterway 1 can be directly sprayed onto the load to be treated in the washing drum 300 through the nozzle 500, thereby significantly improving the utilization rate of the added additives.

[0065] Through the above device, the additives are directly fed out through the waterway arranged on the feeding device 100, which avoids the flow of additives through the water box, not only shortens the flow path of the additives, but also reduces the amount of flushing water required for feeding the additives, greatly improving the utilization rate of the additives.

[0066] As shown in Figures 1 to 9As shown, in the embodiment of the present application, the water supply channel 1 is integrated on the shell 2 of the additive dispensing device 100, the outlet 11 of the water supply channel 1 is arranged on the outer side of the shell 2, the nozzle 500 is arranged outside the shell 2, and the outlet 11 of the water supply channel 1 is connected to the nozzle 500 through the conduit 600. By integrating the water supply channel 1 on the shell 2 of the additive dispensing device 100, the outlet 11 of the water supply channel 1 is directly connected to the nozzle 500, so that the additive and water extracted through the water supply channel 1 are jointly sprayed out, thereby achieving the purpose that the additive dispensing device 100 directly sprays out through the nozzle 500 without passing through the water box part of the dispensing device 100.

[0067] In the embodiment of the present application, an additive dispensing method of a washing machine is introduced. After the water flow and the dispensed additive are mixed in the water supply channel, the mixed liquid is directly sprayed into the rotating washing drum.

[0068] Through the above control method, the additive mixed liquid is directly and uniformly sprayed onto the clothes in the washing drum, so that the clothes to be washed are directly sprayed wet by the mixed liquid, which not only reduces the water consumption in the washing process, but also uniformly distributes the additive on the clothes, thereby improving the use efficiency of the additive and reducing the loss of the additive.

[0069] Embodiment one

[0070] In the embodiment of the present application, an additive dispensing method of a washing machine is introduced. After the water flow and the dispensed additive are mixed in the water supply channel, the mixed liquid is directly sprayed into the rotating washing drum.

[0071] As shown in the figure, the specific steps of the additive dispensing process are as follows, Figure 10

[0072] Step S1, in a set time t, the dispensing structure dispenses the additive into the water supply channel until the dispensing amount reaches the preset amount;

[0073] Step S2, open the control valve of the water inlet of the water supply channel, and water is supplied into the water supply channel;

[0074] Step S3, in a second set time t2, water is supplied into the water supply channel at a second set water pressure p2, the water and the additive are mixed in the water supply channel to form a mixed liquid containing the additive;

[0075] Step S4, adjust the opening of the control valve and / or adjust the water flow of the water supply channel, and water is supplied at a third set water pressure p3 in a third set time t3, the mixed liquid flows out of the water outlet of the water supply channel and is directly sprayed into the washing drum through the nozzle; the washing drum is synchronously rotated around the shaft, so that the mixed liquid is uniformly sprayed onto the clothes in the washing drum.

[0076] ​Through the above control method, the additive mixed solution is directly and uniformly sprayed on the clothes in the washing drum, so that the clothes to be washed are directly sprayed with the mixed solution, thereby reducing the water consumption in the washing process, and the additive is directly and uniformly distributed on the clothes, thereby improving the use efficiency of the additive and reducing the loss of the additive.

[0077] In the embodiment, p3 is greater than p2, and t3 is greater than t2. Thus, during the additive feeding process, the water inlet pressure of the water supply channel is first reduced, so that the residence time of the additive in the water supply channel is slowed down, thereby promoting the additive to be fully mixed with the water inlet; then, after the additive is mixed, the water inlet with a larger pressure is supplied to the water supply channel, so that the mixed solution is sprayed to the washing drum with a large coverage range driven by the high-pressure water inlet, thereby increasing the coverage area of the additive in the washing drum and further improving the mixing uniformity of the clothes and the additive.

[0078] In the embodiment, before step S1 is performed, water is supplied to the water supply channel at a first set water pressure p1 for a first set time t1, and the water inlet in the water supply channel is flushed. p1 is greater than p2, and t1 is greater than t2. Through the above setting, the water inlet with a larger water pressure is supplied to the water supply channel before the additive is fed, so that the additive remaining in the water supply channel is flushed away to reduce the hindrance to the mixing of the fed additive.

[0079] In the embodiment, when step S4 is performed, the mixed solution is sprayed from the washing drum opening to the washing drum, and the washing drum rotates at a set speed V1.

[0080] In the embodiment, during the execution of steps S2 to S4, the washing drum rotates around the shaft at a set speed to agitate the clothes in the washing drum, so that the additive mixed solution is uniformly sprayed to each part of the clothes in the drum.

[0081] As shown in Figure 10 the specific process of the rotation of the washing drum during the additive feeding process is as follows:

[0082] When step S3 is performed for a second set time period t2, the washing drum rotates at a set speed V11;

[0083] When step S4 is performed for a third set time period t3, the washing drum rotates at a set speed V12;

[0084] Before step S1 is performed, when the first set time t1 for which water is supplied to the water supply channel, the washing drum rotates at a set speed V2;

[0085] V12 is greater than or equal to V11, and V2 is greater than V11.

[0086] Embodiment Two

[0087] The embodiment is based on the above-mentioned embodiment one and has the following technical features:

[0088] In the execution of steps S2 to S4 of the above-mentioned embodiment one, the water flow flowing in the water supply channel is alternately operated in the following steps:

[0089] Step S121, in the first set time period t21, the control valve of the water inlet of the water supply channel is closed, and the water inlet flow no longer flows in the water supply channel;

[0090] Step S122, in the second set time period t22, the control valve of the water inlet of the water supply channel is opened, and the water inlet flow with the second set water pressure p2 flows in the water supply channel.

[0091] By controlling the opening and closing of the water supply channel at intervals during the additive dispensing process, the additive is mixed with the interval water flow flowing in the water supply channel, the residence time of the additive in the water supply channel is further prolonged, the mixing uniformity of the additive and the water inlet flow in the water supply channel is improved, and the mixing uniformity of the added additive and the water inlet is effectively improved.

[0092] In the embodiment, when steps S3 and S4 are executed, the ratio of t21 to t22 is different, so as to change the opening and closing time of the control valve of the water inlet of the water supply channel, and then realize the effect of adjusting the water inlet water pressure of the water supply channel. Preferably, the ratio of t21 to t22 when step S3 is executed is n1, and the ratio of t21 to t22 when step S4 is executed is n2, and n1 is greater than n2.

[0093] Embodiment three

[0094] The embodiment is based on the above-mentioned embodiments one and two and has the following technical features:

[0095] In the embodiment, the additive dispensing process is divided into multiple dispensing units, and each dispensing unit is executed in turn according to the above-mentioned steps S1 to S4.

[0096] In the embodiment, the interval time between each adjacent dispensing unit is T2, and the total time of each dispensing unit executing the above-mentioned steps S1 to S4 is T1, so that the additive is dispensed step by step, so that the clothes in the washing drum are in different states when each dispensing unit is executed, and then the additive mixed solution and each part of the clothes in the washing drum are uniformly contacted. Preferably, T2 is not less than T1, so that sufficient interval time is maintained between each dispensing unit to prevent the occurrence of dispensing interference.

[0097] In the embodiment, during the interval time t2, the washing drum still rotates around the shaft at a set speed V2 to agitate the clothes in the washing drum, thereby ensuring the uniform distribution of the clothes in the washing drum and promoting the uniformity of the contact between the additive and the clothes.

[0098] In the embodiment, the additive is added in each dosing unit in an amount not greater than the maximum set amount M; preferably, the additive is added in each dosing unit in an amount that can be set to be equal or different.

[0099] For example, as shown in Figure 11 the specific way of measuring the dosing amount in the additive dosing process is as follows:

[0100] Step S101, before the operation program of the washing machine, the total additive amount to be dosed is obtained;

[0101] Step S102, one dosing unit is executed according to the above steps S1 to S4;

[0102] Step S103, when step S1 of the dosing unit is executed, it is judged in real time whether the cumulative additive amount reaches the total additive amount, if yes, the dosing is stopped; if no, the dosing is continued;

[0103] Step S104, when step S1 of the dosing unit is executed, it is judged in real time whether the additive dosing amount of the present dosing unit reaches the maximum set amount M, if yes, the dosing is stopped; if no, the dosing is continued;

[0104] Step S105, after the present dosing unit is finished, it is judged whether the cumulative additive amount reaches the total additive amount, if yes, the dosing is completed; if no, after a set interval time t is elapsed, step S102 is executed again to execute one dosing unit again.

[0105] Embodiment Four

[0106] As shown in Figures 1 to 8 In the embodiment, the water supply channel 1 of the additive dosing device is provided with a turbulence structure 700 for forming vortex flow in the water supply channel 1 to mix the dosed additive with the water; the nozzle 500 is connected with the outlet of the water supply channel 1 for dosing the mixed additive and water.

[0107] By providing the turbulence structure in the water supply channel, the mixed liquid of the additive and water in the water supply channel will form vortex flow when flowing through the turbulence structure to agitate the additive and water to mix, thereby achieving significant technical progress in improving the mixing uniformity of the additive solution flowed out of the water supply channel of the additive dosing device.

[0108] As shown in Figure 9As shown, in this embodiment, the turbulence structure 700 includes an impeller 115 rotatable around a central axis in the water supply path 1. The central axis 17 of the impeller 15 is perpendicular to the flow direction of the additive-water mixture in the water supply path 1. In this embodiment, the impeller 15 includes a central axis 17, at least one end of which is rotatably connected to the water supply path 1. Multiple fan blades 18 are arranged at intervals around the outer periphery of the central axis 17. Each fan blade 18 extends along different radial directions of the central axis 17 and is symmetrically arranged relative to the central axis 17. The extension length of the fan blades 18 along the radial direction of the central axis 17 is less than the distance between the central axis 17 and the inner wall of the water supply path 1.

[0109] In this embodiment, the central shaft of the impeller 15 is directly or indirectly connected to a drive motor via a transmission structure. The drive motor is used to drive the impeller to rotate around the central shaft, so that the impeller is driven by the drive motor to rotate actively.

[0110] During the additive addition process, when step S3 as described in the above embodiment is executed, the stirring motor in the water supply circuit drives the stirring impeller to rotate, stirring the mixture of the incoming water and the additive, thereby improving the uniformity of the mixture.

[0111] Of course, in this embodiment, the turbulence structure 700 can also be set as any other existing structure or combination thereof that can agitate the water flow in the water channel, such as: collision ribs, turbulence ribs, flow diversion ribs, etc. protruding in the water channel.

[0112] like Figure 9 As shown, in this embodiment, the water supply path 1 of the additive dispensing device is provided with a suction port 13 connected to the dispensing structure for the additive to flow in. The turbulence structure 700 is provided in the water supply path 1 downstream of the suction port 13, so that the turbulence structure 700 acts on the mixture of additive and water, thereby achieving the effect of improving the uniformity of additive and water in the mixture sprayed by the additive dispensing device.

[0113] like Figure 9 As shown, in this embodiment, the suction port 13 is located close to the inlet 12 of the water supply channel 1, so that the mixture of additive and water can flow through most of the water supply channel 1, so as to effectively utilize the length of the water supply channel 1 to mix the mixture and thus effectively improve the mixing uniformity.

[0114] like Figure 9 As shown, in this embodiment, a mixing section 16 with an increased cross-sectional area is provided in the middle of the water supply path 1, and a turbulence-inducing structure 700 is disposed within the mixing section 16. By providing a mixing section with an increased cross-sectional area within the water supply path, the flow rate of the mixed liquid flowing through the mixing section is slowed down, the contact time between the mixed liquid and the turbulence-inducing structure is prolonged, thereby improving the mixing effect of the turbulence-inducing structure on the mixed liquid.

[0115] As Figure 9 shown in the embodiment, the mixing portion 16 is a channel with gradually increasing cross-sectional area from both ends to the middle portion, and at least part of the turbulence structure 700 is arranged at the largest cross-sectional area of the mixing portion 16 to further improve the mixing effect. Preferably, the openings of both ends of the mixing portion 16 are oriented in different directions to further slow down the flow rate of the water flowing through the mixing portion and improve the mixing effect of the additive and the water.

[0116] As Figure 9 shown in the embodiment, the turbulence structure 700 is arranged at the axis of the mixing portion 16 or at the middle portion close to the axis, and is spaced apart from the left and right side walls of the mixing portion 16 to improve the coverage of the turbulence structure 700 on the mixed liquid flowing through the mixing portion, thereby improving the uniformity of mixing.

[0117] Embodiment Five

[0118] The embodiment based on the above-mentioned embodiments further has the following technical features:

[0119] As Figure 7 and Figure 8 shown in the embodiment, in the embodiment, the top of the shell 2 of the additive feeding device 100 is an upper cover 3, the water supply channel 1 is arranged inside the upper cover 3, the outlet 11 of the water supply channel 1 is exposed to the outer periphery side of the upper cover 3, the inlet end of the conduit 600 is in communication with the outlet 11 of the water supply channel 1, and the outlet end of the conduit 600 is in communication with the nozzle 500 arranged outside the shell 2; preferably, the upper cover 3 includes a first part 31 and a second part 32 that are mutually engaged, the first part 31 and the second part 32 are relatively spliced, and the water supply channel 1 is formed at the joint surface. Further preferably, the first part 31 and the second part 32 of the upper cover 3 are connected by a welding process to form a closed and pressure-bearing water channel structure inside.

[0120] Thus, the water supply channel 1 of the additive feeding device 100 is integrated on the upper cover 3, so that the water and the additive of the feeding device 100 are directly fed through the water supply channel 1 inside the upper cover 3, thereby realizing the effect that the additive directly flows out of the outlet 11 on the outer periphery side of the upper cover 3 and is fed.

[0121] In the embodiment, the feeding structure includes a liquid storage cavity 4 for storing the additive, and the liquid storage cavity 4 is in communication with the water supply channel 1; the feeding device 100 further has a power unit for pumping the additive in the liquid storage cavity 4 into the water supply channel.

[0122] As Figures 1 to 8As shown, in the embodiment, the power unit is a pump 6 arranged on the liquid suction flow channel 8 connected with the water supply channel 1, which provides driving force for the liquid in the liquid suction flow channel 8 to flow from the liquid storage cavity 4 to the water supply channel 1. In the embodiment, the liquid suction flow channel 8 is also arranged inside the upper cover 3, the inlet 81 of the liquid suction flow channel 8 is connected with the liquid storage cavity 4 through the communicating device 7, the outlet 82 of the liquid suction flow channel 8 is connected with the inlet of the pump 6, and the outlet of the pump 6 is connected with the liquid suction port 13 arranged on the water supply channel 1. By controlling the start and stop of the pump 6, the additive in the liquid storage cavity 4 can be pumped to the water supply channel 1 for dispensing.

[0123] In the embodiment, the power unit can also be provided with other existing structures, for example, the power unit is a suction pump, the suction port of the suction pump is connected with the water supply channel 1 to form negative pressure in the water supply channel 1, and the additive in the liquid storage cavity 4 is sucked to the water supply channel 1 through the liquid suction flow channel 8.

[0124] And / or, the power unit can also be a Venturi tube arranged on the water supply channel 1, the Venturi tube is provided with a negative pressure area with sudden change of pipe diameter, the negative pressure area can form negative pressure by the flow of water, the negative pressure area of the Venturi tube is provided with a suction port, and the suction port is connected with the liquid storage cavity 4 through the liquid suction flow channel 8 (not marked in the drawing).

[0125] In the embodiment, the additive dispensing device 100 includes a plurality of liquid storage cavities 4, each of which can contain different types of additives, such as detergents, softeners, fragrances, disinfectants, etc. The dispensing device 100 is provided with a control device for controlling the connection of each liquid storage cavity 4 with the water supply channel 1 to dispense one or a combination of types of additives into the water supply channel 1.

[0126] In the embodiment, the control device can be provided with any existing structure that can achieve the above functions, for example:

[0127] In the embodiment, each liquid storage cavity 4 can be connected with the water supply channel 1 through a flow channel provided with a control valve, so as to achieve the effect of separate or combined on-off control of each flow channel by controlling the opening and closing of each control valve, thereby achieving the purpose of independent dispensing of any type of additive or simultaneous dispensing of multiple types of additives.

[0128] Each liquid storage cavity 4 can also be connected with different inlets of the same reversing valve one by one, the outlet of the reversing valve is connected with the water supply channel 1, a rotatable valve core is arranged in the reversing valve for controlling the connection of any or a combination of inlets with the outlet, which can also achieve the purpose of independent dispensing of any type of additive or simultaneous dispensing of multiple types of additives (not marked in the drawing).

[0129] For example, Figures 1 to 8As shown, in this embodiment, the outer shell 2 of the dispensing device 100 is provided with a liquid storage box 5. The liquid storage box 5 is installed in the outer shell 2 of the additive dispensing device 100 by being able to be pulled outward. The liquid storage box 5 is provided with at least one liquid storage chamber 4 for storing additives. Each liquid storage chamber 4 on the liquid storage box 5 is connected to the water supply line 1 via a connector 7. The connector 7 is provided with a control device for controlling the selective or combined connection of each liquid storage chamber 4 to the water supply line 1.

[0130] In this embodiment, the inlet 12 of the water supply path 1 is located on the outer wall of the outer casing 2. The inlet 12 of the water supply path 1 is connected to the water supply source, so that water can flow into the water supply path 1.

[0131] In this embodiment, the additive dispensing device 100 is installed on the washing machine, and the water source for the additive dispensing device is the washing machine's water inlet pipe. The inlet 12 of the water supply line 1 is connected to the washing machine's water inlet pipe, so that washing water can flow into the water supply line 1 through the inlet 12. The outer casing 2 of the additive dispensing device 100 is provided with a water inlet connector, and the two ends of the water inlet connector are respectively connected to the inlet 12 of the water supply line 1 and the washing machine's water inlet pipe; more preferably, a control valve for controlling the on / off state of the water supply line is installed at the water inlet connector.

[0132] This invention, by incorporating the aforementioned additive dispensing device 100 into a washing machine, allows the additive to flow directly from the water supply channel 1 to the nozzle 500 and then directly into the washing drum 300. This bypasses the water tank and the external water container 200 of the washing drum 300, allowing the additive to flow directly into the washing drum 300 and be sprayed onto the load to be treated. This achieves the goal of directly spraying the additive solution onto the load inside the washing drum 300. Furthermore, this design allows the washing machine equipped with the additive dispensing device 100 to directly spray the additive solution formed by mixing the additive with a small amount of incoming water in the water supply channel 1 onto the load inside the washing drum 300, thereby significantly improving the utilization rate of the dispensed additive.

[0133] like Figures 6 to 8 As shown, in this embodiment, a suction port 13 is provided in the middle of the water supply channel 1. The suction port 13 is connected to the dispensing structure, so that the additive is drawn into the water supply channel 1 from the suction port 13. Preferably, the suction port 13 is connected to the outlet of the pump 6, the inlet of the pump 6 is connected to the outlet 82 of the liquid extraction channel 8, the inlet 81 of the liquid extraction channel 8 is connected to the outlet of the communicating vessel 7, and the multiple inlets of the communicating vessel 7 are connected one-to-one with each of the liquid storage chambers 4, so as to realize that the additive in the liquid storage chamber 4 is drawn into the water supply channel 1 through the above-mentioned channels under the driving action of the pump 6.

[0134] like Figure 6As shown, in the embodiment, the part of the water supply channel 1 downstream of the liquid suction port 13 can mix the additive flowing into the water supply channel 1 with the water to form an additive solution. Preferably, the liquid suction port 13 is arranged close to the inlet 12 of the water supply channel 1 to extend the length of the water supply channel 1 downstream of the liquid suction port 13 as much as possible, so that the space of the downstream part of the water supply channel 1 where the additive and the water are mixed together is increased, and the uniformity of the mixing between the additive and the water is improved.

[0135] In the embodiment, the nozzle 500 can be arranged on the housing of the washing machine, and / or the door body, and / or the water tub 200, and / or the window pad 400, and the spray outlet of the nozzle 500 is arranged towards the inside of the washing drum 300, so that the additive sprayed by the nozzle 500 can be directly sprayed into the inside of the washing drum 300.

[0136] Preferably, in the embodiment, the nozzle 500 is arranged as follows:

[0137] As shown, Figures 1 to 8 the window pad 400 is arranged on the tub opening of the water tub 200, the window pad 400 is in a tub shape, one end of the tub-shaped window pad 400 is connected to the tub opening of the water tub 200, and the other end is connected to the housing of the washing machine to form a channel, the tub opening of the washing drum 300 is connected to one end of the channel, the housing of the washing machine is provided with a clothes feeding opening corresponding to the other end of the channel, the housing of the washing machine is provided with a door body which can open and close the clothes feeding opening, and the inside of the water tub 200 forms a closed space when the door body is closed. There is a gap between the door body and the window pad 400, and the gap is directly connected to the inside of the washing drum 300 through the tub opening of the washing drum 300. The nozzle 500 is arranged on the top of the window pad 400, the nozzle 500 penetrates through the window pad 400, the part of the nozzle 500 on the inner circumferential side of the window pad 400 has a spray outlet, the part of the nozzle 500 on the outer circumferential side of the window pad 400 has an inlet, the inside of the nozzle 500 has a flow channel, and the two ends of the flow channel are connected to the inlet and the spray outlet respectively. The spray outlet is arranged towards the direction of the tub opening of the washing drum 300, so that the additive solution sprayed from the nozzle 500 can be directly sprayed into the washing drum 300, to realize the direct spraying of the additive to the load in the washing drum 300, and to improve the efficiency of the additive feeding.

[0138] In the embodiment, the nozzle 500 can be any existing spray structure, and the spray outlet can be arranged as a plurality of spray holes spaced apart, or as a single opening.

[0139] In the embodiment, the washing machine is provided with a conduit 600 which is independently arranged outside the shell of the additive feeding device 100 and outside the water containing barrel 200. The two ends of the conduit 600 are respectively connected with the inlet of the nozzle 500 and the outlet 11 of the water supply channel 1, so that the additive solution supplied by the water supply channel 1 can be directly drained to the nozzle 500 through the conduit 600, thereby realizing the effect of directly spraying and feeding into the washing barrel 300 of the washing machine. Preferably, the conduit 600 is made of rubber or other materials, which can be bent and deformed.

[0140] The above description is only the preferred embodiment of the present application, and does not limit the present application in any form. Although the present application has been disclosed as above with the preferred embodiment, it is not intended to limit the present application. Any skilled person in the art can make some changes or modifications to the above-mentioned technical content without departing from the technical solution of the present application, and any simple modification, equivalent change and modification of the above-mentioned embodiments based on the technical essence of the present application are still within the scope of the present application.

Claims

1. A method of dosing an additive for a laundry machine, characterized by: After the water flow and the added agent mixed in the water supply channel inside the top of the shell of the added agent feeding device; The outlet of the water supply channel is exposed to the outer circumferential side of the top cover and is connected to a nozzle through a guide pipe arranged independently outside the shell, so that the mixed liquid is directly sprayed into the rotating washing drum, and the mixed liquid of the added agent and the water extracted through the water supply channel is directly sprayed outward from the nozzle to the washing drum without passing through the water box part inside the added agent feeding device shell. The specific steps of the added agent feeding process are as follows, Step S1: feeding the added agent into the water supply channel until the feeding amount reaches the preset amount; Step S2: feeding water into the water supply channel; Step S3: mixing the water and the added agent in the water supply channel; Step S4: directly spraying the mixed liquid into the washing drum, and synchronously rotating the washing drum around the shaft.

2. The method of claim 1, wherein the detergent is supplied to the washing machine in the form of a detergent tablet. When step S2 is performed, the water flow in the water supply channel is as follows, Step S21: first feeding water into the water supply channel for a second set time t2, mixing the added agent in the water supply channel by using the water flow to perform step S3, and forming an added agent mixed liquid; Step S22: again feeding water into the water supply channel for a third set time t3, and flushing out the added agent mixed liquid in the water supply channel.

3. The added agent feeding method of a washing machine according to claim 2, characterized in that, Before step S1 is performed, water is fed into the water supply channel for a first set time t1 to flush the water supply channel.

4. The method of claim 2, wherein the detergent is supplied in a form of a detergent tablet. In the above added agent feeding process, the specific form of the water flow in the water supply channel is as follows: Step S11: feeding water at a first set water pressure p1 for a first set time t1; Step S12: feeding water at a second set water pressure p2 for a second set time t2; Step S13: feeding water at a third set water pressure p3 for a third set time t3; p1 is greater than p2, p3 is greater than p2; t1 is greater than t2, t3 is greater than t2.

5. The added agent feeding method of a washing machine according to any one of claims 1 to 4, characterized in that, When step S2 is performed, the water flow in the water supply channel is alternately operated in the following steps, Step S121: closing the water inlet of the water supply channel for a first set time period t21, and no water flow passes through the water supply channel; Step S122: opening the water inlet of the water supply channel for a second set time period t22, and water flow passes through the water supply channel.

6. A method of dispensing an additive for a laundry machine according to any one of claims 1 to 4, characterized in that, The added agent feeding process is divided into multiple feeding units, and each feeding unit is sequentially performed according to the above steps S1 to S4.

7. The added agent feeding method of a washing machine according to claim 6, characterized in that, The interval time between each adjacent feeding unit is T2, the total time of performing the above steps S1 to S4 in each feeding unit is T1, and T2 is not less than T1.

8. The added agent feeding method of a washing machine according to claim 7, characterized in that, During the interval time T2, the washing drum rotates around the shaft at a set speed V2.

9. The method of claim 5, wherein the detergent is supplied in a form of a detergent tablet. In each feeding unit, the feeding amount of the added agent is not greater than the maximum set amount M.

10. A method of dispensing an additive for a laundry machine according to any one of claims 1 to 4, characterized in that, In step S3, the stirring motor drives the stirring impeller to rotate, and the mixture of the water and the additive is stirred.

11. A method of dispensing an additive for a laundry machine according to any one of claims 1 to 4, characterized in that, In steps S2-S4, the mixture is sprayed from the washing cylinder opening into the washing cylinder, and the washing cylinder rotates at a set speed V1.

12. The additive dispensing method for a washing machine according to claim 11, wherein In step S3, the washing cylinder rotates at a first set speed V11, and in step S4, the washing cylinder rotates at a second set speed V12, wherein V12 is greater than or equal to V11.

13. The additive dispensing method for a washing machine according to claim 12, wherein Before step S1, the washing cylinder rotates at a set speed V2 when water is supplied to the water supply channel for a first set time t1, wherein V2 is greater than V11.

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