Feeding device and washing machine

Abstract

The invention discloses a putting device, which is characterized by comprising a putting water path for the circulation of inlet water flow; the liquid storage cavity is used for storing an additive and is communicated with the feeding water path through a suction water path of the feeding device; the driving cavity is connected in series to the throwing water path and is provided with a driving impeller which is driven to rotate by flowing inlet water flow; the suction cavity is connected to the suction water way in series, a centrifugal impeller is arranged in the suction cavity, and the centrifugal impeller is in transmission connection with the driving impeller. The device has the beneficial effects that the driving impeller is driven to rotate through water inlet, the centrifugal impeller in transmission connection is driven to rotate, and additives in the suction cavity are pumped out through centrifugal force; meanwhile, the suction cavity where the centrifugal impeller is located is filled with the additive all the time, so that when inflow water just begins to circulate, the suction cavity immediately puts the additive into the downstream suction water path, the inflow water which firstly enters the putting water path can be mixed with the additive in an equal proportion, and therefore the washing machine can control the putting amount of the additive more accurately.

Description

Technical Field

[0001] The invention belongs to the field of clothing cleaning, and in particular relates to a feeding device and a washing machine. Background Art

[0002] The clothing treatment device is a frequently used household appliance. The clothing treatment device is provided with a dispensing device, which mainly includes a water box connected to the water inlet pipeline of the clothing treatment device and a dispenser box contained in the water box. The dispenser box is usually arranged to be retractable in the water box, so that the user can pull out the dispenser box from the water box and add detergent, and / or softener, and / or disinfectant and other additives into the box. After the clothing treatment device starts to take in water, the additives in the liquid storage box are sucked by the liquid pumping device and dispensed into the water path of the water box. The water in the water inlet pipeline can first enter the water supply water path of the water box and mix with the additives to form a mixed liquid, and then be added to the interior of the clothing treatment device to wash the clothes.

[0003] In the prior art, an electrically driven pump assembly is usually used to operate the impeller to suck the additive when powered on, or a venturi tube is used to suck the additive through the negative pressure generated by the incoming water at the throat. For a point-driven pump assembly, a motor needs to be added to the delivery device, and the wires need to be extended into the delivery device. At the same time, the chamber accommodating the motor and the pump assembly needs to be waterproofed, resulting in a complex internal structure of the delivery device and high cost. In addition, although the switch of the electrically driven pump assembly and the water inlet valve can be turned on at the same time, due to the influence of factors such as the different lengths in the pipeline and whether there is liquid in the pipeline in the initial state, it is impossible to ensure that the additive and the incoming water are mixed in equal proportions, resulting in unstable cleaning effect on clothes.

[0004] Although the application of the Venturi tube solves the dependence of the dispensing device on components such as motors, when the dispensing device is not filled with water, there is only air in the throat of the Venturi tube and the suction tube connecting the throat and the liquid storage chamber or they are not completely filled with additives. When water is taken in, the negative pressure generated by the water first entering the Venturi tube is only used to add additives into the dispensing pipe after the air in the above-mentioned pipe is discharged, resulting in the washing machine's inaccurate control over the amount of additives dispensed, affecting the washing effect.

[0005] In view of this, the present invention is proposed. Summary of the invention

[0006] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art and provide a dispensing device and a washing machine. The impeller is driven to rotate by water inlet, and the centrifugal impeller connected thereto is driven to rotate, so that the additive in the suction chamber is extracted by centrifugal force, replacing the scheme of driving the impeller to rotate by a motor, thereby solving the problem of the complex internal structure of the dispensing device caused by the provision of components such as a motor; at the same time, the interior of the suction chamber where the centrifugal impeller is located is always full of additives, so that when the incoming water just starts to flow, the centrifugal impeller rotates synchronously, causing the suction chamber to immediately dispense additives into the downstream suction waterway, so that the incoming water that first enters the dispensing waterway can also be mixed with the additives in equal proportions, thereby solving the problem of inaccurate dispensing amount control of the existing dispensing device.

[0007] In order to solve the above technical problems, the basic concept of the technical solution adopted by the present invention is: a delivery device, including a delivery waterway for supplying water flow; a liquid storage chamber for storing additives, which is connected with the delivery waterway through the suction waterway of the delivery device; a driving chamber, which is connected in series to the delivery waterway and is provided with a driving impeller driven to rotate by the incoming water flow flowing through it; a suction chamber, which is connected in series to the suction waterway and is provided with a centrifugal impeller inside, and the centrifugal impeller is connected to the driving impeller in a transmission manner.

[0008] Furthermore, it also includes a delivery shell, which has a driving chamber and a suction chamber inside, and the driving chamber and the suction chamber are isolated by a partition wall; a transmission shaft passing through the partition wall is arranged in the delivery shell, and both ends of the transmission shaft are coaxially connected to the driving impeller and the suction impeller respectively.

[0009] Furthermore, the water outlet of the suction water channel is connected to the delivery water channel downstream of the driving chamber, and a one-way valve for unidirectional conduction is arranged on the suction water channel downstream of the suction chamber.

[0010] Furthermore, the diameter of the suction water channel is smaller than the diameter of the delivery water channel, and the axis of the suction water channel and the axis of the delivery water channel are staggered.

[0011] Furthermore, the extension direction of the suction water channel is perpendicular to the extension direction of the connected delivery water channel; the inner wall of one side of the suction water channel is flush with the inner wall of one side of the delivery water channel.

[0012] Furthermore, it also includes a water supply waterway, the water outlet of which is connected to the delivery waterway downstream of the driving chamber;

[0013] Preferably, the connection point between the injection waterway and the water supply waterway is located upstream of the connection point with the suction waterway.

[0014] Furthermore, a liquid inlet is provided on the suction chamber, and the liquid inlet coincides with the central axis of the centrifugal impeller.

[0015] Furthermore, the suction chamber is a cylindrical structure, and the centrifugal impeller is coaxially arranged with the columnar suction chamber; a liquid outlet is provided on one side of the columnar suction chamber, and the direction of the liquid outlet is arranged in the same direction as the rotation direction of the centrifugal impeller.

[0016] Furthermore, the centrifugal impeller is provided with centrifugal blades extending outward from the center, and the extending ends of the centrifugal blades are respectively in contact with the inner circumferential surface of the columnar suction cavity.

[0017] A washing machine comprises a washing chamber for providing a space for accommodating clothes; a feeding device as described above is adopted, and each water channel of the feeding device is respectively connected with the washing chamber.

[0018] After adopting the above technical scheme, the present invention has the following beneficial effects compared with the prior art: the impeller is driven to rotate by the water inlet, and the centrifugal impeller connected to the transmission is driven to rotate, and the additive in the suction chamber is extracted by centrifugal force, which replaces the motor driving the impeller to rotate, thereby reducing the complexity of the internal structure of the delivery device; at the same time, the suction chamber where the centrifugal impeller is located is always full of additives, so that when the water inlet just starts to flow, the centrifugal impeller rotates synchronously, so that the suction chamber immediately delivers additives to the downstream suction waterway, so that the water that first enters the delivery waterway can also be mixed with the additives in equal proportions, so that the washing machine can control the amount of additive delivery more accurately.

[0019] At the same time, the invention has a simple structure, significant effects and is suitable for popularization and use.

[0020] The specific implementation modes of the present invention are further described in detail below in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The accompanying drawings are part of the present invention and are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention, but do not constitute an improper limitation of the present invention. Obviously, the drawings described below are only some embodiments. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. In the accompanying drawings:

[0022] Figure 1 is a schematic structural diagram of the delivery device of the washing machine according to the embodiment of the present invention when water is being delivered to the delivery channel;

[0023] Figure 2 is a schematic cross-sectional view of the connection between the suction water channel and the delivery water channel of an embodiment of the present invention;

[0024] Figure 3 is a schematic structural diagram of a bottom-up cross-section of a certain position of a suction chamber according to an embodiment of the present invention;

[0025] Figure 4It is a schematic structural diagram of a top view of a section of a driving cavity at a certain position according to an embodiment of the present invention.

[0026] In the figure: 110, delivery water circuit; 111, first water inlet valve port; 120, suction water circuit; 121, one-way valve; 130, water supply water circuit; 131, second water inlet valve port; 200, delivery shell; 201, partition wall; 210, drive chamber; 211, drive impeller; 220, suction chamber; 221, liquid inlet; 222, liquid outlet; 223, centrifugal impeller; 230, transmission shaft; 300, liquid storage chamber; 400, washing chamber; 500, liquid level sensor.

[0027] It should be noted that these drawings and textual descriptions are not intended to limit the conceptual scope of the present invention in any way, but are intended to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention but are not used to limit the scope of the present invention.

[0029] In the description of the present invention, it should be noted that the directions or positional relationships indicated by terms such as “upper”, “lower”, “front”, “back”, “left”, “right”, “vertical”, “inside” and “outside” are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0030] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0031] like Figure 1-4As shown, in an embodiment of the present invention, a delivery device is introduced, including a delivery waterway 110 for supplying incoming water flow; a liquid storage chamber 300 for storing additives, which is connected to the delivery waterway 110 via a suction waterway 120 of the delivery device; a driving chamber 210, which is connected in series to the delivery waterway 110 and is provided with a driving impeller 211 driven to rotate by the incoming water flow flowing therethrough; a suction chamber 220, which is connected in series to the suction waterway 120 and is provided with a centrifugal impeller 223 inside, and the centrifugal impeller 223 is transmission-connected to the driving impeller 211.

[0032] Through the above arrangement, the impeller 211 is driven to rotate by the water inlet, and the centrifugal impeller 223 connected to the driving device is driven to rotate, and the additive in the suction chamber 220 is extracted by centrifugal force, which replaces the motor driving the impeller 211 to rotate, thereby reducing the complexity of the internal structure of the delivery device; at the same time, the suction chamber 220 where the centrifugal impeller 223 is located is always full of additives, so that when the water inlet just starts to flow, the centrifugal impeller 223 rotates synchronously with the water inlet, so that the suction chamber 220 immediately delivers additives to the downstream suction waterway 120, so that the water liquid that first enters the delivery waterway 110 can be mixed with the additive in equal proportions, so that the washing machine can control the amount of additive delivery more accurately.

[0033] In addition, compared with the Venturi tube, the ratio of additives and water inlet of the Venturi tube requires adjustment of the slope of the pipe wall at the throat, the diameter of the water inlet section and the diameter of the additive suction section. Each adjustment requires the Venturi tube to be re-molded, which is a very troublesome process.

[0034] In an embodiment of the present invention, the speed of adding additives can be adjusted by adjusting the diameter of the centrifugal impeller 223, thereby adjusting the concentration of additives entering the washing chamber 400: using a centrifugal impeller 223 with a larger diameter can increase the speed of adding additives, and the concentration of additives in the outlet water increases; using a centrifugal impeller with a smaller diameter can reduce the speed of adding additives, and the concentration of additives in the outlet water becomes lower; and during debugging, only the centrifugal impeller 223 needs to be replaced, which reduces the difficulty of developing the adding device.

[0035] In the embodiment of the present invention, the driving chamber 210 and the suction chamber 220 are independent chambers.

[0036] In an embodiment of the present invention, a delivery shell 200 is further included, in which a driving chamber 210 and a suction chamber 220 are provided, and the driving chamber 210 and the suction chamber 220 are isolated from each other by a partition wall 201; a transmission shaft 230 is provided in the delivery shell 200 and passes through the partition wall 201, and two ends of the transmission shaft 230 are coaxially connected to the driving impeller 211 and the suction impeller respectively.

[0037] In the embodiment of the present invention, the driving chamber 210 and the suction chamber 220 are respectively coaxially arranged with the transmission shaft 230 .

[0038] In an embodiment of the present invention, a bearing that passes through the partition wall 201 is provided on the partition wall 201, and the bearing is coaxially sleeved on the transmission shaft 230; the transmission shaft 230 is rotatably provided on the partition wall 201 through the bearing, and at the same time, the bearing can block the opening on the partition wall 201 for the transmission shaft 230 to pass through, so that the driving chamber 210 and the suction chamber 220 are isolated from each other.

[0039] In another embodiment of the present invention, it also includes two independent shells, the driving chamber 210 and the suction chamber 220 are respectively arranged in the two shells, the driving impeller 211 and the centrifugal impeller 223 are connected by the transmission shaft 230, and the driving chamber 210 and the suction chamber 220 are respectively coaxially arranged with the transmission shaft 230.

[0040] In the embodiment of the present invention, the water outlet of the suction waterway 120 is connected to the delivery waterway 110 downstream of the driving chamber 210 , and a one-way valve 121 for one-way conduction is provided on the suction waterway 120 downstream of the suction chamber 220 .

[0041] Through the above-mentioned arrangement, the additive in the suction waterway 120 is first mixed with the incoming water in the delivery waterway 110 to form a mixed liquid, and then continues to flow downstream through the delivery waterway 110; and, by providing a one-way valve 121 in the suction waterway 120, while ensuring that the additive can flow to the downstream of the suction waterway 120, the incoming water in the delivery waterway 110 is prevented from flowing into the suction chamber 220, thereby avoiding dilution of the additive in the suction chamber 220, resulting in the actual delivery amount of the additive being less than the expected delivery amount.

[0042] In the embodiment of the present invention, the diameter of the suction waterway 120 is smaller than the diameter of the delivery waterway 110 , and the axis of the suction waterway 120 and the axis of the delivery waterway 110 are staggered.

[0043] Through the above arrangement, the additive in the suction waterway 120 is biased toward one side of the axis of the delivery waterway 110 to enter the delivery waterway 110 and mix with the incoming water. Under the impact of the additive, the incoming water forms a rotating mixed liquid flowing downstream in the suction waterway 120, thereby achieving pre-mixing of the additive and the incoming water.

[0044] In an embodiment of the present invention, the extension direction of the suction waterway 120 is perpendicular to the extension direction of the connected delivery waterway 110; the inner wall of one side of the suction waterway 120 is flush with the inner wall of one side of the delivery waterway 110; the additive enters the delivery waterway 110 along the inner wall of the suction waterway 120, so that when the additive enters the delivery waterway 110, the swirl effect caused in the delivery waterway 110 is better, further improving the pre-mixing effect.

[0045] In the embodiment of the present invention, a water supply channel 130 is further included, and a water outlet of the water supply channel 130 is connected to the delivery water channel 110 downstream of the driving chamber 210 .

[0046] The injection water circuit 110 is used to supply water to the washing machine and also to provide power for the injection of additives. When water is injected into the injection water circuit 110, the additives are mixed with the water in a set ratio. Therefore, without modifying the specification parameters of components such as the impeller, the injection water circuit 110 can only output a mixed liquid with a fixed additive content. Such a setting is not suitable for all washing programs and clothes.

[0047] In view of the above technical problems, an embodiment of the present invention provides additive-free inlet water to the washing machine by additionally providing a water supply waterway 130 to dilute the mixed liquid provided by the delivery waterway 110 in the washing machine, so that the mixed liquid in the washing machine can adapt to more washing programs and clothes; in addition, by connecting the water supply waterway 130 with the delivery waterway 110, the inlet water flowing through the water supply waterway 130 and the delivery waterway 110 respectively enters the washing machine through the same water outlet, thereby reducing the water outlets of the waterway and simplifying the complexity of the delivery device.

[0048] In the embodiment of the present invention, the connection point between the injection waterway 110 and the water supply waterway 130 is located upstream of the connection point between the injection waterway 110 and the suction waterway 120 .

[0049] The mixed liquid flowing downstream of the connection point between the injection waterway 110 and the suction waterway 120 will produce residue in this section of the waterway, resulting in poor sanitation and reduced passing area in this section of the waterway.

[0050] In order to solve the above technical problems, an embodiment of the present invention arranges the outlet of the water supply circuit 130 upstream of the outlet of the suction circuit 120, and after the delivery of the delivery water circuit 110 is completed, water is introduced into the water supply circuit 130 to flush the delivery water circuit 110, thereby solving the problem of residual additives in the delivery water circuit 110.

[0051] In an embodiment of the present invention, the bend of the delivery waterway 110 downstream of the driving chamber 210 extends, and the water supply waterway 130 is connected downstream of the bend, and the flow direction is set in the same direction as the downstream of the bend of the delivery waterway 110, so that the flow between the water supply waterway 130 and the delivery waterway 110 is smoother.

[0052] In the embodiment of the present invention, the diameter of the water supply channel 130 is equal to the diameter of the injection water channel 110 .

[0053] In an embodiment of the present invention, a liquid inlet 221 is provided on the suction chamber 220, and the liquid inlet 221 coincides with the central axis of the centrifugal impeller 223; during the rotation of the centrifugal impeller 223, the additive between the centrifugal blades of the centrifugal impeller 223 is accelerated, and the rotation generates a centrifugal force to throw the additive outward from the suction chamber 220, so that a negative pressure is generated near the central axis of the centrifugal impeller 223; by setting the liquid inlet 221 at the axis position, the negative pressure area directly sucks the liquid storage chamber 300, thereby improving the suction effect.

[0054] In an embodiment of the present invention, the transmission shaft 230 extends into the suction chamber 220 through one side and is coaxially connected to the centrifugal impeller 223. The end of the transmission shaft 230 is spaced apart from the chamber wall on the other side of the suction chamber 220, and a liquid inlet 221 is provided on the other side opposite to the suction chamber 220. The transmission shaft 230 is spaced apart from the liquid inlet 221 of the suction chamber 220, and the additive flows into the interior of the suction chamber 220 through the spaced space, thereby ensuring the smoothness of the additive flow passage.

[0055] In an embodiment of the present invention, the diameter of the liquid inlet 221 is smaller than the diameter of the transmission shaft 230, so that the additive entering the suction chamber 220 first impacts the end of the transmission shaft 230, and then diffuses to the surroundings of the suction chamber 220, thereby buffering the additive entering the suction chamber 220 and avoiding uneven distribution of the additive in the suction chamber 220, resulting in unstable flow rate of the additive.

[0056] In an embodiment of the present invention, the suction chamber 220 is a cylindrical structure, and the centrifugal impeller 223 is coaxially arranged with the columnar suction chamber 220; a liquid outlet 222 is opened on one side of the columnar suction chamber 220, and the direction of the liquid outlet 222 is arranged in the same direction as the rotation direction of the centrifugal impeller 223; so that the additive leaving the suction chamber 220 through the centrifugal force can flow smoothly to the downstream suction waterway 120.

[0057] In the embodiment of the present invention, a side wall of the suction water channel 120 connected to the liquid outlet 222 is flush with the chamber wall of the suction chamber 220 .

[0058] In an embodiment of the present invention, the centrifugal impeller 223 is provided with centrifugal blades extending outward from the center, and the extended ends of each centrifugal blade are respectively in contact with the inner circumferential surface of the columnar suction chamber 220; thereby increasing the contact area with the additive, thereby increasing the acceleration effect on the additive in the suction chamber 220; and improving the delivery efficiency of the delivery device for the additive.

[0059] In an embodiment of the present invention, the delivery water paths 110 upstream and downstream of the driving chamber 210 are respectively located on the same axis, which is perpendicular to the axis of the driving impeller 211 and is staggered; so that the incoming water impacts one side of the driving impeller 211 to keep the rotation direction of the driving impeller 211 fixed, thereby making the centrifugal impeller 223 have a fixed rotation direction, so that the delivery device can operate stably.

[0060] In the embodiment of the present invention, a first water inlet valve port 111 and a second water inlet valve port 131 are respectively provided on the water inlets of the water delivery waterway 110 and the water supply waterway 130, and each water inlet valve port controls the opening and closing of the corresponding waterway.

[0061] In an embodiment of the present invention, the delivery device is provided with a water inlet valve, which is provided with a water inlet valve inlet, a first water inlet valve port 111 and a second water inlet valve port 131; the water inlet valve is arranged as a one-inlet and multiple-outlet water inlet valve to facilitate the connection of the delivery device.

[0062] In an embodiment of the present invention, the first water inlet valve port 111 and the second water inlet valve port 131 of the water inlet valve are respectively controlled by independent valve cores, so that the two outlets of the water inlet valve can be closed at the same time, thereby preventing the first water inlet valve port 111 or the second water inlet valve port 131 of the water inlet valve from mistakenly diverting the incoming water into the delivery device when the inlet of the water inlet valve is damaged.

[0063] In an embodiment of the present invention, a washing machine is also introduced, including a washing chamber 400 for providing a space for accommodating clothes; a placing device as described above is adopted, and each water channel of the placing device is respectively connected to the washing chamber 400.

[0064] In an embodiment of the present invention, the delivery device is located above the washing chamber 400, the delivery device is horizontally arranged, the delivery waterway 110 extends horizontally and is bent downward; preferably, the suction waterway 120 is connected to the downwardly bent portion of the delivery waterway 110.

[0065] In the embodiment of the present invention, the water supply channel 130 is located above the injection water channel 110 , the water supply channel 130 extends horizontally and bends downward, and the water outlet of the water supply channel 130 is connected to the downward bending part of the injection water channel 110 .

[0066] In the embodiment of the present invention, no flow meter is provided in the delivery device, and a liquid level sensor 500 is provided in the washing chamber 400 , and the liquid level in the washing chamber 400 is obtained through the liquid level sensor 500 .

[0067] In an embodiment of the present invention, a control method for a washing machine is also introduced, which uses the washing machine as described above; the washing program of the washing machine is provided with an automatic dispensing stage, and when the automatic dispensing program is executed, the dispensing water circuit 110 is controlled to supply water to the washing machine, and the liquid level in the washing chamber 400 is obtained to determine whether the preset first water level has been reached. If so, the dispensing water circuit 110 is controlled to stop supplying water to the washing machine; if not, the dispensing water circuit 110 is controlled to continue supplying water.

[0068] Since the amount of additives added in the dispensing device of the present invention and the amount of water entering the dispensing water channel 110 are added to the washing machine in a predetermined ratio, the amount of additives added can be accurately converted by obtaining the liquid level in the washing chamber 400. Therefore, the washing machine can be controlled by the above method according to the above theory, which can not only ensure the accuracy of the amount of additives added, but also eliminate the need to set flow measurement components such as flow sensors in the dispensing device, thereby reducing the volume of the dispensing device and reducing the complexity of the inside of the dispensing device.

[0069] In the embodiment of the present invention, the water inflow into the water channel 110 is controlled by controlling the opening and closing of the first water inlet valve 111 .

[0070] In an embodiment of the present invention, after the automatic delivery stage, a concentrated washing stage is executed to control the rotation of the impeller in the washing chamber 400; after the concentrated washing stage, a main water inlet stage is executed to control the water supply circuit 130 to inlet water into the washing chamber 400 to a preset second water level, and then the main washing stage is executed.

[0071] In the embodiment of the present invention, the water inflow into the water supply circuit 120 is controlled by controlling the opening and closing of the second water inlet valve 131 .

[0072] Through the above settings, the washing machine is controlled to pre-wash the clothes with a mixed liquid containing high-concentration detergent after the automatic feeding stage is completed. After the pre-wash is completed, water is added to the set water level for normal washing. The concentrated washing stage is conducive to quickly cleaning stains on clothes, thereby improving the clothing cleaning ratio.

[0073] In an embodiment of the present invention, when a washing program starts, it is determined whether the washing program includes an automatic water delivery phase. If so, the automatic water delivery phase is executed; if not, the main water supply phase is executed.

[0074] Through the above arrangement, the user can choose to manually add additives directly into the washing chamber 400, or automatically add additives into the washing chamber 400 through the dosing device, so that the control mode of the washing machine has a higher degree of freedom.

[0075] In an embodiment of the present invention, the control steps of the washing machine are:

[0076] S1: Start washing program;

[0077] S2: Determine whether the current washing program includes an automatic delivery phase; if so, execute S3; if not, execute S7;

[0078] S3: the automatic delivery phase begins, and the delivery waterway 110 begins to be filled with water;

[0079] S4: Determine whether the water level in the washing chamber 400 reaches the first water level. If yes, execute S5; if no, execute S3;

[0080] S5: Stop the water inlet to the waterway 110;

[0081] S6: starting the concentrated washing stage until the concentrated washing stage ends;

[0082] S7: The main water inflow phase begins, and the water supply channel 130 begins to inflow water;

[0083] S8: Determine whether the water level in the washing chamber 400 reaches the second water level. If yes, execute S9; if no, execute S8;

[0084] S9: start the main wash phase;

[0085] S10: The main wash phase ends and the washing program is completed.

[0086] In an embodiment of the present invention, during the automatic feeding stage, the stacking situation of the clothes in the washing chamber 400 is obtained, and the volume of the part of the clothes above the first water level is judged based on the stacking height and the first water level, and the material of the part of the clothes is obtained, and the total water absorption of the part of the clothes is judged; the first water inflow in the washing chamber 400 is judged based on the first water level, and a new first water inflow is obtained by subtracting the first water inflow from the total water absorption, and the first water level is corrected based on the newly obtained first water inflow.

[0087] During the automatic delivery phase, since the first water intake is small, the first water level is usually not higher than the highest position of the clothes, and during the water intake process, the clothes above the first water level usually absorb the mixed liquid to a saturated state, resulting in the actual water intake being the sum of the first water intake and the total water absorption when water is added to the washing chamber 400 to the first water level. This will cause the actual amount of additives delivered to be greater than the preset value, which will not only cause unnecessary waste, but more importantly, the mixed liquid containing a high concentration of additives may "burn the clothes" when the clothes are concentratedly washed, that is, the clothes will fade significantly, affecting the user experience. The present invention avoids the above situation by adjusting the first water level according to the water absorption of the clothes above the first water level.

[0088] In an embodiment of the present invention, a camera is provided in the washing chamber 400, and the accumulation condition of the clothes and the material of the clothes are obtained based on the pictures of the inside of the washing chamber 400 taken by the camera.

[0089] The above description is only a preferred embodiment of the present invention, and does not limit the present invention in any form. Although the present invention has been disclosed as above in the preferred embodiment, it is not used to limit the present invention. Any technician familiar with this patent can make some changes or modifications to equivalent embodiments of equivalent changes by using the technical content suggested above without departing from the scope of the technical solution of the present invention. The implementation scheme in the above embodiment can be further combined or replaced. However, any simple modification, equivalent change and modification made to the above embodiment according to the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the scope of the solution of the present invention.

Claims

1. A delivery device, characterized in that: include, A waterway is provided for the circulation of the incoming water flow; The liquid storage chamber is used to store additives and is connected with the delivery water channel through the suction water channel of the delivery device; It is characterized in that A driving chamber, connected in series to the delivery waterway, is provided with a driving impeller driven to rotate by the incoming water flow; The suction chamber is connected in series to the suction water path, and a centrifugal impeller is arranged inside the chamber, and the centrifugal impeller is drivingly connected to the driving impeller.

2. A delivery device according to claim 1, characterized in that: It also includes a delivery shell, which has a driving chamber and a suction chamber inside, and the driving chamber and the suction chamber are isolated from each other by a partition wall; A transmission shaft penetrating the partition wall is arranged in the delivery shell, and two ends of the transmission shaft are coaxially connected with the driving impeller and the suction impeller respectively.

3. A delivery device according to claim 1, characterized in that: The water outlet of the suction water channel is connected with the delivery water channel downstream of the driving chamber, and a one-way valve for one-way conduction is arranged on the suction water channel downstream of the suction chamber.

4. A delivery device according to claim 3, characterized in that: The diameter of the suction water channel is smaller than the diameter of the delivery water channel, and the axis of the suction water channel and the axis of the delivery water channel are staggered.

5. A delivery device according to claim 4, characterized in that: The extension direction of the suction water channel is perpendicular to the extension direction of the connected delivery water channel; the inner wall of one side of the suction water channel is flush with the inner wall of one side of the delivery water channel.

6. A delivery device according to claim 3, characterized in that: It also includes a water supply waterway, the water outlet of which is connected to the delivery waterway downstream of the driving chamber; Preferably, the connection point between the injection waterway and the water supply waterway is located upstream of the connection point with the suction waterway.

7. A delivery device according to any one of claims 1 to 6, characterized in that: A liquid inlet is provided on the suction chamber, and the liquid inlet coincides with the central axis of the centrifugal impeller.

8. A delivery device according to any one of claims 1 to 6, characterized in that: The suction chamber is a cylindrical structure, and the centrifugal impeller is coaxially arranged with the cylindrical suction chamber; a liquid outlet is arranged on one side of the cylindrical suction chamber, and the direction of the liquid outlet is arranged in the same direction as the rotation direction of the centrifugal impeller.

9. A delivery device according to claim 8, characterized in that: The centrifugal impeller is provided with centrifugal blades extending outward from the center, and the extending ends of the centrifugal blades are respectively in contact with the inner peripheral surface of the columnar suction cavity.

10. A washing machine comprising: A washing chamber, for providing a space for accommodating clothes; It is characterized in that A delivery device according to any one of claims 1 to 9 is used, wherein each water channel of the delivery device is connected to the washing chamber respectively.

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