Washing equipment and control method thereof

Abstract

The invention discloses washing equipment and a control method thereof.The washing equipment comprises a water injection device and a control module, the water injection device comprises a water injection box, a concentration detection module and a stirring impeller, a feeding opening, a water inlet and an outlet are formed in the water injection box, and the concentration detection module is located in the water injection box; the concentration detection module is used for monitoring the concentration in the water injection box body; the stirring impeller is rotatably arranged in the water injection box body; the control module controls the rotating speed of the stirring impeller according to the concentration; the rotating speed of the stirring impeller is positively correlated with the concentration. The stirring impeller is used for stirring, and the rotating speed of the stirring impeller is controlled according to the concentration in the water injection box body, so that a put object in the water injection box can be quickly, sufficiently and uniformly mixed with water, a detergent can be prevented from remaining in the water injection box, the washings are prevented from being damaged, and the washing quality of the washings is improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of washing equipment, and specifically relates to a washing equipment with a water injection device and its control method. Background Art

[0002] Currently, washing machines are widely used. A washing machine is provided with a detergent dispenser box. During washing, the user puts the detergent into the dispenser box, and during the water injection process of the washing machine, the water flow drives the detergent in the dispenser box into the washing tub to achieve the dispensing of the detergent.

[0003] However, due to the unstable water pressure in the user's home, there are problems such as uneven mixing of the detergent after water inlet, incomplete dissolution, relatively high local concentration that is likely to damage clothes, and the detergent is prone to accumulate in the corners of the water injection box. Washing powder is prone to caking and accumulating in the detergent dispenser box, resulting in residue, insufficient dispensing amount of the detergent into the washing tub, and poor washing degree of the clothes.

[0004] The above information disclosed in this background art is only used to increase the understanding of the background art of this application. Therefore, it may include prior art that is not known to those of ordinary skill in the art. Summary of the Invention

[0005] The present invention proposes a washing equipment and its control method to solve the technical problems that the existing detergent dispenser box has uneven mixing of the detergent after water inlet or accumulation and cannot be completely dispensed into the washing tub.

[0006] To achieve the above invention / design purpose, the present invention is implemented by adopting the following technical solutions: A washing equipment includes a water injection device and a control module. The water injection device includes a water injection box body, and a dispensing port, a water inlet and an outlet are opened on the water injection box body. The water injection device includes: A concentration detection module, which is located in the water injection box body, and the concentration detection module is used to monitor the concentration in the water injection box body; A stirring impeller, which is rotatably arranged in the water injection box body; The control module is used to control the rotation speed of the stirring impeller according to the concentration; the rotation speed of the stirring impeller is positively correlated with the concentration.

[0007] In the washing device as described above, the water filling box body is divided into a first cavity and a second cavity by a partition; a loading port, a first water inlet and a first outlet are provided on the water filling box body corresponding to the first cavity, and a first concentration detection module and a first stirring impeller are arranged in the first cavity; a second water inlet and a second outlet are provided on the water filling box body corresponding to the second cavity, and a second concentration detection module and a second stirring impeller are arranged in the second cavity; a valve is provided on the partition, and the valve is used to make the first cavity and the second cavity conductive or isolated.

[0008] In the washing device as described above, the concentration detection module is located on the inner wall of the water injection box and below the injection port.

[0009] In the washing device as described above, the stirring impeller is driven by a driving motor, and the driving motor is used to control the rotation speed of the stirring impeller; or, the stirring impeller is rotatably connected to the water inlet, the stirring impeller has a water inlet chamber connected to the water inlet, the blades of the stirring impeller have injection holes, and the injection holes are connected to the water inlet chamber, and a regulating valve is provided on the water inlet or on a pipeline connected to the water inlet, and the regulating valve is used to control the rotation speed of the stirring impeller.

[0010] In the washing device as described above, the water injection device includes a foreign matter detection module, and the foreign matter detection module is used to detect whether there is a block-shaped foreign matter in the water injection box body; The control module is used to control the rotation speed of the stirring impeller to increase or alarm when receiving the foreign matter detection signal from the foreign matter detection module.

[0011] A control method for a washing device, the control method comprising: Controlling water inlet into the water inlet; Monitoring the concentration in the water injection box; controlling the rotation speed of the stirring impeller according to the concentration; Wherein, the rotation speed of the stirring impeller is positively correlated with the concentration.

[0012] A control method for a washing device, the control method comprising: When the first type of material needs to be added during the washing process, the valve is controlled to be closed, and after the first type of material is added to the inlet, water is controlled to flow into the first water inlet, and the first concentration detection module monitors the concentration of the first cavity, and controls the rotation speed of the first stirring impeller according to the concentration; When the first type of additive and the second type of additive need to be added in sequence during the washing process, control the valve to open and the second outlet to close. After adding the second type of additive at the dosing port, control the valve to close, and add the first type of additive at the dosing port; when adding the first type of additive, control the first water inlet to let water in, and the first concentration detection module monitors the concentration in the first chamber and controls the rotation speed of the first stirring impeller according to the concentration; when adding the second type of additive, control the second outlet to open, control the second water inlet to let water in, and the second concentration detection module monitors the concentration in the second chamber and controls the rotation speed of the second stirring impeller according to the concentration.

[0013] For the control method of the washing equipment as described above, when there is an additive in one chamber and no additive in the other chamber, control the valve to open, control the outlet corresponding to the chamber with the additive to close, and the outlet corresponding to the chamber without the additive to open; Control the stirring impeller with the additive to rotate and the stirring impeller without the additive not to rotate, or control both stirring impellers to rotate.

[0014] For the control method of the washing equipment as described above, When controlling both stirring impellers to rotate, control the rotation speeds of both stirring impellers according to the concentration monitored by the concentration detection module of the chamber with the additive or control the rotation speeds of the two stirring impellers respectively according to the concentrations monitored by the two concentration detection modules, and the rotation directions of the first stirring impeller and the second stirring impeller are the same or opposite.

[0015] For the control method of the washing equipment as described above, during the water inlet process, detect whether there are blocky foreign objects in the water injection box body. When there are blocky foreign objects, control the rotation speed of the stirring impeller to increase or give an alarm.

[0016] Compared with the prior art, the advantages and positive effects of the present invention are: The washing equipment of the present invention includes a water injection device and a control module. The water injection device includes a water injection box body, a concentration detection module and a stirring impeller. The water injection box body is provided with a dosing port, a water inlet and an outlet. The concentration detection module is located in the water injection box body and is used to monitor the concentration in the water injection box body; the stirring impeller is rotatably arranged in the water injection box body; the control module controls the rotation speed of the stirring impeller according to the concentration; the rotation speed of the stirring impeller is positively correlated with the concentration. By stirring with the stirring impeller and controlling the rotation speed of the stirring impeller according to the concentration in the water injection box body, the present invention can make the additives in the water injection box mix with water quickly and evenly, and can avoid the detergent remaining in the water injection box, ensure that the washed objects are not damaged, and improve the washing quality of the washed objects.

[0017] Control method for the washing device of the present invention: Control the water inlet to let water in; Monitor the concentration in the water injection box; Control the rotation speed of the stirring impeller according to the concentration; wherein, the rotation speed of the stirring impeller is positively correlated with the concentration. By stirring with the stirring impeller and controlling the rotation speed of the stirring impeller according to the concentration in the water injection box, the present invention can make the substances put in the water injection box mix with water quickly, fully and evenly, and can avoid the detergent remaining in the water injection box, ensure that the washed objects are not damaged, and improve the washing quality of the washed objects.

[0018] After reading the specific embodiments of the present invention in conjunction with the accompanying drawings, other features and advantages of the present invention will become clearer. Brief Description of the Drawings

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the accompanying drawings required for use in the embodiments. Obviously, the accompanying drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, other accompanying drawings can be obtained based on these drawings without creative efforts.

[0020] Figure 1 It is a schematic diagram of the water injection device in the specific embodiment 1 of the present invention.

[0021] Figure 2 It is a flowchart of the specific embodiment 1 of the present invention.

[0022] Figure 3 It is a schematic diagram of the water injection device in the specific embodiment 2 of the present invention.

[0023] Figure 4 It is a flowchart of the specific embodiment 2 of the present invention.

[0024] Figure 5 It is a schematic diagram of the water injection device in the specific embodiment 3 of the present invention.

[0025] In the figure, 1. Water injection box; 11. First cavity; 12. Second cavity; 13. Partition; 131. Valve; 2. Concentration detection module; 21. First concentration detection module; 22. Second concentration detection module; 3. Stirring impeller; 31. Cylinder; 32. Blade; 321. Injection hole; 311. First stirring impeller; 312. Second stirring impeller; 4. Foreign object detection module; 5. Feeding port; 6. Water inlet; 61. First water inlet; 62. Second water inlet; 7. Outlet; 71. First outlet; 72. Second outlet; 8. Regulating valve; 81. First regulating valve; 82. Second regulating valve. Detailed implementation manners

[0026] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0027] In the description of the present invention, it should be understood that the orientation or positional relationships indicated by the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation 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 orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0028] In the description of the present invention, it should be noted that unless otherwise clearly specified and defined, 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. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations. In the description of the implementation manners, specific features, structures, materials, or characteristics can be combined in a suitable manner in any one or more embodiments or examples.

[0029] The terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features.

[0030] In the description of the present invention, unless otherwise stated, the meaning of "a plurality of" is two or more.

[0031] A washing device with a water injection device, by arranging a concentration detection module and a stirring impeller in the water injection device, after water inlet, the concentration detection module detects the concentration in the water injection device, and controls the rotation speed of the stirring impeller according to the concentration in the water injection device, so as to accelerate the dissolution of the substances placed in the water injection device, improve the speed of uniform mixing of the substances and water, make the substances placed in the water injection device quickly and uniformly mixed with the water in the washing tub, avoid the damage to the washing objects in the washing tub caused by uneven mixing entering the washing tub, and at the same time, the stirring device can also avoid the residue of the substances in the water injection device, ensure that the amount of substances placed in the washing tub is sufficient, and thus ensure the washing quality.

[0032] The dispensing substance is generally a detergent. Of course, it can also be a fabric softener or other dispensing agent for maintaining the laundry.

[0033] The washing device and its control method will be described below with reference to the accompanying drawings: Embodiment 1

[0034] The washing device includes a water injection device and a control module. In Figure 1 the example, the water injection device includes a water injection box body 1, a concentration detection module 2, a stirring impeller 3, and a foreign object detection module 4.

[0035] The water injection box body 1 is provided with a dispensing port 5, a water inlet 6, and an outlet 7.

[0036] The dispensing port 5 is used to add the dispensing substance, and the dispensing substance is a detergent or the like.

[0037] The water inlet 6 is used to introduce water into the water injection box body 1, and the water entering the water injection box body 1 is mixed with the dispensing substance in the water injection box body 1.

[0038] The outlet 7 is used to dispense the water and / or the dispensing substance in the water injection box body 1 into the washing tub.

[0039] The concentration detection module 2 is located inside the water injection box body 1, and the concentration detection module 2 is used to monitor the concentration inside the water injection box body 1.

[0040] The concentration detection module 2 is generally a concentration sensor, which can detect the concentration inside the water injection box body 1 in real time or at regular intervals.

[0041] The concentration detection module 2 is located on the inner wall of the water injection box body 1 and below the dispensing port 5. The dispensing substances such as detergents added at the dispensing port 5 reach the inner wall of the water injection box body 1 below the dispensing port 5 under the action of gravity. The concentration of the dispensing substance at the inner wall of the water injection box body 1 below the dispensing port 5 is the highest. Therefore, by setting the concentration detection module 2 on the inner wall of the water injection box body 1 below the dispensing port 5, the highest concentration inside the water injection box body 1 can be obtained more accurately, and the rotation speed of the stirring impeller 3 can be adjusted according to the highest concentration.

[0042] Furthermore, the concentration detection module 2 is located at the intersection of the bottom wall and the side wall of the water injection box body 1 below the dispensing port 5, and can monitor the detergent concentration at the corner of the water injection box body 1. The rotation speed of the stirring impeller 3 can be adjusted according to the detergent concentration at the corner, which can prevent the detergent from adhering to the corner.

[0043] The stirring impeller 3 is rotatably arranged inside the water injection box body 1.

[0044] In Figure 1In the example, the stirring impeller 3 is rotatably connected to the water inlet 6. For example, a cylindrical clamping ring can be formed at the water inlet 6, and the stirring impeller 3 is mounted on the cylindrical clamping ring. The stirring impeller 3 and the cylindrical clamping ring have axial limiting, and the two can rotate relative to each other around the central axis.

[0045] The stirring impeller 3 has a water inlet cavity communicated with the water inlet 6 , and a blade 32 of the stirring impeller 3 has a spray hole 321 , and the spray hole 321 is communicated with the water inlet cavity.

[0046] Specifically, the stirring impeller 3 includes a column 31 and a plurality of blades 32 located on the column 31, the plurality of blades 32 are distributed around the column 31 in a radial shape, the column 31 has a hollow cavity, the column 31 is mounted on a cylindrical clamping ring, the side wall of the cylindrical clamping ring has a through hole, and a water inlet cavity is arranged on the blades 32 and the column 31, and the water inlet cavity can be connected with the through hole during the rotation of the stirring impeller 3. When the stirring impeller 3 is filled with water, the water sprayed from the spray hole 321 drives the stirring impeller 3 to rotate.

[0047] The water inlet 6 or the pipeline connected to the water inlet 6 is provided with a regulating valve 8, which is used to control the water inlet flow rate, thereby controlling the rotation speed of the stirring impeller 3. The larger the opening of the regulating valve 8, the larger the water inlet flow rate, and the faster the rotation speed of the stirring impeller 3; the smaller the opening of the regulating valve 8, the smaller the water inlet flow rate, and the slower the rotation speed of the stirring impeller 3. That is, the rotation speed of the stirring impeller 3 is adjusted by adjusting the opening of the regulating valve 8.

[0048] In this way, the water inlet of the water injection box body 1 and the stirring impeller 3 are integrated together, which can avoid the need to set up a separate stirring impeller driving device.

[0049] In some other embodiments, the stirring impeller 3 is separately provided from the water inlet of the water injection box body 1, and the stirring impeller 3 is driven by a driving motor, and the driving motor is used to control the rotation speed of the stirring impeller.

[0050] The control module is used to receive the concentration detected by the concentration detection module 2 and control the rotation speed of the stirring impeller 3 according to the concentration; the rotation speed of the stirring impeller 3 is positively correlated with the concentration. That is, the higher the detected concentration, the faster the rotation speed of the stirring impeller 3, so as to speed up the mixing speed of the input material and water. When the detected concentration decreases, the rotation speed of the stirring impeller 3 can be reduced.

[0051] The water injection device comprises a foreign matter detection module 4 , and the foreign matter detection module 4 is used to detect whether there is a block-shaped foreign matter in the water injection box body 1 .

[0052] The control module is used to control the rotation speed of the stirring impeller 3 to increase or alarm when receiving the foreign matter detection signal from the foreign matter detection module 4.

[0053] In some embodiments, the foreign matter detection module 4 is an acoustic foreign matter sensor, which detects bulk foreign matter through ultrasonic waves. When bulk foreign matter is detected, the rotation speed of the stirring impeller 3 is first controlled to increase to accelerate the dissolution of the bulk foreign matter. If there are still bulk foreign matter after the set time, the control module controls the alarm device to sound an alarm to prompt the user to handle it.

[0054] In some embodiments, the foreign body detection module 4 is a magnetic sensor, which can detect metal foreign bodies in the objects, such as iron filings, paper clips, etc. When the magnetic sensor detects a block of foreign bodies, the control module controls the alarm device to sound an alarm, prompting the user to handle it.

[0055] In some embodiments, the foreign body detection module 4 includes an acoustic foreign body sensor and a magnetic sensor. The acoustic foreign body sensor detects bulk foreign bodies through ultrasonic waves. When a bulk foreign body is detected, the rotation speed of the stirring impeller 3 is first controlled to increase to accelerate the dissolution of the bulk foreign body. If the bulk foreign body still exists after the set time, the control module controls the alarm device to alarm and prompt the user to handle it. When the magnetic sensor detects a bulk foreign body, the control module controls the alarm device to alarm and prompt the user to handle it.

[0056] This embodiment also proposes a control method for a washing device: After adding the materials into the water injection box, control the water inlet; Water enters the water injection box and the concentration in the water injection box is monitored; Control the speed of the stirring impeller according to the concentration; Among them, the rotation speed of the stirring impeller is positively correlated with the concentration.

[0057] During the water inlet process, it is detected whether there are block-like foreign objects in the water injection box. When there are block-like foreign objects, the speed of the stirring impeller is controlled to increase or an alarm is sounded.

[0058] Specifically, Figure 2 As shown, after the laundry is placed in the washing tub and detergent is added into the water filling box, a washing mode is selected. The control method of this embodiment includes the following steps: S1. Start.

[0059] S2. Weigh and determine the amount of water intake.

[0060] S3, control the water inlet to flow water into the water injection box.

[0061] S4. The concentration detection module monitors the concentration in the water injection box.

[0062] S5. The control module controls the rotation speed of the stirring impeller according to the concentration.

[0063] S6. The foreign object sensor detects whether there is a foreign object. If so, proceed to step S7; otherwise, proceed to step S8.

[0064] S7, increase the speed of the stirring impeller or alarm. Increase the speed of the stirring impeller to the maximum speed. Go to step S6.

[0065] S8. Determine whether the concentration has dropped to the water concentration threshold range. If so, proceed to step S10; otherwise, proceed to step S9.

[0066] S9. Control the rotation speed of the stirring impeller according to the concentration and proceed to step S8.

[0067] S10, entering the normal water inlet process, and ending the control of the stirring impeller. In the embodiment where the stirring impeller is driven by a driving motor, the driving motor can be controlled to stop moving, that is, the stirring impeller is driven to stop rotating. In the embodiment where the stirring impeller is controlled by a regulating valve, the regulating valve can be kept at the current opening or the regulating valve can be controlled to be adjusted to the maximum opening.

[0068] S11. When water reaches the water intake volume, stop intake.

[0069] S12, washing, rinsing and dehydration are performed according to the washing mode.

[0070] In this embodiment, the rotation speed of the stirring impeller is controlled according to the concentration to increase the speed at which the input material and water are evenly mixed. Embodiment 2

[0071] The washing equipment includes a water injection device and a control module. Figure 3 In the example, the water injection device includes a water injection box body 1, and the water injection box body 1 is divided into a first cavity 11 and a second cavity 12 by a partition 13.

[0072] The partition 13 is provided with a valve 131, which is used to connect or isolate the first cavity 11 and the second cavity 12. The valve 131 is located directly below the delivery port 5. When it is necessary to add an object to the second cavity 12, the control module controls the valve 131 to open. After the object is added to the second cavity 12, the control module controls the valve 131 to close. Generally, detergent is added to the first cavity 11, and softener and other care agents are added to the second cavity 12.

[0073] During washing, the detergent in the first cavity 11 is first put into the washing tub. When care is needed after the detergent is washed, the softener and other care agents in the second cavity 12 are put into the washing tub. In order to avoid the softener in the second cavity 12 being directly put into the washing tub, before the softener is needed, the control module controls the second outlet 72 to be closed. Specifically, a second outlet valve can be set at the second outlet 72, and the second outlet 72 can be controlled to be opened or closed by controlling the second outlet valve.

[0074] On the water injection box body 1 corresponding to the first cavity 11, a feeding port 5, a first water inlet 61 and a first outlet 71 are provided.

[0075] The feeding port 5 is used for adding feedings, and the feedings are detergents, fabric softeners, etc.

[0076] The first water inlet 61 is used for water to enter the first cavity 11 of the water injection box body 1, and the water entering the first cavity 11 of the water injection box body 1 is mixed with the feedings in the first cavity 11.

[0077] The first outlet 71 is used for discharging the water and / or feedings in the first cavity 11 into the washing tub.

[0078] A first concentration detection module 21 and a first stirring impeller 311 are arranged in the first cavity 11.

[0079] The first concentration detection module 21 is located in the first cavity 11, and the first concentration detection module 21 is used for monitoring the concentration in the first cavity 11.

[0080] The first concentration detection module 21 is generally a concentration sensor, which can detect the concentration in the first cavity 11 in real time or at regular intervals.

[0081] The first concentration detection module 21 is located on the inner wall of the water injection box body 1 corresponding to the first cavity 11 and below the feeding port 5. Specifically, it can be located on the periphery of the valve 131 on the partition plate 13, or on the side wall connected to the partition plate 13. The feedings such as detergents added at the feeding port 5 reach the inner wall of the water injection box body 1 corresponding to the first cavity 11 below the feeding port 5 under the action of gravity. The concentration of the feedings at the inner wall of the water injection box body 1 corresponding to the first cavity 11 below the feeding port 5 is the highest. Therefore, setting the first concentration detection module 21 on the inner wall of the water injection box body 1 corresponding to the first cavity 11 below the feeding port 5 can obtain the highest concentration in the first cavity 11 more accurately, and adjust the rotation speed of the first stirring impeller 311 according to the highest concentration.

[0082] Furthermore, the first concentration detection module 21 is located at the intersection of the partition plate 13 below the feeding port 5 and the side wall of the water injection box body 1, which can monitor the detergent concentration at the corner of the water injection box body 1. Adjusting the rotation speed of the first stirring impeller 311 according to the detergent concentration at the corner can prevent the detergent from adhering to the corner.

[0083] The first stirring impeller 311 is rotatably arranged in the first cavity 11.

[0084] In Figure 3In the example, the first stirring impeller 311 is rotatably connected to the first water inlet 61. For example, a cylindrical snap ring can be formed at the first water inlet 61, and the first stirring impeller 311 is sleeved on the cylindrical snap ring. The first stirring impeller 311 and the cylindrical snap ring have axial limits, and the two can rotate relative to the central axis.

[0085] The first stirring impeller 311 has a water inlet cavity communicating with the first water inlet 61. The blades 32 of the first stirring impeller 311 are provided with injection holes 321, and the injection holes 321 communicate with the water inlet cavity.

[0086] Specifically, the first stirring impeller 311 includes a column 31 and a plurality of blades 32 located on the column 31. The plurality of blades 32 are radially distributed around the column 31. The column 31 has a hollow cavity. The column 31 is sleeved on the cylindrical snap ring. The side wall of the cylindrical snap ring is provided with through holes. The blades 32 and the column 31 are provided with a water inlet cavity. During the rotation of the first stirring impeller 311, the water inlet cavity can communicate with the through holes. When the first stirring impeller 311 takes in water, the water ejected from the injection holes 321 pushes the first stirring impeller 311 to rotate.

[0087] A first regulating valve 81 is provided on the first water inlet 61 or on the pipeline connected to the first water inlet 61. The first regulating valve 81 is used to control the water inlet flow rate, thereby controlling the rotation speed of the first stirring impeller 311. The larger the opening degree of the first regulating valve 81, the larger the water inlet flow rate, and the faster the rotation speed of the first stirring impeller 311; the smaller the opening degree of the first regulating valve 81, the smaller the water inlet flow rate, and the slower the rotation speed of the first stirring impeller 311. That is, the rotation speed of the first stirring impeller 311 is adjusted by adjusting the opening degree of the first regulating valve 81.

[0088] This method integrates the water inlet of the first cavity 11 with the first stirring impeller 311, which can avoid setting up a separate stirring impeller driving device.

[0089] In some other embodiments, the first stirring impeller 311 is separately arranged from the water inlet of the first cavity 11. The first stirring impeller 311 is driven by a driving motor, and the driving motor is used to control the rotation speed of the first stirring impeller 311.

[0090] A second water inlet 62 and a second outlet 72 are provided on the water injection box body 1 corresponding to the second cavity 12.

[0091] The second water inlet 62 is used to introduce water into the second cavity 12 of the water injection box body 1, and the water introduced into the second cavity 12 of the water injection box body 1 is mixed with the substances placed in the second cavity 12.

[0092] The second outlet 72 is used to discharge the water and / or substances in the second cavity 12 into the washing tub.

[0093] A second concentration detection module 22 and a second stirring impeller 312 are arranged in the second cavity 12.

[0094] The second concentration detection module 22 is located in the second cavity 12 and is used to monitor the concentration in the second cavity 12.

[0095] The second concentration detection module 22 is generally a concentration sensor and can detect the concentration in the second cavity 12 in real time or at regular intervals.

[0096] The second concentration detection module 22 is located on the inner wall of the water injection box 1 corresponding to the second cavity 12 and below the feeding port 5. The detergents and other substances added at the feeding port 5 reach the inner wall of the water injection box 1 corresponding to the second cavity 12 below the feeding port 5 under the action of gravity. The concentration of the substances at the inner wall of the water injection box 1 corresponding to the second cavity 12 below the feeding port 5 is the highest. Therefore, by arranging the second concentration detection module 22 on the inner wall of the water injection box 1 corresponding to the second cavity 12 below the feeding port 5, the highest concentration in the second cavity 12 can be obtained more accurately, and the rotation speed of the second stirring impeller 312 can be adjusted according to the highest concentration.

[0097] Furthermore, the second concentration detection module 22 is located at the intersection of the bottom wall and the side wall of the water injection box 1 of the second cavity 12 below the feeding port 5, and can monitor the detergent concentration at the corner of the water injection box 1. The rotation speed of the second stirring impeller 312 can be adjusted according to the detergent concentration at the corner, which can prevent the detergent from adhering to the corner.

[0098] The second stirring impeller 312 is rotatably arranged in the second cavity 12.

[0099] In Figure 3 In the example, the second stirring impeller 312 is rotationally connected to the second water inlet 62. For example, a cylindrical snap ring can be formed at the second water inlet 62, and the second stirring impeller 312 is sleeved on the cylindrical snap ring. The second stirring impeller 312 and the cylindrical snap ring have axial limits, and the two can rotate relative to the central axis.

[0100] The second stirring impeller 312 has a water inlet cavity communicating with the second water inlet 62, and the blades 32 of the second stirring impeller 312 are provided with injection holes 321, and the injection holes 321 communicate with the water inlet cavity.

[0101] Specifically, the second stirring impeller 312 includes a column 31 and a plurality of blades 32 located on the column 31, the plurality of blades 32 are distributed around the column 31 in a radial shape, the column 31 has a hollow cavity, the column 31 is mounted on a cylindrical clamping ring, the side wall of the cylindrical clamping ring has a through hole, and a water inlet cavity is provided on the blades 32 and the column 31, and the water inlet cavity can be connected with the through hole during the rotation of the second stirring impeller 312. When the second stirring impeller 312 is filled with water, the water sprayed from the spray hole 321 drives the second stirring impeller 312 to rotate.

[0102] The second water inlet 62 or the pipeline connected to the second water inlet 62 is provided with a second regulating valve 82, and the second regulating valve 82 is used to control the water inlet flow rate, thereby controlling the rotation speed of the second stirring impeller 312. The larger the opening of the second regulating valve 82, the larger the water inlet flow rate, and the faster the rotation speed of the second stirring impeller 312; the smaller the opening of the second regulating valve 82, the smaller the water inlet flow rate, and the slower the rotation speed of the second stirring impeller 312. That is, the rotation speed of the second stirring impeller 312 is adjusted by adjusting the opening of the second regulating valve 82.

[0103] In this way, the water inlet of the second cavity 12 is integrated with the second stirring impeller 312, thereby avoiding the need to provide a separate stirring impeller driving device.

[0104] In some other embodiments, the second stirring impeller 312 is disposed separately from the water inlet of the second chamber 12 , and the second stirring impeller 312 is driven by a driving motor, and the driving motor is used to control the rotation speed of the second stirring impeller 312 .

[0105] The control module is used to receive the concentration detected by the first concentration detection module 21 and control the rotation speed of the first stirring impeller 311 according to the concentration; the rotation speed of the first stirring impeller 311 is positively correlated with the concentration. The control module is used to receive the concentration detected by the second concentration detection module 22 and control the rotation speed of the second stirring impeller 312 according to the concentration; the rotation speed of the second stirring impeller 312 is positively correlated with the concentration. That is, the higher the detected concentration, the faster the rotation speed of the stirring impeller, so as to speed up the mixing speed of the input and water, and when the detected concentration decreases, the rotation speed of the stirring impeller can be reduced.

[0106] The water injection device comprises a foreign matter detection module 4 , and the foreign matter detection module 4 is used to detect whether there is a block-shaped foreign matter in the water injection box body 1 .

[0107] The first cavity 11 and the second cavity 12 may be provided with a foreign body detection module 4 respectively. Of course, a foreign body detection module 4 common to the first cavity 11 and the second cavity 12 may also be provided on the partition plate 13 .

[0108] The control module is used to control the rotation speed of the stirring impeller 3 to increase or alarm when receiving the foreign matter detection signal from the foreign matter detection module 4.

[0109] In some embodiments, the foreign object detection module 4 is an acoustic wave foreign object sensor, which detects bulk foreign objects through ultrasonic waves. When a bulk foreign object is detected, the rotation speed of the stirring impeller in the corresponding chamber is first increased to accelerate the dissolution of the bulk foreign object. If the bulk foreign object still exists after a set time, the control module controls the alarm device to give an alarm to prompt the user to handle it.

[0110] In some embodiments, the foreign object detection module 4 is a magnetic sensor, and the magnetic sensor can detect metal foreign objects in the input objects, such as iron filings, paper clips, etc. When the magnetic sensor detects a bulk foreign object, the control module controls the alarm device to give an alarm to prompt the user to handle it.

[0111] In some embodiments, the foreign object detection module 4 includes an acoustic wave foreign object sensor and a magnetic sensor. The acoustic wave foreign object sensor detects bulk foreign objects through ultrasonic waves. When a bulk foreign object is detected, the rotation speed of the stirring impeller in the corresponding chamber is first increased to accelerate the dissolution of the bulk foreign object. If the bulk foreign object still exists after a set time, the control module controls the alarm device to give an alarm to prompt the user to handle it. When the magnetic sensor detects a bulk foreign object, the control module controls the alarm device to give an alarm to prompt the user to handle it.

[0112] This embodiment also proposes a control method for a washing device: When the first type of input object needs to be put in during the washing process, the control valve is closed. After the first type of input object is completely added at the input port, the first water inlet is controlled to let water in, and the first concentration detection module monitors the concentration in the first chamber and controls the rotation speed of the first stirring impeller according to the concentration. During the water inlet process, it is detected whether there are bulk foreign objects in the first chamber. When there are bulk foreign objects, the rotation speed of the stirring impeller is increased or an alarm is given.

[0113] When the first type of input object and the second type of input object need to be put in sequentially during the washing process, the control valve is opened and the second outlet is closed. After the second type of input object is completely added at the input port, the control valve is closed, and the first type of input object is added at the input port; when adding the first type of input object, the first water inlet is controlled to let water in, the first concentration detection module monitors the concentration in the first chamber, and the rotation speed of the first stirring impeller is controlled according to the concentration; when adding the second type of input object, the second outlet is controlled to open, the second water inlet is controlled to let water in, the second concentration detection module monitors the concentration in the second chamber, and the rotation speed of the second stirring impeller is controlled according to the concentration.

[0114] Specifically, as Figure 4 shown, after placing the object to be washed in the washing tub, the following controls are performed: S1. Power on.

[0115] S2. Select the washing mode.

[0116] S3. Whether to add a softening agent. If yes, go to step S4; otherwise, close the valve, add detergent to the first cavity, and perform washing in the only-detergent-adding mode according to steps S1 - S12 of Embodiment 1.

[0117] S4. Open the valve, close the second outlet, and add the softening agent to the second cavity.

[0118] S5. After the softening agent is added, close the valve.

[0119] S6. Add detergent to the first cavity.

[0120] S7. Start washing.

[0121] S8. Weigh to determine the water inflow.

[0122] S9. Control the first water inlet to let water into the first cavity.

[0123] S10. The first concentration detection module monitors the concentration in the first cavity.

[0124] S11. The control module controls the rotation speed of the first stirring impeller according to the concentration.

[0125] S12. The foreign object sensor detects whether there is a foreign object in the first cavity. If yes, go to step S13; otherwise, go to step S14.

[0126] S13. Increase the rotation speed of the first stirring impeller or give an alarm. Increase the rotation speed of the first stirring impeller to the maximum speed. Go to step S12.

[0127] S14. Judge whether the concentration has decreased to the concentration threshold range of water. If yes, go to step S16; otherwise, go to step S15.

[0128] S15. Control the rotation speed of the first stirring impeller according to the concentration, and go to step S14.

[0129] S16. Enter the normal water inlet process and end the control of the first stirring impeller. In the embodiment where the stirring impeller is driven by a driving motor, the driving motor can be controlled to stop operating, that is, the first stirring impeller is driven to stop rotating. In the embodiment where the first stirring impeller is controlled by a first regulating valve, the first regulating valve can be kept at the current opening degree or controlled to be adjusted to the maximum opening degree.

[0130] S17. Let water in until the water inflow is reached, and stop the water inlet.

[0131] S18. Perform washing according to the washing mode.

[0132] S19. After the washing is completed, open the second outlet, and control the second water inlet to let water into the second cavity.

[0133] S20. The second concentration detection module monitors the concentration in the second cavity.

[0134] S21. The control module controls the rotation speed of the second stirring impeller according to the concentration.

[0135] S22. The foreign object sensor detects whether there is a foreign object in the second cavity. If so, go to step S23; otherwise, go to step S24.

[0136] S23. Increase the rotation speed of the second stirring impeller or give an alarm. Increase the rotation speed of the second stirring impeller to the maximum rotation speed. Go to step S22.

[0137] S24. Determine whether the concentration has decreased to the concentration threshold range of water. If so, go to step S26; otherwise, go to step S25.

[0138] S25. Control the rotation speed of the second stirring impeller according to the concentration, and go to step S24.

[0139] S26. Enter the normal water inlet process and end the control of the second stirring impeller.

[0140] Continue according to the subsequent washing program until the washing is completed. During the normal water inlet process, the second regulating valve can be kept at the current opening degree or the second regulating valve can be controlled to adjust to the maximum opening degree. In order to increase the water inlet speed and reduce the washing time, the first regulating valve can also be opened to the maximum opening degree.

[0141] This embodiment can achieve the dispensing of two dispensing substances.

[0142] In some embodiments, when there is no detergent in the first cavity 11 and there is fabric softener in the second cavity 12, the valve 131 can also be controlled to open, the second outlet 72 is closed, water enters through the second water inlet 62, the second stirring impeller 312 adjusts its rotation speed according to the concentration detected by the second concentration detection module 22, and the first stirring impeller 311 does not rotate or adjusts its rotation speed according to the concentration detected by the second concentration detection module 22 or according to the first concentration detection module 21, so as to further improve the efficiency of mixing the fabric softener and water evenly. Embodiment Three

[0143] As Figure 5 shown, in this embodiment, on the basis of Embodiment Two, the first outlet 71 is also set to be openable and closable. Specifically, a first outlet valve can be provided at the first outlet 71, and the opening or closing of the first outlet is realized through the first outlet valve.

[0144] When there is a placement object in one cavity and there is no placement object in the other cavity, the valve is controlled to open, the outlet corresponding to the cavity with the placement object is controlled to be closed, and the outlet corresponding to the cavity without the placement object is opened, so that the water inlet of the cavity with the placement object is mixed with the placement object and enters the cavity without the placement object through the valve for further mixing before being discharged from the outlet corresponding to the cavity without the placement object.

[0145] In some embodiments, the stirring impeller with the material to be dosed is controlled to rotate, while the stirring impeller without the material to be dosed is controlled not to rotate.

[0146] In some embodiments, both stirring impellers are controlled to rotate to further improve mixing uniformity.

[0147] In some embodiments, when both stirring impellers are controlled to rotate, the speed of the two stirring impellers is controlled according to the concentration monitored by the concentration detection module of the placed object. The speed of the stirring impeller corresponding to the cavity without the placed object is the same as or different from the speed of the stirring impeller corresponding to the cavity with the placed object.

[0148] In some embodiments, the rotation speeds of the two stirring impellers are controlled respectively according to the concentrations monitored by the two concentration detection modules.

[0149] Wherein, the rotation directions of the first stirring impeller and the second stirring impeller are the same direction or opposite direction.

[0150] When there is detergent in the first cavity 11 and there is no softener in the second cavity 12, the control valve 131 is opened, the first outlet 71 is closed, the second outlet 72 is opened, water is introduced into the first water inlet 61, the first stirring impeller 311 adjusts the speed according to the concentration detected by the first concentration detection module 21, and the second stirring impeller 312 does not rotate or adjusts the speed according to the concentration detected by the first concentration detection module 21 or the second concentration detection module 22.

[0151] When there is no detergent in the first cavity 11 and there is softener in the second cavity 12, the control valve 131 is opened, the first outlet 71 is opened, the second outlet 72 is closed, water is introduced into the second water inlet 62, and the second stirring impeller 312 adjusts the speed according to the concentration detected by the second concentration detection module 22, and the first stirring impeller 311 does not rotate or adjusts the speed according to the concentration detected by the second concentration detection module 22 or the first concentration detection module 21.

[0152] During the water inlet process, it is detected whether there are block-like foreign objects in the water injection box. When there are block-like foreign objects, the speed of the stirring impeller is controlled to increase or an alarm is sounded.

[0153] This embodiment can further improve the efficiency of mixing the input material and water evenly.

[0154] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions claimed by the present invention.

Claims

1. A washing device, comprising a water injection device and a control module, the water injection device comprising a water injection box body, wherein a feeding port, a water inlet and an outlet are formed in the water injection box body, and it is characterized in that, The water injection device comprises: A concentration detection module, which is located in the water injection box body, and is used to monitor the concentration in the water injection box body; A stirring impeller, which is rotatably disposed in the water injection box body; The control module is used to control the rotation speed of the stirring impeller according to the concentration; the rotation speed of the stirring impeller is positively correlated with the concentration.

2. The washing device according to claim 1, characterized in that The water filling box body is divided into a first cavity and a second cavity by a partition; a water filling box body corresponding to the first cavity is provided with a delivery port, a first water inlet and a first outlet, and a first concentration detection module and a first stirring impeller are arranged in the first cavity; a second water inlet and a second outlet are provided on the water filling box body corresponding to the second cavity, and a second concentration detection module and a second stirring impeller are arranged in the second cavity; a valve is arranged on the partition, and the valve is used to make the first cavity and the second cavity conduct or isolate.

3. The washing device according to claim 1, characterized in that, The concentration detection module is located on the inner wall of the water injection box and below the injection port.

4. The washing device according to claim 1, wherein The stirring impeller is driven by a driving motor, and the driving motor is used to control the rotation speed of the stirring impeller; or, the stirring impeller is rotatably connected to the water inlet, the stirring impeller has a water inlet chamber connected to the water inlet, the blades of the stirring impeller have injection holes, and the injection holes are connected to the water inlet chamber, and a regulating valve is provided on the water inlet or on a pipeline connected to the water inlet, and the regulating valve is used to control the rotation speed of the stirring impeller.

5. The washing device according to any one of claims 1-4, characterized in that, The water injection device includes a foreign matter detection module, and the foreign matter detection module is used to detect whether there is a block-shaped foreign matter in the water injection box body; The control module is used to control the rotation speed of the stirring impeller to increase or alarm when receiving the foreign matter detection signal from the foreign matter detection module.

6. A control method for a washing device according to claim 1, characterized in that, The control method is: Controlling water inlet into the water inlet; Monitoring the concentration in the water injection box; controlling the rotation speed of the stirring impeller according to the concentration; Wherein, the rotation speed of the stirring impeller is positively correlated with the concentration.

7. A control method for a washing device according to claim 2, characterized in that, The control method is: When the first type of material needs to be added during the washing process, the valve is controlled to be closed, and after the first type of material is added to the inlet, water is controlled to flow into the first water inlet, and the first concentration detection module monitors the concentration of the first cavity, and controls the rotation speed of the first stirring impeller according to the concentration; When the washing process needs to put the first type of objects and the second type of objects in sequence, the valve is controlled to be opened and the second outlet is closed. After the second type of objects are added to the inlet, the valve is controlled to be closed and the first type of objects are added to the inlet. When the first type of objects are put in, the first water inlet is controlled to allow water to flow in, the first concentration detection module monitors the concentration of the first cavity, and the speed of the first stirring impeller is controlled according to the concentration. When the second type of objects are put in, the second outlet is controlled to be opened, the second water inlet is controlled to allow water to flow in, the second concentration detection module monitors the concentration of the second cavity, and the speed of the second stirring impeller is controlled according to the concentration.

8. The control method of the washing device according to claim 7, wherein When there is a put in one cavity and there is no put in the other cavity, the valve is controlled to open, the outlet corresponding to the cavity with the put in is controlled to close, and the outlet corresponding to the cavity without the put in is controlled to open; The stirring impeller with the added objects is controlled to rotate, and the stirring impeller without the added objects is controlled not to rotate, or both stirring impellers are controlled to rotate.

9. The control method of the washing equipment according to claim 8, characterized in that: When both stirring impellers are controlled to rotate, the rotation speeds of the two stirring impellers are controlled according to the concentration monitored by the concentration detection module with the added material, or the rotation speeds of the two stirring impellers are respectively controlled according to the concentrations monitored by the two concentration detection modules, and the rotation directions of the first stirring impeller and the second stirring impeller are the same or opposite.

10. The control method of the washing device according to any one of claims 6-9, characterized in that, During the water inlet process, it is detected whether there are block-like foreign objects in the water injection box body. When there are block-like foreign objects, the rotation speed of the stirring impeller is controlled to increase or an alarm is sounded.

Images