Washing equipment and control method thereof

Abstract

The invention relates to the technical field of clothes treatment equipment, and provides washing equipment and a control method thereof.The washing equipment comprises an equipment body and a spraying device, the equipment body comprises an inner barrel and an outer barrel, the inner barrel is rotatably arranged in the outer barrel, the spraying device is arranged at the top of the inner wall of the outer barrel, and the spraying device comprises a booster pump and at least one spraying head; the nozzle is connected with the booster pump and at least partially located between the inner cylinder and the outer cylinder, and a water outlet of the nozzle is configured to spray water to the inner wall of the outer cylinder and / or the outer wall of the inner cylinder. High-pressure water is sprayed to the outer wall of the inner barrel through a booster pump to clean the outer wall of the inner barrel, and the water sprayed to the outer wall of the inner barrel rebounds to the top of the inner wall of the outer barrel under the high-pressure effect and flows down along the inner wall of the outer barrel to wash and take away stains; or the water outlet sprays water towards the inner wall of the outer barrel, the sprayed water can rebound to the outer wall of the inner barrel to wash the outer wall of the inner barrel, the inner barrel rotates in cooperation, all-directional cleaning of the outer wall of the inner barrel and the inner wall of the outer barrel is achieved, and the cleaning effect is improved.

Description

Technical Field

[0001] The present application belongs to the technical field of clothing processing equipment, and in particular, relates to a washing device and a control method thereof. Background Art

[0002] In the related art, during long-term use of washing equipment such as washing machines, stains are easily left on the inner wall of the outer drum and the inner wall of the outer drum. Existing cleaning methods include high-temperature hot water sterilization and machine detergent washing, but the cleaning effect is not good. Summary of the invention

[0003] The embodiment of the present application provides a washing device and a control method thereof to solve the problem that the cleaning effect of the inner and outer drums of the existing washing devices is poor.

[0004] In a first aspect, an embodiment of the present application provides a washing device, comprising:

[0005] The device body comprises an inner cylinder and an outer cylinder, wherein the inner cylinder is rotatably arranged in the outer cylinder;

[0006] A spray device is arranged at the top of the inner wall of the outer cylinder, and the spray device includes a booster pump and at least one nozzle, the nozzle is connected to the booster pump, the nozzle is at least partially located between the inner cylinder and the outer cylinder, and the water outlet of the nozzle is configured to spray water toward the inner wall of the outer cylinder and / or the outer wall of the inner cylinder.

[0007] In some embodiments of the present application, there are multiple nozzles, and the multiple nozzles are arranged at intervals along the axial direction of the outer cylinder.

[0008] In some embodiments of the present application, the spray device also includes a pressure valve, which is arranged at the water outlet. The pressure valve is suitable for switching from a closed state to an open state to open the water outlet when the water pressure in the nozzle reaches a preset threshold.

[0009] In some embodiments of the present application, the plurality of nozzles are connected via a first hose, and the first hose and the booster pump are connected via a second hose.

[0010] In some embodiments of the present application, the booster pump is fixedly connected to the middle portion of the first hose;

[0011] Alternatively, the first hose is provided with a plurality of mounting portions along its extending direction, and the booster pump is connected to the first hose via one of the mounting portions.

[0012] In some embodiments of the present application, the washing device further includes:

[0013] A turbidity sensor, the turbidity sensor is arranged at the bottom of the outer drum to detect turbidity information of the washing water;

[0014] The controller is electrically connected to the turbidity sensor and is configured to adjust the working parameters of the boost pump based on the turbidity information.

[0015] In some embodiments of the present application, the washing equipment includes a pre-wash valve, the spray device includes a door seal spray pipe, the pre-wash valve is suitable for being connected to a water supply device, and the door seal spray pipe is connected to the pre-wash valve for cleaning the door seal of the washing equipment.

[0016] In a second aspect, an embodiment of the present application further provides a control method for a washing device, which is applied to the washing device described in the above embodiment, and the control method includes:

[0017] After the main wash stage is finished, obtaining turbidity information of the washing water at the bottom of the outer drum;

[0018] Determine the turbidity interval range of the turbidity information;

[0019] Based on the turbidity interval range, determining a target operating parameter corresponding to the turbidity interval range;

[0020] The boost pump is controlled to operate according to the target operating parameters.

[0021] In some embodiments of the present application, in the main wash stage, the control method includes:

[0022] Obtaining the turbidity change rate of the washing water at the bottom of the outer drum;

[0023] Based on the turbidity change rate, the main wash time of the washing equipment is adjusted.

[0024] In some embodiments of the present application, the washing device is further provided with a drainage pump, and the drainage pump is used to discharge the water in the outer drum; before obtaining the turbidity information of the washing water at the bottom of the outer drum, the method further includes:

[0025] Obtaining the water level of the outer cylinder;

[0026] When the water level is greater than or equal to a preset water level, controlling the drainage pump to start;

[0027] When the water level is lower than the preset water level, the drainage pump is controlled to be turned off; wherein the preset water level is lower than the bottom height of the inner drum.

[0028] The washing device provided by the embodiment of the present application includes an inner drum and an outer drum, wherein the inner drum can be rotatably arranged in the outer drum, and a spray device is arranged at the top of the inner wall of the outer drum, and the spray device includes a booster pump and at least one nozzle, the nozzle is connected to the booster pump, the nozzle is at least partially located between the inner drum and the outer drum, and the water outlet of the nozzle is configured to spray water to the inner wall of the outer drum and / or the outer wall of the inner drum. The booster pump and the nozzle are used to spray high-pressure water to the outer wall of the inner drum to clean the outer wall of the inner drum, and the water sprayed to the outer wall of the inner drum rebounds to the top of the inner wall of the outer drum under the action of high pressure and flows down along the inner wall of the outer drum to flush the stains and take away the stains; or the water outlet sprays water toward the inner wall of the outer drum, and the sprayed water can rebound to the outer wall of the inner drum to flush the outer wall of the inner drum, and at the same time, the motor drives the inner drum to rotate in coordination with the inner drum during the spraying process to achieve full-directional cleaning of the outer wall of the inner drum and the inner wall of the outer drum, thereby improving the cleaning effect.

[0029] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application, and those skilled in the art can obtain other drawings based on these drawings without creative work.

[0031] In order to more completely understand the present application and its beneficial effects, the following description will be given in conjunction with the accompanying drawings. In the following description, the same reference numerals represent the same parts.

[0032] Figure 1 This is a front view of the washing device provided in an embodiment of the present application.

[0033] Figure 2 A top view of the washing device provided in an embodiment of the present application.

[0034] Figure 3 Schematic diagram of the control method of the washing machine provided in the embodiment of the present application Figure 1 .

[0035] Figure 4 Schematic diagram of the control method of the washing machine provided in the embodiment of the present application Figure 2 .

[0036] Figure 5 A result schematic diagram of the control device of the washing equipment provided in an embodiment of the present application.

[0037] Figure 6 A structural block diagram of an electronic device provided in an embodiment of the present application.

[0038] Reference numerals:

[0039] 100. Equipment body; 110. Inner cylinder; 120. Outer cylinder; 200. Spraying device; 210. Booster pump; 220. Spray head; 230. Second hose; 240. Mounting bracket; 300. Motor; 400. Turbidity sensor; 500. Drain pump; 600. Water supply device; 700. Suspension spring; 800. Pull rod. DETAILED DESCRIPTION

[0040] The following is a further detailed description of the implementation of the present application in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present application but cannot be used to limit the scope of the present application.

[0041] In the description of the embodiments of the present application, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the embodiments of the present application. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0042] In the description of the embodiments of the present application, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" 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 directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present application can be understood according to specific circumstances.

[0043] In the embodiments of the present application, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0044] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the embodiments of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0045] Studies have shown that a washing machine that has been used for three years may contain up to 700,000 types of bacteria. The large amount of residual dirt and bacteria and mold in the inner tub of the washing machine can cause great harm to the human body. In addition, using dirty water to wash clothes all the time will reduce the cleaning effect of the washing machine.

[0046] Stains mainly remain in the dead corners of the inner wall of the outer drum or the dead corners of the tripod. The cleaning methods that can be used include: ① 95℃ hot water, but it can only kill bacteria, not remove dirt and heavy metals, and high temperature will affect the service life of heat-intolerant parts in the machine, such as plastic pipes and rubber seals. ② High-speed water flushing, flushing speed 90~100rpm, water speed 0.3~0.4m / s<<10m / s, but there are dead corners, and the cleaning force is insufficient, and the cleaning effect is not obvious. ③ Machine detergent, but it will corrode the washing machine and cause safety hazards.

[0047] The present application provides a washing device and a control method thereof to solve the problem that the cleaning effect of the inner and outer drums 120 of the existing washing device is poor. Figure 1-6 Provide explanation.

[0048] According to the washing device of the embodiment of the present application, Figure 1 and Figure 2 As shown, the device includes a device body 100, a spray device 200 and a motor 300. The device body 100 includes an inner cylinder 110 and an outer cylinder 120. The inner cylinder 110 can be rotatably arranged in the outer cylinder 120; the spray device 200 is arranged at the top of the inner wall of the outer cylinder 120, and the spray device 200 includes a booster pump 210 and at least one nozzle 220. The nozzle 220 is connected to the booster pump 210, and the nozzle 220 is at least partially located between the inner cylinder 110 and the outer cylinder 120, and the water outlet of the nozzle 220 is configured to spray water to the inner wall of the outer cylinder 120 and / or the outer wall of the inner cylinder 110.

[0049] It can be understood that the washing device can be a drum washing machine, a washer-dryer or a washing-drying set, etc. Taking the drum washing machine as an example, illustratively, the device body of the drum washing machine includes an inner drum 110 and an outer drum 120, and the outer drum 120 is sleeved on the outside of the inner drum 110, and the inner drum 110 and the outer drum 120 are coaxially arranged, and the inner drum 110 is used to accommodate clothes to be washed.

[0050] The booster pump 210 is connected to the nozzle 220 to increase the water pressure, ensuring that the water can be sprayed out from the water outlet of the nozzle 220 with sufficient force to ensure the cleaning effect. The speed of the booster pump 210 can be adjusted to adjust the water pressure. The nozzle 220 is installed at the water outlet of the booster pump 210 and is located at the top of the inner wall of the outer cylinder 120.

[0051] In an optional embodiment, the water outlet of the nozzle 220 faces the outer wall of the inner drum 110, and the high-pressure water jetted from the nozzle 220 outlet can be directly sprayed onto the outer wall of the inner drum 110 for cleaning. The motor 300 is connected to the inner drum 110, and can drive the inner drum 110 to rotate during the laundry process to achieve laundry washing. In the pollution-free cleaning mode, the motor 300 can also be used to drive the inner drum 110 to rotate at a relatively low speed to ensure that the high-pressure water jetted from the nozzle 220 can clean various positions of the outer wall of the inner drum 110.

[0052] When the washing machine enters the pollution-free cleaning mode, the booster pump 210 starts to spray water at high pressure through the nozzle 220 to the outer wall of the inner drum 110 to clean the outer wall of the inner drum 110. After the high-pressure water contacts the outer wall of the inner drum 110, it will rebound and hit the top of the inner wall of the outer drum 120, and stay along the inner wall of the outer drum 120, flushing the stains on the inner wall of the outer drum 120 to remove the stains. At the same time, the motor 300 drives the inner drum 110 to rotate, ensuring that every part of the outer wall of the inner drum 110 can be sprayed by the high-pressure water, thereby improving the cleaning effect.

[0053] In another optional embodiment, the water outlet of the nozzle 220 is toward the inner wall of the outer cylinder 120, and the high-pressure water flow ejected from the water outlet of the nozzle 220 can be directly sprayed onto the inner wall of the outer cylinder 120 for cleaning, and the high-pressure water flow can rebound or fall under the action of gravity and clean the outer wall of the inner cylinder 110, and cooperate with the rotation of the inner cylinder 110 to clean each part of the outer wall of the inner cylinder 110, thereby improving the cleaning effect.

[0054] Exemplarily, the number of the nozzles 220 may be single or multiple, depending on the size of the washing machine and the cleaning requirements.

[0055] In an alternative embodiment, reference Figure 1 and Figure 2As shown, the number of the nozzles 220 may be multiple (eg, 3-5), and the multiple nozzles 220 are arranged at intervals along the axial direction of the outer cylinder 120 .

[0056] By arranging a plurality of nozzles 220 at intervals along the axial direction of the outer cylinder 120, it is ensured that the high-pressure water flow can be evenly sprayed to every part of the outer wall of the inner cylinder 110, thereby reducing cleaning dead corners and improving cleaning uniformity; and because the nozzles 220 are distributed at different positions, the rebounding water flow can impact the inner wall of the outer cylinder 120 from different positions and angles, thereby enhancing the flushing force and helping to remove more stubborn stains.

[0057] In an optional embodiment, the angle of the nozzle 220 is adjustable. For example, the nozzle 220 can be installed on a rotating shaft, and the spray angle of the nozzle 220 can be adjusted by rotating the rotating shaft to ensure that the water column can effectively rebound to the inner wall of the outer cylinder 120. The spray angle of each nozzle 220 can be the same or different. For example, the spray directions of adjacent nozzles 220 are symmetrically arranged about the central axis of the outer cylinder 120 to ensure that the water flow on both sides is evenly distributed.

[0058] In an optional embodiment, the spray device 200 further includes a pressure valve, which is disposed at the water outlet. The pressure valve is suitable for switching from a closed state to an open state to open the water outlet when the water pressure in the spray head 220 reaches a preset threshold.

[0059] It can be understood that in this embodiment, the function of the pressure valve is to control the opening and closing of the water outlet of the nozzle 220. The pressure valve can adopt a conventional pressure relief valve design, and elastic parts such as springs or diaphragms can be arranged inside to open the water outlet when the water pressure reaches a certain level.

[0060] Specifically, the water pressure can be adjusted by adjusting the rotation speed of the booster pump 210. Due to the pressure provided by the booster pump 210, the pressure at the nozzle 220 closer to the booster pump 210 is greater. As the water flows out from the nozzle 220, the pressure gradually decreases along the way, so the pressure at the nozzle 220 far away from the booster pump 210 is relatively small. By accurately adjusting the pressure of the booster pump 210, the number of opening water outlets of the nozzle 220 can be adjusted, thereby adjusting the distribution of the water flow and saving water resources; and the nozzle 220 can be automatically opened and closed by water pressure without the need for additional circuit control.

[0061] Optionally, the opening pressures of the pressure valves corresponding to different nozzles 220 may be the same or different, and different opening pressures may be set according to different nozzle 220 positions and cleaning requirements. For example, some dead corners where a lot of stains often remain may require a higher water flow intensity to clean them. By setting different opening pressures, the water flow can be distributed among different nozzles 220, thereby optimizing the cleaning effect.

[0062] In an alternative embodiment, reference Figure 1 and Figure 2 As shown, the plurality of nozzles 220 are connected by a first hose, and the first hose and the booster pump 210 are connected by a second hose 230. The hose has good flexibility and elasticity, which can reduce the impact of manufacturing deviations on assembly and simplify the assembly process of the system.

[0063] Exemplarily, a mounting bracket 240 is provided on the inner wall of the outer cylinder 120 along the axis thereof, and the first hose is mounted on the mounting bracket 240 along the axis for fixing.

[0064] In an optional embodiment, the booster pump 210 is fixedly connected to the middle part of the first hose. When the number of nozzles 220 to be opened is adjusted by the booster pump 210, it can be ensured that the middle nozzle 220 is opened first, followed by the other nozzles 220 away from the booster pump 210. Since the middle nozzle 220 is opened first, the water flow can quickly cover the main area of ​​the outer wall of the inner cylinder 110, thereby improving the decontamination efficiency and ensuring that the water flow of the nozzle 220 can better and evenly cover each part of the outer wall of the inner cylinder 110.

[0065] In another optional embodiment, the first hose is provided with a plurality of mounting portions along its extension direction, and the booster pump 210 is connected to the first hose through one of the mounting portions. The position of the connection point determines which nozzle 220 the water flow of the booster pump 210 reaches first, thereby controlling the number and position of the nozzles 220 opened during the pollution-free cleaning process, and can be flexibly adjusted according to actual cleaning needs to achieve refined cleaning, thereby further improving the cleaning effect.

[0066] In an alternative embodiment, reference Figure 1 and Figure 2 As shown, the washing device also includes a turbidity sensor 400 and a controller. The turbidity sensor 400 is arranged at the bottom of the outer drum 120 to detect the turbidity information of the washing water; the controller is electrically connected to the turbidity sensor 400 and is configured to adjust the working parameters of the boost pump 210 based on the turbidity information.

[0067] It is understandable that the turbidity sensor 400 can adopt optical principles to determine the turbidity information of water by comparing the intensity of incident light and reflected light, so as to facilitate stopping when the clothes are clean. It can also determine the turbidity of the inner drum 110 after the clothes are washed, and determine the intensity of water flow and the speed of rotation required for cleaning based on the turbidity information, so as to adjust the working parameters of the boost pump 210 and realize the adjustment of the cleaning intensity.

[0068] For example, if the turbidity is high, it means there are more stains, and the controller can increase the speed of the booster pump 210 and extend the working time to improve the cleaning effect. If the turbidity is low, it means there are fewer stains, and the controller can reduce the speed of the booster pump 210 and shorten the working time to save energy.

[0069] In an optional embodiment, the washing equipment includes a pre-wash valve, the spray device 200 includes a door seal spray pipe, the pre-wash valve is suitable for being connected to the water supply device 600, and the door seal spray pipe is connected to the pre-wash valve for cleaning the door seal of the washing equipment.

[0070] It is understandable that existing washing machines generally come with a pre-wash valve, a main wash valve, a softening valve, and a condensing valve. In order to save valve configuration, the door seal spray and pre-wash can share a pre-wash valve. While the pre-wash water is taking in water, a stream of water will be separated through the door seal spray pipe to flush the door seal glass.

[0071] A separate pipeline is designed to connect the booster pump 210. When the booster pump 210 is controlled to be closed, the valve will be closed. When the control is opened, the booster spray pump speed, that is, the water flow speed and pressure, will be intelligently adjusted according to actual cleaning needs to achieve different pollution-free cleaning intensities.

[0072] The water supply device 600 may be a water box provided by the washing machine, or may be an external water source, which may be determined according to the actual usage scenario, and this embodiment does not specifically limit this.

[0073] In an alternative embodiment, reference Figure 1 and Figure 2 As shown, a suspension spring 700 and a pull rod 800 are connected between the inner cylinder 110 and the outer cylinder 120 to reduce vibration during the rotation of the inner cylinder 110 and prevent the inner cylinder 110 from colliding with the outer cylinder 120 due to excessive vibration amplitude of the inner cylinder 110 .

[0074] The washing device provided in the embodiment of the present application includes an equipment body 100, a spray device 200 and a motor 300. The equipment body 100 includes an inner drum 110 and an outer drum 120. The inner drum 110 is rotatably arranged in the outer drum 120. The spray device 200 is arranged at the top of the inner wall of the outer drum 120. The spray device 200 includes a booster pump 210 and at least one nozzle 220. The nozzle 220 is connected to the booster pump 210. The nozzle 220 is at least partially located between the inner drum 110 and the outer drum 120, and the water outlet of the nozzle 220 is configured to spray water toward the inner wall of the outer drum 120 and / or the outer wall of the inner drum 110. The booster pump 210 and the nozzle 220 are used to spray high-pressure water onto the outer wall of the inner cylinder 110 to clean the outer wall of the inner cylinder 110, and the water sprayed onto the outer wall of the inner cylinder 110 rebounds to the top of the inner wall of the outer cylinder 120 under the action of high pressure and flows down along the inner wall of the outer cylinder 120 to flush the stains and take away the stains; or the water outlet sprays water toward the inner wall of the outer cylinder 120, and the sprayed water can rebound to the outer wall of the inner cylinder 110 to flush the outer wall of the inner cylinder 110. At the same time, the inner cylinder 110 is driven to rotate during the spraying process, so that the outer wall of the inner cylinder 110 and the inner wall of the outer cylinder 120 are cleaned in all directions, thereby improving the cleaning effect.

[0075] In a second aspect, the present application also provides a control method for a washing device, which is applied to the washing device of the above embodiment, referring to Figure 3 and Figure 4 As shown, the control method includes:

[0076] S301: After the main wash phase is completed, turbidity information of the washing water at the bottom of the outer drum is obtained;

[0077] S302: Determine the turbidity interval range of the turbidity information;

[0078] S303: Based on the turbidity interval range, determine the target operating parameter corresponding to the turbidity interval range;

[0079] S304: Control the booster pump to operate according to target operating parameters.

[0080] In this embodiment, after the washing machine completes the main wash stage, the turbidity sensor starts working to detect the turbidity information of the washing water at the bottom of the outer drum. The turbidity information reflects the suspended particles and stain content of the washing water. The turbidity range can be set according to the cleanliness of the washing water, such as light stains, moderate stains, and heavy stains. Based on the turbidity range, the system determines the target operating parameters corresponding to the turbidity range. The target operating parameters may include but are not limited to the booster pump speed and the booster pump working time. For example, if the turbidity is high, it means that there are more stains, and the water flow intensity and speed can be increased to improve the cleaning effect. If the turbidity is low, it means that there are fewer stains, and the water flow intensity and speed can be reduced to save energy.

[0081] For example, reference Figure 4 As shown, when the turbidity information Tb is detected to be less than the first threshold value Tb1, it means that the stains are small, and the spray device can be directly drained and subsequently dehydrated without starting; when the turbidity information Tb is detected to be greater than the first threshold value Tb1 and less than the second threshold value Tb2, the booster pump can be controlled to run at the R1 speed for time t1 and then end; when the turbidity information Tb is detected to be greater than the second threshold value Tb2 and less than the third threshold value Tb3, the booster pump can be controlled to run at the R2 speed for time t2 and then end; when the turbidity information Tb is detected to be greater than the third threshold value Tb3, the booster pump can be controlled to run at the R3 speed for time t3 and then end. Wherein Tb3>Tb2>Tb1, R3>R2>R1, t3>t2>t1.

[0082] In an optional embodiment, in the main wash stage, the control method includes: obtaining the turbidity change rate of the washing water at the bottom of the outer drum; and adjusting the main wash time of the washing equipment based on the turbidity change rate.

[0083] Exemplarily, when the user has not turned on the dirt-free wash function, the main wash stage can be directly performed for T1+T2 time. After turning on the dirt-free wash function, the main wash is performed for T1 time first. When the turbidity change rate v<v1 is detected, it means that there are fewer stains, and the main wash is ended directly and the water is drained. When the turbidity change rate v>v1 is detected, the main wash is continued for T2 time, and then the turbidity change rate of the washing water is continued to be detected. This can be performed several times in this way.

[0084] By real-time monitoring of the turbidity change rate, the system can dynamically adjust the main wash time to accommodate clothes with different degrees of soiling, which can improve the washing effect while reducing unnecessary washing time and saving energy.

[0085] In an optional embodiment, the washing device is further provided with a drainage pump, which is used to drain the water in the outer drum; before obtaining the turbidity information of the washing water at the bottom of the outer drum, the method further includes: obtaining the water level of the outer drum; when the water level is greater than or equal to the preset water level, controlling the drainage pump to start; when the water level is less than the preset water level, controlling the drainage pump to shut down; wherein the preset water level is lower than the bottom height of the inner drum. In this way, it can be ensured that the clothes in the inner drum will not be contacted by the sewage in the outer drum, and the sewage in the outer drum is prevented from entering the inner drum, thereby avoiding cross contamination, maintaining the hygiene of the washing process, and improving the washing effect.

[0086] Optionally, refer to Figure 4 As shown, the user can choose whether to turn on the dirt-free washing function on the control panel of the washing machine. If the dirt-free washing function is turned on, the washing time will be adjusted according to the turbidity rising rate information during the washing process, and the spray device will be controlled based on the turbidity information to perform dirt-free spraying on the inner and outer drums after the washing is completed and the water is drained, so as to clean the inner and outer drums.

[0087] After the main wash is completed, the actual turbidity Tb will be detected at the beginning, and the booster pump (variable frequency pump) speed R and running time t will be matched according to the value of Tb. The higher the turbidity, the higher the matching variable frequency pump speed and the longer the running time, which also means the better the pollution-free cleaning effect.

[0088] When performing turbidity-based intelligent pollution-free cleaning, it is necessary to determine in real time whether the water level WL is higher than the preset water level (sewage-free level) WL1. WL1 can be about 1 cm below the inner cylinder to ensure that the sewage after spraying the inner and outer cylinders will not be touched by the inner cylinder. When the water level is higher than WL1, the drainage pump will be turned on to lower the water level to achieve the best pollution-free effect.

[0089] The control method of the washing equipment of this embodiment discharges sewage in real time after washing, inputs clean water to flush the inner and outer drums, maintains the water balance in the drum, and rotates and cuts the water flow based on the ideal water level control (water inlet or outlet), and flushes the inner wall of the outer drum and the outer wall of the inner drum back and forth. The high-pressure water gun spray control based on the booster pump strengthens the water supply flow rate and water flow pressure of the household self-contained water, and the fixed-point spraying based on the multi-section hose and the nozzle is combined with the turbidity information to perform intelligent spray cleaning without dead angles under low-speed rotation. It can also realize the intelligent adjustment of the washing time and the pollution-free intelligent washing time based on the turbidity information, which greatly improves the cleaning effect of the inner and outer drums.

[0090] In a third aspect, the present application also provides a control device for a washing device, which is applied to the washing device of the above embodiment, referring to Figure 5 As shown, the control device includes:

[0091] The acquisition module 501 is used to acquire the turbidity information of the washing water at the bottom of the outer drum after the main washing stage is completed;

[0092] A determination module 502, used to determine the turbidity interval range of the turbidity information;

[0093] A determination module 503, for determining a target operating parameter corresponding to the turbidity interval range based on the turbidity interval range;

[0094] The control module 504 is used to control the booster pump to operate according to target working parameters.

[0095] Figure 6 An example of a physical structure diagram of an electronic device is shown in FIG. Figure 6As shown, the electronic device may include: a processor 601 (processor), a communication interface 602 (Communications Interface), a memory 603 (memory) and a bus 604, wherein the processor 601, the communication interface 602, and the memory 603 communicate with each other through the communication bus 604. The processor 601 may call the logic instructions in the memory 603 to execute the steps of the control method of the washer-dryer.

[0096] In addition, the logic instructions in the above-mentioned memory 603 can be implemented in the form of a software functional unit and can be stored in a computer-readable storage medium when it is sold or used as an independent product. Based on such an understanding, the technical solution of the present application can be embodied in the form of a software product, which is stored in a storage medium, including a number of instructions to enable a computer device (which can be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the various embodiments of the present application. The aforementioned storage medium includes: a U disk, a mobile hard disk, a read-only memory 603 (ROM, Read-Only Memory), a random access memory 603 (RAM, Random Access Memory), a disk or an optical disk, and other media that can store program codes.

[0097] On the other hand, an embodiment of the present application also provides a computer program product, which includes a computer program stored on a computer-readable storage medium, and the computer program includes program instructions. When the program instructions are executed by the computer, the computer can execute the control method of the washer-dryer provided by the above-mentioned method embodiments.

[0098] On the other hand, an embodiment of the present application further provides a computer-readable storage medium having a computer program stored thereon, which, when executed by the processor 601, is implemented to execute the control method of the washer-dryer provided in the above-mentioned embodiments.

[0099] Computer-readable storage media can be any available media or data storage devices that can be accessed by the processor, including but not limited to magnetic storage (such as floppy disks, hard disks, magnetic tapes, magneto-optical disks (MO), etc.), optical storage (such as CD, DVD, BD, HVD, etc.), and semiconductor storage (such as ROM, EPROM, EEPROM, non-volatile memory (NAND FLASH), solid-state drive (SSD)), etc.

[0100] The device embodiments described above are merely illustrative, wherein the units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, i.e., they may be located in one place, or they may be distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the scheme of this embodiment. Those of ordinary skill in the art may understand and implement it without creative effort.

[0101] Through the description of the above implementation methods, those skilled in the art can clearly understand that each implementation method can be implemented by means of software plus a necessary general hardware platform, and of course, it can also be implemented by hardware. Based on this understanding, the above technical solution is essentially or the part that contributes to the prior art can be embodied in the form of a software product, and the computer software product can be stored in a computer-readable storage medium, such as ROM / RAM, a disk, an optical disk, etc., including a number of instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to execute the methods of each embodiment or some parts of the embodiment.

[0102] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0103] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A washing device, characterized in that: include: The device body comprises an inner cylinder and an outer cylinder, wherein the inner cylinder is rotatably arranged in the outer cylinder; A spray device is arranged at the top of the inner wall of the outer cylinder, and the spray device includes a booster pump and at least one nozzle, the nozzle is connected to the booster pump, the nozzle is at least partially located between the inner cylinder and the outer cylinder, and the water outlet of the nozzle is configured to spray water toward the inner wall of the outer cylinder and / or the outer wall of the inner cylinder.

2. The washing device according to claim 1, characterized in that: There are multiple nozzles, and the multiple nozzles are spaced apart along the axial direction of the outer cylinder.

3. The washing device according to claim 1, characterized in that: The spray device also includes a pressure valve, which is arranged at the water outlet. The pressure valve is suitable for switching from a closed state to an open state when the water pressure in the spray head reaches a preset threshold value to open the water outlet.

4. The washing device according to claim 1, characterized in that: The plurality of nozzles are connected via a first hose, and the first hose and the booster pump are connected via a second hose.

5. The washing device according to claim 4, characterized in that: The boost pump is fixedly connected to the middle part of the first hose; Alternatively, the first hose is provided with a plurality of mounting portions along its extending direction, and the booster pump is connected to the first hose via one of the mounting portions.

6. The washing device according to claim 1, characterized in that: The washing device also includes: A turbidity sensor, the turbidity sensor is arranged at the bottom of the outer drum to detect turbidity information of the washing water; The controller is electrically connected to the turbidity sensor and is configured to adjust the working parameters of the boost pump based on the turbidity information.

7. The washing device according to claim 1, characterized in that: The washing device comprises a pre-wash valve, the spray device comprises a door seal spray pipe, the pre-wash valve is suitable for being connected to a water supply device, and the door seal spray pipe is connected to the pre-wash valve for cleaning the door seal of the washing device.

8. A method for controlling a washing device, characterized in that: Applied to the washing device according to any one of claims 1 to 7, the control method comprises: After the main wash stage is finished, obtaining turbidity information of the washing water at the bottom of the outer drum; Determine the turbidity interval range of the turbidity information; Based on the turbidity interval range, determining a target operating parameter corresponding to the turbidity interval range; The boost pump is controlled to operate according to the target operating parameters.

9. The control method of the washing equipment according to claim 8, characterized in that: In the main wash stage, the control method includes: Obtaining the turbidity change rate of the washing water at the bottom of the outer drum; Based on the turbidity change rate, the main wash time of the washing equipment is adjusted.

10. The control method of washing equipment according to claim 8, characterized in that: The washing device is further provided with a drainage pump, and the drainage pump is used to discharge the water in the outer tub; before obtaining the turbidity information of the washing water at the bottom of the outer tub, the method further includes: Obtaining the water level of the outer cylinder; When the water level is greater than or equal to a preset water level, controlling the drainage pump to start; When the water level is lower than the preset water level, the drainage pump is controlled to be turned off; wherein the preset water level is lower than the bottom height of the inner drum.

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