Washing device and control method and apparatus therefor, and storage medium

Abstract

A washing device and a control method and apparatus therefor, and a storage medium. The washing device comprises a washing chamber, a filter screen and a centrifugal electric motor, wherein the filter screen is used for filtering washing water in the washing chamber, and the centrifugal electric motor is used for controlling the filter screen to rotate. The control method comprises: when a washing device is operating in a washing program, acquiring water quality information of washing water at intervals of a first preset duration; on the basis of the water quality information determining target operating parameters of the filter screen; and on the basis of the target operation parameters controlling the centrifugal electric motor, so as to control the filter screen to rotate and filter by means of the centrifugal electric motor.

Description

Washing equipment and its control methods and devices, storage media

[0001] Cross-references to related applications

[0002] This application claims priority to Chinese Patent Application No. 202412000228.7, filed on December 31, 2024, entitled "Washing Equipment and Control Method and Apparatus Thereof, Storage Medium", the entire contents of which are incorporated herein by reference. Technical Field

[0003] This disclosure relates to the field of home appliance control technology, and in particular to a washing device and its control method and apparatus, and a storage medium. Background Technology

[0004] A dishwasher is a home appliance that can improve the quality of life. Dishwashers are usually equipped with a filter that can filter out contaminants in the washing water and improve the washing effect.

[0005] The filters in related technologies are fixed and are easily clogged by contaminants during use, which seriously affects the filtration effect and requires frequent cleaning and maintenance by users, increasing the user's burden and thus reducing the user experience.

[0006] Public content

[0007] This disclosure aims to at least partially address one of the technical problems in the related art. Therefore, the first objective of this disclosure is to provide a control method for a washing device that controls the rotation of the filter screen according to water quality, adjusting the filter screen's filtration effect and greatly improving the user experience.

[0008] The second objective of this disclosure is to provide a computer-readable storage medium.

[0009] The third objective of this disclosure is to provide a control device for a washing machine.

[0010] The fourth objective of this disclosure is to provide a washing device.

[0011] To achieve the above objectives, a first aspect of this disclosure provides a control method for a washing device. The washing device includes a washing chamber, a filter screen, and a centrifugal motor. The filter screen is used to filter the washing water in the washing chamber, and the centrifugal motor is used to control the rotation of the filter screen. The method includes: acquiring water quality information of the washing water every first preset time interval when the washing device is in a washing program; determining target operating parameters of the filter screen based on the water quality information; and controlling the centrifugal motor based on the target operating parameters to control the rotation of the filter screen for filtration.

[0012] The control method of the washing equipment in this embodiment first determines that the washing equipment is in a washing program, and then acquires the water quality information of the washing water at a first preset time interval. Based on the water quality information, the target operating parameters of the filter are determined. The centrifugal motor is used to control the rotation of the filter. By controlling the centrifugal motor according to the target operating parameters, the filter can rotate and filter according to the target operating parameters. Thus, the washing equipment in this embodiment can control the rotation of the filter according to the water quality, adjust the filtration effect of the filter, and greatly improve the user experience.

[0013] In some embodiments of this disclosure, after controlling the centrifugal motor according to the target operating parameters, the method further includes: obtaining the actual operating parameters of the filter screen; and performing PID (Proportional-Integral-Derivative) control on the centrifugal motor according to the actual operating parameters and the target operating parameters.

[0014] In some embodiments of this disclosure, the method further includes: obtaining basic operating parameters of the filter screen; and controlling the centrifugal motor according to the basic operating parameters when it is determined from the water quality information that the washing water meets preset conditions.

[0015] In some embodiments of this disclosure, the water quality information includes water turbidity value, the target operating parameter includes target rotational speed, and the basic operating parameter includes basic rotational speed.

[0016] In some embodiments of this disclosure, if the turbidity value of the washing water remains below a preset turbidity value for a second preset duration, then the washing water is determined to meet the preset condition.

[0017] In some embodiments of this disclosure, the filter screen has a multi-layer filter screen structure, wherein the diameter of the filter pores in each layer of the filter screen structure is different.

[0018] In some embodiments of this disclosure, the washing device includes a plurality of centrifugal motors, which are configured one-to-one with the multi-layer filter structure to drive each layer of filter structure to rotate and filter.

[0019] To achieve the above objectives, a second aspect of this disclosure provides a computer-readable storage medium having a control program for a washing device thereon, which, when executed by a processor, implements the control method for the washing device described in any of the above embodiments.

[0020] The computer-readable storage medium of this disclosure executes a control program for a washing device stored thereon via a processor, which can control the rotation of the filter screen according to the water quality and adjust the filtration effect of the filter screen, greatly improving the user experience.

[0021] To achieve the above objectives, a third aspect of this disclosure provides a control device for a washing machine. The washing machine includes a washing chamber, a filter screen, and a centrifugal motor. The filter screen is used to filter the washing water in the washing chamber, and the centrifugal motor is used to control the rotation of the filter screen. The device includes: an acquisition module, used to acquire water quality information of the washing water at first preset intervals when the washing machine is in a washing program; a determination module, used to determine target operating parameters of the filter screen based on the water quality information; and a control module, used to control the centrifugal motor based on the target operating parameters, so as to control the rotation of the filter screen for filtration via the centrifugal motor.

[0022] The control device of the washing equipment in this embodiment includes an acquisition module, a determination module, and a control module. First, when the washing equipment is in the washing program, the acquisition module acquires the water quality information of the washing water at first preset time intervals, so that the determination module can determine the target operating parameters of the filter screen based on the water quality information. The centrifugal motor is used to control the rotation of the filter screen. The control module then controls the centrifugal motor according to the target operating parameters, so that the filter screen rotates and filters according to the target operating parameters. Thus, the washing equipment in this embodiment can control the rotation of the filter screen according to the water quality, adjust the filtration effect of the filter screen, and greatly improve the user experience.

[0023] To achieve the above objectives, a fourth aspect of this disclosure provides a washing apparatus that includes a control device for the washing apparatus described in the above embodiments.

[0024] The washing equipment of this disclosure embodiment, through the control device of the washing equipment of the above embodiment, can control the rotation of the filter screen according to the water quality, adjust the filtration effect of the filter screen, and greatly improve the user experience.

[0025] Additional aspects and advantages of this disclosure will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this disclosure. Attached Figure Description

[0026] The above and / or additional aspects and advantages of this disclosure will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0027] Figure 1 is a schematic diagram of the structure of a washing device in one embodiment of the present disclosure;

[0028] Figure 2 is a flowchart of a control method for a washing device according to an embodiment of the present disclosure;

[0029] Figure 3 is a flowchart of a control method for a washing device according to another embodiment of this disclosure;

[0030] Figure 4 is a flowchart of a control method for a washing device in a specific embodiment of this disclosure;

[0031] Figure 5 is a block diagram of the control device of the washing equipment in an embodiment of this disclosure;

[0032] Figure 6 is a block diagram of the washing device in an embodiment of this disclosure. Detailed Implementation

[0033] Embodiments of this disclosure are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this disclosure, and should not be construed as limiting this disclosure.

[0034] The washing equipment, control method and apparatus, and storage medium of the present disclosure are described below with reference to the accompanying drawings.

[0035] Before introducing the control method and apparatus of the washing equipment disclosed herein, the washing equipment of this disclosure will be described accordingly. As shown in Figure 1, Figure 1 is a structural schematic diagram of the washing equipment in one embodiment of this disclosure. Taking a dishwasher as an example, the washing equipment includes a washing chamber 104, a filter screen 103, and a centrifugal motor 102. It also includes a washing pump 101, a turbidity sensor 106, and a drain pump 105. When the dishwasher starts working, washing water is first supplied to the washing chamber 104. The washing pump 101 can control the circulation of the washing water in the washing chamber 104, the filter screen 103, and the spray arm. That is, after the washing water washes the clothes to be washed in the washing chamber 104, it can be filtered through the filter screen 103, and then pumped by the washing pump 101 to the spray arm. The spray arm pressurizes and sprays the clothes to be washed in the washing chamber 104 for cleaning. During the washing process, the turbidity value of the washing water can be detected by the turbidity sensor 106, and the rotation of the filter screen 103 can be controlled by the centrifugal motor 102 to improve the filtration effect of the filter screen 103. After washing is completed, the washing water in the washing chamber 104 can be drained by the drain pump 105. It should be noted that in this embodiment, the filter screen 103 can be a circular stainless steel filter screen with a diameter of 20 cm and a thickness of 0.5 cm, and the mesh size can be 0.5 mm; the centrifugal motor 102 can be a brushless DC motor with a rated voltage of 12 volts, a rated power of 15 watts, and a maximum speed of 2500 rpm; the measurement range of the turbidity sensor 106 can be 0-1000 NTU (Nephelometric Turbidity Unit), and the measurement accuracy is ±2%.

[0036] Figure 2 is a flowchart of a control method for a washing device according to an embodiment of the present disclosure.

[0037] Based on the above-mentioned washing equipment, this disclosure proposes a control method for the washing equipment, as shown in Figure 2. The control method for the washing equipment includes the following steps:

[0038] S10: When the washing equipment is in the washing program, the water quality information of the washing water is obtained every first preset time interval.

[0039] Specifically, the working procedure of the washing equipment may include a pre-wash procedure, a main wash procedure, a rinsing procedure, and a drying procedure. The pre-wash procedure is a rough rinse of the clothes to be washed, mainly to remove easily rinsed contaminants. The main wash and rinsing procedures are for a more thorough cleaning of the clothes, while the drying procedure is for drying the washed clothes. The washing procedure in this embodiment mainly includes a main wash procedure and a rinsing procedure. In these procedures, water quality information of the washing water can be acquired at first preset intervals. Optionally, the first preset interval can be 4 seconds, 5 seconds, 6 seconds, etc. The water quality information may include the turbidity value of the washing water. Of course, other information about the washing water, such as total dissolved solids, can also be used to represent the water quality information; no specific limitation is made here.

[0040] S20 determines the target operating parameters of the filter screen based on water quality information.

[0041] S30 controls the centrifugal motor according to the target operating parameters to make the filter screen rotate for filtration.

[0042] Specifically, after obtaining the water quality information of the washing water, the target operating parameters of the filter can be determined based on this information. It can be understood that the filtration effect of the filter can be determined through the water quality information, and the target operating parameters can be determined based on the filtration effect. These target operating parameters can then be used to control the centrifugal motor to rotate the filter, thereby improving its filtration effect. In this embodiment, the target operating parameter can be the target rotation speed of the filter; however, in other embodiments, it could be the target number of rotations, etc., which is not specifically limited here. It should be noted that the higher the turbidity of the washing water, the higher the rotation speed of the filter, or the more rotations the filter needs to make.

[0043] The method uses water quality information (turbidity) as the reference and the target operating parameter (rotation speed) as the target rotation speed for explanation. Specifically, the turbidity value can be input into the calculation model, which will then calculate the target rotation speed. Optionally, the calculation model is: ω=k*T+ω0, where ω represents the target rotation speed, T represents the turbidity value, k represents the model coefficient (determined from experimental data), and ω0 represents the base rotation speed (determined from experimental data) to ensure the minimum filtration effect of the filter. Optionally, ω0 is 60 revolutions per minute, and k is 0.5.

[0044] More specifically, this embodiment can convert the target operating parameters into a PWM (Pulse Width Modulation) duty cycle through a conversion model, and control the centrifugal motor through the PWM duty cycle. The specific conversion model is: ω = K m *D*V s / R, where ω represents the target rotational speed, K m V represents the speed constant of the centrifugal motor, D represents the PWM duty cycle (0≤D≤1), and V s R represents the power supply voltage of the centrifugal motor, and R represents the winding resistance of the centrifugal motor.

[0045] In some embodiments of this disclosure, as shown in FIG3, after controlling the centrifugal motor according to the target operating parameters, the method further includes:

[0046] S301, obtain the actual operating parameters of the filter.

[0047] S302 performs PID control on the centrifugal motor based on actual operating parameters and target operating parameters.

[0048] Specifically, after controlling the centrifugal motor according to the target operating parameters, the filter cannot be controlled to operate at the target operating parameters 100% due to losses and other reasons. Therefore, this embodiment also obtains the actual operating parameters of the filter, and then controls the centrifugal motor according to the actual operating parameters and the target operating parameters so that the rotation speed of the filter can gradually and smoothly approach the target operating parameters.

[0049] More specifically, through the PID model D(t) = K p *e(t)+K i The PWM duty cycle of the centrifugal motor is calculated using *∫e(t)dt+KD*de(t) / dt. Then, the centrifugal motor is controlled based on this PWM duty cycle to control the filter screen to rotate at the target speed. In this embodiment's PID model, D(t) represents the PWM duty cycle at time t, e(t) represents the difference between the target operating parameters and the actual operating parameters, and K... p K represents the proportional gain. i K represents the integral gain, and KD represents the differential gain. Optionally, in this embodiment, K... p Set it to 0.8, K i Set it to 0.2, and KD to 0.1.

[0050] In some embodiments of this disclosure, the control method for the washing equipment further includes: acquiring basic operating parameters of the filter screen; and controlling the centrifugal motor based on the basic operating parameters when it is determined from water quality information that the washing water meets preset conditions.

[0051] Specifically, in the washing program, the centrifugal motor continuously controls the filter based on the target operating parameters determined by the water quality information. However, when the water quality information determines that the washing water meets preset conditions, it indicates that the current filter effect is good. Therefore, to reduce energy consumption, the centrifugal motor can be controlled using basic operating parameters. These basic operating parameters can be the rotation speed corresponding to ensuring the minimum filtration effect of the filter. Furthermore, in this embodiment, the preset condition can be that the turbidity value of the washing water is less than a preset turbidity value and this condition persists for a second preset duration. The preset turbidity value can be 50 NTU, and the second preset duration can be 1 minute.

[0052] In other embodiments of this disclosure, the filter screen has a multi-layer filter screen structure, wherein the pore diameter of each layer of the filter screen structure is different. The washing device includes multiple centrifugal motors, which are arranged one-to-one with the multi-layer filter screen structure to control the rotation and filtration of each layer of the filter screen structure.

[0053] Specifically, for example, the filter screen includes a two-layer filter structure: a first-stage filter and a second-stage filter. The first-stage filter has a diameter of 30 cm and a pore diameter of 1 mm, while the second-stage filter has a diameter of 25 cm and a pore diameter of 0.3 mm. This embodiment may also include two turbidity sensors to detect the water quality information of the washing water after each filter stage. Based on this water quality information, the target operating parameters for the corresponding centrifugal motor are determined, and the centrifugal motor is then controlled using these target operating parameters to ensure that different filter stages operate at different speeds.

[0054] Figure 4 is a flowchart of a control method for a washing device in a specific embodiment of this disclosure.

[0055] As shown in Figure 4, taking a dishwasher as an example, the process is as follows: First, the dishwasher is started. Then, the turbidity value of the washing water in the washing chamber of the dishwasher is detected. The target rotation speed of the filter is calculated based on the turbidity value. Then, the speed of the centrifugal motor is adjusted according to the target rotation speed to drive the filter to rotate. After that, it is determined whether the washing program of the floor cleaning equipment has ended. If it has ended, the current control method is terminated. If it has not ended, the turbidity value of the washing water is detected again.

[0056] In summary, the control method of the washing equipment in this embodiment can control the rotation of the filter screen according to the water quality, adjust the filtration effect of the filter screen, and greatly improve the user experience.

[0057] This disclosure provides a computer-readable storage medium having a control program for a washing device thereon, which, when executed by a processor, implements the control method for the washing device described in any of the above embodiments.

[0058] The computer-readable storage medium of this disclosure executes a control program for a washing device stored thereon via a processor, which can control the rotation of the filter screen according to the water quality and adjust the filtration effect of the filter screen, greatly improving the user experience.

[0059] Figure 5 is a block diagram of the control device of the washing equipment in an embodiment of this disclosure.

[0060] As shown in Figure 5, this disclosure proposes a control device 500 for a washing device. The washing device includes a washing chamber, a filter screen, and a centrifugal motor. The filter screen is used to filter the washing water in the washing chamber, and the centrifugal motor is used to control the rotation of the filter screen. The control device 500 includes an acquisition module 501, a determination module 502, and a control module 503.

[0061] The acquisition module 501 is used to acquire water quality information of the washing water every first preset time interval when the washing equipment is in the washing program; the determination module 502 is used to determine the target operating parameters of the centrifugal motor based on the water quality information; and the control module 503 is used to control the centrifugal motor based on the target operating parameters so that the filter screen rotates for filtration.

[0062] In some embodiments of this disclosure, after the control module 503 controls the centrifugal motor according to the target operating parameters, the acquisition module 501 is also used to acquire the actual operating parameters of the filter screen; the control module 503 is also used to perform PID control on the centrifugal motor according to the actual operating parameters and the target operating parameters.

[0063] In some embodiments of this disclosure, the acquisition module 501 is further configured to acquire the basic operating parameters of the filter screen; the control module 503 is further configured to control the centrifugal motor according to the basic operating parameters when it is determined from the water quality information that the washing water meets the preset conditions.

[0064] In some embodiments of this disclosure, water quality information includes water turbidity value, target operating parameters include target rotational speed, and basic operating parameters include basic rotational speed.

[0065] In some embodiments of this disclosure, if the turbidity value of the washing water remains below a preset turbidity value for a second preset duration, it is determined that the washing water meets the preset conditions.

[0066] In some embodiments of this disclosure, the filter screen has a multi-layer filter screen structure, wherein the diameter of the filter pores in each layer of the filter screen structure is different.

[0067] In some embodiments of this disclosure, the washing device includes multiple centrifugal motors, each corresponding to a multi-layer filter structure, to drive each filter structure to rotate and filter.

[0068] It should be noted that the specific implementation of the control device of the washing equipment in this embodiment can be found in the specific implementation of the control method of the washing equipment in the above embodiments. To avoid redundancy, it will not be described again here.

[0069] In summary, the control device of the washing equipment in this embodiment can control the rotation of the filter screen according to the water quality, thereby adjusting the filtration effect of the filter screen and greatly improving the user experience.

[0070] Figure 6 is a block diagram of the washing device in an embodiment of this disclosure.

[0071] As shown in Figure 6, this disclosure proposes a washing device 600, which includes the control device 500 of the washing device in the above embodiment.

[0072] The washing equipment of this disclosure embodiment, through the control device of the washing equipment of the above embodiment, can control the rotation of the filter screen according to the water quality, adjust the filtration effect of the filter screen, and greatly improve the user experience.

[0073] Furthermore, other components and functions of the washing equipment in the embodiments of this disclosure are known to those skilled in the art, and will not be described in detail here to reduce redundancy.

Claims

1. A control method for a washing machine, wherein, The washing equipment includes a washing chamber, a filter screen, and a centrifugal motor. The filter screen is used to filter the washing water in the washing chamber, and the centrifugal motor is used to control the rotation of the filter screen. The method includes: When the washing equipment is in the washing program, the water quality information of the washing water is acquired every first preset time interval; The target operating parameters of the filter are determined based on the water quality information. The centrifugal motor is controlled according to the target operating parameters to control the rotation of the filter screen for filtration.

2. The control method for the washing equipment according to claim 1, wherein, After controlling the centrifugal motor according to the target operating parameters, the method further includes: Obtain the actual operating parameters of the filter; The centrifugal motor is subjected to PID control based on the actual operating parameters and the target operating parameters.

3. The control method for the washing equipment according to claim 1 or 2, the method further comprising: Obtain the basic operating parameters of the filter; When the washing water meets the preset conditions based on the water quality information, the centrifugal motor is controlled according to the basic operating parameters.

4. The control method for the washing equipment according to claim 3, wherein, The water quality information includes water turbidity value, the target operating parameters include target rotational speed, and the basic operating parameters include basic rotational speed.

5. The control method for the washing equipment according to claim 4, wherein, If the turbidity value of the washing water remains below a preset turbidity value for a second preset duration, then the washing water is determined to meet the preset condition.

6. The control method for the washing equipment according to any one of claims 1-5, wherein, The filter screen has a multi-layered structure, wherein the diameter of the filter pores in each layer is different.

7. The control method for the washing equipment according to claim 6, wherein, The washing equipment includes multiple centrifugal motors, each of which is configured in a one-to-one correspondence with the multi-layer filter structure to drive each layer of the filter structure to rotate and filter.

8. A computer-readable storage medium having a control program for a washing device thereon, wherein the control program, when executed by a processor, implements the control method for the washing device according to any one of claims 1-7.

9. A control device for a washing machine, wherein, The washing equipment includes a washing chamber, a filter screen, and a centrifugal motor. The filter screen is used to filter the washing water in the washing chamber, and the centrifugal motor is used to control the rotation of the filter screen. The device includes: The acquisition module is used to acquire water quality information of the washing water every first preset time interval when the washing device is in the washing program; The determination module is used to determine the target operating parameters of the filter screen based on the water quality information; The control module is used to control the centrifugal motor according to the target operating parameters, so as to control the rotation of the filter screen for filtration through the centrifugal motor.

10. A washing apparatus, comprising a control device for the washing apparatus of claim 9.

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