Washing machine and control method thereof

Abstract

The application provides a washing machine and a control method thereof. The washing machine comprises a water inlet valve, a drum assembly, and an electric field generating device arranged on the drum assembly. The drum assembly comprises an inner drum and an outer drum. The electric field generating device is used for applying an electrostatic field between the inner drum and the outer drum. The method comprises: controlling the water inlet valve to supply water; controlling the electric field generating device to operate; and controlling the inner drum to rotate, so that stains on a load enter the electrostatic field under the action of water flow. According to the method, stains such as mites enter between the inner drum and the outer drum along with water flow, are subjected to the electric field force generated by the electric field generating device, and are retained between the inner drum and the outer drum. The method can actively and efficiently separate and transfer stains such as mites from fibers of the load, does not need high-temperature heating, and will not damage the fibers of the load and the service life of the washing machine.

Description

Technical Field

[0001] This application belongs to the field of washing machine technology, and in particular relates to a washing machine and its control method. Background Technology

[0002] In existing technologies, washing machines typically use heated washing to remove mites from clothes.

[0003] However, in actual use, the high temperatures caused by heating may damage clothing fibers or accelerate the aging of the washing machine. Therefore, a method that can eliminate mites without damaging clothing or equipment urgently needs to be studied by those skilled in the art. Summary of the Invention

[0004] This application provides a washing machine and its control method to remove stains such as mites while protecting clothing fibers and the lifespan of the washing machine.

[0005] This application provides a control method for a washing machine. The washing machine includes a water inlet valve, a drum assembly, and an electric field generating device disposed on the drum assembly. The drum assembly includes an inner drum and an outer drum. The electric field generating device is used to apply an electrostatic field between the inner drum and the outer drum. The drum assembly also includes a stain collection box. The method includes: Control the water inlet valve to allow water to enter; Control the operation of the electric field generating device; The inner cylinder is rotated so that the dirt on the load enters the electrostatic field under the action of water flow.

[0006] Optionally, the method further includes: Based on the operating stage of the washing machine, determine the rotational speed of the inner drum and / or the operating parameters of the electric field generating device; the operating parameters include the electric field strength and / or the electric field direction; The control of the electric field generating device includes: controlling the electric field generating device to operate according to the operating parameters; The control of the inner cylinder rotation includes: controlling the inner cylinder to run at the specified rotational speed.

[0007] Optionally, determining the rotational speed of the inner drum and / or the operating parameters of the electric field generating device based on the operating stage of the washing machine includes: When the washing machine executes a washing program, the rotation speed of the inner drum is determined to be a first rotation speed.

[0008] And / or, when the washing machine performs a rinsing program, the rotational speed of the inner drum is determined to be a second rotational speed; Wherein, the first rotation speed is less than the second rotation speed, and the second rotation speed is less than or equal to the mite removal rotation speed threshold.

[0009] Optionally, determining the rotational speed of the inner drum and / or the operating parameters of the electric field generating device based on the operating stage of the washing machine includes: Before the drain flow of the washing program and / or the drain flow of the rinsing program, the direction of the electric field is determined to be the opposite of the current direction.

[0010] Optionally, after controlling the operation of the electric field generating device, the method further includes: Before the washing machine starts the spin-drying program, the electric field generating device is turned off.

[0011] Optionally, after controlling the operation of the electric field generating device, the method further includes: Obtain the operating parameters of the electrostatic field; If the operating parameters exceed the preset threshold, the electric field generator will be shut down and an alarm will be triggered.

[0012] This application embodiment also provides a washing machine, which includes a water inlet valve, a drum assembly, and an electric field generating device disposed on the drum assembly. The drum assembly includes an inner drum and an outer drum. The electric field generating device is used to apply an electrostatic field between the inner drum and the outer drum. The drum assembly also includes a stain collection box. The washing machine also includes a controller, which is configured to perform the washing machine control method as described above.

[0013] Optionally, the cylinder assembly further includes a stain collection box for collecting stains.

[0014] Optionally, the electric field generating device includes: A power source, including a positive terminal and a negative terminal; The first slip ring extends circumferentially along the inner cylinder and is slidably connected to the positive electrode; The second slip ring extends circumferentially along the outer cylinder and is slidably connected to the negative electrode; When the power supply is turned on, the electrostatic field is generated between the first slip ring and the second slip ring.

[0015] Optionally, the voltage of the power supply is between 12V and 48V, and / or the power supply is a DC power supply.

[0016] The washing machine control method provided in this application embodiment causes mites and other stains to become charged on their surfaces due to friction between the load and the drum wall when the drum rotates. This is known as triboelectric effect. The charged mites enter the electrostatic field under the action of water flow and are trapped between the inner and outer drums by the electric field force generated by the electric field generator. This method can actively and efficiently separate and transfer mites and other stains from the fibers of the load, significantly improving the washing effect of the washing machine. At the same time, it does not involve high-temperature heating and will not damage the load fibers or the lifespan of the washing machine. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] To gain a more complete understanding of this application and its beneficial effects, the following description will be provided in conjunction with the accompanying drawings. In the following description, the same reference numerals denote the same parts.

[0019] Figure 1 This is a first flowchart illustrating the control method for a washing machine provided in an embodiment of this application. Figure 2 This is a second flowchart illustrating the control method for a washing machine provided in an embodiment of this application. Figure 3 This is a schematic diagram of the component connections of a washing machine provided in an embodiment of this application.

[0020] Figure 4 This is a schematic diagram of the structure of a washing machine provided in an embodiment of this application.

[0021] Figure 5 This is a schematic diagram of the structure of an electronic device provided in an embodiment of this application. Detailed Implementation

[0022] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0023] In the description of the embodiments of this application, "module" and "processor" can include hardware, software, or a combination of both. A module can include hardware circuitry, various suitable sensors, communication ports, and memory, and may also include software components, such as program code, or a combination of software and hardware. A processor can be a central processing unit, a microprocessor, a digital signal processor, or any other suitable processor. The processor has data and / or signal processing capabilities. The processor can be implemented in software, in hardware, or a combination of both. Non-transitory computer-readable storage media includes any suitable medium capable of storing program code, such as magnetic disks, hard disks, optical disks, flash memory, read-only memory, random access memory, etc.

[0024] This application provides a washing machine and its control method to remove stains such as mites while protecting clothing fibers and the lifespan of the washing machine. The following description is in conjunction with the accompanying drawings.

[0025] The washing machine control method provided in this application includes a water inlet valve, a drum assembly, and an electric field generating device disposed on the drum assembly. The drum assembly includes an inner drum and an outer drum. The inner drum is used to hold the load to be washed, i.e., clothes, and the outer drum is fitted outside the inner drum to hold washing water. The electric field generating device is used to apply an electrostatic field between the inner drum and the outer drum. The washing machine can be a front-loading washing machine; in other embodiments, it can also be a top-loading washing machine. Please refer to [link to relevant documentation]. Figure 1 The method includes the following steps: S101: Controls the water inlet valve to allow water to enter.

[0026] The controller opens the water inlet valve, injecting a certain amount of water into the drum assembly, such as between the outer and inner drums. The water level can be detected by a water level sensor, and the water inlet valve closes once the preset water level is reached. The preset water level is further determined by the user-selected washing mode and washing parameters, and is not further limited here.

[0027] By introducing water into the cylinder assembly, the friction between the loads is further increased, improving the electrostatic efficiency of mites and other dirt, thereby enhancing the mite removal efficiency. Simultaneously, the dirt on the loads is drawn into the electrostatic field.

[0028] S102: Control the operation of the electric field generating device.

[0029] In one specific embodiment, please refer to Figure 3The electric field generating device includes a power supply, a first slip ring, and a second slip ring. An outer tub is fitted around the outer periphery of the inner tub. The power supply includes a positive terminal and a negative terminal, with the negative terminal grounded through the washing machine casing. The first slip ring extends circumferentially along the inner tub, for example, it is fixed around the outer wall or end of the inner tub and slidably connected to the positive terminal. The second slip ring extends circumferentially along the outer tub, for example, it is fixed around the inner wall or end of the outer tub and slidably connected to the negative terminal. When the power supply is energized, an electrostatic field is generated between the first and second slip rings.

[0030] Since the first slip ring and the second slip ring extend around the inner and outer cylinders respectively, an electrostatic field can be generated in the 360° space between the inner and outer cylinders, thereby maximizing the mite removal space between the inner and outer cylinders and improving the mite removal efficiency.

[0031] Furthermore, the first slip ring is slidably connected to the positive terminal via a brush; the second slip ring is slidably connected to the negative terminal via a brush. To ensure the stability of the connection between the brush and the first and second slip rings, when the washing machine is removing mites, the rotation speed of the inner drum can be limited to less than the mite-removal speed threshold. This prevents the inner drum from rotating too high, which could lead to unstable connection between the brush and the first slip ring, resulting in an inability to stably generate an electrostatic field for mite removal. It could also cause poor contact or high-voltage discharge risks due to excessive centrifugal force or vibration.

[0032] Of course, if mite removal is performed simultaneously with other washing machine programs such as washing degree and rinsing program, the inner drum speed can be limited to be less than the mite removal speed threshold only during the target mite removal time. Outside the target mite removal time, the inner drum speed will run according to the parameters of the corresponding washing machine program.

[0033] After the control electric field generating device is activated, an electrostatic field is formed between the inner and outer cylinders.

[0034] When the stains to be treated are mainly mites, the power supply voltage of the electric field generator can be between 12V and 48V. For example, it can be 12V, 18V, 24V, 48V, etc., and it must be a DC voltage to ensure that the power supply voltage of the electric field generator is within a safe voltage range. The inside of a washing machine is damp, and using high voltage such as several hundred volts poses a risk of leakage and electric shock. 12V to 48V is a safe voltage that is accessible to the human body; even if there is a water leak, it will not cause harm, making it especially suitable for household appliances.

[0035] When the stains to be treated are mainly other substances such as protein or oil, the strength, polarity, and other parameters of the electrostatic field can be preset according to the load type and stain type, or selected by the user.

[0036] S103: Control the inner cylinder to rotate so that the dirt on the load enters the electrostatic field under the action of water flow.

[0037] The washing machine also includes a controller, such as an MCU, microcontroller, or PLC controller. The controller is electrically connected to components such as a water inlet valve, a motor, and an electric field generator. The controller is configured to execute the control method of the washing machine described in the various embodiments of the present invention.

[0038] The controller controls the motor to drive the inner cylinder to rotate at a specific speed and in a specific manner. As the inner cylinder rotates, it moves the load and generates friction, causing dirt particles such as mites on the load to become charged, i.e., triboelectric charging. In an electrostatic field, the charged dirt particles such as mites on the load are subjected to the electric field force, detach from the load's fibers, and migrate along the direction of the electric field lines.

[0039] The washing machine control method provided in this application embodiment causes the surface of mites and other stains to become charged due to friction between the load and the drum wall when the drum rotates. This is known as triboelectric effect. The charged mites and other stains enter the electrostatic field under the action of water flow and are retained between the inner and outer drums by the electric field force generated by the electric field generator. This method can actively and efficiently separate and transfer mites and other stains from the fibers of the load, significantly improving the washing effect of the washing machine. At the same time, there is no high-temperature heating, so it will not damage the load fibers or the life of the washing machine.

[0040] The execution order of S101 and S102 is not further restricted here; either one can be executed first. Preferably, S101 is executed first.

[0041] Furthermore, the cylinder assembly also includes a stain collection box, which can be installed on the inner or outer cylinder to collect stains. The stain collection box can be installed in a specific electric field area, such as an electric field convergence point or a low potential area near the inner cylinder wall. Migrating mites and other stains eventually fall into the stain collection box, thereby achieving the separation and fixation of stains from the load.

[0042] Optionally, the method further includes: determining the rotational speed of the inner drum and / or the operating parameters of the electric field generating device according to the operating stage of the washing machine; the operating parameters include the electric field strength and / or the electric field direction. Controlling the operation of the electric field generating device includes: controlling the electric field generating device to operate according to the operating parameters; controlling the rotation of the inner drum includes: controlling the inner drum to operate according to the rotational speed.

[0043] The operating parameters of the electric field generator and the rotation speed of the inner drum can be adaptively adjusted according to different operating stages of the washing machine to match the parameters of different operating stages of the washing machine, so as to maximize the mite removal effect.

[0044] It is understandable that the operation of a washing machine can include washing programs, rinsing programs, spin-drying programs, etc.

[0045] Optionally, determining the rotational speed of the inner drum and / or the operating parameters of the electric field generating device based on the operating stage of the washing machine includes: determining the rotational speed of the inner drum as a first rotational speed when the washing machine is executing a washing program; and / or determining the rotational speed of the inner drum as a second rotational speed when the washing machine is executing a rinsing program. Wherein, the first rotational speed is less than the second rotational speed, and the second rotational speed is less than or equal to a mite-removal rotational speed threshold.

[0046] The first rotation speed is less than the mite removal rotation speed threshold to ensure that the first slip ring and the second slip ring are stably connected to the positive and negative electrodes, respectively.

[0047] During the mite removal process, the inner drum can be controlled to run at a low speed for a preset duration during the washing cycle. This ensures a stable electrical connection between the inner and outer drums, generating a uniform and safe electrostatic field. This allows mites and other dirt sufficient time to be pulled out from the fibers and migrate to the dirt collection box. Simultaneously, the lower speed, combined with the water flow and detergent, softens and disperses the dirt. The first preset duration can be shorter than the total washing cycle time. Mite removal can be performed at the beginning, middle, or end of the washing cycle, and the first preset duration can be 10 to 30 minutes. The second speed can be 40 to 60 revolutions per minute.

[0048] The duration for which the inner cylinder maintains the second rotational speed is the second preset duration.

[0049] For example, the second rotation speed can be 100 to 150 revolutions per minute. During the rinsing stage, the main purpose is to remove residual detergent and remaining trace amounts of mites and other stains, and to prevent mites in the wash water from re-attaching to the load. By limiting the second rotation speed to be greater than the first rotation speed but less than or equal to the mite-removal speed threshold, appropriately increasing the rotation speed can increase the scouring force of the water flow and the friction between the clothes, while ensuring the stability of the electric field connection. This assists the electric field in throwing loosened but not completely detached mites and other stains into the stain collection box. The second preset time can be 5 to 15 minutes. The second preset time can be less than or equal to the total rinsing time.

[0050] In some examples, the electrostatic field can be activated only during the washing cycle. In other examples, the electrostatic field can be activated only during the rinsing cycle. In still other examples, the electrostatic field can be activated during both the washing and rinsing cycles.

[0051] Furthermore, based on the operating stage of the washing machine, the rotational speed of the inner drum and / or the operating parameters of the electric field generating device are determined, including: when the washing machine is executing a washing program, determining the electric field strength as a first strength; when the washing machine is executing a rinsing program, determining the electric field strength as a second strength. The second strength can be greater than the first strength, thereby increasing the ability to remove remaining mites during the rinsing stage.

[0052] Optionally, the rotation speed of the inner drum and / or the operating parameters of the electric field generating device are determined according to the operating stage of the washing machine, including: determining the direction of the electric field to be the opposite of the current direction before the drainage process of the washing program and / or before the drainage process of the rinsing program.

[0053] By controlling the direction of the electric field to be reversed, the stains attached to the positive electrode or the first slip ring are repelled by the reverse electric field force and fall into the washing water, thus carrying away the detached stains during the subsequent drainage process.

[0054] It should be noted that when the washing machine is running the washing and rinsing programs, the first slip ring of the electric field generator is connected to the positive terminal, and the second slip ring is connected to the negative terminal. Before the drainage process of the washing program or the rinsing program, the first slip ring of the electric field generator is connected to the negative terminal, and the second slip ring is connected to the positive terminal.

[0055] In some examples, the direction of the electric field can be determined to be the opposite of the current direction only before the drain flow of the washing program; in other examples, the direction of the electric field can be determined to be the opposite of the current direction only before the drain flow of the rinsing program; in still other examples, the direction of the electric field is determined to be the opposite of the current direction both before the drain flow of the washing program and before the drain flow of the rinsing program.

[0056] In some examples, the switching between positive and negative electrodes can be controlled by a double-pole double-throw relay. Specifically, the electric field generating device also includes a double-pole double-throw relay, which includes a common terminal and a throwing terminal; the common terminal includes a first common terminal and a second common terminal, the first common terminal being connected to a first slip ring, and the second common terminal being connected to a second slip ring; the throwing terminal includes a first throwing terminal, a second throwing terminal, a third throwing terminal, and a fourth throwing terminal; the first throwing terminal and the fourth throwing terminal are connected to the positive terminal of the power supply, and the second throwing terminal and the third throwing terminal are connected to the negative terminal of the power supply; when the double-pole double-throw relay is in the first state, the first common terminal is connected to the positive terminal of the power supply through the first throwing terminal, and the second common terminal is connected to the negative terminal of the power supply through the third throwing terminal, so the inner cylinder is positive and the outer cylinder is negative, generating a positive electrostatic field; when the double-pole double-throw relay is switched to the second state, the first common terminal is connected to the negative terminal of the power supply through the second throwing terminal, and the second common terminal is connected to the positive terminal of the power supply through the fourth throwing terminal, so the inner cylinder is negative and the outer cylinder is positive, generating a reverse electrostatic field.

[0057] Optionally, the method further includes: controlling the washing machine to drain water after the direction of the electric field is reversed based on the current direction.

[0058] This means that the water draining process at the end of the washing or rinsing cycle will first remove some of the dirt that fell into the washing water.

[0059] Optionally, after the electric field generating device is running, the method further includes: turning off the electric field generating device before the washing machine starts executing the spin-drying program. The turning off of the electric field generating device can be performed after the washing machine is draining.

[0060] The electric field generator is turned off, the electrostatic field disappears, and the dehydration program starts again. This allows residual mites and other stains in the washing water to be thrown to the outer drum by the centrifugal force of the inner drum and discharged with the wastewater, thus ending the mite removal program. This avoids turning on the electric field generator during the dehydration program, which could cause mites and other stains to be re-adsorbed onto the positive electrode or the first slip ring.

[0061] Optionally, after the electric field generating device is running, the method further includes: acquiring the operating parameters of the electrostatic field; when the operating parameters exceed a preset threshold, controlling the electric field generating device to shut down and triggering an alarm.

[0062] The operating parameters of the electrostatic field include the electric field strength and the current magnitude. When the operating parameters exceed the preset threshold, it indicates an abnormal phenomenon. For example, an abnormal increase in current may indicate a short circuit or leakage, and an abnormal decrease in voltage may indicate poor contact. In this case, the electric field generating device will be shut down, and an alarm will be triggered through the display panel, buzzer, or wireless communication module to prompt the user to check.

[0063] The controller can detect parameters such as the output voltage and current of the power supply, and the electric field strength between the inner and outer cylinders through voltage sensors, current sensors, etc.

[0064] Optionally, please refer to Figure 2 After the water inlet valve is controlled to allow water to enter, the method also includes: detecting whether the electric field generating device is abnormal; if not, then controlling the operation of the electric field generating device.

[0065] For example, an insulation detection circuit can be used to check for a risk of short circuit to ground in the electric field generator, or to check the continuity of the connections between the positive terminal and the first slip ring, and between the negative terminal and the second slip ring. If no abnormality is detected, the step "Control the operation of the electric field generator" is executed.

[0066] If an abnormality is detected, an alarm can be triggered and the user can be prompted to intervene, or the step of turning on the electric field generator can be skipped, and only the traditional washing mode can be executed, while prompting the user.

[0067] The aforementioned safety testing mechanism ensures the safety of the washing machine when using the electric field generating device in complex and humid environments, avoiding the risk of electric shock or equipment damage.

[0068] In other embodiments, the mite removal program may not be accompanied by washing and rinsing programs, and can be offered as a separate optional program for the user. In this case, when the electric field generating device is turned on, the inner drum can be directly controlled to run at the second speed for the first preset time, drain water, and then be controlled to run at the third speed for the second preset time, drain water, and then be controlled to reverse the positive and negative terminals of the power supply, drain water, turn off the electric field generating device, and control the washing machine to execute the spin-drying program.

[0069] The washing machine control method provided in this application actively migrates mites and other stains using an electrostatic field, combined with a stain collection box, achieving complete separation and collection of stains from clothes at room temperature. This significantly improves the washing ratio, prevents clothes from deforming, shrinking, and fading, and is suitable for various fabrics. A slip ring structure ensures stable power supply to the rotating components, enabling electrostatic washing at low speeds, balancing effectiveness and safety. The rotation speed is differentiated according to different stages such as washing and rinsing, optimizing the coordination between electrostatic cleaning and the mechanical action of water flow. The process of reversing the electrodes after rinsing and shutting off the electric field after draining further consolidates the cleaning effect, prevents secondary stain adhesion, and ensures safety during the spin-drying stage. Integrated electrical parameter detection and abnormal alarm functions enhance the product's safety and reliability.

[0070] This application also provides a washing machine, the structure of which can be found in the following embodiments. Figure 4 The washing machine includes a water inlet valve, a drum assembly, and an electric field generating device disposed on the drum assembly. The drum assembly includes an inner drum and an outer drum. The electric field generating device is used to apply an electrostatic field between the inner drum and the outer drum. The drum assembly also includes a stain collection box. The washing machine also includes a controller configured to perform the washing machine control method described above. The method includes the following steps: S101: controlling the water inlet valve to allow water to enter; S102: controlling the operation of the electric field generating device; S103: controlling the inner drum to rotate so that stains on the load enter the electrostatic field under the action of water flow.

[0071] Optionally, the cylinder assembly also includes a stain collection box for collecting stains.

[0072] By setting up a stain collection box, when a stain with a slight grime enters the electrostatic field, it enters the stain collection box under the action of the electric field force, thus preventing it from accumulating between the inner and outer cylinders.

[0073] Optionally, the electric field generating device includes a power supply, a first slip ring, and a second slip ring. The power supply includes a positive terminal and a negative terminal; the first slip ring extends circumferentially along the inner cylinder and is slidably connected to the positive terminal; the second slip ring extends circumferentially along the outer cylinder and is slidably connected to the negative terminal; after the power supply is energized, an electrostatic field is generated between the first slip ring and the second slip ring.

[0074] Optionally, the voltage of the power supply is between 12V and 48V, and / or the power supply is a DC power supply.

[0075] This application embodiment also provides a control device for a washing machine. The washing machine includes a drum assembly and an electric field generating device disposed on the drum assembly. The drum assembly includes an inner drum and an outer drum. The electric field generating device is used to apply an electrostatic field between the inner drum and the outer drum. The drum assembly also includes a stain collection box. The device includes: a control module configured to control the electric field generating device to turn on; and to control the inner drum to rotate so that the stains on the load migrate to the stain collection box under the action of the electrostatic field.

[0076] This application also provides an electronic device 300, please refer to... Figure 5 The system includes a memory 301, a processor 302, and a computer program 3011 stored in the memory 301 and executable on the processor 302. When the processor 302 executes the computer program 3011, it implements the washing machine control method described above. The method includes the following steps: S101: controlling the water inlet valve to allow water to enter; S102: controlling the operation of the electric field generating device; S103: controlling the inner drum to rotate so that dirt on the load enters the electrostatic field under the action of water flow.

[0077] This application embodiment also provides a storage medium storing control instructions. When the control instructions are executed by a processor, the control method for a washing machine as described above is implemented. The method includes the following steps: S101: controlling the water inlet valve to allow water to enter; S102: controlling the operation of the electric field generating device; S103: controlling the inner drum to rotate so that dirt on the load enters the electrostatic field under the action of water flow.

[0078] For example, a computer program can be divided into one or more modules / units, which are stored in memory and executed by a processor to perform the present invention. The one or more modules / units can be a series of computer program instruction segments capable of performing a specific function, which describe the execution process of the computer program in an electronic device.

[0079] Electronic devices can be desktop computers, laptops, handheld computers, and cloud servers, among other electronic devices. Electronic devices may include, but are not limited to, processors and memory. For example, electronic devices may also include input / output devices, network access devices, buses, etc.

[0080] The processor can be a Central Processing Unit (CPU), or other general-purpose processors, digital signal processors (DSPs), application-specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. A general-purpose processor can be a microprocessor or any conventional processor.

[0081] In the embodiments provided by this invention, it should be understood that the disclosed devices / electronic devices and methods can be implemented in other ways. For example, the device / electronic device embodiments described above are merely illustrative. For instance, the division of modules or units is only a logical functional division, and in actual implementation, there may be other division methods. Multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be through some interfaces; the indirect coupling or communication connection between devices or units may be electrical, mechanical, or other forms.

[0082] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs. Furthermore, the functional units in the various embodiments of this invention can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated units described above can be implemented in hardware or as software functional units.

[0083] If integrated modules / units are implemented as software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, all or part of the processes in the methods of the above embodiments of the present invention can also be implemented by a computer program instructing related hardware. The computer program can be stored in a computer-readable storage medium, and when executed by a processor, it can implement the steps of the various method embodiments described above. The computer program may include computer program code, which can be in the form of source code, object code, executable files, or certain intermediate forms. Computer-readable media may include: any entity or device capable of carrying computer program code, recording media, USB flash drives, portable hard drives, magnetic disks, optical disks, computer memory, read-only memory (ROM), random access memory (RAM), electrical carrier signals, telecommunication signals, and software distribution media, etc.

[0084] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0085] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more features.

[0086] The washing machine and its control method provided in the embodiments of this application have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this application. The description of the above embodiments is only for the purpose of helping to understand the method and core ideas of this application. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this application. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. A control method for a washing machine, characterized in that, The washing machine includes a water inlet valve, a drum assembly, and an electric field generating device disposed on the drum assembly. The drum assembly includes an inner drum and an outer drum. The electric field generating device is used to apply an electrostatic field between the inner drum and the outer drum. The method includes: Control the water inlet valve to allow water to enter; Control the operation of the electric field generating device; The inner cylinder is rotated so that the dirt on the load enters the electrostatic field under the action of water flow.

2. The control method for a washing machine according to claim 1, characterized in that, The method further includes: Based on the operating stage of the washing machine, determine the rotational speed of the inner drum and / or the operating parameters of the electric field generating device; the operating parameters include the electric field strength and / or the electric field direction; The control of the electric field generating device includes: controlling the electric field generating device to operate according to the operating parameters; The control of the inner cylinder rotation includes: controlling the inner cylinder to run at the specified rotational speed.

3. The control method for a washing machine according to claim 2, characterized in that, Determining the rotational speed of the inner drum and / or the operating parameters of the electric field generating device based on the operating stage of the washing machine includes: When the washing machine executes a washing program, the rotation speed of the inner drum is determined to be a first rotation speed; And / or, when the washing machine performs a rinsing program, the rotational speed of the inner drum is determined to be a second rotational speed; Wherein, the first rotation speed is less than the second rotation speed, and the second rotation speed is less than or equal to the mite removal rotation speed threshold.

4. The control method for a washing machine according to claim 2, characterized in that, Determining the rotational speed of the inner drum and / or the operating parameters of the electric field generating device based on the operating stage of the washing machine includes: Before the drain flow of the washing program and / or the drain flow of the rinsing program, the direction of the electric field is determined to be the opposite of the current direction.

5. The control method for a washing machine according to claim 1, characterized in that, After controlling the operation of the electric field generating device, the method further includes: Before the washing machine starts the spin-drying program, the electric field generating device is turned off.

6. The control method for a washing machine according to claim 1, characterized in that, After controlling the operation of the electric field generating device, the method further includes: Obtain the operating parameters of the electrostatic field; If the operating parameters exceed the preset threshold, the electric field generator will be shut down and an alarm will be triggered.

7. A washing machine, characterized in that, The washing machine includes a water inlet valve, a drum assembly, and an electric field generating device disposed on the drum assembly. The drum assembly includes an inner drum and an outer drum. The electric field generating device is used to apply an electrostatic field between the inner drum and the outer drum. The washing machine also includes a controller configured to perform the control method of the washing machine as described in any one of claims 1-6.

8. The washing machine according to claim 7, characterized in that, The cylinder assembly also includes a stain collection box for collecting stains.

9. The washing machine according to claim 7, characterized in that, The electric field generating device includes: A power source, including a positive terminal and a negative terminal; The first slip ring extends circumferentially along the inner cylinder and is slidably connected to the positive electrode; The second slip ring extends circumferentially along the outer cylinder and is slidably connected to the negative electrode; When the power supply is turned on, the electrostatic field is generated between the first slip ring and the second slip ring.

10. The washing machine according to claim 9, characterized in that, The voltage of the power supply is between 12V and 48V, and / or the power supply is a DC power supply.

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