Water softening device, household appliance and control method thereof

Abstract

The embodiment of the present application provides a water softening device, a household appliance and a control method thereof, which comprises a container and an electrode assembly, the electrode assembly comprises an insulation layer and at least two electrode sheets, the at least two electrode sheets comprise a positive electrode sheet and a negative electrode sheet, and a water passing channel for accommodating the insulation layer is formed between the adjacent positive electrode sheet and negative electrode sheet; the electrode sheet comprises a current collector and an adsorption layer, and the adsorption layer is arranged on at least one surface of the current collector on the side facing the water passing channel; the positive electrode sheet and the negative electrode sheet are used to form an electrostatic field in the water passing channel in a powered state, and the adsorption layer is used to adsorb ions in water flowing through the water passing channel under the action of the electrostatic field. The water softening device of the embodiment of the present application can effectively remove calcium and magnesium ions in water, the electro-adsorption technology has small pollution, no by-product is generated in the whole process, and the water softening device is convenient to adapt to different household appliances, for example, the water softening device can increase the laundry cleaning degree of a washing machine and reduce the color mixing phenomenon of laundry, or increase the deodorization and sterilization care effect of a clothes dryer on laundry.

Description

[0001] Cross-references to related applications

[0002] This application is based on and claims priority to Chinese Patent Application No. 202411733634.8, filed on November 28, 2024, the entire contents of which are hereby incorporated herein by reference. Technical Field

[0003] This application relates to the field of water treatment technology, and in particular to a water softening device, a household appliance, and a control method thereof. Background Technology

[0004] Taking household appliances as clothing processing equipment as an example, clothing processing equipment uses tap water, which is hard water. The minerals in hard water are prone to solidify inside the clothing processing equipment, clogging the water pipes and causing serious wear and tear on the operating parts. In addition, hard water can easily result in low cleaning efficiency and color bleeding of clothes, affecting the user experience.

[0005] In related technologies, a water softening device is installed in the clothing treatment equipment. The water softening device uses ion exchange resin or reverse osmosis membrane to soften hard water. However, ion exchange resin blocks are large in size and difficult to integrate into the clothing treatment equipment. They also require periodic salt addition to activate the resin, which is inconvenient to operate. Reverse osmosis membrane requires very high pressure, and tap water pressure is difficult to penetrate the membrane module. Summary of the Invention

[0006] In view of this, the embodiments of this application aim to provide a water softening device, a household appliance and a control method thereof. The water softening device uses electro-adsorption deionization technology to effectively remove calcium and magnesium ions in the water, thereby softening the water. It is easy to use and can be easily adapted to various household appliances.

[0007] This application provides a water softening device for use in household appliances, including:

[0008] The container has a first inlet and a first outlet.

[0009] An electrode assembly is disposed within the container. The electrode assembly includes an insulating layer and at least two electrode plates, the at least two electrode plates including a positive electrode plate and a negative electrode plate, and a water passage for accommodating the insulating layer is formed between adjacent positive electrode plates and negative electrode plates.

[0010] The electrode sheet includes a current collector and an adsorption layer, wherein the adsorption layer is at least disposed on the surface of the current collector facing the water passage.

[0011] The positive electrode and the negative electrode are used to create an electrostatic field in the water passage when energized, and the adsorption layer is used to adsorb ions in the water flowing through the water passage under the action of the electrostatic field.

[0012] In some embodiments, the electrode sheet further includes an ion exchange membrane disposed on the side of the adsorption layer away from the current collector, the ion exchange membrane being used to allow ions of opposite polarity to pass through the electrode sheet in which it is located;

[0013] And / or, the container has a wastewater outlet.

[0014] In some embodiments, the current collector includes at least one of graphite paper, carbon paper, and metal mesh; and / or, the adsorption layer includes at least one of activated carbon, carbon felt, and carbon cloth.

[0015] In some embodiments, the adsorption layer comprises carbon cloth with a thickness of 0.02 mm to 0.5 mm; or, the adsorption layer comprises carbon felt with a thickness of 0.5 mm to 4 mm.

[0016] In some implementations, the insulating layer comprises hydrophilic cotton and / or a resin diaphragm.

[0017] In some embodiments, the insulating layer includes a resin membrane, wherein the resin in the resin membrane includes at least one of polyethylene, polypropylene, and polyester.

[0018] This application provides a household appliance, including:

[0019] The first water inlet channel is used to connect to the water source;

[0020] Power module;

[0021] And the water softening device described in any embodiment of this application, wherein the water softening device is disposed in the first water inlet channel, and the power module is electrically connected to the electrode assembly of the water softening device for supplying power to the electrode assembly.

[0022] In some implementations, the household appliance includes a control board for adjusting the voltage applied to the electrode assembly by the power module based on acquired water hardness information.

[0023] In some implementations, the household appliance includes a network module for obtaining water hardness information corresponding to the current address of the household appliance from the network side; and / or, the household appliance includes a water quality detection device for at least detecting the hardness of the water source and generating a detection signal, and the control motherboard for obtaining the water hardness information based on the detection signal.

[0024] In some implementations, the container has a wastewater outlet, the household appliance has a drainage channel, and the wastewater outlet is connected to the drainage channel.

[0025] In some embodiments, the household appliance includes an atomizing device and a care chamber for accommodating a person to be cared for, the atomizing device being connected to a first water inlet, the water softening device being used to at least provide softened water to the atomizing device, and the atomizing device being used to generate an atomizing medium and provide the atomizing medium to the care chamber.

[0026] In some embodiments, the atomizing device includes a heating structure for heating water within the atomizing device to generate water vapor; or, the atomizing device includes an ultrasonic atomizer for ultrasonically atomizing water within the atomizing device to generate water mist; or, the atomizing device includes an atomizing nozzle for dispersing water flow into water mist.

[0027] In some implementations, the household appliance includes a second water inlet for connecting to a water source, the second water inlet not flowing through the water softener.

[0028] In some implementation schemes, the first water inlet channel includes a first sub-section, and the second water inlet channel includes a second sub-section;

[0029] The household appliance includes a first valve and a second valve. The first valve is disposed in the first sub-section and located upstream of the water softening device, and the second valve is disposed in the second sub-section. The first valve is used to open or close the first sub-section, and the second valve is used to open or close the second sub-section.

[0030] In some implementation schemes, the valve core opening of the first valve is adjustable, and the valve core opening of the second valve is adjustable. By adjusting the valve core opening of the first valve and / or the second valve, the water hardness of the water mixed in the first inlet water passage and the second inlet water passage can be adjusted.

[0031] In some implementations, the household appliance includes a control board, and both the first valve and the second valve are electrically connected to the control board. The control board is used to control the valve core opening of the first valve and / or the valve core opening of the second valve based on water hardness information.

[0032] In some implementations, a portion of the first water inlet channel and a portion of the second water inlet channel share the same common waterway, and the ends of both the first and second sub-segments are connected to the common waterway.

[0033] In some implementations, the household appliance includes at least one of a clothing processing device, a dishwasher, a shoe washing machine, a fruit and vegetable washing machine, and a water purifier.

[0034] This application provides a control method for a household appliance, the household appliance including a first water inlet circuit and a water softening device disposed on the first water inlet circuit, the control method including:

[0035] Responding to the soft water start command;

[0036] The control power module applies voltage to the electrode assembly of the water softener so that the water softener can perform softening treatment on the water flowing through the first inlet water path.

[0037] In some implementations, the control method further includes:

[0038] Obtain water hardness information;

[0039] The control power module applies voltage to the electrode assembly of the water softener by: obtaining a voltage corresponding to the water hardness information based on the water hardness information, and controlling the power module to apply the voltage corresponding to the water hardness information to the water softener.

[0040] In some implementations, the control method further includes:

[0041] Based on the regeneration command, the power module is controlled to apply a reverse voltage to the water softener, so that the electrode assembly of the water softener performs reverse polarity regeneration.

[0042] In some implementations, the control method includes:

[0043] To obtain the hardness of the product water after it has been treated by a water softening device;

[0044] The hardness of the produced water is compared with a preset threshold. If the hardness of the produced water is higher than the preset threshold, a regeneration command is generated.

[0045] In some embodiments, the household appliance includes an atomizing device and a care chamber for accommodating the object to be cared for, the water softening device being used to supply softened water to the atomizing device, and the atomizing device being used to supply an atomizing medium to the care chamber;

[0046] The preset threshold is no more than 10 mg / L.

[0047] In some implementations, the household appliance includes an atomizing device, a switching valve, and a care chamber for accommodating the object to be cared for; the water softener is used to supply softened water to the atomizing device; the atomizing device is used to supply atomizing medium to the care chamber; and the switching valve is disposed on the first water inlet line between the atomizing device and the water softener.

[0048] The control method further includes: if the hardness value of the produced water is higher than a preset threshold, closing the switch valve; if the hardness value of the produced water is not higher than the preset threshold, opening the switch valve.

[0049] In some implementations, the household appliance includes a second water inlet for connecting to a water source, the second water inlet not flowing through the water softener; the control method further includes:

[0050] Adjust the flow rate of the first water inlet path and / or the second water inlet path so that the hardness value of the mixed water after the product water from the first water inlet path is treated by the water softening device and the water from the second water inlet path is within a preset range.

[0051] In some implementations, the preset range is 50 mg / L to 120 mg / L.

[0052] In some implementations, the control method includes:

[0053] Obtain water hardness information;

[0054] The adjustment of the flow rate of the first water inlet path and / or the second water inlet path includes: obtaining the flow rate ratio of the first water inlet path and the second water inlet path based on the water hardness information, and adjusting the flow rate of the first water inlet path and / or the flow rate of the second water inlet path based on the flow rate ratio.

[0055] In some implementation schemes, adjusting the flow rates of the first inlet water passage and the second inlet water passage includes:

[0056] Adjust the valve core opening of the first valve on the first water inlet line and / or the valve core opening of the second valve on the second water inlet line.

[0057] In some implementations, the control method includes:

[0058] The hardness of the mixed water obtained after mixing the first inlet water passage and the second inlet water passage located downstream of the water softener is obtained;

[0059] Based on the hardness of the mixed water, adjust the flow rate of the first inlet water path and / or the second inlet water path until the hardness of the mixed water after the product water from the first inlet water path has been treated by the water softening device and the water from the second inlet water path is within the preset range.

[0060] In some implementation schemes, obtaining water hardness information includes:

[0061] The system receives a detection signal from a water quality testing device to detect the hardness of a water source, and obtains the water source hardness information based on the detection signal; or, it obtains the water source hardness information corresponding to the current address of the household appliance from the network side.

[0062] In some implementations, the household appliance includes a second water inlet for connecting to a water source, the second water inlet not flowing through the water softener; the control method further includes:

[0063] Adjust the water inlet duration of the first water inlet path and / or the second water inlet path so that the hardness value of the mixed water after the product water from the first water inlet path is treated by the water softening device and the water from the second water inlet path is within a preset range.

[0064] In some embodiments, the household appliance includes a clothing handling chamber, and the control method includes:

[0065] Start the washing and rinsing program;

[0066] Based on the soft water start command, the control power module applies voltage to the electrode assembly of the soft water device so that the soft water device performs softening treatment on the water flowing through the first inlet water path to produce softened water.

[0067] During the washing stage, softened water is sent into the garment processing chamber to perform the washing.

[0068] In some implementations, the control method includes:

[0069] Based on the regeneration command, the power module is controlled to apply a reverse voltage to the water softener, so that the electrode assembly of the water softener performs reverse regeneration to generate wastewater.

[0070] In at least one of the washing and rinsing stages, wastewater is fed into and discharged from the garment processing chamber and / or discharged through the drainage channel of the garment processing equipment.

[0071] In some implementations, the rinsing stage includes rinsing and cleaning as well as rinsing and dehydrating, during which wastewater is introduced into the garment processing chamber.

[0072] In some implementations, the household appliance includes a second water inlet for connecting to a water source, the second water inlet not flowing through the softened water device;

[0073] During the rinsing stage, one of the following is sent into the garment processing chamber: softened water, a mixture of softened water and water from the second water inlet, and water from the second water inlet.

[0074] The water softening device provided in this application uses electroadsorption technology to soften water, effectively removing calcium and magnesium ions. Electroadsorption technology has low pollution and high energy utilization, and the entire process produces no byproducts, making it environmentally friendly. Furthermore, the water softening device has a simple structure, making it easy to adapt to different household appliances, thus improving the reliability of these appliances. For example, it can improve the cleaning power of washing machines and reduce color bleeding caused by hard water washing; enhance the deodorizing, sterilizing, and softening effects of dryers; or improve the cleaning capabilities of dishwashers and shoe washers. In addition, the electrode components of the water softening device have no limit to the number of charge-discharge cycles and can be regenerated by short-circuiting or reversing the electrodes, resulting in low maintenance costs and no consumables required. Attached Figure Description

[0075] Figure 1 This is a partial structural schematic diagram of the electrode assembly of a water softening device according to an embodiment of this application;

[0076] Figure 2 This is a partial structural schematic diagram of the electrode assembly of a water softening device according to another embodiment of this application;

[0077] Figure 3 This is a partial structural diagram of a household appliance according to an embodiment of this application, wherein the household appliance is a washing machine or a washer-dryer combo;

[0078] Figure 4 This is a partial structural diagram of a household appliance according to an embodiment of this application, wherein the household appliance is a dryer or a washer-dryer combo;

[0079] Figure 5 This is a schematic diagram of a control method for a household appliance according to an embodiment of this application;

[0080] Figure 6 This is a flowchart illustrating a control method for a household appliance according to a specific embodiment of this application, wherein the household appliance is a washing machine or a washer-dryer combo.

[0081] Figure 7 This is a flowchart illustrating a control method for a household appliance according to another specific embodiment of this application, wherein the household appliance is a dryer or a washer-dryer combo.

[0082] Figure 8This is a simplified schematic diagram of the control method of the household appliance in Example 1 of this application, wherein the household appliance is one of a washing machine and a washer-dryer combo. The solid arrows with dotted lines schematically show the flow direction of the softened water, and the hollow arrows with dashed lines schematically show the flow direction of the wastewater.

[0083] Figure 9 This is a simplified schematic diagram of the control method of the household appliance in Example 2 of this application, wherein the household appliance is one of a washing machine and a washer-dryer combo. The solid arrows with dotted lines schematically show the flow direction of the softened water, and the hollow arrows with dashed lines schematically show the flow direction of the wastewater.

[0084] Figure 10 This is a simplified schematic diagram of the control method of the household appliance in Example 3 of this application, wherein the household appliance is one of a washing machine and a washer-dryer combo. The solid arrows with dotted lines schematically show the flow direction of the softened water, and the hollow arrows with dashed lines schematically show the flow direction of the wastewater.

[0085] Figure 11 This is a simplified schematic diagram of the control method of the household appliance in Example 4 of this application, wherein the household appliance is one of a washing machine and a washer-dryer combo. The solid arrows with dotted lines schematically show the flow direction of the softened water, and the hollow arrows with dashed lines schematically show the flow direction of the wastewater.

[0086] Figure 12 This is a simplified schematic diagram of the control method of the household appliance in Example 5 of this application, wherein the household appliance is one of a washing machine and a washer-dryer combo. The solid arrows with dotted lines schematically show the flow direction of the softened water, and the hollow arrows with dashed lines schematically show the flow direction of the wastewater.

[0087] Figure 13 This is a simplified schematic diagram of the control method for a household appliance in Example Six of this application, wherein the household appliance is either a washing machine or a washer-dryer combo. The solid arrows with dotted lines schematically show the flow direction of the softened water, and the hollow arrows with dashed lines schematically show the flow direction of the wastewater.

[0088] Explanation of reference numerals in the attached figures

[0089] 1-Soft water device; 10'-Positive electrode plate; 10”-Negative electrode plate; 101-Current collector; 102-Adsorption layer; 103-Insulating layer; 104-Ion exchange membrane; 1a-First inlet; 1b-First outlet; 1c-Wastewater outlet; 1d-Water passage;

[0090] 2-First water inlet path; 21-First sub-section; 3-Second water inlet path; 31-Second sub-section; 4-First valve; 5-Second valve; 6-Common water path; 7-Clothing processing chamber; 8-Atomizing device;

[0091] 100 - Washing stage; 200 - First rinse stage; 300 - Second rinse stage. Detailed Implementation

[0092] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0093] The specific technical features described in the specific embodiments can be combined in any suitable manner without contradiction. For example, different combinations of specific technical features can form different embodiments and technical solutions. To avoid unnecessary repetition, the various possible combinations of the specific technical features in this invention will not be described separately.

[0094] In the following description, the terms "first," "second," etc., are used merely to distinguish different objects and do not indicate that the objects have the sameness or relationship. It should be understood that the directional descriptions "above," "below," "outside," and "inside" refer to the orientation under normal use conditions, while "left" and "right" refer to the left and right directions shown in the corresponding diagrams, which may or may not be the left and right directions under normal use conditions.

[0095] It should be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. "A plurality of" means two or more.

[0096] This application provides a water softening device 1.

[0097] It should be noted that the application field of the water softener 1 is not limited. In this embodiment, the water softener 1 is used as an example of household appliances.

[0098] This application also provides a household appliance, which includes a first water inlet channel 2, a power module, and a water softening device 1 according to any embodiment of this application.

[0099] It is understood that the specific form of household appliances is not limited. For example, household appliances include at least one of the following: clothing handling equipment, dishwashers, shoe washing machines, fruit and vegetable cleaners, and water purifiers.

[0100] In this embodiment of the application, a household appliance including a clothing processing device is used as an example for description.

[0101] Clothing handling equipment can be a washing machine, a dryer, or a washer-dryer combo. Here, a washer-dryer combo is a machine that has both washing and drying functions in the same clothing handling chamber. In some cases, the clothing handling chamber performs the washing function, and in other cases, it performs the drying function.

[0102] Please see Figures 1 to 4 The water softening device 1 includes a container and an electrode assembly. The container has a first inlet 1a and a first outlet 1b. The electrode assembly is disposed inside the container.

[0103] The container is used to provide a space for water and electrode components as well as a reaction space. The first inlet 1a is used to introduce unsoftened water, i.e., hard water, and the first outlet 1b is used to discharge softened water, i.e., soft water.

[0104] It is understandable that the electrode assembly can be based on electro-sorption technology (EST), also known as capacitive deionization (CDI), to soften water. It utilizes the adsorption of ions and charged ions in the water on the surface of charged electrodes, so that dissolved salts and other charged substances in the water are enriched and concentrated on the surface of the electrode to achieve water softening.

[0105] The first water inlet channel 2 is used to connect to the water source. The water softener 1 is installed in the first water inlet channel 2. The power module is electrically connected to the electrode assembly and is used to supply power to the electrode assembly.

[0106] The water softener 1 obtains water (e.g., tap water) from a water source through the first water inlet 2. The power module provides electrical energy to the electrode assembly, and the household appliances apply external voltage to the electrode assembly through the power module.

[0107] The electrode assembly includes an insulating layer 103 and at least two electrode plates, each including a positive electrode plate 10' and a negative electrode plate 10'". A water passage 1d for accommodating the insulating layer 103 is formed between adjacent positive electrode plates 10' and negative electrode plates 10'. The electrode plates include a current collector 101 and an adsorption layer 102, with the adsorption layer 102 at least disposed on the surface of the current collector 101 facing the water passage 1d.

[0108] It is understood that at least two, including two, four or more. The water passage 1d is used for water supply, and the insulating layer 103 is used to isolate the positive electrode 10' and the negative electrode 10" to avoid short circuit between the positive electrode 10' and the negative electrode 10" so that the electrode assembly can work normally.

[0109] The current collector 101 is used to carry the electrode materials of the positive and negative electrodes, and at the same time collects the current to conduct electrons.

[0110] The positive electrode 10' and the negative electrode 10" are used to form an electrostatic field in the water channel 1d when energized, and the adsorption layer 102 is used to adsorb ions in the water flowing through the water channel 1d under the action of the electrostatic field.

[0111] For example, the positive electrode 10' and the negative electrode 10" can form an electrostatic field between the positive electrode 10' and the negative electrode 10" by the external voltage of the power module. Charged ions are forced to move towards the electrode with opposite charge by electrostatic force in the electrostatic field, forming a double layer on the surface of the electrode. Charged ions are adsorbed and temporarily stored in the double layer. The adsorption layer 102 adsorbs charged ions. When the adsorption process reaches equilibrium, the electric field is removed or the power supply is reversed, and the adsorbed ions return to the water, achieving the purpose of desorption.

[0112] In the electro-adsorption process, the storage or release of charge is achieved through the adsorption and desorption of ions rather than chemical reactions, thus enabling rapid charging and discharging. Moreover, since only the adsorption and desorption of ions occur during the charging and discharging process, the electrode structure does not change, so there is no limit to the number of times the electrode can be charged and discharged.

[0113] Understandably, when the surface potential of the electrode plate reaches a certain value, the concentration of ions in the double layer is high. The ions are stored in the electrode plate under the action of the DC electric field until the electrode plate reaches saturation. At this time, the current power supply is removed, and the positive electrode plate 10' and the negative electrode plate 10" are short-circuited. Due to the disappearance of the DC electric field, the ions stored in the double layer return to the water passage 1d, and the electrode plate is regenerated. At this time, the ions can be discharged through the first water outlet 1b or through other water outlets set in the container.

[0114] Alternatively, the electrode plate can be regenerated by reversing the electrode, that is, changing the direction of the electric field to make the accumulated ions move in the opposite direction, thereby removing the ions adsorbed on the electrode plate.

[0115] The water softening device 1 provided in this application embodiment softens water using electroadsorption technology, effectively removing calcium and magnesium ions from the water. Electroadsorption technology has low pollution and high energy utilization, and the entire process produces no byproducts, making it environmentally friendly. Furthermore, the water softening device 1 has a simple structure, making it easy to adapt to different household appliances, thus improving the reliability of these appliances. For example, it can increase the cleaning power of washing machines and reduce color bleeding caused by hard water washing; it can enhance the deodorizing, sterilizing, and softening effects of dryers; or it can improve the cleaning capabilities of dishwashers and shoe washers. In addition, the electrode assembly of the water softening device 1 has no limit on the number of charge-discharge cycles and can be regenerated by short-circuiting or reversing the electrodes, resulting in low maintenance costs and no need for consumables.

[0116] Taking a washing machine as an example of a household appliance, please refer to [link / reference]. Figure 3 The water softening device 1 can be installed upstream of the detergent dispensing device of the washing machine. The water softened by the water softening device 1 flows through the detergent dispensing device and then enters the clothes processing chamber 7. The softened water can fully mix with the detergent and dissolve the detergent before entering the clothes processing chamber 7 together, thereby improving the washing efficiency of clothes.

[0117] It is understandable that detergents can be granular substances such as laundry powder, liquid detergents, fabric softeners, disinfectants, or laundry pods, etc., without any restrictions.

[0118] Taking a clothes dryer as an example of a household appliance, please refer to [link / reference]. Figure 4 The dryer can be equipped with an atomizing device 8, which is located downstream of the water softening device 1. The water softened by the water softening device 1 flows through the atomizing device 8 and is atomized into steam, which enters the drying drum to deodorize, sterilize, and remove wrinkles from the clothes, thus improving the drying effect.

[0119] It is understandable that when the household appliance is a washer-dryer combo, the settings for the washing machine can be referenced when the clothes handling chamber of the washer-dryer combo performs the washing function, and the settings for the dryer can be referenced when the clothes handling chamber of the washer-dryer combo performs the drying function. These will not be elaborated here.

[0120] In some embodiments, please refer to Figure 2 The electrode sheet also includes an ion exchange membrane 104, which is disposed on the side of the adsorption layer 102 away from the current collector 101. The ion exchange membrane 104 is used to allow ions of opposite polarity to pass through the electrode sheet on which it is located.

[0121] Ion exchange membrane 104 refers to a material that adsorbs ions onto the membrane surface and exchanges ions within the membrane. Ions adsorbed onto the membrane can undergo exchange and migration within the membrane.

[0122] In this embodiment, the ion exchange membrane 104 blocks the passage of ions that are the same as those on the electrode sheet by using ions that are different from those on the electrode sheet. Thus, the adsorption layer 102 of the electrode sheet on which the ion exchange membrane 104 is located can adsorb ions that are different from those on the electrode sheet, thereby prolonging the activity of the electrode sheet.

[0123] For example, the anion exchange membrane 104 allows anions to pass through and blocks cations from passing through. The anion exchange membrane 104 is disposed on the side of the adsorption layer 102 of the positive electrode 10' away from the current collector 101, so that anions flow to the positive electrode 10'. The cation exchange membrane 104 allows cations to pass through and blocks anions from passing through. The cation exchange membrane 104 is disposed on the side of the adsorption layer 102 of the negative electrode 10' away from the current collector 101, so that cations flow to the negative electrode 10'.

[0124] It is understood that an adjacent positive electrode 10' and negative electrode 10" constitute a group of electrode plates. When there are multiple groups of electrode plates, the connection method between the multiple groups of electrodes is not limited. For example, multiple groups of electrodes can be connected in series and parallel. The multiple groups of electrodes are divided into two parts, and the groups of electrodes in each part are first connected in parallel, and then the two parts are connected in series. For example, multiple groups of electrodes can be connected in full parallel, that is, all groups of electrodes are connected in parallel.

[0125] In some embodiments, please refer to Figure 3 and Figure 4 The container has a wastewater outlet 1c.

[0126] It is understandable that when the adsorption layer 102 reaches equilibrium, the positive electrode 10' and the negative electrode 10" are short-circuited or the polarity is reversed, the ions stored in the double layer are desorbed and return to the water passage 1d to regenerate the electrode. In this case, the water containing ions in the water passage 1d can be discharged through the wastewater outlet 1c, that is, water containing calcium and magnesium ions is discharged through the wastewater outlet 1c.

[0127] The specific structure of the current collector 101 is not limited.

[0128] In some embodiments, the current collector 101 includes at least one of graphite paper, carbon paper, and metal mesh.

[0129] Graphite paper is a flexible sheet material made of natural or artificial graphite. Graphite paper has good electrical conductivity, good bending properties, and a low coefficient of thermal expansion.

[0130] Graphite paper can be produced by mechanical exfoliation, chemical vapor deposition, etc. For example, graphite paper can be formed by processing graphite raw materials into thin sheets through special processes after high-temperature treatment.

[0131] Carbon paper is a carbon fiber composite material made from carbon fibers. It is primarily composed of high-purity carbon fibers, which are joined together using a specific process to form a porous and conductive paper-like material.

[0132] Carbon paper has good electrical conductivity, is lightweight, and has good strength.

[0133] Metal mesh is a mesh structure made of metal materials, formed by weaving, welding, or other methods together metal wires, strips, or sheets. Metal mesh has good electrical conductivity and high strength.

[0134] For example, the metal mesh can be titanium mesh, nickel mesh, or aluminum mesh, etc.

[0135] The specific structure of the adsorption layer 102 is not limited.

[0136] In some embodiments, the adsorption layer 102 includes at least one of activated carbon, carbon felt, and carbon cloth.

[0137] Activated carbon is a carbon material with highly developed pores. It has a high adsorption capacity and can effectively remove organic matter and heavy metal ions from water.

[0138] Carbon felt is a porous, flexible carbon fiber material supported by short-cut carbon fibers or continuous filaments through methods such as needle punching and weaving. Carbon felt possesses excellent electrical conductivity and temperature resistance.

[0139] Carbon cloth is a type of fabric woven from carbon fibers, which has good electrical and thermal conductivity.

[0140] For example, please refer to Figure 1 The electrode sheet can be made by mixing a binder, conductive agent carbon black, and activated carbon in a certain proportion to form a slurry, which is then coated onto the current collector 101. For other embodiments, please refer to... Figure 2 The electrode sheet can be made by mixing binder, conductive agent carbon black and activated carbon in a certain proportion to form a slurry, which is then coated onto the current collector 101 and filled with carbon felt. An ion exchange membrane is then placed at the end of the electrode sheet away from the current collector 101. In some embodiments, the electrode sheet can be made by filling the current collector 101 with multiple carbon cloths.

[0141] In some embodiments, the thickness of the carbon cloth is 0.02 mm (millimeter) to 0.5 mm, for example, 0.02 mm, 0.08 mm, 0.1 mm, 0.15 mm, 0.2 mm, 0.23 mm, 0.25 mm, 0.3 mm, 0.36 mm, 0.43 mm, 0.47 mm, 0.5 mm, etc.

[0142] In this embodiment, the carbon cloth has a suitable thickness, which can adsorb enough metal ions, and the strength and stability of the carbon cloth are also relatively high.

[0143] In other embodiments, the thickness of the carbon felt is 0.5mm-4mm, for example, 0.5mm, 0.8mm, 1mm, 1.3mm, 1.8mm, 2mm, 2.5mm, 2.6mm, 3mm, 3.3mm, 3.7mm, 4mm, etc.

[0144] In this embodiment, the carbon felt has a suitable thickness, which ensures sufficient adsorption performance while also making the overall thickness of the electrode sheet suitable.

[0145] In some embodiments, the insulating layer 103 comprises hydrophilic cotton and / or a resin diaphragm.

[0146] Hydrophilic cotton is a natural fiber material with the ability to absorb and retain water. Its affinity for water can be increased through chemical treatment.

[0147] A resin diaphragm is a thin film made of synthetic resin, which can be a single material or a composite material.

[0148] The resin diaphragm has high selective permeability, allowing ions to pass through but preventing electrons from passing through directly. In this way, the movement of ions between the positive electrode 10' side and the negative electrode 10" side can be avoided without affecting the short circuit between the positive electrode 10' side and the negative electrode 10" side.

[0149] In this embodiment, the material composition of the insulating layer 103 facilitates improved operational safety of the electrode assembly and is cost-effective. The insulating layer 103 can be made of either hydrophilic cotton or a resin diaphragm alone, or a combination of both. For example, a layer of hydrophilic cotton can be placed above and below the insulating resin diaphragm to improve ion conduction efficiency.

[0150] In some embodiments, the insulating layer 103 includes a resin diaphragm, wherein the resin in the resin diaphragm includes at least one of polyethylene, polypropylene, and polyester.

[0151] Polyethylene (PE) has good chemical stability and corrosion resistance.

[0152] Polypropylene (PP) has good chemical stability, low cost and high melting point.

[0153] Polyesters (such as PET) have high mechanical strength and can provide thinner diaphragm thicknesses.

[0154] In this embodiment, the resin in the resin diaphragm can be one of polyethylene, polypropylene, or polyester, or a combination of at least two of them. Composite materials can make good use of the characteristics of each material to improve the safety and functionality of the resin diaphragm.

[0155] In some embodiments, the household appliance includes a control board for adjusting the voltage applied to the electrode assembly by the power module based on the acquired water hardness information.

[0156] The control board can serve as the main control structure for home appliances, controlling their operation, such as their running time and operating mode.

[0157] The water hardness information is used to characterize the hardness of the water source connected to the first water inlet channel 2.

[0158] Based on the water hardness information, the hardness status of the water source can be obtained, so as to determine the range of water hardness adjustment that needs to be determined. By adjusting the voltage applied to the electrode assembly by the power module, the electrostatic field strength generated by the electrode assembly is adjusted, thereby adjusting the removal degree of calcium and magnesium ions, and adjusting the water hardness to the required range.

[0159] In this embodiment, the voltage applied to the electrode assembly is intelligently adjusted based on the obtained water hardness information to obtain the required water hardness, thereby achieving the optimal working state of the household appliance, for example, obtaining the maximum cleaning rate or the best sterilization and wrinkle removal effect.

[0160] There are no restrictions on the methods used to obtain water hardness information.

[0161] For example, in some embodiments, the household appliance includes a network module, which is used to obtain water hardness information corresponding to the current address of the household appliance from the network side.

[0162] For example, the network module can perform geolocation by using its IP address after connecting to a home Wi-Fi network, or it can obtain the installation location information or current address of the home appliance manually entered by the user. Based on the current address information of the home appliance, the network module can send a request to a specific service provider to obtain the latest water quality report for the area, thereby obtaining water hardness data. The control board can analyze and adjust the operating mode of the home appliance based on the water hardness information obtained by the network module. If the hardness is too high, the voltage applied by the power module to the electrode assembly is increased; if the hardness is too low, the voltage applied by the power module to the electrode assembly is decreased.

[0163] In some implementations, household appliances include water quality testing devices, which are used at least to detect the hardness of the water source and generate a detection signal, and the control board is used to obtain water hardness information based on the detection signal.

[0164] In this embodiment, the water quality detection device provides more accurate data and can monitor water quality changes in real time, enabling the control board to make more reasonable adjustments based on the actual situation.

[0165] For example, a water quality testing device may include sensors, such as conductivity sensors or ion-selective electrodes, to determine the concentration of calcium and magnesium ions in water. When water flows through the sensor, the sensor generates a detection signal based on the presence of specific ions in the water to reflect the water hardness level. The detection signal is transmitted to a control board, which can analyze and adjust the operating mode of the household appliances based on the detection signal. If the hardness is too high, the voltage applied by the power module to the electrode assembly is increased; if the hardness is too low, the voltage applied by the power module to the electrode assembly is decreased.

[0166] Understandably, network modules and water source detection devices can be used together to obtain more accurate information about water hardness.

[0167] In some embodiments, the household appliance has a drainage channel, and the wastewater outlet 1c is connected to the drainage channel.

[0168] Here, the drainage channel can be a channel for discharging wastewater from household appliances; for example, the drainage channel can be a channel for discharging washing wastewater.

[0169] Wastewater outlet 1c is used to discharge water containing calcium and magnesium ions.

[0170] In this embodiment, by connecting the wastewater outlet 1c to the drainage channel, water containing calcium and magnesium ions can be discharged together with the sewage generated after the household appliances are in operation, without the need to set up an additional drainage path, making the discharge of wastewater from household appliances simpler.

[0171] For example, when a household appliance is about to discharge wastewater, the positive electrode 10' and the negative electrode 10" can be short-circuited or reversed to regenerate the electrode plates. At the same time, water containing calcium and magnesium ions can be discharged through the wastewater outlet 1c. There is no need to set the electrode regeneration time. The electrode regeneration time is determined by the time when the household appliance discharges wastewater, and the wastewater in the container is discharged at the same time, which increases the ease of operation and reliability of the household appliance.

[0172] For example, the hardness of the water after softening by the water softener 1 can also be detected. If it exceeds a preset threshold, regeneration is performed to bring the hardness of the water after softening by the water softener 1 within the required range.

[0173] In some embodiments, please refer to Figure 4The household appliance includes an atomizing device 8 and a care chamber for accommodating the object to be cared for. The atomizing device 8 is connected to a first water inlet 2. A water softening device 1 is used to provide softened water to the atomizing device 8. The atomizing device 8 is used to generate an atomizing medium and provide the atomizing medium to the care chamber.

[0174] The items requiring care can be clothing, shoes, etc.

[0175] Here, the atomizing device 8 is located downstream of the water softening device 1. The softened water flows through the atomizing device 8 and can form an atomized medium under the action of the atomizing device 8 to provide care to the patient in the nursing cavity.

[0176] Taking a dryer or washer-dryer combo as an example, the care chamber is the garment processing chamber 7. When the drying function is activated, the atomizing device 8 can atomize the water to be softened into fine droplets. These droplets can be evenly distributed on the surface of the clothes, thereby improving the care effects of deodorizing, sterilizing, and wrinkle-removing the clothes. Using the atomizing device 8 can reduce damage to sensitive materials (such as wool and silk).

[0177] In this embodiment, the atomizing device 8 and the water softening device 1 work together to enable the atomizing device 8 to atomize the softened water without the need for additional media. This allows the softened water to have better deodorizing, sterilizing, and wrinkle-reducing effects after atomization, thus improving the performance of household appliances.

[0178] The atomization method of atomizing device 8 is not limited.

[0179] In some embodiments, the atomizing device 8 includes a heating structure for heating water within the atomizing device 8 to generate water vapor.

[0180] In this embodiment, the heating structure heats the softened water using an electric heating element, causing the water to reach its boiling point and convert it into steam. The steam can be directed onto the object to be cared for, such as clothing, using the high temperature to kill bacteria, viruses, and other microorganisms. The atomizing device 8 in this embodiment utilizes high-temperature steam, which has a strong bactericidal ability, effectively removing bacteria from the object to be cared for, such as clothing, and accelerating the drying process of the clothing.

[0181] In other embodiments, the atomizing device 8 includes an ultrasonic atomizer for ultrasonically atomizing water within the atomizing device 8 to produce water mist.

[0182] In this embodiment, the ultrasonic atomizer uses high-frequency vibration to generate microbubbles. When these bubbles burst in softened water, they disperse the softened water into fine particles, forming a water mist. The atomizing device 8 in this embodiment generates water mist particles that can evenly cover the surface of the object to be cared for, such as clothing, and is suitable for sensitive clothing.

[0183] In some other embodiments, the atomizing device 8 includes an atomizing nozzle for dispersing the water stream into a water mist.

[0184] In this embodiment, the atomizing nozzle disperses softened water into fine droplets using a high-pressure pump or other mechanical means to form a water mist. The atomizing device 8 in this embodiment features a simple atomizing nozzle technology, low manufacturing cost, and ease of maintenance.

[0185] In some embodiments, please refer to Figure 3 The household appliance includes a second water inlet 3 for connecting to a water source. The second water inlet 3 does not flow through the water softener 1.

[0186] In other words, household appliances can provide water to the water softener 1 through the first water inlet 2, so that the water softener 1 can soften the water, and can also directly supply unsoftened water through the second water inlet 3.

[0187] When water softening is not required, household appliances can directly draw water through the second water inlet 3, without flowing to the first water inlet 2. When water softening is required, household appliances can draw water only through the first water inlet 2, or simultaneously through both the first and second water inlets 3 to increase water intake efficiency. At the same time, the two water inlets can also adjust the water hardness by mixing unsoftened and softened water to obtain the desired water hardness.

[0188] For example, taking a household appliance as a clothing treatment device, the clothing treatment device can introduce water into the clothing treatment chamber 7 through the first water inlet 2 and the second water inlet 3. The softening device softens the water in the first water inlet 2 before it enters the clothing treatment chamber 7. The water in the second water inlet 3 flows directly into the clothing treatment chamber 7. The softened water and the unsoftened water can mix in the clothing treatment chamber 7 to achieve the target washing hardness in order to obtain the best washing effect.

[0189] It should be noted that the water in the second water inlet 3 can pass through the detergent dispensing device or not; there is no restriction here.

[0190] In some embodiments, please refer to Figure 3 The first water inlet channel 2 includes a first sub-section 21, and the second water inlet channel 3 includes a second sub-section 31; the household appliance includes a first valve 4 and a second valve 5. The first valve 4 is located in the first sub-section 21 and upstream of the water softener 1, and the second valve 5 is located in the second sub-section 31. The first valve 4 is used to open or close the first sub-section 21, and the second valve 5 is used to open or close the second sub-section 31.

[0191] In other words, when the first valve 4 closes the first sub-section 21, the water softening device 1 will not receive water, meaning it will not soften the water. When the first valve 4 opens the first sub-section 21, the water softening device 1 receives water and can soften the water. When the second valve 5 closes the second sub-section 31, the second water inlet channel 3 will not receive water. When the second valve 5 opens the second sub-section 31, the second water inlet channel 3 receives water.

[0192] In this embodiment, the opening and closing of the first sub-section 21 and the second sub-section 31 are achieved through the setting of the first valve 4 and the second valve 5, thereby facilitating the adjustment of the water intake of household appliances according to actual conditions and increasing the operational flexibility of household appliances. For example, when pure soft water is needed, the first valve 4 opens the first sub-section 21 and the second valve 5 closes the second sub-section 31; when water softening is not needed, the first valve 4 closes the first sub-section 21 and the second valve 5 opens the second sub-section 31; when water within a certain hardness range is needed and the water intake efficiency is improved, the first valve 4 opens the first sub-section 21 and the second valve 5 opens the second sub-section 31.

[0193] In some embodiments, the valve core opening of the first valve 4 is adjustable, and the valve core opening of the second valve 5 is adjustable. By adjusting the valve core opening of the first valve 4 and / or the second valve 5, the water hardness of the water mixed in the first water inlet channel 2 and the second water inlet channel 3 can be adjusted.

[0194] For example, the flow rate of water in the first sub-section 21 can be adjusted by adjusting the valve core opening of the first valve 4; the flow rate of water in the second sub-section 31 can be adjusted by adjusting the valve core opening of the second valve 5.

[0195] In this embodiment, when water enters the first inlet water passage 2 and the second inlet water passage 3 simultaneously, the flow rates of unsoftened and softened water can be adjusted by regulating the opening of one of the first valves 4 and the second valve 5, or by simultaneously adjusting the openings of the first valves 4 and the second valve 5. This regulates the ratio of unsoftened to softened water in the mixed water, thereby obtaining the target water hardness and achieving the optimal working effect of the household appliances. In this embodiment, the first valve 4 and the second valve 5 can be used to adapt to different working conditions and obtain different target water hardness, increasing the operational flexibility of the household appliances.

[0196] In some embodiments, both the first valve 4 and the second valve 5 are electrically connected to the control main board, which is used to control the valve core opening of the first valve 4 and / or the valve core opening of the second valve 5 according to the water hardness information.

[0197] In this embodiment, after obtaining water hardness information, the control board can analyze how to adjust the opening of the first valve 4 and the second valve 5 based on this information. If the water is hard, the opening of the first valve 4 can be increased to increase the inflow rate of the water softener 1. If the water is soft, the opening of the second valve 5 can be decreased or even closed to achieve the target hardness. In this embodiment, the control board can achieve precise control, ensuring optimal results each time it is used. The automated control process enables household appliances to operate more efficiently and extends their service life.

[0198] In some embodiments, please refer to Figure 3 A portion of the first water inlet channel 2 and a portion of the second water inlet channel 3 share the same common waterway 6, and the ends of the first sub-segment 21 and the second sub-segment 31 are both connected to the common waterway 6.

[0199] In this embodiment, when water enters from the first water inlet channel 2 and the second water inlet channel 3 simultaneously, the softened water and the unsoftened water can mix in the common water channel 6. At this time, the hardness of the mixed water can be detected in the common water channel 6 to determine whether the hardness of the mixed water meets the target range. Of course, the pre-mixed water can be processed together with the object to be treated, increasing the processing efficiency.

[0200] Taking a household appliance as an example of a clothing processing device, when the clothing processing device performs the washing function, the detergent dispensing device can be placed on the public water passage 6 or placed on the first water inlet water passage 2 and located downstream of the water softening device 1. The softened water and the unsoftened water are mixed in the public water passage 6 and then enter the clothing processing chamber 7 to wash the clothes.

[0201] This application provides a method for controlling household appliances.

[0202] It is understood that this control method can be applied to household appliances in any of the above embodiments.

[0203] The household appliance includes a first water inlet channel 2 and a water softening device 1 installed on the first water inlet channel 2.

[0204] Please see Figure 5 The control methods include:

[0205] S201: In response to the soft water start command.

[0206] S202: The control power module applies voltage to the electrode assembly of the water softener 1 so that the water softener 1 performs softening treatment on the water flowing through the first water inlet channel 2.

[0207] Here, the water softening start command can be applied by the control motherboard. The water softening start command indicates that the water needs to be softened. At this time, the first water inlet channel 2 receives water from the water source (e.g., tap water), and the unsoftened water flows to the water softening device 1 through the first water inlet channel 2.

[0208] Here, the control motherboard can control the power module to apply voltage to the electrode assembly of the water softener 1, so that the electrode plates of the water softener 1 can obtain electrical energy, thereby generating an electrostatic field, which adsorbs calcium and magnesium ions in the water to produce soft water.

[0209] In this embodiment, water is softened by electro-adsorption, thereby improving the performance of household appliances, such as enhancing the washing capacity of washing machines and dishwashers or the clothing care effect of dryers. The control method is simple and convenient.

[0210] In some embodiments, the control method further includes:

[0211] Obtain information on water hardness.

[0212] The control power module applies voltage to the electrode assembly of the water softening device 1, including: obtaining a voltage corresponding to the water source hardness information based on the water source hardness information, and applying the voltage corresponding to the water source hardness information to the water softening device 1.

[0213] Here, the water hardness information is used to characterize the hardness of the water source connected to the first water inlet channel 2, or it can be the hardness of the water source at the location of the household appliance.

[0214] Here, based on the acquired water hardness information, the required hardness adjustment range for the water source can be determined, i.e., the degree of softening can be known. This can be calculated and analyzed by the control motherboard. By adjusting the voltage applied to the water softening device 1 by the power module, the electrostatic field strength generated by the electrode assembly can be adjusted, thereby obtaining the desired water hardness.

[0215] In some embodiments, the control method further includes:

[0216] Based on the regeneration command, the control power module applies a reverse voltage to the water softener 1 so that the electrode assembly of the water softener 1 performs reverse polarity regeneration.

[0217] Here, the regeneration command can be issued by the control motherboard.

[0218] Here, after the power module applies a reverse voltage to the electrode assembly, the direction of the electrostatic field generated by the positive electrode 10' and the negative electrode 10" changes, so that the ions adsorbed on the positive electrode 10' and the negative electrode 10" are removed by the opposite action of the electrode plates, thus realizing the regeneration of the electrode assembly.

[0219] In this embodiment, the electrode assembly can be maintained through reverse polarity regeneration, ensuring the electrode plates remain in efficient operation. It is understood that during reverse polarity regeneration, the water in the container can be discharged through wastewater outlet 1c.

[0220] In some embodiments, the control method includes:

[0221] Obtain the hardness of the produced water after it has been treated by the water softening device 1.

[0222] The hardness of the produced water is compared with a preset threshold. If the hardness of the produced water is higher than the preset threshold, a regeneration command is generated.

[0223] Here, the hardness of the produced water after treatment by the water softener 1 can be detected by means of conductivity sensors and the like.

[0224] Here, the preset threshold refers to the maximum value of the hardness of the produced water within the required range after water softening treatment. If the actual hardness of the produced water exceeds the preset threshold, and the applied voltage is within the preset range, it indicates that the working efficiency of the electrode plate of the water softening device 1 is reduced and the adsorption state of the electrode plate is close to saturation. At this time, a regeneration command is generated to desorb and regenerate the electrode plate, and then the regenerated electrode assembly is subjected to water softening treatment to obtain a water hardness that does not exceed the preset threshold.

[0225] In this embodiment, by comparing the hardness of the produced water with a preset threshold to determine whether regeneration is necessary, the maintenance reliability of the water softener 1 can be increased, and the hardness of the obtained produced water can be monitored, thereby increasing the operational reliability of household appliances.

[0226] In some embodiments, the household appliance includes an atomizing device 8 and a care chamber for accommodating the object to be cared for, a soft water device 1 for supplying softened water to the atomizing device 8, and the atomizing device 8 for supplying an atomizing medium to the care chamber;

[0227] The preset threshold is no more than 10 mg / L.

[0228] Here, the object to be cared for can be clothing, shoes, etc., and the care cavity can be the clothing processing cavity 7.

[0229] Here, the atomizing device 8 can provide the atomizing medium through a heating structure, an ultrasonic atomizer, or an atomizing nozzle, etc.

[0230] Here, the preset threshold of no more than 10 mg / L means that the total amount of metal ions such as calcium and magnesium in each liter of water does not exceed 10 mg.

[0231] In other words, when it is necessary to care for the object being cared for, the hardness of the water softened by the water softener 1 should not exceed 10 mg / L, which is in the range of extremely soft water. At this time, the softened water can be atomized by the atomizing device 8 to remove odors, sterilize, and remove wrinkles from the object being cared for, such as clothing. This preset threshold range can ensure that the care effect of the object being cared for is good and that household appliances are in the best working condition.

[0232] For example, the preset threshold can be 10 mg / L, 9.5 mg / L, 9 mg / L, 8.8 mg / L, 8.4 mg / L, 8 mg / L, 7.6 mg / L, 7 mg / L, 6 mg / L, 5 mg / L, 4 mg / L, 3 mg / L, etc.

[0233] In some embodiments, the household appliance includes a switching valve disposed on a first water inlet passage 2 between the atomizing device 8 and the water softening device 1.

[0234] The control method also includes: if the hardness value of the produced water is higher than the preset threshold, the switch valve is closed; if the hardness value of the produced water is not higher than the preset threshold, the switch valve is opened.

[0235] Here, the switch valve can open or close the water path from the water softener 1 to the first inlet water path 2. When the hardness of the produced water is higher than the preset threshold, indicating that the hardness of the produced water is not within the required range, the switch valve is closed to prevent the softened water from flowing to the atomizing device 8. At this time, the softening efficiency of the electrode assembly can be increased by executing a regeneration command and discharging wastewater. When the hardness of the produced water is not higher than the preset threshold, the switch valve is opened to allow the softened water to flow to the atomizing device 8. The atomizing device 8 can then perform atomization and care for the object to be cared for, so that the household appliance is in the best care condition.

[0236] In some embodiments, the household appliance includes a second water inlet 3 for connecting to a water source, and the second water inlet 3 does not flow through the water softener 1.

[0237] Control methods also include:

[0238] Adjust the flow rate of the first water inlet 2 and / or the second water inlet 3 so that the hardness value of the mixed water after the water produced by the softening device 1 in the first water inlet 2 and the water in the second water inlet 3 are within a preset range.

[0239] Here, when water enters the first water inlet channel 2 and the second water inlet channel 3 at the same time, the flow rate of one of the first water inlet channel 2 and the second water inlet channel 3 or both of them can be adjusted to adjust the ratio of unsoftened water and softened water in the mixed water, so that the hardness of the mixed water is within a preset range, thereby obtaining the target water hardness and achieving the best working effect of the household appliance. For example, the laundry processing equipment can obtain the maximum washing rate.

[0240] In some embodiments, the preset range is 50 mg / L to 120 mg / L. That is, the hardness of the mixed water needs to be between 50 mg / L and 120 mg / L, and the total amount of metal ions such as calcium and magnesium in each liter of water should not exceed 120 mg and should not be less than 50 mg.

[0241] In this embodiment, setting the required hardness range of the mixed water can effectively remove dirt while reducing damage to the target object, such as reducing damage to clothing and reducing color bleeding, so that the household appliance can achieve the best working effect. For example, it enables the clothing treatment equipment to achieve the best cleaning effect.

[0242] In some embodiments, the control method includes:

[0243] Obtain water hardness information;

[0244] Adjusting the flow rate of the first water inlet channel 2 and / or the second water inlet channel 3 includes: obtaining the flow rate ratio of the first water inlet channel 2 and the second water inlet channel 3 based on the water hardness information, and adjusting the flow rate of the first water inlet channel 2 and / or the flow rate of the second water inlet channel 3 based on the flow rate ratio.

[0245] Here, the hardness information of the acquired water source can be analyzed by controlling the mainboard to determine the required hardness of the mixed water. Then, by adjusting the flow ratio of unsoftened water and softened water, the final required hardness of the mixed water can be obtained.

[0246] Here, by coordinating the synchronous water intake of the first water inlet channel 2 and the second water inlet channel 3, and by controlling the proportion, the required hardness can be obtained while increasing the water intake efficiency.

[0247] In some embodiments, adjusting the flow rate of the first water inlet channel 2 and the second water inlet channel 3 includes:

[0248] Adjust the valve core opening of the first valve 4 on the first water inlet channel 2 and / or the valve core opening of the second valve 5 on the second water inlet channel 3.

[0249] Here, the first valve 4 is installed in the first water inlet passage 2, and the flow rate of the first water inlet passage 2 is adjusted by regulating the valve core opening of the first valve 4. The second valve 5 is installed in the second water inlet passage 3, and the flow rate of the second water inlet passage 3 is adjusted by regulating the valve core opening of the second valve 5. This achieves control over the flow rate of the first water inlet passage 2 and / or the second water inlet passage 3.

[0250] In some embodiments, the control method includes:

[0251] The hardness of the mixed water after mixing in the first inlet water passage 2 and the second inlet water passage 3, which are located downstream of the water softener 1, is obtained.

[0252] Based on the hardness of the mixed water, adjust the flow rate of the first inlet water path 2 and / or the second inlet water path 3 until the hardness of the mixed water after the product water from the first inlet water path 2 is treated by the softening water device 1 and the water from the second inlet water path 3 is within a preset range.

[0253] Here, the hardness of the mixed water can be obtained through the common water channel 6 shared by the first water inlet channel 2 and the second water inlet channel 3. Unsoftened water and softened water can be mixed in the common water channel 6, which can be equipped with a conductivity sensor to obtain the hardness of the mixed water.

[0254] If the hardness of the mixed water is not within the preset range, the flow rate of the first water inlet 2 and / or the second water inlet 3 will be adjusted until the hardness of the mixed water is within the preset range.

[0255] In this embodiment, the reliability of adjusting the hardness of the mixed water can be further increased, so that the hardness of the mixed water is within the required preset range.

[0256] In some embodiments, obtaining water hardness information includes:

[0257] Receive the detection signal obtained by the water quality testing device to detect the hardness of the water source, and obtain the water source hardness information based on the detection signal; or, obtain the water source hardness information corresponding to the current address of the household appliance from the network side.

[0258] Here, the water quality testing device may include sensors, such as conductivity sensors and ion-selective electrodes, to determine the concentration of calcium and magnesium ions in the water. When water flows through the sensor, the sensor generates a detection signal based on the presence of specific ions in the water to reflect the water's hardness level.

[0259] Here, you can obtain the water hardness data corresponding to the current address information of household appliances via the network.

[0260] The water hardness information from the water quality testing device or the water hardness information obtained from the network side is transmitted to the control motherboard. The control motherboard can analyze and adjust the working mode of the household appliances based on the detection signal, thereby adjusting the load voltage of the power module, or adjusting the flow rate of the first water inlet channel 2 and / or the second water inlet channel 3.

[0261] The following uses a household appliance as an example to briefly describe specific implementations of the control methods in the washing and drying states.

[0262] It is understandable that the washing mode can be executed by a washing machine or a washer-dryer combo, and the drying mode can be executed by a dryer or a washer-dryer combo.

[0263] Please see Figure 6 In washing mode:

[0264] S301: In response to soft water washing command.

[0265] S302: Obtain water hardness information.

[0266] Here, water hardness information can be detected through network modules and / or water quality testing devices.

[0267] S303: Adjust the flow rate of the first water inlet channel 2 and / or the second water inlet channel 3 based on the water hardness information.

[0268] Here, the flow rate of the first water inlet channel 2 and / or the second water inlet channel 3 can be adjusted by adjusting the opening of the first valve 4 and / or the second valve 5. The main control board can calculate the required flow rate of unsoftened water and softened water based on the water hardness information, thereby setting the valve opening of the first valve 4 and / or the second valve 5.

[0269] S304: Obtain the hardness of the mixed water after mixing in the first inlet water passage 2 and the second inlet water passage 3 located downstream of the water softener 1, and determine whether the hardness value of the mixed water is within the preset range.

[0270] Here, the preset range can be 50mg / L to 120mg / L.

[0271] S305: If so, inject mixed water into the garment processing chamber 7, and when the mixed water in the garment processing chamber 7 reaches the target water level, close the first water inlet 2 and the second water inlet 3.

[0272] Here, the hardness value of the mixed water is within the preset range, that is, the hardness of the mixed water meets the standard, and it can be injected into the garment treatment chamber 7 to achieve the best cleaning effect.

[0273] S306: If not, adjust the flow rate of the first water inlet channel 2 and / or the second water inlet channel 3.

[0274] Here, the hardness value of the mixed water is not within the preset range, meaning the hardness of the mixed water does not meet the standard, and the hardness of the mixed water needs to be adjusted.

[0275] S307: Drain the water after washing.

[0276] S308: Generate a reverse polarity regeneration command, open the first water inlet 2 and open the wastewater outlet 1c of the container, so that the wastewater in the container is discharged through the wastewater outlet 1c and the drainage channel of the clothing processing chamber 7.

[0277] Here, when the washing process ends and the wastewater is drained, the electrode assembly can be regenerated by reversing the electrode, and the washing wastewater and wastewater containing calcium and magnesium ions can be discharged at the same time.

[0278] S309: In response to the soft water rinsing command, open the first water inlet 2 and the second water inlet 3, and continue to execute steps S304, S305, and S306.

[0279] Here, the soft water rinsing process can be referred to as the washing process.

[0280] S310: After rinsing, drain the water and continue with step S308.

[0281] Please see Figure 7 In dry condition:

[0282] S401: Responds to the soft water drying instruction.

[0283] S402: Obtain water hardness information.

[0284] Here, water hardness information can be detected through network modules and / or water quality testing devices.

[0285] S403: Adjust the voltage applied to the electrode assembly by the power module based on the water hardness information.

[0286] Here, the control board can calculate the required hardness of the produced water based on the hardness information of the water source, and thus adjust the load voltage required by the water softener.

[0287] S404: Obtain the hardness of the water produced after softening in the water softening device 1, and determine whether the hardness of the softened water exceeds a preset threshold.

[0288] Here, the preset threshold is no more than 10 mg / L.

[0289] S405: If so, close the switch valve located between the water softener 1 and the atomizer 8, and generate a regeneration command.

[0290] Here, if the hardness of the produced water exceeds the preset threshold, the hardness of the produced water is not up to standard, causing the electrode assembly to perform reverse polarity regeneration to increase the soft water efficiency.

[0291] S406: Open the wastewater outlet 1c of the container to discharge the wastewater.

[0292] S407: If not, open the switch valve located between the water softener 1 and the atomizing device 8.

[0293] Here, if the hardness of the produced water does not exceed the preset threshold, then the hardness of the produced water meets the standard, and soft water can be delivered to the atomizing device 8.

[0294] S408: Control the atomizing device 8 to provide atomizing medium to the garment treatment chamber 7 for garment care.

[0295] In some embodiments, the household appliance includes a second water inlet 3 for connecting to a water source, and the second water inlet 3 does not flow through the water softener 1; the control method further includes:

[0296] Adjust the water inlet duration of the first water inlet path and / or the second water inlet path so that the hardness value of the mixed water after the product water from the first water inlet path is treated by the water softening device and the water from the second water inlet path is within a preset range.

[0297] The second water inlet channel 3 provides water from a water source, i.e., unsoftened water.

[0298] The water hardness of the water mixed in the first water inlet channel 2 and / or the second water inlet channel 3 can be adjusted by regulating the water inlet duration of the first water inlet channel 2 and / or the second water inlet channel 3.

[0299] In some embodiments, please refer to Figure 3 When the first valve 4 is closed (first sub-section 21), the water softener 1 will not receive water, meaning it will not soften the water. When the first valve 4 is open (first sub-section 21), the water softener 1 will receive water and soften it. When the second valve 5 is closed (second sub-section 31), the second water inlet 3 will not receive water. When the second valve 5 is open (second sub-section 31), the second water inlet 3 will receive water. Thus, the water inlet duration of the first water inlet 2 can be controlled by switching the first valve 4, and the water inlet duration of the second water inlet 3 can be controlled by switching the second valve 5.

[0300] Here, the preset range can be 50mg / L to 120mg / L.

[0301] In this embodiment, when water enters the first water inlet channel 2 and the second water inlet channel 3 simultaneously, the ratio of unsoftened water to softened water in the mixed water can be adjusted by regulating the water inlet duration of one or both of the first water inlet channel 2 and the second water inlet channel 3. This ensures that the hardness value of the mixed water is within a preset range, thereby achieving the target water hardness and optimizing the working effect of household appliances. For example, this enables the laundry cleaning equipment to achieve the maximum washing efficiency. Thus, by adjusting the water inlet duration of the first water inlet channel 2 and / or the second water inlet channel 3, the hardness value of the mixed water after the water from the first water inlet channel 2 (treated by the softening device 1) and the water from the second water inlet channel 3 is within a preset range.

[0302] The flow rate of the first water inlet channel 2 is unlimited. For example, the flow rate of the first water inlet channel 2 can be 3L / min.

[0303] The flow rate of the second water inlet channel 3 is unlimited. For example, the flow rate of the second water inlet channel 3 can be 5L / min.

[0304] In some embodiments, the water hardness of the second inlet water path 3 is 250 ppm, the washing water volume can be 20L, the water softening device 1 achieves an ion removal rate of 90%, the water inlet time of the first inlet water path 2 can be 1 minute, the water inlet time of the second inlet water path 3 can be 5 minutes, and the hardness value of the mixed water can be 80 ppm. In this way, the water softening device 1 provides softened water, the second inlet water path 3 provides unsoftened water, and the hardness value of the mixed water composed of softened water and unsoftened water can be 80 ppm, which can basically achieve the maximum washing ratio, and can also shorten the water inlet time and improve reliability.

[0305] In some embodiments, the household appliance includes a clothing handling chamber 7, and the control method includes:

[0306] Start the washing and rinsing program;

[0307] Based on the soft water start command, the control power module applies voltage to the electrode assembly of the soft water device so that the soft water device performs softening treatment on the water flowing through the first inlet water path to produce softened water.

[0308] During the washing stage, softened water is sent into the garment processing chamber to perform the washing.

[0309] Here, the mainboard may issue a soft water start command after the washing and rinsing programs are started.

[0310] In this embodiment, the washing and rinsing process includes a washing stage 100, in which detergent can be added and mixed with softened water to clean the clothes in the clothes handling chamber 7.

[0311] In some embodiments, the control method includes:

[0312] Start the washing and rinsing program;

[0313] Based on the soft water start command, the control power module applies voltage to the electrode assembly of the soft water device so that the soft water device performs softening treatment on the water flowing through the first inlet water path to produce softened water.

[0314] During the washing stage, softened water and water from the second water inlet are both sent into the garment processing chamber to perform the washing.

[0315] In this embodiment, the washing and rinsing process includes a washing stage 100, in which detergent can be added and a mixture of softened and unsoftened water is sent into the garment processing chamber 7. The mixed water is mixed with the detergent to clean the garments in the garment processing chamber 7.

[0316] In some embodiments, the control method includes:

[0317] Based on the regeneration command, the power module is controlled to apply a reverse voltage to the water softener, so that the electrode assembly of the water softener performs reverse regeneration to generate wastewater.

[0318] In at least one of the washing and rinsing stages, wastewater is fed into and discharged from the garment processing chamber and / or discharged through the drainage channel of the garment processing equipment.

[0319] In some embodiments, wastewater may be sent into and discharged from the garment processing chamber 7 during the washing stage 100; in some embodiments, wastewater may be sent into and discharged from the garment processing chamber 7 during the rinsing stage; in some embodiments, wastewater may be sent into and discharged from the garment processing chamber 7 during both the washing stage 100 and the rinsing stage.

[0320] In some embodiments, wastewater may be sent to the drain channel of the garment processing equipment and discharged during the washing stage 100; in some embodiments, wastewater may be sent to the drain channel of the garment processing equipment and discharged during the rinsing stage; in some embodiments, wastewater may be sent to the drain channel of the garment processing equipment and discharged during both the washing stage 100 and the rinsing stage.

[0321] In some embodiments, wastewater may be sent into the garment processing chamber 7 and the drainage channel of the garment processing device during the washing stage 100, and discharged through the garment processing chamber 7 and the drainage channel of the garment processing device; in some embodiments, wastewater may be sent into the garment processing chamber 7 and the drainage channel of the garment processing device during the rinsing stage, and discharged through the garment processing chamber 7 and the drainage channel of the garment processing device; in some embodiments, wastewater may be sent into the garment processing chamber 7 and the drainage channel of the garment processing device during both the washing stage 100 and the rinsing stage, and discharged through the garment processing chamber 7 and the drainage channel of the garment processing device.

[0322] Please see Figures 8 to 13 Washing stage 100 refers to the stage where detergent is added to clean the clothes in the clothes handling chamber 7, generating wastewater. Washing stage 100 includes three steps: water intake, main wash cleaning, and washing and dehydration. The water intake includes softened water; alternatively, in washing stage 100, softened water and water from the second water intake channel 3 can be simultaneously introduced into the clothes handling chamber 7 for washing. The main wash cleaning is the step where the detergent-containing liquid in the clothes handling chamber 7 comes into contact with the clothes, generating wastewater. Washing and dehydration is the step where the wastewater and other liquid substances in the clothes handling chamber 7 are discharged.

[0323] Please see Figures 8 to 13 The rinsing stage refers to the stage where detergent is diluted or removed from the clothes in the garment processing chamber 7 using clean water. The rinsing stage includes three steps: rinsing water intake, rinsing cleaning, and rinsing dehydration. The rinsing water intake can include softened water. Alternatively, both softened water and water from the second water intake channel 3 can be sent into the garment processing chamber 7 for rinsing; or only water from the second water intake channel 3 can be sent into the garment processing chamber 7 for rinsing. Rinsing cleaning is the step where the detergent-free liquid in the garment processing chamber 7 comes into contact with the clothes, generating rinsing wastewater. Rinsing dehydration is the step of draining the rinsing wastewater and other liquid substances from the garment processing chamber 7.

[0324] In this embodiment, after the washing and rinsing programs are started, the softened water can be used in the washing stage 100 and / or rinsing stage, and wastewater is generated through reverse polarity regeneration. Since the washing stage 100 requires washing and dehydration, and the rinsing stage requires rinsing and dehydration, the wastewater is sent into the garment processing chamber 7 or the drainage channel of the garment processing equipment in at least one of the washing stage 100 and the rinsing stage. The wastewater containing calcium and magnesium ions can be discharged outside the garment processing equipment through at least one of the washing and dehydration and rinsing and dehydration processes.

[0325] In some embodiments, the rinsing stage includes rinsing and cleaning and rinsing and dehydrating, during which wastewater is introduced into the garment processing chamber.

[0326] As an example, wastewater can be sent into the garment processing chamber 7 during the rinsing and cleaning process. Since the rinsing and cleaning time is short, wastewater containing calcium and magnesium ions can be sent into the garment processing chamber 7 during the rinsing and cleaning process. It can be rinsed and cleaned along with softened water and / or water from the second water inlet channel 3, which has almost no impact on the garments. After participating in the rinsing and cleaning process, the wastewater is discharged during the rinsing and dehydration process.

[0327] As an example, wastewater can be sent into the garment processing chamber 7 during the rinsing and dehydration process. In this way, wastewater containing calcium and magnesium ions can be discharged along with the rinsing wastewater during the rinsing and dehydration process without participating in the rinsing and cleaning process.

[0328] As an example, wastewater is introduced into the garment processing chamber 7 during the rinsing and dehydration processes. In some cases, the wastewater volume is large, and it can be introduced into the garment processing chamber 7 during the rinsing and dehydration processes. In some cases, wastewater generated during the washing stage 100 can enter the garment processing chamber 7 during the rinsing process; softened water is also used for rinsing, so the wastewater generated after rinsing can enter the garment processing chamber 7 during the dehydration process.

[0329] In this embodiment, rinsing and cleaning is the step of generating rinsing wastewater by contacting the clothes with water without detergent in the clothes processing chamber 7. Rinsing and dehydration is the step of discharging rinsing wastewater and other liquid substances from the clothes processing chamber 7. During rinsing and cleaning and / or rinsing and dehydration, wastewater is sent into the clothes processing chamber 7, and all wastewater can be discharged outside the clothes processing equipment through rinsing and dehydration.

[0330] In some embodiments, the household appliance includes a second water inlet 3 for connecting to a water source, wherein the second water inlet 3 does not flow through the softened water device;

[0331] During the rinsing stage, one of the following is sent into the garment processing chamber: softened water, a mixture of softened water and water from the second water inlet, and water from the second water inlet.

[0332] In some embodiments, softened water is introduced into the garment processing chamber 7 during the rinsing stage. Specifically, softened water is introduced into the garment processing chamber 7 during the rinsing water intake step, thereby using the softened water to rinse the clothes.

[0333] In some embodiments, during the rinsing stage, a mixture of softened water and water from the second water inlet 3 is introduced into the garment processing chamber 7. Specifically, in the rinsing water intake step, softened water and water from the second water inlet 3 are introduced into the garment processing chamber 7, thus utilizing both softened water and water from the water source to rinse the clothes.

[0334] In some embodiments, during the rinsing stage, water from the second water inlet 3 is introduced into the garment processing chamber 7. Specifically, during the rinsing water intake step, water from the second water inlet 3 is introduced into the garment processing chamber 7, thus using water from the water source to rinse the clothes instead of using softened water.

[0335] In this embodiment, softened water, mixed water, and water from the second water inlet 3 can be used to rinse the clothes.

[0336] In some embodiments, the rinsing stage is a single step. That is, a single rinsing is used in the washing and rinsing process.

[0337] In some embodiments, there are multiple rinsing stages. Here, "multiple" can mean two or more, that is, two or more rinsing stages are used in the washing and rinsing process.

[0338] In some embodiments, taking two rinsing stages as an example, in the first rinsing stage 200, one of the softened water and the mixed water consisting of softened water and water from the second water inlet 3 is sent into the garment processing chamber 7. In the second rinsing stage 300, water from the second water inlet 3 is sent into the garment processing chamber 7.

[0339] In some embodiments, taking two rinsing stages as an example, wastewater can be sent into the garment processing chamber 7 and discharged in the first rinsing stage 200 or the second rinsing stage 300.

[0340] In some embodiments, taking two rinsing stages as an example, wastewater can be sent into the garment processing chamber 7 and discharged during the first rinsing stage 200 and the second rinsing stage 300.

[0341] The control methods of this application are further described below with several examples.

[0342] Example 1

[0343] Please see Figure 8 Softened water is used for the main wash cleaning in washing stage 100, meaning that softened water and detergent are used for the main wash cleaning. In the first rinse stage 200 and the second rinse stage 300, water from the second water inlet 3 is sent into the garment processing chamber 7, meaning that unsoftened water is used for the two rinse cleaning processes.

[0344] During the first rinsing stage 200, the wastewater is sent into the garment processing chamber 7 and then discharged. In other words, the wastewater does not participate in the rinsing and cleaning process, but is discharged out of the garment processing equipment along with the rinsing wastewater during the rinsing and dehydration process.

[0345] At the start of the first rinsing stage 200, reverse polarity regeneration immediately begins, and wastewater and rinsing wastewater can be discharged simultaneously. Specifically: after the rinsing water intake of the first rinsing stage 200 is completed, reverse polarity regeneration immediately begins (soft water device 1 does not take in water); when the rinsing cleaning of the first rinsing stage 200 begins, soft water device 1 begins to take in water and generate wastewater, and rinsing cleaning and reverse polarity regeneration end simultaneously; when the rinsing dehydration of the first rinsing stage 200 begins, wastewater enters the garment processing chamber 7, and wastewater and rinsing wastewater can be discharged simultaneously.

[0346] Example 2

[0347] Please see Figure 9 Softened water is used for the main wash cleaning in washing stage 100, meaning that softened water and detergent are used for the main wash cleaning. In the first rinse stage 200 and the second rinse stage 300, water from the second water inlet 3 is sent into the garment processing chamber 7, meaning that unsoftened water is used for the two rinse cleaning processes.

[0348] During the first rinsing stage 200, wastewater is sent into the garment processing chamber 7 and then discharged. In other words, unsoftened water and wastewater participate in the rinsing and cleaning process together, and are then discharged outside the garment processing equipment during the rinsing and dehydration process.

[0349] Immediately after washing and dehydration, reverse polarity regeneration begins, and the wastewater participates in the rinsing and cleaning of the first rinsing stage 200. Specifically: immediately after washing and dehydration, reverse polarity regeneration begins (the water softener 1 does not take in water); at the beginning of the rinsing and cleaning of the first rinsing stage 200, the water softener 1 begins to take in water and generates wastewater; during the rinsing and cleaning process of the first rinsing stage 200, the wastewater is sent into the garment processing chamber 7, and the wastewater participates in the rinsing and cleaning; after the rinsing and cleaning is completed, the wastewater is discharged as part of the rinsing wastewater through the rinsing and dehydration of the first rinsing stage 200.

[0350] Example 3

[0351] Please see Figure 10 Softened water is used for the main wash cleaning in washing stage 100, meaning that softened water and detergent are used for the main wash cleaning. In the first rinse stage 200 and the second rinse stage 300, water from the second water inlet 3 is sent into the garment processing chamber 7, meaning that unsoftened water is used for the two rinse cleaning processes.

[0352] During the washing and dehydration process of the washing stage 100, wastewater is sent into the garment processing chamber 7 and discharged. In other words, the wastewater does not participate in the main washing and rinsing cleaning, but is discharged to the outside of the garment processing equipment along with the washing wastewater during the washing and dehydration process.

[0353] After the washing cycle ends, the reverse polarity regeneration begins immediately, and the wastewater is discharged simultaneously with the washing wastewater. Specifically: after the washing cycle ends, the reverse polarity regeneration begins immediately (the water softener 1 does not take in water); after the washing and cleaning cycle ends, the water softener 1 begins to take in water and generates wastewater, which enters the garment processing chamber 7 and is discharged simultaneously with the washing wastewater through the washing and dehydration process.

[0354] Example 4

[0355] Please see Figure 11 Softened water is used for the main wash cleaning in washing stage 100, meaning that softened water and detergent are used for the main wash cleaning. In the first rinse stage 200 and the second rinse stage 300, water from the second water inlet 3 is sent into the garment processing chamber 7, meaning that unsoftened water is used for the two rinse cleaning processes.

[0356] During the washing and dehydration process of the washing stage 100, the wastewater is sent into the drainage channel of the clothing processing equipment and discharged. In other words, the wastewater does not enter the clothing processing chamber 7, but is directly discharged to the outside of the clothing processing equipment.

[0357] After the washing and water intake are completed, the reverse polarity regeneration begins immediately, and water is introduced into the water softener 1. The wastewater is directly sent into the drainage channel and discharged outside the clothing processing equipment.

[0358] Example 5

[0359] Please see Figure 12 Softened water is used for the main wash cleaning in washing stage 100, meaning that softened water and detergent are used for the main wash cleaning. In the first rinse stage 200, a mixture of softened water and water from the second water inlet 3 is sent into the garment processing chamber 7, meaning that softened water and unsoftened water are mixed together for the first rinse cleaning in rinsing stage 200. In the second rinse stage 300, water from the second water inlet 3 is sent into the garment processing chamber 7, meaning that unsoftened water is mixed together for the second rinse cleaning in rinsing stage 300.

[0360] During the rinsing and dehydration process in the first rinsing stage 200, the rinsing and cleaning process in the second rinsing stage 300, and the rinsing and dehydration process in the second rinsing stage 300, wastewater is sent into the garment processing chamber 7 and the drainage channel of the garment processing equipment and discharged. That is to say, some wastewater participates in the rinsing and cleaning process in the second rinsing stage 300, and the remaining wastewater can be discharged outside the garment processing equipment through the rinsing and dehydration process in the first rinsing stage 200, the rinsing and dehydration process in the second rinsing stage 300, and the drainage channel.

[0361] Example 6

[0362] Please see Figure 13Softened water is used for the main wash cleaning in washing stage 100, meaning that softened water and detergent are used for the main wash cleaning. In the first rinse stage 200, a mixture of softened water and water from the second water inlet 3 is sent into the garment processing chamber 7, meaning that softened water and unsoftened water are mixed for the first rinse cleaning in rinsing stage 200. In the second rinse stage 300, a mixture of softened water and water from the second water inlet 3 is sent into the garment processing chamber 7, meaning that softened water and unsoftened water are mixed for the second rinse cleaning in rinsing stage 300.

[0363] During the second rinsing stage 300, the wastewater is sent into the garment processing chamber 7 and the outlet of the garment processing equipment and then discharged. In other words, the wastewater does not participate in the rinsing and cleaning process and can be discharged outside the garment processing equipment through the rinsing and dehydration and drainage channels of the second rinsing stage 300.

[0364] Here, in Examples 1, 2, 3, 4, 5, and 6, the water softener 1 has sufficient time for regeneration. Examples 1, 2, 3, and 4 are all suitable for quick washes.

[0365] In some embodiments, the duration of reverse polarity regeneration may be no less than 10 minutes. For example, the duration of reverse polarity regeneration may be 10 minutes, 15 minutes, or 20 minutes, etc.

[0366] For example, in Examples 1, 2, 3, 4, 5, and 6, the duration of reverse polarity regeneration can be no less than 10 minutes.

[0367] In the description of this application, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the embodiments of this application. In this application, the illustrative expressions 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 suitable manner in one or more embodiments or examples. Furthermore, without contradiction, those skilled in the art can combine different embodiments or examples described in this application, as well as features of different embodiments or examples.

[0368] The above description is merely a preferred embodiment of this application and is not intended to limit the application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of protection of this application.

Claims

1. A water softening device, characterized in that, For use in household appliances, including: The container has a first inlet and a first outlet. An electrode assembly is disposed within the container. The electrode assembly includes an insulating layer and at least two electrode plates, the at least two electrode plates including a positive electrode plate and a negative electrode plate, and a water passage for accommodating the insulating layer is formed between adjacent positive electrode plates and negative electrode plates. The electrode sheet includes a current collector and an adsorption layer, wherein the adsorption layer is at least disposed on the surface of the current collector facing the water passage. The positive electrode and the negative electrode are used to create an electrostatic field in the water passage when energized, and the adsorption layer is used to adsorb ions in the water flowing through the water passage under the action of the electrostatic field.

2. The water softening device according to claim 1, characterized in that, The electrode sheet further includes an ion exchange membrane disposed on the side of the adsorption layer away from the current collector, and the ion exchange membrane is used to allow ions of opposite polarity to pass through the electrode sheet in which it is located; And / or, the container has a wastewater outlet.

3. The water softening device according to claim 1, characterized in that, The current collector includes at least one of graphite paper, carbon paper, and metal mesh; and / or the adsorption layer includes at least one of activated carbon, carbon felt, and carbon cloth.

4. The water softening device according to claim 1, characterized in that, The adsorption layer comprises carbon cloth with a thickness of 0.02 mm to 0.5 mm; or, the adsorption layer comprises carbon felt with a thickness of 0.5 mm to 4 mm.

5. The water softening device according to claim 1, characterized in that, The insulating layer includes hydrophilic cotton and / or a resin diaphragm.

6. The water softening device according to claim 1, characterized in that, The insulating layer includes a resin membrane, wherein the resin in the resin membrane includes at least one of polyethylene, polypropylene, and polyester.

7. A household appliance, characterized in that, include: The first water inlet channel is used to connect to the water source; Power module; And the water softening device according to any one of claims 1-6, wherein the water softening device is disposed in the first water inlet channel, and the power module is electrically connected to the electrode assembly of the water softening device for supplying power to the electrode assembly.

8. The household appliance according to claim 7, characterized in that, The household appliance includes a control board, which is used to adjust the voltage applied to the electrode assembly by the power module based on the acquired water hardness information.

9. The household appliance according to claim 8, characterized in that, The household appliance includes a network module, which is used to obtain water hardness information corresponding to the current address of the household appliance from the network side; and / or, the household appliance includes a water quality detection device, which is at least used to detect the hardness of the water source and generate a detection signal, and the control motherboard is used to obtain the water hardness information based on the detection signal.

10. The household appliance according to claim 7, characterized in that, The container has a wastewater outlet, the household appliance has a drainage channel, and the wastewater outlet is connected to the drainage channel.

11. The household appliance according to claim 7, characterized in that, The household appliance includes an atomizing device and a care chamber for accommodating the object to be cared for. The atomizing device is connected to the first water inlet. The water softening device is used to provide softened water to the atomizing device. The atomizing device is used to generate an atomizing medium and provide the atomizing medium to the care chamber.

12. The household appliance according to claim 11, characterized in that, The atomizing device includes a heating structure for heating water within the atomizing device to generate water vapor; or, the atomizing device includes an ultrasonic atomizer for ultrasonically atomizing water within the atomizing device to generate water mist; or, the atomizing device includes an atomizing nozzle for dispersing water flow into water mist.

13. The household appliance according to claim 7, characterized in that, The household appliance includes a second water inlet for connecting to a water source, and the second water inlet does not flow through the water softener.

14. The household appliance according to claim 13, characterized in that, The first water inlet channel includes a first sub-section, and the second water inlet channel includes a second sub-section; The household appliance includes a first valve and a second valve. The first valve is disposed in the first sub-section and located upstream of the water softening device, and the second valve is disposed in the second sub-section. The first valve is used to open or close the first sub-section, and the second valve is used to open or close the second sub-section.

15. The household appliance according to claim 14, characterized in that, The valve core opening of the first valve is adjustable, and the valve core opening of the second valve is adjustable. By adjusting the valve core opening of the first valve and / or the second valve, the water hardness of the water mixed in the first inlet water passage and the second inlet water passage can be adjusted.

16. The household appliance according to claim 15, characterized in that, The household appliance includes a control board, and the first valve and the second valve are both electrically connected to the control board. The control board is used to control the valve core opening of the first valve and / or the valve core opening of the second valve according to the water hardness information.

17. The household appliance according to claim 14, characterized in that, A portion of the first water inlet channel and a portion of the second water inlet channel share the same common waterway, and the ends of both the first and second sub-segments are connected to the common waterway.

18. The household appliance according to any one of claims 7-17, characterized in that, The household appliances include at least one of the following: clothing processing equipment, dishwasher, shoe washing machine, fruit and vegetable washing machine, and water purifier.

19. A method for controlling a household appliance, characterized in that, The household appliance includes a first water inlet circuit and a water softening device installed on the first water inlet circuit, and the control method includes: Responding to the soft water start command; The control power module applies voltage to the electrode assembly of the water softener so that the water softener can perform softening treatment on the water flowing through the first inlet water path.

20. The control method according to claim 19, characterized in that, The control method further includes: Obtain water hardness information; The control power module applies voltage to the electrode assembly of the water softener by: obtaining a voltage corresponding to the water hardness information based on the water hardness information, and controlling the power module to apply the voltage corresponding to the water hardness information to the water softener.

21. The control method according to claim 19, characterized in that, The control method further includes: Based on the regeneration command, the power module is controlled to apply a reverse voltage to the water softener, so that the electrode assembly of the water softener performs reverse polarity regeneration.

22. The control method according to claim 19, characterized in that, The control method includes: To obtain the hardness of the product water after it has been treated by a water softening device; The hardness of the produced water is compared with a preset threshold. If the hardness of the produced water is higher than the preset threshold, a regeneration command is generated.

23. The control method according to claim 22, characterized in that, The household appliance includes an atomizing device and a care chamber for accommodating the object to be cared for; the water softening device is used to provide softened water to the atomizing device, and the atomizing device is used to provide an atomizing medium to the care chamber. The preset threshold is no more than 10 mg / L.

24. The control method according to claim 22, characterized in that, The household appliance includes an atomizing device, a switching valve, and a care chamber for accommodating the object to be cared for. The water softening device is used to provide softened water to the atomizing device, and the atomizing device is used to provide an atomizing medium to the care chamber. The switching valve is located on the first water inlet line between the atomizing device and the water softening device. The control method further includes: if the hardness value of the produced water is higher than a preset threshold, closing the switching valve; If the hardness value of the produced water is not higher than the preset threshold, then the switch valve is opened.

25. The control method according to claim 19, characterized in that, The household appliance includes a second water inlet for connecting to a water source, and the second water inlet does not flow through the water softener. The control method further includes: Adjust the flow rate of the first water inlet path and / or the second water inlet path so that the hardness value of the mixed water after the product water from the first water inlet path is treated by the water softening device and the water from the second water inlet path is within a preset range.

26. The control method according to claim 25, characterized in that, The preset range is 50 mg / L to 120 mg / L.

27. The control method according to claim 25, characterized in that, The control method includes: Obtain water hardness information; The adjustment of the flow rate of the first water inlet path and / or the second water inlet path includes: obtaining the flow rate ratio of the first water inlet path and the second water inlet path based on the water hardness information, and adjusting the flow rate of the first water inlet path and / or the flow rate of the second water inlet path based on the flow rate ratio.

28. The control method according to claim 25, characterized in that, The adjustment of the flow rates of the first water inlet channel and the second water inlet channel includes: Adjust the valve core opening of the first valve on the first water inlet circuit and / or the valve core opening of the second valve on the second water inlet circuit.

29. The control method according to claim 25, characterized in that, The control method includes: The hardness of the mixed water obtained after mixing the first and second inlet water passages located downstream of the water softener is obtained; Based on the hardness of the mixed water, adjust the flow rate of the first inlet water path and / or the second inlet water path until the hardness of the mixed water after the product water from the first inlet water path has been treated by the water softening device and the water from the second inlet water path is within the preset range.

30. The control method according to claim 20 or 27, characterized in that, The acquisition of water hardness information includes: The system receives a detection signal from a water quality testing device to detect the hardness of a water source, and obtains the water source hardness information based on the detection signal; or, it obtains the water source hardness information corresponding to the current address of the household appliance from the network side.

31. The control method according to claim 19, characterized in that, The household appliance includes a second water inlet for connecting to a water source, and the second water inlet does not flow through the water softener. The control method further includes: Adjust the water inlet duration of the first water inlet path and / or the second water inlet path so that the hardness value of the mixed water after the product water from the first water inlet path is treated by the water softening device and the water from the second water inlet path is within a preset range.

32. The control method according to claim 19, characterized in that, The household appliance includes a clothing handling chamber, and the control method includes: Start the washing and rinsing program; Based on the soft water start command, the control power module applies voltage to the electrode assembly of the soft water device so that the soft water device performs softening treatment on the water flowing through the first inlet water path to produce softened water. During the washing stage, softened water is sent into the garment processing chamber to perform the washing.

33. The control method according to claim 32, characterized in that, The control method includes: Based on the regeneration command, the power module is controlled to apply a reverse voltage to the water softener, so that the electrode assembly of the water softener performs reverse regeneration to generate wastewater. In at least one of the washing and rinsing stages, wastewater is fed into and discharged from the garment processing chamber and / or discharged through the drainage channel of the garment processing equipment.

34. The control method according to claim 33, characterized in that, The rinsing stage includes rinsing and cleaning as well as rinsing and dehydration. During the rinsing and cleaning and / or rinsing and dehydration process, wastewater is sent into the garment processing chamber.

35. The control method according to claim 32, characterized in that, The household appliance includes a second water inlet for connecting to a water source, and the second water inlet does not flow through the softened water device; During the rinsing stage, one of the following is sent into the garment processing chamber: softened water, a mixture of softened water and water from the second water inlet, and water from the second water inlet.

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