Water purifying assembly of household appliance, control method thereof, and household appliance

Abstract

The application relates to the technical field of fluid purification, and provides a water purification assembly of a household appliance, a control method of the water purification assembly and the household appliance. The water purification assembly comprises an electrodialysis membrane stack arranged on a water channel of the water purification assembly; a first sterilization component arranged upstream of the electrodialysis membrane stack; and a second sterilization component arranged on a soft water channel downstream of the electrodialysis membrane stack. The water purification assembly provided in the application can improve the bacteriostatic effect.

Description

Technical Field

[0001] This application relates to the field of fluid purification technology, specifically to a water purification component and control method for a household appliance, and the household appliance itself. Background Technology

[0002] To improve water safety, related technologies employ electrodialysis for water purification. Specifically, this involves using an electrodialysis membrane stack to adsorb a large number of ions from the raw water, thereby purifying the water quality. Then, a sterilization component installed in the soft water circuit downstream of the electrodialysis membrane stack sterilizes the soft water, thus achieving water purification and improving water safety.

[0003] However, if the dialysis membrane stack produces water too quickly, the soft water may be taken out and used before it has been effectively sterilized, resulting in poor antibacterial effect and affecting water safety. Summary of the Invention

[0004] This application aims to address at least one of the technical problems existing in the related art. To this end, this application proposes a water purification component for a household appliance that can improve antibacterial effects.

[0005] This application also proposes a household appliance.

[0006] This application also proposes a method for controlling the water purification component of a household appliance.

[0007] This application also proposes an electronic device.

[0008] This application also proposes a computer-readable storage medium.

[0009] This application also proposes a computer program product.

[0010] A water purification component for a household appliance according to an embodiment of the first aspect of this application includes:

[0011] Electrodialysis membrane stacks installed in the water path of the water purification unit;

[0012] A first sterilization component is disposed upstream of the electrodialysis membrane stack;

[0013] The second sterilization component is located in the soft water path downstream of the electrodialysis membrane stack.

[0014] The water purification component of the household appliance provided in this application embodiment has sterilization components installed upstream and downstream of the electrodialysis membrane stack, so that the raw water can be sterilized once before the water is discharged from the electrodialysis membrane stack during the water purification process, and the soft water discharged from the electrodialysis membrane stack can be sterilized a second time, thereby improving the antibacterial effect.

[0015] According to one embodiment of this application, the first sterilization component includes a first electrolysis module;

[0016] The outlet of the first electrolysis module is connected to the inlet side of the electrodialysis membrane stack, and the outlet of the first electrolysis module is used to supply the electrodialysis membrane stack with raw water that has been sterilized by the first electrolysis module.

[0017] According to one embodiment of this application, it also includes:

[0018] A water path switching component is connected between the electrodialysis membrane stack and the second sterilization component, and is used to switch the water path between the electrodialysis membrane stack and the second sterilization component.

[0019] According to one embodiment of this application, the electrodialysis membrane stack includes a first water chamber and a second water chamber;

[0020] The water circuit switching component includes a first reversing valve and a second reversing valve. The first end of the first reversing valve is connected to the outlet of the first water chamber, the second end of the first reversing valve is connected to the second sterilization component, and the third end of the first reversing valve is connected to the wastewater outlet.

[0021] The first end of the second reversing valve is connected to the outlet of the second water chamber, the second end of the second reversing valve is connected to the second sterilization component, and the third end of the second reversing valve is connected to the wastewater outlet.

[0022] According to one embodiment of this application, the second sterilization component includes a second electrolysis module;

[0023] The second electrolysis module includes a first water inlet and a second water inlet, a second end of the first reversing valve and the second end of the second reversing valve connected to the first water inlet, and the second water inlet connected to the wastewater outlet.

[0024] According to one embodiment of this application, the second inlet is provided with a wastewater flow limiting valve.

[0025] According to one embodiment of this application, it also includes:

[0026] A cleaning component is located upstream of the electrodialysis membrane stack and connected to the water channel where the electrodialysis membrane stack is located;

[0027] The cleaning component is equipped with a media outlet, which is connected to the water channel where the electrodialysis membrane stack is located. The media outlet is used to supply the electrodialysis membrane stack with cleaning material to clean the electrodialysis membrane stack.

[0028] According to one embodiment of this application, it also includes:

[0029] The controller is configured to acquire the raw water flow rate through the first sterilization component and the soft water flow rate through the second sterilization component, and adjust the output power and operating time of the first sterilization component according to the raw water flow rate; and adjust the output power and operating time of the second sterilization component according to the soft water flow rate.

[0030] According to one embodiment of this application, the controller is further configured to: acquire a first current value of the first sterilization component under the current voltage, determine that the first current value is outside a preset range, and increase the output power and working time of the second sterilization component; or, acquire a second current value of the second sterilization component under the current voltage, determine that the second current value is outside a preset range, and increase the output power and working time of the first sterilization component.

[0031] The household appliance according to the second aspect of this application includes the water purification component of the household appliance in any of the above embodiments.

[0032] The control method for a water purification component according to a third aspect embodiment of this application, applied to a water purification component as described in the above embodiments, includes:

[0033] The flow rate of raw water flowing through the first sterilization component and the flow rate of soft water flowing through the second sterilization component are obtained.

[0034] Adjust the output power and operating time of the first sterilization component according to the raw water flow rate; and

[0035] Adjust the output power and operating time of the second sterilization component according to the soft water flow rate.

[0036] An electronic device according to a fourth aspect of this application includes a processor and a memory storing a computer program, wherein the processor executes the computer program to implement a control method for a water purification component of a household appliance as described in any of the above embodiments.

[0037] A computer-readable storage medium according to a fifth aspect of this application stores a computer program thereon, which, when executed by a processor, implements the control method for the water purification component of a household appliance as described in any of the above embodiments.

[0038] A computer program product according to a sixth aspect of this application includes a computer program that, when executed by a processor, implements the control method for the water purification component of a household appliance as described in any of the above embodiments.

[0039] The above-described one or more technical solutions in the embodiments of this application have at least one of the following technical effects:

[0040] By installing sterilization components upstream and downstream of the electrodialysis membrane stack, the raw water can be sterilized once before the water is discharged from the electrodialysis membrane stack during the water purification process, and the soft water discharged from the electrodialysis membrane stack can be sterilized a second time, thereby improving the antibacterial effect.

[0041] Furthermore, by connecting the wastewater to a second sterilization unit for electrolysis, bactericidal hypochlorous acid ions are generated to sterilize the soft water, thereby realizing the recycling of wastewater, making the water purification process more environmentally friendly, and reducing the user's water costs.

[0042] Furthermore, by installing a wastewater flow-limiting valve between the wastewater path and the second inlet of the second sterilization component, a large amount of wastewater is prevented from flowing into the second sterilization component, thereby ensuring the water purification effect while sterilizing the soft water.

[0043] Furthermore, by obtaining the raw water flow rate and the soft water flow rate, the output power and working time of the sterilization component can be adjusted accordingly, so that the output power and working time of the sterilization component can match the flow rate, thereby achieving flexible adjustment of output power and working time and improving sterilization efficiency. Attached Figure Description

[0044] To more clearly illustrate the technical solutions in this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0045] Figure 1 This is a schematic diagram of the structure of the water purification component provided in the embodiments of this application;

[0046] Figure 2 This is a schematic diagram of the structure of a water purification component provided in another embodiment of this application;

[0047] Figure 3 This is a schematic diagram of the structure of a water purification component provided in another embodiment of this application;

[0048] Figure 4 This is a schematic diagram of the structure of a water purification component provided in another embodiment of this application;

[0049] Figure 5 This is a schematic diagram of the structure of a water purification component provided in another embodiment of this application;

[0050] Figure 6 This is a schematic flowchart of the control method for the water purification component provided in the embodiments of this application;

[0051] Figure 7 This is a schematic diagram of the structure of the electronic device provided in the embodiments of this application.

[0052] Among them, 1. Electrodialysis membrane stack; 2. First sterilization component; 3. Second sterilization component; 4. Soft water circuit; 5. Wastewater circuit; 6. Water circuit switching component; 7. Cleaning component; 11. First water chamber; 12. Second water chamber; 13. First reversing valve; 14. Second reversing valve; 15. Storage container; 16. Inlet valve; 17. First flow limiting valve; 18. Second flow limiting valve; 100. Power supply; 200. Wastewater flow limiting valve. Detailed Implementation

[0053] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions of this application will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0054] The following will provide a detailed description and explanation of the water purification components and control methods of the household appliances provided in this application, as well as the household appliances themselves, through several specific embodiments.

[0055] like Figure 1 As shown, in one embodiment, a water purification component for a household appliance is provided, comprising:

[0056] Electrodialysis membrane stack 1 is installed in the water circuit of the water purification unit;

[0057] A first sterilization component 2 is installed upstream of the electrodialysis membrane stack 1;

[0058] The second sterilization component 3 is installed on the soft water path downstream of the electrodialysis membrane stack 1.

[0059] In one embodiment, during water production, raw water flows through the water path of the water purification component and passes through the first sterilization component 2, whereby the first sterilization component 2 sterilizes the raw water. After sterilization, the raw water flows through the water path of the water purification component and then through the electrodialysis membrane stack 1, to which a preset voltage is applied by the power supply 100. The electrodialysis membrane stack 1 purifies the raw water using electrodialysis technology. The electrodialysis membrane stack is an electrochemical water purification module composed of ion exchange membranes, flow channels, and electrodes. Ions are driven by an electric field to move directionally, and due to the selective permeation of the ion exchange membranes, concentrated and dilute water are separated, forming wastewater and soft water. Under the action of the electric field, the orderly arrangement of the anion and cation exchange membranes divides the electrodialysis membrane stack into an ordered purified water chamber and a concentrated water chamber. Soft water enters the purified water chamber, while wastewater enters the concentrated water chamber. In the water path of the water purification component, the soft water path 4 of the electrodialysis membrane stack connects to the purified water chamber, and the wastewater path 5 of the electrodialysis membrane stack connects to the concentrated water chamber. After the raw water that has undergone primary sterilization is purified by the electrodialysis membrane stack 1, the resulting soft water flows through the soft water channel 4 of the electrodialysis membrane stack and through the second sterilization component 3, so that the second sterilization component 3 performs secondary sterilization on the soft water. The soft water after secondary sterilization is then discharged along the soft water channel, and the wastewater from the concentration chamber is discharged through the wastewater channel 5.

[0060] By installing sterilization components upstream and downstream of the electrodialysis membrane stack, the raw water can be sterilized once before the water is discharged from the electrodialysis membrane stack during the water purification process, and the soft water discharged from the electrodialysis membrane stack can be sterilized a second time, thereby improving the antibacterial effect.

[0061] In one embodiment, the first sterilization component 2 includes a UV sterilization lamp. During water production, the UV sterilization lamp is turned on to sterilize the raw water flowing through it.

[0062] To improve the sterilization effect, in one embodiment, the first sterilization component 2 includes a first electrolysis module;

[0063] The outlet of the first electrolysis module is connected to the inlet side of the electrodialysis membrane stack 1. The outlet of the first electrolysis module is used to supply raw water that has been sterilized by the first electrolysis module to the electrodialysis membrane stack 1.

[0064] In one embodiment, the first electrolysis module is connected to a power supply 100 that can be switched on and off. During water production, the power supply 100 applies voltage to the first electrolysis module, causing the raw water entering the module through its inlet to be electrolyzed. Since the raw water typically contains chloride ions, the first electrolysis module will electrolyze the raw water to produce sterilizing water containing hypochlorous acid. Therefore, the raw water can be directly used for electrolysis and sterilization without adding high-chlorine water to the first electrolysis module, thus saving resources.

[0065] In one embodiment, when the first sterilization component includes a first electrolysis module, a reversal time can be preset to prevent scaling on the first electrolysis module. When the water production time reaches the reversal time, the electrodes of the first electrolysis module can be switched. One electrode switch refers to the reversal of the polarity of the positive and negative electrodes once, i.e., "reversal". For example, if the first electrolysis module has an upper electrode and a lower electrode, currently the upper electrode is positive and the lower electrode is negative; after reversal, the upper electrode becomes negative and the lower electrode becomes positive.

[0066] Considering that long-term water production can also lead to scaling of the electrodialysis membrane stack, the electrodialysis membrane stack 1 can also be synchronously reversed when the first electrolysis module reverses its polarity, that is, the voltage polarity of the power supply voltage applied to the first electrolysis module and the electrodialysis membrane stack can be adjusted.

[0067] To improve the service life of the electrodialysis membrane stack 1, the electrodialysis membrane stack 1 may undergo polarity reversal, in which the purified water chamber and concentrated water chamber before and after polarity reversal will be interchanged. This will cause the soft water circuit and wastewater circuit downstream of the electrodialysis membrane stack 1 to become disordered. To avoid the disorder of the soft water circuit and wastewater circuit, in one embodiment, such as Figure 2 As shown, the water purification component also includes:

[0068] The water path switching component 6 is connected between the electrodialysis membrane stack 1 and the second sterilization component 3, and is used to switch the water path between the electrodialysis membrane stack and the second sterilization component.

[0069] In one embodiment, the water path switching component 6 can switch the water path between the electrodialysis membrane stack 1 and the second sterilization component 3. For example, when the electrodialysis membrane stack switches electrodes, the state of all valves in the water path switching component 6 can be adjusted to switch the water path downstream of the electrodialysis membrane stack 1, so as to ensure that the soft water path and the wastewater path are not confused, and that the water purification effect of the water purification component is not affected by the switching of the electrodialysis membrane stack electrodes.

[0070] In one embodiment, such as Figure 2 As shown, the electrodialysis membrane stack 2 may include a first water chamber 11 and a second water chamber 12, each of which may have an inlet and an outlet.

[0071] In one embodiment, the first water chamber 11 and the second water chamber 12 are used to store soft water or wastewater. In some embodiments, if the power supply 100 applies voltage to the electrodialysis membrane stack 1, making the upper electrode of the electrodialysis membrane stack 1 a positive electrode and the lower electrode a negative electrode, i.e., the electrodialysis membrane stack 1 is in a positive electro-water production mode, then the first water chamber 11 is a purified water chamber used to store soft water, and the second water chamber 12 is a concentrated water chamber used to store wastewater. Correspondingly, the water path connecting the first water chamber 11 is a soft water path, and the water path connecting the second water chamber 12 is a wastewater path. It can be understood that if the power supply 100 applies voltage to the electrodialysis membrane stack 1, making the upper electrode of the electrodialysis membrane stack 1 a negative electrode and the lower electrode a positive electrode, i.e., the electrodialysis membrane stack 1 is in a reverse electro-water production mode, then the first water chamber 11 is a concentrated water chamber used to store wastewater, and the second water chamber 12 is a purified water chamber used to store soft water. Correspondingly, at this time, the water circuit connecting the first water chamber 11 is the wastewater circuit, and the water circuit connecting the second water chamber 12 is the soft water circuit.

[0072] In one embodiment, such as Figure 2 As shown, the water circuit switching component 7 includes a first reversing valve 13 and a second reversing valve 14. The first end of the first reversing valve 13 is connected to the outlet of the first water chamber 11. During the water production process, the first end of the first reversing valve 13 is in communication with the outlet of the first water chamber 11, receiving soft water or wastewater flowing out of the first water chamber 11. The second end of the first reversing valve 13 is connected to the second sterilization component 3, and the third end of the first reversing valve 13 is connected to the wastewater outlet. The first end of the second reversing valve 14 is connected to the outlet of the second water chamber 12. During the water production process, the first end of the second reversing valve 14 is in communication with the outlet of the second water chamber 12, receiving soft water or wastewater flowing out of the second water chamber 12. The second end of the second reversing valve 14 is connected to the second sterilization component 3, and the third end of the second reversing valve 14 is connected to the wastewater outlet. The first reversing valve 13 and the second reversing valve 14 can be three-way reversing valves.

[0073] When the water production mode is positive electrostatic water production, the first water chamber 11 is the purified water chamber. At this time, the second end of the first reversing valve 13 is opened, connecting the second end of the first reversing valve 13 to the second sterilization component 3, forming a soft water path. The third end of the first reversing valve 13 is closed, allowing the soft water obtained from the first water chamber 11 to flow through the second sterilization component 3. Simultaneously, when the water production mode is positive electrostatic water production, the second water chamber 12 is the concentrated water chamber. At this time, the second end of the second reversing valve 14 can be closed simultaneously, and the third end of the second reversing valve 14 can be opened, connecting to the wastewater outlet, forming a wastewater path, and discharging wastewater.

[0074] Similarly, when the water production mode is negative electrostatic water production, the first water chamber 11 is a concentrated water chamber. At this time, the second end of the first reversing valve 13 can be closed and the third end of the first reversing valve 13 can be opened, so that the third end of the first reversing valve 13 is connected to the wastewater outlet to form a wastewater path and discharge wastewater. At the same time, when the water production mode is negative electrostatic water production, the second water chamber 12 is a purified water chamber. At this time, the second end of the second reversing valve 14 can be opened to connect it to the second sterilization component 3, and the third end of the second reversing valve 14 can be closed, so that the soft water obtained from the second water chamber 12 by the second reversing valve 14 flows into the second sterilization component 3.

[0075] By using the above method, it is ensured that only three soft water flows into the second sterilization component and only wastewater flows out of the wastewater outlet, thereby avoiding confusion between the soft water path and the wastewater path.

[0076] In one embodiment, the second sterilization component 3 includes a UV sterilization lamp. During water production, the UV sterilization lamp is turned on to sterilize the soft water flowing through it.

[0077] To improve the sterilization effect, in one embodiment, the second sterilization component 3 includes a second electrolysis module.

[0078] like Figure 3 As shown, the second electrolysis module is connected to the power supply 100 for on / off switching. During water production, the second electrolysis module receives soft water discharged from the electrodialysis membrane stack 1 and electrolyzes and sterilizes the soft water. In some embodiments, the inlet of the second electrolysis module is connected to the second end of the first reversing valve 13 and the second end of the second reversing valve 14. During water production, high-chlorine water is added to the second electrolysis module. At this time, the power supply 100 applies voltage to the second electrolysis module, causing it to electrolyze hypochlorite ions to sterilize the soft water flowing into the second electrolysis module.

[0079] In one embodiment, since raw water, after being filtered through an electrodialysis membrane stack, forms both soft water and wastewater, and the wastewater from electrodialysis membrane stack filtration typically contains a high concentration of chloride ions, in order to enable resource reuse, in one embodiment, such as... Figure 3 As shown, the second electrolysis module includes a first water inlet and a second water inlet, a second end of a first reversing valve 13, and a second end of a second reversing valve 14 connected to the first water inlet, and the second water inlet connected to a wastewater outlet.

[0080] Since the wastewater filtered by the electrodialysis membrane stack usually contains a high concentration of chloride ions, the wastewater outlet is connected to the second inlet of the second electrolysis module. This allows the wastewater generated after electrodialysis to flow into the second electrolysis module through the wastewater path. The second electrolysis module then electrolyzes the wastewater filtered by the electrodialysis membrane stack to generate bactericidal hypochlorite ions, which then sterilize the soft water entering the second electrolysis module from the first inlet.

[0081] By connecting wastewater to the second electrolysis module for electrolysis, hypochlorite ions are generated to sterilize the soft water, thereby realizing the recycling of wastewater, making the water purification process more environmentally friendly, and reducing the water cost for users.

[0082] Considering that excessive wastewater inflow may affect the quality of the soft water, in one embodiment, a wastewater flow-limiting valve 200 is provided between the wastewater path and the second inlet. The wastewater flow-limiting valve 200 is used to limit the flow of wastewater into the second electrolysis module, preventing large amounts of wastewater from entering the module. The flow-limiting ratio of the wastewater flow-limiting valve 200 can be set according to actual conditions. For example, in some embodiments, the flow-limiting ratio can be set to a ratio of wastewater discharged from the electrodialysis membrane stack to wastewater flowing into the second electrolysis module of 10:1, meaning the wastewater flowing into the second electrolysis module is 1 / 10 of the wastewater discharged from the electrodialysis membrane stack.

[0083] By installing a wastewater flow restriction valve at the second inlet of the second electrolysis module, a large amount of wastewater is prevented from flowing into the second electrolysis module, thus ensuring the water purification effect while sterilizing the soft water.

[0084] Considering that during frequent water purification processes, one end of the electrodialysis membrane stack will adsorb a large number of ions, such as calcium and magnesium ions. Therefore, long-term water purification can lead to the formation of scale such as calcium carbonate and magnesium carbonate, causing membrane stack blockage and pressure buildup, resulting in a decrease in water purification capacity, or even loss of water purification capacity. Therefore, in one embodiment, such as... Figure 4 As shown, the water purification component also includes:

[0085] Cleaning component 7 is located upstream of electrodialysis membrane stack 1 and connected to the water channel where electrodialysis membrane stack 1 is located;

[0086] The cleaning component 7 is equipped with a media outlet, which is connected to the water channel where the electrodialysis membrane stack is located. The media outlet is used to supply the washing material for cleaning the electrodialysis membrane stack.

[0087] In one embodiment, such as Figure 4 As shown, the cleaning component 7 can be disposed upstream of the first sterilization component 2. In another embodiment, the cleaning component 7 can also be disposed between the first sterilization component 2 and the electrodialysis membrane stack 1.

[0088] The cleaning unit 7 can be pre-filled with detergent. When cleaning the electrodialysis membrane stack 1, the cleaning unit 7 is turned on, allowing the detergent in the cleaning unit to pass through the media outlet and impact the electrodialysis membrane stack 1 with the water flow in the water path where the electrodialysis membrane stack 1 is located, thereby rinsing the electrodialysis membrane stack 1. The detergent can be citric acid powder. During cleaning, the citric acid powder dissolves under the impact of the water flow, producing acidic water, which flows along the water path to the electrodialysis membrane stack 1, rinsing the electrodialysis membrane stack 1 and removing scale from it.

[0089] By installing a cleaning component upstream of the electrodialysis membrane stack, the electrodialysis membrane stack can be cleaned when scale appears, thereby reducing scale on the electrodialysis membrane stack and improving water purification efficiency.

[0090] In one embodiment, such as Figure 5 As shown, the washing component 2 includes a storage container 15 for storing laundry and a water inlet valve 16;

[0091] The storage container 15 is located on a branch upstream of the electrodialysis membrane stack 1 and is connected to the main water channel where the electrodialysis membrane stack 1 is located through the medium outlet;

[0092] The water inlet valve 16 is installed on the water inlet of the storage container 15.

[0093] In one embodiment, since the main water path is used to transport raw water to the electrodialysis membrane stack for purification during daily water purification, to prevent detergents in the storage container 15 from entering the electrodialysis membrane stack with the raw water during purification and affecting water safety, the storage container 15 can be placed on a branch of the main water path. When the water purification unit is purifying water, the inlet valve 16 is closed. At this time, the raw water directly enters the electrodialysis membrane stack for filtration through the main water path and does not enter the storage container 15. This ensures that detergents do not enter the electrodialysis membrane stack during the water purification process, thereby improving water safety. When it is necessary to clean the electrodialysis membrane stack 1, the inlet valve 16 is opened. At this time, the raw water enters the storage container 15 through the inlet valve 16, carrying away detergents such as citric acid powder in the storage container 15. Under the impact of the water flow, the detergents dissolve, producing acidic water. Then, the acidic water flows from the medium outlet of the storage container 15 into the main water path and enters the electrodialysis membrane stack 1 along the main water path to clean the scale on the electrodialysis membrane stack 1.

[0094] In one embodiment, such as Figure 5As shown, the water purification assembly may further include a first flow limiting valve 17 and a second flow limiting valve 18. The first flow limiting valve 17 is connected to the inlet of the first water chamber 11, and the second flow limiting valve 18 in the flow limiting assembly is connected to the inlet of the second water chamber 12. Both the first flow limiting valve 17 and the second flow limiting valve 18 can be solenoid valves, allowing for controllable flow and easy operation. The solenoid valve is an electromagnetically controlled valve body. Its working principle is as follows: the solenoid valve has a sealed cavity with through holes at different positions, each hole connected to a different oil pipe. A piston is located in the center of the cavity, and two electromagnets are on either side. When the coil of one electromagnet is energized, the valve body is attracted to that side. By controlling the movement of the valve body, different drain holes are opened or closed. The oil inlet is always open, allowing hydraulic oil to enter different drain pipes. The oil pressure then pushes the piston in the cylinder, which in turn drives the piston rod, which in turn drives the mechanical device. Therefore, controlling the current to the electromagnets controls the mechanical movement. The first flow limiting valve 17 and the second flow limiting valve 18 are solenoid valves with the same flow rate, such as both having a flow rate of 2000 ml / min.

[0095] When flushing the electrodialysis membrane stack 1 is required, the first flow limiting valve 17 and the second flow limiting valve 18 can be opened simultaneously to achieve a complete flush of the electrodialysis membrane stack 1. When purifying water, the flow direction of the raw water can be restricted by controlling the opening and closing of the first flow limiting valve 17 and the second flow limiting valve 18. For example, controlling the first flow limiting valve 17 to open and the second flow limiting valve 18 to close can control the raw water to enter the first water chamber 11 of the electrodialysis membrane stack 1; controlling the first flow limiting valve 17 to close and the second flow limiting valve 18 to open can control the raw water to enter the second water chamber 12 of the electrodialysis membrane stack 1.

[0096] To further improve sterilization efficiency, in one embodiment, it further includes:

[0097] A controller (not shown) is used to acquire the raw water flow rate through the first sterilization component 2 and the soft water flow rate through the second sterilization component 3, and to adjust the output power and working time of the first sterilization component 2 according to the raw water flow rate; and to adjust the output power and working time of the second sterilization component 3 according to the soft water flow rate.

[0098] In one embodiment, the controller includes a first flow rate detection unit for detecting the raw water flow rate, which can be located upstream of the first sterilization component 2. The controller may also include a second flow rate detection unit for detecting the soft water flow rate, which can be located on the soft water path between the second sterilization component 3 and the electrodialysis membrane stack 1. Both the first and second flow rate detection units can be flow rate measurement sensors. After detecting the raw water flow rate through the first detection unit, the raw water flow rate is matched with a pre-stored mapping table containing the correspondence between raw water flow rate and output power and operating time. The output power and operating time corresponding to the raw water flow rate are then obtained to determine the required output power and operating time for the first sterilization component, and the first sterilization component is adjusted according to these output power and operating time. Both the output power and operating time are directly proportional to the raw water flow rate; that is, the faster the raw water flow rate, the greater the output power and the longer the operating time.

[0099] In some embodiments, the first sterilization component consists of multiple UV sterilization lamps. Adjusting the output power of the first sterilization component can adjust the number of UV sterilization lamps that are turned on. For example, if the raw water flow rate is greater than a first threshold but less than or equal to a second threshold, one UV sterilization lamp is turned on; if the raw water flow rate is greater than the second threshold but less than or equal to a third threshold, two UV sterilization lamps are turned on.

[0100] In some embodiments, the first sterilization component is a first electrolysis module. In this case, adjusting the output power of the first sterilization component can be equivalent to adjusting the preset voltage applied to the first electrolysis module. For example, if the raw water flow rate is greater than a first threshold and less than or equal to a second threshold, the preset voltage applied to the first electrolysis module is the first preset voltage; if the raw water flow rate is greater than the second threshold and less than or equal to a third threshold, the preset voltage applied to the first electrolysis module is the second preset voltage, and the second preset voltage is greater than the first preset voltage.

[0101] By obtaining the raw water flow rate, the output power and working time of the first sterilization component are adjusted so that the output power and working time of the first sterilization component can match the raw water flow rate, thereby achieving flexible adjustment of output power and working time. In this way, when the raw water flow rate is too fast, the sterilization effect can be avoided, while when the raw water flow rate is slow, power resources can be saved.

[0102] Similarly, in some embodiments, the second sterilization component consists of multiple UV sterilization lamps. Adjusting the output power of the second sterilization component can adjust the number of UV sterilization lamps that are turned on. For example, if the soft water flow rate is greater than a first threshold but less than or equal to a second threshold, one UV sterilization lamp is turned on; if the soft water flow rate is greater than the second threshold but less than or equal to a third threshold, two UV sterilization lamps are turned on.

[0103] In some embodiments, the second sterilization component is a second electrolysis module. In this case, adjusting the output power of the second sterilization component can be equivalent to adjusting the preset voltage applied to the second electrolysis module. For example, if the soft water flow rate is greater than a first threshold and less than or equal to a second threshold, the preset voltage applied to the second electrolysis module is the first preset voltage; if the soft water flow rate is greater than the second threshold and less than or equal to a third threshold, the preset voltage applied to the second electrolysis module is the second preset voltage, and the second preset voltage is greater than the first preset voltage.

[0104] By obtaining the soft water flow rate, the output power and working time of the second sterilization component are adjusted so that the output power and working time of the second sterilization component can match the soft water flow rate, thereby achieving flexible adjustment of output power and working time. In this way, when the soft water flow rate is too fast, the sterilization effect can be avoided, while when the soft water flow rate is slow, power resources can be saved.

[0105] During frequent water purification processes, sterilization components inevitably suffer damage. For example, when the sterilization component is a UV sterilizer, it may experience short circuits or open circuits. When the sterilization component is an electrolysis module, its electrodes may develop scale or detach. This can cause the sterilization component to malfunction, reducing sterilization efficiency and affecting water safety. When a sterilization component malfunctions, its current will also be abnormal. For instance, a short circuit in a UV sterilizer will result in an increased current when the same preset voltage is applied. Conversely, an open circuit will result in zero detected current, indicating a significant decrease in the detected current. Similarly, in an electrolysis module, the current may increase or decrease when the same preset voltage is applied due to graphite layer detachment or electrode scaling. Therefore, obtaining the current value of the sterilization component can help determine if it is malfunctioning.

[0106] Specifically, the first current value is obtained through a first current detection unit in the controller. This first current detection unit can be a current sensor, electrically connected to the electrodialysis membrane stack 1. When the power supply 100 applies voltage to the electrodialysis membrane stack 1, the first current detection unit can directly obtain the first current value of the electrodialysis membrane stack. Alternatively, the first current detection unit can also be an electric field strength sensor, which can be used to sense the intensity of the electric field formed by the power supply through the electrodes in the electrodialysis membrane stack 1, thereby obtaining the first current value of the electrodialysis membrane stack 1 through the intensity of the electric field.

[0107] In one embodiment, after obtaining the first current value of the first sterilization component, the first current value can be compared with a preset range to determine whether the first current value of the first sterilization component is too large; if it is not within the preset range, the first current value is considered to be too large or too small, and the first sterilization component can be determined to be abnormal. If it is within the preset range, the electrode detection result of the first sterilization component is determined to be normal, and the sterilization ability of the first sterilization component can meet the requirements.

[0108] The preset range can be determined based on the current voltage applied to the first sterilization component. For example, a correspondence table can be pre-stored between multiple voltages and multiple preset ranges, such as the preset range corresponding to 5V voltage being [1.45A, 1.5A]. Based on the current voltage applied to the first sterilization component, the preset range corresponding to the current voltage can be determined from this correspondence table.

[0109] Considering that when the first sterilization component is the first electrolysis module, abnormal current values ​​may be caused by scale buildup on the electrodes of the first electrolysis module, if the first current value is outside the preset range, the electrodes of the first sterilization component can be switched first. If the electrode abnormality is due to scale buildup, the scale formed on the electrode surface can be automatically cleaned after a period of switching, causing the first current value of the first sterilization component to return to normal, i.e., adjusted to the preset range. Therefore, the electrodes of the first sterilization component can be switched first, and after a preset time, the current value of the first sterilization component can be obtained again. If the third current value obtained at this time is within the preset range, it can be determined that the electrode abnormality is caused by scale buildup, the graphite layer on the electrode has not fallen off, and the first sterilization component can still be used normally. If the third current value is outside the preset range, it can be determined that the electrode abnormality is caused by electrode damage due to the falling off of the graphite layer on the electrode, and the first sterilization component is unusable.

[0110] In one embodiment, when the first current value of the first sterilization component is outside the preset range, the output power and working time of the second sterilization component can be directly increased; or, if the first sterilization component is a first electrolysis module, when the first current value of the first sterilization component is outside the preset range, after reversing the polarity of the first sterilization component, if the obtained current value is still outside the preset range, the output power and working time of the second sterilization component are increased, thereby avoiding a decrease in sterilization efficiency due to the unavailability of the first sterilization component.

[0111] Similarly, when the second current value of the second sterilization component is outside the preset range, the output power and working time of the first sterilization component can be directly increased; or, if the second sterilization component is the second electrolysis module, when the second current value of the second sterilization component is outside the preset range, after reversing the polarity of the second sterilization component, if the obtained current value is still outside the preset range, the output power and working time of the first sterilization component can be increased.

[0112] In one embodiment, the controller includes a communication module. When the current value of the second sterilization component is outside a preset range, to ensure timely detection of any abnormalities in the first sterilization component, the controller can communicate with an external terminal via the communication module, such as through Wi-Fi or ZigBee. When an abnormal current value of the first sterilization component is detected, a notification message is generated to indicate this abnormality and sent to the external terminal via the communication module. This allows the user of the external terminal to be promptly notified of the abnormality and to repair the first sterilization component upon receiving the notification. The external terminal can be a terminal with a user application installed corresponding to the water purification component to which the first sterilization component belongs. Similarly, when the current value of the second sterilization component is outside the preset range, a notification message indicating an abnormality in the second sterilization component can also be sent to the terminal via the communication module.

[0113] The control method of the water purification component provided in this application is described below. The control method of the water purification component described below can be referred to in correspondence with the water purification component described above.

[0114] In one embodiment, such as Figure 6 As shown, a control method for a water purification component is provided, wherein the water purification component is any of the water purification components described above, and a controller applied in the water purification component includes:

[0115] Step 101: Obtain the raw water flow rate through the first sterilization component and the soft water flow rate through the second sterilization component;

[0116] Step 102: Adjust the output power and working time of the first sterilization component according to the raw water flow rate; and adjust the output power and working time of the second sterilization component according to the soft water flow rate.

[0117] In one embodiment, the water purification control method further includes:

[0118] Obtain the first current value of the first sterilization component under the current voltage, determine that the first current value is outside the preset range, and increase the output power and working time of the second sterilization component; or, obtain the second current value of the second sterilization component under the current voltage, determine that the second current value is outside the preset range, and increase the output power and working time of the first sterilization component.

[0119] Figure 7 An example is a schematic diagram of the physical structure of an electronic device, such as... Figure 7As shown, the electronic device may include: a processor 810, a communication interface 820, a memory 830, and a communication bus 840, wherein the processor 810, the communication interface 820, and the memory 830 communicate with each other via the communication bus 840. The processor 810 can call a computer program in the memory 830 to execute control methods for the water purification component, such as including:

[0120] The flow rate of raw water flowing through the first sterilization component and the flow rate of soft water flowing through the second sterilization component are obtained.

[0121] Adjust the output power and operating time of the first sterilization component according to the raw water flow rate; and...

[0122] Adjust the output power and operating time of the second sterilization component according to the soft water flow rate.

[0123] Furthermore, the logical instructions in the aforementioned memory 830 can be implemented as software functional units and, when sold or used as independent products, can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, or a part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods of the various embodiments of this application. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0124] On the other hand, this application also provides a storage medium, which includes a computer program. The computer program can be stored on a non-transitory computer-readable storage medium. When the computer program is executed by a processor, the computer can execute the control method of the water purification component provided in the above embodiments, such as including:

[0125] The flow rate of raw water flowing through the first sterilization component and the flow rate of soft water flowing through the second sterilization component are obtained.

[0126] Adjust the output power and operating time of the first sterilization component according to the raw water flow rate; and...

[0127] Adjust the output power and operating time of the second sterilization component according to the soft water flow rate.

[0128] On the other hand, embodiments of this application also provide a processor-readable storage medium storing a computer program for causing a processor to execute the methods provided in the above embodiments, such as including:

[0129] The flow rate of raw water flowing through the first sterilization component and the flow rate of soft water flowing through the second sterilization component are obtained.

[0130] Adjust the output power and operating time of the first sterilization component according to the raw water flow rate; and

[0131] Adjust the output power and operating time of the second sterilization component according to the soft water flow rate.

[0132] Processor-readable storage media can be any available medium or data storage device that the processor can access, including but not limited to magnetic storage (e.g., floppy disks, hard disks, magnetic tapes, magneto-optical disks (MOs), etc.), optical storage (e.g., CDs, DVDs, BDs, HVDs, etc.), and semiconductor storage (e.g., ROMs, EPROMs, EEPROMs, non-volatile memory (NAND flash), solid-state drives (SSDs)).

[0133] In one embodiment, a household appliance is also provided, including: a water purification component of the household appliance of any of the above embodiments.

[0134] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs. Those skilled in the art can understand and implement this without any creative effort.

[0135] Through the above description of the embodiments, those skilled in the art can clearly understand that each embodiment can be implemented by means of software plus necessary general-purpose hardware platforms, and of course, it can also be implemented by hardware. Based on this understanding, the above technical solutions, in essence or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product can be stored in a computer-readable storage medium, such as ROM / RAM, magnetic disk, optical disk, etc., including several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute the methods of various embodiments or some parts of embodiments.

[0136] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.

Claims

1. A water purification component for a household appliance, characterized in that, include: Electrodialysis membrane stacks installed in the water path of the water purification unit; A first sterilization component is disposed upstream of the electrodialysis membrane stack; The second sterilization component is located in the soft water path downstream of the electrodialysis membrane stack; The second sterilization component includes a second electrolysis module; The second electrolysis module includes a first water inlet and a second water inlet. The first water inlet is connected to the soft water circuit, and the second water inlet is connected to the wastewater outlet. The second electrolysis module is used to electrolyze the wastewater to sterilize the soft water. The controller is used to acquire the first current value of the first sterilization component under the current voltage, determine that the first current value is outside the preset range, and increase the output power and working time of the second sterilization component. Alternatively, obtain the second current value of the second sterilization component under the current voltage, determine that the second current value is outside the preset range, and increase the output power and working time of the first sterilization component; In the water purification process, the raw water is sterilized once before the water is discharged from the electrodialysis membrane, and then the soft water discharged from the electrodialysis membrane is sterilized a second time.

2. The water purification component of a household appliance according to claim 1, characterized in that, The first sterilization component includes a first electrolysis module; The outlet of the first electrolysis module is connected to the inlet side of the electrodialysis membrane stack, and the outlet of the first electrolysis module is used to supply the electrodialysis membrane stack with raw water that has been sterilized by the first electrolysis module.

3. The water purification component of a household appliance according to claim 1, characterized in that, Also includes: A water path switching component is connected between the electrodialysis membrane stack and the second sterilization component, and is used to switch the water path between the electrodialysis membrane stack and the second sterilization component.

4. The water purification component of a household appliance according to claim 3, characterized in that, The electrodialysis membrane stack includes a first water chamber and a second water chamber; The water circuit switching component includes a first reversing valve and a second reversing valve. The first end of the first reversing valve is connected to the outlet of the first water chamber, the second end of the first reversing valve is connected to the second sterilization component, and the third end of the first reversing valve is connected to the wastewater outlet. The first end of the second reversing valve is connected to the outlet of the second water chamber, the second end of the second reversing valve is connected to the second sterilization component, and the third end of the second reversing valve is connected to the wastewater outlet.

5. The water purification component of a household appliance according to claim 4, characterized in that, The second end of the first reversing valve and the second end of the second reversing valve are connected to the first water inlet, and the second water inlet is connected to the wastewater outlet.

6. The water purification component of a household appliance according to claim 5, characterized in that, The second inlet is equipped with a wastewater flow limiting valve.

7. The water purification component of a household appliance according to claim 1, characterized in that, Also includes: A cleaning component is located upstream of the electrodialysis membrane stack and connected to the water channel where the electrodialysis membrane stack is located; The cleaning component is equipped with a media outlet, which is connected to the water channel where the electrodialysis membrane stack is located. The media outlet is used to supply the electrodialysis membrane stack with cleaning material to clean the electrodialysis membrane stack.

8. The water purification component of a household appliance according to any one of claims 1-7, characterized in that, Also includes: The controller is configured to acquire the raw water flow rate through the first sterilization component and the soft water flow rate through the second sterilization component, and adjust the output power and operating time of the first sterilization component according to the raw water flow rate; and adjust the output power and operating time of the second sterilization component according to the soft water flow rate.

9. A household appliance, characterized in that, Includes the water purification component of a household appliance according to any one of claims 1-8.

10. A control method for a water purification component of a household appliance, characterized in that, A water purification component for use in any one of claims 1-8 of a household appliance, comprising: The flow rate of raw water flowing through the first sterilization component and the flow rate of soft water flowing through the second sterilization component are obtained. Adjust the output power and operating time of the first sterilization component according to the raw water flow rate; and Adjust the output power and operating time of the second sterilization component according to the soft water flow rate.

11. The control method for the water purification component of a household appliance according to claim 10, characterized in that, Also includes: Obtain the first current value of the first sterilization component under the current voltage, determine that the first current value is outside the preset range, and increase the output power and working time of the second sterilization component; or, obtain the second current value of the second sterilization component under the current voltage, determine that the second current value is outside the preset range, and increase the output power and working time of the first sterilization component.

12. An electronic device comprising a processor and a memory storing a computer program, characterized in that, When the processor executes the computer program, it implements the control method for the water purification component of the household appliance according to any one of claims 10 to 11.

13. A computer-readable storage medium having a computer program stored thereon, characterized in that, When the computer program is executed by the processor, it implements the control method for the water purification component of the household appliance according to any one of claims 10 to 11.

14. A computer program product, comprising a computer program, characterized in that, When the computer program is executed by the processor, it implements the control method for the water purification component of the household appliance according to any one of claims 10 to 11.

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