A dishwasher, a control method and apparatus for preparing sterilizing water

Abstract

The application discloses a kind of dish washer, disinfectant water preparation control method and device, wherein the disinfectant water preparation control method includes: after the discharge electrode is started, the actual change rate of PH in the water storage structure in current time is obtained;Obtain the preset PH standard change rate;According to the actual change rate of PH and the PH standard change rate, the power of the discharge electrode is adjusted.Disinfectant water preparation control method detects the PH of disinfectant produced after air containing plasma is dissolved in water to determine whether preparation efficiency and preparation effect meet the standard, and the power of discharge electrode is controlled in closed loop according to the detection result.This way can solve the problem of large energy consumption and unstable disinfectant preparation effect in real-time preparation method, which saves energy and ensures disinfectant effect.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of electric appliances, in particular to a dish washing machine, a control method and device for preparing disinfectant water. BACKGROUND

[0002] With the development of the times and the progress of science and technology, people's life rhythm is accelerating, and more and more people will choose to buy various new types of household appliances for cleaning in the home environment. The dish washing machine as a practical household appliance is favored by many families.

[0003] The dish washing machine on the market generally generates disinfectant water through a disinfectant water generating device. The disinfectant water generating device includes a water storage container, a discharge electrode and a ground electrode arranged in the water storage container. The discharge electrode can electrolyze air and generate ozone when discharging. The ozone dissolved in water can generate ozone water with disinfection effect. However, the ozone concentration of the ozone water generated by the disinfectant water generating device in the prior art is low, and the disinfection and sterilization effect is not good. SUMMARY

[0004] Therefore, the embodiments of the present application provide a dish washing machine, a control method and device for preparing disinfectant water to solve the defects that the ozone concentration of the ozone water generated by the disinfectant water generating device in the prior art is low and the disinfection and sterilization effect is not good.

[0005] According to a first aspect, the embodiments of the present application provide a control method for preparing disinfectant water, applied to a disinfectant water generating device. The disinfectant water generating device includes a water storage structure, a discharge electrode, a ground electrode, an air inlet channel and a bubble stone. The discharge electrode is arranged in the water storage structure and is adapted to be connected with a live wire of a power supply device. The ground electrode is arranged in the water storage structure and is adapted to be connected with a zero line of the power supply device. The bubble stone is arranged in the water storage structure and is connected with an air outlet end of the air inlet channel. The control method for preparing disinfectant water includes: after starting the discharge electrode, acquiring a PH value actual change rate in the water storage structure at the current time; acquiring a preset PH value standard change rate; and adjusting the power of the discharge electrode according to the PH value actual change rate and the PH value standard change rate.

[0006] The water storage structure of the disinfectant water generating device is provided with an air inlet channel, and a bubble stone connected with the air outlet end of the air inlet channel is arranged in the water storage structure. When disinfectant water is needed, the power supply device provides a high-frequency alternating voltage of about 10-12kv to the disinfectant water generating device, air enters the water storage structure through the air inlet channel, and the discharge electrode of the disinfectant water generating device generates a discharge arc phenomenon, so that ozone and nitrogen oxides are generated by electrolysis of the air in the air inlet channel. The ozone generated by electrolysis can be discharged into the bubble stone through the air outlet end of the air inlet channel. Since the bubble stone has a porous structure, it can disperse the ozone from the air inlet channel into uniform and fine bubbles and release them into the water, thereby effectively increasing the contact area between ozone and water, increasing the solubility of ozone, making the ozone concentration in the prepared disinfectant water higher, having better disinfection and sterilization effect, and reducing the risk of ozone not being dissolved in water, ozone being discharged to pollute the air or produce odor. In addition, the nitrogen oxides generated by electrolysis of air can generate nitric acid and nitrous acid with strong oxidizing property after being dissolved in water, and the water vapor carried by air can generate hydroxyl radicals after being electrolyzed, which can generate hydrogen peroxide with strong oxidizing property after being dissolved in water, thereby further improving the disinfection and sterilization effect of the disinfectant water. Therefore, the control method for preparing disinfectant water detects the PH value of the disinfectant liquid generated after the plasma-containing air is dissolved in water to determine whether the preparation efficiency and preparation effect meet the standards, and forms a closed-loop control on the power of the discharge electrode based on the detection result. This method can solve the problems of large energy consumption and unstable disinfectant liquid preparation effect in real-time preparation methods, and can save energy and ensure the effect of disinfectant liquid.

[0007] Specifically, the power of the discharge electrode is adjusted according to the actual PH value change rate and the standard PH value change rate, including: when the actual PH value change rate is greater than the standard PH value change rate interval, the power of the discharge electrode is reduced; when the actual PH value change rate is less than the standard PH value change rate interval, the power of the discharge electrode is increased.

[0008] Specifically, the power of the discharge electrode is reduced, including: calculating the difference between the actual PH value change rate and the standard PH value change rate, determining the first adjustment amount of the power of the discharge electrode according to the difference; obtaining the current power of the discharge electrode; and reducing the first adjustment amount on the basis of the current power; and / or, the power of the discharge electrode is increased, including: calculating the difference between the actual PH value change rate and the standard PH value change rate, determining the second adjustment amount of the power of the discharge electrode according to the difference; obtaining the current power of the discharge electrode; and increasing the second adjustment amount on the basis of the current power.

[0009] Specifically, before adjusting the power of the discharge electrode according to the actual PH value change rate and the standard PH value change rate, the method further comprises: determining whether the actual PH value change rate is in a preset change rate interval; when the actual PH value change rate is not in the change rate interval, adjusting the power of the discharge electrode according to the actual PH value change rate and the standard PH value change rate; when the actual PH value change rate is in the change rate interval, determining that the power adjustment of the discharge electrode is completed, and controlling the discharge electrode to work according to the current power.

[0010] Specifically, the adjusting the power of the discharge electrode according to the actual PH value change rate and the standard PH value change rate comprises: using a preset PID control algorithm to control according to the actual PH value change rate and the standard PH value change rate, so that the actual PH value change rate reaches the change rate interval.

[0011] Specifically, the obtaining the actual PH value change rate in the water storage structure at the current time comprises: obtaining a current PH value in the water storage structure at the current time; obtaining an original PH value in the water storage structure in a preset time period before the current time; and obtaining the actual PH value change rate in the water storage structure according to the current PH value, the original PH value and the preset time period.

[0012] Specifically, the control method of the disinfectant water preparation further comprises: obtaining a current PH value in the water storage structure at the current time; obtaining an initial PH value in the water storage structure before the discharge electrode is started; and when the current PH value reaches a preset target value or a difference between the current PH value and the initial PH value is greater than or equal to a preset change threshold, the discharge electrode is turned off.

[0013] According to a second aspect, an embodiment of the present application further provides a control device of disinfectant water preparation, which is applied to a disinfectant water generating device, the disinfectant water generating device comprising a water storage structure, a discharge electrode, a ground electrode, an air inlet channel and a bubble stone, the discharge electrode being arranged in the water storage structure and being adapted to be connected with a live wire of a power supply device, the ground electrode being arranged in the water storage structure and being adapted to be connected with a zero line of the power supply device, the bubble stone being arranged in the water storage structure and being connected with an air outlet end of the air inlet channel, the control device of the disinfectant water preparation comprising an obtaining module and an adjusting module: after the discharge electrode is started, the obtaining module is used to obtain an actual PH value change rate in the water storage structure at a current time; the obtaining module is further used to obtain a preset standard PH value change rate; and the adjusting module is used to adjust the power of the discharge electrode according to the actual PH value change rate and the standard PH value change rate.

[0014] According to a third aspect, embodiments of the present invention also provide a disinfectant water generating device, the disinfectant water generating device comprising a water storage structure, a discharge electrode, a ground electrode, an air inlet channel, and an air bubble stone, wherein a pH sensor is provided in the water storage structure, the discharge electrode is disposed within the water storage structure and is adapted to be connected to the live wire of a power supply device; the ground electrode is disposed within the water storage structure and is adapted to be connected to the neutral wire of the power supply device; the air bubble stone is disposed within the water storage structure and is connected to the air outlet end of the air inlet channel, the pH sensor, the discharge electrode, the memory, and the processor are communicatively connected to each other, the memory stores computer instructions, and the processor executes the computer instructions to perform the control method for disinfectant water preparation described in the first aspect or any embodiment of the first aspect.

[0015] According to a fourth aspect, embodiments of the present invention also provide a dishwasher, the dishwasher including the disinfectant water generating device described in the third aspect.

[0016] According to a fifth aspect, embodiments of the present invention provide a computer-readable storage medium storing computer instructions for causing the computer to perform the control method for preparing disinfectant water as described in the first aspect or any embodiment of the first aspect. Attached Figure Description

[0017] The features and advantages of the invention will be more clearly understood by referring to the accompanying drawings, which are schematic and should not be construed as limiting the invention in any way. In the drawings:

[0018] Figure 1 A perspective view of the disinfectant water generator is shown;

[0019] Figure 2 A top view of the disinfectant water generator is shown;

[0020] Figure 3 for Figure 2 A sectional view along line AA in the middle;

[0021] Figure 4 This is a cross-sectional view of a disinfectant water generating device;

[0022] Figure 5 This is a schematic flowchart of the disinfectant preparation and control method in Embodiment 1 of the present invention;

[0023] Figure 6 This is a schematic flowchart illustrating an example of the disinfectant preparation and control method in Embodiment 1 of the present invention.

[0024] Figure 7 This is a schematic diagram of the disinfectant preparation control device in Embodiment 2 of the present invention;

[0025] Figure 8 This is a schematic diagram of the dishwasher in Embodiment 3 of the present invention;

[0026] Among them, a1 is the water storage structure; a21 is the discharge electrode; a22 is the ground electrode; a2 is the pH sensor; a3 is the air stone; and a4 is the vent. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0028] It should be noted that the steps shown in the flowchart in the accompanying drawings can be executed in a computer system such as a set of computer-executable instructions, and although a logical order is shown in the flowchart, in some cases the steps shown or described may be executed in a different order than that shown here.

[0029] Example 1

[0030] Embodiment 1 of the present invention provides a control method for the preparation of disinfectant water, which is applied to a disinfectant water generating device, such as... Figures 1-4 As shown, the disinfectant water generating device includes a water storage structure a1, a discharge electrode a21, a ground electrode a22, an air inlet channel, and an air bubble a3. The discharge electrode a21 is disposed within the water storage structure a1 and is adapted to be connected to the live wire of the power supply device. The ground electrode a22 is disposed within the water storage structure a1 and is adapted to be connected to the neutral wire of the power supply device. The air bubble a3 is disposed within the water storage structure a1 and is connected to the air outlet end of the air inlet channel.

[0031] exist Figure 4 In the middle, a pH sensor a2 is installed in the water storage structure a1; the arrow indicates the direction of air flow. The disinfectant water generator can inject air into the air intake channel, and generate plasma by generating a glow discharge effect through the electrode discharge in the air intake channel. Then, the gas containing plasma is mixed with the liquid to form disinfectant water. The unmixed gas is discharged through the exhaust port a4 to prevent the internal air pressure of the device from being too high.

[0032] Figure 5 This is a schematic flowchart of the disinfectant preparation and control method in Embodiment 1 of the present invention, as shown below. Figure 5 As shown, the control method for preparing disinfectant water in Embodiment 1 of the present invention includes the following steps:

[0033] S101: obtaining a real change rate of the PH value in the water storage structure at a current time after the discharge electrode is started.

[0034] Specifically, obtaining the real change rate of the PH value in the water storage structure at the current time comprises: obtaining a current PH value in the water storage structure at the current time; obtaining an original PH value in the water storage structure before a preset time period; and obtaining the real change rate of the PH value in the water storage structure according to the current PH value, the original PH value and the preset time period.

[0035] For example, the current time is 120 seconds after the discharge electrode is started, and the preset time period is 5 seconds. The method for obtaining the real change rate of the PH value at 120 seconds after the discharge electrode is started comprises: obtaining the current PH value at 120 seconds after the discharge electrode is started, obtaining the original PH value at 116 seconds after the discharge electrode is started, and obtaining the real change rate of the PH value at 120 seconds by subtracting the original PH value at 116 seconds from the current PH value at 120 seconds and then dividing the result by 5 seconds.

[0036] S102: obtaining a preset PH value standard change rate.

[0037] S103: adjusting the power of the discharge electrode according to the real change rate of the PH value and the PH value standard change rate.

[0038] As a specific implementation, the method for adjusting the power of the discharge electrode according to the real change rate of the PH value and the PH value standard change rate comprises: reducing the power of the discharge electrode when the real change rate of the PH value is greater than the PH value standard change rate interval; and increasing the power of the discharge electrode when the real change rate of the PH value is less than the PH value standard change rate interval.

[0039] Specifically, the method for reducing the power of the discharge electrode comprises: calculating a difference between the real change rate of the PH value and the PH value standard change rate, determining a first adjustment amount of the power of the discharge electrode according to the difference, obtaining a current power of the discharge electrode, and reducing the first adjustment amount on the basis of the current power.

[0040] Specifically, the method for increasing the power of the discharge electrode comprises: calculating a difference between the real change rate of the PH value and the PH value standard change rate, determining a second adjustment amount of the power of the discharge electrode according to the difference, obtaining a current power of the discharge electrode, and increasing the second adjustment amount on the basis of the current power.

[0041] Further, before adjusting the power of the discharge electrode according to the actual PH value change rate and the standard PH value change rate, the method further comprises: determining whether the actual PH value change rate is in a preset change rate interval; when the actual PH value change rate is not in the change rate interval, adjusting the power of the discharge electrode according to the actual PH value change rate and the standard PH value change rate; when the actual PH value change rate is in the change rate interval, determining that the power adjustment of the discharge electrode is completed, and controlling the discharge electrode to work according to the current power.

[0042] That is, the power of the discharge electrode is adjusted according to the actual PH value change rate and the standard PH value change rate until the actual PH value change rate is in the preset change rate interval. Specifically, the preset change rate interval can be determined according to the standard PH value change rate. For example, when the standard PH value change rate is 0.4, the actual PH value change rate is in 0.4±0.1, and the power adjustment of the discharge electrode is completed.

[0043] As another specific embodiment, the adjusting the power of the discharge electrode according to the actual PH value change rate and the standard PH value change rate comprises: using a preset PID control algorithm to control according to the actual PH value change rate and the standard PH value change rate, so that the actual PH value change rate reaches the change rate interval.

[0044] Further, the control method of the sterilization water preparation further comprises: obtaining a current PH value in the water storage structure at the current time; obtaining an initial PH value in the water storage structure before the discharge electrode is started; and when the current PH value reaches a preset target value or a difference between the current PH value and the initial PH value is greater than or equal to a preset change threshold, the discharge electrode is turned off.

[0045] That is, when one of the following two conditions is detected, it can be considered that the sterilization water preparation is completed:

[0046] Condition one: the PH value of the solution decreases to A

[0047] When it is detected at a certain time that the PH value An of the solution at this time is less than or equal to the target PH value A, it can be considered that the sterilization solution preparation is completed, and the electrode discharge is stopped at this time.

[0048] Condition two: the PH value change of the solution reaches △A

[0049] When it is detected at a certain time that the PH value An of the solution is not decreased to the target PH value A, but at this time (An-A1)≥total change value △A of acidity and alkalinity, it can be considered that the sterilization solution preparation is completed.

[0050] The water storage structure of the disinfectant water generating device provided by the embodiment 1 of the present application is provided with an air inlet channel, and a bubble stone is arranged in the water storage structure and connected with the air outlet end of the air inlet channel. When the disinfectant water is prepared, the power supply device provides a high frequency alternating voltage of about 10kv-12kv to the disinfectant water generating device, air enters the water storage structure through the air inlet channel, the discharge electrode of the disinfectant water generating device generates a discharge arc phenomenon, so that the air in the air inlet channel is electrolyzed to generate ozone and nitrogen oxides. The ozone generated by electrolysis can be discharged into the bubble stone through the air outlet end of the air inlet channel. Since the bubble stone has a porous structure, it can disperse the ozone from the air inlet channel into uniform and small bubbles and release them into the water, thereby effectively increasing the contact area between the ozone and the water, increasing the solubility of the ozone, making the ozone concentration in the prepared disinfectant water higher, having a better disinfection and sterilization effect, and reducing the risk of ozone not being dissolved in the water, ozone being discharged to pollute the air or produce odor. In addition, the nitrogen oxides generated by electrolysis of air can generate nitric acid and nitrous acid with strong oxidizing property after being dissolved in water, and the water vapor carried by the air can generate hydroxyl radicals after being electrolyzed, and the hydroxyl radicals can generate hydrogen peroxide with strong oxidizing property after being dissolved in water, thereby further improving the disinfection and sterilization effect of the disinfectant water. Therefore, the control method for preparing disinfectant water detects the PH value of the disinfectant liquid generated after the plasma-containing air is dissolved in water to determine whether the preparation efficiency and preparation effect meet the standards, and forms a closed loop control of the electrode discharge power based on the detection result. This method can solve the problems of large energy consumption and unstable disinfectant liquid preparation effect in the real-time preparation method, and can save energy and ensure the effect of the disinfectant liquid.

[0051] In order to explain the disinfectant water preparation control method of the embodiment 1 of the present application in detail, a specific example is given. Figure 6 The flowchart of the disinfectant water preparation control method of the example of the embodiment 1 of the present application is shown in Figure 6 The disinfectant water preparation control method of the example includes the following steps:

[0052] After the whole machine enters the disinfectant water preparation stage, the sensor obtains the initial water solution PH value A1 and records it. The discharge electrode first works at a preset power P (the electrode discharge power measured after a large number of experiments, and the preset power is large). After a time t, the solution PH value is detected again to obtain a new PH value A2. Thus, the current preparation efficiency (i.e. the actual change rate of the PH value) S1=(A2-A1) / t is obtained. The current preparation efficiency (i.e. the standard change rate of the PH value) S1 is compared with the design preparation efficiency S and ±B.

[0053] ① If the current preparation efficiency S1 is greater than the design preparation efficiency S by more than +B, it is considered that the current preparation efficiency S1 is much greater than the design preparation efficiency S, and the power adjustment amount is reduced by the amplitude △P2 (negative) to reduce the current working power of the electrode, thereby reducing the power consumption of the electrode.

[0054] If +B > current preparation efficiency S1 - design preparation efficiency S > B, it is considered that the current preparation efficiency S1 is greater than and close to the design preparation efficiency S, and thus the electrode current working power is reduced by the power adjustment amount of amplitude ΔP1 (negative) to reduce the electrode power consumption;

[0055] If B > current preparation efficiency S1 - design preparation efficiency S ≥ -B, it is considered that the current preparation efficiency S1 is less than and close to the design preparation efficiency S, and thus the electrode current working power is increased by the power adjustment amount of amplitude ΔP1 to improve the disinfectant preparation efficiency.

[0056] If -B > current preparation efficiency S1 - design preparation efficiency S, it is considered that the current preparation efficiency S1 is far less than the design preparation efficiency S, and thus the electrode current working power is increased by the power adjustment amount of amplitude ΔP2 to improve the disinfectant preparation efficiency.

[0057] After a period of time t, a new PH value A3 of the solution is sampled, the preparation efficiency S2 = (A3-A2) / t is calculated, the current preparation efficiency S2 and the design preparation efficiency are compared, and the above control logic is repeated until the actual preparation efficiency meets the requirements.

[0058] Since the PH value of water (tap water, pure water, etc.) as a raw material ranges from 6.5 to 8.5, when one of the following two conditions is detected, it can be considered that the disinfectant preparation is completed.

[0059] Case 1: the PH value of the solution drops to A

[0060] When the PH value An of the solution is detected at a certain time, it can be considered that the disinfectant preparation is completed, and the electrode discharge is stopped at this time.

[0061] Case 2: the PH value of the solution changes by ΔA

[0062] When the PH value An of the solution is detected at a certain time, it can be considered that the disinfectant preparation is completed.

[0063] As can be seen, in the embodiment 1 of the present application, the electrode is controlled to discharge at a certain power to electrolyze air and generate plasma, the PH value of the disinfectant produced after the air containing the plasma is dissolved in water is detected to determine whether the preparation efficiency and preparation effect meet the requirements, and the detection result is used as a basis to form a closed-loop control of the electrode discharge power. This method can solve the problems of large energy consumption and unstable disinfectant preparation effect in the real-time preparation method, and it is energy-saving and ensures the disinfectant effect.

[0064] The current plasma disinfection device applied to the dishwasher generates plasma in a fixed generation time mode when manufacturing disinfectant water containing plasma. This method has uncertainty. Different power and different air flow rate will affect ionization efficiency and further affect the concentration of generated plasma. The detection and control method proposed in the patent intelligently controls the preparation process of plasma by adjusting the electrode power and detecting the liquid PH value, ensuring the sterilization effect of the prepared disinfectant under the premise of saving electricity.

[0065] Embodiment 2

[0066] Corresponding to the embodiment 1 of the present application, the embodiment 2 of the present application provides a control device for disinfectant water preparation, which is applied to a disinfectant water generating device. As shown in Figures 1-4 The disinfectant water generating device includes a water storage structure a1, a discharge electrode a21, a ground electrode a22, an air inlet channel and an air bubble stone a3. The discharge electrode a21 is arranged in the water storage structure a1 and is adapted to be connected with the live wire of a power supply device. The ground electrode a22 is arranged in the water storage structure a1 and is adapted to be connected with the zero line of the power supply device. The air bubble stone a3 is arranged in the water storage structure a1 and is connected with the air outlet end of the air inlet channel.

[0067] Figure 7 The structure diagram of the control device for disinfectant water preparation in the embodiment 2 of the present application is shown in Figure 7 The control device for disinfectant water preparation in the embodiment 2 of the present application includes an acquisition module 20 and an adjustment module 21.

[0068] After the discharge electrode is started, the acquisition module 20 is used to acquire the actual change rate of the PH value in the water storage structure at the current time.

[0069] The acquisition module 20 is also used to acquire a preset PH value standard change rate.

[0070] The adjustment module 21 is used to adjust the power of the discharge electrode according to the actual change rate of the PH value and the standard change rate of the PH value.

[0071] As a specific implementation, the adjustment module 21 is specifically used to: when the actual change rate of the PH value is greater than the standard change rate interval of the PH value, the power of the discharge electrode is reduced; when the actual change rate of the PH value is less than the standard change rate interval of the PH value, the power of the discharge electrode is increased.

[0072] More specifically, the adjusting module 21 is specifically configured to: calculate a difference between the actual PH value change rate and the standard PH value change rate, determine a first adjustment amount of the power of the discharge electrode according to the difference; acquire a current power of the discharge electrode; and reduce the first adjustment amount on the basis of the current power. Alternatively, the adjusting module 21 is specifically configured to: calculate a difference between the actual PH value change rate and the standard PH value change rate, determine a second adjustment amount of the power of the discharge electrode according to the difference; acquire a current power of the discharge electrode; and increase the second adjustment amount on the basis of the current power.

[0073] Further, the adjusting module 21 is further configured to: determine whether the actual PH value change rate is in a preset change rate interval; when the actual PH value change rate is not in the change rate interval, adjust the power of the discharge electrode according to the actual PH value change rate and the standard PH value change rate; and when the actual PH value change rate is in the change rate interval, determine that the power adjustment of the discharge electrode is completed, and control the discharge electrode to work according to a current power.

[0074] As a specific implementation, the adjusting module 21 is specifically configured to: control, according to the actual PH value change rate and the standard PH value change rate, by using a preset PID control algorithm, so that the actual PH value change rate reaches the change rate interval.

[0075] The acquiring module 20 is specifically configured to: acquire a current PH value in the water storage structure at the current time; acquire an original PH value in the water storage structure before a preset time period; and obtain, according to the current PH value, the original PH value and the preset time period, an actual PH value change rate in the water storage structure.

[0076] Further, the acquiring module 20 is further configured to: acquire a current PH value in the water storage structure at the current time, and acquire an initial PH value in the water storage structure before the discharge electrode is started. The adjusting module 21 is further configured to: when the current PH value reaches a preset target value or a difference between the current PH value and the initial PH value is greater than or equal to a preset change threshold, turn off the discharge electrode.

[0077] The specific details of the above disinfectant water preparation control device can be understood by referring to the corresponding related descriptions and effects of the embodiments shown in Figures 1 to 5 The specific details of the above disinfectant water preparation control device can be understood by referring to the corresponding related descriptions and effects of the embodiments shown in

[0078] Embodiment 3

[0079] The embodiment of the present application also provides a sterilization water generating device, which comprises a water storage structure a1, a discharge electrode a21, a ground electrode a22, an air inlet channel and air bubble stones a3, a PH sensor a2 is arranged in the water storage structure a1, the discharge electrode a21 is arranged in the water storage structure a1 and is adapted to be connected with a live wire of a power supply device, the ground electrode a22 is arranged in the water storage structure a1 and is adapted to be connected with a zero line of the power supply device, and the air bubble stones a3 are arranged in the water storage structure a1 and are connected with an air outlet end of the air inlet channel.

[0080] The PH sensor, the discharge electrode, the memory and the processor are connected with each other in communication, wherein the processor 71 and the memory 72 can be connected through a bus or other manners, Figure 8 The bus connection is taken as an example.

[0081] Further, the embodiment of the present application also provides a dishwasher, which comprises the sterilization water generating device.

[0082] The processor 71 can be a central processing unit (CPU). The processor 71 can also be other general-purpose processors, digital signal processors (DSP), application specific integrated circuits (ASIC), field-programmable gate arrays (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. chips, or a combination of the above-mentioned chips.

[0083] The memory 72 is a non-transient computer readable storage medium, which can be used to store non-transient software programs, non-transient computer executable programs and modules, such as the program instructions / modules of the control method for sterilization water preparation (for example, the acquisition module 20 and the adjustment module 21 shown in the embodiment of the present application) in the embodiment of the present application. The processor 71 executes various functions of the processor and data processing by running the non-transient software programs, instructions and modules stored in the memory 72, that is, the control method for sterilization water preparation in the above-mentioned method embodiment is realized. Figure 7

[0084] ​The memory 72 can include a program storage area and a data storage area, where the program storage area can store an operating system, at least one application required by a function, and the data storage area can store data created by the processor 71 and the like. In addition, the memory 72 can include a high-speed random access memory, and can also include a non-transitory memory such as at least one disk storage device, a flash memory device, or other non-transitory solid-state memory device. In some embodiments, the memory 72 can optionally include a memory disposed remotely with respect to the processor 71, which can be connected to the processor 71 through a network. Examples of the network include, but are not limited to, the Internet, an intranet, a local area network, a mobile communication network, and combinations thereof.

[0085] The one or more modules are stored in the memory 72 and, when executed by the processor 71, perform the method as described above. Figures 1-6 The control method of the disinfectant water preparation in the embodiment shown.

[0086] The above-described details of the dishwasher can be referred to in the corresponding description and effects of the embodiment shown, and will not be described here. Figures 1 to 7 The above-described details of the dishwasher can be referred to in the corresponding description and effects of the embodiment shown, and will not be described here.

[0087] Those skilled in the art can understand that all or part of the processes in the above-mentioned embodiment methods can be completed by a computer program instructing related hardware, and the program can be stored in a computer-readable storage medium. When the program is executed, it can include the processes of the above-mentioned embodiment methods. The storage medium can be a magnetic disk, an optical disk, a read-only memory (ROM), a random access memory (RAM), a flash memory, a hard disk drive (HDD) or a solid-state drive (SSD), etc. The storage medium can also include a combination of the above-mentioned types of memories.

[0088] Although the embodiments of the present application are described in conjunction with the accompanying drawings, various modifications and changes can be made by those skilled in the art without departing from the spirit and scope of the present application, and such modifications and changes fall within the scope defined by the appended claims.

Claims

1. A control method of sterilizing water preparation applied to a sterilizing water generating device, characterized by, The disinfectant water generating device comprises a water storage structure (a1), a discharge electrode (a21), a ground electrode (a22), an air inlet channel and an air bubble stone (a3), the discharge electrode (a21) is arranged in the water storage structure (a1) and is adapted to be connected with a live wire of a power supply device; the ground electrode (a22) is arranged in the water storage structure (a1) and is adapted to be connected with a zero line of the power supply device; the air bubble stone (a3) is arranged in the water storage structure (a1), the air bubble stone (a3) is connected with an air outlet end of the air inlet channel, and a control method for preparing the disinfectant water comprises: After the discharge electrode is started, an actual change rate of a PH value in the water storage structure at a current time is obtained; A preset PH value standard change rate is obtained; The power of the discharge electrode is adjusted according to the actual change rate of the PH value and the PH value standard change rate; The actual change rate of the PH value in the water storage structure at the current time comprises: A current PH value in the water storage structure at the current time is obtained; An original PH value in the water storage structure in a preset time period before the current time is obtained; The actual change rate of the PH value in the water storage structure is obtained according to the current PH value, the original PH value and the preset time period; Further comprising: A current PH value in the water storage structure at the current time is obtained; An initial PH value in the water storage structure before the discharge electrode is started is obtained; When the current PH value reaches a preset target value or a difference between the current PH value and the initial PH value is greater than or equal to a preset change threshold, the discharge electrode is turned off.

2. The method of claim 1, wherein, The power of the discharge electrode is adjusted according to the actual change rate of the PH value and the PH value standard change rate, which comprises: When the actual change rate of the PH value is greater than the PH value standard change rate interval, the power of the discharge electrode is reduced; When the actual change rate of the PH value is less than the PH value standard change rate interval, the power of the discharge electrode is increased.

3. The method of claim 2, wherein, The power of the discharge electrode is reduced, which comprises: A difference between the actual change rate of the PH value and the PH value standard change rate is calculated, and a first adjustment amount of the power of the discharge electrode is determined according to the difference; A current power of the discharge electrode is obtained; The first adjustment amount is reduced on the basis of the current power; And / or, the power of the discharge electrode is increased, which comprises: A difference between the actual change rate of the PH value and the PH value standard change rate is calculated, and a second adjustment amount of the power of the discharge electrode is determined according to the difference; A current power of the discharge electrode is obtained; The second adjustment amount is increased on the basis of the current power.

4. The method of claim 1, wherein, Before the power of the discharge electrode is adjusted according to the actual change rate of the PH value and the PH value standard change rate, further comprising: It is judged whether the actual change rate of the PH value is in a preset change rate interval; When the actual change rate of the PH value is not in the change rate interval, the power of the discharge electrode is adjusted according to the actual change rate of the PH value and the PH value standard change rate. When the actual PH value change rate is in the change rate interval, it is determined that the power adjustment of the discharge electrode is completed, and the discharge electrode is controlled to work at the current power.

5. The method of claim 4, wherein, The power of the discharge electrode is adjusted according to the actual PH value change rate and the standard PH value change rate, which comprises: According to the actual PH value change rate and the standard PH value change rate, a preset PID control algorithm is used for control, so that the actual PH value change rate reaches the change rate interval.

6. A control device for preparing sterilized water, applied to a sterilized water generating device, characterized by, The disinfectant water generating device comprises a water storage structure (a1), a discharge electrode (a21), a ground electrode (a22), an air inlet channel and a bubble stone (a3). The discharge electrode (a21) is arranged in the water storage structure (a1) and is adapted to be connected with a live wire of a power supply device. The ground electrode (a22) is arranged in the water storage structure (a1) and is adapted to be connected with a zero line of the power supply device. The bubble stone (a3) is arranged in the water storage structure (a1) and is connected with an air outlet end of the air inlet channel. The control device for preparing disinfectant water comprises an acquisition module and an adjustment module. After the discharge electrode is started, the acquisition module is used to acquire the actual PH value change rate in the water storage structure at the current time; The acquisition module is also used to acquire a preset PH value standard change rate; The adjustment module is used to adjust the power of the discharge electrode according to the actual PH value change rate and the PH value standard change rate; The acquisition module is specifically used to acquire a current PH value in the water storage structure at the current time, acquire an original PH value in the water storage structure before a preset time period, and acquire the actual PH value change rate in the water storage structure according to the current PH value, the original PH value and the preset time period. The acquisition module is also used to acquire a current PH value in the water storage structure at the current time and acquire an initial PH value in the water storage structure before the discharge electrode is started. The adjustment module is also used to close the discharge electrode when the current PH value reaches a preset target value or a difference between the current PH value and the initial PH value is greater than or equal to a preset change threshold.

7. A sterilizing water generating device characterized by comprising: It comprises: A water storage structure (a1) is provided with a PH sensor in the water storage structure (a1); A discharge electrode (a21) is arranged in the water storage structure (a1) and is adapted to be connected with a live wire of a power supply device; A ground electrode (a22) is arranged in the water storage structure (a1) and is adapted to be connected with a zero line of the power supply device; An air inlet channel is arranged on the water storage structure (a1) and is adapted to introduce air. The air inlet channel is arranged around the discharge electrode (a21); A bubble stone (a3) is arranged in the water storage structure (a1) and is connected with an air outlet end of the air inlet channel. A memory and a processor, the PH sensor, the discharge electrode, the memory and the processor are in communication connection with each other, the memory has computer instructions stored therein, and the processor executes the computer instructions to perform the control method for preparing the sterilization water according to any one of claims 1-5.

8. A dishwasher, characterized in that The sterilization water generating device according to claim 7 is included.

9. A computer-readable storage medium, characterized in that, The computer readable storage medium has computer instructions stored therein, and the computer instructions are used to make a computer execute the control method for preparing the sterilization water according to any one of claims 1-5.

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