CN112603229B

CN112603229B - Device for dish washing machine and dish washing machine

Info

Publication number: CN112603229B
Application number: CN202011345854.5A
Authority: CN
Inventors: 孟繁轲; 莫烨强
Original assignee: Foshan Shunde Midea Washing Appliances Manufacturing Co Ltd
Current assignee: Foshan Shunde Midea Washing Appliances Manufacturing Co Ltd
Priority date: 2020-11-25
Filing date: 2020-11-25
Publication date: 2022-12-13
Anticipated expiration: 2040-11-25
Also published as: CN112603229A

Abstract

The embodiment of the invention provides a device for a dish washing machine and the dish washing machine. The device comprises: an electrolysis apparatus comprising an electrolysis electrode pair; a total dissolved solids detector for detecting a total dissolved solids value of the water electrolyzed by the electrolysis apparatus; a regulating device for regulating the power of the electrolysis device and/or the flow rate of the water input to the electrolysis device; a processor configured to: obtaining a detected total dissolved solids value; the regulating device is controlled to regulate the power of the electrolysis device and/or regulate the flow rate of water input to the electrolysis device according to the total dissolved solids value.

Description

Device for dish washing machine and dish washing machine

Technical Field

The invention relates to the technical field of kitchen and bathroom appliances, in particular to a dishwasher and a device for the same.

Background

The sterilization technique for water treated electrochemically is applied to a dish washer, which can efficiently produce sterilized water without adding any compound to the water to be treated. However, the technology is based on that various chemical substances with strong oxidizing property, such as free hydroxyl, ozone, hydrogen peroxide, hypochlorite and the like generated by electrochemical water treatment, have the effect of killing microorganisms, such as bacteria and the like. The raw water is used for cleaning, so that tableware, fruits, vegetables and meat can be better in sanitary environment.

In practical applications, however, ions in water (mainly calcium and magnesium ions) are easily deposited on the cathode in the form of scale due to the potential difference between the electrolysis electrodes. As the amount of scale deposited on the cathode increases, the cell pressure increases and the electrolytic effect decreases. This does not provide the user with the desired effect. Accordingly, there is a need for improvements in the art.

Disclosure of Invention

In order to solve the technical problems, the invention aims to provide a device for a dish washing machine and the dish washing machine.

To achieve the above object, in a first aspect of the present invention, there is provided an apparatus for a dishwasher, the apparatus comprising an electrolysis device comprising an electrolysis electrode pair; a total dissolved solids detector for detecting a total dissolved solids value of the water electrolyzed by the electrolysis apparatus; a regulating device for regulating the power of the electrolysis device and/or the flow rate of the water input to the electrolysis device; a processor configured to: obtaining a detected total dissolved solids value; the regulating device is controlled to regulate the power of the electrolysis device and/or to regulate the flow rate of water fed to the electrolysis device depending on the total dissolved solids value.

In an embodiment of the application, the processor is further configured to: in the case that the total dissolved solids value is greater than the first threshold value, the control regulating device reduces the power of the electrolysis device and/or reduces the flow rate of the water fed to the electrolysis device.

In a second aspect of the invention, the processor is further configured to: in case the total dissolved solids value is smaller than a second threshold value, which is smaller than the first threshold value, the control and regulation device increases the power of the electrolysis device and/or increases the flow rate of the water input to the electrolysis device.

In an embodiment of the application, the processor being configured to execute the controlling the regulating device to reduce the power of the electrolysis device and/or to reduce the flow rate of water input to the electrolysis device comprises the processor being configured to: determining a difference between the total dissolved solids value and a first threshold value; controlling the regulating equipment to regulate the reduction power of the electrolysis equipment through a PID algorithm according to the difference value; and/or controlling the regulating device to reduce the flow rate through a PID algorithm according to the difference value.

In the embodiment of the application, the electrolysis electrode pair comprises an electrolysis anode and an electrolysis cathode, and water flows between the electrolysis anode and the electrolysis cathode; the adjusting device comprises: a flow control valve for adjusting the flow rate of water input to the electrolysis apparatus; and the voltage controller is used for regulating the power of the electrolysis equipment.

In an embodiment of the application, the processor being configured to control the regulating device to regulate the power of the electrolysis device and/or to regulate the flow rate of water input to the electrolysis device in dependence on the total dissolved solids value comprises the processor being configured to: the power is kept constant, and the flow rate variation of the flow rate which needs to be regulated by the flow control valve is determined according to the power; determining the maximum flow rate variation of the flow rate regulated by the flow control valve in unit time according to the flow rate variation; and controlling the flow control valve to adjust the flow rate through the maximum flow rate variable quantity.

In an embodiment of the application, the adjusting apparatus further comprises: the first PWM controller is electrically connected with the flow control valve and used for controlling the flow control valve to adjust the flow speed in a mode of changing the duty ratio, and the second PWM controller is electrically connected with the voltage controller and used for controlling the voltage controller to adjust the power of the electrolysis equipment in a mode of changing the duty ratio.

In an embodiment of the application, the processor being configured to control the regulating device to regulate the power of the electrolysis device and/or to regulate the flow rate of water input to the electrolysis device in dependence on the total dissolved solids value comprises the processor being configured to: controlling a water quantity regulating valve to regulate the flow rate, and simultaneously controlling electrolysis equipment to regulate the power; reducing a preset first duty ratio in unit time through a first PWM controller so as to control a water quantity regulating valve to regulate the flow rate; and reducing the preset second duty ratio in unit time through a second PWM controller to control the voltage controller to regulate the power of the electrolysis device.

In the embodiment of the application, the device also comprises a pH detection device for detecting the current pH value of the electrolyzed water; the processor is further configured to; reading the current PH value under the condition that the total dissolved solid value is lower than a preset second threshold value; comparing the current PH value with a preset PH threshold value to obtain a PH deviation value; and controlling the electrolytic equipment to regulate power by a PID algorithm according to the PH deviation value.

In the embodiment of the application, when the pH value is higher than the preset rated pH value, the pH deviation value is a positive value, and when the pH value is lower than the preset rated pH value, the pH deviation value is a negative value; the processor being configured to control the electrolysis apparatus to adjust power based on the PH deviation value comprises the processor being configured to: controlling the electrolysis equipment to reduce power under the condition that the PH deviation value is a positive value; and controlling the electrolysis equipment to increase the power under the condition that the PH deviation value is a negative value.

In a second aspect of the invention, a dishwasher is provided, comprising a device according to the above.

In another aspect, a computer-readable storage medium is provided, which has instructions stored thereon for enabling a processor to perform the steps according to the above steps the processor needs to perform when being executed by the processor.

Through the technical scheme, the total dissolved solid detector is arranged to detect the total dissolved solid value of the water electrolyzed by the electrolysis equipment, the power of the electrolysis equipment and the flow rate of the water are controlled through the change of the total dissolved solid value, the work of the electrolysis module can be more accurately monitored so as to adjust the parameters of the electrolysis system, the content of oxidizing substances generated by electrolysis is improved, and the risk of scaling is reduced.

Additional features and advantages of embodiments of the present invention will be described in the detailed description which follows.

Drawings

The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the embodiments of the invention without limiting the embodiments of the invention. In the drawings:

FIG. 1 is a schematic block diagram of an apparatus for a dishwasher provided in accordance with an embodiment of the present invention;

FIG. 2 is a schematic flow chart of the steps required for operation of a processor in the device for a dishwasher according to an embodiment of the present invention;

FIG. 3 is a schematic flow chart of the operation S12 required by the processor in the dishwasher according to the embodiment of the present invention;

FIG. 4 is another schematic flow chart of the step S12 required for the operation of the processor in the dishwasher provided by the embodiment of the present invention;

FIG. 5 is a schematic flowchart of the operation S121 required by the processor in the dishwasher according to the embodiment of the present invention;

FIG. 6 is a schematic block diagram of another embodiment of an apparatus for a dishwasher in accordance with the present invention;

FIG. 7 is another flow chart of steps executed by a device processor for a dishwasher in accordance with an embodiment of the present invention.

Description of the reference numerals

100. A device; 10. An electrolysis apparatus;

20. a total dissolved solids detector; 30. A conditioning device;

301. a flow control valve; 302. A voltage controller;

303. a first PWM controller; 304. A second PWM controller;

40. a processor; 101. An electrolytic electrode pair;

1011. an electrolytic anode; 1012. And (4) electrolyzing the cathode.

Detailed Description

The following describes in detail embodiments of the present invention with reference to the drawings. It should be understood that the detailed description and specific examples, while indicating embodiments of the invention, are given by way of illustration and explanation only, not limitation.

It should be noted that all directional indicators (such as up, down, left, right, front, and back \8230;) in the embodiments of the present invention are only used to explain the relative positional relationship between the components, the motion situation, etc. in a specific posture (as shown in the attached drawings), and if the specific posture is changed, the directional indicators are changed accordingly.

In addition, the descriptions related to "first", "second", etc. in the present invention are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the feature. In addition, the meaning of "and/or" appearing throughout is to include three juxtapositions, exemplified by "A and/or B" including either scheme A, or scheme B, or a scheme in which both A and B are satisfied. In addition, technical solutions between the embodiments may be combined with each other, but must be based on the realization of the technical solutions by a person skilled in the art, and when the technical solutions are contradictory to each other or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.

Referring to fig. 1, fig. 1 is a schematic block diagram of an apparatus for a dishwasher according to an embodiment of the present invention. An embodiment of the present invention first proposes a device for a dishwasher, the device 100 including:

an electrolysis apparatus 10, said electrolysis apparatus 10 comprising an electrolysis electrode pair 101;

a total dissolved solids detector 20 for detecting a total dissolved solids value of the water electrolyzed by the electrolysis apparatus 10;

a regulating device 30 for regulating the power of the electrolysis device and/or the flow rate of the water input to the electrolysis device;

the processor 40 may read the associated program in the memory and run it.

Referring to FIG. 2, FIG. 2 is a schematic flow chart illustrating the steps required for the processor to operate in the dishwasher according to the embodiment of the present invention; the processor, when running the program, is configured to perform the steps of:

step S11: obtaining a detected total dissolved solids value;

step S12: the regulating device is controlled to regulate the power of the electrolysis device and/or to regulate the flow rate of water fed to the electrolysis device depending on the total dissolved solids value.

As used herein, "Total dissolved solids" refers to the Total amount of dissolved solids, or TDS (Total dissolved solids, for short) in the water. One of the water quality control indexes. If the total dissolved solids detector 20 uses an electrical conductivity method to rapidly measure the TDS content of the water, the electrical conductivity method continuously monitors the water quality to instantaneously reflect the TDS change, which may be a newly contaminated signal.

The total dissolved solids detector 20, i.e., TDS detection sensor probe, detects a total dissolved solids value by being established on a channel after passing through the electrolysis apparatus 10.

The processor 40 may be an upper computer, and by reading the total dissolved solid value detected by the total dissolved solid detector 20, the processor 40 may set up a corresponding interface, and by setting up a specific ID of the total dissolved solid detector 20, if data of the sensor is to be obtained, the function interface for obtaining the data of the total dissolved solid detector 20 is only required to be called in an application program, so as to obtain the function interface of the total dissolved solid value.

Specifically, the electrolysis apparatus 10 includes an electrolysis electrode pair 101, and the electrolysis electrode pair 101 includes an electrolysis anode 1011 and an electrolysis cathode 1012, wherein a space may be left in the electrolysis anode 1011 and the electrolysis cathode 1012 to allow water to flow therethrough, thereby completing the electrolytic sterilization. For clearer expression, the embodiment of the present invention refers to water that has not passed through the pair of electrolysis electrodes 101 as "raw water", which may be municipal water or other water source, and further refers to water that has passed through the pair of electrolysis electrodes 101 as "electrolyzed water", the same applies hereinafter.

It is understood that the raw water can be caused to generate active oxygen components (a series of substances having strong oxidizing property such as hydroxyl radical, hydrogen peroxide, superoxide ion, etc.), hypochlorite ion, chlorine dioxide, chloroammonia, etc. by the electrolysis electrode pair 101. The strongly oxidized component is dissolved in tap water to change raw water into electrolyzed water, and tableware can be disinfected and sterilized in a dish washer. The strong oxidizing substances generated by the technology are completely derived from water molecules and residual chlorine in tap water through an electrolysis technology, so that no chemical substances are added, and no secondary pollutants are generated on food materials. The electrolysis device can adjust electrolysis parameters according to water quality to carry out effective electrolysis.

The adjusting device 30 may include:

a flow control valve 301 for adjusting the flow rate of water input to the electrolysis apparatus 10;

a voltage controller 302 for regulating the power of the electrolysis apparatus 10.

It can be understood that the flow control valve 301 adjusts the liquid resistance of the raw water flowing through the orifice by changing the flow area of the orifice in the valve, thereby realizing the control of the flow and the flow rate.

The voltage controller 302 may be a power source capable of applying various voltages, or may be a voltage regulator, and only needs to satisfy the target operating voltage applied to the electrolysis apparatus 10 by controlling it.

It will be appreciated that since the overall resistance is generally constant in the circuit system, an increase in the target operating voltage results in an increase in the current of the electrolysis device 10 in the electrodialysis system, since the power is generally proportional to the internal current, i.e. the power increases therewith.

In some embodiments, the current fluctuation of the electrolysis device 10 is monitored, during which the PID algorithm can be used to achieve the purpose of fast and dynamic voltage regulation, and the current is kept stable, thereby achieving the purpose of fast voltage regulation.

The electrolytic apparatus 10 used in the apparatus 100 described above has a problem in that the electrolytic water contains a large amount of calcium and magnesium ions, which tend to deposit on the cathode in the form of scale. As the amount of scale deposited on the cathode increases, the cell pressure increases and the electrolysis effect decreases; it is impossible for the user to achieve the effect intended by the user. The reason for forming the scale can be summarized in two directions of flow speed and total dissolved solids, and it can be understood that, under the condition of higher total dissolved solids, the ion proportion in the water, such as calcium and magnesium ions, is more, and if the flow speed is slower, the deposition is easy to occur.

Thus, with the above-described apparatus, the processor determines the total dissolved solids value by first obtaining the detected total dissolved solids value; that is, by reading the total dissolved solids value detected by the total dissolved solids detector 20, it can be understood that the total dissolved solids value is the total dissolved solids value of the water after electrolysis via the electrolysis apparatus 10.

After obtaining the total dissolved solids value, controlling the regulating device to regulate the power of the electrolysis device and/or regulating the flow rate of water input to the electrolysis device according to the total dissolved solids value is then performed.

Referring to fig. 3, fig. 3 is a schematic flow chart illustrating the operation of step S12 required by the processor in the dishwasher according to the embodiment of the present invention. Wherein a first threshold value, a second threshold value associated with the total dissolved solids value may be preset as a condition for the adjustment. That is, the specific manner of controlling the adjusting device to adjust the power of the electrolysis device and/or to adjust the flow rate of water input to the electrolysis device according to the total dissolved solids value may be as follows:

step S121, controlling the adjusting equipment to reduce the power of the electrolysis equipment and/or reduce the flow rate of water input into the electrolysis equipment under the condition that the total dissolved solid value is larger than a first threshold value;

and S122, controlling the adjusting device to increase the power of the electrolysis device and/or increase the flow rate of the water input into the electrolysis device under the condition that the total dissolved solid value is smaller than a second threshold value, wherein the second threshold value is smaller than the first threshold value.

It is understood that, firstly, the above-mentioned terms "first threshold" and "second threshold" are defined, the first threshold and the second threshold are to be between the normal total dissolved solids value, the normal electrolysis range is to ensure that the total dissolved solids value does not cause excessive scale, and is to be in the range that can effectively perform sterilization, such as scale is easily generated when the total dissolved solids value (default unit is mg/L, the same applies hereinafter) is greater than 500 through preliminary experiments, but the total dissolved solids value must be ensured to be more than 200 to achieve sterilization, and then the first threshold and the second threshold should ensure that the total dissolved solids value is selected between 200 and 500. Optionally, the embodiment of the present invention uses the first threshold as a larger value, and uses the second threshold as a smaller value, that is, the first threshold is the limit of scaling, and the second threshold is the limit of ensuring the sterilization and disinfection effect.

For step S121, in case the total dissolved solids value is greater than the first threshold value, and in case the total dissolved solids value is greater than the first threshold value, controlling the adjusting device to decrease the power of the electrolysis device and/or increase the flow rate of water input to the electrolysis device includes the following three ways:

assuming that the first threshold is set to 500, when the total dissolved solids value is greater than the first threshold, it is proved that the water contains more ions and is relatively easy to scale, and the information is fed back to the processor 40, and the processor 40 may execute the following steps:

the processor 40 controls the flow control valve 301 to change the flow area of the throttling opening in the valve, so as to reduce the flow speed of raw water passing through the electrolysis device 10;

controlling the voltage controller 302 by the processor 40 to vary the target operating voltage applied to the electrolysis apparatus 10, thereby reducing the power of the electrolysis apparatus 10 to electrolyze raw water;

the flow control valve 301 and the electrolysis device 10 are simultaneously controlled by the processor 40 in the above manner to simultaneously reduce the flow rate of raw water and to reduce the power of the electrolysis device 10 to electrolyze raw water.

It will be appreciated that fouling may be avoided in any of the three ways described above, which are to be understood as three different embodiments, which are specifically illustrated in the following specific examples.

Similarly, in the case where the total dissolved solids value is less than a second threshold value, controlling the regulating device to increase the power of the electrolysis device and/or to reduce the flow rate of water input to the electrolysis device, wherein the second threshold value is less than the first threshold value; it should be noted that, when the actual total dissolved solid value is smaller than the second threshold, it is proved that the total dissolved solid value in the electrolyzed water at this time cannot achieve the sterilization and disinfection effect, and the total dissolved solid value can achieve the proper sterilization and disinfection function through the following manner.

Assuming that the second threshold is 200, in the case where the total dissolved solids value is less than 200, the processor may perform the following three ways:

the processor 40 controls the flow control valve 301 to change the flow area of the throttling orifice in the valve, so as to increase the flow speed of the raw water passing through the electrolysis device 10;

controlling the voltage controller 302 by the processor 40 to vary the target operating voltage applied to the electrolysis apparatus 10, thereby increasing the power of the electrolysis apparatus 10 to electrolyze the raw water;

the flow control valve 301 and the electrolysis device 10 are simultaneously controlled by the processor 40 in the above manner, while increasing the flow rate of raw water and increasing the power of the electrolysis device 10 to electrolyze raw water.

It is understood that when the total dissolved solids value is less than the second threshold value, it should be distinguished from being greater than the first threshold value, and the total dissolved solids value is adjusted to be less than the first threshold value to prevent scaling, the flow rate of the raw water fed to the electrolysis apparatus 10 should be reduced so as to reduce the shearing force of the electrolyzed water in the electrolysis apparatus 10, so as to prevent the calcium and magnesium ions in the electrolyzed water from being combined with carbonate, phosphate and the like to scale under the action of the shearing force. And when the total dissolved solids value is less than the second threshold value, since more effective sterilization is aimed at this time, more amount of electrolyzed water can be added in the same unit time by increasing the flow rate input to the electrolysis apparatus, thereby producing more electrolyzed water to sterilize the dishes. Thus, it should be understood by those skilled in the art that in other general fields, scale is less likely to be deposited when the flow rate is faster, but due to the particularity of the electrolytic electrode pair 101, a large amount of bubbles and anions are generated through the electrolytic electrode pair 101, so that strong oxidizing property is generated, that is, the electrolytic water has a very strong ability to take electrons and a very weak ability to lose electrons, and is more stable to getting electrons than losing electrons, and a large amount of bubbles are generated between the electrolytic electrode pair 101 at the positive and negative poles (i.e., the electrolytic anode 1011 and the electrolytic cathode 1012), and when the flow rate of the raw water is faster, the amount of water increases per unit time, and the calcium and magnesium ions contained in the raw water continuously shear the anions generated by the electrolytic electrode pair, which is equivalent to stirring action to generate saturation, and easily cause scale to the electrolytic cathode 1012, thereby increasing the probability of scale formation. Therefore, when it is detected that the total dissolved solids value of the electrolyzed water after passing through the electrolysis apparatus 10 is greater than the first threshold value, the adjusting apparatus 30, i.e., the flow control valve 301 should be controlled to decrease the flow rate of the raw water input to the electrolysis apparatus 10.

After the raw water is electrolyzed by the electrolysis device 10 in the above manner, the step of cleaning and disinfecting the object to be cleaned with the electrolyzed water is performed, and the step may be performed by the processor 40 under synchronous control or may be performed by another independent processor.

In summary, in the embodiment of the present invention, the total dissolved solid detector is set to detect the total dissolved solid value of the water electrolyzed by the electrolysis apparatus, and the power of the electrolysis apparatus and the flow rate of the water are controlled by changing the total dissolved solid value, so that the operation of the electrolysis module can be more accurately monitored to adjust the parameters of the electrolysis system, and the content of the oxidizing substance generated by electrolysis is increased, and the risk of scaling is reduced.

A specific embodiment is provided below, which solves the above steps S121 and S122, that is, in the case that the total dissolved solids value is greater than the first threshold value or in the case that the total dissolved solids value is less than the second threshold value, and relates to a way of adjusting the power or the flow rate, or adjusting the power and the flow rate together. I.e., one way to adjust the power of the electrolysis apparatus 10 and the flow rate input to the electrolysis apparatus 10.

Referring to fig. 4, fig. 4 is another flow chart illustrating the operation of step S12 required by the processor in the dishwasher according to the embodiment of the present invention. The processor 40, when being configured to control the regulating device 30 to reduce the power of the electrolysis device 10 and/or to reduce the flow rate of water input to the electrolysis device 10, comprises a processor configured to:

step S21: the power is kept constant, and the flow rate variation of the flow rate required to be adjusted by the flow control valve 301 is determined according to the power;

step S22: determining the maximum flow rate variation of the flow rate regulated by the flow control valve 301 in unit time according to the flow rate variation;

step S23: the flow rate is adjusted by controlling the flow control valve 301 by the maximum flow rate variation amount.

It is understood that the above steps S21 and S23 are implemented based on the above case that the total dissolved solids value of the steps S121 and S122 is greater than the first threshold value, that is, the "adjustment" in the steps S21 to S23 can be a reduction operation in the steps S121 and S122, and the technical teaching about the adjustment in the steps S121 to S122 should be obtained through the steps S21 to S23.

The above steps S21 to S23 can be understood as that the electrolysis apparatus 10 is used to maintain a constant power, and only the flow rate is adjusted by controlling the flow rate control valve 301, that is, the sterilization quality of the electrolyzed water is firstly ensured, so as to maintain the power of the electrolyzed water constant, and then the flow rate variation of the flow rate which needs to be adjusted by the flow rate control valve is determined according to the power at this time, if the current power is 60W, the flow rate at which no scale is generated corresponding to the power can be 0.75 m/S according to the experiment made in advance, and if the current flow rate is 1.25 m/S at this time, the flow rate variation is 1.25 minus 0.75 to 0.5.

Then, according to the preset sterilization time, namely the sterilization duration set during the production of the dishwasher, and the obtained flow rate variation, the maximum flow rate variation of the flow rate regulated by the flow control valve in unit time can be known; so that the flow rate is adjusted by controlling the flow rate control valve 301 by the maximum flow rate variation amount during the sterilization time.

It can be understood that, by this way, the opening degree of the flow control valve 301 can be adjusted in a linear manner, and the corresponding flow rate can be adjusted at the end of the sterilization time, so that the service life of the flow control valve 301 can be ensured to the maximum extent, and when the electrolysis device 10 is used next time, the flow control valve 301 in the regulating device 30 can be prevented from being adjusted back and forth by operating at the default flow rate and power.

Embodiments of the present invention provide an improved convenience in this step in that rapid adjustments are achieved through the PID algorithm.

Referring to fig. 5, fig. 5 is a schematic flow chart illustrating the operation step S121 required by the processor in the dishwasher according to the embodiment of the present invention. When the processor 40 executes step S121, i.e. controls the adjusting device to reduce the power of the electrolysis device and/or reduce the flow rate of the water input to the electrolysis device, the following steps may be included:

step S1211, determining a difference between the total dissolved solids value and a first threshold value;

step S1212, controlling the adjusting device 30 to adjust the electrolysis device 10 to reduce power through the PID algorithm according to the difference value; and/or

And step S1213, controlling the regulating device 30 to reduce the flow rate by the PID algorithm according to the difference.

It can be understood that the PID algorithm calculates a control amount, i.e., a variation of a flow rate or a variation of a voltage of the voltage controller, from a difference between the total dissolved solids value and the first threshold value by using a ratio, an integral, and a differential according to the difference, by which the flow rate control valve 301 is controlled to adjust the flow rate of water input to the electrolysis apparatus 10, and the voltage controller 302 is controlled to adjust the power of the electrolysis apparatus 10, thereby achieving a rapid pressure adjustment and a rapid flow rate adjustment, thereby more effectively preventing the generation of scale. The service life of the dishwasher and the satisfaction of users are improved.

Referring to fig. 6, fig. 6 is another schematic block diagram of an apparatus for a dishwasher according to an embodiment of the present invention. Based on the above solution, an embodiment of the present invention further provides a specific embodiment, where the adjusting apparatus 30 may further include:

the first PWM controller 303 is electrically connected with the voltage controller 301 and is used for controlling the voltage controller 301 to regulate the power of the electrolysis device 10 by changing the duty ratio;

and the second PWM controller 304 is electrically connected to the flow control valve 302, and is used for controlling the flow control valve 302 to regulate the flow rate by changing the duty ratio.

It can be understood that the PWM controller belongs to common technical means in the industry, the invention is not elaborated too much, and the control of the analog signal in a digital mode is realized by adopting the PWM control, so that the cost and the power consumption can be greatly reduced.

Referring to fig. 7, fig. 7 is another flowchart illustrating the steps executed by the processor of the dishwasher according to an embodiment of the present invention. The processor being configured to control the adjustment device to adjust the power of the electrolysis device and/or to adjust the flow rate of water input to the electrolysis device as a function of the total dissolved solids value comprises the processor being configured to:

step S121': reducing a preset first duty ratio per unit time by the first PWM controller 303 to control the voltage controller 301 to adjust the power of the electrolysis apparatus 10;

step S122': the preset second duty ratio is reduced by the second PWM controller 304 per unit time to control the flow control valve 302 to adjust the flow rate.

It can be understood that the adjustment of the voltage controller 301 and the flow control valve 302 can be realized by the first PWM controller 303 and the second PWM controller 304 which are independent from each other, for example, the first duty ratio is preset to be 5%, the second duty ratio is preset to be 10%, and the adjustment of the flow control valve 302 and the adjustment of the power of the electrolysis device 301 can be simultaneously controlled by reducing the flow rate per second by 10% per unit time, for example, by reducing or increasing the power per second by 5%.

In a modification based on the above apparatus, the apparatus may further include:

the PH detection device is used for detecting the current PH value of the electrolyzed water;

the processor is further configured to;

reading the current PH value under the condition that the total dissolved solids value is lower than a preset second threshold value;

comparing the current PH value with a preset PH threshold value to obtain a PH deviation value;

and controlling the electrolysis equipment to adjust the power through a PID algorithm according to the PH deviation value.

This approach is based on the derivation scheme of step S1212 above, and it is considered that the power intuitiveness of the electrolysis apparatus performing PID feedback adjustment of the total dissolved solids value is not strong in consideration of the increase of the total dissolved solids value which may be caused by the generation of other ions not related to sterilization by the electrolysis apparatus. Therefore, the PH detection device can be additionally arranged, and the electrolysis equipment can be controlled by the PID algorithm to regulate the power (namely the voltage) more intuitively and effectively.

Specifically, it may be set that the PH deviation value is a positive value when the PH value is higher than the preset nominal PH value, and is a negative value when the PH value is lower than the preset nominal PH value; the processor being configured to control the electrolysis apparatus to adjust the power based on a pH offset value comprises the processor being configured to:

under the condition that the PH deviation value is a positive value, controlling the electrolysis equipment to reduce the power through a PID algorithm;

and under the condition that the PH deviation value is a negative value, controlling the electrolysis equipment to increase the power through a PID algorithm.

In some embodiments, the apparatus further comprises a user interaction module, the processor further configured to:

and if the flow rate and the power can cause scale when the power and the flow rate are lower than the preset power threshold value and the preset flow rate threshold value, informing the user through the user interaction module and uploading the power and the flow rate to a background.

It can be understood that the preset power threshold and the preset flow rate threshold refer to the lowest limit value which cannot meet the sterilization, that is, the effect of sterilization and disinfection by using the electrolyzed water cannot be realized under the power and the flow rate at the moment. But scale can still be produced at this moment, in order to prevent the dish washer damage, can inform the user through user interaction module to upload the backstage and carry out maintenance and preparation.

It will also be understood by those skilled in the art that if the method or apparatus of the present invention is simply changed or modified, the functions added to the above method may be combined or replaced with other devices, such as the replacement of model materials for each component, the replacement of usage environment, the simple replacement of positional relationship between each component, etc.; or the products formed by the components are integrally arranged; or a detachable design; it is within the scope of the present invention to replace the methods and apparatus of the present invention with any method/apparatus/device that combines the components to form a method/apparatus/device with specific functionality.

The embodiment of the invention also provides a dishwasher, which comprises the device. It should be understood that the dishwasher is not limited to the dimensions, shape and contour, but only needs to use the corresponding elements of the device to achieve the same or similar functions, and shall also fall within the protection scope of the present invention.

The dishwasher may further include:

the water flow channel is used for introducing raw water into the electrolytic cell;

an electrolytic bath as a carrier for the raw water to generate electrolytic water through an electrolytic reaction;

the electrolytic bath is not limited to a square-shaped one, and may be a cup-shaped one.

The device further comprises a memory, in which the above-mentioned device for a dishwasher can be stored as a program element, the execution of which program element stored in the memory by the processor realizes the corresponding function.

The processor comprises a kernel, and the kernel calls the corresponding program unit from the memory. The kernel can be set to be one or more, and the spraying arm of the dish washing machine is controlled to wash the tableware according to the tableware image by adjusting the kernel parameters.

The memory may include volatile memory in a computer readable medium, random Access Memory (RAM) and/or nonvolatile memory such as Read Only Memory (ROM) or flash memory (flash RAM), and the memory includes at least one memory chip.

A sixth embodiment of the present invention provides a machine-readable storage medium having stored thereon a program which, when executed by a processor, implements the device method for a dishwasher.

A seventh embodiment of the present invention provides a processor for running a program, wherein the program is run to execute the device method for a dishwasher.

As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and so forth) having computer-usable program code embodied therein.

The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

In a typical configuration, a computing device includes one or more processors (CPUs), input/output interfaces, network interfaces, and memory.

The memory may include forms of volatile memory in a computer readable medium, random Access Memory (RAM) and/or non-volatile memory, such as Read Only Memory (ROM) or flash memory (flash RAM). The memory is an example of a computer-readable medium.

Computer-readable media, including both non-transitory and non-transitory, removable and non-removable media, may implement information storage by any method or technology. The information may be computer readable instructions, data structures, modules of a program, or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), static Random Access Memory (SRAM), dynamic Random Access Memory (DRAM), other types of Random Access Memory (RAM), read Only Memory (ROM), electrically Erasable Programmable Read Only Memory (EEPROM), flash memory or other memory technology, compact disc read only memory (CD-ROM), digital Versatile Disks (DVD) or other optical storage, magnetic cassettes, magnetic tape magnetic disk storage or other magnetic storage devices, or any other non-transmission medium, which can be used to store information that can be accessed by a computing device. As defined herein, a computer readable medium does not include a transitory computer readable medium such as a modulated data signal and a carrier wave.

It should also be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrases "comprising a," "8230," "8230," or "comprising" does not exclude the presence of additional identical elements in the process, method, article, or apparatus comprising the element.

The above are merely examples of the present application and are not intended to limit the present application. Various modifications and changes may occur to those skilled in the art to which the present application pertains. Any modification, equivalent replacement, improvement or the like made within the spirit and principle of the present application shall be included in the scope of the claims of the present application.

Claims

1. A device for a dishwasher, the device comprising:

an electrolysis apparatus comprising an electrolysis electrode pair comprising an electrolysis anode and an electrolysis cathode, water flowing between the electrolysis anode and the electrolysis cathode;

a total dissolved solids detector for detecting a total dissolved solids value of the water electrolyzed by the electrolysis apparatus;

a regulating device for regulating the power of the electrolysis device and/or the flow rate of water input to the electrolysis device; the adjusting apparatus includes:

a flow control valve for adjusting a flow rate of water input to the electrolysis apparatus;

a voltage controller for regulating the power of the electrolysis apparatus;

a processor configured to:

obtaining the detected total dissolved solids value;

controlling the regulating device to regulate the power of the electrolysis device and/or regulate the flow rate of water input to the electrolysis device according to the total dissolved solids value;

in the case where the total dissolved solids value is greater than a first threshold value, controlling the regulating device to reduce the power of the electrolysis device and/or to reduce the flow rate of water input to the electrolysis device;

in the event that the total dissolved solids value is less than a second threshold value, controlling the regulating device to increase the power of the electrolysis device and/or to increase the flow rate of water input to the electrolysis device, wherein the second threshold value is less than the first threshold value;

the power is kept constant, and the flow rate variation of the flow rate which needs to be adjusted by the flow control valve is determined according to the power;

determining the maximum flow rate variation of the flow rate regulated by the flow control valve in unit time according to the flow rate variation;

and controlling the flow control valve to adjust the flow rate according to the maximum flow rate change.

2. The apparatus of claim 1, wherein the processor being configured to perform controlling the regulating device to reduce the power of the electrolysis device and/or to reduce the flow rate of water input to the electrolysis device comprises the processor being configured to:

determining a difference between the total dissolved solids value and a first threshold value;

controlling the regulating equipment to regulate the reduction power of the electrolysis equipment through a PID algorithm according to the difference value; and/or

And controlling the regulating equipment to reduce the flow rate through a PID algorithm according to the difference value.

3. The apparatus of claim 1, wherein the adjustment device further comprises:

the first PWM controller is electrically connected with the voltage controller and used for sending a first PWM signal for adjusting the power of the electrolysis equipment to the voltage controller;

and the second PWM controller is electrically connected with the flow control valve and used for sending a second PWM signal for adjusting the flow rate to the flow control valve.

4. The apparatus of claim 3, wherein the processor being configured to control the adjustment device to adjust the power of the electrolysis device and/or to adjust the flow rate of water input to the electrolysis device as a function of the total dissolved solids value comprises the processor being configured to:

reducing a preset first duty ratio in unit time through the first PWM controller to control the voltage controller to adjust the power of the electrolysis equipment; and

and reducing a preset second duty ratio in the unit time through the second PWM controller so as to control the flow control valve to regulate the flow rate.

5. The apparatus of claim 1, wherein the apparatus further comprises:

the PH detection device is used for detecting the PH value of the water electrolyzed by the electrolysis equipment;

the processor is further configured to;

reading the pH value in the case that the total dissolved solids value is lower than the second threshold value;

comparing the PH value with a PH threshold value to obtain a PH deviation value;

6. The apparatus of claim 5, wherein the pH offset value is positive when the pH is above the pH threshold and negative when the pH is below the pH threshold; the processor being configured to control the electrolysis apparatus to adjust the power via a PID algorithm based on the PH deviation value comprises the processor being configured to:

7. A dishwasher, comprising a dishwasher body, further comprising a device for a dishwasher as claimed in any one of claims 1 to 6.