Control method for water purifier and water purifier

Abstract

The invention relates to the technical field of water purification equipment, particularly provides a control method for a water purifier and the water purifier, and aims to solve the problem of poor user experience caused by incapability of effectively sterilizing a water purification pipeline of an existing water purifier. Therefore, the water purifier comprises a filter and a sterilization device, the sterilization device comprises a shell and an electrolysis module, the shell is provided with a water inlet and a water outlet, the electrolysis module is arranged to be capable of electrolyzing sterilization substances, and after the sterilization device is started, the control method comprises the following steps that the concentration C of the sterilization substances at the water outlet is obtained in real time; acquiring a preset concentration C0; and selectively adjusting the electrolytic strength of the electrolysis module according to the concentration C of the bactericidal substance and the preset concentration C0. The situation that sterilization cannot be effectively conducted due to the fact that the electrolytic strength of the electrolysis module is too low can be avoided, meanwhile, the situation that scaling in the sterilization device is serious due to the fact that the electrolytic strength of the electrolysis module is too high can be avoided, and the use experience of a user is greatly improved.

Description

Technical Field

[0001] The present invention relates to the technical field of water purification equipment, and specifically provides a control method for a water purifier and a water purifier. Background Art

[0002] Existing ordinary reverse osmosis water purifiers, etc., have bacteria growing in front of the membrane, in pipes, in water tanks, etc. due to the increasing specifications of the reverse osmosis membranes used, the inability of tabletop machines to achieve good flushing logic, the large-scale use of phosphorus-based antiscalants and long-term non-use.

[0003] In the prior art, since the water purifier cannot be effectively sterilized, problems such as bacterial growth and water odor occur, which seriously affects the user experience. Summary of the invention

[0004] The present invention aims to solve the above technical problems to a certain extent, that is, to solve the problem that the existing water purifiers cannot effectively sterilize the water purification pipeline, resulting in poor user experience.

[0005] In a first aspect, the present invention provides a control method for a water purifier, which includes a water purification pipeline, wherein the water purification pipeline includes a filter and a sterilization device arranged in series, wherein the sterilization device includes a shell and an electrolysis module arranged in the shell, wherein the shell has a water inlet and a water outlet, and the electrolysis module is configured to electrolyze a sterilizing substance. After starting the sterilization device, the control method includes the following steps: obtaining the concentration C of the sterilizing substance at the water outlet in real time; obtaining a preset concentration C0; and selectively adjusting the electrolysis intensity of the electrolysis module according to the concentration C of the sterilizing substance and the preset concentration C0.

[0006] In the preferred technical scheme of the control method for the water purifier, the step of "selectively adjusting the electrolysis strength of the electrolysis module according to the concentration of the bactericidal substance" specifically includes: calculating the difference △=C-C0; comparing the difference △ with the first preset value A1 and the second preset value A2 respectively; selectively adjusting the electrolysis strength of the electrolysis module according to the comparison result; wherein A1>0, A2<0.

[0007] In the preferred technical solution of the control method for a water purifier, the step of "selectively adjusting the electrolysis strength of the electrolysis module according to the comparison result" specifically includes: if △>A1, reducing the electrolysis strength of the electrolysis module.

[0008] In the preferred technical solution of the control method for a water purifier, the step of "selectively adjusting the electrolysis strength of the electrolysis module according to the comparison result" specifically includes: if A2≤△≤A1, the electrolysis strength of the electrolysis module is not adjusted.

[0009] In the preferred technical solution of the control method for a water purifier, the step of "selectively adjusting the electrolysis intensity of the electrolysis module according to the comparison result" specifically includes: if △<A2, increasing the electrolysis intensity of the electrolysis module.

[0010] In the preferred technical solution of the above-mentioned control method for a water purifier, the electrolysis module includes a first electrolysis component and a second electrolysis component, the first electrolysis component and / or the second electrolysis component include at least one group of cathode electrodes and anode electrodes arranged in sequence, the electrolysis module also includes a proton exchange membrane, the cathode electrode and the anode electrode are arranged opposite to each other and are respectively located on both sides of the proton exchange membrane, and after starting the sterilization device, the control method also includes: alternatingly operating the first electrolysis component and the second electrolysis component.

[0011] In the preferred technical solution of the above-mentioned control method for a water purifier, before starting the sterilization device, the control method also includes: obtaining the operating time of the water purifier since the last execution of the sterilization mode; judging whether the operating time reaches the set time; and selectively starting the sterilization device based on the judgment result.

[0012] In the preferred technical scheme of the above-mentioned control method for a water purifier, the step of "selectively starting the sterilization device according to the judgment result" specifically includes: if the judgment result is "yes", further obtaining the current time; judging whether the current time is within the set time range; and selectively starting the sterilization device according to the judgment result.

[0013] In the preferred technical solution of the above-mentioned control method for a water purifier, after starting the sterilization device, the control method further includes: obtaining the duration that the concentration C of the sterilization substance is greater than a preset concentration; judging whether the duration exceeds a preset time; and selectively shutting down the sterilization device based on the judgment result.

[0014] In a second aspect, the present invention provides a water purifier, which includes the control method for the water purifier introduced above.

[0015] When adopting the above technical solution, the electrolytic strength of the electrolysis module can be selectively adjusted according to the concentration C of the bactericidal substance in the water purification pipeline and the preset concentration C0. On the one hand, it can avoid the concentration of the bactericidal substance in the water purification pipeline being too low due to the electrolytic strength of the electrolysis module being too low, thereby ensuring the effective sterilization of the water purification pipeline; on the other hand, it can also avoid serious scaling in the sterilization device due to the electrolytic strength of the electrolysis module being too high, and at the same time, it can also avoid wasting energy, greatly improving the user experience.

[0016] Furthermore, compared with the form of directly comparing the concentration C of the bactericidal substance with the preset concentration C0, by first calculating the difference between the concentration C of the bactericidal substance and the preset concentration C0, and then comparing the difference with the preset value, it is possible to avoid misjudgment caused by detection errors in the concentration C of the bactericidal substance, thereby making the adjustment of the electrolysis module more timely and further improving the user experience.

[0017] Furthermore, when △>A1, it means that the concentration of the bactericidal substance exceeds the preset concentration, that is, the concentration of the bactericidal substance in the water is too high. In this case, the electrolytic strength of the electrolytic module needs to be reduced to prevent scaling of the electrolytic module due to excessive electrolytic strength of the electrolytic module. At the same time, it can further reduce energy waste and further enhance the user experience.

[0018] Furthermore, when A2≤△≤A1, it means that the difference between the concentration of the bactericidal substance and the preset concentration is within the preset range, that is, the concentration of the bactericidal substance at this time can just effectively sterilize the water purification waterway. At this time, the electrolysis intensity of the electrolysis module is not adjusted, which can not only ensure the bactericidal effect, but also reasonably utilize energy.

[0019] Furthermore, when △<A2, it means that the concentration of the bactericidal substance is too low. Increasing the electrolytic intensity of the electrolysis module can increase the concentration of the bactericidal substance in the water, thereby avoiding the inability to effectively sterilize the water purification pipeline due to insufficient concentration of the bactericidal substance.

[0020] Furthermore, after starting the sterilization device, by making the first electrolytic component and the second electrolytic component operate alternately, the operating time of the first electrolytic component and the second electrolytic component can be reduced, thereby reducing the heat generated by the first electrolytic component and the second electrolytic component, and then reducing the scaling of the first electrolytic component and the second electrolytic component, thereby extending the service life of the sterilization device and further improving the user experience.

[0021] Furthermore, compared with the form of the user operating the sterilization button on the water purifier to start the sterilization device to sterilize the water purifier, by obtaining the running time of the water purifier since the last execution of the sterilization mode, when the running time reaches the time set by the user, the sterilization device is started to sterilize the water purifier. This can automatically sterilize the water purifier more timely and conveniently, help improve the user's drinking water health, and further enhance the user's experience.

[0022] Furthermore, when the judgment result is "yes", it means that the time since the last time the water purifier executed the sterilization mode is a long time, and the cleanliness of the water purifier is not good at this time. At this time, the current time is further obtained, and it is determined whether the current time is within the set time range. This can avoid sterilizing the water purifier during peak water use and affecting the normal water use of users, thereby further improving the user experience.

[0023] Furthermore, by judging whether the duration for which the concentration of the bactericidal substance is greater than the preset concentration exceeds the preset time, it is possible to judge whether the bactericidal substance in the water can be maintained within the effective bactericidal concentration range for a long time, and then, based on the judgment result, the sterilization device can be selectively shut down in time to terminate the sterilization, which can further reduce energy waste and reduce scaling of the electrolysis module.

[0024] In addition, the water purifier further provided by the present invention on the basis of the above-mentioned technical solution, because it includes the control method for the water purifier introduced above, thus has the beneficial effects of the above-mentioned control method for the water purifier. Compared with the water purifier before the improvement, the water purifier of the present invention has better sterilization effect, lower energy waste, and longer service life of the sterilization device. At the same time, the water quality of the water purifier is better and the user experience is also better. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings, in which:

[0026] Figure 1 It is a connection diagram of the first embodiment of the water purification circuit of the present invention;

[0027] Figure 2 It is a connection diagram of the second embodiment of the water purification circuit of the present invention;

[0028] Figure 3 It is a connection diagram of the third embodiment of the water purification circuit of the present invention;

[0029] Figure 4 It is a connection diagram of a fourth embodiment of the water purification circuit of the present invention;

[0030] Figure 5 is a schematic structural diagram of a first embodiment of a sterilization device of the present invention;

[0031] Figure 6 is a schematic structural diagram of a second embodiment of a sterilization device of the present invention;

[0032] Figure 7 is a flow chart of a control method for a water purifier of the present invention;

[0033] Figure 8 It is a flow chart of an embodiment of a control method for a water purifier of the present invention.

[0034] List of reference numerals:

[0035] 11. water inlet pipe; 12. water inlet solenoid valve; 13. raw water tank; 131. raw water chamber; 132. waste water chamber; 2. pre-treatment filter element; 3. booster pump; 4. sterilization device; 41. shell; 410. electrolysis chamber; 411. water inlet; 412. water outlet; 4201. cathode plate; 4202. anode plate; 4211. first cathode electrode; 4212. first anode electrode; 422. 4221. second cathode electrode; 4222. second anode electrode; 4 23. Proton exchange membrane; 4241. Negative pole; 4242. Positive pole; 43. Water distribution plate; 431. Water distribution hole; 51. Reverse osmosis membrane filter element; 52. Composite filter element; 531. Waste water pipe; 532. Waste water proportional valve; 6. Reflux pipe; 61. Circulation pump; 62. One-way valve; 7. Reversing valve; 71. First interface; 72. Second interface; 73. Third interface; 8. High-pressure switch; 91. Faucet; 92. Pure water tank; 921. Cold tank; 922. Hot tank. DETAILED DESCRIPTION

[0036] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the protection scope of the present invention.

[0037] It should be noted that in the description of the present invention, the terms "upper", "lower", "left", "right", "inner", "outer", "top", "bottom" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings, which are only for the convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0038] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installation", "setting" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0039] Based on the problem mentioned in the background technology that the existing water purifier cannot effectively sterilize the water purification pipeline, resulting in a poor user experience, the present invention provides a water purifier, which includes a shell and a water purification pipeline arranged in the shell, and the shell is provided with a water inlet component and a water outlet component, and the two ends of the water purification pipeline are respectively connected to the water inlet component and the water outlet component.

[0040] Specifically, see Figures 1 to 4 , Figure 1 It is a connection diagram of the first embodiment of the water purification circuit of the present invention; Figure 2 It is a connection diagram of the second embodiment of the water purification circuit of the present invention; Figure 3 It is a connection diagram of the third embodiment of the water purification circuit of the present invention; Figure 4 It is a connection diagram of the fourth embodiment of the water purification waterway of the present invention.

[0041] like Figure 1 and Figure 4 As shown, the water purification pipeline of the present invention includes a filter and a sterilization device 4 arranged in series, the sterilization device 4 includes a shell 41 and an electrolysis module, the shell 41 has an electrolysis chamber 410, and the two ends of the shell 41 are respectively provided with a water inlet 411 and a water outlet 412 connected to the electrolysis chamber 410, the electrolysis module is installed in the electrolysis chamber 410, and the electrolysis module is configured to electrolyze a sterilizing substance, and the sterilizing substance flows out from the water outlet 412 to sterilize the water purification pipeline.

[0042] Through such a setting, the electrolysis module can electrolyze bactericidal substances, oxidize and decompose bacteria, organic matter, etc. in the water flow, thereby sterilizing the pipes of the water purifier, avoiding the impact of bacteria growth on the user's drinking water health, and ensuring the user's drinking water safety.

[0043] It should be noted that, in actual applications, those skilled in the art may configure the filter to be only a reverse osmosis membrane filter element 51, or, may configure the filter to be a pretreatment filter element 2 and a reverse osmosis membrane filter element 51, wherein the water outlet end of the pretreatment filter element 2 is connected to the water inlet end of the reverse osmosis membrane filter element 51, or, may configure the filter to be a pretreatment filter element 2, a reverse osmosis membrane filter element 51 and a post-filter element, wherein the water outlet end of the pretreatment filter element 2 is connected to the water inlet end of the reverse osmosis membrane filter element 51, and the water inlet end of the post-filter element is connected to the clean water end of the reverse osmosis membrane filter element 51, and so on. Such adjustments and changes to the specific setting type of the filter do not deviate from the principle and scope of the present invention, and should be included in the protection scope of the present invention.

[0044] It should also be noted that, in actual applications, those skilled in the art may configure the water inlet component to be a water inlet pipe 11 and a water inlet solenoid valve 12 disposed on the water inlet pipe 11, or may configure the water inlet pipe 11 to be a raw water tank 13, etc. Such adjustments and changes to the specific setting type of the water inlet component do not deviate from the principle and scope of the present invention, and should be included in the protection scope of the present invention.

[0045] It should also be noted that, in actual applications, those skilled in the art may set the water outlet component to be a faucet 91 or a water outlet, or may set the water outlet component to be a clean water tank, etc. Such adjustments and changes to the specific setting type of the water outlet component do not deviate from the principle and scope of the present invention, and should be included in the protection scope of the present invention.

[0046] The specific embodiments of the water purification waterway of the water purifier of the present invention are described in detail below in combination with the following four embodiments.

[0047] Embodiment 1:

[0048] like Figure 1 As shown, the water purification circuit of the present invention includes a water inlet pipe 11, a pretreatment filter element 2, a booster pump 3, a sterilization device 4, a reverse osmosis membrane filter element 51 and a faucet 91 which are connected in sequence. A water inlet solenoid valve 12 is provided on the water inlet pipe 11. One end of the water inlet pipe 11 is connected to the water inlet port of the water purifier, and the other end of the water inlet pipe 11 is connected to the pretreatment filter element 2. The water purification circuit also includes a wastewater pipe 531 and a wastewater solenoid valve 532 provided on the wastewater pipe 531, wherein one end of the wastewater pipe 531 is connected to the wastewater port of the reverse osmosis membrane filter element 51, and the other end of the wastewater pipe 531 is connected to the wastewater port of the water purifier.

[0049] Through such an arrangement, the sterilization device 4 is arranged between the pretreatment filter element 2 and the reverse osmosis membrane filter element 51. On the one hand, the water filtered by the pretreatment filter element 2 can flow into the sterilization device 4 and the reverse osmosis membrane filter element 51, thereby preventing impurities in the water from clogging the sterilization device 4 and the reverse osmosis membrane filter element 51, thereby improving the service life of the sterilization device 4 and the reverse osmosis membrane filter element 51; on the other hand, during sterilization, the sterilization substance output by the sterilization device 4 can enter the reverse osmosis membrane filter element 51, thereby sterilizing the reverse osmosis membrane filter element 51, avoiding clogging caused by bacteria breeding in the reverse osmosis membrane filter element 51, and further improving the user experience.

[0050] It should be noted that, in practical applications, the sterilization device 4 is not limited to being disposed between the booster pump 3 and the reverse osmosis membrane filter element 51. For example, the sterilization device 4 can also be disposed at the upstream end of the booster pump 3, and so on. Such adjustments and changes to the specific setting position of the sterilization device 4 do not deviate from the principle and scope of the present invention, and should be included in the protection scope of the present invention.

[0051] Of course, preferably, the sterilization device 4 is arranged between the booster pump 3 and the reverse osmosis membrane filter element 51 .

[0052] Preferably, if Figure 1As shown, the water purification circuit of the present invention also includes a high-pressure switch 8, which is arranged on the flow path between the water purification end of the reverse osmosis membrane filter element 51 and the faucet 91, and the high-pressure switch 8 is communicatively connected with the booster pump 3 and the water inlet solenoid valve 12.

[0053] By setting the high-pressure switch 8, when the user draws water, the high-pressure switch 8 detects that the pressure in the pipeline decreases and closes, and transmits this signal to the booster pump 3 and the water inlet solenoid valve 12, the booster pump 3 and the water inlet solenoid valve 12 start and begin to make water. At the end of water drawing, the high-pressure switch 8 detects that the pressure in the pipeline increases and disconnects, and transmits this signal to the booster pump 3, the booster pump 3 stops working, and the water inlet solenoid valve 12 is closed, that is, the water purifier stops making water, thereby realizing intelligent water drawing of the water purifier and further improving the user experience.

[0054] Preferably, the water purifier further comprises an electric control board, which is communicatively connected with the water inlet solenoid valve 12 , the wastewater proportional valve 532 , the booster pump 3 , and the high-pressure switch 8 .

[0055] When the water purifier is in the water making mode, the faucet 91 is opened, the water inlet solenoid valve 12 and the wastewater proportional valve 532 are opened, the sterilization device 4 does not work, and the water entering the water inlet pipe 11 through the water inlet port enters the pretreatment filter element 2. The water filtered by the pretreatment filter element 2 is then pumped into the sterilization device 4 and the reverse osmosis membrane filter element 51 in sequence through the booster pump 3. The pure water filtered by the reverse osmosis membrane filter element 51 flows out of the faucet 91 through the high-pressure switch 8, and the wastewater generated by the filtration flows out of the wastewater pipe 531 through the wastewater proportional valve 532.

[0056] When the water purifier is in the sterilization mode, the faucet 91 is closed, the water inlet solenoid valve 12 and the booster pump 3 are started, and then the wastewater proportional valve 532 and the sterilization device 4 are started. The electrolysis module electrolyzes the sterilizing substance, and the water containing the sterilizing substance flows into the reverse osmosis membrane filter element 51, and then flows out through the wastewater proportional valve 532 to achieve sterilization. After the sterilization is completed, the wastewater proportional valve 532, the water inlet solenoid valve 12 and the sterilization device 4 are closed.

[0057] Embodiment 2:

[0058] like Figure 2As shown, the water purification circuit of the present invention includes a water inlet pipe 11, a sterilizing device 4, a reversing valve 7, a pretreatment filter element 2, a booster pump 3, a reverse osmosis membrane filter element 51 and a faucet 91 which are connected in sequence. A water inlet solenoid valve 12 is provided on the water inlet pipe 11. One end of the water inlet pipe 11 is connected to the water inlet port of the water purifier, and the other end of the water inlet pipe 11 is connected to the pretreatment filter element 2. The water purification circuit also includes a wastewater pipe 531 and a wastewater solenoid valve 532 provided on the wastewater pipe 531, wherein one end of the wastewater pipe 531 is connected to the wastewater port of the reverse osmosis membrane filter element 51, and the other end of the wastewater pipe 531 is connected to the wastewater port of the water purifier. The reversing valve 7 includes a first interface 71, a second interface 72 and a third interface 73. The first interface 71 is connected to the sterilizing device 4, the second interface 72 is connected to the water inlet end of the pretreatment filter element 2, and the third interface 73 is connected to the water purification end of the reverse osmosis membrane filter element 51 through a reflux pipe.

[0059] Preferably, if Figure 1 As shown, the water purification circuit of the present invention also includes a high-pressure switch 8, which is arranged on the flow path between the water purification end of the reverse osmosis membrane filter element 51 and the faucet 91, and the high-pressure switch 8 is communicatively connected with the booster pump 3 and the water inlet solenoid valve 12.

[0060] By setting the high-pressure switch 8, when the user draws water, the high-pressure switch 8 detects that the pressure in the pipeline decreases and closes, and transmits this signal to the booster pump 3 and the water inlet solenoid valve 12, the booster pump 3 and the water inlet solenoid valve 12 start and begin to make water. At the end of water drawing, the high-pressure switch 8 detects that the pressure in the pipeline increases and disconnects, and transmits this signal to the booster pump 3, the booster pump 3 stops working, and the water inlet solenoid valve 12 is closed, that is, the water purifier stops making water, thereby realizing intelligent water drawing of the water purifier and further improving the user experience.

[0061] When the water purifier is in the water making mode, the faucet 91 is opened, the water inlet solenoid valve 12 and the wastewater proportional valve 532 are opened, the sterilization device 4 does not work, and the water entering the water inlet pipe 11 through the water inlet port enters the sterilization device 4 and the pretreatment filter element 2 in turn. The water filtered by the pretreatment filter element 2 is then pumped into the reverse osmosis membrane filter element 51 in turn through the booster pump 3. The pure water filtered by the reverse osmosis membrane filter element 51 flows out of the faucet 91 through the high-pressure switch 8, and the wastewater generated by the filtration flows out of the wastewater pipe 531 through the wastewater proportional valve 532.

[0062] When the water purifier is in the sterilization mode, the faucet 91 is closed, the high-pressure switch 8 is activated, the wastewater proportional valve 532 and the sterilization device 4 are opened with a delay, the first interface 71 and the second interface 72 of the reversing valve 7 are connected, the first set time is flushed, the reversing valve 7 is switched to the first interface 71 connected to the third interface 73, the water inlet solenoid valve 12, the wastewater proportional valve 532 and the sterilization device 4 are closed, the booster pump 3 is turned on, and the booster pump 3 transports the residual water in the water path from the water inlet end of the reverse osmosis membrane filter element 51 to the pretreatment filter element 2 in turn, and then transports it to the clean water end of the reverse osmosis membrane filter element 51 through the reflux pipe, forming a cycle, flushing and sterilizing the pipeline, flushing for the second set time, and then switching the reversing valve 7 to the first interface 71 connected to the second interface 72.

[0063] Embodiment three:

[0064] like Figure 3 As shown, the water purification circuit of the present invention includes a raw water tank 13, a pretreatment filter element 2, a booster pump 3, a composite filter element 52, a sterilization device 4 and a pure water tank 92 which are connected in sequence, wherein the composite filter element 52 is a composite filter element of a reverse osmosis membrane filter element and a post-filter element, and a raw water chamber 131 and a waste water chamber 132 are provided in the raw water tank 13, and the raw water chamber 131 of the raw water tank 13 is connected to the pretreatment filter element 2, and the water purification circuit also includes a waste water pipe 531 and a waste water solenoid valve 532 arranged on the waste water pipe 531, wherein one end of the waste water pipe 531 is connected to the waste water port of the composite filter element (the waste water port of the reverse osmosis membrane filter element), and the other end of the waste water pipe 531 is connected to the waste water chamber 132 of the raw water tank 13.

[0065] like Figure 3 As shown, the clean water circuit also includes a return pipe 6 and a circulation pump 61 arranged on the return pipe 6. One end of the return pipe 6 is connected to the pure water tank 92, and the other end of the return pipe 6 is connected to the raw water chamber 131. The circulation pump 61 is used to pump the water in the pure water tank 92 back into the raw water chamber 131.

[0066] Preferably, a water level detection component (not shown in the figure) is also provided in the pure water tank 92 , and the water level detection component is used to detect the water level in the pure water tank 92 .

[0067] Preferably, if Figure 3 As shown, the water purification circuit of the present invention further includes a cold tank 921 and a hot tank 922 , and both the cold tank 921 and the hot tank 922 are connected to the pure water tank 92 .

[0068] When the water purifier is in the water production mode, the sterilization device 4 does not work. The tap water in the raw water chamber 131 is filtered by the pretreatment filter element 2 and then pumped into the reverse osmosis membrane filter element of the composite filter element 52 under the action of the booster pump 3. The pure water after filtration by the reverse osmosis membrane filter element passes through the sterilization device 4 and enters the pure water tank 92. The waste water generated by the filtration flows out from the waste water pipe 531 through the waste water proportional valve 532. When the water level detection component detects that the water level in the pure water tank 92 reaches the first preset water level, the booster pump 3 is turned off and the water production ends.

[0069] When the water purifier is in the sterilization mode, the water level in the pure water tank 92 is first detected by the water level detection component. If the water level in the pure water tank 92 is higher than the second preset water level (where the second preset water level is lower than the first preset water level), the circulation pump 61 is started to drain the water in the pure water tank 92 into the raw water chamber 131 of the raw water tank 13 until the water level in the pure water tank 92 is lower than the second preset water level. When the water level detection component detects that the water level in the pure water tank 92 is lower than the second preset water level, the sterilization device 4 and the booster pump 3 are started, and the water in the raw water tank chamber is discharged. After being filtered by the pre-treatment filter element, the water is transported to the composite filter element 52 through the booster pump 3, and then released by the sterilization device 4. The sterilization substance is then flowed into the pure water tank 92. When the water level detection component detects that the water level in the pure water tank 92 reaches the first preset water level, the booster pump 3 and the sterilization device 4 are turned off, and the standby time is set. Then, the circulation pump 61 is started to pump the water in the pure water tank 92 back to the raw water tank 13. The standby time is set, and then the water purifier is switched to the water making mode. When the water level in the pure water tank 92 reaches the first preset water level, the water purifier is stopped.

[0070] Embodiment 4:

[0071] like Figure 4 As shown, the water purification circuit of the present invention includes a water inlet component, a booster pump 3, a pretreatment filter element 2, a composite filter element 52, a sterilization device 4 and a pure water tank 92 which are connected in sequence, wherein the composite filter element 52 is a composite filter element of a reverse osmosis membrane filter element and a post-filter element, and the water purification circuit also includes a wastewater pipe 531 and a wastewater solenoid valve 532 arranged on the wastewater pipe 531, one end of the wastewater pipe 531 is connected to the wastewater port of the reverse osmosis membrane filter element, and the other end of the wastewater pipe 531 is connected to the wastewater port of the water purifier.

[0072] The clean water circuit of this embodiment also includes a return pipe 6 and a circulation pump 61 and a one-way valve 62 arranged on the return pipe 6. One end of the return pipe 6 is connected to the water inlet end of the pretreatment filter element 2, and the other end of the return pipe 6 is connected to the pure water tank 92. The circulation pump 61 can pump water in the pure water tank 92 into the pretreatment filter element 2, and the one-way valve 62 can prevent the booster pump 3 from transporting water into the return pipe 6.

[0073] Preferably, a water level detection component (not shown in the figure) is also provided in the pure water tank 92 of this embodiment, and the water level detection component is used to detect the water level in the pure water tank 92.

[0074] Preferably, the water purification circuit of this embodiment further includes a cold tank 921 and a hot tank 922 , and both the cold tank 921 and the hot tank 922 are connected to the pure water tank 92 .

[0075] When the water purifier is in water production mode, the sterilization device 4 does not work, and the booster pump 3 transports the tap water in the water inlet pipe 11 to the pretreatment filter element 2 through the water inlet solenoid valve 12. The water filtered by the pretreatment filter element 2 is transported to the composite filter element 52 of the reverse osmosis membrane filter element and the post-filter element. The pure water filtered by the reverse osmosis membrane filter element 51 is further improved by the post-filter element, and then flows into the pure water tank 92. The waste water generated by the filtration is discharged from the waste water pipe 531 through the waste water proportional valve 532. When the water level detection component in the pure water tank 92 detects that the water level in the pure water tank 92 reaches the first preset water level, the booster pump 3 and the water inlet solenoid valve 12 are closed to stop water production.

[0076] When the water purifier is in the sterilization mode, the water level height in the pure water tank 92 is first detected by the water level detection component. If the water level height in the pure water tank 92 is higher than the second preset water level, the water is manually or automatically drained to the second preset water level. When the water level detection component detects that the water level in the pure water tank 92 is lower than the second preset water level, the water inlet solenoid valve 12, the booster pump 3 and the sterilization device 4 are started until the water level in the pure water tank 92 reaches the first preset water level. The water inlet solenoid valve 12, the booster pump 3 and the sterilization device 4 are closed and left to stand for a third set time. Then the circulation pump 61 is started to transport the water in the pure water tank 92 to the pretreatment filter element 2 and the composite filter element 52 in turn, and finally flow out from the waste water pipe 531 through the waste water proportional valve 532. When the water level detection component detects that the water level in the pure water tank 92 reaches the second preset water level, the water making mode is started until the water level in the pure water tank 92 reaches the first preset water level.

[0077] It should be noted that although the present invention introduces the water purification waterway of the present invention with the above four embodiments, this is not restrictive. The control method of the present invention is also applicable to any other possible water purification waterway, and so on. Such adjustments and changes to the specific setting form of the water purification waterway do not deviate from the principle and scope of the present invention, and should be included in the protection scope of the present invention.

[0078] It should also be noted that the present invention does not impose any restrictions on the specific structural form of the electrolysis module. As long as it can be installed in the shell 41 and can electrolyze the bactericidal substance when powered on and allow the bactericidal substance to flow out from the water outlet 412, such adjustments and changes to the specific structural form of the electrolysis module do not deviate from the principle and scope of the present invention and should be included in the protection scope of the present invention.

[0079] Next Read Figure 5 and Figure 6 , Figure 5 is a schematic structural diagram of a first embodiment of a sterilization device of the present invention, Figure 6 It is a structural schematic diagram of the second embodiment of the sterilization device of the present invention.

[0080] Combine the following Figure 5 and Figure 6 The specific embodiments of the electrolysis module of the present invention are described in detail.

[0081] Embodiment 1:

[0082] like Figure 5 As shown, the electrolysis module of the present invention includes a cathode plate 4201, a proton exchange membrane 423 and an anode plate 4202 which are arranged in sequence along the water flow direction, wherein the edge of the cathode plate 4201 is connected to the inner wall of the shell 41 through a first elastic member, the edge of the anode plate 4202 is connected to the inner wall of the shell 41 through a second elastic member, a first water hole is arranged on the cathode electrode, a second water hole is arranged on the proton exchange membrane 423, and a third water hole is arranged on the anode electrode (not shown in the figure).

[0083] It should be noted that, in actual applications, those skilled in the art may set the anode plate 4202 to a diamond electrode, or may set the anode plate 4202 to a stainless steel electrode, etc. Such adjustments and changes to the specific setting type of the anode plate 4202 do not deviate from the principle and scope of the present invention, and should be included in the protection scope of the present invention.

[0084] Preferably, the anode plate 4202 of the present invention is a diamond electrode.

[0085] Preferably, if Figure 5 As shown, an elastic member is also provided in the shell 41, one end of the elastic member abuts against the cathode plate 4201, and the other end of the elastic member abuts against the inner wall of the shell 41. The elastic member can keep the cathode plate 4201 in a micro-vibration state at all times, thereby reducing the deposition of scale on the cathode plate 4201.

[0086] Preferably, if Figure 5 As shown, a water diversion plate 43 is also provided in the shell 41, and a plurality of water diversion holes 431 are provided on the water diversion plate 43. Water entering the shell 41 from the water inlet 411 is diverted into the plurality of water diversion holes 431 under the action of the water diversion plate 43, thereby improving the electrolysis efficiency of the electrolysis module.

[0087] Embodiment 2:

[0088] like Figure 6As shown, the electrolysis module of the present invention includes a first electrolysis component and a second electrolysis component, the first electrolysis component includes a first cathode electrode 4211 and a first anode electrode 4212 arranged in sequence, the second electrolysis component includes a second cathode electrode 4221 and a second anode electrode 4222 arranged in sequence, the electrolysis module also includes a proton exchange membrane 423, the first cathode electrode 4211 and the first anode electrode 4212 are arranged opposite to each other and are respectively located on both sides of the proton exchange membrane 423, the second cathode electrode 4221 and the second anode electrode 4222 are arranged opposite to each other and are respectively located on both sides of the proton exchange membrane 423.

[0089] Among them, the first cathode electrode 4211 and the second cathode electrode 4221 can be selectively electrically connected to the cathode lead, the first anode electrode 4212 and the second cathode electrode 4221 can be selectively electrically connected to the anode lead, the cathode lead is electrically connected to the negative electrode column 4241, and the anode electrode is electrically connected to the positive electrode column 4242.

[0090] It should be noted that, in actual applications, those skilled in the art may set the number of the first cathode electrode 4211 and the first anode electrode 4212 to one, or may set the number of the first cathode electrode 4211 and the first anode electrode 4212 to two, or may set the number of the first cathode electrode 4211 and the first anode electrode 4212 to multiple, and so on. Such adjustments and changes to the specific setting numbers of the first cathode electrode 4211 and the first anode electrode 4212 do not deviate from the principle and scope of the present invention, and should be included in the protection scope of the present invention.

[0091] Preferably, if Figure 6 As shown, the number of the first cathode electrodes 4211 and the number of the first anode electrodes 4212 are both two.

[0092] It should be noted that, in actual applications, those skilled in the art may set the number of the second cathode electrode 4221 and the second anode electrode 4222 to one, or may set the number of the second cathode electrode 4221 and the second anode electrode 4222 to two, or may set the number of the second cathode electrode 4221 and the second anode electrode 4222 to multiple, and so on. Such adjustments and changes to the specific setting numbers of the second cathode electrode 4221 and the second anode electrode 4222 do not deviate from the principle and scope of the present invention, and should be included in the protection scope of the present invention.

[0093] Preferably, if Figure 6 As shown, the number of the second cathode electrodes 4221 and the number of the second anode electrodes 4222 are both two.

[0094] By such a configuration, the number of the first cathode electrode 4211 , the first anode electrode 4212 , the second cathode electrode 4221 , and the second anode electrode 4222 are respectively set to two, so as to avoid the electrolysis module from not being able to work properly due to a failure of a certain electrode.

[0095] It should be noted that the structure of the shell 41 of Example 2 and the connection structure between the electrolysis module and the shell 41 are the same as those of Example 1, and will not be repeated here.

[0096] It should also be noted that although the present application introduces the specific setting form of the electrolysis module based on the above two embodiments, this is not restrictive. As long as the bactericidal substance can be electrolyzed and the water purification waterway can be sterilized, etc., such adjustments and changes to the specific structural form of the electrolysis module do not deviate from the principle and scope of the present invention, and should be included in the protection scope of the present invention.

[0097] The present invention will now introduce the control method of the present invention using the structural form of the electrolysis module introduced in Example 2.

[0098] The water purifier of the present invention includes a water purification pipeline, which includes a filter and a sterilization device 4 arranged in series. The sterilization device 4 includes a shell 41 and an electrolysis module arranged in the shell 41. The electrolysis module is configured to electrolyze sterilizing substances to sterilize the water purification pipeline.

[0099] Next Read Figure 7 , Figure 7 It is a flow chart of the control method for a water purifier of the present invention.

[0100] like Figure 7 As shown, after the sterilization device 4 is started, the control method of the present invention comprises the following steps:

[0101] S100: Acquire the concentration C of the bactericidal substance in the housing 41 in real time;

[0102] S200: Obtaining a preset concentration C0;

[0103] S300: Selectively adjusting the electrolysis intensity of the electrolysis module according to the concentration C of the bactericidal substance and the preset concentration C0.

[0104] Through such a setting, the electrolytic strength of the electrolysis module can be selectively adjusted according to the concentration C of the bactericidal substance in the water purification pipeline and the preset concentration C0. On the one hand, it can avoid the concentration of the bactericidal substance in the water purification pipeline being too low due to the electrolytic strength of the electrolysis module being too low, thereby ensuring the effective sterilization of the water purification pipeline; on the other hand, it can also avoid serious scaling in the sterilization device 4 due to the electrolytic strength of the electrolysis module being too high, and at the same time, it can also avoid wasting energy, greatly improving the user experience.

[0105] It should be noted that the bactericidal substances electrolyzed by the electrolysis module are substances with bactericidal effects such as ozone, hydroxyl and hydroxyl groups. In actual applications, technical personnel in this field can set the bactericidal substance to ozone according to actual needs, and adjust the electrolysis strength of the electrolysis module according to the concentration of ozone and the preset concentration, or, the bactericidal substance can be set to hydroxyl and hydroxyl groups, and the electrolysis strength of the electrolysis module can be adjusted according to the concentration of hydroxyl and hydroxyl groups and the corresponding preset concentrations, or, the bactericidal substance can be set to ozone, hydroxyl and hydroxyl groups, and the electrolysis strength of the electrolysis module can be adjusted according to the concentration of ozone, hydroxyl and hydroxyl groups and the corresponding preset concentrations, and so on. Such adjustments and changes to the specific setting types of bactericidal substances do not deviate from the principles and scope of the present invention, and should be included in the protection scope of the present invention.

[0106] Preferably, the sterilizing substance is ozone, that is, the electrolytic intensity of the electrolysis module is selectively adjusted according to the concentration of ozone and the preset concentration of ozone.

[0107] It should be noted that, in actual applications, a person skilled in the art may obtain the concentration of the bactericidal substance at the water outlet 412 once at a set time interval to achieve real-time acquisition of the concentration of the bactericidal substance at the water outlet 412, or may continuously obtain the concentration of the bactericidal substance at the water outlet 412 to achieve real-time acquisition of the concentration of the bactericidal substance at the water outlet 412, and so on. Such adjustments and changes to the specific acquisition method for real-time acquisition of the concentration of the bactericidal substance at the water outlet 412 do not deviate from the principle and scope of the present invention, and should be included in the protection scope of the present invention.

[0108] Preferably, the concentration of the bactericidal substance at the water outlet 412 is acquired at set time intervals. For example, the concentration of the bactericidal substance at the water outlet 412 is acquired at set time intervals.

[0109] It should be noted that, in actual applications, technical personnel in this field can directly take the water to be tested and test the concentration of the bactericidal substance in the water, or, a concentration detection component can be set on the water purification pipeline to obtain the concentration of the bactericidal substance through the numerical value displayed by the concentration detection component, etc. Such adjustments and changes to the specific test method for the concentration of the bactericidal substance do not deviate from the principle and scope of the present invention, and should be included in the protection scope of the present invention.

[0110] Preferably, the water purification pipeline of the present invention further comprises a concentration detection component (not shown in the figure), and the concentration of the bactericidal substance is obtained through the value displayed by the concentration detection component.

[0111] It should be noted that, in practical applications, those skilled in the art may configure the concentration detection component as a spectrophotometer, or may configure the concentration detection component as any other possible form, etc. Such adjustments and changes to the specific setting type of the concentration detection component do not deviate from the principle and scope of the present invention, and should be included in the protection scope of the present invention.

[0112] Preferably, the concentration detection member of the present invention is a spectrophotometer.

[0113] It should be noted that, in actual applications, those skilled in the art can obtain the preset concentration through the numerical value entered by the user on the control panel of the water purifier, or, can obtain the preset concentration through the numerical value entered by the user on a mobile device that communicates with the water purifier, or, can directly implant the preset concentration into the controller of the water purifier when the water purifier leaves the factory, etc. Such adjustments and changes to the specific method of obtaining the preset concentration do not deviate from the principle and scope of the present invention, and should be included in the protection scope of the present invention.

[0114] Preferably, the preset concentration is obtained by a numerical value input by a user on a control panel of the water purifier.

[0115] Through such a setting, the specific value of the preset concentration can be adjusted according to the local water quality, so that the concentration range of the bactericidal substance can be adjusted according to the water quality conditions. On the one hand, it can avoid the concentration of the bactericidal substance being too low and resulting in insufficient sterilization. On the other hand, it can avoid the concentration of the bactericidal substance being too high and resulting in energy waste, and at the same time, it can also reduce scaling of the sterilization device 4.

[0116] It should be noted that the concentrations of the above bactericidal substances are all measured under the conditions of a set water flow rate.

[0117] It should also be noted that, in actual applications, those skilled in the art may directly compare the concentration C of the bactericidal substance with the preset concentration C0, and selectively adjust the electrolysis strength of the electrolysis module based on the comparison result, or first calculate the difference between the concentration C of the bactericidal substance and the preset concentration C0, and then compare the difference with the preset value, and selectively adjust the electrolysis strength of the electrolysis module based on the comparison result, or first calculate the ratio between the concentration C of the bactericidal substance and the preset concentration C0, and then compare the ratio with the preset value, and selectively adjust the electrolysis strength of the electrolysis module based on the comparison result, and so on. Such flexible adjustments and changes do not deviate from the principles and scope of the present invention, and should be included in the protection scope of the present invention.

[0118] Next Read Figure 8 , Figure 8 It is a flow chart of an embodiment of a method for controlling a user water purifier of the present invention.

[0119] Preferably, if Figure 8 As shown, the step of "selectively adjusting the electrolysis intensity of the electrolysis module according to the concentration C of the bactericidal substance and the preset concentration C0" specifically includes:

[0120] S310: Calculate the difference △=C-C0;

[0121] S320: Compare the difference △ with the first preset value A1 and the second preset value A2 respectively;

[0122] S330: selectively adjusting the electrolysis intensity of the electrolysis module according to the comparison result;

[0123] Among them, A1>0, A2<0.

[0124] Through such a setting, compared with directly comparing the concentration C of the bactericidal substance with the preset concentration C0, by first calculating the difference between the concentration C of the bactericidal substance and the preset concentration C0, and then comparing the difference with the preset value, it is possible to avoid misjudgment caused by detection errors in the concentration C of the bactericidal substance, thereby making the adjustment of the electrolysis module more timely and further improving the user experience.

[0125] Preferably, if Figure 8 As shown, the step of "selectively adjusting the electrolysis intensity of the electrolysis module according to the comparison result" specifically includes:

[0126] S331: If △>A1, the electrolysis intensity of the electrolysis module is reduced.

[0127] Through such a setting, when △>A1, it means that the concentration of the bactericidal substance exceeds the preset concentration, that is, the concentration of the bactericidal substance in the water is too high. In this case, the electrolytic strength of the electrolytic module needs to be reduced to prevent scaling of the electrolytic module due to excessive electrolytic strength of the electrolytic module. At the same time, it can further reduce energy waste and further enhance the user experience.

[0128] Preferably, if Figure 8 As shown, the step of "selectively adjusting the electrolysis intensity of the electrolysis module according to the comparison result" specifically includes:

[0129] S332: If A2≤△≤A1, the electrolysis intensity of the electrolysis module is not adjusted.

[0130] Through such a setting, when A2≤△≤A1, it means that the difference between the concentration of the bactericidal substance and the preset concentration is within the preset range, that is to say, the concentration of the bactericidal substance at this time is just enough to effectively sterilize the water purification waterway. At this time, the electrolysis intensity of the electrolysis module is not adjusted, which can not only ensure the bactericidal effect, but also reasonably utilize energy.

[0131] Preferably, if Figure 8 As shown, the step of "selectively adjusting the electrolysis intensity of the electrolysis module according to the comparison result" specifically includes:

[0132] S333: If △<A2, the electrolysis intensity of the electrolysis module is increased.

[0133] Through such a setting, when △<A2, it means that the concentration of the bactericidal substance is too low. Increasing the electrolytic intensity of the electrolysis module can increase the concentration of the bactericidal substance in the water, thereby avoiding the inability to effectively sterilize the water purification pipeline due to insufficient concentration of the bactericidal substance.

[0134] It should be noted that, in actual applications, those skilled in the art may adjust the electrolysis strength of the electrolysis module by adjusting the current of the electrolysis module, or may adjust the electrolysis strength of the electrolysis module by adjusting the voltage of the electrolysis module, or may simultaneously adjust the current and voltage of the electrolysis module to adjust the electrolysis strength of the electrolysis module, and so on. Such adjustments and changes to the specific adjustment methods of the electrolysis strength do not deviate from the principles and scope of the present invention, and should be included in the protection scope of the present invention.

[0135] Preferably, the step of "adjusting the electrolysis intensity of the electrolysis module" specifically includes:

[0136] The current and voltage of the electrolysis module are adjusted to adjust the electrolysis intensity.

[0137] With such a setting, since the resistance changes during the electrolysis process, the electrolysis strength of the electrolysis module cannot be quickly adjusted to the required value by only adjusting the current or only adjusting the voltage. By simultaneously adjusting the current and voltage of the electrolysis module (that is, by adjusting the power of the electrolysis module), rapid adjustment of the electrolysis strength can be achieved.

[0138] It should be noted that, in actual applications, the user can operate the sterilization button on the water purifier to start the sterilization device 4 to sterilize the water purifier, or, the running time of the water purifier since the last execution of the sterilization mode can be obtained. When the running time reaches the set time, the sterilization device 4 is started to sterilize the water purifier, etc. Such flexible adjustments and changes do not deviate from the principles and scope of the present invention, and should be included in the protection scope of the present invention.

[0139] Preferably, before starting the sterilization device 4, the control method of the present invention further includes:

[0140] Get the running time of the water purifier since the last time it executed the sterilization mode;

[0141] Determine whether the running time reaches the set time;

[0142] According to the judgment result, the sterilization device 4 is selectively started.

[0143] Through such a setting, compared with the form in which the user operates the sterilization button on the water purifier to start the sterilization device 4 to sterilize the water purifier, by obtaining the running time of the water purifier since the last execution of the sterilization mode, when the running time reaches the time set by the user, the sterilization device 4 is started to sterilize the water purifier. This can automatically sterilize the water purifier more timely and conveniently, help improve the user's drinking water health, and further enhance the user's experience.

[0144] Preferably, the step of "selectively starting the sterilization device 4 according to the judgment result" specifically includes:

[0145] If the judgment result is "No", the sterilization device 4 is not started.

[0146] Through such an arrangement, when the judgment result is "no", it means that the time since the last time the water purifier executed the sterilization mode is relatively short, and the cleanliness level of the water purifier is also relatively high at this time, and there is no need to start the sterilization device 4.

[0147] Preferably, the step of "selectively starting the sterilization device 4 according to the judgment result" specifically includes:

[0148] If the judgment result is "yes", the current time is further obtained;

[0149] Determine whether the current time is within the set time range;

[0150] According to the judgment result, the sterilization device 4 is selectively started.

[0151] Through such a setting, when the judgment result is "yes", it means that the time since the last time the water purifier executed the sterilization mode is a long time, and the cleanliness of the water purifier is not good at this time. At this time, further obtain the current time, and judge whether the current time is within the set time range. This can avoid sterilizing the water purifier during peak water use and affecting the normal water use of users, thereby further improving the user experience.

[0152] Preferably, the step of "selectively starting the sterilization device 4 according to the judgment result" specifically includes:

[0153] If the judgment result is "No", the sterilization device 4 is started.

[0154] If the judgment result is "yes", the sterilization device 4 is not started.

[0155] Through such a setting, when the judgment result is "no", it means that the current time is not within the set time range, that is, the current time is not the peak water usage period. At this time, starting the sterilization device 4 can sterilize the water purifier in time; when the judgment result is "yes", it means that the current time is within the set time range, that is, the current time is the peak water usage period. At this time, not starting the sterilization device 4 can avoid sterilization during the peak water usage period and affecting the user's normal water use, thereby further improving the user experience.

[0156] It should be noted that, in practical applications, those skilled in the art can determine the specific value of the set time length based on experience or experiments.

[0157] Exemplarily, the duration is set to 10 days.

[0158] It should be noted that, in actual applications, those skilled in the art may configure the electrolysis module to be only one electrolysis component, or may configure the electrolysis module to be two electrolysis components, or may configure the electrolysis module to be multiple electrolysis components, and so on. Such adjustments and changes to the specific setting types of the electrolysis modules do not deviate from the principles and scope of the present invention, and should be included in the protection scope of the present invention.

[0159] Preferably, the electrolysis module of the present invention includes a first electrolysis component and a second electrolysis component, the first electrolysis component and the second electrolysis component include at least one group of cathode electrodes and anode electrodes arranged in sequence, the electrolysis module also includes a proton exchange membrane 423, the cathode electrode and the anode electrode are arranged oppositely and are respectively located on both sides of the proton exchange membrane 423, after starting the sterilization device 4, the control method of the present invention also includes:

[0160] The first electrolysis assembly and the second electrolysis assembly are operated alternately.

[0161] Through such a setting, after starting the sterilization device 4, by making the first electrolytic component and the second electrolytic component operate alternately, the operating time of the first electrolytic component and the second electrolytic component can be reduced, thereby reducing the heat generation of the first electrolytic component and the second electrolytic component, and then reducing the scaling of the first electrolytic component and the second electrolytic component, thereby extending the service life of the sterilization device 4 and further improving the user experience.

[0162] It should be noted that in actual applications, the first electrolysis component can be started first, and the first electrolysis component can be run for a first preset time, and then the first electrolysis component can be turned off, and the second electrolysis component can be started, and the second electrolysis component can be run for a second preset time, and so on, alternating the operation of the first electrolysis component and the second electrolysis component. Alternatively, the second electrolysis component can be started first, and the second electrolysis component can be run for a second preset time, and then the second electrolysis component can be turned off, and the first electrolysis component can be started, and the first electrolysis component can be run for a first preset time, and so on, alternating the operation of the first electrolysis component and the second electrolysis component, and so on. Such adjustments and changes to the specific operating mode of alternating the first electrolysis component and the second electrolysis component do not deviate from the principle and scope of the present invention, and should be included in the protection scope of the present invention.

[0163] Preferably, the step of "alternatingly operating the first electrolysis assembly and the second electrolysis assembly" specifically includes:

[0164] Starting the first electrolysis component and allowing the first electrolysis component to operate for a first preset time period;

[0165] The first electrolysis component is turned off, the second electrolysis component is turned on, and the second electrolysis component is operated for a second preset time period.

[0166] It should also be noted that, in actual applications, the first preset duration can be set to be equal to the second preset duration, or the first preset duration and the second preset duration can be set to be unequal, and so on. Such flexible adjustments and changes do not deviate from the principles and scope of the present invention and should be included in the protection scope of the present invention.

[0167] Specifically, in practical applications, those skilled in the art may set specific values ​​of the first preset time length and the second preset time length based on experience or experiments.

[0168] Exemplarily, the first preset time length is 2 minutes, and the second preset time length is 2 minutes.

[0169] The control method of the present invention further includes:

[0170] Obtaining the duration during which the concentration of the bactericidal substance is greater than a preset concentration;

[0171] Determine whether the duration exceeds the preset time;

[0172] According to the judgment result, the sterilization device 4 is selectively turned off.

[0173] Through such a setting, it is possible to judge whether the duration of the concentration of the bactericidal substance being greater than the preset concentration exceeds the preset time, thereby being able to judge whether the bactericidal substance in the water can be maintained within the effective bactericidal concentration range for a long time, and then being able to selectively shut down the sterilization device 4 in a timely manner according to the judgment result to end the sterilization, which can further reduce energy waste and reduce scaling of the electrolysis module.

[0174] It should be noted that, in practical applications, those skilled in the art may set a specific value of the preset time based on experience or experiments.

[0175] Exemplarily, the preset time is 10 minutes.

[0176] Preferably, the step of "selectively shutting down the sterilization device 4 according to the judgment result" specifically includes:

[0177] If the judgment result is "yes", the sterilization device 4 is turned off.

[0178] Through such a setting, when the judgment result is "yes", it means that the concentration of the sterilizing substance is greater than the preset concentration and the duration exceeds the preset time, which is sufficient to effectively sterilize the waterway. At this time, timely shutting down the sterilizing device 4 can reduce energy waste. At the same time, it can avoid serious scaling caused by long-term operation of the sterilizing device 4, thereby improving the service life of the sterilizing device 4.

[0179] Preferably, the step of "selectively shutting down the sterilization device 4 according to the judgment result" specifically includes:

[0180] If the judgment result is "No", the sterilization device 4 is not turned off.

[0181] Through such an arrangement, when the judgment result is "no", it means that although the concentration of the bactericidal substance is greater than the preset concentration, the duration has not exceeded the preset time, that is, the water purification waterway cannot be effectively sterilized at this time. Without closing the sterilization device 4, the bactericidal substance can be continuously released to avoid incomplete sterilization due to too short sterilization time.

[0182] The specific embodiments of the control method of the present invention are described in detail below in conjunction with the following situations.

[0183] Set C0=0.4ppm, A1=0.7ppm, A2=-0.1ppm.

[0184] Scenario 1:

[0185] If the concentration of the bactericidal substance detected at the water outlet 412 is C=1.2ppm at a certain moment, then △=C-C0=(1.2-0.4)ppm=0.8ppm>A1, and the electrolytic intensity of the electrolytic module is reduced.

[0186] Scenario 2:

[0187] If at a certain moment it is detected that the concentration of the bactericidal substance at the water outlet 412 is C=0.1ppm, △=C-C0=(0.1-0.4)ppm=-0.3ppm<A2, then the electrolytic intensity of the electrolytic module is increased.

[0188] Scenario 3:

[0189] If at a certain moment the concentration of the bactericidal substance detected at the water outlet 412 is C=0.7ppm, △=C-C0=(0.7-0.4)ppm=0.3ppm, A2≤△≤A1, the electrolytic strength of the electrolytic module is not adjusted.

[0190] Scenario 4:

[0191] If at a certain moment the concentration of the bactericidal substance detected at the water outlet 412 is C=1.1ppm, Δ=C-C0=(1.1-0.4)ppm=0.7ppm, Δ=A1, the electrolytic strength of the electrolysis module is not adjusted.

[0192] Scenario 5:

[0193] If at a certain moment the concentration of the bactericidal substance detected at the water outlet 412 is C=0.3ppm, Δ=C-C0=(0.3-0.4)ppm=-0.1ppm, Δ=A2, the electrolytic strength of the electrolysis module is not adjusted.

[0194] In addition, the present invention also provides a water purifier, which includes a controller, and the controller is configured to be able to execute the control method for the water purifier introduced above.

[0195] It should be noted that the controller is communicatively connected with the concentration detection component to realize intelligent detection of the concentration of the sterilizing substance at the water outlet 412 , and the controller is also communicatively connected with the sterilizing device 4 to realize intelligent sterilization of the water purifier.

[0196] So far, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

Claims

1. A control method for a water purifier, characterized in that: The water purifier comprises a water purification pipeline, the water purification pipeline comprises a filter and a sterilization device arranged in series, the sterilization device comprises a shell and an electrolysis module arranged in the shell, the shell has a water inlet and a water outlet, the electrolysis module is configured to electrolyze a sterilizing substance, and after starting the sterilization device, the control method comprises the following steps: Acquire the concentration C of the bactericidal substance at the water outlet in real time; Get the preset concentration C0; The electrolysis intensity of the electrolysis module is selectively adjusted according to the concentration C of the bactericidal substance and the preset concentration C0.

2. The control method for a water purifier according to claim 1, characterized in that: The step of "selectively adjusting the electrolysis intensity of the electrolysis module according to the concentration of the bactericidal substance" specifically includes: Calculate the difference △ = C-C0; Compare the difference △ with the first preset value A1 and the second preset value A2 respectively; According to the comparison result, selectively adjusting the electrolysis intensity of the electrolysis module; Among them, A1>0, A2<0.

3. The control method for a water purifier according to claim 2, characterized in that: The step of "selectively adjusting the electrolysis intensity of the electrolysis module according to the comparison result" specifically includes: If Δ>A1, the electrolysis intensity of the electrolysis module is reduced.

4. The control method for a water purifier according to claim 2, characterized in that: The step of "selectively adjusting the electrolysis intensity of the electrolysis module according to the comparison result" specifically includes: If A2≤Δ≤A1, the electrolysis intensity of the electrolysis module is not adjusted.

5. The control method for a water purifier according to claim 2, characterized in that: The step of "selectively adjusting the electrolysis intensity of the electrolysis module according to the comparison result" specifically includes: If Δ<A2, the electrolysis intensity of the electrolysis module is adjusted to be larger.

6. The control method for a water purifier according to claim 1, characterized in that: The electrolysis module comprises a first electrolysis component and a second electrolysis component, wherein the first electrolysis component and / or the second electrolysis component comprises at least one group of cathode electrodes and anode electrodes arranged in sequence, the electrolysis module further comprises a proton exchange membrane, the cathode electrode and the anode electrode are arranged opposite to each other and are respectively located on both sides of the proton exchange membrane, and after starting the sterilization device, the control method further comprises: The first electrolysis assembly and the second electrolysis assembly are operated alternately.

7. The control method for a water purifier according to claim 1, characterized in that: Before starting the sterilization device, the control method further includes: Obtaining the running time of the water purifier since the last execution of the sterilization mode; Determine whether the running time reaches the set time; According to the judgment result, the sterilization device is selectively started.

8. The control method for a water purifier according to claim 7, characterized in that: The step of "selectively starting the sterilization device according to the judgment result" specifically includes: If the judgment result is "yes", the current time is further obtained; Determine whether the current time is within a set time range; According to the judgment result, the sterilization device is selectively started.

9. The control method for a water purifier according to any one of claims 1 to 8, characterized in that: After starting the sterilization device, the control method further includes: Obtaining the duration during which the concentration C of the bactericidal substance is greater than a preset concentration; Determine whether the duration exceeds a preset time; According to the judgment result, the sterilization device is selectively turned off.

10. A water purifier, characterized in that: The water purifier includes a controller configured to execute the control method for a water purifier according to any one of claims 1 to 9.

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