Water purifier, control method and device thereof and computer readable storage medium

Abstract

The present application relates to water purification equipment technical field, disclose a water purifier and control method, device and computer readable storage medium thereof, including filter core assembly, flow rate detection component, control panel and reset unit, flow rate detection component is used for detecting the water flow rate of filter core assembly, control panel can detect the life of filter core assembly, reset unit is used for executing reset program, based on control panel detects that the life of filter core assembly expires, and flow rate detection component detects that the water flow rate of filter core assembly suddenly becomes big, control panel controls reset unit to execute reset program, to make control panel recalculate the life of filter core assembly after replacement.The water purifier of the present application can realize automatic reset after replacing filter core assembly, without manual operation of the user, and also avoids the user forgetting to reset manually, resulting in the whole machine not calculating the service life of the new filter core in time, resulting in the problem of inaccurate filter core service life calculation.

Description

Technical Field

[0001] This invention relates to the field of water purification equipment technology, specifically to water purifiers and their control methods, devices, and computer-readable storage media. Background Technology

[0002] Water purifiers filter tap water using composite filters and RO membrane filters. The composite filter removes impurities, sediment, and suspended solids, while the RO membrane filter removes ions and bacteria, reducing the organic matter content. However, filters have a lifespan. After filtering a certain amount of water or using the RO membrane filter for a certain period, the filtration efficiency will decrease, requiring replacement. Most water purifiers now have a filter lifespan calculation function. When a filter reaches its expiration date, a corresponding light will flash on the panel, reminding the user that the filter has expired and needs replacement. After replacement, the user needs to manually reset the filter. This reset serves two purposes: first, it stops the panel light from flashing (a flashing light indicates the filter's expiration date); second, it resets the filter's lifespan calculation for the new filter.

[0003] Currently, most water purifiers on the market require users to manually reset the filter cartridges after replacement, which increases the user's steps. Furthermore, if the user forgets to reset the filter cartridges, the machine will not calculate the lifespan of the newly replaced filter cartridges in time, resulting in inaccurate calculations of the filter cartridge lifespan. Summary of the Invention

[0004] In view of this, the present invention provides a water purifier and its control method, device and computer-readable storage medium to solve the problem that existing water purifiers require users to manually reset the filter cartridge after replacing it, which increases the user's operation steps, and when the user forgets to reset the filter cartridge, the whole machine does not calculate the lifespan of the newly replaced filter cartridge in time, resulting in inaccurate calculation of the filter cartridge lifespan.

[0005] A first aspect of the present invention provides a water purifier, including a filter cartridge assembly, a flow rate detection assembly, a control panel, and a reset unit. The flow rate detection assembly is used to detect the water flow rate of the filter cartridge assembly. The control panel is connected to both the filter cartridge assembly and the flow rate detection assembly. The control panel is capable of detecting the lifespan of the filter cartridge assembly. The reset unit is communicatively connected to the control panel and is used to execute a reset procedure. Based on the control panel detecting that the lifespan of the filter cartridge assembly has expired and the flow rate detection assembly detecting a sudden increase in the water flow rate of the filter cartridge assembly, the control panel controls the reset unit to execute a reset procedure so that the control panel recalculates the lifespan of the replaced filter cartridge assembly.

[0006] Beneficial effects: The water purifier of this application can detect the expiration of the filter element's lifespan through the control panel. If the flow rate detection component detects a sudden increase in the water flow rate through the filter element, the control panel controls the reset unit to execute a reset program, so that the control panel recalculates the lifespan of the replaced filter element. Therefore, the water purifier of this application can automatically reset after replacing the filter element without manual operation by the user, improving the user experience. It also avoids the problem of inaccurate filter element lifespan calculation caused by the user forgetting to reset manually, which would result in the machine not calculating the lifespan of the newly replaced filter element in time.

[0007] In some embodiments, the water purifier further includes a water purification pipeline, the filter element assembly and the flow rate detection assembly are both disposed in the water purification pipeline, and the flow rate detection assembly is located downstream of the filter element assembly.

[0008] Beneficial effects: By connecting the filter cartridge assembly and the flow rate detection assembly in series in the water purification pipeline, and with the flow rate detection assembly located downstream of the filter cartridge assembly, it is convenient for the flow rate detection assembly to detect the water flow rate through the filter cartridge assembly.

[0009] In some embodiments, the water purification pipeline includes a raw water pipeline and a coarse filtration pipeline, the filter element assembly includes a pre-filter, the first inlet of the pre-filter is connected to the raw water pipeline, the first outlet of the pre-filter is connected to the coarse filtration pipeline, and the flow rate detection assembly includes a first flow rate detection element disposed in the coarse filtration pipeline.

[0010] Beneficial effects: Raw water flows into the pre-filter cartridge through the raw water pipeline and the first inlet for coarse filtration. The coarsely filtered raw water flows into the coarse filtration pipeline from the first outlet. The first flow velocity detection device installed on the coarse filtration pipeline can detect the flow velocity of the outflowing raw water, which is the flow velocity of the pre-filter cartridge.

[0011] In some embodiments, the water purification pipeline includes a fine filtration pipeline, the filter cartridge assembly further includes a fine filter cartridge, the fine filter cartridge has a fine filter cartridge inlet and a pure water outlet, the fine filter cartridge inlet is connected to the coarse filtration pipeline, the pure water outlet is connected to the fine filtration pipeline, and the flow rate detection assembly includes a second flow rate detection element, the second flow rate detection element being disposed in the fine filtration pipeline.

[0012] Beneficial effects: The raw water after coarse filtration flows into the fine filter cartridge through the coarse filtration pipeline and the fine filter cartridge inlet for deep filtration. The filtered pure water flows into the fine filtration pipeline from the pure water outlet. The second flow rate detection device installed on the fine filtration pipeline can detect the flow rate of the pure water flowing out, which is the flow rate of the fine filter cartridge.

[0013] In some embodiments, the water purification pipeline further includes a pure water pipeline, the filter assembly further includes a post-filter, the second inlet of the post-filter is connected to the fine filtration pipeline, and the second outlet of the post-filter is connected to the pure water pipeline.

[0014] Beneficial effects: The pure water flowing out of the fine filter cartridge flows into the post-filter cartridge through the fine filtration pipeline and the second inlet for further filtration. The filtered pure water then flows into the pure water pipeline through the second outlet for user use.

[0015] In some embodiments, the first flow velocity sensor and / or the second flow velocity sensor is a flow meter.

[0016] Beneficial effects: Using a flow meter to detect the flow rate of the pre-filter and / or fine filter is very convenient. Specifically, by using the flow meter to count the number of pulses f per second, and then using the flow meter's calculation formula to determine how many liters of water flow through the pre-filter and / or fine filter per second, the flow rate of the pre-filter and / or fine filter can be obtained.

[0017] A second aspect of the present invention provides a control method for controlling the water purifier of the present invention, the control method comprising:

[0018] Determine if the filter cartridge assembly has reached the end of its lifespan;

[0019] If so, obtain the water flow rate of the filter element assembly;

[0020] Determine whether the water flow rate of the filter element assembly suddenly increases;

[0021] If so, execute a reset procedure to recalculate the lifespan of the replaced filter assembly.

[0022] Since the control method of this application is used to control the water purifier of this application, it has the same technical effect as the water purifier, and will not be described in detail here.

[0023] In some embodiments, the filter assembly includes a pre-filter and / or a fine filter, and the step of determining whether the lifespan of the filter assembly has expired includes: determining whether the lifespan of the pre-filter and / or the fine filter has expired.

[0024] Beneficial effects: By determining whether the pre-filter and / or fine filter have reached the end of their lifespan, the pre-filter and / or fine filter can be replaced in a timely manner when they do, ensuring the quality of purified water.

[0025] In some embodiments, the step of obtaining the water flow rate of the filter assembly if yes includes: if yes, obtaining the water flow rate of the pre-filter and / or the fine filter.

[0026] Beneficial effects: Since the filter cartridge assembly includes a pre-filter and / or a fine filter, obtaining the water flow rate of the filter cartridge assembly includes obtaining the water flow rate of the pre-filter and / or fine filter to further determine whether the pre-filter and / or fine filter needs to be replaced.

[0027] In some embodiments, the step of determining whether the water flow rate of the filter element assembly suddenly increases includes: determining whether the real-time water flow rate of the filter element assembly is greater than the water flow rate of the filter element assembly in the previous second.

[0028] Beneficial effect: If it is determined that the real-time water flow rate of the filter element is greater than the water flow rate of the filter element in the previous second, it is concluded that the water flow rate of the filter element has suddenly increased, indicating that the filter element has been replaced and the next step can be carried out.

[0029] In some embodiments, the step of performing a reset procedure to recalculate the lifespan of the replaced filter assembly includes:

[0030] If so, determine whether the water flow rate of the filter element assembly is greater than or equal to the preset flow rate;

[0031] If so, execute a reset procedure to recalculate the lifespan of the replaced filter assembly.

[0032] Beneficial effects: Since relying solely on whether the water flow rate of the filter element suddenly increases to determine whether to replace the filter element may lead to misjudgment, in order to improve the accuracy of the judgment, an additional judgment condition is added when the water flow rate of the filter element suddenly increases. That is, it is further judged whether the water flow rate of the filter element is greater than or equal to the preset flow rate. If so, the reset procedure is executed to recalculate the life of the replaced filter element.

[0033] In some embodiments, in the step of determining whether the flow rate of the filter element assembly is greater than or equal to a preset flow rate, the preset flow rate is the average flow rate of the unused filter element assembly within a preset time period.

[0034] Beneficial effect: When the water flow rate of the filter element is greater than or equal to the average water flow rate of the unused filter element within a preset time period, it can be determined that the filter element has been replaced. Then, a reset procedure can be executed to facilitate the calculation of the lifespan of the replaced filter element.

[0035] In some embodiments, the step of determining whether the lifespan of the filter element assembly has expired includes: determining whether the usage time of the filter element assembly has reached a preset time.

[0036] Beneficial effect: It is very convenient to determine whether the filter element has reached the preset lifespan by judging whether the filter element has been used for a certain period of time.

[0037] A third aspect of the present invention provides a control device for implementing the control method described above, the control device comprising:

[0038] The judgment module is used to determine whether the filter element assembly has reached the end of its lifespan and whether the water flow rate of the filter element assembly suddenly increases.

[0039] The acquisition module is used to acquire the water flow rate of the filter element assembly;

[0040] The reset module is used to execute the reset procedure.

[0041] Since the control device of this application is used to implement the control method of this application, it has the same technical effect as the control method, and will not be described in detail here.

[0042] A fourth aspect of the present invention provides a computer-readable storage medium storing computer instructions that, when executed, implement the control method described above.

[0043] Since the computer-readable storage medium of this application stores computer instructions, when the computer instructions are executed, the above-described control method is implemented, thus having the same technical effect as the control method, which will not be described in detail here. Attached Figure Description

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

[0045] Figure 1 This is a schematic diagram of the overall connection structure of a water purifier according to an embodiment of the present invention;

[0046] Figure 2 This is a schematic diagram of the structure of a composite filter element according to an embodiment of the present invention;

[0047] Figure 3 This is a schematic diagram of the structure of a fine filter element according to an embodiment of the present invention;

[0048] Figure 4 This is a flowchart illustrating the main steps of a control method according to an embodiment of the present invention.

[0049] Figure 5 This is a detailed flowchart of the control method according to an embodiment of the present invention;

[0050] Figure 6 This is a flowchart of some steps of a control method according to an embodiment of the present invention.

[0051] Explanation of reference numerals in the attached figures

[0052] 100. Raw water pipeline; 200. Coarse filtration pipeline; 300. Fine filtration pipeline; 400. Pure water pipeline; 500. Purified water branch line; 600. Wastewater pipeline;

[0053] 1. Composite filter element; 11. Pre-filter element; 12. Post-filter element; 13. First water inlet; 14. First water outlet; 15. Second water inlet; 16. Second water outlet;

[0054] 2. Fine filter element; 21. Fine filter element inlet; 22. Pure water outlet; 23. Wastewater outlet;

[0055] 3. First flow velocity detection component;

[0056] 4. Second flow velocity detection component;

[0057] 5. Inlet solenoid valve;

[0058] 6. Pressure stabilizing pump;

[0059] 7. Wastewater solenoid valve. Detailed Implementation

[0060] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0061] In the description of this invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0062] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0063] Furthermore, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0064] The following is combined Figures 1 to 6 The following describes embodiments of the present invention.

[0065] like Figures 1 to 3 As shown, according to an embodiment of the present invention, a water purifier is disclosed, including a filter element assembly, a flow rate detection assembly, a control panel, and a reset unit. The flow rate detection assembly is used to detect the water flow rate of the filter element assembly. The control panel is connected to both the filter element assembly and the flow rate detection assembly and is capable of detecting the lifespan of the filter element assembly. The reset unit is communicatively connected to the control panel and is used to execute a reset procedure. Based on the control panel detecting that the lifespan of the filter element assembly has expired and the flow rate detection assembly detecting that the water flow rate of the filter element assembly has suddenly increased, the control panel controls the reset unit to execute a reset procedure so that the control panel recalculates the lifespan of the replaced filter element assembly.

[0066] The water purifier of this application can detect the expiration of the filter element's lifespan via the control panel. If the flow rate detection component detects a sudden increase in the water flow rate through the filter element, the control panel will control the reset unit to execute a reset program, so that the control panel can recalculate the lifespan of the replaced filter element. Therefore, the water purifier of this application can automatically reset after replacing the filter element without manual operation by the user, improving the user experience and avoiding the problem of inaccurate filter element lifespan calculation caused by the user forgetting to reset manually and the machine not calculating the lifespan of the newly replaced filter element in time.

[0067] It should be noted that the water flow rate refers to the speed of the water flow through the filter element assembly. The techniques used by the control panel to detect the filter element's lifespan and the reset unit to execute the reset procedure are well-known in the field and will not be elaborated upon in this embodiment.

[0068] In some embodiments, the water purifier further includes a water purification pipeline, and both the filter element assembly and the flow rate detection assembly are disposed in the water purification pipeline, with the flow rate detection assembly located downstream of the filter element assembly.

[0069] By connecting the filter cartridge assembly and the flow rate detection assembly in series in the water purification pipeline, with the flow rate detection assembly located downstream of the filter cartridge assembly, it is convenient for the flow rate detection assembly to detect the water flow rate through the filter cartridge assembly.

[0070] like Figure 1 and Figure 2 As shown, in some embodiments, the water purification pipeline includes a raw water pipeline 100 and a coarse filtration pipeline 200. The filter element assembly includes a pre-filter 11, the first inlet 13 of the pre-filter 11 is connected to the raw water pipeline 100, the first outlet 14 of the pre-filter 11 is connected to the coarse filtration pipeline 200, and the flow rate detection assembly includes a first flow rate detection element 3, which is disposed in the coarse filtration pipeline 200.

[0071] Raw water flows into the pre-filter cartridge 11 through the raw water pipeline 100 and the first inlet 13 for coarse filtration. The coarsely filtered raw water flows into the coarse filtration pipeline 200 from the first outlet 14. The first flow velocity detection element 3 installed on the coarse filtration pipeline 200 can detect the flow velocity of the outflowing raw water, which is the flow velocity of the pre-filter cartridge 11.

[0072] In this embodiment, the raw water pipeline 100 is connected to tap water, and the raw water is tap water. However, it is not limited to this. For example, the raw water pipeline 100 can also be connected to well water, in which case the raw water is well water.

[0073] like Figure 1 and Figure 3 As shown, in some embodiments, the water purification pipeline includes a fine filtration pipeline 300, and the filter element assembly also includes a fine filter element 2. The fine filter element 2 has a fine filter element inlet 21 and a pure water outlet 22. The fine filter element inlet 21 is connected to the coarse filtration pipeline 200, and the pure water outlet 22 is connected to the fine filtration pipeline 300. The flow rate detection assembly includes a second flow rate detection element 4, which is disposed in the fine filtration pipeline 300.

[0074] After coarse filtration, the raw water flows into the fine filter element 2 through the coarse filtration pipeline 200 and the fine filter element inlet 21 for deep filtration. The filtered pure water flows into the fine filtration pipeline 300 from the pure water outlet 22. The second flow rate detection element 4 installed on the fine filtration pipeline 300 can detect the flow rate of the outflowing pure water, which is the water flow rate of the fine filter element 2.

[0075] In some embodiments, the water purification pipeline further includes a pure water pipeline 400, and the filter assembly further includes a post-filter 12. The second inlet 15 of the post-filter 12 is connected to the fine filtration pipeline 300, and the second outlet 16 of the post-filter 12 is connected to the pure water pipeline 400.

[0076] The pure water flowing out of the fine filter element 2 flows into the post filter element 12 through the fine filtration pipeline 300 and the second inlet 15 for further filtration. The filtered pure water flows into the pure water pipeline 400 through the second outlet 16 for user use.

[0077] Specifically, the pre-filter 11 can be a filter element made of PP cotton, activated carbon, and ultrafiltration. It can adsorb impurities such as sediment in the raw water and remove residual chlorine, thus achieving coarse filtration of the raw water.

[0078] The post-filter 12 can further filter pure water to remove trace elements, adjust pH, and improve drinking taste. For example, the post-filter 12 can be a filter containing activated carbon.

[0079] Preferably, the pre-filter 11 and the post-filter 12 can be integrated to form a composite filter 1, thereby reducing the size of the water purifier and making the overall structure highly integrated. Specifically, the composite filter 1 has a filter housing, in which the pre-filter 11 and the post-filter 12 are independently arranged.

[0080] The fine filter cartridge 2 has a higher filtration accuracy than the pre-filter cartridge 11. The fine filter cartridge 2 is located downstream of the pre-filter cartridge 11 and can further purify the raw water filtered by the pre-filter cartridge 11. It is the core processing filter cartridge of the water purifier.

[0081] In specific forms, for example, the fine filter element 2 can be a reverse osmosis membrane filter element (RO filter element), a nanofiltration membrane filter element, or a ceramic filter element, etc., depending on the filtration requirements. This embodiment does not make specific limitations.

[0082] Because the particle size of the fine filter element 2 is very small, the resistance of the raw water is relatively large. Therefore, a pressure stabilizing pump 6 is installed on the coarse filtration pipeline 200. The pressure stabilizing pump 6 is located downstream of the first flow velocity detection element 3. The pressure stabilizing pump 6 is used to pressurize the raw water so that it can pass through the fine filter element 2 more easily and improve the filtration efficiency.

[0083] In some embodiments, an inlet solenoid valve 5 is also provided on the coarse filter pipeline 200, and the inlet solenoid valve 5 is located between the pressure stabilizing pump 6 and the first flow rate detection element 3.

[0084] The inlet solenoid valve 5 can control and regulate the raw water flowing to the fine filter element 2, and can also cut off the coarse filter pipe 200 when the water purifier stops working, so as to prevent raw water from continuing to flow into the fine filter element 2 and causing damage to the filter element.

[0085] In some embodiments, the fine filter element 2 also has a wastewater outlet 23, and the water purification pipeline also includes a wastewater pipeline 600, which is connected to the wastewater outlet 23.

[0086] When the fine filter element 2 is used for filtration, it will generate corresponding wastewater. The wastewater flows into the wastewater pipe 600 through the wastewater outlet 23 and is discharged to the outside through the wastewater pipe 600.

[0087] Wastewater solenoid valve 7 is installed on wastewater pipeline 600. Wastewater solenoid valve 7 is used to control the connection or disconnection of wastewater pipeline 600.

[0088] In some embodiments, the first flow velocity sensor 3 and / or the second flow velocity sensor 4 are flow meters.

[0089] Using a flow meter to detect the flow rate of pre-filter 11 and / or fine filter 2 is very convenient. Specifically, by using the flow meter to count the number of pulses f per second, and then using the flow meter calculation formula to calculate how many liters of water flow through pre-filter 11 and / or fine filter 2 per second, the flow rate of pre-filter 11 and / or fine filter 2 can be obtained.

[0090] In addition to the above-mentioned settings, the water purifier in this embodiment also includes a water purification branch 500, which is connected to a coarse filtration pipe 200. A portion of the raw water in the coarse filtration pipe 200 can flow out through the water purification branch 500 for user use (washing vegetables, washing dishes, etc.).

[0091] Specifically, the connection between the water purification branch 500 and the coarse filtration pipeline 200 is located between the first flow velocity detection element 3 and the inlet solenoid valve 5, but is not limited to this.

[0092] For example, in other embodiments, the connection between the water purification branch 500 and the coarse filter pipeline 200 may also be located upstream of the first flow velocity detection element 3, or between the water inlet solenoid valve 5 and the pressure stabilizing pump 6, or downstream of the pressure stabilizing pump 6.

[0093] To facilitate understanding of the water purifier in this embodiment, its working principle is described below:

[0094] In normal operation of the water purifier, raw water (such as tap water) flows into the pre-filter cartridge 11 through the raw water pipe 100 and the first inlet 13 for coarse filtration to remove impurities such as sediment and residual chlorine. The filtered raw water then flows into the coarse filtration pipe 200 through the first outlet 14. Part of the raw water flows along the coarse filtration pipe 200 into the purified water branch pipe 500 for user use (washing vegetables, dishes, etc.). Another part of the raw water flows sequentially through the first flow rate detection element 3, the inlet solenoid valve 5, and the pressure stabilizing pump. 6. Water flows into the fine filter cartridge 2 through the fine filter cartridge inlet 21 for deep purification to remove organic matter, pigments and other substances from the raw water. The resulting wastewater flows into the wastewater pipe 600 through the wastewater outlet 23 and is discharged. The resulting pure water flows through the pure water outlet 22, the fine filter pipe 300 and the second inlet 15 in sequence before flowing into the post-filter cartridge 12 for further filtration to remove trace elements, adjust the pH value and drinking taste. The filtered pure water flows out through the second outlet 16 and the pure water pipe 400 for user use.

[0095] When the control panel detects that the lifespan of the pre-filter 11 has expired, the first flow rate detection element 3 starts to detect the water flow rate of the pre-filter 11. Due to the expiration of the lifespan, the water flow rate of the pre-filter 11 tends to decrease. When the first flow rate detection element 3 detects that the water flow rate of the pre-filter 11 suddenly increases, it indicates that the pre-filter 11 has been replaced. The control panel controls the reset unit to execute the reset program to recalculate the lifespan of the replaced pre-filter 11.

[0096] When the control panel detects that the lifespan of the fine filter element 2 has expired, the second flow rate detection element 4 starts to detect the water flow rate of the fine filter element 2. Due to the expiration of the lifespan, the water flow rate of the fine filter element 2 shows a decreasing trend. When the second flow rate detection element 4 detects that the water flow rate of the fine filter element 2 suddenly increases, it indicates that the fine filter element 2 has been replaced. The control panel controls the reset unit to execute the reset program to recalculate the lifespan of the replaced fine filter element 2.

[0097] It should be noted that the lifespan of the pre-filter 11 is different from that of the fine filter 2. Therefore, the lifespan of the pre-filter 11 and the fine filter 2 generally will not expire at the same time. Their control programs are separate and independent and will not interfere with each other.

[0098] like Figures 4 to 6 As shown, according to an embodiment of the present invention, in another aspect, a control method is also disclosed for controlling the water purifier of this embodiment. The control method includes the following steps:

[0099] Determine if the filter cartridge assembly has reached the end of its lifespan;

[0100] If so, obtain the water flow rate of the filter element assembly;

[0101] Determine if the water flow rate of the filter element suddenly increases;

[0102] If so, execute the reset procedure to recalculate the lifespan of the replaced filter assembly.

[0103] Since the control method of this application is used to control the water purifier of this application, it has the same technical effect as the water purifier, and will not be described in detail here.

[0104] In some embodiments, the filter element assembly includes a pre-filter 11 and / or a fine filter 2, and the step of determining whether the lifespan of the filter element assembly has expired includes: determining whether the lifespan of the pre-filter 11 and / or the fine filter 2 has expired.

[0105] By determining whether the pre-filter 11 and / or fine filter 2 have reached the end of their service life, the pre-filter 11 and / or fine filter 2 can be replaced in a timely manner when their service life expires, thus ensuring the quality of purified water.

[0106] In this embodiment, the filter assembly includes a pre-filter 11 and a fine filter 2.

[0107] In some embodiments, if so, the step of obtaining the water flow rate of the filter element assembly includes:

[0108] If so, obtain the water flow rate of the pre-filter 11 and / or the fine filter 2.

[0109] Since the filter assembly includes a pre-filter 11 and / or a fine filter 2, obtaining the water flow rate of the filter assembly includes obtaining the water flow rate of the pre-filter 11 and / or the fine filter 2 to further determine whether the pre-filter 11 and / or the fine filter 2 need to be replaced.

[0110] In this embodiment, the filter assembly includes a pre-filter 11 and a fine filter 2. The water flow rates of the pre-filter 11 and the fine filter 2 are not equal. Therefore, the water flow rate includes a first water flow rate and a second water flow rate. The first water flow rate is the water flow rate of the pre-filter 11, and the second water flow rate is the water flow rate of the fine filter 2. Usually, the first water flow rate is greater than the second water flow rate.

[0111] In some embodiments, the step of determining whether the water flow rate of the filter element assembly suddenly increases includes: determining whether the real-time water flow rate of the filter element assembly is greater than the water flow rate of the filter element assembly in the previous second.

[0112] If it is determined that the real-time water flow rate of the filter element is greater than the water flow rate of the filter element in the previous second, it is concluded that the water flow rate of the filter element has suddenly increased, indicating that the filter element has been replaced and the next step can be performed.

[0113] In this embodiment, the filter assembly includes a pre-filter 11 and a fine filter 2. Therefore, when the lifespan of the pre-filter 11 is detected to have expired, and the real-time water flow rate of the pre-filter 11 is greater than the water flow rate of the pre-filter 11 in the previous second, it is determined that the pre-filter 11 has been replaced, and the reset procedure of the pre-filter 11 can be executed to recalculate the lifespan of the replaced pre-filter 11. Similarly, when the lifespan of the fine filter 2 is detected to have expired, and the real-time water flow rate of the fine filter 2 is greater than the water flow rate of the fine filter 2 in the previous second, it is determined that the fine filter 2 has been replaced, and the reset procedure of the fine filter 2 can be executed to recalculate the lifespan of the replaced fine filter 2.

[0114] In some embodiments, if so, the step of performing a reset procedure to recalculate the lifespan of the replaced filter assembly includes the following steps:

[0115] If so, determine whether the water flow rate of the filter element assembly is greater than or equal to the preset flow rate;

[0116] If so, execute the reset procedure to recalculate the lifespan of the replaced filter assembly.

[0117] Since relying solely on whether the water flow rate of the filter element suddenly increases to determine whether to replace the filter element may lead to misjudgment, in order to improve the accuracy of the judgment, an additional judgment condition is added when the water flow rate of the filter element suddenly increases. That is, it is further judged whether the water flow rate of the filter element is greater than or equal to the preset flow rate. If so, the reset procedure is executed to recalculate the life of the replaced filter element.

[0118] In some embodiments, if so, in the step of determining whether the water flow rate of the filter element assembly is greater than or equal to a preset flow rate, the preset flow rate is the average water flow rate of the unused filter element assembly within a preset time period.

[0119] When the water flow rate of the filter element is greater than or equal to the average water flow rate of the unused filter element within a preset time period, it can be determined that the filter element has been replaced. Then, a reset procedure can be executed to facilitate the calculation of the lifespan of the replaced filter element.

[0120] It should be noted that the unused filter cartridges are brand new filter cartridges. The average flow rate of the brand new filter cartridges within a preset time period can be determined by experimentation, and this embodiment does not impose any specific limitations.

[0121] It is understood that the preset time period here can be 5 seconds, 10 seconds, 15 seconds or 20 seconds, etc., and this embodiment does not make a specific limitation.

[0122] Of course, in other embodiments, the preset flow rate may also be the average flow rate of multiple unused filter cartridges.

[0123] The average flow rate of multiple unused filter cartridges can be obtained by statistically analyzing their flow rates and averaging them. This can be determined through experiments, and will not be elaborated further in this embodiment.

[0124] In some embodiments, the step of determining whether the lifespan of the filter element assembly has expired includes: determining whether the usage time of the filter element assembly has reached a preset time.

[0125] It is very convenient to determine whether the filter element has reached the preset lifespan by judging whether the filter element has been used for a certain period of time.

[0126] In this embodiment, the filter assembly includes a pre-filter 11 and a fine filter 2. The pre-filter 11 and the fine filter 2 have different usage times. For example, the fine filter 2 can last up to 300 hours, while the pre-filter 11 often lasts less than 300 hours. The preset duration in this embodiment includes a first preset duration and a second preset duration. The first preset duration is 300 hours for the fine filter 2, and the second preset duration is less than 300 hours (determined according to the filter type) for the pre-filter 11.

[0127] It should be noted that the pre-filter 11 and the fine filter 2 have different service lives. Therefore, the lifespan of the pre-filter 11 and the fine filter 2 will generally not expire at the same time. Thus, the control methods for determining the expiration and replacement of the pre-filter 11 and the fine filter 2 are carried out separately and independently, without interfering with each other.

[0128] According to an embodiment of the present invention, in a third aspect, a control device is disclosed. The control device is used to implement the control method described above. The control device includes a judgment module, an acquisition module, and a reset module. The judgment module is used to determine whether the lifespan of the filter element assembly has expired and whether the water flow rate of the filter element assembly has suddenly increased. The acquisition module is used to acquire the water flow rate of the filter element assembly. The reset module is used to execute a reset procedure.

[0129] Since the control device of this application is used to implement the control method of this application, it has the same technical effect as the control method, and will not be described in detail here.

[0130] According to an embodiment of the present invention, in a fourth aspect, a computer-readable storage medium is disclosed, which stores computer instructions that, when executed, implement the control method described above.

[0131] Since the computer-readable storage medium of this application stores computer instructions, when the computer instructions are executed, the above-described control method is implemented, thus having the same technical effect as the control method, which will not be described in detail here.

[0132] For example, a computer-readable storage medium may be a storage optical disc, a hard disk, or a USB flash drive, but is not limited to these.

[0133] Although embodiments of the invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the invention, and such modifications and variations all fall within the scope defined by this application.

Claims

1. A water purifier, characterized in that, include: A filter element assembly, the filter element assembly including a pre-filter (11) and a fine filter (2). A flow rate detection component is used to detect the water flow rate of the filter element assembly. The flow rate detection component includes a first flow rate detection element (3), which is disposed downstream of the pre-filter element (11) and is used to detect the water flow rate of the pre-filter element (11). The flow rate detection component also includes a second flow rate detection element (4), which is disposed downstream of the fine filter element and is used to detect the water flow rate of the fine filter element. The pressure stabilizing pump (6) is located downstream of the first flow velocity detection element (3) and upstream of the fine filter element; The control panel is connected to both the filter element assembly and the flow rate detection assembly. The control panel is capable of detecting whether the filter element assembly has reached the end of its lifespan. A reset unit is communicatively connected to the control panel, and the reset unit is used to execute a reset procedure. Based on the control panel detecting that the filter element assembly has reached the end of its lifespan, and the flow rate detection component detecting that the water flow rate of the filter element assembly has suddenly increased, the control panel controls the reset unit to execute a reset procedure so that the control panel recalculates the lifespan of the replaced filter element assembly.

2. The water purifier according to claim 1, characterized in that, The water purifier also includes a water purification pipeline, and the filter element assembly and the flow rate detection assembly are both located in the water purification pipeline, with the flow rate detection assembly located downstream of the filter element assembly.

3. The water purifier according to claim 2, characterized in that, The water purification pipeline includes a raw water pipeline (100) and a coarse filtration pipeline (200). The first inlet (13) of the pre-filter (11) is connected to the raw water pipeline (100), and the first outlet (14) of the pre-filter (11) is connected to the coarse filtration pipeline (200). The flow rate detection component includes a first flow rate detection element (3), which is disposed in the coarse filtration pipeline (200).

4. The water purifier according to claim 3, characterized in that, The water purification pipeline includes a fine filtration pipeline (300), the fine filter element (2) has a fine filter element inlet (21) and a pure water outlet (22), the fine filter element inlet (21) is connected to the coarse filtration pipeline (200), the pure water outlet (22) is connected to the fine filtration pipeline (300), and the flow rate detection component includes a second flow rate detection element (4), the second flow rate detection element (4) is disposed in the fine filtration pipeline (300).

5. The water purifier according to claim 4, characterized in that, The water purification pipeline also includes a pure water pipeline (400), and the filter element assembly also includes a post-filter (12). The second inlet (15) of the post-filter (12) is connected to the fine filtration pipeline (300), and the second outlet (16) of the post-filter (12) is connected to the pure water pipeline (400).

6. The water purifier according to claim 4 or 5, characterized in that, The first flow velocity detection element (3) and / or the second flow velocity detection element (4) are flow meters.

7. A control method, characterized in that, The control method for controlling the water purifier according to any one of claims 1 to 6 includes: Determine if the filter cartridge assembly has reached the end of its lifespan; If so, obtain the water flow rate of the filter element assembly; Determine whether the water flow rate of the filter element assembly suddenly increases; If so, execute a reset procedure to recalculate the lifespan of the replaced filter assembly.

8. The control method according to claim 7, characterized in that, The filter element assembly includes a pre-filter (11) and / or a fine filter (2), and the step of determining whether the filter element assembly has reached the end of its life includes: Determine whether the lifespan of the pre-filter (11) and / or the fine filter (2) has expired.

9. The control method according to claim 8, characterized in that, If so, the step of obtaining the water flow rate of the filter element assembly includes: If so, obtain the water flow rate of the pre-filter (11) and / or the fine filter (2).

10. The control method according to claim 7, characterized in that, The step of determining whether the water flow rate of the filter element assembly suddenly increases includes: Determine whether the real-time water flow rate of the filter element assembly is greater than the water flow rate of the filter element assembly in the previous second.

11. The control method according to claim 7, characterized in that, If so, the step of executing a reset procedure to recalculate the lifespan of the replaced filter assembly includes: If so, determine whether the water flow rate of the filter element assembly is greater than or equal to the preset flow rate; If so, execute a reset procedure to recalculate the lifespan of the replaced filter assembly.

12. The control method according to claim 11, characterized in that, In the step of determining whether the water flow rate of the filter element assembly is greater than or equal to a preset flow rate, the preset flow rate is the average water flow rate of the unused filter element assembly within a preset time period.

13. The control method according to claim 7, characterized in that, The steps for determining whether the filter element assembly has reached the end of its lifespan include: Determine whether the usage time of the filter element assembly has reached the preset time.

14. A control device, characterized in that, The control device is used to implement the control method according to any one of claims 7 to 13, and the control device comprises: The judgment module is used to determine whether the filter element assembly has reached the end of its lifespan and whether the water flow rate of the filter element assembly suddenly increases. The acquisition module is used to acquire the water flow rate of the filter element assembly; The reset module is used to execute the reset procedure.

15. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores computer instructions that, when executed, implement the control method described in any one of claims 7 to 13.

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