Water purification system and water purification equipment

Abstract

The utility model discloses a water purification system and water purification equipment. The water purification system comprises a front filtering branch, at least one mineralization branch, a pure water branch, a controller and a first driving branch. The front filtering branch filters raw water and then outputs pure water. And the mineralization branch is used for mineralizing and filtering the pure water and then outputting mineralized water. The pure water branch outputs pure water to the mineralized water so as to adjust the total amount of soluble solids of the mineralized water. The controller outputs a first driving signal and a second driving signal. The mineralization branch comprises a mineralization proportional valve and a mineralization filter element, and the first driving branch responds to the first driving signal to drive the mineralization proportional valve to open according to a first preset opening degree. The pure water branch comprises a pure water proportional valve, and the first driving branch responds to the second driving signal to drive the pure water proportional valve to open according to a second preset opening degree. By means of the mode, the TDS value can be increased or decreased, the requirements of different application scenes can be met, and practicability is high.

Description

Technical Field

[0001] The embodiments of the present application relate to the field of water purification technology, and in particular to a water purification system and water purification equipment. Background Art

[0002] Water is inextricably linked to our lives. Our bodies and household water-related appliances come into contact with water daily. The quality of water is crucial to the health of every family member and profoundly impacts the lifespan and performance of household water-related appliances. Currently, water purification equipment is commonly used to reduce the total dissolved solids (TDS) content in raw water to produce higher-quality purified water or pure water suitable for direct drinking.

[0003] Existing water purification systems typically adjust TDS by directly mixing raw water with purified water. However, this method can only reduce the TDS value of the raw water, but cannot achieve more comprehensive TDS adjustment, including increasing or decreasing the value. This method has limitations, is difficult to meet the needs of different application scenarios, and has poor practicality. Utility Model Content

[0004] The embodiments of the present application provide a water purification system and water purification equipment, which can increase or decrease the TDS value, meet the needs of different application scenarios, and are highly practical.

[0005] In a first aspect, an embodiment of the present application provides a water purification system, comprising:

[0006] The pre-filtration branch receives raw water and is configured to filter the raw water and then output pure water;

[0007] at least one mineralization branch, inputting the pure water and configured to perform mineralization filtering on the pure water and then output mineralized water;

[0008] a pure water branch, inputting the pure water and configured to output the pure water to the mineralized water to adjust the total dissolved solids value of the mineralized water;

[0009] A controller and a first driving branch, wherein the controller is configured to output a first driving signal and a second driving signal to the first driving branch;

[0010] The mineralized branch includes a mineralized proportional valve and a mineralized filter element, the mineralized proportional valve is arranged between the pre-filter branch and the mineralized filter element, the first drive branch is electrically connected to the controller and the mineralized proportional valve respectively, and when the at least one mineralized branch includes multiple mineralized branches, the mineralized filter elements in different mineralized branches are different;

[0011] The first driving branch is configured to drive the mineralization proportional valve to open the valve according to a first preset opening in response to the first driving signal, wherein the first preset opening is determined by the first driving signal;

[0012] The pure water branch includes a pure water proportional valve, and the first drive branch is also electrically connected to the pure water proportional valve. The first drive branch is also configured to drive the pure water proportional valve to open the valve according to a second preset opening in response to the second drive signal, wherein the second preset opening is determined by the second drive signal.

[0013] In one or more embodiments, the pre-filtration branch includes a polypropylene filter element, an upward flow granular activated carbon filter element, a compressed activated carbon filter element and a reverse osmosis filter element arranged in sequence, wherein the raw water is filtered through the polypropylene filter element, the upward flow granular activated carbon filter element, the compressed activated carbon filter element and the reverse osmosis filter element to form the pure water.

[0014] In one or more embodiments, the pre-filtration branch further includes a water inlet valve and a booster pump, and the water purification system further includes a second drive branch and a third drive branch;

[0015] The water inlet valve is provided between the compressed activated carbon filter element and the reverse osmosis filter element, the second drive branch is electrically connected to the water inlet valve and the controller respectively, and the second drive branch is configured to drive the water inlet valve to open upon receiving a third drive signal output by the controller;

[0016] The booster pump is arranged between the water inlet valve and the reverse osmosis filter element, the third drive branch is electrically connected to the booster pump and the controller respectively, and the third drive branch is configured to drive the booster pump to operate upon receiving a fourth drive signal output by the controller.

[0017] In one or more embodiments, the water purification system further comprises:

[0018] a first detection module, provided at an output end of the pre-filtration branch, electrically connected to the controller, and configured to output a first detection signal to the controller based on the total dissolved solids value of the pure water, so that the controller determines the total dissolved solids value of the pure water;

[0019] a second detection module, provided at an output end of the at least one mineralization branch, electrically connected to the controller, and configured to output a second detection signal to the controller based on the temperature value of the mineralized water, so that the controller determines the temperature value of the mineralized water;

[0020] The third detection module is provided at the output end of the at least one mineralization branch, is electrically connected to the controller, and is configured to output a third detection signal to the controller based on the total amount of soluble solids in the mineralized water, so that the controller determines the total amount of soluble solids in the mineralized water.

[0021] In one or more embodiments, the second driving branch includes a first resistor, a second resistor, a first switch tube and a first diode;

[0022] The first resistor and the second resistor are electrically connected in series between the first end of the first switching tube and the ground. The connection point between the first resistor and the second resistor is electrically connected to the controller. The second end of the first switching tube is grounded. The third end of the first switching tube is electrically connected to the first end of the water inlet valve and the anode of the first diode respectively. The cathode of the first diode and the second end of the water inlet valve are both electrically connected to the first power supply.

[0023] In one or more embodiments, the third driving branch includes a third resistor, a fourth resistor, a fifth resistor, a sixth resistor, a seventh resistor, an eighth resistor, a second diode, a second switch tube, and a third switch tube;

[0024] The third resistor and the fourth resistor are electrically connected in series between the first end of the second switching tube and the ground. The connection point between the third resistor and the fourth resistor is electrically connected to the controller. The second end of the second switching tube is grounded. The third end of the second switching tube is electrically connected to the first power supply through the fifth resistor and the sixth resistor. The connection point between the fifth resistor and the sixth resistor is electrically connected to the first end of the third switching tube. The third end of the third switching tube is electrically connected to the first power supply. The second end of the third switching tube is electrically connected to the first end of the boost pump and the cathode of the second diode, respectively. The anode of the second diode is electrically connected to the second end of the boost pump, the first end of the seventh resistor, and the first end of the eighth resistor, respectively. The second end of the seventh resistor is grounded, and the second end of the eighth resistor is electrically connected to the controller.

[0025] In one or more embodiments, the first detection module includes a first total dissolved solids probe, a ninth resistor, a tenth resistor, and an eleventh resistor;

[0026] The first end of the first total dissolved solids probe is electrically connected to the controller through the ninth resistor, the second end of the first total dissolved solids probe is electrically connected to the controller through the tenth resistor, and the second end of the first total dissolved solids probe is also electrically connected to the controller through the eleventh resistor.

[0027] In one or more embodiments, the second detection module includes a thermistor, a twelfth resistor, and a thirteenth resistor;

[0028] The thermistor and the twelfth resistor are electrically connected in series between a second power supply and ground, and a connection point between the thermistor and the twelfth resistor is electrically connected to the controller through the thirteenth resistor.

[0029] In one or more embodiments, the third detection module includes a second total dissolved solids probe, a fourteenth resistor, a fifteenth resistor, and a sixteenth resistor.

[0030] The first end of the second total dissolved solids probe is electrically connected to the controller through the fourteenth resistor, the second end of the second total dissolved solids probe is electrically connected to the controller through the fifteenth resistor, and the second end of the second total dissolved solids probe is also electrically connected to the controller through the sixteenth resistor.

[0031] In a second aspect, an embodiment of the present application provides a water purification device, including the water purification system as described above.

[0032] The present application has the following beneficial effects: The water purification system of the present application embodiment includes a pre-filtration branch, at least one mineralization branch, a pure water branch, a controller, and a first drive branch. The pre-filtration branch filters raw water and outputs pure water. The mineralization branch performs mineralization filtering on the pure water and outputs mineralized water. The pure water branch outputs the pure water to the mineralized water to adjust the total dissolved solids content of the mineralized water. The controller outputs a first drive signal and a second drive signal to the first drive branch. The mineralization branch includes a mineralization proportional valve and a mineralization filter element. The first drive branch drives the mineralization proportional valve to open to a first preset opening in response to the first drive signal. The pure water branch includes a pure water proportional valve. The first drive branch also drives the pure water proportional valve to open to a second preset opening in response to the second drive signal. Through the above process, the desired TDS value can be achieved by controlling each proportional valve. Moreover, by providing the mineralization branch and the pure water branch, the TDS value can be increased or decreased, making it applicable to a wide range of application scenarios and highly practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] One or more embodiments are exemplarily described by the figures in the accompanying drawings, which are not intended to limit the embodiments. Elements with the same reference numerals in the drawings represent similar elements.

[0034] Figure 1 This is a schematic diagram of the composition of the water purification system provided in the embodiment of the present application. Figure 1 ;

[0035] Figure 2This is a schematic diagram of the composition of the water purification system provided in the embodiment of the present application. Figure 2 ;

[0036] Figure 3 This is a schematic diagram of the composition of the water purification system provided in the embodiment of the present application. Figure 3 ;

[0037] Figure 4 This is a schematic diagram of the composition of the water purification system provided in the embodiment of the present application. Figure 4 ;

[0038] Figure 5 is a schematic diagram of the circuit structure of the second driving branch provided in an embodiment of the present application;

[0039] Figure 6 is a schematic diagram of the circuit structure of the third driving branch provided in an embodiment of the present application;

[0040] Figure 7 Schematic diagram of the circuit structure of the first detection module provided in an embodiment of the present application;

[0041] Figure 8 Schematic diagram of the circuit structure of the second detection module provided in an embodiment of the present application;

[0042] Figure 9 Schematic diagram of the circuit structure of the third detection module provided in an embodiment of the present application;

[0043] Figure 10 is a schematic diagram of the circuit structure of the first driving branch provided in an embodiment of the present application;

[0044] Figure 11 Schematic diagram of the circuit structure of the power conversion branch provided in an embodiment of the present application. DETAILED DESCRIPTION

[0045] To make the objectives, technical solutions, and advantages of the embodiments of the present application more clear, the technical solutions in the embodiments of the present application will be described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present application, not all of them. It should be understood that the specific embodiments described herein are only used to explain the present application and are not intended to limit the present application.

[0046] It should be noted that, when an element is described as being “electrically connected to” another element, it may be directly electrically connected to the other element, or one or more intervening elements may exist therebetween.

[0047] In addition, the technical features involved in the various embodiments of the present application described below can be combined with each other as long as there is no structural conflict between them.

[0048] Please refer to Figure 1 , Figure 1 This is a schematic diagram of the structure of the water purification system provided in the embodiment of the present application. Figure 1 As shown, the water purification system includes a pre-filtration branch 101 , at least one mineralization branch, a controller 102 , a first drive branch 103 and a pure water branch 104 .

[0049] The pre-filter branch 101 receives raw water, which is the water source before entering the water treatment facility. The pre-filter branch 101 is configured to filter the raw water and output pure water, which is a water source that can be directly consumed.

[0050] At least one mineralization branch includes a first mineralization branch A1, a second mineralization branch A2, ..., and an Nth mineralization branch AN. The first mineralization branch A1, the second mineralization branch A2, ..., and the Nth mineralization branch AN all input pure water. The first mineralization branch A1, the second mineralization branch A2, ..., and the Nth mineralization branch AN are configured to mineralize and filter the pure water and then output mineralized water. Mineralized water refers to water containing minerals and trace elements, which may be naturally occurring or artificially added. Wherein, N is an integer greater than or equal to 1. When N is greater than 1, the mineralized filter elements in different mineralization branches are different, that is, the mineralized filter elements in the first mineralization branch A1, the second mineralization branch A2, ..., and the Nth mineralization branch AN are different. For example, in some embodiments, N=3, the mineralized filter element in the first mineralized branch A1 is a strontium filter element, the mineralized filter element in the second mineralized branch A2 is a selenium filter element, and the mineralized filter element in the Nth mineralized branch AN is a metasilicic acid filter element. The mineralized filter element is a special water treatment filter element whose primary function is to purify water while adding minerals and trace elements beneficial to the human body.

[0051] Each mineralization branch includes a mineralization proportional valve and a mineralization filter element. Specifically, the first mineralization branch A1 includes a first mineralization proportional valve B1 and a first mineralization filter element C1; the second mineralization branch A2 includes a second mineralization proportional valve B2 and a second mineralization filter element C2; and the Nth mineralization branch AN includes an Nth mineralization proportional valve BN and an Nth mineralization filter element CN. The mineralization proportional valve is located between the pre-filtration branch and the mineralization filter element. The first drive branch 103 is electrically connected to the controller and the mineralization proportional valve, respectively. That is, the first mineralized proportional valve B1 is arranged between the pre-filter branch 101 and the first mineralized filter element C1, and the first drive branch 103 is electrically connected to the controller 102 and the first mineralized proportional valve B1 respectively; the second mineralized proportional valve B2 is arranged between the pre-filter branch 101 and the second mineralized filter element C2, and the first drive branch 103 is electrically connected to the controller 102 and the second mineralized proportional valve B2 respectively; ...; the Nth mineralized proportional valve BN is arranged between the pre-filter branch 101 and the Nth mineralized filter element CN, and the first drive branch 103 is electrically connected to the controller 102 and the Nth mineralized proportional valve BN respectively.

[0052] The first drive branch 103 is configured to drive the mineralization proportional valve to open the valve according to a first preset opening in response to the first drive signal, wherein the first preset opening is determined by the first drive signal. The first preset opening is a preset opening, which can be set based on the actual application scenario and determined by the first drive signal. The opening of the proportional valve refers to the degree to which the proportional valve is opened, and is generally used to control the flow of a fluid (liquid or gas) through a pipeline. Specifically, the first drive signal includes a first drive sub-signal, a second drive sub-signal, ..., and an Nth drive sub-signal. The first preset opening includes a first sub-opening, a second sub-opening, ..., and an Nth sub-opening, and any two openings of the first sub-opening, the second sub-opening, ..., and the Nth sub-opening can be the same or different. The first drive branch 103 drives the first mineralized proportional valve B1 to open the valve according to the first sub-opening degree in response to the first drive sub-signal; the first drive branch 103 drives the second mineralized proportional valve B2 to open the valve according to the second sub-opening degree in response to the second drive sub-signal; ...; the first drive branch 103 drives the Nth mineralized proportional valve BN to open the valve according to the Nth sub-opening degree in response to the Nth drive sub-signal.

[0053] The pure water branch 104 inputs pure water and is configured to output pure water to mineralized water to adjust the total dissolved solids value (ie, TDS value) of the mineralized water.

[0054] The pure water branch 104 includes a pure water proportional valve 1041. The first drive branch 103 is also electrically connected to the pure water proportional valve 1041. The first drive branch 103 is further configured to drive the pure water proportional valve 1041 to open according to a second preset opening in response to a second drive signal, wherein the second preset opening is determined by the second drive signal. The second preset opening is a pre-set opening that can be set based on actual application scenarios and is determined by the second drive signal.

[0055] As we all know, functional waters like tea and coffee are sensitive to TDS levels. To achieve optimal taste, they typically require an appropriate TDS level. For example, the TDS level for tea brewing typically ranges from 50 to 200 mg / L, and different teas, such as green tea and black tea, have different TDS levels. Similarly, in coffee, different TDS levels also affect the extraction rate.

[0056] Related technologies adjust TDS values ​​by directly mixing raw water with purified water. However, this method can only reduce the TDS value of the raw water, which is limited and difficult to meet the needs of different application scenarios, resulting in poor practicality. For example, if the TDS value of the raw water is already lower than the required TDS value, the related technology solution will not be able to achieve the required TDS value.

[0057] In the embodiments of the present application, by configuring the openings of the various proportional valves (including the first mineralization proportional valve B1, the second mineralization proportional valve B2, ..., the Nth mineralization proportional valve BN, and the pure water proportional valve 1041), the TDS value can be increased or decreased, thereby achieving the desired TDS value. This allows the desired TDS value to be achieved regardless of whether the raw water's TDS value is less than or greater than the desired TDS value, thus meeting the needs of various application scenarios (e.g., tea and coffee brewing), demonstrating its high practicality.

[0058] In one embodiment, if Figure 2 As shown, the pre-filtration branch 101 includes a polypropylene filter element 1011, an upward flow granular activated carbon filter element 1012, a compressed activated carbon filter element 1013 and a reverse osmosis filter element 1014 which are arranged in sequence.

[0059] Among them, the polypropylene filter (PP filter) 1011 is used to remove large particles of impurities in the water, such as mud, rust, etc. The upstream downstream granular activated carbon filter (UDF filter) 1012 is used to adsorb harmful substances such as residual chlorine, odor, organic matter, etc. in the water to improve the taste of the water. The compressed activated carbon filter (CTO filter) 1012 is used to remove discoloration, odor, and heavy metals in the water, and has a certain antibacterial effect. The reverse osmosis (RO) filter 1014 is used to remove dissolved solids and other particles in the water, including bacteria, viruses and some organic compounds. The reverse osmosis filter 1014 uses reverse osmosis technology. Reverse osmosis technology is based on the selective permeability of a semipermeable membrane. When sufficient pressure is applied to water containing dissolved substances, water molecules can pass through the membrane while dissolved solids are blocked. Thus, the raw water can be formed into pure water after being filtered by the polypropylene filter element 1011, the upward flow granular activated carbon filter element 1012, the compressed activated carbon filter element 1012 and the reverse osmosis filter element 1014.

[0060] In one embodiment, if Figure 3 As shown, the pre-filtration branch 101 further includes a water inlet valve 1015 and a booster pump 1016 , and the water purification system 100 further includes a second drive branch 105 and a third drive branch 106 .

[0061] The water inlet valve 1015 is disposed between the compressed activated carbon filter element 1013 and the reverse osmosis filter element 1014. The second drive branch 105 is electrically connected to the water inlet valve 1015 and the controller 102, respectively. The second drive branch 105 is configured to drive the water inlet valve 1015 to open upon receiving a third drive signal output by the controller 102. The water inlet valve 1015 is a valve used to control the flow of water into the subsequent system. When the water inlet valve 1015 is open, water can flow into the subsequent system (i.e., into the booster pump 1016); conversely, when the water inlet valve 1015 is closed, water cannot flow into the subsequent system.

[0062] Booster pump 1016 is disposed between inlet valve 1015 and reverse osmosis filter element 1014. Third drive branch 106 is electrically connected to booster pump 1016 and controller 102, respectively. Third drive branch 106 is configured to drive booster pump 1016 upon receiving a fourth drive signal from controller 102. Booster pump 1016 is a device used to increase the pressure of a fluid (typically water or other liquid).

[0063] In one embodiment, if Figure 4 As shown, the water purification system 100 further includes a first detection module 107 , a second detection module 108 and a third detection module 109 .

[0064] The first detection module 107 is provided at the output end of the pre-filtration branch 101. The first detection module 107 is electrically connected to the controller 102 and is configured to output a first detection signal to the controller 102 based on the total dissolved solids value of the pure water, so that the controller 102 can determine the total dissolved solids value of the pure water.

[0065] A second detection module 108 is provided at the output of at least one mineralization branch. It is electrically connected to the controller 102 and configured to output a second detection signal to the controller 102 based on the temperature of the mineralized water, enabling the controller 102 to determine the temperature of the mineralized water. Because the detection signal corresponding to the TDS value varies for the same water quality at different temperatures, determining the temperature of the mineralized water allows for TDS compensation to improve TDS reading accuracy.

[0066] A third detection module 109 is provided at the output of at least one of the mineralization branches. The third detection module 109 is electrically connected to the controller 102 and is configured to output a third detection signal to the controller 102 based on the total dissolved solids value of the mineralized water, so that the controller 102 can determine the total dissolved solids value of the mineralized water.

[0067] Please refer to Figure 5 , Figure 5 FIG. 1 shows an exemplary circuit structure of the second driving branch. Figure 5As shown, the second driving branch 105 includes a first resistor R1 , a second resistor R2 , a first switch Q1 , and a first diode D1 .

[0068] Among them, the first resistor R1 and the second resistor R2 are electrically connected in series between the first end of the first switch tube Q1 and the ground GND, the connection point between the first resistor R1 and the second resistor R2 is electrically connected to the controller 102, the second end of the first switch tube Q1 is grounded GND, the third end of the first switch tube Q1 is electrically connected to the first end of the water inlet valve 1015 and the anode of the first diode D1, respectively, and the cathode of the first diode D1 and the second end of the water inlet valve 1015 are electrically connected to the first power supply VC1.

[0069] Specifically, the first diode D1 is a freewheeling diode. The first resistor R1 is a current-limiting resistor. The first resistor R1 and the second resistor R2 divide the voltage of the signal output by the controller 102 to drive the first switch Q1 to conduct. The second resistor R2 also serves to discharge the discharge when the first switch Q1 is turned off, ensuring that the first switch Q1 is reliably turned off. When the first switch Q1 is turned on, the first power supply VC1 supplies power to the water inlet valve 1015, causing it to open. When the first switch Q1 is turned off, the first power supply VC1 stops supplying power to the water inlet valve 1015, causing it to close.

[0070] Please refer to Figure 6 , Figure 6 Schematically shows a circuit structure of the third driving branch 106. Figure 6 As shown, the third driving branch 106 includes a third resistor R3, a fourth resistor R4, a fifth resistor R5, a sixth resistor R6, a seventh resistor R7, an eighth resistor R8, a second diode D2, a second switch Q2 and a third switch Q3.

[0071] The third resistor R3 and the fourth resistor R4 are electrically connected in series between the first terminal of the second switch Q2 and the ground GND. The connection point between the third resistor R3 and the fourth resistor R4 is electrically connected to the controller 102. The second terminal of the second switch Q2 is connected to the ground GND. The third terminal of the second switch Q2 is electrically connected to the first power supply VC1 via the fifth resistor R5 and the sixth resistor R6. The connection point between the fifth resistor R5 and the sixth resistor R6 is electrically connected to the first terminal of the third switch Q3. The third terminal of the third switch Q3 is electrically connected to the first power supply VC1. The second terminal of the third switch Q3 is electrically connected to the first terminal of the boost pump 1016 and the cathode of the second diode D2, respectively. The anode of the second diode D2 is electrically connected to the second terminal of the boost pump 1016, the first terminal of the seventh resistor R7, and the first terminal of the eighth resistor R8, respectively. The second terminal of the seventh resistor R7 is connected to the ground GND. The second terminal of the eighth resistor R8 is electrically connected to the controller 102.

[0072] Specifically, the second diode D2 is a freewheeling diode. The third resistor R3 is a current-limiting resistor. The third resistor R3 and the fourth resistor R4 divide the voltage of the signal output by the controller 102 to drive the second switch tube Q2 to conduct. The fourth resistor R4 can also discharge the discharge when the second switch tube Q2 is turned off, ensuring that the second switch tube Q2 is reliably turned off. When the second switch tube Q2 is turned on, the first power supply VC1 divides the voltage through the fifth resistor R5 and the sixth resistor R6 to drive the third switch tube Q3 to conduct. The first power supply VC1 supplies power to the boost pump 1016, and the boost pump 1016 operates. When the second switch tube Q2 is turned off, the first power supply VC1 stops dividing the voltage of the fifth resistor R5 and the sixth resistor R6, and the third switch tube Q3 is also turned off, and the boost pump 1016 stops operating. At the same time, the controller 102 obtains the voltage on the seventh resistor R7 to determine the current flowing through the boost pump 1016, so as to determine whether the boost pump 1016 has an abnormality such as overload or stall, and stops the boost pump 1016 when the motor is abnormal.

[0073] Please refer to Figure 7 , Figure 7 FIG. 1 shows an exemplary circuit structure of the first detection module 107. Figure 7 As shown, the first detection module 107 includes a first total dissolved solids probe 1071 , a ninth resistor R9 , a tenth resistor R10 , and an eleventh resistor R11 .

[0074] Among them, the first end of the first total dissolved solids probe 1071 is electrically connected to the controller 102 through the ninth resistor R9, the second end of the first total dissolved solids probe 1071 is electrically connected to the controller 102 through the tenth resistor R10, and the second end of the first total dissolved solids probe 1071 is also electrically connected to the controller 102 through the eleventh resistor R11.

[0075] Specifically, a Total Dissolved Solids (TDS) probe is a sensor used to measure the total amount of dissolved solids in water. These solids can be inorganic salts, minerals, metal ions, and other soluble substances. TDS probes indirectly calculate TDS values ​​by measuring the electrical conductivity of water.

[0076] The first detection signal is input to the controller 102 through the eleventh resistor R11. The controller 102 can then determine the TDS value based on the signal at the second end of the first total dissolved solids probe 1071. The controller 102 also outputs two signals, which are respectively input to the first total dissolved solids probe 1071 through the ninth resistor R9 and the tenth resistor R10. The controller 102 outputs two signals to achieve alternating high and low level outputs, which is equivalent to using AC to drive the first total dissolved solids probe 1071, thereby obtaining multiple sets of sampling feedback data (i.e., the first detection signal). The ninth resistor R9, the tenth resistor R10, and the eleventh resistor R11 act as voltage dividers, current limiters, and anti-interference agents.

[0077] Please refer to Figure 8 , Figure 8 Schematic diagram of a circuit structure of the second detection module 108. Figure 8 As shown, the second detection module 108 includes a thermistor 1081 , a twelfth resistor R12 and a thirteenth resistor R13 .

[0078] The thermistor 1081 and the twelfth resistor R12 are electrically connected in series between the second power supply VC2 and the ground GND. The connection point between the thermistor 1081 and the twelfth resistor R12 is electrically connected to the controller 102 via the thirteenth resistor R13.

[0079] Specifically, a thermistor is a special type of resistor whose resistance changes with temperature. Based on how their resistance changes with temperature, thermistors can be divided into two categories: positive temperature coefficient thermistors (PTC thermistors) and negative temperature coefficient thermistors (NTC thermistors). PTC thermistors increase their resistance as temperature rises, while NTC thermistors decrease their resistance as temperature rises.

[0080] The thermistor 1081 and the thirteenth resistor R13 form a voltage divider for the second power supply VC2, and the voltage divider of the second power supply VC2 across the thirteenth resistor R13 (i.e., the second detection signal) is input to the controller 102. The controller 102 can then determine the resistance value of the thermistor 1081 based on the second detection signal, and thereby determine the temperature of the mineralized water.

[0081] Please refer to Figure 9 , Figure 9 Schematically shows a circuit structure of the third detection module 109. Figure 8 As shown, the third detection module 109 includes a second total dissolved solids probe 1091 , a fourteenth resistor R14 , a fifteenth resistor R15 , and a sixteenth resistor R16 .

[0082] Among them, the first end of the second total dissolved solids probe 1091 is electrically connected to the controller 102 through the fourteenth resistor R14, the second end of the second total dissolved solids probe 1091 is electrically connected to the controller 102 through the fifteenth resistor R15, and the second end of the second total dissolved solids probe 1091 is also electrically connected to the controller 102 through the sixteenth resistor R16.

[0083] The third detection signal is input to the controller 102 via the sixteenth resistor R16. The controller 102 can then determine the TDS value based on the signal at the second terminal of the second total dissolved solids probe 1091. The controller 102 also outputs two signals, which are respectively input to the second total dissolved solids probe 1091 via the fourteenth resistor R14 and the fifteenth resistor R15. The controller 102 outputs two signals to achieve alternating high and low level outputs, which is equivalent to using AC to drive the second total dissolved solids probe 1091, thereby obtaining multiple sets of sampling feedback data (i.e., the third detection signal). The fourteenth resistor R14, the fifteenth resistor R15, and the sixteenth resistor R16 act as voltage dividers, current limiters, and anti-interference devices.

[0084] Please refer to Figure 10 , Figure 10 The circuit structure of the first driving branch 103 is shown as an example. This embodiment takes the first driving branch 103 driving the first mineralization branch B1 and the pure water proportional valve 1041 as an example. Figure 10 As shown, the first driving branch 103 includes a driver U1 and a first capacitor C1. Driver U1 includes a power supply terminal, a ground terminal, a first input terminal in1, a second input terminal in2, a third input terminal in3, a fourth input terminal in4, a fifth input terminal in5, a sixth input terminal in6, a seventh input terminal in7, an eighth input terminal in8, a first output terminal out1, a second output terminal out2, a third output terminal out3, a fourth output terminal out4, a fifth output terminal out5, a sixth output terminal out6, a seventh output terminal out7, and an eighth output terminal out8. The first capacitor C1 is electrically connected between the power supply terminal and the ground terminal of the driver U1.

[0085] Specifically, the first capacitor C1 is used for filtering. The controller 102 outputs signals to the first input terminal in1, the second input terminal in2, the third input terminal in3, and the fourth input terminal in4. Subsequently, the first output terminal out1, the second output terminal out2, the third output terminal out3, and the fourth output terminal out4 output corresponding steps to drive the first mineralization proportional valve B1 to open the valve according to the first sub-opening degree. In this embodiment, the first mineralization proportional valve B1 includes a stepper motor, and the stepper motor is controlled by the step counts output by the first output terminal out1, the second output terminal out2, the third output terminal out3, and the fourth output terminal out4.

[0086] The controller 102 outputs signals to the fifth input terminal in5, the sixth input terminal in6, the seventh input terminal in7, and the eighth input terminal in8. Subsequently, the fifth output terminal out5, the sixth output terminal out6, the seventh output terminal out7, and the eighth output terminal out8 output corresponding step numbers, thereby driving the pure water proportional valve 1041 to open the valve to the second predetermined opening. In this embodiment, the pure water proportional valve 1041 includes a stepper motor, and the step number output from the fifth output terminal out5, the sixth output terminal out6, the seventh output terminal out7, and the eighth output terminal out8 controls the stepper motor.

[0087] In one embodiment, the water purification system 100 further includes a power conversion branch 110. The power conversion branch 110 is used to convert the first power supply VC1 into the second power supply VC2. For example, the voltage of the first power supply VC1 is 24V, and the voltage of the second power supply VC2 is 5V.

[0088] Please refer to Figure 11 , Figure 11 Schematic diagram of the circuit structure of the power conversion branch 110 provided in the embodiment of the present application. Figure 11 As shown, the power conversion branch 110 includes a second capacitor C2, a third capacitor C3, a fourth capacitor C4, a fifth capacitor C5, a third diode D3, a first inductor L1 and a low dropout linear regulator U2.

[0089] Among them, the second capacitor C2 is electrically connected between the first power supply VC1 and the ground GND, the third capacitor C3 is connected in parallel with the second capacitor C2, the input end of the low-voltage difference linear regulator U2 is input with the first power supply VC1, the ground end of the low-voltage difference linear regulator U2 is grounded GND, the output end of the low-voltage difference linear regulator U2 is connected to the cathode of the third diode D3, the anode of the third diode D3 is grounded GND, the first inductor L1 is electrically connected between the output end of the low-voltage difference linear regulator U2 and the first end of the fourth capacitor C4, the second end of the fourth capacitor C4 is grounded GND, the fifth capacitor C5 is connected in parallel with the fourth capacitor C4, and the feedback end of the low-voltage difference linear regulator U2 is electrically connected to the first end of the fourth capacitor C4.

[0090] Specifically, the second capacitor C2 and the third capacitor C3 are used for filtering. The first inductor L1, the fourth capacitor C4, and the fifth capacitor C5 are also used for filtering. The third diode D3 is used for freewheeling. The low-voltage dropout linear regulator U2 can provide a precise and stable second power supply VC2 based on the first power supply VC1. Specifically, the low-voltage dropout linear regulator U2 regulates the output voltage through a linear amplifier (usually a transistor or a field-effect transistor FET) to keep it at a stable level.

[0091] An embodiment of the present application further provides a water purification device, which includes the water purification system 100 in any embodiment of the present application.

[0092] The above description is merely an embodiment of the present application and does not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present application.

[0093] The above embodiments are only used to illustrate the technical solutions of the present application, and are not intended to limit them. Based on the concept of the present application, the technical features in the above embodiments or different embodiments may be combined, and the steps may be implemented in any order. A person skilled in the art should understand that the technical solutions described in the above embodiments may be modified, or some of the technical features may be replaced by equivalents. However, such modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A water purification system, characterized in that: include: The pre-filtration branch receives raw water and is configured to filter the raw water and then output pure water; at least one mineralization branch, inputting the pure water and configured to perform mineralization filtering on the pure water and then output mineralized water; a pure water branch, inputting the pure water and configured to output the pure water to the mineralized water to adjust the total dissolved solids value of the mineralized water; A controller and a first driving branch, wherein the controller is configured to output a first driving signal and a second driving signal to the first driving branch; The mineralized branch includes a mineralized proportional valve and a mineralized filter element, the mineralized proportional valve is arranged between the pre-filter branch and the mineralized filter element, the first drive branch is electrically connected to the controller and the mineralized proportional valve respectively, and when the at least one mineralized branch includes multiple mineralized branches, the mineralized filter elements in different mineralized branches are different; The first driving branch is configured to drive the mineralization proportional valve to open the valve according to a first preset opening in response to the first driving signal, wherein the first preset opening is determined by the first driving signal; The pure water branch includes a pure water proportional valve, and the first drive branch is also electrically connected to the pure water proportional valve. The first drive branch is also configured to drive the pure water proportional valve to open the valve according to a second preset opening in response to the second drive signal, wherein the second preset opening is determined by the second drive signal.

2. The water purification system according to claim 1, characterized in that: The pre-filtration branch includes a polypropylene filter element, an upward flow granular activated carbon filter element, a compressed activated carbon filter element and a reverse osmosis filter element arranged in sequence, wherein the raw water is filtered through the polypropylene filter element, the upward flow granular activated carbon filter element, the compressed activated carbon filter element and the reverse osmosis filter element to form the pure water.

3. The water purification system according to claim 2, characterized in that: The pre-filtration branch further includes a water inlet valve and a booster pump, and the water purification system further includes a second drive branch and a third drive branch; The water inlet valve is provided between the compressed activated carbon filter element and the reverse osmosis filter element, the second drive branch is electrically connected to the water inlet valve and the controller respectively, and the second drive branch is configured to drive the water inlet valve to open upon receiving a third drive signal output by the controller; The booster pump is arranged between the water inlet valve and the reverse osmosis filter element, the third drive branch is electrically connected to the booster pump and the controller respectively, and the third drive branch is configured to drive the booster pump to operate upon receiving a fourth drive signal output by the controller.

4. The water purification system according to claim 1, characterized in that: The water purification system further comprises: a first detection module, provided at an output end of the pre-filtration branch, electrically connected to the controller, and configured to output a first detection signal to the controller based on the total dissolved solids value of the pure water, so that the controller determines the total dissolved solids value of the pure water; a second detection module, provided at an output end of the at least one mineralization branch, electrically connected to the controller, and configured to output a second detection signal to the controller based on the temperature value of the mineralized water, so that the controller determines the temperature value of the mineralized water; The third detection module is provided at the output end of the at least one mineralization branch, is electrically connected to the controller, and is configured to output a third detection signal to the controller based on the total amount of soluble solids in the mineralized water, so that the controller determines the total amount of soluble solids in the mineralized water.

5. The water purification system according to claim 3, characterized in that: The second driving branch includes a first resistor, a second resistor, a first switch tube and a first diode; The first resistor and the second resistor are electrically connected in series between the first end of the first switching tube and the ground. The connection point between the first resistor and the second resistor is electrically connected to the controller. The second end of the first switching tube is grounded. The third end of the first switching tube is electrically connected to the first end of the water inlet valve and the anode of the first diode respectively. The cathode of the first diode and the second end of the water inlet valve are both electrically connected to the first power supply.

6. The water purification system according to claim 3, characterized in that: The third driving branch includes a third resistor, a fourth resistor, a fifth resistor, a sixth resistor, a seventh resistor, an eighth resistor, a second diode, a second switch tube and a third switch tube; The third resistor and the fourth resistor are electrically connected in series between the first end of the second switching tube and the ground. The connection point between the third resistor and the fourth resistor is electrically connected to the controller. The second end of the second switching tube is grounded. The third end of the second switching tube is electrically connected to the first power supply through the fifth resistor and the sixth resistor. The connection point between the fifth resistor and the sixth resistor is electrically connected to the first end of the third switching tube. The third end of the third switching tube is electrically connected to the first power supply. The second end of the third switching tube is electrically connected to the first end of the boost pump and the cathode of the second diode, respectively. The anode of the second diode is electrically connected to the second end of the boost pump, the first end of the seventh resistor, and the first end of the eighth resistor, respectively. The second end of the seventh resistor is grounded, and the second end of the eighth resistor is electrically connected to the controller.

7. The water purification system according to claim 4, characterized in that: The first detection module includes a first total dissolved solids probe, a ninth resistor, a tenth resistor, and an eleventh resistor; The first end of the first total dissolved solids probe is electrically connected to the controller through the ninth resistor, the second end of the first total dissolved solids probe is electrically connected to the controller through the tenth resistor, and the second end of the first total dissolved solids probe is also electrically connected to the controller through the eleventh resistor.

8. The water purification system according to claim 4, characterized in that: The second detection module includes a thermistor, a twelfth resistor and a thirteenth resistor; The thermistor and the twelfth resistor are electrically connected in series between a second power supply and ground, and a connection point between the thermistor and the twelfth resistor is electrically connected to the controller through the thirteenth resistor.

9. The water purification system according to claim 4, characterized in that: The third detection module includes a second total dissolved solids probe, a fourteenth resistor, a fifteenth resistor, and a sixteenth resistor. The first end of the second total dissolved solids probe is electrically connected to the controller through the fourteenth resistor, the second end of the second total dissolved solids probe is electrically connected to the controller through the fifteenth resistor, and the second end of the second total dissolved solids probe is also electrically connected to the controller through the sixteenth resistor.

10. A water purification device, characterized in that: Comprising a water purification system as described in any one of claims 1-9.

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