Water purification equipment control circuit and water purification equipment

Abstract

The utility model relates to a water purification equipment control circuit and water purification equipment. The water purification equipment control circuit comprises a mainboard circuit and a detachably connected adapter plate circuit, the mainboard circuit is connected with an ultrafiltration module of the water purification equipment, and the adapter plate circuit is connected with a reverse osmosis module; wherein the mainboard circuit comprises a mainboard chip, a mainboard pressure detection circuit and a mainboard water valve control circuit; the mainboard pressure detection circuit is respectively connected with the mainboard chip and the ultrafiltration pressure detection piece, and the mainboard pressure detection circuit is used for sending a pressure signal collected by the ultrafiltration pressure detection piece to the mainboard chip; the main board pulse regulating valve control circuit is respectively connected with the main board chip and the pulse regulating valve; and the pulse regulating valve control circuit is used for controlling the opening degree of the pulse regulating valve according to the driving signal of the main board chip. According to the utility model, the control circuits for controlling the ultrafiltration module and the reverse osmosis module in the control circuit of the water purification equipment are separated, so that the flexibility is good; and for complex water purification equipment control, the reliability is high.

Description

Technical Field

[0001] The present application relates to the technical field of control circuits, and in particular to a water purification equipment control circuit and a water purification equipment. Background Art

[0002] Water treatment refers to the process of removing or reducing impurities, pollutants and harmful substances in water through a series of physical, chemical or biological methods to make the water cleaner, safer and more suitable for human use.

[0003] At present, RO and ultrafiltration technologies are often used in combination in water purification equipment to achieve a more comprehensive water purification effect. For example, ultrafiltration membranes are first used to remove large particles and microorganisms, and then RO membranes are used to remove soluble salts and organic matter to obtain high-purity purified water. However, in actual applications, it is found that the taste of high-purity purified water when making beverages is not as good as the taste of water containing certain soluble mineral elements. Therefore, there is an urgent need to provide a water purification device that can ensure the purity of the water while taking into account the taste of the beverage after making it. The traditional water purifier control circuit connection is complex, and it is very inconvenient to troubleshoot when a fault occurs, which makes the reliability of the water purification equipment low. Utility Model Content

[0004] Based on this, it is necessary to provide a water purification equipment control circuit and water purification equipment with simple connection and high reliability.

[0005] In a first aspect, the present application provides a water purification equipment control circuit, including a main board circuit and a detachably connected adapter board circuit, the main board circuit is connected to an ultrafiltration module of the water purification equipment, and when the water purification equipment includes a reverse osmosis module, the adapter board circuit is connected to the reverse osmosis module; wherein the main board circuit includes:

[0006] Motherboard chip;

[0007] The mainboard pressure detection circuit is connected to the mainboard chip and the ultrafiltration pressure detection element respectively, and the mainboard pressure detection circuit is used to send the pressure signal collected by the ultrafiltration pressure detection element to the mainboard chip;

[0008] The mainboard pulse regulating valve control circuit is connected to the mainboard chip and the pulse regulating valve respectively. The pulse regulating valve control circuit is used to control the opening and closing degree of the pulse regulating valve according to the driving signal of the mainboard chip.

[0009] In one embodiment, the mainboard pulse regulating valve control circuit includes:

[0010] The mainboard isolation subcircuit is connected to the mainboard chip and is used to obtain a driving signal for driving the pulse regulating valve according to a control signal of the mainboard chip;

[0011] The mainboard conduction subcircuit is connected to the mainboard isolation subcircuit and the pulse regulating valve respectively, and is used to control the opening and closing degree of the pulse regulating valve according to the driving signal.

[0012] In one embodiment, the mainboard isolation sub-circuit includes a mainboard optocoupler and a resistor, the first end of the mainboard optocoupler is connected to the mainboard chip through the resistor, the second end of the mainboard optocoupler is used to connect to the power supply, the third end of the mainboard optocoupler is connected to the mainboard conduction sub-circuit, and the fourth end of the mainboard optocoupler is grounded.

[0013] In one embodiment, the mainboard conduction subcircuit includes a MOS tube, which is used to implement switch control of the load according to the driving signal of the mainboard chip, the gate of the MOS tube is used to be connected to the mainboard isolation subcircuit, the drain of the MOS tube is used to be connected to the power supply, and the source of the MOS tube is used to be grounded.

[0014] In one embodiment, the adapter board circuit includes:

[0015] Adapter chip;

[0016] The adapter board pressure detection circuit is connected to the adapter board chip and the reverse osmosis pressure detection element respectively, and the adapter board pressure detection circuit is used to send the pressure signal collected by the reverse osmosis pressure detection element to the adapter board chip;

[0017] The adapter board water valve control circuit is connected to the adapter board chip and the reverse osmosis water valve respectively. The reverse osmosis water valve control circuit is used to control the conduction or cutoff of the reverse osmosis water valve according to the driving signal of the adapter board chip.

[0018] In one embodiment, the adapter board circuit further includes:

[0019] The TDS detection circuit is connected to the adapter board chip and the TDS detection component respectively. The TDS detection circuit is used to feed back the TDS probe signal collected by the TDS detection component to the main board chip, so that the main board chip adjusts the opening and closing degree of the pulse regulating valve according to the received signal.

[0020] In one embodiment, the adapter plate water valve control circuit includes:

[0021] The adapter board isolation subcircuit is connected to the adapter board chip and is used to obtain a driving signal for driving the reverse osmosis water valve according to the control signal of the adapter board chip;

[0022] The adapter board conduction subcircuit is connected to the adapter board isolation subcircuit and the reverse osmosis water valve respectively, and is used to control the conduction or cutoff of the reverse osmosis water valve according to the driving signal.

[0023] In one embodiment, the circuit also includes a water storage circuit, which is provided separately, or provided in the main board circuit, or provided in the adapter board circuit; the water storage circuit is used to connect with the main board circuit and / or the adapter board circuit to control the opening or closing of the water storage pump according to the control signal of the main board chip and / or the adapter board chip.

[0024] In one of the embodiments, the mainboard circuit also includes a communication circuit, which is connected to an external device and is used to realize data interaction between the water purification device and the external device.

[0025] In a second aspect, the present application first provides a water purification device, including a water purification device control circuit provided according to the above-mentioned first aspect.

[0026] The above-mentioned water purification equipment control circuit and water purification equipment include a mainboard circuit and a detachably connected adapter board circuit in the water purification equipment control circuit, the mainboard circuit is connected to the ultrafiltration module of the water purification equipment, and when the water purification equipment includes a reverse osmosis module, the adapter board circuit is connected to the reverse osmosis module; wherein the mainboard circuit includes a mainboard chip, a mainboard pressure detection circuit and a mainboard pulse regulating valve control circuit; the mainboard pressure detection circuit is respectively connected to the mainboard chip and the ultrafiltration pressure detection component, and the mainboard pressure detection circuit is used to send the pressure signal collected by the ultrafiltration pressure detection component to the mainboard chip; the mainboard pulse regulating valve control circuit is respectively connected to the mainboard chip and the pulse regulating valve, and the pulse regulating valve control circuit is used to control the opening and closing degree of the pulse regulating valve according to the driving signal of the mainboard chip. The utility model separately designs the control circuits for controlling the ultrafiltration module and the reverse osmosis module in the water purification equipment control circuit, which can be used separately or in combination according to needs, and has good flexibility. When the water purification equipment control circuit fails, it can also be flexibly checked according to needs. In the face of complex water purification equipment control, the control circuit of the utility model is easy for developers to maintain and has strong reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the conventional technology, the drawings required for use in the embodiments or the conventional technology descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0028] Figure 1 This is a schematic diagram of the structure of a water purification equipment control circuit according to an embodiment;

[0029] Figure 2 A schematic diagram of the structure of a water purification device control circuit according to another embodiment;

[0030] Figure 3 A connection diagram of a pressure detection circuit according to an embodiment;

[0031] Figure 4 A connection diagram of a water valve control circuit according to an embodiment;

[0032] Figure 5 A connection diagram of a TDS detection circuit according to an embodiment;

[0033] Figure 6 FIG. 4 is a connection diagram of a communication circuit according to an embodiment of the present invention.

[0034] Description of reference numerals:

[0035] 100. Main board circuit; 200. Adapter board circuit. DETAILED DESCRIPTION

[0036] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0037] In the description of the present application, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, the orientation or position relationship indicated by these terms is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0038] In addition, if the terms "first" or "second" appear, these terms are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this application, if the term "plurality" appears, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0039] In this application, unless otherwise clearly specified and limited, if the terms "installed", "connected", "connected", "fixed" and the like appear, these terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0040] In the present application, unless otherwise clearly specified and limited, if there is a description that a first feature is "above" or "below" a second feature, etc., or similar descriptions appear, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0041] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may also be a centered element. If an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a centered element at the same time. If any, the terms "vertical", "horizontal", "up", "down", "left", "right" and similar expressions used in this application are for illustrative purposes only and are not intended to be the only implementation method. "Inside and outside" refer to the inside and outside of the contour of the corresponding component. "Upstream" and "downstream" are defined for the flow direction of water in the water purification equipment, and "up" and "down" are defined for the height direction of the water purification equipment.

[0042] like Figure 1 As shown, the present application provides a water purification equipment control circuit, including a main board circuit 100 and an adapter board circuit 200, wherein the main board circuit 100 and the adapter board circuit are detachably connected. Specifically, the main board circuit 100 is connected to the ultrafiltration module in the water purification equipment, and is used to control the ultrafiltration module to perform ultrafiltration treatment on the water flowing into the water purification equipment. For example, the ultrafiltration module may include an ultrafiltration filter element. The ultrafiltration membrane in the ultrafiltration filter element can efficiently filter the raw water (water that has just entered the water purification equipment) to obtain ultrafiltered water. After being treated by the ultrafiltration filter element, most of the mud, rust, suspended matter and colloids in the raw water can be filtered out, thereby ensuring the safety of the water quality.

[0043] The adapter board circuit 200 is connected to the reverse osmosis module in the water purification device, and is used to control the reverse osmosis module to perform reverse osmosis treatment on the water flowing into the water purification device. The reverse osmosis module includes a reverse osmosis filter element, and along the direction of water flow, the reverse osmosis filter element can be located downstream of the ultrafiltration filter element. The ultrafiltration water treated by the ultrafiltration filter element can flow into the reverse osmosis filter element for reverse osmosis treatment to obtain pure water.

[0044] It is understandable that the water purification device proposed in this embodiment does not necessarily include a reverse osmosis module, and the water purification device can use an ultrafiltration module alone to achieve water purification. For a water purification environment with high water quality requirements, when the water purification device includes a reverse osmosis module, the adapter board circuit 200 is connected to the reverse osmosis module and to the main board circuit 100, so that the water purification device control circuit can simultaneously achieve ultrafiltration control and reverse osmosis control of the water purification device.

[0045] Combination Figure 2 The schematic diagram of the control circuit of the water purification equipment is shown in the figure. The mainboard circuit 100 mainly includes a mainboard chip, a mainboard pressure detection circuit and a mainboard pulse regulation valve control circuit, wherein the mainboard pressure detection circuit is respectively connected to the mainboard chip and the ultrafiltration pressure detection component, and the mainboard pressure detection circuit is used to send the pressure signal collected by the ultrafiltration pressure detection component to the mainboard chip; the mainboard pulse regulation valve control circuit is respectively connected to the mainboard chip and the pulse regulation valve, and the pulse regulation valve control circuit is used to control the opening and closing degree of the pulse regulation valve according to the driving signal of the mainboard chip.

[0046] Among them, the pressure detection component is a detection component set up upstream and downstream of the filter element. In the ultrafiltration module, ultrafiltration pressure detection components are set up upstream and downstream of the ultrafiltration filter element. The ultrafiltration pressure detection component is used to measure the water pressure upstream and downstream of the ultrafiltration filter element in real time. By comparing the pressure difference of the upstream and downstream water flow of the same filter element, the blockage of the filter element is judged, so that the user can be reminded to clean or update the corresponding filter element in time. Correspondingly, in the reverse osmosis module, the pressure at the front end of the reverse osmosis membrane filter element and the pressure signal value at the rear end are detected by the pressure detection component, and the pressure difference is calculated on the adapter chip, and the blockage of the reverse osmosis membrane filter element is determined by the judgment result of the pressure difference, and the user can be reminded to clean or update the filter element in time.

[0047] In one implementation, the pressure detection circuit is as follows Figure 3 As shown, in Figure 3 In the pressure detection circuit shown, IO16 and IO17 are terminals connected to the mainboard chip, and there is a connection between the pressure detection gauge and the mainboard chip. The pressure detection circuit is used to send the pressure signal collected by the pressure detection gauge to the mainboard chip, so that the mainboard chip performs control operations according to the obtained pressure detection signal.

[0048] It should be noted that the ultrafiltration module includes multiple ultrafiltration chips, so multiple mainboard pressure detection circuits are also provided on the mainboard circuit 100, which are used to respectively connect to different ultrafiltration filter elements. When the pressure detection circuit is used to detect the pressure upstream and downstream of the ultrafiltration filter element, the pressure detection circuit is used to control whether the filter element needs to be replaced. In addition, the pressure detection circuit of this embodiment can also be used in modules such as water leakage detection and water inlet detection to determine whether the water purification equipment has a water leak or whether the water purification equipment is short of water based on the collected water pressure.

[0049] It can be understood that the above-mentioned pressure detection circuit can also adopt other forms, not limited to the forms mentioned in the above embodiments, as long as it can realize the function of sending the pressure signal collected by the pressure detection meter to the active chip.

[0050] The mainboard pulse regulating valve control circuit is a circuit used to control the pulse regulating valve in the ultrafiltration module. Furthermore, a variety of water valves are provided in the ultrafiltration module. Depending on the different locations of the water valves, they may include a one-way valve, a flushing valve, a pressure reducing valve, a regulating valve, etc. Among them, the regulating valve is a water valve used to control the amount of mixed water after purified water according to the opening and closing degree of the water valve, and the one-way valve is a water valve used to control the water flow to achieve one-way flow; the pressure reducing valve is a water valve that regulates the water pressure and stabilizes the water flow; the flushing valve is a water valve used to control the flushing of the filter element to reduce the risk of blockage of the ultrafiltration element, reduce impurities attached to the surface of the ultrafiltration element, and increase the service life of the filter element. The control circuits of various types of water valves are basically similar. The pulse regulating valve is mainly used to control the mixing by adjusting the opening and closing degree of the pulse regulating valve when the ultrafiltration water output by the ultrafiltration module is mixed with the pure water output by the reverse osmosis module.

[0051] In this embodiment, corresponding water valve control circuits are provided for different water valves, which are used to control various types of water valves according to the driving signals of the mainboard chip. Figure 4 The pulse regulating valve control circuit shown can be a mainboard pulse regulating valve control circuit arranged on the mainboard circuit 100. In the figure, IO4 and IO9 are ports connected to the mainboard chip. The pulse regulating valve control circuit includes a mainboard isolation sub-circuit and a mainboard conduction sub-circuit, wherein: the mainboard isolation sub-circuit is connected to the mainboard chip, and is used to obtain a driving signal for driving the pulse regulating valve according to the control signal of the mainboard chip; the mainboard conduction sub-circuit is respectively connected to the mainboard isolation sub-circuit and the pulse regulating valve, and is used to control the opening and closing degree of the pulse regulating valve according to the driving signal.

[0052] Reference Figure 4As shown, in an exemplary embodiment, the mainboard isolation sub-circuit includes a mainboard optocoupler U2 and a resistor, the first end of the mainboard optocoupler U2 is electrically connected to IO9 of the mainboard chip through the resistor, the second end of the mainboard optocoupler U2 is used to connect to a 24V power supply, the third end of the mainboard optocoupler U2 is connected to the mainboard conduction sub-circuit, and the fourth end of the mainboard optocoupler U2 is grounded.

[0053] Still refer to Figure 4 As shown, in another exemplary embodiment, the mainboard conduction subcircuit includes a MOS tube, which is used to realize switch control of the load according to the driving signal of the mainboard chip. As shown in the figure, the MOS tube in the circuit is an NMOS tube Q1, and the gate of the NMOS tube Q1 is used to be connected to the mainboard isolation subcircuit, the drain of the NMOS tube Q1 is connected to the power supply through a diode, the source of the NMOS tube Q1 is used to be grounded, and the source of the NMOS tube Q1 is also electrically connected to IO4 of the mainboard chip.

[0054] When working, the isolation subcircuit in the water valve control circuit controls the conduction subcircuit according to the level of the mainboard chip output. For example, when the mainboard chip outputs a high level, the conduction subcircuit is turned on, and when the mainboard chip outputs a low level, the conduction subcircuit is turned off. In this embodiment, an isolation subcircuit is set in the water valve control circuit, and the signal of the mainboard chip is isolated by an optical coupler. The water valve is controlled by the high and low levels output by the mainboard chip, thereby improving the reliability of control.

[0055] It should be noted that the control circuits of different types of water valves in this embodiment are similar overall. Whether it is a one-way valve, a flushing valve, a pressure reducing valve or a regulating valve, the above-mentioned water valve control circuit can be applied, which will not be described in detail here.

[0056] It can be understood that the water valve control circuit can also adopt other forms, not limited to the forms mentioned in the above embodiments, as long as it can achieve the function of completing the opening or closing control of various types of water valves.

[0057] like Figure 2 As shown, in one embodiment, the adapter board circuit 200 includes an adapter board chip, an adapter board pressure detection circuit, and an adapter board water valve control circuit. The adapter board pressure detection circuit is connected to the adapter board chip and the reverse osmosis pressure detection component, respectively, and the adapter board pressure detection circuit is used to send the pressure signal collected by the reverse osmosis pressure detection component to the adapter board chip; the adapter board water valve control circuit is connected to the adapter board chip and the reverse osmosis water valve, respectively, and the reverse osmosis water valve control circuit is used to control the conduction or cutoff of the reverse osmosis water valve according to the drive signal of the adapter board chip.

[0058] In a further embodiment, the adapter plate water valve control circuit includes an adapter plate isolation sub-circuit and an adapter plate conduction sub-circuit, wherein the adapter plate isolation sub-circuit is connected to the adapter plate chip, and is used to obtain a driving signal for driving the reverse osmosis water valve according to the control signal of the adapter plate chip; the adapter plate conduction sub-circuit is respectively connected to the adapter plate isolation sub-circuit and the reverse osmosis water valve, and is used to control the conduction or cutoff of the reverse osmosis water valve according to the driving signal.

[0059] It can be understood that the general structure of the adapter board circuit 200 of this embodiment is similar to that of the main board circuit 100, except that the adapter board circuit 200 is connected to the reverse osmosis module in the water purification equipment to realize the control of various components in the reverse osmosis module. Therefore, the connection mode and working mode of the adapter board pressure detection circuit in the adapter board circuit 200 are similar to those of the main board pressure detection circuit proposed above, and the adapter board water valve control circuit in the adapter board circuit 200 is also similar to the main board pulse regulating valve control circuit proposed above, which will not be repeated here.

[0060] In another embodiment, the adapter board circuit 200 also includes a TDS detection circuit, which is respectively connected to the adapter board chip and the TDS detection component. The TDS detection circuit is used to feed back the TDS probe signal collected by the TDS detection component to the main board chip, so that the main board chip adjusts the opening and closing degree of the pulse regulating valve according to the received signal.

[0061] Among them, TDS (Total dissolved solids) is also called the total dissolved solids, which is used to indicate how many milligrams of dissolved solids there are in 1L of water. Generally speaking, the higher the TDS value, the more dissolved substances the water contains, which means the more impurities the water contains. Currently, the high or low TDS value cannot directly indicate the quality of water. On the contrary, studies have found that the purity of water has a greater impact on the taste when preparing beverages.

[0062] The water purification device of this embodiment includes an ultrafiltration module and a reverse osmosis module. The ultrafiltration module is used to filter most of the impurities in the water to improve the safety of the water quality, and the reverse osmosis module is used to filter small particles of impurities in the water to improve the purity of the water. As mentioned above, the water purification device mixes the ultrafiltered water output by the ultrafiltration module with the pure water output by the reverse osmosis module and finally outputs the water purification device to better meet the user's needs for water quality and taste.

[0063] In this embodiment, by setting a TDS detection circuit in the adapter board circuit 200, the mixing of ultrafiltration water output by the ultrafiltration module and pure water output by the reverse osmosis module in the water purification equipment can be controlled according to the detection value of the TDS detector. Figure 5The figure shows the TDS detection circuit of the present embodiment, which includes two TDS detectors, TDS1 and TDS, both of which are connected to the chip IC2. When the deviation between the two TDS detectors is large according to the TDS probe signals detected by the two TDS detection components, the opening and closing degree of the pulse regulating valve of the ultrafiltration module is adjusted to adjust the amount of ultrafiltration water mixed in, while the amount of pure water output by the reverse osmosis module is kept unchanged, thereby changing the TDS value.

[0064] The TDS detection circuit also includes an external interrupt port, which is used to adjust the filter element first when the TDS value deviation is large. The detection process of the TDS detection circuit is interrupted here and re-triggered after the filter element returns to normal.

[0065] It can be understood that the above-mentioned TDS detection circuit can also adopt other forms, and is not limited to the forms mentioned in the above embodiments, as long as it can achieve the function of sending the detection signal of the TDS detector to the adapter board chip.

[0066] In another embodiment, the water purification equipment control circuit also includes a water storage circuit, which is provided separately, or provided in the main board circuit 100, or provided in the adapter board circuit 200; the water storage circuit is used to connect with the main board circuit 100 and / or the adapter board circuit 200 to control the opening or closing of the water storage pump according to the control signal of the main board chip and / or the adapter board chip.

[0067] As mentioned above, the water purification device of this embodiment includes two parts: an ultrafiltration module and a reverse osmosis module. When applied, only the ultrafiltration module can be used, or the ultrafiltration module and the reverse osmosis module can be used in combination. The water storage circuit is connected to the water pump, which is used to extract and store the water purified by the water purification device. Since the water purification device includes two filter modules, the water storage here is set according to the configuration of the filter module in the water purification device. In other words, when the water purification device only has an ultrafiltration module, the water storage circuit only needs to control the water pump to extract the water purified by the ultrafiltration module. When the water purification device includes an ultrafiltration module and a reverse osmosis module, the water storage circuit needs to control the water pump to extract the water from the ultrafiltration module and the reverse osmosis module, or control the water pump to only extract the water from the reverse osmosis module.

[0068] Specifically, the circuit structure of the water storage circuit is similar to the connection method of any of the aforementioned water valve control circuits. The connection method of the circuit will not be repeated here. It should be noted that the difference between the water storage circuit and the water valve control circuit is that the water storage circuit is used to control the water pump during the water storage operation.

[0069] It can be understood that the water storage circuit can also adopt other forms, not limited to the forms mentioned in the above embodiments, as long as it can achieve the function of completing the opening or closing control of the water storage pump.

[0070] like Figure 6As shown, in one embodiment, the mainboard circuit 100 also includes a communication circuit, which is connected to an external device to realize data interaction between the water purification device and the external device.

[0071] Reference Figure 6 The communication circuit is connected to the communication interfaces RX0 and TX0 on the mainboard chip through resistors to realize the communication needs between the water purification equipment and external devices.

[0072] In other exemplary embodiments, the water purification equipment control circuit also includes a buzzer circuit, a flow meter circuit, a watchdog circuit, a power light circuit, a burning circuit, etc.

[0073] The buzzer circuit is connected to the mainboard chip or the adapter chip, and when receiving an abnormal signal sent by the mainboard chip or the adapter chip, an alarm is sounded through the buzzer circuit. The flow meter circuit is used to detect the flow of water and give a prompt when the flow is abnormal. The power light circuit is used to light up the power light when the power is connected to give a prompt, and the burning circuit is used to insert the modified new firmware through the interface of the burning circuit when the control logic of the mainboard chip or the adapter chip needs to be modified.

[0074] It can be understood that this embodiment has no limitation on the connection method of the above peripheral circuits, as long as they can achieve the corresponding functions.

[0075] In one embodiment, a water purification device is provided, comprising a water purification device control circuit provided in any of the above embodiments. The water purification device comprises an ultrafiltration module and a reverse osmosis module which are separately arranged, and water is ultrafiltered by the ultrafiltration module, and water is reversely osmotic treated by the reverse osmosis module. The water purification device of this embodiment can use the ultrafiltration module alone, or can use the ultrafiltration module in combination with the reverse osmosis module. By controlling the water purification device by the water purification device control circuit, different water can be obtained according to user needs.

[0076] The water purification equipment of this embodiment sets up the ultrafiltration module and the reverse osmosis module separately and controls them individually, which improves the flexibility of controlling the water purification equipment. When a fault occurs in the control circuit of the water purification equipment, it can also be flexibly checked according to needs. In the face of complex water purification equipment control, the control circuit of the utility model is easy for developers to maintain and has strong reliability.

[0077] In the description of this specification, the description with reference to the terms "some embodiments", "other embodiments", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic description of the above terms does not necessarily refer to the same embodiment or example.

[0078] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0079] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the attached claims.

Claims

1. A water purification equipment control circuit, characterized in that: It includes a main board circuit and a detachably connected adapter board circuit, the main board circuit is connected to an ultrafiltration module of a water purification device, and when the water purification device includes a reverse osmosis module, the adapter board circuit is connected to the reverse osmosis module; wherein the main board circuit includes: Motherboard chip; A mainboard pressure detection circuit is connected to the mainboard chip and the ultrafiltration pressure detection element respectively, and the mainboard pressure detection circuit is used to send the pressure signal collected by the ultrafiltration pressure detection element to the mainboard chip; The mainboard pulse regulating valve control circuit is connected to the mainboard chip and the pulse regulating valve respectively, and the pulse regulating valve control circuit is used to control the opening and closing degree of the pulse regulating valve according to the driving signal of the mainboard chip.

2. The water purification equipment control circuit according to claim 1, characterized in that: The mainboard pulse regulating valve control circuit comprises: A mainboard isolation subcircuit, connected to the mainboard chip, for obtaining a driving signal for driving the pulse regulating valve according to a control signal of the mainboard chip; The mainboard conduction subcircuit is connected to the mainboard isolation subcircuit and the pulse regulating valve respectively, and is used to control the opening and closing degree of the pulse regulating valve according to the driving signal.

3. The water purification equipment control circuit according to claim 2, characterized in that: The mainboard isolation subcircuit includes a mainboard optocoupler and a resistor, the first end of the mainboard optocoupler is connected to the mainboard chip through the resistor, the second end of the mainboard optocoupler is used to connect to the power supply, the third end of the mainboard optocoupler is connected to the mainboard conduction subcircuit, and the fourth end of the mainboard optocoupler is grounded.

4. The water purification equipment control circuit according to claim 3, characterized in that: The mainboard conduction subcircuit includes a MOS tube, which is used to realize switch control of the load according to the driving signal of the mainboard chip, the gate of the MOS tube is used to be connected to the mainboard isolation subcircuit, the drain of the MOS tube is used to be connected to the power supply, and the source of the MOS tube is used to be grounded.

5. The water purification equipment control circuit according to claim 1, characterized in that: The adapter board circuit comprises: Adapter chip; An adapter plate pressure detection circuit is connected to the adapter plate chip and the reverse osmosis pressure detection element, respectively, and the adapter plate pressure detection circuit is used to send the pressure signal collected by the reverse osmosis pressure detection element to the adapter plate chip; The adapter plate water valve control circuit is connected to the adapter plate chip and the reverse osmosis water valve respectively. The reverse osmosis water valve control circuit is used to control the conduction or cutoff of the reverse osmosis water valve according to the driving signal of the adapter plate chip.

6. The water purification equipment control circuit according to claim 5, characterized in that: The adapter board circuit also includes: The TDS detection circuit is connected to the adapter board chip and the TDS detection component respectively. The TDS detection circuit is used to feed back the TDS probe signal collected by the TDS detection component to the main board chip, so that the main board chip adjusts the opening and closing degree of the pulse regulating valve according to the received signal.

7. The water purification equipment control circuit according to claim 5, characterized in that: The adapter plate water valve control circuit comprises: An adapter board isolation subcircuit, connected to the adapter board chip, and used to obtain a driving signal for driving the reverse osmosis water valve according to a control signal of the adapter board chip; The adapter board conduction subcircuit is connected to the adapter board isolation subcircuit and the reverse osmosis water valve respectively, and is used to control the conduction or cutoff of the reverse osmosis water valve according to the driving signal.

8. The water purification equipment control circuit according to claim 5, characterized in that: The circuit further includes a water storage circuit, which is provided separately, or provided in the main board circuit, or provided in the adapter board circuit; The water storage circuit is used to connect to the main board circuit and / or the adapter board circuit to control the opening or closing of the water storage pump according to the control signal of the main board chip and / or the adapter board chip.

9. The water purification equipment control circuit according to claim 5, characterized in that: The mainboard circuit also includes a communication circuit, which is connected to an external device and is used to realize data interaction between the water purification device and the external device.

10. A water purification device, characterized in that: It comprises a water purification equipment control circuit according to any one of claims 1-9.

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