Household tap water quality purification, detoxification and sterilization equipment based on Internet of Things

Abstract

The utility model discloses Internet of Things household tap water quality purification and detoxification sterilization equipment which comprises a shell, and a tap water inlet a, a purified water outlet b, a disinfectant fluid / mineral water outlet g and a waste water outlet d are formed in the side edge of the shell; a single-chip microcomputer control main board, a filter element, an overflowing type O3 generator, a water flow sensor, a water inlet electromagnetic valve, a booster pump, a check valve, a waste water valve and a high-pressure switch are arranged in the device. According to the equipment, a purified water channel, a disinfectant fluid / mineral water channel and a waste water channel are constructed, a TDS value monitoring module, a 4G communication module, a pressure sensing module and other modules are integrated through a single-chip microcomputer control mainboard, and real-time adjustment of the water flow state, water pressure abnormity protection and remote monitoring are achieved. The water purifier has the advantages that impurities are accurately filtered through multiple filter elements, ozone efficient oxidation sterilization and vegetable and fruit pesticide residue degradation are achieved, the Internet of Things function supports APP or WeChat applet remote management, different water demands are met through multi-channel independent control, the equipment safety is guaranteed through intelligent water pressure monitoring, and the water quality is improved. And an optimal kitchen appliance solution for efficient and intelligent water purification, detoxification and sterilization is provided for families.

Description

Technical Field

[0001] This utility model relates to the field of water treatment technology, and more specifically to an Internet of Things (IoT) device for purifying, detoxifying, and sterilizing household tap water. Background Technology

[0002] Household tap water purification equipment is mainly used in today's society to deeply treat tap water used in daily household use in order to improve water quality and meet diverse water needs. However, tap water purification equipment generally has many defects. Traditional equipment mostly uses a single filter element or a simple combination, which makes it difficult to remove multiple impurities such as sediment, heavy metals, and harmful organic matter at the same time.

[0003] Furthermore, current household kitchens use traditional ultraviolet or infrared heating for sterilization, which is inconvenient for sterilizing tableware, utensils, fruits, and vegetables, and doesn't address issues like not cutting surfaces (e.g., cutting boards). In terms of IoT, there's a lack of real-time water quality monitoring and remote control via apps or WeChat mini-programs. Users cannot monitor TDS values, filter lifespan, or other data in real time, and timely warnings are difficult to obtain when equipment malfunctions occur. Manual operation of switches and mode switching is required, resulting in insufficient ease of use. This can easily lead to water waste or damage from excessive water pressure. The lack of IoT functionality prevents integration into home smart systems, hindering remote start / stop, water quality data synchronization, and filter replacement reminders, thus failing to meet the needs of modern families for smart appliances. Utility Model Content

[0004] This invention provides an Internet of Things (IoT) device for purifying, detoxifying, and sterilizing household tap water, in order to solve the problems existing in the prior art.

[0005] To achieve the above objectives, this utility model provides an Internet of Things (IoT) household tap water purification, detoxification, and sterilization device, comprising:

[0006] The housing has a tap water inlet a, a purified water outlet b, a disinfectant / mineral water outlet g, and a wastewater outlet d on its side;

[0007] The microcontroller control motherboard is responsible for data acquisition and execution control;

[0008] The housing contains multiple filter elements, including a first filter element, a second filter element, a third filter element, and a fourth filter element.

[0009] An overflow O3 generator, wherein the overflow O3 generator can produce disinfectant water through the highly efficient oxidizing properties of ozone, and when the overflow O3 generator is turned off, the overflow water is mineral water;

[0010] A water flow sensor is used to detect water flow velocity in real time, providing data support for the equipment to calculate water volume, control the purification and disinfection process, and ensure that the system automatically adjusts its operation according to the water flow status.

[0011] The inlet solenoid valve is used to control the inflow of tap water. It opens or closes according to the instructions of the main control circuit, coordinates the water purification and disinfection process, and prevents water from flowing out of control in case of abnormalities.

[0012] A booster pump increases water pressure when water pressure is insufficient;

[0013] Check valves prevent water backflow, avoid water recirculation, ensure one-way water flow, and maintain the normal order of the purification process.

[0014] The wastewater valve opens according to the instructions of the main control circuit to discharge the wastewater generated during the purification process, adjust the water quality to meet the standards, and control the water pressure.

[0015] The high-pressure switch monitors the high-pressure status of the water circuit. When the pressure exceeds the set value, it triggers a signal to the main control circuit to control the booster pump or valve to prevent excessive water pressure from damaging the equipment.

[0016] Preferably, the housing is provided with multiple indicator lights and touch keys. By touching the touch keys, different water outlets can be switched, and corresponding indicator lights can be displayed.

[0017] Preferably, the first filter element is made of PCP composite material, the second filter element is made of RO membrane material, the third filter element is made of UF material, and the fourth filter element is made of activated carbon material.

[0018] Preferably, the tap water inlet a is connected to the first filter element, the inlet solenoid valve, the booster pump, the second filter element, the check valve, the fourth filter element, the high-pressure switch, and the purified water outlet b through a pipe to form a purified water channel.

[0019] Preferably, the tap water inlet a is connected to the first filter element, the inlet solenoid valve, the third filter element, the flow-through O3 generator, the water flow sensor, and the disinfectant / mineral water outlet g through a pipe to form a disinfectant / mineral water channel.

[0020] Preferably, the tap water inlet a is connected to the first filter element, the inlet solenoid valve, the booster pump, the second filter element, the wastewater valve, and the wastewater outlet d via a pipe to form a wastewater channel.

[0021] Preferably, the microcontroller control motherboard is electrically connected to the overcurrent O3 generator, water flow sensor, wastewater valve, booster pump, high-pressure switch, and inlet solenoid valve.

[0022] Preferably, the microcontroller control motherboard includes a TDS value / temperature algorithm chip, a touch key module, a microcontroller module, a power supply module, a disinfection module, an input module, an output module, an indicator light module, a switch module, a valve module, a 4G module, a water leakage sensor module, a buzzer module, and a booster pump module.

[0023] Preferably, the power module includes a local power supply and a disinfection module power supply.

[0024] Preferably, the switching module includes a high-pressure switch for purified water, a high-pressure switch for disinfectant / mineral water, and a low-pressure switch.

[0025] Compared with the prior art, the present invention has the following advantages:

[0026] Water purification section: Multi-stage purification is adopted for better water quality. The PCP composite filter cartridge filters out large particulate impurities, the RO membrane removes heavy metals and microorganisms, the UF membrane retains colloids, and activated carbon adsorbs odors. The combination of four filter cartridges makes the TDS value of pure water ≤50ppm, which is better than traditional single filter cartridge equipment.

[0027] Ozone disinfectant solution: Ozone provides deep, green sterilization with no residue. The flow-through O3 generator uses the strong oxidizing properties of ozone to destroy bacterial cell walls, achieving a sterilization rate of 99.9%. Compared to ultraviolet sterilization, it is more thorough and leaves no chemical residue. Washing vegetables and fruits with ozone disinfectant solution can degrade pesticide residues.

[0028] Three independent channels allow for scenario-based water use: the pure water channel meets direct drinking needs, the disinfectant / mineral water channel produces ozone-containing water that can be used for washing fruits and vegetables, and the wastewater channel is intelligently discharged and recycled, allowing wastewater to be reused for flushing toilets or watering plants, thus avoiding water waste.

[0029] Intelligent monitoring and protection ensure safety and reliability: a water flow sensor monitors the flow rate in real time, a high-pressure switch prevents excessive water pressure, and a microcontroller-controlled motherboard dynamically adjusts the booster pump and wastewater valve, reducing equipment failure rate by more than 40%.

[0030] IoT connectivity and remote management: It integrates a 4G module, supports real-time viewing of water quality data, remote start and stop of equipment, and filter replacement reminders via mobile APP or WeChat mini program, and is compatible with smart home systems to improve ease of use.

[0031] User-friendly interface: Touch keys switch water outlets, indicator lights display the working status in real time, and the operation interface is intuitive, making it easy for the elderly and children to use.

[0032] A quick and convenient alternative to traditional sterilizers: Utilizing O3, an internationally recognized "green and universal disinfectant," and mineral water through a unique water-air fusion technology, this solution creates an O3 disinfectant solution suitable for use on kitchen utensils, tableware, fruits and vegetables, handwashing, brushing teeth, etc. A simple rinse, soak, and wash eliminates bacteria and viruses. With a sterilization rate exceeding 99%, it's fast and convenient, replacing the inconvenience of traditional kitchen sterilizers. Attached Figure Description

[0033] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0034] Figure 1 The attached figure is a structural schematic diagram of this utility model.

[0035] Figure 2 The attached figure is a circuit structure diagram of the TDS value / temperature algorithm chip of this utility model.

[0036] Figure 3 The attached figure is a circuit diagram of the microcontroller of this utility model.

[0037] Figure 4 The attached figure is a circuit structure diagram of the switch module of this utility model.

[0038] Figure 5 The attached figure is a circuit diagram of the water leakage sensor of this utility model.

[0039] Figure 6 The attached figure is a circuit diagram of the buzzer of this utility model.

[0040] Figure 7 The attached figure shows the wastewater valve and wastewater valve circuit structure diagram in the valve module of this utility model.

[0041] Figure 8 The attached figure is a circuit diagram of the booster pump of this utility model.

[0042] Figure 9 The attached figure is a circuit diagram of the TDS+NTC+HL (Hall Flow Sensor) input socket of this utility model.

[0043] Figure 10 The attached figure is a circuit diagram of the 12PIN output socket of this utility model.

[0044] Figure labels: 1. Microcontroller control motherboard; 2. Overcurrent O3 generator; 3. Water flow sensor; 4. Third filter element; 5. Inlet solenoid valve; 6. Booster pump; 7. Fourth filter element; 8. Second filter element; 9. Check valve; 10. Wastewater valve; 11. High-pressure switch; 12. First filter element; a. Tap water inlet; b. Purified water outlet; g. Disinfectant / mineral water outlet; d. Wastewater outlet. Detailed Implementation

[0045] To facilitate understanding by those skilled in the art, various embodiments of this patent will be described below with reference to text and accompanying drawings. For clarity, many practical details will be explained in the following description. However, it should be understood that these practical details in the specification should not be used to limit this patent. That is, in some embodiments of this patent, these practical details are not essential. Furthermore, for ease of understanding, some conventional structures and components will be illustrated in the drawings in a simple schematic manner.

[0046] In the description of this patent, it should be understood that the terms "length", "width", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this patent and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this patent.

[0047] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this patent, "a plurality of" means two or more, unless otherwise explicitly specified.

[0048] In this patent, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this patent according to the specific circumstances.

[0049] Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of a person skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this patent.

[0050] Please see the appendix Figure 1This utility model discloses an Internet of Things (IoT) household tap water purification, detoxification, and sterilization device, comprising: a housing, wherein the side of the housing is provided with a tap water inlet a, a purified water outlet b, a disinfectant / mineral water outlet g, and a wastewater outlet d; the housing is provided with multiple indicator lights and touch keys, which can switch between different outlets by touching the touch keys, and at the same time correspond to different indicator lights; lightly touching the "rinse" touch key will manually rinse the RO filter; in case of failure (such as when the filter is depleted), the red indicator light flashes and the buzzer sounds an alarm.

[0051] Tap water flows into the first filter element 12 through inlet a. The microcontroller motherboard 1 controls the inlet solenoid valve 5 to open according to touch key commands or preset programs, and the water flow is divided into different channels.

[0052] The housing contains a single-chip microcomputer control motherboard 1, which is responsible for data acquisition and execution control;

[0053] The housing contains multiple filter elements, including a first filter element 12 preferably made of PCP composite 3-stage material, namely PP cotton + activated carbon + PP cotton, with a filtration accuracy of ≥5μm. Its main functions are to intercept sediment, rust, bacteria, remove residual chlorine, and clarify turbid water, performing preliminary filtration. The second filter element 8 preferably made of RO membrane material, which performs deep purification. The RO membrane removes heavy metals / microorganisms, and the final activated carbon improves the taste. The third filter element 4 preferably made of UF material. The UF ultrafiltration membrane has a pore size of 0.01μm, and the UF filter element can effectively intercept bacteria. The fourth filter element 7 preferably made of activated carbon material, which can adsorb residual chlorine and odors and inhibit microbial regeneration.

[0054] The flow-through O3 generator 2 is controlled by a microcontroller. When the flow-through O3 generator 2 is turned on, it achieves deep purification through the highly efficient oxidizing properties of ozone. Ozone (O3) is generated by electrolyzing air. The strong oxidizing properties of ozone (O3) can instantly destroy the cell structure of bacteria and viruses, achieving a high efficiency of over 99.9% inactivation, resulting in a thorough and reliable sterilization effect. The disinfectant water produced by the flow-through O3 generator 2 is a recognized "green universal disinfectant." After disinfection, it naturally decomposes into oxygen, which is friendly to humans and the environment, containing no harmful chemicals and far superior to chemical disinfectants. The concentration of the disinfectant water can be controlled by the disinfection module. After the disinfectant water flow stops, the system automatically executes a 30-second clean water flushing program to ensure that the ozone concentration in the pipeline is ≤0.05ppm (lower than the OSHA standard of 0.1ppm).

[0055] When washing vegetables, the disinfectant, thanks to the strong oxidizing properties of ozone, reacts chemically with pesticide molecules upon contact with the surface of fruits and vegetables. This effectively decomposes various common pesticide residues (such as organophosphates and organochlorines), breaking down the complex organic molecular structure of pesticides into simple, harmless, or low-harm small molecules with a degradation rate of ≥95%, far exceeding that of rinsing with water (≤30%) and washing with baking soda (≤60%). This achieves the goal of degrading pesticide residues. The degradation function only acts on pesticide molecules and does not damage nutrients such as vitamin C and anthocyanins in fruits and vegetables, providing safer and healthier food for families. The "detoxification" effect is clear and can be widely used in kitchens for cleaning tableware and utensils, and for soaking and disinfecting fruits and vegetables.

[0056] When the flow O3 generator 2 is turned off, the water flowing through it is mineral water, which is used for drinking, cooking, or making soup. It has a different taste experience than purified water (e.g., the taste of soup made with purified water is different from that made with mineral water).

[0057] Through an innovative dual-water-path design and intelligently controlled flow-through O3 water-air fusion technology, it provides top-notch "detoxification" (powerful degradation of pesticide residues) and "sterilization" (efficient inactivation of pathogens) capabilities. Users can safely and quickly detoxify food and sterilize items with a simple "rinse, soak, and wash" operation, completely freeing themselves from the constraints of traditional sterilizers. Simultaneously, the device also provides mineral water and purified water to improve taste, achieving a perfect fusion of detoxification, sterilization, healthy drinking water, and delicious cooking, greatly enhancing the convenience, safety, and quality of family life.

[0058] The housing is equipped with a water flow sensor 3, which is used to detect the water flow speed in real time, providing data support for the equipment to calculate water volume, control the purification and disinfection process, and ensure that the system automatically adjusts its operation according to the water flow status.

[0059] The housing is equipped with a water inlet solenoid valve 5, which is used to control the inflow of tap water. It is opened or closed according to the instructions of the main control circuit to coordinate the water purification and disinfection process and prevent water from flowing out of control in case of abnormality.

[0060] The housing is equipped with a booster pump 6 to increase the water pressure when the water pressure is insufficient;

[0061] The housing is equipped with a check valve 9 to prevent water backflow, avoid water recirculation, ensure one-way water flow, and maintain the normal order of the purification process.

[0062] The housing is equipped with a wastewater valve 10, which is opened according to the instructions of the main control circuit to discharge the wastewater generated during the purification process, adjust the water quality to meet the standards and control the water pressure.

[0063] The housing is equipped with a high-pressure switch 11 to monitor the high-pressure status of the water circuit. When the pressure exceeds the set value, a signal is triggered to the main control circuit to control the booster pump or valve to prevent the equipment from being damaged by excessive water pressure.

[0064] To further optimize the above technical solution, the tap water inlet a is connected to the first filter element 12, the water inlet solenoid valve 5, the booster pump 6, the second filter element 8, the check valve 9, the fourth filter element 7, the high-pressure switch 11 and the pure water outlet b through a pipe to form a pure water channel.

[0065] Tap water enters the first filter element 12 (PCP composite) to remove large particles of impurities such as sediment and rust. The inlet solenoid valve 5 opens, and the water flows into the booster pump 6 to increase pressure. It then passes through the second filter element 8 (RO membrane) to remove heavy metals, bacteria, and other harmful substances. The purified water passes through the check valve 9 to prevent backflow, and then through the fourth filter element 7 (activated carbon) to adsorb residual chlorine and odors. The flow is controlled by the high-pressure switch 11.

[0066] To further optimize the above technical solution, the tap water inlet a is connected to the first filter element 12, the inlet solenoid valve 5, the third filter element 4, the flow-through O3 generator 2, the water flow sensor 3, and the disinfectant / mineral water outlet g through a pipe to form a disinfectant / mineral water channel.

[0067] The water flows through the water solenoid valve 5 into the third filter element 4 (UF membrane) for filtration, and then enters the flow-through ozone generator 2. The flow-through ozone generator 2 produces a high concentration of ozone, which mixes with the water and destroys the DNA structure of bacteria and viruses through an oxidation reaction, achieving deep disinfection. The disinfected water flows out from the disinfected water / mineral water outlet g and can be used for kitchen cleaning, fruit and vegetable soaking, or to produce mineral water.

[0068] To further optimize the above technical solution, the tap water inlet a is connected to the first filter element 12, the water inlet solenoid valve 5, the booster pump 6, the second filter element 8, the wastewater valve 10 and the wastewater outlet d through a pipe to form a wastewater channel.

[0069] When the water flows through the second filter element 8, some impurities and pollutants that fail to pass through or are intercepted by the filter element will form wastewater. This is because during the purification process, the filter element removes harmful substances from the water, and these harmful substances, along with some water, form wastewater. The wastewater flows out from the second filter element 8 through a pipe and is discharged through the wastewater valve 10. The opening of the wastewater valve is controlled by the main control circuit to ensure that wastewater is discharged at the appropriate time. The wastewater is finally discharged from the wastewater outlet outside the equipment. Because this wastewater contains a lot of impurities and pollutants, it is usually not suitable for direct reuse, but it can be recycled and reused through appropriate treatment technology.

[0070] To further optimize the above technical solution, the microcontroller control motherboard 1 is electrically connected to the overcurrent O3 generator 2, the water flow sensor 3, the wastewater valve 10, the booster pump 6, the high-pressure switch 11, and the inlet solenoid valve 5.

[0071] To further optimize the above technical solution, the microcontroller control motherboard 1 includes a TDS / temperature algorithm chip for real-time monitoring of water quality parameters; a touch key module, allowing users to switch water output modes (pure water / disinfected water / mineral water) and display device status (such as filter life and fault codes) via the APP or WeChat mini-program; a microcontroller module; a power supply module, including a power supply for the main unit and a power supply for the disinfection module; a disinfection module; an input module; an output module; an indicator light module; a switch module, including a high-pressure switch for purified water, a high-pressure switch for disinfected water / mineral water, a low-pressure switch, a valve module; a 4G module, which uploads device data to a cloud server, allowing users to remotely view water quality reports, device operation logs, and receive filter replacement reminders via a mobile APP; a leak sensor module; a buzzer module; and a booster pump module.

[0072] Please see the appendix Figure 2 This diagram shows the circuit structure of the TDS / temperature algorithm chip of this invention. Core components include TDS measurement electrodes (TDS1_PS+, TDS1_ADC), an NTC thermistor (NTC1_ADC), and a Hall effect flow sensor interface (NetHL). The TDS electrode detects the water conductivity, which is then converted into a digital signal by the ADC to calculate the TDS value (formula: TDS = K × conductivity, where K is the temperature compensation coefficient). The NTC thermistor monitors the water temperature in real time and compensates for temperature-related errors in the TDS value (water temperature affects ion activity, requiring correction for measurement errors). The Hall effect sensor signal (NetHL) is input for flow rate conversion, combined with the TDS value to determine water quality changes. This enables real-time monitoring of water purity (TDS) and temperature, providing data support to the microcontroller motherboard 1 for water quality warnings, filter life calculations, and automatic adjustment of disinfection / purification modes.

[0073] Please see the appendix Figure 3This is a schematic diagram of the microcontroller circuit structure of this utility model. The core components include a microcontroller chip (such as the STM32 series), a 4G communication interface (4G_TX, 4G_RX), touch key input (PA0-PA7 pins, etc.), and a relay drive circuit (controlling the solenoid valve and booster pump). Touch key signals are received through I / O pins to trigger outlet switching and indicator light display. Communication with the 4G module is established via the UART interface to upload data such as TDS value and flow rate to the cloud and receive remote control commands. The booster pump speed is adjusted via PWM signals, and the on / off states of the solenoid valve and wastewater valve are controlled via relays. As the "brain" of the device, it integrates data processing, logic control, and communication functions, coordinating the collaborative work of various components to achieve intelligent operation and Internet of Things (IoT) interconnection.

[0074] Please see the appendix Figure 4 This is a circuit diagram of the switch module of this utility model. The core components include a high-pressure switch (normally open / normally closed contacts, such as GYS1 and GYS2), a low-pressure switch, and a relay (DYS1). When the water pressure exceeds a threshold (e.g., 0.4 MPa), the high-pressure switch contacts activate, relay DYS1 engages, cutting off the power to the booster pump and opening the wastewater valve to release pressure. The low-pressure switch detects insufficient inlet water pressure and triggers the booster pump start signal. Real-time monitoring of the water pressure status and pressure anomaly protection via electrical contact linkage prevent equipment damage due to high pressure or failure due to low pressure operation.

[0075] Please see the appendix Figure 5 This is a circuit diagram of the water leakage sensor of this utility model. The core components include resistor R16 and an ADC sampling circuit (IS_ADC). When the water leakage sensor probe comes into contact with water, the circuit is turned on, the voltage across resistor R16 changes, and when the ADC sampling voltage is lower than a threshold (e.g., 4.2V), an alarm signal is sent to the microcontroller motherboard. This is used to detect water leakage inside or around the equipment, triggering a buzzer alarm and closing the inlet solenoid valve to avoid safety hazards caused by water leakage.

[0076] Please see the appendix Figure 6 This is a circuit diagram of the buzzer of this utility model. The core components include the buzzer (R20) and the transistor driver circuit. When the microcontroller motherboard outputs a high-level signal, the transistor conducts, and the buzzer is powered on and emits a sound (such as an alarm for water leakage, filter failure, or abnormal pressure). The sound signal informs the user of abnormal equipment status or provides operational feedback, improving the intuitiveness of human-machine interaction.

[0077] Please see the appendix Figure 7This is a circuit diagram of the valve module (wastewater valve) of this utility model. The core components include the wastewater valve (driven by transistors Q1, Q2, and Q3), relays (D3, D4, and D5), and current-limiting resistors (R17-R23). The microcontroller motherboard sends a PWM signal, which is amplified by the transistors and then drives the relays to control the opening degree of the wastewater valve (adjusting the wastewater discharge rate) or to fully open / close the valve (e.g., during high-pressure relief). Wastewater discharge is dynamically adjusted based on TDS values, water pressure, and other data to ensure that the purified water meets standards while avoiding water waste or excessive water pressure.

[0078] Please see the appendix Figure 8 This is a circuit diagram of the booster pump of this utility model. The core components include a booster pump drive circuit (transistor Q1, resistor R17, and relay NetBEN). The microcontroller motherboard outputs a control signal, which is amplified by the transistor and triggers the relay to engage, powering on and starting the booster pump (automatically starting when the water pressure is insufficient, increasing the water pressure to the RO membrane's operating threshold). It automatically starts when the inlet water pressure is below 0.1MPa, providing sufficient driving force for RO membrane filtration and ensuring the efficiency of pure water production.

[0079] Please see the appendix Figure 9 This diagram shows the circuit structure of the TDS+NTC+HL input socket of this invention. The interface functions include an input interface for an integrated TDS electrode (TDS1_PS+, TDS1_PS-), an NTC thermistor (NTC1_PS+, NTC1_ADC), and a Hall effect flow sensor (NetHL). The sensor signals are divided by resistors (R9, R11, R13) and then transmitted to the ADC sampling port of the microcontroller motherboard through the input socket, achieving centralized data acquisition. Serving as the electrical connection hub between the sensors and the motherboard, it ensures stable transmission and anti-interference capabilities for TDS, temperature, and flow signals.

[0080] Please see the appendix Figure 10 This is a circuit diagram of the 12-pin output socket of this utility model. The interface functions include 12 output interfaces such as booster pump control (NetBEN), solenoid valve drive (NetJSF, NetCXF), and indicator light signal (O_AEEX). The microcontroller motherboard sends control signals to external actuators (such as booster pumps, solenoid valves, and indicator lights) through the output socket to realize centralized driving of equipment actions. As a bridge connecting the motherboard and peripherals, it simplifies circuit wiring and improves equipment integration and maintenance convenience.

[0081] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. For the apparatus disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the description is relatively simple; relevant parts can be referred to the method section.

[0082] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An Internet of Things (IoT) device for purifying, detoxifying, and sterilizing household tap water, characterized in that: include: The housing has a tap water inlet (a), a purified water outlet (b), a disinfectant / mineral water outlet (g), and a wastewater outlet (d) on its side. The microcontroller control motherboard (1) is responsible for data acquisition and execution control; The housing contains multiple filter elements, including a first filter element (12), a second filter element (8), a third filter element (4), and a fourth filter element (7); The flow-through O3 generator (2) can produce disinfectant water through the efficient oxidizing properties of ozone. When the flow-through O3 generator is turned off, the flow-through water is mineral water. The water flow sensor (3) is used to detect the water flow speed in real time, providing data support for the equipment to calculate water volume and control the purification and disinfection process, and ensuring that the system automatically adjusts its operation according to the water flow status. The inlet solenoid valve (5) is used to control the inflow of tap water. It is opened or closed according to the instructions of the main control circuit to coordinate the water purification and disinfection process and prevent water loss in case of abnormality. Booster pump (6) increases water pressure when water pressure is insufficient; Check valve (9) prevents water backflow, avoids water backflow, ensures one-way water flow, and maintains normal order of the purification process; Wastewater valve (10) opens according to the instructions of the main control circuit to discharge the wastewater generated during the purification process, adjust the water quality to meet the standards and control the water pressure. High pressure switch (11) monitors the high pressure status of the water circuit. When the pressure exceeds the set value, it triggers a signal to the main control circuit to control the booster pump or valve to prevent the equipment from being damaged by excessive water pressure.

2. The IoT-based household tap water purification, detoxification, and sterilization device according to claim 1, characterized in that, The housing is equipped with multiple indicator lights and touch keys. By touching the touch keys, different water outlets can be switched, each corresponding to a different indicator light.

3. The IoT-based household tap water purification, detoxification, and sterilization device according to claim 1, characterized in that, The first filter element (12) is made of PCP composite material, the second filter element (8) is made of RO membrane material, the third filter element (4) is made of UF material, and the fourth filter element (7) is made of activated carbon material.

4. The IoT-based household tap water purification, detoxification, and sterilization device according to claim 1, characterized in that, The tap water inlet (a) is connected to the first filter element (12), the water inlet solenoid valve (5), the booster pump (6), the second filter element (8), the check valve (9), the fourth filter element (7), the high-pressure switch (11), and the pure water outlet (b) through a pipe, forming a pure water channel.

5. The IoT-based household tap water purification, detoxification, and sterilization device according to claim 1, characterized in that, The tap water inlet (a) is connected to the first filter element (12), the inlet solenoid valve (5), the third filter element (4), the flow-through O3 generator (2), the water flow sensor (3), and the disinfectant / mineral water outlet (g) through a pipe, forming a disinfectant / mineral water channel.

6. The IoT-based household tap water purification, detoxification, and sterilization device according to claim 1, characterized in that, The tap water inlet (a) is connected to the first filter element (12), the water inlet solenoid valve (5), the booster pump (6), the second filter element (8), the wastewater valve (10), and the wastewater outlet (d) through a pipe, forming a wastewater channel.

7. The IoT-based household tap water purification, detoxification, and sterilization device according to claim 1, characterized in that, The microcontroller control motherboard (1) is electrically connected to the overcurrent O3 generator (2), water flow sensor (3), wastewater valve (10), booster pump (6), high-pressure switch (11) and water inlet solenoid valve (5).

8. The IoT-based household tap water purification, detoxification, and sterilization device according to any one of claims 1 to 7, characterized in that: The microcontroller control motherboard (1) includes a TDS value / temperature algorithm chip, a touch key module, a microcontroller module, a power supply module, a disinfection module, an input module, an output module, an indicator light module, a switch module, a valve module, a 4G module, a water leakage sensor module, a buzzer module, and a booster pump module.

9. The IoT-based household tap water purification, detoxification, and sterilization device according to claim 8, characterized in that, The power module includes a local power supply and a disinfection module power supply.

10. The IoT-based household tap water purification, detoxification, and sterilization device according to claim 8, characterized in that, The switch module includes a high-pressure switch for purified water, a high-pressure switch for disinfected / mineral water, and a low-pressure switch.

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