High-energy-efficiency digital display faucet circuit

Abstract

The utility model discloses a high-energy-efficiency digital display faucet circuit which comprises a miniature hydroelectric generator M, a lighting circuit, a rectifying and filtering circuit, a voltage stabilizing diode, a three-terminal voltage stabilizer IC1 and a temperature measuring and displaying circuit. The lighting circuit comprises a shunt diode D5 and a light emitting diode D6; the rectification filter circuit comprises a rectifier bridge composed of diodes D1-D4 and a capacitor C1. The temperature measurement display circuit comprises capacitors C2 to C3, resistors R1 to R2, a processor IC2, a display screen LED1 and a temperature sensor T1. According to the high-energy-efficiency digital display faucet circuit, the three-terminal voltage stabilizer IC1 is effectively protected from being damaged by ultra-high voltage, and meanwhile one path of electric energy output by the micro hydroelectric generator directly supplies power to a light-emitting lamp strip composed of a light-emitting diode D6 through a shunt diode. The light-emitting diode D6 can reasonably and effectively utilize the output electric energy of the micro hydroelectric generator, and the brightness and the stability of the light-emitting lamp strip are improved.

Description

Technical Field

[0001] The utility model relates to a digital display faucet control circuit, in particular to a high energy-efficient digital display faucet circuit. Background Art

[0002] The faucet is a valve that controls the flow of water and is one of the most commonly used devices in daily family life. Now many families use stainless steel dual-temperature dual-control faucets, and kitchen combination faucets have also appeared. At present, more and more consumers are buying faucets, and they will consider the material, function, shape and other aspects comprehensively. The main raw materials of faucets are copper and zinc alloy. Usually, hot faucets generally have a red indicator light or symbol, while cold faucets generally have a blue or green indicator light or symbol. With the advancement of electronic technology, electric hot water faucets and temperature digital display faucets have been born. Temperature digital display faucets are faucets that can display water temperature. They usually use a digital display to display the temperature of the water, allowing people to control and adjust the water temperature more conveniently. This faucet is suitable for various places such as homes, public places, and hotels.

[0003] my country's utility model patent with application number 202022820159.1 discloses a self-generating light strip for bathroom use, which includes a box body, a micro-hydro generator is fixedly connected to the inner wall of one side of the box body, the water inlet end of the micro-hydro generator is connected to a connecting elbow, the other end of the connecting elbow is connected to a three-way joint, and the three-way joint is fixedly installed on one side of the bottom inner wall of the box body. The utility model can achieve the effect of automatically generating electricity by flowing water through the micro-hydro generator, and at the same time, the light source can emit light to achieve the effect of emitting light, which can achieve the effect of emitting light of the light strip.

[0004] my country's utility model patent with application number 202222012178.0 discloses a new type of quick-connect hydraulic power faucet with digital display, a mixing valve core is installed in the faucet body, the water outlet of the mixing valve core is connected to a water outlet pipe, the water outlet pipe is connected to a plastic power generation device installation body, the bottom of the power generation device installation body is connected to a pull-out pipe, the power generation device installation body is installed with a power generation device, the end of the water outlet pipe is provided with an upper interface, the top of the power generation device installation body is provided with an upper joint that is clamped to the inner side of the upper interface, the bottom of the power generation device installation body is provided with a lower interface, one end of the pull-out pipe is provided with a lower joint that is clamped to the inner side of the lower interface, the other end of the pull-out pipe is connected to a pull head, and a digital display screen is installed on the front side of the faucet body.

[0005] However, the digital display faucet in the prior art usually connects the light strip to the rear end of the three-terminal regulator. Since the output voltage and output current of the three-terminal regulator are fixed, the voltage and current obtained by the light strip are fixed even at a higher water pressure, so the brightness of the light strip is limited.

[0006] Moreover, in the detection and control circuit of the digital display faucet in the prior art, there is no overpressure protection device in front of the three-terminal voltage regulator. During hydroelectric power generation, since the water pressure in daily life is unstable, the water pressure is generally between 1.5 and 3.5 kilograms, and the highest can reach more than 8 kilograms, and its output voltage can reach 60 to 70V. However, the input limit voltage of the three-terminal voltage regulator is generally only 30V. If the above-mentioned high water pressure and high voltage are encountered, the three-terminal voltage regulator and its subsequent circuits are easily broken down and damaged. In this way, not only the visual effect of the light of the digital display faucet is reduced, the measurement of the water temperature of the faucet is affected, but also the failure rate is greatly increased, the working stability is low, and the reliability is poor. Utility Model Content

[0007] The utility model aims to avoid the deficiencies existing in the above-mentioned prior art and to provide a high-energy-efficiency digital display faucet circuit, so as to be able to monitor the temperature of the faucet in real time and improve the stability and working reliability of the temperature display circuit.

[0008] The utility model adopts the following technical solutions to solve the technical problems.

[0009] The utility model discloses a high-efficiency digital display faucet circuit, comprising a micro hydroelectric generator M, a lighting circuit, a rectifier filter circuit, a voltage regulator diode D7, a three-terminal voltage regulator IC1 and a temperature measurement and display circuit;

[0010] The lighting circuit includes a shunt diode D5 and a light emitting diode D6;

[0011] The rectification and filtering circuit includes a rectifier bridge composed of diodes D1 to D4 and a capacitor C1;

[0012] The temperature measurement and display circuit includes capacitors C2-C3, resistors R1-R2, a processor IC2, a display screen LED1 and a temperature sensor T1.

[0013] The structural features of a high-efficiency digital display faucet circuit of the utility model are also:

[0014] Furthermore, the model of the processor IC2 is SC8P1712E.

[0015] Furthermore, the model of the three-terminal regulator IC1 is HT7540.

[0016] Compared with the prior art, the beneficial effects of the utility model are embodied in:

[0017] The utility model discloses a high-energy-efficiency digital display faucet circuit, comprising a micro-hydroelectric generator M, a lighting circuit, a rectifier filter circuit, a voltage regulator diode, a three-terminal voltage regulator IC1 and a temperature measurement and display circuit; the lighting circuit comprises a shunt diode D5 and a light-emitting diode D6; the rectifier filter circuit comprises a rectifier bridge composed of diodes D1-D4 and a capacitor C1; the temperature measurement and display circuit comprises capacitors C2-C3, resistors R1-R2, a processor IC2, a display screen LED1 and a temperature sensor T1.

[0018] The high-efficiency digital display faucet circuit of the utility model is also connected in parallel with a voltage regulator diode D7 on the rectifier and filter circuit. When the water pressure in the water pipe fluctuates greatly and encounters high water pressure, and the micro-hydroelectric generator M outputs an ultra-high voltage of 60-70V exceeding the conventional voltage, the voltage regulator diode D7 conducts in the reverse direction, quickly lowering the input voltage of the three-terminal voltage regulator IC1, effectively protecting the three-terminal voltage regulator IC1 from being damaged by the ultra-high voltage.

[0019] The high-efficiency digital display faucet circuit of the utility model has the advantages of being able to protect the three-terminal voltage regulator IC1 when the water pressure is unstable, displaying the outlet water temperature of the faucet in real time, and improving the temperature stability and working reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 The utility model is a circuit diagram of a high-energy-efficiency digital display faucet circuit.

[0021] Figure 2 The utility model is a circuit diagram of a high-energy-efficiency digital display faucet circuit.

[0022] Figure 3 The present invention is a pin diagram of a three-terminal voltage regulator HT7540 for a high-efficiency digital display faucet circuit.

[0023] The present invention is further described below through specific implementation methods in conjunction with the accompanying drawings. Implementation

[0024] See also Figures 1 to 3 The utility model discloses a high-efficiency digital display faucet circuit, comprising a micro hydroelectric generator M, a lighting circuit, a rectifier filter circuit, a voltage regulator diode D7, a three-terminal voltage regulator IC1 and a temperature measurement and display circuit;

[0025] The lighting circuit includes a shunt diode D5 and a light emitting diode D6;

[0026] The rectification and filtering circuit includes a rectifier bridge composed of diodes D1 to D4 and a capacitor C1;

[0027] The temperature measurement and display circuit includes capacitors C2-C3, resistors R1-R2, a processor IC2, a display screen LED1 and a temperature sensor T1.

[0028] like Figure 1 The utility model is a high-efficiency digital display faucet circuit, which is mainly composed of a micro-hydroelectric generator M, a lighting circuit, a rectifier filter circuit, a voltage regulator diode D7, a three-terminal voltage regulator IC1 and a temperature measurement and display circuit. The connection relationship of each component is as follows Figure 1 As shown. The micro hydroelectric generator M is driven by the water power of the faucet to generate electricity, and the electricity is supplied to the lighting circuit to provide lighting. At the same time, the output voltage of the micro hydroelectric generator M is filtered and rectified by the rectifier filter circuit, and then sent to the three-terminal regulator IC1 for voltage stabilization. The temperature sensor T1 sends the measured temperature signal to the processor IC2, which is processed by the processor IC2 and displayed in real time on the display screen LED1.

[0029] In one specific implementation scheme, the processor IC2 is SC8P1712E.

[0030] like Figure 2, SMIC SC8P1712EA SOP16 1712 ADC MCU supports ADC as a high-performance, highly integrated microcontroller with many excellent features and functions, and is widely used in various embedded systems. First of all, SMIC SC8P1712EA SOP16 1712 ADC MCU supports ADC using advanced process technology, with the advantages of high speed and low power consumption. It integrates a wealth of peripheral modules such as ADC, PWM, UART, SPI, etc., which can meet various application requirements. At the same time, it also supports a variety of development tools and programming languages, which is convenient for developers to program and debug. Secondly, SMIC SC8P1712EA SOP16 1712 ADC MCU supports ADC with very high reliability and stability. It has rigorous internal design and multiple protection mechanisms, which can ensure stable operation in various harsh working environments. In addition, it also supports online programming and remote updates, which is convenient for users to upgrade and maintain firmware. Furthermore, the usability of the SC8P1712EA SOP16 1712 ADC MCU supports ADC is also excellent. It provides easy-to-understand pinouts and rich development documents, allowing developers to get started quickly. At the same time, it also supports a variety of packaging forms, and the appropriate package can be selected according to different application requirements. In addition, the SC8P1712EA SOP16 1712 ADC MCU supports ADC also has the advantage of low cost. Compared with other microcontrollers of the same type, its price is more affordable and can effectively reduce the cost of the entire embedded system. This makes the SC8P1712EA SOP16 1712 ADC MCU supports ADC more competitive in the market. In short, the SC8P1712EA SOP16 1712 ADC MCU supports ADC is a high-performance, high-integration, high-reliability, high-usability and low-cost microcontroller. It has rich peripheral modules, supports multiple development tools and programming languages, rigorous internal design and multiple protection mechanisms, easy-to-understand pinouts, rich development documentation and low cost. These excellent features and functions make the SC8P1712EA SOP16 1712 ADC MCU with ADC support a very good embedded system solution. Whether in smart home, industrial control, medical electronics or other fields, the SC8P1712EA SOP16 1712 ADC MCU with ADC support can play an excellent performance and stability, providing a strong guarantee for the efficient operation of the entire system.

[0031] In one specific implementation scheme, the model of the three-terminal regulator IC1 is HT7540.

[0032] like Figure 3 , the HT75XX series voltage regulator is a low voltage dropout linear voltage regulator using CMOS technology, and the HT7540 is one of the products. The maximum operating voltage of the HT7540 is about 30V, the input voltage range is -0.3~33V, the output voltage value is 3.88~4.12V, and the output voltage typical value is 4.0V. It has low static power consumption and is widely used in the power supply of various audio, video equipment and communication equipment.

[0033] The pin diagram of processor IC2 and three-terminal regulator IC1 is as follows Figure 2 and Figure 3 As shown, in addition to these two commonly used chips, the processor IC2 and the three-terminal regulator IC1 of the utility model can also be replaced by other commonly used single-chip microcomputers and regulators. The specific connection method between other components of the circuit of the utility model and each pin of IC1 and IC2 is adjusted according to their specific models.

[0034] The high-efficiency digital display faucet circuit of the utility model includes a micro hydroelectric generator M, a lighting circuit, a rectifier filter circuit, a voltage regulator diode, a three-terminal voltage regulator IC1 and a temperature measurement and display circuit. The diodes D1 to D4 form a rectifier bridge, and the rectifier bridge and the filter circuit C1 form a rectifier filter circuit. The temperature measurement and display circuit includes capacitors C2 to C3, resistors R1 to R2, a processor IC2, a display screen LED1 and a temperature sensor T1; wherein C2 and C3 are filter capacitors, and the temperature sensor T1 is used to measure the water temperature. Resistors R1 and R2 are voltage divider resistors of the temperature sensor T1. IC2 is a single-chip microcomputer, and LED1 is a display screen.

[0035] The first end of the capacitor C1 is connected to the rectifier bridge and to the Vin terminal of the three-terminal regulator IC1, and the second end of one end of the capacitor C1 is connected to the rectifier bridge and to the GND terminal of the three-terminal regulator IC1.

[0036] The first end of the Zener diode D7 is connected to the rectifier bridge and to the Vin terminal of the three-terminal regulator IC1, and the second end of one end of the Zener diode D7 is connected to the rectifier bridge and to the GND terminal of the three-terminal regulator IC1.

[0037] The first end of the capacitor C2 is connected to the single-chip computer IC2 and to the Vout terminal of the three-terminal regulator IC1, and the second end of the capacitor C2 is connected to the rectifier bridge and to the GND terminal of the three-terminal regulator IC1.

[0038] One end of the resistors R1 and R2 connected in series is connected to the microcontroller IC2 and to the Vout terminal of the three-terminal regulator IC1, and the other end of the resistors R1 and R2 connected in series is connected to the rectifier bridge and to the GND terminal of the three-terminal regulator IC1.

[0039] The first end of the capacitor C3 is connected to the single-chip computer IC2, and the second end of the capacitor C3 is connected to the GND terminal of the three-terminal regulator IC1.

[0040] One end of the temperature sensor T1 is grounded, and the other end is connected between the resistors R1 and R2.

[0041] During specific operation, one path of the micro hydroelectric generator output electric energy is directly used to power the light strip formed by the light emitting diode D6 via the shunt diode, ensuring that the light emitting diode D6 can reasonably and effectively utilize the output electric energy of the micro hydroelectric generator, thereby improving the brightness and stability of the light strip.

[0042] Another path of the electric energy output by the micro hydroelectric generator M is sent to the voltage regulator diode, the three-terminal voltage regulator IC1 and the temperature measurement and display circuit; the voltage regulator diode is connected in parallel to the rectifier and filter circuit; when encountering high water pressure and high voltage, the voltage regulator diode conducts in reverse, quickly lowering the input voltage of the three-terminal voltage regulator, effectively protecting the three-terminal voltage regulator from being damaged by the ultra-high voltage.

[0043] The other part of the electric energy output by the micro hydroelectric generator M is converted into direct current after the rectification and filtering circuit, and is sent to the three-terminal voltage regulator IC1 for voltage stabilization. The output electric energy after voltage stabilization is filtered by the filter capacitor C2 and then supplies power to the single-chip microcomputer IC2. The water temperature signal voltage in the faucet sensed by the temperature sensor T1 is sent to the single-chip microcomputer IC2 after comparison by the bias circuit composed of resistors R1 and R2. The single-chip microcomputer IC2 is burned with a program to display the temperature, and finally drives the display screen LED1 to display the temperature of the water in the faucet, that is, the water temperature of the faucet water.

[0044] The high-efficiency digital display faucet circuit of the utility model is also connected in parallel with a voltage stabilizing diode D7 on the rectifier and filter circuit. When the water pressure in the water pipe fluctuates greatly and encounters high water pressure, and the micro-hydroelectric generator M outputs an ultra-high voltage of 60 to 70V exceeding the conventional voltage, the voltage stabilizing diode D7 conducts in the reverse direction, quickly lowering the input voltage of the three-terminal voltage regulator IC1, effectively protecting the three-terminal voltage regulator IC1 from being damaged by the ultra-high voltage, thereby improving the stability and working reliability of the temperature display circuit.

[0045] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0046] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A high energy efficiency digital display faucet circuit, characterized in that: It includes a micro hydroelectric generator M, a lighting circuit, a rectifier filter circuit, a voltage regulator diode D7, a three-terminal voltage regulator IC1 and a temperature measurement and display circuit; The lighting circuit includes a shunt diode D5 and a light emitting diode D6; The rectification and filtering circuit includes a rectifier bridge composed of diodes D1 to D4 and a capacitor C1; The temperature measurement and display circuit includes capacitors C2-C3, resistors R1-R2, a processor IC2, a display screen LED1 and a temperature sensor T1.

2. According to claim 1, a high-efficiency digital display faucet circuit is characterized in that: The model of the processor IC2 is SC8P1712E.

3. The high energy efficiency digital display faucet circuit according to claim 1 is characterized in that: The model of the three-terminal regulator IC1 is HT7540.

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