阅读说明：本技术 电子可调恒温出水太阳能热水器控制器 (Electronic adjustable constant temperature water outlet solar water heater controller ) 是由 潘天堂 陈新 朱永东 于 2020-04-21 设计创作，主要内容包括：本发明涉及电子可调恒温出水太阳能热水器控制器,属于民用太阳能热水器领域。包括开关电源、A/D转换器、单片机、驱动电路、数码管显示器、显示电路、四个设置按键开关和IO线排,开关电源分别连接A/D转换器、单片机、驱动电路和显示电路,四个设置按键开关与单片机连接,单片机同时与驱动电路和显示电路连接,驱动电路与IO线排连接,IO线排与A/D转换器连接,A/D转换器与单片机连接,显示电路与数码管显示器连接。本发明能够接受热、冷水温度信息,按设定出水温度,并根据程度内部算法分别开启冷热水阀到一定角度,并由温水温度传感器信息反馈进行闭环控制,得到准确的出水温度。(The invention relates to an electronic adjustable constant-temperature water outlet solar water heater controller, belonging to the field of civil solar water heaters. The display device comprises a switch power supply, an A/D converter, a single chip microcomputer, a driving circuit, a nixie tube displayer, a display circuit, four set key switches and an IO line row, wherein the switch power supply is respectively connected with the A/D converter, the single chip microcomputer, the driving circuit and the display circuit, the four set key switches are connected with the single chip microcomputer, the single chip microcomputer is simultaneously connected with the driving circuit and the display circuit, the driving circuit is connected with the IO line row, the IO line row is connected with the A/D converter, the A/D converter is connected with the single chip microcomputer, and the display circuit is connected with the ni. The invention can receive the temperature information of hot water and cold water, respectively open the cold water valve and the hot water valve to a certain angle according to the set outlet water temperature and the internal algorithm of the degree, and carry out closed-loop control by the information feedback of the warm water temperature sensor, thereby obtaining the accurate outlet water temperature.)

1. The electronic adjustable constant-temperature water outlet solar water heater controller is characterized by comprising a switching power supply, an A/D converter, a single chip microcomputer, a driving circuit, a nixie tube displayer, a display circuit, four set key switches and an IO line row, wherein the switching power supply is respectively connected with the A/D converter, the single chip microcomputer, the driving circuit and the display circuit, the four set key switches are connected with the single chip microcomputer, the single chip microcomputer is simultaneously connected with the driving circuit and the display circuit, the driving circuit is connected with the IO line row, the IO line row is connected with the A/D converter, the A/D converter is connected with the single chip microcomputer, and the display circuit is connected with the nixie tube displayer.

2. The controller of an electronically adjustable constant temperature outlet water solar water heater according to claim 1,

the switching power supply is used for rectifying the input AC220V into DC330V and supplying power to the A/D converter, the singlechip, the drive circuit and the display circuit;

the switching power supply is also used for transforming DC300V and generating a +5V circuit, two +12V circuits and a-12V circuit;

the A/D converter is used for receiving analog signals of three temperature sensors and one water quantity sensor in the solar water heater, converting the analog signals into digital signals and sending the digital signals to the singlechip;

the singlechip is used for sending a control signal to the drive circuit according to the digital signal and a preset program and outputting a display signal to the display circuit;

the driving circuit is used for amplifying the control signal and driving a cold and hot water valve motor in the solar water heater to run in the positive and negative directions;

the display circuit is used for receiving the display signal and driving the nixie tube display to display;

the nixie tube display is used for displaying the water level, the hot water temperature and the warm water temperature;

the four setting key switches are used for sending setting signals to the single chip microcomputer so as to set the water heater;

the IO line bank is used for connecting the three temperature sensors, the water quantity sensor and the cold and hot water valve motor in the solar water heater, the driving circuit sends the amplified control signal through the IO line bank, and the A/D converter receives the analog signal through the IO line bank.

3. The electronically adjustable constant temperature outlet water solar water heater controller as claimed in claim 2, wherein the switching power supply comprises a power supply circuit, an absorption loop, a feedback circuit and a self-powered circuit.

4. The electronically adjustable constant temperature outlet water solar water heater controller as claimed in claim 2, wherein the water heater settings include an outlet water temperature setting, a clock setting and a water supply time setting.

Technical Field

The invention relates to an electronic adjustable constant-temperature water outlet solar water heater controller, belonging to the field of civil solar water heaters.

Background

The existing controller for the solar water heater has simple functions, and most of the existing controllers can only control one water inlet electromagnetic valve to be in a full-on state or a full-off state, but cannot control the opening degree of a cold water pipe and a hot water pipe, so that the outlet water temperature can not be adjusted through electronic control.

Disclosure of Invention

The invention aims to provide an electronic adjustable constant-temperature water outlet solar water heater controller, which aims to solve the problem that the outlet water temperature adjustment cannot be controlled electronically because the existing solar water heater controller is simple in function, can only control one water inlet electromagnetic valve to be in a fully-opened or fully-closed state mostly, and cannot control the opening degree of a cold water pipe and a hot water pipe.

The electronic adjustable constant-temperature water outlet solar water heater controller comprises a switch power supply, an A/D converter, a single chip microcomputer, a driving circuit, a nixie tube displayer, a display circuit, four set key switches and an IO line row, wherein the switch power supply is respectively connected with the A/D converter, the single chip microcomputer, the driving circuit and the display circuit, the four set key switches are connected with the single chip microcomputer, the single chip microcomputer is simultaneously connected with the driving circuit and the display circuit, the driving circuit is connected with the IO line row, the IO line row is connected with the A/D converter, the A/D converter is connected with the single chip microcomputer, and the display circuit is connected with the nixie tube displayer.

Further, the switching power supply is used for rectifying the input AC220V into DC330V and supplying power to the A/D converter, the singlechip, the driving circuit and the display circuit;

the switching power supply is also used for transforming DC300V and generating a +5V circuit, two +12V circuits and a-12V circuit;

the A/D converter is used for receiving analog signals of three temperature sensors and one water quantity sensor in the solar water heater, converting the analog signals into digital signals and sending the digital signals to the singlechip;

the singlechip is used for sending a control signal to the drive circuit according to the digital signal and a preset program and outputting a display signal to the display circuit;

the driving circuit is used for amplifying the control signal and driving a cold and hot water valve motor in the solar water heater to run in the positive and negative directions;

the display circuit is used for receiving the display signal and driving the nixie tube display to display;

the nixie tube display is used for displaying the water level, the hot water temperature and the warm water temperature;

the four setting key switches are used for sending setting signals to the single chip microcomputer so as to set the water heater;

the IO line bank is used for connecting the three temperature sensors, the water quantity sensor and the cold and hot water valve motor in the solar water heater, the driving circuit sends the amplified control signal through the IO line bank, and the A/D converter receives the analog signal through the IO line bank.

Further, the switching power supply comprises a power supply circuit, an absorption loop, a feedback circuit and a self-power supply circuit.

Furthermore, the setting of the water heater comprises the setting of the water outlet temperature, the setting of a clock and the setting of the water feeding time.

The main advantages of the invention are: the electronic adjustable constant-temperature water outlet solar water heater controller can receive hot water temperature information and cold water temperature information, respectively open cold and hot water valves to a certain angle according to a set water outlet temperature and a degree internal algorithm, and perform closed-loop control by information feedback of the warm water temperature sensor to obtain accurate water outlet temperature.

Drawings

FIG. 1 is a control schematic diagram of an adjustable constant temperature water outlet solar water heater;

FIG. 2 is a diagram of a display panel of a nixie tube display;

FIG. 3 is a schematic diagram of an electronic adjustable constant temperature water outlet solar water heater controller according to the present invention;

FIG. 4 is a circuit diagram of a switching power supply;

FIG. 5 is a schematic diagram of the A/D converter and the peripheral circuit of the single chip microcomputer.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 3, the invention provides an embodiment of an electronic adjustable constant-temperature water outlet solar water heater controller, which comprises a switch power supply, an A/D converter, a single chip microcomputer, a driving circuit, a nixie tube displayer, a display circuit, four set key switches and an IO line row, wherein the switch power supply is respectively connected with the A/D converter, the single chip microcomputer, the driving circuit and the display circuit, the four set key switches are connected with the single chip microcomputer, the single chip microcomputer is simultaneously connected with the driving circuit and the display circuit, the driving circuit is connected with the IO line row, the IO line row is connected with the A/D converter, the A/D converter is connected with the single chip microcomputer, and the display circuit is connected with the nixi.

Specifically, in the electronic control schematic diagram of the controller of the present invention, AC220V inputs voltage signals generated by a switching power supply to generate related dc low voltage for the subsequent modules to use, an a/D converter receives voltage signals of three temperature sensors and one water quantity sensor and converts the voltage signals into mathematical signals to a single chip microcomputer, the single chip microcomputer sends out signals according to program requirements, the signals are amplified by a driving circuit to drive a cold and hot water valve motor to run in forward and reverse directions to adjust the water outlet quantity of cold and hot water, and a display circuit receives signals of the single chip microcomputer to drive a nixie tube display to display the water level, the hot water temperature and the warm water temperature.

In the preferred embodiment of this section, the switching power supply is used for rectifying the input AC220V into DC330V and supplying power to the A/D converter, the singlechip, the drive circuit and the display circuit;

the switching power supply is used for transforming DC300V and generating a +5V circuit, two +12V circuits and a-12V circuit, wherein the +12V circuit is used for supplying power to a motor, the +12V circuit and the-12V circuit are used for supplying power to a subsequent circuit comparator and an operational amplifier circuit, and the switching power supply circuit is composed of a power supply circuit, an absorption loop, a feedback circuit and a self-power supply circuit;

the A/D converter is used for receiving analog signals of three temperature sensors and one water quantity sensor in the solar water heater, converting the analog signals into digital signals and sending the digital signals to the singlechip;

the singlechip is used for sending a control signal to the drive circuit according to the digital signal and a preset program and outputting a display signal to the display circuit;

the driving circuit is used for amplifying the control signal and driving a cold and hot water valve motor in the solar water heater to run in the positive and negative directions;

the display circuit is used for receiving the display signal and driving the nixie tube display to display;

a nixie tube display for displaying water level, hot water temperature and warm water temperature;

the four setting key switches are used for sending a setting signal to the single chip microcomputer so as to set the water heater;

and the IO line bank is used for connecting three temperature sensors, one water quantity sensor and a cold and hot water valve motor in the solar water heater, the driving circuit sends amplified control signals through the IO line bank, and the A/D converter receives analog signals through the IO line bank.

Specifically, fig. 5 is a simplified diagram of an AD conversion and peripheral circuit of a single chip microcomputer, an ADC0809 chip is a chip of a four-way analog a/D converter, and an 80S51 chip is a single chip microcomputer, and the two chips are used in cooperation to collect voltage signals of three temperature sensors and a water quantity sensor and convert the voltage signals into mathematical signals to be sent to the single chip microcomputer, and the single chip microcomputer drives four field-effect transistors Q1, Q2, Q3 and Q4 through internal program calculation, so as to finally realize the water quantity regulation function of the cold and hot water regulation valve. The water level display and the hot water temperature display are realized by driving a plurality of LEDs by a single chip microcomputer. Other ancillary circuits are omitted here.

In the preferred embodiment of this section, the switching power supply includes a power supply circuit, an absorption loop, a feedback circuit, and a self-power supply circuit.

In the preferred embodiment of this section, the water heater settings include the outlet water temperature setting, the clock setting, and the water supply time setting.

The controller of the invention is realized on the basis of an electronic adjustable constant-temperature water outlet solar water heater, the water heater comprises a water storage tank, a controller, a first thermosensitive temperature measuring resistor, a second thermosensitive temperature measuring resistor, a third thermosensitive temperature measuring resistor, a water quantity sensor, a water inlet cold water pipe, a water outlet hot water pipe, a water outlet warm water pipe, a cold water inlet electric regulating valve, a hot water outlet electric regulating valve, a water mixing ball and a water outlet ball valve, one end of the water outlet hot water pipe is communicated with the water storage tank, the other end of the water outlet hot water pipe is communicated with the water inlet cold water pipe and the water outlet warm water pipe through the water mixing ball, the first thermosensitive temperature measuring resistor, the second thermosensitive temperature measuring resistor and the third thermosensitive temperature measuring resistor are respectively arranged on the water inlet cold water pipe, the water outlet hot water pipe and the water outlet warm water pipe, the cold water inlet electric regulating valve is arranged on the water inlet cold water pipe, the, the water quantity sensor is arranged beside the water storage tank, and the controller is respectively connected with the first thermosensitive temperature measuring resistor, the second thermosensitive temperature measuring resistor, the third thermosensitive temperature measuring resistor, the water quantity sensor, the cold water inlet electric regulating valve and the hot water outlet electric regulating valve.

In the preferred embodiment of the part, the water storage tank is used for storing hot water heated by the water heater;

the controller is used for respectively opening the cold water inlet electric regulating valve and the hot water outlet electric regulating valve to a certain angle according to the set outlet water temperature and the degree internal algorithm according to the hot water temperature information and the cold water temperature information, receiving warm water temperature information feedback sent by the third thermosensitive temperature measuring resistor, and performing closed-loop control to obtain the outlet water temperature;

the first thermosensitive temperature measuring resistor is used for generating and sending cold water temperature information to the controller;

the second thermosensitive temperature measuring resistor is used for generating and sending hot water temperature information to the controller;

the third thermosensitive temperature measuring resistor is used for generating and sending warm water temperature information to the controller;

the water quantity sensor is used for measuring the hot water level of the water storage tank and sending the hot water level information to the controller;

the water inlet cold water pipe is used for introducing cold water to the water mixing valve;

the water outlet hot water pipe is used for leading hot water in the water storage tank to the water mixing valve;

the water outlet warm water pipe is used for leading out warm water from the water mixing valve;

the cold water inlet electric regulating valve is used for regulating the cold water distribution amount in the water inlet cold water pipe under the command of the controller;

the hot water outlet electric regulating valve is used for regulating the hot water distribution amount in the water outlet hot water pipe under the command of the controller;

a water mixing ball for mixing cold water and hot water to warm water;

and the water discharging ball valve is used for controlling the flow of warm water in the water outlet warm water pipe.

In the preferred embodiment of the part, the cold water inlet electric regulating valve and the hot water outlet electric regulating valve are synchronously regulated, and the sum of the opening degrees is 100%.

Specifically, referring to fig. 1, a hot water outlet pipe, a cold water inlet pipe and a warm water outlet pipe are respectively provided with a thermistor; a cold water inlet electric regulating valve and a hot water outlet electric regulating valve are respectively arranged on the water inlet cold water pipe and the water outlet hot water pipe and are used for regulating the cold and hot water distribution amount; the water mixing ball arranged at the joint of the cold water pipe and the hot water pipe can more uniformly mix cold water and hot water; the water quantity sensor adopts an adjustable potentiometer and is used for measuring the hot water level of the water storage tank; the traditional expensive shower head with a complex mechanical structure and an inaccurate and reliable operation of a water mixing valve is eliminated; the controller receives the hot water temperature information and the cold water temperature information, respectively opens the cold water valve and the hot water valve to a certain angle according to the set outlet water temperature and the internal algorithm of the degree, and feeds back the information of the warm water temperature sensor to carry out closed-loop control, so as to obtain the accurate outlet water temperature.

Specifically, referring to fig. 2, the water-feeding time button on the panel of the nixie tube display is suggested to be set at a certain time every morning, but whether water can be actually fed depends on the water quantity in the water heater and the temperature of hot water; the clock setting key is used for setting Beijing time and providing a standard for water supply time; the outlet water temperature key is used for adjusting according to weather, personal preference and the length of a warm water pipeline, the highest temperature does not exceed 52 ℃, and the adjustment is not needed after the highest temperature is generally set; the manual water feeding key is used for feeding water during primary installation; the panel also has the functions of displaying the temperature of warm water outlet, the temperature of hot water and the quantity of hot water; the controller is powered by AC220V, and its rear line bank is used for various temperature, water quantity information collection and control of two electric water valves.