CN108253647A - Solar water heater intelligent control circuit - Google Patents
Solar water heater intelligent control circuit Download PDFInfo
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- CN108253647A CN108253647A CN201810094785.1A CN201810094785A CN108253647A CN 108253647 A CN108253647 A CN 108253647A CN 201810094785 A CN201810094785 A CN 201810094785A CN 108253647 A CN108253647 A CN 108253647A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/40—Solar thermal energy, e.g. solar towers
Abstract
The invention discloses solar water heater intelligent control circuits, and commercially available Resistance Temperature, water level integrated transducer are placed in water tank for water-heater, are connect by three-core cable with being in the indoor control circuit of bathing；With microcontroller IC4 cores in order to control, water temperature and water level are converted into electric signal after amplification, analog-to-digital conversion to microcontroller processing and shown by Resistance Temperature, water level integrated transducer；The upper water of water heater stops being realized by controlling the valve opening of motor-driven valve and closing valve by microcontroller；By the real-time clock and timing function of clock circuit IC6, to control the timing automatic loading water of water heater；Separately there are upper water button and stop button, upper water and upper water can be stopped at any time, no matter timing automatic loading water or at any time upper water manually, there is water to be completely automatically stopped and water-temperature water-level display function.
Description
Technical field
The present invention relates to control circuits, and in particular to for solar water heater, with microcontroller core in order to control, has
Timing automatic loading water or at any time manual Shang Shui, water are completely automatically stopped and the intelligent control circuit of water-temperature water-level display function.
Background technology
Solar water heater is commonly installed roof equal-height position, and upper and lower mouth of a river installation is indoors, in order to install and user
Just, usually upper and lower water shares piece pipeline of water.How much are solar water heater water temperature inside, water before bathing, enough use,
It can not often predict, make troubles to user；Valve is opened during upper water will wait for a long time, and water, which is filled it up with, not to be had and can not
It learns；Closing valve is sometimes forgotten about, water spill-over, which goes out, to be caused to waste；In the nervous area of tap water supply, daytime, hydraulic pressure was inadequate, can not
Upper water needs water on when night is high with water low ebb, hydraulic pressure, on especially in winter, midnight gets up water it is more arduous with it is inconvenient.
At present, though having the product or technology in terms of solar water heater control, display in the market, generally it is only able to display water
Temperature, water level, it is impossible to water is automatically controlled, it can not the upper water of self-timing control.
Invention content
It is an object of the invention to：A kind of solar water heater intelligent control circuit is designed, using microprocessor（Monolithic
Machine）Control solar water heater, other than with water temperature, water level display function, also with timing automatic loading water control function and
Upper water management function manual at any time that is, to meeting of the upper water moment automatic loading water of setting, can also click startup at any time
Button realizes upper water manually；Either automatic loading water or manually upper water, are automatically stopped after water is full, can also click and stop at any time
Only button stops upper water；It is specially on duty that someone is not needed to during upper water, prevents water spill-over from going out and causes to waste, to user bring it is many just
Profit.
The present invention technical solution be：Commercially available Resistance Temperature, water level are placed in solar water heater storage water tank
Integrated transducer is connect by three-core cable with being in the indoor control circuit of bathing；Control circuit using microcontroller as core,
To in water tank temperature, water level is detected, and come out respectively by charactron and diode displaying；When microcontroller connects
Clock circuit, for setting the upper water moment；Microcontroller connects motor-driven valve control circuit, realizes the open and close of valve；Microcontroller
Keyboard was connected, for clock setting, the setting of upper water moment and upper water or stopping control manually；With microcontroller IC4（Model
STC89C51）For core, power unit, water level of temperature signal detection and display portion, electric valve control are connected on microcontroller IC4
System part, clock part and keyboard portion form control circuit, and the specific connection of the control circuit is as follows：
Power unit connection is as follows：With commercially available input AC 220V, the power supply Va of output direct current 9V, anode connects electronic all the way
Valve control section, another way connection 7805 input terminal of three terminal integrated voltage stabilizer, 7805 output terminals obtain+5V regulated power supply Vb, are
Other parts are powered；
Temperature, water level signal detection connect as follows with display portion：Commercially available Resistance Temperature, water level integrated transducer are placed in heat
In water heater storage water tank, leading-out terminal common end COM, temperature signal output terminal W1, water level signal output terminal S1 pass through three cores electricity
Cable connects control circuit, and COM ends connection precision+5V power supply Vc, W1 ends connect resistance RW to ground, connect R0 to COM, connection electricity
Hinder R8 after with amplifier 1C1-1 in-phase input ends（+）Connection, S1 ends connection resistance RS to ground, connect after resistance R15 with amplifier
IC1-2 in-phase input ends（+）Connection, by amplifier 1C1-1 and amplifier IC1-2（Amplifier model LM358,1C1-1, IC1-2 are
Two amplifiers being integrated in LM358）Temperature and water level signal are amplified respectively, and after through analog-digital converter IC2（Model
For ADC0832）Being converted into digital signal send microcontroller to handle；By controllable accurate integrated regulator IC3（Model TL431）, electricity
Hinder R2, R3, R4 composition+5V precision voltage regulators Vc；The cathode connecting resistance R2 of IC3, transistor emitter inside optocoupler LP1 is connect again,
Transistor collector connects+9V power supplys inside LP1, and the plus earth of IC3 arrives its cathode and sun respectively with reference to pole connecting resistance R3, R4
Pole, the cathode of IC3 obtain+5V precision voltage regulators Vc；Precision voltage regulator Vc serial adjustables hinder VR and resistance R5 to ground；By resistance
The voltage that R5 divides is connected to the inverting input of amplifier IC1-1 through resistance R6（）, the output terminal of amplifier IC1-1 connects feedback resistance
R7 is to inverting input（）；The in-phase input end of amplifier IC1-1（+）Connecting resistance R8 is followed by the W1 ends of temperature sensor, simultaneously
Connecting resistance R9 to ground；The output terminal series resistance R10 of amplifier IC1-1 to analog-digital converter IC2（Model ADC0832）Input
Hold 2 feet（CH0）, while 2 feet meet capacitance C1 and are used to filter to ground, resistance R10 and capacitance C1；Precision voltage regulator Vc series resistances
R11 and resistance R12 to ground；The voltage divided by resistance R12 is connected to the inverting input of amplifier IC1-2 through resistance R13（）, fortune
The output terminal for putting IC1-2 meets feedback resistance R14 to inverting input（）；The in-phase input end of amplifier IC1-2（+）Connecting resistance
R15 is followed by the S1 ends of water level sensor, while connecting resistance R16 is to ground, the output terminal series resistance R17 of amplifier IC1-2 to modulus
Converter IC 2（Model ADC0832）3 foot of input terminal（CH1）, while 2 feet meet capacitance C2 to ground, resistance R17 and capacitance C2
For filtering；5 feet of analog-digital converter IC2（DO）, 6 feet（DI）Short circuit is followed by the P3.7 pins of microcontroller, 1 foot（/CS）, 7 feet
（CLK）P3.5, P3.6 pin of microcontroller IC4 is connect respectively；Water level sensor electrode is impregnated in water because long-term logical in order to prevent
Couple corrosion caused by electricity extends its service life, and temperature, water level signal are primary at interval of detection in 1 minute, are only examined in water level, temperature
That surveys is instantaneous（About 1ms）It is powered to sensor, other times power-off, the power supply Vc of sensor is passed through light by microcontroller IC4 thus
Coupling LP1 is controlled, microcontroller P1.7 pins output low level during detection, triode ON inside optocoupler LP1, Vc=5V, detection knot
Beam, microcontroller P1.7 pins output high level, the triode cut-off of optocoupler LP1 inside, Vc=0；Optocoupler LP1 interior light emitting diodes
Anode meet Vb, cathode series limiting resistor R1 is followed by the P1.7 pins of microcontroller IC4；D1-D5 points 5 sections of light emitting diode comes
Show the height of water level, their anode meets+5V power supply Vb, after cathode difference series limiting resistor R21-R25 successively with list
P0.1-P0.5 connections of piece machine IC4；By Digitron display driver circuit IC5（Model MAX7219）It is total to 2 quaternities
Cathode digital tube（Model SM420364）8 LED charactrons dynamic scanning displaying circuits are formed, for read clock（When,
Point）And water temperature；19 feet of IC5 connect+5V power supplys, 4 and 9 feet ground connection, the indirect resistance R26 of 18 and 19 feet, 1 foot（DIN）, 12 feet
（LAOD）, 13 feet（CLK）P2.0, P2.1 and P2.2 pin of microcontroller IC4 is connect respectively, and stroke output terminal and position select end to connect respectively
The corresponding stroke end of 8 LED charactrons and common end；
The connection of electrically operated valve control section is as follows：Electrically operated valve is that the rotating realization of motor is leaned on to be turned on and off, using forever
The electrically operated valve of magnetic direct current generator driving, as long as its steering can be changed in the electric power polarity for changing this motor；By microcontroller IC4
By the way that relay K1 and K2 is controlled to realize the rotating of valve driving machine M, valve opening is in place or closing is in place by detecting motor
Locked rotor current realize；The coil one of relay K1, K2 terminate+9V power supplys, and the other end connects three poles inside optocoupler LP2, LP3 respectively
The collector of pipe, the emitter ground connection of optocoupler LP2, LP3 inside triode；The anode of optocoupler LP2, LP3 interior light emitting diodes
Meet+5V power supply Vb, cathode connects P1.4, P1.5 pin of microcontroller IC4 after series resistance R30, R31 successively respectively；Relay K1,
The normally opened stationary contact parallel connection of K2 is followed by+9V power supplys Va, all the way through examining leakage resistance R30 ground connection, another way after normally closed stationary contact parallel connection
Through resistance R31 to triode（NPN type）The base stage of VT；The movable contact of relay K1, K2 connect two ends of valve driving machine M respectively
Son；Shunt capacitance C5 between the base stage and ground of triode VT, triode VT emitter ground connection, collector series resistance R32 to+
5V power supply Vb, while collector connects the P1.6 pins of microcontroller IC4；The P1.4 outputs low level of microcontroller IC4, P1.5 during rotating forward
Export high level, optocoupler LP2 conducting, LP3 cut-off, relay K2 be attracted, K3 release, electric current by+9V power supplys, K1-1, motor,
K1-2, R30 to ground；The P1.4 outputs high level of microcontroller IC4, P1.5 output low levels during reversion, optocoupler LP2 cut-offs, LP3 are led
Logical, relay K2 releases, K3 are attracted, and electric current is by+9V power supplys, K1-2, motor, K1-1, R30 to ground；Motor rotate forward or
Reversion, when valve opening or closing can all cause motor rotation blockage in place so that current of electric increases, voltage raising on resistance R30,
When this voltage is more than triode VT emitter junction dead zone voltages（Silicone tube about 0.6V）When, triode VT saturation conductions, collector
Become low level, microcontroller IC4 is detected makes its P1.4, P1.5 pin export high level, optocoupler when P1.6 feet are low level
LP2, LP3 are turned off, and relay K2, K3 discharge, motor stalling；Resistance R31, capacitance C5 avoid electric motor starting for filtering
When caused by transient current is larger triode VT malfunction；
The connection of clock part is as follows：Chip IC 6（Model DS1302）For date, clock chip, the static state of 31 bytes is included
RAM；By main power source Vb and stand-by power supply E（3.6V, 60mAh nickel-cadmium cell）Dual power supply, IC6 is by Vb when main power source Vb has electricity
It powers and is stand-by power supply E chargings, powered when Vb is without electricity by stand-by power supply E, data are not lost in uninterrupted, RAM when ensureing；
Real-time clock was generated with IC6, the upper water moment of timing water-feeding is stored in its internal RAM；1 foot of IC6 meets main power source Vb, and 2,3
Foot meets capacitance C3, C4 to ground respectively, and the indirect crystal oscillator JZ of bipod, 4 feet ground connection, 8 feet meet the anode of stand-by power supply E, E
Cathode ground connection, 5,6,7 feet connect P3.1, P3.2 and P3.3 pin of microcontroller IC4 respectively；
Keyboard portion connection is as follows：Keyboard is formed by 4 Independent keys 1-4, for adjustment clock；The water moment in setting；Manually
Upper water and stopping control；By a 1 clock setting state of set key, at this moment adjustment real-time clock；Enter by set key 1 twice upper
The water moment sets state, and adjusting key 2 and minute adjusting key 3 adjust hour and minute respectively by the hour under the two setting states,
Confirm by acknowledgement key 4, time data, which is automatically stored to internal RAM and exits setting state, after confirmation returns to operating status；It is transporting
Hour adjusting key is upper water management key during row state, and minute adjusting key is stops control key；One end ground connection of button 1-4 is another
End connects P1.0-P1.3 pins of microcontroller IC4 respectively.
The present invention has the following advantages：
1st, not only can timing automatic loading water, but also can upper water, water be completely automatically stopped manually at any time；
2nd, it is only powered in the instantaneous of water level detecting to sensor, mitigates the couple corrosion of sensor electrode in water significantly, extend
Its service life；
3rd, it is shut down by detecting the locked rotor current of valve driving machine to control, enormously simplifies the circuit structure of electrically operated valve.
Description of the drawings
Fig. 1 is the circuit diagram of the present invention.
In figure：0 is power unit, and 1 is water level of temperature signal detection and display portion, and 2 be motor-driven valve control section, and 3 are
Clock part, 4 keyboard portions.
Specific embodiment
The technical solution further illustrated the present invention below in conjunction with the accompanying drawings, but it is not to be construed as the limit to technical solution
System.
As shown in Figure 1, the solar water heater intelligent control circuit places commercially available resistance-type temperature in water tank for water-heater
Degree, water level integrated transducer, are connect by three-core cable with being in the indoor control circuit of bathing；Control circuit is with microcontroller
For core, in water tank temperature, water level is detected, and come out respectively by charactron and diode displaying；Monolithic
Machine connects clock circuit, for setting the upper water moment；Microcontroller connects motor-driven valve control circuit, realizes unlatching and the pass of valve
It closes；Microcontroller connects keyboard, for clock setting, the setting of upper water moment and upper water or stopping control manually；With microcontroller IC4
（Model STC89C51）For core, connected on microcontroller IC4 power unit, water level of temperature signal detection and display portion,
Motor-driven valve control section, clock part and keyboard portion form control circuit, and the specific connection of the control circuit is as follows：
Power unit connection is as follows：With commercially available input AC 220V, the power supply Va of output direct current 9V, anode connects electronic all the way
Valve control section, another way connection 7805 input terminal of three terminal integrated voltage stabilizer, 7805 output terminals obtain+5V regulated power supply Vb, are
Other parts are powered；
Temperature, water level signal detection connect as follows with display portion：Commercially available temperature, water level sensor are placed in water tank for water-heater
In, leading-out terminal common end COM, temperature signal output terminal W1, water level signal output terminal S1 are connected by three-core cable and controlled
Circuit, COM ends connection precision+5V power supply Vc, W1 ends connection resistance RW to ground, connects R0 to COM, connect after resistance R8 with fortune
Put 1C1-1 in-phase input ends（+）Connection, S1 ends connection resistance RS to ground, connect after resistance R15 with amplifier IC1-2 homophase inputs
End（+）Connection, by amplifier 1C1-1 and amplifier IC1-2（Amplifier model LM358,1C1-1, IC1-2 are integrated in LM358
Two amplifiers）Temperature and water level signal are amplified respectively, and after through analog-digital converter IC2（Model ADC0832）Turn
Turning to digital signal send microcontroller to handle；By controllable accurate integrated regulator IC3（Model TL431）, resistance R2, R3, R4 structure
Into+5V precision voltage regulators Vc；The cathode connecting resistance R2 of IC3, transistor emitter inside optocoupler LP1, LP1 inside triode are connect again
Collector connects+9V power supplys, and the plus earth of IC3 arrives its cathode and anode respectively with reference to pole connecting resistance R3, R4, and the cathode of IC3 obtains
To+5V precision voltage regulators Vc；Precision voltage regulator Vc serial adjustables hinder VR and resistance R5 to ground；It is passed through by the voltage that resistance R5 divides
Resistance R6 is connected to the inverting input of amplifier IC1-1（）, the output terminal of amplifier IC1-1 meets feedback resistance R7 to inverting input
（）；The in-phase input end of amplifier IC1-1（+）Connecting resistance R8 is followed by the W1 ends of temperature sensor, while connecting resistance R9 is to ground；
The output terminal series resistance R10 of amplifier IC1-1 to analog-digital converter IC2（Model ADC0832）2 foot of input terminal（CH0）, together
When 2 feet meet capacitance C1 to ground, resistance R10 and capacitance C1 are for filtering；Precision voltage regulator Vc series resistances R11 and resistance R12 are arrived
Ground；The voltage divided by resistance R12 is connected to the inverting input of amplifier IC1-2 through resistance R13（）, the output of amplifier IC1-2
Feedback resistance R14 is terminated to inverting input（）；The in-phase input end of amplifier IC1-2（+）Connecting resistance R15 is followed by water level biography
The S1 ends of sensor, at the same connecting resistance R16 to ground, the output terminal series resistance R17 to analog-digital converter IC2 of amplifier IC1-2（Model
For ADC0832）3 foot of input terminal（CH1）, while 2 feet meet capacitance C2 and are used to filter to ground, resistance R17 and capacitance C2；Modulus turns
5 feet of parallel operation IC2（DO）, 6 feet（DI）Short circuit is followed by the P3.7 pins of microcontroller, 1 foot（/CS）, 7 feet（CLK）Order piece respectively
P3.5, P3.6 pin of machine IC4；Water level sensor electrode impregnates the electrification corruption caused by being electrified for a long time in water in order to prevent
It loses, extends its service life, temperature, water level signal are primary at interval of detection in 1 minute, only give sensing in water level, the instantaneous of temperature detection
Device is powered, and other times power-off, the power supply Vc of sensor is controlled by microcontroller IC4 by optocoupler LP1 thus, microcontroller during detection
P1.7 pins output low level, optocoupler LP1 inside triode ON, Vc=5V, detection terminate, and the output of microcontroller P1.7 pins is high
Level, the triode cut-off of optocoupler LP1 inside, Vc=0；The anode of optocoupler LP1 interior light emitting diodes connects Vb, cathode series connection current limliting
Resistance R1 is followed by the P1.7 pins of microcontroller IC4；Light emitting diode D1-D5 divides 5 sections to show the height of water level, their sun
+ 5V power supply Vb are extremely met, are connected successively with P0.1-P0.5 of microcontroller IC4 after cathode difference series limiting resistor R21-R25
It connects；By Digitron display driver circuit IC5（Model MAX7219）With 2 quaternity common cathode charactrons（Model
SM420364）8 LED charactrons dynamic scanning displaying circuits are formed, for read clock（When, point）And water temperature；19 feet of IC5
Connect+5V power supplys, 4 and 9 feet ground connection, the indirect resistance R26 of 18 and 19 feet, 1 foot（DIN）, 12 feet（LAOD）, 13 feet（CLK）Respectively
P2.0, P2.1 and P2.2 pin of microcontroller IC4 is connect, stroke output terminal and position select end to connect the corresponding pen of 8 LED charactrons respectively
Draw end and common end；
The connection of electrically operated valve control section is as follows：Electrically operated valve is that the rotating realization of motor is leaned on to be turned on and off, using forever
The electrically operated valve of magnetic direct current generator driving, as long as its steering can be changed in the electric power polarity for changing this motor；By microcontroller IC4
By the way that relay K1 and K2 is controlled to realize the rotating of valve driving machine M, valve opening is in place or closing is in place by detecting motor
Locked rotor current realize；The coil one of relay K1, K2 terminate+9V power supplys, and the other end connects three poles inside optocoupler LP2, LP3 respectively
The collector of pipe, the emitter ground connection of optocoupler LP2, LP3 inside triode；The anode of optocoupler LP2, LP3 interior light emitting diodes
Meet+5V power supply Vb, cathode connects P1.4, P1.5 pin of microcontroller IC4 after series resistance R30, R31 successively respectively；Relay K1,
The normally opened stationary contact parallel connection of K2 is followed by+9V power supplys Va, all the way through examining leakage resistance R30 ground connection, another way after normally closed stationary contact parallel connection
Through resistance R31 to triode（NPN type）The base stage of VT；The movable contact of relay K1, K2 connect two ends of valve driving machine M respectively
Son；Shunt capacitance C5 between the base stage and ground of triode VT, triode VT emitter ground connection, collector series resistance R32 to+
5V power supply Vb, while collector connects the P1.6 pins of microcontroller IC4；The P1.4 outputs low level of microcontroller IC4, P1.5 during rotating forward
Export high level, optocoupler LP2 conducting, LP3 cut-off, relay K2 be attracted, K3 release, electric current by+9V power supplys, K1-1, motor,
K1-2, R30 to ground；The P1.4 outputs high level of microcontroller IC4, P1.5 output low levels during reversion, optocoupler LP2 cut-offs, LP3 are led
Logical, relay K2 releases, K3 are attracted, and electric current is by+9V power supplys, K1-2, motor, K1-1, R30 to ground；Motor rotate forward or
Reversion, when valve opening or closing can all cause motor rotation blockage in place so that current of electric increases, voltage raising on resistance R30,
When this voltage is more than triode VT emitter junction dead zone voltages（Silicone tube about 0.6V）When, triode VT saturation conductions, collector
Become low level, microcontroller IC4 is detected makes its P1.4, P1.5 pin export high level, optocoupler when P1.6 feet are low level
LP2, LP3 are turned off, and relay K2, K3 discharge, motor stalling；Resistance R31, capacitance C5 avoid electric motor starting for filtering
When caused by transient current is larger triode VT malfunction；
The connection of clock part is as follows：Chip IC 6（Model DS1302）For date, clock chip, the static state of 31 bytes is included
RAM；By main power source Vb and stand-by power supply E（3.6V, 60mAh nickel-cadmium cell）Dual power supply, IC6 is by Vb when main power source Vb has electricity
It powers and is stand-by power supply E chargings, powered when Vb is without electricity by stand-by power supply E, data are not lost in uninterrupted, RAM when ensureing；
IC6 generates real-time clock, and the upper water moment of timing water-feeding is stored in its internal RAM；1 foot of IC6 connects main power source Vb, 2,3 feet
Capacitance C3, C4 are met respectively to ground, and the indirect crystal oscillator JZ of bipod, 4 feet ground connection, 8 feet connect the anode of stand-by power supply E, E's
Cathode is grounded, and 5,6,7 feet connect P3.1, P3.2 and P3.3 pin of microcontroller IC4 respectively；
Keyboard portion connection is as follows：Keyboard is formed by 4 Independent keys 1-4, for adjustment clock；The water moment in setting；Manually
Upper water and stopping control；By a 1 clock setting state of set key, at this moment adjustment real-time clock；Enter by set key 1 twice upper
The water moment sets state, and adjusting key 2 and minute adjusting key 3 adjust hour and minute respectively by the hour under the two setting states,
Confirm by acknowledgement key 4, time data, which is automatically stored to internal RAM and exits setting state, after confirmation returns to operating status；It is transporting
Hour adjusting key is upper water management key during row state, and minute adjusting key is stops control key；One end ground connection of button 1-4 is another
End connects P1.0-P1.3 pins of microcontroller IC4 respectively.
Claims (1)
1. solar water heater intelligent control circuit places commercially available Resistance Temperature, water level integration in water tank for water-heater
Sensor is connect by three-core cable with being in the indoor control circuit of bathing；Control circuit is using microcontroller as core, to water tank
Interior temperature, water level are detected, and are come out respectively by charactron and diode displaying；Microcontroller connection clock electricity
Road, for setting the upper water moment；Microcontroller connects motor-driven valve control circuit, realizes the open and close of valve；Microcontroller connects
Keyboard, for clock setting, the setting of upper water moment and upper water or stopping control manually；It is characterized in that：With microcontroller IC4（Type
Number be STC89C51）For core, power unit, water level of temperature signal detection and display portion, electronic are connected on microcontroller IC4
Valve control section, clock part and keyboard portion form control circuit, and the specific connection of the control circuit is as follows：
Power unit connection is as follows：With commercially available input AC 220V, the power supply Va of output direct current 9V, anode connects electronic all the way
Valve control section, another way connection 7805 input terminal of three terminal integrated voltage stabilizer, 7805 output terminals obtain+5V regulated power supply Vb, are
Other parts are powered；
Temperature, water level signal detection connect as follows with display portion：Commercially available temperature, water level sensor are placed in water tank for water-heater
In, leading-out terminal common end COM, temperature signal output terminal W1, water level signal output terminal S1 are connected by three-core cable and controlled
Circuit, COM ends connection precision+5V power supply Vc, W1 ends connection resistance RW to ground, connects R0 to COM, connect after resistance R8 with fortune
Put 1C1-1 in-phase input ends（+）Connection, S1 ends connection resistance RS to ground, connect after resistance R15 with amplifier IC1-2 homophase inputs
End（+）Connection, by amplifier 1C1-1 and amplifier IC1-2（Amplifier model LM358,1C1-1, IC1-2 are integrated in LM358
Two amplifiers）Temperature and water level signal are amplified respectively, and after through analog-digital converter IC2（Model ADC0832）Turn
Turning to digital signal send microcontroller to handle；By controllable accurate integrated regulator IC3（Model TL431）, resistance R2, R3, R4 structure
Into+5V precision voltage regulators Vc；The cathode connecting resistance R2 of IC3, transistor emitter inside optocoupler LP1, LP1 inside triode are connect again
Collector connects+9V power supplys, and the plus earth of IC3 arrives its cathode and anode respectively with reference to pole connecting resistance R3, R4, and the cathode of IC3 obtains
To+5V precision voltage regulators Vc；Precision voltage regulator Vc serial adjustables hinder VR and resistance R5 to ground；It is passed through by the voltage that resistance R5 divides
Resistance R6 is connected to the inverting input of amplifier IC1-1（）, the output terminal of amplifier IC1-1 meets feedback resistance R7 to inverting input
（）；The in-phase input end of amplifier IC1-1（+）Connecting resistance R8 is followed by the W1 ends of temperature sensor, while connecting resistance R9 is to ground；
The output terminal series resistance R10 of amplifier IC1-1 to analog-digital converter IC2（Model ADC0832）2 foot of input terminal（CH0）, together
When 2 feet meet capacitance C1 to ground, resistance R10 and capacitance C1 are for filtering；Precision voltage regulator Vc series resistances R11 and resistance R12 are arrived
Ground；The voltage divided by resistance R12 is connected to the inverting input of amplifier IC1-2 through resistance R13（）, the output of amplifier IC1-2
Feedback resistance R14 is terminated to inverting input（）；The in-phase input end of amplifier IC1-2（+）Connecting resistance R15 is followed by water level biography
The S1 ends of sensor, at the same connecting resistance R16 to ground, the output terminal series resistance R17 to analog-digital converter IC2 of amplifier IC1-2（Model
For ADC0832）3 foot of input terminal（CH1）, while 2 feet meet capacitance C2 and are used to filter to ground, resistance R17 and capacitance C2；Modulus turns
5 feet of parallel operation IC2（DO）, 6 feet（DI）Short circuit is followed by the P3.7 pins of microcontroller, 1 foot（/CS）, 7 feet（CLK）Order piece respectively
P3.5, P3.6 pin of machine IC4；Water level sensor electrode impregnates the electrification corruption caused by being electrified for a long time in water in order to prevent
It loses, extends its service life, temperature, water level signal are primary at interval of detection in 1 minute, only give sensing in water level, the instantaneous of temperature detection
Device is powered, and other times power-off, the power supply Vc of sensor is controlled by microcontroller IC4 by optocoupler LP1 thus, microcontroller during detection
P1.7 pins output low level, optocoupler LP1 inside triode ON, Vc=5V, detection terminate, and the output of microcontroller P1.7 pins is high
Level, the triode cut-off of optocoupler LP1 inside, Vc=0；The anode of optocoupler LP1 interior light emitting diodes connects Vb, cathode series connection current limliting
Resistance R1 is followed by the P1.7 pins of microcontroller IC4；Light emitting diode D1-D5 divides 5 sections to show the height of water level, their sun
+ 5V power supply Vb are extremely met, are connected successively with P0.1-P0.5 of microcontroller IC4 after cathode difference series limiting resistor R21-R25
It connects；By Digitron display driver circuit IC5（Model MAX7219）With 2 quaternity common cathode charactrons（Model
SM420364）8 LED charactrons dynamic scanning displaying circuits are formed, for read clock（When, point）And water temperature；19 feet of IC5
Connect+5V power supplys, 4 and 9 feet ground connection, the indirect resistance R26 of 18 and 19 feet, 1 foot（DIN）, 12 feet（LAOD）, 13 feet（CLK）Respectively
P2.0, P2.1 and P2.2 pin of microcontroller IC4 is connect, stroke output terminal and position select end to connect the corresponding pen of 8 LED charactrons respectively
Draw end and common end；
The connection of electrically operated valve control section is as follows：Electrically operated valve is that the rotating realization of motor is leaned on to be turned on and off, using forever
The electrically operated valve of magnetic direct current generator driving, as long as its steering can be changed in the electric power polarity for changing this motor；By microcontroller IC4
By the way that relay K1 and K2 is controlled to realize the rotating of valve driving machine M, valve opening is in place or closing is in place by detecting motor
Locked rotor current realize；The coil one of relay K1, K2 terminate+9V power supplys, and the other end connects three poles inside optocoupler LP2, LP3 respectively
The collector of pipe, the emitter ground connection of optocoupler LP2, LP3 inside triode；The anode of optocoupler LP2, LP3 interior light emitting diodes
Meet+5V power supply Vb, cathode connects P1.4, P1.5 pin of microcontroller IC4 after series resistance R30, R31 successively respectively；Relay K1,
The normally opened stationary contact parallel connection of K2 is followed by+9V power supplys Va, all the way through examining leakage resistance R30 ground connection, another way after normally closed stationary contact parallel connection
Through resistance R31 to triode（NPN type）The base stage of VT；The movable contact of relay K1, K2 connect two ends of valve driving machine M respectively
Son；Shunt capacitance C5 between the base stage and ground of triode VT, triode VT emitter ground connection, collector series resistance R32 to+
5V power supply Vb, while collector connects the P1.6 pins of microcontroller IC4；The P1.4 outputs low level of microcontroller IC4, P1.5 during rotating forward
Export high level, optocoupler LP2 conducting, LP3 cut-off, relay K2 be attracted, K3 release, electric current by+9V power supplys, K1-1, motor,
K1-2, R30 to ground；The P1.4 outputs high level of microcontroller IC4, P1.5 output low levels during reversion, optocoupler LP2 cut-offs, LP3 are led
Logical, relay K2 releases, K3 are attracted, and electric current is by+9V power supplys, K1-2, motor, K1-1, R30 to ground；Motor rotate forward or
Reversion, when valve opening or closing can all cause motor rotation blockage in place so that current of electric increases, voltage raising on resistance R30,
When this voltage is more than triode VT emitter junction dead zone voltages（Silicone tube about 0.6V）When, triode VT saturation conductions, collector
Become low level, microcontroller IC4 is detected makes its P1.4, P1.5 pin export high level, optocoupler when P1.6 feet are low level
LP2, LP3 are turned off, and relay K2, K3 discharge, motor stalling；Resistance R31, capacitance C5 avoid electric motor starting for filtering
When caused by transient current is larger triode VT malfunction；
The connection of clock part is as follows：Chip IC 6（Model DS1302）For date, clock chip, the static state of 31 bytes is included
RAM；By main power source Vb and stand-by power supply E（3.6V, 60mAh nickel-cadmium cell）Dual power supply, IC6 is by Vb when main power source Vb has electricity
It powers and is stand-by power supply E chargings, powered when Vb is without electricity by stand-by power supply E, data are not lost in uninterrupted, RAM when ensureing；
IC6 generates real-time clock, and the upper water moment of timing water-feeding is stored in its internal RAM；1 foot of IC6 connects main power source Vb, 2,3 feet
Capacitance C3, C4 are met respectively to ground, and the indirect crystal oscillator JZ of bipod, 4 feet ground connection, 8 feet connect the anode of stand-by power supply E, E's
Cathode is grounded, and 5,6,7 feet connect P3.1, P3.2 and P3.3 pin of microcontroller IC4 respectively；
Keyboard portion connection is as follows：Keyboard is formed by 4 Independent keys 1-4, for adjustment clock；The water moment in setting；Manually
Upper water and stopping control；By a 1 clock setting state of set key, at this moment adjustment real-time clock；Enter by set key 1 twice upper
The water moment sets state, and adjusting key 2 and minute adjusting key 3 adjust hour and minute respectively by the hour under the two setting states,
Confirm by acknowledgement key 4, time data, which is automatically stored to internal RAM and exits setting state, after confirmation returns to operating status；It is transporting
Hour adjusting key is upper water management key during row state, and minute adjusting key is stops control key；One end ground connection of button 1-4 is another
End connects P1.0-P1.3 pins of microcontroller IC4 respectively.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810094785.1A CN108253647A (en) | 2018-01-31 | 2018-01-31 | Solar water heater intelligent control circuit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810094785.1A CN108253647A (en) | 2018-01-31 | 2018-01-31 | Solar water heater intelligent control circuit |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109601424A (en) * | 2019-01-15 | 2019-04-12 | 淮安信息职业技术学院 | Intelligence hatching intelligent monitoring circuit |
| CN109638846A (en) * | 2019-01-22 | 2019-04-16 | 江苏艾和系统集成工程有限公司 | Electric load dispensing controller |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2351714Y (en) * | 1998-08-18 | 1999-12-01 | 南京物研科技实业有限公司 | Automatic controller for solar energy water heater |
| CN2402537Y (en) * | 1999-11-27 | 2000-10-25 | 秦洪礼 | Split water dispenser for vehicle |
| JP2003049586A (en) * | 2001-08-06 | 2003-02-21 | Asmo Co Ltd | Opening and closing body controlling device |
| CN1566859A (en) * | 2003-06-25 | 2005-01-19 | 吴志 | Automatic control instrument for solar water heater |
| CN1936450A (en) * | 2006-09-27 | 2007-03-28 | 孟东昕 | Water-source converting apparatus of electric heating-water device |
| CN101692169A (en) * | 2009-10-28 | 2010-04-07 | 上海沪工汽车电器有限公司 | Power vehicle window controller |
| CN201852615U (en) * | 2010-08-24 | 2011-06-01 | 陈业斌 | Alternating current electrolytic liquid level sensor |
| CN102359320A (en) * | 2011-07-14 | 2012-02-22 | 安徽江淮汽车股份有限公司 | Power window switch |
| CN202494941U (en) * | 2012-02-17 | 2012-10-17 | 吴端钦 | Intelligent water boiling control device |
| CN103969041A (en) * | 2014-05-21 | 2014-08-06 | 哈尔滨工程大学 | Opening-closing reliability test device for sea valve |
| CN106020051A (en) * | 2016-07-15 | 2016-10-12 | 淮安信息职业技术学院 | Lower computer circuit of photovoltaic power station photovoltaic module operation state online patrol inspection system |
| CN205809715U (en) * | 2016-07-08 | 2016-12-14 | 淮安信息职业技术学院 | There is the upper water management circuit of water level display function |
-
2018
- 2018-01-31 CN CN201810094785.1A patent/CN108253647A/en active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2351714Y (en) * | 1998-08-18 | 1999-12-01 | 南京物研科技实业有限公司 | Automatic controller for solar energy water heater |
| CN2402537Y (en) * | 1999-11-27 | 2000-10-25 | 秦洪礼 | Split water dispenser for vehicle |
| JP2003049586A (en) * | 2001-08-06 | 2003-02-21 | Asmo Co Ltd | Opening and closing body controlling device |
| CN1566859A (en) * | 2003-06-25 | 2005-01-19 | 吴志 | Automatic control instrument for solar water heater |
| CN1936450A (en) * | 2006-09-27 | 2007-03-28 | 孟东昕 | Water-source converting apparatus of electric heating-water device |
| CN101692169A (en) * | 2009-10-28 | 2010-04-07 | 上海沪工汽车电器有限公司 | Power vehicle window controller |
| CN201852615U (en) * | 2010-08-24 | 2011-06-01 | 陈业斌 | Alternating current electrolytic liquid level sensor |
| CN102359320A (en) * | 2011-07-14 | 2012-02-22 | 安徽江淮汽车股份有限公司 | Power window switch |
| CN202494941U (en) * | 2012-02-17 | 2012-10-17 | 吴端钦 | Intelligent water boiling control device |
| CN103969041A (en) * | 2014-05-21 | 2014-08-06 | 哈尔滨工程大学 | Opening-closing reliability test device for sea valve |
| CN205809715U (en) * | 2016-07-08 | 2016-12-14 | 淮安信息职业技术学院 | There is the upper water management circuit of water level display function |
| CN106020051A (en) * | 2016-07-15 | 2016-10-12 | 淮安信息职业技术学院 | Lower computer circuit of photovoltaic power station photovoltaic module operation state online patrol inspection system |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109601424A (en) * | 2019-01-15 | 2019-04-12 | 淮安信息职业技术学院 | Intelligence hatching intelligent monitoring circuit |
| CN109638846A (en) * | 2019-01-22 | 2019-04-16 | 江苏艾和系统集成工程有限公司 | Electric load dispensing controller |
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Application publication date: 20180706 |