A kind of air-source water heater power regulation circuit
Technical field
The present invention relates to field of circuit technology, more particularly to a kind of air-source water heater power regulation circuit.
Background technology
Air-source water heater is because of energy-saving and environmental protection, and free of contamination advantage is widely used by many enterprises and family, air energy
Water heater is mainly made up of the circulatory system and refrigerant, and operation principle is:Refrigerant compressor effect under in system internal circulation flow,
Liquid refrigerants flows through the low-temperature heat quantity in heat sink ambient air, is converted into gaseous state by liquid after heat absorption evaporation, gaseous state is cold
The low-temperature heat quantity absorbed in air is converted into heat of high temperature by the compressed boosting of matchmaker, heat is discharged when flowing through heat exchanger cold water is entered
Row heating, the refrigerant after heat release is converted into liquid by gaseous state, is again introduced into the low-temperature heat quantity in heat sink ambient air, then
Gaseous state is converted into after secondary heat absorption evaporation, boosting heating, refrigerant is constantly circulated, the low-temperature heat quantity in air is just constantly carried simultaneously
It is converted into heat of high temperature, release water cool water heating.
At present, air-source water heater is typically heated by Control, during air-source water heater compressor pressure build up,
The size of compressor horsepower will change the size of air-source water heater water temperature, and present air-source water heater compressor horsepower leads to
Cross frequency converter and adjust the power of compressor, and then the water temperature in attemperater is in temperature constant state, or guarantor is made by water heater
Water temperature in reservoir is in temperature constant state, and either the power of frequency converter regulation compressor still makes insulation water by water heater
All there is common potential safety hazard in temperature constant state in water temperature in case, the pressure of air-source water heater compressor be it is limited,
If power is unstable, arbitrarily adjusted according to the water temperature in water tank, it will the service life of water tank is greatly reduced, when power mistake
When big, compressor blast is resulted even in, gives people to bring great injury.
So the present invention provides a kind of new scheme to solve this problem.
The content of the invention
For above-mentioned situation, to overcome the defect of prior art, the purpose of the present invention is to provide a kind of air energy thermal water
Device power regulation circuit, with being skillfully constructed, the characteristic of human oriented design, efficiently solves air-source water heater compressor liter
The problem of compressor potential safety hazard brought during temperature supercharging according to lower water temperature compressor horsepower.
Its technical scheme solved is, including pressure signal Acquisition Circuit and progressive power circuit for regulating and controlling, the pressure letter
Number Acquisition Circuit is passed through with mutually amplification and clamper 0 to the pressure signal after collection air-source water heater compressor pressure build up
After~20V, pressure signal controls the conducting and cut-off of the triode of progressive power circuit for regulating and controlling as drive signal;
The progressive power circuit for regulating and controlling uses triode Q1~Q4 control relays K1~K4 power on/off, due to relay
Device K1~K4 is in parallel, and relay K1~K4 connects with resistance R4~R7 respectively, therefore triode Q1~Q4 conducting step by step
Control relay K1~K4 power on/off step by step, triode Q1~Q4 vulnerabilities scan relay K1~K4 forceful electric power, resistance R4~
R7 partial pressures step by step, reach the function of the power regulation of motor in air-source water heater compressor.
Preferably, the pressure signal that the triode Q1~Q4 is gathered with pressure signal Acquisition Circuit is incremented by successively from 0V
+ 5V, triode Q1~Q4 is sequentially turned on.
Preferably, the resistance R4~R7 resistances it is identical and with any phase winding of motor in air-source water heater compressor
Resistance is identical, as relay K1~K4 is sequentially turned on, be followed successively by air-source water heater compressor motor provide 400W,
430W, 460W, 490W power, error range are 5W.
Due to the use of above technical scheme, the present invention has the following advantages that compared with prior art;
1, pressure signal Acquisition Circuit is to the pressure signal after collection air-source water heater compressor pressure build up by same
Mutually amplification and clamper are after 0~20V, and pressure signal controls leading for the triode of progressive power circuit for regulating and controlling as drive signal
Logical and cut-off, directly drives air-source water heater compressor horsepower using pressure signal, both ensure that the heated constant temperature of water tank
Effect, turn avoid the compressor brought during air-source water heater compressor pressure build up according to lower water temperature compressor horsepower
The problem of potential safety hazard.
2, progressive power circuit for regulating and controlling use triode Q1~Q4 control relays K1~K4 power on/off, triode Q1~
The Q4 K1 of conducting control relay step by step~K4 power on/off step by step, triode Q1~Q4 vulnerabilities scan relay K1~K4 is strong
The power of motor in electricity, resistance R4~R7 partial pressures step by step, regulation and control air-source water heater compressor, with vulnerabilities scan forceful electric power, safety
Reliably, while the power for regulating and controlling motor in compressor is relatively stable, there is very big practical value and promotional value.
Brief description of the drawings
Fig. 1 is a kind of integrated circuit figure of air-source water heater power regulation circuit of the invention.
Fig. 2 is a kind of progressive power circuit for regulating and controlling figure of air-source water heater power regulation circuit of the invention.
" → " represents electric potential signal flow direction in Fig. 2.
Embodiment
For the present invention foregoing and other technology contents, feature and effect, in following cooperation with reference to figures 1 through accompanying drawing 2
To in the detailed description of embodiment, can clearly present.The structure content being previously mentioned in following examples, is with specification
Accompanying drawing is reference.
Each exemplary embodiment of the present invention is described below with reference to accompanying drawings.
Embodiment one, a kind of air-source water heater power regulation circuit, including pressure signal Acquisition Circuit and progressive power
Circuit for regulating and controlling, the pressure signal Acquisition Circuit is passed through to the pressure signal after collection air-source water heater compressor pressure build up
With mutually amplification and clamper after 0~20V, pressure signal controls the triode of progressive power circuit for regulating and controlling as drive signal
Conducting and cut-off;
The progressive power circuit for regulating and controlling uses triode Q1~Q4 control relays K1~K4 power on/off, triode Q1
Base stage connect diode D2 positive pole, end points meets power supply+12V, triode Q1~Q4 hair to triode Q1~Q4 colelctor electrode altogether
Emitter-base bandgap grading difference contact relay K1~K4 contact 3, triode Q1 emitter stage connects triode Q2 base stage, triode Q2 transmitting
Pole connects triode Q3 base stage, and triode Q3 emitter stage connects triode Q4 base stage, and relay K1~K4 contact 4 connects
Ground, end points meets power supply+220V altogether for relay K1~K4 contact 1, the relay K1~K4 difference connecting resistance R4 of contact 2~R5's
One end, the resistance R4~R5 common end points of the other end connects PTC thermistor R9 one end, PTC thermistor R9 connection air energy thermals
Any phase winding of motor in hydrophone compressor, because relay K1~K4 is in parallel, and relay K1~K4 respectively with resistance R4
~R7 connects, therefore the triode Q1~Q4 K1 of conducting control relay step by step~K4 power on/off step by step, triode Q1~Q4
Vulnerabilities scan relay K1~K4 forceful electric power, resistance R4~R7 partial pressures step by step reach motor in air-source water heater compressor
The function of power regulation.
Embodiment two, on the basis of embodiment one, the pressure signal Acquisition Circuit is passed using model HM22 pressure
Sensor P1, in order to which the pressure signal for allowing pressure sensor P1 to gather can control triode Q1~Q4 conducting as drive signal
And cut-off, the amplification of transport and placing device OP1 positives is first passed through, the pressure signal after positive amplification is pure in abnormal signal, in order to protect entirely
Circuit, devises diode D1, D2 and resistance R8 by current potential clamper in 0~+20V, pressure sensor P1 power supply termination electricity
End points is grounded altogether for source+3.3V and electric capacity C1 one end, pressure sensor P1 earth terminal and the electric capacity C1 other end, pressure sensing
Device P1 output termination transport and placing device OP1 normal phase input end and resistance R1 one end, transport and placing device OP1 anti-phase input termination electric capacity
C2 and resistance R2 one end, transport and placing device OP1 power supply termination power+9V, transport and placing device OP1 earth terminal ground connection, transport and placing device OP1's
Export terminating resistor R1, R2 other end and resistance R3 one end, resistance R3 another termination capacitor C3 one end and diode
D1 negative pole, electric capacity C2 and C3 other end ground connection, diode D1 positive pole connects diode D2 positive pole and resistance R8 one end,
Resistance R8 another termination power+20V, diode D2 negative pole ground connection, wherein triode Q1~Q4 is with pressure signal
The pressure signal of Acquisition Circuit collection is sequentially turned on from 0V+5V incremented by successively, triode Q1~Q4, the resistance R4~R7 resistances
It is identical and identical with the resistance of any phase winding of motor in air-source water heater compressor, as relay K1~K4 is led successively
It is logical, the power that motor in air-source water heater compressor provides 400W, 430W, 460W, 490W is followed successively by, error range is 5W.
When the present invention is specifically used, the pressure signal Acquisition Circuit is to collection air-source water heater compressor pressure build up
Pressure signal afterwards is by with mutually amplification and clamper, after 0~20V, pressure signal is adjusted as drive signal control progressive power
Control the conducting and cut-off of the triode of circuit;The progressive power circuit for regulating and controlling using triode Q1~Q4 control relays K1~
K4 power on/off, because relay K1~K4 is in parallel, and relay K1~K4 connects with resistance R4~R7 respectively, therefore three poles
Pipe Q1~Q4 the K1 of conducting control relay step by step~K4 power on/off step by step, triode Q1~Q4 vulnerabilities scan relay K1
~K4 forceful electric power, resistance R4~R7 partial pressures step by step, reaches the function of the power regulation of motor in air-source water heater compressor;It is described
Pressure signal Acquisition Circuit uses model HM22 pressure sensor P1, for the pressure signal energy for allowing pressure sensor P1 to gather
Enough conductings and cut-off as drive signal control triode Q1~Q4, first pass through the amplification of transport and placing device OP1 positives, after positive amplification
Pressure signal it is pure in abnormal signal, in order to protect whole circuit, devise diode D1, D2 and resistance R8 exist current potential clamper
In 0~+20V.
When the pressure signal current potential of pressure signal Acquisition Circuit is in 0~5V, triode Q1 conductings, relay K1 obtains electric,
Relay K1 contact 1,2 is connected, and 400W power is provided for motor in air-source water heater compressor, error range is 5W,
Now the current potential of triode Q1 emitter stage is triode Q2 base potentials, that is to say triode Q2 control signal, triode
The current potential of Q1 base stage and the linear change of triode Q2 base potential, therefore when the pressure signal of pressure signal Acquisition Circuit
Current potential is in 0~5V, and triode Q2 can not be turned on, not up to triode Q2 conducting voltage;Similarly, when pressure signal gathers electricity
The pressure signal current potential on road is in 5~10V, and triode Q2 conductings, relay K2 obtains electric, and relay K2 contact 1,2 is connected, and is
Motor provides 430W power in air-source water heater compressor, and error range is 5W;When the pressure of pressure signal Acquisition Circuit
Signal potential is in 10~15V, and triode Q3 conductings, relay K3 obtains electric, and relay K3 contact 1,2 is connected, and is air energy
Motor provides 460W power in water heater compressor, and error range is 5W;When the pressure signal electricity of pressure signal Acquisition Circuit
Position is in 15~20V, and triode Q4 conductings, relay K4 obtains electric, and relay K4 contact 1,2 is connected, and is air-source water heater
Motor provides 490W power in compressor, and error range is 5W.
Described above is to combine embodiment further description made for the present invention, it is impossible to assert the present invention
Specific implementation is limited only to this;For belonging to the present invention and for those skilled in the technology concerned, based on skill of the present invention
Under the premise of art scheme thinking, the expansion made and operating method, the replacement of data, should all fall the scope of the present invention it
It is interior.